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 padding;
 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->padding = -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   /* Here we want the column re-requested if the underlying context was
1250    * actually reset for any reason, this can happen if the underlying
1251    * area/cell configuration changes (i.e. cell packing properties
1252    * or cell spacing and the like)
1253    *
1254    * Note that we block this handler while requesting for sizes
1255    * so there is no need to check for the new context size being -1,
1256    * we also block the handler when explicitly resetting the context
1257    * so as to avoid some infinite stack recursion.
1258    */
1259   if (!strcmp (pspec->name, "minimum-width") ||
1260       !strcmp (pspec->name, "natural-width") ||
1261       !strcmp (pspec->name, "minimum-height") ||
1262       !strcmp (pspec->name, "natural-height"))
1263     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
1264 }
1265
1266 static void
1267 gtk_tree_view_column_add_editable_callback (GtkCellArea       *area,
1268                                             GtkCellRenderer   *renderer,
1269                                             GtkCellEditable   *edit_widget,
1270                                             GdkRectangle      *cell_area,
1271                                             const gchar       *path_string,
1272                                             gpointer           user_data)
1273 {
1274   GtkTreeViewColumn        *column = user_data;
1275   GtkTreeViewColumnPrivate *priv   = column->priv;
1276   GtkTreePath              *path;
1277
1278   if (priv->tree_view)
1279     {
1280       path = gtk_tree_path_new_from_string (path_string);
1281
1282       _gtk_tree_view_add_editable (GTK_TREE_VIEW (priv->tree_view),
1283                                    column,
1284                                    path,
1285                                    edit_widget,
1286                                    cell_area);
1287
1288       gtk_tree_path_free (path);
1289     }
1290 }
1291
1292 static void
1293 gtk_tree_view_column_remove_editable_callback (GtkCellArea     *area,
1294                                                GtkCellRenderer *renderer,
1295                                                GtkCellEditable *edit_widget,
1296                                                gpointer         user_data)
1297 {
1298   GtkTreeViewColumn        *column = user_data;
1299   GtkTreeViewColumnPrivate *priv   = column->priv;
1300
1301   if (priv->tree_view)
1302     _gtk_tree_view_remove_editable (GTK_TREE_VIEW (priv->tree_view),
1303                                     column,
1304                                     edit_widget);
1305 }
1306
1307 /* Exported Private Functions.
1308  * These should only be called by gtktreeview.c or gtktreeviewcolumn.c
1309  */
1310 void
1311 _gtk_tree_view_column_realize_button (GtkTreeViewColumn *column)
1312 {
1313   GtkTreeViewColumnPrivate *priv = column->priv;
1314   GtkAllocation allocation;
1315   GtkTreeView *tree_view;
1316   GdkWindowAttr attr;
1317   guint attributes_mask;
1318   gboolean rtl;
1319
1320   tree_view = (GtkTreeView *)priv->tree_view;
1321   rtl       = (gtk_widget_get_direction (priv->tree_view) == GTK_TEXT_DIR_RTL);
1322
1323   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
1324   g_return_if_fail (gtk_widget_get_realized (priv->tree_view));
1325   g_return_if_fail (priv->button != NULL);
1326
1327   g_return_if_fail (_gtk_tree_view_get_header_window (tree_view) != NULL);
1328   gtk_widget_set_parent_window (priv->button, _gtk_tree_view_get_header_window (tree_view));
1329
1330   if (priv->visible)
1331     gtk_widget_show (priv->button);
1332
1333   attr.window_type = GDK_WINDOW_CHILD;
1334   attr.wclass = GDK_INPUT_ONLY;
1335   attr.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
1336   attr.event_mask = gtk_widget_get_events (GTK_WIDGET (tree_view)) |
1337                     (GDK_BUTTON_PRESS_MASK |
1338                      GDK_BUTTON_RELEASE_MASK |
1339                      GDK_POINTER_MOTION_MASK |
1340                      GDK_POINTER_MOTION_HINT_MASK |
1341                      GDK_KEY_PRESS_MASK);
1342   attributes_mask = GDK_WA_CURSOR | GDK_WA_X | GDK_WA_Y;
1343   attr.cursor = gdk_cursor_new_for_display
1344     (gdk_window_get_display (_gtk_tree_view_get_header_window (tree_view)), GDK_SB_H_DOUBLE_ARROW);
1345   attr.y = 0;
1346   attr.width = TREE_VIEW_DRAG_WIDTH;
1347   attr.height = _gtk_tree_view_get_header_height (tree_view);
1348
1349   gtk_widget_get_allocation (priv->button, &allocation);
1350   attr.x       = (allocation.x + (rtl ? 0 : allocation.width)) - TREE_VIEW_DRAG_WIDTH / 2;
1351   priv->window = gdk_window_new (_gtk_tree_view_get_header_window (tree_view),
1352                                  &attr, attributes_mask);
1353   gdk_window_set_user_data (priv->window, tree_view);
1354
1355   gtk_tree_view_column_update_button (column);
1356
1357   gdk_cursor_unref (attr.cursor);
1358 }
1359
1360 void
1361 _gtk_tree_view_column_unrealize_button (GtkTreeViewColumn *column)
1362 {
1363   GtkTreeViewColumnPrivate *priv;
1364
1365   g_return_if_fail (column != NULL);
1366
1367   priv = column->priv;
1368   g_return_if_fail (priv->window != NULL);
1369
1370   gdk_window_set_user_data (priv->window, NULL);
1371   gdk_window_destroy (priv->window);
1372   priv->window = NULL;
1373 }
1374
1375 void
1376 _gtk_tree_view_column_unset_model (GtkTreeViewColumn *column,
1377                                    GtkTreeModel      *old_model)
1378 {
1379   GtkTreeViewColumnPrivate *priv = column->priv;
1380
1381   if (priv->sort_column_changed_signal)
1382     {
1383       g_signal_handler_disconnect (old_model,
1384                                    priv->sort_column_changed_signal);
1385       priv->sort_column_changed_signal = 0;
1386     }
1387   gtk_tree_view_column_set_sort_indicator (column, FALSE);
1388 }
1389
1390 void
1391 _gtk_tree_view_column_set_tree_view (GtkTreeViewColumn *column,
1392                                      GtkTreeView       *tree_view)
1393 {
1394   GtkTreeViewColumnPrivate *priv = column->priv;
1395
1396   g_assert (priv->tree_view == NULL);
1397
1398   priv->tree_view = GTK_WIDGET (tree_view);
1399   gtk_tree_view_column_create_button (column);
1400
1401   priv->property_changed_signal =
1402     g_signal_connect_swapped (tree_view,
1403                               "notify::model",
1404                               G_CALLBACK (gtk_tree_view_column_setup_sort_column_id_callback),
1405                               column);
1406
1407   gtk_tree_view_column_setup_sort_column_id_callback (column);
1408 }
1409
1410 void
1411 _gtk_tree_view_column_unset_tree_view (GtkTreeViewColumn *column)
1412 {
1413   GtkTreeViewColumnPrivate *priv = column->priv;
1414
1415   if (priv->tree_view && priv->button)
1416     {
1417       gtk_container_remove (GTK_CONTAINER (priv->tree_view), priv->button);
1418     }
1419   if (priv->property_changed_signal)
1420     {
1421       g_signal_handler_disconnect (priv->tree_view, priv->property_changed_signal);
1422       priv->property_changed_signal = 0;
1423     }
1424
1425   if (priv->sort_column_changed_signal)
1426     {
1427       g_signal_handler_disconnect (gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view)),
1428                                    priv->sort_column_changed_signal);
1429       priv->sort_column_changed_signal = 0;
1430     }
1431
1432   priv->tree_view = NULL;
1433   priv->button = NULL;
1434 }
1435
1436 gboolean
1437 _gtk_tree_view_column_has_editable_cell (GtkTreeViewColumn *column)
1438 {
1439   GtkTreeViewColumnPrivate *priv = column->priv;
1440   gboolean ret = FALSE;
1441   GList *list, *cells;
1442
1443   cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (priv->cell_area));
1444
1445   for (list = cells; list; list = list->next)
1446     {
1447       GtkCellRenderer *cell = list->data;
1448       GtkCellRendererMode mode;
1449
1450       g_object_get (cell, "mode", &mode, NULL);
1451
1452       if (mode == GTK_CELL_RENDERER_MODE_EDITABLE)
1453         {
1454           ret = TRUE;
1455           break;
1456         }
1457     }
1458
1459   g_list_free (cells);
1460
1461   return ret;
1462 }
1463
1464 /* gets cell being edited */
1465 GtkCellRenderer *
1466 _gtk_tree_view_column_get_edited_cell (GtkTreeViewColumn *column)
1467 {
1468   GtkTreeViewColumnPrivate *priv = column->priv;
1469
1470   return gtk_cell_area_get_edited_cell (priv->cell_area);
1471 }
1472
1473 GtkCellRenderer *
1474 _gtk_tree_view_column_get_cell_at_pos (GtkTreeViewColumn *column,
1475                                        gint               x)
1476 {
1477   GList *list;
1478   GList *cell;
1479   GtkCellRenderer *match = NULL;
1480   GtkTreeViewColumnPrivate *priv = column->priv;
1481
1482   list = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (column));
1483   for (cell = list; cell; cell = cell->next)
1484     {
1485       GdkRectangle zero_cell_area = { 0, };
1486       GdkRectangle allocation;
1487
1488       gtk_cell_area_get_cell_allocation (priv->cell_area,
1489                                          priv->cell_area_context,
1490                                          priv->tree_view,
1491                                          cell->data,
1492                                          &zero_cell_area,
1493                                          &allocation);
1494
1495       if (allocation.x <= x && x <= allocation.x + allocation.width)
1496         {
1497           match = cell->data;
1498           break;
1499         }
1500     }
1501
1502   g_list_free (list);
1503
1504   return match;
1505 }
1506
1507 /* Public Functions */
1508
1509
1510 /**
1511  * gtk_tree_view_column_new:
1512  *
1513  * Creates a new #GtkTreeViewColumn.
1514  *
1515  * Return value: A newly created #GtkTreeViewColumn.
1516  **/
1517 GtkTreeViewColumn *
1518 gtk_tree_view_column_new (void)
1519 {
1520   GtkTreeViewColumn *tree_column;
1521
1522   tree_column = g_object_new (GTK_TYPE_TREE_VIEW_COLUMN, NULL);
1523
1524   return tree_column;
1525 }
1526
1527 /**
1528  * gtk_tree_view_column_new_with_area:
1529  * @area: the #GtkCellArea that the newly created column should use to layout cells.
1530  *
1531  * Creates a new #GtkTreeViewColumn using @area to render it's cells.
1532  *
1533  * Return value: A newly created #GtkTreeViewColumn.
1534  *
1535  * Since: 3.0
1536  */
1537 GtkTreeViewColumn *
1538 gtk_tree_view_column_new_with_area (GtkCellArea *area)
1539 {
1540   GtkTreeViewColumn *tree_column;
1541
1542   tree_column = g_object_new (GTK_TYPE_TREE_VIEW_COLUMN, "cell-area", area, NULL);
1543
1544   return tree_column;
1545 }
1546
1547
1548 /**
1549  * gtk_tree_view_column_new_with_attributes:
1550  * @title: The title to set the header to.
1551  * @cell: The #GtkCellRenderer.
1552  * @Varargs: A %NULL-terminated list of attributes.
1553  *
1554  * Creates a new #GtkTreeViewColumn with a number of default values.  This is
1555  * equivalent to calling gtk_tree_view_column_set_title(),
1556  * gtk_tree_view_column_pack_start(), and
1557  * gtk_tree_view_column_set_attributes() on the newly created #GtkTreeViewColumn.
1558  *
1559  * Here's a simple example:
1560  * |[
1561  *  enum { TEXT_COLUMN, COLOR_COLUMN, N_COLUMNS };
1562  *  ...
1563  *  {
1564  *    GtkTreeViewColumn *column;
1565  *    GtkCellRenderer   *renderer = gtk_cell_renderer_text_new ();
1566  *
1567  *    column = gtk_tree_view_column_new_with_attributes ("Title",
1568  *                                                       renderer,
1569  *                                                       "text", TEXT_COLUMN,
1570  *                                                       "foreground", COLOR_COLUMN,
1571  *                                                       NULL);
1572  *  }
1573  * ]|
1574  *
1575  * Return value: A newly created #GtkTreeViewColumn.
1576  **/
1577 GtkTreeViewColumn *
1578 gtk_tree_view_column_new_with_attributes (const gchar     *title,
1579                                           GtkCellRenderer *cell,
1580                                           ...)
1581 {
1582   GtkTreeViewColumn *retval;
1583   va_list args;
1584
1585   retval = gtk_tree_view_column_new ();
1586
1587   gtk_tree_view_column_set_title (retval, title);
1588   gtk_tree_view_column_pack_start (retval, cell, TRUE);
1589
1590   va_start (args, cell);
1591   gtk_tree_view_column_set_attributesv (retval, cell, args);
1592   va_end (args);
1593
1594   return retval;
1595 }
1596
1597 /**
1598  * gtk_tree_view_column_pack_start:
1599  * @tree_column: A #GtkTreeViewColumn.
1600  * @cell: The #GtkCellRenderer.
1601  * @expand: %TRUE if @cell is to be given extra space allocated to @tree_column.
1602  *
1603  * Packs the @cell into the beginning of the column. If @expand is %FALSE, then
1604  * the @cell is allocated no more space than it needs. Any unused space is divided
1605  * evenly between cells for which @expand is %TRUE.
1606  **/
1607 void
1608 gtk_tree_view_column_pack_start (GtkTreeViewColumn *tree_column,
1609                                  GtkCellRenderer   *cell,
1610                                  gboolean           expand)
1611 {
1612   gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (tree_column), cell, expand);
1613 }
1614
1615 /**
1616  * gtk_tree_view_column_pack_end:
1617  * @tree_column: A #GtkTreeViewColumn.
1618  * @cell: The #GtkCellRenderer.
1619  * @expand: %TRUE if @cell is to be given extra space allocated to @tree_column.
1620  *
1621  * Adds the @cell to end of the column. If @expand is %FALSE, then the @cell
1622  * is allocated no more space than it needs. Any unused space is divided
1623  * evenly between cells for which @expand is %TRUE.
1624  **/
1625 void
1626 gtk_tree_view_column_pack_end (GtkTreeViewColumn  *tree_column,
1627                                GtkCellRenderer    *cell,
1628                                gboolean            expand)
1629 {
1630   gtk_cell_layout_pack_end (GTK_CELL_LAYOUT (tree_column), cell, expand);
1631 }
1632
1633 /**
1634  * gtk_tree_view_column_clear:
1635  * @tree_column: A #GtkTreeViewColumn
1636  *
1637  * Unsets all the mappings on all renderers on the @tree_column.
1638  **/
1639 void
1640 gtk_tree_view_column_clear (GtkTreeViewColumn *tree_column)
1641 {
1642   gtk_cell_layout_clear (GTK_CELL_LAYOUT (tree_column));
1643 }
1644
1645 /**
1646  * gtk_tree_view_column_add_attribute:
1647  * @tree_column: A #GtkTreeViewColumn.
1648  * @cell_renderer: the #GtkCellRenderer to set attributes on
1649  * @attribute: An attribute on the renderer
1650  * @column: The column position on the model to get the attribute from.
1651  *
1652  * Adds an attribute mapping to the list in @tree_column.  The @column is the
1653  * column of the model to get a value from, and the @attribute is the
1654  * parameter on @cell_renderer to be set from the value. So for example
1655  * if column 2 of the model contains strings, you could have the
1656  * "text" attribute of a #GtkCellRendererText get its values from
1657  * column 2.
1658  **/
1659 void
1660 gtk_tree_view_column_add_attribute (GtkTreeViewColumn *tree_column,
1661                                     GtkCellRenderer   *cell_renderer,
1662                                     const gchar       *attribute,
1663                                     gint               column)
1664 {
1665   gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (tree_column),
1666                                  cell_renderer, attribute, column);
1667 }
1668
1669 static void
1670 gtk_tree_view_column_set_attributesv (GtkTreeViewColumn *tree_column,
1671                                       GtkCellRenderer   *cell_renderer,
1672                                       va_list            args)
1673 {
1674   GtkTreeViewColumnPrivate *priv = tree_column->priv;
1675   gchar *attribute;
1676   gint column;
1677
1678   attribute = va_arg (args, gchar *);
1679
1680   gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (priv->cell_area),
1681                                     cell_renderer);
1682
1683   while (attribute != NULL)
1684     {
1685       column = va_arg (args, gint);
1686       gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (priv->cell_area),
1687                                      cell_renderer, attribute, column);
1688       attribute = va_arg (args, gchar *);
1689     }
1690 }
1691
1692 /**
1693  * gtk_tree_view_column_set_attributes:
1694  * @tree_column: A #GtkTreeViewColumn.
1695  * @cell_renderer: the #GtkCellRenderer we're setting the attributes of
1696  * @Varargs: A %NULL-terminated list of attributes.
1697  *
1698  * Sets the attributes in the list as the attributes of @tree_column.
1699  * The attributes should be in attribute/column order, as in
1700  * gtk_tree_view_column_add_attribute(). All existing attributes
1701  * are removed, and replaced with the new attributes.
1702  **/
1703 void
1704 gtk_tree_view_column_set_attributes (GtkTreeViewColumn *tree_column,
1705                                      GtkCellRenderer   *cell_renderer,
1706                                      ...)
1707 {
1708   va_list args;
1709
1710   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1711   g_return_if_fail (GTK_IS_CELL_RENDERER (cell_renderer));
1712
1713   va_start (args, cell_renderer);
1714   gtk_tree_view_column_set_attributesv (tree_column, cell_renderer, args);
1715   va_end (args);
1716 }
1717
1718
1719 /**
1720  * gtk_tree_view_column_set_cell_data_func:
1721  * @tree_column: A #GtkTreeViewColumn
1722  * @cell_renderer: A #GtkCellRenderer
1723  * @func: The #GtkTreeViewColumnFunc to use.
1724  * @func_data: The user data for @func.
1725  * @destroy: The destroy notification for @func_data
1726  *
1727  * Sets the #GtkTreeViewColumnFunc to use for the column.  This
1728  * function is used instead of the standard attributes mapping for
1729  * setting the column value, and should set the value of @tree_column's
1730  * cell renderer as appropriate.  @func may be %NULL to remove an
1731  * older one.
1732  **/
1733 void
1734 gtk_tree_view_column_set_cell_data_func (GtkTreeViewColumn   *tree_column,
1735                                          GtkCellRenderer     *cell_renderer,
1736                                          GtkTreeCellDataFunc  func,
1737                                          gpointer             func_data,
1738                                          GDestroyNotify       destroy)
1739 {
1740   gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (tree_column),
1741                                       cell_renderer,
1742                                       (GtkCellLayoutDataFunc)func,
1743                                       func_data, destroy);
1744 }
1745
1746
1747 /**
1748  * gtk_tree_view_column_clear_attributes:
1749  * @tree_column: a #GtkTreeViewColumn
1750  * @cell_renderer: a #GtkCellRenderer to clear the attribute mapping on.
1751  *
1752  * Clears all existing attributes previously set with
1753  * gtk_tree_view_column_set_attributes().
1754  **/
1755 void
1756 gtk_tree_view_column_clear_attributes (GtkTreeViewColumn *tree_column,
1757                                        GtkCellRenderer   *cell_renderer)
1758 {
1759   gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (tree_column),
1760                                     cell_renderer);
1761 }
1762
1763 /**
1764  * gtk_tree_view_column_set_spacing:
1765  * @tree_column: A #GtkTreeViewColumn.
1766  * @spacing: distance between cell renderers in pixels.
1767  *
1768  * Sets the spacing field of @tree_column, which is the number of pixels to
1769  * place between cell renderers packed into it.
1770  **/
1771 void
1772 gtk_tree_view_column_set_spacing (GtkTreeViewColumn *tree_column,
1773                                   gint               spacing)
1774 {
1775   GtkTreeViewColumnPrivate *priv;
1776
1777   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1778   g_return_if_fail (spacing >= 0);
1779
1780   priv = tree_column->priv;
1781
1782   gtk_cell_area_box_set_spacing (GTK_CELL_AREA_BOX (priv->cell_area),
1783                                  spacing);
1784   if (priv->tree_view)
1785     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
1786 }
1787
1788 /**
1789  * gtk_tree_view_column_get_spacing:
1790  * @tree_column: A #GtkTreeViewColumn.
1791  *
1792  * Returns the spacing of @tree_column.
1793  *
1794  * Return value: the spacing of @tree_column.
1795  **/
1796 gint
1797 gtk_tree_view_column_get_spacing (GtkTreeViewColumn *tree_column)
1798 {
1799   GtkTreeViewColumnPrivate *priv;
1800
1801   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
1802
1803   priv = tree_column->priv;
1804
1805   return gtk_cell_area_box_get_spacing (GTK_CELL_AREA_BOX (priv->cell_area));
1806 }
1807
1808 /* Options for manipulating the columns */
1809
1810 /**
1811  * gtk_tree_view_column_set_visible:
1812  * @tree_column: A #GtkTreeViewColumn.
1813  * @visible: %TRUE if the @tree_column is visible.
1814  *
1815  * Sets the visibility of @tree_column.
1816  **/
1817 void
1818 gtk_tree_view_column_set_visible (GtkTreeViewColumn *tree_column,
1819                                   gboolean           visible)
1820 {
1821   GtkTreeViewColumnPrivate *priv;
1822
1823   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1824
1825   priv    = tree_column->priv;
1826   visible = !! visible;
1827
1828   if (priv->visible == visible)
1829     return;
1830
1831   priv->visible = visible;
1832
1833   if (priv->visible)
1834     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
1835
1836   gtk_tree_view_column_update_button (tree_column);
1837   g_object_notify (G_OBJECT (tree_column), "visible");
1838 }
1839
1840 /**
1841  * gtk_tree_view_column_get_visible:
1842  * @tree_column: A #GtkTreeViewColumn.
1843  *
1844  * Returns %TRUE if @tree_column is visible.
1845  *
1846  * Return value: whether the column is visible or not.  If it is visible, then
1847  * the tree will show the column.
1848  **/
1849 gboolean
1850 gtk_tree_view_column_get_visible (GtkTreeViewColumn *tree_column)
1851 {
1852   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
1853
1854   return tree_column->priv->visible;
1855 }
1856
1857 /**
1858  * gtk_tree_view_column_set_resizable:
1859  * @tree_column: A #GtkTreeViewColumn
1860  * @resizable: %TRUE, if the column can be resized
1861  *
1862  * If @resizable is %TRUE, then the user can explicitly resize the column by
1863  * grabbing the outer edge of the column button.  If resizable is %TRUE and
1864  * sizing mode of the column is #GTK_TREE_VIEW_COLUMN_AUTOSIZE, then the sizing
1865  * mode is changed to #GTK_TREE_VIEW_COLUMN_GROW_ONLY.
1866  **/
1867 void
1868 gtk_tree_view_column_set_resizable (GtkTreeViewColumn *tree_column,
1869                                     gboolean           resizable)
1870 {
1871   GtkTreeViewColumnPrivate *priv;
1872
1873   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1874
1875   priv      = tree_column->priv;
1876   resizable = !! resizable;
1877
1878   if (priv->resizable == resizable)
1879     return;
1880
1881   priv->resizable = resizable;
1882
1883   if (resizable && priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
1884     gtk_tree_view_column_set_sizing (tree_column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
1885
1886   gtk_tree_view_column_update_button (tree_column);
1887
1888   g_object_notify (G_OBJECT (tree_column), "resizable");
1889 }
1890
1891 /**
1892  * gtk_tree_view_column_get_resizable:
1893  * @tree_column: A #GtkTreeViewColumn
1894  *
1895  * Returns %TRUE if the @tree_column can be resized by the end user.
1896  *
1897  * Return value: %TRUE, if the @tree_column can be resized.
1898  **/
1899 gboolean
1900 gtk_tree_view_column_get_resizable (GtkTreeViewColumn *tree_column)
1901 {
1902   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
1903
1904   return tree_column->priv->resizable;
1905 }
1906
1907
1908 /**
1909  * gtk_tree_view_column_set_sizing:
1910  * @tree_column: A #GtkTreeViewColumn.
1911  * @type: The #GtkTreeViewColumnSizing.
1912  *
1913  * Sets the growth behavior of @tree_column to @type.
1914  **/
1915 void
1916 gtk_tree_view_column_set_sizing (GtkTreeViewColumn       *tree_column,
1917                                  GtkTreeViewColumnSizing  type)
1918 {
1919   GtkTreeViewColumnPrivate *priv;
1920
1921   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1922
1923   priv      = tree_column->priv;
1924
1925   if (type == priv->column_type)
1926     return;
1927
1928   if (type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
1929     gtk_tree_view_column_set_resizable (tree_column, FALSE);
1930
1931   priv->column_type = type;
1932
1933   gtk_tree_view_column_update_button (tree_column);
1934
1935   g_object_notify (G_OBJECT (tree_column), "sizing");
1936 }
1937
1938 /**
1939  * gtk_tree_view_column_get_sizing:
1940  * @tree_column: A #GtkTreeViewColumn.
1941  *
1942  * Returns the current type of @tree_column.
1943  *
1944  * Return value: The type of @tree_column.
1945  **/
1946 GtkTreeViewColumnSizing
1947 gtk_tree_view_column_get_sizing (GtkTreeViewColumn *tree_column)
1948 {
1949   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
1950
1951   return tree_column->priv->column_type;
1952 }
1953
1954 /**
1955  * gtk_tree_view_column_get_width:
1956  * @tree_column: A #GtkTreeViewColumn.
1957  *
1958  * Returns the current size of @tree_column in pixels.
1959  *
1960  * Return value: The current width of @tree_column.
1961  **/
1962 gint
1963 gtk_tree_view_column_get_width (GtkTreeViewColumn *tree_column)
1964 {
1965   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
1966
1967   return tree_column->priv->width;
1968 }
1969
1970 gint
1971 _gtk_tree_view_column_request_width (GtkTreeViewColumn *tree_column)
1972 {
1973   GtkTreeViewColumnPrivate *priv;
1974   gint real_requested_width;
1975
1976   priv = tree_column->priv;
1977
1978   if (priv->use_resized_width)
1979     {
1980       real_requested_width = priv->resized_width;
1981     }
1982   else if (priv->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
1983     {
1984       real_requested_width = priv->fixed_width;
1985     }
1986   else if (gtk_tree_view_get_headers_visible (GTK_TREE_VIEW (priv->tree_view)))
1987     {
1988       gint button_request;
1989       gint requested_width;
1990
1991       gtk_cell_area_context_get_preferred_width (priv->cell_area_context, &requested_width, NULL);
1992       requested_width += priv->padding;
1993
1994       gtk_widget_get_preferred_width (priv->button, &button_request, NULL);
1995       real_requested_width = MAX (requested_width, button_request);
1996     }
1997   else
1998     {
1999       gint requested_width;
2000
2001       gtk_cell_area_context_get_preferred_width (priv->cell_area_context, &requested_width, NULL);
2002       requested_width += priv->padding;
2003
2004       real_requested_width = requested_width;
2005       if (real_requested_width < 0)
2006         real_requested_width = 0;
2007     }
2008
2009   if (priv->min_width != -1)
2010     real_requested_width = MAX (real_requested_width, priv->min_width);
2011
2012   if (priv->max_width != -1)
2013     real_requested_width = MIN (real_requested_width, priv->max_width);
2014
2015   return real_requested_width;
2016 }
2017
2018 void
2019 _gtk_tree_view_column_allocate (GtkTreeViewColumn *tree_column,
2020                                 int                x_offset,
2021                                 int                width)
2022 {
2023   GtkTreeViewColumnPrivate *priv;
2024   GtkAllocation             allocation;
2025   gboolean                  rtl;
2026
2027   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2028
2029   priv = tree_column->priv;
2030
2031   priv->width = width;
2032
2033   gtk_cell_area_context_allocate (priv->cell_area_context, priv->width - priv->padding, -1);
2034
2035   allocation.x      = x_offset;
2036   allocation.y      = 0;
2037   allocation.width  = width;
2038   allocation.height = _gtk_tree_view_get_header_height (GTK_TREE_VIEW (priv->tree_view));
2039
2040   gtk_widget_size_allocate (priv->button, &allocation);
2041
2042   if (priv->window)
2043     {
2044       rtl = (gtk_widget_get_direction (priv->tree_view) == GTK_TEXT_DIR_RTL);
2045       gdk_window_move_resize (priv->window,
2046                               allocation.x + (rtl ? 0 : allocation.width) - TREE_VIEW_DRAG_WIDTH/2,
2047                               allocation.y,
2048                               TREE_VIEW_DRAG_WIDTH, allocation.height);
2049     }
2050
2051   g_object_notify (G_OBJECT (tree_column), "width");
2052 }
2053
2054 /**
2055  * gtk_tree_view_column_set_fixed_width:
2056  * @tree_column: A #GtkTreeViewColumn.
2057  * @fixed_width: The size to set @tree_column to. Must be greater than 0.
2058  *
2059  * Sets the size of the column in pixels.  This is meaningful only if the sizing
2060  * type is #GTK_TREE_VIEW_COLUMN_FIXED.  The size of the column is clamped to
2061  * the min/max width for the column.  Please note that the min/max width of the
2062  * column doesn't actually affect the "fixed_width" property of the widget, just
2063  * the actual size when displayed.
2064  **/
2065 void
2066 gtk_tree_view_column_set_fixed_width (GtkTreeViewColumn *tree_column,
2067                                       gint               fixed_width)
2068 {
2069   GtkTreeViewColumnPrivate *priv;
2070
2071   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2072   g_return_if_fail (fixed_width > 0);
2073
2074   priv = tree_column->priv;
2075
2076   priv->fixed_width = fixed_width;
2077   priv->use_resized_width = FALSE;
2078
2079   if (priv->tree_view &&
2080       gtk_widget_get_realized (priv->tree_view) &&
2081       priv->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2082     {
2083       gtk_widget_queue_resize (priv->tree_view);
2084     }
2085
2086   g_object_notify (G_OBJECT (tree_column), "fixed-width");
2087 }
2088
2089 /**
2090  * gtk_tree_view_column_get_fixed_width:
2091  * @tree_column: a #GtkTreeViewColumn
2092  *
2093  * Gets the fixed width of the column.  This value is only meaning may not be
2094  * the actual width of the column on the screen, just what is requested.
2095  *
2096  * Return value: the fixed width of the column
2097  **/
2098 gint
2099 gtk_tree_view_column_get_fixed_width (GtkTreeViewColumn *tree_column)
2100 {
2101   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
2102
2103   return tree_column->priv->fixed_width;
2104 }
2105
2106 /**
2107  * gtk_tree_view_column_set_min_width:
2108  * @tree_column: A #GtkTreeViewColumn.
2109  * @min_width: The minimum width of the column in pixels, or -1.
2110  *
2111  * Sets the minimum width of the @tree_column.  If @min_width is -1, then the
2112  * minimum width is unset.
2113  **/
2114 void
2115 gtk_tree_view_column_set_min_width (GtkTreeViewColumn *tree_column,
2116                                     gint               min_width)
2117 {
2118   GtkTreeViewColumnPrivate *priv;
2119
2120   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2121   g_return_if_fail (min_width >= -1);
2122
2123   priv = tree_column->priv;
2124
2125   if (min_width == priv->min_width)
2126     return;
2127
2128   if (priv->visible &&
2129       priv->tree_view != NULL &&
2130       gtk_widget_get_realized (priv->tree_view))
2131     {
2132       if (min_width > priv->width)
2133         gtk_widget_queue_resize (priv->tree_view);
2134     }
2135
2136   priv->min_width = min_width;
2137   g_object_freeze_notify (G_OBJECT (tree_column));
2138   if (priv->max_width != -1 && priv->max_width < min_width)
2139     {
2140       priv->max_width = min_width;
2141       g_object_notify (G_OBJECT (tree_column), "max-width");
2142     }
2143   g_object_notify (G_OBJECT (tree_column), "min-width");
2144   g_object_thaw_notify (G_OBJECT (tree_column));
2145
2146   if (priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2147     _gtk_tree_view_column_autosize (GTK_TREE_VIEW (priv->tree_view),
2148                                     tree_column);
2149 }
2150
2151 /**
2152  * gtk_tree_view_column_get_min_width:
2153  * @tree_column: A #GtkTreeViewColumn.
2154  *
2155  * Returns the minimum width in pixels of the @tree_column, or -1 if no minimum
2156  * width is set.
2157  *
2158  * Return value: The minimum width of the @tree_column.
2159  **/
2160 gint
2161 gtk_tree_view_column_get_min_width (GtkTreeViewColumn *tree_column)
2162 {
2163   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), -1);
2164
2165   return tree_column->priv->min_width;
2166 }
2167
2168 /**
2169  * gtk_tree_view_column_set_max_width:
2170  * @tree_column: A #GtkTreeViewColumn.
2171  * @max_width: The maximum width of the column in pixels, or -1.
2172  *
2173  * Sets the maximum width of the @tree_column.  If @max_width is -1, then the
2174  * maximum width is unset.  Note, the column can actually be wider than max
2175  * width if it's the last column in a view.  In this case, the column expands to
2176  * fill any extra space.
2177  **/
2178 void
2179 gtk_tree_view_column_set_max_width (GtkTreeViewColumn *tree_column,
2180                                     gint               max_width)
2181 {
2182   GtkTreeViewColumnPrivate *priv;
2183
2184   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2185   g_return_if_fail (max_width >= -1);
2186
2187   priv = tree_column->priv;
2188
2189   if (max_width == priv->max_width)
2190     return;
2191
2192   if (priv->visible &&
2193       priv->tree_view != NULL &&
2194       gtk_widget_get_realized (priv->tree_view))
2195     {
2196       if (max_width != -1 && max_width < priv->width)
2197         gtk_widget_queue_resize (priv->tree_view);
2198     }
2199
2200   priv->max_width = max_width;
2201   g_object_freeze_notify (G_OBJECT (tree_column));
2202   if (max_width != -1 && max_width < priv->min_width)
2203     {
2204       priv->min_width = max_width;
2205       g_object_notify (G_OBJECT (tree_column), "min-width");
2206     }
2207   g_object_notify (G_OBJECT (tree_column), "max-width");
2208   g_object_thaw_notify (G_OBJECT (tree_column));
2209
2210   if (priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2211     _gtk_tree_view_column_autosize (GTK_TREE_VIEW (priv->tree_view),
2212                                     tree_column);
2213 }
2214
2215 /**
2216  * gtk_tree_view_column_get_max_width:
2217  * @tree_column: A #GtkTreeViewColumn.
2218  *
2219  * Returns the maximum width in pixels of the @tree_column, or -1 if no maximum
2220  * width is set.
2221  *
2222  * Return value: The maximum width of the @tree_column.
2223  **/
2224 gint
2225 gtk_tree_view_column_get_max_width (GtkTreeViewColumn *tree_column)
2226 {
2227   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), -1);
2228
2229   return tree_column->priv->max_width;
2230 }
2231
2232 /**
2233  * gtk_tree_view_column_clicked:
2234  * @tree_column: a #GtkTreeViewColumn
2235  *
2236  * Emits the "clicked" signal on the column.  This function will only work if
2237  * @tree_column is clickable.
2238  **/
2239 void
2240 gtk_tree_view_column_clicked (GtkTreeViewColumn *tree_column)
2241 {
2242   GtkTreeViewColumnPrivate *priv;
2243
2244   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2245
2246   priv = tree_column->priv;
2247
2248   if (priv->visible &&
2249       priv->button &&
2250       priv->clickable)
2251     gtk_button_clicked (GTK_BUTTON (priv->button));
2252 }
2253
2254 /**
2255  * gtk_tree_view_column_set_title:
2256  * @tree_column: A #GtkTreeViewColumn.
2257  * @title: The title of the @tree_column.
2258  *
2259  * Sets the title of the @tree_column.  If a custom widget has been set, then
2260  * this value is ignored.
2261  **/
2262 void
2263 gtk_tree_view_column_set_title (GtkTreeViewColumn *tree_column,
2264                                 const gchar       *title)
2265 {
2266   GtkTreeViewColumnPrivate *priv;
2267   gchar                    *new_title;
2268
2269   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2270
2271   priv = tree_column->priv;
2272
2273   new_title = g_strdup (title);
2274   g_free (priv->title);
2275   priv->title = new_title;
2276
2277   gtk_tree_view_column_update_button (tree_column);
2278   g_object_notify (G_OBJECT (tree_column), "title");
2279 }
2280
2281 /**
2282  * gtk_tree_view_column_get_title:
2283  * @tree_column: A #GtkTreeViewColumn.
2284  *
2285  * Returns the title of the widget.
2286  *
2287  * Return value: the title of the column. This string should not be
2288  * modified or freed.
2289  **/
2290 G_CONST_RETURN gchar *
2291 gtk_tree_view_column_get_title (GtkTreeViewColumn *tree_column)
2292 {
2293   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
2294
2295   return tree_column->priv->title;
2296 }
2297
2298 /**
2299  * gtk_tree_view_column_set_expand:
2300  * @tree_column: A #GtkTreeViewColumn
2301  * @expand: %TRUE if the column should take available extra space, %FALSE if not
2302  *
2303  * Sets the column to take available extra space.  This space is shared equally
2304  * amongst all columns that have the expand set to %TRUE.  If no column has this
2305  * option set, then the last column gets all extra space.  By default, every
2306  * column is created with this %FALSE.
2307  *
2308  * Since: 2.4
2309  **/
2310 void
2311 gtk_tree_view_column_set_expand (GtkTreeViewColumn *tree_column,
2312                                  gboolean           expand)
2313 {
2314   GtkTreeViewColumnPrivate *priv;
2315
2316   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2317
2318   priv = tree_column->priv;
2319
2320   expand = expand?TRUE:FALSE;
2321   if (priv->expand == expand)
2322     return;
2323   priv->expand = expand;
2324
2325   if (priv->visible &&
2326       priv->tree_view != NULL &&
2327       gtk_widget_get_realized (priv->tree_view))
2328     {
2329       /* We want to continue using the original width of the
2330        * column that includes additional space added by the user
2331        * resizing the columns and possibly extra (expanded) space, which
2332        * are not included in the resized width.
2333        */
2334       priv->use_resized_width = FALSE;
2335
2336       gtk_widget_queue_resize (priv->tree_view);
2337     }
2338
2339   g_object_notify (G_OBJECT (tree_column), "expand");
2340 }
2341
2342 /**
2343  * gtk_tree_view_column_get_expand:
2344  * @tree_column: a #GtkTreeViewColumn
2345  *
2346  * Return %TRUE if the column expands to take any available space.
2347  *
2348  * Return value: %TRUE, if the column expands
2349  *
2350  * Since: 2.4
2351  **/
2352 gboolean
2353 gtk_tree_view_column_get_expand (GtkTreeViewColumn *tree_column)
2354 {
2355   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2356
2357   return tree_column->priv->expand;
2358 }
2359
2360 /**
2361  * gtk_tree_view_column_set_clickable:
2362  * @tree_column: A #GtkTreeViewColumn.
2363  * @clickable: %TRUE if the header is active.
2364  *
2365  * Sets the header to be active if @active is %TRUE.  When the header is active,
2366  * then it can take keyboard focus, and can be clicked.
2367  **/
2368 void
2369 gtk_tree_view_column_set_clickable (GtkTreeViewColumn *tree_column,
2370                                     gboolean           clickable)
2371 {
2372   GtkTreeViewColumnPrivate *priv;
2373
2374   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2375
2376   priv = tree_column->priv;
2377
2378   clickable = !! clickable;
2379   if (priv->clickable == clickable)
2380     return;
2381
2382   priv->clickable = clickable;
2383   gtk_tree_view_column_update_button (tree_column);
2384   g_object_notify (G_OBJECT (tree_column), "clickable");
2385 }
2386
2387 /**
2388  * gtk_tree_view_column_get_clickable:
2389  * @tree_column: a #GtkTreeViewColumn
2390  *
2391  * Returns %TRUE if the user can click on the header for the column.
2392  *
2393  * Return value: %TRUE if user can click the column header.
2394  **/
2395 gboolean
2396 gtk_tree_view_column_get_clickable (GtkTreeViewColumn *tree_column)
2397 {
2398   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2399
2400   return tree_column->priv->clickable;
2401 }
2402
2403 /**
2404  * gtk_tree_view_column_set_widget:
2405  * @tree_column: A #GtkTreeViewColumn.
2406  * @widget: (allow-none): A child #GtkWidget, or %NULL.
2407  *
2408  * Sets the widget in the header to be @widget.  If widget is %NULL, then the
2409  * header button is set with a #GtkLabel set to the title of @tree_column.
2410  **/
2411 void
2412 gtk_tree_view_column_set_widget (GtkTreeViewColumn *tree_column,
2413                                  GtkWidget         *widget)
2414 {
2415   GtkTreeViewColumnPrivate *priv;
2416
2417   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2418   g_return_if_fail (widget == NULL || GTK_IS_WIDGET (widget));
2419
2420   priv = tree_column->priv;
2421
2422   if (widget)
2423     g_object_ref_sink (widget);
2424
2425   if (priv->child)
2426     g_object_unref (priv->child);
2427
2428   priv->child = widget;
2429   gtk_tree_view_column_update_button (tree_column);
2430   g_object_notify (G_OBJECT (tree_column), "widget");
2431 }
2432
2433 /**
2434  * gtk_tree_view_column_get_widget:
2435  * @tree_column: A #GtkTreeViewColumn.
2436  *
2437  * Returns the #GtkWidget in the button on the column header.
2438  * If a custom widget has not been set then %NULL is returned.
2439  *
2440  * Return value: (transfer none): The #GtkWidget in the column
2441  *     header, or %NULL
2442  **/
2443 GtkWidget *
2444 gtk_tree_view_column_get_widget (GtkTreeViewColumn *tree_column)
2445 {
2446   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
2447
2448   return tree_column->priv->child;
2449 }
2450
2451 /**
2452  * gtk_tree_view_column_set_alignment:
2453  * @tree_column: A #GtkTreeViewColumn.
2454  * @xalign: The alignment, which is between [0.0 and 1.0] inclusive.
2455  *
2456  * Sets the alignment of the title or custom widget inside the column header.
2457  * The alignment determines its location inside the button -- 0.0 for left, 0.5
2458  * for center, 1.0 for right.
2459  **/
2460 void
2461 gtk_tree_view_column_set_alignment (GtkTreeViewColumn *tree_column,
2462                                     gfloat             xalign)
2463 {
2464   GtkTreeViewColumnPrivate *priv;
2465
2466   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2467
2468   priv = tree_column->priv;
2469
2470   xalign = CLAMP (xalign, 0.0, 1.0);
2471
2472   if (priv->xalign == xalign)
2473     return;
2474
2475   priv->xalign = xalign;
2476   gtk_tree_view_column_update_button (tree_column);
2477   g_object_notify (G_OBJECT (tree_column), "alignment");
2478 }
2479
2480 /**
2481  * gtk_tree_view_column_get_alignment:
2482  * @tree_column: A #GtkTreeViewColumn.
2483  *
2484  * Returns the current x alignment of @tree_column.  This value can range
2485  * between 0.0 and 1.0.
2486  *
2487  * Return value: The current alignent of @tree_column.
2488  **/
2489 gfloat
2490 gtk_tree_view_column_get_alignment (GtkTreeViewColumn *tree_column)
2491 {
2492   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0.5);
2493
2494   return tree_column->priv->xalign;
2495 }
2496
2497 /**
2498  * gtk_tree_view_column_set_reorderable:
2499  * @tree_column: A #GtkTreeViewColumn
2500  * @reorderable: %TRUE, if the column can be reordered.
2501  *
2502  * If @reorderable is %TRUE, then the column can be reordered by the end user
2503  * dragging the header.
2504  **/
2505 void
2506 gtk_tree_view_column_set_reorderable (GtkTreeViewColumn *tree_column,
2507                                       gboolean           reorderable)
2508 {
2509   GtkTreeViewColumnPrivate *priv;
2510
2511   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2512
2513   priv = tree_column->priv;
2514
2515   /*  if (reorderable)
2516       gtk_tree_view_column_set_clickable (tree_column, TRUE);*/
2517
2518   if (priv->reorderable == (reorderable?TRUE:FALSE))
2519     return;
2520
2521   priv->reorderable = (reorderable?TRUE:FALSE);
2522   gtk_tree_view_column_update_button (tree_column);
2523   g_object_notify (G_OBJECT (tree_column), "reorderable");
2524 }
2525
2526 /**
2527  * gtk_tree_view_column_get_reorderable:
2528  * @tree_column: A #GtkTreeViewColumn
2529  *
2530  * Returns %TRUE if the @tree_column can be reordered by the user.
2531  *
2532  * Return value: %TRUE if the @tree_column can be reordered by the user.
2533  **/
2534 gboolean
2535 gtk_tree_view_column_get_reorderable (GtkTreeViewColumn *tree_column)
2536 {
2537   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2538
2539   return tree_column->priv->reorderable;
2540 }
2541
2542
2543 /**
2544  * gtk_tree_view_column_set_sort_column_id:
2545  * @tree_column: a #GtkTreeViewColumn
2546  * @sort_column_id: The @sort_column_id of the model to sort on.
2547  *
2548  * Sets the logical @sort_column_id that this column sorts on when this column
2549  * is selected for sorting.  Doing so makes the column header clickable.
2550  **/
2551 void
2552 gtk_tree_view_column_set_sort_column_id (GtkTreeViewColumn *tree_column,
2553                                          gint               sort_column_id)
2554 {
2555   GtkTreeViewColumnPrivate *priv;
2556
2557   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2558   g_return_if_fail (sort_column_id >= -1);
2559
2560   priv = tree_column->priv;
2561
2562   if (priv->sort_column_id == sort_column_id)
2563     return;
2564
2565   priv->sort_column_id = sort_column_id;
2566
2567   /* Handle unsetting the id */
2568   if (sort_column_id == -1)
2569     {
2570       GtkTreeModel *model = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
2571
2572       if (priv->sort_clicked_signal)
2573         {
2574           g_signal_handler_disconnect (tree_column, priv->sort_clicked_signal);
2575           priv->sort_clicked_signal = 0;
2576         }
2577
2578       if (priv->sort_column_changed_signal)
2579         {
2580           g_signal_handler_disconnect (model, priv->sort_column_changed_signal);
2581           priv->sort_column_changed_signal = 0;
2582         }
2583
2584       gtk_tree_view_column_set_sort_order (tree_column, GTK_SORT_ASCENDING);
2585       gtk_tree_view_column_set_sort_indicator (tree_column, FALSE);
2586       gtk_tree_view_column_set_clickable (tree_column, FALSE);
2587       g_object_notify (G_OBJECT (tree_column), "sort-column-id");
2588       return;
2589     }
2590
2591   gtk_tree_view_column_set_clickable (tree_column, TRUE);
2592
2593   if (! priv->sort_clicked_signal)
2594     priv->sort_clicked_signal = g_signal_connect (tree_column,
2595                                                   "clicked",
2596                                                   G_CALLBACK (gtk_tree_view_column_sort),
2597                                                   NULL);
2598
2599   gtk_tree_view_column_setup_sort_column_id_callback (tree_column);
2600   g_object_notify (G_OBJECT (tree_column), "sort-column-id");
2601 }
2602
2603 /**
2604  * gtk_tree_view_column_get_sort_column_id:
2605  * @tree_column: a #GtkTreeViewColumn
2606  *
2607  * Gets the logical @sort_column_id that the model sorts on when this
2608  * column is selected for sorting.
2609  * See gtk_tree_view_column_set_sort_column_id().
2610  *
2611  * Return value: the current @sort_column_id for this column, or -1 if
2612  *               this column can't be used for sorting.
2613  **/
2614 gint
2615 gtk_tree_view_column_get_sort_column_id (GtkTreeViewColumn *tree_column)
2616 {
2617   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
2618
2619   return tree_column->priv->sort_column_id;
2620 }
2621
2622 /**
2623  * gtk_tree_view_column_set_sort_indicator:
2624  * @tree_column: a #GtkTreeViewColumn
2625  * @setting: %TRUE to display an indicator that the column is sorted
2626  *
2627  * Call this function with a @setting of %TRUE to display an arrow in
2628  * the header button indicating the column is sorted. Call
2629  * gtk_tree_view_column_set_sort_order() to change the direction of
2630  * the arrow.
2631  *
2632  **/
2633 void
2634 gtk_tree_view_column_set_sort_indicator (GtkTreeViewColumn     *tree_column,
2635                                          gboolean               setting)
2636 {
2637   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2638
2639   setting = setting != FALSE;
2640
2641   if (setting == tree_column->priv->show_sort_indicator)
2642     return;
2643
2644   tree_column->priv->show_sort_indicator = setting;
2645   gtk_tree_view_column_update_button (tree_column);
2646   g_object_notify (G_OBJECT (tree_column), "sort-indicator");
2647 }
2648
2649 /**
2650  * gtk_tree_view_column_get_sort_indicator:
2651  * @tree_column: a #GtkTreeViewColumn
2652  *
2653  * Gets the value set by gtk_tree_view_column_set_sort_indicator().
2654  *
2655  * Return value: whether the sort indicator arrow is displayed
2656  **/
2657 gboolean
2658 gtk_tree_view_column_get_sort_indicator  (GtkTreeViewColumn     *tree_column)
2659 {
2660   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2661
2662   return tree_column->priv->show_sort_indicator;
2663 }
2664
2665 /**
2666  * gtk_tree_view_column_set_sort_order:
2667  * @tree_column: a #GtkTreeViewColumn
2668  * @order: sort order that the sort indicator should indicate
2669  *
2670  * Changes the appearance of the sort indicator.
2671  *
2672  * This <emphasis>does not</emphasis> actually sort the model.  Use
2673  * gtk_tree_view_column_set_sort_column_id() if you want automatic sorting
2674  * support.  This function is primarily for custom sorting behavior, and should
2675  * be used in conjunction with gtk_tree_sortable_set_sort_column() to do
2676  * that. For custom models, the mechanism will vary.
2677  *
2678  * The sort indicator changes direction to indicate normal sort or reverse sort.
2679  * Note that you must have the sort indicator enabled to see anything when
2680  * calling this function; see gtk_tree_view_column_set_sort_indicator().
2681  **/
2682 void
2683 gtk_tree_view_column_set_sort_order      (GtkTreeViewColumn     *tree_column,
2684                                           GtkSortType            order)
2685 {
2686   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2687
2688   if (order == tree_column->priv->sort_order)
2689     return;
2690
2691   tree_column->priv->sort_order = order;
2692   gtk_tree_view_column_update_button (tree_column);
2693   g_object_notify (G_OBJECT (tree_column), "sort-order");
2694 }
2695
2696 /**
2697  * gtk_tree_view_column_get_sort_order:
2698  * @tree_column: a #GtkTreeViewColumn
2699  *
2700  * Gets the value set by gtk_tree_view_column_set_sort_order().
2701  *
2702  * Return value: the sort order the sort indicator is indicating
2703  **/
2704 GtkSortType
2705 gtk_tree_view_column_get_sort_order      (GtkTreeViewColumn     *tree_column)
2706 {
2707   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
2708
2709   return tree_column->priv->sort_order;
2710 }
2711
2712 /**
2713  * gtk_tree_view_column_cell_set_cell_data:
2714  * @tree_column: A #GtkTreeViewColumn.
2715  * @tree_model: The #GtkTreeModel to to get the cell renderers attributes from.
2716  * @iter: The #GtkTreeIter to to get the cell renderer's attributes from.
2717  * @is_expander: %TRUE, if the row has children
2718  * @is_expanded: %TRUE, if the row has visible children
2719  *
2720  * Sets the cell renderer based on the @tree_model and @iter.  That is, for
2721  * every attribute mapping in @tree_column, it will get a value from the set
2722  * column on the @iter, and use that value to set the attribute on the cell
2723  * renderer.  This is used primarily by the #GtkTreeView.
2724  **/
2725 void
2726 gtk_tree_view_column_cell_set_cell_data (GtkTreeViewColumn *tree_column,
2727                                          GtkTreeModel      *tree_model,
2728                                          GtkTreeIter       *iter,
2729                                          gboolean           is_expander,
2730                                          gboolean           is_expanded)
2731 {
2732   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2733
2734   if (tree_model == NULL)
2735     return;
2736
2737   gtk_cell_area_apply_attributes (tree_column->priv->cell_area, tree_model, iter,
2738                                   is_expander, is_expanded);
2739 }
2740
2741 /**
2742  * gtk_tree_view_column_cell_get_size:
2743  * @tree_column: A #GtkTreeViewColumn.
2744  * @cell_area: (allow-none): The area a cell in the column will be allocated, or %NULL
2745  * @x_offset: (allow-none): location to return x offset of a cell relative to @cell_area, or %NULL
2746  * @y_offset: (allow-none): location to return y offset of a cell relative to @cell_area, or %NULL
2747  * @width: (allow-none): location to return width needed to render a cell, or %NULL
2748  * @height: (allow-none): location to return height needed to render a cell, or %NULL
2749  *
2750  * Obtains the width and height needed to render the column.  This is used
2751  * primarily by the #GtkTreeView.
2752  **/
2753 void
2754 gtk_tree_view_column_cell_get_size (GtkTreeViewColumn  *tree_column,
2755                                     const GdkRectangle *cell_area,
2756                                     gint               *x_offset,
2757                                     gint               *y_offset,
2758                                     gint               *width,
2759                                     gint               *height)
2760 {
2761   GtkTreeViewColumnPrivate *priv;
2762   gint min_width = 0, min_height = 0;
2763
2764   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2765
2766   priv = tree_column->priv;
2767
2768   g_signal_handler_block (priv->cell_area_context,
2769                           priv->context_changed_signal);
2770
2771   gtk_cell_area_get_preferred_width (priv->cell_area,
2772                                      priv->cell_area_context,
2773                                      priv->tree_view,
2774                                      NULL, NULL);
2775
2776   gtk_cell_area_context_get_preferred_width (priv->cell_area_context, &min_width, NULL);
2777
2778   gtk_cell_area_get_preferred_height_for_width (priv->cell_area,
2779                                                 priv->cell_area_context,
2780                                                 priv->tree_view,
2781                                                 min_width,
2782                                                 &min_height,
2783                                                 NULL);
2784
2785   g_signal_handler_unblock (priv->cell_area_context,
2786                             priv->context_changed_signal);
2787
2788
2789   if (height)
2790     * height = min_height;
2791   if (width)
2792     * width = min_width;
2793
2794 }
2795
2796 /**
2797  * gtk_tree_view_column_cell_render:
2798  * @tree_column: A #GtkTreeViewColumn.
2799  * @cr: cairo context to draw to
2800  * @background_area: entire cell area (including tree expanders and maybe padding on the sides)
2801  * @cell_area: area normally rendered by a cell renderer
2802  * @flags: flags that affect rendering
2803  *
2804  * Renders the cell contained by #tree_column. This is used primarily by the
2805  * #GtkTreeView.
2806  **/
2807 void
2808 _gtk_tree_view_column_cell_render (GtkTreeViewColumn  *tree_column,
2809                                    cairo_t            *cr,
2810                                    const GdkRectangle *background_area,
2811                                    const GdkRectangle *cell_area,
2812                                    guint               flags,
2813                                    gboolean            draw_focus)
2814 {
2815   GtkTreeViewColumnPrivate *priv;
2816
2817   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2818   g_return_if_fail (cr != NULL);
2819   g_return_if_fail (background_area != NULL);
2820   g_return_if_fail (cell_area != NULL);
2821
2822   priv = tree_column->priv;
2823
2824   cairo_save (cr);
2825
2826   gtk_cell_area_render (priv->cell_area, priv->cell_area_context,
2827                         priv->tree_view, cr,
2828                         background_area, cell_area, flags,
2829                         draw_focus);
2830
2831   cairo_restore (cr);
2832 }
2833
2834 gboolean
2835 _gtk_tree_view_column_cell_event (GtkTreeViewColumn  *tree_column,
2836                                   GdkEvent           *event,
2837                                   const GdkRectangle *cell_area,
2838                                   guint               flags)
2839 {
2840   GtkTreeViewColumnPrivate *priv;
2841
2842   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2843
2844   priv = tree_column->priv;
2845
2846   return gtk_cell_area_event (priv->cell_area,
2847                               priv->cell_area_context,
2848                               priv->tree_view,
2849                               event,
2850                               cell_area,
2851                               flags);
2852 }
2853
2854 /**
2855  * gtk_tree_view_column_cell_is_visible:
2856  * @tree_column: A #GtkTreeViewColumn
2857  *
2858  * Returns %TRUE if any of the cells packed into the @tree_column are visible.
2859  * For this to be meaningful, you must first initialize the cells with
2860  * gtk_tree_view_column_cell_set_cell_data()
2861  *
2862  * Return value: %TRUE, if any of the cells packed into the @tree_column are currently visible
2863  **/
2864 gboolean
2865 gtk_tree_view_column_cell_is_visible (GtkTreeViewColumn *tree_column)
2866 {
2867   GList *list;
2868   GList *cells;
2869   GtkTreeViewColumnPrivate *priv;
2870
2871   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2872
2873   priv = tree_column->priv;
2874
2875   cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (priv->cell_area));
2876   for (list = cells; list; list = list->next)
2877     {
2878       if (gtk_cell_renderer_get_visible (list->data))
2879         {
2880           g_list_free (cells);
2881           return TRUE;
2882         }
2883     }
2884
2885   g_list_free (cells);
2886
2887   return FALSE;
2888 }
2889
2890 /**
2891  * gtk_tree_view_column_focus_cell:
2892  * @tree_column: A #GtkTreeViewColumn
2893  * @cell: A #GtkCellRenderer
2894  *
2895  * Sets the current keyboard focus to be at @cell, if the column contains
2896  * 2 or more editable and activatable cells.
2897  *
2898  * Since: 2.2
2899  **/
2900 void
2901 gtk_tree_view_column_focus_cell (GtkTreeViewColumn *tree_column,
2902                                  GtkCellRenderer   *cell)
2903 {
2904   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2905   g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
2906
2907   gtk_cell_area_set_focus_cell (tree_column->priv->cell_area, cell);
2908 }
2909
2910 void
2911 _gtk_tree_view_column_cell_set_dirty (GtkTreeViewColumn *tree_column,
2912                                       gboolean           install_handler)
2913 {
2914   GtkTreeViewColumnPrivate *priv = tree_column->priv;
2915
2916   priv->dirty = TRUE;
2917   priv->padding = 0;
2918   priv->width = 0;
2919
2920   /* Issue a manual reset on the context to have all
2921    * sizes re-requested for the context.
2922    */
2923   g_signal_handler_block (priv->cell_area_context,
2924                           priv->context_changed_signal);
2925   gtk_cell_area_context_reset (priv->cell_area_context);
2926   g_signal_handler_unblock (priv->cell_area_context,
2927                             priv->context_changed_signal);
2928
2929   if (priv->tree_view &&
2930       gtk_widget_get_realized (priv->tree_view))
2931     {
2932       _gtk_tree_view_install_mark_rows_col_dirty (GTK_TREE_VIEW (priv->tree_view), install_handler);
2933       gtk_widget_queue_resize (priv->tree_view);
2934     }
2935 }
2936
2937 gboolean
2938 _gtk_tree_view_column_cell_get_dirty (GtkTreeViewColumn  *tree_column)
2939 {
2940   return tree_column->priv->dirty;
2941 }
2942
2943 /**
2944  * gtk_tree_view_column_cell_get_position:
2945  * @tree_column: a #GtkTreeViewColumn
2946  * @cell_renderer: a #GtkCellRenderer
2947  * @x_offset: return location for the horizontal position of @cell within
2948  *            @tree_column, may be %NULL
2949  * @width: return location for the width of @cell, may be %NULL
2950  *
2951  * Obtains the horizontal position and size of a cell in a column. If the
2952  * cell is not found in the column, @start_pos and @width are not changed and
2953  * %FALSE is returned.
2954  *
2955  * Return value: %TRUE if @cell belongs to @tree_column.
2956  */
2957 gboolean
2958 gtk_tree_view_column_cell_get_position (GtkTreeViewColumn *tree_column,
2959                                         GtkCellRenderer   *cell_renderer,
2960                                         gint              *x_offset,
2961                                         gint              *width)
2962 {
2963   GtkTreeViewColumnPrivate *priv;
2964   GdkRectangle zero_cell_area = { 0, };
2965   GdkRectangle allocation;
2966
2967   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2968   g_return_val_if_fail (GTK_IS_CELL_RENDERER (cell_renderer), FALSE);
2969
2970   priv = tree_column->priv;
2971
2972   /* FIXME: Could use a boolean return value for invalid cells */
2973   gtk_cell_area_get_cell_allocation (priv->cell_area,
2974                                      priv->cell_area_context,
2975                                      priv->tree_view,
2976                                      cell_renderer,
2977                                      &zero_cell_area,
2978                                      &allocation);
2979
2980   if (x_offset)
2981     *x_offset = allocation.x;
2982   if (width)
2983     *width = allocation.width;
2984
2985   return TRUE;
2986 }
2987
2988 /**
2989  * gtk_tree_view_column_queue_resize:
2990  * @tree_column: A #GtkTreeViewColumn
2991  *
2992  * Flags the column, and the cell renderers added to this column, to have
2993  * their sizes renegotiated.
2994  *
2995  * Since: 2.8
2996  **/
2997 void
2998 gtk_tree_view_column_queue_resize (GtkTreeViewColumn *tree_column)
2999 {
3000   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
3001
3002   if (tree_column->priv->tree_view)
3003     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
3004 }
3005
3006 /**
3007  * gtk_tree_view_column_get_tree_view:
3008  * @tree_column: A #GtkTreeViewColumn
3009  *
3010  * Returns the #GtkTreeView wherein @tree_column has been inserted.
3011  * If @column is currently not inserted in any tree view, %NULL is
3012  * returned.
3013  *
3014  * Return value: (transfer none): The tree view wherein @column has
3015  *     been inserted if any, %NULL otherwise.
3016  *
3017  * Since: 2.12
3018  */
3019 GtkWidget *
3020 gtk_tree_view_column_get_tree_view (GtkTreeViewColumn *tree_column)
3021 {
3022   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
3023
3024   return tree_column->priv->tree_view;
3025 }
3026
3027 /**
3028  * gtk_tree_view_column_get_button:
3029  * @tree_column: A #GtkTreeViewColumn
3030  *
3031  * Returns the button used in the treeview column header
3032  *
3033  * Return value: (transfer none): The button for the column header.
3034  *
3035  * Since: 3.0
3036  */
3037 GtkWidget *
3038 gtk_tree_view_column_get_button (GtkTreeViewColumn *tree_column)
3039 {
3040   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
3041
3042   return tree_column->priv->button;
3043 }
3044
3045 GdkWindow *
3046 _gtk_tree_view_column_get_window (GtkTreeViewColumn  *column)
3047 {
3048   return column->priv->window;
3049 }
3050
3051 void
3052 _gtk_tree_view_column_push_padding (GtkTreeViewColumn  *column,
3053                                     gint                padding)
3054 {
3055   column->priv->padding = MAX (column->priv->padding, padding);
3056 }
3057
3058 gint
3059 _gtk_tree_view_column_get_requested_width (GtkTreeViewColumn  *column)
3060 {
3061   gint requested_width;
3062
3063   gtk_cell_area_context_get_preferred_width (column->priv->cell_area_context, &requested_width, NULL);
3064
3065   return requested_width + column->priv->padding;
3066 }
3067
3068
3069 void
3070 _gtk_tree_view_column_set_resized_width (GtkTreeViewColumn  *column,
3071                                          gint                width)
3072 {
3073   column->priv->resized_width = width;
3074 }
3075
3076 gint
3077 _gtk_tree_view_column_get_resized_width (GtkTreeViewColumn  *column)
3078 {
3079   return column->priv->resized_width;
3080 }
3081
3082 void
3083 _gtk_tree_view_column_set_use_resized_width (GtkTreeViewColumn  *column,
3084                                              gboolean            use_resized_width)
3085 {
3086   column->priv->use_resized_width = use_resized_width;
3087 }
3088
3089 gboolean
3090 _gtk_tree_view_column_get_use_resized_width (GtkTreeViewColumn  *column)
3091 {
3092   return column->priv->use_resized_width;
3093 }
3094
3095 gint
3096 _gtk_tree_view_column_get_drag_x (GtkTreeViewColumn  *column)
3097 {
3098   return column->priv->drag_x;
3099 }
3100
3101 GtkCellAreaContext *
3102 _gtk_tree_view_column_get_context (GtkTreeViewColumn  *column)
3103 {
3104   return column->priv->cell_area_context;
3105 }