Pileus Git - ~andy/gtk/blob - gtk/gtktreeprivate.h

   1 /* gtktreeprivate.h
   2  * Copyright (C) 2000  Red Hat, Inc.,  Jonathan Blandford <jrb@redhat.com>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 #ifndef __GTK_TREE_PRIVATE_H__
  21 #define __GTK_TREE_PRIVATE_H__
  22
  23
  24 #ifdef __cplusplus
  25 extern "C" {
  26 #endif /* __cplusplus */
  27
  28 #include <gtk/gtktreeview.h>
  29 #include <gtk/gtktreeselection.h>
  30 #include <gtk/gtkrbtree.h>
  31
  32
  33
  34 #define TREE_VIEW_DRAG_WIDTH 6
  35
  36 typedef enum
  37 {
  38   GTK_TREE_VIEW_IS_LIST = 1 << 0,
  39   GTK_TREE_VIEW_SHOW_EXPANDERS = 1 << 1,
  40   GTK_TREE_VIEW_IN_COLUMN_RESIZE = 1 << 2,
  41   GTK_TREE_VIEW_ARROW_PRELIT = 1 << 3,
  42   GTK_TREE_VIEW_HEADERS_VISIBLE = 1 << 4,
  43   GTK_TREE_VIEW_DRAW_KEYFOCUS = 1 << 5,
  44   GTK_TREE_VIEW_MODEL_SETUP = 1 << 6,
  45   GTK_TREE_VIEW_IN_COLUMN_DRAG = 1 << 7,
  46 } GtkTreeViewFlags;
  47
  48 enum
  49 {
  50   DRAG_COLUMN_WINDOW_STATE_UNSET = 0,
  51   DRAG_COLUMN_WINDOW_STATE_ORIGINAL = 1,
  52   DRAG_COLUMN_WINDOW_STATE_ARROW = 2,
  53   DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT = 3,
  54   DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT = 4,
  55
  56 };
  57 #define GTK_TREE_VIEW_SET_FLAG(tree_view, flag)   G_STMT_START{ (tree_view->priv->flags|=flag); }G_STMT_END
  58 #define GTK_TREE_VIEW_UNSET_FLAG(tree_view, flag) G_STMT_START{ (tree_view->priv->flags&=~(flag)); }G_STMT_END
  59 #define GTK_TREE_VIEW_FLAG_SET(tree_view, flag)   ((tree_view->priv->flags&flag)==flag)
  60 #define TREE_VIEW_HEADER_HEIGHT(tree_view)        (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE)?tree_view->priv->header_height:0)
  61 #define TREE_VIEW_COLUMN_WIDTH(column)             (CLAMP (column->width, (column->min_width!=-1)?column->min_width:column->width, (column->max_width!=-1)?column->max_width:column->width))
  62 #define TREE_VIEW_DRAW_EXPANDERS(tree_view)       (!GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST)&&GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS))
  63
  64  /* This lovely little value is used to determine how far away from the title bar
  65   * you can move the mouse and still have a column drag work.
  66   */
  67 #define TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER(tree_view) (10*TREE_VIEW_HEADER_HEIGHT(tree_view))
  68
  69 typedef struct _GtkTreeViewColumnReorder GtkTreeViewColumnReorder;
  70 struct _GtkTreeViewColumnReorder
  71 {
  72   gint left_align;
  73   gint right_align;
  74   GtkTreeViewColumn *left_column;
  75   GtkTreeViewColumn *right_column;
  76 };
  77
  78 struct _GtkTreeViewPrivate
  79 {
  80   GtkTreeModel *model;
  81
  82   guint flags;
  83   /* tree information */
  84   GtkRBTree *tree;
  85
  86   gint tab_offset;
  87   GtkRBNode *button_pressed_node;
  88   GtkRBTree *button_pressed_tree;
  89
  90   GList *children;
  91   gint width;
  92   gint height;
  93
  94   GtkAdjustment *hadjustment;
  95   GtkAdjustment *vadjustment;
  96
  97   GdkWindow *bin_window;
  98   GdkWindow *header_window;
  99   GdkWindow *drag_window;
 100   GdkWindow *drag_highlight_window;
 101   GtkTreeViewColumn *drag_column;
 102   gint drag_column_x;
 103
 104   GtkTreeViewColumn *expander_column;
 105
 106   /* Focus code */
 107   GtkTreeViewColumn *focus_column;
 108   GtkTreeViewColumn *scroll_column;
 109
 110   /* Selection stuff */
 111   GtkTreeRowReference *anchor;
 112   GtkTreeRowReference *cursor;
 113
 114   /* Column Resizing */
 115   GdkCursor *cursor_drag;
 116   GdkGC *xor_gc;
 117   gint drag_pos;
 118   gint x_drag;
 119
 120   /* Prelight information */
 121   GtkRBNode *prelight_node;
 122   GtkRBTree *prelight_tree;
 123
 124   /* Selection information */
 125   GtkTreeSelection *selection;
 126
 127   /* Header information */
 128   gint n_columns;
 129   GList *columns;
 130   gint header_height;
 131
 132   GtkTreeViewColumnDropFunc column_drop_func;
 133   gpointer column_drop_func_data;
 134   GtkDestroyNotify column_drop_func_data_destroy;
 135   GList *column_drag_info;
 136   GtkTreeViewColumnReorder *cur_reorder;
 137
 138   /* ATK Hack */
 139   GtkTreeDestroyCountFunc destroy_count_func;
 140   gpointer destroy_count_data;
 141   GtkDestroyNotify destroy_count_destroy;
 142
 143   /* Scroll timeout (e.g. during dnd) */
 144   guint scroll_timeout;
 145
 146   /* Row drag-and-drop */
 147   GtkTreeRowReference *drag_dest_row;
 148   GtkTreeViewDropPosition drag_dest_pos;
 149   guint open_dest_timeout;
 150
 151   gint pressed_button;
 152   gint press_start_x;
 153   gint press_start_y;
 154
 155   /* Scroll-to functionality when unrealized */
 156   GtkTreePath *scroll_to_path;
 157   GtkTreeViewColumn *scroll_to_column;
 158   gfloat scroll_to_row_align;
 159   gfloat scroll_to_col_align;
 160
 161   guint reorderable : 1;
 162   guint header_has_focus : 1;
 163   guint drag_column_window_state : 3;
 164   /* hint to display rows in alternating colors */
 165   guint has_rules : 1;
 166
 167   guint in_extended_selection : 1;
 168   guint in_free_motion : 1;
 169 };
 170
 171 #ifdef __GNUC__
 172
 173 #define TREE_VIEW_INTERNAL_ASSERT(expr, ret)     G_STMT_START{          \
 174      if (!(expr))                                                       \
 175        {                                                                \
 176          g_log (G_LOG_DOMAIN,                                           \
 177                 G_LOG_LEVEL_CRITICAL,                                   \
 178                 "file %s: line %d (%s): assertion `%s' failed.\n"       \
 179                 "There is a disparity between the internal view of the GtkTreeView,\n"    \
 180                 "and the GtkTreeModel.  This generally means that the model has changed\n"\
 181                 "without letting the view know.  Any display from now on is likely to\n"  \
 182                 "be incorrect.\n",                                                        \
 183                 __FILE__,                                               \
 184                 __LINE__,                                               \
 185                 __PRETTY_FUNCTION__,                                    \
 186                 #expr);                                                 \
 187          return ret;                                                    \
 188        };                               }G_STMT_END
 189
 190 #define TREE_VIEW_INTERNAL_ASSERT_VOID(expr)     G_STMT_START{             \
 191      if (!(expr))                                                       \
 192        {                                                                \
 193          g_log (G_LOG_DOMAIN,                                           \
 194                 G_LOG_LEVEL_CRITICAL,                                   \
 195                 "file %s: line %d (%s): assertion `%s' failed.\n"       \
 196                 "There is a disparity between the internal view of the GtkTreeView,\n"    \
 197                 "and the GtkTreeModel.  This generally means that the model has changed\n"\
 198                 "without letting the view know.  Any display from now on is likely to\n"  \
 199                 "be incorrect.\n",                                                        \
 200                 __FILE__,                                               \
 201                 __LINE__,                                               \
 202                 __PRETTY_FUNCTION__,                                    \
 203                 #expr);                                                 \
 204          return;                                                        \
 205        };                               }G_STMT_END
 206
 207 #else
 208
 209 #define TREE_VIEW_INTERNAL_ASSERT(expr, ret)     G_STMT_START{          \
 210      if (!(expr))                                                       \
 211        {                                                                \
 212          g_log (G_LOG_DOMAIN,                                           \
 213                 G_LOG_LEVEL_CRITICAL,                                   \
 214                 "file %s: line %d: assertion `%s' failed.\n"       \
 215                 "There is a disparity between the internal view of the GtkTreeView,\n"    \
 216                 "and the GtkTreeModel.  This generally means that the model has changed\n"\
 217                 "without letting the view know.  Any display from now on is likely to\n"  \
 218                 "be incorrect.\n",                                                        \
 219                 __FILE__,                                               \
 220                 __LINE__,                                               \
 221                 #expr);                                                 \
 222          return ret;                                                    \
 223        };                               }G_STMT_END
 224
 225 #define TREE_VIEW_INTERNAL_ASSERT_VOID(expr)     G_STMT_START{          \
 226      if (!(expr))                                                       \
 227        {                                                                \
 228          g_log (G_LOG_DOMAIN,                                           \
 229                 G_LOG_LEVEL_CRITICAL,                                   \
 230                 "file %s: line %d: assertion '%s' failed.\n"            \
 231                 "There is a disparity between the internal view of the GtkTreeView,\n"    \
 232                 "and the GtkTreeModel.  This generally means that the model has changed\n"\
 233                 "without letting the view know.  Any display from now on is likely to\n"  \
 234                 "be incorrect.\n",                                                        \
 235                 __FILE__,                                               \
 236                 __LINE__,                                               \
 237                 #expr);                                                 \
 238          return;                                                        \
 239        };                               }G_STMT_END
 240 #endif
 241
 242
 243 /* functions that shouldn't be exported */
 244 void         _gtk_tree_selection_internal_select_node (GtkTreeSelection  *selection,
 245                                                        GtkRBNode         *node,
 246                                                        GtkRBTree         *tree,
 247                                                        GtkTreePath       *path,
 248                                                        GdkModifierType    state);
 249 gboolean     _gtk_tree_view_find_node                 (GtkTreeView       *tree_view,
 250                                                        GtkTreePath       *path,
 251                                                        GtkRBTree        **tree,
 252                                                        GtkRBNode        **node);
 253 GtkTreePath *_gtk_tree_view_find_path                 (GtkTreeView       *tree_view,
 254                                                        GtkRBTree         *tree,
 255                                                        GtkRBNode         *node);
 256 void         _gtk_tree_view_update_size               (GtkTreeView       *tree_view);
 257
 258
 259 void _gtk_tree_view_column_realize_button   (GtkTreeViewColumn *column);
 260 void _gtk_tree_view_column_unrealize_button (GtkTreeViewColumn *column);
 261 void _gtk_tree_view_column_set_tree_view    (GtkTreeViewColumn *column,
 262                                              GtkTreeView       *tree_view);
 263 void _gtk_tree_view_column_unset_tree_view  (GtkTreeViewColumn *column);
 264 void _gtk_tree_view_column_set_width        (GtkTreeViewColumn *column,
 265                                              gint               width);
 266 void _gtk_tree_view_column_start_drag       (GtkTreeView       *tree_view,
 267                                              GtkTreeViewColumn *column);
 268
 269 GtkTreeSelection* _gtk_tree_selection_new                (void);
 270 GtkTreeSelection* _gtk_tree_selection_new_with_tree_view (GtkTreeView      *tree_view);
 271 void              _gtk_tree_selection_set_tree_view      (GtkTreeSelection *selection,
 272                                                           GtkTreeView      *tree_view);
 273
 274
 275
 276
 277 #ifdef __cplusplus
 278 }
 279 #endif /* __cplusplus */
 280
 281
 282 #endif /* __GTK_TREE_PRIVATE_H__ */
 283