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   guint resetting_context   : 1;
 176 };
 177
 178 enum
 179 {
 180   PROP_0,
 181   PROP_VISIBLE,
 182   PROP_RESIZABLE,
 183   PROP_WIDTH,
 184   PROP_SPACING,
 185   PROP_SIZING,
 186   PROP_FIXED_WIDTH,
 187   PROP_MIN_WIDTH,
 188   PROP_MAX_WIDTH,
 189   PROP_TITLE,
 190   PROP_EXPAND,
 191   PROP_CLICKABLE,
 192   PROP_WIDGET,
 193   PROP_ALIGNMENT,
 194   PROP_REORDERABLE,
 195   PROP_SORT_INDICATOR,
 196   PROP_SORT_ORDER,
 197   PROP_SORT_COLUMN_ID,
 198   PROP_CELL_AREA
 199 };
 200
 201 enum
 202 {
 203   CLICKED,
 204   LAST_SIGNAL
 205 };
 206
 207 static guint tree_column_signals[LAST_SIGNAL] = { 0 };
 208
 209 G_DEFINE_TYPE_WITH_CODE (GtkTreeViewColumn, gtk_tree_view_column, G_TYPE_INITIALLY_UNOWNED,
 210                          G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT,
 211                                                 gtk_tree_view_column_cell_layout_init)
 212                          G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
 213                                                 gtk_tree_view_column_buildable_init))
 214
 215
 216 static void
 217 gtk_tree_view_column_class_init (GtkTreeViewColumnClass *class)
 218 {
 219   GObjectClass *object_class;
 220
 221   object_class = (GObjectClass*) class;
 222
 223   class->clicked = NULL;
 224
 225   object_class->constructor = gtk_tree_view_column_constructor;
 226   object_class->finalize = gtk_tree_view_column_finalize;
 227   object_class->dispose = gtk_tree_view_column_dispose;
 228   object_class->set_property = gtk_tree_view_column_set_property;
 229   object_class->get_property = gtk_tree_view_column_get_property;
 230
 231   tree_column_signals[CLICKED] =
 232     g_signal_new (I_("clicked"),
 233                   G_OBJECT_CLASS_TYPE (object_class),
 234                   G_SIGNAL_RUN_LAST,
 235                   G_STRUCT_OFFSET (GtkTreeViewColumnClass, clicked),
 236                   NULL, NULL,
 237                   _gtk_marshal_VOID__VOID,
 238                   G_TYPE_NONE, 0);
 239
 240   g_object_class_install_property (object_class,
 241                                    PROP_VISIBLE,
 242                                    g_param_spec_boolean ("visible",
 243                                                         P_("Visible"),
 244                                                         P_("Whether to display the column"),
 245                                                          TRUE,
 246                                                          GTK_PARAM_READWRITE));
 247
 248   g_object_class_install_property (object_class,
 249                                    PROP_RESIZABLE,
 250                                    g_param_spec_boolean ("resizable",
 251                                                          P_("Resizable"),
 252                                                          P_("Column is user-resizable"),
 253                                                          FALSE,
 254                                                          GTK_PARAM_READWRITE));
 255
 256   g_object_class_install_property (object_class,
 257                                    PROP_WIDTH,
 258                                    g_param_spec_int ("width",
 259                                                      P_("Width"),
 260                                                      P_("Current width of the column"),
 261                                                      0,
 262                                                      G_MAXINT,
 263                                                      0,
 264                                                      GTK_PARAM_READABLE));
 265   g_object_class_install_property (object_class,
 266                                    PROP_SPACING,
 267                                    g_param_spec_int ("spacing",
 268                                                      P_("Spacing"),
 269                                                      P_("Space which is inserted between cells"),
 270                                                      0,
 271                                                      G_MAXINT,
 272                                                      0,
 273                                                      GTK_PARAM_READWRITE));
 274   g_object_class_install_property (object_class,
 275                                    PROP_SIZING,
 276                                    g_param_spec_enum ("sizing",
 277                                                       P_("Sizing"),
 278                                                       P_("Resize mode of the column"),
 279                                                       GTK_TYPE_TREE_VIEW_COLUMN_SIZING,
 280                                                       GTK_TREE_VIEW_COLUMN_GROW_ONLY,
 281                                                       GTK_PARAM_READWRITE));
 282
 283   g_object_class_install_property (object_class,
 284                                    PROP_FIXED_WIDTH,
 285                                    g_param_spec_int ("fixed-width",
 286                                                      P_("Fixed Width"),
 287                                                      P_("Current fixed width of the column"),
 288                                                      1,
 289                                                      G_MAXINT,
 290                                                      1, /* not useful */
 291                                                      GTK_PARAM_READWRITE));
 292
 293   g_object_class_install_property (object_class,
 294                                    PROP_MIN_WIDTH,
 295                                    g_param_spec_int ("min-width",
 296                                                      P_("Minimum Width"),
 297                                                      P_("Minimum allowed width of the column"),
 298                                                      -1,
 299                                                      G_MAXINT,
 300                                                      -1,
 301                                                      GTK_PARAM_READWRITE));
 302
 303   g_object_class_install_property (object_class,
 304                                    PROP_MAX_WIDTH,
 305                                    g_param_spec_int ("max-width",
 306                                                      P_("Maximum Width"),
 307                                                      P_("Maximum allowed width of the column"),
 308                                                      -1,
 309                                                      G_MAXINT,
 310                                                      -1,
 311                                                      GTK_PARAM_READWRITE));
 312
 313   g_object_class_install_property (object_class,
 314                                    PROP_TITLE,
 315                                    g_param_spec_string ("title",
 316                                                         P_("Title"),
 317                                                         P_("Title to appear in column header"),
 318                                                         "",
 319                                                         GTK_PARAM_READWRITE));
 320
 321   g_object_class_install_property (object_class,
 322                                    PROP_EXPAND,
 323                                    g_param_spec_boolean ("expand",
 324                                                          P_("Expand"),
 325                                                          P_("Column gets share of extra width allocated to the widget"),
 326                                                          FALSE,
 327                                                          GTK_PARAM_READWRITE));
 328
 329   g_object_class_install_property (object_class,
 330                                    PROP_CLICKABLE,
 331                                    g_param_spec_boolean ("clickable",
 332                                                         P_("Clickable"),
 333                                                         P_("Whether the header can be clicked"),
 334                                                          FALSE,
 335                                                          GTK_PARAM_READWRITE));
 336
 337
 338   g_object_class_install_property (object_class,
 339                                    PROP_WIDGET,
 340                                    g_param_spec_object ("widget",
 341                                                         P_("Widget"),
 342                                                         P_("Widget to put in column header button instead of column title"),
 343                                                         GTK_TYPE_WIDGET,
 344                                                         GTK_PARAM_READWRITE));
 345
 346   g_object_class_install_property (object_class,
 347                                    PROP_ALIGNMENT,
 348                                    g_param_spec_float ("alignment",
 349                                                        P_("Alignment"),
 350                                                        P_("X Alignment of the column header text or widget"),
 351                                                        0.0,
 352                                                        1.0,
 353                                                        0.0,
 354                                                        GTK_PARAM_READWRITE));
 355
 356   g_object_class_install_property (object_class,
 357                                    PROP_REORDERABLE,
 358                                    g_param_spec_boolean ("reorderable",
 359                                                          P_("Reorderable"),
 360                                                          P_("Whether the column can be reordered around the headers"),
 361                                                          FALSE,
 362                                                          GTK_PARAM_READWRITE));
 363
 364   g_object_class_install_property (object_class,
 365                                    PROP_SORT_INDICATOR,
 366                                    g_param_spec_boolean ("sort-indicator",
 367                                                         P_("Sort indicator"),
 368                                                         P_("Whether to show a sort indicator"),
 369                                                          FALSE,
 370                                                          GTK_PARAM_READWRITE));
 371
 372   g_object_class_install_property (object_class,
 373                                    PROP_SORT_ORDER,
 374                                    g_param_spec_enum ("sort-order",
 375                                                       P_("Sort order"),
 376                                                       P_("Sort direction the sort indicator should indicate"),
 377                                                       GTK_TYPE_SORT_TYPE,
 378                                                       GTK_SORT_ASCENDING,
 379                                                       GTK_PARAM_READWRITE));
 380
 381   /**
 382    * GtkTreeViewColumn:sort-column-id:
 383    *
 384    * Logical sort column ID this column sorts on when selected for sorting. Setting the sort column ID makes the column header
 385    * clickable. Set to %-1 to make the column unsortable.
 386    *
 387    * Since: 2.18
 388    **/
 389   g_object_class_install_property (object_class,
 390                                    PROP_SORT_COLUMN_ID,
 391                                    g_param_spec_int ("sort-column-id",
 392                                                      P_("Sort column ID"),
 393                                                      P_("Logical sort column ID this column sorts on when selected for sorting"),
 394                                                      -1,
 395                                                      G_MAXINT,
 396                                                      -1,
 397                                                      GTK_PARAM_READWRITE));
 398
 399   /**
 400    * GtkTreeViewColumn:cell-area:
 401    *
 402    * The #GtkCellArea used to layout cell renderers for this column.
 403    *
 404    * Since: 3.0
 405    */
 406   g_object_class_install_property (object_class,
 407                                    PROP_CELL_AREA,
 408                                    g_param_spec_object ("cell-area",
 409                                                         P_("Cell Area"),
 410                                                         P_("The GtkCellArea used to layout cells"),
 411                                                         GTK_TYPE_CELL_AREA,
 412                                                         GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
 413
 414   g_type_class_add_private (class, sizeof (GtkTreeViewColumnPrivate));
 415 }
 416
 417 static void
 418 gtk_tree_view_column_custom_tag_end (GtkBuildable *buildable,
 419                                      GtkBuilder   *builder,
 420                                      GObject      *child,
 421                                      const gchar  *tagname,
 422                                      gpointer     *data)
 423 {
 424   /* Just ignore the boolean return from here */
 425   _gtk_cell_layout_buildable_custom_tag_end (buildable, builder, child, tagname, data);
 426 }
 427
 428 static void
 429 gtk_tree_view_column_buildable_init (GtkBuildableIface *iface)
 430 {
 431   iface->add_child = _gtk_cell_layout_buildable_add_child;
 432   iface->custom_tag_start = _gtk_cell_layout_buildable_custom_tag_start;
 433   iface->custom_tag_end = gtk_tree_view_column_custom_tag_end;
 434 }
 435
 436 static void
 437 gtk_tree_view_column_cell_layout_init (GtkCellLayoutIface *iface)
 438 {
 439   iface->get_area = gtk_tree_view_column_cell_layout_get_area;
 440 }
 441
 442 static void
 443 gtk_tree_view_column_init (GtkTreeViewColumn *tree_column)
 444 {
 445   GtkTreeViewColumnPrivate *priv;
 446
 447   tree_column->priv = G_TYPE_INSTANCE_GET_PRIVATE (tree_column,
 448                                                    GTK_TYPE_TREE_VIEW_COLUMN,
 449                                                    GtkTreeViewColumnPrivate);
 450   priv = tree_column->priv;
 451
 452   priv->button = NULL;
 453   priv->xalign = 0.0;
 454   priv->width = 0;
 455   priv->padding = -1;
 456   priv->min_width = -1;
 457   priv->max_width = -1;
 458   priv->resized_width = 0;
 459   priv->column_type = GTK_TREE_VIEW_COLUMN_GROW_ONLY;
 460   priv->visible = TRUE;
 461   priv->resizable = FALSE;
 462   priv->expand = FALSE;
 463   priv->clickable = FALSE;
 464   priv->dirty = TRUE;
 465   priv->sort_order = GTK_SORT_ASCENDING;
 466   priv->show_sort_indicator = FALSE;
 467   priv->property_changed_signal = 0;
 468   priv->sort_clicked_signal = 0;
 469   priv->sort_column_changed_signal = 0;
 470   priv->sort_column_id = -1;
 471   priv->reorderable = FALSE;
 472   priv->maybe_reordered = FALSE;
 473   priv->fixed_width = 1;
 474   priv->use_resized_width = FALSE;
 475   priv->title = g_strdup ("");
 476 }
 477
 478 static GObject *
 479 gtk_tree_view_column_constructor (GType                    type,
 480                                   guint                    n_construct_properties,
 481                                   GObjectConstructParam   *construct_properties)
 482 {
 483   GtkTreeViewColumn        *tree_column;
 484   GtkTreeViewColumnPrivate *priv;
 485   GObject                  *object;
 486
 487   object = G_OBJECT_CLASS (gtk_tree_view_column_parent_class)->constructor
 488     (type, n_construct_properties, construct_properties);
 489
 490   tree_column = (GtkTreeViewColumn *) object;
 491   priv        = tree_column->priv;
 492
 493   if (!priv->cell_area)
 494     {
 495       priv->cell_area = gtk_cell_area_box_new ();
 496       g_object_ref_sink (priv->cell_area);
 497     }
 498
 499   gtk_cell_area_set_style_detail (priv->cell_area, "treeview");
 500
 501   priv->add_editable_signal =
 502     g_signal_connect (priv->cell_area, "add-editable",
 503                       G_CALLBACK (gtk_tree_view_column_add_editable_callback),
 504                       tree_column);
 505   priv->remove_editable_signal =
 506     g_signal_connect (priv->cell_area, "remove-editable",
 507                       G_CALLBACK (gtk_tree_view_column_remove_editable_callback),
 508                       tree_column);
 509
 510   priv->cell_area_context = gtk_cell_area_create_context (priv->cell_area);
 511
 512   priv->context_changed_signal =
 513     g_signal_connect (priv->cell_area_context, "notify",
 514                       G_CALLBACK (gtk_tree_view_column_context_changed), tree_column);
 515
 516   return object;
 517 }
 518
 519 static void
 520 gtk_tree_view_column_dispose (GObject *object)
 521 {
 522   GtkTreeViewColumn        *tree_column = (GtkTreeViewColumn *) object;
 523   GtkTreeViewColumnPrivate *priv        = tree_column->priv;
 524
 525   if (priv->cell_area_context)
 526     {
 527       g_signal_handler_disconnect (priv->cell_area_context,
 528                                    priv->context_changed_signal);
 529
 530       g_object_unref (priv->cell_area_context);
 531
 532       priv->cell_area_context = NULL;
 533       priv->context_changed_signal = 0;
 534     }
 535
 536   if (priv->cell_area)
 537     {
 538       g_signal_handler_disconnect (priv->cell_area,
 539                                    priv->add_editable_signal);
 540       g_signal_handler_disconnect (priv->cell_area,
 541                                    priv->remove_editable_signal);
 542
 543       g_object_unref (priv->cell_area);
 544       priv->cell_area = NULL;
 545       priv->add_editable_signal = 0;
 546       priv->remove_editable_signal = 0;
 547     }
 548
 549   if (priv->child)
 550     {
 551       g_object_unref (priv->child);
 552       priv->child = NULL;
 553     }
 554
 555   G_OBJECT_CLASS (gtk_tree_view_column_parent_class)->dispose (object);
 556 }
 557
 558 static void
 559 gtk_tree_view_column_finalize (GObject *object)
 560 {
 561   GtkTreeViewColumn        *tree_column = (GtkTreeViewColumn *) object;
 562   GtkTreeViewColumnPrivate *priv        = tree_column->priv;
 563
 564   g_free (priv->title);
 565
 566   G_OBJECT_CLASS (gtk_tree_view_column_parent_class)->finalize (object);
 567 }
 568
 569 static void
 570 gtk_tree_view_column_set_property (GObject         *object,
 571                                    guint            prop_id,
 572                                    const GValue    *value,
 573                                    GParamSpec      *pspec)
 574 {
 575   GtkTreeViewColumn *tree_column;
 576   GtkCellArea       *area;
 577
 578   tree_column = GTK_TREE_VIEW_COLUMN (object);
 579
 580   switch (prop_id)
 581     {
 582     case PROP_VISIBLE:
 583       gtk_tree_view_column_set_visible (tree_column,
 584                                         g_value_get_boolean (value));
 585       break;
 586
 587     case PROP_RESIZABLE:
 588       gtk_tree_view_column_set_resizable (tree_column,
 589                                           g_value_get_boolean (value));
 590       break;
 591
 592     case PROP_SIZING:
 593       gtk_tree_view_column_set_sizing (tree_column,
 594                                        g_value_get_enum (value));
 595       break;
 596
 597     case PROP_FIXED_WIDTH:
 598       gtk_tree_view_column_set_fixed_width (tree_column,
 599                                             g_value_get_int (value));
 600       break;
 601
 602     case PROP_MIN_WIDTH:
 603       gtk_tree_view_column_set_min_width (tree_column,
 604                                           g_value_get_int (value));
 605       break;
 606
 607     case PROP_MAX_WIDTH:
 608       gtk_tree_view_column_set_max_width (tree_column,
 609                                           g_value_get_int (value));
 610       break;
 611
 612     case PROP_SPACING:
 613       gtk_tree_view_column_set_spacing (tree_column,
 614                                         g_value_get_int (value));
 615       break;
 616
 617     case PROP_TITLE:
 618       gtk_tree_view_column_set_title (tree_column,
 619                                       g_value_get_string (value));
 620       break;
 621
 622     case PROP_EXPAND:
 623       gtk_tree_view_column_set_expand (tree_column,
 624                                        g_value_get_boolean (value));
 625       break;
 626
 627     case PROP_CLICKABLE:
 628       gtk_tree_view_column_set_clickable (tree_column,
 629                                           g_value_get_boolean (value));
 630       break;
 631
 632     case PROP_WIDGET:
 633       gtk_tree_view_column_set_widget (tree_column,
 634                                        (GtkWidget*) g_value_get_object (value));
 635       break;
 636
 637     case PROP_ALIGNMENT:
 638       gtk_tree_view_column_set_alignment (tree_column,
 639                                           g_value_get_float (value));
 640       break;
 641
 642     case PROP_REORDERABLE:
 643       gtk_tree_view_column_set_reorderable (tree_column,
 644                                             g_value_get_boolean (value));
 645       break;
 646
 647     case PROP_SORT_INDICATOR:
 648       gtk_tree_view_column_set_sort_indicator (tree_column,
 649                                                g_value_get_boolean (value));
 650       break;
 651
 652     case PROP_SORT_ORDER:
 653       gtk_tree_view_column_set_sort_order (tree_column,
 654                                            g_value_get_enum (value));
 655       break;
 656
 657     case PROP_SORT_COLUMN_ID:
 658       gtk_tree_view_column_set_sort_column_id (tree_column,
 659                                                g_value_get_int (value));
 660       break;
 661
 662     case PROP_CELL_AREA:
 663       /* Construct-only, can only be assigned once */
 664       area = g_value_get_object (value);
 665
 666       if (area)
 667         tree_column->priv->cell_area = g_object_ref_sink (area);
 668       break;
 669
 670     default:
 671       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 672       break;
 673     }
 674 }
 675
 676 static void
 677 gtk_tree_view_column_get_property (GObject         *object,
 678                                    guint            prop_id,
 679                                    GValue          *value,
 680                                    GParamSpec      *pspec)
 681 {
 682   GtkTreeViewColumn *tree_column;
 683
 684   tree_column = GTK_TREE_VIEW_COLUMN (object);
 685
 686   switch (prop_id)
 687     {
 688     case PROP_VISIBLE:
 689       g_value_set_boolean (value,
 690                            gtk_tree_view_column_get_visible (tree_column));
 691       break;
 692
 693     case PROP_RESIZABLE:
 694       g_value_set_boolean (value,
 695                            gtk_tree_view_column_get_resizable (tree_column));
 696       break;
 697
 698     case PROP_WIDTH:
 699       g_value_set_int (value,
 700                        gtk_tree_view_column_get_width (tree_column));
 701       break;
 702
 703     case PROP_SPACING:
 704       g_value_set_int (value,
 705                        gtk_tree_view_column_get_spacing (tree_column));
 706       break;
 707
 708     case PROP_SIZING:
 709       g_value_set_enum (value,
 710                         gtk_tree_view_column_get_sizing (tree_column));
 711       break;
 712
 713     case PROP_FIXED_WIDTH:
 714       g_value_set_int (value,
 715                        gtk_tree_view_column_get_fixed_width (tree_column));
 716       break;
 717
 718     case PROP_MIN_WIDTH:
 719       g_value_set_int (value,
 720                        gtk_tree_view_column_get_min_width (tree_column));
 721       break;
 722
 723     case PROP_MAX_WIDTH:
 724       g_value_set_int (value,
 725                        gtk_tree_view_column_get_max_width (tree_column));
 726       break;
 727
 728     case PROP_TITLE:
 729       g_value_set_string (value,
 730                           gtk_tree_view_column_get_title (tree_column));
 731       break;
 732
 733     case PROP_EXPAND:
 734       g_value_set_boolean (value,
 735                           gtk_tree_view_column_get_expand (tree_column));
 736       break;
 737
 738     case PROP_CLICKABLE:
 739       g_value_set_boolean (value,
 740                            gtk_tree_view_column_get_clickable (tree_column));
 741       break;
 742
 743     case PROP_WIDGET:
 744       g_value_set_object (value,
 745                           (GObject*) gtk_tree_view_column_get_widget (tree_column));
 746       break;
 747
 748     case PROP_ALIGNMENT:
 749       g_value_set_float (value,
 750                          gtk_tree_view_column_get_alignment (tree_column));
 751       break;
 752
 753     case PROP_REORDERABLE:
 754       g_value_set_boolean (value,
 755                            gtk_tree_view_column_get_reorderable (tree_column));
 756       break;
 757
 758     case PROP_SORT_INDICATOR:
 759       g_value_set_boolean (value,
 760                            gtk_tree_view_column_get_sort_indicator (tree_column));
 761       break;
 762
 763     case PROP_SORT_ORDER:
 764       g_value_set_enum (value,
 765                         gtk_tree_view_column_get_sort_order (tree_column));
 766       break;
 767
 768     case PROP_SORT_COLUMN_ID:
 769       g_value_set_int (value,
 770                        gtk_tree_view_column_get_sort_column_id (tree_column));
 771       break;
 772
 773     case PROP_CELL_AREA:
 774       g_value_set_object (value, tree_column->priv->cell_area);
 775       break;
 776
 777     default:
 778       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 779       break;
 780     }
 781 }
 782
 783 /* Implementation of GtkCellLayout interface
 784  */
 785 static GtkCellArea *
 786 gtk_tree_view_column_cell_layout_get_area (GtkCellLayout   *cell_layout)
 787 {
 788   GtkTreeViewColumn        *column = GTK_TREE_VIEW_COLUMN (cell_layout);
 789   GtkTreeViewColumnPrivate *priv   = column->priv;
 790
 791   return priv->cell_area;
 792 }
 793
 794 /* Button handling code
 795  */
 796 static void
 797 gtk_tree_view_column_create_button (GtkTreeViewColumn *tree_column)
 798 {
 799   GtkTreeViewColumnPrivate *priv = tree_column->priv;
 800   GtkTreeView *tree_view;
 801   GtkWidget *child;
 802   GtkWidget *hbox;
 803
 804   tree_view = (GtkTreeView *) priv->tree_view;
 805
 806   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
 807   g_return_if_fail (priv->button == NULL);
 808
 809   gtk_widget_push_composite_child ();
 810   priv->button = gtk_button_new ();
 811   gtk_widget_add_events (priv->button, GDK_POINTER_MOTION_MASK);
 812   gtk_widget_pop_composite_child ();
 813
 814   /* make sure we own a reference to it as well. */
 815   if (_gtk_tree_view_get_header_window (tree_view))
 816     gtk_widget_set_parent_window (priv->button, _gtk_tree_view_get_header_window (tree_view));
 817
 818   gtk_widget_set_parent (priv->button, GTK_WIDGET (tree_view));
 819
 820   g_signal_connect (priv->button, "event",
 821                     G_CALLBACK (gtk_tree_view_column_button_event),
 822                     tree_column);
 823   g_signal_connect (priv->button, "clicked",
 824                     G_CALLBACK (gtk_tree_view_column_button_clicked),
 825                     tree_column);
 826
 827   priv->alignment = gtk_alignment_new (priv->xalign, 0.5, 0.0, 0.0);
 828
 829   hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 2);
 830   priv->arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_IN);
 831
 832   if (priv->child)
 833     child = priv->child;
 834   else
 835     {
 836       child = gtk_label_new (priv->title);
 837       gtk_widget_show (child);
 838     }
 839
 840   g_signal_connect (child, "mnemonic-activate",
 841                     G_CALLBACK (gtk_tree_view_column_mnemonic_activate),
 842                     tree_column);
 843
 844   if (priv->xalign <= 0.5)
 845     gtk_box_pack_end (GTK_BOX (hbox), priv->arrow, FALSE, FALSE, 0);
 846   else
 847     gtk_box_pack_start (GTK_BOX (hbox), priv->arrow, FALSE, FALSE, 0);
 848
 849   gtk_box_pack_start (GTK_BOX (hbox), priv->alignment, TRUE, TRUE, 0);
 850
 851   gtk_container_add (GTK_CONTAINER (priv->alignment), child);
 852   gtk_container_add (GTK_CONTAINER (priv->button), hbox);
 853
 854   gtk_widget_show (hbox);
 855   gtk_widget_show (priv->alignment);
 856   gtk_tree_view_column_update_button (tree_column);
 857 }
 858
 859 static void
 860 gtk_tree_view_column_update_button (GtkTreeViewColumn *tree_column)
 861 {
 862   GtkTreeViewColumnPrivate *priv = tree_column->priv;
 863   gint sort_column_id = -1;
 864   GtkWidget *hbox;
 865   GtkWidget *alignment;
 866   GtkWidget *arrow;
 867   GtkWidget *current_child;
 868   GtkArrowType arrow_type = GTK_ARROW_NONE;
 869   GtkTreeModel *model;
 870
 871   if (priv->tree_view)
 872     model = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
 873   else
 874     model = NULL;
 875
 876   /* Create a button if necessary */
 877   if (priv->visible &&
 878       priv->button == NULL &&
 879       priv->tree_view &&
 880       gtk_widget_get_realized (priv->tree_view))
 881     gtk_tree_view_column_create_button (tree_column);
 882
 883   if (! priv->button)
 884     return;
 885
 886   hbox = gtk_bin_get_child (GTK_BIN (priv->button));
 887   alignment = priv->alignment;
 888   arrow = priv->arrow;
 889   current_child = gtk_bin_get_child (GTK_BIN (alignment));
 890
 891   /* Set up the actual button */
 892   gtk_alignment_set (GTK_ALIGNMENT (alignment), priv->xalign,
 893                      0.5, 0.0, 0.0);
 894
 895   if (priv->child)
 896     {
 897       if (current_child != priv->child)
 898         {
 899           gtk_container_remove (GTK_CONTAINER (alignment),
 900                                 current_child);
 901           gtk_container_add (GTK_CONTAINER (alignment),
 902                              priv->child);
 903         }
 904     }
 905   else
 906     {
 907       if (current_child == NULL)
 908         {
 909           current_child = gtk_label_new (NULL);
 910           gtk_widget_show (current_child);
 911           gtk_container_add (GTK_CONTAINER (alignment),
 912                              current_child);
 913         }
 914
 915       g_return_if_fail (GTK_IS_LABEL (current_child));
 916
 917       if (priv->title)
 918         gtk_label_set_text_with_mnemonic (GTK_LABEL (current_child),
 919                                           priv->title);
 920       else
 921         gtk_label_set_text_with_mnemonic (GTK_LABEL (current_child),
 922                                           "");
 923     }
 924
 925   if (GTK_IS_TREE_SORTABLE (model))
 926     gtk_tree_sortable_get_sort_column_id (GTK_TREE_SORTABLE (model),
 927                                           &sort_column_id,
 928                                           NULL);
 929
 930   if (priv->show_sort_indicator)
 931     {
 932       gboolean alternative;
 933
 934       g_object_get (gtk_widget_get_settings (priv->tree_view),
 935                     "gtk-alternative-sort-arrows", &alternative,
 936                     NULL);
 937
 938       switch (priv->sort_order)
 939         {
 940           case GTK_SORT_ASCENDING:
 941             arrow_type = alternative ? GTK_ARROW_UP : GTK_ARROW_DOWN;
 942             break;
 943
 944           case GTK_SORT_DESCENDING:
 945             arrow_type = alternative ? GTK_ARROW_DOWN : GTK_ARROW_UP;
 946             break;
 947
 948           default:
 949             g_warning (G_STRLOC": bad sort order");
 950             break;
 951         }
 952     }
 953
 954   gtk_arrow_set (GTK_ARROW (arrow),
 955                  arrow_type,
 956                  GTK_SHADOW_IN);
 957
 958   /* Put arrow on the right if the text is left-or-center justified, and on the
 959    * left otherwise; do this by packing boxes, so flipping text direction will
 960    * reverse things
 961    */
 962   g_object_ref (arrow);
 963   gtk_container_remove (GTK_CONTAINER (hbox), arrow);
 964
 965   if (priv->xalign <= 0.5)
 966     {
 967       gtk_box_pack_end (GTK_BOX (hbox), arrow, FALSE, FALSE, 0);
 968     }
 969   else
 970     {
 971       gtk_box_pack_start (GTK_BOX (hbox), arrow, FALSE, FALSE, 0);
 972       /* move it to the front */
 973       gtk_box_reorder_child (GTK_BOX (hbox), arrow, 0);
 974     }
 975   g_object_unref (arrow);
 976
 977   if (priv->show_sort_indicator
 978       || (GTK_IS_TREE_SORTABLE (model) && priv->sort_column_id >= 0))
 979     gtk_widget_show (arrow);
 980   else
 981     gtk_widget_hide (arrow);
 982
 983   /* It's always safe to hide the button.  It isn't always safe to show it, as
 984    * if you show it before it's realized, it'll get the wrong window. */
 985   if (priv->button &&
 986       priv->tree_view != NULL &&
 987       gtk_widget_get_realized (priv->tree_view))
 988     {
 989       if (priv->visible)
 990         {
 991           gtk_widget_show_now (priv->button);
 992           if (priv->window)
 993             {
 994               if (priv->resizable)
 995                 {
 996                   gdk_window_show (priv->window);
 997                   gdk_window_raise (priv->window);
 998                 }
 999               else
1000                 {
1001                   gdk_window_hide (priv->window);
1002                 }
1003             }
1004         }
1005       else
1006         {
1007           gtk_widget_hide (priv->button);
1008           if (priv->window)
1009             gdk_window_hide (priv->window);
1010         }
1011     }
1012
1013   if (priv->reorderable || priv->clickable)
1014     {
1015       gtk_widget_set_can_focus (priv->button, TRUE);
1016     }
1017   else
1018     {
1019       gtk_widget_set_can_focus (priv->button, FALSE);
1020       if (gtk_widget_has_focus (priv->button))
1021         {
1022           GtkWidget *toplevel = gtk_widget_get_toplevel (priv->tree_view);
1023           if (gtk_widget_is_toplevel (toplevel))
1024             {
1025               gtk_window_set_focus (GTK_WINDOW (toplevel), NULL);
1026             }
1027         }
1028     }
1029   /* Queue a resize on the assumption that we always want to catch all changes
1030    * and columns don't change all that often.
1031    */
1032   if (gtk_widget_get_realized (priv->tree_view))
1033      gtk_widget_queue_resize (priv->tree_view);
1034
1035 }
1036
1037 /* Button signal handlers
1038  */
1039
1040 static gint
1041 gtk_tree_view_column_button_event (GtkWidget *widget,
1042                                    GdkEvent  *event,
1043                                    gpointer   data)
1044 {
1045   GtkTreeViewColumn        *column = (GtkTreeViewColumn *) data;
1046   GtkTreeViewColumnPrivate *priv   = column->priv;
1047
1048   g_return_val_if_fail (event != NULL, FALSE);
1049
1050   if (event->type == GDK_BUTTON_PRESS &&
1051       priv->reorderable &&
1052       ((GdkEventButton *)event)->button == 1)
1053     {
1054       priv->maybe_reordered = TRUE;
1055       gdk_window_get_pointer (gtk_button_get_event_window (GTK_BUTTON (widget)),
1056                               &priv->drag_x,
1057                               &priv->drag_y,
1058                               NULL);
1059       gtk_widget_grab_focus (widget);
1060     }
1061
1062   if (event->type == GDK_BUTTON_RELEASE ||
1063       event->type == GDK_LEAVE_NOTIFY)
1064     priv->maybe_reordered = FALSE;
1065
1066   if (event->type == GDK_MOTION_NOTIFY &&
1067       priv->maybe_reordered &&
1068       (gtk_drag_check_threshold (widget,
1069                                  priv->drag_x,
1070                                  priv->drag_y,
1071                                  (gint) ((GdkEventMotion *)event)->x,
1072                                  (gint) ((GdkEventMotion *)event)->y)))
1073     {
1074       priv->maybe_reordered = FALSE;
1075       _gtk_tree_view_column_start_drag (GTK_TREE_VIEW (priv->tree_view), column,
1076                                         event->motion.device);
1077       return TRUE;
1078     }
1079
1080   if (priv->clickable == FALSE)
1081     {
1082       switch (event->type)
1083         {
1084         case GDK_BUTTON_PRESS:
1085         case GDK_2BUTTON_PRESS:
1086         case GDK_3BUTTON_PRESS:
1087         case GDK_MOTION_NOTIFY:
1088         case GDK_BUTTON_RELEASE:
1089         case GDK_ENTER_NOTIFY:
1090         case GDK_LEAVE_NOTIFY:
1091           return TRUE;
1092         default:
1093           return FALSE;
1094         }
1095     }
1096   return FALSE;
1097 }
1098
1099
1100 static void
1101 gtk_tree_view_column_button_clicked (GtkWidget *widget, gpointer data)
1102 {
1103   g_signal_emit_by_name (data, "clicked");
1104 }
1105
1106 static gboolean
1107 gtk_tree_view_column_mnemonic_activate (GtkWidget *widget,
1108                                         gboolean   group_cycling,
1109                                         gpointer   data)
1110 {
1111   GtkTreeViewColumn        *column = (GtkTreeViewColumn *)data;
1112   GtkTreeViewColumnPrivate *priv   = column->priv;
1113
1114   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), FALSE);
1115
1116   _gtk_tree_view_set_focus_column (GTK_TREE_VIEW (priv->tree_view), column);
1117
1118   if (priv->clickable)
1119     gtk_button_clicked (GTK_BUTTON (priv->button));
1120   else if (gtk_widget_get_can_focus (priv->button))
1121     gtk_widget_grab_focus (priv->button);
1122   else
1123     gtk_widget_grab_focus (priv->tree_view);
1124
1125   return TRUE;
1126 }
1127
1128 static void
1129 gtk_tree_view_model_sort_column_changed (GtkTreeSortable   *sortable,
1130                                          GtkTreeViewColumn *column)
1131 {
1132   GtkTreeViewColumnPrivate *priv = column->priv;
1133   gint sort_column_id;
1134   GtkSortType order;
1135
1136   if (gtk_tree_sortable_get_sort_column_id (sortable,
1137                                             &sort_column_id,
1138                                             &order))
1139     {
1140       if (sort_column_id == priv->sort_column_id)
1141         {
1142           gtk_tree_view_column_set_sort_indicator (column, TRUE);
1143           gtk_tree_view_column_set_sort_order (column, order);
1144         }
1145       else
1146         {
1147           gtk_tree_view_column_set_sort_indicator (column, FALSE);
1148         }
1149     }
1150   else
1151     {
1152       gtk_tree_view_column_set_sort_indicator (column, FALSE);
1153     }
1154 }
1155
1156 static void
1157 gtk_tree_view_column_sort (GtkTreeViewColumn *tree_column,
1158                            gpointer           data)
1159 {
1160   GtkTreeViewColumnPrivate *priv = tree_column->priv;
1161   GtkTreeModel *model;
1162   GtkTreeSortable *sortable;
1163   gint sort_column_id;
1164   GtkSortType order;
1165   gboolean has_sort_column;
1166   gboolean has_default_sort_func;
1167
1168   g_return_if_fail (priv->tree_view != NULL);
1169
1170   model    = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
1171   sortable = GTK_TREE_SORTABLE (model);
1172
1173   has_sort_column =
1174     gtk_tree_sortable_get_sort_column_id (sortable,
1175                                           &sort_column_id,
1176                                           &order);
1177   has_default_sort_func =
1178     gtk_tree_sortable_has_default_sort_func (sortable);
1179
1180   if (has_sort_column &&
1181       sort_column_id == priv->sort_column_id)
1182     {
1183       if (order == GTK_SORT_ASCENDING)
1184         gtk_tree_sortable_set_sort_column_id (sortable,
1185                                               priv->sort_column_id,
1186                                               GTK_SORT_DESCENDING);
1187       else if (order == GTK_SORT_DESCENDING && has_default_sort_func)
1188         gtk_tree_sortable_set_sort_column_id (sortable,
1189                                               GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID,
1190                                               GTK_SORT_ASCENDING);
1191       else
1192         gtk_tree_sortable_set_sort_column_id (sortable,
1193                                               priv->sort_column_id,
1194                                               GTK_SORT_ASCENDING);
1195     }
1196   else
1197     {
1198       gtk_tree_sortable_set_sort_column_id (sortable,
1199                                             priv->sort_column_id,
1200                                             GTK_SORT_ASCENDING);
1201     }
1202 }
1203
1204 static void
1205 gtk_tree_view_column_setup_sort_column_id_callback (GtkTreeViewColumn *tree_column)
1206 {
1207   GtkTreeViewColumnPrivate *priv = tree_column->priv;
1208   GtkTreeModel *model;
1209
1210   if (priv->tree_view == NULL)
1211     return;
1212
1213   model = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
1214
1215   if (model == NULL)
1216     return;
1217
1218   if (GTK_IS_TREE_SORTABLE (model) &&
1219       priv->sort_column_id != -1)
1220     {
1221       gint real_sort_column_id;
1222       GtkSortType real_order;
1223
1224       if (priv->sort_column_changed_signal == 0)
1225         priv->sort_column_changed_signal =
1226           g_signal_connect (model, "sort-column-changed",
1227                             G_CALLBACK (gtk_tree_view_model_sort_column_changed),
1228                             tree_column);
1229
1230       if (gtk_tree_sortable_get_sort_column_id (GTK_TREE_SORTABLE (model),
1231                                                 &real_sort_column_id,
1232                                                 &real_order) &&
1233           (real_sort_column_id == priv->sort_column_id))
1234         {
1235           gtk_tree_view_column_set_sort_indicator (tree_column, TRUE);
1236           gtk_tree_view_column_set_sort_order (tree_column, real_order);
1237         }
1238       else
1239         {
1240           gtk_tree_view_column_set_sort_indicator (tree_column, FALSE);
1241         }
1242    }
1243 }
1244
1245 static void
1246 gtk_tree_view_column_context_changed  (GtkCellAreaContext      *context,
1247                                        GParamSpec              *pspec,
1248                                        GtkTreeViewColumn       *tree_column)
1249 {
1250   /* Here we want the column re-requested if the underlying context was
1251    * actually reset for any reason, this can happen if the underlying
1252    * area/cell configuration changes (i.e. cell packing properties
1253    * or cell spacing and the like)
1254    *
1255    * Note that we block this handler while requesting for sizes
1256    * so there is no need to check for the new context size being -1,
1257    * we also block the handler when explicitly resetting the context
1258    * so as to avoid some infinite stack recursion.
1259    */
1260   if (!strcmp (pspec->name, "minimum-width") ||
1261       !strcmp (pspec->name, "natural-width") ||
1262       !strcmp (pspec->name, "minimum-height") ||
1263       !strcmp (pspec->name, "natural-height"))
1264     {
1265       tree_column->priv->resetting_context = TRUE;
1266       _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
1267       tree_column->priv->resetting_context = FALSE;
1268     }
1269 }
1270
1271 static void
1272 gtk_tree_view_column_add_editable_callback (GtkCellArea       *area,
1273                                             GtkCellRenderer   *renderer,
1274                                             GtkCellEditable   *edit_widget,
1275                                             GdkRectangle      *cell_area,
1276                                             const gchar       *path_string,
1277                                             gpointer           user_data)
1278 {
1279   GtkTreeViewColumn        *column = user_data;
1280   GtkTreeViewColumnPrivate *priv   = column->priv;
1281   GtkTreePath              *path;
1282
1283   if (priv->tree_view)
1284     {
1285       path = gtk_tree_path_new_from_string (path_string);
1286
1287       _gtk_tree_view_add_editable (GTK_TREE_VIEW (priv->tree_view),
1288                                    column,
1289                                    path,
1290                                    edit_widget,
1291                                    cell_area);
1292
1293       gtk_tree_path_free (path);
1294     }
1295 }
1296
1297 static void
1298 gtk_tree_view_column_remove_editable_callback (GtkCellArea     *area,
1299                                                GtkCellRenderer *renderer,
1300                                                GtkCellEditable *edit_widget,
1301                                                gpointer         user_data)
1302 {
1303   GtkTreeViewColumn        *column = user_data;
1304   GtkTreeViewColumnPrivate *priv   = column->priv;
1305
1306   if (priv->tree_view)
1307     _gtk_tree_view_remove_editable (GTK_TREE_VIEW (priv->tree_view),
1308                                     column,
1309                                     edit_widget);
1310 }
1311
1312 /* Exported Private Functions.
1313  * These should only be called by gtktreeview.c or gtktreeviewcolumn.c
1314  */
1315 void
1316 _gtk_tree_view_column_realize_button (GtkTreeViewColumn *column)
1317 {
1318   GtkTreeViewColumnPrivate *priv = column->priv;
1319   GtkAllocation allocation;
1320   GtkTreeView *tree_view;
1321   GdkWindowAttr attr;
1322   guint attributes_mask;
1323   gboolean rtl;
1324
1325   tree_view = (GtkTreeView *)priv->tree_view;
1326   rtl       = (gtk_widget_get_direction (priv->tree_view) == GTK_TEXT_DIR_RTL);
1327
1328   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
1329   g_return_if_fail (gtk_widget_get_realized (priv->tree_view));
1330   g_return_if_fail (priv->button != NULL);
1331
1332   g_return_if_fail (_gtk_tree_view_get_header_window (tree_view) != NULL);
1333   gtk_widget_set_parent_window (priv->button, _gtk_tree_view_get_header_window (tree_view));
1334
1335   if (priv->visible)
1336     gtk_widget_show (priv->button);
1337
1338   attr.window_type = GDK_WINDOW_CHILD;
1339   attr.wclass = GDK_INPUT_ONLY;
1340   attr.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
1341   attr.event_mask = gtk_widget_get_events (GTK_WIDGET (tree_view)) |
1342                     (GDK_BUTTON_PRESS_MASK |
1343                      GDK_BUTTON_RELEASE_MASK |
1344                      GDK_POINTER_MOTION_MASK |
1345                      GDK_POINTER_MOTION_HINT_MASK |
1346                      GDK_KEY_PRESS_MASK);
1347   attributes_mask = GDK_WA_CURSOR | GDK_WA_X | GDK_WA_Y;
1348   attr.cursor = gdk_cursor_new_for_display
1349     (gdk_window_get_display (_gtk_tree_view_get_header_window (tree_view)), GDK_SB_H_DOUBLE_ARROW);
1350   attr.y = 0;
1351   attr.width = TREE_VIEW_DRAG_WIDTH;
1352   attr.height = _gtk_tree_view_get_header_height (tree_view);
1353
1354   gtk_widget_get_allocation (priv->button, &allocation);
1355   attr.x       = (allocation.x + (rtl ? 0 : allocation.width)) - TREE_VIEW_DRAG_WIDTH / 2;
1356   priv->window = gdk_window_new (_gtk_tree_view_get_header_window (tree_view),
1357                                  &attr, attributes_mask);
1358   gdk_window_set_user_data (priv->window, tree_view);
1359
1360   gtk_tree_view_column_update_button (column);
1361
1362   gdk_cursor_unref (attr.cursor);
1363 }
1364
1365 void
1366 _gtk_tree_view_column_unrealize_button (GtkTreeViewColumn *column)
1367 {
1368   GtkTreeViewColumnPrivate *priv;
1369
1370   g_return_if_fail (column != NULL);
1371
1372   priv = column->priv;
1373   g_return_if_fail (priv->window != NULL);
1374
1375   gdk_window_set_user_data (priv->window, NULL);
1376   gdk_window_destroy (priv->window);
1377   priv->window = NULL;
1378 }
1379
1380 void
1381 _gtk_tree_view_column_unset_model (GtkTreeViewColumn *column,
1382                                    GtkTreeModel      *old_model)
1383 {
1384   GtkTreeViewColumnPrivate *priv = column->priv;
1385
1386   if (priv->sort_column_changed_signal)
1387     {
1388       g_signal_handler_disconnect (old_model,
1389                                    priv->sort_column_changed_signal);
1390       priv->sort_column_changed_signal = 0;
1391     }
1392   gtk_tree_view_column_set_sort_indicator (column, FALSE);
1393 }
1394
1395 void
1396 _gtk_tree_view_column_set_tree_view (GtkTreeViewColumn *column,
1397                                      GtkTreeView       *tree_view)
1398 {
1399   GtkTreeViewColumnPrivate *priv = column->priv;
1400
1401   g_assert (priv->tree_view == NULL);
1402
1403   priv->tree_view = GTK_WIDGET (tree_view);
1404   gtk_tree_view_column_create_button (column);
1405
1406   priv->property_changed_signal =
1407     g_signal_connect_swapped (tree_view,
1408                               "notify::model",
1409                               G_CALLBACK (gtk_tree_view_column_setup_sort_column_id_callback),
1410                               column);
1411
1412   gtk_tree_view_column_setup_sort_column_id_callback (column);
1413 }
1414
1415 void
1416 _gtk_tree_view_column_unset_tree_view (GtkTreeViewColumn *column)
1417 {
1418   GtkTreeViewColumnPrivate *priv = column->priv;
1419
1420   if (priv->tree_view && priv->button)
1421     {
1422       gtk_container_remove (GTK_CONTAINER (priv->tree_view), priv->button);
1423     }
1424   if (priv->property_changed_signal)
1425     {
1426       g_signal_handler_disconnect (priv->tree_view, priv->property_changed_signal);
1427       priv->property_changed_signal = 0;
1428     }
1429
1430   if (priv->sort_column_changed_signal)
1431     {
1432       g_signal_handler_disconnect (gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view)),
1433                                    priv->sort_column_changed_signal);
1434       priv->sort_column_changed_signal = 0;
1435     }
1436
1437   priv->tree_view = NULL;
1438   priv->button = NULL;
1439 }
1440
1441 gboolean
1442 _gtk_tree_view_column_has_editable_cell (GtkTreeViewColumn *column)
1443 {
1444   GtkTreeViewColumnPrivate *priv = column->priv;
1445   gboolean ret = FALSE;
1446   GList *list, *cells;
1447
1448   cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (priv->cell_area));
1449
1450   for (list = cells; list; list = list->next)
1451     {
1452       GtkCellRenderer *cell = list->data;
1453       GtkCellRendererMode mode;
1454
1455       g_object_get (cell, "mode", &mode, NULL);
1456
1457       if (mode == GTK_CELL_RENDERER_MODE_EDITABLE)
1458         {
1459           ret = TRUE;
1460           break;
1461         }
1462     }
1463
1464   g_list_free (cells);
1465
1466   return ret;
1467 }
1468
1469 /* gets cell being edited */
1470 GtkCellRenderer *
1471 _gtk_tree_view_column_get_edited_cell (GtkTreeViewColumn *column)
1472 {
1473   GtkTreeViewColumnPrivate *priv = column->priv;
1474
1475   return gtk_cell_area_get_edited_cell (priv->cell_area);
1476 }
1477
1478 GtkCellRenderer *
1479 _gtk_tree_view_column_get_cell_at_pos (GtkTreeViewColumn *column,
1480                                        gint               x)
1481 {
1482   GList *list;
1483   GList *cell;
1484   GtkCellRenderer *match = NULL;
1485   GtkTreeViewColumnPrivate *priv = column->priv;
1486
1487   list = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (column));
1488   for (cell = list; cell; cell = cell->next)
1489     {
1490       GdkRectangle zero_cell_area = { 0, };
1491       GdkRectangle allocation;
1492
1493       gtk_cell_area_get_cell_allocation (priv->cell_area,
1494                                          priv->cell_area_context,
1495                                          priv->tree_view,
1496                                          cell->data,
1497                                          &zero_cell_area,
1498                                          &allocation);
1499
1500       if (allocation.x <= x && x <= allocation.x + allocation.width)
1501         {
1502           match = cell->data;
1503           break;
1504         }
1505     }
1506
1507   g_list_free (list);
1508
1509   return match;
1510 }
1511
1512 /* Public Functions */
1513
1514
1515 /**
1516  * gtk_tree_view_column_new:
1517  *
1518  * Creates a new #GtkTreeViewColumn.
1519  *
1520  * Return value: A newly created #GtkTreeViewColumn.
1521  **/
1522 GtkTreeViewColumn *
1523 gtk_tree_view_column_new (void)
1524 {
1525   GtkTreeViewColumn *tree_column;
1526
1527   tree_column = g_object_new (GTK_TYPE_TREE_VIEW_COLUMN, NULL);
1528
1529   return tree_column;
1530 }
1531
1532 /**
1533  * gtk_tree_view_column_new_with_area:
1534  * @area: the #GtkCellArea that the newly created column should use to layout cells.
1535  *
1536  * Creates a new #GtkTreeViewColumn using @area to render it's cells.
1537  *
1538  * Return value: A newly created #GtkTreeViewColumn.
1539  *
1540  * Since: 3.0
1541  */
1542 GtkTreeViewColumn *
1543 gtk_tree_view_column_new_with_area (GtkCellArea *area)
1544 {
1545   GtkTreeViewColumn *tree_column;
1546
1547   tree_column = g_object_new (GTK_TYPE_TREE_VIEW_COLUMN, "cell-area", area, NULL);
1548
1549   return tree_column;
1550 }
1551
1552
1553 /**
1554  * gtk_tree_view_column_new_with_attributes:
1555  * @title: The title to set the header to.
1556  * @cell: The #GtkCellRenderer.
1557  * @Varargs: A %NULL-terminated list of attributes.
1558  *
1559  * Creates a new #GtkTreeViewColumn with a number of default values.  This is
1560  * equivalent to calling gtk_tree_view_column_set_title(),
1561  * gtk_tree_view_column_pack_start(), and
1562  * gtk_tree_view_column_set_attributes() on the newly created #GtkTreeViewColumn.
1563  *
1564  * Here's a simple example:
1565  * |[
1566  *  enum { TEXT_COLUMN, COLOR_COLUMN, N_COLUMNS };
1567  *  ...
1568  *  {
1569  *    GtkTreeViewColumn *column;
1570  *    GtkCellRenderer   *renderer = gtk_cell_renderer_text_new ();
1571  *
1572  *    column = gtk_tree_view_column_new_with_attributes ("Title",
1573  *                                                       renderer,
1574  *                                                       "text", TEXT_COLUMN,
1575  *                                                       "foreground", COLOR_COLUMN,
1576  *                                                       NULL);
1577  *  }
1578  * ]|
1579  *
1580  * Return value: A newly created #GtkTreeViewColumn.
1581  **/
1582 GtkTreeViewColumn *
1583 gtk_tree_view_column_new_with_attributes (const gchar     *title,
1584                                           GtkCellRenderer *cell,
1585                                           ...)
1586 {
1587   GtkTreeViewColumn *retval;
1588   va_list args;
1589
1590   retval = gtk_tree_view_column_new ();
1591
1592   gtk_tree_view_column_set_title (retval, title);
1593   gtk_tree_view_column_pack_start (retval, cell, TRUE);
1594
1595   va_start (args, cell);
1596   gtk_tree_view_column_set_attributesv (retval, cell, args);
1597   va_end (args);
1598
1599   return retval;
1600 }
1601
1602 /**
1603  * gtk_tree_view_column_pack_start:
1604  * @tree_column: A #GtkTreeViewColumn.
1605  * @cell: The #GtkCellRenderer.
1606  * @expand: %TRUE if @cell is to be given extra space allocated to @tree_column.
1607  *
1608  * Packs the @cell into the beginning of the column. If @expand is %FALSE, then
1609  * the @cell is allocated no more space than it needs. Any unused space is divided
1610  * evenly between cells for which @expand is %TRUE.
1611  **/
1612 void
1613 gtk_tree_view_column_pack_start (GtkTreeViewColumn *tree_column,
1614                                  GtkCellRenderer   *cell,
1615                                  gboolean           expand)
1616 {
1617   gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (tree_column), cell, expand);
1618 }
1619
1620 /**
1621  * gtk_tree_view_column_pack_end:
1622  * @tree_column: A #GtkTreeViewColumn.
1623  * @cell: The #GtkCellRenderer.
1624  * @expand: %TRUE if @cell is to be given extra space allocated to @tree_column.
1625  *
1626  * Adds the @cell to end of the column. If @expand is %FALSE, then the @cell
1627  * is allocated no more space than it needs. Any unused space is divided
1628  * evenly between cells for which @expand is %TRUE.
1629  **/
1630 void
1631 gtk_tree_view_column_pack_end (GtkTreeViewColumn  *tree_column,
1632                                GtkCellRenderer    *cell,
1633                                gboolean            expand)
1634 {
1635   gtk_cell_layout_pack_end (GTK_CELL_LAYOUT (tree_column), cell, expand);
1636 }
1637
1638 /**
1639  * gtk_tree_view_column_clear:
1640  * @tree_column: A #GtkTreeViewColumn
1641  *
1642  * Unsets all the mappings on all renderers on the @tree_column.
1643  **/
1644 void
1645 gtk_tree_view_column_clear (GtkTreeViewColumn *tree_column)
1646 {
1647   gtk_cell_layout_clear (GTK_CELL_LAYOUT (tree_column));
1648 }
1649
1650 /**
1651  * gtk_tree_view_column_add_attribute:
1652  * @tree_column: A #GtkTreeViewColumn.
1653  * @cell_renderer: the #GtkCellRenderer to set attributes on
1654  * @attribute: An attribute on the renderer
1655  * @column: The column position on the model to get the attribute from.
1656  *
1657  * Adds an attribute mapping to the list in @tree_column.  The @column is the
1658  * column of the model to get a value from, and the @attribute is the
1659  * parameter on @cell_renderer to be set from the value. So for example
1660  * if column 2 of the model contains strings, you could have the
1661  * "text" attribute of a #GtkCellRendererText get its values from
1662  * column 2.
1663  **/
1664 void
1665 gtk_tree_view_column_add_attribute (GtkTreeViewColumn *tree_column,
1666                                     GtkCellRenderer   *cell_renderer,
1667                                     const gchar       *attribute,
1668                                     gint               column)
1669 {
1670   gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (tree_column),
1671                                  cell_renderer, attribute, column);
1672 }
1673
1674 static void
1675 gtk_tree_view_column_set_attributesv (GtkTreeViewColumn *tree_column,
1676                                       GtkCellRenderer   *cell_renderer,
1677                                       va_list            args)
1678 {
1679   GtkTreeViewColumnPrivate *priv = tree_column->priv;
1680   gchar *attribute;
1681   gint column;
1682
1683   attribute = va_arg (args, gchar *);
1684
1685   gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (priv->cell_area),
1686                                     cell_renderer);
1687
1688   while (attribute != NULL)
1689     {
1690       column = va_arg (args, gint);
1691       gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (priv->cell_area),
1692                                      cell_renderer, attribute, column);
1693       attribute = va_arg (args, gchar *);
1694     }
1695 }
1696
1697 /**
1698  * gtk_tree_view_column_set_attributes:
1699  * @tree_column: A #GtkTreeViewColumn.
1700  * @cell_renderer: the #GtkCellRenderer we're setting the attributes of
1701  * @Varargs: A %NULL-terminated list of attributes.
1702  *
1703  * Sets the attributes in the list as the attributes of @tree_column.
1704  * The attributes should be in attribute/column order, as in
1705  * gtk_tree_view_column_add_attribute(). All existing attributes
1706  * are removed, and replaced with the new attributes.
1707  **/
1708 void
1709 gtk_tree_view_column_set_attributes (GtkTreeViewColumn *tree_column,
1710                                      GtkCellRenderer   *cell_renderer,
1711                                      ...)
1712 {
1713   va_list args;
1714
1715   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1716   g_return_if_fail (GTK_IS_CELL_RENDERER (cell_renderer));
1717
1718   va_start (args, cell_renderer);
1719   gtk_tree_view_column_set_attributesv (tree_column, cell_renderer, args);
1720   va_end (args);
1721 }
1722
1723
1724 /**
1725  * gtk_tree_view_column_set_cell_data_func:
1726  * @tree_column: A #GtkTreeViewColumn
1727  * @cell_renderer: A #GtkCellRenderer
1728  * @func: The #GtkTreeViewColumnFunc to use.
1729  * @func_data: The user data for @func.
1730  * @destroy: The destroy notification for @func_data
1731  *
1732  * Sets the #GtkTreeViewColumnFunc to use for the column.  This
1733  * function is used instead of the standard attributes mapping for
1734  * setting the column value, and should set the value of @tree_column's
1735  * cell renderer as appropriate.  @func may be %NULL to remove an
1736  * older one.
1737  **/
1738 void
1739 gtk_tree_view_column_set_cell_data_func (GtkTreeViewColumn   *tree_column,
1740                                          GtkCellRenderer     *cell_renderer,
1741                                          GtkTreeCellDataFunc  func,
1742                                          gpointer             func_data,
1743                                          GDestroyNotify       destroy)
1744 {
1745   gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (tree_column),
1746                                       cell_renderer,
1747                                       (GtkCellLayoutDataFunc)func,
1748                                       func_data, destroy);
1749 }
1750
1751
1752 /**
1753  * gtk_tree_view_column_clear_attributes:
1754  * @tree_column: a #GtkTreeViewColumn
1755  * @cell_renderer: a #GtkCellRenderer to clear the attribute mapping on.
1756  *
1757  * Clears all existing attributes previously set with
1758  * gtk_tree_view_column_set_attributes().
1759  **/
1760 void
1761 gtk_tree_view_column_clear_attributes (GtkTreeViewColumn *tree_column,
1762                                        GtkCellRenderer   *cell_renderer)
1763 {
1764   gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (tree_column),
1765                                     cell_renderer);
1766 }
1767
1768 /**
1769  * gtk_tree_view_column_set_spacing:
1770  * @tree_column: A #GtkTreeViewColumn.
1771  * @spacing: distance between cell renderers in pixels.
1772  *
1773  * Sets the spacing field of @tree_column, which is the number of pixels to
1774  * place between cell renderers packed into it.
1775  **/
1776 void
1777 gtk_tree_view_column_set_spacing (GtkTreeViewColumn *tree_column,
1778                                   gint               spacing)
1779 {
1780   GtkTreeViewColumnPrivate *priv;
1781
1782   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1783   g_return_if_fail (spacing >= 0);
1784
1785   priv = tree_column->priv;
1786
1787   gtk_cell_area_box_set_spacing (GTK_CELL_AREA_BOX (priv->cell_area),
1788                                  spacing);
1789   if (priv->tree_view)
1790     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
1791 }
1792
1793 /**
1794  * gtk_tree_view_column_get_spacing:
1795  * @tree_column: A #GtkTreeViewColumn.
1796  *
1797  * Returns the spacing of @tree_column.
1798  *
1799  * Return value: the spacing of @tree_column.
1800  **/
1801 gint
1802 gtk_tree_view_column_get_spacing (GtkTreeViewColumn *tree_column)
1803 {
1804   GtkTreeViewColumnPrivate *priv;
1805
1806   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
1807
1808   priv = tree_column->priv;
1809
1810   return gtk_cell_area_box_get_spacing (GTK_CELL_AREA_BOX (priv->cell_area));
1811 }
1812
1813 /* Options for manipulating the columns */
1814
1815 /**
1816  * gtk_tree_view_column_set_visible:
1817  * @tree_column: A #GtkTreeViewColumn.
1818  * @visible: %TRUE if the @tree_column is visible.
1819  *
1820  * Sets the visibility of @tree_column.
1821  **/
1822 void
1823 gtk_tree_view_column_set_visible (GtkTreeViewColumn *tree_column,
1824                                   gboolean           visible)
1825 {
1826   GtkTreeViewColumnPrivate *priv;
1827
1828   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1829
1830   priv    = tree_column->priv;
1831   visible = !! visible;
1832
1833   if (priv->visible == visible)
1834     return;
1835
1836   priv->visible = visible;
1837
1838   if (priv->visible)
1839     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
1840
1841   gtk_tree_view_column_update_button (tree_column);
1842   g_object_notify (G_OBJECT (tree_column), "visible");
1843 }
1844
1845 /**
1846  * gtk_tree_view_column_get_visible:
1847  * @tree_column: A #GtkTreeViewColumn.
1848  *
1849  * Returns %TRUE if @tree_column is visible.
1850  *
1851  * Return value: whether the column is visible or not.  If it is visible, then
1852  * the tree will show the column.
1853  **/
1854 gboolean
1855 gtk_tree_view_column_get_visible (GtkTreeViewColumn *tree_column)
1856 {
1857   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
1858
1859   return tree_column->priv->visible;
1860 }
1861
1862 /**
1863  * gtk_tree_view_column_set_resizable:
1864  * @tree_column: A #GtkTreeViewColumn
1865  * @resizable: %TRUE, if the column can be resized
1866  *
1867  * If @resizable is %TRUE, then the user can explicitly resize the column by
1868  * grabbing the outer edge of the column button.  If resizable is %TRUE and
1869  * sizing mode of the column is #GTK_TREE_VIEW_COLUMN_AUTOSIZE, then the sizing
1870  * mode is changed to #GTK_TREE_VIEW_COLUMN_GROW_ONLY.
1871  **/
1872 void
1873 gtk_tree_view_column_set_resizable (GtkTreeViewColumn *tree_column,
1874                                     gboolean           resizable)
1875 {
1876   GtkTreeViewColumnPrivate *priv;
1877
1878   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1879
1880   priv      = tree_column->priv;
1881   resizable = !! resizable;
1882
1883   if (priv->resizable == resizable)
1884     return;
1885
1886   priv->resizable = resizable;
1887
1888   if (resizable && priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
1889     gtk_tree_view_column_set_sizing (tree_column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
1890
1891   gtk_tree_view_column_update_button (tree_column);
1892
1893   g_object_notify (G_OBJECT (tree_column), "resizable");
1894 }
1895
1896 /**
1897  * gtk_tree_view_column_get_resizable:
1898  * @tree_column: A #GtkTreeViewColumn
1899  *
1900  * Returns %TRUE if the @tree_column can be resized by the end user.
1901  *
1902  * Return value: %TRUE, if the @tree_column can be resized.
1903  **/
1904 gboolean
1905 gtk_tree_view_column_get_resizable (GtkTreeViewColumn *tree_column)
1906 {
1907   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
1908
1909   return tree_column->priv->resizable;
1910 }
1911
1912
1913 /**
1914  * gtk_tree_view_column_set_sizing:
1915  * @tree_column: A #GtkTreeViewColumn.
1916  * @type: The #GtkTreeViewColumnSizing.
1917  *
1918  * Sets the growth behavior of @tree_column to @type.
1919  **/
1920 void
1921 gtk_tree_view_column_set_sizing (GtkTreeViewColumn       *tree_column,
1922                                  GtkTreeViewColumnSizing  type)
1923 {
1924   GtkTreeViewColumnPrivate *priv;
1925
1926   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1927
1928   priv      = tree_column->priv;
1929
1930   if (type == priv->column_type)
1931     return;
1932
1933   if (type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
1934     gtk_tree_view_column_set_resizable (tree_column, FALSE);
1935
1936   priv->column_type = type;
1937
1938   gtk_tree_view_column_update_button (tree_column);
1939
1940   g_object_notify (G_OBJECT (tree_column), "sizing");
1941 }
1942
1943 /**
1944  * gtk_tree_view_column_get_sizing:
1945  * @tree_column: A #GtkTreeViewColumn.
1946  *
1947  * Returns the current type of @tree_column.
1948  *
1949  * Return value: The type of @tree_column.
1950  **/
1951 GtkTreeViewColumnSizing
1952 gtk_tree_view_column_get_sizing (GtkTreeViewColumn *tree_column)
1953 {
1954   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
1955
1956   return tree_column->priv->column_type;
1957 }
1958
1959 /**
1960  * gtk_tree_view_column_get_width:
1961  * @tree_column: A #GtkTreeViewColumn.
1962  *
1963  * Returns the current size of @tree_column in pixels.
1964  *
1965  * Return value: The current width of @tree_column.
1966  **/
1967 gint
1968 gtk_tree_view_column_get_width (GtkTreeViewColumn *tree_column)
1969 {
1970   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
1971
1972   return tree_column->priv->width;
1973 }
1974
1975 gint
1976 _gtk_tree_view_column_request_width (GtkTreeViewColumn *tree_column)
1977 {
1978   GtkTreeViewColumnPrivate *priv;
1979   gint real_requested_width;
1980
1981   priv = tree_column->priv;
1982
1983   if (priv->use_resized_width)
1984     {
1985       real_requested_width = priv->resized_width;
1986     }
1987   else if (priv->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
1988     {
1989       real_requested_width = priv->fixed_width;
1990     }
1991   else if (gtk_tree_view_get_headers_visible (GTK_TREE_VIEW (priv->tree_view)))
1992     {
1993       gint button_request;
1994       gint requested_width;
1995
1996       gtk_cell_area_context_get_preferred_width (priv->cell_area_context, &requested_width, NULL);
1997       requested_width += priv->padding;
1998
1999       gtk_widget_get_preferred_width (priv->button, &button_request, NULL);
2000       real_requested_width = MAX (requested_width, button_request);
2001     }
2002   else
2003     {
2004       gint requested_width;
2005
2006       gtk_cell_area_context_get_preferred_width (priv->cell_area_context, &requested_width, NULL);
2007       requested_width += priv->padding;
2008
2009       real_requested_width = requested_width;
2010       if (real_requested_width < 0)
2011         real_requested_width = 0;
2012     }
2013
2014   if (priv->min_width != -1)
2015     real_requested_width = MAX (real_requested_width, priv->min_width);
2016
2017   if (priv->max_width != -1)
2018     real_requested_width = MIN (real_requested_width, priv->max_width);
2019
2020   return real_requested_width;
2021 }
2022
2023 void
2024 _gtk_tree_view_column_allocate (GtkTreeViewColumn *tree_column,
2025                                 int                x_offset,
2026                                 int                width)
2027 {
2028   GtkTreeViewColumnPrivate *priv;
2029   GtkAllocation             allocation;
2030   gboolean                  rtl;
2031
2032   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2033
2034   priv = tree_column->priv;
2035
2036   priv->width = width;
2037
2038   gtk_cell_area_context_allocate (priv->cell_area_context, priv->width - priv->padding, -1);
2039
2040   allocation.x      = x_offset;
2041   allocation.y      = 0;
2042   allocation.width  = width;
2043   allocation.height = _gtk_tree_view_get_header_height (GTK_TREE_VIEW (priv->tree_view));
2044
2045   gtk_widget_size_allocate (priv->button, &allocation);
2046
2047   if (priv->window)
2048     {
2049       rtl = (gtk_widget_get_direction (priv->tree_view) == GTK_TEXT_DIR_RTL);
2050       gdk_window_move_resize (priv->window,
2051                               allocation.x + (rtl ? 0 : allocation.width) - TREE_VIEW_DRAG_WIDTH/2,
2052                               allocation.y,
2053                               TREE_VIEW_DRAG_WIDTH, allocation.height);
2054     }
2055
2056   g_object_notify (G_OBJECT (tree_column), "width");
2057 }
2058
2059 /**
2060  * gtk_tree_view_column_set_fixed_width:
2061  * @tree_column: A #GtkTreeViewColumn.
2062  * @fixed_width: The size to set @tree_column to. Must be greater than 0.
2063  *
2064  * Sets the size of the column in pixels.  This is meaningful only if the sizing
2065  * type is #GTK_TREE_VIEW_COLUMN_FIXED.  The size of the column is clamped to
2066  * the min/max width for the column.  Please note that the min/max width of the
2067  * column doesn't actually affect the "fixed_width" property of the widget, just
2068  * the actual size when displayed.
2069  **/
2070 void
2071 gtk_tree_view_column_set_fixed_width (GtkTreeViewColumn *tree_column,
2072                                       gint               fixed_width)
2073 {
2074   GtkTreeViewColumnPrivate *priv;
2075
2076   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2077   g_return_if_fail (fixed_width > 0);
2078
2079   priv = tree_column->priv;
2080
2081   priv->fixed_width = fixed_width;
2082   priv->use_resized_width = FALSE;
2083
2084   if (priv->tree_view &&
2085       gtk_widget_get_realized (priv->tree_view) &&
2086       priv->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2087     {
2088       gtk_widget_queue_resize (priv->tree_view);
2089     }
2090
2091   g_object_notify (G_OBJECT (tree_column), "fixed-width");
2092 }
2093
2094 /**
2095  * gtk_tree_view_column_get_fixed_width:
2096  * @tree_column: a #GtkTreeViewColumn
2097  *
2098  * Gets the fixed width of the column.  This value is only meaning may not be
2099  * the actual width of the column on the screen, just what is requested.
2100  *
2101  * Return value: the fixed width of the column
2102  **/
2103 gint
2104 gtk_tree_view_column_get_fixed_width (GtkTreeViewColumn *tree_column)
2105 {
2106   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
2107
2108   return tree_column->priv->fixed_width;
2109 }
2110
2111 /**
2112  * gtk_tree_view_column_set_min_width:
2113  * @tree_column: A #GtkTreeViewColumn.
2114  * @min_width: The minimum width of the column in pixels, or -1.
2115  *
2116  * Sets the minimum width of the @tree_column.  If @min_width is -1, then the
2117  * minimum width is unset.
2118  **/
2119 void
2120 gtk_tree_view_column_set_min_width (GtkTreeViewColumn *tree_column,
2121                                     gint               min_width)
2122 {
2123   GtkTreeViewColumnPrivate *priv;
2124
2125   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2126   g_return_if_fail (min_width >= -1);
2127
2128   priv = tree_column->priv;
2129
2130   if (min_width == priv->min_width)
2131     return;
2132
2133   if (priv->visible &&
2134       priv->tree_view != NULL &&
2135       gtk_widget_get_realized (priv->tree_view))
2136     {
2137       if (min_width > priv->width)
2138         gtk_widget_queue_resize (priv->tree_view);
2139     }
2140
2141   priv->min_width = min_width;
2142   g_object_freeze_notify (G_OBJECT (tree_column));
2143   if (priv->max_width != -1 && priv->max_width < min_width)
2144     {
2145       priv->max_width = min_width;
2146       g_object_notify (G_OBJECT (tree_column), "max-width");
2147     }
2148   g_object_notify (G_OBJECT (tree_column), "min-width");
2149   g_object_thaw_notify (G_OBJECT (tree_column));
2150
2151   if (priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2152     _gtk_tree_view_column_autosize (GTK_TREE_VIEW (priv->tree_view),
2153                                     tree_column);
2154 }
2155
2156 /**
2157  * gtk_tree_view_column_get_min_width:
2158  * @tree_column: A #GtkTreeViewColumn.
2159  *
2160  * Returns the minimum width in pixels of the @tree_column, or -1 if no minimum
2161  * width is set.
2162  *
2163  * Return value: The minimum width of the @tree_column.
2164  **/
2165 gint
2166 gtk_tree_view_column_get_min_width (GtkTreeViewColumn *tree_column)
2167 {
2168   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), -1);
2169
2170   return tree_column->priv->min_width;
2171 }
2172
2173 /**
2174  * gtk_tree_view_column_set_max_width:
2175  * @tree_column: A #GtkTreeViewColumn.
2176  * @max_width: The maximum width of the column in pixels, or -1.
2177  *
2178  * Sets the maximum width of the @tree_column.  If @max_width is -1, then the
2179  * maximum width is unset.  Note, the column can actually be wider than max
2180  * width if it's the last column in a view.  In this case, the column expands to
2181  * fill any extra space.
2182  **/
2183 void
2184 gtk_tree_view_column_set_max_width (GtkTreeViewColumn *tree_column,
2185                                     gint               max_width)
2186 {
2187   GtkTreeViewColumnPrivate *priv;
2188
2189   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2190   g_return_if_fail (max_width >= -1);
2191
2192   priv = tree_column->priv;
2193
2194   if (max_width == priv->max_width)
2195     return;
2196
2197   if (priv->visible &&
2198       priv->tree_view != NULL &&
2199       gtk_widget_get_realized (priv->tree_view))
2200     {
2201       if (max_width != -1 && max_width < priv->width)
2202         gtk_widget_queue_resize (priv->tree_view);
2203     }
2204
2205   priv->max_width = max_width;
2206   g_object_freeze_notify (G_OBJECT (tree_column));
2207   if (max_width != -1 && max_width < priv->min_width)
2208     {
2209       priv->min_width = max_width;
2210       g_object_notify (G_OBJECT (tree_column), "min-width");
2211     }
2212   g_object_notify (G_OBJECT (tree_column), "max-width");
2213   g_object_thaw_notify (G_OBJECT (tree_column));
2214
2215   if (priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2216     _gtk_tree_view_column_autosize (GTK_TREE_VIEW (priv->tree_view),
2217                                     tree_column);
2218 }
2219
2220 /**
2221  * gtk_tree_view_column_get_max_width:
2222  * @tree_column: A #GtkTreeViewColumn.
2223  *
2224  * Returns the maximum width in pixels of the @tree_column, or -1 if no maximum
2225  * width is set.
2226  *
2227  * Return value: The maximum width of the @tree_column.
2228  **/
2229 gint
2230 gtk_tree_view_column_get_max_width (GtkTreeViewColumn *tree_column)
2231 {
2232   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), -1);
2233
2234   return tree_column->priv->max_width;
2235 }
2236
2237 /**
2238  * gtk_tree_view_column_clicked:
2239  * @tree_column: a #GtkTreeViewColumn
2240  *
2241  * Emits the "clicked" signal on the column.  This function will only work if
2242  * @tree_column is clickable.
2243  **/
2244 void
2245 gtk_tree_view_column_clicked (GtkTreeViewColumn *tree_column)
2246 {
2247   GtkTreeViewColumnPrivate *priv;
2248
2249   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2250
2251   priv = tree_column->priv;
2252
2253   if (priv->visible &&
2254       priv->button &&
2255       priv->clickable)
2256     gtk_button_clicked (GTK_BUTTON (priv->button));
2257 }
2258
2259 /**
2260  * gtk_tree_view_column_set_title:
2261  * @tree_column: A #GtkTreeViewColumn.
2262  * @title: The title of the @tree_column.
2263  *
2264  * Sets the title of the @tree_column.  If a custom widget has been set, then
2265  * this value is ignored.
2266  **/
2267 void
2268 gtk_tree_view_column_set_title (GtkTreeViewColumn *tree_column,
2269                                 const gchar       *title)
2270 {
2271   GtkTreeViewColumnPrivate *priv;
2272   gchar                    *new_title;
2273
2274   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2275
2276   priv = tree_column->priv;
2277
2278   new_title = g_strdup (title);
2279   g_free (priv->title);
2280   priv->title = new_title;
2281
2282   gtk_tree_view_column_update_button (tree_column);
2283   g_object_notify (G_OBJECT (tree_column), "title");
2284 }
2285
2286 /**
2287  * gtk_tree_view_column_get_title:
2288  * @tree_column: A #GtkTreeViewColumn.
2289  *
2290  * Returns the title of the widget.
2291  *
2292  * Return value: the title of the column. This string should not be
2293  * modified or freed.
2294  **/
2295 G_CONST_RETURN gchar *
2296 gtk_tree_view_column_get_title (GtkTreeViewColumn *tree_column)
2297 {
2298   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
2299
2300   return tree_column->priv->title;
2301 }
2302
2303 /**
2304  * gtk_tree_view_column_set_expand:
2305  * @tree_column: A #GtkTreeViewColumn
2306  * @expand: %TRUE if the column should take available extra space, %FALSE if not
2307  *
2308  * Sets the column to take available extra space.  This space is shared equally
2309  * amongst all columns that have the expand set to %TRUE.  If no column has this
2310  * option set, then the last column gets all extra space.  By default, every
2311  * column is created with this %FALSE.
2312  *
2313  * Since: 2.4
2314  **/
2315 void
2316 gtk_tree_view_column_set_expand (GtkTreeViewColumn *tree_column,
2317                                  gboolean           expand)
2318 {
2319   GtkTreeViewColumnPrivate *priv;
2320
2321   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2322
2323   priv = tree_column->priv;
2324
2325   expand = expand?TRUE:FALSE;
2326   if (priv->expand == expand)
2327     return;
2328   priv->expand = expand;
2329
2330   if (priv->visible &&
2331       priv->tree_view != NULL &&
2332       gtk_widget_get_realized (priv->tree_view))
2333     {
2334       /* We want to continue using the original width of the
2335        * column that includes additional space added by the user
2336        * resizing the columns and possibly extra (expanded) space, which
2337        * are not included in the resized width.
2338        */
2339       priv->use_resized_width = FALSE;
2340
2341       gtk_widget_queue_resize (priv->tree_view);
2342     }
2343
2344   g_object_notify (G_OBJECT (tree_column), "expand");
2345 }
2346
2347 /**
2348  * gtk_tree_view_column_get_expand:
2349  * @tree_column: a #GtkTreeViewColumn
2350  *
2351  * Return %TRUE if the column expands to take any available space.
2352  *
2353  * Return value: %TRUE, if the column expands
2354  *
2355  * Since: 2.4
2356  **/
2357 gboolean
2358 gtk_tree_view_column_get_expand (GtkTreeViewColumn *tree_column)
2359 {
2360   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2361
2362   return tree_column->priv->expand;
2363 }
2364
2365 /**
2366  * gtk_tree_view_column_set_clickable:
2367  * @tree_column: A #GtkTreeViewColumn.
2368  * @clickable: %TRUE if the header is active.
2369  *
2370  * Sets the header to be active if @active is %TRUE.  When the header is active,
2371  * then it can take keyboard focus, and can be clicked.
2372  **/
2373 void
2374 gtk_tree_view_column_set_clickable (GtkTreeViewColumn *tree_column,
2375                                     gboolean           clickable)
2376 {
2377   GtkTreeViewColumnPrivate *priv;
2378
2379   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2380
2381   priv = tree_column->priv;
2382
2383   clickable = !! clickable;
2384   if (priv->clickable == clickable)
2385     return;
2386
2387   priv->clickable = clickable;
2388   gtk_tree_view_column_update_button (tree_column);
2389   g_object_notify (G_OBJECT (tree_column), "clickable");
2390 }
2391
2392 /**
2393  * gtk_tree_view_column_get_clickable:
2394  * @tree_column: a #GtkTreeViewColumn
2395  *
2396  * Returns %TRUE if the user can click on the header for the column.
2397  *
2398  * Return value: %TRUE if user can click the column header.
2399  **/
2400 gboolean
2401 gtk_tree_view_column_get_clickable (GtkTreeViewColumn *tree_column)
2402 {
2403   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2404
2405   return tree_column->priv->clickable;
2406 }
2407
2408 /**
2409  * gtk_tree_view_column_set_widget:
2410  * @tree_column: A #GtkTreeViewColumn.
2411  * @widget: (allow-none): A child #GtkWidget, or %NULL.
2412  *
2413  * Sets the widget in the header to be @widget.  If widget is %NULL, then the
2414  * header button is set with a #GtkLabel set to the title of @tree_column.
2415  **/
2416 void
2417 gtk_tree_view_column_set_widget (GtkTreeViewColumn *tree_column,
2418                                  GtkWidget         *widget)
2419 {
2420   GtkTreeViewColumnPrivate *priv;
2421
2422   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2423   g_return_if_fail (widget == NULL || GTK_IS_WIDGET (widget));
2424
2425   priv = tree_column->priv;
2426
2427   if (widget)
2428     g_object_ref_sink (widget);
2429
2430   if (priv->child)
2431     g_object_unref (priv->child);
2432
2433   priv->child = widget;
2434   gtk_tree_view_column_update_button (tree_column);
2435   g_object_notify (G_OBJECT (tree_column), "widget");
2436 }
2437
2438 /**
2439  * gtk_tree_view_column_get_widget:
2440  * @tree_column: A #GtkTreeViewColumn.
2441  *
2442  * Returns the #GtkWidget in the button on the column header.
2443  * If a custom widget has not been set then %NULL is returned.
2444  *
2445  * Return value: (transfer none): The #GtkWidget in the column
2446  *     header, or %NULL
2447  **/
2448 GtkWidget *
2449 gtk_tree_view_column_get_widget (GtkTreeViewColumn *tree_column)
2450 {
2451   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
2452
2453   return tree_column->priv->child;
2454 }
2455
2456 /**
2457  * gtk_tree_view_column_set_alignment:
2458  * @tree_column: A #GtkTreeViewColumn.
2459  * @xalign: The alignment, which is between [0.0 and 1.0] inclusive.
2460  *
2461  * Sets the alignment of the title or custom widget inside the column header.
2462  * The alignment determines its location inside the button -- 0.0 for left, 0.5
2463  * for center, 1.0 for right.
2464  **/
2465 void
2466 gtk_tree_view_column_set_alignment (GtkTreeViewColumn *tree_column,
2467                                     gfloat             xalign)
2468 {
2469   GtkTreeViewColumnPrivate *priv;
2470
2471   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2472
2473   priv = tree_column->priv;
2474
2475   xalign = CLAMP (xalign, 0.0, 1.0);
2476
2477   if (priv->xalign == xalign)
2478     return;
2479
2480   priv->xalign = xalign;
2481   gtk_tree_view_column_update_button (tree_column);
2482   g_object_notify (G_OBJECT (tree_column), "alignment");
2483 }
2484
2485 /**
2486  * gtk_tree_view_column_get_alignment:
2487  * @tree_column: A #GtkTreeViewColumn.
2488  *
2489  * Returns the current x alignment of @tree_column.  This value can range
2490  * between 0.0 and 1.0.
2491  *
2492  * Return value: The current alignent of @tree_column.
2493  **/
2494 gfloat
2495 gtk_tree_view_column_get_alignment (GtkTreeViewColumn *tree_column)
2496 {
2497   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0.5);
2498
2499   return tree_column->priv->xalign;
2500 }
2501
2502 /**
2503  * gtk_tree_view_column_set_reorderable:
2504  * @tree_column: A #GtkTreeViewColumn
2505  * @reorderable: %TRUE, if the column can be reordered.
2506  *
2507  * If @reorderable is %TRUE, then the column can be reordered by the end user
2508  * dragging the header.
2509  **/
2510 void
2511 gtk_tree_view_column_set_reorderable (GtkTreeViewColumn *tree_column,
2512                                       gboolean           reorderable)
2513 {
2514   GtkTreeViewColumnPrivate *priv;
2515
2516   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2517
2518   priv = tree_column->priv;
2519
2520   /*  if (reorderable)
2521       gtk_tree_view_column_set_clickable (tree_column, TRUE);*/
2522
2523   if (priv->reorderable == (reorderable?TRUE:FALSE))
2524     return;
2525
2526   priv->reorderable = (reorderable?TRUE:FALSE);
2527   gtk_tree_view_column_update_button (tree_column);
2528   g_object_notify (G_OBJECT (tree_column), "reorderable");
2529 }
2530
2531 /**
2532  * gtk_tree_view_column_get_reorderable:
2533  * @tree_column: A #GtkTreeViewColumn
2534  *
2535  * Returns %TRUE if the @tree_column can be reordered by the user.
2536  *
2537  * Return value: %TRUE if the @tree_column can be reordered by the user.
2538  **/
2539 gboolean
2540 gtk_tree_view_column_get_reorderable (GtkTreeViewColumn *tree_column)
2541 {
2542   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2543
2544   return tree_column->priv->reorderable;
2545 }
2546
2547
2548 /**
2549  * gtk_tree_view_column_set_sort_column_id:
2550  * @tree_column: a #GtkTreeViewColumn
2551  * @sort_column_id: The @sort_column_id of the model to sort on.
2552  *
2553  * Sets the logical @sort_column_id that this column sorts on when this column
2554  * is selected for sorting.  Doing so makes the column header clickable.
2555  **/
2556 void
2557 gtk_tree_view_column_set_sort_column_id (GtkTreeViewColumn *tree_column,
2558                                          gint               sort_column_id)
2559 {
2560   GtkTreeViewColumnPrivate *priv;
2561
2562   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2563   g_return_if_fail (sort_column_id >= -1);
2564
2565   priv = tree_column->priv;
2566
2567   if (priv->sort_column_id == sort_column_id)
2568     return;
2569
2570   priv->sort_column_id = sort_column_id;
2571
2572   /* Handle unsetting the id */
2573   if (sort_column_id == -1)
2574     {
2575       GtkTreeModel *model = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
2576
2577       if (priv->sort_clicked_signal)
2578         {
2579           g_signal_handler_disconnect (tree_column, priv->sort_clicked_signal);
2580           priv->sort_clicked_signal = 0;
2581         }
2582
2583       if (priv->sort_column_changed_signal)
2584         {
2585           g_signal_handler_disconnect (model, priv->sort_column_changed_signal);
2586           priv->sort_column_changed_signal = 0;
2587         }
2588
2589       gtk_tree_view_column_set_sort_order (tree_column, GTK_SORT_ASCENDING);
2590       gtk_tree_view_column_set_sort_indicator (tree_column, FALSE);
2591       gtk_tree_view_column_set_clickable (tree_column, FALSE);
2592       g_object_notify (G_OBJECT (tree_column), "sort-column-id");
2593       return;
2594     }
2595
2596   gtk_tree_view_column_set_clickable (tree_column, TRUE);
2597
2598   if (! priv->sort_clicked_signal)
2599     priv->sort_clicked_signal = g_signal_connect (tree_column,
2600                                                   "clicked",
2601                                                   G_CALLBACK (gtk_tree_view_column_sort),
2602                                                   NULL);
2603
2604   gtk_tree_view_column_setup_sort_column_id_callback (tree_column);
2605   g_object_notify (G_OBJECT (tree_column), "sort-column-id");
2606 }
2607
2608 /**
2609  * gtk_tree_view_column_get_sort_column_id:
2610  * @tree_column: a #GtkTreeViewColumn
2611  *
2612  * Gets the logical @sort_column_id that the model sorts on when this
2613  * column is selected for sorting.
2614  * See gtk_tree_view_column_set_sort_column_id().
2615  *
2616  * Return value: the current @sort_column_id for this column, or -1 if
2617  *               this column can't be used for sorting.
2618  **/
2619 gint
2620 gtk_tree_view_column_get_sort_column_id (GtkTreeViewColumn *tree_column)
2621 {
2622   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
2623
2624   return tree_column->priv->sort_column_id;
2625 }
2626
2627 /**
2628  * gtk_tree_view_column_set_sort_indicator:
2629  * @tree_column: a #GtkTreeViewColumn
2630  * @setting: %TRUE to display an indicator that the column is sorted
2631  *
2632  * Call this function with a @setting of %TRUE to display an arrow in
2633  * the header button indicating the column is sorted. Call
2634  * gtk_tree_view_column_set_sort_order() to change the direction of
2635  * the arrow.
2636  *
2637  **/
2638 void
2639 gtk_tree_view_column_set_sort_indicator (GtkTreeViewColumn     *tree_column,
2640                                          gboolean               setting)
2641 {
2642   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2643
2644   setting = setting != FALSE;
2645
2646   if (setting == tree_column->priv->show_sort_indicator)
2647     return;
2648
2649   tree_column->priv->show_sort_indicator = setting;
2650   gtk_tree_view_column_update_button (tree_column);
2651   g_object_notify (G_OBJECT (tree_column), "sort-indicator");
2652 }
2653
2654 /**
2655  * gtk_tree_view_column_get_sort_indicator:
2656  * @tree_column: a #GtkTreeViewColumn
2657  *
2658  * Gets the value set by gtk_tree_view_column_set_sort_indicator().
2659  *
2660  * Return value: whether the sort indicator arrow is displayed
2661  **/
2662 gboolean
2663 gtk_tree_view_column_get_sort_indicator  (GtkTreeViewColumn     *tree_column)
2664 {
2665   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2666
2667   return tree_column->priv->show_sort_indicator;
2668 }
2669
2670 /**
2671  * gtk_tree_view_column_set_sort_order:
2672  * @tree_column: a #GtkTreeViewColumn
2673  * @order: sort order that the sort indicator should indicate
2674  *
2675  * Changes the appearance of the sort indicator.
2676  *
2677  * This <emphasis>does not</emphasis> actually sort the model.  Use
2678  * gtk_tree_view_column_set_sort_column_id() if you want automatic sorting
2679  * support.  This function is primarily for custom sorting behavior, and should
2680  * be used in conjunction with gtk_tree_sortable_set_sort_column() to do
2681  * that. For custom models, the mechanism will vary.
2682  *
2683  * The sort indicator changes direction to indicate normal sort or reverse sort.
2684  * Note that you must have the sort indicator enabled to see anything when
2685  * calling this function; see gtk_tree_view_column_set_sort_indicator().
2686  **/
2687 void
2688 gtk_tree_view_column_set_sort_order      (GtkTreeViewColumn     *tree_column,
2689                                           GtkSortType            order)
2690 {
2691   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2692
2693   if (order == tree_column->priv->sort_order)
2694     return;
2695
2696   tree_column->priv->sort_order = order;
2697   gtk_tree_view_column_update_button (tree_column);
2698   g_object_notify (G_OBJECT (tree_column), "sort-order");
2699 }
2700
2701 /**
2702  * gtk_tree_view_column_get_sort_order:
2703  * @tree_column: a #GtkTreeViewColumn
2704  *
2705  * Gets the value set by gtk_tree_view_column_set_sort_order().
2706  *
2707  * Return value: the sort order the sort indicator is indicating
2708  **/
2709 GtkSortType
2710 gtk_tree_view_column_get_sort_order      (GtkTreeViewColumn     *tree_column)
2711 {
2712   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
2713
2714   return tree_column->priv->sort_order;
2715 }
2716
2717 /**
2718  * gtk_tree_view_column_cell_set_cell_data:
2719  * @tree_column: A #GtkTreeViewColumn.
2720  * @tree_model: The #GtkTreeModel to to get the cell renderers attributes from.
2721  * @iter: The #GtkTreeIter to to get the cell renderer's attributes from.
2722  * @is_expander: %TRUE, if the row has children
2723  * @is_expanded: %TRUE, if the row has visible children
2724  *
2725  * Sets the cell renderer based on the @tree_model and @iter.  That is, for
2726  * every attribute mapping in @tree_column, it will get a value from the set
2727  * column on the @iter, and use that value to set the attribute on the cell
2728  * renderer.  This is used primarily by the #GtkTreeView.
2729  **/
2730 void
2731 gtk_tree_view_column_cell_set_cell_data (GtkTreeViewColumn *tree_column,
2732                                          GtkTreeModel      *tree_model,
2733                                          GtkTreeIter       *iter,
2734                                          gboolean           is_expander,
2735                                          gboolean           is_expanded)
2736 {
2737   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2738
2739   if (tree_model == NULL)
2740     return;
2741
2742   gtk_cell_area_apply_attributes (tree_column->priv->cell_area, tree_model, iter,
2743                                   is_expander, is_expanded);
2744 }
2745
2746 /**
2747  * gtk_tree_view_column_cell_get_size:
2748  * @tree_column: A #GtkTreeViewColumn.
2749  * @cell_area: (allow-none): The area a cell in the column will be allocated, or %NULL
2750  * @x_offset: (allow-none): location to return x offset of a cell relative to @cell_area, or %NULL
2751  * @y_offset: (allow-none): location to return y offset of a cell relative to @cell_area, or %NULL
2752  * @width: (allow-none): location to return width needed to render a cell, or %NULL
2753  * @height: (allow-none): location to return height needed to render a cell, or %NULL
2754  *
2755  * Obtains the width and height needed to render the column.  This is used
2756  * primarily by the #GtkTreeView.
2757  **/
2758 void
2759 gtk_tree_view_column_cell_get_size (GtkTreeViewColumn  *tree_column,
2760                                     const GdkRectangle *cell_area,
2761                                     gint               *x_offset,
2762                                     gint               *y_offset,
2763                                     gint               *width,
2764                                     gint               *height)
2765 {
2766   GtkTreeViewColumnPrivate *priv;
2767   gint min_width = 0, min_height = 0;
2768
2769   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2770
2771   priv = tree_column->priv;
2772
2773   g_signal_handler_block (priv->cell_area_context,
2774                           priv->context_changed_signal);
2775
2776   gtk_cell_area_get_preferred_width (priv->cell_area,
2777                                      priv->cell_area_context,
2778                                      priv->tree_view,
2779                                      NULL, NULL);
2780
2781   gtk_cell_area_context_get_preferred_width (priv->cell_area_context, &min_width, NULL);
2782
2783   gtk_cell_area_get_preferred_height_for_width (priv->cell_area,
2784                                                 priv->cell_area_context,
2785                                                 priv->tree_view,
2786                                                 min_width,
2787                                                 &min_height,
2788                                                 NULL);
2789
2790   g_signal_handler_unblock (priv->cell_area_context,
2791                             priv->context_changed_signal);
2792
2793
2794   if (height)
2795     * height = min_height;
2796   if (width)
2797     * width = min_width;
2798
2799 }
2800
2801 /**
2802  * gtk_tree_view_column_cell_render:
2803  * @tree_column: A #GtkTreeViewColumn.
2804  * @cr: cairo context to draw to
2805  * @background_area: entire cell area (including tree expanders and maybe padding on the sides)
2806  * @cell_area: area normally rendered by a cell renderer
2807  * @flags: flags that affect rendering
2808  *
2809  * Renders the cell contained by #tree_column. This is used primarily by the
2810  * #GtkTreeView.
2811  **/
2812 void
2813 _gtk_tree_view_column_cell_render (GtkTreeViewColumn  *tree_column,
2814                                    cairo_t            *cr,
2815                                    const GdkRectangle *background_area,
2816                                    const GdkRectangle *cell_area,
2817                                    guint               flags,
2818                                    gboolean            draw_focus)
2819 {
2820   GtkTreeViewColumnPrivate *priv;
2821
2822   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2823   g_return_if_fail (cr != NULL);
2824   g_return_if_fail (background_area != NULL);
2825   g_return_if_fail (cell_area != NULL);
2826
2827   priv = tree_column->priv;
2828
2829   cairo_save (cr);
2830
2831   gtk_cell_area_render (priv->cell_area, priv->cell_area_context,
2832                         priv->tree_view, cr,
2833                         background_area, cell_area, flags,
2834                         draw_focus);
2835
2836   cairo_restore (cr);
2837 }
2838
2839 gboolean
2840 _gtk_tree_view_column_cell_event (GtkTreeViewColumn  *tree_column,
2841                                   GdkEvent           *event,
2842                                   const GdkRectangle *cell_area,
2843                                   guint               flags)
2844 {
2845   GtkTreeViewColumnPrivate *priv;
2846
2847   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2848
2849   priv = tree_column->priv;
2850
2851   return gtk_cell_area_event (priv->cell_area,
2852                               priv->cell_area_context,
2853                               priv->tree_view,
2854                               event,
2855                               cell_area,
2856                               flags);
2857 }
2858
2859 /**
2860  * gtk_tree_view_column_cell_is_visible:
2861  * @tree_column: A #GtkTreeViewColumn
2862  *
2863  * Returns %TRUE if any of the cells packed into the @tree_column are visible.
2864  * For this to be meaningful, you must first initialize the cells with
2865  * gtk_tree_view_column_cell_set_cell_data()
2866  *
2867  * Return value: %TRUE, if any of the cells packed into the @tree_column are currently visible
2868  **/
2869 gboolean
2870 gtk_tree_view_column_cell_is_visible (GtkTreeViewColumn *tree_column)
2871 {
2872   GList *list;
2873   GList *cells;
2874   GtkTreeViewColumnPrivate *priv;
2875
2876   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2877
2878   priv = tree_column->priv;
2879
2880   cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (priv->cell_area));
2881   for (list = cells; list; list = list->next)
2882     {
2883       if (gtk_cell_renderer_get_visible (list->data))
2884         {
2885           g_list_free (cells);
2886           return TRUE;
2887         }
2888     }
2889
2890   g_list_free (cells);
2891
2892   return FALSE;
2893 }
2894
2895 /**
2896  * gtk_tree_view_column_focus_cell:
2897  * @tree_column: A #GtkTreeViewColumn
2898  * @cell: A #GtkCellRenderer
2899  *
2900  * Sets the current keyboard focus to be at @cell, if the column contains
2901  * 2 or more editable and activatable cells.
2902  *
2903  * Since: 2.2
2904  **/
2905 void
2906 gtk_tree_view_column_focus_cell (GtkTreeViewColumn *tree_column,
2907                                  GtkCellRenderer   *cell)
2908 {
2909   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2910   g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
2911
2912   gtk_cell_area_set_focus_cell (tree_column->priv->cell_area, cell);
2913 }
2914
2915 void
2916 _gtk_tree_view_column_cell_set_dirty (GtkTreeViewColumn *tree_column,
2917                                       gboolean           install_handler)
2918 {
2919   GtkTreeViewColumnPrivate *priv = tree_column->priv;
2920
2921   priv->dirty = TRUE;
2922   priv->padding = 0;
2923   priv->width = 0;
2924
2925   /* Issue a manual reset on the context to have all
2926    * sizes re-requested for the context.
2927    *
2928    * This annoying 'resetting_context' flag is unfortunately
2929    * necessary to prevent some infinite recursion
2930    */
2931   if (!tree_column->priv->resetting_context)
2932     {
2933       g_signal_handler_block (priv->cell_area_context,
2934                               priv->context_changed_signal);
2935       gtk_cell_area_context_reset (priv->cell_area_context);
2936       g_signal_handler_unblock (priv->cell_area_context,
2937                                 priv->context_changed_signal);
2938     }
2939
2940   if (priv->tree_view &&
2941       gtk_widget_get_realized (priv->tree_view))
2942     {
2943       _gtk_tree_view_install_mark_rows_col_dirty (GTK_TREE_VIEW (priv->tree_view), install_handler);
2944       gtk_widget_queue_resize (priv->tree_view);
2945     }
2946 }
2947
2948 gboolean
2949 _gtk_tree_view_column_cell_get_dirty (GtkTreeViewColumn  *tree_column)
2950 {
2951   return tree_column->priv->dirty;
2952 }
2953
2954 /**
2955  * gtk_tree_view_column_cell_get_position:
2956  * @tree_column: a #GtkTreeViewColumn
2957  * @cell_renderer: a #GtkCellRenderer
2958  * @x_offset: return location for the horizontal position of @cell within
2959  *            @tree_column, may be %NULL
2960  * @width: return location for the width of @cell, may be %NULL
2961  *
2962  * Obtains the horizontal position and size of a cell in a column. If the
2963  * cell is not found in the column, @start_pos and @width are not changed and
2964  * %FALSE is returned.
2965  *
2966  * Return value: %TRUE if @cell belongs to @tree_column.
2967  */
2968 gboolean
2969 gtk_tree_view_column_cell_get_position (GtkTreeViewColumn *tree_column,
2970                                         GtkCellRenderer   *cell_renderer,
2971                                         gint              *x_offset,
2972                                         gint              *width)
2973 {
2974   GtkTreeViewColumnPrivate *priv;
2975   GdkRectangle zero_cell_area = { 0, };
2976   GdkRectangle allocation;
2977
2978   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2979   g_return_val_if_fail (GTK_IS_CELL_RENDERER (cell_renderer), FALSE);
2980
2981   priv = tree_column->priv;
2982
2983   /* FIXME: Could use a boolean return value for invalid cells */
2984   gtk_cell_area_get_cell_allocation (priv->cell_area,
2985                                      priv->cell_area_context,
2986                                      priv->tree_view,
2987                                      cell_renderer,
2988                                      &zero_cell_area,
2989                                      &allocation);
2990
2991   if (x_offset)
2992     *x_offset = allocation.x;
2993   if (width)
2994     *width = allocation.width;
2995
2996   return TRUE;
2997 }
2998
2999 /**
3000  * gtk_tree_view_column_queue_resize:
3001  * @tree_column: A #GtkTreeViewColumn
3002  *
3003  * Flags the column, and the cell renderers added to this column, to have
3004  * their sizes renegotiated.
3005  *
3006  * Since: 2.8
3007  **/
3008 void
3009 gtk_tree_view_column_queue_resize (GtkTreeViewColumn *tree_column)
3010 {
3011   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
3012
3013   if (tree_column->priv->tree_view)
3014     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
3015 }
3016
3017 /**
3018  * gtk_tree_view_column_get_tree_view:
3019  * @tree_column: A #GtkTreeViewColumn
3020  *
3021  * Returns the #GtkTreeView wherein @tree_column has been inserted.
3022  * If @column is currently not inserted in any tree view, %NULL is
3023  * returned.
3024  *
3025  * Return value: (transfer none): The tree view wherein @column has
3026  *     been inserted if any, %NULL otherwise.
3027  *
3028  * Since: 2.12
3029  */
3030 GtkWidget *
3031 gtk_tree_view_column_get_tree_view (GtkTreeViewColumn *tree_column)
3032 {
3033   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
3034
3035   return tree_column->priv->tree_view;
3036 }
3037
3038 /**
3039  * gtk_tree_view_column_get_button:
3040  * @tree_column: A #GtkTreeViewColumn
3041  *
3042  * Returns the button used in the treeview column header
3043  *
3044  * Return value: (transfer none): The button for the column header.
3045  *
3046  * Since: 3.0
3047  */
3048 GtkWidget *
3049 gtk_tree_view_column_get_button (GtkTreeViewColumn *tree_column)
3050 {
3051   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
3052
3053   return tree_column->priv->button;
3054 }
3055
3056 GdkWindow *
3057 _gtk_tree_view_column_get_window (GtkTreeViewColumn  *column)
3058 {
3059   return column->priv->window;
3060 }
3061
3062 void
3063 _gtk_tree_view_column_push_padding (GtkTreeViewColumn  *column,
3064                                     gint                padding)
3065 {
3066   column->priv->padding = MAX (column->priv->padding, padding);
3067 }
3068
3069 gint
3070 _gtk_tree_view_column_get_requested_width (GtkTreeViewColumn  *column)
3071 {
3072   gint requested_width;
3073
3074   gtk_cell_area_context_get_preferred_width (column->priv->cell_area_context, &requested_width, NULL);
3075
3076   return requested_width + column->priv->padding;
3077 }
3078
3079
3080 void
3081 _gtk_tree_view_column_set_resized_width (GtkTreeViewColumn  *column,
3082                                          gint                width)
3083 {
3084   column->priv->resized_width = width;
3085 }
3086
3087 gint
3088 _gtk_tree_view_column_get_resized_width (GtkTreeViewColumn  *column)
3089 {
3090   return column->priv->resized_width;
3091 }
3092
3093 void
3094 _gtk_tree_view_column_set_use_resized_width (GtkTreeViewColumn  *column,
3095                                              gboolean            use_resized_width)
3096 {
3097   column->priv->use_resized_width = use_resized_width;
3098 }
3099
3100 gboolean
3101 _gtk_tree_view_column_get_use_resized_width (GtkTreeViewColumn  *column)
3102 {
3103   return column->priv->use_resized_width;
3104 }
3105
3106 gint
3107 _gtk_tree_view_column_get_drag_x (GtkTreeViewColumn  *column)
3108 {
3109   return column->priv->drag_x;
3110 }
3111
3112 GtkCellAreaContext *
3113 _gtk_tree_view_column_get_context (GtkTreeViewColumn  *column)
3114 {
3115   return column->priv->cell_area_context;
3116 }