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