Pileus Git - ~andy/gtk/blob - gtk/gtkctree.c

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball, Josh MacDonald,
   3  * Copyright (C) 1997-1998 Jay Painter <jpaint@serv.net><jpaint@gimp.org>
   4  *
   5  * GtkCTree widget for GTK+
   6  * Copyright (C) 1998 Lars Hamann and Stefan Jeske
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Library General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Library General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Library General Public
  19  * License along with this library; if not, write to the
  20  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  21  * Boston, MA 02111-1307, USA.
  22  */
  23
  24 #include <stdlib.h>
  25 #include "gtkctree.h"
  26 #include "gtkbindings.h"
  27 #include "gtkmain.h"
  28 #include "gtkdnd.h"
  29 #include <gdk/gdkx.h>
  30 #include <gdk/gdkkeysyms.h>
  31
  32 #define PM_SIZE                    8
  33 #define TAB_SIZE                   (PM_SIZE + 6)
  34 #define CELL_SPACING               1
  35 #define CLIST_OPTIMUM_SIZE         512
  36 #define COLUMN_INSET               3
  37 #define DRAG_WIDTH                 6
  38
  39 #define ROW_TOP_YPIXEL(clist, row) (((clist)->row_height * (row)) + \
  40                                     (((row) + 1) * CELL_SPACING) + \
  41                                     (clist)->voffset)
  42 #define ROW_FROM_YPIXEL(clist, y)  (((y) - (clist)->voffset) / \
  43                                     ((clist)->row_height + CELL_SPACING))
  44 #define COLUMN_LEFT_XPIXEL(clist, col)  ((clist)->column[(col)].area.x \
  45                                     + (clist)->hoffset)
  46 #define COLUMN_LEFT(clist, column) ((clist)->column[(column)].area.x)
  47
  48 static inline gint
  49 COLUMN_FROM_XPIXEL (GtkCList * clist,
  50                     gint x)
  51 {
  52   gint i, cx;
  53
  54   for (i = 0; i < clist->columns; i++)
  55     if (clist->column[i].visible)
  56       {
  57         cx = clist->column[i].area.x + clist->hoffset;
  58
  59         if (x >= (cx - (COLUMN_INSET + CELL_SPACING)) &&
  60             x <= (cx + clist->column[i].area.width + COLUMN_INSET))
  61           return i;
  62       }
  63
  64   /* no match */
  65   return -1;
  66 }
  67
  68 #define GTK_CLIST_CLASS_FW(_widget_) GTK_CLIST_CLASS (((GtkObject*) (_widget_))->klass)
  69 #define CLIST_UNFROZEN(clist)     (((GtkCList*) (clist))->freeze_count == 0)
  70 #define CLIST_REFRESH(clist)    G_STMT_START { \
  71   if (CLIST_UNFROZEN (clist)) \
  72     GTK_CLIST_CLASS_FW (clist)->refresh ((GtkCList*) (clist)); \
  73 } G_STMT_END
  74
  75
  76 enum {
  77   ARG_0,
  78   ARG_N_COLUMNS,
  79   ARG_TREE_COLUMN,
  80   ARG_INDENT,
  81   ARG_SPACING,
  82   ARG_SHOW_STUB,
  83   ARG_LINE_STYLE,
  84   ARG_EXPANDER_STYLE
  85 };
  86
  87
  88 static void gtk_ctree_class_init        (GtkCTreeClass  *klass);
  89 static void gtk_ctree_init              (GtkCTree       *ctree);
  90 static void gtk_ctree_set_arg           (GtkObject      *object,
  91                                          GtkArg         *arg,
  92                                          guint           arg_id);
  93 static void gtk_ctree_get_arg           (GtkObject      *object,
  94                                          GtkArg         *arg,
  95                                          guint           arg_id);
  96 static void gtk_ctree_realize           (GtkWidget      *widget);
  97 static void gtk_ctree_unrealize         (GtkWidget      *widget);
  98 static gint gtk_ctree_button_press      (GtkWidget      *widget,
  99                                          GdkEventButton *event);
 100 static void ctree_attach_styles         (GtkCTree       *ctree,
 101                                          GtkCTreeNode   *node,
 102                                          gpointer        data);
 103 static void ctree_detach_styles         (GtkCTree       *ctree,
 104                                          GtkCTreeNode   *node,
 105                                          gpointer        data);
 106 static gint draw_cell_pixmap            (GdkWindow      *window,
 107                                          GdkRectangle   *clip_rectangle,
 108                                          GdkGC          *fg_gc,
 109                                          GdkPixmap      *pixmap,
 110                                          GdkBitmap      *mask,
 111                                          gint            x,
 112                                          gint            y,
 113                                          gint            width,
 114                                          gint            height);
 115 static void get_cell_style              (GtkCList       *clist,
 116                                          GtkCListRow    *clist_row,
 117                                          gint            state,
 118                                          gint            column,
 119                                          GtkStyle      **style,
 120                                          GdkGC         **fg_gc,
 121                                          GdkGC         **bg_gc);
 122 static gint gtk_ctree_draw_expander     (GtkCTree       *ctree,
 123                                          GtkCTreeRow    *ctree_row,
 124                                          GtkStyle       *style,
 125                                          GdkRectangle   *clip_rectangle,
 126                                          gint            x);
 127 static gint gtk_ctree_draw_lines        (GtkCTree       *ctree,
 128                                          GtkCTreeRow    *ctree_row,
 129                                          gint            row,
 130                                          gint            column,
 131                                          gint            state,
 132                                          GdkRectangle   *clip_rectangle,
 133                                          GdkRectangle   *cell_rectangle,
 134                                          GdkRectangle   *crect,
 135                                          GdkRectangle   *area,
 136                                          GtkStyle       *style);
 137 static void draw_row                    (GtkCList       *clist,
 138                                          GdkRectangle   *area,
 139                                          gint            row,
 140                                          GtkCListRow    *clist_row);
 141 static void draw_drag_highlight         (GtkCList        *clist,
 142                                          GtkCListRow     *dest_row,
 143                                          gint             dest_row_number,
 144                                          GtkCListDragPos  drag_pos);
 145 static void tree_draw_node              (GtkCTree      *ctree,
 146                                          GtkCTreeNode  *node);
 147 static void set_cell_contents           (GtkCList      *clist,
 148                                          GtkCListRow   *clist_row,
 149                                          gint           column,
 150                                          GtkCellType    type,
 151                                          const gchar   *text,
 152                                          guint8         spacing,
 153                                          GdkPixmap     *pixmap,
 154                                          GdkBitmap     *mask);
 155 static void set_node_info               (GtkCTree      *ctree,
 156                                          GtkCTreeNode  *node,
 157                                          const gchar   *text,
 158                                          guint8         spacing,
 159                                          GdkPixmap     *pixmap_closed,
 160                                          GdkBitmap     *mask_closed,
 161                                          GdkPixmap     *pixmap_opened,
 162                                          GdkBitmap     *mask_opened,
 163                                          gboolean       is_leaf,
 164                                          gboolean       expanded);
 165 static GtkCTreeRow *row_new             (GtkCTree      *ctree);
 166 static void row_delete                  (GtkCTree      *ctree,
 167                                          GtkCTreeRow   *ctree_row);
 168 static void tree_delete                 (GtkCTree      *ctree,
 169                                          GtkCTreeNode  *node,
 170                                          gpointer       data);
 171 static void tree_delete_row             (GtkCTree      *ctree,
 172                                          GtkCTreeNode  *node,
 173                                          gpointer       data);
 174 static void real_clear                  (GtkCList      *clist);
 175 static void tree_update_level           (GtkCTree      *ctree,
 176                                          GtkCTreeNode  *node,
 177                                          gpointer       data);
 178 static void tree_select                 (GtkCTree      *ctree,
 179                                          GtkCTreeNode  *node,
 180                                          gpointer       data);
 181 static void tree_unselect               (GtkCTree      *ctree,
 182                                          GtkCTreeNode  *node,
 183                                          gpointer       data);
 184 static void real_select_all             (GtkCList      *clist);
 185 static void real_unselect_all           (GtkCList      *clist);
 186 static void tree_expand                 (GtkCTree      *ctree,
 187                                          GtkCTreeNode  *node,
 188                                          gpointer       data);
 189 static void tree_collapse               (GtkCTree      *ctree,
 190                                          GtkCTreeNode  *node,
 191                                          gpointer       data);
 192 static void tree_collapse_to_depth      (GtkCTree      *ctree,
 193                                          GtkCTreeNode  *node,
 194                                          gint           depth);
 195 static void tree_toggle_expansion       (GtkCTree      *ctree,
 196                                          GtkCTreeNode  *node,
 197                                          gpointer       data);
 198 static void change_focus_row_expansion  (GtkCTree      *ctree,
 199                                          GtkCTreeExpansionType expansion);
 200 static void real_select_row             (GtkCList      *clist,
 201                                          gint           row,
 202                                          gint           column,
 203                                          GdkEvent      *event);
 204 static void real_unselect_row           (GtkCList      *clist,
 205                                          gint           row,
 206                                          gint           column,
 207                                          GdkEvent      *event);
 208 static void real_tree_select            (GtkCTree      *ctree,
 209                                          GtkCTreeNode  *node,
 210                                          gint           column);
 211 static void real_tree_unselect          (GtkCTree      *ctree,
 212                                          GtkCTreeNode  *node,
 213                                          gint           column);
 214 static void real_tree_expand            (GtkCTree      *ctree,
 215                                          GtkCTreeNode  *node);
 216 static void real_tree_collapse          (GtkCTree      *ctree,
 217                                          GtkCTreeNode  *node);
 218 static void real_tree_move              (GtkCTree      *ctree,
 219                                          GtkCTreeNode  *node,
 220                                          GtkCTreeNode  *new_parent,
 221                                          GtkCTreeNode  *new_sibling);
 222 static void real_row_move               (GtkCList      *clist,
 223                                          gint           source_row,
 224                                          gint           dest_row);
 225 static void gtk_ctree_link              (GtkCTree      *ctree,
 226                                          GtkCTreeNode  *node,
 227                                          GtkCTreeNode  *parent,
 228                                          GtkCTreeNode  *sibling,
 229                                          gboolean       update_focus_row);
 230 static void gtk_ctree_unlink            (GtkCTree      *ctree,
 231                                          GtkCTreeNode  *node,
 232                                          gboolean       update_focus_row);
 233 static GtkCTreeNode * gtk_ctree_last_visible (GtkCTree     *ctree,
 234                                               GtkCTreeNode *node);
 235 static gboolean ctree_is_hot_spot       (GtkCTree      *ctree,
 236                                          GtkCTreeNode  *node,
 237                                          gint           row,
 238                                          gint           x,
 239                                          gint           y);
 240 static void tree_sort                   (GtkCTree      *ctree,
 241                                          GtkCTreeNode  *node,
 242                                          gpointer       data);
 243 static void fake_unselect_all           (GtkCList      *clist,
 244                                          gint           row);
 245 static GList * selection_find           (GtkCList      *clist,
 246                                          gint           row_number,
 247                                          GList         *row_list_element);
 248 static void resync_selection            (GtkCList      *clist,
 249                                          GdkEvent      *event);
 250 static void real_undo_selection         (GtkCList      *clist);
 251 static void select_row_recursive        (GtkCTree      *ctree,
 252                                          GtkCTreeNode  *node,
 253                                          gpointer       data);
 254 static gint real_insert_row             (GtkCList      *clist,
 255                                          gint           row,
 256                                          gchar         *text[]);
 257 static void real_remove_row             (GtkCList      *clist,
 258                                          gint           row);
 259 static void real_sort_list              (GtkCList      *clist);
 260 static void cell_size_request           (GtkCList       *clist,
 261                                          GtkCListRow    *clist_row,
 262                                          gint            column,
 263                                          GtkRequisition *requisition);
 264 static void column_auto_resize          (GtkCList       *clist,
 265                                          GtkCListRow    *clist_row,
 266                                          gint            column,
 267                                          gint            old_width);
 268 static void auto_resize_columns         (GtkCList       *clist);
 269
 270
 271 static gboolean check_drag               (GtkCTree         *ctree,
 272                                           GtkCTreeNode     *drag_source,
 273                                           GtkCTreeNode     *drag_target,
 274                                           GtkCListDragPos   insert_pos);
 275 static void gtk_ctree_drag_begin         (GtkWidget        *widget,
 276                                           GdkDragContext   *context);
 277 static gint gtk_ctree_drag_motion        (GtkWidget        *widget,
 278                                           GdkDragContext   *context,
 279                                           gint              x,
 280                                           gint              y,
 281                                           guint             time);
 282 static void gtk_ctree_drag_data_received (GtkWidget        *widget,
 283                                           GdkDragContext   *context,
 284                                           gint              x,
 285                                           gint              y,
 286                                           GtkSelectionData *selection_data,
 287                                           guint             info,
 288                                           guint32           time);
 289 static void remove_grab                  (GtkCList         *clist);
 290
 291
 292 enum
 293 {
 294   TREE_SELECT_ROW,
 295   TREE_UNSELECT_ROW,
 296   TREE_EXPAND,
 297   TREE_COLLAPSE,
 298   TREE_MOVE,
 299   CHANGE_FOCUS_ROW_EXPANSION,
 300   LAST_SIGNAL
 301 };
 302
 303 static GtkCListClass *parent_class = NULL;
 304 static GtkContainerClass *container_class = NULL;
 305 static guint ctree_signals[LAST_SIGNAL] = {0};
 306
 307
 308 GtkType
 309 gtk_ctree_get_type (void)
 310 {
 311   static GtkType ctree_type = 0;
 312
 313   if (!ctree_type)
 314     {
 315       static const GtkTypeInfo ctree_info =
 316       {
 317         "GtkCTree",
 318         sizeof (GtkCTree),
 319         sizeof (GtkCTreeClass),
 320         (GtkClassInitFunc) gtk_ctree_class_init,
 321         (GtkObjectInitFunc) gtk_ctree_init,
 322         /* reserved_1 */ NULL,
 323         /* reserved_2 */ NULL,
 324         (GtkClassInitFunc) NULL,
 325       };
 326
 327       ctree_type = gtk_type_unique (GTK_TYPE_CLIST, &ctree_info);
 328     }
 329
 330   return ctree_type;
 331 }
 332
 333 static void
 334 gtk_ctree_class_init (GtkCTreeClass *klass)
 335 {
 336   GtkObjectClass *object_class;
 337   GtkWidgetClass *widget_class;
 338   GtkCListClass *clist_class;
 339
 340   object_class = (GtkObjectClass *) klass;
 341   widget_class = (GtkWidgetClass *) klass;
 342   container_class = (GtkContainerClass *) klass;
 343   clist_class = (GtkCListClass *) klass;
 344
 345   parent_class = gtk_type_class (GTK_TYPE_CLIST);
 346   container_class = gtk_type_class (GTK_TYPE_CONTAINER);
 347
 348   gtk_object_add_arg_type ("GtkCTree::n_columns",
 349                            GTK_TYPE_UINT,
 350                            GTK_ARG_READWRITE | GTK_ARG_CONSTRUCT_ONLY,
 351                            ARG_N_COLUMNS);
 352   gtk_object_add_arg_type ("GtkCTree::tree_column",
 353                            GTK_TYPE_UINT,
 354                            GTK_ARG_READWRITE | GTK_ARG_CONSTRUCT_ONLY,
 355                            ARG_TREE_COLUMN);
 356   gtk_object_add_arg_type ("GtkCTree::indent",
 357                            GTK_TYPE_UINT,
 358                            GTK_ARG_READWRITE,
 359                            ARG_INDENT);
 360   gtk_object_add_arg_type ("GtkCTree::spacing",
 361                            GTK_TYPE_UINT,
 362                            GTK_ARG_READWRITE,
 363                            ARG_SPACING);
 364   gtk_object_add_arg_type ("GtkCTree::show_stub",
 365                            GTK_TYPE_BOOL,
 366                            GTK_ARG_READWRITE,
 367                            ARG_SHOW_STUB);
 368   gtk_object_add_arg_type ("GtkCTree::line_style",
 369                            GTK_TYPE_CTREE_LINE_STYLE,
 370                            GTK_ARG_READWRITE,
 371                            ARG_LINE_STYLE);
 372   gtk_object_add_arg_type ("GtkCTree::expander_style",
 373                            GTK_TYPE_CTREE_EXPANDER_STYLE,
 374                            GTK_ARG_READWRITE,
 375                            ARG_EXPANDER_STYLE);
 376   object_class->set_arg = gtk_ctree_set_arg;
 377   object_class->get_arg = gtk_ctree_get_arg;
 378
 379   ctree_signals[TREE_SELECT_ROW] =
 380     gtk_signal_new ("tree_select_row",
 381                     GTK_RUN_FIRST,
 382                     object_class->type,
 383                     GTK_SIGNAL_OFFSET (GtkCTreeClass, tree_select_row),
 384                     gtk_marshal_NONE__POINTER_INT,
 385                     GTK_TYPE_NONE, 2, GTK_TYPE_CTREE_NODE, GTK_TYPE_INT);
 386   ctree_signals[TREE_UNSELECT_ROW] =
 387     gtk_signal_new ("tree_unselect_row",
 388                     GTK_RUN_FIRST,
 389                     object_class->type,
 390                     GTK_SIGNAL_OFFSET (GtkCTreeClass, tree_unselect_row),
 391                     gtk_marshal_NONE__POINTER_INT,
 392                     GTK_TYPE_NONE, 2, GTK_TYPE_CTREE_NODE, GTK_TYPE_INT);
 393   ctree_signals[TREE_EXPAND] =
 394     gtk_signal_new ("tree_expand",
 395                     GTK_RUN_LAST,
 396                     object_class->type,
 397                     GTK_SIGNAL_OFFSET (GtkCTreeClass, tree_expand),
 398                     gtk_marshal_NONE__POINTER,
 399                     GTK_TYPE_NONE, 1, GTK_TYPE_CTREE_NODE);
 400   ctree_signals[TREE_COLLAPSE] =
 401     gtk_signal_new ("tree_collapse",
 402                     GTK_RUN_LAST,
 403                     object_class->type,
 404                     GTK_SIGNAL_OFFSET (GtkCTreeClass, tree_collapse),
 405                     gtk_marshal_NONE__POINTER,
 406                     GTK_TYPE_NONE, 1, GTK_TYPE_POINTER);
 407   ctree_signals[TREE_MOVE] =
 408     gtk_signal_new ("tree_move",
 409                     GTK_RUN_LAST,
 410                     object_class->type,
 411                     GTK_SIGNAL_OFFSET (GtkCTreeClass, tree_move),
 412                     gtk_marshal_NONE__POINTER_POINTER_POINTER,
 413                     GTK_TYPE_NONE, 3, GTK_TYPE_CTREE_NODE,
 414                     GTK_TYPE_CTREE_NODE, GTK_TYPE_CTREE_NODE);
 415   ctree_signals[CHANGE_FOCUS_ROW_EXPANSION] =
 416     gtk_signal_new ("change_focus_row_expansion",
 417                     GTK_RUN_LAST | GTK_RUN_ACTION,
 418                     object_class->type,
 419                     GTK_SIGNAL_OFFSET (GtkCTreeClass,
 420                                        change_focus_row_expansion),
 421                     gtk_marshal_NONE__ENUM,
 422                     GTK_TYPE_NONE, 1, GTK_TYPE_CTREE_EXPANSION_TYPE);
 423   gtk_object_class_add_signals (object_class, ctree_signals, LAST_SIGNAL);
 424
 425   widget_class->realize = gtk_ctree_realize;
 426   widget_class->unrealize = gtk_ctree_unrealize;
 427   widget_class->button_press_event = gtk_ctree_button_press;
 428
 429   widget_class->drag_begin = gtk_ctree_drag_begin;
 430   widget_class->drag_motion = gtk_ctree_drag_motion;
 431   widget_class->drag_data_received = gtk_ctree_drag_data_received;
 432
 433   clist_class->select_row = real_select_row;
 434   clist_class->unselect_row = real_unselect_row;
 435   clist_class->row_move = real_row_move;
 436   clist_class->undo_selection = real_undo_selection;
 437   clist_class->resync_selection = resync_selection;
 438   clist_class->selection_find = selection_find;
 439   clist_class->click_column = NULL;
 440   clist_class->draw_row = draw_row;
 441   clist_class->draw_drag_highlight = draw_drag_highlight;
 442   clist_class->clear = real_clear;
 443   clist_class->select_all = real_select_all;
 444   clist_class->unselect_all = real_unselect_all;
 445   clist_class->fake_unselect_all = fake_unselect_all;
 446   clist_class->insert_row = real_insert_row;
 447   clist_class->remove_row = real_remove_row;
 448   clist_class->sort_list = real_sort_list;
 449   clist_class->set_cell_contents = set_cell_contents;
 450   clist_class->cell_size_request = cell_size_request;
 451
 452   klass->tree_select_row = real_tree_select;
 453   klass->tree_unselect_row = real_tree_unselect;
 454   klass->tree_expand = real_tree_expand;
 455   klass->tree_collapse = real_tree_collapse;
 456   klass->tree_move = real_tree_move;
 457   klass->change_focus_row_expansion = change_focus_row_expansion;
 458
 459   {
 460     GtkBindingSet *binding_set;
 461
 462     binding_set = gtk_binding_set_by_class (klass);
 463     gtk_binding_entry_add_signal (binding_set,
 464                                   '+', GDK_SHIFT_MASK,
 465                                   "change_focus_row_expansion", 1,
 466                                   GTK_TYPE_ENUM, GTK_CTREE_EXPANSION_EXPAND);
 467     gtk_binding_entry_add_signal (binding_set,
 468                                   GDK_KP_Add, 0,
 469                                   "change_focus_row_expansion", 1,
 470                                   GTK_TYPE_ENUM, GTK_CTREE_EXPANSION_EXPAND);
 471     gtk_binding_entry_add_signal (binding_set,
 472                                   GDK_KP_Add, GDK_CONTROL_MASK,
 473                                   "change_focus_row_expansion", 1,
 474                                   GTK_TYPE_ENUM,
 475                                   GTK_CTREE_EXPANSION_EXPAND_RECURSIVE);
 476     gtk_binding_entry_add_signal (binding_set,
 477                                   '-', 0,
 478                                   "change_focus_row_expansion", 1,
 479                                   GTK_TYPE_ENUM, GTK_CTREE_EXPANSION_COLLAPSE);
 480     gtk_binding_entry_add_signal (binding_set,
 481                                   GDK_KP_Subtract, 0,
 482                                   "change_focus_row_expansion", 1,
 483                                   GTK_TYPE_ENUM, GTK_CTREE_EXPANSION_COLLAPSE);
 484     gtk_binding_entry_add_signal (binding_set,
 485                                   GDK_KP_Subtract, GDK_CONTROL_MASK,
 486                                   "change_focus_row_expansion", 1,
 487                                   GTK_TYPE_ENUM,
 488                                   GTK_CTREE_EXPANSION_COLLAPSE_RECURSIVE);
 489     gtk_binding_entry_add_signal (binding_set,
 490                                   '=', 0,
 491                                   "change_focus_row_expansion", 1,
 492                                   GTK_TYPE_ENUM, GTK_CTREE_EXPANSION_TOGGLE);
 493     gtk_binding_entry_add_signal (binding_set,
 494                                   GDK_KP_Multiply, 0,
 495                                   "change_focus_row_expansion", 1,
 496                                   GTK_TYPE_ENUM, GTK_CTREE_EXPANSION_TOGGLE);
 497     gtk_binding_entry_add_signal (binding_set,
 498                                   GDK_KP_Multiply, GDK_CONTROL_MASK,
 499                                   "change_focus_row_expansion", 1,
 500                                   GTK_TYPE_ENUM,
 501                                   GTK_CTREE_EXPANSION_TOGGLE_RECURSIVE);
 502   }
 503
 504 }
 505
 506 static void
 507 gtk_ctree_set_arg (GtkObject      *object,
 508                    GtkArg         *arg,
 509                    guint           arg_id)
 510 {
 511   GtkCTree *ctree;
 512
 513   ctree = GTK_CTREE (object);
 514
 515   switch (arg_id)
 516     {
 517     case ARG_N_COLUMNS: /* construct-only arg, only set when !GTK_CONSTRUCTED */
 518       if (ctree->tree_column)
 519         gtk_ctree_construct (ctree,
 520                              MAX (1, GTK_VALUE_UINT (*arg)),
 521                              ctree->tree_column, NULL);
 522       else
 523         GTK_CLIST (ctree)->columns = MAX (1, GTK_VALUE_UINT (*arg));
 524       break;
 525     case ARG_TREE_COLUMN: /* construct-only arg, only set when !GTK_CONSTRUCTED */
 526       if (GTK_CLIST (ctree)->columns)
 527         gtk_ctree_construct (ctree,
 528                              GTK_CLIST (ctree)->columns,
 529                              MAX (1, GTK_VALUE_UINT (*arg)),
 530                              NULL);
 531       else
 532         ctree->tree_column = MAX (1, GTK_VALUE_UINT (*arg));
 533       break;
 534     case ARG_INDENT:
 535       gtk_ctree_set_indent (ctree, GTK_VALUE_UINT (*arg));
 536       break;
 537     case ARG_SPACING:
 538       gtk_ctree_set_spacing (ctree, GTK_VALUE_UINT (*arg));
 539       break;
 540     case ARG_SHOW_STUB:
 541       gtk_ctree_set_show_stub (ctree, GTK_VALUE_BOOL (*arg));
 542       break;
 543     case ARG_LINE_STYLE:
 544       gtk_ctree_set_line_style (ctree, GTK_VALUE_ENUM (*arg));
 545       break;
 546     case ARG_EXPANDER_STYLE:
 547       gtk_ctree_set_expander_style (ctree, GTK_VALUE_ENUM (*arg));
 548       break;
 549     default:
 550       break;
 551     }
 552 }
 553
 554 static void
 555 gtk_ctree_get_arg (GtkObject      *object,
 556                    GtkArg         *arg,
 557                    guint           arg_id)
 558 {
 559   GtkCTree *ctree;
 560
 561   ctree = GTK_CTREE (object);
 562
 563   switch (arg_id)
 564     {
 565     case ARG_N_COLUMNS:
 566       GTK_VALUE_UINT (*arg) = GTK_CLIST (ctree)->columns;
 567       break;
 568     case ARG_TREE_COLUMN:
 569       GTK_VALUE_UINT (*arg) = ctree->tree_column;
 570       break;
 571     case ARG_INDENT:
 572       GTK_VALUE_UINT (*arg) = ctree->tree_indent;
 573       break;
 574     case ARG_SPACING:
 575       GTK_VALUE_UINT (*arg) = ctree->tree_spacing;
 576       break;
 577     case ARG_SHOW_STUB:
 578       GTK_VALUE_BOOL (*arg) = ctree->show_stub;
 579       break;
 580     case ARG_LINE_STYLE:
 581       GTK_VALUE_ENUM (*arg) = ctree->line_style;
 582       break;
 583     case ARG_EXPANDER_STYLE:
 584       GTK_VALUE_ENUM (*arg) = ctree->expander_style;
 585       break;
 586     default:
 587       arg->type = GTK_TYPE_INVALID;
 588       break;
 589     }
 590 }
 591
 592 static void
 593 gtk_ctree_init (GtkCTree *ctree)
 594 {
 595   GtkCList *clist;
 596
 597   GTK_CLIST_SET_FLAG (ctree, CLIST_DRAW_DRAG_RECT);
 598   GTK_CLIST_SET_FLAG (ctree, CLIST_DRAW_DRAG_LINE);
 599
 600   clist = GTK_CLIST (ctree);
 601
 602   ctree->tree_indent    = 20;
 603   ctree->tree_spacing   = 5;
 604   ctree->tree_column    = 0;
 605   ctree->line_style     = GTK_CTREE_LINES_SOLID;
 606   ctree->expander_style = GTK_CTREE_EXPANDER_SQUARE;
 607   ctree->drag_compare   = NULL;
 608   ctree->show_stub      = TRUE;
 609
 610   clist->button_actions[0] |= GTK_BUTTON_EXPANDS;
 611 }
 612
 613 static void
 614 ctree_attach_styles (GtkCTree     *ctree,
 615                      GtkCTreeNode *node,
 616                      gpointer      data)
 617 {
 618   GtkCList *clist;
 619   gint i;
 620
 621   clist = GTK_CLIST (ctree);
 622
 623   if (GTK_CTREE_ROW (node)->row.style)
 624     GTK_CTREE_ROW (node)->row.style =
 625       gtk_style_attach (GTK_CTREE_ROW (node)->row.style, clist->clist_window);
 626
 627   if (GTK_CTREE_ROW (node)->row.fg_set || GTK_CTREE_ROW (node)->row.bg_set)
 628     {
 629       GdkColormap *colormap;
 630
 631       colormap = gtk_widget_get_colormap (GTK_WIDGET (ctree));
 632       if (GTK_CTREE_ROW (node)->row.fg_set)
 633         gdk_color_alloc (colormap, &(GTK_CTREE_ROW (node)->row.foreground));
 634       if (GTK_CTREE_ROW (node)->row.bg_set)
 635         gdk_color_alloc (colormap, &(GTK_CTREE_ROW (node)->row.background));
 636     }
 637
 638   for (i = 0; i < clist->columns; i++)
 639     if  (GTK_CTREE_ROW (node)->row.cell[i].style)
 640       GTK_CTREE_ROW (node)->row.cell[i].style =
 641         gtk_style_attach (GTK_CTREE_ROW (node)->row.cell[i].style,
 642                           clist->clist_window);
 643 }
 644
 645 static void
 646 ctree_detach_styles (GtkCTree     *ctree,
 647                      GtkCTreeNode *node,
 648                      gpointer      data)
 649 {
 650   GtkCList *clist;
 651   gint i;
 652
 653   clist = GTK_CLIST (ctree);
 654
 655   if (GTK_CTREE_ROW (node)->row.style)
 656     gtk_style_detach (GTK_CTREE_ROW (node)->row.style);
 657   for (i = 0; i < clist->columns; i++)
 658     if  (GTK_CTREE_ROW (node)->row.cell[i].style)
 659       gtk_style_detach (GTK_CTREE_ROW (node)->row.cell[i].style);
 660 }
 661
 662 static void
 663 gtk_ctree_realize (GtkWidget *widget)
 664 {
 665   GtkCTree *ctree;
 666   GtkCList *clist;
 667   GdkGCValues values;
 668   GtkCTreeNode *node;
 669   GtkCTreeNode *child;
 670   gint i;
 671
 672   g_return_if_fail (widget != NULL);
 673   g_return_if_fail (GTK_IS_CTREE (widget));
 674
 675   GTK_WIDGET_CLASS (parent_class)->realize (widget);
 676
 677   ctree = GTK_CTREE (widget);
 678   clist = GTK_CLIST (widget);
 679
 680   node = GTK_CTREE_NODE (clist->row_list);
 681   for (i = 0; i < clist->rows; i++)
 682     {
 683       if (GTK_CTREE_ROW (node)->children && !GTK_CTREE_ROW (node)->expanded)
 684         for (child = GTK_CTREE_ROW (node)->children; child;
 685              child = GTK_CTREE_ROW (child)->sibling)
 686           gtk_ctree_pre_recursive (ctree, child, ctree_attach_styles, NULL);
 687       node = GTK_CTREE_NODE_NEXT (node);
 688     }
 689
 690   values.foreground = widget->style->fg[GTK_STATE_NORMAL];
 691   values.background = widget->style->base[GTK_STATE_NORMAL];
 692   values.subwindow_mode = GDK_INCLUDE_INFERIORS;
 693   values.line_style = GDK_LINE_SOLID;
 694   ctree->lines_gc = gdk_gc_new_with_values (GTK_CLIST(widget)->clist_window,
 695                                             &values,
 696                                             GDK_GC_FOREGROUND |
 697                                             GDK_GC_BACKGROUND |
 698                                             GDK_GC_SUBWINDOW |
 699                                             GDK_GC_LINE_STYLE);
 700
 701   if (ctree->line_style == GTK_CTREE_LINES_DOTTED)
 702     {
 703       gdk_gc_set_line_attributes (ctree->lines_gc, 1,
 704                                   GDK_LINE_ON_OFF_DASH, None, None);
 705       gdk_gc_set_dashes (ctree->lines_gc, 0, "\1\1", 2);
 706     }
 707 }
 708
 709 static void
 710 gtk_ctree_unrealize (GtkWidget *widget)
 711 {
 712   GtkCTree *ctree;
 713   GtkCList *clist;
 714
 715   g_return_if_fail (widget != NULL);
 716   g_return_if_fail (GTK_IS_CTREE (widget));
 717
 718   GTK_WIDGET_CLASS (parent_class)->unrealize (widget);
 719
 720   ctree = GTK_CTREE (widget);
 721   clist = GTK_CLIST (widget);
 722
 723   if (GTK_WIDGET_REALIZED (widget))
 724     {
 725       GtkCTreeNode *node;
 726       GtkCTreeNode *child;
 727       gint i;
 728
 729       node = GTK_CTREE_NODE (clist->row_list);
 730       for (i = 0; i < clist->rows; i++)
 731         {
 732           if (GTK_CTREE_ROW (node)->children &&
 733               !GTK_CTREE_ROW (node)->expanded)
 734             for (child = GTK_CTREE_ROW (node)->children; child;
 735                  child = GTK_CTREE_ROW (child)->sibling)
 736               gtk_ctree_pre_recursive(ctree, child, ctree_detach_styles, NULL);
 737           node = GTK_CTREE_NODE_NEXT (node);
 738         }
 739     }
 740
 741   gdk_gc_destroy (ctree->lines_gc);
 742 }
 743
 744 static gint
 745 gtk_ctree_button_press (GtkWidget      *widget,
 746                         GdkEventButton *event)
 747 {
 748   GtkCTree *ctree;
 749   GtkCList *clist;
 750   gint button_actions;
 751
 752   g_return_val_if_fail (widget != NULL, FALSE);
 753   g_return_val_if_fail (GTK_IS_CTREE (widget), FALSE);
 754   g_return_val_if_fail (event != NULL, FALSE);
 755
 756   ctree = GTK_CTREE (widget);
 757   clist = GTK_CLIST (widget);
 758
 759   button_actions = clist->button_actions[event->button - 1];
 760
 761   if (button_actions == GTK_BUTTON_IGNORED)
 762     return FALSE;
 763
 764   if (event->window == clist->clist_window)
 765     {
 766       GtkCTreeNode *work;
 767       gint x;
 768       gint y;
 769       gint row;
 770       gint column;
 771
 772       x = event->x;
 773       y = event->y;
 774
 775       if (!gtk_clist_get_selection_info (clist, x, y, &row, &column))
 776         return FALSE;
 777
 778       work = GTK_CTREE_NODE (g_list_nth (clist->row_list, row));
 779
 780       if (button_actions & GTK_BUTTON_EXPANDS &&
 781           (GTK_CTREE_ROW (work)->children && !GTK_CTREE_ROW (work)->is_leaf  &&
 782            (event->type == GDK_2BUTTON_PRESS ||
 783             ctree_is_hot_spot (ctree, work, row, x, y))))
 784         {
 785           if (GTK_CTREE_ROW (work)->expanded)
 786             gtk_ctree_collapse (ctree, work);
 787           else
 788             gtk_ctree_expand (ctree, work);
 789
 790           return FALSE;
 791         }
 792     }
 793   return GTK_WIDGET_CLASS (parent_class)->button_press_event (widget, event);
 794 }
 795
 796 static void
 797 draw_drag_highlight (GtkCList        *clist,
 798                      GtkCListRow     *dest_row,
 799                      gint             dest_row_number,
 800                      GtkCListDragPos  drag_pos)
 801 {
 802   GtkCTree *ctree;
 803   GdkPoint points[4];
 804   gint level;
 805   gint i;
 806   gint y = 0;
 807
 808   g_return_if_fail (clist != NULL);
 809   g_return_if_fail (GTK_IS_CTREE (clist));
 810
 811   ctree = GTK_CTREE (clist);
 812
 813   level = ((GtkCTreeRow *)(dest_row))->level;
 814
 815   y = ROW_TOP_YPIXEL (clist, dest_row_number) - 1;
 816
 817   switch (drag_pos)
 818     {
 819     case GTK_CLIST_DRAG_NONE:
 820       break;
 821     case GTK_CLIST_DRAG_AFTER:
 822       y += clist->row_height + 1;
 823     case GTK_CLIST_DRAG_BEFORE:
 824
 825       if (clist->column[ctree->tree_column].visible)
 826         switch (clist->column[ctree->tree_column].justification)
 827           {
 828           case GTK_JUSTIFY_CENTER:
 829           case GTK_JUSTIFY_FILL:
 830           case GTK_JUSTIFY_LEFT:
 831             if (ctree->tree_column > 0)
 832               gdk_draw_line (clist->clist_window, clist->xor_gc,
 833                              COLUMN_LEFT_XPIXEL(clist, 0), y,
 834                              COLUMN_LEFT_XPIXEL(clist, ctree->tree_column - 1)+
 835                              clist->column[ctree->tree_column - 1].area.width,
 836                              y);
 837
 838             gdk_draw_line (clist->clist_window, clist->xor_gc,
 839                            COLUMN_LEFT_XPIXEL(clist, ctree->tree_column) +
 840                            ctree->tree_indent * level -
 841                            (ctree->tree_indent - PM_SIZE) / 2, y,
 842                            GTK_WIDGET (ctree)->allocation.width, y);
 843             break;
 844           case GTK_JUSTIFY_RIGHT:
 845             if (ctree->tree_column < clist->columns - 1)
 846               gdk_draw_line (clist->clist_window, clist->xor_gc,
 847                              COLUMN_LEFT_XPIXEL(clist, ctree->tree_column + 1),
 848                              y,
 849                              COLUMN_LEFT_XPIXEL(clist, clist->columns - 1) +
 850                              clist->column[clist->columns - 1].area.width, y);
 851
 852             gdk_draw_line (clist->clist_window, clist->xor_gc,
 853                            0, y, COLUMN_LEFT_XPIXEL(clist, ctree->tree_column)
 854                            + clist->column[ctree->tree_column].area.width -
 855                            ctree->tree_indent * level +
 856                            (ctree->tree_indent - PM_SIZE) / 2, y);
 857             break;
 858           }
 859       else
 860         gdk_draw_line (clist->clist_window, clist->xor_gc,
 861                        0, y, clist->clist_window_width, y);
 862       break;
 863     case GTK_CLIST_DRAG_INTO:
 864       y = ROW_TOP_YPIXEL (clist, dest_row_number) + clist->row_height;
 865
 866       if (clist->column[ctree->tree_column].visible)
 867         switch (clist->column[ctree->tree_column].justification)
 868           {
 869           case GTK_JUSTIFY_CENTER:
 870           case GTK_JUSTIFY_FILL:
 871           case GTK_JUSTIFY_LEFT:
 872             points[0].x =  COLUMN_LEFT_XPIXEL(clist, ctree->tree_column) +
 873               ctree->tree_indent * level - (ctree->tree_indent - PM_SIZE) / 2;
 874             points[0].y = y;
 875             points[3].x = points[0].x;
 876             points[3].y = y - clist->row_height - 1;
 877             points[1].x = clist->clist_window_width - 1;
 878             points[1].y = points[0].y;
 879             points[2].x = points[1].x;
 880             points[2].y = points[3].y;
 881
 882             for (i = 0; i < 3; i++)
 883               gdk_draw_line (clist->clist_window, clist->xor_gc,
 884                              points[i].x, points[i].y,
 885                              points[i+1].x, points[i+1].y);
 886
 887             if (ctree->tree_column > 0)
 888               {
 889                 points[0].x = COLUMN_LEFT_XPIXEL(clist,
 890                                                  ctree->tree_column - 1) +
 891                   clist->column[ctree->tree_column - 1].area.width ;
 892                 points[0].y = y;
 893                 points[3].x = points[0].x;
 894                 points[3].y = y - clist->row_height - 1;
 895                 points[1].x = 0;
 896                 points[1].y = points[0].y;
 897                 points[2].x = 0;
 898                 points[2].y = points[3].y;
 899
 900                 for (i = 0; i < 3; i++)
 901                   gdk_draw_line (clist->clist_window, clist->xor_gc,
 902                                  points[i].x, points[i].y, points[i+1].x,
 903                                  points[i+1].y);
 904               }
 905             break;
 906           case GTK_JUSTIFY_RIGHT:
 907             points[0].x =  COLUMN_LEFT_XPIXEL(clist, ctree->tree_column) -
 908               ctree->tree_indent * level + (ctree->tree_indent - PM_SIZE) / 2 +
 909               clist->column[ctree->tree_column].area.width;
 910             points[0].y = y;
 911             points[3].x = points[0].x;
 912             points[3].y = y - clist->row_height - 1;
 913             points[1].x = 0;
 914             points[1].y = points[0].y;
 915             points[2].x = 0;
 916             points[2].y = points[3].y;
 917
 918             for (i = 0; i < 3; i++)
 919               gdk_draw_line (clist->clist_window, clist->xor_gc,
 920                              points[i].x, points[i].y,
 921                              points[i+1].x, points[i+1].y);
 922
 923             if (ctree->tree_column < clist->columns - 1)
 924               {
 925                 points[0].x = COLUMN_LEFT_XPIXEL(clist, ctree->tree_column +1);
 926                 points[0].y = y;
 927                 points[3].x = points[0].x;
 928                 points[3].y = y - clist->row_height - 1;
 929                 points[1].x = clist->clist_window_width - 1;
 930                 points[1].y = points[0].y;
 931                 points[2].x = points[1].x;
 932                 points[2].y = points[3].y;
 933
 934                 for (i = 0; i < 3; i++)
 935                   gdk_draw_line (clist->clist_window, clist->xor_gc,
 936                                  points[i].x, points[i].y,
 937                                  points[i+1].x, points[i+1].y);
 938               }
 939             break;
 940           }
 941       else
 942         gdk_draw_rectangle (clist->clist_window, clist->xor_gc, FALSE,
 943                             0, y - clist->row_height,
 944                             clist->clist_window_width - 1, clist->row_height);
 945       break;
 946     }
 947 }
 948
 949 static gint
 950 draw_cell_pixmap (GdkWindow    *window,
 951                   GdkRectangle *clip_rectangle,
 952                   GdkGC        *fg_gc,
 953                   GdkPixmap    *pixmap,
 954                   GdkBitmap    *mask,
 955                   gint          x,
 956                   gint          y,
 957                   gint          width,
 958                   gint          height)
 959 {
 960   gint xsrc = 0;
 961   gint ysrc = 0;
 962
 963   if (mask)
 964     {
 965       gdk_gc_set_clip_mask (fg_gc, mask);
 966       gdk_gc_set_clip_origin (fg_gc, x, y);
 967     }
 968   if (x < clip_rectangle->x)
 969     {
 970       xsrc = clip_rectangle->x - x;
 971       width -= xsrc;
 972       x = clip_rectangle->x;
 973     }
 974   if (x + width > clip_rectangle->x + clip_rectangle->width)
 975     width = clip_rectangle->x + clip_rectangle->width - x;
 976
 977   if (y < clip_rectangle->y)
 978     {
 979       ysrc = clip_rectangle->y - y;
 980       height -= ysrc;
 981       y = clip_rectangle->y;
 982     }
 983   if (y + height > clip_rectangle->y + clip_rectangle->height)
 984     height = clip_rectangle->y + clip_rectangle->height - y;
 985
 986   if (width > 0 && height > 0)
 987     gdk_draw_pixmap (window, fg_gc, pixmap, xsrc, ysrc, x, y, width, height);
 988
 989   gdk_gc_set_clip_origin (fg_gc, 0, 0);
 990
 991   return x + MAX (width, 0);
 992 }
 993
 994 static void
 995 get_cell_style (GtkCList     *clist,
 996                 GtkCListRow  *clist_row,
 997                 gint          state,
 998                 gint          column,
 999                 GtkStyle    **style,
1000                 GdkGC       **fg_gc,
1001                 GdkGC       **bg_gc)
1002 {
1003   gint fg_state;
1004
1005   if ((state == GTK_STATE_NORMAL) &&
1006       (GTK_WIDGET (clist)->state == GTK_STATE_INSENSITIVE))
1007     fg_state = GTK_STATE_INSENSITIVE;
1008   else
1009     fg_state = state;
1010
1011   if (clist_row->cell[column].style)
1012     {
1013       if (style)
1014         *style = clist_row->cell[column].style;
1015       if (fg_gc)
1016         *fg_gc = clist_row->cell[column].style->fg_gc[fg_state];
1017       if (bg_gc) {
1018         if (state == GTK_STATE_SELECTED)
1019           *bg_gc = clist_row->cell[column].style->bg_gc[state];
1020         else
1021           *bg_gc = clist_row->cell[column].style->base_gc[state];
1022       }
1023     }
1024   else if (clist_row->style)
1025     {
1026       if (style)
1027         *style = clist_row->style;
1028       if (fg_gc)
1029         *fg_gc = clist_row->style->fg_gc[fg_state];
1030       if (bg_gc) {
1031         if (state == GTK_STATE_SELECTED)
1032           *bg_gc = clist_row->style->bg_gc[state];
1033         else
1034           *bg_gc = clist_row->style->base_gc[state];
1035       }
1036     }
1037   else
1038     {
1039       if (style)
1040         *style = GTK_WIDGET (clist)->style;
1041       if (fg_gc)
1042         *fg_gc = GTK_WIDGET (clist)->style->fg_gc[fg_state];
1043       if (bg_gc) {
1044         if (state == GTK_STATE_SELECTED)
1045           *bg_gc = GTK_WIDGET (clist)->style->bg_gc[state];
1046         else
1047           *bg_gc = GTK_WIDGET (clist)->style->base_gc[state];
1048       }
1049
1050       if (state != GTK_STATE_SELECTED)
1051         {
1052           if (fg_gc && clist_row->fg_set)
1053             *fg_gc = clist->fg_gc;
1054           if (bg_gc && clist_row->bg_set)
1055             *bg_gc = clist->bg_gc;
1056         }
1057     }
1058 }
1059
1060 static gint
1061 gtk_ctree_draw_expander (GtkCTree     *ctree,
1062                          GtkCTreeRow  *ctree_row,
1063                          GtkStyle     *style,
1064                          GdkRectangle *clip_rectangle,
1065                          gint          x)
1066 {
1067   GtkCList *clist;
1068   GdkPoint points[3];
1069   gint justification_factor;
1070   gint y;
1071
1072  if (ctree->expander_style == GTK_CTREE_EXPANDER_NONE)
1073    return x;
1074
1075   clist = GTK_CLIST (ctree);
1076   if (clist->column[ctree->tree_column].justification == GTK_JUSTIFY_RIGHT)
1077     justification_factor = -1;
1078   else
1079     justification_factor = 1;
1080   y = (clip_rectangle->y + (clip_rectangle->height - PM_SIZE) / 2 -
1081        (clip_rectangle->height + 1) % 2);
1082
1083   if (!ctree_row->children)
1084     {
1085       switch (ctree->expander_style)
1086         {
1087         case GTK_CTREE_EXPANDER_NONE:
1088           return x;
1089         case GTK_CTREE_EXPANDER_TRIANGLE:
1090           return x + justification_factor * (PM_SIZE + 3);
1091         case GTK_CTREE_EXPANDER_SQUARE:
1092         case GTK_CTREE_EXPANDER_CIRCULAR:
1093           return x + justification_factor * (PM_SIZE + 1);
1094         }
1095     }
1096
1097   gdk_gc_set_clip_rectangle (style->fg_gc[GTK_STATE_NORMAL], clip_rectangle);
1098   gdk_gc_set_clip_rectangle (style->base_gc[GTK_STATE_NORMAL], clip_rectangle);
1099
1100   switch (ctree->expander_style)
1101     {
1102     case GTK_CTREE_EXPANDER_NONE:
1103       break;
1104     case GTK_CTREE_EXPANDER_TRIANGLE:
1105       if (ctree_row->expanded)
1106         {
1107           points[0].x = x;
1108           points[0].y = y + (PM_SIZE + 2) / 6;
1109           points[1].x = points[0].x + justification_factor * (PM_SIZE + 2);
1110           points[1].y = points[0].y;
1111           points[2].x = (points[0].x +
1112                          justification_factor * (PM_SIZE + 2) / 2);
1113           points[2].y = y + 2 * (PM_SIZE + 2) / 3;
1114         }
1115       else
1116         {
1117           points[0].x = x + justification_factor * ((PM_SIZE + 2) / 6 + 2);
1118           points[0].y = y - 1;
1119           points[1].x = points[0].x;
1120           points[1].y = points[0].y + (PM_SIZE + 2);
1121           points[2].x = (points[0].x +
1122                          justification_factor * (2 * (PM_SIZE + 2) / 3 - 1));
1123           points[2].y = points[0].y + (PM_SIZE + 2) / 2;
1124         }
1125
1126       gdk_draw_polygon (clist->clist_window, style->base_gc[GTK_STATE_NORMAL],
1127                         TRUE, points, 3);
1128       gdk_draw_polygon (clist->clist_window, style->fg_gc[GTK_STATE_NORMAL],
1129                         FALSE, points, 3);
1130
1131       x += justification_factor * (PM_SIZE + 3);
1132       break;
1133     case GTK_CTREE_EXPANDER_SQUARE:
1134     case GTK_CTREE_EXPANDER_CIRCULAR:
1135       if (justification_factor == -1)
1136         x += justification_factor * (PM_SIZE + 1);
1137
1138       if (ctree->expander_style == GTK_CTREE_EXPANDER_CIRCULAR)
1139         {
1140           gdk_draw_arc (clist->clist_window, style->base_gc[GTK_STATE_NORMAL],
1141                         TRUE, x, y, PM_SIZE, PM_SIZE, 0, 360 * 64);
1142           gdk_draw_arc (clist->clist_window, style->fg_gc[GTK_STATE_NORMAL],
1143                         FALSE, x, y, PM_SIZE, PM_SIZE, 0, 360 * 64);
1144         }
1145       else
1146         {
1147           gdk_draw_rectangle (clist->clist_window,
1148                               style->base_gc[GTK_STATE_NORMAL], TRUE,
1149                               x, y, PM_SIZE, PM_SIZE);
1150           gdk_draw_rectangle (clist->clist_window,
1151                               style->fg_gc[GTK_STATE_NORMAL], FALSE,
1152                               x, y, PM_SIZE, PM_SIZE);
1153         }
1154
1155       gdk_draw_line (clist->clist_window, style->fg_gc[GTK_STATE_NORMAL],
1156                      x + 2, y + PM_SIZE / 2, x + PM_SIZE - 2, y + PM_SIZE / 2);
1157
1158       if (!ctree_row->expanded)
1159         gdk_draw_line (clist->clist_window, style->fg_gc[GTK_STATE_NORMAL],
1160                        x + PM_SIZE / 2, y + 2,
1161                        x + PM_SIZE / 2, y + PM_SIZE - 2);
1162
1163       if (justification_factor == 1)
1164         x += justification_factor * (PM_SIZE + 1);
1165       break;
1166     }
1167
1168   gdk_gc_set_clip_rectangle (style->fg_gc[GTK_STATE_NORMAL], NULL);
1169   gdk_gc_set_clip_rectangle (style->base_gc[GTK_STATE_NORMAL], NULL);
1170
1171   return x;
1172 }
1173
1174
1175 static gint
1176 gtk_ctree_draw_lines (GtkCTree     *ctree,
1177                       GtkCTreeRow  *ctree_row,
1178                       gint          row,
1179                       gint          column,
1180                       gint          state,
1181                       GdkRectangle *clip_rectangle,
1182                       GdkRectangle *cell_rectangle,
1183                       GdkRectangle *crect,
1184                       GdkRectangle *area,
1185                       GtkStyle     *style)
1186 {
1187   GtkCList *clist;
1188   GtkCTreeNode *node;
1189   GtkCTreeNode *parent;
1190   GdkRectangle tree_rectangle;
1191   GdkRectangle tc_rectangle;
1192   GdkGC *bg_gc;
1193   gint offset;
1194   gint offset_x;
1195   gint offset_y;
1196   gint xcenter;
1197   gint ycenter;
1198   gint next_level;
1199   gint column_right;
1200   gint column_left;
1201   gint justify_right;
1202   gint justification_factor;
1203
1204   clist = GTK_CLIST (ctree);
1205   ycenter = clip_rectangle->y + (clip_rectangle->height / 2);
1206   justify_right = (clist->column[column].justification == GTK_JUSTIFY_RIGHT);
1207
1208   if (justify_right)
1209     {
1210       offset = (clip_rectangle->x + clip_rectangle->width - 1 -
1211                 ctree->tree_indent * (ctree_row->level - 1));
1212       justification_factor = -1;
1213     }
1214   else
1215     {
1216       offset = clip_rectangle->x + ctree->tree_indent * (ctree_row->level - 1);
1217       justification_factor = 1;
1218     }
1219
1220   switch (ctree->line_style)
1221     {
1222     case GTK_CTREE_LINES_NONE:
1223       break;
1224     case GTK_CTREE_LINES_TABBED:
1225       xcenter = offset + justification_factor * TAB_SIZE;
1226
1227       column_right = (COLUMN_LEFT_XPIXEL (clist, ctree->tree_column) +
1228                       clist->column[ctree->tree_column].area.width +
1229                       COLUMN_INSET);
1230       column_left = (COLUMN_LEFT_XPIXEL (clist, ctree->tree_column) -
1231                      COLUMN_INSET - CELL_SPACING);
1232
1233       if (area)
1234         {
1235           tree_rectangle.y = crect->y;
1236           tree_rectangle.height = crect->height;
1237
1238           if (justify_right)
1239             {
1240               tree_rectangle.x = xcenter;
1241               tree_rectangle.width = column_right - xcenter;
1242             }
1243           else
1244             {
1245               tree_rectangle.x = column_left;
1246               tree_rectangle.width = xcenter - column_left;
1247             }
1248
1249           if (!gdk_rectangle_intersect (area, &tree_rectangle, &tc_rectangle))
1250             {
1251               offset += justification_factor * 3;
1252               break;
1253             }
1254         }
1255
1256       gdk_gc_set_clip_rectangle (ctree->lines_gc, crect);
1257
1258       next_level = ctree_row->level;
1259
1260       if (!ctree_row->sibling || (ctree_row->children && ctree_row->expanded))
1261         {
1262           node = gtk_ctree_find_node_ptr (ctree, ctree_row);
1263           if (GTK_CTREE_NODE_NEXT (node))
1264             next_level = GTK_CTREE_ROW (GTK_CTREE_NODE_NEXT (node))->level;
1265           else
1266             next_level = 0;
1267         }
1268
1269       if (ctree->tree_indent > 0)
1270         {
1271           node = ctree_row->parent;
1272           while (node)
1273             {
1274               xcenter -= (justification_factor * ctree->tree_indent);
1275
1276               if ((justify_right && xcenter < column_left) ||
1277                   (!justify_right && xcenter > column_right))
1278                 {
1279                   node = GTK_CTREE_ROW (node)->parent;
1280                   continue;
1281                 }
1282
1283               tree_rectangle.y = cell_rectangle->y;
1284               tree_rectangle.height = cell_rectangle->height;
1285               if (justify_right)
1286                 {
1287                   tree_rectangle.x = MAX (xcenter - ctree->tree_indent + 1,
1288                                           column_left);
1289                   tree_rectangle.width = MIN (xcenter - column_left,
1290                                               ctree->tree_indent);
1291                 }
1292               else
1293                 {
1294                   tree_rectangle.x = xcenter;
1295                   tree_rectangle.width = MIN (column_right - xcenter,
1296                                               ctree->tree_indent);
1297                 }
1298
1299               if (!area || gdk_rectangle_intersect (area, &tree_rectangle,
1300                                                     &tc_rectangle))
1301                 {
1302                   get_cell_style (clist, &GTK_CTREE_ROW (node)->row,
1303                                   state, column, NULL, NULL, &bg_gc);
1304
1305                   if (bg_gc == clist->bg_gc)
1306                     gdk_gc_set_foreground
1307                       (clist->bg_gc, &GTK_CTREE_ROW (node)->row.background);
1308
1309                   if (!area)
1310                     gdk_draw_rectangle (clist->clist_window, bg_gc, TRUE,
1311                                         tree_rectangle.x,
1312                                         tree_rectangle.y,
1313                                         tree_rectangle.width,
1314                                         tree_rectangle.height);
1315                   else
1316                     gdk_draw_rectangle (clist->clist_window, bg_gc, TRUE,
1317                                         tc_rectangle.x,
1318                                         tc_rectangle.y,
1319                                         tc_rectangle.width,
1320                                         tc_rectangle.height);
1321                 }
1322               if (next_level > GTK_CTREE_ROW (node)->level)
1323                 gdk_draw_line (clist->clist_window, ctree->lines_gc,
1324                                xcenter, crect->y,
1325                                xcenter, crect->y + crect->height);
1326               else
1327                 {
1328                   gint width;
1329
1330                   offset_x = MIN (ctree->tree_indent, 2 * TAB_SIZE);
1331                   width = offset_x / 2 + offset_x % 2;
1332
1333                   parent = GTK_CTREE_ROW (node)->parent;
1334
1335                   tree_rectangle.y = ycenter;
1336                   tree_rectangle.height = (cell_rectangle->y - ycenter +
1337                                            cell_rectangle->height);
1338
1339                   if (justify_right)
1340                     {
1341                       tree_rectangle.x = MAX(xcenter + 1 - width, column_left);
1342                       tree_rectangle.width = MIN (xcenter + 1 - column_left,
1343                                                   width);
1344                     }
1345                   else
1346                     {
1347                       tree_rectangle.x = xcenter;
1348                       tree_rectangle.width = MIN (column_right - xcenter,
1349                                                   width);
1350                     }
1351
1352                   if (!area ||
1353                       gdk_rectangle_intersect (area, &tree_rectangle,
1354                                                &tc_rectangle))
1355                     {
1356                       if (parent)
1357                         {
1358                           get_cell_style (clist, &GTK_CTREE_ROW (parent)->row,
1359                                           state, column, NULL, NULL, &bg_gc);
1360                           if (bg_gc == clist->bg_gc)
1361                             gdk_gc_set_foreground
1362                               (clist->bg_gc,
1363                                &GTK_CTREE_ROW (parent)->row.background);
1364                         }
1365                       else if (state == GTK_STATE_SELECTED)
1366                         bg_gc = style->base_gc[state];
1367                       else
1368                         bg_gc = GTK_WIDGET (clist)->style->base_gc[state];
1369
1370                       if (!area)
1371                         gdk_draw_rectangle (clist->clist_window, bg_gc, TRUE,
1372                                             tree_rectangle.x,
1373                                             tree_rectangle.y,
1374                                             tree_rectangle.width,
1375                                             tree_rectangle.height);
1376                       else
1377                         gdk_draw_rectangle (clist->clist_window,
1378                                             bg_gc, TRUE,
1379                                             tc_rectangle.x,
1380                                             tc_rectangle.y,
1381                                             tc_rectangle.width,
1382                                             tc_rectangle.height);
1383                     }
1384
1385                   get_cell_style (clist, &GTK_CTREE_ROW (node)->row,
1386                                   state, column, NULL, NULL, &bg_gc);
1387                   if (bg_gc == clist->bg_gc)
1388                     gdk_gc_set_foreground
1389                       (clist->bg_gc, &GTK_CTREE_ROW (node)->row.background);
1390
1391                   gdk_gc_set_clip_rectangle (bg_gc, crect);
1392                   gdk_draw_arc (clist->clist_window, bg_gc, TRUE,
1393                                 xcenter - (justify_right * offset_x),
1394                                 cell_rectangle->y,
1395                                 offset_x, clist->row_height,
1396                                 (180 + (justify_right * 90)) * 64, 90 * 64);
1397                   gdk_gc_set_clip_rectangle (bg_gc, NULL);
1398
1399                   gdk_draw_line (clist->clist_window, ctree->lines_gc,
1400                                  xcenter, cell_rectangle->y, xcenter, ycenter);
1401
1402                   if (justify_right)
1403                     gdk_draw_arc (clist->clist_window, ctree->lines_gc, FALSE,
1404                                   xcenter - offset_x, cell_rectangle->y,
1405                                   offset_x, clist->row_height,
1406                                   270 * 64, 90 * 64);
1407                   else
1408                     gdk_draw_arc (clist->clist_window, ctree->lines_gc, FALSE,
1409                                   xcenter, cell_rectangle->y,
1410                                   offset_x, clist->row_height,
1411                                   180 * 64, 90 * 64);
1412                 }
1413               node = GTK_CTREE_ROW (node)->parent;
1414             }
1415         }
1416
1417       if (state != GTK_STATE_SELECTED)
1418         {
1419           tree_rectangle.y = clip_rectangle->y;
1420           tree_rectangle.height = clip_rectangle->height;
1421           tree_rectangle.width = COLUMN_INSET + CELL_SPACING +
1422             MIN (clist->column[ctree->tree_column].area.width + COLUMN_INSET,
1423                  TAB_SIZE);
1424
1425           if (justify_right)
1426             tree_rectangle.x = MAX (xcenter + 1, column_left);
1427           else
1428             tree_rectangle.x = column_left;
1429
1430           if (!area)
1431             gdk_draw_rectangle (clist->clist_window,
1432                                 GTK_WIDGET
1433                                 (ctree)->style->base_gc[GTK_STATE_NORMAL],
1434                                 TRUE,
1435                                 tree_rectangle.x,
1436                                 tree_rectangle.y,
1437                                 tree_rectangle.width,
1438                                 tree_rectangle.height);
1439           else if (gdk_rectangle_intersect (area, &tree_rectangle,
1440                                             &tc_rectangle))
1441             gdk_draw_rectangle (clist->clist_window,
1442                                 GTK_WIDGET
1443                                 (ctree)->style->base_gc[GTK_STATE_NORMAL],
1444                                 TRUE,
1445                                 tc_rectangle.x,
1446                                 tc_rectangle.y,
1447                                 tc_rectangle.width,
1448                                 tc_rectangle.height);
1449         }
1450
1451       xcenter = offset + (justification_factor * ctree->tree_indent / 2);
1452
1453       get_cell_style (clist, &ctree_row->row, state, column, NULL, NULL,
1454                       &bg_gc);
1455       if (bg_gc == clist->bg_gc)
1456         gdk_gc_set_foreground (clist->bg_gc, &ctree_row->row.background);
1457
1458       gdk_gc_set_clip_rectangle (bg_gc, crect);
1459       if (ctree_row->is_leaf)
1460         {
1461           GdkPoint points[6];
1462
1463           points[0].x = offset + justification_factor * TAB_SIZE;
1464           points[0].y = cell_rectangle->y;
1465
1466           points[1].x = points[0].x - justification_factor * 4;
1467           points[1].y = points[0].y;
1468
1469           points[2].x = points[1].x - justification_factor * 2;
1470           points[2].y = points[1].y + 3;
1471
1472           points[3].x = points[2].x;
1473           points[3].y = points[2].y + clist->row_height - 5;
1474
1475           points[4].x = points[3].x + justification_factor * 2;
1476           points[4].y = points[3].y + 3;
1477
1478           points[5].x = points[4].x + justification_factor * 4;
1479           points[5].y = points[4].y;
1480
1481           gdk_draw_polygon (clist->clist_window, bg_gc, TRUE, points, 6);
1482           gdk_draw_lines (clist->clist_window, ctree->lines_gc, points, 6);
1483         }
1484       else
1485         {
1486           gdk_draw_arc (clist->clist_window, bg_gc, TRUE,
1487                         offset - (justify_right * 2 * TAB_SIZE),
1488                         cell_rectangle->y,
1489                         2 * TAB_SIZE, clist->row_height,
1490                         (90 + (180 * justify_right)) * 64, 180 * 64);
1491           gdk_draw_arc (clist->clist_window, ctree->lines_gc, FALSE,
1492                         offset - (justify_right * 2 * TAB_SIZE),
1493                         cell_rectangle->y,
1494                         2 * TAB_SIZE, clist->row_height,
1495                         (90 + (180 * justify_right)) * 64, 180 * 64);
1496         }
1497       gdk_gc_set_clip_rectangle (bg_gc, NULL);
1498       gdk_gc_set_clip_rectangle (ctree->lines_gc, NULL);
1499
1500       offset += justification_factor * 3;
1501       break;
1502     default:
1503       xcenter = offset + justification_factor * PM_SIZE / 2;
1504
1505       if (area)
1506         {
1507           tree_rectangle.y = crect->y;
1508           tree_rectangle.height = crect->height;
1509
1510           if (justify_right)
1511             {
1512               tree_rectangle.x = xcenter - PM_SIZE / 2 - 2;
1513               tree_rectangle.width = (clip_rectangle->x +
1514                                       clip_rectangle->width -tree_rectangle.x);
1515             }
1516           else
1517             {
1518               tree_rectangle.x = clip_rectangle->x + PM_SIZE / 2;
1519               tree_rectangle.width = (xcenter + PM_SIZE / 2 + 2 -
1520                                       clip_rectangle->x);
1521             }
1522
1523           if (!gdk_rectangle_intersect (area, &tree_rectangle, &tc_rectangle))
1524             break;
1525         }
1526
1527       offset_x = 1;
1528       offset_y = 0;
1529       if (ctree->line_style == GTK_CTREE_LINES_DOTTED)
1530         {
1531           offset_x += abs((clip_rectangle->x + clist->hoffset) % 2);
1532           offset_y  = abs((cell_rectangle->y + clist->voffset) % 2);
1533         }
1534
1535       clip_rectangle->y--;
1536       clip_rectangle->height++;
1537       gdk_gc_set_clip_rectangle (ctree->lines_gc, clip_rectangle);
1538       gdk_draw_line (clist->clist_window, ctree->lines_gc,
1539                      xcenter,
1540                      (ctree->show_stub || clist->row_list->data != ctree_row) ?
1541                      cell_rectangle->y + offset_y : ycenter,
1542                      xcenter,
1543                      (ctree_row->sibling) ? crect->y +crect->height : ycenter);
1544
1545       gdk_draw_line (clist->clist_window, ctree->lines_gc,
1546                      xcenter + (justification_factor * offset_x), ycenter,
1547                      xcenter + (justification_factor * (PM_SIZE / 2 + 2)),
1548                      ycenter);
1549
1550       node = ctree_row->parent;
1551       while (node)
1552         {
1553           xcenter -= (justification_factor * ctree->tree_indent);
1554
1555           if (GTK_CTREE_ROW (node)->sibling)
1556             gdk_draw_line (clist->clist_window, ctree->lines_gc,
1557                            xcenter, cell_rectangle->y + offset_y,
1558                            xcenter, crect->y + crect->height);
1559           node = GTK_CTREE_ROW (node)->parent;
1560         }
1561       gdk_gc_set_clip_rectangle (ctree->lines_gc, NULL);
1562       clip_rectangle->y++;
1563       clip_rectangle->height--;
1564       break;
1565     }
1566   return offset;
1567 }
1568
1569 static void
1570 draw_row (GtkCList     *clist,
1571           GdkRectangle *area,
1572           gint          row,
1573           GtkCListRow  *clist_row)
1574 {
1575   GtkWidget *widget;
1576   GtkCTree  *ctree;
1577   GdkRectangle *rect;
1578   GdkRectangle *crect;
1579   GdkRectangle row_rectangle;
1580   GdkRectangle cell_rectangle;
1581   GdkRectangle clip_rectangle;
1582   GdkRectangle intersect_rectangle;
1583   gint column_left = 0;
1584   gint column_right = 0;
1585   gint offset = 0;
1586   gint state;
1587   gint i;
1588
1589   g_return_if_fail (clist != NULL);
1590
1591   /* bail now if we arn't drawable yet */
1592   if (!GTK_WIDGET_DRAWABLE (clist) || row < 0 || row >= clist->rows)
1593     return;
1594
1595   widget = GTK_WIDGET (clist);
1596   ctree  = GTK_CTREE  (clist);
1597
1598   /* if the function is passed the pointer to the row instead of null,
1599    * it avoids this expensive lookup */
1600   if (!clist_row)
1601     clist_row = (g_list_nth (clist->row_list, row))->data;
1602
1603   /* rectangle of the entire row */
1604   row_rectangle.x = 0;
1605   row_rectangle.y = ROW_TOP_YPIXEL (clist, row);
1606   row_rectangle.width = clist->clist_window_width;
1607   row_rectangle.height = clist->row_height;
1608
1609   /* rectangle of the cell spacing above the row */
1610   cell_rectangle.x = 0;
1611   cell_rectangle.y = row_rectangle.y - CELL_SPACING;
1612   cell_rectangle.width = row_rectangle.width;
1613   cell_rectangle.height = CELL_SPACING;
1614
1615   /* rectangle used to clip drawing operations, it's y and height
1616    * positions only need to be set once, so we set them once here.
1617    * the x and width are set withing the drawing loop below once per
1618    * column */
1619   clip_rectangle.y = row_rectangle.y;
1620   clip_rectangle.height = row_rectangle.height;
1621
1622   if (clist_row->state == GTK_STATE_NORMAL)
1623     {
1624       if (clist_row->fg_set)
1625         gdk_gc_set_foreground (clist->fg_gc, &clist_row->foreground);
1626       if (clist_row->bg_set)
1627         gdk_gc_set_foreground (clist->bg_gc, &clist_row->background);
1628     }
1629
1630   state = clist_row->state;
1631
1632   gdk_gc_set_foreground (ctree->lines_gc,
1633                          &widget->style->fg[clist_row->state]);
1634
1635   /* draw the cell borders */
1636   if (area)
1637     {
1638       rect = &intersect_rectangle;
1639       crect = &intersect_rectangle;
1640
1641       if (gdk_rectangle_intersect (area, &cell_rectangle, crect))
1642         gdk_draw_rectangle (clist->clist_window,
1643                             widget->style->base_gc[GTK_STATE_ACTIVE], TRUE,
1644                             crect->x, crect->y, crect->width, crect->height);
1645     }
1646   else
1647     {
1648       rect = &clip_rectangle;
1649       crect = &cell_rectangle;
1650
1651       gdk_draw_rectangle (clist->clist_window,
1652                           widget->style->base_gc[GTK_STATE_ACTIVE], TRUE,
1653                           crect->x, crect->y, crect->width, crect->height);
1654     }
1655
1656   /* horizontal black lines */
1657   if (ctree->line_style == GTK_CTREE_LINES_TABBED)
1658     {
1659
1660       column_right = (COLUMN_LEFT_XPIXEL (clist, ctree->tree_column) +
1661                       clist->column[ctree->tree_column].area.width +
1662                       COLUMN_INSET);
1663       column_left = (COLUMN_LEFT_XPIXEL (clist, ctree->tree_column) -
1664                      COLUMN_INSET - (ctree->tree_column != 0) * CELL_SPACING);
1665
1666       switch (clist->column[ctree->tree_column].justification)
1667         {
1668         case GTK_JUSTIFY_CENTER:
1669         case GTK_JUSTIFY_FILL:
1670         case GTK_JUSTIFY_LEFT:
1671           offset = (column_left + ctree->tree_indent *
1672                     (((GtkCTreeRow *)clist_row)->level - 1));
1673
1674           gdk_draw_line (clist->clist_window, ctree->lines_gc,
1675                          MIN (offset + TAB_SIZE, column_right),
1676                          cell_rectangle.y,
1677                          clist->clist_window_width, cell_rectangle.y);
1678           break;
1679         case GTK_JUSTIFY_RIGHT:
1680           offset = (column_right - 1 - ctree->tree_indent *
1681                     (((GtkCTreeRow *)clist_row)->level - 1));
1682
1683           gdk_draw_line (clist->clist_window, ctree->lines_gc,
1684                          -1, cell_rectangle.y,
1685                          MAX (offset - TAB_SIZE, column_left),
1686                          cell_rectangle.y);
1687           break;
1688         }
1689     }
1690
1691   /* the last row has to clear it's bottom cell spacing too */
1692   if (clist_row == clist->row_list_end->data)
1693     {
1694       cell_rectangle.y += clist->row_height + CELL_SPACING;
1695
1696       if (!area || gdk_rectangle_intersect (area, &cell_rectangle, crect))
1697         {
1698           gdk_draw_rectangle (clist->clist_window,
1699                               widget->style->base_gc[GTK_STATE_ACTIVE], TRUE,
1700                               crect->x, crect->y, crect->width, crect->height);
1701
1702           /* horizontal black lines */
1703           if (ctree->line_style == GTK_CTREE_LINES_TABBED)
1704             {
1705               switch (clist->column[ctree->tree_column].justification)
1706                 {
1707                 case GTK_JUSTIFY_CENTER:
1708                 case GTK_JUSTIFY_FILL:
1709                 case GTK_JUSTIFY_LEFT:
1710                   gdk_draw_line (clist->clist_window, ctree->lines_gc,
1711                                  MIN (column_left + TAB_SIZE + COLUMN_INSET +
1712                                       (((GtkCTreeRow *)clist_row)->level > 1) *
1713                                       MIN (ctree->tree_indent / 2, TAB_SIZE),
1714                                       column_right),
1715                                  cell_rectangle.y,
1716                                  clist->clist_window_width, cell_rectangle.y);
1717                   break;
1718                 case GTK_JUSTIFY_RIGHT:
1719                   gdk_draw_line (clist->clist_window, ctree->lines_gc,
1720                                  -1, cell_rectangle.y,
1721                                  MAX (column_right - TAB_SIZE - 1 -
1722                                       COLUMN_INSET -
1723                                       (((GtkCTreeRow *)clist_row)->level > 1) *
1724                                       MIN (ctree->tree_indent / 2, TAB_SIZE),
1725                                       column_left - 1), cell_rectangle.y);
1726                   break;
1727                 }
1728             }
1729         }
1730     }
1731
1732   /* iterate and draw all the columns (row cells) and draw their contents */
1733   for (i = 0; i < clist->columns; i++)
1734     {
1735       GtkStyle *style;
1736       GdkGC *fg_gc;
1737       GdkGC *bg_gc;
1738
1739       gint width;
1740       gint height;
1741       gint pixmap_width;
1742       gint string_width;
1743       gint old_offset;
1744       gint row_center_offset;
1745
1746       if (!clist->column[i].visible)
1747         continue;
1748
1749       get_cell_style (clist, clist_row, state, i, &style, &fg_gc, &bg_gc);
1750
1751       /* calculate clipping region */
1752       clip_rectangle.x = clist->column[i].area.x + clist->hoffset;
1753       clip_rectangle.width = clist->column[i].area.width;
1754
1755       cell_rectangle.x = clip_rectangle.x - COLUMN_INSET - CELL_SPACING;
1756       cell_rectangle.width = (clip_rectangle.width + 2 * COLUMN_INSET +
1757                               (1 + (i + 1 == clist->columns)) * CELL_SPACING);
1758       cell_rectangle.y = clip_rectangle.y;
1759       cell_rectangle.height = clip_rectangle.height;
1760
1761       string_width = 0;
1762       pixmap_width = 0;
1763
1764       if (area && !gdk_rectangle_intersect (area, &cell_rectangle,
1765                                             &intersect_rectangle))
1766         {
1767           if (i != ctree->tree_column)
1768             continue;
1769         }
1770       else
1771         {
1772           gdk_draw_rectangle (clist->clist_window, bg_gc, TRUE,
1773                               crect->x, crect->y, crect->width, crect->height);
1774
1775           /* calculate real width for column justification */
1776           switch (clist_row->cell[i].type)
1777             {
1778             case GTK_CELL_TEXT:
1779               width = gdk_string_width
1780                 (style->font, GTK_CELL_TEXT (clist_row->cell[i])->text);
1781               break;
1782             case GTK_CELL_PIXMAP:
1783               gdk_window_get_size
1784                 (GTK_CELL_PIXMAP (clist_row->cell[i])->pixmap, &pixmap_width,
1785                  &height);
1786               width = pixmap_width;
1787               break;
1788             case GTK_CELL_PIXTEXT:
1789               if (GTK_CELL_PIXTEXT (clist_row->cell[i])->pixmap)
1790                 gdk_window_get_size
1791                   (GTK_CELL_PIXTEXT (clist_row->cell[i])->pixmap,
1792                    &pixmap_width, &height);
1793
1794               width = pixmap_width;
1795
1796               if (GTK_CELL_PIXTEXT (clist_row->cell[i])->text)
1797                 {
1798                   string_width = gdk_string_width
1799                     (style->font, GTK_CELL_PIXTEXT (clist_row->cell[i])->text);
1800                   width += string_width;
1801                 }
1802
1803               if (GTK_CELL_PIXTEXT (clist_row->cell[i])->text &&
1804                   GTK_CELL_PIXTEXT (clist_row->cell[i])->pixmap)
1805                 width +=  GTK_CELL_PIXTEXT (clist_row->cell[i])->spacing;
1806
1807               if (i == ctree->tree_column)
1808                 width += (ctree->tree_indent *
1809                           ((GtkCTreeRow *)clist_row)->level);
1810               break;
1811             default:
1812               continue;
1813               break;
1814             }
1815
1816           switch (clist->column[i].justification)
1817             {
1818             case GTK_JUSTIFY_LEFT:
1819               offset = clip_rectangle.x + clist_row->cell[i].horizontal;
1820               break;
1821             case GTK_JUSTIFY_RIGHT:
1822               offset = (clip_rectangle.x + clist_row->cell[i].horizontal +
1823                         clip_rectangle.width - width);
1824               break;
1825             case GTK_JUSTIFY_CENTER:
1826             case GTK_JUSTIFY_FILL:
1827               offset = (clip_rectangle.x + clist_row->cell[i].horizontal +
1828                         (clip_rectangle.width / 2) - (width / 2));
1829               break;
1830             };
1831
1832           if (i != ctree->tree_column)
1833             {
1834               offset += clist_row->cell[i].horizontal;
1835               switch (clist_row->cell[i].type)
1836                 {
1837                 case GTK_CELL_PIXMAP:
1838                   draw_cell_pixmap
1839                     (clist->clist_window, &clip_rectangle, fg_gc,
1840                      GTK_CELL_PIXMAP (clist_row->cell[i])->pixmap,
1841                      GTK_CELL_PIXMAP (clist_row->cell[i])->mask,
1842                      offset,
1843                      clip_rectangle.y + clist_row->cell[i].vertical +
1844                      (clip_rectangle.height - height) / 2,
1845                      pixmap_width, height);
1846                   break;
1847                 case GTK_CELL_PIXTEXT:
1848                   offset = draw_cell_pixmap
1849                     (clist->clist_window, &clip_rectangle, fg_gc,
1850                      GTK_CELL_PIXTEXT (clist_row->cell[i])->pixmap,
1851                      GTK_CELL_PIXTEXT (clist_row->cell[i])->mask,
1852                      offset,
1853                      clip_rectangle.y + clist_row->cell[i].vertical +
1854                      (clip_rectangle.height - height) / 2,
1855                      pixmap_width, height);
1856                   offset += GTK_CELL_PIXTEXT (clist_row->cell[i])->spacing;
1857                 case GTK_CELL_TEXT:
1858                   if (style != GTK_WIDGET (clist)->style)
1859                     row_center_offset = (((clist->row_height -
1860                                            style->font->ascent -
1861                                            style->font->descent - 1) / 2) +
1862                                          1.5 + style->font->ascent);
1863                   else
1864                     row_center_offset = clist->row_center_offset;
1865
1866                   gdk_gc_set_clip_rectangle (fg_gc, &clip_rectangle);
1867                   gdk_draw_string
1868                     (clist->clist_window, style->font, fg_gc,
1869                      offset,
1870                      row_rectangle.y + row_center_offset +
1871                      clist_row->cell[i].vertical,
1872                      (clist_row->cell[i].type == GTK_CELL_PIXTEXT) ?
1873                      GTK_CELL_PIXTEXT (clist_row->cell[i])->text :
1874                      GTK_CELL_TEXT (clist_row->cell[i])->text);
1875                   gdk_gc_set_clip_rectangle (fg_gc, NULL);
1876                   break;
1877                 default:
1878                   break;
1879                 }
1880               continue;
1881             }
1882         }
1883
1884       if (bg_gc == clist->bg_gc)
1885         gdk_gc_set_background (ctree->lines_gc, &clist_row->background);
1886
1887       /* draw ctree->tree_column */
1888       cell_rectangle.y -= CELL_SPACING;
1889       cell_rectangle.height += CELL_SPACING;
1890
1891       if (area && !gdk_rectangle_intersect (area, &cell_rectangle,
1892                                             &intersect_rectangle))
1893         continue;
1894
1895       /* draw lines */
1896       offset = gtk_ctree_draw_lines (ctree, (GtkCTreeRow *)clist_row, row, i,
1897                                      state, &clip_rectangle, &cell_rectangle,
1898                                      crect, area, style);
1899
1900       /* draw expander */
1901       offset = gtk_ctree_draw_expander (ctree, (GtkCTreeRow *)clist_row,
1902                                         style, &clip_rectangle, offset);
1903
1904       if (clist->column[i].justification == GTK_JUSTIFY_RIGHT)
1905         offset -= ctree->tree_spacing;
1906       else
1907         offset += ctree->tree_spacing;
1908
1909       if (clist->column[i].justification == GTK_JUSTIFY_RIGHT)
1910         offset -= (pixmap_width + clist_row->cell[i].horizontal);
1911       else
1912         offset += clist_row->cell[i].horizontal;
1913
1914       old_offset = offset;
1915       offset = draw_cell_pixmap (clist->clist_window, &clip_rectangle, fg_gc,
1916                                  GTK_CELL_PIXTEXT (clist_row->cell[i])->pixmap,
1917                                  GTK_CELL_PIXTEXT (clist_row->cell[i])->mask,
1918                                  offset,
1919                                  clip_rectangle.y + clist_row->cell[i].vertical
1920                                  + (clip_rectangle.height - height) / 2,
1921                                  pixmap_width, height);
1922
1923       if (string_width)
1924         {
1925           if (clist->column[i].justification == GTK_JUSTIFY_RIGHT)
1926             {
1927               offset = (old_offset - string_width);
1928               if (GTK_CELL_PIXTEXT (clist_row->cell[i])->pixmap)
1929                 offset -= GTK_CELL_PIXTEXT (clist_row->cell[i])->spacing;
1930             }
1931           else
1932             {
1933               if (GTK_CELL_PIXTEXT (clist_row->cell[i])->pixmap)
1934                 offset += GTK_CELL_PIXTEXT (clist_row->cell[i])->spacing;
1935             }
1936
1937           if (style != GTK_WIDGET (clist)->style)
1938             row_center_offset = (((clist->row_height - style->font->ascent -
1939                                    style->font->descent - 1) / 2) +
1940                                  1.5 + style->font->ascent);
1941           else
1942             row_center_offset = clist->row_center_offset;
1943
1944           gdk_gc_set_clip_rectangle (fg_gc, &clip_rectangle);
1945           gdk_draw_string (clist->clist_window, style->font, fg_gc, offset,
1946                            row_rectangle.y + row_center_offset +
1947                            clist_row->cell[i].vertical,
1948                            GTK_CELL_PIXTEXT (clist_row->cell[i])->text);
1949         }
1950       gdk_gc_set_clip_rectangle (fg_gc, NULL);
1951     }
1952
1953   /* draw focus rectangle */
1954   if (clist->focus_row == row && GTK_WIDGET_HAS_FOCUS (widget))
1955     {
1956       if (!area)
1957         gdk_draw_rectangle (clist->clist_window, clist->xor_gc, FALSE,
1958                             row_rectangle.x, row_rectangle.y,
1959                             row_rectangle.width - 1, row_rectangle.height - 1);
1960       else if (gdk_rectangle_intersect (area, &row_rectangle,
1961                                         &intersect_rectangle))
1962         {
1963           gdk_gc_set_clip_rectangle (clist->xor_gc, &intersect_rectangle);
1964           gdk_draw_rectangle (clist->clist_window, clist->xor_gc, FALSE,
1965                               row_rectangle.x, row_rectangle.y,
1966                               row_rectangle.width - 1,
1967                               row_rectangle.height - 1);
1968           gdk_gc_set_clip_rectangle (clist->xor_gc, NULL);
1969         }
1970     }
1971 }
1972
1973 static void
1974 tree_draw_node (GtkCTree     *ctree,
1975                 GtkCTreeNode *node)
1976 {
1977   GtkCList *clist;
1978
1979   clist = GTK_CLIST (ctree);
1980
1981   if (CLIST_UNFROZEN (clist) && gtk_ctree_is_viewable (ctree, node))
1982     {
1983       GtkCTreeNode *work;
1984       gint num = 0;
1985
1986       work = GTK_CTREE_NODE (clist->row_list);
1987       while (work && work != node)
1988         {
1989           work = GTK_CTREE_NODE_NEXT (work);
1990           num++;
1991         }
1992       if (work && gtk_clist_row_is_visible (clist, num) != GTK_VISIBILITY_NONE)
1993         GTK_CLIST_CLASS_FW (clist)->draw_row
1994           (clist, NULL, num, GTK_CLIST_ROW ((GList *) node));
1995     }
1996 }
1997
1998 static GtkCTreeNode *
1999 gtk_ctree_last_visible (GtkCTree     *ctree,
2000                         GtkCTreeNode *node)
2001 {
2002   GtkCTreeNode *work;
2003
2004   if (!node)
2005     return NULL;
2006
2007   work = GTK_CTREE_ROW (node)->children;
2008
2009   if (!work || !GTK_CTREE_ROW (node)->expanded)
2010     return node;
2011
2012   while (GTK_CTREE_ROW (work)->sibling)
2013     work = GTK_CTREE_ROW (work)->sibling;
2014
2015   return gtk_ctree_last_visible (ctree, work);
2016 }
2017
2018 static void
2019 gtk_ctree_link (GtkCTree     *ctree,
2020                 GtkCTreeNode *node,
2021                 GtkCTreeNode *parent,
2022                 GtkCTreeNode *sibling,
2023                 gboolean      update_focus_row)
2024 {
2025   GtkCList *clist;
2026   GList *list_end;
2027   GList *list;
2028   GList *work;
2029   gboolean visible = FALSE;
2030   gint rows = 0;
2031
2032   if (sibling)
2033     g_return_if_fail (GTK_CTREE_ROW (sibling)->parent == parent);
2034   g_return_if_fail (node != NULL);
2035   g_return_if_fail (node != sibling);
2036   g_return_if_fail (node != parent);
2037
2038   clist = GTK_CLIST (ctree);
2039
2040   if (update_focus_row && clist->selection_mode == GTK_SELECTION_EXTENDED)
2041     {
2042       if (clist->anchor != -1)
2043         GTK_CLIST_CLASS_FW (clist)->resync_selection (clist, NULL);
2044
2045       g_list_free (clist->undo_selection);
2046       g_list_free (clist->undo_unselection);
2047       clist->undo_selection = NULL;
2048       clist->undo_unselection = NULL;
2049     }
2050
2051   for (rows = 1, list_end = (GList *)node; list_end->next;
2052        list_end = list_end->next)
2053     rows++;
2054
2055   GTK_CTREE_ROW (node)->parent = parent;
2056   GTK_CTREE_ROW (node)->sibling = sibling;
2057
2058   if (!parent || (parent && (gtk_ctree_is_viewable (ctree, parent) &&
2059                              GTK_CTREE_ROW (parent)->expanded)))
2060     {
2061       visible = TRUE;
2062       clist->rows += rows;
2063     }
2064
2065   if (parent)
2066     work = (GList *)(GTK_CTREE_ROW (parent)->children);
2067   else
2068     work = clist->row_list;
2069
2070   if (sibling)
2071     {
2072       if (work != (GList *)sibling)
2073         {
2074           while (GTK_CTREE_ROW (work)->sibling != sibling)
2075             work = (GList *)(GTK_CTREE_ROW (work)->sibling);
2076           GTK_CTREE_ROW (work)->sibling = node;
2077         }
2078
2079       if (sibling == GTK_CTREE_NODE (clist->row_list))
2080         clist->row_list = (GList *) node;
2081       if (GTK_CTREE_NODE_PREV (sibling) &&
2082           GTK_CTREE_NODE_NEXT (GTK_CTREE_NODE_PREV (sibling)) == sibling)
2083         {
2084           list = (GList *)GTK_CTREE_NODE_PREV (sibling);
2085           list->next = (GList *)node;
2086         }
2087
2088       list = (GList *)node;
2089       list->prev = (GList *)GTK_CTREE_NODE_PREV (sibling);
2090       list_end->next = (GList *)sibling;
2091       list = (GList *)sibling;
2092       list->prev = list_end;
2093       if (parent && GTK_CTREE_ROW (parent)->children == sibling)
2094         GTK_CTREE_ROW (parent)->children = node;
2095     }
2096   else
2097     {
2098       if (work)
2099         {
2100           /* find sibling */
2101           while (GTK_CTREE_ROW (work)->sibling)
2102             work = (GList *)(GTK_CTREE_ROW (work)->sibling);
2103           GTK_CTREE_ROW (work)->sibling = node;
2104
2105           /* find last visible child of sibling */
2106           work = (GList *) gtk_ctree_last_visible (ctree,
2107                                                    GTK_CTREE_NODE (work));
2108
2109           list_end->next = work->next;
2110           if (work->next)
2111             list = work->next->prev = list_end;
2112           work->next = (GList *)node;
2113           list = (GList *)node;
2114           list->prev = work;
2115         }
2116       else
2117         {
2118           if (parent)
2119             {
2120               GTK_CTREE_ROW (parent)->children = node;
2121               list = (GList *)node;
2122               list->prev = (GList *)parent;
2123               if (GTK_CTREE_ROW (parent)->expanded)
2124                 {
2125                   list_end->next = (GList *)GTK_CTREE_NODE_NEXT (parent);
2126                   if (GTK_CTREE_NODE_NEXT(parent))
2127                     {
2128                       list = (GList *)GTK_CTREE_NODE_NEXT (parent);
2129                       list->prev = list_end;
2130                     }
2131                   list = (GList *)parent;
2132                   list->next = (GList *)node;
2133                 }
2134               else
2135                 list_end->next = NULL;
2136             }
2137           else
2138             {
2139               clist->row_list = (GList *)node;
2140               list = (GList *)node;
2141               list->prev = NULL;
2142               list_end->next = NULL;
2143             }
2144         }
2145     }
2146
2147   gtk_ctree_pre_recursive (ctree, node, tree_update_level, NULL);
2148
2149   if (clist->row_list_end == NULL ||
2150       clist->row_list_end->next == (GList *)node)
2151     clist->row_list_end = list_end;
2152
2153   if (visible && update_focus_row)
2154     {
2155       gint pos;
2156
2157       pos = g_list_position (clist->row_list, (GList *)node);
2158
2159       if (pos <= clist->focus_row)
2160         {
2161           clist->focus_row += rows;
2162           clist->undo_anchor = clist->focus_row;
2163         }
2164     }
2165 }
2166
2167 static void
2168 gtk_ctree_unlink (GtkCTree     *ctree,
2169                   GtkCTreeNode *node,
2170                   gboolean      update_focus_row)
2171 {
2172   GtkCList *clist;
2173   gint rows;
2174   gint level;
2175   gint visible;
2176   GtkCTreeNode *work;
2177   GtkCTreeNode *parent;
2178   GList *list;
2179
2180   g_return_if_fail (ctree != NULL);
2181   g_return_if_fail (GTK_IS_CTREE (ctree));
2182   g_return_if_fail (node != NULL);
2183
2184   clist = GTK_CLIST (ctree);
2185
2186   if (update_focus_row && clist->selection_mode == GTK_SELECTION_EXTENDED)
2187     {
2188       if (clist->anchor != -1)
2189         GTK_CLIST_CLASS_FW (clist)->resync_selection (clist, NULL);
2190
2191       g_list_free (clist->undo_selection);
2192       g_list_free (clist->undo_unselection);
2193       clist->undo_selection = NULL;
2194       clist->undo_unselection = NULL;
2195     }
2196
2197   visible = gtk_ctree_is_viewable (ctree, node);
2198
2199   /* clist->row_list_end unlinked ? */
2200   if (visible &&
2201       (GTK_CTREE_NODE_NEXT (node) == NULL ||
2202        (GTK_CTREE_ROW (node)->children &&
2203         gtk_ctree_is_ancestor (ctree, node,
2204                                GTK_CTREE_NODE (clist->row_list_end)))))
2205     clist->row_list_end = (GList *) (GTK_CTREE_NODE_PREV (node));
2206
2207   /* update list */
2208   rows = 0;
2209   level = GTK_CTREE_ROW (node)->level;
2210   work = GTK_CTREE_NODE_NEXT (node);
2211   while (work && GTK_CTREE_ROW (work)->level > level)
2212     {
2213       work = GTK_CTREE_NODE_NEXT (work);
2214       rows++;
2215     }
2216
2217   if (visible)
2218     {
2219       clist->rows -= (rows + 1);
2220
2221       if (update_focus_row)
2222         {
2223           gint pos;
2224
2225           pos = g_list_position (clist->row_list, (GList *)node);
2226           if (pos + rows < clist->focus_row)
2227             clist->focus_row -= (rows + 1);
2228           else if (pos <= clist->focus_row)
2229             {
2230               if (!GTK_CTREE_ROW (node)->sibling)
2231                 clist->focus_row = MAX (pos - 1, 0);
2232               else
2233                 clist->focus_row = pos;
2234
2235               clist->focus_row = MIN (clist->focus_row, clist->rows - 1);
2236             }
2237           clist->undo_anchor = clist->focus_row;
2238         }
2239     }
2240
2241   if (work)
2242     {
2243       list = (GList *)GTK_CTREE_NODE_PREV (work);
2244       list->next = NULL;
2245       list = (GList *)work;
2246       list->prev = (GList *)GTK_CTREE_NODE_PREV (node);
2247     }
2248
2249   if (GTK_CTREE_NODE_PREV (node) &&
2250       GTK_CTREE_NODE_NEXT (GTK_CTREE_NODE_PREV (node)) == node)
2251     {
2252       list = (GList *)GTK_CTREE_NODE_PREV (node);
2253       list->next = (GList *)work;
2254     }
2255
2256   /* update tree */
2257   parent = GTK_CTREE_ROW (node)->parent;
2258   if (parent)
2259     {
2260       if (GTK_CTREE_ROW (parent)->children == node)
2261         {
2262           GTK_CTREE_ROW (parent)->children = GTK_CTREE_ROW (node)->sibling;
2263           if (!GTK_CTREE_ROW (parent)->children)
2264             gtk_ctree_collapse (ctree, parent);
2265         }
2266       else
2267         {
2268           GtkCTreeNode *sibling;
2269
2270           sibling = GTK_CTREE_ROW (parent)->children;
2271           while (GTK_CTREE_ROW (sibling)->sibling != node)
2272             sibling = GTK_CTREE_ROW (sibling)->sibling;
2273           GTK_CTREE_ROW (sibling)->sibling = GTK_CTREE_ROW (node)->sibling;
2274         }
2275     }
2276   else
2277     {
2278       if (clist->row_list == (GList *)node)
2279         clist->row_list = (GList *) (GTK_CTREE_ROW (node)->sibling);
2280       else
2281         {
2282           GtkCTreeNode *sibling;
2283
2284           sibling = GTK_CTREE_NODE (clist->row_list);
2285           while (GTK_CTREE_ROW (sibling)->sibling != node)
2286             sibling = GTK_CTREE_ROW (sibling)->sibling;
2287           GTK_CTREE_ROW (sibling)->sibling = GTK_CTREE_ROW (node)->sibling;
2288         }
2289     }
2290 }
2291
2292 static void
2293 real_row_move (GtkCList *clist,
2294                gint      source_row,
2295                gint      dest_row)
2296 {
2297   GtkCTree *ctree;
2298   GtkCTreeNode *node;
2299
2300   g_return_if_fail (clist != NULL);
2301   g_return_if_fail (GTK_IS_CTREE (clist));
2302
2303   if (GTK_CLIST_AUTO_SORT (clist))
2304     return;
2305
2306   if (source_row < 0 || source_row >= clist->rows ||
2307       dest_row   < 0 || dest_row   >= clist->rows ||
2308       source_row == dest_row)
2309     return;
2310
2311   ctree = GTK_CTREE (clist);
2312   node = GTK_CTREE_NODE (g_list_nth (clist->row_list, source_row));
2313
2314   if (source_row < dest_row)
2315     {
2316       GtkCTreeNode *work;
2317
2318       dest_row++;
2319       work = GTK_CTREE_ROW (node)->children;
2320
2321       while (work && GTK_CTREE_ROW (work)->level > GTK_CTREE_ROW (node)->level)
2322         {
2323           work = GTK_CTREE_NODE_NEXT (work);
2324           dest_row++;
2325         }
2326
2327       if (dest_row > clist->rows)
2328         dest_row = clist->rows;
2329     }
2330
2331   if (dest_row < clist->rows)
2332     {
2333       GtkCTreeNode *sibling;
2334
2335       sibling = GTK_CTREE_NODE (g_list_nth (clist->row_list, dest_row));
2336       gtk_ctree_move (ctree, node, GTK_CTREE_ROW (sibling)->parent, sibling);
2337     }
2338   else
2339     gtk_ctree_move (ctree, node, NULL, NULL);
2340 }
2341
2342 static void
2343 real_tree_move (GtkCTree     *ctree,
2344                 GtkCTreeNode *node,
2345                 GtkCTreeNode *new_parent,
2346                 GtkCTreeNode *new_sibling)
2347 {
2348   GtkCList *clist;
2349   GtkCTreeNode *work;
2350   gboolean visible = FALSE;
2351
2352   g_return_if_fail (ctree != NULL);
2353   g_return_if_fail (node != NULL);
2354   g_return_if_fail (!new_sibling ||
2355                     GTK_CTREE_ROW (new_sibling)->parent == new_parent);
2356
2357   if (new_parent && GTK_CTREE_ROW (new_parent)->is_leaf)
2358     return;
2359
2360   /* new_parent != child of child */
2361   for (work = new_parent; work; work = GTK_CTREE_ROW (work)->parent)
2362     if (work == node)
2363       return;
2364
2365   clist = GTK_CLIST (ctree);
2366
2367   visible = gtk_ctree_is_viewable (ctree, node);
2368
2369   if (clist->selection_mode == GTK_SELECTION_EXTENDED)
2370     {
2371       if (clist->anchor != -1)
2372         GTK_CLIST_CLASS_FW (clist)->resync_selection (clist, NULL);
2373
2374       g_list_free (clist->undo_selection);
2375       g_list_free (clist->undo_unselection);
2376       clist->undo_selection = NULL;
2377       clist->undo_unselection = NULL;
2378     }
2379
2380   if (GTK_CLIST_AUTO_SORT (clist))
2381     {
2382       if (new_parent == GTK_CTREE_ROW (node)->parent)
2383         return;
2384
2385       if (new_parent)
2386         new_sibling = GTK_CTREE_ROW (new_parent)->children;
2387       else
2388         new_sibling = GTK_CTREE_NODE (clist->row_list);
2389
2390       while (new_sibling && clist->compare
2391              (clist, GTK_CTREE_ROW (node), GTK_CTREE_ROW (new_sibling)) > 0)
2392         new_sibling = GTK_CTREE_ROW (new_sibling)->sibling;
2393     }
2394
2395   if (new_parent == GTK_CTREE_ROW (node)->parent &&
2396       new_sibling == GTK_CTREE_ROW (node)->sibling)
2397     return;
2398
2399   gtk_clist_freeze (clist);
2400
2401   work = NULL;
2402   if (gtk_ctree_is_viewable (ctree, node) ||
2403       gtk_ctree_is_viewable (ctree, new_sibling))
2404     work = GTK_CTREE_NODE (g_list_nth (clist->row_list, clist->focus_row));
2405
2406   gtk_ctree_unlink (ctree, node, FALSE);
2407   gtk_ctree_link (ctree, node, new_parent, new_sibling, FALSE);
2408
2409   if (work)
2410     {
2411       while (work &&  !gtk_ctree_is_viewable (ctree, work))
2412         work = GTK_CTREE_ROW (work)->parent;
2413       clist->focus_row = g_list_position (clist->row_list, (GList *)work);
2414       clist->undo_anchor = clist->focus_row;
2415     }
2416
2417   if (clist->column[ctree->tree_column].auto_resize &&
2418       !GTK_CLIST_AUTO_RESIZE_BLOCKED (clist) &&
2419       (visible || gtk_ctree_is_viewable (ctree, node)))
2420     gtk_clist_set_column_width
2421       (clist, ctree->tree_column,
2422        gtk_clist_optimal_column_width (clist, ctree->tree_column));
2423
2424   gtk_clist_thaw (clist);
2425 }
2426
2427 static void
2428 change_focus_row_expansion (GtkCTree          *ctree,
2429                             GtkCTreeExpansionType action)
2430 {
2431   GtkCList *clist;
2432   GtkCTreeNode *node;
2433
2434   g_return_if_fail (ctree != NULL);
2435   g_return_if_fail (GTK_IS_CTREE (ctree));
2436
2437   clist = GTK_CLIST (ctree);
2438
2439   if (gdk_pointer_is_grabbed () && GTK_WIDGET_HAS_GRAB (ctree))
2440     return;
2441
2442   if (!(node =
2443         GTK_CTREE_NODE (g_list_nth (clist->row_list, clist->focus_row))) ||
2444       GTK_CTREE_ROW (node)->is_leaf || !(GTK_CTREE_ROW (node)->children))
2445     return;
2446
2447   switch (action)
2448     {
2449     case GTK_CTREE_EXPANSION_EXPAND:
2450       gtk_ctree_expand (ctree, node);
2451       break;
2452     case GTK_CTREE_EXPANSION_EXPAND_RECURSIVE:
2453       gtk_ctree_expand_recursive (ctree, node);
2454       break;
2455     case GTK_CTREE_EXPANSION_COLLAPSE:
2456       gtk_ctree_collapse (ctree, node);
2457       break;
2458     case GTK_CTREE_EXPANSION_COLLAPSE_RECURSIVE:
2459       gtk_ctree_collapse_recursive (ctree, node);
2460       break;
2461     case GTK_CTREE_EXPANSION_TOGGLE:
2462       gtk_ctree_toggle_expansion (ctree, node);
2463       break;
2464     case GTK_CTREE_EXPANSION_TOGGLE_RECURSIVE:
2465       gtk_ctree_toggle_expansion_recursive (ctree, node);
2466       break;
2467     }
2468 }
2469
2470 static void
2471 real_tree_expand (GtkCTree     *ctree,
2472                   GtkCTreeNode *node)
2473 {
2474   GtkCList *clist;
2475   GtkCTreeNode *work;
2476   GtkRequisition requisition;
2477   gboolean visible;
2478   gint level;
2479
2480   g_return_if_fail (ctree != NULL);
2481   g_return_if_fail (GTK_IS_CTREE (ctree));
2482
2483   if (!node || GTK_CTREE_ROW (node)->expanded || GTK_CTREE_ROW (node)->is_leaf)
2484     return;
2485
2486   clist = GTK_CLIST (ctree);
2487
2488   if (clist->selection_mode == GTK_SELECTION_EXTENDED && clist->anchor >= 0)
2489     GTK_CLIST_CLASS_FW (clist)->resync_selection (clist, NULL);
2490
2491   GTK_CTREE_ROW (node)->expanded = TRUE;
2492   level = GTK_CTREE_ROW (node)->level;
2493
2494   visible = gtk_ctree_is_viewable (ctree, node);
2495   /* get cell width if tree_column is auto resized */
2496   if (visible && clist->column[ctree->tree_column].auto_resize &&
2497       !GTK_CLIST_AUTO_RESIZE_BLOCKED (clist))
2498     GTK_CLIST_CLASS_FW (clist)->cell_size_request
2499       (clist, &GTK_CTREE_ROW (node)->row, ctree->tree_column, &requisition);
2500
2501   /* unref/unset closed pixmap */
2502   if (GTK_CELL_PIXTEXT
2503       (GTK_CTREE_ROW (node)->row.cell[ctree->tree_column])->pixmap)
2504     {
2505       gdk_pixmap_unref
2506         (GTK_CELL_PIXTEXT
2507          (GTK_CTREE_ROW (node)->row.cell[ctree->tree_column])->pixmap);
2508
2509       GTK_CELL_PIXTEXT
2510         (GTK_CTREE_ROW (node)->row.cell[ctree->tree_column])->pixmap = NULL;
2511
2512       if (GTK_CELL_PIXTEXT
2513           (GTK_CTREE_ROW (node)->row.cell[ctree->tree_column])->mask)
2514         {
2515           gdk_pixmap_unref
2516             (GTK_CELL_PIXTEXT
2517              (GTK_CTREE_ROW (node)->row.cell[ctree->tree_column])->mask);
2518           GTK_CELL_PIXTEXT
2519             (GTK_CTREE_ROW (node)->row.cell[ctree->tree_column])->mask = NULL;
2520         }
2521     }
2522
2523   /* set/ref opened pixmap */
2524   if (GTK_CTREE_ROW (node)->pixmap_opened)
2525     {
2526       GTK_CELL_PIXTEXT
2527         (GTK_CTREE_ROW (node)->row.cell[ctree->tree_column])->pixmap =
2528         gdk_pixmap_ref (GTK_CTREE_ROW (node)->pixmap_opened);
2529
2530       if (GTK_CTREE_ROW (node)->mask_opened)
2531         GTK_CELL_PIXTEXT
2532           (GTK_CTREE_ROW (node)->row.cell[ctree->tree_column])->mask =
2533           gdk_pixmap_ref (GTK_CTREE_ROW (node)->mask_opened);
2534     }
2535
2536
2537   work = GTK_CTREE_ROW (node)->children;
2538   if (work)
2539     {
2540       GList *list = (GList *)work;
2541       gint *cell_width = NULL;
2542       gint tmp = 0;
2543       gint row;
2544       gint i;
2545
2546       if (visible && !GTK_CLIST_AUTO_RESIZE_BLOCKED (clist))
2547         {
2548           cell_width = g_new0 (gint, clist->columns);
2549           if (clist->column[ctree->tree_column].auto_resize)
2550               cell_width[ctree->tree_column] = requisition.width;
2551
2552           while (work)
2553             {
2554               /* search maximum cell widths of auto_resize columns */
2555               for (i = 0; i < clist->columns; i++)
2556                 if (clist->column[i].auto_resize)
2557                   {
2558                     GTK_CLIST_CLASS_FW (clist)->cell_size_request
2559                       (clist, &GTK_CTREE_ROW (work)->row, i, &requisition);
2560                     cell_width[i] = MAX (requisition.width, cell_width[i]);
2561                   }
2562
2563               list = (GList *)work;
2564               work = GTK_CTREE_NODE_NEXT (work);
2565               tmp++;
2566             }
2567         }
2568       else
2569         while (work)
2570           {
2571             list = (GList *)work;
2572             work = GTK_CTREE_NODE_NEXT (work);
2573             tmp++;
2574           }
2575
2576       list->next = (GList *)GTK_CTREE_NODE_NEXT (node);
2577
2578       if (GTK_CTREE_NODE_NEXT (node))
2579         {
2580           GList *tmp_list;
2581
2582           tmp_list = (GList *)GTK_CTREE_NODE_NEXT (node);
2583           tmp_list->prev = list;
2584         }
2585       else
2586         clist->row_list_end = list;
2587
2588       list = (GList *)node;
2589       list->next = (GList *)(GTK_CTREE_ROW (node)->children);
2590
2591       if (visible)
2592         {
2593           /* resize auto_resize columns if needed */
2594           for (i = 0; i < clist->columns; i++)
2595             if (clist->column[i].auto_resize &&
2596                 cell_width[i] > clist->column[i].width)
2597               gtk_clist_set_column_width (clist, i, cell_width[i]);
2598           g_free (cell_width);
2599
2600           /* update focus_row position */
2601           row = g_list_position (clist->row_list, (GList *)node);
2602           if (row < clist->focus_row)
2603             clist->focus_row += tmp;
2604
2605           clist->rows += tmp;
2606           CLIST_REFRESH (clist);
2607         }
2608     }
2609   else if (visible && clist->column[ctree->tree_column].auto_resize)
2610     /* resize tree_column if needed */
2611     column_auto_resize (clist, &GTK_CTREE_ROW (node)->row, ctree->tree_column,
2612                         requisition.width);
2613 }
2614
2615 static void
2616 real_tree_collapse (GtkCTree     *ctree,
2617                     GtkCTreeNode *node)
2618 {
2619   GtkCList *clist;
2620   GtkCTreeNode *work;
2621   GtkRequisition requisition;
2622   gboolean visible;
2623   gint level;
2624
2625   g_return_if_fail (ctree != NULL);
2626   g_return_if_fail (GTK_IS_CTREE (ctree));
2627
2628   if (!node || !GTK_CTREE_ROW (node)->expanded ||
2629       GTK_CTREE_ROW (node)->is_leaf)
2630     return;
2631
2632   clist = GTK_CLIST (ctree);
2633
2634   if (clist->selection_mode == GTK_SELECTION_EXTENDED && clist->anchor >= 0)
2635     GTK_CLIST_CLASS_FW (clist)->resync_selection (clist, NULL);
2636
2637   GTK_CTREE_ROW (node)->expanded = FALSE;
2638   level = GTK_CTREE_ROW (node)->level;
2639
2640   visible = gtk_ctree_is_viewable (ctree, node);
2641   /* get cell width if tree_column is auto resized */
2642   if (visible && clist->column[ctree->tree_column].auto_resize &&
2643       !GTK_CLIST_AUTO_RESIZE_BLOCKED (clist))
2644     GTK_CLIST_CLASS_FW (clist)->cell_size_request
2645       (clist, &GTK_CTREE_ROW (node)->row, ctree->tree_column, &requisition);
2646
2647   /* unref/unset opened pixmap */
2648   if (GTK_CELL_PIXTEXT
2649       (GTK_CTREE_ROW (node)->row.cell[ctree->tree_column])->pixmap)
2650     {
2651       gdk_pixmap_unref
2652         (GTK_CELL_PIXTEXT
2653          (GTK_CTREE_ROW (node)->row.cell[ctree->tree_column])->pixmap);
2654
2655       GTK_CELL_PIXTEXT
2656         (GTK_CTREE_ROW (node)->row.cell[ctree->tree_column])->pixmap = NULL;
2657
2658       if (GTK_CELL_PIXTEXT
2659           (GTK_CTREE_ROW (node)->row.cell[ctree->tree_column])->mask)
2660         {
2661           gdk_pixmap_unref
2662             (GTK_CELL_PIXTEXT
2663              (GTK_CTREE_ROW (node)->row.cell[ctree->tree_column])->mask);
2664           GTK_CELL_PIXTEXT
2665             (GTK_CTREE_ROW (node)->row.cell[ctree->tree_column])->mask = NULL;
2666         }
2667     }
2668
2669   /* set/ref closed pixmap */
2670   if (GTK_CTREE_ROW (node)->pixmap_closed)
2671     {
2672       GTK_CELL_PIXTEXT
2673         (GTK_CTREE_ROW (node)->row.cell[ctree->tree_column])->pixmap =
2674         gdk_pixmap_ref (GTK_CTREE_ROW (node)->pixmap_closed);
2675
2676       if (GTK_CTREE_ROW (node)->mask_closed)
2677         GTK_CELL_PIXTEXT
2678           (GTK_CTREE_ROW (node)->row.cell[ctree->tree_column])->mask =
2679           gdk_pixmap_ref (GTK_CTREE_ROW (node)->mask_closed);
2680     }
2681
2682   work = GTK_CTREE_ROW (node)->children;
2683   if (work)
2684     {
2685       gint tmp = 0;
2686       gint row;
2687       GList *list;
2688
2689       while (work && GTK_CTREE_ROW (work)->level > level)
2690         {
2691           work = GTK_CTREE_NODE_NEXT (work);
2692           tmp++;
2693         }
2694
2695       if (work)
2696         {
2697           list = (GList *)node;
2698           list->next = (GList *)work;
2699           list = (GList *)GTK_CTREE_NODE_PREV (work);
2700           list->next = NULL;
2701           list = (GList *)work;
2702           list->prev = (GList *)node;
2703         }
2704       else
2705         {
2706           list = (GList *)node;
2707           list->next = NULL;
2708           clist->row_list_end = (GList *)node;
2709         }
2710
2711       if (visible)
2712         {
2713           /* resize auto_resize columns if needed */
2714           auto_resize_columns (clist);
2715
2716           row = g_list_position (clist->row_list, (GList *)node);
2717           if (row < clist->focus_row)
2718             clist->focus_row -= tmp;
2719           clist->rows -= tmp;
2720           CLIST_REFRESH (clist);
2721         }
2722     }
2723   else if (visible && clist->column[ctree->tree_column].auto_resize &&
2724            !GTK_CLIST_AUTO_RESIZE_BLOCKED (clist))
2725     /* resize tree_column if needed */
2726     column_auto_resize (clist, &GTK_CTREE_ROW (node)->row, ctree->tree_column,
2727                         requisition.width);
2728
2729 }
2730
2731 static void
2732 column_auto_resize (GtkCList    *clist,
2733                     GtkCListRow *clist_row,
2734                     gint         column,
2735                     gint         old_width)
2736 {
2737   /* resize column if needed for auto_resize */
2738   GtkRequisition requisition;
2739
2740   if (!clist->column[column].auto_resize ||
2741       GTK_CLIST_AUTO_RESIZE_BLOCKED (clist))
2742     return;
2743
2744   if (clist_row)
2745     GTK_CLIST_CLASS_FW (clist)->cell_size_request (clist, clist_row,
2746                                                    column, &requisition);
2747   else
2748     requisition.width = 0;
2749
2750   if (requisition.width > clist->column[column].width)
2751     gtk_clist_set_column_width (clist, column, requisition.width);
2752   else if (requisition.width < old_width &&
2753            old_width == clist->column[column].width)
2754     {
2755       GList *list;
2756       gint new_width;
2757
2758       /* run a "gtk_clist_optimal_column_width" but break, if
2759        * the column doesn't shrink */
2760       if (GTK_CLIST_SHOW_TITLES (clist) && clist->column[column].button)
2761         new_width = (clist->column[column].button->requisition.width -
2762                      (CELL_SPACING + (2 * COLUMN_INSET)));
2763       else
2764         new_width = 0;
2765
2766       for (list = clist->row_list; list; list = list->next)
2767         {
2768           GTK_CLIST_CLASS_FW (clist)->cell_size_request
2769             (clist, GTK_CLIST_ROW (list), column, &requisition);
2770           new_width = MAX (new_width, requisition.width);
2771           if (new_width == clist->column[column].width)
2772             break;
2773         }
2774       if (new_width < clist->column[column].width)
2775         gtk_clist_set_column_width (clist, column, new_width);
2776     }
2777 }
2778
2779 static void
2780 auto_resize_columns (GtkCList *clist)
2781 {
2782   gint i;
2783
2784   if (GTK_CLIST_AUTO_RESIZE_BLOCKED (clist))
2785     return;
2786
2787   for (i = 0; i < clist->columns; i++)
2788     column_auto_resize (clist, NULL, i, clist->column[i].width);
2789 }
2790
2791 static void
2792 cell_size_request (GtkCList       *clist,
2793                    GtkCListRow    *clist_row,
2794                    gint            column,
2795                    GtkRequisition *requisition)
2796 {
2797   GtkCTree *ctree;
2798   GtkStyle *style;
2799   gint width;
2800   gint height;
2801
2802   g_return_if_fail (clist != NULL);
2803   g_return_if_fail (GTK_IS_CTREE (clist));
2804   g_return_if_fail (requisition != NULL);
2805
2806   ctree = GTK_CTREE (clist);
2807
2808   get_cell_style (clist, clist_row, GTK_STATE_NORMAL, column, &style,
2809                   NULL, NULL);
2810
2811   switch (clist_row->cell[column].type)
2812     {
2813     case GTK_CELL_TEXT:
2814       requisition->width =
2815         gdk_string_width (style->font,
2816                           GTK_CELL_TEXT (clist_row->cell[column])->text);
2817       requisition->height = style->font->ascent + style->font->descent;
2818       break;
2819     case GTK_CELL_PIXTEXT:
2820       if (GTK_CELL_PIXTEXT (clist_row->cell[column])->pixmap)
2821         {
2822           gdk_window_get_size (GTK_CELL_PIXTEXT
2823                                (clist_row->cell[column])->pixmap,
2824                                &width, &height);
2825           width += GTK_CELL_PIXTEXT (clist_row->cell[column])->spacing;
2826         }
2827       else
2828         width = height = 0;
2829
2830       requisition->width = width +
2831         gdk_string_width (style->font,
2832                           GTK_CELL_TEXT (clist_row->cell[column])->text);
2833
2834       requisition->height = MAX (style->font->ascent + style->font->descent,
2835                                  height);
2836       if (column == ctree->tree_column)
2837         {
2838           requisition->width += (ctree->tree_spacing + ctree->tree_indent *
2839                                  (((GtkCTreeRow *) clist_row)->level - 1));
2840           switch (ctree->expander_style)
2841             {
2842             case GTK_CTREE_EXPANDER_NONE:
2843               break;
2844             case GTK_CTREE_EXPANDER_TRIANGLE:
2845               requisition->width += PM_SIZE + 3;
2846               break;
2847             case GTK_CTREE_EXPANDER_SQUARE:
2848             case GTK_CTREE_EXPANDER_CIRCULAR:
2849               requisition->width += PM_SIZE + 1;
2850               break;
2851             }
2852           if (ctree->line_style == GTK_CTREE_LINES_TABBED)
2853             requisition->width += 3;
2854         }
2855       break;
2856     case GTK_CELL_PIXMAP:
2857       gdk_window_get_size (GTK_CELL_PIXMAP (clist_row->cell[column])->pixmap,
2858                            &width, &height);
2859       requisition->width = width;
2860       requisition->height = height;
2861       break;
2862     default:
2863       requisition->width  = 0;
2864       requisition->height = 0;
2865       break;
2866     }
2867
2868   requisition->width  += clist_row->cell[column].horizontal;
2869   requisition->height += clist_row->cell[column].vertical;
2870 }
2871
2872 static void
2873 set_cell_contents (GtkCList    *clist,
2874                    GtkCListRow *clist_row,
2875                    gint         column,
2876                    GtkCellType  type,
2877                    const gchar *text,
2878                    guint8       spacing,
2879                    GdkPixmap   *pixmap,
2880                    GdkBitmap   *mask)
2881 {
2882   gboolean visible = FALSE;
2883   GtkCTree *ctree;
2884   GtkRequisition requisition;
2885
2886   g_return_if_fail (clist != NULL);
2887   g_return_if_fail (GTK_IS_CTREE (clist));
2888   g_return_if_fail (clist_row != NULL);
2889
2890   ctree = GTK_CTREE (clist);
2891
2892   if (clist->column[column].auto_resize &&
2893       !GTK_CLIST_AUTO_RESIZE_BLOCKED (clist))
2894     {
2895       GtkCTreeNode *parent;
2896
2897       parent = ((GtkCTreeRow *)clist_row)->parent;
2898       if (!parent || (parent && GTK_CTREE_ROW (parent)->expanded &&
2899                       gtk_ctree_is_viewable (ctree, parent)))
2900         {
2901           visible = TRUE;
2902           GTK_CLIST_CLASS_FW (clist)->cell_size_request (clist, clist_row,
2903                                                          column, &requisition);
2904         }
2905     }
2906
2907   switch (clist_row->cell[column].type)
2908     {
2909     case GTK_CELL_EMPTY:
2910       break;
2911
2912     case GTK_CELL_TEXT:
2913       g_free (GTK_CELL_TEXT (clist_row->cell[column])->text);
2914       break;
2915     case GTK_CELL_PIXMAP:
2916       gdk_pixmap_unref (GTK_CELL_PIXMAP (clist_row->cell[column])->pixmap);
2917       if (GTK_CELL_PIXMAP (clist_row->cell[column])->mask)
2918         gdk_bitmap_unref (GTK_CELL_PIXMAP (clist_row->cell[column])->mask);
2919       break;
2920     case GTK_CELL_PIXTEXT:
2921       if (GTK_CELL_PIXTEXT (clist_row->cell[column])->text)
2922         g_free (GTK_CELL_PIXTEXT (clist_row->cell[column])->text);
2923       if (GTK_CELL_PIXTEXT (clist_row->cell[column])->pixmap)
2924         {
2925           gdk_pixmap_unref
2926             (GTK_CELL_PIXTEXT (clist_row->cell[column])->pixmap);
2927           if (GTK_CELL_PIXTEXT (clist_row->cell[column])->mask)
2928             gdk_bitmap_unref
2929               (GTK_CELL_PIXTEXT (clist_row->cell[column])->mask);
2930         }
2931       break;
2932     case GTK_CELL_WIDGET:
2933       /* unimplimented */
2934       break;
2935
2936     default:
2937       break;
2938     }
2939
2940   clist_row->cell[column].type = GTK_CELL_EMPTY;
2941   if (column == ctree->tree_column && type != GTK_CELL_EMPTY)
2942     type = GTK_CELL_PIXTEXT;
2943
2944   switch (type)
2945     {
2946     case GTK_CELL_TEXT:
2947       if (text)
2948         {
2949           clist_row->cell[column].type = GTK_CELL_TEXT;
2950           GTK_CELL_TEXT (clist_row->cell[column])->text = g_strdup (text);
2951         }
2952       break;
2953     case GTK_CELL_PIXMAP:
2954       if (pixmap)
2955         {
2956           clist_row->cell[column].type = GTK_CELL_PIXMAP;
2957           GTK_CELL_PIXMAP (clist_row->cell[column])->pixmap = pixmap;
2958           /* We set the mask even if it is NULL */
2959           GTK_CELL_PIXMAP (clist_row->cell[column])->mask = mask;
2960         }
2961       break;
2962     case GTK_CELL_PIXTEXT:
2963       if (column == ctree->tree_column)
2964         {
2965           clist_row->cell[column].type = GTK_CELL_PIXTEXT;
2966           GTK_CELL_PIXTEXT (clist_row->cell[column])->spacing = spacing;
2967           if (text)
2968             GTK_CELL_PIXTEXT (clist_row->cell[column])->text = g_strdup (text);
2969           else
2970             GTK_CELL_PIXTEXT (clist_row->cell[column])->text = NULL;
2971           if (pixmap)
2972             {
2973               GTK_CELL_PIXTEXT (clist_row->cell[column])->pixmap = pixmap;
2974               GTK_CELL_PIXTEXT (clist_row->cell[column])->mask = mask;
2975             }
2976           else
2977             {
2978               GTK_CELL_PIXTEXT (clist_row->cell[column])->pixmap = NULL;
2979               GTK_CELL_PIXTEXT (clist_row->cell[column])->mask = NULL;
2980             }
2981         }
2982       else if (text && pixmap)
2983         {
2984           clist_row->cell[column].type = GTK_CELL_PIXTEXT;
2985           GTK_CELL_PIXTEXT (clist_row->cell[column])->text = g_strdup (text);
2986           GTK_CELL_PIXTEXT (clist_row->cell[column])->spacing = spacing;
2987           GTK_CELL_PIXTEXT (clist_row->cell[column])->pixmap = pixmap;
2988           GTK_CELL_PIXTEXT (clist_row->cell[column])->mask = mask;
2989         }
2990       break;
2991     default:
2992       break;
2993     }
2994
2995   if (visible && clist->column[column].auto_resize &&
2996       !GTK_CLIST_AUTO_RESIZE_BLOCKED (clist))
2997     column_auto_resize (clist, clist_row, column, requisition.width);
2998 }
2999
3000 static void
3001 set_node_info (GtkCTree     *ctree,
3002                GtkCTreeNode *node,
3003                const gchar  *text,
3004                guint8        spacing,
3005                GdkPixmap    *pixmap_closed,
3006                GdkBitmap    *mask_closed,
3007                GdkPixmap    *pixmap_opened,
3008                GdkBitmap    *mask_opened,
3009                gboolean      is_leaf,
3010                gboolean      expanded)
3011 {
3012   if (GTK_CTREE_ROW (node)->pixmap_opened)
3013     {
3014       gdk_pixmap_unref (GTK_CTREE_ROW (node)->pixmap_opened);
3015       if (GTK_CTREE_ROW (node)->mask_opened)
3016         gdk_bitmap_unref (GTK_CTREE_ROW (node)->mask_opened);
3017     }
3018   if (GTK_CTREE_ROW (node)->pixmap_closed)
3019     {
3020       gdk_pixmap_unref (GTK_CTREE_ROW (node)->pixmap_closed);
3021       if (GTK_CTREE_ROW (node)->mask_closed)
3022         gdk_bitmap_unref (GTK_CTREE_ROW (node)->mask_closed);
3023     }
3024
3025   GTK_CTREE_ROW (node)->pixmap_opened = NULL;
3026   GTK_CTREE_ROW (node)->mask_opened   = NULL;
3027   GTK_CTREE_ROW (node)->pixmap_closed = NULL;
3028   GTK_CTREE_ROW (node)->mask_closed   = NULL;
3029
3030   if (pixmap_closed)
3031     {
3032       GTK_CTREE_ROW (node)->pixmap_closed = gdk_pixmap_ref (pixmap_closed);
3033       if (mask_closed)
3034         GTK_CTREE_ROW (node)->mask_closed = gdk_bitmap_ref (mask_closed);
3035     }
3036   if (pixmap_opened)
3037     {
3038       GTK_CTREE_ROW (node)->pixmap_opened = gdk_pixmap_ref (pixmap_opened);
3039       if (mask_opened)
3040         GTK_CTREE_ROW (node)->mask_opened = gdk_bitmap_ref (mask_opened);
3041     }
3042
3043   GTK_CTREE_ROW (node)->is_leaf  = is_leaf;
3044   GTK_CTREE_ROW (node)->expanded = (is_leaf) ? FALSE : expanded;
3045
3046   if (GTK_CTREE_ROW (node)->expanded)
3047     gtk_ctree_node_set_pixtext (ctree, node, ctree->tree_column,
3048                                 text, spacing, pixmap_opened, mask_opened);
3049   else
3050     gtk_ctree_node_set_pixtext (ctree, node, ctree->tree_column,
3051                                 text, spacing, pixmap_closed, mask_closed);
3052 }
3053
3054 static void
3055 tree_delete (GtkCTree     *ctree,
3056              GtkCTreeNode *node,
3057              gpointer      data)
3058 {
3059   GtkCList *clist;
3060
3061   clist = GTK_CLIST (ctree);
3062
3063   if (GTK_CTREE_ROW (node)->row.state == GTK_STATE_SELECTED)
3064     {
3065       GList *work;
3066
3067       work = g_list_find (clist->selection, node);
3068       if (work)
3069         {
3070           if (clist->selection_end && clist->selection_end == work)
3071             clist->selection_end = clist->selection_end->prev;
3072           clist->selection = g_list_remove (clist->selection, node);
3073         }
3074     }
3075
3076   row_delete (ctree, GTK_CTREE_ROW (node));
3077   g_list_free_1 ((GList *)node);
3078 }
3079
3080 static void
3081 tree_delete_row (GtkCTree     *ctree,
3082                  GtkCTreeNode *node,
3083                  gpointer      data)
3084 {
3085   row_delete (ctree, GTK_CTREE_ROW (node));
3086   g_list_free_1 ((GList *)node);
3087 }
3088
3089 static void
3090 tree_update_level (GtkCTree     *ctree,
3091                    GtkCTreeNode *node,
3092                    gpointer      data)
3093 {
3094   if (!node)
3095     return;
3096
3097   if (GTK_CTREE_ROW (node)->parent)
3098       GTK_CTREE_ROW (node)->level =
3099         GTK_CTREE_ROW (GTK_CTREE_ROW (node)->parent)->level + 1;
3100   else
3101       GTK_CTREE_ROW (node)->level = 1;
3102 }
3103
3104 static void
3105 tree_select (GtkCTree     *ctree,
3106              GtkCTreeNode *node,
3107              gpointer      data)
3108 {
3109   if (node && GTK_CTREE_ROW (node)->row.state != GTK_STATE_SELECTED &&
3110       GTK_CTREE_ROW (node)->row.selectable)
3111     gtk_signal_emit (GTK_OBJECT (ctree), ctree_signals[TREE_SELECT_ROW],
3112                      node, -1);
3113 }
3114
3115 static void
3116 tree_unselect (GtkCTree     *ctree,
3117                GtkCTreeNode *node,
3118                gpointer      data)
3119 {
3120   if (node && GTK_CTREE_ROW (node)->row.state == GTK_STATE_SELECTED)
3121     gtk_signal_emit (GTK_OBJECT (ctree), ctree_signals[TREE_UNSELECT_ROW],
3122                      node, -1);
3123 }
3124
3125 static void
3126 tree_expand (GtkCTree     *ctree,
3127              GtkCTreeNode *node,
3128              gpointer      data)
3129 {
3130   if (node && !GTK_CTREE_ROW (node)->expanded)
3131     gtk_signal_emit (GTK_OBJECT (ctree), ctree_signals[TREE_EXPAND], node);
3132 }
3133
3134 static void
3135 tree_collapse (GtkCTree     *ctree,
3136                GtkCTreeNode *node,
3137                gpointer      data)
3138 {
3139   if (node && GTK_CTREE_ROW (node)->expanded)
3140     gtk_signal_emit (GTK_OBJECT (ctree), ctree_signals[TREE_COLLAPSE], node);
3141 }
3142
3143 static void
3144 tree_collapse_to_depth (GtkCTree     *ctree,
3145                         GtkCTreeNode *node,
3146                         gint          depth)
3147 {
3148   if (node && GTK_CTREE_ROW (node)->level == depth)
3149     gtk_ctree_collapse_recursive (ctree, node);
3150 }
3151
3152 static void
3153 tree_toggle_expansion (GtkCTree     *ctree,
3154                        GtkCTreeNode *node,
3155                        gpointer      data)
3156 {
3157   if (!node)
3158     return;
3159
3160   if (GTK_CTREE_ROW (node)->expanded)
3161     gtk_signal_emit (GTK_OBJECT (ctree), ctree_signals[TREE_COLLAPSE], node);
3162   else
3163     gtk_signal_emit (GTK_OBJECT (ctree), ctree_signals[TREE_EXPAND], node);
3164 }
3165
3166 static GtkCTreeRow *
3167 row_new (GtkCTree *ctree)
3168 {
3169   GtkCList *clist;
3170   GtkCTreeRow *ctree_row;
3171   int i;
3172
3173   clist = GTK_CLIST (ctree);
3174   ctree_row = g_chunk_new (GtkCTreeRow, clist->row_mem_chunk);
3175   ctree_row->row.cell = g_chunk_new (GtkCell, clist->cell_mem_chunk);
3176
3177   for (i = 0; i < clist->columns; i++)
3178     {
3179       ctree_row->row.cell[i].type = GTK_CELL_EMPTY;
3180       ctree_row->row.cell[i].vertical = 0;
3181       ctree_row->row.cell[i].horizontal = 0;
3182       ctree_row->row.cell[i].style = NULL;
3183     }
3184
3185   GTK_CELL_PIXTEXT (ctree_row->row.cell[ctree->tree_column])->text = NULL;
3186
3187   ctree_row->row.fg_set     = FALSE;
3188   ctree_row->row.bg_set     = FALSE;
3189   ctree_row->row.style      = NULL;
3190   ctree_row->row.selectable = TRUE;
3191   ctree_row->row.state      = GTK_STATE_NORMAL;
3192   ctree_row->row.data       = NULL;
3193   ctree_row->row.destroy    = NULL;
3194
3195   ctree_row->level         = 0;
3196   ctree_row->expanded      = FALSE;
3197   ctree_row->parent        = NULL;
3198   ctree_row->sibling       = NULL;
3199   ctree_row->children      = NULL;
3200   ctree_row->pixmap_closed = NULL;
3201   ctree_row->mask_closed   = NULL;
3202   ctree_row->pixmap_opened = NULL;
3203   ctree_row->mask_opened   = NULL;
3204
3205   return ctree_row;
3206 }
3207
3208 static void
3209 row_delete (GtkCTree    *ctree,
3210             GtkCTreeRow *ctree_row)
3211 {
3212   GtkCList *clist;
3213   gint i;
3214
3215   clist = GTK_CLIST (ctree);
3216
3217   for (i = 0; i < clist->columns; i++)
3218     {
3219       GTK_CLIST_CLASS_FW (clist)->set_cell_contents
3220         (clist, &(ctree_row->row), i, GTK_CELL_EMPTY, NULL, 0, NULL, NULL);
3221       if (ctree_row->row.cell[i].style)
3222         {
3223           if (GTK_WIDGET_REALIZED (ctree))
3224             gtk_style_detach (ctree_row->row.cell[i].style);
3225           gtk_style_unref (ctree_row->row.cell[i].style);
3226         }
3227     }
3228
3229   if (ctree_row->row.style)
3230     {
3231       if (GTK_WIDGET_REALIZED (ctree))
3232         gtk_style_detach (ctree_row->row.style);
3233       gtk_style_unref (ctree_row->row.style);
3234     }
3235
3236   if (ctree_row->pixmap_closed)
3237     {
3238       gdk_pixmap_unref (ctree_row->pixmap_closed);
3239       if (ctree_row->mask_closed)
3240         gdk_bitmap_unref (ctree_row->mask_closed);
3241     }
3242
3243   if (ctree_row->pixmap_opened)
3244     {
3245       gdk_pixmap_unref (ctree_row->pixmap_opened);
3246       if (ctree_row->mask_opened)
3247         gdk_bitmap_unref (ctree_row->mask_opened);
3248     }
3249
3250   if (ctree_row->row.destroy)
3251     ctree_row->row.destroy (ctree_row->row.data);
3252
3253   g_mem_chunk_free (clist->cell_mem_chunk, ctree_row->row.cell);
3254   g_mem_chunk_free (clist->row_mem_chunk, ctree_row);
3255 }
3256
3257 static void
3258 real_select_row (GtkCList *clist,
3259                  gint      row,
3260                  gint      column,
3261                  GdkEvent *event)
3262 {
3263   GList *node;
3264
3265   g_return_if_fail (clist != NULL);
3266   g_return_if_fail (GTK_IS_CTREE (clist));
3267
3268   if ((node = g_list_nth (clist->row_list, row)) &&
3269       GTK_CTREE_ROW (node)->row.selectable)
3270     gtk_signal_emit (GTK_OBJECT (clist), ctree_signals[TREE_SELECT_ROW],
3271                      node, column);
3272 }
3273
3274 static void
3275 real_unselect_row (GtkCList *clist,
3276                    gint      row,
3277                    gint      column,
3278                    GdkEvent *event)
3279 {
3280   GList *node;
3281
3282   g_return_if_fail (clist != NULL);
3283   g_return_if_fail (GTK_IS_CTREE (clist));
3284
3285   if ((node = g_list_nth (clist->row_list, row)))
3286     gtk_signal_emit (GTK_OBJECT (clist), ctree_signals[TREE_UNSELECT_ROW],
3287                      node, column);
3288 }
3289
3290 static void
3291 real_tree_select (GtkCTree     *ctree,
3292                   GtkCTreeNode *node,
3293                   gint          column)
3294 {
3295   GtkCList *clist;
3296   GList *list;
3297   GtkCTreeNode *sel_row;
3298   gboolean node_selected;
3299
3300   g_return_if_fail (ctree != NULL);
3301   g_return_if_fail (GTK_IS_CTREE (ctree));
3302
3303   if (!node || GTK_CTREE_ROW (node)->row.state == GTK_STATE_SELECTED ||
3304       !GTK_CTREE_ROW (node)->row.selectable)
3305     return;
3306
3307   clist = GTK_CLIST (ctree);
3308
3309   switch (clist->selection_mode)
3310     {
3311     case GTK_SELECTION_SINGLE:
3312     case GTK_SELECTION_BROWSE:
3313
3314       node_selected = FALSE;
3315       list = clist->selection;
3316
3317       while (list)
3318         {
3319           sel_row = list->data;
3320           list = list->next;
3321
3322           if (node == sel_row)
3323             node_selected = TRUE;
3324           else
3325             gtk_signal_emit (GTK_OBJECT (ctree),
3326                              ctree_signals[TREE_UNSELECT_ROW], sel_row, column);
3327         }
3328
3329       if (node_selected)
3330         return;
3331
3332     default:
3333       break;
3334     }
3335
3336   GTK_CTREE_ROW (node)->row.state = GTK_STATE_SELECTED;
3337
3338   if (!clist->selection)
3339     {
3340       clist->selection = g_list_append (clist->selection, node);
3341       clist->selection_end = clist->selection;
3342     }
3343   else
3344     clist->selection_end = g_list_append (clist->selection_end, node)->next;
3345
3346   tree_draw_node (ctree, node);
3347 }
3348
3349 static void
3350 real_tree_unselect (GtkCTree     *ctree,
3351                     GtkCTreeNode *node,
3352                     gint          column)
3353 {
3354   GtkCList *clist;
3355
3356   g_return_if_fail (ctree != NULL);
3357   g_return_if_fail (GTK_IS_CTREE (ctree));
3358
3359   if (!node || GTK_CTREE_ROW (node)->row.state != GTK_STATE_SELECTED)
3360     return;
3361
3362   clist = GTK_CLIST (ctree);
3363
3364   if (clist->selection_end && clist->selection_end->data == node)
3365     clist->selection_end = clist->selection_end->prev;
3366
3367   clist->selection = g_list_remove (clist->selection, node);
3368
3369   GTK_CTREE_ROW (node)->row.state = GTK_STATE_NORMAL;
3370
3371   tree_draw_node (ctree, node);
3372 }
3373
3374 static void
3375 select_row_recursive (GtkCTree     *ctree,
3376                       GtkCTreeNode *node,
3377                       gpointer      data)
3378 {
3379   if (!node || GTK_CTREE_ROW (node)->row.state == GTK_STATE_SELECTED ||
3380       !GTK_CTREE_ROW (node)->row.selectable)
3381     return;
3382
3383   GTK_CLIST (ctree)->undo_unselection =
3384     g_list_prepend (GTK_CLIST (ctree)->undo_unselection, node);
3385   gtk_ctree_select (ctree, node);
3386 }
3387
3388 static void
3389 real_select_all (GtkCList *clist)
3390 {
3391   GtkCTree *ctree;
3392   GtkCTreeNode *node;
3393
3394   g_return_if_fail (clist != NULL);
3395   g_return_if_fail (GTK_IS_CTREE (clist));
3396
3397   ctree = GTK_CTREE (clist);
3398
3399   switch (clist->selection_mode)
3400     {
3401     case GTK_SELECTION_SINGLE:
3402     case GTK_SELECTION_BROWSE:
3403       return;
3404
3405     case GTK_SELECTION_EXTENDED:
3406
3407       gtk_clist_freeze (clist);
3408
3409       g_list_free (clist->undo_selection);
3410       g_list_free (clist->undo_unselection);
3411       clist->undo_selection = NULL;
3412       clist->undo_unselection = NULL;
3413
3414       clist->anchor_state = GTK_STATE_SELECTED;
3415       clist->anchor = -1;
3416       clist->drag_pos = -1;
3417       clist->undo_anchor = clist->focus_row;
3418
3419       for (node = GTK_CTREE_NODE (clist->row_list); node;
3420            node = GTK_CTREE_NODE_NEXT (node))
3421         gtk_ctree_pre_recursive (ctree, node, select_row_recursive, NULL);
3422
3423       gtk_clist_thaw (clist);
3424       break;
3425
3426     case GTK_SELECTION_MULTIPLE:
3427       gtk_ctree_select_recursive (ctree, NULL);
3428       break;;
3429     }
3430 }
3431
3432 static void
3433 real_unselect_all (GtkCList *clist)
3434 {
3435   GtkCTree *ctree;
3436   GtkCTreeNode *node;
3437   GList *list;
3438
3439   g_return_if_fail (clist != NULL);
3440   g_return_if_fail (GTK_IS_CTREE (clist));
3441
3442   ctree = GTK_CTREE (clist);
3443
3444   switch (clist->selection_mode)
3445     {
3446     case GTK_SELECTION_BROWSE:
3447       if (clist->focus_row >= 0)
3448         {
3449           gtk_ctree_select
3450             (ctree,
3451              GTK_CTREE_NODE (g_list_nth (clist->row_list, clist->focus_row)));
3452           return;
3453         }
3454       break;
3455
3456     case GTK_SELECTION_EXTENDED:
3457       g_list_free (clist->undo_selection);
3458       g_list_free (clist->undo_unselection);
3459       clist->undo_selection = NULL;
3460       clist->undo_unselection = NULL;
3461
3462       clist->anchor = -1;
3463       clist->drag_pos = -1;
3464       clist->undo_anchor = clist->focus_row;
3465       break;
3466
3467     default:
3468       break;
3469     }
3470
3471   list = clist->selection;
3472
3473   while (list)
3474     {
3475       node = list->data;
3476       list = list->next;
3477       gtk_ctree_unselect (ctree, node);
3478     }
3479 }
3480
3481 static gboolean
3482 ctree_is_hot_spot (GtkCTree     *ctree,
3483                    GtkCTreeNode *node,
3484                    gint          row,
3485                    gint          x,
3486                    gint          y)
3487 {
3488   GtkCTreeRow *tree_row;
3489   GtkCList *clist;
3490   GtkCellPixText *cell;
3491   gint xl;
3492   gint yu;
3493
3494   g_return_val_if_fail (ctree != NULL, FALSE);
3495   g_return_val_if_fail (GTK_IS_CTREE (ctree), FALSE);
3496   g_return_val_if_fail (node != NULL, FALSE);
3497
3498   clist = GTK_CLIST (ctree);
3499
3500   if (!clist->column[ctree->tree_column].visible ||
3501       ctree->expander_style == GTK_CTREE_EXPANDER_NONE)
3502     return FALSE;
3503
3504   tree_row = GTK_CTREE_ROW (node);
3505
3506   cell = GTK_CELL_PIXTEXT(tree_row->row.cell[ctree->tree_column]);
3507
3508   yu = (ROW_TOP_YPIXEL (clist, row) + (clist->row_height - PM_SIZE) / 2 -
3509         (clist->row_height - 1) % 2);
3510
3511   if (clist->column[ctree->tree_column].justification == GTK_JUSTIFY_RIGHT)
3512     xl = (clist->column[ctree->tree_column].area.x +
3513           clist->column[ctree->tree_column].area.width - 1 + clist->hoffset -
3514           (tree_row->level - 1) * ctree->tree_indent - PM_SIZE -
3515           (ctree->line_style == GTK_CTREE_LINES_TABBED) * 3);
3516   else
3517     xl = (clist->column[ctree->tree_column].area.x + clist->hoffset +
3518           (tree_row->level - 1) * ctree->tree_indent +
3519           (ctree->line_style == GTK_CTREE_LINES_TABBED) * 3);
3520
3521   return (x >= xl && x <= xl + PM_SIZE && y >= yu && y <= yu + PM_SIZE);
3522 }
3523
3524 /***********************************************************
3525  ***********************************************************
3526  ***                  Public interface                   ***
3527  ***********************************************************
3528  ***********************************************************/
3529
3530
3531 /***********************************************************
3532  *           Creation, insertion, deletion                 *
3533  ***********************************************************/
3534
3535 void
3536 gtk_ctree_construct (GtkCTree    *ctree,
3537                      gint         columns,
3538                      gint         tree_column,
3539                      gchar       *titles[])
3540 {
3541   GtkCList *clist;
3542
3543   g_return_if_fail (ctree != NULL);
3544   g_return_if_fail (GTK_IS_CTREE (ctree));
3545   g_return_if_fail (GTK_OBJECT_CONSTRUCTED (ctree) == FALSE);
3546
3547   clist = GTK_CLIST (ctree);
3548
3549   clist->row_mem_chunk = g_mem_chunk_new ("ctree row mem chunk",
3550                                           sizeof (GtkCTreeRow),
3551                                           sizeof (GtkCTreeRow)
3552                                           * CLIST_OPTIMUM_SIZE,
3553                                           G_ALLOC_AND_FREE);
3554
3555   clist->cell_mem_chunk = g_mem_chunk_new ("ctree cell mem chunk",
3556                                            sizeof (GtkCell) * columns,
3557                                            sizeof (GtkCell) * columns
3558                                            * CLIST_OPTIMUM_SIZE,
3559                                            G_ALLOC_AND_FREE);
3560
3561   ctree->tree_column = tree_column;
3562
3563   gtk_clist_construct (clist, columns, titles);
3564 }
3565
3566 GtkWidget *
3567 gtk_ctree_new_with_titles (gint         columns,
3568                            gint         tree_column,
3569                            gchar       *titles[])
3570 {
3571   GtkWidget *widget;
3572
3573   g_return_val_if_fail (columns > 0, NULL);
3574   g_return_val_if_fail (tree_column >= 0 && tree_column < columns, NULL);
3575
3576   widget = gtk_type_new (GTK_TYPE_CTREE);
3577   gtk_ctree_construct (GTK_CTREE (widget), columns, tree_column, titles);
3578
3579   return widget;
3580 }
3581
3582 GtkWidget *
3583 gtk_ctree_new (gint columns,
3584                gint tree_column)
3585 {
3586   return gtk_ctree_new_with_titles (columns, tree_column, NULL);
3587 }
3588
3589 static gint
3590 real_insert_row (GtkCList *clist,
3591                  gint      row,
3592                  gchar    *text[])
3593 {
3594   GtkCTreeNode *parent = NULL;
3595   GtkCTreeNode *sibling;
3596   GtkCTreeNode *node;
3597
3598   g_return_val_if_fail (clist != NULL, -1);
3599   g_return_val_if_fail (GTK_IS_CTREE (clist), -1);
3600
3601   sibling = GTK_CTREE_NODE (g_list_nth (clist->row_list, row));
3602   if (sibling)
3603     parent = GTK_CTREE_ROW (sibling)->parent;
3604
3605   node = gtk_ctree_insert_node (GTK_CTREE (clist), parent, sibling, text, 5,
3606                                 NULL, NULL, NULL, NULL, TRUE, FALSE);
3607
3608   if (GTK_CLIST_AUTO_SORT (clist) || !sibling)
3609     return g_list_position (clist->row_list, (GList *) node);
3610
3611   return row;
3612 }
3613
3614 GtkCTreeNode *
3615 gtk_ctree_insert_node (GtkCTree     *ctree,
3616                        GtkCTreeNode *parent,
3617                        GtkCTreeNode *sibling,
3618                        gchar        *text[],
3619                        guint8        spacing,
3620                        GdkPixmap    *pixmap_closed,
3621                        GdkBitmap    *mask_closed,
3622                        GdkPixmap    *pixmap_opened,
3623                        GdkBitmap    *mask_opened,
3624                        gboolean      is_leaf,
3625                        gboolean      expanded)
3626 {
3627   GtkCList *clist;
3628   GtkCTreeRow *new_row;
3629   GtkCTreeNode *node;
3630   GList *list;
3631   gint i;
3632
3633   g_return_val_if_fail (ctree != NULL, NULL);
3634   g_return_val_if_fail (GTK_IS_CTREE (ctree), NULL);
3635   if (sibling)
3636     g_return_val_if_fail (GTK_CTREE_ROW (sibling)->parent == parent, NULL);
3637
3638   if (parent && GTK_CTREE_ROW (parent)->is_leaf)
3639     return NULL;
3640
3641   clist = GTK_CLIST (ctree);
3642
3643   /* create the row */
3644   new_row = row_new (ctree);
3645   list = g_list_alloc ();
3646   list->data = new_row;
3647   node = GTK_CTREE_NODE (list);
3648
3649   if (text)
3650     for (i = 0; i < clist->columns; i++)
3651       if (text[i] && i != ctree->tree_column)
3652         GTK_CLIST_CLASS_FW (clist)->set_cell_contents
3653           (clist, &(new_row->row), i, GTK_CELL_TEXT, text[i], 0, NULL, NULL);
3654
3655   set_node_info (ctree, node, text ?
3656                  text[ctree->tree_column] : NULL, spacing, pixmap_closed,
3657                  mask_closed, pixmap_opened, mask_opened, is_leaf, expanded);
3658
3659   /* sorted insertion */
3660   if (GTK_CLIST_AUTO_SORT (clist))
3661     {
3662       if (parent)
3663         sibling = GTK_CTREE_ROW (parent)->children;
3664       else
3665         sibling = GTK_CTREE_NODE (clist->row_list);
3666
3667       while (sibling && clist->compare
3668              (clist, GTK_CTREE_ROW (node), GTK_CTREE_ROW (sibling)) > 0)
3669         sibling = GTK_CTREE_ROW (sibling)->sibling;
3670     }
3671
3672   gtk_ctree_link (ctree, node, parent, sibling, TRUE);
3673
3674   if (text && !GTK_CLIST_AUTO_RESIZE_BLOCKED (clist) &&
3675       gtk_ctree_is_viewable (ctree, node))
3676     {
3677       for (i = 0; i < clist->columns; i++)
3678         if (clist->column[i].auto_resize)
3679           column_auto_resize (clist, &(new_row->row), i, 0);
3680     }
3681
3682   CLIST_REFRESH (clist);
3683
3684   return node;
3685 }
3686
3687 GtkCTreeNode *
3688 gtk_ctree_insert_gnode (GtkCTree          *ctree,
3689                         GtkCTreeNode      *parent,
3690                         GtkCTreeNode      *sibling,
3691                         GNode             *gnode,
3692                         GtkCTreeGNodeFunc  func,
3693                         gpointer           data)
3694 {
3695   GtkCList *clist;
3696   GtkCTreeNode *cnode = NULL;
3697   GtkCTreeNode *child = NULL;
3698   GtkCTreeNode *new_child;
3699   GList *list;
3700   GNode *work;
3701   guint depth = 1;
3702
3703   g_return_val_if_fail (ctree != NULL, NULL);
3704   g_return_val_if_fail (GTK_IS_CTREE (ctree), NULL);
3705   g_return_val_if_fail (gnode != NULL, NULL);
3706   g_return_val_if_fail (func != NULL, NULL);
3707   if (sibling)
3708     g_return_val_if_fail (GTK_CTREE_ROW (sibling)->parent == parent, NULL);
3709
3710   clist = GTK_CLIST (ctree);
3711
3712   if (parent)
3713     depth = GTK_CTREE_ROW (parent)->level + 1;
3714
3715   list = g_list_alloc ();
3716   list->data = row_new (ctree);
3717   cnode = GTK_CTREE_NODE (list);
3718
3719   gtk_clist_freeze (clist);
3720
3721   set_node_info (ctree, cnode, "", 0, NULL, NULL, NULL, NULL, TRUE, FALSE);
3722
3723   if (!func (ctree, depth, gnode, cnode, data))
3724     {
3725       tree_delete_row (ctree, cnode, NULL);
3726       return NULL;
3727     }
3728
3729   if (GTK_CLIST_AUTO_SORT (clist))
3730     {
3731       if (parent)
3732         sibling = GTK_CTREE_ROW (parent)->children;
3733       else
3734         sibling = GTK_CTREE_NODE (clist->row_list);
3735
3736       while (sibling && clist->compare
3737              (clist, GTK_CTREE_ROW (cnode), GTK_CTREE_ROW (sibling)) > 0)
3738         sibling = GTK_CTREE_ROW (sibling)->sibling;
3739     }
3740
3741   gtk_ctree_link (ctree, cnode, parent, sibling, TRUE);
3742
3743   for (work = g_node_last_child (gnode); work; work = work->prev)
3744     {
3745       new_child = gtk_ctree_insert_gnode (ctree, cnode, child,
3746                                           work, func, data);
3747       if (new_child)
3748         child = new_child;
3749     }
3750
3751   gtk_clist_thaw (clist);
3752
3753   return cnode;
3754 }
3755
3756 GNode *
3757 gtk_ctree_export_to_gnode (GtkCTree          *ctree,
3758                            GNode             *parent,
3759                            GNode             *sibling,
3760                            GtkCTreeNode      *node,
3761                            GtkCTreeGNodeFunc  func,
3762                            gpointer           data)
3763 {
3764   GtkCTreeNode *work;
3765   GNode *gnode;
3766   gint depth;
3767
3768   g_return_val_if_fail (ctree != NULL, NULL);
3769   g_return_val_if_fail (GTK_IS_CTREE (ctree), NULL);
3770   g_return_val_if_fail (node != NULL, NULL);
3771   g_return_val_if_fail (func != NULL, NULL);
3772   if (sibling)
3773     {
3774       g_return_val_if_fail (parent != NULL, NULL);
3775       g_return_val_if_fail (sibling->parent == parent, NULL);
3776     }
3777
3778   gnode = g_node_new (NULL);
3779   depth = g_node_depth (parent) + 1;
3780
3781   if (!func (ctree, depth, gnode, node, data))
3782     {
3783       g_node_destroy (gnode);
3784       return NULL;
3785     }
3786
3787   if (parent)
3788     g_node_insert_before (parent, sibling, gnode);
3789
3790   if (!GTK_CTREE_ROW (node)->is_leaf)
3791     {
3792       GNode *new_sibling = NULL;
3793
3794       for (work = GTK_CTREE_ROW (node)->children; work;
3795            work = GTK_CTREE_ROW (work)->sibling)
3796         new_sibling = gtk_ctree_export_to_gnode (ctree, gnode, new_sibling,
3797                                                  work, func, data);
3798
3799       g_node_reverse_children (gnode);
3800     }
3801
3802   return gnode;
3803 }
3804
3805 static void
3806 real_remove_row (GtkCList *clist,
3807                  gint      row)
3808 {
3809   GtkCTreeNode *node;
3810
3811   g_return_if_fail (clist != NULL);
3812   g_return_if_fail (GTK_IS_CTREE (clist));
3813
3814   node = GTK_CTREE_NODE (g_list_nth (clist->row_list, row));
3815
3816   if (node)
3817     gtk_ctree_remove_node (GTK_CTREE (clist), node);
3818 }
3819
3820 void
3821 gtk_ctree_remove_node (GtkCTree     *ctree,
3822                        GtkCTreeNode *node)
3823 {
3824   GtkCList *clist;
3825
3826   g_return_if_fail (ctree != NULL);
3827   g_return_if_fail (GTK_IS_CTREE (ctree));
3828
3829   clist = GTK_CLIST (ctree);
3830
3831   gtk_clist_freeze (clist);
3832
3833   if (node)
3834     {
3835       gboolean visible;
3836
3837       visible = gtk_ctree_is_viewable (ctree, node);
3838       gtk_ctree_unlink (ctree, node, TRUE);
3839       gtk_ctree_post_recursive (ctree, node, GTK_CTREE_FUNC (tree_delete),
3840                                 NULL);
3841       if ((clist->selection_mode == GTK_SELECTION_BROWSE ||
3842            clist->selection_mode == GTK_SELECTION_EXTENDED) &&
3843           !clist->selection && clist->focus_row >= 0)
3844         gtk_clist_select_row (clist, clist->focus_row, -1);
3845
3846       auto_resize_columns (clist);
3847     }
3848   else
3849     gtk_clist_clear (clist);
3850
3851   gtk_clist_thaw (clist);
3852 }
3853
3854 static void
3855 real_clear (GtkCList *clist)
3856 {
3857   GtkCTree *ctree;
3858   GtkCTreeNode *work;
3859   GtkCTreeNode *ptr;
3860
3861   g_return_if_fail (clist != NULL);
3862   g_return_if_fail (GTK_IS_CTREE (clist));
3863
3864   ctree = GTK_CTREE (clist);
3865
3866   /* remove all rows */
3867   work = GTK_CTREE_NODE (clist->row_list);
3868   clist->row_list = NULL;
3869   clist->row_list_end = NULL;
3870
3871   GTK_CLIST_SET_FLAG (clist, CLIST_AUTO_RESIZE_BLOCKED);
3872   while (work)
3873     {
3874       ptr = work;
3875       work = GTK_CTREE_ROW (work)->sibling;
3876       gtk_ctree_post_recursive (ctree, ptr, GTK_CTREE_FUNC (tree_delete_row),
3877                                 NULL);
3878     }
3879   GTK_CLIST_UNSET_FLAG (clist, CLIST_AUTO_RESIZE_BLOCKED);
3880
3881   parent_class->clear (clist);
3882 }
3883
3884
3885 /***********************************************************
3886  *  Generic recursive functions, querying / finding tree   *
3887  *  information                                            *
3888  ***********************************************************/
3889
3890
3891 void
3892 gtk_ctree_post_recursive (GtkCTree     *ctree,
3893                           GtkCTreeNode *node,
3894                           GtkCTreeFunc  func,
3895                           gpointer      data)
3896 {
3897   GtkCTreeNode *work;
3898   GtkCTreeNode *tmp;
3899
3900   g_return_if_fail (ctree != NULL);
3901   g_return_if_fail (GTK_IS_CTREE (ctree));
3902   g_return_if_fail (func != NULL);
3903
3904   if (node)
3905     work = GTK_CTREE_ROW (node)->children;
3906   else
3907     work = GTK_CTREE_NODE (GTK_CLIST (ctree)->row_list);
3908
3909   while (work)
3910     {
3911       tmp = GTK_CTREE_ROW (work)->sibling;
3912       gtk_ctree_post_recursive (ctree, work, func, data);
3913       work = tmp;
3914     }
3915
3916   if (node)
3917     func (ctree, node, data);
3918 }
3919
3920 void
3921 gtk_ctree_post_recursive_to_depth (GtkCTree     *ctree,
3922                                    GtkCTreeNode *node,
3923                                    gint          depth,
3924                                    GtkCTreeFunc  func,
3925                                    gpointer      data)
3926 {
3927   GtkCTreeNode *work;
3928   GtkCTreeNode *tmp;
3929
3930   g_return_if_fail (ctree != NULL);
3931   g_return_if_fail (GTK_IS_CTREE (ctree));
3932   g_return_if_fail (func != NULL);
3933
3934   if (depth < 0)
3935     {
3936       gtk_ctree_post_recursive (ctree, node, func, data);
3937       return;
3938     }
3939
3940   if (node)
3941     work = GTK_CTREE_ROW (node)->children;
3942   else
3943     work = GTK_CTREE_NODE (GTK_CLIST (ctree)->row_list);
3944
3945   if (work && GTK_CTREE_ROW (work)->level <= depth)
3946     {
3947       while (work)
3948         {
3949           tmp = GTK_CTREE_ROW (work)->sibling;
3950           gtk_ctree_post_recursive_to_depth (ctree, work, depth, func, data);
3951           work = tmp;
3952         }
3953     }
3954
3955   if (node && GTK_CTREE_ROW (node)->level <= depth)
3956     func (ctree, node, data);
3957 }
3958
3959 void
3960 gtk_ctree_pre_recursive (GtkCTree     *ctree,
3961                          GtkCTreeNode *node,
3962                          GtkCTreeFunc  func,
3963                          gpointer      data)
3964 {
3965   GtkCTreeNode *work;
3966   GtkCTreeNode *tmp;
3967
3968   g_return_if_fail (ctree != NULL);
3969   g_return_if_fail (GTK_IS_CTREE (ctree));
3970   g_return_if_fail (func != NULL);
3971
3972   if (node)
3973     {
3974       work = GTK_CTREE_ROW (node)->children;
3975       func (ctree, node, data);
3976     }
3977   else
3978     work = GTK_CTREE_NODE (GTK_CLIST (ctree)->row_list);
3979
3980   while (work)
3981     {
3982       tmp = GTK_CTREE_ROW (work)->sibling;
3983       gtk_ctree_pre_recursive (ctree, work, func, data);
3984       work = tmp;
3985     }
3986 }
3987
3988 void
3989 gtk_ctree_pre_recursive_to_depth (GtkCTree     *ctree,
3990                                   GtkCTreeNode *node,
3991                                   gint          depth,
3992                                   GtkCTreeFunc  func,
3993                                   gpointer      data)
3994 {
3995   GtkCTreeNode *work;
3996   GtkCTreeNode *tmp;
3997
3998   g_return_if_fail (ctree != NULL);
3999   g_return_if_fail (GTK_IS_CTREE (ctree));
4000   g_return_if_fail (func != NULL);
4001
4002   if (depth < 0)
4003     {
4004       gtk_ctree_pre_recursive (ctree, node, func, data);
4005       return;
4006     }
4007
4008   if (node)
4009     {
4010       work = GTK_CTREE_ROW (node)->children;
4011       if (GTK_CTREE_ROW (node)->level <= depth)
4012         func (ctree, node, data);
4013     }
4014   else
4015     work = GTK_CTREE_NODE (GTK_CLIST (ctree)->row_list);
4016
4017   if (work && GTK_CTREE_ROW (work)->level <= depth)
4018     {
4019       while (work)
4020         {
4021           tmp = GTK_CTREE_ROW (work)->sibling;
4022           gtk_ctree_pre_recursive_to_depth (ctree, work, depth, func, data);
4023           work = tmp;
4024         }
4025     }
4026 }
4027
4028 gboolean
4029 gtk_ctree_is_viewable (GtkCTree     *ctree,
4030                        GtkCTreeNode *node)
4031 {
4032   GtkCTreeRow *work;
4033
4034   g_return_val_if_fail (ctree != NULL, FALSE);
4035   g_return_val_if_fail (GTK_IS_CTREE (ctree), FALSE);
4036   g_return_val_if_fail (node != NULL, FALSE);
4037
4038   work = GTK_CTREE_ROW (node);
4039
4040   while (work->parent && GTK_CTREE_ROW (work->parent)->expanded)
4041     work = GTK_CTREE_ROW (work->parent);
4042
4043   if (!work->parent)
4044     return TRUE;
4045
4046   return FALSE;
4047 }
4048
4049 GtkCTreeNode *
4050 gtk_ctree_last (GtkCTree     *ctree,
4051                 GtkCTreeNode *node)
4052 {
4053   g_return_val_if_fail (ctree != NULL, NULL);
4054   g_return_val_if_fail (GTK_IS_CTREE (ctree), NULL);
4055
4056   if (!node)
4057     return NULL;
4058
4059   while (GTK_CTREE_ROW (node)->sibling)
4060     node = GTK_CTREE_ROW (node)->sibling;
4061
4062   if (GTK_CTREE_ROW (node)->children)
4063     return gtk_ctree_last (ctree, GTK_CTREE_ROW (node)->children);
4064
4065   return node;
4066 }
4067
4068 GtkCTreeNode *
4069 gtk_ctree_find_node_ptr (GtkCTree    *ctree,
4070                          GtkCTreeRow *ctree_row)
4071 {
4072   GtkCTreeNode *node;
4073
4074   g_return_val_if_fail (ctree != NULL, FALSE);
4075   g_return_val_if_fail (GTK_IS_CTREE (ctree), FALSE);
4076   g_return_val_if_fail (ctree_row != NULL, FALSE);
4077
4078   if (ctree_row->parent)
4079     node = GTK_CTREE_ROW(ctree_row->parent)->children;
4080   else
4081     node = GTK_CTREE_NODE (GTK_CLIST (ctree)->row_list);
4082
4083   while (GTK_CTREE_ROW (node) != ctree_row)
4084     node = GTK_CTREE_ROW (node)->sibling;
4085
4086   return node;
4087 }
4088
4089 GtkCTreeNode *
4090 gtk_ctree_node_nth (GtkCTree *ctree,
4091                     guint     row)
4092 {
4093   g_return_val_if_fail (ctree != NULL, NULL);
4094   g_return_val_if_fail (GTK_IS_CTREE (ctree), NULL);
4095
4096   if ((row < 0) || (row >= GTK_CLIST(ctree)->rows))
4097     return NULL;
4098
4099   return GTK_CTREE_NODE (g_list_nth (GTK_CLIST (ctree)->row_list, row));
4100 }
4101
4102 gboolean
4103 gtk_ctree_find (GtkCTree     *ctree,
4104                 GtkCTreeNode *node,
4105                 GtkCTreeNode *child)
4106 {
4107   if (!child)
4108     return FALSE;
4109
4110   if (!node)
4111     node = GTK_CTREE_NODE (GTK_CLIST (ctree)->row_list);
4112
4113   while (node)
4114     {
4115       if (node == child)
4116         return TRUE;
4117       if (GTK_CTREE_ROW (node)->children)
4118         {
4119           if (gtk_ctree_find (ctree, GTK_CTREE_ROW (node)->children, child))
4120             return TRUE;
4121         }
4122       node = GTK_CTREE_ROW (node)->sibling;
4123     }
4124   return FALSE;
4125 }
4126
4127 gboolean
4128 gtk_ctree_is_ancestor (GtkCTree     *ctree,
4129                        GtkCTreeNode *node,
4130                        GtkCTreeNode *child)
4131 {
4132   g_return_val_if_fail (node != NULL, FALSE);
4133
4134   return gtk_ctree_find (ctree, GTK_CTREE_ROW (node)->children, child);
4135 }
4136
4137 GtkCTreeNode *
4138 gtk_ctree_find_by_row_data (GtkCTree     *ctree,
4139                             GtkCTreeNode *node,
4140                             gpointer      data)
4141 {
4142   GtkCTreeNode *work;
4143
4144   if (!node)
4145     node = GTK_CTREE_NODE (GTK_CLIST (ctree)->row_list);
4146
4147   while (node)
4148     {
4149       if (GTK_CTREE_ROW (node)->row.data == data)
4150         return node;
4151       if (GTK_CTREE_ROW (node)->children &&
4152           (work = gtk_ctree_find_by_row_data
4153            (ctree, GTK_CTREE_ROW (node)->children, data)))
4154         return work;
4155       node = GTK_CTREE_ROW (node)->sibling;
4156     }
4157   return NULL;
4158 }
4159
4160 GList *
4161 gtk_ctree_find_all_by_row_data (GtkCTree     *ctree,
4162                                 GtkCTreeNode *node,
4163                                 gpointer      data)
4164 {
4165   GList *list = NULL;
4166
4167   g_return_val_if_fail (ctree != NULL, NULL);
4168   g_return_val_if_fail (GTK_IS_CTREE (ctree), NULL);
4169
4170   /* if node == NULL then look in the whole tree */
4171   if (!node)
4172     node = GTK_CTREE_NODE (GTK_CLIST (ctree)->row_list);
4173
4174   while (node)
4175     {
4176       if (GTK_CTREE_ROW (node)->row.data == data)
4177         list = g_list_append (list, node);
4178
4179       if (GTK_CTREE_ROW (node)->children)
4180         {
4181           GList *sub_list;
4182
4183           sub_list = gtk_ctree_find_all_by_row_data (ctree,
4184                                                      GTK_CTREE_ROW
4185                                                      (node)->children,
4186                                                      data);
4187           list = g_list_concat (list, sub_list);
4188         }
4189       node = GTK_CTREE_ROW (node)->sibling;
4190     }
4191   return list;
4192 }
4193
4194 GtkCTreeNode *
4195 gtk_ctree_find_by_row_data_custom (GtkCTree     *ctree,
4196                                    GtkCTreeNode *node,
4197                                    gpointer      data,
4198                                    GCompareFunc  func)
4199 {
4200   GtkCTreeNode *work;
4201
4202   g_return_val_if_fail (func != NULL, NULL);
4203
4204   if (!node)
4205     node = GTK_CTREE_NODE (GTK_CLIST (ctree)->row_list);
4206
4207   while (node)
4208     {
4209       if (!func (GTK_CTREE_ROW (node)->row.data, data))
4210         return node;
4211       if (GTK_CTREE_ROW (node)->children &&
4212           (work = gtk_ctree_find_by_row_data_custom
4213            (ctree, GTK_CTREE_ROW (node)->children, data, func)))
4214         return work;
4215       node = GTK_CTREE_ROW (node)->sibling;
4216     }
4217   return NULL;
4218 }
4219
4220 GList *
4221 gtk_ctree_find_all_by_row_data_custom (GtkCTree     *ctree,
4222                                        GtkCTreeNode *node,
4223                                        gpointer      data,
4224                                        GCompareFunc  func)
4225 {
4226   GList *list = NULL;
4227
4228   g_return_val_if_fail (ctree != NULL, NULL);
4229   g_return_val_if_fail (GTK_IS_CTREE (ctree), NULL);
4230   g_return_val_if_fail (func != NULL, NULL);
4231
4232   /* if node == NULL then look in the whole tree */
4233   if (!node)
4234     node = GTK_CTREE_NODE (GTK_CLIST (ctree)->row_list);
4235
4236   while (node)
4237     {
4238       if (!func (GTK_CTREE_ROW (node)->row.data, data))
4239         list = g_list_append (list, node);
4240
4241       if (GTK_CTREE_ROW (node)->children)
4242         {
4243           GList *sub_list;
4244
4245           sub_list = gtk_ctree_find_all_by_row_data_custom (ctree,
4246                                                             GTK_CTREE_ROW
4247                                                             (node)->children,
4248                                                             data,
4249                                                             func);
4250           list = g_list_concat (list, sub_list);
4251         }
4252       node = GTK_CTREE_ROW (node)->sibling;
4253     }
4254   return list;
4255 }
4256
4257 gboolean
4258 gtk_ctree_is_hot_spot (GtkCTree *ctree,
4259                        gint      x,
4260                        gint      y)
4261 {
4262   GtkCTreeNode *node;
4263   gint column;
4264   gint row;
4265
4266   g_return_val_if_fail (ctree != NULL, FALSE);
4267   g_return_val_if_fail (GTK_IS_CTREE (ctree), FALSE);
4268
4269   if (gtk_clist_get_selection_info (GTK_CLIST (ctree), x, y, &row, &column))
4270     if ((node = GTK_CTREE_NODE(g_list_nth (GTK_CLIST (ctree)->row_list, row))))
4271       return ctree_is_hot_spot (ctree, node, row, x, y);
4272
4273   return FALSE;
4274 }
4275
4276
4277 /***********************************************************
4278  *   Tree signals : move, expand, collapse, (un)select     *
4279  ***********************************************************/
4280
4281
4282 void
4283 gtk_ctree_move (GtkCTree     *ctree,
4284                 GtkCTreeNode *node,
4285                 GtkCTreeNode *new_parent,
4286                 GtkCTreeNode *new_sibling)
4287 {
4288   g_return_if_fail (ctree != NULL);
4289   g_return_if_fail (GTK_IS_CTREE (ctree));
4290   g_return_if_fail (node != NULL);
4291
4292   gtk_signal_emit (GTK_OBJECT (ctree), ctree_signals[TREE_MOVE], node,
4293                    new_parent, new_sibling);
4294 }
4295
4296 void
4297 gtk_ctree_expand (GtkCTree     *ctree,
4298                   GtkCTreeNode *node)
4299 {
4300   g_return_if_fail (ctree != NULL);
4301   g_return_if_fail (GTK_IS_CTREE (ctree));
4302   g_return_if_fail (node != NULL);
4303
4304   if (GTK_CTREE_ROW (node)->is_leaf)
4305     return;
4306
4307   gtk_signal_emit (GTK_OBJECT (ctree), ctree_signals[TREE_EXPAND], node);
4308 }
4309
4310 void
4311 gtk_ctree_expand_recursive (GtkCTree     *ctree,
4312                             GtkCTreeNode *node)
4313 {
4314   GtkCList *clist;
4315   gboolean thaw = FALSE;
4316
4317   g_return_if_fail (ctree != NULL);
4318   g_return_if_fail (GTK_IS_CTREE (ctree));
4319
4320   clist = GTK_CLIST (ctree);
4321
4322   if (node && GTK_CTREE_ROW (node)->is_leaf)
4323     return;
4324
4325   if (CLIST_UNFROZEN (clist) && (!node || gtk_ctree_is_viewable (ctree, node)))
4326     {
4327       gtk_clist_freeze (clist);
4328       thaw = TRUE;
4329     }
4330
4331   gtk_ctree_post_recursive (ctree, node, GTK_CTREE_FUNC (tree_expand), NULL);
4332
4333   if (thaw)
4334     gtk_clist_thaw (clist);
4335 }
4336
4337 void
4338 gtk_ctree_expand_to_depth (GtkCTree     *ctree,
4339                            GtkCTreeNode *node,
4340                            gint          depth)
4341 {
4342   GtkCList *clist;
4343   gboolean thaw = FALSE;
4344
4345   g_return_if_fail (ctree != NULL);
4346   g_return_if_fail (GTK_IS_CTREE (ctree));
4347
4348   clist = GTK_CLIST (ctree);
4349
4350   if (node && GTK_CTREE_ROW (node)->is_leaf)
4351     return;
4352
4353   if (CLIST_UNFROZEN (clist) && (!node || gtk_ctree_is_viewable (ctree, node)))
4354     {
4355       gtk_clist_freeze (clist);
4356       thaw = TRUE;
4357     }
4358
4359   gtk_ctree_post_recursive_to_depth (ctree, node, depth,
4360                                      GTK_CTREE_FUNC (tree_expand), NULL);
4361
4362   if (thaw)
4363     gtk_clist_thaw (clist);
4364 }
4365
4366 void
4367 gtk_ctree_collapse (GtkCTree     *ctree,
4368                     GtkCTreeNode *node)
4369 {
4370   g_return_if_fail (ctree != NULL);
4371   g_return_if_fail (GTK_IS_CTREE (ctree));
4372   g_return_if_fail (node != NULL);
4373
4374   if (GTK_CTREE_ROW (node)->is_leaf)
4375     return;
4376
4377   gtk_signal_emit (GTK_OBJECT (ctree), ctree_signals[TREE_COLLAPSE], node);
4378 }
4379
4380 void
4381 gtk_ctree_collapse_recursive (GtkCTree     *ctree,
4382                               GtkCTreeNode *node)
4383 {
4384   GtkCList *clist;
4385   gboolean thaw = FALSE;
4386   gint i;
4387
4388   g_return_if_fail (ctree != NULL);
4389   g_return_if_fail (GTK_IS_CTREE (ctree));
4390
4391   if (node && GTK_CTREE_ROW (node)->is_leaf)
4392     return;
4393
4394   clist = GTK_CLIST (ctree);
4395
4396   if (CLIST_UNFROZEN (clist) && (!node || gtk_ctree_is_viewable (ctree, node)))
4397     {
4398       gtk_clist_freeze (clist);
4399       thaw = TRUE;
4400     }
4401
4402   GTK_CLIST_SET_FLAG (clist, CLIST_AUTO_RESIZE_BLOCKED);
4403   gtk_ctree_post_recursive (ctree, node, GTK_CTREE_FUNC (tree_collapse), NULL);
4404   GTK_CLIST_UNSET_FLAG (clist, CLIST_AUTO_RESIZE_BLOCKED);
4405   for (i = 0; i < clist->columns; i++)
4406     if (clist->column[i].auto_resize)
4407       gtk_clist_set_column_width (clist, i,
4408                                   gtk_clist_optimal_column_width (clist, i));
4409
4410   if (thaw)
4411     gtk_clist_thaw (clist);
4412 }
4413
4414 void
4415 gtk_ctree_collapse_to_depth (GtkCTree     *ctree,
4416                              GtkCTreeNode *node,
4417                              gint          depth)
4418 {
4419   GtkCList *clist;
4420   gboolean thaw = FALSE;
4421   gint i;
4422
4423   g_return_if_fail (ctree != NULL);
4424   g_return_if_fail (GTK_IS_CTREE (ctree));
4425
4426   if (node && GTK_CTREE_ROW (node)->is_leaf)
4427     return;
4428
4429   clist = GTK_CLIST (ctree);
4430
4431   if (CLIST_UNFROZEN (clist) && (!node || gtk_ctree_is_viewable (ctree, node)))
4432     {
4433       gtk_clist_freeze (clist);
4434       thaw = TRUE;
4435     }
4436
4437   GTK_CLIST_SET_FLAG (clist, CLIST_AUTO_RESIZE_BLOCKED);
4438   gtk_ctree_post_recursive_to_depth (ctree, node, depth,
4439                                      GTK_CTREE_FUNC (tree_collapse_to_depth),
4440                                      GINT_TO_POINTER (depth));
4441   GTK_CLIST_UNSET_FLAG (clist, CLIST_AUTO_RESIZE_BLOCKED);
4442   for (i = 0; i < clist->columns; i++)
4443     if (clist->column[i].auto_resize)
4444       gtk_clist_set_column_width (clist, i,
4445                                   gtk_clist_optimal_column_width (clist, i));
4446
4447   if (thaw)
4448     gtk_clist_thaw (clist);
4449 }
4450
4451 void
4452 gtk_ctree_toggle_expansion (GtkCTree     *ctree,
4453                             GtkCTreeNode *node)
4454 {
4455   g_return_if_fail (ctree != NULL);
4456   g_return_if_fail (GTK_IS_CTREE (ctree));
4457   g_return_if_fail (node != NULL);
4458
4459   if (GTK_CTREE_ROW (node)->is_leaf)
4460     return;
4461
4462   tree_toggle_expansion (ctree, node, NULL);
4463 }
4464
4465 void
4466 gtk_ctree_toggle_expansion_recursive (GtkCTree     *ctree,
4467                                       GtkCTreeNode *node)
4468 {
4469   GtkCList *clist;
4470   gboolean thaw = FALSE;
4471
4472   g_return_if_fail (ctree != NULL);
4473   g_return_if_fail (GTK_IS_CTREE (ctree));
4474
4475   if (node && GTK_CTREE_ROW (node)->is_leaf)
4476     return;
4477
4478   clist = GTK_CLIST (ctree);
4479
4480   if (CLIST_UNFROZEN (clist) && (!node || gtk_ctree_is_viewable (ctree, node)))
4481     {
4482       gtk_clist_freeze (clist);
4483       thaw = TRUE;
4484     }
4485
4486   gtk_ctree_post_recursive (ctree, node,
4487                             GTK_CTREE_FUNC (tree_toggle_expansion), NULL);
4488
4489   if (thaw)
4490     gtk_clist_thaw (clist);
4491 }
4492
4493 void
4494 gtk_ctree_select (GtkCTree     *ctree,
4495                   GtkCTreeNode *node)
4496 {
4497   g_return_if_fail (ctree != NULL);
4498   g_return_if_fail (GTK_IS_CTREE (ctree));
4499   g_return_if_fail (node != NULL);
4500
4501   if (GTK_CTREE_ROW (node)->row.selectable)
4502     gtk_signal_emit (GTK_OBJECT (ctree), ctree_signals[TREE_SELECT_ROW],
4503                      node, -1);
4504 }
4505
4506 void
4507 gtk_ctree_unselect (GtkCTree     *ctree,
4508                     GtkCTreeNode *node)
4509 {
4510   g_return_if_fail (ctree != NULL);
4511   g_return_if_fail (GTK_IS_CTREE (ctree));
4512   g_return_if_fail (node != NULL);
4513
4514   gtk_signal_emit (GTK_OBJECT (ctree), ctree_signals[TREE_UNSELECT_ROW],
4515                    node, -1);
4516 }
4517
4518 void
4519 gtk_ctree_select_recursive (GtkCTree     *ctree,
4520                             GtkCTreeNode *node)
4521 {
4522   gtk_ctree_real_select_recursive (ctree, node, TRUE);
4523 }
4524
4525 void
4526 gtk_ctree_unselect_recursive (GtkCTree     *ctree,
4527                               GtkCTreeNode *node)
4528 {
4529   gtk_ctree_real_select_recursive (ctree, node, FALSE);
4530 }
4531
4532 void
4533 gtk_ctree_real_select_recursive (GtkCTree     *ctree,
4534                                  GtkCTreeNode *node,
4535                                  gint          state)
4536 {
4537   GtkCList *clist;
4538   gboolean thaw = FALSE;
4539
4540   g_return_if_fail (ctree != NULL);
4541   g_return_if_fail (GTK_IS_CTREE (ctree));
4542
4543   clist = GTK_CLIST (ctree);
4544
4545   if ((state &&
4546        (clist->selection_mode ==  GTK_SELECTION_BROWSE ||
4547         clist->selection_mode == GTK_SELECTION_SINGLE)) ||
4548       (!state && clist->selection_mode ==  GTK_SELECTION_BROWSE))
4549     return;
4550
4551   if (CLIST_UNFROZEN (clist) && (!node || gtk_ctree_is_viewable (ctree, node)))
4552     {
4553       gtk_clist_freeze (clist);
4554       thaw = TRUE;
4555     }
4556
4557   if (clist->selection_mode == GTK_SELECTION_EXTENDED)
4558     {
4559       if (clist->anchor != -1)
4560         GTK_CLIST_CLASS_FW (clist)->resync_selection (clist, NULL);
4561
4562       g_list_free (clist->undo_selection);
4563       g_list_free (clist->undo_unselection);
4564       clist->undo_selection = NULL;
4565       clist->undo_unselection = NULL;
4566     }
4567
4568   if (state)
4569     gtk_ctree_post_recursive (ctree, node,
4570                               GTK_CTREE_FUNC (tree_select), NULL);
4571   else
4572     gtk_ctree_post_recursive (ctree, node,
4573                               GTK_CTREE_FUNC (tree_unselect), NULL);
4574
4575   if (thaw)
4576     gtk_clist_thaw (clist);
4577 }
4578
4579
4580 /***********************************************************
4581  *           Analogons of GtkCList functions               *
4582  ***********************************************************/
4583
4584
4585 void
4586 gtk_ctree_node_set_text (GtkCTree     *ctree,
4587                          GtkCTreeNode *node,
4588                          gint          column,
4589                          const gchar  *text)
4590 {
4591   GtkCList *clist;
4592
4593   g_return_if_fail (ctree != NULL);
4594   g_return_if_fail (GTK_IS_CTREE (ctree));
4595   g_return_if_fail (node != NULL);
4596
4597   if (column < 0 || column >= GTK_CLIST (ctree)->columns)
4598     return;
4599
4600   clist = GTK_CLIST (ctree);
4601
4602   GTK_CLIST_CLASS_FW (clist)->set_cell_contents
4603     (clist, &(GTK_CTREE_ROW(node)->row), column, GTK_CELL_TEXT,
4604      text, 0, NULL, NULL);
4605
4606   tree_draw_node (ctree, node);
4607 }
4608
4609 void
4610 gtk_ctree_node_set_pixmap (GtkCTree     *ctree,
4611                            GtkCTreeNode *node,
4612                            gint          column,
4613                            GdkPixmap    *pixmap,
4614                            GdkBitmap    *mask)
4615 {
4616   GtkCList *clist;
4617
4618   g_return_if_fail (ctree != NULL);
4619   g_return_if_fail (GTK_IS_CTREE (ctree));
4620   g_return_if_fail (node != NULL);
4621   g_return_if_fail (pixmap != NULL);
4622
4623   if (column < 0 || column >= GTK_CLIST (ctree)->columns)
4624     return;
4625
4626   gdk_pixmap_ref (pixmap);
4627   if (mask)
4628     gdk_pixmap_ref (mask);
4629
4630   clist = GTK_CLIST (ctree);
4631
4632   GTK_CLIST_CLASS_FW (clist)->set_cell_contents
4633     (clist, &(GTK_CTREE_ROW (node)->row), column, GTK_CELL_PIXMAP,
4634      NULL, 0, pixmap, mask);
4635
4636   tree_draw_node (ctree, node);
4637 }
4638
4639 void
4640 gtk_ctree_node_set_pixtext (GtkCTree     *ctree,
4641                             GtkCTreeNode *node,
4642                             gint          column,
4643                             const gchar  *text,
4644                             guint8        spacing,
4645                             GdkPixmap    *pixmap,
4646                             GdkBitmap    *mask)
4647 {
4648   GtkCList *clist;
4649
4650   g_return_if_fail (ctree != NULL);
4651   g_return_if_fail (GTK_IS_CTREE (ctree));
4652   g_return_if_fail (node != NULL);
4653   if (column != ctree->tree_column)
4654     g_return_if_fail (pixmap != NULL);
4655   if (column < 0 || column >= GTK_CLIST (ctree)->columns)
4656     return;
4657
4658   clist = GTK_CLIST (ctree);
4659
4660   if (pixmap)
4661     {
4662       gdk_pixmap_ref (pixmap);
4663       if (mask)
4664         gdk_pixmap_ref (mask);
4665     }
4666
4667   GTK_CLIST_CLASS_FW (clist)->set_cell_contents
4668     (clist, &(GTK_CTREE_ROW (node)->row), column, GTK_CELL_PIXTEXT,
4669      text, spacing, pixmap, mask);
4670
4671   tree_draw_node (ctree, node);
4672 }
4673
4674 void
4675 gtk_ctree_set_node_info (GtkCTree     *ctree,
4676                          GtkCTreeNode *node,
4677                          const gchar  *text,
4678                          guint8        spacing,
4679                          GdkPixmap    *pixmap_closed,
4680                          GdkBitmap    *mask_closed,
4681                          GdkPixmap    *pixmap_opened,
4682                          GdkBitmap    *mask_opened,
4683                          gboolean      is_leaf,
4684                          gboolean      expanded)
4685 {
4686   gboolean old_leaf;
4687   gboolean old_expanded;
4688
4689   g_return_if_fail (ctree != NULL);
4690   g_return_if_fail (GTK_IS_CTREE (ctree));
4691   g_return_if_fail (node != NULL);
4692
4693   old_leaf = GTK_CTREE_ROW (node)->is_leaf;
4694   old_expanded = GTK_CTREE_ROW (node)->expanded;
4695
4696   if (is_leaf && GTK_CTREE_ROW (node)->children)
4697     {
4698       GtkCTreeNode *work;
4699       GtkCTreeNode *ptr;
4700
4701       work = GTK_CTREE_ROW (node)->children;
4702       while (work)
4703         {
4704           ptr = work;
4705           work = GTK_CTREE_ROW(work)->sibling;
4706           gtk_ctree_remove_node (ctree, ptr);
4707         }
4708     }
4709
4710   set_node_info (ctree, node, text, spacing, pixmap_closed, mask_closed,
4711                  pixmap_opened, mask_opened, is_leaf, expanded);
4712
4713   if (!is_leaf && !old_leaf)
4714     {
4715       GTK_CTREE_ROW (node)->expanded = old_expanded;
4716       if (expanded && !old_expanded)
4717         gtk_ctree_expand (ctree, node);
4718       else if (!expanded && old_expanded)
4719         gtk_ctree_collapse (ctree, node);
4720     }
4721
4722   GTK_CTREE_ROW (node)->expanded = (is_leaf) ? FALSE : expanded;
4723
4724   tree_draw_node (ctree, node);
4725 }
4726
4727 void
4728 gtk_ctree_node_set_shift (GtkCTree     *ctree,
4729                           GtkCTreeNode *node,
4730                           gint          column,
4731                           gint          vertical,
4732                           gint          horizontal)
4733 {
4734   GtkCList *clist;
4735   GtkRequisition requisition;
4736   gboolean visible = FALSE;
4737
4738   g_return_if_fail (ctree != NULL);
4739   g_return_if_fail (GTK_IS_CTREE (ctree));
4740   g_return_if_fail (node != NULL);
4741
4742   if (column < 0 || column >= GTK_CLIST (ctree)->columns)
4743     return;
4744
4745   clist = GTK_CLIST (ctree);
4746
4747   if (clist->column[column].auto_resize &&
4748       !GTK_CLIST_AUTO_RESIZE_BLOCKED (clist))
4749     {
4750       visible = gtk_ctree_is_viewable (ctree, node);
4751       if (visible)
4752         GTK_CLIST_CLASS_FW (clist)->cell_size_request
4753           (clist, &GTK_CTREE_ROW (node)->row, column, &requisition);
4754     }
4755
4756   GTK_CTREE_ROW (node)->row.cell[column].vertical   = vertical;
4757   GTK_CTREE_ROW (node)->row.cell[column].horizontal = horizontal;
4758
4759   if (visible)
4760     column_auto_resize (clist, &GTK_CTREE_ROW (node)->row,
4761                         column, requisition.width);
4762
4763   tree_draw_node (ctree, node);
4764 }
4765
4766 static void
4767 remove_grab (GtkCList *clist)
4768 {
4769   if (gdk_pointer_is_grabbed () && GTK_WIDGET_HAS_GRAB (clist))
4770     {
4771       gtk_grab_remove (GTK_WIDGET (clist));
4772       gdk_pointer_ungrab (GDK_CURRENT_TIME);
4773     }
4774
4775   if (clist->htimer)
4776     {
4777       gtk_timeout_remove (clist->htimer);
4778       clist->htimer = 0;
4779     }
4780
4781   if (clist->vtimer)
4782     {
4783       gtk_timeout_remove (clist->vtimer);
4784       clist->vtimer = 0;
4785     }
4786 }
4787
4788 void
4789 gtk_ctree_node_set_selectable (GtkCTree     *ctree,
4790                                GtkCTreeNode *node,
4791                                gboolean      selectable)
4792 {
4793   g_return_if_fail (ctree != NULL);
4794   g_return_if_fail (GTK_IS_CTREE (ctree));
4795   g_return_if_fail (node != NULL);
4796
4797   if (selectable == GTK_CTREE_ROW (node)->row.selectable)
4798     return;
4799
4800   GTK_CTREE_ROW (node)->row.selectable = selectable;
4801
4802   if (!selectable && GTK_CTREE_ROW (node)->row.state == GTK_STATE_SELECTED)
4803     {
4804       GtkCList *clist;
4805
4806       clist = GTK_CLIST (ctree);
4807
4808       if (clist->anchor >= 0 &&
4809           clist->selection_mode == GTK_SELECTION_EXTENDED)
4810         {
4811           clist->drag_button = 0;
4812           remove_grab (clist);
4813
4814           GTK_CLIST_CLASS_FW (clist)->resync_selection (clist, NULL);
4815         }
4816       gtk_ctree_unselect (ctree, node);
4817     }
4818 }
4819
4820 gboolean
4821 gtk_ctree_node_get_selectable (GtkCTree     *ctree,
4822                                GtkCTreeNode *node)
4823 {
4824   g_return_val_if_fail (node != NULL, FALSE);
4825
4826   return GTK_CTREE_ROW (node)->row.selectable;
4827 }
4828
4829 GtkCellType
4830 gtk_ctree_node_get_cell_type (GtkCTree     *ctree,
4831                               GtkCTreeNode *node,
4832                               gint          column)
4833 {
4834   g_return_val_if_fail (ctree != NULL, -1);
4835   g_return_val_if_fail (GTK_IS_CTREE (ctree), -1);
4836   g_return_val_if_fail (node != NULL, -1);
4837
4838   if (column < 0 || column >= GTK_CLIST (ctree)->columns)
4839     return -1;
4840
4841   return GTK_CTREE_ROW (node)->row.cell[column].type;
4842 }
4843
4844 gint
4845 gtk_ctree_node_get_text (GtkCTree      *ctree,
4846                          GtkCTreeNode  *node,
4847                          gint           column,
4848                          gchar        **text)
4849 {
4850   g_return_val_if_fail (ctree != NULL, 0);
4851   g_return_val_if_fail (GTK_IS_CTREE (ctree), 0);
4852   g_return_val_if_fail (node != NULL, 0);
4853
4854   if (column < 0 || column >= GTK_CLIST (ctree)->columns)
4855     return 0;
4856
4857   if (GTK_CTREE_ROW (node)->row.cell[column].type != GTK_CELL_TEXT)
4858     return 0;
4859
4860   if (text)
4861     *text = GTK_CELL_TEXT (GTK_CTREE_ROW (node)->row.cell[column])->text;
4862
4863   return 1;
4864 }
4865
4866 gint
4867 gtk_ctree_node_get_pixmap (GtkCTree     *ctree,
4868                            GtkCTreeNode *node,
4869                            gint          column,
4870                            GdkPixmap   **pixmap,
4871                            GdkBitmap   **mask)
4872 {
4873   g_return_val_if_fail (ctree != NULL, 0);
4874   g_return_val_if_fail (GTK_IS_CTREE (ctree), 0);
4875   g_return_val_if_fail (node != NULL, 0);
4876
4877   if (column < 0 || column >= GTK_CLIST (ctree)->columns)
4878     return 0;
4879
4880   if (GTK_CTREE_ROW (node)->row.cell[column].type != GTK_CELL_PIXMAP)
4881     return 0;
4882
4883   if (pixmap)
4884     *pixmap = GTK_CELL_PIXMAP (GTK_CTREE_ROW(node)->row.cell[column])->pixmap;
4885   if (mask)
4886     *mask = GTK_CELL_PIXMAP (GTK_CTREE_ROW (node)->row.cell[column])->mask;
4887
4888   return 1;
4889 }
4890
4891 gint
4892 gtk_ctree_node_get_pixtext (GtkCTree      *ctree,
4893                             GtkCTreeNode  *node,
4894                             gint           column,
4895                             gchar        **text,
4896                             guint8        *spacing,
4897                             GdkPixmap    **pixmap,
4898                             GdkBitmap    **mask)
4899 {
4900   g_return_val_if_fail (ctree != NULL, 0);
4901   g_return_val_if_fail (GTK_IS_CTREE (ctree), 0);
4902   g_return_val_if_fail (node != NULL, 0);
4903
4904   if (column < 0 || column >= GTK_CLIST (ctree)->columns)
4905     return 0;
4906
4907   if (GTK_CTREE_ROW (node)->row.cell[column].type != GTK_CELL_PIXTEXT)
4908     return 0;
4909
4910   if (text)
4911     *text = GTK_CELL_PIXTEXT (GTK_CTREE_ROW (node)->row.cell[column])->text;
4912   if (spacing)
4913     *spacing = GTK_CELL_PIXTEXT (GTK_CTREE_ROW
4914                                  (node)->row.cell[column])->spacing;
4915   if (pixmap)
4916     *pixmap = GTK_CELL_PIXTEXT (GTK_CTREE_ROW
4917                                 (node)->row.cell[column])->pixmap;
4918   if (mask)
4919     *mask = GTK_CELL_PIXTEXT (GTK_CTREE_ROW (node)->row.cell[column])->mask;
4920
4921   return 1;
4922 }
4923
4924 gint
4925 gtk_ctree_get_node_info (GtkCTree      *ctree,
4926                          GtkCTreeNode  *node,
4927                          gchar        **text,
4928                          guint8        *spacing,
4929                          GdkPixmap    **pixmap_closed,
4930                          GdkBitmap    **mask_closed,
4931                          GdkPixmap    **pixmap_opened,
4932                          GdkBitmap    **mask_opened,
4933                          gboolean      *is_leaf,
4934                          gboolean      *expanded)
4935 {
4936   g_return_val_if_fail (ctree != NULL, 0);
4937   g_return_val_if_fail (GTK_IS_CTREE (ctree), 0);
4938   g_return_val_if_fail (node != NULL, 0);
4939
4940   if (text)
4941     *text = GTK_CELL_PIXTEXT
4942       (GTK_CTREE_ROW (node)->row.cell[ctree->tree_column])->text;
4943   if (spacing)
4944     *spacing = GTK_CELL_PIXTEXT
4945       (GTK_CTREE_ROW (node)->row.cell[ctree->tree_column])->spacing;
4946   if (pixmap_closed)
4947     *pixmap_closed = GTK_CTREE_ROW (node)->pixmap_closed;
4948   if (mask_closed)
4949     *mask_closed = GTK_CTREE_ROW (node)->mask_closed;
4950   if (pixmap_opened)
4951     *pixmap_opened = GTK_CTREE_ROW (node)->pixmap_opened;
4952   if (mask_opened)
4953     *mask_opened = GTK_CTREE_ROW (node)->mask_opened;
4954   if (is_leaf)
4955     *is_leaf = GTK_CTREE_ROW (node)->is_leaf;
4956   if (expanded)
4957     *expanded = GTK_CTREE_ROW (node)->expanded;
4958
4959   return 1;
4960 }
4961
4962 void
4963 gtk_ctree_node_set_cell_style (GtkCTree     *ctree,
4964                                GtkCTreeNode *node,
4965                                gint          column,
4966                                GtkStyle     *style)
4967 {
4968   GtkCList *clist;
4969   GtkRequisition requisition;
4970   gboolean visible = FALSE;
4971
4972   g_return_if_fail (ctree != NULL);
4973   g_return_if_fail (GTK_IS_CTREE (ctree));
4974   g_return_if_fail (node != NULL);
4975
4976   clist = GTK_CLIST (ctree);
4977
4978   if (column < 0 || column >= clist->columns)
4979     return;
4980
4981   if (GTK_CTREE_ROW (node)->row.cell[column].style == style)
4982     return;
4983
4984   if (clist->column[column].auto_resize &&
4985       !GTK_CLIST_AUTO_RESIZE_BLOCKED (clist))
4986     {
4987       visible = gtk_ctree_is_viewable (ctree, node);
4988       if (visible)
4989         GTK_CLIST_CLASS_FW (clist)->cell_size_request
4990           (clist, &GTK_CTREE_ROW (node)->row, column, &requisition);
4991     }
4992
4993   if (GTK_CTREE_ROW (node)->row.cell[column].style)
4994     {
4995       if (GTK_WIDGET_REALIZED (ctree))
4996         gtk_style_detach (GTK_CTREE_ROW (node)->row.cell[column].style);
4997       gtk_style_unref (GTK_CTREE_ROW (node)->row.cell[column].style);
4998     }
4999
5000   GTK_CTREE_ROW (node)->row.cell[column].style = style;
5001
5002   if (GTK_CTREE_ROW (node)->row.cell[column].style)
5003     {
5004       gtk_style_ref (GTK_CTREE_ROW (node)->row.cell[column].style);
5005
5006       if (GTK_WIDGET_REALIZED (ctree))
5007         GTK_CTREE_ROW (node)->row.cell[column].style =
5008           gtk_style_attach (GTK_CTREE_ROW (node)->row.cell[column].style,
5009                             clist->clist_window);
5010     }
5011
5012   if (visible)
5013     column_auto_resize (clist, &GTK_CTREE_ROW (node)->row, column,
5014                         requisition.width);
5015
5016   tree_draw_node (ctree, node);
5017 }
5018
5019 GtkStyle *
5020 gtk_ctree_node_get_cell_style (GtkCTree     *ctree,
5021                                GtkCTreeNode *node,
5022                                gint          column)
5023 {
5024   g_return_val_if_fail (ctree != NULL, NULL);
5025   g_return_val_if_fail (GTK_IS_CTREE (ctree), NULL);
5026   g_return_val_if_fail (node != NULL, NULL);
5027
5028   if (column < 0 || column >= GTK_CLIST (ctree)->columns)
5029     return NULL;
5030
5031   return GTK_CTREE_ROW (node)->row.cell[column].style;
5032 }
5033
5034 void
5035 gtk_ctree_node_set_row_style (GtkCTree     *ctree,
5036                               GtkCTreeNode *node,
5037                               GtkStyle     *style)
5038 {
5039   GtkCList *clist;
5040   GtkRequisition requisition;
5041   gboolean visible;
5042   gint *old_width = NULL;
5043   gint i;
5044
5045   g_return_if_fail (ctree != NULL);
5046   g_return_if_fail (GTK_IS_CTREE (ctree));
5047   g_return_if_fail (node != NULL);
5048
5049   clist = GTK_CLIST (ctree);
5050
5051   if (GTK_CTREE_ROW (node)->row.style == style)
5052     return;
5053
5054   visible = gtk_ctree_is_viewable (ctree, node);
5055   if (visible && !GTK_CLIST_AUTO_RESIZE_BLOCKED (clist))
5056     {
5057       old_width = g_new (gint, clist->columns);
5058       for (i = 0; i < clist->columns; i++)
5059         if (clist->column[i].auto_resize)
5060           {
5061             GTK_CLIST_CLASS_FW (clist)->cell_size_request
5062               (clist, &GTK_CTREE_ROW (node)->row, i, &requisition);
5063             old_width[i] = requisition.width;
5064           }
5065     }
5066
5067   if (GTK_CTREE_ROW (node)->row.style)
5068     {
5069       if (GTK_WIDGET_REALIZED (ctree))
5070         gtk_style_detach (GTK_CTREE_ROW (node)->row.style);
5071       gtk_style_unref (GTK_CTREE_ROW (node)->row.style);
5072     }
5073
5074   GTK_CTREE_ROW (node)->row.style = style;
5075
5076   if (GTK_CTREE_ROW (node)->row.style)
5077     {
5078       gtk_style_ref (GTK_CTREE_ROW (node)->row.style);
5079
5080       if (GTK_WIDGET_REALIZED (ctree))
5081         GTK_CTREE_ROW (node)->row.style =
5082           gtk_style_attach (GTK_CTREE_ROW (node)->row.style,
5083                             clist->clist_window);
5084     }
5085
5086   if (visible && !GTK_CLIST_AUTO_RESIZE_BLOCKED (clist))
5087     {
5088       for (i = 0; i < clist->columns; i++)
5089         if (clist->column[i].auto_resize)
5090           column_auto_resize (clist, &GTK_CTREE_ROW (node)->row, i,
5091                               old_width[i]);
5092       g_free (old_width);
5093     }
5094   tree_draw_node (ctree, node);
5095 }
5096
5097 GtkStyle *
5098 gtk_ctree_node_get_row_style (GtkCTree     *ctree,
5099                               GtkCTreeNode *node)
5100 {
5101   g_return_val_if_fail (ctree != NULL, NULL);
5102   g_return_val_if_fail (GTK_IS_CTREE (ctree), NULL);
5103   g_return_val_if_fail (node != NULL, NULL);
5104
5105   return GTK_CTREE_ROW (node)->row.style;
5106 }
5107
5108 void
5109 gtk_ctree_node_set_foreground (GtkCTree     *ctree,
5110                                GtkCTreeNode *node,
5111                                GdkColor     *color)
5112 {
5113   g_return_if_fail (ctree != NULL);
5114   g_return_if_fail (GTK_IS_CTREE (ctree));
5115   g_return_if_fail (node != NULL);
5116
5117   if (color)
5118     {
5119       GTK_CTREE_ROW (node)->row.foreground = *color;
5120       GTK_CTREE_ROW (node)->row.fg_set = TRUE;
5121       if (GTK_WIDGET_REALIZED (ctree))
5122         gdk_color_alloc (gtk_widget_get_colormap (GTK_WIDGET (ctree)),
5123                          &GTK_CTREE_ROW (node)->row.foreground);
5124     }
5125   else
5126     GTK_CTREE_ROW (node)->row.fg_set = FALSE;
5127
5128   tree_draw_node (ctree, node);
5129 }
5130
5131 void
5132 gtk_ctree_node_set_background (GtkCTree     *ctree,
5133                                GtkCTreeNode *node,
5134                                GdkColor     *color)
5135 {
5136   g_return_if_fail (ctree != NULL);
5137   g_return_if_fail (GTK_IS_CTREE (ctree));
5138   g_return_if_fail (node != NULL);
5139
5140   if (color)
5141     {
5142       GTK_CTREE_ROW (node)->row.background = *color;
5143       GTK_CTREE_ROW (node)->row.bg_set = TRUE;
5144       if (GTK_WIDGET_REALIZED (ctree))
5145         gdk_color_alloc (gtk_widget_get_colormap (GTK_WIDGET (ctree)),
5146                          &GTK_CTREE_ROW (node)->row.background);
5147     }
5148   else
5149     GTK_CTREE_ROW (node)->row.bg_set = FALSE;
5150
5151   tree_draw_node (ctree, node);
5152 }
5153
5154 void
5155 gtk_ctree_node_set_row_data (GtkCTree     *ctree,
5156                              GtkCTreeNode *node,
5157                              gpointer      data)
5158 {
5159   gtk_ctree_node_set_row_data_full (ctree, node, data, NULL);
5160 }
5161
5162 void
5163 gtk_ctree_node_set_row_data_full (GtkCTree         *ctree,
5164                                   GtkCTreeNode     *node,
5165                                   gpointer          data,
5166                                   GtkDestroyNotify  destroy)
5167 {
5168   g_return_if_fail (ctree != NULL);
5169   g_return_if_fail (GTK_IS_CTREE (ctree));
5170   g_return_if_fail (node != NULL);
5171
5172   GTK_CTREE_ROW (node)->row.data = data;
5173   GTK_CTREE_ROW (node)->row.destroy = destroy;
5174 }
5175
5176 gpointer
5177 gtk_ctree_node_get_row_data (GtkCTree     *ctree,
5178                              GtkCTreeNode *node)
5179 {
5180   g_return_val_if_fail (ctree != NULL, NULL);
5181   g_return_val_if_fail (GTK_IS_CTREE (ctree), NULL);
5182
5183   return node ? GTK_CTREE_ROW (node)->row.data : NULL;
5184 }
5185
5186 void
5187 gtk_ctree_node_moveto (GtkCTree     *ctree,
5188                        GtkCTreeNode *node,
5189                        gint          column,
5190                        gfloat        row_align,
5191                        gfloat        col_align)
5192 {
5193   gint row = -1;
5194   GtkCList *clist;
5195
5196   g_return_if_fail (ctree != NULL);
5197   g_return_if_fail (GTK_IS_CTREE (ctree));
5198
5199   clist = GTK_CLIST (ctree);
5200
5201   while (node && !gtk_ctree_is_viewable (ctree, node))
5202     node = GTK_CTREE_ROW (node)->parent;
5203
5204   if (node)
5205     row = g_list_position (clist->row_list, (GList *)node);
5206
5207   gtk_clist_moveto (clist, row, column, row_align, col_align);
5208 }
5209
5210 GtkVisibility gtk_ctree_node_is_visible (GtkCTree     *ctree,
5211                                          GtkCTreeNode *node)
5212 {
5213   gint row;
5214
5215   g_return_val_if_fail (ctree != NULL, 0);
5216   g_return_val_if_fail (node != NULL, 0);
5217
5218   row = g_list_position (GTK_CLIST (ctree)->row_list, (GList*) node);
5219   return gtk_clist_row_is_visible (GTK_CLIST (ctree), row);
5220 }
5221
5222
5223 /***********************************************************
5224  *             GtkCTree specific functions                 *
5225  ***********************************************************/
5226
5227 void
5228 gtk_ctree_set_indent (GtkCTree *ctree,
5229                       gint      indent)
5230 {
5231   GtkCList *clist;
5232
5233   g_return_if_fail (ctree != NULL);
5234   g_return_if_fail (GTK_IS_CTREE (ctree));
5235   g_return_if_fail (indent >= 0);
5236
5237   if (indent == ctree->tree_indent)
5238     return;
5239
5240   clist = GTK_CLIST (ctree);
5241   ctree->tree_indent = indent;
5242
5243   if (clist->column[ctree->tree_column].auto_resize &&
5244       !GTK_CLIST_AUTO_RESIZE_BLOCKED (clist))
5245     gtk_clist_set_column_width
5246       (clist, ctree->tree_column,
5247        gtk_clist_optimal_column_width (clist, ctree->tree_column));
5248   else
5249     CLIST_REFRESH (ctree);
5250 }
5251
5252 void
5253 gtk_ctree_set_spacing (GtkCTree *ctree,
5254                        gint      spacing)
5255 {
5256   GtkCList *clist;
5257   gint old_spacing;
5258
5259   g_return_if_fail (ctree != NULL);
5260   g_return_if_fail (GTK_IS_CTREE (ctree));
5261   g_return_if_fail (spacing >= 0);
5262
5263   if (spacing == ctree->tree_spacing)
5264     return;
5265
5266   clist = GTK_CLIST (ctree);
5267
5268   old_spacing = ctree->tree_spacing;
5269   ctree->tree_spacing = spacing;
5270
5271   if (clist->column[ctree->tree_column].auto_resize &&
5272       !GTK_CLIST_AUTO_RESIZE_BLOCKED (clist))
5273     gtk_clist_set_column_width (clist, ctree->tree_column,
5274                                 clist->column[ctree->tree_column].width +
5275                                 spacing - old_spacing);
5276   else
5277     CLIST_REFRESH (ctree);
5278 }
5279
5280 void
5281 gtk_ctree_set_show_stub (GtkCTree *ctree,
5282                          gboolean  show_stub)
5283 {
5284   g_return_if_fail (ctree != NULL);
5285   g_return_if_fail (GTK_IS_CTREE (ctree));
5286
5287   show_stub = show_stub != FALSE;
5288
5289   if (show_stub != ctree->show_stub)
5290     {
5291       GtkCList *clist;
5292
5293       clist = GTK_CLIST (ctree);
5294       ctree->show_stub = show_stub;
5295
5296       if (CLIST_UNFROZEN (clist) && clist->rows &&
5297           gtk_clist_row_is_visible (clist, 0) != GTK_VISIBILITY_NONE)
5298         GTK_CLIST_CLASS_FW (clist)->draw_row
5299           (clist, NULL, 0, GTK_CLIST_ROW (clist->row_list));
5300     }
5301 }
5302
5303 void
5304 gtk_ctree_set_line_style (GtkCTree          *ctree,
5305                           GtkCTreeLineStyle  line_style)
5306 {
5307   GtkCList *clist;
5308   GtkCTreeLineStyle old_style;
5309
5310   g_return_if_fail (ctree != NULL);
5311   g_return_if_fail (GTK_IS_CTREE (ctree));
5312
5313   if (line_style == ctree->line_style)
5314     return;
5315
5316   clist = GTK_CLIST (ctree);
5317
5318   old_style = ctree->line_style;
5319   ctree->line_style = line_style;
5320
5321   if (clist->column[ctree->tree_column].auto_resize &&
5322       !GTK_CLIST_AUTO_RESIZE_BLOCKED (clist))
5323     {
5324       if (old_style == GTK_CTREE_LINES_TABBED)
5325         gtk_clist_set_column_width
5326           (clist, ctree->tree_column,
5327            clist->column[ctree->tree_column].width - 3);
5328       else if (line_style == GTK_CTREE_LINES_TABBED)
5329         gtk_clist_set_column_width
5330           (clist, ctree->tree_column,
5331            clist->column[ctree->tree_column].width + 3);
5332     }
5333
5334   if (GTK_WIDGET_REALIZED (ctree))
5335     {
5336       switch (line_style)
5337         {
5338         case GTK_CTREE_LINES_SOLID:
5339           if (GTK_WIDGET_REALIZED (ctree))
5340             gdk_gc_set_line_attributes (ctree->lines_gc, 1, GDK_LINE_SOLID,
5341                                         None, None);
5342           break;
5343         case GTK_CTREE_LINES_DOTTED:
5344           if (GTK_WIDGET_REALIZED (ctree))
5345             gdk_gc_set_line_attributes (ctree->lines_gc, 1,
5346                                         GDK_LINE_ON_OFF_DASH, None, None);
5347           gdk_gc_set_dashes (ctree->lines_gc, 0, "\1\1", 2);
5348           break;
5349         case GTK_CTREE_LINES_TABBED:
5350           if (GTK_WIDGET_REALIZED (ctree))
5351             gdk_gc_set_line_attributes (ctree->lines_gc, 1, GDK_LINE_SOLID,
5352                                         None, None);
5353           break;
5354         case GTK_CTREE_LINES_NONE:
5355           break;
5356         default:
5357           return;
5358         }
5359       CLIST_REFRESH (ctree);
5360     }
5361 }
5362
5363 void
5364 gtk_ctree_set_expander_style (GtkCTree              *ctree,
5365                               GtkCTreeExpanderStyle  expander_style)
5366 {
5367   GtkCList *clist;
5368   GtkCTreeExpanderStyle old_style;
5369
5370   g_return_if_fail (ctree != NULL);
5371   g_return_if_fail (GTK_IS_CTREE (ctree));
5372
5373   if (expander_style == ctree->expander_style)
5374     return;
5375
5376   clist = GTK_CLIST (ctree);
5377
5378   old_style = ctree->expander_style;
5379   ctree->expander_style = expander_style;
5380
5381   if (clist->column[ctree->tree_column].auto_resize &&
5382       !GTK_CLIST_AUTO_RESIZE_BLOCKED (clist))
5383     {
5384       gint new_width;
5385
5386       new_width = clist->column[ctree->tree_column].width;
5387       switch (old_style)
5388         {
5389         case GTK_CTREE_EXPANDER_NONE:
5390           break;
5391         case GTK_CTREE_EXPANDER_TRIANGLE:
5392           new_width -= PM_SIZE + 3;
5393           break;
5394         case GTK_CTREE_EXPANDER_SQUARE:
5395         case GTK_CTREE_EXPANDER_CIRCULAR:
5396           new_width -= PM_SIZE + 1;
5397           break;
5398         }
5399
5400       switch (expander_style)
5401         {
5402         case GTK_CTREE_EXPANDER_NONE:
5403           break;
5404         case GTK_CTREE_EXPANDER_TRIANGLE:
5405           new_width += PM_SIZE + 3;
5406           break;
5407         case GTK_CTREE_EXPANDER_SQUARE:
5408         case GTK_CTREE_EXPANDER_CIRCULAR:
5409           new_width += PM_SIZE + 1;
5410           break;
5411         }
5412
5413       gtk_clist_set_column_width (clist, ctree->tree_column, new_width);
5414     }
5415
5416   if (GTK_WIDGET_DRAWABLE (clist))
5417     CLIST_REFRESH (clist);
5418 }
5419
5420
5421 /***********************************************************
5422  *             Tree sorting functions                      *
5423  ***********************************************************/
5424
5425
5426 static void
5427 tree_sort (GtkCTree     *ctree,
5428            GtkCTreeNode *node,
5429            gpointer      data)
5430 {
5431   GtkCTreeNode *list_start;
5432   GtkCTreeNode *cmp;
5433   GtkCTreeNode *work;
5434   GtkCList *clist;
5435
5436   clist = GTK_CLIST (ctree);
5437
5438   if (node)
5439     list_start = GTK_CTREE_ROW (node)->children;
5440   else
5441     list_start = GTK_CTREE_NODE (clist->row_list);
5442
5443   while (list_start)
5444     {
5445       cmp = list_start;
5446       work = GTK_CTREE_ROW (cmp)->sibling;
5447       while (work)
5448         {
5449           if (clist->sort_type == GTK_SORT_ASCENDING)
5450             {
5451               if (clist->compare
5452                   (clist, GTK_CTREE_ROW (work), GTK_CTREE_ROW (cmp)) < 0)
5453                 cmp = work;
5454             }
5455           else
5456             {
5457               if (clist->compare
5458                   (clist, GTK_CTREE_ROW (work), GTK_CTREE_ROW (cmp)) > 0)
5459                 cmp = work;
5460             }
5461           work = GTK_CTREE_ROW (work)->sibling;
5462         }
5463       if (cmp == list_start)
5464         list_start = GTK_CTREE_ROW (cmp)->sibling;
5465       else
5466         {
5467           gtk_ctree_unlink (ctree, cmp, FALSE);
5468           gtk_ctree_link (ctree, cmp, node, list_start, FALSE);
5469         }
5470     }
5471 }
5472
5473 void
5474 gtk_ctree_sort_recursive (GtkCTree     *ctree,
5475                           GtkCTreeNode *node)
5476 {
5477   GtkCList *clist;
5478   GtkCTreeNode *focus_node = NULL;
5479
5480   g_return_if_fail (ctree != NULL);
5481   g_return_if_fail (GTK_IS_CTREE (ctree));
5482
5483   clist = GTK_CLIST (ctree);
5484
5485   gtk_clist_freeze (clist);
5486
5487   if (clist->selection_mode == GTK_SELECTION_EXTENDED)
5488     {
5489       if (clist->anchor != -1)
5490         GTK_CLIST_CLASS_FW (clist)->resync_selection (clist, NULL);
5491
5492       g_list_free (clist->undo_selection);
5493       g_list_free (clist->undo_unselection);
5494       clist->undo_selection = NULL;
5495       clist->undo_unselection = NULL;
5496     }
5497
5498   if (!node || (node && gtk_ctree_is_viewable (ctree, node)))
5499     focus_node =
5500       GTK_CTREE_NODE (g_list_nth (clist->row_list, clist->focus_row));
5501
5502   gtk_ctree_post_recursive (ctree, node, GTK_CTREE_FUNC (tree_sort), NULL);
5503
5504   if (!node)
5505     tree_sort (ctree, NULL, NULL);
5506
5507   if (focus_node)
5508     {
5509       clist->focus_row = g_list_position (clist->row_list,(GList *)focus_node);
5510       clist->undo_anchor = clist->focus_row;
5511     }
5512
5513   gtk_clist_thaw (clist);
5514 }
5515
5516 static void
5517 real_sort_list (GtkCList *clist)
5518 {
5519   gtk_ctree_sort_recursive (GTK_CTREE (clist), NULL);
5520 }
5521
5522 void
5523 gtk_ctree_sort_node (GtkCTree     *ctree,
5524                      GtkCTreeNode *node)
5525 {
5526   GtkCList *clist;
5527   GtkCTreeNode *focus_node = NULL;
5528
5529   g_return_if_fail (ctree != NULL);
5530   g_return_if_fail (GTK_IS_CTREE (ctree));
5531
5532   clist = GTK_CLIST (ctree);
5533
5534   gtk_clist_freeze (clist);
5535
5536   if (clist->selection_mode == GTK_SELECTION_EXTENDED)
5537     {
5538       if (clist->anchor != -1)
5539         GTK_CLIST_CLASS_FW (clist)->resync_selection (clist, NULL);
5540
5541       g_list_free (clist->undo_selection);
5542       g_list_free (clist->undo_unselection);
5543       clist->undo_selection = NULL;
5544       clist->undo_unselection = NULL;
5545     }
5546
5547   if (!node || (node && gtk_ctree_is_viewable (ctree, node)))
5548     focus_node = GTK_CTREE_NODE
5549       (g_list_nth (clist->row_list, clist->focus_row));
5550
5551   tree_sort (ctree, node, NULL);
5552
5553   if (focus_node)
5554     {
5555       clist->focus_row = g_list_position (clist->row_list,(GList *)focus_node);
5556       clist->undo_anchor = clist->focus_row;
5557     }
5558
5559   gtk_clist_thaw (clist);
5560 }
5561
5562 /************************************************************************/
5563
5564 static void
5565 fake_unselect_all (GtkCList *clist,
5566                    gint      row)
5567 {
5568   GList *list;
5569   GList *focus_node = NULL;
5570
5571   if (row >= 0 && (focus_node = g_list_nth (clist->row_list, row)))
5572     {
5573       if (GTK_CTREE_ROW (focus_node)->row.state == GTK_STATE_NORMAL &&
5574           GTK_CTREE_ROW (focus_node)->row.selectable)
5575         {
5576           GTK_CTREE_ROW (focus_node)->row.state = GTK_STATE_SELECTED;
5577
5578           if (CLIST_UNFROZEN (clist) &&
5579               gtk_clist_row_is_visible (clist, row) != GTK_VISIBILITY_NONE)
5580             GTK_CLIST_CLASS_FW (clist)->draw_row (clist, NULL, row,
5581                                                   GTK_CLIST_ROW (focus_node));
5582         }
5583     }
5584
5585   clist->undo_selection = clist->selection;
5586   clist->selection = NULL;
5587   clist->selection_end = NULL;
5588
5589   for (list = clist->undo_selection; list; list = list->next)
5590     {
5591       if (list->data == focus_node)
5592         continue;
5593
5594       GTK_CTREE_ROW ((GList *)(list->data))->row.state = GTK_STATE_NORMAL;
5595       tree_draw_node (GTK_CTREE (clist), GTK_CTREE_NODE (list->data));
5596     }
5597 }
5598
5599 static GList *
5600 selection_find (GtkCList *clist,
5601                 gint      row_number,
5602                 GList    *row_list_element)
5603 {
5604   return g_list_find (clist->selection, row_list_element);
5605 }
5606
5607 static void
5608 resync_selection (GtkCList *clist, GdkEvent *event)
5609 {
5610   GtkCTree *ctree;
5611   GList *list;
5612   GtkCTreeNode *node;
5613   gint i;
5614   gint e;
5615   gint row;
5616   gboolean unselect;
5617
5618   g_return_if_fail (clist != NULL);
5619   g_return_if_fail (GTK_IS_CTREE (clist));
5620
5621   if (clist->anchor < 0)
5622     return;
5623
5624   ctree = GTK_CTREE (clist);
5625
5626   clist->freeze_count++;
5627
5628   i = MIN (clist->anchor, clist->drag_pos);
5629   e = MAX (clist->anchor, clist->drag_pos);
5630
5631   if (clist->undo_selection)
5632     {
5633       list = clist->selection;
5634       clist->selection = clist->undo_selection;
5635       clist->selection_end = g_list_last (clist->selection);
5636       clist->undo_selection = list;
5637       list = clist->selection;
5638
5639       while (list)
5640         {
5641           node = list->data;
5642           list = list->next;
5643
5644           unselect = TRUE;
5645
5646           if (gtk_ctree_is_viewable (ctree, node))
5647             {
5648               row = g_list_position (clist->row_list, (GList *)node);
5649               if (row >= i && row <= e)
5650                 unselect = FALSE;
5651             }
5652           if (unselect && GTK_CTREE_ROW (node)->row.selectable)
5653             {
5654               GTK_CTREE_ROW (node)->row.state = GTK_STATE_SELECTED;
5655               gtk_ctree_unselect (ctree, node);
5656               clist->undo_selection = g_list_prepend (clist->undo_selection,
5657                                                       node);
5658             }
5659         }
5660     }
5661
5662
5663   for (node = GTK_CTREE_NODE (g_list_nth (clist->row_list, i)); i <= e;
5664        i++, node = GTK_CTREE_NODE_NEXT (node))
5665     if (GTK_CTREE_ROW (node)->row.selectable)
5666       {
5667         if (g_list_find (clist->selection, node))
5668           {
5669             if (GTK_CTREE_ROW (node)->row.state == GTK_STATE_NORMAL)
5670               {
5671                 GTK_CTREE_ROW (node)->row.state = GTK_STATE_SELECTED;
5672                 gtk_ctree_unselect (ctree, node);
5673                 clist->undo_selection = g_list_prepend (clist->undo_selection,
5674                                                         node);
5675               }
5676           }
5677         else if (GTK_CTREE_ROW (node)->row.state == GTK_STATE_SELECTED)
5678           {
5679             GTK_CTREE_ROW (node)->row.state = GTK_STATE_NORMAL;
5680             clist->undo_unselection = g_list_prepend (clist->undo_unselection,
5681                                                       node);
5682           }
5683       }
5684
5685   for (list = clist->undo_unselection; list; list = list->next)
5686     gtk_ctree_select (ctree, list->data);
5687
5688   clist->anchor = -1;
5689   clist->drag_pos = -1;
5690
5691   if (!CLIST_UNFROZEN (clist))
5692     clist->freeze_count--;
5693 }
5694
5695 static void
5696 real_undo_selection (GtkCList *clist)
5697 {
5698   GtkCTree *ctree;
5699   GList *work;
5700
5701   g_return_if_fail (clist != NULL);
5702   g_return_if_fail (GTK_IS_CTREE (clist));
5703
5704   if (clist->selection_mode != GTK_SELECTION_EXTENDED)
5705     return;
5706
5707   if (!(clist->undo_selection || clist->undo_unselection))
5708     {
5709       gtk_clist_unselect_all (clist);
5710       return;
5711     }
5712
5713   ctree = GTK_CTREE (clist);
5714
5715   for (work = clist->undo_selection; work; work = work->next)
5716     if (GTK_CTREE_ROW (work->data)->row.selectable)
5717       gtk_ctree_select (ctree, GTK_CTREE_NODE (work->data));
5718
5719   for (work = clist->undo_unselection; work; work = work->next)
5720     if (GTK_CTREE_ROW (work->data)->row.selectable)
5721       gtk_ctree_unselect (ctree, GTK_CTREE_NODE (work->data));
5722
5723   if (GTK_WIDGET_HAS_FOCUS (clist) && clist->focus_row != clist->undo_anchor)
5724     {
5725       gtk_widget_draw_focus (GTK_WIDGET (clist));
5726       clist->focus_row = clist->undo_anchor;
5727       gtk_widget_draw_focus (GTK_WIDGET (clist));
5728     }
5729   else
5730     clist->focus_row = clist->undo_anchor;
5731
5732   clist->undo_anchor = -1;
5733
5734   g_list_free (clist->undo_selection);
5735   g_list_free (clist->undo_unselection);
5736   clist->undo_selection = NULL;
5737   clist->undo_unselection = NULL;
5738
5739   if (ROW_TOP_YPIXEL (clist, clist->focus_row) + clist->row_height >
5740       clist->clist_window_height)
5741     gtk_clist_moveto (clist, clist->focus_row, -1, 1, 0);
5742   else if (ROW_TOP_YPIXEL (clist, clist->focus_row) < 0)
5743     gtk_clist_moveto (clist, clist->focus_row, -1, 0, 0);
5744
5745 }
5746
5747 void
5748 gtk_ctree_set_drag_compare_func (GtkCTree                *ctree,
5749                                  GtkCTreeCompareDragFunc  cmp_func)
5750 {
5751   g_return_if_fail (ctree != NULL);
5752   g_return_if_fail (GTK_IS_CTREE (ctree));
5753
5754   ctree->drag_compare = cmp_func;
5755 }
5756
5757 static gboolean
5758 check_drag (GtkCTree        *ctree,
5759             GtkCTreeNode    *drag_source,
5760             GtkCTreeNode    *drag_target,
5761             GtkCListDragPos  insert_pos)
5762 {
5763   g_return_val_if_fail (ctree != NULL, FALSE);
5764   g_return_val_if_fail (GTK_IS_CTREE (ctree), FALSE);
5765
5766   if (drag_source && drag_source != drag_target &&
5767       (!GTK_CTREE_ROW (drag_source)->children ||
5768        !gtk_ctree_is_ancestor (ctree, drag_source, drag_target)))
5769     {
5770       switch (insert_pos)
5771         {
5772         case GTK_CLIST_DRAG_NONE:
5773           return FALSE;
5774         case GTK_CLIST_DRAG_AFTER:
5775           if (GTK_CTREE_ROW (drag_target)->sibling != drag_source)
5776             return (!ctree->drag_compare ||
5777                     ctree->drag_compare (ctree,
5778                                          drag_source,
5779                                          GTK_CTREE_ROW (drag_target)->parent,
5780                                          GTK_CTREE_ROW(drag_target)->sibling));
5781           break;
5782         case GTK_CLIST_DRAG_BEFORE:
5783           if (GTK_CTREE_ROW (drag_source)->sibling != drag_target)
5784             return (!ctree->drag_compare ||
5785                     ctree->drag_compare (ctree,
5786                                          drag_source,
5787                                          GTK_CTREE_ROW (drag_target)->parent,
5788                                          drag_target));
5789           break;
5790         case GTK_CLIST_DRAG_INTO:
5791           if (!GTK_CTREE_ROW (drag_target)->is_leaf &&
5792               GTK_CTREE_ROW (drag_target)->children != drag_source)
5793             return (!ctree->drag_compare ||
5794                     ctree->drag_compare (ctree,
5795                                          drag_source,
5796                                          drag_target,
5797                                          GTK_CTREE_ROW (drag_target)->children));
5798           break;
5799         }
5800     }
5801   return FALSE;
5802 }
5803
5804
5805
5806 /************************************/
5807 static void
5808 drag_dest_info_destroy (gpointer data)
5809 {
5810   GtkCListDestInfo *info = data;
5811
5812   g_free (info);
5813 }
5814
5815 static void
5816 gtk_ctree_drag_begin (GtkWidget      *widget,
5817                       GdkDragContext *context)
5818 {
5819   GtkCList *clist;
5820   GtkCTree *ctree;
5821   gboolean use_icons;
5822
5823   g_return_if_fail (widget != NULL);
5824   g_return_if_fail (GTK_IS_CTREE (widget));
5825   g_return_if_fail (context != NULL);
5826
5827   clist = GTK_CLIST (widget);
5828   ctree = GTK_CTREE (widget);
5829
5830   use_icons = GTK_CLIST_USE_DRAG_ICONS (clist);
5831   GTK_CLIST_UNSET_FLAG (clist, CLIST_USE_DRAG_ICONS);
5832   GTK_WIDGET_CLASS (parent_class)->drag_begin (widget, context);
5833
5834   if (use_icons)
5835     {
5836       GtkCTreeNode *node;
5837
5838       GTK_CLIST_SET_FLAG (clist, CLIST_USE_DRAG_ICONS);
5839       node = GTK_CTREE_NODE (g_list_nth (clist->row_list,
5840                                          clist->click_cell.row));
5841       if (node)
5842         {
5843           if (GTK_CELL_PIXTEXT
5844               (GTK_CTREE_ROW (node)->row.cell[ctree->tree_column])->pixmap)
5845             {
5846               gtk_drag_set_icon_pixmap
5847                 (context,
5848                  gtk_widget_get_colormap (widget),
5849                  GTK_CELL_PIXTEXT
5850                  (GTK_CTREE_ROW (node)->row.cell[ctree->tree_column])->pixmap,
5851                  GTK_CELL_PIXTEXT
5852                  (GTK_CTREE_ROW (node)->row.cell[ctree->tree_column])->mask,
5853                  -2, -2);
5854               return;
5855             }
5856         }
5857       gtk_drag_set_icon_default (context);
5858     }
5859 }
5860
5861 static gint
5862 gtk_ctree_drag_motion (GtkWidget      *widget,
5863                        GdkDragContext *context,
5864                        gint            x,
5865                        gint            y,
5866                        guint           time)
5867 {
5868   GtkCList *clist;
5869   GtkCTree *ctree;
5870   gint row, column;
5871   GtkCListDestInfo *dest_info;
5872   gint h = 0;
5873   gint insert_pos = GTK_CLIST_DRAG_NONE;
5874   gint y_delta;
5875
5876   g_return_val_if_fail (widget != NULL, FALSE);
5877   g_return_val_if_fail (GTK_IS_CTREE (widget), FALSE);
5878
5879   clist = GTK_CLIST (widget);
5880   ctree = GTK_CTREE (widget);
5881
5882   y -= (GTK_CONTAINER (widget)->border_width +
5883         widget->style->klass->ythickness + clist->column_title_area.height);
5884   row = ROW_FROM_YPIXEL (clist, y);
5885
5886   if (row >= clist->rows)
5887     {
5888       row = clist->rows - 1;
5889       y = ROW_TOP_YPIXEL (clist, row) + clist->row_height;
5890     }
5891   if (row < -1)
5892     row = -1;
5893
5894   x -= GTK_CONTAINER (widget)->border_width + widget->style->klass->xthickness;
5895   column = COLUMN_FROM_XPIXEL (clist, x);
5896
5897   if (row >= 0)
5898     {
5899       y_delta = y - ROW_TOP_YPIXEL (clist, row);
5900
5901       if (GTK_CLIST_DRAW_DRAG_RECT(clist))
5902         {
5903           insert_pos = GTK_CLIST_DRAG_INTO;
5904           h = clist->row_height / 4;
5905         }
5906       else if (GTK_CLIST_DRAW_DRAG_LINE(clist))
5907         {
5908           insert_pos = GTK_CLIST_DRAG_BEFORE;
5909           h = clist->row_height / 2;
5910         }
5911
5912       if (GTK_CLIST_DRAW_DRAG_LINE(clist))
5913         {
5914           if (y_delta < h)
5915             insert_pos = GTK_CLIST_DRAG_BEFORE;
5916           else if (clist->row_height - y_delta < h)
5917             insert_pos = GTK_CLIST_DRAG_AFTER;
5918         }
5919     }
5920
5921   dest_info = g_dataset_get_data (context, "gtk-clist-drag-dest");
5922
5923   if (!dest_info)
5924     {
5925       dest_info = g_new (GtkCListDestInfo, 1);
5926
5927       dest_info->cell.row    = -1;
5928       dest_info->cell.column = -1;
5929       dest_info->insert_pos  = GTK_CLIST_DRAG_NONE;
5930
5931       g_dataset_set_data_full (context, "gtk-clist-drag-dest", dest_info,
5932                                drag_dest_info_destroy);
5933     }
5934
5935   if (GTK_CLIST_REORDERABLE (clist))
5936     {
5937       GList *list;
5938       GdkAtom atom = gdk_atom_intern ("gtk-clist-drag-reorder", FALSE);
5939
5940       list = context->targets;
5941       while (list)
5942         {
5943           if (atom == GPOINTER_TO_INT (list->data))
5944             break;
5945           list = list->next;
5946         }
5947
5948       if (list)
5949         {
5950           GtkCTreeNode *drag_source;
5951           GtkCTreeNode *drag_target;
5952
5953           drag_source = GTK_CTREE_NODE (g_list_nth (clist->row_list,
5954                                                     clist->click_cell.row));
5955           drag_target = GTK_CTREE_NODE (g_list_nth (clist->row_list, row));
5956
5957           if (gtk_drag_get_source_widget (context) != widget ||
5958               !check_drag (ctree, drag_source, drag_target, insert_pos))
5959             {
5960               if (dest_info->cell.row < 0)
5961                 {
5962                   gdk_drag_status (context, GDK_ACTION_DEFAULT, time);
5963                   return FALSE;
5964                 }
5965               return TRUE;
5966             }
5967
5968           if (row != dest_info->cell.row ||
5969               (row == dest_info->cell.row &&
5970                dest_info->insert_pos != insert_pos))
5971             {
5972               if (dest_info->cell.row >= 0)
5973                 GTK_CLIST_CLASS_FW (clist)->draw_drag_highlight
5974                   (clist,
5975                    g_list_nth (clist->row_list, dest_info->cell.row)->data,
5976                    dest_info->cell.row, dest_info->insert_pos);
5977
5978               dest_info->insert_pos  = insert_pos;
5979               dest_info->cell.row    = row;
5980               dest_info->cell.column = column;
5981
5982               GTK_CLIST_CLASS_FW (clist)->draw_drag_highlight
5983                 (clist,
5984                  g_list_nth (clist->row_list, dest_info->cell.row)->data,
5985                  dest_info->cell.row, dest_info->insert_pos);
5986
5987               gdk_drag_status (context, context->suggested_action, time);
5988             }
5989           return TRUE;
5990         }
5991     }
5992
5993   dest_info->insert_pos  = insert_pos;
5994   dest_info->cell.row    = row;
5995   dest_info->cell.column = column;
5996   return TRUE;
5997 }
5998
5999 static void
6000 gtk_ctree_drag_data_received (GtkWidget        *widget,
6001                               GdkDragContext   *context,
6002                               gint              x,
6003                               gint              y,
6004                               GtkSelectionData *selection_data,
6005                               guint             info,
6006                               guint32           time)
6007 {
6008   GtkCTree *ctree;
6009   GtkCList *clist;
6010
6011   g_return_if_fail (widget != NULL);
6012   g_return_if_fail (GTK_IS_CTREE (widget));
6013   g_return_if_fail (context != NULL);
6014   g_return_if_fail (selection_data != NULL);
6015
6016   ctree = GTK_CTREE (widget);
6017   clist = GTK_CLIST (widget);
6018
6019   if (GTK_CLIST_REORDERABLE (clist) &&
6020       gtk_drag_get_source_widget (context) == widget &&
6021       selection_data->target ==
6022       gdk_atom_intern ("gtk-clist-drag-reorder", FALSE) &&
6023       selection_data->format == GTK_TYPE_POINTER &&
6024       selection_data->length == sizeof (GtkCListCellInfo))
6025     {
6026       GtkCListCellInfo *source_info;
6027       GtkCListDestInfo *dest_info;
6028
6029       source_info = (GtkCListCellInfo *)(selection_data->data);
6030       dest_info = g_dataset_get_data (context, "gtk-clist-drag-dest");
6031
6032       if (dest_info && source_info)
6033         {
6034           GtkCTreeNode *source_node;
6035           GtkCTreeNode *dest_node;
6036
6037           source_node = GTK_CTREE_NODE (g_list_nth (clist->row_list,
6038                                                     source_info->row));
6039           dest_node = GTK_CTREE_NODE (g_list_nth (clist->row_list,
6040                                                   dest_info->cell.row));
6041
6042           if (!source_info || !dest_info)
6043             return;
6044
6045           switch (dest_info->insert_pos)
6046             {
6047             case GTK_CLIST_DRAG_NONE:
6048               break;
6049             case GTK_CLIST_DRAG_INTO:
6050               if (check_drag (ctree, source_node, dest_node,
6051                               dest_info->insert_pos))
6052                 gtk_ctree_move (ctree, source_node, dest_node,
6053                                 GTK_CTREE_ROW (dest_node)->children);
6054               g_dataset_remove_data (context, "gtk-clist-drag-dest");
6055               break;
6056             case GTK_CLIST_DRAG_BEFORE:
6057               if (check_drag (ctree, source_node, dest_node,
6058                               dest_info->insert_pos))
6059                 gtk_ctree_move (ctree, source_node,
6060                                 GTK_CTREE_ROW (dest_node)->parent, dest_node);
6061               g_dataset_remove_data (context, "gtk-clist-drag-dest");
6062               break;
6063             case GTK_CLIST_DRAG_AFTER:
6064               if (check_drag (ctree, source_node, dest_node,
6065                               dest_info->insert_pos))
6066                 gtk_ctree_move (ctree, source_node,
6067                                 GTK_CTREE_ROW (dest_node)->parent,
6068                                 GTK_CTREE_ROW (dest_node)->sibling);
6069               g_dataset_remove_data (context, "gtk-clist-drag-dest");
6070               break;
6071             }
6072         }
6073     }
6074 }