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

   1 /* gtktreeviewcolumn.c
   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 #include "config.h"
  21
  22 #include "gtktreeviewcolumn.h"
  23
  24 #include <string.h>
  25
  26 #include "gtktreeview.h"
  27 #include "gtktreeprivate.h"
  28 #include "gtkcelllayout.h"
  29 #include "gtkbutton.h"
  30 #include "gtkalignment.h"
  31 #include "gtklabel.h"
  32 #include "gtkhbox.h"
  33 #include "gtkmarshalers.h"
  34 #include "gtkarrow.h"
  35 #include "gtkcellareacontext.h"
  36 #include "gtkcellareabox.h"
  37 #include "gtkprivate.h"
  38 #include "gtkintl.h"
  39
  40
  41 /**
  42  * SECTION:gtktreeviewcolumn
  43  * @Short_description: A visible column in a GtkTreeView widget
  44  * @Title: GtkTreeViewColumn
  45  * @See_also: #GtkTreeView, #GtkTreeSelection, #GtkTreeDnd, #GtkTreeMode, #GtkTreeSortable,
  46  *   #GtkTreeModelSort, #GtkListStore, #GtkTreeStore, #GtkCellRenderer, #GtkCellEditable,
  47  *   #GtkCellRendererPixbuf, #GtkCellRendererText, #GtkCellRendererToggle
  48  *
  49  * The GtkTreeViewColumn object represents a visible column in a #GtkTreeView widget.
  50  * It allows to set properties of the column header, and functions as a holding pen for
  51  * the cell renderers which determine how the data in the column is displayed.
  52  *
  53  * Please refer to the <link linkend="TreeWidget">tree widget conceptual overview</link>
  54  * for an overview of all the objects and data types related to the tree widget and how
  55  * they work together.
  56  */
  57
  58
  59 /* Type methods */
  60 static void gtk_tree_view_column_cell_layout_init              (GtkCellLayoutIface      *iface);
  61
  62 /* GObject methods */
  63 static void gtk_tree_view_column_set_property                  (GObject                 *object,
  64                                                                 guint                    prop_id,
  65                                                                 const GValue            *value,
  66                                                                 GParamSpec              *pspec);
  67 static void gtk_tree_view_column_get_property                  (GObject                 *object,
  68                                                                 guint                    prop_id,
  69                                                                 GValue                  *value,
  70                                                                 GParamSpec              *pspec);
  71 static void gtk_tree_view_column_finalize                      (GObject                 *object);
  72 static void gtk_tree_view_column_dispose                       (GObject                 *object);
  73 static GObject *gtk_tree_view_column_constructor               (GType                    type,
  74                                                                 guint                    n_construct_properties,
  75                                                                 GObjectConstructParam   *construct_properties);
  76
  77 /* GtkCellLayout implementation */
  78 static GtkCellArea *gtk_tree_view_column_cell_layout_get_area  (GtkCellLayout           *cell_layout);
  79
  80 /* Button handling code */
  81 static void gtk_tree_view_column_create_button                 (GtkTreeViewColumn       *tree_column);
  82 static void gtk_tree_view_column_update_button                 (GtkTreeViewColumn       *tree_column);
  83
  84 /* Button signal handlers */
  85 static gint gtk_tree_view_column_button_event                  (GtkWidget               *widget,
  86                                                                 GdkEvent                *event,
  87                                                                 gpointer                 data);
  88 static void gtk_tree_view_column_button_clicked                (GtkWidget               *widget,
  89                                                                 gpointer                 data);
  90 static gboolean gtk_tree_view_column_mnemonic_activate         (GtkWidget *widget,
  91                                                                 gboolean   group_cycling,
  92                                                                 gpointer   data);
  93
  94 /* Property handlers */
  95 static void gtk_tree_view_model_sort_column_changed            (GtkTreeSortable         *sortable,
  96                                                                 GtkTreeViewColumn       *tree_column);
  97
  98 /* GtkCellArea/GtkCellAreaContext callbacks */
  99 static void gtk_tree_view_column_context_changed               (GtkCellAreaContext      *context,
 100                                                                 GParamSpec              *pspec,
 101                                                                 GtkTreeViewColumn       *tree_column);
 102 static void gtk_tree_view_column_add_editable_callback         (GtkCellArea             *area,
 103                                                                 GtkCellRenderer         *renderer,
 104                                                                 GtkCellEditable         *edit_widget,
 105                                                                 GdkRectangle            *cell_area,
 106                                                                 const gchar             *path_string,
 107                                                                 gpointer                 user_data);
 108 static void gtk_tree_view_column_remove_editable_callback      (GtkCellArea             *area,
 109                                                                 GtkCellRenderer         *renderer,
 110                                                                 GtkCellEditable         *edit_widget,
 111                                                                 gpointer                 user_data);
 112
 113 /* Internal functions */
 114 static void gtk_tree_view_column_sort                          (GtkTreeViewColumn       *tree_column,
 115                                                                 gpointer                 data);
 116 static void gtk_tree_view_column_setup_sort_column_id_callback (GtkTreeViewColumn       *tree_column);
 117 static void gtk_tree_view_column_set_attributesv               (GtkTreeViewColumn       *tree_column,
 118                                                                 GtkCellRenderer         *cell_renderer,
 119                                                                 va_list                  args);
 120
 121 /* GtkBuildable implementation */
 122 static void gtk_tree_view_column_buildable_init                 (GtkBuildableIface     *iface);
 123
 124
 125 struct _GtkTreeViewColumnPrivate
 126 {
 127   GtkWidget *tree_view;
 128   GtkWidget *button;
 129   GtkWidget *child;
 130   GtkWidget *arrow;
 131   GtkWidget *alignment;
 132   GdkWindow *window;
 133   gfloat xalign;
 134   gulong property_changed_signal;
 135
 136   /* Sizing fields */
 137   /* see gtk+/doc/tree-column-sizing.txt for more information on them */
 138   GtkTreeViewColumnSizing column_type;
 139   gint requested_width;
 140   gint resized_width;
 141   gint width;
 142   gint fixed_width;
 143   gint min_width;
 144   gint max_width;
 145
 146   /* dragging columns */
 147   gint drag_x;
 148   gint drag_y;
 149
 150   gchar *title;
 151
 152   /* Sorting */
 153   gulong      sort_clicked_signal;
 154   gulong      sort_column_changed_signal;
 155   gint        sort_column_id;
 156   GtkSortType sort_order;
 157
 158   /* Cell area */
 159   GtkCellArea        *cell_area;
 160   GtkCellAreaContext *cell_area_context;
 161   gulong              add_editable_signal;
 162   gulong              remove_editable_signal;
 163   gulong              context_changed_signal;
 164
 165   /* Flags */
 166   guint visible             : 1;
 167   guint resizable           : 1;
 168   guint clickable           : 1;
 169   guint dirty               : 1;
 170   guint show_sort_indicator : 1;
 171   guint maybe_reordered     : 1;
 172   guint reorderable         : 1;
 173   guint use_resized_width   : 1;
 174   guint expand              : 1;
 175 };
 176
 177 enum
 178 {
 179   PROP_0,
 180   PROP_VISIBLE,
 181   PROP_RESIZABLE,
 182   PROP_WIDTH,
 183   PROP_SPACING,
 184   PROP_SIZING,
 185   PROP_FIXED_WIDTH,
 186   PROP_MIN_WIDTH,
 187   PROP_MAX_WIDTH,
 188   PROP_TITLE,
 189   PROP_EXPAND,
 190   PROP_CLICKABLE,
 191   PROP_WIDGET,
 192   PROP_ALIGNMENT,
 193   PROP_REORDERABLE,
 194   PROP_SORT_INDICATOR,
 195   PROP_SORT_ORDER,
 196   PROP_SORT_COLUMN_ID,
 197   PROP_CELL_AREA
 198 };
 199
 200 enum
 201 {
 202   CLICKED,
 203   LAST_SIGNAL
 204 };
 205
 206 static guint tree_column_signals[LAST_SIGNAL] = { 0 };
 207
 208 G_DEFINE_TYPE_WITH_CODE (GtkTreeViewColumn, gtk_tree_view_column, G_TYPE_INITIALLY_UNOWNED,
 209                          G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT,
 210                                                 gtk_tree_view_column_cell_layout_init)
 211                          G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
 212                                                 gtk_tree_view_column_buildable_init))
 213
 214
 215 static void
 216 gtk_tree_view_column_class_init (GtkTreeViewColumnClass *class)
 217 {
 218   GObjectClass *object_class;
 219
 220   object_class = (GObjectClass*) class;
 221
 222   class->clicked = NULL;
 223
 224   object_class->constructor = gtk_tree_view_column_constructor;
 225   object_class->finalize = gtk_tree_view_column_finalize;
 226   object_class->dispose = gtk_tree_view_column_dispose;
 227   object_class->set_property = gtk_tree_view_column_set_property;
 228   object_class->get_property = gtk_tree_view_column_get_property;
 229
 230   tree_column_signals[CLICKED] =
 231     g_signal_new (I_("clicked"),
 232                   G_OBJECT_CLASS_TYPE (object_class),
 233                   G_SIGNAL_RUN_LAST,
 234                   G_STRUCT_OFFSET (GtkTreeViewColumnClass, clicked),
 235                   NULL, NULL,
 236                   _gtk_marshal_VOID__VOID,
 237                   G_TYPE_NONE, 0);
 238
 239   g_object_class_install_property (object_class,
 240                                    PROP_VISIBLE,
 241                                    g_param_spec_boolean ("visible",
 242                                                         P_("Visible"),
 243                                                         P_("Whether to display the column"),
 244                                                          TRUE,
 245                                                          GTK_PARAM_READWRITE));
 246
 247   g_object_class_install_property (object_class,
 248                                    PROP_RESIZABLE,
 249                                    g_param_spec_boolean ("resizable",
 250                                                          P_("Resizable"),
 251                                                          P_("Column is user-resizable"),
 252                                                          FALSE,
 253                                                          GTK_PARAM_READWRITE));
 254
 255   g_object_class_install_property (object_class,
 256                                    PROP_WIDTH,
 257                                    g_param_spec_int ("width",
 258                                                      P_("Width"),
 259                                                      P_("Current width of the column"),
 260                                                      0,
 261                                                      G_MAXINT,
 262                                                      0,
 263                                                      GTK_PARAM_READABLE));
 264   g_object_class_install_property (object_class,
 265                                    PROP_SPACING,
 266                                    g_param_spec_int ("spacing",
 267                                                      P_("Spacing"),
 268                                                      P_("Space which is inserted between cells"),
 269                                                      0,
 270                                                      G_MAXINT,
 271                                                      0,
 272                                                      GTK_PARAM_READWRITE));
 273   g_object_class_install_property (object_class,
 274                                    PROP_SIZING,
 275                                    g_param_spec_enum ("sizing",
 276                                                       P_("Sizing"),
 277                                                       P_("Resize mode of the column"),
 278                                                       GTK_TYPE_TREE_VIEW_COLUMN_SIZING,
 279                                                       GTK_TREE_VIEW_COLUMN_GROW_ONLY,
 280                                                       GTK_PARAM_READWRITE));
 281
 282   g_object_class_install_property (object_class,
 283                                    PROP_FIXED_WIDTH,
 284                                    g_param_spec_int ("fixed-width",
 285                                                      P_("Fixed Width"),
 286                                                      P_("Current fixed width of the column"),
 287                                                      1,
 288                                                      G_MAXINT,
 289                                                      1, /* not useful */
 290                                                      GTK_PARAM_READWRITE));
 291
 292   g_object_class_install_property (object_class,
 293                                    PROP_MIN_WIDTH,
 294                                    g_param_spec_int ("min-width",
 295                                                      P_("Minimum Width"),
 296                                                      P_("Minimum allowed width of the column"),
 297                                                      -1,
 298                                                      G_MAXINT,
 299                                                      -1,
 300                                                      GTK_PARAM_READWRITE));
 301
 302   g_object_class_install_property (object_class,
 303                                    PROP_MAX_WIDTH,
 304                                    g_param_spec_int ("max-width",
 305                                                      P_("Maximum Width"),
 306                                                      P_("Maximum allowed width of the column"),
 307                                                      -1,
 308                                                      G_MAXINT,
 309                                                      -1,
 310                                                      GTK_PARAM_READWRITE));
 311
 312   g_object_class_install_property (object_class,
 313                                    PROP_TITLE,
 314                                    g_param_spec_string ("title",
 315                                                         P_("Title"),
 316                                                         P_("Title to appear in column header"),
 317                                                         "",
 318                                                         GTK_PARAM_READWRITE));
 319
 320   g_object_class_install_property (object_class,
 321                                    PROP_EXPAND,
 322                                    g_param_spec_boolean ("expand",
 323                                                          P_("Expand"),
 324                                                          P_("Column gets share of extra width allocated to the widget"),
 325                                                          FALSE,
 326                                                          GTK_PARAM_READWRITE));
 327
 328   g_object_class_install_property (object_class,
 329                                    PROP_CLICKABLE,
 330                                    g_param_spec_boolean ("clickable",
 331                                                         P_("Clickable"),
 332                                                         P_("Whether the header can be clicked"),
 333                                                          FALSE,
 334                                                          GTK_PARAM_READWRITE));
 335
 336
 337   g_object_class_install_property (object_class,
 338                                    PROP_WIDGET,
 339                                    g_param_spec_object ("widget",
 340                                                         P_("Widget"),
 341                                                         P_("Widget to put in column header button instead of column title"),
 342                                                         GTK_TYPE_WIDGET,
 343                                                         GTK_PARAM_READWRITE));
 344
 345   g_object_class_install_property (object_class,
 346                                    PROP_ALIGNMENT,
 347                                    g_param_spec_float ("alignment",
 348                                                        P_("Alignment"),
 349                                                        P_("X Alignment of the column header text or widget"),
 350                                                        0.0,
 351                                                        1.0,
 352                                                        0.0,
 353                                                        GTK_PARAM_READWRITE));
 354
 355   g_object_class_install_property (object_class,
 356                                    PROP_REORDERABLE,
 357                                    g_param_spec_boolean ("reorderable",
 358                                                          P_("Reorderable"),
 359                                                          P_("Whether the column can be reordered around the headers"),
 360                                                          FALSE,
 361                                                          GTK_PARAM_READWRITE));
 362
 363   g_object_class_install_property (object_class,
 364                                    PROP_SORT_INDICATOR,
 365                                    g_param_spec_boolean ("sort-indicator",
 366                                                         P_("Sort indicator"),
 367                                                         P_("Whether to show a sort indicator"),
 368                                                          FALSE,
 369                                                          GTK_PARAM_READWRITE));
 370
 371   g_object_class_install_property (object_class,
 372                                    PROP_SORT_ORDER,
 373                                    g_param_spec_enum ("sort-order",
 374                                                       P_("Sort order"),
 375                                                       P_("Sort direction the sort indicator should indicate"),
 376                                                       GTK_TYPE_SORT_TYPE,
 377                                                       GTK_SORT_ASCENDING,
 378                                                       GTK_PARAM_READWRITE));
 379
 380   /**
 381    * GtkTreeViewColumn:sort-column-id:
 382    *
 383    * Logical sort column ID this column sorts on when selected for sorting. Setting the sort column ID makes the column header
 384    * clickable. Set to %-1 to make the column unsortable.
 385    *
 386    * Since: 2.18
 387    **/
 388   g_object_class_install_property (object_class,
 389                                    PROP_SORT_COLUMN_ID,
 390                                    g_param_spec_int ("sort-column-id",
 391                                                      P_("Sort column ID"),
 392                                                      P_("Logical sort column ID this column sorts on when selected for sorting"),
 393                                                      -1,
 394                                                      G_MAXINT,
 395                                                      -1,
 396                                                      GTK_PARAM_READWRITE));
 397
 398   /**
 399    * GtkTreeViewColumn:cell-area:
 400    *
 401    * The #GtkCellArea used to layout cell renderers for this column.
 402    *
 403    * Since: 3.0
 404    */
 405   g_object_class_install_property (object_class,
 406                                    PROP_CELL_AREA,
 407                                    g_param_spec_object ("cell-area",
 408                                                         P_("Cell Area"),
 409                                                         P_("The GtkCellArea used to layout cells"),
 410                                                         GTK_TYPE_CELL_AREA,
 411                                                         GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
 412
 413   g_type_class_add_private (class, sizeof (GtkTreeViewColumnPrivate));
 414 }
 415
 416 static void
 417 gtk_tree_view_column_custom_tag_end (GtkBuildable *buildable,
 418                                      GtkBuilder   *builder,
 419                                      GObject      *child,
 420                                      const gchar  *tagname,
 421                                      gpointer     *data)
 422 {
 423   /* Just ignore the boolean return from here */
 424   _gtk_cell_layout_buildable_custom_tag_end (buildable, builder, child, tagname, data);
 425 }
 426
 427 static void
 428 gtk_tree_view_column_buildable_init (GtkBuildableIface *iface)
 429 {
 430   iface->add_child = _gtk_cell_layout_buildable_add_child;
 431   iface->custom_tag_start = _gtk_cell_layout_buildable_custom_tag_start;
 432   iface->custom_tag_end = gtk_tree_view_column_custom_tag_end;
 433 }
 434
 435 static void
 436 gtk_tree_view_column_cell_layout_init (GtkCellLayoutIface *iface)
 437 {
 438   iface->get_area = gtk_tree_view_column_cell_layout_get_area;
 439 }
 440
 441 static void
 442 gtk_tree_view_column_init (GtkTreeViewColumn *tree_column)
 443 {
 444   GtkTreeViewColumnPrivate *priv;
 445
 446   tree_column->priv = G_TYPE_INSTANCE_GET_PRIVATE (tree_column,
 447                                                    GTK_TYPE_TREE_VIEW_COLUMN,
 448                                                    GtkTreeViewColumnPrivate);
 449   priv = tree_column->priv;
 450
 451   priv->button = NULL;
 452   priv->xalign = 0.0;
 453   priv->width = 0;
 454   priv->requested_width = -1;
 455   priv->min_width = -1;
 456   priv->max_width = -1;
 457   priv->resized_width = 0;
 458   priv->column_type = GTK_TREE_VIEW_COLUMN_GROW_ONLY;
 459   priv->visible = TRUE;
 460   priv->resizable = FALSE;
 461   priv->expand = FALSE;
 462   priv->clickable = FALSE;
 463   priv->dirty = TRUE;
 464   priv->sort_order = GTK_SORT_ASCENDING;
 465   priv->show_sort_indicator = FALSE;
 466   priv->property_changed_signal = 0;
 467   priv->sort_clicked_signal = 0;
 468   priv->sort_column_changed_signal = 0;
 469   priv->sort_column_id = -1;
 470   priv->reorderable = FALSE;
 471   priv->maybe_reordered = FALSE;
 472   priv->fixed_width = 1;
 473   priv->use_resized_width = FALSE;
 474   priv->title = g_strdup ("");
 475 }
 476
 477 static GObject *
 478 gtk_tree_view_column_constructor (GType                    type,
 479                                   guint                    n_construct_properties,
 480                                   GObjectConstructParam   *construct_properties)
 481 {
 482   GtkTreeViewColumn        *tree_column;
 483   GtkTreeViewColumnPrivate *priv;
 484   GObject                  *object;
 485
 486   object = G_OBJECT_CLASS (gtk_tree_view_column_parent_class)->constructor
 487     (type, n_construct_properties, construct_properties);
 488
 489   tree_column = (GtkTreeViewColumn *) object;
 490   priv        = tree_column->priv;
 491
 492   if (!priv->cell_area)
 493     {
 494       priv->cell_area = gtk_cell_area_box_new ();
 495       g_object_ref_sink (priv->cell_area);
 496     }
 497
 498   gtk_cell_area_set_style_detail (priv->cell_area, "treeview");
 499
 500   priv->add_editable_signal =
 501     g_signal_connect (priv->cell_area, "add-editable",
 502                       G_CALLBACK (gtk_tree_view_column_add_editable_callback),
 503                       tree_column);
 504   priv->remove_editable_signal =
 505     g_signal_connect (priv->cell_area, "remove-editable",
 506                       G_CALLBACK (gtk_tree_view_column_remove_editable_callback),
 507                       tree_column);
 508
 509   priv->cell_area_context = gtk_cell_area_create_context (priv->cell_area);
 510
 511   priv->context_changed_signal =
 512     g_signal_connect (priv->cell_area_context, "notify",
 513                       G_CALLBACK (gtk_tree_view_column_context_changed), tree_column);
 514
 515   return object;
 516 }
 517
 518 static void
 519 gtk_tree_view_column_dispose (GObject *object)
 520 {
 521   GtkTreeViewColumn        *tree_column = (GtkTreeViewColumn *) object;
 522   GtkTreeViewColumnPrivate *priv        = tree_column->priv;
 523
 524   if (priv->cell_area_context)
 525     {
 526       g_signal_handler_disconnect (priv->cell_area_context,
 527                                    priv->context_changed_signal);
 528
 529       g_object_unref (priv->cell_area_context);
 530
 531       priv->cell_area_context = NULL;
 532       priv->context_changed_signal = 0;
 533     }
 534
 535   if (priv->cell_area)
 536     {
 537       g_signal_handler_disconnect (priv->cell_area,
 538                                    priv->add_editable_signal);
 539       g_signal_handler_disconnect (priv->cell_area,
 540                                    priv->remove_editable_signal);
 541
 542       g_object_unref (priv->cell_area);
 543       priv->cell_area = NULL;
 544       priv->add_editable_signal = 0;
 545       priv->remove_editable_signal = 0;
 546     }
 547
 548   if (priv->child)
 549     {
 550       g_object_unref (priv->child);
 551       priv->child = NULL;
 552     }
 553
 554   G_OBJECT_CLASS (gtk_tree_view_column_parent_class)->dispose (object);
 555 }
 556
 557 static void
 558 gtk_tree_view_column_finalize (GObject *object)
 559 {
 560   GtkTreeViewColumn        *tree_column = (GtkTreeViewColumn *) object;
 561   GtkTreeViewColumnPrivate *priv        = tree_column->priv;
 562
 563   g_free (priv->title);
 564
 565   G_OBJECT_CLASS (gtk_tree_view_column_parent_class)->finalize (object);
 566 }
 567
 568 static void
 569 gtk_tree_view_column_set_property (GObject         *object,
 570                                    guint            prop_id,
 571                                    const GValue    *value,
 572                                    GParamSpec      *pspec)
 573 {
 574   GtkTreeViewColumn *tree_column;
 575   GtkCellArea       *area;
 576
 577   tree_column = GTK_TREE_VIEW_COLUMN (object);
 578
 579   switch (prop_id)
 580     {
 581     case PROP_VISIBLE:
 582       gtk_tree_view_column_set_visible (tree_column,
 583                                         g_value_get_boolean (value));
 584       break;
 585
 586     case PROP_RESIZABLE:
 587       gtk_tree_view_column_set_resizable (tree_column,
 588                                           g_value_get_boolean (value));
 589       break;
 590
 591     case PROP_SIZING:
 592       gtk_tree_view_column_set_sizing (tree_column,
 593                                        g_value_get_enum (value));
 594       break;
 595
 596     case PROP_FIXED_WIDTH:
 597       gtk_tree_view_column_set_fixed_width (tree_column,
 598                                             g_value_get_int (value));
 599       break;
 600
 601     case PROP_MIN_WIDTH:
 602       gtk_tree_view_column_set_min_width (tree_column,
 603                                           g_value_get_int (value));
 604       break;
 605
 606     case PROP_MAX_WIDTH:
 607       gtk_tree_view_column_set_max_width (tree_column,
 608                                           g_value_get_int (value));
 609       break;
 610
 611     case PROP_SPACING:
 612       gtk_tree_view_column_set_spacing (tree_column,
 613                                         g_value_get_int (value));
 614       break;
 615
 616     case PROP_TITLE:
 617       gtk_tree_view_column_set_title (tree_column,
 618                                       g_value_get_string (value));
 619       break;
 620
 621     case PROP_EXPAND:
 622       gtk_tree_view_column_set_expand (tree_column,
 623                                        g_value_get_boolean (value));
 624       break;
 625
 626     case PROP_CLICKABLE:
 627       gtk_tree_view_column_set_clickable (tree_column,
 628                                           g_value_get_boolean (value));
 629       break;
 630
 631     case PROP_WIDGET:
 632       gtk_tree_view_column_set_widget (tree_column,
 633                                        (GtkWidget*) g_value_get_object (value));
 634       break;
 635
 636     case PROP_ALIGNMENT:
 637       gtk_tree_view_column_set_alignment (tree_column,
 638                                           g_value_get_float (value));
 639       break;
 640
 641     case PROP_REORDERABLE:
 642       gtk_tree_view_column_set_reorderable (tree_column,
 643                                             g_value_get_boolean (value));
 644       break;
 645
 646     case PROP_SORT_INDICATOR:
 647       gtk_tree_view_column_set_sort_indicator (tree_column,
 648                                                g_value_get_boolean (value));
 649       break;
 650
 651     case PROP_SORT_ORDER:
 652       gtk_tree_view_column_set_sort_order (tree_column,
 653                                            g_value_get_enum (value));
 654       break;
 655
 656     case PROP_SORT_COLUMN_ID:
 657       gtk_tree_view_column_set_sort_column_id (tree_column,
 658                                                g_value_get_int (value));
 659       break;
 660
 661     case PROP_CELL_AREA:
 662       /* Construct-only, can only be assigned once */
 663       area = g_value_get_object (value);
 664
 665       if (area)
 666         tree_column->priv->cell_area = g_object_ref_sink (area);
 667       break;
 668
 669     default:
 670       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 671       break;
 672     }
 673 }
 674
 675 static void
 676 gtk_tree_view_column_get_property (GObject         *object,
 677                                    guint            prop_id,
 678                                    GValue          *value,
 679                                    GParamSpec      *pspec)
 680 {
 681   GtkTreeViewColumn *tree_column;
 682
 683   tree_column = GTK_TREE_VIEW_COLUMN (object);
 684
 685   switch (prop_id)
 686     {
 687     case PROP_VISIBLE:
 688       g_value_set_boolean (value,
 689                            gtk_tree_view_column_get_visible (tree_column));
 690       break;
 691
 692     case PROP_RESIZABLE:
 693       g_value_set_boolean (value,
 694                            gtk_tree_view_column_get_resizable (tree_column));
 695       break;
 696
 697     case PROP_WIDTH:
 698       g_value_set_int (value,
 699                        gtk_tree_view_column_get_width (tree_column));
 700       break;
 701
 702     case PROP_SPACING:
 703       g_value_set_int (value,
 704                        gtk_tree_view_column_get_spacing (tree_column));
 705       break;
 706
 707     case PROP_SIZING:
 708       g_value_set_enum (value,
 709                         gtk_tree_view_column_get_sizing (tree_column));
 710       break;
 711
 712     case PROP_FIXED_WIDTH:
 713       g_value_set_int (value,
 714                        gtk_tree_view_column_get_fixed_width (tree_column));
 715       break;
 716
 717     case PROP_MIN_WIDTH:
 718       g_value_set_int (value,
 719                        gtk_tree_view_column_get_min_width (tree_column));
 720       break;
 721
 722     case PROP_MAX_WIDTH:
 723       g_value_set_int (value,
 724                        gtk_tree_view_column_get_max_width (tree_column));
 725       break;
 726
 727     case PROP_TITLE:
 728       g_value_set_string (value,
 729                           gtk_tree_view_column_get_title (tree_column));
 730       break;
 731
 732     case PROP_EXPAND:
 733       g_value_set_boolean (value,
 734                           gtk_tree_view_column_get_expand (tree_column));
 735       break;
 736
 737     case PROP_CLICKABLE:
 738       g_value_set_boolean (value,
 739                            gtk_tree_view_column_get_clickable (tree_column));
 740       break;
 741
 742     case PROP_WIDGET:
 743       g_value_set_object (value,
 744                           (GObject*) gtk_tree_view_column_get_widget (tree_column));
 745       break;
 746
 747     case PROP_ALIGNMENT:
 748       g_value_set_float (value,
 749                          gtk_tree_view_column_get_alignment (tree_column));
 750       break;
 751
 752     case PROP_REORDERABLE:
 753       g_value_set_boolean (value,
 754                            gtk_tree_view_column_get_reorderable (tree_column));
 755       break;
 756
 757     case PROP_SORT_INDICATOR:
 758       g_value_set_boolean (value,
 759                            gtk_tree_view_column_get_sort_indicator (tree_column));
 760       break;
 761
 762     case PROP_SORT_ORDER:
 763       g_value_set_enum (value,
 764                         gtk_tree_view_column_get_sort_order (tree_column));
 765       break;
 766
 767     case PROP_SORT_COLUMN_ID:
 768       g_value_set_int (value,
 769                        gtk_tree_view_column_get_sort_column_id (tree_column));
 770       break;
 771
 772     case PROP_CELL_AREA:
 773       g_value_set_object (value, tree_column->priv->cell_area);
 774       break;
 775
 776     default:
 777       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 778       break;
 779     }
 780 }
 781
 782 /* Implementation of GtkCellLayout interface
 783  */
 784 static GtkCellArea *
 785 gtk_tree_view_column_cell_layout_get_area (GtkCellLayout   *cell_layout)
 786 {
 787   GtkTreeViewColumn        *column = GTK_TREE_VIEW_COLUMN (cell_layout);
 788   GtkTreeViewColumnPrivate *priv   = column->priv;
 789
 790   return priv->cell_area;
 791 }
 792
 793 /* Button handling code
 794  */
 795 static void
 796 gtk_tree_view_column_create_button (GtkTreeViewColumn *tree_column)
 797 {
 798   GtkTreeViewColumnPrivate *priv = tree_column->priv;
 799   GtkTreeView *tree_view;
 800   GtkWidget *child;
 801   GtkWidget *hbox;
 802
 803   tree_view = (GtkTreeView *) priv->tree_view;
 804
 805   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
 806   g_return_if_fail (priv->button == NULL);
 807
 808   gtk_widget_push_composite_child ();
 809   priv->button = gtk_button_new ();
 810   gtk_widget_add_events (priv->button, GDK_POINTER_MOTION_MASK);
 811   gtk_widget_pop_composite_child ();
 812
 813   /* make sure we own a reference to it as well. */
 814   if (_gtk_tree_view_get_header_window (tree_view))
 815     gtk_widget_set_parent_window (priv->button, _gtk_tree_view_get_header_window (tree_view));
 816
 817   gtk_widget_set_parent (priv->button, GTK_WIDGET (tree_view));
 818
 819   g_signal_connect (priv->button, "event",
 820                     G_CALLBACK (gtk_tree_view_column_button_event),
 821                     tree_column);
 822   g_signal_connect (priv->button, "clicked",
 823                     G_CALLBACK (gtk_tree_view_column_button_clicked),
 824                     tree_column);
 825
 826   priv->alignment = gtk_alignment_new (priv->xalign, 0.5, 0.0, 0.0);
 827
 828   hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 2);
 829   priv->arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_IN);
 830
 831   if (priv->child)
 832     child = priv->child;
 833   else
 834     {
 835       child = gtk_label_new (priv->title);
 836       gtk_widget_show (child);
 837     }
 838
 839   g_signal_connect (child, "mnemonic-activate",
 840                     G_CALLBACK (gtk_tree_view_column_mnemonic_activate),
 841                     tree_column);
 842
 843   if (priv->xalign <= 0.5)
 844     gtk_box_pack_end (GTK_BOX (hbox), priv->arrow, FALSE, FALSE, 0);
 845   else
 846     gtk_box_pack_start (GTK_BOX (hbox), priv->arrow, FALSE, FALSE, 0);
 847
 848   gtk_box_pack_start (GTK_BOX (hbox), priv->alignment, TRUE, TRUE, 0);
 849
 850   gtk_container_add (GTK_CONTAINER (priv->alignment), child);
 851   gtk_container_add (GTK_CONTAINER (priv->button), hbox);
 852
 853   gtk_widget_show (hbox);
 854   gtk_widget_show (priv->alignment);
 855   gtk_tree_view_column_update_button (tree_column);
 856 }
 857
 858 static void
 859 gtk_tree_view_column_update_button (GtkTreeViewColumn *tree_column)
 860 {
 861   GtkTreeViewColumnPrivate *priv = tree_column->priv;
 862   gint sort_column_id = -1;
 863   GtkWidget *hbox;
 864   GtkWidget *alignment;
 865   GtkWidget *arrow;
 866   GtkWidget *current_child;
 867   GtkArrowType arrow_type = GTK_ARROW_NONE;
 868   GtkTreeModel *model;
 869
 870   if (priv->tree_view)
 871     model = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
 872   else
 873     model = NULL;
 874
 875   /* Create a button if necessary */
 876   if (priv->visible &&
 877       priv->button == NULL &&
 878       priv->tree_view &&
 879       gtk_widget_get_realized (priv->tree_view))
 880     gtk_tree_view_column_create_button (tree_column);
 881
 882   if (! priv->button)
 883     return;
 884
 885   hbox = gtk_bin_get_child (GTK_BIN (priv->button));
 886   alignment = priv->alignment;
 887   arrow = priv->arrow;
 888   current_child = gtk_bin_get_child (GTK_BIN (alignment));
 889
 890   /* Set up the actual button */
 891   gtk_alignment_set (GTK_ALIGNMENT (alignment), priv->xalign,
 892                      0.5, 0.0, 0.0);
 893
 894   if (priv->child)
 895     {
 896       if (current_child != priv->child)
 897         {
 898           gtk_container_remove (GTK_CONTAINER (alignment),
 899                                 current_child);
 900           gtk_container_add (GTK_CONTAINER (alignment),
 901                              priv->child);
 902         }
 903     }
 904   else
 905     {
 906       if (current_child == NULL)
 907         {
 908           current_child = gtk_label_new (NULL);
 909           gtk_widget_show (current_child);
 910           gtk_container_add (GTK_CONTAINER (alignment),
 911                              current_child);
 912         }
 913
 914       g_return_if_fail (GTK_IS_LABEL (current_child));
 915
 916       if (priv->title)
 917         gtk_label_set_text_with_mnemonic (GTK_LABEL (current_child),
 918                                           priv->title);
 919       else
 920         gtk_label_set_text_with_mnemonic (GTK_LABEL (current_child),
 921                                           "");
 922     }
 923
 924   if (GTK_IS_TREE_SORTABLE (model))
 925     gtk_tree_sortable_get_sort_column_id (GTK_TREE_SORTABLE (model),
 926                                           &sort_column_id,
 927                                           NULL);
 928
 929   if (priv->show_sort_indicator)
 930     {
 931       gboolean alternative;
 932
 933       g_object_get (gtk_widget_get_settings (priv->tree_view),
 934                     "gtk-alternative-sort-arrows", &alternative,
 935                     NULL);
 936
 937       switch (priv->sort_order)
 938         {
 939           case GTK_SORT_ASCENDING:
 940             arrow_type = alternative ? GTK_ARROW_UP : GTK_ARROW_DOWN;
 941             break;
 942
 943           case GTK_SORT_DESCENDING:
 944             arrow_type = alternative ? GTK_ARROW_DOWN : GTK_ARROW_UP;
 945             break;
 946
 947           default:
 948             g_warning (G_STRLOC": bad sort order");
 949             break;
 950         }
 951     }
 952
 953   gtk_arrow_set (GTK_ARROW (arrow),
 954                  arrow_type,
 955                  GTK_SHADOW_IN);
 956
 957   /* Put arrow on the right if the text is left-or-center justified, and on the
 958    * left otherwise; do this by packing boxes, so flipping text direction will
 959    * reverse things
 960    */
 961   g_object_ref (arrow);
 962   gtk_container_remove (GTK_CONTAINER (hbox), arrow);
 963
 964   if (priv->xalign <= 0.5)
 965     {
 966       gtk_box_pack_end (GTK_BOX (hbox), arrow, FALSE, FALSE, 0);
 967     }
 968   else
 969     {
 970       gtk_box_pack_start (GTK_BOX (hbox), arrow, FALSE, FALSE, 0);
 971       /* move it to the front */
 972       gtk_box_reorder_child (GTK_BOX (hbox), arrow, 0);
 973     }
 974   g_object_unref (arrow);
 975
 976   if (priv->show_sort_indicator
 977       || (GTK_IS_TREE_SORTABLE (model) && priv->sort_column_id >= 0))
 978     gtk_widget_show (arrow);
 979   else
 980     gtk_widget_hide (arrow);
 981
 982   /* It's always safe to hide the button.  It isn't always safe to show it, as
 983    * if you show it before it's realized, it'll get the wrong window. */
 984   if (priv->button &&
 985       priv->tree_view != NULL &&
 986       gtk_widget_get_realized (priv->tree_view))
 987     {
 988       if (priv->visible)
 989         {
 990           gtk_widget_show_now (priv->button);
 991           if (priv->window)
 992             {
 993               if (priv->resizable)
 994                 {
 995                   gdk_window_show (priv->window);
 996                   gdk_window_raise (priv->window);
 997                 }
 998               else
 999                 {
1000                   gdk_window_hide (priv->window);
1001                 }
1002             }
1003         }
1004       else
1005         {
1006           gtk_widget_hide (priv->button);
1007           if (priv->window)
1008             gdk_window_hide (priv->window);
1009         }
1010     }
1011
1012   if (priv->reorderable || priv->clickable)
1013     {
1014       gtk_widget_set_can_focus (priv->button, TRUE);
1015     }
1016   else
1017     {
1018       gtk_widget_set_can_focus (priv->button, FALSE);
1019       if (gtk_widget_has_focus (priv->button))
1020         {
1021           GtkWidget *toplevel = gtk_widget_get_toplevel (priv->tree_view);
1022           if (gtk_widget_is_toplevel (toplevel))
1023             {
1024               gtk_window_set_focus (GTK_WINDOW (toplevel), NULL);
1025             }
1026         }
1027     }
1028   /* Queue a resize on the assumption that we always want to catch all changes
1029    * and columns don't change all that often.
1030    */
1031   if (gtk_widget_get_realized (priv->tree_view))
1032      gtk_widget_queue_resize (priv->tree_view);
1033
1034 }
1035
1036 /* Button signal handlers
1037  */
1038
1039 static gint
1040 gtk_tree_view_column_button_event (GtkWidget *widget,
1041                                    GdkEvent  *event,
1042                                    gpointer   data)
1043 {
1044   GtkTreeViewColumn        *column = (GtkTreeViewColumn *) data;
1045   GtkTreeViewColumnPrivate *priv   = column->priv;
1046
1047   g_return_val_if_fail (event != NULL, FALSE);
1048
1049   if (event->type == GDK_BUTTON_PRESS &&
1050       priv->reorderable &&
1051       ((GdkEventButton *)event)->button == 1)
1052     {
1053       priv->maybe_reordered = TRUE;
1054       gdk_window_get_pointer (gtk_button_get_event_window (GTK_BUTTON (widget)),
1055                               &priv->drag_x,
1056                               &priv->drag_y,
1057                               NULL);
1058       gtk_widget_grab_focus (widget);
1059     }
1060
1061   if (event->type == GDK_BUTTON_RELEASE ||
1062       event->type == GDK_LEAVE_NOTIFY)
1063     priv->maybe_reordered = FALSE;
1064
1065   if (event->type == GDK_MOTION_NOTIFY &&
1066       priv->maybe_reordered &&
1067       (gtk_drag_check_threshold (widget,
1068                                  priv->drag_x,
1069                                  priv->drag_y,
1070                                  (gint) ((GdkEventMotion *)event)->x,
1071                                  (gint) ((GdkEventMotion *)event)->y)))
1072     {
1073       priv->maybe_reordered = FALSE;
1074       _gtk_tree_view_column_start_drag (GTK_TREE_VIEW (priv->tree_view), column,
1075                                         event->motion.device);
1076       return TRUE;
1077     }
1078
1079   if (priv->clickable == FALSE)
1080     {
1081       switch (event->type)
1082         {
1083         case GDK_BUTTON_PRESS:
1084         case GDK_2BUTTON_PRESS:
1085         case GDK_3BUTTON_PRESS:
1086         case GDK_MOTION_NOTIFY:
1087         case GDK_BUTTON_RELEASE:
1088         case GDK_ENTER_NOTIFY:
1089         case GDK_LEAVE_NOTIFY:
1090           return TRUE;
1091         default:
1092           return FALSE;
1093         }
1094     }
1095   return FALSE;
1096 }
1097
1098
1099 static void
1100 gtk_tree_view_column_button_clicked (GtkWidget *widget, gpointer data)
1101 {
1102   g_signal_emit_by_name (data, "clicked");
1103 }
1104
1105 static gboolean
1106 gtk_tree_view_column_mnemonic_activate (GtkWidget *widget,
1107                                         gboolean   group_cycling,
1108                                         gpointer   data)
1109 {
1110   GtkTreeViewColumn        *column = (GtkTreeViewColumn *)data;
1111   GtkTreeViewColumnPrivate *priv   = column->priv;
1112
1113   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), FALSE);
1114
1115   _gtk_tree_view_set_focus_column (GTK_TREE_VIEW (priv->tree_view), column);
1116
1117   if (priv->clickable)
1118     gtk_button_clicked (GTK_BUTTON (priv->button));
1119   else if (gtk_widget_get_can_focus (priv->button))
1120     gtk_widget_grab_focus (priv->button);
1121   else
1122     gtk_widget_grab_focus (priv->tree_view);
1123
1124   return TRUE;
1125 }
1126
1127 static void
1128 gtk_tree_view_model_sort_column_changed (GtkTreeSortable   *sortable,
1129                                          GtkTreeViewColumn *column)
1130 {
1131   GtkTreeViewColumnPrivate *priv = column->priv;
1132   gint sort_column_id;
1133   GtkSortType order;
1134
1135   if (gtk_tree_sortable_get_sort_column_id (sortable,
1136                                             &sort_column_id,
1137                                             &order))
1138     {
1139       if (sort_column_id == priv->sort_column_id)
1140         {
1141           gtk_tree_view_column_set_sort_indicator (column, TRUE);
1142           gtk_tree_view_column_set_sort_order (column, order);
1143         }
1144       else
1145         {
1146           gtk_tree_view_column_set_sort_indicator (column, FALSE);
1147         }
1148     }
1149   else
1150     {
1151       gtk_tree_view_column_set_sort_indicator (column, FALSE);
1152     }
1153 }
1154
1155 static void
1156 gtk_tree_view_column_sort (GtkTreeViewColumn *tree_column,
1157                            gpointer           data)
1158 {
1159   GtkTreeViewColumnPrivate *priv = tree_column->priv;
1160   GtkTreeModel *model;
1161   GtkTreeSortable *sortable;
1162   gint sort_column_id;
1163   GtkSortType order;
1164   gboolean has_sort_column;
1165   gboolean has_default_sort_func;
1166
1167   g_return_if_fail (priv->tree_view != NULL);
1168
1169   model    = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
1170   sortable = GTK_TREE_SORTABLE (model);
1171
1172   has_sort_column =
1173     gtk_tree_sortable_get_sort_column_id (sortable,
1174                                           &sort_column_id,
1175                                           &order);
1176   has_default_sort_func =
1177     gtk_tree_sortable_has_default_sort_func (sortable);
1178
1179   if (has_sort_column &&
1180       sort_column_id == priv->sort_column_id)
1181     {
1182       if (order == GTK_SORT_ASCENDING)
1183         gtk_tree_sortable_set_sort_column_id (sortable,
1184                                               priv->sort_column_id,
1185                                               GTK_SORT_DESCENDING);
1186       else if (order == GTK_SORT_DESCENDING && has_default_sort_func)
1187         gtk_tree_sortable_set_sort_column_id (sortable,
1188                                               GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID,
1189                                               GTK_SORT_ASCENDING);
1190       else
1191         gtk_tree_sortable_set_sort_column_id (sortable,
1192                                               priv->sort_column_id,
1193                                               GTK_SORT_ASCENDING);
1194     }
1195   else
1196     {
1197       gtk_tree_sortable_set_sort_column_id (sortable,
1198                                             priv->sort_column_id,
1199                                             GTK_SORT_ASCENDING);
1200     }
1201 }
1202
1203 static void
1204 gtk_tree_view_column_setup_sort_column_id_callback (GtkTreeViewColumn *tree_column)
1205 {
1206   GtkTreeViewColumnPrivate *priv = tree_column->priv;
1207   GtkTreeModel *model;
1208
1209   if (priv->tree_view == NULL)
1210     return;
1211
1212   model = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
1213
1214   if (model == NULL)
1215     return;
1216
1217   if (GTK_IS_TREE_SORTABLE (model) &&
1218       priv->sort_column_id != -1)
1219     {
1220       gint real_sort_column_id;
1221       GtkSortType real_order;
1222
1223       if (priv->sort_column_changed_signal == 0)
1224         priv->sort_column_changed_signal =
1225           g_signal_connect (model, "sort-column-changed",
1226                             G_CALLBACK (gtk_tree_view_model_sort_column_changed),
1227                             tree_column);
1228
1229       if (gtk_tree_sortable_get_sort_column_id (GTK_TREE_SORTABLE (model),
1230                                                 &real_sort_column_id,
1231                                                 &real_order) &&
1232           (real_sort_column_id == priv->sort_column_id))
1233         {
1234           gtk_tree_view_column_set_sort_indicator (tree_column, TRUE);
1235           gtk_tree_view_column_set_sort_order (tree_column, real_order);
1236         }
1237       else
1238         {
1239           gtk_tree_view_column_set_sort_indicator (tree_column, FALSE);
1240         }
1241    }
1242 }
1243
1244 static void
1245 gtk_tree_view_column_context_changed  (GtkCellAreaContext      *context,
1246                                        GParamSpec              *pspec,
1247                                        GtkTreeViewColumn       *tree_column)
1248 {
1249   if (!strcmp (pspec->name, "minimum-width") ||
1250       !strcmp (pspec->name, "natural-width") ||
1251       !strcmp (pspec->name, "minimum-height") ||
1252       !strcmp (pspec->name, "natural-height"))
1253     {
1254       /* XXX We want to do something specific if the size actually got cleared
1255        * or if it just grew a little bit because of a data change and we
1256        * are in GROW_ONLY mode.
1257        */
1258       _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
1259     }
1260 }
1261
1262 static void
1263 gtk_tree_view_column_add_editable_callback (GtkCellArea       *area,
1264                                             GtkCellRenderer   *renderer,
1265                                             GtkCellEditable   *edit_widget,
1266                                             GdkRectangle      *cell_area,
1267                                             const gchar       *path_string,
1268                                             gpointer           user_data)
1269 {
1270   GtkTreeViewColumn        *column = user_data;
1271   GtkTreeViewColumnPrivate *priv   = column->priv;
1272   GtkTreePath              *path;
1273
1274   if (priv->tree_view)
1275     {
1276       path = gtk_tree_path_new_from_string (path_string);
1277
1278       _gtk_tree_view_add_editable (GTK_TREE_VIEW (priv->tree_view),
1279                                    column,
1280                                    path,
1281                                    edit_widget,
1282                                    cell_area);
1283
1284       gtk_tree_path_free (path);
1285     }
1286 }
1287
1288 static void
1289 gtk_tree_view_column_remove_editable_callback (GtkCellArea     *area,
1290                                                GtkCellRenderer *renderer,
1291                                                GtkCellEditable *edit_widget,
1292                                                gpointer         user_data)
1293 {
1294   GtkTreeViewColumn        *column = user_data;
1295   GtkTreeViewColumnPrivate *priv   = column->priv;
1296
1297   if (priv->tree_view)
1298     _gtk_tree_view_remove_editable (GTK_TREE_VIEW (priv->tree_view),
1299                                     column,
1300                                     edit_widget);
1301 }
1302
1303 /* Exported Private Functions.
1304  * These should only be called by gtktreeview.c or gtktreeviewcolumn.c
1305  */
1306 void
1307 _gtk_tree_view_column_realize_button (GtkTreeViewColumn *column)
1308 {
1309   GtkTreeViewColumnPrivate *priv = column->priv;
1310   GtkAllocation allocation;
1311   GtkTreeView *tree_view;
1312   GdkWindowAttr attr;
1313   guint attributes_mask;
1314   gboolean rtl;
1315
1316   tree_view = (GtkTreeView *)priv->tree_view;
1317   rtl       = (gtk_widget_get_direction (priv->tree_view) == GTK_TEXT_DIR_RTL);
1318
1319   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
1320   g_return_if_fail (gtk_widget_get_realized (priv->tree_view));
1321   g_return_if_fail (priv->button != NULL);
1322
1323   g_return_if_fail (_gtk_tree_view_get_header_window (tree_view) != NULL);
1324   gtk_widget_set_parent_window (priv->button, _gtk_tree_view_get_header_window (tree_view));
1325
1326   if (priv->visible)
1327     gtk_widget_show (priv->button);
1328
1329   attr.window_type = GDK_WINDOW_CHILD;
1330   attr.wclass = GDK_INPUT_ONLY;
1331   attr.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
1332   attr.event_mask = gtk_widget_get_events (GTK_WIDGET (tree_view)) |
1333                     (GDK_BUTTON_PRESS_MASK |
1334                      GDK_BUTTON_RELEASE_MASK |
1335                      GDK_POINTER_MOTION_MASK |
1336                      GDK_POINTER_MOTION_HINT_MASK |
1337                      GDK_KEY_PRESS_MASK);
1338   attributes_mask = GDK_WA_CURSOR | GDK_WA_X | GDK_WA_Y;
1339   attr.cursor = gdk_cursor_new_for_display
1340     (gdk_window_get_display (_gtk_tree_view_get_header_window (tree_view)), GDK_SB_H_DOUBLE_ARROW);
1341   attr.y = 0;
1342   attr.width = TREE_VIEW_DRAG_WIDTH;
1343   attr.height = _gtk_tree_view_get_header_height (tree_view);
1344
1345   gtk_widget_get_allocation (priv->button, &allocation);
1346   attr.x       = (allocation.x + (rtl ? 0 : allocation.width)) - TREE_VIEW_DRAG_WIDTH / 2;
1347   priv->window = gdk_window_new (_gtk_tree_view_get_header_window (tree_view),
1348                                  &attr, attributes_mask);
1349   gdk_window_set_user_data (priv->window, tree_view);
1350
1351   gtk_tree_view_column_update_button (column);
1352
1353   gdk_cursor_unref (attr.cursor);
1354 }
1355
1356 void
1357 _gtk_tree_view_column_unrealize_button (GtkTreeViewColumn *column)
1358 {
1359   GtkTreeViewColumnPrivate *priv;
1360
1361   g_return_if_fail (column != NULL);
1362
1363   priv = column->priv;
1364   g_return_if_fail (priv->window != NULL);
1365
1366   gdk_window_set_user_data (priv->window, NULL);
1367   gdk_window_destroy (priv->window);
1368   priv->window = NULL;
1369 }
1370
1371 void
1372 _gtk_tree_view_column_unset_model (GtkTreeViewColumn *column,
1373                                    GtkTreeModel      *old_model)
1374 {
1375   GtkTreeViewColumnPrivate *priv = column->priv;
1376
1377   if (priv->sort_column_changed_signal)
1378     {
1379       g_signal_handler_disconnect (old_model,
1380                                    priv->sort_column_changed_signal);
1381       priv->sort_column_changed_signal = 0;
1382     }
1383   gtk_tree_view_column_set_sort_indicator (column, FALSE);
1384 }
1385
1386 void
1387 _gtk_tree_view_column_set_tree_view (GtkTreeViewColumn *column,
1388                                      GtkTreeView       *tree_view)
1389 {
1390   GtkTreeViewColumnPrivate *priv = column->priv;
1391
1392   g_assert (priv->tree_view == NULL);
1393
1394   priv->tree_view = GTK_WIDGET (tree_view);
1395   gtk_tree_view_column_create_button (column);
1396
1397   priv->property_changed_signal =
1398     g_signal_connect_swapped (tree_view,
1399                               "notify::model",
1400                               G_CALLBACK (gtk_tree_view_column_setup_sort_column_id_callback),
1401                               column);
1402
1403   gtk_tree_view_column_setup_sort_column_id_callback (column);
1404 }
1405
1406 void
1407 _gtk_tree_view_column_unset_tree_view (GtkTreeViewColumn *column)
1408 {
1409   GtkTreeViewColumnPrivate *priv = column->priv;
1410
1411   if (priv->tree_view && priv->button)
1412     {
1413       gtk_container_remove (GTK_CONTAINER (priv->tree_view), priv->button);
1414     }
1415   if (priv->property_changed_signal)
1416     {
1417       g_signal_handler_disconnect (priv->tree_view, priv->property_changed_signal);
1418       priv->property_changed_signal = 0;
1419     }
1420
1421   if (priv->sort_column_changed_signal)
1422     {
1423       g_signal_handler_disconnect (gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view)),
1424                                    priv->sort_column_changed_signal);
1425       priv->sort_column_changed_signal = 0;
1426     }
1427
1428   priv->tree_view = NULL;
1429   priv->button = NULL;
1430 }
1431
1432 gboolean
1433 _gtk_tree_view_column_has_editable_cell (GtkTreeViewColumn *column)
1434 {
1435   GtkTreeViewColumnPrivate *priv = column->priv;
1436   gboolean ret = FALSE;
1437   GList *list, *cells;
1438
1439   cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (priv->cell_area));
1440
1441   for (list = cells; list; list = list->next)
1442     {
1443       GtkCellRenderer *cell = list->data;
1444       GtkCellRendererMode mode;
1445
1446       g_object_get (cell, "mode", &mode, NULL);
1447
1448       if (mode == GTK_CELL_RENDERER_MODE_EDITABLE)
1449         {
1450           ret = TRUE;
1451           break;
1452         }
1453     }
1454
1455   g_list_free (cells);
1456
1457   return ret;
1458 }
1459
1460 /* gets cell being edited */
1461 GtkCellRenderer *
1462 _gtk_tree_view_column_get_edited_cell (GtkTreeViewColumn *column)
1463 {
1464   GtkTreeViewColumnPrivate *priv = column->priv;
1465
1466   return gtk_cell_area_get_edited_cell (priv->cell_area);
1467 }
1468
1469 /* Public Functions */
1470
1471
1472 /**
1473  * gtk_tree_view_column_new:
1474  *
1475  * Creates a new #GtkTreeViewColumn.
1476  *
1477  * Return value: A newly created #GtkTreeViewColumn.
1478  **/
1479 GtkTreeViewColumn *
1480 gtk_tree_view_column_new (void)
1481 {
1482   GtkTreeViewColumn *tree_column;
1483
1484   tree_column = g_object_new (GTK_TYPE_TREE_VIEW_COLUMN, NULL);
1485
1486   return tree_column;
1487 }
1488
1489 /**
1490  * gtk_tree_view_column_new_with_attributes:
1491  * @title: The title to set the header to.
1492  * @cell: The #GtkCellRenderer.
1493  * @Varargs: A %NULL-terminated list of attributes.
1494  *
1495  * Creates a new #GtkTreeViewColumn with a number of default values.  This is
1496  * equivalent to calling gtk_tree_view_column_set_title(),
1497  * gtk_tree_view_column_pack_start(), and
1498  * gtk_tree_view_column_set_attributes() on the newly created #GtkTreeViewColumn.
1499  *
1500  * Here's a simple example:
1501  * |[
1502  *  enum { TEXT_COLUMN, COLOR_COLUMN, N_COLUMNS };
1503  *  ...
1504  *  {
1505  *    GtkTreeViewColumn *column;
1506  *    GtkCellRenderer   *renderer = gtk_cell_renderer_text_new ();
1507  *
1508  *    column = gtk_tree_view_column_new_with_attributes ("Title",
1509  *                                                       renderer,
1510  *                                                       "text", TEXT_COLUMN,
1511  *                                                       "foreground", COLOR_COLUMN,
1512  *                                                       NULL);
1513  *  }
1514  * ]|
1515  *
1516  * Return value: A newly created #GtkTreeViewColumn.
1517  **/
1518 GtkTreeViewColumn *
1519 gtk_tree_view_column_new_with_attributes (const gchar     *title,
1520                                           GtkCellRenderer *cell,
1521                                           ...)
1522 {
1523   GtkTreeViewColumn *retval;
1524   va_list args;
1525
1526   retval = gtk_tree_view_column_new ();
1527
1528   gtk_tree_view_column_set_title (retval, title);
1529   gtk_tree_view_column_pack_start (retval, cell, TRUE);
1530
1531   va_start (args, cell);
1532   gtk_tree_view_column_set_attributesv (retval, cell, args);
1533   va_end (args);
1534
1535   return retval;
1536 }
1537
1538 /**
1539  * gtk_tree_view_column_pack_start:
1540  * @tree_column: A #GtkTreeViewColumn.
1541  * @cell: The #GtkCellRenderer.
1542  * @expand: %TRUE if @cell is to be given extra space allocated to @tree_column.
1543  *
1544  * Packs the @cell into the beginning of the column. If @expand is %FALSE, then
1545  * the @cell is allocated no more space than it needs. Any unused space is divided
1546  * evenly between cells for which @expand is %TRUE.
1547  **/
1548 void
1549 gtk_tree_view_column_pack_start (GtkTreeViewColumn *tree_column,
1550                                  GtkCellRenderer   *cell,
1551                                  gboolean           expand)
1552 {
1553   gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (tree_column), cell, expand);
1554 }
1555
1556 /**
1557  * gtk_tree_view_column_pack_end:
1558  * @tree_column: A #GtkTreeViewColumn.
1559  * @cell: The #GtkCellRenderer.
1560  * @expand: %TRUE if @cell is to be given extra space allocated to @tree_column.
1561  *
1562  * Adds the @cell to end of the column. If @expand is %FALSE, then the @cell
1563  * is allocated no more space than it needs. Any unused space is divided
1564  * evenly between cells for which @expand is %TRUE.
1565  **/
1566 void
1567 gtk_tree_view_column_pack_end (GtkTreeViewColumn  *tree_column,
1568                                GtkCellRenderer    *cell,
1569                                gboolean            expand)
1570 {
1571   gtk_cell_layout_pack_end (GTK_CELL_LAYOUT (tree_column), cell, expand);
1572 }
1573
1574 /**
1575  * gtk_tree_view_column_clear:
1576  * @tree_column: A #GtkTreeViewColumn
1577  *
1578  * Unsets all the mappings on all renderers on the @tree_column.
1579  **/
1580 void
1581 gtk_tree_view_column_clear (GtkTreeViewColumn *tree_column)
1582 {
1583   gtk_cell_layout_clear (GTK_CELL_LAYOUT (tree_column));
1584 }
1585
1586 /**
1587  * gtk_tree_view_column_add_attribute:
1588  * @tree_column: A #GtkTreeViewColumn.
1589  * @cell_renderer: the #GtkCellRenderer to set attributes on
1590  * @attribute: An attribute on the renderer
1591  * @column: The column position on the model to get the attribute from.
1592  *
1593  * Adds an attribute mapping to the list in @tree_column.  The @column is the
1594  * column of the model to get a value from, and the @attribute is the
1595  * parameter on @cell_renderer to be set from the value. So for example
1596  * if column 2 of the model contains strings, you could have the
1597  * "text" attribute of a #GtkCellRendererText get its values from
1598  * column 2.
1599  **/
1600 void
1601 gtk_tree_view_column_add_attribute (GtkTreeViewColumn *tree_column,
1602                                     GtkCellRenderer   *cell_renderer,
1603                                     const gchar       *attribute,
1604                                     gint               column)
1605 {
1606   gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (tree_column),
1607                                  cell_renderer, attribute, column);
1608 }
1609
1610 static void
1611 gtk_tree_view_column_set_attributesv (GtkTreeViewColumn *tree_column,
1612                                       GtkCellRenderer   *cell_renderer,
1613                                       va_list            args)
1614 {
1615   GtkTreeViewColumnPrivate *priv = tree_column->priv;
1616   gchar *attribute;
1617   gint column;
1618
1619   attribute = va_arg (args, gchar *);
1620
1621   gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (priv->cell_area),
1622                                     cell_renderer);
1623
1624   while (attribute != NULL)
1625     {
1626       column = va_arg (args, gint);
1627       gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (priv->cell_area),
1628                                      cell_renderer, attribute, column);
1629       attribute = va_arg (args, gchar *);
1630     }
1631 }
1632
1633 /**
1634  * gtk_tree_view_column_set_attributes:
1635  * @tree_column: A #GtkTreeViewColumn.
1636  * @cell_renderer: the #GtkCellRenderer we're setting the attributes of
1637  * @Varargs: A %NULL-terminated list of attributes.
1638  *
1639  * Sets the attributes in the list as the attributes of @tree_column.
1640  * The attributes should be in attribute/column order, as in
1641  * gtk_tree_view_column_add_attribute(). All existing attributes
1642  * are removed, and replaced with the new attributes.
1643  **/
1644 void
1645 gtk_tree_view_column_set_attributes (GtkTreeViewColumn *tree_column,
1646                                      GtkCellRenderer   *cell_renderer,
1647                                      ...)
1648 {
1649   va_list args;
1650
1651   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1652   g_return_if_fail (GTK_IS_CELL_RENDERER (cell_renderer));
1653
1654   va_start (args, cell_renderer);
1655   gtk_tree_view_column_set_attributesv (tree_column, cell_renderer, args);
1656   va_end (args);
1657 }
1658
1659
1660 /**
1661  * gtk_tree_view_column_set_cell_data_func:
1662  * @tree_column: A #GtkTreeViewColumn
1663  * @cell_renderer: A #GtkCellRenderer
1664  * @func: The #GtkTreeViewColumnFunc to use.
1665  * @func_data: The user data for @func.
1666  * @destroy: The destroy notification for @func_data
1667  *
1668  * Sets the #GtkTreeViewColumnFunc to use for the column.  This
1669  * function is used instead of the standard attributes mapping for
1670  * setting the column value, and should set the value of @tree_column's
1671  * cell renderer as appropriate.  @func may be %NULL to remove an
1672  * older one.
1673  **/
1674 void
1675 gtk_tree_view_column_set_cell_data_func (GtkTreeViewColumn   *tree_column,
1676                                          GtkCellRenderer     *cell_renderer,
1677                                          GtkTreeCellDataFunc  func,
1678                                          gpointer             func_data,
1679                                          GDestroyNotify       destroy)
1680 {
1681   gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (tree_column),
1682                                       cell_renderer,
1683                                       (GtkCellLayoutDataFunc)func,
1684                                       func_data, destroy);
1685 }
1686
1687
1688 /**
1689  * gtk_tree_view_column_clear_attributes:
1690  * @tree_column: a #GtkTreeViewColumn
1691  * @cell_renderer: a #GtkCellRenderer to clear the attribute mapping on.
1692  *
1693  * Clears all existing attributes previously set with
1694  * gtk_tree_view_column_set_attributes().
1695  **/
1696 void
1697 gtk_tree_view_column_clear_attributes (GtkTreeViewColumn *tree_column,
1698                                        GtkCellRenderer   *cell_renderer)
1699 {
1700   gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (tree_column),
1701                                     cell_renderer);
1702 }
1703
1704 /**
1705  * gtk_tree_view_column_set_spacing:
1706  * @tree_column: A #GtkTreeViewColumn.
1707  * @spacing: distance between cell renderers in pixels.
1708  *
1709  * Sets the spacing field of @tree_column, which is the number of pixels to
1710  * place between cell renderers packed into it.
1711  **/
1712 void
1713 gtk_tree_view_column_set_spacing (GtkTreeViewColumn *tree_column,
1714                                   gint               spacing)
1715 {
1716   GtkTreeViewColumnPrivate *priv;
1717
1718   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1719   g_return_if_fail (spacing >= 0);
1720
1721   priv = tree_column->priv;
1722
1723   gtk_cell_area_box_set_spacing (GTK_CELL_AREA_BOX (priv->cell_area),
1724                                  spacing);
1725   if (priv->tree_view)
1726     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
1727 }
1728
1729 /**
1730  * gtk_tree_view_column_get_spacing:
1731  * @tree_column: A #GtkTreeViewColumn.
1732  *
1733  * Returns the spacing of @tree_column.
1734  *
1735  * Return value: the spacing of @tree_column.
1736  **/
1737 gint
1738 gtk_tree_view_column_get_spacing (GtkTreeViewColumn *tree_column)
1739 {
1740   GtkTreeViewColumnPrivate *priv;
1741
1742   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
1743
1744   priv = tree_column->priv;
1745
1746   return gtk_cell_area_box_get_spacing (GTK_CELL_AREA_BOX (priv->cell_area));
1747 }
1748
1749 /* Options for manipulating the columns */
1750
1751 /**
1752  * gtk_tree_view_column_set_visible:
1753  * @tree_column: A #GtkTreeViewColumn.
1754  * @visible: %TRUE if the @tree_column is visible.
1755  *
1756  * Sets the visibility of @tree_column.
1757  **/
1758 void
1759 gtk_tree_view_column_set_visible (GtkTreeViewColumn *tree_column,
1760                                   gboolean           visible)
1761 {
1762   GtkTreeViewColumnPrivate *priv;
1763
1764   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1765
1766   priv    = tree_column->priv;
1767   visible = !! visible;
1768
1769   if (priv->visible == visible)
1770     return;
1771
1772   priv->visible = visible;
1773
1774   if (priv->visible)
1775     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
1776
1777   gtk_tree_view_column_update_button (tree_column);
1778   g_object_notify (G_OBJECT (tree_column), "visible");
1779 }
1780
1781 /**
1782  * gtk_tree_view_column_get_visible:
1783  * @tree_column: A #GtkTreeViewColumn.
1784  *
1785  * Returns %TRUE if @tree_column is visible.
1786  *
1787  * Return value: whether the column is visible or not.  If it is visible, then
1788  * the tree will show the column.
1789  **/
1790 gboolean
1791 gtk_tree_view_column_get_visible (GtkTreeViewColumn *tree_column)
1792 {
1793   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
1794
1795   return tree_column->priv->visible;
1796 }
1797
1798 /**
1799  * gtk_tree_view_column_set_resizable:
1800  * @tree_column: A #GtkTreeViewColumn
1801  * @resizable: %TRUE, if the column can be resized
1802  *
1803  * If @resizable is %TRUE, then the user can explicitly resize the column by
1804  * grabbing the outer edge of the column button.  If resizable is %TRUE and
1805  * sizing mode of the column is #GTK_TREE_VIEW_COLUMN_AUTOSIZE, then the sizing
1806  * mode is changed to #GTK_TREE_VIEW_COLUMN_GROW_ONLY.
1807  **/
1808 void
1809 gtk_tree_view_column_set_resizable (GtkTreeViewColumn *tree_column,
1810                                     gboolean           resizable)
1811 {
1812   GtkTreeViewColumnPrivate *priv;
1813
1814   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1815
1816   priv      = tree_column->priv;
1817   resizable = !! resizable;
1818
1819   if (priv->resizable == resizable)
1820     return;
1821
1822   priv->resizable = resizable;
1823
1824   if (resizable && priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
1825     gtk_tree_view_column_set_sizing (tree_column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
1826
1827   gtk_tree_view_column_update_button (tree_column);
1828
1829   g_object_notify (G_OBJECT (tree_column), "resizable");
1830 }
1831
1832 /**
1833  * gtk_tree_view_column_get_resizable:
1834  * @tree_column: A #GtkTreeViewColumn
1835  *
1836  * Returns %TRUE if the @tree_column can be resized by the end user.
1837  *
1838  * Return value: %TRUE, if the @tree_column can be resized.
1839  **/
1840 gboolean
1841 gtk_tree_view_column_get_resizable (GtkTreeViewColumn *tree_column)
1842 {
1843   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
1844
1845   return tree_column->priv->resizable;
1846 }
1847
1848
1849 /**
1850  * gtk_tree_view_column_set_sizing:
1851  * @tree_column: A #GtkTreeViewColumn.
1852  * @type: The #GtkTreeViewColumnSizing.
1853  *
1854  * Sets the growth behavior of @tree_column to @type.
1855  **/
1856 void
1857 gtk_tree_view_column_set_sizing (GtkTreeViewColumn       *tree_column,
1858                                  GtkTreeViewColumnSizing  type)
1859 {
1860   GtkTreeViewColumnPrivate *priv;
1861
1862   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1863
1864   priv      = tree_column->priv;
1865
1866   if (type == priv->column_type)
1867     return;
1868
1869   if (type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
1870     gtk_tree_view_column_set_resizable (tree_column, FALSE);
1871
1872 #if 0
1873   /* I was clearly on crack when I wrote this.  I'm not sure what's supposed to
1874    * be below so I'll leave it until I figure it out.
1875    */
1876   if (priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE &&
1877       priv->requested_width != -1)
1878     {
1879       gtk_tree_view_column_set_sizing (tree_column, priv->requested_width);
1880     }
1881 #endif
1882   priv->column_type = type;
1883
1884   gtk_tree_view_column_update_button (tree_column);
1885
1886   g_object_notify (G_OBJECT (tree_column), "sizing");
1887 }
1888
1889 /**
1890  * gtk_tree_view_column_get_sizing:
1891  * @tree_column: A #GtkTreeViewColumn.
1892  *
1893  * Returns the current type of @tree_column.
1894  *
1895  * Return value: The type of @tree_column.
1896  **/
1897 GtkTreeViewColumnSizing
1898 gtk_tree_view_column_get_sizing (GtkTreeViewColumn *tree_column)
1899 {
1900   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
1901
1902   return tree_column->priv->column_type;
1903 }
1904
1905 /**
1906  * gtk_tree_view_column_get_width:
1907  * @tree_column: A #GtkTreeViewColumn.
1908  *
1909  * Returns the current size of @tree_column in pixels.
1910  *
1911  * Return value: The current width of @tree_column.
1912  **/
1913 gint
1914 gtk_tree_view_column_get_width (GtkTreeViewColumn *tree_column)
1915 {
1916   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
1917
1918   return tree_column->priv->width;
1919 }
1920
1921 gint
1922 _gtk_tree_view_column_request_width (GtkTreeViewColumn *tree_column)
1923 {
1924   GtkTreeViewColumnPrivate *priv;
1925   gint real_requested_width;
1926
1927   priv = tree_column->priv;
1928
1929   if (priv->use_resized_width)
1930     {
1931       real_requested_width = priv->resized_width;
1932     }
1933   else if (priv->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
1934     {
1935       real_requested_width = priv->fixed_width;
1936     }
1937   else if (gtk_tree_view_get_headers_visible (GTK_TREE_VIEW (priv->tree_view)))
1938     {
1939       gint button_request;
1940
1941       gtk_widget_get_preferred_width (priv->button, &button_request, NULL);
1942       real_requested_width = MAX (priv->requested_width, button_request);
1943     }
1944   else
1945     {
1946       real_requested_width = priv->requested_width;
1947       if (real_requested_width < 0)
1948         real_requested_width = 0;
1949     }
1950
1951   if (priv->min_width != -1)
1952     real_requested_width = MAX (real_requested_width, priv->min_width);
1953
1954   if (priv->max_width != -1)
1955     real_requested_width = MIN (real_requested_width, priv->max_width);
1956
1957   return real_requested_width;
1958 }
1959
1960 void
1961 _gtk_tree_view_column_allocate (GtkTreeViewColumn *tree_column,
1962                                 int                x_offset,
1963                                 int                width,
1964                                 int                cell_width)
1965 {
1966   GtkTreeViewColumnPrivate *priv;
1967   GtkAllocation             allocation;
1968   gboolean                  rtl;
1969
1970   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1971
1972   priv = tree_column->priv;
1973
1974   priv->width = width;
1975
1976   gtk_cell_area_context_allocate (priv->cell_area_context, cell_width, -1);
1977
1978   allocation.x      = x_offset;
1979   allocation.y      = 0;
1980   allocation.width  = width;
1981   allocation.height = _gtk_tree_view_get_header_height (GTK_TREE_VIEW (priv->tree_view));
1982
1983   gtk_widget_size_allocate (priv->button, &allocation);
1984
1985   if (priv->window)
1986     {
1987       rtl = (gtk_widget_get_direction (priv->tree_view) == GTK_TEXT_DIR_RTL);
1988       gdk_window_move_resize (priv->window,
1989                               allocation.x + (rtl ? 0 : allocation.width) - TREE_VIEW_DRAG_WIDTH/2,
1990                               allocation.y,
1991                               TREE_VIEW_DRAG_WIDTH, allocation.height);
1992     }
1993
1994   g_object_notify (G_OBJECT (tree_column), "width");
1995 }
1996
1997 /**
1998  * gtk_tree_view_column_set_fixed_width:
1999  * @tree_column: A #GtkTreeViewColumn.
2000  * @fixed_width: The size to set @tree_column to. Must be greater than 0.
2001  *
2002  * Sets the size of the column in pixels.  This is meaningful only if the sizing
2003  * type is #GTK_TREE_VIEW_COLUMN_FIXED.  The size of the column is clamped to
2004  * the min/max width for the column.  Please note that the min/max width of the
2005  * column doesn't actually affect the "fixed_width" property of the widget, just
2006  * the actual size when displayed.
2007  **/
2008 void
2009 gtk_tree_view_column_set_fixed_width (GtkTreeViewColumn *tree_column,
2010                                       gint               fixed_width)
2011 {
2012   GtkTreeViewColumnPrivate *priv;
2013
2014   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2015   g_return_if_fail (fixed_width > 0);
2016
2017   priv = tree_column->priv;
2018
2019   priv->fixed_width = fixed_width;
2020   priv->use_resized_width = FALSE;
2021
2022   if (priv->tree_view &&
2023       gtk_widget_get_realized (priv->tree_view) &&
2024       priv->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2025     {
2026       gtk_widget_queue_resize (priv->tree_view);
2027     }
2028
2029   g_object_notify (G_OBJECT (tree_column), "fixed-width");
2030 }
2031
2032 /**
2033  * gtk_tree_view_column_get_fixed_width:
2034  * @tree_column: a #GtkTreeViewColumn
2035  *
2036  * Gets the fixed width of the column.  This value is only meaning may not be
2037  * the actual width of the column on the screen, just what is requested.
2038  *
2039  * Return value: the fixed width of the column
2040  **/
2041 gint
2042 gtk_tree_view_column_get_fixed_width (GtkTreeViewColumn *tree_column)
2043 {
2044   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
2045
2046   return tree_column->priv->fixed_width;
2047 }
2048
2049 /**
2050  * gtk_tree_view_column_set_min_width:
2051  * @tree_column: A #GtkTreeViewColumn.
2052  * @min_width: The minimum width of the column in pixels, or -1.
2053  *
2054  * Sets the minimum width of the @tree_column.  If @min_width is -1, then the
2055  * minimum width is unset.
2056  **/
2057 void
2058 gtk_tree_view_column_set_min_width (GtkTreeViewColumn *tree_column,
2059                                     gint               min_width)
2060 {
2061   GtkTreeViewColumnPrivate *priv;
2062
2063   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2064   g_return_if_fail (min_width >= -1);
2065
2066   priv = tree_column->priv;
2067
2068   if (min_width == priv->min_width)
2069     return;
2070
2071   if (priv->visible &&
2072       priv->tree_view != NULL &&
2073       gtk_widget_get_realized (priv->tree_view))
2074     {
2075       if (min_width > priv->width)
2076         gtk_widget_queue_resize (priv->tree_view);
2077     }
2078
2079   priv->min_width = min_width;
2080   g_object_freeze_notify (G_OBJECT (tree_column));
2081   if (priv->max_width != -1 && priv->max_width < min_width)
2082     {
2083       priv->max_width = min_width;
2084       g_object_notify (G_OBJECT (tree_column), "max-width");
2085     }
2086   g_object_notify (G_OBJECT (tree_column), "min-width");
2087   g_object_thaw_notify (G_OBJECT (tree_column));
2088
2089   if (priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2090     _gtk_tree_view_column_autosize (GTK_TREE_VIEW (priv->tree_view),
2091                                     tree_column);
2092 }
2093
2094 /**
2095  * gtk_tree_view_column_get_min_width:
2096  * @tree_column: A #GtkTreeViewColumn.
2097  *
2098  * Returns the minimum width in pixels of the @tree_column, or -1 if no minimum
2099  * width is set.
2100  *
2101  * Return value: The minimum width of the @tree_column.
2102  **/
2103 gint
2104 gtk_tree_view_column_get_min_width (GtkTreeViewColumn *tree_column)
2105 {
2106   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), -1);
2107
2108   return tree_column->priv->min_width;
2109 }
2110
2111 /**
2112  * gtk_tree_view_column_set_max_width:
2113  * @tree_column: A #GtkTreeViewColumn.
2114  * @max_width: The maximum width of the column in pixels, or -1.
2115  *
2116  * Sets the maximum width of the @tree_column.  If @max_width is -1, then the
2117  * maximum width is unset.  Note, the column can actually be wider than max
2118  * width if it's the last column in a view.  In this case, the column expands to
2119  * fill any extra space.
2120  **/
2121 void
2122 gtk_tree_view_column_set_max_width (GtkTreeViewColumn *tree_column,
2123                                     gint               max_width)
2124 {
2125   GtkTreeViewColumnPrivate *priv;
2126
2127   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2128   g_return_if_fail (max_width >= -1);
2129
2130   priv = tree_column->priv;
2131
2132   if (max_width == priv->max_width)
2133     return;
2134
2135   if (priv->visible &&
2136       priv->tree_view != NULL &&
2137       gtk_widget_get_realized (priv->tree_view))
2138     {
2139       if (max_width != -1 && max_width < priv->width)
2140         gtk_widget_queue_resize (priv->tree_view);
2141     }
2142
2143   priv->max_width = max_width;
2144   g_object_freeze_notify (G_OBJECT (tree_column));
2145   if (max_width != -1 && max_width < priv->min_width)
2146     {
2147       priv->min_width = max_width;
2148       g_object_notify (G_OBJECT (tree_column), "min-width");
2149     }
2150   g_object_notify (G_OBJECT (tree_column), "max-width");
2151   g_object_thaw_notify (G_OBJECT (tree_column));
2152
2153   if (priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2154     _gtk_tree_view_column_autosize (GTK_TREE_VIEW (priv->tree_view),
2155                                     tree_column);
2156 }
2157
2158 /**
2159  * gtk_tree_view_column_get_max_width:
2160  * @tree_column: A #GtkTreeViewColumn.
2161  *
2162  * Returns the maximum width in pixels of the @tree_column, or -1 if no maximum
2163  * width is set.
2164  *
2165  * Return value: The maximum width of the @tree_column.
2166  **/
2167 gint
2168 gtk_tree_view_column_get_max_width (GtkTreeViewColumn *tree_column)
2169 {
2170   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), -1);
2171
2172   return tree_column->priv->max_width;
2173 }
2174
2175 /**
2176  * gtk_tree_view_column_clicked:
2177  * @tree_column: a #GtkTreeViewColumn
2178  *
2179  * Emits the "clicked" signal on the column.  This function will only work if
2180  * @tree_column is clickable.
2181  **/
2182 void
2183 gtk_tree_view_column_clicked (GtkTreeViewColumn *tree_column)
2184 {
2185   GtkTreeViewColumnPrivate *priv;
2186
2187   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2188
2189   priv = tree_column->priv;
2190
2191   if (priv->visible &&
2192       priv->button &&
2193       priv->clickable)
2194     gtk_button_clicked (GTK_BUTTON (priv->button));
2195 }
2196
2197 /**
2198  * gtk_tree_view_column_set_title:
2199  * @tree_column: A #GtkTreeViewColumn.
2200  * @title: The title of the @tree_column.
2201  *
2202  * Sets the title of the @tree_column.  If a custom widget has been set, then
2203  * this value is ignored.
2204  **/
2205 void
2206 gtk_tree_view_column_set_title (GtkTreeViewColumn *tree_column,
2207                                 const gchar       *title)
2208 {
2209   GtkTreeViewColumnPrivate *priv;
2210   gchar                    *new_title;
2211
2212   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2213
2214   priv = tree_column->priv;
2215
2216   new_title = g_strdup (title);
2217   g_free (priv->title);
2218   priv->title = new_title;
2219
2220   gtk_tree_view_column_update_button (tree_column);
2221   g_object_notify (G_OBJECT (tree_column), "title");
2222 }
2223
2224 /**
2225  * gtk_tree_view_column_get_title:
2226  * @tree_column: A #GtkTreeViewColumn.
2227  *
2228  * Returns the title of the widget.
2229  *
2230  * Return value: the title of the column. This string should not be
2231  * modified or freed.
2232  **/
2233 G_CONST_RETURN gchar *
2234 gtk_tree_view_column_get_title (GtkTreeViewColumn *tree_column)
2235 {
2236   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
2237
2238   return tree_column->priv->title;
2239 }
2240
2241 /**
2242  * gtk_tree_view_column_set_expand:
2243  * @tree_column: A #GtkTreeViewColumn
2244  * @expand: %TRUE if the column should take available extra space, %FALSE if not
2245  *
2246  * Sets the column to take available extra space.  This space is shared equally
2247  * amongst all columns that have the expand set to %TRUE.  If no column has this
2248  * option set, then the last column gets all extra space.  By default, every
2249  * column is created with this %FALSE.
2250  *
2251  * Since: 2.4
2252  **/
2253 void
2254 gtk_tree_view_column_set_expand (GtkTreeViewColumn *tree_column,
2255                                  gboolean           expand)
2256 {
2257   GtkTreeViewColumnPrivate *priv;
2258
2259   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2260
2261   priv = tree_column->priv;
2262
2263   expand = expand?TRUE:FALSE;
2264   if (priv->expand == expand)
2265     return;
2266   priv->expand = expand;
2267
2268   if (priv->visible &&
2269       priv->tree_view != NULL &&
2270       gtk_widget_get_realized (priv->tree_view))
2271     {
2272       /* We want to continue using the original width of the
2273        * column that includes additional space added by the user
2274        * resizing the columns and possibly extra (expanded) space, which
2275        * are not included in the resized width.
2276        */
2277       priv->use_resized_width = FALSE;
2278
2279       gtk_widget_queue_resize (priv->tree_view);
2280     }
2281
2282   g_object_notify (G_OBJECT (tree_column), "expand");
2283 }
2284
2285 /**
2286  * gtk_tree_view_column_get_expand:
2287  * @tree_column: a #GtkTreeViewColumn
2288  *
2289  * Return %TRUE if the column expands to take any available space.
2290  *
2291  * Return value: %TRUE, if the column expands
2292  *
2293  * Since: 2.4
2294  **/
2295 gboolean
2296 gtk_tree_view_column_get_expand (GtkTreeViewColumn *tree_column)
2297 {
2298   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2299
2300   return tree_column->priv->expand;
2301 }
2302
2303 /**
2304  * gtk_tree_view_column_set_clickable:
2305  * @tree_column: A #GtkTreeViewColumn.
2306  * @clickable: %TRUE if the header is active.
2307  *
2308  * Sets the header to be active if @active is %TRUE.  When the header is active,
2309  * then it can take keyboard focus, and can be clicked.
2310  **/
2311 void
2312 gtk_tree_view_column_set_clickable (GtkTreeViewColumn *tree_column,
2313                                     gboolean           clickable)
2314 {
2315   GtkTreeViewColumnPrivate *priv;
2316
2317   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2318
2319   priv = tree_column->priv;
2320
2321   clickable = !! clickable;
2322   if (priv->clickable == clickable)
2323     return;
2324
2325   priv->clickable = clickable;
2326   gtk_tree_view_column_update_button (tree_column);
2327   g_object_notify (G_OBJECT (tree_column), "clickable");
2328 }
2329
2330 /**
2331  * gtk_tree_view_column_get_clickable:
2332  * @tree_column: a #GtkTreeViewColumn
2333  *
2334  * Returns %TRUE if the user can click on the header for the column.
2335  *
2336  * Return value: %TRUE if user can click the column header.
2337  **/
2338 gboolean
2339 gtk_tree_view_column_get_clickable (GtkTreeViewColumn *tree_column)
2340 {
2341   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2342
2343   return tree_column->priv->clickable;
2344 }
2345
2346 /**
2347  * gtk_tree_view_column_set_widget:
2348  * @tree_column: A #GtkTreeViewColumn.
2349  * @widget: (allow-none): A child #GtkWidget, or %NULL.
2350  *
2351  * Sets the widget in the header to be @widget.  If widget is %NULL, then the
2352  * header button is set with a #GtkLabel set to the title of @tree_column.
2353  **/
2354 void
2355 gtk_tree_view_column_set_widget (GtkTreeViewColumn *tree_column,
2356                                  GtkWidget         *widget)
2357 {
2358   GtkTreeViewColumnPrivate *priv;
2359
2360   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2361   g_return_if_fail (widget == NULL || GTK_IS_WIDGET (widget));
2362
2363   priv = tree_column->priv;
2364
2365   if (widget)
2366     g_object_ref_sink (widget);
2367
2368   if (priv->child)
2369     g_object_unref (priv->child);
2370
2371   priv->child = widget;
2372   gtk_tree_view_column_update_button (tree_column);
2373   g_object_notify (G_OBJECT (tree_column), "widget");
2374 }
2375
2376 /**
2377  * gtk_tree_view_column_get_widget:
2378  * @tree_column: A #GtkTreeViewColumn.
2379  *
2380  * Returns the #GtkWidget in the button on the column header.
2381  * If a custom widget has not been set then %NULL is returned.
2382  *
2383  * Return value: (transfer none): The #GtkWidget in the column
2384  *     header, or %NULL
2385  **/
2386 GtkWidget *
2387 gtk_tree_view_column_get_widget (GtkTreeViewColumn *tree_column)
2388 {
2389   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
2390
2391   return tree_column->priv->child;
2392 }
2393
2394 /**
2395  * gtk_tree_view_column_set_alignment:
2396  * @tree_column: A #GtkTreeViewColumn.
2397  * @xalign: The alignment, which is between [0.0 and 1.0] inclusive.
2398  *
2399  * Sets the alignment of the title or custom widget inside the column header.
2400  * The alignment determines its location inside the button -- 0.0 for left, 0.5
2401  * for center, 1.0 for right.
2402  **/
2403 void
2404 gtk_tree_view_column_set_alignment (GtkTreeViewColumn *tree_column,
2405                                     gfloat             xalign)
2406 {
2407   GtkTreeViewColumnPrivate *priv;
2408
2409   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2410
2411   priv = tree_column->priv;
2412
2413   xalign = CLAMP (xalign, 0.0, 1.0);
2414
2415   if (priv->xalign == xalign)
2416     return;
2417
2418   priv->xalign = xalign;
2419   gtk_tree_view_column_update_button (tree_column);
2420   g_object_notify (G_OBJECT (tree_column), "alignment");
2421 }
2422
2423 /**
2424  * gtk_tree_view_column_get_alignment:
2425  * @tree_column: A #GtkTreeViewColumn.
2426  *
2427  * Returns the current x alignment of @tree_column.  This value can range
2428  * between 0.0 and 1.0.
2429  *
2430  * Return value: The current alignent of @tree_column.
2431  **/
2432 gfloat
2433 gtk_tree_view_column_get_alignment (GtkTreeViewColumn *tree_column)
2434 {
2435   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0.5);
2436
2437   return tree_column->priv->xalign;
2438 }
2439
2440 /**
2441  * gtk_tree_view_column_set_reorderable:
2442  * @tree_column: A #GtkTreeViewColumn
2443  * @reorderable: %TRUE, if the column can be reordered.
2444  *
2445  * If @reorderable is %TRUE, then the column can be reordered by the end user
2446  * dragging the header.
2447  **/
2448 void
2449 gtk_tree_view_column_set_reorderable (GtkTreeViewColumn *tree_column,
2450                                       gboolean           reorderable)
2451 {
2452   GtkTreeViewColumnPrivate *priv;
2453
2454   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2455
2456   priv = tree_column->priv;
2457
2458   /*  if (reorderable)
2459       gtk_tree_view_column_set_clickable (tree_column, TRUE);*/
2460
2461   if (priv->reorderable == (reorderable?TRUE:FALSE))
2462     return;
2463
2464   priv->reorderable = (reorderable?TRUE:FALSE);
2465   gtk_tree_view_column_update_button (tree_column);
2466   g_object_notify (G_OBJECT (tree_column), "reorderable");
2467 }
2468
2469 /**
2470  * gtk_tree_view_column_get_reorderable:
2471  * @tree_column: A #GtkTreeViewColumn
2472  *
2473  * Returns %TRUE if the @tree_column can be reordered by the user.
2474  *
2475  * Return value: %TRUE if the @tree_column can be reordered by the user.
2476  **/
2477 gboolean
2478 gtk_tree_view_column_get_reorderable (GtkTreeViewColumn *tree_column)
2479 {
2480   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2481
2482   return tree_column->priv->reorderable;
2483 }
2484
2485
2486 /**
2487  * gtk_tree_view_column_set_sort_column_id:
2488  * @tree_column: a #GtkTreeViewColumn
2489  * @sort_column_id: The @sort_column_id of the model to sort on.
2490  *
2491  * Sets the logical @sort_column_id that this column sorts on when this column
2492  * is selected for sorting.  Doing so makes the column header clickable.
2493  **/
2494 void
2495 gtk_tree_view_column_set_sort_column_id (GtkTreeViewColumn *tree_column,
2496                                          gint               sort_column_id)
2497 {
2498   GtkTreeViewColumnPrivate *priv;
2499
2500   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2501   g_return_if_fail (sort_column_id >= -1);
2502
2503   priv = tree_column->priv;
2504
2505   if (priv->sort_column_id == sort_column_id)
2506     return;
2507
2508   priv->sort_column_id = sort_column_id;
2509
2510   /* Handle unsetting the id */
2511   if (sort_column_id == -1)
2512     {
2513       GtkTreeModel *model = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
2514
2515       if (priv->sort_clicked_signal)
2516         {
2517           g_signal_handler_disconnect (tree_column, priv->sort_clicked_signal);
2518           priv->sort_clicked_signal = 0;
2519         }
2520
2521       if (priv->sort_column_changed_signal)
2522         {
2523           g_signal_handler_disconnect (model, priv->sort_column_changed_signal);
2524           priv->sort_column_changed_signal = 0;
2525         }
2526
2527       gtk_tree_view_column_set_sort_order (tree_column, GTK_SORT_ASCENDING);
2528       gtk_tree_view_column_set_sort_indicator (tree_column, FALSE);
2529       gtk_tree_view_column_set_clickable (tree_column, FALSE);
2530       g_object_notify (G_OBJECT (tree_column), "sort-column-id");
2531       return;
2532     }
2533
2534   gtk_tree_view_column_set_clickable (tree_column, TRUE);
2535
2536   if (! priv->sort_clicked_signal)
2537     priv->sort_clicked_signal = g_signal_connect (tree_column,
2538                                                   "clicked",
2539                                                   G_CALLBACK (gtk_tree_view_column_sort),
2540                                                   NULL);
2541
2542   gtk_tree_view_column_setup_sort_column_id_callback (tree_column);
2543   g_object_notify (G_OBJECT (tree_column), "sort-column-id");
2544 }
2545
2546 /**
2547  * gtk_tree_view_column_get_sort_column_id:
2548  * @tree_column: a #GtkTreeViewColumn
2549  *
2550  * Gets the logical @sort_column_id that the model sorts on when this
2551  * column is selected for sorting.
2552  * See gtk_tree_view_column_set_sort_column_id().
2553  *
2554  * Return value: the current @sort_column_id for this column, or -1 if
2555  *               this column can't be used for sorting.
2556  **/
2557 gint
2558 gtk_tree_view_column_get_sort_column_id (GtkTreeViewColumn *tree_column)
2559 {
2560   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
2561
2562   return tree_column->priv->sort_column_id;
2563 }
2564
2565 /**
2566  * gtk_tree_view_column_set_sort_indicator:
2567  * @tree_column: a #GtkTreeViewColumn
2568  * @setting: %TRUE to display an indicator that the column is sorted
2569  *
2570  * Call this function with a @setting of %TRUE to display an arrow in
2571  * the header button indicating the column is sorted. Call
2572  * gtk_tree_view_column_set_sort_order() to change the direction of
2573  * the arrow.
2574  *
2575  **/
2576 void
2577 gtk_tree_view_column_set_sort_indicator (GtkTreeViewColumn     *tree_column,
2578                                          gboolean               setting)
2579 {
2580   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2581
2582   setting = setting != FALSE;
2583
2584   if (setting == tree_column->priv->show_sort_indicator)
2585     return;
2586
2587   tree_column->priv->show_sort_indicator = setting;
2588   gtk_tree_view_column_update_button (tree_column);
2589   g_object_notify (G_OBJECT (tree_column), "sort-indicator");
2590 }
2591
2592 /**
2593  * gtk_tree_view_column_get_sort_indicator:
2594  * @tree_column: a #GtkTreeViewColumn
2595  *
2596  * Gets the value set by gtk_tree_view_column_set_sort_indicator().
2597  *
2598  * Return value: whether the sort indicator arrow is displayed
2599  **/
2600 gboolean
2601 gtk_tree_view_column_get_sort_indicator  (GtkTreeViewColumn     *tree_column)
2602 {
2603   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2604
2605   return tree_column->priv->show_sort_indicator;
2606 }
2607
2608 /**
2609  * gtk_tree_view_column_set_sort_order:
2610  * @tree_column: a #GtkTreeViewColumn
2611  * @order: sort order that the sort indicator should indicate
2612  *
2613  * Changes the appearance of the sort indicator.
2614  *
2615  * This <emphasis>does not</emphasis> actually sort the model.  Use
2616  * gtk_tree_view_column_set_sort_column_id() if you want automatic sorting
2617  * support.  This function is primarily for custom sorting behavior, and should
2618  * be used in conjunction with gtk_tree_sortable_set_sort_column() to do
2619  * that. For custom models, the mechanism will vary.
2620  *
2621  * The sort indicator changes direction to indicate normal sort or reverse sort.
2622  * Note that you must have the sort indicator enabled to see anything when
2623  * calling this function; see gtk_tree_view_column_set_sort_indicator().
2624  **/
2625 void
2626 gtk_tree_view_column_set_sort_order      (GtkTreeViewColumn     *tree_column,
2627                                           GtkSortType            order)
2628 {
2629   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2630
2631   if (order == tree_column->priv->sort_order)
2632     return;
2633
2634   tree_column->priv->sort_order = order;
2635   gtk_tree_view_column_update_button (tree_column);
2636   g_object_notify (G_OBJECT (tree_column), "sort-order");
2637 }
2638
2639 /**
2640  * gtk_tree_view_column_get_sort_order:
2641  * @tree_column: a #GtkTreeViewColumn
2642  *
2643  * Gets the value set by gtk_tree_view_column_set_sort_order().
2644  *
2645  * Return value: the sort order the sort indicator is indicating
2646  **/
2647 GtkSortType
2648 gtk_tree_view_column_get_sort_order      (GtkTreeViewColumn     *tree_column)
2649 {
2650   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
2651
2652   return tree_column->priv->sort_order;
2653 }
2654
2655 /**
2656  * gtk_tree_view_column_cell_set_cell_data:
2657  * @tree_column: A #GtkTreeViewColumn.
2658  * @tree_model: The #GtkTreeModel to to get the cell renderers attributes from.
2659  * @iter: The #GtkTreeIter to to get the cell renderer's attributes from.
2660  * @is_expander: %TRUE, if the row has children
2661  * @is_expanded: %TRUE, if the row has visible children
2662  *
2663  * Sets the cell renderer based on the @tree_model and @iter.  That is, for
2664  * every attribute mapping in @tree_column, it will get a value from the set
2665  * column on the @iter, and use that value to set the attribute on the cell
2666  * renderer.  This is used primarily by the #GtkTreeView.
2667  **/
2668 void
2669 gtk_tree_view_column_cell_set_cell_data (GtkTreeViewColumn *tree_column,
2670                                          GtkTreeModel      *tree_model,
2671                                          GtkTreeIter       *iter,
2672                                          gboolean           is_expander,
2673                                          gboolean           is_expanded)
2674 {
2675   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2676
2677   if (tree_model == NULL)
2678     return;
2679
2680   gtk_cell_area_apply_attributes (tree_column->priv->cell_area, tree_model, iter,
2681                                   is_expander, is_expanded);
2682 }
2683
2684 /**
2685  * gtk_tree_view_column_cell_get_size:
2686  * @tree_column: A #GtkTreeViewColumn.
2687  * @cell_area: (allow-none): The area a cell in the column will be allocated, or %NULL
2688  * @x_offset: (allow-none): location to return x offset of a cell relative to @cell_area, or %NULL
2689  * @y_offset: (allow-none): location to return y offset of a cell relative to @cell_area, or %NULL
2690  * @width: (allow-none): location to return width needed to render a cell, or %NULL
2691  * @height: (allow-none): location to return height needed to render a cell, or %NULL
2692  *
2693  * Obtains the width and height needed to render the column.  This is used
2694  * primarily by the #GtkTreeView.
2695  **/
2696 void
2697 gtk_tree_view_column_cell_get_size (GtkTreeViewColumn  *tree_column,
2698                                     const GdkRectangle *cell_area,
2699                                     gint               *x_offset,
2700                                     gint               *y_offset,
2701                                     gint               *width,
2702                                     gint               *height)
2703 {
2704   GtkTreeViewColumnPrivate *priv;
2705   gint min_width = 0, min_height = 0;
2706
2707   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2708
2709   priv = tree_column->priv;
2710
2711   g_signal_handler_block (priv->cell_area_context,
2712                           priv->context_changed_signal);
2713
2714   gtk_cell_area_get_preferred_width (priv->cell_area,
2715                                      priv->cell_area_context,
2716                                      priv->tree_view,
2717                                      NULL, NULL);
2718
2719   gtk_cell_area_context_get_preferred_width (priv->cell_area_context, &min_width, NULL);
2720
2721   gtk_cell_area_get_preferred_height_for_width (priv->cell_area,
2722                                                 priv->cell_area_context,
2723                                                 priv->tree_view,
2724                                                 min_width,
2725                                                 &min_height,
2726                                                 NULL);
2727
2728   g_signal_handler_unblock (priv->cell_area_context,
2729                             priv->context_changed_signal);
2730
2731
2732   if (height)
2733     * height = min_height;
2734   if (width)
2735     * width = min_width;
2736
2737 }
2738
2739 /**
2740  * gtk_tree_view_column_cell_render:
2741  * @tree_column: A #GtkTreeViewColumn.
2742  * @cr: cairo context to draw to
2743  * @background_area: entire cell area (including tree expanders and maybe padding on the sides)
2744  * @cell_area: area normally rendered by a cell renderer
2745  * @flags: flags that affect rendering
2746  *
2747  * Renders the cell contained by #tree_column. This is used primarily by the
2748  * #GtkTreeView.
2749  **/
2750 void
2751 _gtk_tree_view_column_cell_render (GtkTreeViewColumn  *tree_column,
2752                                    cairo_t            *cr,
2753                                    const GdkRectangle *background_area,
2754                                    const GdkRectangle *cell_area,
2755                                    guint               flags,
2756                                    gboolean            draw_focus)
2757 {
2758   GtkTreeViewColumnPrivate *priv;
2759
2760   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2761   g_return_if_fail (cr != NULL);
2762   g_return_if_fail (background_area != NULL);
2763   g_return_if_fail (cell_area != NULL);
2764
2765   priv = tree_column->priv;
2766
2767   cairo_save (cr);
2768
2769   gtk_cell_area_render (priv->cell_area, priv->cell_area_context,
2770                         priv->tree_view, cr,
2771                         background_area, cell_area, flags,
2772                         draw_focus);
2773
2774   cairo_restore (cr);
2775 }
2776
2777 gboolean
2778 _gtk_tree_view_column_cell_event (GtkTreeViewColumn  *tree_column,
2779                                   GtkCellEditable   **editable_widget,
2780                                   GdkEvent           *event,
2781                                   gchar              *path_string,
2782                                   const GdkRectangle *background_area,
2783                                   const GdkRectangle *cell_area,
2784                                   guint               flags)
2785 {
2786   GtkTreeViewColumnPrivate *priv;
2787
2788   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2789
2790   priv = tree_column->priv;
2791
2792   /* FIXME: Should we pass background area here as well?
2793    * What will happen to the path_string and editable widget
2794    * variables?
2795    *
2796    * Answer, No dont pass background area... editable widgets
2797    * grab the pointer and keyboard so the treeview doesnt
2798    * recieve these events while editable widgets are editing.
2799    *
2800    * Also it's important that gtk_cell_area_apply_attributes be
2801    * called before passing the event to the cell (maybe we need to
2802    * instead use the path_string here to apply the attributes ?,
2803    * if the attributes are applied, the underlying CellArea knows
2804    * the path string, which is expected when handling events).
2805    */
2806   return gtk_cell_area_event (priv->cell_area,
2807                               priv->cell_area_context,
2808                               priv->tree_view,
2809                               event,
2810                               cell_area,
2811                               flags);
2812 }
2813
2814 void
2815 _gtk_tree_view_column_get_focus_area (GtkTreeViewColumn  *tree_column,
2816                                       const GdkRectangle *background_area,
2817                                       const GdkRectangle *cell_area,
2818                                       GdkRectangle       *focus_area)
2819 {
2820   /* FIXME */
2821 #if 0
2822   gtk_tree_view_column_cell_process_action (tree_column,
2823                                             NULL,
2824                                             background_area,
2825                                             cell_area,
2826                                             0,
2827                                             CELL_ACTION_FOCUS,
2828                                             focus_area,
2829                                             NULL, NULL, NULL);
2830 #endif
2831 }
2832
2833
2834 /**
2835  * gtk_tree_view_column_cell_is_visible:
2836  * @tree_column: A #GtkTreeViewColumn
2837  *
2838  * Returns %TRUE if any of the cells packed into the @tree_column are visible.
2839  * For this to be meaningful, you must first initialize the cells with
2840  * gtk_tree_view_column_cell_set_cell_data()
2841  *
2842  * Return value: %TRUE, if any of the cells packed into the @tree_column are currently visible
2843  **/
2844 gboolean
2845 gtk_tree_view_column_cell_is_visible (GtkTreeViewColumn *tree_column)
2846 {
2847   GList *list;
2848   GList *cells;
2849   GtkTreeViewColumnPrivate *priv;
2850
2851   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2852
2853   priv = tree_column->priv;
2854
2855   cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (priv->cell_area));
2856   for (list = cells; list; list = list->next)
2857     {
2858       if (gtk_cell_renderer_get_visible (list->data))
2859         {
2860           g_list_free (cells);
2861           return TRUE;
2862         }
2863     }
2864
2865   g_list_free (cells);
2866
2867   return FALSE;
2868 }
2869
2870 /**
2871  * gtk_tree_view_column_focus_cell:
2872  * @tree_column: A #GtkTreeViewColumn
2873  * @cell: A #GtkCellRenderer
2874  *
2875  * Sets the current keyboard focus to be at @cell, if the column contains
2876  * 2 or more editable and activatable cells.
2877  *
2878  * Since: 2.2
2879  **/
2880 void
2881 gtk_tree_view_column_focus_cell (GtkTreeViewColumn *tree_column,
2882                                  GtkCellRenderer   *cell)
2883 {
2884   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2885   g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
2886
2887   gtk_cell_area_set_focus_cell (tree_column->priv->cell_area, cell);
2888 }
2889
2890 void
2891 _gtk_tree_view_column_cell_set_dirty (GtkTreeViewColumn *tree_column,
2892                                       gboolean           install_handler)
2893 {
2894   GtkTreeViewColumnPrivate *priv = tree_column->priv;
2895
2896   priv->dirty = TRUE;
2897   priv->requested_width = -1;
2898   priv->width = 0;
2899
2900   if (priv->tree_view &&
2901       gtk_widget_get_realized (priv->tree_view))
2902     {
2903       _gtk_tree_view_install_mark_rows_col_dirty (GTK_TREE_VIEW (priv->tree_view), install_handler);
2904       gtk_widget_queue_resize (priv->tree_view);
2905     }
2906 }
2907
2908 gboolean
2909 _gtk_tree_view_column_cell_get_dirty (GtkTreeViewColumn  *tree_column)
2910 {
2911   return tree_column->priv->dirty;
2912 }
2913
2914 /**
2915  * gtk_tree_view_column_cell_get_position:
2916  * @tree_column: a #GtkTreeViewColumn
2917  * @cell_renderer: a #GtkCellRenderer
2918  * @x_offset: return location for the horizontal position of @cell within
2919  *            @tree_column, may be %NULL
2920  * @width: return location for the width of @cell, may be %NULL
2921  *
2922  * Obtains the horizontal position and size of a cell in a column. If the
2923  * cell is not found in the column, @start_pos and @width are not changed and
2924  * %FALSE is returned.
2925  *
2926  * Return value: %TRUE if @cell belongs to @tree_column.
2927  */
2928 gboolean
2929 gtk_tree_view_column_cell_get_position (GtkTreeViewColumn *tree_column,
2930                                         GtkCellRenderer   *cell_renderer,
2931                                         gint              *x_offset,
2932                                         gint              *width)
2933 {
2934   GtkTreeViewColumnPrivate *priv;
2935   GdkRectangle zero_cell_area = { 0, };
2936   GdkRectangle allocation;
2937
2938   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2939   g_return_val_if_fail (GTK_IS_CELL_RENDERER (cell_renderer), FALSE);
2940
2941   priv = tree_column->priv;
2942
2943   /* FIXME: Could use a boolean return value for invalid cells */
2944   gtk_cell_area_get_cell_allocation (priv->cell_area,
2945                                      priv->cell_area_context,
2946                                      priv->tree_view,
2947                                      cell_renderer,
2948                                      &zero_cell_area,
2949                                      &allocation);
2950
2951   if (x_offset)
2952     *x_offset = allocation.x;
2953   if (width)
2954     *width = allocation.width;
2955
2956   return TRUE;
2957 }
2958
2959 /**
2960  * gtk_tree_view_column_queue_resize:
2961  * @tree_column: A #GtkTreeViewColumn
2962  *
2963  * Flags the column, and the cell renderers added to this column, to have
2964  * their sizes renegotiated.
2965  *
2966  * Since: 2.8
2967  **/
2968 void
2969 gtk_tree_view_column_queue_resize (GtkTreeViewColumn *tree_column)
2970 {
2971   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2972
2973   if (tree_column->priv->tree_view)
2974     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
2975 }
2976
2977 /**
2978  * gtk_tree_view_column_get_tree_view:
2979  * @tree_column: A #GtkTreeViewColumn
2980  *
2981  * Returns the #GtkTreeView wherein @tree_column has been inserted.
2982  * If @column is currently not inserted in any tree view, %NULL is
2983  * returned.
2984  *
2985  * Return value: (transfer none): The tree view wherein @column has
2986  *     been inserted if any, %NULL otherwise.
2987  *
2988  * Since: 2.12
2989  */
2990 GtkWidget *
2991 gtk_tree_view_column_get_tree_view (GtkTreeViewColumn *tree_column)
2992 {
2993   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
2994
2995   return tree_column->priv->tree_view;
2996 }
2997
2998 /**
2999  * gtk_tree_view_column_get_button:
3000  * @tree_column: A #GtkTreeViewColumn
3001  *
3002  * Returns the button used in the treeview column header
3003  *
3004  * Return value: (transfer none): The button for the column header.
3005  *
3006  * Since: 3.0
3007  */
3008 GtkWidget *
3009 gtk_tree_view_column_get_button (GtkTreeViewColumn *tree_column)
3010 {
3011   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
3012
3013   return tree_column->priv->button;
3014 }
3015
3016 GdkWindow *
3017 _gtk_tree_view_column_get_window (GtkTreeViewColumn  *column)
3018 {
3019   return column->priv->window;
3020 }
3021
3022 void
3023 _gtk_tree_view_column_set_requested_width (GtkTreeViewColumn  *column,
3024                                            gint                width)
3025 {
3026   column->priv->requested_width = width;
3027 }
3028
3029 gint
3030 _gtk_tree_view_column_get_requested_width (GtkTreeViewColumn  *column)
3031 {
3032   return column->priv->requested_width;
3033 }
3034
3035 void
3036 _gtk_tree_view_column_set_resized_width (GtkTreeViewColumn  *column,
3037                                          gint                width)
3038 {
3039   column->priv->resized_width = width;
3040 }
3041
3042 gint
3043 _gtk_tree_view_column_get_resized_width (GtkTreeViewColumn  *column)
3044 {
3045   return column->priv->resized_width;
3046 }
3047
3048 void
3049 _gtk_tree_view_column_set_use_resized_width (GtkTreeViewColumn  *column,
3050                                              gboolean            use_resized_width)
3051 {
3052   column->priv->use_resized_width = use_resized_width;
3053 }
3054
3055 gboolean
3056 _gtk_tree_view_column_get_use_resized_width (GtkTreeViewColumn  *column)
3057 {
3058   return column->priv->use_resized_width;
3059 }
3060
3061 gint
3062 _gtk_tree_view_column_get_drag_x (GtkTreeViewColumn  *column)
3063 {
3064   return column->priv->drag_x;
3065 }
3066
3067 GtkCellAreaContext *
3068 _gtk_tree_view_column_get_context (GtkTreeViewColumn  *column)
3069 {
3070   return column->priv->cell_area_context;
3071 }