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

   1 /* gtktreeviewcolumn.c
   2  * Copyright (C) 2000  Red Hat, Inc.,  Jonathan Blandford <jrb@redhat.com>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 #include "config.h"
  21
  22 #include "gtktreeviewcolumn.h"
  23
  24 #include <string.h>
  25
  26 #include "gtktreeview.h"
  27 #include "gtktreeprivate.h"
  28 #include "gtkcelllayout.h"
  29 #include "gtkbutton.h"
  30 #include "gtkalignment.h"
  31 #include "gtklabel.h"
  32 #include "gtkhbox.h"
  33 #include "gtkmarshalers.h"
  34 #include "gtkarrow.h"
  35 #include "gtkcellareacontext.h"
  36 #include "gtkcellareabox.h"
  37 #include "gtkprivate.h"
  38 #include "gtkintl.h"
  39
  40
  41 /**
  42  * SECTION:gtktreeviewcolumn
  43  * @Short_description: A visible column in a GtkTreeView widget
  44  * @Title: GtkTreeViewColumn
  45  * @See_also: #GtkTreeView, #GtkTreeSelection, #GtkTreeDnd, #GtkTreeMode, #GtkTreeSortable,
  46  *   #GtkTreeModelSort, #GtkListStore, #GtkTreeStore, #GtkCellRenderer, #GtkCellEditable,
  47  *   #GtkCellRendererPixbuf, #GtkCellRendererText, #GtkCellRendererToggle
  48  *
  49  * The GtkTreeViewColumn object represents a visible column in a #GtkTreeView widget.
  50  * It allows to set properties of the column header, and functions as a holding pen for
  51  * the cell renderers which determine how the data in the column is displayed.
  52  *
  53  * Please refer to the <link linkend="TreeWidget">tree widget conceptual overview</link>
  54  * for an overview of all the objects and data types related to the tree widget and how
  55  * they work together.
  56  */
  57
  58
  59 /* Type methods */
  60 static void gtk_tree_view_column_cell_layout_init              (GtkCellLayoutIface      *iface);
  61
  62 /* GObject methods */
  63 static void gtk_tree_view_column_set_property                  (GObject                 *object,
  64                                                                 guint                    prop_id,
  65                                                                 const GValue            *value,
  66                                                                 GParamSpec              *pspec);
  67 static void gtk_tree_view_column_get_property                  (GObject                 *object,
  68                                                                 guint                    prop_id,
  69                                                                 GValue                  *value,
  70                                                                 GParamSpec              *pspec);
  71 static void gtk_tree_view_column_finalize                      (GObject                 *object);
  72 static void gtk_tree_view_column_dispose                       (GObject                 *object);
  73 static GObject *gtk_tree_view_column_constructor               (GType                    type,
  74                                                                 guint                    n_construct_properties,
  75                                                                 GObjectConstructParam   *construct_properties);
  76
  77 /* GtkCellLayout implementation */
  78 static GtkCellArea *gtk_tree_view_column_cell_layout_get_area  (GtkCellLayout           *cell_layout);
  79
  80 /* Button handling code */
  81 static void gtk_tree_view_column_create_button                 (GtkTreeViewColumn       *tree_column);
  82 static void gtk_tree_view_column_update_button                 (GtkTreeViewColumn       *tree_column);
  83
  84 /* Button signal handlers */
  85 static gint gtk_tree_view_column_button_event                  (GtkWidget               *widget,
  86                                                                 GdkEvent                *event,
  87                                                                 gpointer                 data);
  88 static void gtk_tree_view_column_button_clicked                (GtkWidget               *widget,
  89                                                                 gpointer                 data);
  90 static gboolean gtk_tree_view_column_mnemonic_activate         (GtkWidget *widget,
  91                                                                 gboolean   group_cycling,
  92                                                                 gpointer   data);
  93
  94 /* Property handlers */
  95 static void gtk_tree_view_model_sort_column_changed            (GtkTreeSortable         *sortable,
  96                                                                 GtkTreeViewColumn       *tree_column);
  97
  98 /* GtkCellArea/GtkCellAreaContext callbacks */
  99 static void gtk_tree_view_column_context_changed               (GtkCellAreaContext      *context,
 100                                                                 GParamSpec              *pspec,
 101                                                                 GtkTreeViewColumn       *tree_column);
 102 static void gtk_tree_view_column_add_editable_callback         (GtkCellArea             *area,
 103                                                                 GtkCellRenderer         *renderer,
 104                                                                 GtkCellEditable         *edit_widget,
 105                                                                 GdkRectangle            *cell_area,
 106                                                                 const gchar             *path_string,
 107                                                                 gpointer                 user_data);
 108 static void gtk_tree_view_column_remove_editable_callback      (GtkCellArea             *area,
 109                                                                 GtkCellRenderer         *renderer,
 110                                                                 GtkCellEditable         *edit_widget,
 111                                                                 gpointer                 user_data);
 112
 113 /* Internal functions */
 114 static void gtk_tree_view_column_sort                          (GtkTreeViewColumn       *tree_column,
 115                                                                 gpointer                 data);
 116 static void gtk_tree_view_column_setup_sort_column_id_callback (GtkTreeViewColumn       *tree_column);
 117 static void gtk_tree_view_column_set_attributesv               (GtkTreeViewColumn       *tree_column,
 118                                                                 GtkCellRenderer         *cell_renderer,
 119                                                                 va_list                  args);
 120
 121 /* GtkBuildable implementation */
 122 static void gtk_tree_view_column_buildable_init                 (GtkBuildableIface     *iface);
 123
 124
 125 struct _GtkTreeViewColumnPrivate
 126 {
 127   GtkWidget *tree_view;
 128   GtkWidget *button;
 129   GtkWidget *child;
 130   GtkWidget *arrow;
 131   GtkWidget *alignment;
 132   GdkWindow *window;
 133   gfloat xalign;
 134   gulong property_changed_signal;
 135
 136   /* Sizing fields */
 137   /* see gtk+/doc/tree-column-sizing.txt for more information on them */
 138   GtkTreeViewColumnSizing column_type;
 139   gint padding;
 140   gint resized_width;
 141   gint width;
 142   gint fixed_width;
 143   gint min_width;
 144   gint max_width;
 145
 146   /* dragging columns */
 147   gint drag_x;
 148   gint drag_y;
 149
 150   gchar *title;
 151
 152   /* Sorting */
 153   gulong      sort_clicked_signal;
 154   gulong      sort_column_changed_signal;
 155   gint        sort_column_id;
 156   GtkSortType sort_order;
 157
 158   /* Cell area */
 159   GtkCellArea        *cell_area;
 160   GtkCellAreaContext *cell_area_context;
 161   gulong              add_editable_signal;
 162   gulong              remove_editable_signal;
 163   gulong              context_changed_signal;
 164
 165   /* Flags */
 166   guint visible             : 1;
 167   guint resizable           : 1;
 168   guint clickable           : 1;
 169   guint dirty               : 1;
 170   guint show_sort_indicator : 1;
 171   guint maybe_reordered     : 1;
 172   guint reorderable         : 1;
 173   guint use_resized_width   : 1;
 174   guint expand              : 1;
 175 };
 176
 177 enum
 178 {
 179   PROP_0,
 180   PROP_VISIBLE,
 181   PROP_RESIZABLE,
 182   PROP_WIDTH,
 183   PROP_SPACING,
 184   PROP_SIZING,
 185   PROP_FIXED_WIDTH,
 186   PROP_MIN_WIDTH,
 187   PROP_MAX_WIDTH,
 188   PROP_TITLE,
 189   PROP_EXPAND,
 190   PROP_CLICKABLE,
 191   PROP_WIDGET,
 192   PROP_ALIGNMENT,
 193   PROP_REORDERABLE,
 194   PROP_SORT_INDICATOR,
 195   PROP_SORT_ORDER,
 196   PROP_SORT_COLUMN_ID,
 197   PROP_CELL_AREA
 198 };
 199
 200 enum
 201 {
 202   CLICKED,
 203   LAST_SIGNAL
 204 };
 205
 206 static guint tree_column_signals[LAST_SIGNAL] = { 0 };
 207
 208 G_DEFINE_TYPE_WITH_CODE (GtkTreeViewColumn, gtk_tree_view_column, G_TYPE_INITIALLY_UNOWNED,
 209                          G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT,
 210                                                 gtk_tree_view_column_cell_layout_init)
 211                          G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
 212                                                 gtk_tree_view_column_buildable_init))
 213
 214
 215 static void
 216 gtk_tree_view_column_class_init (GtkTreeViewColumnClass *class)
 217 {
 218   GObjectClass *object_class;
 219
 220   object_class = (GObjectClass*) class;
 221
 222   class->clicked = NULL;
 223
 224   object_class->constructor = gtk_tree_view_column_constructor;
 225   object_class->finalize = gtk_tree_view_column_finalize;
 226   object_class->dispose = gtk_tree_view_column_dispose;
 227   object_class->set_property = gtk_tree_view_column_set_property;
 228   object_class->get_property = gtk_tree_view_column_get_property;
 229
 230   tree_column_signals[CLICKED] =
 231     g_signal_new (I_("clicked"),
 232                   G_OBJECT_CLASS_TYPE (object_class),
 233                   G_SIGNAL_RUN_LAST,
 234                   G_STRUCT_OFFSET (GtkTreeViewColumnClass, clicked),
 235                   NULL, NULL,
 236                   _gtk_marshal_VOID__VOID,
 237                   G_TYPE_NONE, 0);
 238
 239   g_object_class_install_property (object_class,
 240                                    PROP_VISIBLE,
 241                                    g_param_spec_boolean ("visible",
 242                                                         P_("Visible"),
 243                                                         P_("Whether to display the column"),
 244                                                          TRUE,
 245                                                          GTK_PARAM_READWRITE));
 246
 247   g_object_class_install_property (object_class,
 248                                    PROP_RESIZABLE,
 249                                    g_param_spec_boolean ("resizable",
 250                                                          P_("Resizable"),
 251                                                          P_("Column is user-resizable"),
 252                                                          FALSE,
 253                                                          GTK_PARAM_READWRITE));
 254
 255   g_object_class_install_property (object_class,
 256                                    PROP_WIDTH,
 257                                    g_param_spec_int ("width",
 258                                                      P_("Width"),
 259                                                      P_("Current width of the column"),
 260                                                      0,
 261                                                      G_MAXINT,
 262                                                      0,
 263                                                      GTK_PARAM_READABLE));
 264   g_object_class_install_property (object_class,
 265                                    PROP_SPACING,
 266                                    g_param_spec_int ("spacing",
 267                                                      P_("Spacing"),
 268                                                      P_("Space which is inserted between cells"),
 269                                                      0,
 270                                                      G_MAXINT,
 271                                                      0,
 272                                                      GTK_PARAM_READWRITE));
 273   g_object_class_install_property (object_class,
 274                                    PROP_SIZING,
 275                                    g_param_spec_enum ("sizing",
 276                                                       P_("Sizing"),
 277                                                       P_("Resize mode of the column"),
 278                                                       GTK_TYPE_TREE_VIEW_COLUMN_SIZING,
 279                                                       GTK_TREE_VIEW_COLUMN_GROW_ONLY,
 280                                                       GTK_PARAM_READWRITE));
 281
 282   g_object_class_install_property (object_class,
 283                                    PROP_FIXED_WIDTH,
 284                                    g_param_spec_int ("fixed-width",
 285                                                      P_("Fixed Width"),
 286                                                      P_("Current fixed width of the column"),
 287                                                      1,
 288                                                      G_MAXINT,
 289                                                      1, /* not useful */
 290                                                      GTK_PARAM_READWRITE));
 291
 292   g_object_class_install_property (object_class,
 293                                    PROP_MIN_WIDTH,
 294                                    g_param_spec_int ("min-width",
 295                                                      P_("Minimum Width"),
 296                                                      P_("Minimum allowed width of the column"),
 297                                                      -1,
 298                                                      G_MAXINT,
 299                                                      -1,
 300                                                      GTK_PARAM_READWRITE));
 301
 302   g_object_class_install_property (object_class,
 303                                    PROP_MAX_WIDTH,
 304                                    g_param_spec_int ("max-width",
 305                                                      P_("Maximum Width"),
 306                                                      P_("Maximum allowed width of the column"),
 307                                                      -1,
 308                                                      G_MAXINT,
 309                                                      -1,
 310                                                      GTK_PARAM_READWRITE));
 311
 312   g_object_class_install_property (object_class,
 313                                    PROP_TITLE,
 314                                    g_param_spec_string ("title",
 315                                                         P_("Title"),
 316                                                         P_("Title to appear in column header"),
 317                                                         "",
 318                                                         GTK_PARAM_READWRITE));
 319
 320   g_object_class_install_property (object_class,
 321                                    PROP_EXPAND,
 322                                    g_param_spec_boolean ("expand",
 323                                                          P_("Expand"),
 324                                                          P_("Column gets share of extra width allocated to the widget"),
 325                                                          FALSE,
 326                                                          GTK_PARAM_READWRITE));
 327
 328   g_object_class_install_property (object_class,
 329                                    PROP_CLICKABLE,
 330                                    g_param_spec_boolean ("clickable",
 331                                                         P_("Clickable"),
 332                                                         P_("Whether the header can be clicked"),
 333                                                          FALSE,
 334                                                          GTK_PARAM_READWRITE));
 335
 336
 337   g_object_class_install_property (object_class,
 338                                    PROP_WIDGET,
 339                                    g_param_spec_object ("widget",
 340                                                         P_("Widget"),
 341                                                         P_("Widget to put in column header button instead of column title"),
 342                                                         GTK_TYPE_WIDGET,
 343                                                         GTK_PARAM_READWRITE));
 344
 345   g_object_class_install_property (object_class,
 346                                    PROP_ALIGNMENT,
 347                                    g_param_spec_float ("alignment",
 348                                                        P_("Alignment"),
 349                                                        P_("X Alignment of the column header text or widget"),
 350                                                        0.0,
 351                                                        1.0,
 352                                                        0.0,
 353                                                        GTK_PARAM_READWRITE));
 354
 355   g_object_class_install_property (object_class,
 356                                    PROP_REORDERABLE,
 357                                    g_param_spec_boolean ("reorderable",
 358                                                          P_("Reorderable"),
 359                                                          P_("Whether the column can be reordered around the headers"),
 360                                                          FALSE,
 361                                                          GTK_PARAM_READWRITE));
 362
 363   g_object_class_install_property (object_class,
 364                                    PROP_SORT_INDICATOR,
 365                                    g_param_spec_boolean ("sort-indicator",
 366                                                         P_("Sort indicator"),
 367                                                         P_("Whether to show a sort indicator"),
 368                                                          FALSE,
 369                                                          GTK_PARAM_READWRITE));
 370
 371   g_object_class_install_property (object_class,
 372                                    PROP_SORT_ORDER,
 373                                    g_param_spec_enum ("sort-order",
 374                                                       P_("Sort order"),
 375                                                       P_("Sort direction the sort indicator should indicate"),
 376                                                       GTK_TYPE_SORT_TYPE,
 377                                                       GTK_SORT_ASCENDING,
 378                                                       GTK_PARAM_READWRITE));
 379
 380   /**
 381    * GtkTreeViewColumn:sort-column-id:
 382    *
 383    * Logical sort column ID this column sorts on when selected for sorting. Setting the sort column ID makes the column header
 384    * clickable. Set to %-1 to make the column unsortable.
 385    *
 386    * Since: 2.18
 387    **/
 388   g_object_class_install_property (object_class,
 389                                    PROP_SORT_COLUMN_ID,
 390                                    g_param_spec_int ("sort-column-id",
 391                                                      P_("Sort column ID"),
 392                                                      P_("Logical sort column ID this column sorts on when selected for sorting"),
 393                                                      -1,
 394                                                      G_MAXINT,
 395                                                      -1,
 396                                                      GTK_PARAM_READWRITE));
 397
 398   /**
 399    * GtkTreeViewColumn:cell-area:
 400    *
 401    * The #GtkCellArea used to layout cell renderers for this column.
 402    *
 403    * Since: 3.0
 404    */
 405   g_object_class_install_property (object_class,
 406                                    PROP_CELL_AREA,
 407                                    g_param_spec_object ("cell-area",
 408                                                         P_("Cell Area"),
 409                                                         P_("The GtkCellArea used to layout cells"),
 410                                                         GTK_TYPE_CELL_AREA,
 411                                                         GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
 412
 413   g_type_class_add_private (class, sizeof (GtkTreeViewColumnPrivate));
 414 }
 415
 416 static void
 417 gtk_tree_view_column_custom_tag_end (GtkBuildable *buildable,
 418                                      GtkBuilder   *builder,
 419                                      GObject      *child,
 420                                      const gchar  *tagname,
 421                                      gpointer     *data)
 422 {
 423   /* Just ignore the boolean return from here */
 424   _gtk_cell_layout_buildable_custom_tag_end (buildable, builder, child, tagname, data);
 425 }
 426
 427 static void
 428 gtk_tree_view_column_buildable_init (GtkBuildableIface *iface)
 429 {
 430   iface->add_child = _gtk_cell_layout_buildable_add_child;
 431   iface->custom_tag_start = _gtk_cell_layout_buildable_custom_tag_start;
 432   iface->custom_tag_end = gtk_tree_view_column_custom_tag_end;
 433 }
 434
 435 static void
 436 gtk_tree_view_column_cell_layout_init (GtkCellLayoutIface *iface)
 437 {
 438   iface->get_area = gtk_tree_view_column_cell_layout_get_area;
 439 }
 440
 441 static void
 442 gtk_tree_view_column_init (GtkTreeViewColumn *tree_column)
 443 {
 444   GtkTreeViewColumnPrivate *priv;
 445
 446   tree_column->priv = G_TYPE_INSTANCE_GET_PRIVATE (tree_column,
 447                                                    GTK_TYPE_TREE_VIEW_COLUMN,
 448                                                    GtkTreeViewColumnPrivate);
 449   priv = tree_column->priv;
 450
 451   priv->button = NULL;
 452   priv->xalign = 0.0;
 453   priv->width = 0;
 454   priv->padding = -1;
 455   priv->min_width = -1;
 456   priv->max_width = -1;
 457   priv->resized_width = 0;
 458   priv->column_type = GTK_TREE_VIEW_COLUMN_GROW_ONLY;
 459   priv->visible = TRUE;
 460   priv->resizable = FALSE;
 461   priv->expand = FALSE;
 462   priv->clickable = FALSE;
 463   priv->dirty = TRUE;
 464   priv->sort_order = GTK_SORT_ASCENDING;
 465   priv->show_sort_indicator = FALSE;
 466   priv->property_changed_signal = 0;
 467   priv->sort_clicked_signal = 0;
 468   priv->sort_column_changed_signal = 0;
 469   priv->sort_column_id = -1;
 470   priv->reorderable = FALSE;
 471   priv->maybe_reordered = FALSE;
 472   priv->fixed_width = 1;
 473   priv->use_resized_width = FALSE;
 474   priv->title = g_strdup ("");
 475 }
 476
 477 static GObject *
 478 gtk_tree_view_column_constructor (GType                    type,
 479                                   guint                    n_construct_properties,
 480                                   GObjectConstructParam   *construct_properties)
 481 {
 482   GtkTreeViewColumn        *tree_column;
 483   GtkTreeViewColumnPrivate *priv;
 484   GObject                  *object;
 485
 486   object = G_OBJECT_CLASS (gtk_tree_view_column_parent_class)->constructor
 487     (type, n_construct_properties, construct_properties);
 488
 489   tree_column = (GtkTreeViewColumn *) object;
 490   priv        = tree_column->priv;
 491
 492   if (!priv->cell_area)
 493     {
 494       priv->cell_area = gtk_cell_area_box_new ();
 495       g_object_ref_sink (priv->cell_area);
 496     }
 497
 498   gtk_cell_area_set_style_detail (priv->cell_area, "treeview");
 499
 500   priv->add_editable_signal =
 501     g_signal_connect (priv->cell_area, "add-editable",
 502                       G_CALLBACK (gtk_tree_view_column_add_editable_callback),
 503                       tree_column);
 504   priv->remove_editable_signal =
 505     g_signal_connect (priv->cell_area, "remove-editable",
 506                       G_CALLBACK (gtk_tree_view_column_remove_editable_callback),
 507                       tree_column);
 508
 509   priv->cell_area_context = gtk_cell_area_create_context (priv->cell_area);
 510
 511   priv->context_changed_signal =
 512     g_signal_connect (priv->cell_area_context, "notify",
 513                       G_CALLBACK (gtk_tree_view_column_context_changed), tree_column);
 514
 515   return object;
 516 }
 517
 518 static void
 519 gtk_tree_view_column_dispose (GObject *object)
 520 {
 521   GtkTreeViewColumn        *tree_column = (GtkTreeViewColumn *) object;
 522   GtkTreeViewColumnPrivate *priv        = tree_column->priv;
 523
 524   if (priv->cell_area_context)
 525     {
 526       g_signal_handler_disconnect (priv->cell_area_context,
 527                                    priv->context_changed_signal);
 528
 529       g_object_unref (priv->cell_area_context);
 530
 531       priv->cell_area_context = NULL;
 532       priv->context_changed_signal = 0;
 533     }
 534
 535   if (priv->cell_area)
 536     {
 537       g_signal_handler_disconnect (priv->cell_area,
 538                                    priv->add_editable_signal);
 539       g_signal_handler_disconnect (priv->cell_area,
 540                                    priv->remove_editable_signal);
 541
 542       g_object_unref (priv->cell_area);
 543       priv->cell_area = NULL;
 544       priv->add_editable_signal = 0;
 545       priv->remove_editable_signal = 0;
 546     }
 547
 548   if (priv->child)
 549     {
 550       g_object_unref (priv->child);
 551       priv->child = NULL;
 552     }
 553
 554   G_OBJECT_CLASS (gtk_tree_view_column_parent_class)->dispose (object);
 555 }
 556
 557 static void
 558 gtk_tree_view_column_finalize (GObject *object)
 559 {
 560   GtkTreeViewColumn        *tree_column = (GtkTreeViewColumn *) object;
 561   GtkTreeViewColumnPrivate *priv        = tree_column->priv;
 562
 563   g_free (priv->title);
 564
 565   G_OBJECT_CLASS (gtk_tree_view_column_parent_class)->finalize (object);
 566 }
 567
 568 static void
 569 gtk_tree_view_column_set_property (GObject         *object,
 570                                    guint            prop_id,
 571                                    const GValue    *value,
 572                                    GParamSpec      *pspec)
 573 {
 574   GtkTreeViewColumn *tree_column;
 575   GtkCellArea       *area;
 576
 577   tree_column = GTK_TREE_VIEW_COLUMN (object);
 578
 579   switch (prop_id)
 580     {
 581     case PROP_VISIBLE:
 582       gtk_tree_view_column_set_visible (tree_column,
 583                                         g_value_get_boolean (value));
 584       break;
 585
 586     case PROP_RESIZABLE:
 587       gtk_tree_view_column_set_resizable (tree_column,
 588                                           g_value_get_boolean (value));
 589       break;
 590
 591     case PROP_SIZING:
 592       gtk_tree_view_column_set_sizing (tree_column,
 593                                        g_value_get_enum (value));
 594       break;
 595
 596     case PROP_FIXED_WIDTH:
 597       gtk_tree_view_column_set_fixed_width (tree_column,
 598                                             g_value_get_int (value));
 599       break;
 600
 601     case PROP_MIN_WIDTH:
 602       gtk_tree_view_column_set_min_width (tree_column,
 603                                           g_value_get_int (value));
 604       break;
 605
 606     case PROP_MAX_WIDTH:
 607       gtk_tree_view_column_set_max_width (tree_column,
 608                                           g_value_get_int (value));
 609       break;
 610
 611     case PROP_SPACING:
 612       gtk_tree_view_column_set_spacing (tree_column,
 613                                         g_value_get_int (value));
 614       break;
 615
 616     case PROP_TITLE:
 617       gtk_tree_view_column_set_title (tree_column,
 618                                       g_value_get_string (value));
 619       break;
 620
 621     case PROP_EXPAND:
 622       gtk_tree_view_column_set_expand (tree_column,
 623                                        g_value_get_boolean (value));
 624       break;
 625
 626     case PROP_CLICKABLE:
 627       gtk_tree_view_column_set_clickable (tree_column,
 628                                           g_value_get_boolean (value));
 629       break;
 630
 631     case PROP_WIDGET:
 632       gtk_tree_view_column_set_widget (tree_column,
 633                                        (GtkWidget*) g_value_get_object (value));
 634       break;
 635
 636     case PROP_ALIGNMENT:
 637       gtk_tree_view_column_set_alignment (tree_column,
 638                                           g_value_get_float (value));
 639       break;
 640
 641     case PROP_REORDERABLE:
 642       gtk_tree_view_column_set_reorderable (tree_column,
 643                                             g_value_get_boolean (value));
 644       break;
 645
 646     case PROP_SORT_INDICATOR:
 647       gtk_tree_view_column_set_sort_indicator (tree_column,
 648                                                g_value_get_boolean (value));
 649       break;
 650
 651     case PROP_SORT_ORDER:
 652       gtk_tree_view_column_set_sort_order (tree_column,
 653                                            g_value_get_enum (value));
 654       break;
 655
 656     case PROP_SORT_COLUMN_ID:
 657       gtk_tree_view_column_set_sort_column_id (tree_column,
 658                                                g_value_get_int (value));
 659       break;
 660
 661     case PROP_CELL_AREA:
 662       /* Construct-only, can only be assigned once */
 663       area = g_value_get_object (value);
 664
 665       if (area)
 666         tree_column->priv->cell_area = g_object_ref_sink (area);
 667       break;
 668
 669     default:
 670       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 671       break;
 672     }
 673 }
 674
 675 static void
 676 gtk_tree_view_column_get_property (GObject         *object,
 677                                    guint            prop_id,
 678                                    GValue          *value,
 679                                    GParamSpec      *pspec)
 680 {
 681   GtkTreeViewColumn *tree_column;
 682
 683   tree_column = GTK_TREE_VIEW_COLUMN (object);
 684
 685   switch (prop_id)
 686     {
 687     case PROP_VISIBLE:
 688       g_value_set_boolean (value,
 689                            gtk_tree_view_column_get_visible (tree_column));
 690       break;
 691
 692     case PROP_RESIZABLE:
 693       g_value_set_boolean (value,
 694                            gtk_tree_view_column_get_resizable (tree_column));
 695       break;
 696
 697     case PROP_WIDTH:
 698       g_value_set_int (value,
 699                        gtk_tree_view_column_get_width (tree_column));
 700       break;
 701
 702     case PROP_SPACING:
 703       g_value_set_int (value,
 704                        gtk_tree_view_column_get_spacing (tree_column));
 705       break;
 706
 707     case PROP_SIZING:
 708       g_value_set_enum (value,
 709                         gtk_tree_view_column_get_sizing (tree_column));
 710       break;
 711
 712     case PROP_FIXED_WIDTH:
 713       g_value_set_int (value,
 714                        gtk_tree_view_column_get_fixed_width (tree_column));
 715       break;
 716
 717     case PROP_MIN_WIDTH:
 718       g_value_set_int (value,
 719                        gtk_tree_view_column_get_min_width (tree_column));
 720       break;
 721
 722     case PROP_MAX_WIDTH:
 723       g_value_set_int (value,
 724                        gtk_tree_view_column_get_max_width (tree_column));
 725       break;
 726
 727     case PROP_TITLE:
 728       g_value_set_string (value,
 729                           gtk_tree_view_column_get_title (tree_column));
 730       break;
 731
 732     case PROP_EXPAND:
 733       g_value_set_boolean (value,
 734                           gtk_tree_view_column_get_expand (tree_column));
 735       break;
 736
 737     case PROP_CLICKABLE:
 738       g_value_set_boolean (value,
 739                            gtk_tree_view_column_get_clickable (tree_column));
 740       break;
 741
 742     case PROP_WIDGET:
 743       g_value_set_object (value,
 744                           (GObject*) gtk_tree_view_column_get_widget (tree_column));
 745       break;
 746
 747     case PROP_ALIGNMENT:
 748       g_value_set_float (value,
 749                          gtk_tree_view_column_get_alignment (tree_column));
 750       break;
 751
 752     case PROP_REORDERABLE:
 753       g_value_set_boolean (value,
 754                            gtk_tree_view_column_get_reorderable (tree_column));
 755       break;
 756
 757     case PROP_SORT_INDICATOR:
 758       g_value_set_boolean (value,
 759                            gtk_tree_view_column_get_sort_indicator (tree_column));
 760       break;
 761
 762     case PROP_SORT_ORDER:
 763       g_value_set_enum (value,
 764                         gtk_tree_view_column_get_sort_order (tree_column));
 765       break;
 766
 767     case PROP_SORT_COLUMN_ID:
 768       g_value_set_int (value,
 769                        gtk_tree_view_column_get_sort_column_id (tree_column));
 770       break;
 771
 772     case PROP_CELL_AREA:
 773       g_value_set_object (value, tree_column->priv->cell_area);
 774       break;
 775
 776     default:
 777       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 778       break;
 779     }
 780 }
 781
 782 /* Implementation of GtkCellLayout interface
 783  */
 784 static GtkCellArea *
 785 gtk_tree_view_column_cell_layout_get_area (GtkCellLayout   *cell_layout)
 786 {
 787   GtkTreeViewColumn        *column = GTK_TREE_VIEW_COLUMN (cell_layout);
 788   GtkTreeViewColumnPrivate *priv   = column->priv;
 789
 790   return priv->cell_area;
 791 }
 792
 793 /* Button handling code
 794  */
 795 static void
 796 gtk_tree_view_column_create_button (GtkTreeViewColumn *tree_column)
 797 {
 798   GtkTreeViewColumnPrivate *priv = tree_column->priv;
 799   GtkTreeView *tree_view;
 800   GtkWidget *child;
 801   GtkWidget *hbox;
 802
 803   tree_view = (GtkTreeView *) priv->tree_view;
 804
 805   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
 806   g_return_if_fail (priv->button == NULL);
 807
 808   gtk_widget_push_composite_child ();
 809   priv->button = gtk_button_new ();
 810   gtk_widget_add_events (priv->button, GDK_POINTER_MOTION_MASK);
 811   gtk_widget_pop_composite_child ();
 812
 813   /* make sure we own a reference to it as well. */
 814   if (_gtk_tree_view_get_header_window (tree_view))
 815     gtk_widget_set_parent_window (priv->button, _gtk_tree_view_get_header_window (tree_view));
 816
 817   gtk_widget_set_parent (priv->button, GTK_WIDGET (tree_view));
 818
 819   g_signal_connect (priv->button, "event",
 820                     G_CALLBACK (gtk_tree_view_column_button_event),
 821                     tree_column);
 822   g_signal_connect (priv->button, "clicked",
 823                     G_CALLBACK (gtk_tree_view_column_button_clicked),
 824                     tree_column);
 825
 826   priv->alignment = gtk_alignment_new (priv->xalign, 0.5, 0.0, 0.0);
 827
 828   hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 2);
 829   priv->arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_IN);
 830
 831   if (priv->child)
 832     child = priv->child;
 833   else
 834     {
 835       child = gtk_label_new (priv->title);
 836       gtk_widget_show (child);
 837     }
 838
 839   g_signal_connect (child, "mnemonic-activate",
 840                     G_CALLBACK (gtk_tree_view_column_mnemonic_activate),
 841                     tree_column);
 842
 843   if (priv->xalign <= 0.5)
 844     gtk_box_pack_end (GTK_BOX (hbox), priv->arrow, FALSE, FALSE, 0);
 845   else
 846     gtk_box_pack_start (GTK_BOX (hbox), priv->arrow, FALSE, FALSE, 0);
 847
 848   gtk_box_pack_start (GTK_BOX (hbox), priv->alignment, TRUE, TRUE, 0);
 849
 850   gtk_container_add (GTK_CONTAINER (priv->alignment), child);
 851   gtk_container_add (GTK_CONTAINER (priv->button), hbox);
 852
 853   gtk_widget_show (hbox);
 854   gtk_widget_show (priv->alignment);
 855   gtk_tree_view_column_update_button (tree_column);
 856 }
 857
 858 static void
 859 gtk_tree_view_column_update_button (GtkTreeViewColumn *tree_column)
 860 {
 861   GtkTreeViewColumnPrivate *priv = tree_column->priv;
 862   gint sort_column_id = -1;
 863   GtkWidget *hbox;
 864   GtkWidget *alignment;
 865   GtkWidget *arrow;
 866   GtkWidget *current_child;
 867   GtkArrowType arrow_type = GTK_ARROW_NONE;
 868   GtkTreeModel *model;
 869
 870   if (priv->tree_view)
 871     model = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
 872   else
 873     model = NULL;
 874
 875   /* Create a button if necessary */
 876   if (priv->visible &&
 877       priv->button == NULL &&
 878       priv->tree_view &&
 879       gtk_widget_get_realized (priv->tree_view))
 880     gtk_tree_view_column_create_button (tree_column);
 881
 882   if (! priv->button)
 883     return;
 884
 885   hbox = gtk_bin_get_child (GTK_BIN (priv->button));
 886   alignment = priv->alignment;
 887   arrow = priv->arrow;
 888   current_child = gtk_bin_get_child (GTK_BIN (alignment));
 889
 890   /* Set up the actual button */
 891   gtk_alignment_set (GTK_ALIGNMENT (alignment), priv->xalign,
 892                      0.5, 0.0, 0.0);
 893
 894   if (priv->child)
 895     {
 896       if (current_child != priv->child)
 897         {
 898           gtk_container_remove (GTK_CONTAINER (alignment),
 899                                 current_child);
 900           gtk_container_add (GTK_CONTAINER (alignment),
 901                              priv->child);
 902         }
 903     }
 904   else
 905     {
 906       if (current_child == NULL)
 907         {
 908           current_child = gtk_label_new (NULL);
 909           gtk_widget_show (current_child);
 910           gtk_container_add (GTK_CONTAINER (alignment),
 911                              current_child);
 912         }
 913
 914       g_return_if_fail (GTK_IS_LABEL (current_child));
 915
 916       if (priv->title)
 917         gtk_label_set_text_with_mnemonic (GTK_LABEL (current_child),
 918                                           priv->title);
 919       else
 920         gtk_label_set_text_with_mnemonic (GTK_LABEL (current_child),
 921                                           "");
 922     }
 923
 924   if (GTK_IS_TREE_SORTABLE (model))
 925     gtk_tree_sortable_get_sort_column_id (GTK_TREE_SORTABLE (model),
 926                                           &sort_column_id,
 927                                           NULL);
 928
 929   if (priv->show_sort_indicator)
 930     {
 931       gboolean alternative;
 932
 933       g_object_get (gtk_widget_get_settings (priv->tree_view),
 934                     "gtk-alternative-sort-arrows", &alternative,
 935                     NULL);
 936
 937       switch (priv->sort_order)
 938         {
 939           case GTK_SORT_ASCENDING:
 940             arrow_type = alternative ? GTK_ARROW_UP : GTK_ARROW_DOWN;
 941             break;
 942
 943           case GTK_SORT_DESCENDING:
 944             arrow_type = alternative ? GTK_ARROW_DOWN : GTK_ARROW_UP;
 945             break;
 946
 947           default:
 948             g_warning (G_STRLOC": bad sort order");
 949             break;
 950         }
 951     }
 952
 953   gtk_arrow_set (GTK_ARROW (arrow),
 954                  arrow_type,
 955                  GTK_SHADOW_IN);
 956
 957   /* Put arrow on the right if the text is left-or-center justified, and on the
 958    * left otherwise; do this by packing boxes, so flipping text direction will
 959    * reverse things
 960    */
 961   g_object_ref (arrow);
 962   gtk_container_remove (GTK_CONTAINER (hbox), arrow);
 963
 964   if (priv->xalign <= 0.5)
 965     {
 966       gtk_box_pack_end (GTK_BOX (hbox), arrow, FALSE, FALSE, 0);
 967     }
 968   else
 969     {
 970       gtk_box_pack_start (GTK_BOX (hbox), arrow, FALSE, FALSE, 0);
 971       /* move it to the front */
 972       gtk_box_reorder_child (GTK_BOX (hbox), arrow, 0);
 973     }
 974   g_object_unref (arrow);
 975
 976   if (priv->show_sort_indicator
 977       || (GTK_IS_TREE_SORTABLE (model) && priv->sort_column_id >= 0))
 978     gtk_widget_show (arrow);
 979   else
 980     gtk_widget_hide (arrow);
 981
 982   /* It's always safe to hide the button.  It isn't always safe to show it, as
 983    * if you show it before it's realized, it'll get the wrong window. */
 984   if (priv->button &&
 985       priv->tree_view != NULL &&
 986       gtk_widget_get_realized (priv->tree_view))
 987     {
 988       if (priv->visible)
 989         {
 990           if (gdk_window_is_visible (_gtk_tree_view_get_header_window (GTK_TREE_VIEW (priv->tree_view))))
 991             gtk_widget_show_now (priv->button);
 992
 993           if (priv->window)
 994             {
 995               if (priv->resizable)
 996                 {
 997                   gdk_window_show (priv->window);
 998                   gdk_window_raise (priv->window);
 999                 }
1000               else
1001                 {
1002                   gdk_window_hide (priv->window);
1003                 }
1004             }
1005         }
1006       else
1007         {
1008           gtk_widget_hide (priv->button);
1009           if (priv->window)
1010             gdk_window_hide (priv->window);
1011         }
1012     }
1013
1014   if (priv->reorderable || priv->clickable)
1015     {
1016       gtk_widget_set_can_focus (priv->button, TRUE);
1017     }
1018   else
1019     {
1020       gtk_widget_set_can_focus (priv->button, FALSE);
1021       if (gtk_widget_has_focus (priv->button))
1022         {
1023           GtkWidget *toplevel = gtk_widget_get_toplevel (priv->tree_view);
1024           if (gtk_widget_is_toplevel (toplevel))
1025             {
1026               gtk_window_set_focus (GTK_WINDOW (toplevel), NULL);
1027             }
1028         }
1029     }
1030   /* Queue a resize on the assumption that we always want to catch all changes
1031    * and columns don't change all that often.
1032    */
1033   if (gtk_widget_get_realized (priv->tree_view))
1034      gtk_widget_queue_resize (priv->tree_view);
1035
1036 }
1037
1038 /* Button signal handlers
1039  */
1040
1041 static gint
1042 gtk_tree_view_column_button_event (GtkWidget *widget,
1043                                    GdkEvent  *event,
1044                                    gpointer   data)
1045 {
1046   GtkTreeViewColumn        *column = (GtkTreeViewColumn *) data;
1047   GtkTreeViewColumnPrivate *priv   = column->priv;
1048
1049   g_return_val_if_fail (event != NULL, FALSE);
1050
1051   if (event->type == GDK_BUTTON_PRESS &&
1052       priv->reorderable &&
1053       ((GdkEventButton *)event)->button == 1)
1054     {
1055       priv->maybe_reordered = TRUE;
1056       gdk_window_get_pointer (gtk_button_get_event_window (GTK_BUTTON (widget)),
1057                               &priv->drag_x,
1058                               &priv->drag_y,
1059                               NULL);
1060       gtk_widget_grab_focus (widget);
1061     }
1062
1063   if (event->type == GDK_BUTTON_RELEASE ||
1064       event->type == GDK_LEAVE_NOTIFY)
1065     priv->maybe_reordered = FALSE;
1066
1067   if (event->type == GDK_MOTION_NOTIFY &&
1068       priv->maybe_reordered &&
1069       (gtk_drag_check_threshold (widget,
1070                                  priv->drag_x,
1071                                  priv->drag_y,
1072                                  (gint) ((GdkEventMotion *)event)->x,
1073                                  (gint) ((GdkEventMotion *)event)->y)))
1074     {
1075       priv->maybe_reordered = FALSE;
1076       _gtk_tree_view_column_start_drag (GTK_TREE_VIEW (priv->tree_view), column,
1077                                         event->motion.device);
1078       return TRUE;
1079     }
1080
1081   if (priv->clickable == FALSE)
1082     {
1083       switch (event->type)
1084         {
1085         case GDK_BUTTON_PRESS:
1086         case GDK_2BUTTON_PRESS:
1087         case GDK_3BUTTON_PRESS:
1088         case GDK_MOTION_NOTIFY:
1089         case GDK_BUTTON_RELEASE:
1090         case GDK_ENTER_NOTIFY:
1091         case GDK_LEAVE_NOTIFY:
1092           return TRUE;
1093         default:
1094           return FALSE;
1095         }
1096     }
1097   return FALSE;
1098 }
1099
1100
1101 static void
1102 gtk_tree_view_column_button_clicked (GtkWidget *widget, gpointer data)
1103 {
1104   g_signal_emit_by_name (data, "clicked");
1105 }
1106
1107 static gboolean
1108 gtk_tree_view_column_mnemonic_activate (GtkWidget *widget,
1109                                         gboolean   group_cycling,
1110                                         gpointer   data)
1111 {
1112   GtkTreeViewColumn        *column = (GtkTreeViewColumn *)data;
1113   GtkTreeViewColumnPrivate *priv   = column->priv;
1114
1115   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), FALSE);
1116
1117   _gtk_tree_view_set_focus_column (GTK_TREE_VIEW (priv->tree_view), column);
1118
1119   if (priv->clickable)
1120     gtk_button_clicked (GTK_BUTTON (priv->button));
1121   else if (gtk_widget_get_can_focus (priv->button))
1122     gtk_widget_grab_focus (priv->button);
1123   else
1124     gtk_widget_grab_focus (priv->tree_view);
1125
1126   return TRUE;
1127 }
1128
1129 static void
1130 gtk_tree_view_model_sort_column_changed (GtkTreeSortable   *sortable,
1131                                          GtkTreeViewColumn *column)
1132 {
1133   GtkTreeViewColumnPrivate *priv = column->priv;
1134   gint sort_column_id;
1135   GtkSortType order;
1136
1137   if (gtk_tree_sortable_get_sort_column_id (sortable,
1138                                             &sort_column_id,
1139                                             &order))
1140     {
1141       if (sort_column_id == priv->sort_column_id)
1142         {
1143           gtk_tree_view_column_set_sort_indicator (column, TRUE);
1144           gtk_tree_view_column_set_sort_order (column, order);
1145         }
1146       else
1147         {
1148           gtk_tree_view_column_set_sort_indicator (column, FALSE);
1149         }
1150     }
1151   else
1152     {
1153       gtk_tree_view_column_set_sort_indicator (column, FALSE);
1154     }
1155 }
1156
1157 static void
1158 gtk_tree_view_column_sort (GtkTreeViewColumn *tree_column,
1159                            gpointer           data)
1160 {
1161   GtkTreeViewColumnPrivate *priv = tree_column->priv;
1162   GtkTreeModel *model;
1163   GtkTreeSortable *sortable;
1164   gint sort_column_id;
1165   GtkSortType order;
1166   gboolean has_sort_column;
1167   gboolean has_default_sort_func;
1168
1169   g_return_if_fail (priv->tree_view != NULL);
1170
1171   model    = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
1172   sortable = GTK_TREE_SORTABLE (model);
1173
1174   has_sort_column =
1175     gtk_tree_sortable_get_sort_column_id (sortable,
1176                                           &sort_column_id,
1177                                           &order);
1178   has_default_sort_func =
1179     gtk_tree_sortable_has_default_sort_func (sortable);
1180
1181   if (has_sort_column &&
1182       sort_column_id == priv->sort_column_id)
1183     {
1184       if (order == GTK_SORT_ASCENDING)
1185         gtk_tree_sortable_set_sort_column_id (sortable,
1186                                               priv->sort_column_id,
1187                                               GTK_SORT_DESCENDING);
1188       else if (order == GTK_SORT_DESCENDING && has_default_sort_func)
1189         gtk_tree_sortable_set_sort_column_id (sortable,
1190                                               GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID,
1191                                               GTK_SORT_ASCENDING);
1192       else
1193         gtk_tree_sortable_set_sort_column_id (sortable,
1194                                               priv->sort_column_id,
1195                                               GTK_SORT_ASCENDING);
1196     }
1197   else
1198     {
1199       gtk_tree_sortable_set_sort_column_id (sortable,
1200                                             priv->sort_column_id,
1201                                             GTK_SORT_ASCENDING);
1202     }
1203 }
1204
1205 static void
1206 gtk_tree_view_column_setup_sort_column_id_callback (GtkTreeViewColumn *tree_column)
1207 {
1208   GtkTreeViewColumnPrivate *priv = tree_column->priv;
1209   GtkTreeModel *model;
1210
1211   if (priv->tree_view == NULL)
1212     return;
1213
1214   model = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
1215
1216   if (model == NULL)
1217     return;
1218
1219   if (GTK_IS_TREE_SORTABLE (model) &&
1220       priv->sort_column_id != -1)
1221     {
1222       gint real_sort_column_id;
1223       GtkSortType real_order;
1224
1225       if (priv->sort_column_changed_signal == 0)
1226         priv->sort_column_changed_signal =
1227           g_signal_connect (model, "sort-column-changed",
1228                             G_CALLBACK (gtk_tree_view_model_sort_column_changed),
1229                             tree_column);
1230
1231       if (gtk_tree_sortable_get_sort_column_id (GTK_TREE_SORTABLE (model),
1232                                                 &real_sort_column_id,
1233                                                 &real_order) &&
1234           (real_sort_column_id == priv->sort_column_id))
1235         {
1236           gtk_tree_view_column_set_sort_indicator (tree_column, TRUE);
1237           gtk_tree_view_column_set_sort_order (tree_column, real_order);
1238         }
1239       else
1240         {
1241           gtk_tree_view_column_set_sort_indicator (tree_column, FALSE);
1242         }
1243    }
1244 }
1245
1246 static void
1247 gtk_tree_view_column_context_changed  (GtkCellAreaContext      *context,
1248                                        GParamSpec              *pspec,
1249                                        GtkTreeViewColumn       *tree_column)
1250 {
1251   /* Here we want the column re-requested if the underlying context was
1252    * actually reset for any reason, this can happen if the underlying
1253    * area/cell configuration changes (i.e. cell packing properties
1254    * or cell spacing and the like)
1255    *
1256    * Note that we block this handler while requesting for sizes
1257    * so there is no need to check for the new context size being -1,
1258    * we also block the handler when explicitly resetting the context
1259    * so as to avoid some infinite stack recursion.
1260    */
1261   if (!strcmp (pspec->name, "minimum-width") ||
1262       !strcmp (pspec->name, "natural-width") ||
1263       !strcmp (pspec->name, "minimum-height") ||
1264       !strcmp (pspec->name, "natural-height"))
1265     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
1266 }
1267
1268 static void
1269 gtk_tree_view_column_add_editable_callback (GtkCellArea       *area,
1270                                             GtkCellRenderer   *renderer,
1271                                             GtkCellEditable   *edit_widget,
1272                                             GdkRectangle      *cell_area,
1273                                             const gchar       *path_string,
1274                                             gpointer           user_data)
1275 {
1276   GtkTreeViewColumn        *column = user_data;
1277   GtkTreeViewColumnPrivate *priv   = column->priv;
1278   GtkTreePath              *path;
1279
1280   if (priv->tree_view)
1281     {
1282       path = gtk_tree_path_new_from_string (path_string);
1283
1284       _gtk_tree_view_add_editable (GTK_TREE_VIEW (priv->tree_view),
1285                                    column,
1286                                    path,
1287                                    edit_widget,
1288                                    cell_area);
1289
1290       gtk_tree_path_free (path);
1291     }
1292 }
1293
1294 static void
1295 gtk_tree_view_column_remove_editable_callback (GtkCellArea     *area,
1296                                                GtkCellRenderer *renderer,
1297                                                GtkCellEditable *edit_widget,
1298                                                gpointer         user_data)
1299 {
1300   GtkTreeViewColumn        *column = user_data;
1301   GtkTreeViewColumnPrivate *priv   = column->priv;
1302
1303   if (priv->tree_view)
1304     _gtk_tree_view_remove_editable (GTK_TREE_VIEW (priv->tree_view),
1305                                     column,
1306                                     edit_widget);
1307 }
1308
1309 /* Exported Private Functions.
1310  * These should only be called by gtktreeview.c or gtktreeviewcolumn.c
1311  */
1312 void
1313 _gtk_tree_view_column_realize_button (GtkTreeViewColumn *column)
1314 {
1315   GtkTreeViewColumnPrivate *priv = column->priv;
1316   GtkAllocation allocation;
1317   GtkTreeView *tree_view;
1318   GdkWindowAttr attr;
1319   guint attributes_mask;
1320   gboolean rtl;
1321
1322   tree_view = (GtkTreeView *)priv->tree_view;
1323   rtl       = (gtk_widget_get_direction (priv->tree_view) == GTK_TEXT_DIR_RTL);
1324
1325   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
1326   g_return_if_fail (gtk_widget_get_realized (priv->tree_view));
1327   g_return_if_fail (priv->button != NULL);
1328
1329   g_return_if_fail (_gtk_tree_view_get_header_window (tree_view) != NULL);
1330   gtk_widget_set_parent_window (priv->button, _gtk_tree_view_get_header_window (tree_view));
1331
1332   attr.window_type = GDK_WINDOW_CHILD;
1333   attr.wclass = GDK_INPUT_ONLY;
1334   attr.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
1335   attr.event_mask = gtk_widget_get_events (GTK_WIDGET (tree_view)) |
1336                     (GDK_BUTTON_PRESS_MASK |
1337                      GDK_BUTTON_RELEASE_MASK |
1338                      GDK_POINTER_MOTION_MASK |
1339                      GDK_POINTER_MOTION_HINT_MASK |
1340                      GDK_KEY_PRESS_MASK);
1341   attributes_mask = GDK_WA_CURSOR | GDK_WA_X | GDK_WA_Y;
1342   attr.cursor = gdk_cursor_new_for_display
1343     (gdk_window_get_display (_gtk_tree_view_get_header_window (tree_view)), GDK_SB_H_DOUBLE_ARROW);
1344   attr.y = 0;
1345   attr.width = TREE_VIEW_DRAG_WIDTH;
1346   attr.height = _gtk_tree_view_get_header_height (tree_view);
1347
1348   gtk_widget_get_allocation (priv->button, &allocation);
1349   attr.x       = (allocation.x + (rtl ? 0 : allocation.width)) - TREE_VIEW_DRAG_WIDTH / 2;
1350   priv->window = gdk_window_new (_gtk_tree_view_get_header_window (tree_view),
1351                                  &attr, attributes_mask);
1352   gdk_window_set_user_data (priv->window, tree_view);
1353
1354   gtk_tree_view_column_update_button (column);
1355
1356   g_object_unref (attr.cursor);
1357 }
1358
1359 void
1360 _gtk_tree_view_column_unrealize_button (GtkTreeViewColumn *column)
1361 {
1362   GtkTreeViewColumnPrivate *priv;
1363
1364   g_return_if_fail (column != NULL);
1365
1366   priv = column->priv;
1367   g_return_if_fail (priv->window != NULL);
1368
1369   gdk_window_set_user_data (priv->window, NULL);
1370   gdk_window_destroy (priv->window);
1371   priv->window = NULL;
1372 }
1373
1374 void
1375 _gtk_tree_view_column_unset_model (GtkTreeViewColumn *column,
1376                                    GtkTreeModel      *old_model)
1377 {
1378   GtkTreeViewColumnPrivate *priv = column->priv;
1379
1380   if (priv->sort_column_changed_signal)
1381     {
1382       g_signal_handler_disconnect (old_model,
1383                                    priv->sort_column_changed_signal);
1384       priv->sort_column_changed_signal = 0;
1385     }
1386   gtk_tree_view_column_set_sort_indicator (column, FALSE);
1387 }
1388
1389 void
1390 _gtk_tree_view_column_set_tree_view (GtkTreeViewColumn *column,
1391                                      GtkTreeView       *tree_view)
1392 {
1393   GtkTreeViewColumnPrivate *priv = column->priv;
1394
1395   g_assert (priv->tree_view == NULL);
1396
1397   priv->tree_view = GTK_WIDGET (tree_view);
1398   gtk_tree_view_column_create_button (column);
1399
1400   priv->property_changed_signal =
1401     g_signal_connect_swapped (tree_view,
1402                               "notify::model",
1403                               G_CALLBACK (gtk_tree_view_column_setup_sort_column_id_callback),
1404                               column);
1405
1406   gtk_tree_view_column_setup_sort_column_id_callback (column);
1407 }
1408
1409 void
1410 _gtk_tree_view_column_unset_tree_view (GtkTreeViewColumn *column)
1411 {
1412   GtkTreeViewColumnPrivate *priv = column->priv;
1413
1414   if (priv->tree_view && priv->button)
1415     {
1416       gtk_container_remove (GTK_CONTAINER (priv->tree_view), priv->button);
1417     }
1418   if (priv->property_changed_signal)
1419     {
1420       g_signal_handler_disconnect (priv->tree_view, priv->property_changed_signal);
1421       priv->property_changed_signal = 0;
1422     }
1423
1424   if (priv->sort_column_changed_signal)
1425     {
1426       g_signal_handler_disconnect (gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view)),
1427                                    priv->sort_column_changed_signal);
1428       priv->sort_column_changed_signal = 0;
1429     }
1430
1431   priv->tree_view = NULL;
1432   priv->button = NULL;
1433 }
1434
1435 gboolean
1436 _gtk_tree_view_column_has_editable_cell (GtkTreeViewColumn *column)
1437 {
1438   GtkTreeViewColumnPrivate *priv = column->priv;
1439   gboolean ret = FALSE;
1440   GList *list, *cells;
1441
1442   cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (priv->cell_area));
1443
1444   for (list = cells; list; list = list->next)
1445     {
1446       GtkCellRenderer *cell = list->data;
1447       GtkCellRendererMode mode;
1448
1449       g_object_get (cell, "mode", &mode, NULL);
1450
1451       if (mode == GTK_CELL_RENDERER_MODE_EDITABLE)
1452         {
1453           ret = TRUE;
1454           break;
1455         }
1456     }
1457
1458   g_list_free (cells);
1459
1460   return ret;
1461 }
1462
1463 /* gets cell being edited */
1464 GtkCellRenderer *
1465 _gtk_tree_view_column_get_edited_cell (GtkTreeViewColumn *column)
1466 {
1467   GtkTreeViewColumnPrivate *priv = column->priv;
1468
1469   return gtk_cell_area_get_edited_cell (priv->cell_area);
1470 }
1471
1472 GtkCellRenderer *
1473 _gtk_tree_view_column_get_cell_at_pos (GtkTreeViewColumn *column,
1474                                        GdkRectangle      *cell_area,
1475                                        GdkRectangle      *background_area,
1476                                        gint               x,
1477                                        gint               y)
1478 {
1479   GtkCellRenderer *match = NULL;
1480   GtkTreeViewColumnPrivate *priv = column->priv;
1481
1482   /* If (x, y) is outside of the background area, immediately return */
1483   if (x < background_area->x ||
1484       x > background_area->x + background_area->width ||
1485       y < background_area->y ||
1486       y > background_area->y + background_area->height)
1487     return NULL;
1488
1489   /* If (x, y) is inside the background area, clamp it to the cell_area
1490    * so that a cell is still returned.  The main reason for doing this
1491    * (on the x axis) is for handling clicks in the indentation area
1492    * (either at the left or right depending on RTL setting).  Another
1493    * reason is for handling clicks on the area where the focus rectangle
1494    * is drawn (this is outside of cell area), this manifests itself
1495    * mainly when a large setting is used for focus-line-width.
1496    */
1497   if (x < cell_area->x)
1498     x = cell_area->x;
1499   else if (x > cell_area->x + cell_area->width)
1500     x = cell_area->x + cell_area->width;
1501
1502   if (y < cell_area->y)
1503     y = cell_area->y;
1504   else if (y > cell_area->y + cell_area->height)
1505     y = cell_area->y + cell_area->height;
1506
1507   match = gtk_cell_area_get_cell_at_position (priv->cell_area,
1508                                               priv->cell_area_context,
1509                                               priv->tree_view,
1510                                               cell_area,
1511                                               x, y,
1512                                               NULL);
1513
1514   return match;
1515 }
1516
1517 /* Public Functions */
1518
1519
1520 /**
1521  * gtk_tree_view_column_new:
1522  *
1523  * Creates a new #GtkTreeViewColumn.
1524  *
1525  * Return value: A newly created #GtkTreeViewColumn.
1526  **/
1527 GtkTreeViewColumn *
1528 gtk_tree_view_column_new (void)
1529 {
1530   GtkTreeViewColumn *tree_column;
1531
1532   tree_column = g_object_new (GTK_TYPE_TREE_VIEW_COLUMN, NULL);
1533
1534   return tree_column;
1535 }
1536
1537 /**
1538  * gtk_tree_view_column_new_with_area:
1539  * @area: the #GtkCellArea that the newly created column should use to layout cells.
1540  *
1541  * Creates a new #GtkTreeViewColumn using @area to render it's cells.
1542  *
1543  * Return value: A newly created #GtkTreeViewColumn.
1544  *
1545  * Since: 3.0
1546  */
1547 GtkTreeViewColumn *
1548 gtk_tree_view_column_new_with_area (GtkCellArea *area)
1549 {
1550   GtkTreeViewColumn *tree_column;
1551
1552   tree_column = g_object_new (GTK_TYPE_TREE_VIEW_COLUMN, "cell-area", area, NULL);
1553
1554   return tree_column;
1555 }
1556
1557
1558 /**
1559  * gtk_tree_view_column_new_with_attributes:
1560  * @title: The title to set the header to.
1561  * @cell: The #GtkCellRenderer.
1562  * @Varargs: A %NULL-terminated list of attributes.
1563  *
1564  * Creates a new #GtkTreeViewColumn with a number of default values.  This is
1565  * equivalent to calling gtk_tree_view_column_set_title(),
1566  * gtk_tree_view_column_pack_start(), and
1567  * gtk_tree_view_column_set_attributes() on the newly created #GtkTreeViewColumn.
1568  *
1569  * Here's a simple example:
1570  * |[
1571  *  enum { TEXT_COLUMN, COLOR_COLUMN, N_COLUMNS };
1572  *  ...
1573  *  {
1574  *    GtkTreeViewColumn *column;
1575  *    GtkCellRenderer   *renderer = gtk_cell_renderer_text_new ();
1576  *
1577  *    column = gtk_tree_view_column_new_with_attributes ("Title",
1578  *                                                       renderer,
1579  *                                                       "text", TEXT_COLUMN,
1580  *                                                       "foreground", COLOR_COLUMN,
1581  *                                                       NULL);
1582  *  }
1583  * ]|
1584  *
1585  * Return value: A newly created #GtkTreeViewColumn.
1586  **/
1587 GtkTreeViewColumn *
1588 gtk_tree_view_column_new_with_attributes (const gchar     *title,
1589                                           GtkCellRenderer *cell,
1590                                           ...)
1591 {
1592   GtkTreeViewColumn *retval;
1593   va_list args;
1594
1595   retval = gtk_tree_view_column_new ();
1596
1597   gtk_tree_view_column_set_title (retval, title);
1598   gtk_tree_view_column_pack_start (retval, cell, TRUE);
1599
1600   va_start (args, cell);
1601   gtk_tree_view_column_set_attributesv (retval, cell, args);
1602   va_end (args);
1603
1604   return retval;
1605 }
1606
1607 /**
1608  * gtk_tree_view_column_pack_start:
1609  * @tree_column: A #GtkTreeViewColumn.
1610  * @cell: The #GtkCellRenderer.
1611  * @expand: %TRUE if @cell is to be given extra space allocated to @tree_column.
1612  *
1613  * Packs the @cell into the beginning of the column. If @expand is %FALSE, then
1614  * the @cell is allocated no more space than it needs. Any unused space is divided
1615  * evenly between cells for which @expand is %TRUE.
1616  **/
1617 void
1618 gtk_tree_view_column_pack_start (GtkTreeViewColumn *tree_column,
1619                                  GtkCellRenderer   *cell,
1620                                  gboolean           expand)
1621 {
1622   gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (tree_column), cell, expand);
1623 }
1624
1625 /**
1626  * gtk_tree_view_column_pack_end:
1627  * @tree_column: A #GtkTreeViewColumn.
1628  * @cell: The #GtkCellRenderer.
1629  * @expand: %TRUE if @cell is to be given extra space allocated to @tree_column.
1630  *
1631  * Adds the @cell to end of the column. If @expand is %FALSE, then the @cell
1632  * is allocated no more space than it needs. Any unused space is divided
1633  * evenly between cells for which @expand is %TRUE.
1634  **/
1635 void
1636 gtk_tree_view_column_pack_end (GtkTreeViewColumn  *tree_column,
1637                                GtkCellRenderer    *cell,
1638                                gboolean            expand)
1639 {
1640   gtk_cell_layout_pack_end (GTK_CELL_LAYOUT (tree_column), cell, expand);
1641 }
1642
1643 /**
1644  * gtk_tree_view_column_clear:
1645  * @tree_column: A #GtkTreeViewColumn
1646  *
1647  * Unsets all the mappings on all renderers on the @tree_column.
1648  **/
1649 void
1650 gtk_tree_view_column_clear (GtkTreeViewColumn *tree_column)
1651 {
1652   gtk_cell_layout_clear (GTK_CELL_LAYOUT (tree_column));
1653 }
1654
1655 /**
1656  * gtk_tree_view_column_add_attribute:
1657  * @tree_column: A #GtkTreeViewColumn.
1658  * @cell_renderer: the #GtkCellRenderer to set attributes on
1659  * @attribute: An attribute on the renderer
1660  * @column: The column position on the model to get the attribute from.
1661  *
1662  * Adds an attribute mapping to the list in @tree_column.  The @column is the
1663  * column of the model to get a value from, and the @attribute is the
1664  * parameter on @cell_renderer to be set from the value. So for example
1665  * if column 2 of the model contains strings, you could have the
1666  * "text" attribute of a #GtkCellRendererText get its values from
1667  * column 2.
1668  **/
1669 void
1670 gtk_tree_view_column_add_attribute (GtkTreeViewColumn *tree_column,
1671                                     GtkCellRenderer   *cell_renderer,
1672                                     const gchar       *attribute,
1673                                     gint               column)
1674 {
1675   gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (tree_column),
1676                                  cell_renderer, attribute, column);
1677 }
1678
1679 static void
1680 gtk_tree_view_column_set_attributesv (GtkTreeViewColumn *tree_column,
1681                                       GtkCellRenderer   *cell_renderer,
1682                                       va_list            args)
1683 {
1684   GtkTreeViewColumnPrivate *priv = tree_column->priv;
1685   gchar *attribute;
1686   gint column;
1687
1688   attribute = va_arg (args, gchar *);
1689
1690   gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (priv->cell_area),
1691                                     cell_renderer);
1692
1693   while (attribute != NULL)
1694     {
1695       column = va_arg (args, gint);
1696       gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (priv->cell_area),
1697                                      cell_renderer, attribute, column);
1698       attribute = va_arg (args, gchar *);
1699     }
1700 }
1701
1702 /**
1703  * gtk_tree_view_column_set_attributes:
1704  * @tree_column: A #GtkTreeViewColumn.
1705  * @cell_renderer: the #GtkCellRenderer we're setting the attributes of
1706  * @Varargs: A %NULL-terminated list of attributes.
1707  *
1708  * Sets the attributes in the list as the attributes of @tree_column.
1709  * The attributes should be in attribute/column order, as in
1710  * gtk_tree_view_column_add_attribute(). All existing attributes
1711  * are removed, and replaced with the new attributes.
1712  **/
1713 void
1714 gtk_tree_view_column_set_attributes (GtkTreeViewColumn *tree_column,
1715                                      GtkCellRenderer   *cell_renderer,
1716                                      ...)
1717 {
1718   va_list args;
1719
1720   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1721   g_return_if_fail (GTK_IS_CELL_RENDERER (cell_renderer));
1722
1723   va_start (args, cell_renderer);
1724   gtk_tree_view_column_set_attributesv (tree_column, cell_renderer, args);
1725   va_end (args);
1726 }
1727
1728
1729 /**
1730  * gtk_tree_view_column_set_cell_data_func:
1731  * @tree_column: A #GtkTreeViewColumn
1732  * @cell_renderer: A #GtkCellRenderer
1733  * @func: The #GtkTreeViewColumnFunc to use.
1734  * @func_data: The user data for @func.
1735  * @destroy: The destroy notification for @func_data
1736  *
1737  * Sets the #GtkTreeViewColumnFunc to use for the column.  This
1738  * function is used instead of the standard attributes mapping for
1739  * setting the column value, and should set the value of @tree_column's
1740  * cell renderer as appropriate.  @func may be %NULL to remove an
1741  * older one.
1742  **/
1743 void
1744 gtk_tree_view_column_set_cell_data_func (GtkTreeViewColumn   *tree_column,
1745                                          GtkCellRenderer     *cell_renderer,
1746                                          GtkTreeCellDataFunc  func,
1747                                          gpointer             func_data,
1748                                          GDestroyNotify       destroy)
1749 {
1750   gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (tree_column),
1751                                       cell_renderer,
1752                                       (GtkCellLayoutDataFunc)func,
1753                                       func_data, destroy);
1754 }
1755
1756
1757 /**
1758  * gtk_tree_view_column_clear_attributes:
1759  * @tree_column: a #GtkTreeViewColumn
1760  * @cell_renderer: a #GtkCellRenderer to clear the attribute mapping on.
1761  *
1762  * Clears all existing attributes previously set with
1763  * gtk_tree_view_column_set_attributes().
1764  **/
1765 void
1766 gtk_tree_view_column_clear_attributes (GtkTreeViewColumn *tree_column,
1767                                        GtkCellRenderer   *cell_renderer)
1768 {
1769   gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (tree_column),
1770                                     cell_renderer);
1771 }
1772
1773 /**
1774  * gtk_tree_view_column_set_spacing:
1775  * @tree_column: A #GtkTreeViewColumn.
1776  * @spacing: distance between cell renderers in pixels.
1777  *
1778  * Sets the spacing field of @tree_column, which is the number of pixels to
1779  * place between cell renderers packed into it.
1780  **/
1781 void
1782 gtk_tree_view_column_set_spacing (GtkTreeViewColumn *tree_column,
1783                                   gint               spacing)
1784 {
1785   GtkTreeViewColumnPrivate *priv;
1786
1787   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1788   g_return_if_fail (spacing >= 0);
1789
1790   priv = tree_column->priv;
1791
1792   gtk_cell_area_box_set_spacing (GTK_CELL_AREA_BOX (priv->cell_area),
1793                                  spacing);
1794   if (priv->tree_view)
1795     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
1796 }
1797
1798 /**
1799  * gtk_tree_view_column_get_spacing:
1800  * @tree_column: A #GtkTreeViewColumn.
1801  *
1802  * Returns the spacing of @tree_column.
1803  *
1804  * Return value: the spacing of @tree_column.
1805  **/
1806 gint
1807 gtk_tree_view_column_get_spacing (GtkTreeViewColumn *tree_column)
1808 {
1809   GtkTreeViewColumnPrivate *priv;
1810
1811   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
1812
1813   priv = tree_column->priv;
1814
1815   return gtk_cell_area_box_get_spacing (GTK_CELL_AREA_BOX (priv->cell_area));
1816 }
1817
1818 /* Options for manipulating the columns */
1819
1820 /**
1821  * gtk_tree_view_column_set_visible:
1822  * @tree_column: A #GtkTreeViewColumn.
1823  * @visible: %TRUE if the @tree_column is visible.
1824  *
1825  * Sets the visibility of @tree_column.
1826  **/
1827 void
1828 gtk_tree_view_column_set_visible (GtkTreeViewColumn *tree_column,
1829                                   gboolean           visible)
1830 {
1831   GtkTreeViewColumnPrivate *priv;
1832
1833   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1834
1835   priv    = tree_column->priv;
1836   visible = !! visible;
1837
1838   if (priv->visible == visible)
1839     return;
1840
1841   priv->visible = visible;
1842
1843   if (priv->visible)
1844     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
1845
1846   gtk_tree_view_column_update_button (tree_column);
1847   g_object_notify (G_OBJECT (tree_column), "visible");
1848 }
1849
1850 /**
1851  * gtk_tree_view_column_get_visible:
1852  * @tree_column: A #GtkTreeViewColumn.
1853  *
1854  * Returns %TRUE if @tree_column is visible.
1855  *
1856  * Return value: whether the column is visible or not.  If it is visible, then
1857  * the tree will show the column.
1858  **/
1859 gboolean
1860 gtk_tree_view_column_get_visible (GtkTreeViewColumn *tree_column)
1861 {
1862   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
1863
1864   return tree_column->priv->visible;
1865 }
1866
1867 /**
1868  * gtk_tree_view_column_set_resizable:
1869  * @tree_column: A #GtkTreeViewColumn
1870  * @resizable: %TRUE, if the column can be resized
1871  *
1872  * If @resizable is %TRUE, then the user can explicitly resize the column by
1873  * grabbing the outer edge of the column button.  If resizable is %TRUE and
1874  * sizing mode of the column is #GTK_TREE_VIEW_COLUMN_AUTOSIZE, then the sizing
1875  * mode is changed to #GTK_TREE_VIEW_COLUMN_GROW_ONLY.
1876  **/
1877 void
1878 gtk_tree_view_column_set_resizable (GtkTreeViewColumn *tree_column,
1879                                     gboolean           resizable)
1880 {
1881   GtkTreeViewColumnPrivate *priv;
1882
1883   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1884
1885   priv      = tree_column->priv;
1886   resizable = !! resizable;
1887
1888   if (priv->resizable == resizable)
1889     return;
1890
1891   priv->resizable = resizable;
1892
1893   if (resizable && priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
1894     gtk_tree_view_column_set_sizing (tree_column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
1895
1896   gtk_tree_view_column_update_button (tree_column);
1897
1898   g_object_notify (G_OBJECT (tree_column), "resizable");
1899 }
1900
1901 /**
1902  * gtk_tree_view_column_get_resizable:
1903  * @tree_column: A #GtkTreeViewColumn
1904  *
1905  * Returns %TRUE if the @tree_column can be resized by the end user.
1906  *
1907  * Return value: %TRUE, if the @tree_column can be resized.
1908  **/
1909 gboolean
1910 gtk_tree_view_column_get_resizable (GtkTreeViewColumn *tree_column)
1911 {
1912   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
1913
1914   return tree_column->priv->resizable;
1915 }
1916
1917
1918 /**
1919  * gtk_tree_view_column_set_sizing:
1920  * @tree_column: A #GtkTreeViewColumn.
1921  * @type: The #GtkTreeViewColumnSizing.
1922  *
1923  * Sets the growth behavior of @tree_column to @type.
1924  **/
1925 void
1926 gtk_tree_view_column_set_sizing (GtkTreeViewColumn       *tree_column,
1927                                  GtkTreeViewColumnSizing  type)
1928 {
1929   GtkTreeViewColumnPrivate *priv;
1930
1931   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1932
1933   priv      = tree_column->priv;
1934
1935   if (type == priv->column_type)
1936     return;
1937
1938   if (type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
1939     gtk_tree_view_column_set_resizable (tree_column, FALSE);
1940
1941   priv->column_type = type;
1942
1943   gtk_tree_view_column_update_button (tree_column);
1944
1945   g_object_notify (G_OBJECT (tree_column), "sizing");
1946 }
1947
1948 /**
1949  * gtk_tree_view_column_get_sizing:
1950  * @tree_column: A #GtkTreeViewColumn.
1951  *
1952  * Returns the current type of @tree_column.
1953  *
1954  * Return value: The type of @tree_column.
1955  **/
1956 GtkTreeViewColumnSizing
1957 gtk_tree_view_column_get_sizing (GtkTreeViewColumn *tree_column)
1958 {
1959   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
1960
1961   return tree_column->priv->column_type;
1962 }
1963
1964 /**
1965  * gtk_tree_view_column_get_width:
1966  * @tree_column: A #GtkTreeViewColumn.
1967  *
1968  * Returns the current size of @tree_column in pixels.
1969  *
1970  * Return value: The current width of @tree_column.
1971  **/
1972 gint
1973 gtk_tree_view_column_get_width (GtkTreeViewColumn *tree_column)
1974 {
1975   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
1976
1977   return tree_column->priv->width;
1978 }
1979
1980 gint
1981 _gtk_tree_view_column_request_width (GtkTreeViewColumn *tree_column)
1982 {
1983   GtkTreeViewColumnPrivate *priv;
1984   gint real_requested_width;
1985
1986   priv = tree_column->priv;
1987
1988   if (priv->use_resized_width)
1989     {
1990       real_requested_width = priv->resized_width;
1991     }
1992   else if (priv->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
1993     {
1994       real_requested_width = priv->fixed_width;
1995     }
1996   else if (gtk_tree_view_get_headers_visible (GTK_TREE_VIEW (priv->tree_view)))
1997     {
1998       gint button_request;
1999       gint requested_width;
2000
2001       gtk_cell_area_context_get_preferred_width (priv->cell_area_context, &requested_width, NULL);
2002       requested_width += priv->padding;
2003
2004       gtk_widget_get_preferred_width (priv->button, &button_request, NULL);
2005       real_requested_width = MAX (requested_width, button_request);
2006     }
2007   else
2008     {
2009       gint requested_width;
2010
2011       gtk_cell_area_context_get_preferred_width (priv->cell_area_context, &requested_width, NULL);
2012       requested_width += priv->padding;
2013
2014       real_requested_width = requested_width;
2015       if (real_requested_width < 0)
2016         real_requested_width = 0;
2017     }
2018
2019   if (priv->min_width != -1)
2020     real_requested_width = MAX (real_requested_width, priv->min_width);
2021
2022   if (priv->max_width != -1)
2023     real_requested_width = MIN (real_requested_width, priv->max_width);
2024
2025   return real_requested_width;
2026 }
2027
2028 void
2029 _gtk_tree_view_column_allocate (GtkTreeViewColumn *tree_column,
2030                                 int                x_offset,
2031                                 int                width)
2032 {
2033   GtkTreeViewColumnPrivate *priv;
2034   GtkAllocation             allocation;
2035   gboolean                  rtl;
2036
2037   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2038
2039   priv = tree_column->priv;
2040
2041   priv->width = width;
2042
2043   gtk_cell_area_context_allocate (priv->cell_area_context, priv->width - priv->padding, -1);
2044
2045   allocation.x      = x_offset;
2046   allocation.y      = 0;
2047   allocation.width  = width;
2048   allocation.height = _gtk_tree_view_get_header_height (GTK_TREE_VIEW (priv->tree_view));
2049
2050   gtk_widget_size_allocate (priv->button, &allocation);
2051
2052   if (priv->window)
2053     {
2054       rtl = (gtk_widget_get_direction (priv->tree_view) == GTK_TEXT_DIR_RTL);
2055       gdk_window_move_resize (priv->window,
2056                               allocation.x + (rtl ? 0 : allocation.width) - TREE_VIEW_DRAG_WIDTH/2,
2057                               allocation.y,
2058                               TREE_VIEW_DRAG_WIDTH, allocation.height);
2059     }
2060
2061   g_object_notify (G_OBJECT (tree_column), "width");
2062 }
2063
2064 /**
2065  * gtk_tree_view_column_set_fixed_width:
2066  * @tree_column: A #GtkTreeViewColumn.
2067  * @fixed_width: The size to set @tree_column to. Must be greater than 0.
2068  *
2069  * Sets the size of the column in pixels.  This is meaningful only if the sizing
2070  * type is #GTK_TREE_VIEW_COLUMN_FIXED.  The size of the column is clamped to
2071  * the min/max width for the column.  Please note that the min/max width of the
2072  * column doesn't actually affect the "fixed_width" property of the widget, just
2073  * the actual size when displayed.
2074  **/
2075 void
2076 gtk_tree_view_column_set_fixed_width (GtkTreeViewColumn *tree_column,
2077                                       gint               fixed_width)
2078 {
2079   GtkTreeViewColumnPrivate *priv;
2080
2081   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2082   g_return_if_fail (fixed_width > 0);
2083
2084   priv = tree_column->priv;
2085
2086   priv->fixed_width = fixed_width;
2087   priv->use_resized_width = FALSE;
2088
2089   if (priv->tree_view &&
2090       gtk_widget_get_realized (priv->tree_view) &&
2091       priv->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2092     {
2093       gtk_widget_queue_resize (priv->tree_view);
2094     }
2095
2096   g_object_notify (G_OBJECT (tree_column), "fixed-width");
2097 }
2098
2099 /**
2100  * gtk_tree_view_column_get_fixed_width:
2101  * @tree_column: a #GtkTreeViewColumn
2102  *
2103  * Gets the fixed width of the column.  This value is only meaning may not be
2104  * the actual width of the column on the screen, just what is requested.
2105  *
2106  * Return value: the fixed width of the column
2107  **/
2108 gint
2109 gtk_tree_view_column_get_fixed_width (GtkTreeViewColumn *tree_column)
2110 {
2111   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
2112
2113   return tree_column->priv->fixed_width;
2114 }
2115
2116 /**
2117  * gtk_tree_view_column_set_min_width:
2118  * @tree_column: A #GtkTreeViewColumn.
2119  * @min_width: The minimum width of the column in pixels, or -1.
2120  *
2121  * Sets the minimum width of the @tree_column.  If @min_width is -1, then the
2122  * minimum width is unset.
2123  **/
2124 void
2125 gtk_tree_view_column_set_min_width (GtkTreeViewColumn *tree_column,
2126                                     gint               min_width)
2127 {
2128   GtkTreeViewColumnPrivate *priv;
2129
2130   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2131   g_return_if_fail (min_width >= -1);
2132
2133   priv = tree_column->priv;
2134
2135   if (min_width == priv->min_width)
2136     return;
2137
2138   if (priv->visible &&
2139       priv->tree_view != NULL &&
2140       gtk_widget_get_realized (priv->tree_view))
2141     {
2142       if (min_width > priv->width)
2143         gtk_widget_queue_resize (priv->tree_view);
2144     }
2145
2146   priv->min_width = min_width;
2147   g_object_freeze_notify (G_OBJECT (tree_column));
2148   if (priv->max_width != -1 && priv->max_width < min_width)
2149     {
2150       priv->max_width = min_width;
2151       g_object_notify (G_OBJECT (tree_column), "max-width");
2152     }
2153   g_object_notify (G_OBJECT (tree_column), "min-width");
2154   g_object_thaw_notify (G_OBJECT (tree_column));
2155
2156   if (priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2157     _gtk_tree_view_column_autosize (GTK_TREE_VIEW (priv->tree_view),
2158                                     tree_column);
2159 }
2160
2161 /**
2162  * gtk_tree_view_column_get_min_width:
2163  * @tree_column: A #GtkTreeViewColumn.
2164  *
2165  * Returns the minimum width in pixels of the @tree_column, or -1 if no minimum
2166  * width is set.
2167  *
2168  * Return value: The minimum width of the @tree_column.
2169  **/
2170 gint
2171 gtk_tree_view_column_get_min_width (GtkTreeViewColumn *tree_column)
2172 {
2173   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), -1);
2174
2175   return tree_column->priv->min_width;
2176 }
2177
2178 /**
2179  * gtk_tree_view_column_set_max_width:
2180  * @tree_column: A #GtkTreeViewColumn.
2181  * @max_width: The maximum width of the column in pixels, or -1.
2182  *
2183  * Sets the maximum width of the @tree_column.  If @max_width is -1, then the
2184  * maximum width is unset.  Note, the column can actually be wider than max
2185  * width if it's the last column in a view.  In this case, the column expands to
2186  * fill any extra space.
2187  **/
2188 void
2189 gtk_tree_view_column_set_max_width (GtkTreeViewColumn *tree_column,
2190                                     gint               max_width)
2191 {
2192   GtkTreeViewColumnPrivate *priv;
2193
2194   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2195   g_return_if_fail (max_width >= -1);
2196
2197   priv = tree_column->priv;
2198
2199   if (max_width == priv->max_width)
2200     return;
2201
2202   if (priv->visible &&
2203       priv->tree_view != NULL &&
2204       gtk_widget_get_realized (priv->tree_view))
2205     {
2206       if (max_width != -1 && max_width < priv->width)
2207         gtk_widget_queue_resize (priv->tree_view);
2208     }
2209
2210   priv->max_width = max_width;
2211   g_object_freeze_notify (G_OBJECT (tree_column));
2212   if (max_width != -1 && max_width < priv->min_width)
2213     {
2214       priv->min_width = max_width;
2215       g_object_notify (G_OBJECT (tree_column), "min-width");
2216     }
2217   g_object_notify (G_OBJECT (tree_column), "max-width");
2218   g_object_thaw_notify (G_OBJECT (tree_column));
2219
2220   if (priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2221     _gtk_tree_view_column_autosize (GTK_TREE_VIEW (priv->tree_view),
2222                                     tree_column);
2223 }
2224
2225 /**
2226  * gtk_tree_view_column_get_max_width:
2227  * @tree_column: A #GtkTreeViewColumn.
2228  *
2229  * Returns the maximum width in pixels of the @tree_column, or -1 if no maximum
2230  * width is set.
2231  *
2232  * Return value: The maximum width of the @tree_column.
2233  **/
2234 gint
2235 gtk_tree_view_column_get_max_width (GtkTreeViewColumn *tree_column)
2236 {
2237   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), -1);
2238
2239   return tree_column->priv->max_width;
2240 }
2241
2242 /**
2243  * gtk_tree_view_column_clicked:
2244  * @tree_column: a #GtkTreeViewColumn
2245  *
2246  * Emits the "clicked" signal on the column.  This function will only work if
2247  * @tree_column is clickable.
2248  **/
2249 void
2250 gtk_tree_view_column_clicked (GtkTreeViewColumn *tree_column)
2251 {
2252   GtkTreeViewColumnPrivate *priv;
2253
2254   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2255
2256   priv = tree_column->priv;
2257
2258   if (priv->visible &&
2259       priv->button &&
2260       priv->clickable)
2261     gtk_button_clicked (GTK_BUTTON (priv->button));
2262 }
2263
2264 /**
2265  * gtk_tree_view_column_set_title:
2266  * @tree_column: A #GtkTreeViewColumn.
2267  * @title: The title of the @tree_column.
2268  *
2269  * Sets the title of the @tree_column.  If a custom widget has been set, then
2270  * this value is ignored.
2271  **/
2272 void
2273 gtk_tree_view_column_set_title (GtkTreeViewColumn *tree_column,
2274                                 const gchar       *title)
2275 {
2276   GtkTreeViewColumnPrivate *priv;
2277   gchar                    *new_title;
2278
2279   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2280
2281   priv = tree_column->priv;
2282
2283   new_title = g_strdup (title);
2284   g_free (priv->title);
2285   priv->title = new_title;
2286
2287   gtk_tree_view_column_update_button (tree_column);
2288   g_object_notify (G_OBJECT (tree_column), "title");
2289 }
2290
2291 /**
2292  * gtk_tree_view_column_get_title:
2293  * @tree_column: A #GtkTreeViewColumn.
2294  *
2295  * Returns the title of the widget.
2296  *
2297  * Return value: the title of the column. This string should not be
2298  * modified or freed.
2299  **/
2300 G_CONST_RETURN gchar *
2301 gtk_tree_view_column_get_title (GtkTreeViewColumn *tree_column)
2302 {
2303   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
2304
2305   return tree_column->priv->title;
2306 }
2307
2308 /**
2309  * gtk_tree_view_column_set_expand:
2310  * @tree_column: A #GtkTreeViewColumn
2311  * @expand: %TRUE if the column should take available extra space, %FALSE if not
2312  *
2313  * Sets the column to take available extra space.  This space is shared equally
2314  * amongst all columns that have the expand set to %TRUE.  If no column has this
2315  * option set, then the last column gets all extra space.  By default, every
2316  * column is created with this %FALSE.
2317  *
2318  * Since: 2.4
2319  **/
2320 void
2321 gtk_tree_view_column_set_expand (GtkTreeViewColumn *tree_column,
2322                                  gboolean           expand)
2323 {
2324   GtkTreeViewColumnPrivate *priv;
2325
2326   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2327
2328   priv = tree_column->priv;
2329
2330   expand = expand?TRUE:FALSE;
2331   if (priv->expand == expand)
2332     return;
2333   priv->expand = expand;
2334
2335   if (priv->visible &&
2336       priv->tree_view != NULL &&
2337       gtk_widget_get_realized (priv->tree_view))
2338     {
2339       /* We want to continue using the original width of the
2340        * column that includes additional space added by the user
2341        * resizing the columns and possibly extra (expanded) space, which
2342        * are not included in the resized width.
2343        */
2344       priv->use_resized_width = FALSE;
2345
2346       gtk_widget_queue_resize (priv->tree_view);
2347     }
2348
2349   g_object_notify (G_OBJECT (tree_column), "expand");
2350 }
2351
2352 /**
2353  * gtk_tree_view_column_get_expand:
2354  * @tree_column: a #GtkTreeViewColumn
2355  *
2356  * Return %TRUE if the column expands to take any available space.
2357  *
2358  * Return value: %TRUE, if the column expands
2359  *
2360  * Since: 2.4
2361  **/
2362 gboolean
2363 gtk_tree_view_column_get_expand (GtkTreeViewColumn *tree_column)
2364 {
2365   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2366
2367   return tree_column->priv->expand;
2368 }
2369
2370 /**
2371  * gtk_tree_view_column_set_clickable:
2372  * @tree_column: A #GtkTreeViewColumn.
2373  * @clickable: %TRUE if the header is active.
2374  *
2375  * Sets the header to be active if @active is %TRUE.  When the header is active,
2376  * then it can take keyboard focus, and can be clicked.
2377  **/
2378 void
2379 gtk_tree_view_column_set_clickable (GtkTreeViewColumn *tree_column,
2380                                     gboolean           clickable)
2381 {
2382   GtkTreeViewColumnPrivate *priv;
2383
2384   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2385
2386   priv = tree_column->priv;
2387
2388   clickable = !! clickable;
2389   if (priv->clickable == clickable)
2390     return;
2391
2392   priv->clickable = clickable;
2393   gtk_tree_view_column_update_button (tree_column);
2394   g_object_notify (G_OBJECT (tree_column), "clickable");
2395 }
2396
2397 /**
2398  * gtk_tree_view_column_get_clickable:
2399  * @tree_column: a #GtkTreeViewColumn
2400  *
2401  * Returns %TRUE if the user can click on the header for the column.
2402  *
2403  * Return value: %TRUE if user can click the column header.
2404  **/
2405 gboolean
2406 gtk_tree_view_column_get_clickable (GtkTreeViewColumn *tree_column)
2407 {
2408   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2409
2410   return tree_column->priv->clickable;
2411 }
2412
2413 /**
2414  * gtk_tree_view_column_set_widget:
2415  * @tree_column: A #GtkTreeViewColumn.
2416  * @widget: (allow-none): A child #GtkWidget, or %NULL.
2417  *
2418  * Sets the widget in the header to be @widget.  If widget is %NULL, then the
2419  * header button is set with a #GtkLabel set to the title of @tree_column.
2420  **/
2421 void
2422 gtk_tree_view_column_set_widget (GtkTreeViewColumn *tree_column,
2423                                  GtkWidget         *widget)
2424 {
2425   GtkTreeViewColumnPrivate *priv;
2426
2427   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2428   g_return_if_fail (widget == NULL || GTK_IS_WIDGET (widget));
2429
2430   priv = tree_column->priv;
2431
2432   if (widget)
2433     g_object_ref_sink (widget);
2434
2435   if (priv->child)
2436     g_object_unref (priv->child);
2437
2438   priv->child = widget;
2439   gtk_tree_view_column_update_button (tree_column);
2440   g_object_notify (G_OBJECT (tree_column), "widget");
2441 }
2442
2443 /**
2444  * gtk_tree_view_column_get_widget:
2445  * @tree_column: A #GtkTreeViewColumn.
2446  *
2447  * Returns the #GtkWidget in the button on the column header.
2448  * If a custom widget has not been set then %NULL is returned.
2449  *
2450  * Return value: (transfer none): The #GtkWidget in the column
2451  *     header, or %NULL
2452  **/
2453 GtkWidget *
2454 gtk_tree_view_column_get_widget (GtkTreeViewColumn *tree_column)
2455 {
2456   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
2457
2458   return tree_column->priv->child;
2459 }
2460
2461 /**
2462  * gtk_tree_view_column_set_alignment:
2463  * @tree_column: A #GtkTreeViewColumn.
2464  * @xalign: The alignment, which is between [0.0 and 1.0] inclusive.
2465  *
2466  * Sets the alignment of the title or custom widget inside the column header.
2467  * The alignment determines its location inside the button -- 0.0 for left, 0.5
2468  * for center, 1.0 for right.
2469  **/
2470 void
2471 gtk_tree_view_column_set_alignment (GtkTreeViewColumn *tree_column,
2472                                     gfloat             xalign)
2473 {
2474   GtkTreeViewColumnPrivate *priv;
2475
2476   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2477
2478   priv = tree_column->priv;
2479
2480   xalign = CLAMP (xalign, 0.0, 1.0);
2481
2482   if (priv->xalign == xalign)
2483     return;
2484
2485   priv->xalign = xalign;
2486   gtk_tree_view_column_update_button (tree_column);
2487   g_object_notify (G_OBJECT (tree_column), "alignment");
2488 }
2489
2490 /**
2491  * gtk_tree_view_column_get_alignment:
2492  * @tree_column: A #GtkTreeViewColumn.
2493  *
2494  * Returns the current x alignment of @tree_column.  This value can range
2495  * between 0.0 and 1.0.
2496  *
2497  * Return value: The current alignent of @tree_column.
2498  **/
2499 gfloat
2500 gtk_tree_view_column_get_alignment (GtkTreeViewColumn *tree_column)
2501 {
2502   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0.5);
2503
2504   return tree_column->priv->xalign;
2505 }
2506
2507 /**
2508  * gtk_tree_view_column_set_reorderable:
2509  * @tree_column: A #GtkTreeViewColumn
2510  * @reorderable: %TRUE, if the column can be reordered.
2511  *
2512  * If @reorderable is %TRUE, then the column can be reordered by the end user
2513  * dragging the header.
2514  **/
2515 void
2516 gtk_tree_view_column_set_reorderable (GtkTreeViewColumn *tree_column,
2517                                       gboolean           reorderable)
2518 {
2519   GtkTreeViewColumnPrivate *priv;
2520
2521   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2522
2523   priv = tree_column->priv;
2524
2525   /*  if (reorderable)
2526       gtk_tree_view_column_set_clickable (tree_column, TRUE);*/
2527
2528   if (priv->reorderable == (reorderable?TRUE:FALSE))
2529     return;
2530
2531   priv->reorderable = (reorderable?TRUE:FALSE);
2532   gtk_tree_view_column_update_button (tree_column);
2533   g_object_notify (G_OBJECT (tree_column), "reorderable");
2534 }
2535
2536 /**
2537  * gtk_tree_view_column_get_reorderable:
2538  * @tree_column: A #GtkTreeViewColumn
2539  *
2540  * Returns %TRUE if the @tree_column can be reordered by the user.
2541  *
2542  * Return value: %TRUE if the @tree_column can be reordered by the user.
2543  **/
2544 gboolean
2545 gtk_tree_view_column_get_reorderable (GtkTreeViewColumn *tree_column)
2546 {
2547   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2548
2549   return tree_column->priv->reorderable;
2550 }
2551
2552
2553 /**
2554  * gtk_tree_view_column_set_sort_column_id:
2555  * @tree_column: a #GtkTreeViewColumn
2556  * @sort_column_id: The @sort_column_id of the model to sort on.
2557  *
2558  * Sets the logical @sort_column_id that this column sorts on when this column
2559  * is selected for sorting.  Doing so makes the column header clickable.
2560  **/
2561 void
2562 gtk_tree_view_column_set_sort_column_id (GtkTreeViewColumn *tree_column,
2563                                          gint               sort_column_id)
2564 {
2565   GtkTreeViewColumnPrivate *priv;
2566
2567   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2568   g_return_if_fail (sort_column_id >= -1);
2569
2570   priv = tree_column->priv;
2571
2572   if (priv->sort_column_id == sort_column_id)
2573     return;
2574
2575   priv->sort_column_id = sort_column_id;
2576
2577   /* Handle unsetting the id */
2578   if (sort_column_id == -1)
2579     {
2580       GtkTreeModel *model = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
2581
2582       if (priv->sort_clicked_signal)
2583         {
2584           g_signal_handler_disconnect (tree_column, priv->sort_clicked_signal);
2585           priv->sort_clicked_signal = 0;
2586         }
2587
2588       if (priv->sort_column_changed_signal)
2589         {
2590           g_signal_handler_disconnect (model, priv->sort_column_changed_signal);
2591           priv->sort_column_changed_signal = 0;
2592         }
2593
2594       gtk_tree_view_column_set_sort_order (tree_column, GTK_SORT_ASCENDING);
2595       gtk_tree_view_column_set_sort_indicator (tree_column, FALSE);
2596       gtk_tree_view_column_set_clickable (tree_column, FALSE);
2597       g_object_notify (G_OBJECT (tree_column), "sort-column-id");
2598       return;
2599     }
2600
2601   gtk_tree_view_column_set_clickable (tree_column, TRUE);
2602
2603   if (! priv->sort_clicked_signal)
2604     priv->sort_clicked_signal = g_signal_connect (tree_column,
2605                                                   "clicked",
2606                                                   G_CALLBACK (gtk_tree_view_column_sort),
2607                                                   NULL);
2608
2609   gtk_tree_view_column_setup_sort_column_id_callback (tree_column);
2610   g_object_notify (G_OBJECT (tree_column), "sort-column-id");
2611 }
2612
2613 /**
2614  * gtk_tree_view_column_get_sort_column_id:
2615  * @tree_column: a #GtkTreeViewColumn
2616  *
2617  * Gets the logical @sort_column_id that the model sorts on when this
2618  * column is selected for sorting.
2619  * See gtk_tree_view_column_set_sort_column_id().
2620  *
2621  * Return value: the current @sort_column_id for this column, or -1 if
2622  *               this column can't be used for sorting.
2623  **/
2624 gint
2625 gtk_tree_view_column_get_sort_column_id (GtkTreeViewColumn *tree_column)
2626 {
2627   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
2628
2629   return tree_column->priv->sort_column_id;
2630 }
2631
2632 /**
2633  * gtk_tree_view_column_set_sort_indicator:
2634  * @tree_column: a #GtkTreeViewColumn
2635  * @setting: %TRUE to display an indicator that the column is sorted
2636  *
2637  * Call this function with a @setting of %TRUE to display an arrow in
2638  * the header button indicating the column is sorted. Call
2639  * gtk_tree_view_column_set_sort_order() to change the direction of
2640  * the arrow.
2641  *
2642  **/
2643 void
2644 gtk_tree_view_column_set_sort_indicator (GtkTreeViewColumn     *tree_column,
2645                                          gboolean               setting)
2646 {
2647   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2648
2649   setting = setting != FALSE;
2650
2651   if (setting == tree_column->priv->show_sort_indicator)
2652     return;
2653
2654   tree_column->priv->show_sort_indicator = setting;
2655   gtk_tree_view_column_update_button (tree_column);
2656   g_object_notify (G_OBJECT (tree_column), "sort-indicator");
2657 }
2658
2659 /**
2660  * gtk_tree_view_column_get_sort_indicator:
2661  * @tree_column: a #GtkTreeViewColumn
2662  *
2663  * Gets the value set by gtk_tree_view_column_set_sort_indicator().
2664  *
2665  * Return value: whether the sort indicator arrow is displayed
2666  **/
2667 gboolean
2668 gtk_tree_view_column_get_sort_indicator  (GtkTreeViewColumn     *tree_column)
2669 {
2670   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2671
2672   return tree_column->priv->show_sort_indicator;
2673 }
2674
2675 /**
2676  * gtk_tree_view_column_set_sort_order:
2677  * @tree_column: a #GtkTreeViewColumn
2678  * @order: sort order that the sort indicator should indicate
2679  *
2680  * Changes the appearance of the sort indicator.
2681  *
2682  * This <emphasis>does not</emphasis> actually sort the model.  Use
2683  * gtk_tree_view_column_set_sort_column_id() if you want automatic sorting
2684  * support.  This function is primarily for custom sorting behavior, and should
2685  * be used in conjunction with gtk_tree_sortable_set_sort_column() to do
2686  * that. For custom models, the mechanism will vary.
2687  *
2688  * The sort indicator changes direction to indicate normal sort or reverse sort.
2689  * Note that you must have the sort indicator enabled to see anything when
2690  * calling this function; see gtk_tree_view_column_set_sort_indicator().
2691  **/
2692 void
2693 gtk_tree_view_column_set_sort_order      (GtkTreeViewColumn     *tree_column,
2694                                           GtkSortType            order)
2695 {
2696   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2697
2698   if (order == tree_column->priv->sort_order)
2699     return;
2700
2701   tree_column->priv->sort_order = order;
2702   gtk_tree_view_column_update_button (tree_column);
2703   g_object_notify (G_OBJECT (tree_column), "sort-order");
2704 }
2705
2706 /**
2707  * gtk_tree_view_column_get_sort_order:
2708  * @tree_column: a #GtkTreeViewColumn
2709  *
2710  * Gets the value set by gtk_tree_view_column_set_sort_order().
2711  *
2712  * Return value: the sort order the sort indicator is indicating
2713  **/
2714 GtkSortType
2715 gtk_tree_view_column_get_sort_order      (GtkTreeViewColumn     *tree_column)
2716 {
2717   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
2718
2719   return tree_column->priv->sort_order;
2720 }
2721
2722 /**
2723  * gtk_tree_view_column_cell_set_cell_data:
2724  * @tree_column: A #GtkTreeViewColumn.
2725  * @tree_model: The #GtkTreeModel to to get the cell renderers attributes from.
2726  * @iter: The #GtkTreeIter to to get the cell renderer's attributes from.
2727  * @is_expander: %TRUE, if the row has children
2728  * @is_expanded: %TRUE, if the row has visible children
2729  *
2730  * Sets the cell renderer based on the @tree_model and @iter.  That is, for
2731  * every attribute mapping in @tree_column, it will get a value from the set
2732  * column on the @iter, and use that value to set the attribute on the cell
2733  * renderer.  This is used primarily by the #GtkTreeView.
2734  **/
2735 void
2736 gtk_tree_view_column_cell_set_cell_data (GtkTreeViewColumn *tree_column,
2737                                          GtkTreeModel      *tree_model,
2738                                          GtkTreeIter       *iter,
2739                                          gboolean           is_expander,
2740                                          gboolean           is_expanded)
2741 {
2742   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2743
2744   if (tree_model == NULL)
2745     return;
2746
2747   gtk_cell_area_apply_attributes (tree_column->priv->cell_area, tree_model, iter,
2748                                   is_expander, is_expanded);
2749 }
2750
2751 /**
2752  * gtk_tree_view_column_cell_get_size:
2753  * @tree_column: A #GtkTreeViewColumn.
2754  * @cell_area: (allow-none): The area a cell in the column will be allocated, or %NULL
2755  * @x_offset: (allow-none): location to return x offset of a cell relative to @cell_area, or %NULL
2756  * @y_offset: (allow-none): location to return y offset of a cell relative to @cell_area, or %NULL
2757  * @width: (allow-none): location to return width needed to render a cell, or %NULL
2758  * @height: (allow-none): location to return height needed to render a cell, or %NULL
2759  *
2760  * Obtains the width and height needed to render the column.  This is used
2761  * primarily by the #GtkTreeView.
2762  **/
2763 void
2764 gtk_tree_view_column_cell_get_size (GtkTreeViewColumn  *tree_column,
2765                                     const GdkRectangle *cell_area,
2766                                     gint               *x_offset,
2767                                     gint               *y_offset,
2768                                     gint               *width,
2769                                     gint               *height)
2770 {
2771   GtkTreeViewColumnPrivate *priv;
2772   gint min_width = 0, min_height = 0;
2773
2774   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2775
2776   priv = tree_column->priv;
2777
2778   g_signal_handler_block (priv->cell_area_context,
2779                           priv->context_changed_signal);
2780
2781   gtk_cell_area_get_preferred_width (priv->cell_area,
2782                                      priv->cell_area_context,
2783                                      priv->tree_view,
2784                                      NULL, NULL);
2785
2786   gtk_cell_area_context_get_preferred_width (priv->cell_area_context, &min_width, NULL);
2787
2788   gtk_cell_area_get_preferred_height_for_width (priv->cell_area,
2789                                                 priv->cell_area_context,
2790                                                 priv->tree_view,
2791                                                 min_width,
2792                                                 &min_height,
2793                                                 NULL);
2794
2795   g_signal_handler_unblock (priv->cell_area_context,
2796                             priv->context_changed_signal);
2797
2798
2799   if (height)
2800     * height = min_height;
2801   if (width)
2802     * width = min_width;
2803
2804 }
2805
2806 /**
2807  * gtk_tree_view_column_cell_render:
2808  * @tree_column: A #GtkTreeViewColumn.
2809  * @cr: cairo context to draw to
2810  * @background_area: entire cell area (including tree expanders and maybe padding on the sides)
2811  * @cell_area: area normally rendered by a cell renderer
2812  * @flags: flags that affect rendering
2813  *
2814  * Renders the cell contained by #tree_column. This is used primarily by the
2815  * #GtkTreeView.
2816  **/
2817 void
2818 _gtk_tree_view_column_cell_render (GtkTreeViewColumn  *tree_column,
2819                                    cairo_t            *cr,
2820                                    const GdkRectangle *background_area,
2821                                    const GdkRectangle *cell_area,
2822                                    guint               flags,
2823                                    gboolean            draw_focus)
2824 {
2825   GtkTreeViewColumnPrivate *priv;
2826
2827   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2828   g_return_if_fail (cr != NULL);
2829   g_return_if_fail (background_area != NULL);
2830   g_return_if_fail (cell_area != NULL);
2831
2832   priv = tree_column->priv;
2833
2834   cairo_save (cr);
2835
2836   gtk_cell_area_render (priv->cell_area, priv->cell_area_context,
2837                         priv->tree_view, cr,
2838                         background_area, cell_area, flags,
2839                         draw_focus);
2840
2841   cairo_restore (cr);
2842 }
2843
2844 gboolean
2845 _gtk_tree_view_column_cell_event (GtkTreeViewColumn  *tree_column,
2846                                   GdkEvent           *event,
2847                                   const GdkRectangle *cell_area,
2848                                   guint               flags)
2849 {
2850   GtkTreeViewColumnPrivate *priv;
2851
2852   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2853
2854   priv = tree_column->priv;
2855
2856   return gtk_cell_area_event (priv->cell_area,
2857                               priv->cell_area_context,
2858                               priv->tree_view,
2859                               event,
2860                               cell_area,
2861                               flags);
2862 }
2863
2864 /**
2865  * gtk_tree_view_column_cell_is_visible:
2866  * @tree_column: A #GtkTreeViewColumn
2867  *
2868  * Returns %TRUE if any of the cells packed into the @tree_column are visible.
2869  * For this to be meaningful, you must first initialize the cells with
2870  * gtk_tree_view_column_cell_set_cell_data()
2871  *
2872  * Return value: %TRUE, if any of the cells packed into the @tree_column are currently visible
2873  **/
2874 gboolean
2875 gtk_tree_view_column_cell_is_visible (GtkTreeViewColumn *tree_column)
2876 {
2877   GList *list;
2878   GList *cells;
2879   GtkTreeViewColumnPrivate *priv;
2880
2881   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2882
2883   priv = tree_column->priv;
2884
2885   cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (priv->cell_area));
2886   for (list = cells; list; list = list->next)
2887     {
2888       if (gtk_cell_renderer_get_visible (list->data))
2889         {
2890           g_list_free (cells);
2891           return TRUE;
2892         }
2893     }
2894
2895   g_list_free (cells);
2896
2897   return FALSE;
2898 }
2899
2900 /**
2901  * gtk_tree_view_column_focus_cell:
2902  * @tree_column: A #GtkTreeViewColumn
2903  * @cell: A #GtkCellRenderer
2904  *
2905  * Sets the current keyboard focus to be at @cell, if the column contains
2906  * 2 or more editable and activatable cells.
2907  *
2908  * Since: 2.2
2909  **/
2910 void
2911 gtk_tree_view_column_focus_cell (GtkTreeViewColumn *tree_column,
2912                                  GtkCellRenderer   *cell)
2913 {
2914   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2915   g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
2916
2917   gtk_cell_area_set_focus_cell (tree_column->priv->cell_area, cell);
2918 }
2919
2920 void
2921 _gtk_tree_view_column_cell_set_dirty (GtkTreeViewColumn *tree_column,
2922                                       gboolean           install_handler)
2923 {
2924   GtkTreeViewColumnPrivate *priv = tree_column->priv;
2925
2926   priv->dirty = TRUE;
2927   priv->padding = 0;
2928   priv->width = 0;
2929
2930   /* Issue a manual reset on the context to have all
2931    * sizes re-requested for the context.
2932    */
2933   g_signal_handler_block (priv->cell_area_context,
2934                           priv->context_changed_signal);
2935   gtk_cell_area_context_reset (priv->cell_area_context);
2936   g_signal_handler_unblock (priv->cell_area_context,
2937                             priv->context_changed_signal);
2938
2939   if (priv->tree_view &&
2940       gtk_widget_get_realized (priv->tree_view))
2941     {
2942       _gtk_tree_view_install_mark_rows_col_dirty (GTK_TREE_VIEW (priv->tree_view), install_handler);
2943       gtk_widget_queue_resize (priv->tree_view);
2944     }
2945 }
2946
2947 gboolean
2948 _gtk_tree_view_column_cell_get_dirty (GtkTreeViewColumn  *tree_column)
2949 {
2950   return tree_column->priv->dirty;
2951 }
2952
2953 /**
2954  * gtk_tree_view_column_cell_get_position:
2955  * @tree_column: a #GtkTreeViewColumn
2956  * @cell_renderer: a #GtkCellRenderer
2957  * @x_offset: return location for the horizontal position of @cell within
2958  *            @tree_column, may be %NULL
2959  * @width: return location for the width of @cell, may be %NULL
2960  *
2961  * Obtains the horizontal position and size of a cell in a column. If the
2962  * cell is not found in the column, @start_pos and @width are not changed and
2963  * %FALSE is returned.
2964  *
2965  * Return value: %TRUE if @cell belongs to @tree_column.
2966  */
2967 gboolean
2968 gtk_tree_view_column_cell_get_position (GtkTreeViewColumn *tree_column,
2969                                         GtkCellRenderer   *cell_renderer,
2970                                         gint              *x_offset,
2971                                         gint              *width)
2972 {
2973   GtkTreeViewColumnPrivate *priv;
2974   GdkRectangle zero_cell_area = { 0, };
2975   GdkRectangle allocation;
2976
2977   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2978   g_return_val_if_fail (GTK_IS_CELL_RENDERER (cell_renderer), FALSE);
2979
2980   priv = tree_column->priv;
2981
2982   /* FIXME: Could use a boolean return value for invalid cells */
2983   gtk_cell_area_get_cell_allocation (priv->cell_area,
2984                                      priv->cell_area_context,
2985                                      priv->tree_view,
2986                                      cell_renderer,
2987                                      &zero_cell_area,
2988                                      &allocation);
2989
2990   if (x_offset)
2991     *x_offset = allocation.x;
2992   if (width)
2993     *width = allocation.width;
2994
2995   return TRUE;
2996 }
2997
2998 /**
2999  * gtk_tree_view_column_queue_resize:
3000  * @tree_column: A #GtkTreeViewColumn
3001  *
3002  * Flags the column, and the cell renderers added to this column, to have
3003  * their sizes renegotiated.
3004  *
3005  * Since: 2.8
3006  **/
3007 void
3008 gtk_tree_view_column_queue_resize (GtkTreeViewColumn *tree_column)
3009 {
3010   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
3011
3012   if (tree_column->priv->tree_view)
3013     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
3014 }
3015
3016 /**
3017  * gtk_tree_view_column_get_tree_view:
3018  * @tree_column: A #GtkTreeViewColumn
3019  *
3020  * Returns the #GtkTreeView wherein @tree_column has been inserted.
3021  * If @column is currently not inserted in any tree view, %NULL is
3022  * returned.
3023  *
3024  * Return value: (transfer none): The tree view wherein @column has
3025  *     been inserted if any, %NULL otherwise.
3026  *
3027  * Since: 2.12
3028  */
3029 GtkWidget *
3030 gtk_tree_view_column_get_tree_view (GtkTreeViewColumn *tree_column)
3031 {
3032   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
3033
3034   return tree_column->priv->tree_view;
3035 }
3036
3037 /**
3038  * gtk_tree_view_column_get_button:
3039  * @tree_column: A #GtkTreeViewColumn
3040  *
3041  * Returns the button used in the treeview column header
3042  *
3043  * Return value: (transfer none): The button for the column header.
3044  *
3045  * Since: 3.0
3046  */
3047 GtkWidget *
3048 gtk_tree_view_column_get_button (GtkTreeViewColumn *tree_column)
3049 {
3050   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
3051
3052   return tree_column->priv->button;
3053 }
3054
3055 GdkWindow *
3056 _gtk_tree_view_column_get_window (GtkTreeViewColumn  *column)
3057 {
3058   return column->priv->window;
3059 }
3060
3061 void
3062 _gtk_tree_view_column_push_padding (GtkTreeViewColumn  *column,
3063                                     gint                padding)
3064 {
3065   column->priv->padding = MAX (column->priv->padding, padding);
3066 }
3067
3068 gint
3069 _gtk_tree_view_column_get_requested_width (GtkTreeViewColumn  *column)
3070 {
3071   gint requested_width;
3072
3073   gtk_cell_area_context_get_preferred_width (column->priv->cell_area_context, &requested_width, NULL);
3074
3075   return requested_width + column->priv->padding;
3076 }
3077
3078
3079 void
3080 _gtk_tree_view_column_set_resized_width (GtkTreeViewColumn  *column,
3081                                          gint                width)
3082 {
3083   column->priv->resized_width = width;
3084 }
3085
3086 gint
3087 _gtk_tree_view_column_get_resized_width (GtkTreeViewColumn  *column)
3088 {
3089   return column->priv->resized_width;
3090 }
3091
3092 void
3093 _gtk_tree_view_column_set_use_resized_width (GtkTreeViewColumn  *column,
3094                                              gboolean            use_resized_width)
3095 {
3096   column->priv->use_resized_width = use_resized_width;
3097 }
3098
3099 gboolean
3100 _gtk_tree_view_column_get_use_resized_width (GtkTreeViewColumn  *column)
3101 {
3102   return column->priv->use_resized_width;
3103 }
3104
3105 gint
3106 _gtk_tree_view_column_get_drag_x (GtkTreeViewColumn  *column)
3107 {
3108   return column->priv->drag_x;
3109 }
3110
3111 GtkCellAreaContext *
3112 _gtk_tree_view_column_get_context (GtkTreeViewColumn  *column)
3113 {
3114   return column->priv->cell_area_context;
3115 }