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

   1 /* gtktreeviewcolumn.c
   2  * Copyright (C) 2000  Red Hat, Inc.,  Jonathan Blandford <jrb@redhat.com>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 #include "config.h"
  21
  22 #include "gtktreeviewcolumn.h"
  23
  24 #include <string.h>
  25
  26 #include "gtktreeview.h"
  27 #include "gtktreeprivate.h"
  28 #include "gtkcelllayout.h"
  29 #include "gtkbutton.h"
  30 #include "gtkalignment.h"
  31 #include "gtklabel.h"
  32 #include "gtkhbox.h"
  33 #include "gtkmarshalers.h"
  34 #include "gtkarrow.h"
  35 #include "gtkcellareacontext.h"
  36 #include "gtkcellareabox.h"
  37 #include "gtkprivate.h"
  38 #include "gtkintl.h"
  39
  40
  41 /**
  42  * SECTION:gtktreeviewcolumn
  43  * @Short_description: A visible column in a GtkTreeView widget
  44  * @Title: GtkTreeViewColumn
  45  * @See_also: #GtkTreeView, #GtkTreeSelection, #GtkTreeDnd, #GtkTreeMode, #GtkTreeSortable,
  46  *   #GtkTreeModelSort, #GtkListStore, #GtkTreeStore, #GtkCellRenderer, #GtkCellEditable,
  47  *   #GtkCellRendererPixbuf, #GtkCellRendererText, #GtkCellRendererToggle
  48  *
  49  * The GtkTreeViewColumn object represents a visible column in a #GtkTreeView widget.
  50  * It allows to set properties of the column header, and functions as a holding pen for
  51  * the cell renderers which determine how the data in the column is displayed.
  52  *
  53  * Please refer to the <link linkend="TreeWidget">tree widget conceptual overview</link>
  54  * for an overview of all the objects and data types related to the tree widget and how
  55  * they work together.
  56  */
  57
  58
  59 /* Type methods */
  60 static void gtk_tree_view_column_cell_layout_init              (GtkCellLayoutIface      *iface);
  61
  62 /* GObject methods */
  63 static void gtk_tree_view_column_set_property                  (GObject                 *object,
  64                                                                 guint                    prop_id,
  65                                                                 const GValue            *value,
  66                                                                 GParamSpec              *pspec);
  67 static void gtk_tree_view_column_get_property                  (GObject                 *object,
  68                                                                 guint                    prop_id,
  69                                                                 GValue                  *value,
  70                                                                 GParamSpec              *pspec);
  71 static void gtk_tree_view_column_finalize                      (GObject                 *object);
  72 static void gtk_tree_view_column_dispose                       (GObject                 *object);
  73 static GObject *gtk_tree_view_column_constructor               (GType                    type,
  74                                                                 guint                    n_construct_properties,
  75                                                                 GObjectConstructParam   *construct_properties);
  76
  77 /* GtkCellLayout implementation */
  78 static GtkCellArea *gtk_tree_view_column_cell_layout_get_area  (GtkCellLayout           *cell_layout);
  79
  80 /* Button handling code */
  81 static void gtk_tree_view_column_create_button                 (GtkTreeViewColumn       *tree_column);
  82 static void gtk_tree_view_column_update_button                 (GtkTreeViewColumn       *tree_column);
  83
  84 /* Button signal handlers */
  85 static gint gtk_tree_view_column_button_event                  (GtkWidget               *widget,
  86                                                                 GdkEvent                *event,
  87                                                                 gpointer                 data);
  88 static void gtk_tree_view_column_button_clicked                (GtkWidget               *widget,
  89                                                                 gpointer                 data);
  90 static gboolean gtk_tree_view_column_mnemonic_activate         (GtkWidget *widget,
  91                                                                 gboolean   group_cycling,
  92                                                                 gpointer   data);
  93
  94 /* Property handlers */
  95 static void gtk_tree_view_model_sort_column_changed            (GtkTreeSortable         *sortable,
  96                                                                 GtkTreeViewColumn       *tree_column);
  97
  98 /* GtkCellArea/GtkCellAreaContext callbacks */
  99 static void gtk_tree_view_column_context_changed               (GtkCellAreaContext      *context,
 100                                                                 GParamSpec              *pspec,
 101                                                                 GtkTreeViewColumn       *tree_column);
 102 static void gtk_tree_view_column_add_editable_callback         (GtkCellArea             *area,
 103                                                                 GtkCellRenderer         *renderer,
 104                                                                 GtkCellEditable         *edit_widget,
 105                                                                 GdkRectangle            *cell_area,
 106                                                                 const gchar             *path_string,
 107                                                                 gpointer                 user_data);
 108 static void gtk_tree_view_column_remove_editable_callback      (GtkCellArea             *area,
 109                                                                 GtkCellRenderer         *renderer,
 110                                                                 GtkCellEditable         *edit_widget,
 111                                                                 gpointer                 user_data);
 112
 113 /* Internal functions */
 114 static void gtk_tree_view_column_sort                          (GtkTreeViewColumn       *tree_column,
 115                                                                 gpointer                 data);
 116 static void gtk_tree_view_column_setup_sort_column_id_callback (GtkTreeViewColumn       *tree_column);
 117 static void gtk_tree_view_column_set_attributesv               (GtkTreeViewColumn       *tree_column,
 118                                                                 GtkCellRenderer         *cell_renderer,
 119                                                                 va_list                  args);
 120
 121 /* GtkBuildable implementation */
 122 static void gtk_tree_view_column_buildable_init                 (GtkBuildableIface     *iface);
 123
 124
 125 struct _GtkTreeViewColumnPrivate
 126 {
 127   GtkWidget *tree_view;
 128   GtkWidget *button;
 129   GtkWidget *child;
 130   GtkWidget *arrow;
 131   GtkWidget *alignment;
 132   GdkWindow *window;
 133   gfloat xalign;
 134   gulong property_changed_signal;
 135
 136   /* Sizing fields */
 137   /* see gtk+/doc/tree-column-sizing.txt for more information on them */
 138   GtkTreeViewColumnSizing column_type;
 139   gint requested_width;
 140   gint resized_width;
 141   gint width;
 142   gint fixed_width;
 143   gint min_width;
 144   gint max_width;
 145
 146   /* dragging columns */
 147   gint drag_x;
 148   gint drag_y;
 149
 150   gchar *title;
 151
 152   /* Sorting */
 153   gulong      sort_clicked_signal;
 154   gulong      sort_column_changed_signal;
 155   gint        sort_column_id;
 156   GtkSortType sort_order;
 157
 158   /* Cell area */
 159   GtkCellArea        *cell_area;
 160   GtkCellAreaContext *cell_area_context;
 161   gulong              add_editable_signal;
 162   gulong              remove_editable_signal;
 163   gulong              context_changed_signal;
 164
 165   /* Flags */
 166   guint visible             : 1;
 167   guint resizable           : 1;
 168   guint clickable           : 1;
 169   guint dirty               : 1;
 170   guint show_sort_indicator : 1;
 171   guint maybe_reordered     : 1;
 172   guint reorderable         : 1;
 173   guint use_resized_width   : 1;
 174   guint expand              : 1;
 175 };
 176
 177 enum
 178 {
 179   PROP_0,
 180   PROP_VISIBLE,
 181   PROP_RESIZABLE,
 182   PROP_WIDTH,
 183   PROP_SPACING,
 184   PROP_SIZING,
 185   PROP_FIXED_WIDTH,
 186   PROP_MIN_WIDTH,
 187   PROP_MAX_WIDTH,
 188   PROP_TITLE,
 189   PROP_EXPAND,
 190   PROP_CLICKABLE,
 191   PROP_WIDGET,
 192   PROP_ALIGNMENT,
 193   PROP_REORDERABLE,
 194   PROP_SORT_INDICATOR,
 195   PROP_SORT_ORDER,
 196   PROP_SORT_COLUMN_ID,
 197   PROP_CELL_AREA
 198 };
 199
 200 enum
 201 {
 202   CLICKED,
 203   LAST_SIGNAL
 204 };
 205
 206 static guint tree_column_signals[LAST_SIGNAL] = { 0 };
 207
 208 G_DEFINE_TYPE_WITH_CODE (GtkTreeViewColumn, gtk_tree_view_column, G_TYPE_INITIALLY_UNOWNED,
 209                          G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT,
 210                                                 gtk_tree_view_column_cell_layout_init)
 211                          G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
 212                                                 gtk_tree_view_column_buildable_init))
 213
 214
 215 static void
 216 gtk_tree_view_column_class_init (GtkTreeViewColumnClass *class)
 217 {
 218   GObjectClass *object_class;
 219
 220   object_class = (GObjectClass*) class;
 221
 222   class->clicked = NULL;
 223
 224   object_class->constructor = gtk_tree_view_column_constructor;
 225   object_class->finalize = gtk_tree_view_column_finalize;
 226   object_class->dispose = gtk_tree_view_column_dispose;
 227   object_class->set_property = gtk_tree_view_column_set_property;
 228   object_class->get_property = gtk_tree_view_column_get_property;
 229
 230   tree_column_signals[CLICKED] =
 231     g_signal_new (I_("clicked"),
 232                   G_OBJECT_CLASS_TYPE (object_class),
 233                   G_SIGNAL_RUN_LAST,
 234                   G_STRUCT_OFFSET (GtkTreeViewColumnClass, clicked),
 235                   NULL, NULL,
 236                   _gtk_marshal_VOID__VOID,
 237                   G_TYPE_NONE, 0);
 238
 239   g_object_class_install_property (object_class,
 240                                    PROP_VISIBLE,
 241                                    g_param_spec_boolean ("visible",
 242                                                         P_("Visible"),
 243                                                         P_("Whether to display the column"),
 244                                                          TRUE,
 245                                                          GTK_PARAM_READWRITE));
 246
 247   g_object_class_install_property (object_class,
 248                                    PROP_RESIZABLE,
 249                                    g_param_spec_boolean ("resizable",
 250                                                          P_("Resizable"),
 251                                                          P_("Column is user-resizable"),
 252                                                          FALSE,
 253                                                          GTK_PARAM_READWRITE));
 254
 255   g_object_class_install_property (object_class,
 256                                    PROP_WIDTH,
 257                                    g_param_spec_int ("width",
 258                                                      P_("Width"),
 259                                                      P_("Current width of the column"),
 260                                                      0,
 261                                                      G_MAXINT,
 262                                                      0,
 263                                                      GTK_PARAM_READABLE));
 264   g_object_class_install_property (object_class,
 265                                    PROP_SPACING,
 266                                    g_param_spec_int ("spacing",
 267                                                      P_("Spacing"),
 268                                                      P_("Space which is inserted between cells"),
 269                                                      0,
 270                                                      G_MAXINT,
 271                                                      0,
 272                                                      GTK_PARAM_READWRITE));
 273   g_object_class_install_property (object_class,
 274                                    PROP_SIZING,
 275                                    g_param_spec_enum ("sizing",
 276                                                       P_("Sizing"),
 277                                                       P_("Resize mode of the column"),
 278                                                       GTK_TYPE_TREE_VIEW_COLUMN_SIZING,
 279                                                       GTK_TREE_VIEW_COLUMN_GROW_ONLY,
 280                                                       GTK_PARAM_READWRITE));
 281
 282   g_object_class_install_property (object_class,
 283                                    PROP_FIXED_WIDTH,
 284                                    g_param_spec_int ("fixed-width",
 285                                                      P_("Fixed Width"),
 286                                                      P_("Current fixed width of the column"),
 287                                                      1,
 288                                                      G_MAXINT,
 289                                                      1, /* not useful */
 290                                                      GTK_PARAM_READWRITE));
 291
 292   g_object_class_install_property (object_class,
 293                                    PROP_MIN_WIDTH,
 294                                    g_param_spec_int ("min-width",
 295                                                      P_("Minimum Width"),
 296                                                      P_("Minimum allowed width of the column"),
 297                                                      -1,
 298                                                      G_MAXINT,
 299                                                      -1,
 300                                                      GTK_PARAM_READWRITE));
 301
 302   g_object_class_install_property (object_class,
 303                                    PROP_MAX_WIDTH,
 304                                    g_param_spec_int ("max-width",
 305                                                      P_("Maximum Width"),
 306                                                      P_("Maximum allowed width of the column"),
 307                                                      -1,
 308                                                      G_MAXINT,
 309                                                      -1,
 310                                                      GTK_PARAM_READWRITE));
 311
 312   g_object_class_install_property (object_class,
 313                                    PROP_TITLE,
 314                                    g_param_spec_string ("title",
 315                                                         P_("Title"),
 316                                                         P_("Title to appear in column header"),
 317                                                         "",
 318                                                         GTK_PARAM_READWRITE));
 319
 320   g_object_class_install_property (object_class,
 321                                    PROP_EXPAND,
 322                                    g_param_spec_boolean ("expand",
 323                                                          P_("Expand"),
 324                                                          P_("Column gets share of extra width allocated to the widget"),
 325                                                          FALSE,
 326                                                          GTK_PARAM_READWRITE));
 327
 328   g_object_class_install_property (object_class,
 329                                    PROP_CLICKABLE,
 330                                    g_param_spec_boolean ("clickable",
 331                                                         P_("Clickable"),
 332                                                         P_("Whether the header can be clicked"),
 333                                                          FALSE,
 334                                                          GTK_PARAM_READWRITE));
 335
 336
 337   g_object_class_install_property (object_class,
 338                                    PROP_WIDGET,
 339                                    g_param_spec_object ("widget",
 340                                                         P_("Widget"),
 341                                                         P_("Widget to put in column header button instead of column title"),
 342                                                         GTK_TYPE_WIDGET,
 343                                                         GTK_PARAM_READWRITE));
 344
 345   g_object_class_install_property (object_class,
 346                                    PROP_ALIGNMENT,
 347                                    g_param_spec_float ("alignment",
 348                                                        P_("Alignment"),
 349                                                        P_("X Alignment of the column header text or widget"),
 350                                                        0.0,
 351                                                        1.0,
 352                                                        0.0,
 353                                                        GTK_PARAM_READWRITE));
 354
 355   g_object_class_install_property (object_class,
 356                                    PROP_REORDERABLE,
 357                                    g_param_spec_boolean ("reorderable",
 358                                                          P_("Reorderable"),
 359                                                          P_("Whether the column can be reordered around the headers"),
 360                                                          FALSE,
 361                                                          GTK_PARAM_READWRITE));
 362
 363   g_object_class_install_property (object_class,
 364                                    PROP_SORT_INDICATOR,
 365                                    g_param_spec_boolean ("sort-indicator",
 366                                                         P_("Sort indicator"),
 367                                                         P_("Whether to show a sort indicator"),
 368                                                          FALSE,
 369                                                          GTK_PARAM_READWRITE));
 370
 371   g_object_class_install_property (object_class,
 372                                    PROP_SORT_ORDER,
 373                                    g_param_spec_enum ("sort-order",
 374                                                       P_("Sort order"),
 375                                                       P_("Sort direction the sort indicator should indicate"),
 376                                                       GTK_TYPE_SORT_TYPE,
 377                                                       GTK_SORT_ASCENDING,
 378                                                       GTK_PARAM_READWRITE));
 379
 380   /**
 381    * GtkTreeViewColumn:sort-column-id:
 382    *
 383    * Logical sort column ID this column sorts on when selected for sorting. Setting the sort column ID makes the column header
 384    * clickable. Set to %-1 to make the column unsortable.
 385    *
 386    * Since: 2.18
 387    **/
 388   g_object_class_install_property (object_class,
 389                                    PROP_SORT_COLUMN_ID,
 390                                    g_param_spec_int ("sort-column-id",
 391                                                      P_("Sort column ID"),
 392                                                      P_("Logical sort column ID this column sorts on when selected for sorting"),
 393                                                      -1,
 394                                                      G_MAXINT,
 395                                                      -1,
 396                                                      GTK_PARAM_READWRITE));
 397
 398   /**
 399    * GtkTreeViewColumn:cell-area:
 400    *
 401    * The #GtkCellArea used to layout cell renderers for this column.
 402    *
 403    * Since: 3.0
 404    */
 405   g_object_class_install_property (object_class,
 406                                    PROP_CELL_AREA,
 407                                    g_param_spec_object ("cell-area",
 408                                                         P_("Cell Area"),
 409                                                         P_("The GtkCellArea used to layout cells"),
 410                                                         GTK_TYPE_CELL_AREA,
 411                                                         GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
 412
 413   g_type_class_add_private (class, sizeof (GtkTreeViewColumnPrivate));
 414 }
 415
 416 static void
 417 gtk_tree_view_column_custom_tag_end (GtkBuildable *buildable,
 418                                      GtkBuilder   *builder,
 419                                      GObject      *child,
 420                                      const gchar  *tagname,
 421                                      gpointer     *data)
 422 {
 423   /* Just ignore the boolean return from here */
 424   _gtk_cell_layout_buildable_custom_tag_end (buildable, builder, child, tagname, data);
 425 }
 426
 427 static void
 428 gtk_tree_view_column_buildable_init (GtkBuildableIface *iface)
 429 {
 430   iface->add_child = _gtk_cell_layout_buildable_add_child;
 431   iface->custom_tag_start = _gtk_cell_layout_buildable_custom_tag_start;
 432   iface->custom_tag_end = gtk_tree_view_column_custom_tag_end;
 433 }
 434
 435 static void
 436 gtk_tree_view_column_cell_layout_init (GtkCellLayoutIface *iface)
 437 {
 438   iface->get_area = gtk_tree_view_column_cell_layout_get_area;
 439 }
 440
 441 static void
 442 gtk_tree_view_column_init (GtkTreeViewColumn *tree_column)
 443 {
 444   GtkTreeViewColumnPrivate *priv;
 445
 446   tree_column->priv = G_TYPE_INSTANCE_GET_PRIVATE (tree_column,
 447                                                    GTK_TYPE_TREE_VIEW_COLUMN,
 448                                                    GtkTreeViewColumnPrivate);
 449   priv = tree_column->priv;
 450
 451   priv->button = NULL;
 452   priv->xalign = 0.0;
 453   priv->width = 0;
 454   priv->requested_width = -1;
 455   priv->min_width = -1;
 456   priv->max_width = -1;
 457   priv->resized_width = 0;
 458   priv->column_type = GTK_TREE_VIEW_COLUMN_GROW_ONLY;
 459   priv->visible = TRUE;
 460   priv->resizable = FALSE;
 461   priv->expand = FALSE;
 462   priv->clickable = FALSE;
 463   priv->dirty = TRUE;
 464   priv->sort_order = GTK_SORT_ASCENDING;
 465   priv->show_sort_indicator = FALSE;
 466   priv->property_changed_signal = 0;
 467   priv->sort_clicked_signal = 0;
 468   priv->sort_column_changed_signal = 0;
 469   priv->sort_column_id = -1;
 470   priv->reorderable = FALSE;
 471   priv->maybe_reordered = FALSE;
 472   priv->fixed_width = 1;
 473   priv->use_resized_width = FALSE;
 474   priv->title = g_strdup ("");
 475 }
 476
 477 static GObject *
 478 gtk_tree_view_column_constructor (GType                    type,
 479                                   guint                    n_construct_properties,
 480                                   GObjectConstructParam   *construct_properties)
 481 {
 482   GtkTreeViewColumn        *tree_column;
 483   GtkTreeViewColumnPrivate *priv;
 484   GObject                  *object;
 485
 486   object = G_OBJECT_CLASS (gtk_tree_view_column_parent_class)->constructor
 487     (type, n_construct_properties, construct_properties);
 488
 489   tree_column = (GtkTreeViewColumn *) object;
 490   priv        = tree_column->priv;
 491
 492   if (!priv->cell_area)
 493     {
 494       priv->cell_area = gtk_cell_area_box_new ();
 495       g_object_ref_sink (priv->cell_area);
 496     }
 497
 498   gtk_cell_area_set_style_detail (priv->cell_area, "treeview");
 499
 500   priv->add_editable_signal =
 501     g_signal_connect (priv->cell_area, "add-editable",
 502                       G_CALLBACK (gtk_tree_view_column_add_editable_callback),
 503                       tree_column);
 504   priv->remove_editable_signal =
 505     g_signal_connect (priv->cell_area, "remove-editable",
 506                       G_CALLBACK (gtk_tree_view_column_remove_editable_callback),
 507                       tree_column);
 508
 509   priv->cell_area_context = gtk_cell_area_create_context (priv->cell_area);
 510
 511   priv->context_changed_signal =
 512     g_signal_connect (priv->cell_area_context, "notify",
 513                       G_CALLBACK (gtk_tree_view_column_context_changed), tree_column);
 514
 515   return object;
 516 }
 517
 518 static void
 519 gtk_tree_view_column_dispose (GObject *object)
 520 {
 521   GtkTreeViewColumn        *tree_column = (GtkTreeViewColumn *) object;
 522   GtkTreeViewColumnPrivate *priv        = tree_column->priv;
 523
 524   if (priv->cell_area_context)
 525     {
 526       g_signal_handler_disconnect (priv->cell_area_context,
 527                                    priv->context_changed_signal);
 528
 529       g_object_unref (priv->cell_area_context);
 530
 531       priv->cell_area_context = NULL;
 532       priv->context_changed_signal = 0;
 533     }
 534
 535   if (priv->cell_area)
 536     {
 537       g_signal_handler_disconnect (priv->cell_area,
 538                                    priv->add_editable_signal);
 539       g_signal_handler_disconnect (priv->cell_area,
 540                                    priv->remove_editable_signal);
 541
 542       g_object_unref (priv->cell_area);
 543       priv->cell_area = NULL;
 544       priv->add_editable_signal = 0;
 545       priv->remove_editable_signal = 0;
 546     }
 547
 548   if (priv->child)
 549     {
 550       g_object_unref (priv->child);
 551       priv->child = NULL;
 552     }
 553
 554   G_OBJECT_CLASS (gtk_tree_view_column_parent_class)->dispose (object);
 555 }
 556
 557 static void
 558 gtk_tree_view_column_finalize (GObject *object)
 559 {
 560   GtkTreeViewColumn        *tree_column = (GtkTreeViewColumn *) object;
 561   GtkTreeViewColumnPrivate *priv        = tree_column->priv;
 562
 563   g_free (priv->title);
 564
 565   G_OBJECT_CLASS (gtk_tree_view_column_parent_class)->finalize (object);
 566 }
 567
 568 static void
 569 gtk_tree_view_column_set_property (GObject         *object,
 570                                    guint            prop_id,
 571                                    const GValue    *value,
 572                                    GParamSpec      *pspec)
 573 {
 574   GtkTreeViewColumn *tree_column;
 575   GtkCellArea       *area;
 576
 577   tree_column = GTK_TREE_VIEW_COLUMN (object);
 578
 579   switch (prop_id)
 580     {
 581     case PROP_VISIBLE:
 582       gtk_tree_view_column_set_visible (tree_column,
 583                                         g_value_get_boolean (value));
 584       break;
 585
 586     case PROP_RESIZABLE:
 587       gtk_tree_view_column_set_resizable (tree_column,
 588                                           g_value_get_boolean (value));
 589       break;
 590
 591     case PROP_SIZING:
 592       gtk_tree_view_column_set_sizing (tree_column,
 593                                        g_value_get_enum (value));
 594       break;
 595
 596     case PROP_FIXED_WIDTH:
 597       gtk_tree_view_column_set_fixed_width (tree_column,
 598                                             g_value_get_int (value));
 599       break;
 600
 601     case PROP_MIN_WIDTH:
 602       gtk_tree_view_column_set_min_width (tree_column,
 603                                           g_value_get_int (value));
 604       break;
 605
 606     case PROP_MAX_WIDTH:
 607       gtk_tree_view_column_set_max_width (tree_column,
 608                                           g_value_get_int (value));
 609       break;
 610
 611     case PROP_SPACING:
 612       gtk_tree_view_column_set_spacing (tree_column,
 613                                         g_value_get_int (value));
 614       break;
 615
 616     case PROP_TITLE:
 617       gtk_tree_view_column_set_title (tree_column,
 618                                       g_value_get_string (value));
 619       break;
 620
 621     case PROP_EXPAND:
 622       gtk_tree_view_column_set_expand (tree_column,
 623                                        g_value_get_boolean (value));
 624       break;
 625
 626     case PROP_CLICKABLE:
 627       gtk_tree_view_column_set_clickable (tree_column,
 628                                           g_value_get_boolean (value));
 629       break;
 630
 631     case PROP_WIDGET:
 632       gtk_tree_view_column_set_widget (tree_column,
 633                                        (GtkWidget*) g_value_get_object (value));
 634       break;
 635
 636     case PROP_ALIGNMENT:
 637       gtk_tree_view_column_set_alignment (tree_column,
 638                                           g_value_get_float (value));
 639       break;
 640
 641     case PROP_REORDERABLE:
 642       gtk_tree_view_column_set_reorderable (tree_column,
 643                                             g_value_get_boolean (value));
 644       break;
 645
 646     case PROP_SORT_INDICATOR:
 647       gtk_tree_view_column_set_sort_indicator (tree_column,
 648                                                g_value_get_boolean (value));
 649       break;
 650
 651     case PROP_SORT_ORDER:
 652       gtk_tree_view_column_set_sort_order (tree_column,
 653                                            g_value_get_enum (value));
 654       break;
 655
 656     case PROP_SORT_COLUMN_ID:
 657       gtk_tree_view_column_set_sort_column_id (tree_column,
 658                                                g_value_get_int (value));
 659       break;
 660
 661     case PROP_CELL_AREA:
 662       /* Construct-only, can only be assigned once */
 663       area = g_value_get_object (value);
 664
 665       if (area)
 666         tree_column->priv->cell_area = g_object_ref_sink (area);
 667       break;
 668
 669     default:
 670       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 671       break;
 672     }
 673 }
 674
 675 static void
 676 gtk_tree_view_column_get_property (GObject         *object,
 677                                    guint            prop_id,
 678                                    GValue          *value,
 679                                    GParamSpec      *pspec)
 680 {
 681   GtkTreeViewColumn *tree_column;
 682
 683   tree_column = GTK_TREE_VIEW_COLUMN (object);
 684
 685   switch (prop_id)
 686     {
 687     case PROP_VISIBLE:
 688       g_value_set_boolean (value,
 689                            gtk_tree_view_column_get_visible (tree_column));
 690       break;
 691
 692     case PROP_RESIZABLE:
 693       g_value_set_boolean (value,
 694                            gtk_tree_view_column_get_resizable (tree_column));
 695       break;
 696
 697     case PROP_WIDTH:
 698       g_value_set_int (value,
 699                        gtk_tree_view_column_get_width (tree_column));
 700       break;
 701
 702     case PROP_SPACING:
 703       g_value_set_int (value,
 704                        gtk_tree_view_column_get_spacing (tree_column));
 705       break;
 706
 707     case PROP_SIZING:
 708       g_value_set_enum (value,
 709                         gtk_tree_view_column_get_sizing (tree_column));
 710       break;
 711
 712     case PROP_FIXED_WIDTH:
 713       g_value_set_int (value,
 714                        gtk_tree_view_column_get_fixed_width (tree_column));
 715       break;
 716
 717     case PROP_MIN_WIDTH:
 718       g_value_set_int (value,
 719                        gtk_tree_view_column_get_min_width (tree_column));
 720       break;
 721
 722     case PROP_MAX_WIDTH:
 723       g_value_set_int (value,
 724                        gtk_tree_view_column_get_max_width (tree_column));
 725       break;
 726
 727     case PROP_TITLE:
 728       g_value_set_string (value,
 729                           gtk_tree_view_column_get_title (tree_column));
 730       break;
 731
 732     case PROP_EXPAND:
 733       g_value_set_boolean (value,
 734                           gtk_tree_view_column_get_expand (tree_column));
 735       break;
 736
 737     case PROP_CLICKABLE:
 738       g_value_set_boolean (value,
 739                            gtk_tree_view_column_get_clickable (tree_column));
 740       break;
 741
 742     case PROP_WIDGET:
 743       g_value_set_object (value,
 744                           (GObject*) gtk_tree_view_column_get_widget (tree_column));
 745       break;
 746
 747     case PROP_ALIGNMENT:
 748       g_value_set_float (value,
 749                          gtk_tree_view_column_get_alignment (tree_column));
 750       break;
 751
 752     case PROP_REORDERABLE:
 753       g_value_set_boolean (value,
 754                            gtk_tree_view_column_get_reorderable (tree_column));
 755       break;
 756
 757     case PROP_SORT_INDICATOR:
 758       g_value_set_boolean (value,
 759                            gtk_tree_view_column_get_sort_indicator (tree_column));
 760       break;
 761
 762     case PROP_SORT_ORDER:
 763       g_value_set_enum (value,
 764                         gtk_tree_view_column_get_sort_order (tree_column));
 765       break;
 766
 767     case PROP_SORT_COLUMN_ID:
 768       g_value_set_int (value,
 769                        gtk_tree_view_column_get_sort_column_id (tree_column));
 770       break;
 771
 772     case PROP_CELL_AREA:
 773       g_value_set_object (value, tree_column->priv->cell_area);
 774       break;
 775
 776     default:
 777       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 778       break;
 779     }
 780 }
 781
 782 /* Implementation of GtkCellLayout interface
 783  */
 784 static GtkCellArea *
 785 gtk_tree_view_column_cell_layout_get_area (GtkCellLayout   *cell_layout)
 786 {
 787   GtkTreeViewColumn        *column = GTK_TREE_VIEW_COLUMN (cell_layout);
 788   GtkTreeViewColumnPrivate *priv   = column->priv;
 789
 790   return priv->cell_area;
 791 }
 792
 793 /* Button handling code
 794  */
 795 static void
 796 gtk_tree_view_column_create_button (GtkTreeViewColumn *tree_column)
 797 {
 798   GtkTreeViewColumnPrivate *priv = tree_column->priv;
 799   GtkTreeView *tree_view;
 800   GtkWidget *child;
 801   GtkWidget *hbox;
 802
 803   tree_view = (GtkTreeView *) priv->tree_view;
 804
 805   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
 806   g_return_if_fail (priv->button == NULL);
 807
 808   gtk_widget_push_composite_child ();
 809   priv->button = gtk_button_new ();
 810   gtk_widget_add_events (priv->button, GDK_POINTER_MOTION_MASK);
 811   gtk_widget_pop_composite_child ();
 812
 813   /* make sure we own a reference to it as well. */
 814   if (_gtk_tree_view_get_header_window (tree_view))
 815     gtk_widget_set_parent_window (priv->button, _gtk_tree_view_get_header_window (tree_view));
 816
 817   gtk_widget_set_parent (priv->button, GTK_WIDGET (tree_view));
 818
 819   g_signal_connect (priv->button, "event",
 820                     G_CALLBACK (gtk_tree_view_column_button_event),
 821                     tree_column);
 822   g_signal_connect (priv->button, "clicked",
 823                     G_CALLBACK (gtk_tree_view_column_button_clicked),
 824                     tree_column);
 825
 826   priv->alignment = gtk_alignment_new (priv->xalign, 0.5, 0.0, 0.0);
 827
 828   hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 2);
 829   priv->arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_IN);
 830
 831   if (priv->child)
 832     child = priv->child;
 833   else
 834     {
 835       child = gtk_label_new (priv->title);
 836       gtk_widget_show (child);
 837     }
 838
 839   g_signal_connect (child, "mnemonic-activate",
 840                     G_CALLBACK (gtk_tree_view_column_mnemonic_activate),
 841                     tree_column);
 842
 843   if (priv->xalign <= 0.5)
 844     gtk_box_pack_end (GTK_BOX (hbox), priv->arrow, FALSE, FALSE, 0);
 845   else
 846     gtk_box_pack_start (GTK_BOX (hbox), priv->arrow, FALSE, FALSE, 0);
 847
 848   gtk_box_pack_start (GTK_BOX (hbox), priv->alignment, TRUE, TRUE, 0);
 849
 850   gtk_container_add (GTK_CONTAINER (priv->alignment), child);
 851   gtk_container_add (GTK_CONTAINER (priv->button), hbox);
 852
 853   gtk_widget_show (hbox);
 854   gtk_widget_show (priv->alignment);
 855   gtk_tree_view_column_update_button (tree_column);
 856 }
 857
 858 static void
 859 gtk_tree_view_column_update_button (GtkTreeViewColumn *tree_column)
 860 {
 861   GtkTreeViewColumnPrivate *priv = tree_column->priv;
 862   gint sort_column_id = -1;
 863   GtkWidget *hbox;
 864   GtkWidget *alignment;
 865   GtkWidget *arrow;
 866   GtkWidget *current_child;
 867   GtkArrowType arrow_type = GTK_ARROW_NONE;
 868   GtkTreeModel *model;
 869
 870   if (priv->tree_view)
 871     model = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
 872   else
 873     model = NULL;
 874
 875   /* Create a button if necessary */
 876   if (priv->visible &&
 877       priv->button == NULL &&
 878       priv->tree_view &&
 879       gtk_widget_get_realized (priv->tree_view))
 880     gtk_tree_view_column_create_button (tree_column);
 881
 882   if (! priv->button)
 883     return;
 884
 885   hbox = gtk_bin_get_child (GTK_BIN (priv->button));
 886   alignment = priv->alignment;
 887   arrow = priv->arrow;
 888   current_child = gtk_bin_get_child (GTK_BIN (alignment));
 889
 890   /* Set up the actual button */
 891   gtk_alignment_set (GTK_ALIGNMENT (alignment), priv->xalign,
 892                      0.5, 0.0, 0.0);
 893
 894   if (priv->child)
 895     {
 896       if (current_child != priv->child)
 897         {
 898           gtk_container_remove (GTK_CONTAINER (alignment),
 899                                 current_child);
 900           gtk_container_add (GTK_CONTAINER (alignment),
 901                              priv->child);
 902         }
 903     }
 904   else
 905     {
 906       if (current_child == NULL)
 907         {
 908           current_child = gtk_label_new (NULL);
 909           gtk_widget_show (current_child);
 910           gtk_container_add (GTK_CONTAINER (alignment),
 911                              current_child);
 912         }
 913
 914       g_return_if_fail (GTK_IS_LABEL (current_child));
 915
 916       if (priv->title)
 917         gtk_label_set_text_with_mnemonic (GTK_LABEL (current_child),
 918                                           priv->title);
 919       else
 920         gtk_label_set_text_with_mnemonic (GTK_LABEL (current_child),
 921                                           "");
 922     }
 923
 924   if (GTK_IS_TREE_SORTABLE (model))
 925     gtk_tree_sortable_get_sort_column_id (GTK_TREE_SORTABLE (model),
 926                                           &sort_column_id,
 927                                           NULL);
 928
 929   if (priv->show_sort_indicator)
 930     {
 931       gboolean alternative;
 932
 933       g_object_get (gtk_widget_get_settings (priv->tree_view),
 934                     "gtk-alternative-sort-arrows", &alternative,
 935                     NULL);
 936
 937       switch (priv->sort_order)
 938         {
 939           case GTK_SORT_ASCENDING:
 940             arrow_type = alternative ? GTK_ARROW_UP : GTK_ARROW_DOWN;
 941             break;
 942
 943           case GTK_SORT_DESCENDING:
 944             arrow_type = alternative ? GTK_ARROW_DOWN : GTK_ARROW_UP;
 945             break;
 946
 947           default:
 948             g_warning (G_STRLOC": bad sort order");
 949             break;
 950         }
 951     }
 952
 953   gtk_arrow_set (GTK_ARROW (arrow),
 954                  arrow_type,
 955                  GTK_SHADOW_IN);
 956
 957   /* Put arrow on the right if the text is left-or-center justified, and on the
 958    * left otherwise; do this by packing boxes, so flipping text direction will
 959    * reverse things
 960    */
 961   g_object_ref (arrow);
 962   gtk_container_remove (GTK_CONTAINER (hbox), arrow);
 963
 964   if (priv->xalign <= 0.5)
 965     {
 966       gtk_box_pack_end (GTK_BOX (hbox), arrow, FALSE, FALSE, 0);
 967     }
 968   else
 969     {
 970       gtk_box_pack_start (GTK_BOX (hbox), arrow, FALSE, FALSE, 0);
 971       /* move it to the front */
 972       gtk_box_reorder_child (GTK_BOX (hbox), arrow, 0);
 973     }
 974   g_object_unref (arrow);
 975
 976   if (priv->show_sort_indicator
 977       || (GTK_IS_TREE_SORTABLE (model) && priv->sort_column_id >= 0))
 978     gtk_widget_show (arrow);
 979   else
 980     gtk_widget_hide (arrow);
 981
 982   /* It's always safe to hide the button.  It isn't always safe to show it, as
 983    * if you show it before it's realized, it'll get the wrong window. */
 984   if (priv->button &&
 985       priv->tree_view != NULL &&
 986       gtk_widget_get_realized (priv->tree_view))
 987     {
 988       if (priv->visible)
 989         {
 990           gtk_widget_show_now (priv->button);
 991           if (priv->window)
 992             {
 993               if (priv->resizable)
 994                 {
 995                   gdk_window_show (priv->window);
 996                   gdk_window_raise (priv->window);
 997                 }
 998               else
 999                 {
1000                   gdk_window_hide (priv->window);
1001                 }
1002             }
1003         }
1004       else
1005         {
1006           gtk_widget_hide (priv->button);
1007           if (priv->window)
1008             gdk_window_hide (priv->window);
1009         }
1010     }
1011
1012   if (priv->reorderable || priv->clickable)
1013     {
1014       gtk_widget_set_can_focus (priv->button, TRUE);
1015     }
1016   else
1017     {
1018       gtk_widget_set_can_focus (priv->button, FALSE);
1019       if (gtk_widget_has_focus (priv->button))
1020         {
1021           GtkWidget *toplevel = gtk_widget_get_toplevel (priv->tree_view);
1022           if (gtk_widget_is_toplevel (toplevel))
1023             {
1024               gtk_window_set_focus (GTK_WINDOW (toplevel), NULL);
1025             }
1026         }
1027     }
1028   /* Queue a resize on the assumption that we always want to catch all changes
1029    * and columns don't change all that often.
1030    */
1031   if (gtk_widget_get_realized (priv->tree_view))
1032      gtk_widget_queue_resize (priv->tree_view);
1033
1034 }
1035
1036 /* Button signal handlers
1037  */
1038
1039 static gint
1040 gtk_tree_view_column_button_event (GtkWidget *widget,
1041                                    GdkEvent  *event,
1042                                    gpointer   data)
1043 {
1044   GtkTreeViewColumn        *column = (GtkTreeViewColumn *) data;
1045   GtkTreeViewColumnPrivate *priv   = column->priv;
1046
1047   g_return_val_if_fail (event != NULL, FALSE);
1048
1049   if (event->type == GDK_BUTTON_PRESS &&
1050       priv->reorderable &&
1051       ((GdkEventButton *)event)->button == 1)
1052     {
1053       priv->maybe_reordered = TRUE;
1054       gdk_window_get_pointer (gtk_button_get_event_window (GTK_BUTTON (widget)),
1055                               &priv->drag_x,
1056                               &priv->drag_y,
1057                               NULL);
1058       gtk_widget_grab_focus (widget);
1059     }
1060
1061   if (event->type == GDK_BUTTON_RELEASE ||
1062       event->type == GDK_LEAVE_NOTIFY)
1063     priv->maybe_reordered = FALSE;
1064
1065   if (event->type == GDK_MOTION_NOTIFY &&
1066       priv->maybe_reordered &&
1067       (gtk_drag_check_threshold (widget,
1068                                  priv->drag_x,
1069                                  priv->drag_y,
1070                                  (gint) ((GdkEventMotion *)event)->x,
1071                                  (gint) ((GdkEventMotion *)event)->y)))
1072     {
1073       priv->maybe_reordered = FALSE;
1074       _gtk_tree_view_column_start_drag (GTK_TREE_VIEW (priv->tree_view), column,
1075                                         event->motion.device);
1076       return TRUE;
1077     }
1078
1079   if (priv->clickable == FALSE)
1080     {
1081       switch (event->type)
1082         {
1083         case GDK_BUTTON_PRESS:
1084         case GDK_2BUTTON_PRESS:
1085         case GDK_3BUTTON_PRESS:
1086         case GDK_MOTION_NOTIFY:
1087         case GDK_BUTTON_RELEASE:
1088         case GDK_ENTER_NOTIFY:
1089         case GDK_LEAVE_NOTIFY:
1090           return TRUE;
1091         default:
1092           return FALSE;
1093         }
1094     }
1095   return FALSE;
1096 }
1097
1098
1099 static void
1100 gtk_tree_view_column_button_clicked (GtkWidget *widget, gpointer data)
1101 {
1102   g_signal_emit_by_name (data, "clicked");
1103 }
1104
1105 static gboolean
1106 gtk_tree_view_column_mnemonic_activate (GtkWidget *widget,
1107                                         gboolean   group_cycling,
1108                                         gpointer   data)
1109 {
1110   GtkTreeViewColumn        *column = (GtkTreeViewColumn *)data;
1111   GtkTreeViewColumnPrivate *priv   = column->priv;
1112
1113   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), FALSE);
1114
1115   _gtk_tree_view_set_focus_column (GTK_TREE_VIEW (priv->tree_view), column);
1116
1117   if (priv->clickable)
1118     gtk_button_clicked (GTK_BUTTON (priv->button));
1119   else if (gtk_widget_get_can_focus (priv->button))
1120     gtk_widget_grab_focus (priv->button);
1121   else
1122     gtk_widget_grab_focus (priv->tree_view);
1123
1124   return TRUE;
1125 }
1126
1127 static void
1128 gtk_tree_view_model_sort_column_changed (GtkTreeSortable   *sortable,
1129                                          GtkTreeViewColumn *column)
1130 {
1131   GtkTreeViewColumnPrivate *priv = column->priv;
1132   gint sort_column_id;
1133   GtkSortType order;
1134
1135   if (gtk_tree_sortable_get_sort_column_id (sortable,
1136                                             &sort_column_id,
1137                                             &order))
1138     {
1139       if (sort_column_id == priv->sort_column_id)
1140         {
1141           gtk_tree_view_column_set_sort_indicator (column, TRUE);
1142           gtk_tree_view_column_set_sort_order (column, order);
1143         }
1144       else
1145         {
1146           gtk_tree_view_column_set_sort_indicator (column, FALSE);
1147         }
1148     }
1149   else
1150     {
1151       gtk_tree_view_column_set_sort_indicator (column, FALSE);
1152     }
1153 }
1154
1155 static void
1156 gtk_tree_view_column_sort (GtkTreeViewColumn *tree_column,
1157                            gpointer           data)
1158 {
1159   GtkTreeViewColumnPrivate *priv = tree_column->priv;
1160   GtkTreeModel *model;
1161   GtkTreeSortable *sortable;
1162   gint sort_column_id;
1163   GtkSortType order;
1164   gboolean has_sort_column;
1165   gboolean has_default_sort_func;
1166
1167   g_return_if_fail (priv->tree_view != NULL);
1168
1169   model    = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
1170   sortable = GTK_TREE_SORTABLE (model);
1171
1172   has_sort_column =
1173     gtk_tree_sortable_get_sort_column_id (sortable,
1174                                           &sort_column_id,
1175                                           &order);
1176   has_default_sort_func =
1177     gtk_tree_sortable_has_default_sort_func (sortable);
1178
1179   if (has_sort_column &&
1180       sort_column_id == priv->sort_column_id)
1181     {
1182       if (order == GTK_SORT_ASCENDING)
1183         gtk_tree_sortable_set_sort_column_id (sortable,
1184                                               priv->sort_column_id,
1185                                               GTK_SORT_DESCENDING);
1186       else if (order == GTK_SORT_DESCENDING && has_default_sort_func)
1187         gtk_tree_sortable_set_sort_column_id (sortable,
1188                                               GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID,
1189                                               GTK_SORT_ASCENDING);
1190       else
1191         gtk_tree_sortable_set_sort_column_id (sortable,
1192                                               priv->sort_column_id,
1193                                               GTK_SORT_ASCENDING);
1194     }
1195   else
1196     {
1197       gtk_tree_sortable_set_sort_column_id (sortable,
1198                                             priv->sort_column_id,
1199                                             GTK_SORT_ASCENDING);
1200     }
1201 }
1202
1203 static void
1204 gtk_tree_view_column_setup_sort_column_id_callback (GtkTreeViewColumn *tree_column)
1205 {
1206   GtkTreeViewColumnPrivate *priv = tree_column->priv;
1207   GtkTreeModel *model;
1208
1209   if (priv->tree_view == NULL)
1210     return;
1211
1212   model = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
1213
1214   if (model == NULL)
1215     return;
1216
1217   if (GTK_IS_TREE_SORTABLE (model) &&
1218       priv->sort_column_id != -1)
1219     {
1220       gint real_sort_column_id;
1221       GtkSortType real_order;
1222
1223       if (priv->sort_column_changed_signal == 0)
1224         priv->sort_column_changed_signal =
1225           g_signal_connect (model, "sort-column-changed",
1226                             G_CALLBACK (gtk_tree_view_model_sort_column_changed),
1227                             tree_column);
1228
1229       if (gtk_tree_sortable_get_sort_column_id (GTK_TREE_SORTABLE (model),
1230                                                 &real_sort_column_id,
1231                                                 &real_order) &&
1232           (real_sort_column_id == priv->sort_column_id))
1233         {
1234           gtk_tree_view_column_set_sort_indicator (tree_column, TRUE);
1235           gtk_tree_view_column_set_sort_order (tree_column, real_order);
1236         }
1237       else
1238         {
1239           gtk_tree_view_column_set_sort_indicator (tree_column, FALSE);
1240         }
1241    }
1242 }
1243
1244 static void
1245 gtk_tree_view_column_context_changed  (GtkCellAreaContext      *context,
1246                                        GParamSpec              *pspec,
1247                                        GtkTreeViewColumn       *tree_column)
1248 {
1249   if (!strcmp (pspec->name, "minimum-width") ||
1250       !strcmp (pspec->name, "natural-width") ||
1251       !strcmp (pspec->name, "minimum-height") ||
1252       !strcmp (pspec->name, "natural-height"))
1253     {
1254       /* XXX We want to do something specific if the size actually got cleared
1255        * or if it just grew a little bit because of a data change and we
1256        * are in GROW_ONLY mode.
1257        */
1258       _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
1259     }
1260 }
1261
1262 static void
1263 gtk_tree_view_column_add_editable_callback (GtkCellArea       *area,
1264                                             GtkCellRenderer   *renderer,
1265                                             GtkCellEditable   *edit_widget,
1266                                             GdkRectangle      *cell_area,
1267                                             const gchar       *path_string,
1268                                             gpointer           user_data)
1269 {
1270   GtkTreeViewColumn        *column = user_data;
1271   GtkTreeViewColumnPrivate *priv   = column->priv;
1272   GtkTreePath              *path;
1273
1274   if (priv->tree_view)
1275     {
1276       path = gtk_tree_path_new_from_string (path_string);
1277
1278       _gtk_tree_view_add_editable (GTK_TREE_VIEW (priv->tree_view),
1279                                    column,
1280                                    path,
1281                                    edit_widget,
1282                                    cell_area);
1283
1284       gtk_tree_path_free (path);
1285     }
1286 }
1287
1288 static void
1289 gtk_tree_view_column_remove_editable_callback (GtkCellArea     *area,
1290                                                GtkCellRenderer *renderer,
1291                                                GtkCellEditable *edit_widget,
1292                                                gpointer         user_data)
1293 {
1294   GtkTreeViewColumn        *column = user_data;
1295   GtkTreeViewColumnPrivate *priv   = column->priv;
1296
1297   if (priv->tree_view)
1298     _gtk_tree_view_remove_editable (GTK_TREE_VIEW (priv->tree_view),
1299                                     column,
1300                                     edit_widget);
1301 }
1302
1303 /* Exported Private Functions.
1304  * These should only be called by gtktreeview.c or gtktreeviewcolumn.c
1305  */
1306 void
1307 _gtk_tree_view_column_realize_button (GtkTreeViewColumn *column)
1308 {
1309   GtkTreeViewColumnPrivate *priv = column->priv;
1310   GtkAllocation allocation;
1311   GtkTreeView *tree_view;
1312   GdkWindowAttr attr;
1313   guint attributes_mask;
1314   gboolean rtl;
1315
1316   tree_view = (GtkTreeView *)priv->tree_view;
1317   rtl       = (gtk_widget_get_direction (priv->tree_view) == GTK_TEXT_DIR_RTL);
1318
1319   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
1320   g_return_if_fail (gtk_widget_get_realized (priv->tree_view));
1321   g_return_if_fail (priv->button != NULL);
1322
1323   g_return_if_fail (_gtk_tree_view_get_header_window (tree_view) != NULL);
1324   gtk_widget_set_parent_window (priv->button, _gtk_tree_view_get_header_window (tree_view));
1325
1326   if (priv->visible)
1327     gtk_widget_show (priv->button);
1328
1329   attr.window_type = GDK_WINDOW_CHILD;
1330   attr.wclass = GDK_INPUT_ONLY;
1331   attr.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
1332   attr.event_mask = gtk_widget_get_events (GTK_WIDGET (tree_view)) |
1333                     (GDK_BUTTON_PRESS_MASK |
1334                      GDK_BUTTON_RELEASE_MASK |
1335                      GDK_POINTER_MOTION_MASK |
1336                      GDK_POINTER_MOTION_HINT_MASK |
1337                      GDK_KEY_PRESS_MASK);
1338   attributes_mask = GDK_WA_CURSOR | GDK_WA_X | GDK_WA_Y;
1339   attr.cursor = gdk_cursor_new_for_display
1340     (gdk_window_get_display (_gtk_tree_view_get_header_window (tree_view)), GDK_SB_H_DOUBLE_ARROW);
1341   attr.y = 0;
1342   attr.width = TREE_VIEW_DRAG_WIDTH;
1343   attr.height = _gtk_tree_view_get_header_height (tree_view);
1344
1345   gtk_widget_get_allocation (priv->button, &allocation);
1346   attr.x       = (allocation.x + (rtl ? 0 : allocation.width)) - TREE_VIEW_DRAG_WIDTH / 2;
1347   priv->window = gdk_window_new (_gtk_tree_view_get_header_window (tree_view),
1348                                  &attr, attributes_mask);
1349   gdk_window_set_user_data (priv->window, tree_view);
1350
1351   gtk_tree_view_column_update_button (column);
1352
1353   gdk_cursor_unref (attr.cursor);
1354 }
1355
1356 void
1357 _gtk_tree_view_column_unrealize_button (GtkTreeViewColumn *column)
1358 {
1359   GtkTreeViewColumnPrivate *priv;
1360
1361   g_return_if_fail (column != NULL);
1362
1363   priv = column->priv;
1364   g_return_if_fail (priv->window != NULL);
1365
1366   gdk_window_set_user_data (priv->window, NULL);
1367   gdk_window_destroy (priv->window);
1368   priv->window = NULL;
1369 }
1370
1371 void
1372 _gtk_tree_view_column_unset_model (GtkTreeViewColumn *column,
1373                                    GtkTreeModel      *old_model)
1374 {
1375   GtkTreeViewColumnPrivate *priv = column->priv;
1376
1377   if (priv->sort_column_changed_signal)
1378     {
1379       g_signal_handler_disconnect (old_model,
1380                                    priv->sort_column_changed_signal);
1381       priv->sort_column_changed_signal = 0;
1382     }
1383   gtk_tree_view_column_set_sort_indicator (column, FALSE);
1384 }
1385
1386 void
1387 _gtk_tree_view_column_set_tree_view (GtkTreeViewColumn *column,
1388                                      GtkTreeView       *tree_view)
1389 {
1390   GtkTreeViewColumnPrivate *priv = column->priv;
1391
1392   g_assert (priv->tree_view == NULL);
1393
1394   priv->tree_view = GTK_WIDGET (tree_view);
1395   gtk_tree_view_column_create_button (column);
1396
1397   priv->property_changed_signal =
1398     g_signal_connect_swapped (tree_view,
1399                               "notify::model",
1400                               G_CALLBACK (gtk_tree_view_column_setup_sort_column_id_callback),
1401                               column);
1402
1403   gtk_tree_view_column_setup_sort_column_id_callback (column);
1404 }
1405
1406 void
1407 _gtk_tree_view_column_unset_tree_view (GtkTreeViewColumn *column)
1408 {
1409   GtkTreeViewColumnPrivate *priv = column->priv;
1410
1411   if (priv->tree_view && priv->button)
1412     {
1413       gtk_container_remove (GTK_CONTAINER (priv->tree_view), priv->button);
1414     }
1415   if (priv->property_changed_signal)
1416     {
1417       g_signal_handler_disconnect (priv->tree_view, priv->property_changed_signal);
1418       priv->property_changed_signal = 0;
1419     }
1420
1421   if (priv->sort_column_changed_signal)
1422     {
1423       g_signal_handler_disconnect (gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view)),
1424                                    priv->sort_column_changed_signal);
1425       priv->sort_column_changed_signal = 0;
1426     }
1427
1428   priv->tree_view = NULL;
1429   priv->button = NULL;
1430 }
1431
1432 gboolean
1433 _gtk_tree_view_column_has_editable_cell (GtkTreeViewColumn *column)
1434 {
1435   GtkTreeViewColumnPrivate *priv = column->priv;
1436   gboolean ret = FALSE;
1437   GList *list, *cells;
1438
1439   cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (priv->cell_area));
1440
1441   for (list = cells; list; list = list->next)
1442     {
1443       GtkCellRenderer *cell = list->data;
1444       GtkCellRendererMode mode;
1445
1446       g_object_get (cell, "mode", &mode, NULL);
1447
1448       if (mode == GTK_CELL_RENDERER_MODE_EDITABLE)
1449         {
1450           ret = TRUE;
1451           break;
1452         }
1453     }
1454
1455   g_list_free (cells);
1456
1457   return ret;
1458 }
1459
1460 /* gets cell being edited */
1461 GtkCellRenderer *
1462 _gtk_tree_view_column_get_edited_cell (GtkTreeViewColumn *column)
1463 {
1464   GtkTreeViewColumnPrivate *priv = column->priv;
1465
1466   return gtk_cell_area_get_edited_cell (priv->cell_area);
1467 }
1468
1469 GtkCellRenderer *
1470 _gtk_tree_view_column_get_cell_at_pos (GtkTreeViewColumn *column,
1471                                        gint               x)
1472 {
1473   GList *list;
1474   GList *cell;
1475   GtkCellRenderer *match = NULL;
1476   GtkTreeViewColumnPrivate *priv = column->priv;
1477
1478   list = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (column));
1479   for (cell = list; cell; cell = cell->next)
1480     {
1481       GdkRectangle zero_cell_area = { 0, };
1482       GdkRectangle allocation;
1483
1484       gtk_cell_area_get_cell_allocation (priv->cell_area,
1485                                          priv->cell_area_context,
1486                                          priv->tree_view,
1487                                          cell->data,
1488                                          &zero_cell_area,
1489                                          &allocation);
1490
1491       if (allocation.x <= x && x <= allocation.x + allocation.width)
1492         {
1493           match = cell->data;
1494           break;
1495         }
1496     }
1497
1498   g_list_free (list);
1499
1500   return match;
1501 }
1502
1503 /* Public Functions */
1504
1505
1506 /**
1507  * gtk_tree_view_column_new:
1508  *
1509  * Creates a new #GtkTreeViewColumn.
1510  *
1511  * Return value: A newly created #GtkTreeViewColumn.
1512  **/
1513 GtkTreeViewColumn *
1514 gtk_tree_view_column_new (void)
1515 {
1516   GtkTreeViewColumn *tree_column;
1517
1518   tree_column = g_object_new (GTK_TYPE_TREE_VIEW_COLUMN, NULL);
1519
1520   return tree_column;
1521 }
1522
1523 /**
1524  * gtk_tree_view_column_new_with_attributes:
1525  * @title: The title to set the header to.
1526  * @cell: The #GtkCellRenderer.
1527  * @Varargs: A %NULL-terminated list of attributes.
1528  *
1529  * Creates a new #GtkTreeViewColumn with a number of default values.  This is
1530  * equivalent to calling gtk_tree_view_column_set_title(),
1531  * gtk_tree_view_column_pack_start(), and
1532  * gtk_tree_view_column_set_attributes() on the newly created #GtkTreeViewColumn.
1533  *
1534  * Here's a simple example:
1535  * |[
1536  *  enum { TEXT_COLUMN, COLOR_COLUMN, N_COLUMNS };
1537  *  ...
1538  *  {
1539  *    GtkTreeViewColumn *column;
1540  *    GtkCellRenderer   *renderer = gtk_cell_renderer_text_new ();
1541  *
1542  *    column = gtk_tree_view_column_new_with_attributes ("Title",
1543  *                                                       renderer,
1544  *                                                       "text", TEXT_COLUMN,
1545  *                                                       "foreground", COLOR_COLUMN,
1546  *                                                       NULL);
1547  *  }
1548  * ]|
1549  *
1550  * Return value: A newly created #GtkTreeViewColumn.
1551  **/
1552 GtkTreeViewColumn *
1553 gtk_tree_view_column_new_with_attributes (const gchar     *title,
1554                                           GtkCellRenderer *cell,
1555                                           ...)
1556 {
1557   GtkTreeViewColumn *retval;
1558   va_list args;
1559
1560   retval = gtk_tree_view_column_new ();
1561
1562   gtk_tree_view_column_set_title (retval, title);
1563   gtk_tree_view_column_pack_start (retval, cell, TRUE);
1564
1565   va_start (args, cell);
1566   gtk_tree_view_column_set_attributesv (retval, cell, args);
1567   va_end (args);
1568
1569   return retval;
1570 }
1571
1572 /**
1573  * gtk_tree_view_column_pack_start:
1574  * @tree_column: A #GtkTreeViewColumn.
1575  * @cell: The #GtkCellRenderer.
1576  * @expand: %TRUE if @cell is to be given extra space allocated to @tree_column.
1577  *
1578  * Packs the @cell into the beginning of the column. If @expand is %FALSE, then
1579  * the @cell is allocated no more space than it needs. Any unused space is divided
1580  * evenly between cells for which @expand is %TRUE.
1581  **/
1582 void
1583 gtk_tree_view_column_pack_start (GtkTreeViewColumn *tree_column,
1584                                  GtkCellRenderer   *cell,
1585                                  gboolean           expand)
1586 {
1587   gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (tree_column), cell, expand);
1588 }
1589
1590 /**
1591  * gtk_tree_view_column_pack_end:
1592  * @tree_column: A #GtkTreeViewColumn.
1593  * @cell: The #GtkCellRenderer.
1594  * @expand: %TRUE if @cell is to be given extra space allocated to @tree_column.
1595  *
1596  * Adds the @cell to end of the column. If @expand is %FALSE, then the @cell
1597  * is allocated no more space than it needs. Any unused space is divided
1598  * evenly between cells for which @expand is %TRUE.
1599  **/
1600 void
1601 gtk_tree_view_column_pack_end (GtkTreeViewColumn  *tree_column,
1602                                GtkCellRenderer    *cell,
1603                                gboolean            expand)
1604 {
1605   gtk_cell_layout_pack_end (GTK_CELL_LAYOUT (tree_column), cell, expand);
1606 }
1607
1608 /**
1609  * gtk_tree_view_column_clear:
1610  * @tree_column: A #GtkTreeViewColumn
1611  *
1612  * Unsets all the mappings on all renderers on the @tree_column.
1613  **/
1614 void
1615 gtk_tree_view_column_clear (GtkTreeViewColumn *tree_column)
1616 {
1617   gtk_cell_layout_clear (GTK_CELL_LAYOUT (tree_column));
1618 }
1619
1620 /**
1621  * gtk_tree_view_column_add_attribute:
1622  * @tree_column: A #GtkTreeViewColumn.
1623  * @cell_renderer: the #GtkCellRenderer to set attributes on
1624  * @attribute: An attribute on the renderer
1625  * @column: The column position on the model to get the attribute from.
1626  *
1627  * Adds an attribute mapping to the list in @tree_column.  The @column is the
1628  * column of the model to get a value from, and the @attribute is the
1629  * parameter on @cell_renderer to be set from the value. So for example
1630  * if column 2 of the model contains strings, you could have the
1631  * "text" attribute of a #GtkCellRendererText get its values from
1632  * column 2.
1633  **/
1634 void
1635 gtk_tree_view_column_add_attribute (GtkTreeViewColumn *tree_column,
1636                                     GtkCellRenderer   *cell_renderer,
1637                                     const gchar       *attribute,
1638                                     gint               column)
1639 {
1640   gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (tree_column),
1641                                  cell_renderer, attribute, column);
1642 }
1643
1644 static void
1645 gtk_tree_view_column_set_attributesv (GtkTreeViewColumn *tree_column,
1646                                       GtkCellRenderer   *cell_renderer,
1647                                       va_list            args)
1648 {
1649   GtkTreeViewColumnPrivate *priv = tree_column->priv;
1650   gchar *attribute;
1651   gint column;
1652
1653   attribute = va_arg (args, gchar *);
1654
1655   gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (priv->cell_area),
1656                                     cell_renderer);
1657
1658   while (attribute != NULL)
1659     {
1660       column = va_arg (args, gint);
1661       gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (priv->cell_area),
1662                                      cell_renderer, attribute, column);
1663       attribute = va_arg (args, gchar *);
1664     }
1665 }
1666
1667 /**
1668  * gtk_tree_view_column_set_attributes:
1669  * @tree_column: A #GtkTreeViewColumn.
1670  * @cell_renderer: the #GtkCellRenderer we're setting the attributes of
1671  * @Varargs: A %NULL-terminated list of attributes.
1672  *
1673  * Sets the attributes in the list as the attributes of @tree_column.
1674  * The attributes should be in attribute/column order, as in
1675  * gtk_tree_view_column_add_attribute(). All existing attributes
1676  * are removed, and replaced with the new attributes.
1677  **/
1678 void
1679 gtk_tree_view_column_set_attributes (GtkTreeViewColumn *tree_column,
1680                                      GtkCellRenderer   *cell_renderer,
1681                                      ...)
1682 {
1683   va_list args;
1684
1685   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1686   g_return_if_fail (GTK_IS_CELL_RENDERER (cell_renderer));
1687
1688   va_start (args, cell_renderer);
1689   gtk_tree_view_column_set_attributesv (tree_column, cell_renderer, args);
1690   va_end (args);
1691 }
1692
1693
1694 /**
1695  * gtk_tree_view_column_set_cell_data_func:
1696  * @tree_column: A #GtkTreeViewColumn
1697  * @cell_renderer: A #GtkCellRenderer
1698  * @func: The #GtkTreeViewColumnFunc to use.
1699  * @func_data: The user data for @func.
1700  * @destroy: The destroy notification for @func_data
1701  *
1702  * Sets the #GtkTreeViewColumnFunc to use for the column.  This
1703  * function is used instead of the standard attributes mapping for
1704  * setting the column value, and should set the value of @tree_column's
1705  * cell renderer as appropriate.  @func may be %NULL to remove an
1706  * older one.
1707  **/
1708 void
1709 gtk_tree_view_column_set_cell_data_func (GtkTreeViewColumn   *tree_column,
1710                                          GtkCellRenderer     *cell_renderer,
1711                                          GtkTreeCellDataFunc  func,
1712                                          gpointer             func_data,
1713                                          GDestroyNotify       destroy)
1714 {
1715   gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (tree_column),
1716                                       cell_renderer,
1717                                       (GtkCellLayoutDataFunc)func,
1718                                       func_data, destroy);
1719 }
1720
1721
1722 /**
1723  * gtk_tree_view_column_clear_attributes:
1724  * @tree_column: a #GtkTreeViewColumn
1725  * @cell_renderer: a #GtkCellRenderer to clear the attribute mapping on.
1726  *
1727  * Clears all existing attributes previously set with
1728  * gtk_tree_view_column_set_attributes().
1729  **/
1730 void
1731 gtk_tree_view_column_clear_attributes (GtkTreeViewColumn *tree_column,
1732                                        GtkCellRenderer   *cell_renderer)
1733 {
1734   gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (tree_column),
1735                                     cell_renderer);
1736 }
1737
1738 /**
1739  * gtk_tree_view_column_set_spacing:
1740  * @tree_column: A #GtkTreeViewColumn.
1741  * @spacing: distance between cell renderers in pixels.
1742  *
1743  * Sets the spacing field of @tree_column, which is the number of pixels to
1744  * place between cell renderers packed into it.
1745  **/
1746 void
1747 gtk_tree_view_column_set_spacing (GtkTreeViewColumn *tree_column,
1748                                   gint               spacing)
1749 {
1750   GtkTreeViewColumnPrivate *priv;
1751
1752   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1753   g_return_if_fail (spacing >= 0);
1754
1755   priv = tree_column->priv;
1756
1757   gtk_cell_area_box_set_spacing (GTK_CELL_AREA_BOX (priv->cell_area),
1758                                  spacing);
1759   if (priv->tree_view)
1760     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
1761 }
1762
1763 /**
1764  * gtk_tree_view_column_get_spacing:
1765  * @tree_column: A #GtkTreeViewColumn.
1766  *
1767  * Returns the spacing of @tree_column.
1768  *
1769  * Return value: the spacing of @tree_column.
1770  **/
1771 gint
1772 gtk_tree_view_column_get_spacing (GtkTreeViewColumn *tree_column)
1773 {
1774   GtkTreeViewColumnPrivate *priv;
1775
1776   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
1777
1778   priv = tree_column->priv;
1779
1780   return gtk_cell_area_box_get_spacing (GTK_CELL_AREA_BOX (priv->cell_area));
1781 }
1782
1783 /* Options for manipulating the columns */
1784
1785 /**
1786  * gtk_tree_view_column_set_visible:
1787  * @tree_column: A #GtkTreeViewColumn.
1788  * @visible: %TRUE if the @tree_column is visible.
1789  *
1790  * Sets the visibility of @tree_column.
1791  **/
1792 void
1793 gtk_tree_view_column_set_visible (GtkTreeViewColumn *tree_column,
1794                                   gboolean           visible)
1795 {
1796   GtkTreeViewColumnPrivate *priv;
1797
1798   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1799
1800   priv    = tree_column->priv;
1801   visible = !! visible;
1802
1803   if (priv->visible == visible)
1804     return;
1805
1806   priv->visible = visible;
1807
1808   if (priv->visible)
1809     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
1810
1811   gtk_tree_view_column_update_button (tree_column);
1812   g_object_notify (G_OBJECT (tree_column), "visible");
1813 }
1814
1815 /**
1816  * gtk_tree_view_column_get_visible:
1817  * @tree_column: A #GtkTreeViewColumn.
1818  *
1819  * Returns %TRUE if @tree_column is visible.
1820  *
1821  * Return value: whether the column is visible or not.  If it is visible, then
1822  * the tree will show the column.
1823  **/
1824 gboolean
1825 gtk_tree_view_column_get_visible (GtkTreeViewColumn *tree_column)
1826 {
1827   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
1828
1829   return tree_column->priv->visible;
1830 }
1831
1832 /**
1833  * gtk_tree_view_column_set_resizable:
1834  * @tree_column: A #GtkTreeViewColumn
1835  * @resizable: %TRUE, if the column can be resized
1836  *
1837  * If @resizable is %TRUE, then the user can explicitly resize the column by
1838  * grabbing the outer edge of the column button.  If resizable is %TRUE and
1839  * sizing mode of the column is #GTK_TREE_VIEW_COLUMN_AUTOSIZE, then the sizing
1840  * mode is changed to #GTK_TREE_VIEW_COLUMN_GROW_ONLY.
1841  **/
1842 void
1843 gtk_tree_view_column_set_resizable (GtkTreeViewColumn *tree_column,
1844                                     gboolean           resizable)
1845 {
1846   GtkTreeViewColumnPrivate *priv;
1847
1848   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1849
1850   priv      = tree_column->priv;
1851   resizable = !! resizable;
1852
1853   if (priv->resizable == resizable)
1854     return;
1855
1856   priv->resizable = resizable;
1857
1858   if (resizable && priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
1859     gtk_tree_view_column_set_sizing (tree_column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
1860
1861   gtk_tree_view_column_update_button (tree_column);
1862
1863   g_object_notify (G_OBJECT (tree_column), "resizable");
1864 }
1865
1866 /**
1867  * gtk_tree_view_column_get_resizable:
1868  * @tree_column: A #GtkTreeViewColumn
1869  *
1870  * Returns %TRUE if the @tree_column can be resized by the end user.
1871  *
1872  * Return value: %TRUE, if the @tree_column can be resized.
1873  **/
1874 gboolean
1875 gtk_tree_view_column_get_resizable (GtkTreeViewColumn *tree_column)
1876 {
1877   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
1878
1879   return tree_column->priv->resizable;
1880 }
1881
1882
1883 /**
1884  * gtk_tree_view_column_set_sizing:
1885  * @tree_column: A #GtkTreeViewColumn.
1886  * @type: The #GtkTreeViewColumnSizing.
1887  *
1888  * Sets the growth behavior of @tree_column to @type.
1889  **/
1890 void
1891 gtk_tree_view_column_set_sizing (GtkTreeViewColumn       *tree_column,
1892                                  GtkTreeViewColumnSizing  type)
1893 {
1894   GtkTreeViewColumnPrivate *priv;
1895
1896   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1897
1898   priv      = tree_column->priv;
1899
1900   if (type == priv->column_type)
1901     return;
1902
1903   if (type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
1904     gtk_tree_view_column_set_resizable (tree_column, FALSE);
1905
1906 #if 0
1907   /* I was clearly on crack when I wrote this.  I'm not sure what's supposed to
1908    * be below so I'll leave it until I figure it out.
1909    */
1910   if (priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE &&
1911       priv->requested_width != -1)
1912     {
1913       gtk_tree_view_column_set_sizing (tree_column, priv->requested_width);
1914     }
1915 #endif
1916   priv->column_type = type;
1917
1918   gtk_tree_view_column_update_button (tree_column);
1919
1920   g_object_notify (G_OBJECT (tree_column), "sizing");
1921 }
1922
1923 /**
1924  * gtk_tree_view_column_get_sizing:
1925  * @tree_column: A #GtkTreeViewColumn.
1926  *
1927  * Returns the current type of @tree_column.
1928  *
1929  * Return value: The type of @tree_column.
1930  **/
1931 GtkTreeViewColumnSizing
1932 gtk_tree_view_column_get_sizing (GtkTreeViewColumn *tree_column)
1933 {
1934   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
1935
1936   return tree_column->priv->column_type;
1937 }
1938
1939 /**
1940  * gtk_tree_view_column_get_width:
1941  * @tree_column: A #GtkTreeViewColumn.
1942  *
1943  * Returns the current size of @tree_column in pixels.
1944  *
1945  * Return value: The current width of @tree_column.
1946  **/
1947 gint
1948 gtk_tree_view_column_get_width (GtkTreeViewColumn *tree_column)
1949 {
1950   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
1951
1952   return tree_column->priv->width;
1953 }
1954
1955 gint
1956 _gtk_tree_view_column_request_width (GtkTreeViewColumn *tree_column)
1957 {
1958   GtkTreeViewColumnPrivate *priv;
1959   gint real_requested_width;
1960
1961   priv = tree_column->priv;
1962
1963   if (priv->use_resized_width)
1964     {
1965       real_requested_width = priv->resized_width;
1966     }
1967   else if (priv->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
1968     {
1969       real_requested_width = priv->fixed_width;
1970     }
1971   else if (gtk_tree_view_get_headers_visible (GTK_TREE_VIEW (priv->tree_view)))
1972     {
1973       gint button_request;
1974
1975       gtk_widget_get_preferred_width (priv->button, &button_request, NULL);
1976       real_requested_width = MAX (priv->requested_width, button_request);
1977     }
1978   else
1979     {
1980       real_requested_width = priv->requested_width;
1981       if (real_requested_width < 0)
1982         real_requested_width = 0;
1983     }
1984
1985   if (priv->min_width != -1)
1986     real_requested_width = MAX (real_requested_width, priv->min_width);
1987
1988   if (priv->max_width != -1)
1989     real_requested_width = MIN (real_requested_width, priv->max_width);
1990
1991   return real_requested_width;
1992 }
1993
1994 void
1995 _gtk_tree_view_column_allocate (GtkTreeViewColumn *tree_column,
1996                                 int                x_offset,
1997                                 int                width,
1998                                 int                cell_width)
1999 {
2000   GtkTreeViewColumnPrivate *priv;
2001   GtkAllocation             allocation;
2002   gboolean                  rtl;
2003
2004   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2005
2006   priv = tree_column->priv;
2007
2008   priv->width = width;
2009
2010   gtk_cell_area_context_allocate (priv->cell_area_context, cell_width, -1);
2011
2012   allocation.x      = x_offset;
2013   allocation.y      = 0;
2014   allocation.width  = width;
2015   allocation.height = _gtk_tree_view_get_header_height (GTK_TREE_VIEW (priv->tree_view));
2016
2017   gtk_widget_size_allocate (priv->button, &allocation);
2018
2019   if (priv->window)
2020     {
2021       rtl = (gtk_widget_get_direction (priv->tree_view) == GTK_TEXT_DIR_RTL);
2022       gdk_window_move_resize (priv->window,
2023                               allocation.x + (rtl ? 0 : allocation.width) - TREE_VIEW_DRAG_WIDTH/2,
2024                               allocation.y,
2025                               TREE_VIEW_DRAG_WIDTH, allocation.height);
2026     }
2027
2028   g_object_notify (G_OBJECT (tree_column), "width");
2029 }
2030
2031 /**
2032  * gtk_tree_view_column_set_fixed_width:
2033  * @tree_column: A #GtkTreeViewColumn.
2034  * @fixed_width: The size to set @tree_column to. Must be greater than 0.
2035  *
2036  * Sets the size of the column in pixels.  This is meaningful only if the sizing
2037  * type is #GTK_TREE_VIEW_COLUMN_FIXED.  The size of the column is clamped to
2038  * the min/max width for the column.  Please note that the min/max width of the
2039  * column doesn't actually affect the "fixed_width" property of the widget, just
2040  * the actual size when displayed.
2041  **/
2042 void
2043 gtk_tree_view_column_set_fixed_width (GtkTreeViewColumn *tree_column,
2044                                       gint               fixed_width)
2045 {
2046   GtkTreeViewColumnPrivate *priv;
2047
2048   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2049   g_return_if_fail (fixed_width > 0);
2050
2051   priv = tree_column->priv;
2052
2053   priv->fixed_width = fixed_width;
2054   priv->use_resized_width = FALSE;
2055
2056   if (priv->tree_view &&
2057       gtk_widget_get_realized (priv->tree_view) &&
2058       priv->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2059     {
2060       gtk_widget_queue_resize (priv->tree_view);
2061     }
2062
2063   g_object_notify (G_OBJECT (tree_column), "fixed-width");
2064 }
2065
2066 /**
2067  * gtk_tree_view_column_get_fixed_width:
2068  * @tree_column: a #GtkTreeViewColumn
2069  *
2070  * Gets the fixed width of the column.  This value is only meaning may not be
2071  * the actual width of the column on the screen, just what is requested.
2072  *
2073  * Return value: the fixed width of the column
2074  **/
2075 gint
2076 gtk_tree_view_column_get_fixed_width (GtkTreeViewColumn *tree_column)
2077 {
2078   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
2079
2080   return tree_column->priv->fixed_width;
2081 }
2082
2083 /**
2084  * gtk_tree_view_column_set_min_width:
2085  * @tree_column: A #GtkTreeViewColumn.
2086  * @min_width: The minimum width of the column in pixels, or -1.
2087  *
2088  * Sets the minimum width of the @tree_column.  If @min_width is -1, then the
2089  * minimum width is unset.
2090  **/
2091 void
2092 gtk_tree_view_column_set_min_width (GtkTreeViewColumn *tree_column,
2093                                     gint               min_width)
2094 {
2095   GtkTreeViewColumnPrivate *priv;
2096
2097   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2098   g_return_if_fail (min_width >= -1);
2099
2100   priv = tree_column->priv;
2101
2102   if (min_width == priv->min_width)
2103     return;
2104
2105   if (priv->visible &&
2106       priv->tree_view != NULL &&
2107       gtk_widget_get_realized (priv->tree_view))
2108     {
2109       if (min_width > priv->width)
2110         gtk_widget_queue_resize (priv->tree_view);
2111     }
2112
2113   priv->min_width = min_width;
2114   g_object_freeze_notify (G_OBJECT (tree_column));
2115   if (priv->max_width != -1 && priv->max_width < min_width)
2116     {
2117       priv->max_width = min_width;
2118       g_object_notify (G_OBJECT (tree_column), "max-width");
2119     }
2120   g_object_notify (G_OBJECT (tree_column), "min-width");
2121   g_object_thaw_notify (G_OBJECT (tree_column));
2122
2123   if (priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2124     _gtk_tree_view_column_autosize (GTK_TREE_VIEW (priv->tree_view),
2125                                     tree_column);
2126 }
2127
2128 /**
2129  * gtk_tree_view_column_get_min_width:
2130  * @tree_column: A #GtkTreeViewColumn.
2131  *
2132  * Returns the minimum width in pixels of the @tree_column, or -1 if no minimum
2133  * width is set.
2134  *
2135  * Return value: The minimum width of the @tree_column.
2136  **/
2137 gint
2138 gtk_tree_view_column_get_min_width (GtkTreeViewColumn *tree_column)
2139 {
2140   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), -1);
2141
2142   return tree_column->priv->min_width;
2143 }
2144
2145 /**
2146  * gtk_tree_view_column_set_max_width:
2147  * @tree_column: A #GtkTreeViewColumn.
2148  * @max_width: The maximum width of the column in pixels, or -1.
2149  *
2150  * Sets the maximum width of the @tree_column.  If @max_width is -1, then the
2151  * maximum width is unset.  Note, the column can actually be wider than max
2152  * width if it's the last column in a view.  In this case, the column expands to
2153  * fill any extra space.
2154  **/
2155 void
2156 gtk_tree_view_column_set_max_width (GtkTreeViewColumn *tree_column,
2157                                     gint               max_width)
2158 {
2159   GtkTreeViewColumnPrivate *priv;
2160
2161   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2162   g_return_if_fail (max_width >= -1);
2163
2164   priv = tree_column->priv;
2165
2166   if (max_width == priv->max_width)
2167     return;
2168
2169   if (priv->visible &&
2170       priv->tree_view != NULL &&
2171       gtk_widget_get_realized (priv->tree_view))
2172     {
2173       if (max_width != -1 && max_width < priv->width)
2174         gtk_widget_queue_resize (priv->tree_view);
2175     }
2176
2177   priv->max_width = max_width;
2178   g_object_freeze_notify (G_OBJECT (tree_column));
2179   if (max_width != -1 && max_width < priv->min_width)
2180     {
2181       priv->min_width = max_width;
2182       g_object_notify (G_OBJECT (tree_column), "min-width");
2183     }
2184   g_object_notify (G_OBJECT (tree_column), "max-width");
2185   g_object_thaw_notify (G_OBJECT (tree_column));
2186
2187   if (priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2188     _gtk_tree_view_column_autosize (GTK_TREE_VIEW (priv->tree_view),
2189                                     tree_column);
2190 }
2191
2192 /**
2193  * gtk_tree_view_column_get_max_width:
2194  * @tree_column: A #GtkTreeViewColumn.
2195  *
2196  * Returns the maximum width in pixels of the @tree_column, or -1 if no maximum
2197  * width is set.
2198  *
2199  * Return value: The maximum width of the @tree_column.
2200  **/
2201 gint
2202 gtk_tree_view_column_get_max_width (GtkTreeViewColumn *tree_column)
2203 {
2204   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), -1);
2205
2206   return tree_column->priv->max_width;
2207 }
2208
2209 /**
2210  * gtk_tree_view_column_clicked:
2211  * @tree_column: a #GtkTreeViewColumn
2212  *
2213  * Emits the "clicked" signal on the column.  This function will only work if
2214  * @tree_column is clickable.
2215  **/
2216 void
2217 gtk_tree_view_column_clicked (GtkTreeViewColumn *tree_column)
2218 {
2219   GtkTreeViewColumnPrivate *priv;
2220
2221   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2222
2223   priv = tree_column->priv;
2224
2225   if (priv->visible &&
2226       priv->button &&
2227       priv->clickable)
2228     gtk_button_clicked (GTK_BUTTON (priv->button));
2229 }
2230
2231 /**
2232  * gtk_tree_view_column_set_title:
2233  * @tree_column: A #GtkTreeViewColumn.
2234  * @title: The title of the @tree_column.
2235  *
2236  * Sets the title of the @tree_column.  If a custom widget has been set, then
2237  * this value is ignored.
2238  **/
2239 void
2240 gtk_tree_view_column_set_title (GtkTreeViewColumn *tree_column,
2241                                 const gchar       *title)
2242 {
2243   GtkTreeViewColumnPrivate *priv;
2244   gchar                    *new_title;
2245
2246   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2247
2248   priv = tree_column->priv;
2249
2250   new_title = g_strdup (title);
2251   g_free (priv->title);
2252   priv->title = new_title;
2253
2254   gtk_tree_view_column_update_button (tree_column);
2255   g_object_notify (G_OBJECT (tree_column), "title");
2256 }
2257
2258 /**
2259  * gtk_tree_view_column_get_title:
2260  * @tree_column: A #GtkTreeViewColumn.
2261  *
2262  * Returns the title of the widget.
2263  *
2264  * Return value: the title of the column. This string should not be
2265  * modified or freed.
2266  **/
2267 G_CONST_RETURN gchar *
2268 gtk_tree_view_column_get_title (GtkTreeViewColumn *tree_column)
2269 {
2270   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
2271
2272   return tree_column->priv->title;
2273 }
2274
2275 /**
2276  * gtk_tree_view_column_set_expand:
2277  * @tree_column: A #GtkTreeViewColumn
2278  * @expand: %TRUE if the column should take available extra space, %FALSE if not
2279  *
2280  * Sets the column to take available extra space.  This space is shared equally
2281  * amongst all columns that have the expand set to %TRUE.  If no column has this
2282  * option set, then the last column gets all extra space.  By default, every
2283  * column is created with this %FALSE.
2284  *
2285  * Since: 2.4
2286  **/
2287 void
2288 gtk_tree_view_column_set_expand (GtkTreeViewColumn *tree_column,
2289                                  gboolean           expand)
2290 {
2291   GtkTreeViewColumnPrivate *priv;
2292
2293   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2294
2295   priv = tree_column->priv;
2296
2297   expand = expand?TRUE:FALSE;
2298   if (priv->expand == expand)
2299     return;
2300   priv->expand = expand;
2301
2302   if (priv->visible &&
2303       priv->tree_view != NULL &&
2304       gtk_widget_get_realized (priv->tree_view))
2305     {
2306       /* We want to continue using the original width of the
2307        * column that includes additional space added by the user
2308        * resizing the columns and possibly extra (expanded) space, which
2309        * are not included in the resized width.
2310        */
2311       priv->use_resized_width = FALSE;
2312
2313       gtk_widget_queue_resize (priv->tree_view);
2314     }
2315
2316   g_object_notify (G_OBJECT (tree_column), "expand");
2317 }
2318
2319 /**
2320  * gtk_tree_view_column_get_expand:
2321  * @tree_column: a #GtkTreeViewColumn
2322  *
2323  * Return %TRUE if the column expands to take any available space.
2324  *
2325  * Return value: %TRUE, if the column expands
2326  *
2327  * Since: 2.4
2328  **/
2329 gboolean
2330 gtk_tree_view_column_get_expand (GtkTreeViewColumn *tree_column)
2331 {
2332   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2333
2334   return tree_column->priv->expand;
2335 }
2336
2337 /**
2338  * gtk_tree_view_column_set_clickable:
2339  * @tree_column: A #GtkTreeViewColumn.
2340  * @clickable: %TRUE if the header is active.
2341  *
2342  * Sets the header to be active if @active is %TRUE.  When the header is active,
2343  * then it can take keyboard focus, and can be clicked.
2344  **/
2345 void
2346 gtk_tree_view_column_set_clickable (GtkTreeViewColumn *tree_column,
2347                                     gboolean           clickable)
2348 {
2349   GtkTreeViewColumnPrivate *priv;
2350
2351   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2352
2353   priv = tree_column->priv;
2354
2355   clickable = !! clickable;
2356   if (priv->clickable == clickable)
2357     return;
2358
2359   priv->clickable = clickable;
2360   gtk_tree_view_column_update_button (tree_column);
2361   g_object_notify (G_OBJECT (tree_column), "clickable");
2362 }
2363
2364 /**
2365  * gtk_tree_view_column_get_clickable:
2366  * @tree_column: a #GtkTreeViewColumn
2367  *
2368  * Returns %TRUE if the user can click on the header for the column.
2369  *
2370  * Return value: %TRUE if user can click the column header.
2371  **/
2372 gboolean
2373 gtk_tree_view_column_get_clickable (GtkTreeViewColumn *tree_column)
2374 {
2375   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2376
2377   return tree_column->priv->clickable;
2378 }
2379
2380 /**
2381  * gtk_tree_view_column_set_widget:
2382  * @tree_column: A #GtkTreeViewColumn.
2383  * @widget: (allow-none): A child #GtkWidget, or %NULL.
2384  *
2385  * Sets the widget in the header to be @widget.  If widget is %NULL, then the
2386  * header button is set with a #GtkLabel set to the title of @tree_column.
2387  **/
2388 void
2389 gtk_tree_view_column_set_widget (GtkTreeViewColumn *tree_column,
2390                                  GtkWidget         *widget)
2391 {
2392   GtkTreeViewColumnPrivate *priv;
2393
2394   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2395   g_return_if_fail (widget == NULL || GTK_IS_WIDGET (widget));
2396
2397   priv = tree_column->priv;
2398
2399   if (widget)
2400     g_object_ref_sink (widget);
2401
2402   if (priv->child)
2403     g_object_unref (priv->child);
2404
2405   priv->child = widget;
2406   gtk_tree_view_column_update_button (tree_column);
2407   g_object_notify (G_OBJECT (tree_column), "widget");
2408 }
2409
2410 /**
2411  * gtk_tree_view_column_get_widget:
2412  * @tree_column: A #GtkTreeViewColumn.
2413  *
2414  * Returns the #GtkWidget in the button on the column header.
2415  * If a custom widget has not been set then %NULL is returned.
2416  *
2417  * Return value: (transfer none): The #GtkWidget in the column
2418  *     header, or %NULL
2419  **/
2420 GtkWidget *
2421 gtk_tree_view_column_get_widget (GtkTreeViewColumn *tree_column)
2422 {
2423   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
2424
2425   return tree_column->priv->child;
2426 }
2427
2428 /**
2429  * gtk_tree_view_column_set_alignment:
2430  * @tree_column: A #GtkTreeViewColumn.
2431  * @xalign: The alignment, which is between [0.0 and 1.0] inclusive.
2432  *
2433  * Sets the alignment of the title or custom widget inside the column header.
2434  * The alignment determines its location inside the button -- 0.0 for left, 0.5
2435  * for center, 1.0 for right.
2436  **/
2437 void
2438 gtk_tree_view_column_set_alignment (GtkTreeViewColumn *tree_column,
2439                                     gfloat             xalign)
2440 {
2441   GtkTreeViewColumnPrivate *priv;
2442
2443   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2444
2445   priv = tree_column->priv;
2446
2447   xalign = CLAMP (xalign, 0.0, 1.0);
2448
2449   if (priv->xalign == xalign)
2450     return;
2451
2452   priv->xalign = xalign;
2453   gtk_tree_view_column_update_button (tree_column);
2454   g_object_notify (G_OBJECT (tree_column), "alignment");
2455 }
2456
2457 /**
2458  * gtk_tree_view_column_get_alignment:
2459  * @tree_column: A #GtkTreeViewColumn.
2460  *
2461  * Returns the current x alignment of @tree_column.  This value can range
2462  * between 0.0 and 1.0.
2463  *
2464  * Return value: The current alignent of @tree_column.
2465  **/
2466 gfloat
2467 gtk_tree_view_column_get_alignment (GtkTreeViewColumn *tree_column)
2468 {
2469   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0.5);
2470
2471   return tree_column->priv->xalign;
2472 }
2473
2474 /**
2475  * gtk_tree_view_column_set_reorderable:
2476  * @tree_column: A #GtkTreeViewColumn
2477  * @reorderable: %TRUE, if the column can be reordered.
2478  *
2479  * If @reorderable is %TRUE, then the column can be reordered by the end user
2480  * dragging the header.
2481  **/
2482 void
2483 gtk_tree_view_column_set_reorderable (GtkTreeViewColumn *tree_column,
2484                                       gboolean           reorderable)
2485 {
2486   GtkTreeViewColumnPrivate *priv;
2487
2488   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2489
2490   priv = tree_column->priv;
2491
2492   /*  if (reorderable)
2493       gtk_tree_view_column_set_clickable (tree_column, TRUE);*/
2494
2495   if (priv->reorderable == (reorderable?TRUE:FALSE))
2496     return;
2497
2498   priv->reorderable = (reorderable?TRUE:FALSE);
2499   gtk_tree_view_column_update_button (tree_column);
2500   g_object_notify (G_OBJECT (tree_column), "reorderable");
2501 }
2502
2503 /**
2504  * gtk_tree_view_column_get_reorderable:
2505  * @tree_column: A #GtkTreeViewColumn
2506  *
2507  * Returns %TRUE if the @tree_column can be reordered by the user.
2508  *
2509  * Return value: %TRUE if the @tree_column can be reordered by the user.
2510  **/
2511 gboolean
2512 gtk_tree_view_column_get_reorderable (GtkTreeViewColumn *tree_column)
2513 {
2514   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2515
2516   return tree_column->priv->reorderable;
2517 }
2518
2519
2520 /**
2521  * gtk_tree_view_column_set_sort_column_id:
2522  * @tree_column: a #GtkTreeViewColumn
2523  * @sort_column_id: The @sort_column_id of the model to sort on.
2524  *
2525  * Sets the logical @sort_column_id that this column sorts on when this column
2526  * is selected for sorting.  Doing so makes the column header clickable.
2527  **/
2528 void
2529 gtk_tree_view_column_set_sort_column_id (GtkTreeViewColumn *tree_column,
2530                                          gint               sort_column_id)
2531 {
2532   GtkTreeViewColumnPrivate *priv;
2533
2534   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2535   g_return_if_fail (sort_column_id >= -1);
2536
2537   priv = tree_column->priv;
2538
2539   if (priv->sort_column_id == sort_column_id)
2540     return;
2541
2542   priv->sort_column_id = sort_column_id;
2543
2544   /* Handle unsetting the id */
2545   if (sort_column_id == -1)
2546     {
2547       GtkTreeModel *model = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
2548
2549       if (priv->sort_clicked_signal)
2550         {
2551           g_signal_handler_disconnect (tree_column, priv->sort_clicked_signal);
2552           priv->sort_clicked_signal = 0;
2553         }
2554
2555       if (priv->sort_column_changed_signal)
2556         {
2557           g_signal_handler_disconnect (model, priv->sort_column_changed_signal);
2558           priv->sort_column_changed_signal = 0;
2559         }
2560
2561       gtk_tree_view_column_set_sort_order (tree_column, GTK_SORT_ASCENDING);
2562       gtk_tree_view_column_set_sort_indicator (tree_column, FALSE);
2563       gtk_tree_view_column_set_clickable (tree_column, FALSE);
2564       g_object_notify (G_OBJECT (tree_column), "sort-column-id");
2565       return;
2566     }
2567
2568   gtk_tree_view_column_set_clickable (tree_column, TRUE);
2569
2570   if (! priv->sort_clicked_signal)
2571     priv->sort_clicked_signal = g_signal_connect (tree_column,
2572                                                   "clicked",
2573                                                   G_CALLBACK (gtk_tree_view_column_sort),
2574                                                   NULL);
2575
2576   gtk_tree_view_column_setup_sort_column_id_callback (tree_column);
2577   g_object_notify (G_OBJECT (tree_column), "sort-column-id");
2578 }
2579
2580 /**
2581  * gtk_tree_view_column_get_sort_column_id:
2582  * @tree_column: a #GtkTreeViewColumn
2583  *
2584  * Gets the logical @sort_column_id that the model sorts on when this
2585  * column is selected for sorting.
2586  * See gtk_tree_view_column_set_sort_column_id().
2587  *
2588  * Return value: the current @sort_column_id for this column, or -1 if
2589  *               this column can't be used for sorting.
2590  **/
2591 gint
2592 gtk_tree_view_column_get_sort_column_id (GtkTreeViewColumn *tree_column)
2593 {
2594   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
2595
2596   return tree_column->priv->sort_column_id;
2597 }
2598
2599 /**
2600  * gtk_tree_view_column_set_sort_indicator:
2601  * @tree_column: a #GtkTreeViewColumn
2602  * @setting: %TRUE to display an indicator that the column is sorted
2603  *
2604  * Call this function with a @setting of %TRUE to display an arrow in
2605  * the header button indicating the column is sorted. Call
2606  * gtk_tree_view_column_set_sort_order() to change the direction of
2607  * the arrow.
2608  *
2609  **/
2610 void
2611 gtk_tree_view_column_set_sort_indicator (GtkTreeViewColumn     *tree_column,
2612                                          gboolean               setting)
2613 {
2614   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2615
2616   setting = setting != FALSE;
2617
2618   if (setting == tree_column->priv->show_sort_indicator)
2619     return;
2620
2621   tree_column->priv->show_sort_indicator = setting;
2622   gtk_tree_view_column_update_button (tree_column);
2623   g_object_notify (G_OBJECT (tree_column), "sort-indicator");
2624 }
2625
2626 /**
2627  * gtk_tree_view_column_get_sort_indicator:
2628  * @tree_column: a #GtkTreeViewColumn
2629  *
2630  * Gets the value set by gtk_tree_view_column_set_sort_indicator().
2631  *
2632  * Return value: whether the sort indicator arrow is displayed
2633  **/
2634 gboolean
2635 gtk_tree_view_column_get_sort_indicator  (GtkTreeViewColumn     *tree_column)
2636 {
2637   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2638
2639   return tree_column->priv->show_sort_indicator;
2640 }
2641
2642 /**
2643  * gtk_tree_view_column_set_sort_order:
2644  * @tree_column: a #GtkTreeViewColumn
2645  * @order: sort order that the sort indicator should indicate
2646  *
2647  * Changes the appearance of the sort indicator.
2648  *
2649  * This <emphasis>does not</emphasis> actually sort the model.  Use
2650  * gtk_tree_view_column_set_sort_column_id() if you want automatic sorting
2651  * support.  This function is primarily for custom sorting behavior, and should
2652  * be used in conjunction with gtk_tree_sortable_set_sort_column() to do
2653  * that. For custom models, the mechanism will vary.
2654  *
2655  * The sort indicator changes direction to indicate normal sort or reverse sort.
2656  * Note that you must have the sort indicator enabled to see anything when
2657  * calling this function; see gtk_tree_view_column_set_sort_indicator().
2658  **/
2659 void
2660 gtk_tree_view_column_set_sort_order      (GtkTreeViewColumn     *tree_column,
2661                                           GtkSortType            order)
2662 {
2663   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2664
2665   if (order == tree_column->priv->sort_order)
2666     return;
2667
2668   tree_column->priv->sort_order = order;
2669   gtk_tree_view_column_update_button (tree_column);
2670   g_object_notify (G_OBJECT (tree_column), "sort-order");
2671 }
2672
2673 /**
2674  * gtk_tree_view_column_get_sort_order:
2675  * @tree_column: a #GtkTreeViewColumn
2676  *
2677  * Gets the value set by gtk_tree_view_column_set_sort_order().
2678  *
2679  * Return value: the sort order the sort indicator is indicating
2680  **/
2681 GtkSortType
2682 gtk_tree_view_column_get_sort_order      (GtkTreeViewColumn     *tree_column)
2683 {
2684   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
2685
2686   return tree_column->priv->sort_order;
2687 }
2688
2689 /**
2690  * gtk_tree_view_column_cell_set_cell_data:
2691  * @tree_column: A #GtkTreeViewColumn.
2692  * @tree_model: The #GtkTreeModel to to get the cell renderers attributes from.
2693  * @iter: The #GtkTreeIter to to get the cell renderer's attributes from.
2694  * @is_expander: %TRUE, if the row has children
2695  * @is_expanded: %TRUE, if the row has visible children
2696  *
2697  * Sets the cell renderer based on the @tree_model and @iter.  That is, for
2698  * every attribute mapping in @tree_column, it will get a value from the set
2699  * column on the @iter, and use that value to set the attribute on the cell
2700  * renderer.  This is used primarily by the #GtkTreeView.
2701  **/
2702 void
2703 gtk_tree_view_column_cell_set_cell_data (GtkTreeViewColumn *tree_column,
2704                                          GtkTreeModel      *tree_model,
2705                                          GtkTreeIter       *iter,
2706                                          gboolean           is_expander,
2707                                          gboolean           is_expanded)
2708 {
2709   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2710
2711   if (tree_model == NULL)
2712     return;
2713
2714   gtk_cell_area_apply_attributes (tree_column->priv->cell_area, tree_model, iter,
2715                                   is_expander, is_expanded);
2716 }
2717
2718 /**
2719  * gtk_tree_view_column_cell_get_size:
2720  * @tree_column: A #GtkTreeViewColumn.
2721  * @cell_area: (allow-none): The area a cell in the column will be allocated, or %NULL
2722  * @x_offset: (allow-none): location to return x offset of a cell relative to @cell_area, or %NULL
2723  * @y_offset: (allow-none): location to return y offset of a cell relative to @cell_area, or %NULL
2724  * @width: (allow-none): location to return width needed to render a cell, or %NULL
2725  * @height: (allow-none): location to return height needed to render a cell, or %NULL
2726  *
2727  * Obtains the width and height needed to render the column.  This is used
2728  * primarily by the #GtkTreeView.
2729  **/
2730 void
2731 gtk_tree_view_column_cell_get_size (GtkTreeViewColumn  *tree_column,
2732                                     const GdkRectangle *cell_area,
2733                                     gint               *x_offset,
2734                                     gint               *y_offset,
2735                                     gint               *width,
2736                                     gint               *height)
2737 {
2738   GtkTreeViewColumnPrivate *priv;
2739   gint min_width = 0, min_height = 0;
2740
2741   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2742
2743   priv = tree_column->priv;
2744
2745   g_signal_handler_block (priv->cell_area_context,
2746                           priv->context_changed_signal);
2747
2748   gtk_cell_area_get_preferred_width (priv->cell_area,
2749                                      priv->cell_area_context,
2750                                      priv->tree_view,
2751                                      NULL, NULL);
2752
2753   gtk_cell_area_context_get_preferred_width (priv->cell_area_context, &min_width, NULL);
2754
2755   gtk_cell_area_get_preferred_height_for_width (priv->cell_area,
2756                                                 priv->cell_area_context,
2757                                                 priv->tree_view,
2758                                                 min_width,
2759                                                 &min_height,
2760                                                 NULL);
2761
2762   g_signal_handler_unblock (priv->cell_area_context,
2763                             priv->context_changed_signal);
2764
2765
2766   if (height)
2767     * height = min_height;
2768   if (width)
2769     * width = min_width;
2770
2771 }
2772
2773 /**
2774  * gtk_tree_view_column_cell_render:
2775  * @tree_column: A #GtkTreeViewColumn.
2776  * @cr: cairo context to draw to
2777  * @background_area: entire cell area (including tree expanders and maybe padding on the sides)
2778  * @cell_area: area normally rendered by a cell renderer
2779  * @flags: flags that affect rendering
2780  *
2781  * Renders the cell contained by #tree_column. This is used primarily by the
2782  * #GtkTreeView.
2783  **/
2784 void
2785 _gtk_tree_view_column_cell_render (GtkTreeViewColumn  *tree_column,
2786                                    cairo_t            *cr,
2787                                    const GdkRectangle *background_area,
2788                                    const GdkRectangle *cell_area,
2789                                    guint               flags,
2790                                    gboolean            draw_focus)
2791 {
2792   GtkTreeViewColumnPrivate *priv;
2793
2794   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2795   g_return_if_fail (cr != NULL);
2796   g_return_if_fail (background_area != NULL);
2797   g_return_if_fail (cell_area != NULL);
2798
2799   priv = tree_column->priv;
2800
2801   cairo_save (cr);
2802
2803   gtk_cell_area_render (priv->cell_area, priv->cell_area_context,
2804                         priv->tree_view, cr,
2805                         background_area, cell_area, flags,
2806                         draw_focus);
2807
2808   cairo_restore (cr);
2809 }
2810
2811 gboolean
2812 _gtk_tree_view_column_cell_event (GtkTreeViewColumn  *tree_column,
2813                                   GdkEvent           *event,
2814                                   const GdkRectangle *cell_area,
2815                                   guint               flags)
2816 {
2817   GtkTreeViewColumnPrivate *priv;
2818
2819   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2820
2821   priv = tree_column->priv;
2822
2823   return gtk_cell_area_event (priv->cell_area,
2824                               priv->cell_area_context,
2825                               priv->tree_view,
2826                               event,
2827                               cell_area,
2828                               flags);
2829 }
2830
2831 /**
2832  * gtk_tree_view_column_cell_is_visible:
2833  * @tree_column: A #GtkTreeViewColumn
2834  *
2835  * Returns %TRUE if any of the cells packed into the @tree_column are visible.
2836  * For this to be meaningful, you must first initialize the cells with
2837  * gtk_tree_view_column_cell_set_cell_data()
2838  *
2839  * Return value: %TRUE, if any of the cells packed into the @tree_column are currently visible
2840  **/
2841 gboolean
2842 gtk_tree_view_column_cell_is_visible (GtkTreeViewColumn *tree_column)
2843 {
2844   GList *list;
2845   GList *cells;
2846   GtkTreeViewColumnPrivate *priv;
2847
2848   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2849
2850   priv = tree_column->priv;
2851
2852   cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (priv->cell_area));
2853   for (list = cells; list; list = list->next)
2854     {
2855       if (gtk_cell_renderer_get_visible (list->data))
2856         {
2857           g_list_free (cells);
2858           return TRUE;
2859         }
2860     }
2861
2862   g_list_free (cells);
2863
2864   return FALSE;
2865 }
2866
2867 /**
2868  * gtk_tree_view_column_focus_cell:
2869  * @tree_column: A #GtkTreeViewColumn
2870  * @cell: A #GtkCellRenderer
2871  *
2872  * Sets the current keyboard focus to be at @cell, if the column contains
2873  * 2 or more editable and activatable cells.
2874  *
2875  * Since: 2.2
2876  **/
2877 void
2878 gtk_tree_view_column_focus_cell (GtkTreeViewColumn *tree_column,
2879                                  GtkCellRenderer   *cell)
2880 {
2881   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2882   g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
2883
2884   gtk_cell_area_set_focus_cell (tree_column->priv->cell_area, cell);
2885 }
2886
2887 void
2888 _gtk_tree_view_column_cell_set_dirty (GtkTreeViewColumn *tree_column,
2889                                       gboolean           install_handler)
2890 {
2891   GtkTreeViewColumnPrivate *priv = tree_column->priv;
2892
2893   priv->dirty = TRUE;
2894   priv->requested_width = -1;
2895   priv->width = 0;
2896
2897   if (priv->tree_view &&
2898       gtk_widget_get_realized (priv->tree_view))
2899     {
2900       _gtk_tree_view_install_mark_rows_col_dirty (GTK_TREE_VIEW (priv->tree_view), install_handler);
2901       gtk_widget_queue_resize (priv->tree_view);
2902     }
2903 }
2904
2905 gboolean
2906 _gtk_tree_view_column_cell_get_dirty (GtkTreeViewColumn  *tree_column)
2907 {
2908   return tree_column->priv->dirty;
2909 }
2910
2911 /**
2912  * gtk_tree_view_column_cell_get_position:
2913  * @tree_column: a #GtkTreeViewColumn
2914  * @cell_renderer: a #GtkCellRenderer
2915  * @x_offset: return location for the horizontal position of @cell within
2916  *            @tree_column, may be %NULL
2917  * @width: return location for the width of @cell, may be %NULL
2918  *
2919  * Obtains the horizontal position and size of a cell in a column. If the
2920  * cell is not found in the column, @start_pos and @width are not changed and
2921  * %FALSE is returned.
2922  *
2923  * Return value: %TRUE if @cell belongs to @tree_column.
2924  */
2925 gboolean
2926 gtk_tree_view_column_cell_get_position (GtkTreeViewColumn *tree_column,
2927                                         GtkCellRenderer   *cell_renderer,
2928                                         gint              *x_offset,
2929                                         gint              *width)
2930 {
2931   GtkTreeViewColumnPrivate *priv;
2932   GdkRectangle zero_cell_area = { 0, };
2933   GdkRectangle allocation;
2934
2935   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2936   g_return_val_if_fail (GTK_IS_CELL_RENDERER (cell_renderer), FALSE);
2937
2938   priv = tree_column->priv;
2939
2940   /* FIXME: Could use a boolean return value for invalid cells */
2941   gtk_cell_area_get_cell_allocation (priv->cell_area,
2942                                      priv->cell_area_context,
2943                                      priv->tree_view,
2944                                      cell_renderer,
2945                                      &zero_cell_area,
2946                                      &allocation);
2947
2948   if (x_offset)
2949     *x_offset = allocation.x;
2950   if (width)
2951     *width = allocation.width;
2952
2953   return TRUE;
2954 }
2955
2956 /**
2957  * gtk_tree_view_column_queue_resize:
2958  * @tree_column: A #GtkTreeViewColumn
2959  *
2960  * Flags the column, and the cell renderers added to this column, to have
2961  * their sizes renegotiated.
2962  *
2963  * Since: 2.8
2964  **/
2965 void
2966 gtk_tree_view_column_queue_resize (GtkTreeViewColumn *tree_column)
2967 {
2968   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2969
2970   if (tree_column->priv->tree_view)
2971     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
2972 }
2973
2974 /**
2975  * gtk_tree_view_column_get_tree_view:
2976  * @tree_column: A #GtkTreeViewColumn
2977  *
2978  * Returns the #GtkTreeView wherein @tree_column has been inserted.
2979  * If @column is currently not inserted in any tree view, %NULL is
2980  * returned.
2981  *
2982  * Return value: (transfer none): The tree view wherein @column has
2983  *     been inserted if any, %NULL otherwise.
2984  *
2985  * Since: 2.12
2986  */
2987 GtkWidget *
2988 gtk_tree_view_column_get_tree_view (GtkTreeViewColumn *tree_column)
2989 {
2990   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
2991
2992   return tree_column->priv->tree_view;
2993 }
2994
2995 /**
2996  * gtk_tree_view_column_get_button:
2997  * @tree_column: A #GtkTreeViewColumn
2998  *
2999  * Returns the button used in the treeview column header
3000  *
3001  * Return value: (transfer none): The button for the column header.
3002  *
3003  * Since: 3.0
3004  */
3005 GtkWidget *
3006 gtk_tree_view_column_get_button (GtkTreeViewColumn *tree_column)
3007 {
3008   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
3009
3010   return tree_column->priv->button;
3011 }
3012
3013 GdkWindow *
3014 _gtk_tree_view_column_get_window (GtkTreeViewColumn  *column)
3015 {
3016   return column->priv->window;
3017 }
3018
3019 void
3020 _gtk_tree_view_column_set_requested_width (GtkTreeViewColumn  *column,
3021                                            gint                width)
3022 {
3023   column->priv->requested_width = width;
3024 }
3025
3026 gint
3027 _gtk_tree_view_column_get_requested_width (GtkTreeViewColumn  *column)
3028 {
3029   return column->priv->requested_width;
3030 }
3031
3032 void
3033 _gtk_tree_view_column_set_resized_width (GtkTreeViewColumn  *column,
3034                                          gint                width)
3035 {
3036   column->priv->resized_width = width;
3037 }
3038
3039 gint
3040 _gtk_tree_view_column_get_resized_width (GtkTreeViewColumn  *column)
3041 {
3042   return column->priv->resized_width;
3043 }
3044
3045 void
3046 _gtk_tree_view_column_set_use_resized_width (GtkTreeViewColumn  *column,
3047                                              gboolean            use_resized_width)
3048 {
3049   column->priv->use_resized_width = use_resized_width;
3050 }
3051
3052 gboolean
3053 _gtk_tree_view_column_get_use_resized_width (GtkTreeViewColumn  *column)
3054 {
3055   return column->priv->use_resized_width;
3056 }
3057
3058 gint
3059 _gtk_tree_view_column_get_drag_x (GtkTreeViewColumn  *column)
3060 {
3061   return column->priv->drag_x;
3062 }
3063
3064 GtkCellAreaContext *
3065 _gtk_tree_view_column_get_context (GtkTreeViewColumn  *column)
3066 {
3067   return column->priv->cell_area_context;
3068 }