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

   1 /* gtktreeviewcolumn.c
   2  * Copyright (C) 2000  Red Hat, Inc.,  Jonathan Blandford <jrb@redhat.com>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 #include "config.h"
  21
  22 #include "gtktreeviewcolumn.h"
  23
  24 #include <string.h>
  25
  26 #include "gtktreeview.h"
  27 #include "gtktreeprivate.h"
  28 #include "gtkcelllayout.h"
  29 #include "gtkbutton.h"
  30 #include "gtkalignment.h"
  31 #include "gtklabel.h"
  32 #include "gtkhbox.h"
  33 #include "gtkmarshalers.h"
  34 #include "gtkarrow.h"
  35 #include "gtkcellareacontext.h"
  36 #include "gtkcellareabox.h"
  37 #include "gtkprivate.h"
  38 #include "gtkintl.h"
  39
  40
  41 /**
  42  * SECTION:gtktreeviewcolumn
  43  * @Short_description: A visible column in a GtkTreeView widget
  44  * @Title: GtkTreeViewColumn
  45  * @See_also: #GtkTreeView, #GtkTreeSelection, #GtkTreeDnd, #GtkTreeMode, #GtkTreeSortable,
  46  *   #GtkTreeModelSort, #GtkListStore, #GtkTreeStore, #GtkCellRenderer, #GtkCellEditable,
  47  *   #GtkCellRendererPixbuf, #GtkCellRendererText, #GtkCellRendererToggle
  48  *
  49  * The GtkTreeViewColumn object represents a visible column in a #GtkTreeView widget.
  50  * It allows to set properties of the column header, and functions as a holding pen for
  51  * the cell renderers which determine how the data in the column is displayed.
  52  *
  53  * Please refer to the <link linkend="TreeWidget">tree widget conceptual overview</link>
  54  * for an overview of all the objects and data types related to the tree widget and how
  55  * they work together.
  56  */
  57
  58
  59 /* Type methods */
  60 static void gtk_tree_view_column_cell_layout_init              (GtkCellLayoutIface      *iface);
  61
  62 /* GObject methods */
  63 static void gtk_tree_view_column_set_property                  (GObject                 *object,
  64                                                                 guint                    prop_id,
  65                                                                 const GValue            *value,
  66                                                                 GParamSpec              *pspec);
  67 static void gtk_tree_view_column_get_property                  (GObject                 *object,
  68                                                                 guint                    prop_id,
  69                                                                 GValue                  *value,
  70                                                                 GParamSpec              *pspec);
  71 static void gtk_tree_view_column_finalize                      (GObject                 *object);
  72 static void gtk_tree_view_column_dispose                       (GObject                 *object);
  73 static GObject *gtk_tree_view_column_constructor               (GType                    type,
  74                                                                 guint                    n_construct_properties,
  75                                                                 GObjectConstructParam   *construct_properties);
  76
  77 /* GtkCellLayout implementation */
  78 static GtkCellArea *gtk_tree_view_column_cell_layout_get_area  (GtkCellLayout           *cell_layout);
  79
  80 /* Button handling code */
  81 static void gtk_tree_view_column_create_button                 (GtkTreeViewColumn       *tree_column);
  82 static void gtk_tree_view_column_update_button                 (GtkTreeViewColumn       *tree_column);
  83
  84 /* Button signal handlers */
  85 static gint gtk_tree_view_column_button_event                  (GtkWidget               *widget,
  86                                                                 GdkEvent                *event,
  87                                                                 gpointer                 data);
  88 static void gtk_tree_view_column_button_clicked                (GtkWidget               *widget,
  89                                                                 gpointer                 data);
  90 static gboolean gtk_tree_view_column_mnemonic_activate         (GtkWidget *widget,
  91                                                                 gboolean   group_cycling,
  92                                                                 gpointer   data);
  93
  94 /* Property handlers */
  95 static void gtk_tree_view_model_sort_column_changed            (GtkTreeSortable         *sortable,
  96                                                                 GtkTreeViewColumn       *tree_column);
  97
  98 /* GtkCellArea/GtkCellAreaContext callbacks */
  99 static void gtk_tree_view_column_context_changed               (GtkCellAreaContext      *context,
 100                                                                 GParamSpec              *pspec,
 101                                                                 GtkTreeViewColumn       *tree_column);
 102 static void gtk_tree_view_column_add_editable_callback         (GtkCellArea             *area,
 103                                                                 GtkCellRenderer         *renderer,
 104                                                                 GtkCellEditable         *edit_widget,
 105                                                                 GdkRectangle            *cell_area,
 106                                                                 const gchar             *path_string,
 107                                                                 gpointer                 user_data);
 108 static void gtk_tree_view_column_remove_editable_callback      (GtkCellArea             *area,
 109                                                                 GtkCellRenderer         *renderer,
 110                                                                 GtkCellEditable         *edit_widget,
 111                                                                 gpointer                 user_data);
 112
 113 /* Internal functions */
 114 static void gtk_tree_view_column_sort                          (GtkTreeViewColumn       *tree_column,
 115                                                                 gpointer                 data);
 116 static void gtk_tree_view_column_setup_sort_column_id_callback (GtkTreeViewColumn       *tree_column);
 117 static void gtk_tree_view_column_set_attributesv               (GtkTreeViewColumn       *tree_column,
 118                                                                 GtkCellRenderer         *cell_renderer,
 119                                                                 va_list                  args);
 120
 121 /* GtkBuildable implementation */
 122 static void gtk_tree_view_column_buildable_init                 (GtkBuildableIface     *iface);
 123
 124
 125 struct _GtkTreeViewColumnPrivate
 126 {
 127   GtkWidget *tree_view;
 128   GtkWidget *button;
 129   GtkWidget *child;
 130   GtkWidget *arrow;
 131   GtkWidget *alignment;
 132   GdkWindow *window;
 133   gfloat xalign;
 134   gulong property_changed_signal;
 135
 136   /* Sizing fields */
 137   /* see gtk+/doc/tree-column-sizing.txt for more information on them */
 138   GtkTreeViewColumnSizing column_type;
 139   gint padding;
 140   gint resized_width;
 141   gint width;
 142   gint fixed_width;
 143   gint min_width;
 144   gint max_width;
 145
 146   /* dragging columns */
 147   gint drag_x;
 148   gint drag_y;
 149
 150   gchar *title;
 151
 152   /* Sorting */
 153   gulong      sort_clicked_signal;
 154   gulong      sort_column_changed_signal;
 155   gint        sort_column_id;
 156   GtkSortType sort_order;
 157
 158   /* Cell area */
 159   GtkCellArea        *cell_area;
 160   GtkCellAreaContext *cell_area_context;
 161   gulong              add_editable_signal;
 162   gulong              remove_editable_signal;
 163   gulong              context_changed_signal;
 164
 165   /* Flags */
 166   guint visible             : 1;
 167   guint resizable           : 1;
 168   guint clickable           : 1;
 169   guint dirty               : 1;
 170   guint show_sort_indicator : 1;
 171   guint maybe_reordered     : 1;
 172   guint reorderable         : 1;
 173   guint use_resized_width   : 1;
 174   guint expand              : 1;
 175 };
 176
 177 enum
 178 {
 179   PROP_0,
 180   PROP_VISIBLE,
 181   PROP_RESIZABLE,
 182   PROP_WIDTH,
 183   PROP_SPACING,
 184   PROP_SIZING,
 185   PROP_FIXED_WIDTH,
 186   PROP_MIN_WIDTH,
 187   PROP_MAX_WIDTH,
 188   PROP_TITLE,
 189   PROP_EXPAND,
 190   PROP_CLICKABLE,
 191   PROP_WIDGET,
 192   PROP_ALIGNMENT,
 193   PROP_REORDERABLE,
 194   PROP_SORT_INDICATOR,
 195   PROP_SORT_ORDER,
 196   PROP_SORT_COLUMN_ID,
 197   PROP_CELL_AREA
 198 };
 199
 200 enum
 201 {
 202   CLICKED,
 203   LAST_SIGNAL
 204 };
 205
 206 static guint tree_column_signals[LAST_SIGNAL] = { 0 };
 207
 208 G_DEFINE_TYPE_WITH_CODE (GtkTreeViewColumn, gtk_tree_view_column, G_TYPE_INITIALLY_UNOWNED,
 209                          G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT,
 210                                                 gtk_tree_view_column_cell_layout_init)
 211                          G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
 212                                                 gtk_tree_view_column_buildable_init))
 213
 214
 215 static void
 216 gtk_tree_view_column_class_init (GtkTreeViewColumnClass *class)
 217 {
 218   GObjectClass *object_class;
 219
 220   object_class = (GObjectClass*) class;
 221
 222   class->clicked = NULL;
 223
 224   object_class->constructor = gtk_tree_view_column_constructor;
 225   object_class->finalize = gtk_tree_view_column_finalize;
 226   object_class->dispose = gtk_tree_view_column_dispose;
 227   object_class->set_property = gtk_tree_view_column_set_property;
 228   object_class->get_property = gtk_tree_view_column_get_property;
 229
 230   tree_column_signals[CLICKED] =
 231     g_signal_new (I_("clicked"),
 232                   G_OBJECT_CLASS_TYPE (object_class),
 233                   G_SIGNAL_RUN_LAST,
 234                   G_STRUCT_OFFSET (GtkTreeViewColumnClass, clicked),
 235                   NULL, NULL,
 236                   _gtk_marshal_VOID__VOID,
 237                   G_TYPE_NONE, 0);
 238
 239   g_object_class_install_property (object_class,
 240                                    PROP_VISIBLE,
 241                                    g_param_spec_boolean ("visible",
 242                                                         P_("Visible"),
 243                                                         P_("Whether to display the column"),
 244                                                          TRUE,
 245                                                          GTK_PARAM_READWRITE));
 246
 247   g_object_class_install_property (object_class,
 248                                    PROP_RESIZABLE,
 249                                    g_param_spec_boolean ("resizable",
 250                                                          P_("Resizable"),
 251                                                          P_("Column is user-resizable"),
 252                                                          FALSE,
 253                                                          GTK_PARAM_READWRITE));
 254
 255   g_object_class_install_property (object_class,
 256                                    PROP_WIDTH,
 257                                    g_param_spec_int ("width",
 258                                                      P_("Width"),
 259                                                      P_("Current width of the column"),
 260                                                      0,
 261                                                      G_MAXINT,
 262                                                      0,
 263                                                      GTK_PARAM_READABLE));
 264   g_object_class_install_property (object_class,
 265                                    PROP_SPACING,
 266                                    g_param_spec_int ("spacing",
 267                                                      P_("Spacing"),
 268                                                      P_("Space which is inserted between cells"),
 269                                                      0,
 270                                                      G_MAXINT,
 271                                                      0,
 272                                                      GTK_PARAM_READWRITE));
 273   g_object_class_install_property (object_class,
 274                                    PROP_SIZING,
 275                                    g_param_spec_enum ("sizing",
 276                                                       P_("Sizing"),
 277                                                       P_("Resize mode of the column"),
 278                                                       GTK_TYPE_TREE_VIEW_COLUMN_SIZING,
 279                                                       GTK_TREE_VIEW_COLUMN_GROW_ONLY,
 280                                                       GTK_PARAM_READWRITE));
 281
 282   g_object_class_install_property (object_class,
 283                                    PROP_FIXED_WIDTH,
 284                                    g_param_spec_int ("fixed-width",
 285                                                      P_("Fixed Width"),
 286                                                      P_("Current fixed width of the column"),
 287                                                      1,
 288                                                      G_MAXINT,
 289                                                      1, /* not useful */
 290                                                      GTK_PARAM_READWRITE));
 291
 292   g_object_class_install_property (object_class,
 293                                    PROP_MIN_WIDTH,
 294                                    g_param_spec_int ("min-width",
 295                                                      P_("Minimum Width"),
 296                                                      P_("Minimum allowed width of the column"),
 297                                                      -1,
 298                                                      G_MAXINT,
 299                                                      -1,
 300                                                      GTK_PARAM_READWRITE));
 301
 302   g_object_class_install_property (object_class,
 303                                    PROP_MAX_WIDTH,
 304                                    g_param_spec_int ("max-width",
 305                                                      P_("Maximum Width"),
 306                                                      P_("Maximum allowed width of the column"),
 307                                                      -1,
 308                                                      G_MAXINT,
 309                                                      -1,
 310                                                      GTK_PARAM_READWRITE));
 311
 312   g_object_class_install_property (object_class,
 313                                    PROP_TITLE,
 314                                    g_param_spec_string ("title",
 315                                                         P_("Title"),
 316                                                         P_("Title to appear in column header"),
 317                                                         "",
 318                                                         GTK_PARAM_READWRITE));
 319
 320   g_object_class_install_property (object_class,
 321                                    PROP_EXPAND,
 322                                    g_param_spec_boolean ("expand",
 323                                                          P_("Expand"),
 324                                                          P_("Column gets share of extra width allocated to the widget"),
 325                                                          FALSE,
 326                                                          GTK_PARAM_READWRITE));
 327
 328   g_object_class_install_property (object_class,
 329                                    PROP_CLICKABLE,
 330                                    g_param_spec_boolean ("clickable",
 331                                                         P_("Clickable"),
 332                                                         P_("Whether the header can be clicked"),
 333                                                          FALSE,
 334                                                          GTK_PARAM_READWRITE));
 335
 336
 337   g_object_class_install_property (object_class,
 338                                    PROP_WIDGET,
 339                                    g_param_spec_object ("widget",
 340                                                         P_("Widget"),
 341                                                         P_("Widget to put in column header button instead of column title"),
 342                                                         GTK_TYPE_WIDGET,
 343                                                         GTK_PARAM_READWRITE));
 344
 345   g_object_class_install_property (object_class,
 346                                    PROP_ALIGNMENT,
 347                                    g_param_spec_float ("alignment",
 348                                                        P_("Alignment"),
 349                                                        P_("X Alignment of the column header text or widget"),
 350                                                        0.0,
 351                                                        1.0,
 352                                                        0.0,
 353                                                        GTK_PARAM_READWRITE));
 354
 355   g_object_class_install_property (object_class,
 356                                    PROP_REORDERABLE,
 357                                    g_param_spec_boolean ("reorderable",
 358                                                          P_("Reorderable"),
 359                                                          P_("Whether the column can be reordered around the headers"),
 360                                                          FALSE,
 361                                                          GTK_PARAM_READWRITE));
 362
 363   g_object_class_install_property (object_class,
 364                                    PROP_SORT_INDICATOR,
 365                                    g_param_spec_boolean ("sort-indicator",
 366                                                         P_("Sort indicator"),
 367                                                         P_("Whether to show a sort indicator"),
 368                                                          FALSE,
 369                                                          GTK_PARAM_READWRITE));
 370
 371   g_object_class_install_property (object_class,
 372                                    PROP_SORT_ORDER,
 373                                    g_param_spec_enum ("sort-order",
 374                                                       P_("Sort order"),
 375                                                       P_("Sort direction the sort indicator should indicate"),
 376                                                       GTK_TYPE_SORT_TYPE,
 377                                                       GTK_SORT_ASCENDING,
 378                                                       GTK_PARAM_READWRITE));
 379
 380   /**
 381    * GtkTreeViewColumn:sort-column-id:
 382    *
 383    * Logical sort column ID this column sorts on when selected for sorting. Setting the sort column ID makes the column header
 384    * clickable. Set to %-1 to make the column unsortable.
 385    *
 386    * Since: 2.18
 387    **/
 388   g_object_class_install_property (object_class,
 389                                    PROP_SORT_COLUMN_ID,
 390                                    g_param_spec_int ("sort-column-id",
 391                                                      P_("Sort column ID"),
 392                                                      P_("Logical sort column ID this column sorts on when selected for sorting"),
 393                                                      -1,
 394                                                      G_MAXINT,
 395                                                      -1,
 396                                                      GTK_PARAM_READWRITE));
 397
 398   /**
 399    * GtkTreeViewColumn:cell-area:
 400    *
 401    * The #GtkCellArea used to layout cell renderers for this column.
 402    *
 403    * Since: 3.0
 404    */
 405   g_object_class_install_property (object_class,
 406                                    PROP_CELL_AREA,
 407                                    g_param_spec_object ("cell-area",
 408                                                         P_("Cell Area"),
 409                                                         P_("The GtkCellArea used to layout cells"),
 410                                                         GTK_TYPE_CELL_AREA,
 411                                                         GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
 412
 413   g_type_class_add_private (class, sizeof (GtkTreeViewColumnPrivate));
 414 }
 415
 416 static void
 417 gtk_tree_view_column_custom_tag_end (GtkBuildable *buildable,
 418                                      GtkBuilder   *builder,
 419                                      GObject      *child,
 420                                      const gchar  *tagname,
 421                                      gpointer     *data)
 422 {
 423   /* Just ignore the boolean return from here */
 424   _gtk_cell_layout_buildable_custom_tag_end (buildable, builder, child, tagname, data);
 425 }
 426
 427 static void
 428 gtk_tree_view_column_buildable_init (GtkBuildableIface *iface)
 429 {
 430   iface->add_child = _gtk_cell_layout_buildable_add_child;
 431   iface->custom_tag_start = _gtk_cell_layout_buildable_custom_tag_start;
 432   iface->custom_tag_end = gtk_tree_view_column_custom_tag_end;
 433 }
 434
 435 static void
 436 gtk_tree_view_column_cell_layout_init (GtkCellLayoutIface *iface)
 437 {
 438   iface->get_area = gtk_tree_view_column_cell_layout_get_area;
 439 }
 440
 441 static void
 442 gtk_tree_view_column_init (GtkTreeViewColumn *tree_column)
 443 {
 444   GtkTreeViewColumnPrivate *priv;
 445
 446   tree_column->priv = G_TYPE_INSTANCE_GET_PRIVATE (tree_column,
 447                                                    GTK_TYPE_TREE_VIEW_COLUMN,
 448                                                    GtkTreeViewColumnPrivate);
 449   priv = tree_column->priv;
 450
 451   priv->button = NULL;
 452   priv->xalign = 0.0;
 453   priv->width = 0;
 454   priv->padding = -1;
 455   priv->min_width = -1;
 456   priv->max_width = -1;
 457   priv->resized_width = 0;
 458   priv->column_type = GTK_TREE_VIEW_COLUMN_GROW_ONLY;
 459   priv->visible = TRUE;
 460   priv->resizable = FALSE;
 461   priv->expand = FALSE;
 462   priv->clickable = FALSE;
 463   priv->dirty = TRUE;
 464   priv->sort_order = GTK_SORT_ASCENDING;
 465   priv->show_sort_indicator = FALSE;
 466   priv->property_changed_signal = 0;
 467   priv->sort_clicked_signal = 0;
 468   priv->sort_column_changed_signal = 0;
 469   priv->sort_column_id = -1;
 470   priv->reorderable = FALSE;
 471   priv->maybe_reordered = FALSE;
 472   priv->fixed_width = 1;
 473   priv->use_resized_width = FALSE;
 474   priv->title = g_strdup ("");
 475 }
 476
 477 static GObject *
 478 gtk_tree_view_column_constructor (GType                    type,
 479                                   guint                    n_construct_properties,
 480                                   GObjectConstructParam   *construct_properties)
 481 {
 482   GtkTreeViewColumn        *tree_column;
 483   GtkTreeViewColumnPrivate *priv;
 484   GObject                  *object;
 485
 486   object = G_OBJECT_CLASS (gtk_tree_view_column_parent_class)->constructor
 487     (type, n_construct_properties, construct_properties);
 488
 489   tree_column = (GtkTreeViewColumn *) object;
 490   priv        = tree_column->priv;
 491
 492   if (!priv->cell_area)
 493     {
 494       priv->cell_area = gtk_cell_area_box_new ();
 495       g_object_ref_sink (priv->cell_area);
 496     }
 497
 498   gtk_cell_area_set_style_detail (priv->cell_area, "treeview");
 499
 500   priv->add_editable_signal =
 501     g_signal_connect (priv->cell_area, "add-editable",
 502                       G_CALLBACK (gtk_tree_view_column_add_editable_callback),
 503                       tree_column);
 504   priv->remove_editable_signal =
 505     g_signal_connect (priv->cell_area, "remove-editable",
 506                       G_CALLBACK (gtk_tree_view_column_remove_editable_callback),
 507                       tree_column);
 508
 509   priv->cell_area_context = gtk_cell_area_create_context (priv->cell_area);
 510
 511   priv->context_changed_signal =
 512     g_signal_connect (priv->cell_area_context, "notify",
 513                       G_CALLBACK (gtk_tree_view_column_context_changed), tree_column);
 514
 515   return object;
 516 }
 517
 518 static void
 519 gtk_tree_view_column_dispose (GObject *object)
 520 {
 521   GtkTreeViewColumn        *tree_column = (GtkTreeViewColumn *) object;
 522   GtkTreeViewColumnPrivate *priv        = tree_column->priv;
 523
 524   if (priv->cell_area_context)
 525     {
 526       g_signal_handler_disconnect (priv->cell_area_context,
 527                                    priv->context_changed_signal);
 528
 529       g_object_unref (priv->cell_area_context);
 530
 531       priv->cell_area_context = NULL;
 532       priv->context_changed_signal = 0;
 533     }
 534
 535   if (priv->cell_area)
 536     {
 537       g_signal_handler_disconnect (priv->cell_area,
 538                                    priv->add_editable_signal);
 539       g_signal_handler_disconnect (priv->cell_area,
 540                                    priv->remove_editable_signal);
 541
 542       g_object_unref (priv->cell_area);
 543       priv->cell_area = NULL;
 544       priv->add_editable_signal = 0;
 545       priv->remove_editable_signal = 0;
 546     }
 547
 548   if (priv->child)
 549     {
 550       g_object_unref (priv->child);
 551       priv->child = NULL;
 552     }
 553
 554   G_OBJECT_CLASS (gtk_tree_view_column_parent_class)->dispose (object);
 555 }
 556
 557 static void
 558 gtk_tree_view_column_finalize (GObject *object)
 559 {
 560   GtkTreeViewColumn        *tree_column = (GtkTreeViewColumn *) object;
 561   GtkTreeViewColumnPrivate *priv        = tree_column->priv;
 562
 563   g_free (priv->title);
 564
 565   G_OBJECT_CLASS (gtk_tree_view_column_parent_class)->finalize (object);
 566 }
 567
 568 static void
 569 gtk_tree_view_column_set_property (GObject         *object,
 570                                    guint            prop_id,
 571                                    const GValue    *value,
 572                                    GParamSpec      *pspec)
 573 {
 574   GtkTreeViewColumn *tree_column;
 575   GtkCellArea       *area;
 576
 577   tree_column = GTK_TREE_VIEW_COLUMN (object);
 578
 579   switch (prop_id)
 580     {
 581     case PROP_VISIBLE:
 582       gtk_tree_view_column_set_visible (tree_column,
 583                                         g_value_get_boolean (value));
 584       break;
 585
 586     case PROP_RESIZABLE:
 587       gtk_tree_view_column_set_resizable (tree_column,
 588                                           g_value_get_boolean (value));
 589       break;
 590
 591     case PROP_SIZING:
 592       gtk_tree_view_column_set_sizing (tree_column,
 593                                        g_value_get_enum (value));
 594       break;
 595
 596     case PROP_FIXED_WIDTH:
 597       gtk_tree_view_column_set_fixed_width (tree_column,
 598                                             g_value_get_int (value));
 599       break;
 600
 601     case PROP_MIN_WIDTH:
 602       gtk_tree_view_column_set_min_width (tree_column,
 603                                           g_value_get_int (value));
 604       break;
 605
 606     case PROP_MAX_WIDTH:
 607       gtk_tree_view_column_set_max_width (tree_column,
 608                                           g_value_get_int (value));
 609       break;
 610
 611     case PROP_SPACING:
 612       gtk_tree_view_column_set_spacing (tree_column,
 613                                         g_value_get_int (value));
 614       break;
 615
 616     case PROP_TITLE:
 617       gtk_tree_view_column_set_title (tree_column,
 618                                       g_value_get_string (value));
 619       break;
 620
 621     case PROP_EXPAND:
 622       gtk_tree_view_column_set_expand (tree_column,
 623                                        g_value_get_boolean (value));
 624       break;
 625
 626     case PROP_CLICKABLE:
 627       gtk_tree_view_column_set_clickable (tree_column,
 628                                           g_value_get_boolean (value));
 629       break;
 630
 631     case PROP_WIDGET:
 632       gtk_tree_view_column_set_widget (tree_column,
 633                                        (GtkWidget*) g_value_get_object (value));
 634       break;
 635
 636     case PROP_ALIGNMENT:
 637       gtk_tree_view_column_set_alignment (tree_column,
 638                                           g_value_get_float (value));
 639       break;
 640
 641     case PROP_REORDERABLE:
 642       gtk_tree_view_column_set_reorderable (tree_column,
 643                                             g_value_get_boolean (value));
 644       break;
 645
 646     case PROP_SORT_INDICATOR:
 647       gtk_tree_view_column_set_sort_indicator (tree_column,
 648                                                g_value_get_boolean (value));
 649       break;
 650
 651     case PROP_SORT_ORDER:
 652       gtk_tree_view_column_set_sort_order (tree_column,
 653                                            g_value_get_enum (value));
 654       break;
 655
 656     case PROP_SORT_COLUMN_ID:
 657       gtk_tree_view_column_set_sort_column_id (tree_column,
 658                                                g_value_get_int (value));
 659       break;
 660
 661     case PROP_CELL_AREA:
 662       /* Construct-only, can only be assigned once */
 663       area = g_value_get_object (value);
 664
 665       if (area)
 666         tree_column->priv->cell_area = g_object_ref_sink (area);
 667       break;
 668
 669     default:
 670       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 671       break;
 672     }
 673 }
 674
 675 static void
 676 gtk_tree_view_column_get_property (GObject         *object,
 677                                    guint            prop_id,
 678                                    GValue          *value,
 679                                    GParamSpec      *pspec)
 680 {
 681   GtkTreeViewColumn *tree_column;
 682
 683   tree_column = GTK_TREE_VIEW_COLUMN (object);
 684
 685   switch (prop_id)
 686     {
 687     case PROP_VISIBLE:
 688       g_value_set_boolean (value,
 689                            gtk_tree_view_column_get_visible (tree_column));
 690       break;
 691
 692     case PROP_RESIZABLE:
 693       g_value_set_boolean (value,
 694                            gtk_tree_view_column_get_resizable (tree_column));
 695       break;
 696
 697     case PROP_WIDTH:
 698       g_value_set_int (value,
 699                        gtk_tree_view_column_get_width (tree_column));
 700       break;
 701
 702     case PROP_SPACING:
 703       g_value_set_int (value,
 704                        gtk_tree_view_column_get_spacing (tree_column));
 705       break;
 706
 707     case PROP_SIZING:
 708       g_value_set_enum (value,
 709                         gtk_tree_view_column_get_sizing (tree_column));
 710       break;
 711
 712     case PROP_FIXED_WIDTH:
 713       g_value_set_int (value,
 714                        gtk_tree_view_column_get_fixed_width (tree_column));
 715       break;
 716
 717     case PROP_MIN_WIDTH:
 718       g_value_set_int (value,
 719                        gtk_tree_view_column_get_min_width (tree_column));
 720       break;
 721
 722     case PROP_MAX_WIDTH:
 723       g_value_set_int (value,
 724                        gtk_tree_view_column_get_max_width (tree_column));
 725       break;
 726
 727     case PROP_TITLE:
 728       g_value_set_string (value,
 729                           gtk_tree_view_column_get_title (tree_column));
 730       break;
 731
 732     case PROP_EXPAND:
 733       g_value_set_boolean (value,
 734                           gtk_tree_view_column_get_expand (tree_column));
 735       break;
 736
 737     case PROP_CLICKABLE:
 738       g_value_set_boolean (value,
 739                            gtk_tree_view_column_get_clickable (tree_column));
 740       break;
 741
 742     case PROP_WIDGET:
 743       g_value_set_object (value,
 744                           (GObject*) gtk_tree_view_column_get_widget (tree_column));
 745       break;
 746
 747     case PROP_ALIGNMENT:
 748       g_value_set_float (value,
 749                          gtk_tree_view_column_get_alignment (tree_column));
 750       break;
 751
 752     case PROP_REORDERABLE:
 753       g_value_set_boolean (value,
 754                            gtk_tree_view_column_get_reorderable (tree_column));
 755       break;
 756
 757     case PROP_SORT_INDICATOR:
 758       g_value_set_boolean (value,
 759                            gtk_tree_view_column_get_sort_indicator (tree_column));
 760       break;
 761
 762     case PROP_SORT_ORDER:
 763       g_value_set_enum (value,
 764                         gtk_tree_view_column_get_sort_order (tree_column));
 765       break;
 766
 767     case PROP_SORT_COLUMN_ID:
 768       g_value_set_int (value,
 769                        gtk_tree_view_column_get_sort_column_id (tree_column));
 770       break;
 771
 772     case PROP_CELL_AREA:
 773       g_value_set_object (value, tree_column->priv->cell_area);
 774       break;
 775
 776     default:
 777       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 778       break;
 779     }
 780 }
 781
 782 /* Implementation of GtkCellLayout interface
 783  */
 784 static GtkCellArea *
 785 gtk_tree_view_column_cell_layout_get_area (GtkCellLayout   *cell_layout)
 786 {
 787   GtkTreeViewColumn        *column = GTK_TREE_VIEW_COLUMN (cell_layout);
 788   GtkTreeViewColumnPrivate *priv   = column->priv;
 789
 790   return priv->cell_area;
 791 }
 792
 793 /* Button handling code
 794  */
 795 static void
 796 gtk_tree_view_column_create_button (GtkTreeViewColumn *tree_column)
 797 {
 798   GtkTreeViewColumnPrivate *priv = tree_column->priv;
 799   GtkTreeView *tree_view;
 800   GtkWidget *child;
 801   GtkWidget *hbox;
 802
 803   tree_view = (GtkTreeView *) priv->tree_view;
 804
 805   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
 806   g_return_if_fail (priv->button == NULL);
 807
 808   gtk_widget_push_composite_child ();
 809   priv->button = gtk_button_new ();
 810   gtk_widget_add_events (priv->button, GDK_POINTER_MOTION_MASK);
 811   gtk_widget_pop_composite_child ();
 812
 813   /* make sure we own a reference to it as well. */
 814   if (_gtk_tree_view_get_header_window (tree_view))
 815     gtk_widget_set_parent_window (priv->button, _gtk_tree_view_get_header_window (tree_view));
 816
 817   gtk_widget_set_parent (priv->button, GTK_WIDGET (tree_view));
 818
 819   g_signal_connect (priv->button, "event",
 820                     G_CALLBACK (gtk_tree_view_column_button_event),
 821                     tree_column);
 822   g_signal_connect (priv->button, "clicked",
 823                     G_CALLBACK (gtk_tree_view_column_button_clicked),
 824                     tree_column);
 825
 826   priv->alignment = gtk_alignment_new (priv->xalign, 0.5, 0.0, 0.0);
 827
 828   hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 2);
 829   priv->arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_IN);
 830
 831   if (priv->child)
 832     child = priv->child;
 833   else
 834     {
 835       child = gtk_label_new (priv->title);
 836       gtk_widget_show (child);
 837     }
 838
 839   g_signal_connect (child, "mnemonic-activate",
 840                     G_CALLBACK (gtk_tree_view_column_mnemonic_activate),
 841                     tree_column);
 842
 843   if (priv->xalign <= 0.5)
 844     gtk_box_pack_end (GTK_BOX (hbox), priv->arrow, FALSE, FALSE, 0);
 845   else
 846     gtk_box_pack_start (GTK_BOX (hbox), priv->arrow, FALSE, FALSE, 0);
 847
 848   gtk_box_pack_start (GTK_BOX (hbox), priv->alignment, TRUE, TRUE, 0);
 849
 850   gtk_container_add (GTK_CONTAINER (priv->alignment), child);
 851   gtk_container_add (GTK_CONTAINER (priv->button), hbox);
 852
 853   gtk_widget_show (hbox);
 854   gtk_widget_show (priv->alignment);
 855   gtk_tree_view_column_update_button (tree_column);
 856 }
 857
 858 static void
 859 gtk_tree_view_column_update_button (GtkTreeViewColumn *tree_column)
 860 {
 861   GtkTreeViewColumnPrivate *priv = tree_column->priv;
 862   gint sort_column_id = -1;
 863   GtkWidget *hbox;
 864   GtkWidget *alignment;
 865   GtkWidget *arrow;
 866   GtkWidget *current_child;
 867   GtkArrowType arrow_type = GTK_ARROW_NONE;
 868   GtkTreeModel *model;
 869
 870   if (priv->tree_view)
 871     model = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
 872   else
 873     model = NULL;
 874
 875   /* Create a button if necessary */
 876   if (priv->visible &&
 877       priv->button == NULL &&
 878       priv->tree_view &&
 879       gtk_widget_get_realized (priv->tree_view))
 880     gtk_tree_view_column_create_button (tree_column);
 881
 882   if (! priv->button)
 883     return;
 884
 885   hbox = gtk_bin_get_child (GTK_BIN (priv->button));
 886   alignment = priv->alignment;
 887   arrow = priv->arrow;
 888   current_child = gtk_bin_get_child (GTK_BIN (alignment));
 889
 890   /* Set up the actual button */
 891   gtk_alignment_set (GTK_ALIGNMENT (alignment), priv->xalign,
 892                      0.5, 0.0, 0.0);
 893
 894   if (priv->child)
 895     {
 896       if (current_child != priv->child)
 897         {
 898           gtk_container_remove (GTK_CONTAINER (alignment),
 899                                 current_child);
 900           gtk_container_add (GTK_CONTAINER (alignment),
 901                              priv->child);
 902         }
 903     }
 904   else
 905     {
 906       if (current_child == NULL)
 907         {
 908           current_child = gtk_label_new (NULL);
 909           gtk_widget_show (current_child);
 910           gtk_container_add (GTK_CONTAINER (alignment),
 911                              current_child);
 912         }
 913
 914       g_return_if_fail (GTK_IS_LABEL (current_child));
 915
 916       if (priv->title)
 917         gtk_label_set_text_with_mnemonic (GTK_LABEL (current_child),
 918                                           priv->title);
 919       else
 920         gtk_label_set_text_with_mnemonic (GTK_LABEL (current_child),
 921                                           "");
 922     }
 923
 924   if (GTK_IS_TREE_SORTABLE (model))
 925     gtk_tree_sortable_get_sort_column_id (GTK_TREE_SORTABLE (model),
 926                                           &sort_column_id,
 927                                           NULL);
 928
 929   if (priv->show_sort_indicator)
 930     {
 931       gboolean alternative;
 932
 933       g_object_get (gtk_widget_get_settings (priv->tree_view),
 934                     "gtk-alternative-sort-arrows", &alternative,
 935                     NULL);
 936
 937       switch (priv->sort_order)
 938         {
 939           case GTK_SORT_ASCENDING:
 940             arrow_type = alternative ? GTK_ARROW_UP : GTK_ARROW_DOWN;
 941             break;
 942
 943           case GTK_SORT_DESCENDING:
 944             arrow_type = alternative ? GTK_ARROW_DOWN : GTK_ARROW_UP;
 945             break;
 946
 947           default:
 948             g_warning (G_STRLOC": bad sort order");
 949             break;
 950         }
 951     }
 952
 953   gtk_arrow_set (GTK_ARROW (arrow),
 954                  arrow_type,
 955                  GTK_SHADOW_IN);
 956
 957   /* Put arrow on the right if the text is left-or-center justified, and on the
 958    * left otherwise; do this by packing boxes, so flipping text direction will
 959    * reverse things
 960    */
 961   g_object_ref (arrow);
 962   gtk_container_remove (GTK_CONTAINER (hbox), arrow);
 963
 964   if (priv->xalign <= 0.5)
 965     {
 966       gtk_box_pack_end (GTK_BOX (hbox), arrow, FALSE, FALSE, 0);
 967     }
 968   else
 969     {
 970       gtk_box_pack_start (GTK_BOX (hbox), arrow, FALSE, FALSE, 0);
 971       /* move it to the front */
 972       gtk_box_reorder_child (GTK_BOX (hbox), arrow, 0);
 973     }
 974   g_object_unref (arrow);
 975
 976   if (priv->show_sort_indicator
 977       || (GTK_IS_TREE_SORTABLE (model) && priv->sort_column_id >= 0))
 978     gtk_widget_show (arrow);
 979   else
 980     gtk_widget_hide (arrow);
 981
 982   /* It's always safe to hide the button.  It isn't always safe to show it, as
 983    * if you show it before it's realized, it'll get the wrong window. */
 984   if (priv->button &&
 985       priv->tree_view != NULL &&
 986       gtk_widget_get_realized (priv->tree_view))
 987     {
 988       if (priv->visible)
 989         {
 990           gtk_widget_show_now (priv->button);
 991           if (priv->window)
 992             {
 993               if (priv->resizable)
 994                 {
 995                   gdk_window_show (priv->window);
 996                   gdk_window_raise (priv->window);
 997                 }
 998               else
 999                 {
1000                   gdk_window_hide (priv->window);
1001                 }
1002             }
1003         }
1004       else
1005         {
1006           gtk_widget_hide (priv->button);
1007           if (priv->window)
1008             gdk_window_hide (priv->window);
1009         }
1010     }
1011
1012   if (priv->reorderable || priv->clickable)
1013     {
1014       gtk_widget_set_can_focus (priv->button, TRUE);
1015     }
1016   else
1017     {
1018       gtk_widget_set_can_focus (priv->button, FALSE);
1019       if (gtk_widget_has_focus (priv->button))
1020         {
1021           GtkWidget *toplevel = gtk_widget_get_toplevel (priv->tree_view);
1022           if (gtk_widget_is_toplevel (toplevel))
1023             {
1024               gtk_window_set_focus (GTK_WINDOW (toplevel), NULL);
1025             }
1026         }
1027     }
1028   /* Queue a resize on the assumption that we always want to catch all changes
1029    * and columns don't change all that often.
1030    */
1031   if (gtk_widget_get_realized (priv->tree_view))
1032      gtk_widget_queue_resize (priv->tree_view);
1033
1034 }
1035
1036 /* Button signal handlers
1037  */
1038
1039 static gint
1040 gtk_tree_view_column_button_event (GtkWidget *widget,
1041                                    GdkEvent  *event,
1042                                    gpointer   data)
1043 {
1044   GtkTreeViewColumn        *column = (GtkTreeViewColumn *) data;
1045   GtkTreeViewColumnPrivate *priv   = column->priv;
1046
1047   g_return_val_if_fail (event != NULL, FALSE);
1048
1049   if (event->type == GDK_BUTTON_PRESS &&
1050       priv->reorderable &&
1051       ((GdkEventButton *)event)->button == 1)
1052     {
1053       priv->maybe_reordered = TRUE;
1054       gdk_window_get_pointer (gtk_button_get_event_window (GTK_BUTTON (widget)),
1055                               &priv->drag_x,
1056                               &priv->drag_y,
1057                               NULL);
1058       gtk_widget_grab_focus (widget);
1059     }
1060
1061   if (event->type == GDK_BUTTON_RELEASE ||
1062       event->type == GDK_LEAVE_NOTIFY)
1063     priv->maybe_reordered = FALSE;
1064
1065   if (event->type == GDK_MOTION_NOTIFY &&
1066       priv->maybe_reordered &&
1067       (gtk_drag_check_threshold (widget,
1068                                  priv->drag_x,
1069                                  priv->drag_y,
1070                                  (gint) ((GdkEventMotion *)event)->x,
1071                                  (gint) ((GdkEventMotion *)event)->y)))
1072     {
1073       priv->maybe_reordered = FALSE;
1074       _gtk_tree_view_column_start_drag (GTK_TREE_VIEW (priv->tree_view), column,
1075                                         event->motion.device);
1076       return TRUE;
1077     }
1078
1079   if (priv->clickable == FALSE)
1080     {
1081       switch (event->type)
1082         {
1083         case GDK_BUTTON_PRESS:
1084         case GDK_2BUTTON_PRESS:
1085         case GDK_3BUTTON_PRESS:
1086         case GDK_MOTION_NOTIFY:
1087         case GDK_BUTTON_RELEASE:
1088         case GDK_ENTER_NOTIFY:
1089         case GDK_LEAVE_NOTIFY:
1090           return TRUE;
1091         default:
1092           return FALSE;
1093         }
1094     }
1095   return FALSE;
1096 }
1097
1098
1099 static void
1100 gtk_tree_view_column_button_clicked (GtkWidget *widget, gpointer data)
1101 {
1102   g_signal_emit_by_name (data, "clicked");
1103 }
1104
1105 static gboolean
1106 gtk_tree_view_column_mnemonic_activate (GtkWidget *widget,
1107                                         gboolean   group_cycling,
1108                                         gpointer   data)
1109 {
1110   GtkTreeViewColumn        *column = (GtkTreeViewColumn *)data;
1111   GtkTreeViewColumnPrivate *priv   = column->priv;
1112
1113   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), FALSE);
1114
1115   _gtk_tree_view_set_focus_column (GTK_TREE_VIEW (priv->tree_view), column);
1116
1117   if (priv->clickable)
1118     gtk_button_clicked (GTK_BUTTON (priv->button));
1119   else if (gtk_widget_get_can_focus (priv->button))
1120     gtk_widget_grab_focus (priv->button);
1121   else
1122     gtk_widget_grab_focus (priv->tree_view);
1123
1124   return TRUE;
1125 }
1126
1127 static void
1128 gtk_tree_view_model_sort_column_changed (GtkTreeSortable   *sortable,
1129                                          GtkTreeViewColumn *column)
1130 {
1131   GtkTreeViewColumnPrivate *priv = column->priv;
1132   gint sort_column_id;
1133   GtkSortType order;
1134
1135   if (gtk_tree_sortable_get_sort_column_id (sortable,
1136                                             &sort_column_id,
1137                                             &order))
1138     {
1139       if (sort_column_id == priv->sort_column_id)
1140         {
1141           gtk_tree_view_column_set_sort_indicator (column, TRUE);
1142           gtk_tree_view_column_set_sort_order (column, order);
1143         }
1144       else
1145         {
1146           gtk_tree_view_column_set_sort_indicator (column, FALSE);
1147         }
1148     }
1149   else
1150     {
1151       gtk_tree_view_column_set_sort_indicator (column, FALSE);
1152     }
1153 }
1154
1155 static void
1156 gtk_tree_view_column_sort (GtkTreeViewColumn *tree_column,
1157                            gpointer           data)
1158 {
1159   GtkTreeViewColumnPrivate *priv = tree_column->priv;
1160   GtkTreeModel *model;
1161   GtkTreeSortable *sortable;
1162   gint sort_column_id;
1163   GtkSortType order;
1164   gboolean has_sort_column;
1165   gboolean has_default_sort_func;
1166
1167   g_return_if_fail (priv->tree_view != NULL);
1168
1169   model    = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
1170   sortable = GTK_TREE_SORTABLE (model);
1171
1172   has_sort_column =
1173     gtk_tree_sortable_get_sort_column_id (sortable,
1174                                           &sort_column_id,
1175                                           &order);
1176   has_default_sort_func =
1177     gtk_tree_sortable_has_default_sort_func (sortable);
1178
1179   if (has_sort_column &&
1180       sort_column_id == priv->sort_column_id)
1181     {
1182       if (order == GTK_SORT_ASCENDING)
1183         gtk_tree_sortable_set_sort_column_id (sortable,
1184                                               priv->sort_column_id,
1185                                               GTK_SORT_DESCENDING);
1186       else if (order == GTK_SORT_DESCENDING && has_default_sort_func)
1187         gtk_tree_sortable_set_sort_column_id (sortable,
1188                                               GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID,
1189                                               GTK_SORT_ASCENDING);
1190       else
1191         gtk_tree_sortable_set_sort_column_id (sortable,
1192                                               priv->sort_column_id,
1193                                               GTK_SORT_ASCENDING);
1194     }
1195   else
1196     {
1197       gtk_tree_sortable_set_sort_column_id (sortable,
1198                                             priv->sort_column_id,
1199                                             GTK_SORT_ASCENDING);
1200     }
1201 }
1202
1203 static void
1204 gtk_tree_view_column_setup_sort_column_id_callback (GtkTreeViewColumn *tree_column)
1205 {
1206   GtkTreeViewColumnPrivate *priv = tree_column->priv;
1207   GtkTreeModel *model;
1208
1209   if (priv->tree_view == NULL)
1210     return;
1211
1212   model = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
1213
1214   if (model == NULL)
1215     return;
1216
1217   if (GTK_IS_TREE_SORTABLE (model) &&
1218       priv->sort_column_id != -1)
1219     {
1220       gint real_sort_column_id;
1221       GtkSortType real_order;
1222
1223       if (priv->sort_column_changed_signal == 0)
1224         priv->sort_column_changed_signal =
1225           g_signal_connect (model, "sort-column-changed",
1226                             G_CALLBACK (gtk_tree_view_model_sort_column_changed),
1227                             tree_column);
1228
1229       if (gtk_tree_sortable_get_sort_column_id (GTK_TREE_SORTABLE (model),
1230                                                 &real_sort_column_id,
1231                                                 &real_order) &&
1232           (real_sort_column_id == priv->sort_column_id))
1233         {
1234           gtk_tree_view_column_set_sort_indicator (tree_column, TRUE);
1235           gtk_tree_view_column_set_sort_order (tree_column, real_order);
1236         }
1237       else
1238         {
1239           gtk_tree_view_column_set_sort_indicator (tree_column, FALSE);
1240         }
1241    }
1242 }
1243
1244 static void
1245 gtk_tree_view_column_context_changed  (GtkCellAreaContext      *context,
1246                                        GParamSpec              *pspec,
1247                                        GtkTreeViewColumn       *tree_column)
1248 {
1249   /* Here we want the column re-requested if the underlying context was
1250    * actually reset for any reason, this can happen if the underlying
1251    * area/cell configuration changes (i.e. cell packing properties
1252    * or cell spacing and the like)
1253    *
1254    * Note that we block this handler while requesting for sizes
1255    * so there is no need to check for the new context size being -1,
1256    * we also block the handler when explicitly resetting the context
1257    * so as to avoid some infinite stack recursion.
1258    */
1259   if (!strcmp (pspec->name, "minimum-width") ||
1260       !strcmp (pspec->name, "natural-width") ||
1261       !strcmp (pspec->name, "minimum-height") ||
1262       !strcmp (pspec->name, "natural-height"))
1263     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
1264 }
1265
1266 static void
1267 gtk_tree_view_column_add_editable_callback (GtkCellArea       *area,
1268                                             GtkCellRenderer   *renderer,
1269                                             GtkCellEditable   *edit_widget,
1270                                             GdkRectangle      *cell_area,
1271                                             const gchar       *path_string,
1272                                             gpointer           user_data)
1273 {
1274   GtkTreeViewColumn        *column = user_data;
1275   GtkTreeViewColumnPrivate *priv   = column->priv;
1276   GtkTreePath              *path;
1277
1278   if (priv->tree_view)
1279     {
1280       path = gtk_tree_path_new_from_string (path_string);
1281
1282       _gtk_tree_view_add_editable (GTK_TREE_VIEW (priv->tree_view),
1283                                    column,
1284                                    path,
1285                                    edit_widget,
1286                                    cell_area);
1287
1288       gtk_tree_path_free (path);
1289     }
1290 }
1291
1292 static void
1293 gtk_tree_view_column_remove_editable_callback (GtkCellArea     *area,
1294                                                GtkCellRenderer *renderer,
1295                                                GtkCellEditable *edit_widget,
1296                                                gpointer         user_data)
1297 {
1298   GtkTreeViewColumn        *column = user_data;
1299   GtkTreeViewColumnPrivate *priv   = column->priv;
1300
1301   if (priv->tree_view)
1302     _gtk_tree_view_remove_editable (GTK_TREE_VIEW (priv->tree_view),
1303                                     column,
1304                                     edit_widget);
1305 }
1306
1307 /* Exported Private Functions.
1308  * These should only be called by gtktreeview.c or gtktreeviewcolumn.c
1309  */
1310 void
1311 _gtk_tree_view_column_realize_button (GtkTreeViewColumn *column)
1312 {
1313   GtkTreeViewColumnPrivate *priv = column->priv;
1314   GtkAllocation allocation;
1315   GtkTreeView *tree_view;
1316   GdkWindowAttr attr;
1317   guint attributes_mask;
1318   gboolean rtl;
1319
1320   tree_view = (GtkTreeView *)priv->tree_view;
1321   rtl       = (gtk_widget_get_direction (priv->tree_view) == GTK_TEXT_DIR_RTL);
1322
1323   g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
1324   g_return_if_fail (gtk_widget_get_realized (priv->tree_view));
1325   g_return_if_fail (priv->button != NULL);
1326
1327   g_return_if_fail (_gtk_tree_view_get_header_window (tree_view) != NULL);
1328   gtk_widget_set_parent_window (priv->button, _gtk_tree_view_get_header_window (tree_view));
1329
1330   if (priv->visible)
1331     gtk_widget_show (priv->button);
1332
1333   attr.window_type = GDK_WINDOW_CHILD;
1334   attr.wclass = GDK_INPUT_ONLY;
1335   attr.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
1336   attr.event_mask = gtk_widget_get_events (GTK_WIDGET (tree_view)) |
1337                     (GDK_BUTTON_PRESS_MASK |
1338                      GDK_BUTTON_RELEASE_MASK |
1339                      GDK_POINTER_MOTION_MASK |
1340                      GDK_POINTER_MOTION_HINT_MASK |
1341                      GDK_KEY_PRESS_MASK);
1342   attributes_mask = GDK_WA_CURSOR | GDK_WA_X | GDK_WA_Y;
1343   attr.cursor = gdk_cursor_new_for_display
1344     (gdk_window_get_display (_gtk_tree_view_get_header_window (tree_view)), GDK_SB_H_DOUBLE_ARROW);
1345   attr.y = 0;
1346   attr.width = TREE_VIEW_DRAG_WIDTH;
1347   attr.height = _gtk_tree_view_get_header_height (tree_view);
1348
1349   gtk_widget_get_allocation (priv->button, &allocation);
1350   attr.x       = (allocation.x + (rtl ? 0 : allocation.width)) - TREE_VIEW_DRAG_WIDTH / 2;
1351   priv->window = gdk_window_new (_gtk_tree_view_get_header_window (tree_view),
1352                                  &attr, attributes_mask);
1353   gdk_window_set_user_data (priv->window, tree_view);
1354
1355   gtk_tree_view_column_update_button (column);
1356
1357   g_object_unref (attr.cursor);
1358 }
1359
1360 void
1361 _gtk_tree_view_column_unrealize_button (GtkTreeViewColumn *column)
1362 {
1363   GtkTreeViewColumnPrivate *priv;
1364
1365   g_return_if_fail (column != NULL);
1366
1367   priv = column->priv;
1368   g_return_if_fail (priv->window != NULL);
1369
1370   gdk_window_set_user_data (priv->window, NULL);
1371   gdk_window_destroy (priv->window);
1372   priv->window = NULL;
1373 }
1374
1375 void
1376 _gtk_tree_view_column_unset_model (GtkTreeViewColumn *column,
1377                                    GtkTreeModel      *old_model)
1378 {
1379   GtkTreeViewColumnPrivate *priv = column->priv;
1380
1381   if (priv->sort_column_changed_signal)
1382     {
1383       g_signal_handler_disconnect (old_model,
1384                                    priv->sort_column_changed_signal);
1385       priv->sort_column_changed_signal = 0;
1386     }
1387   gtk_tree_view_column_set_sort_indicator (column, FALSE);
1388 }
1389
1390 void
1391 _gtk_tree_view_column_set_tree_view (GtkTreeViewColumn *column,
1392                                      GtkTreeView       *tree_view)
1393 {
1394   GtkTreeViewColumnPrivate *priv = column->priv;
1395
1396   g_assert (priv->tree_view == NULL);
1397
1398   priv->tree_view = GTK_WIDGET (tree_view);
1399   gtk_tree_view_column_create_button (column);
1400
1401   priv->property_changed_signal =
1402     g_signal_connect_swapped (tree_view,
1403                               "notify::model",
1404                               G_CALLBACK (gtk_tree_view_column_setup_sort_column_id_callback),
1405                               column);
1406
1407   gtk_tree_view_column_setup_sort_column_id_callback (column);
1408 }
1409
1410 void
1411 _gtk_tree_view_column_unset_tree_view (GtkTreeViewColumn *column)
1412 {
1413   GtkTreeViewColumnPrivate *priv = column->priv;
1414
1415   if (priv->tree_view && priv->button)
1416     {
1417       gtk_container_remove (GTK_CONTAINER (priv->tree_view), priv->button);
1418     }
1419   if (priv->property_changed_signal)
1420     {
1421       g_signal_handler_disconnect (priv->tree_view, priv->property_changed_signal);
1422       priv->property_changed_signal = 0;
1423     }
1424
1425   if (priv->sort_column_changed_signal)
1426     {
1427       g_signal_handler_disconnect (gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view)),
1428                                    priv->sort_column_changed_signal);
1429       priv->sort_column_changed_signal = 0;
1430     }
1431
1432   priv->tree_view = NULL;
1433   priv->button = NULL;
1434 }
1435
1436 gboolean
1437 _gtk_tree_view_column_has_editable_cell (GtkTreeViewColumn *column)
1438 {
1439   GtkTreeViewColumnPrivate *priv = column->priv;
1440   gboolean ret = FALSE;
1441   GList *list, *cells;
1442
1443   cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (priv->cell_area));
1444
1445   for (list = cells; list; list = list->next)
1446     {
1447       GtkCellRenderer *cell = list->data;
1448       GtkCellRendererMode mode;
1449
1450       g_object_get (cell, "mode", &mode, NULL);
1451
1452       if (mode == GTK_CELL_RENDERER_MODE_EDITABLE)
1453         {
1454           ret = TRUE;
1455           break;
1456         }
1457     }
1458
1459   g_list_free (cells);
1460
1461   return ret;
1462 }
1463
1464 /* gets cell being edited */
1465 GtkCellRenderer *
1466 _gtk_tree_view_column_get_edited_cell (GtkTreeViewColumn *column)
1467 {
1468   GtkTreeViewColumnPrivate *priv = column->priv;
1469
1470   return gtk_cell_area_get_edited_cell (priv->cell_area);
1471 }
1472
1473 GtkCellRenderer *
1474 _gtk_tree_view_column_get_cell_at_pos (GtkTreeViewColumn *column,
1475                                        GdkRectangle      *cell_area,
1476                                        GdkRectangle      *background_area,
1477                                        gint               x,
1478                                        gint               y)
1479 {
1480   GtkCellRenderer *match = NULL;
1481   GtkTreeViewColumnPrivate *priv = column->priv;
1482
1483   /* If (x, y) is outside of the background area, immediately return */
1484   if (x < background_area->x ||
1485       x > background_area->x + background_area->width ||
1486       y < background_area->y ||
1487       y > background_area->y + background_area->height)
1488     return NULL;
1489
1490   /* If (x, y) is inside the background area, clamp it to the cell_area
1491    * so that a cell is still returned.  The main reason for doing this
1492    * (on the x axis) is for handling clicks in the indentation area
1493    * (either at the left or right depending on RTL setting).  Another
1494    * reason is for handling clicks on the area where the focus rectangle
1495    * is drawn (this is outside of cell area), this manifests itself
1496    * mainly when a large setting is used for focus-line-width.
1497    */
1498   if (x < cell_area->x)
1499     x = cell_area->x;
1500   else if (x > cell_area->x + cell_area->width)
1501     x = cell_area->x + cell_area->width;
1502
1503   if (y < cell_area->y)
1504     y = cell_area->y;
1505   else if (y > cell_area->y + cell_area->height)
1506     y = cell_area->y + cell_area->height;
1507
1508   match = gtk_cell_area_get_cell_at_position (priv->cell_area,
1509                                               priv->cell_area_context,
1510                                               priv->tree_view,
1511                                               cell_area,
1512                                               x, y,
1513                                               NULL);
1514
1515   return match;
1516 }
1517
1518 /* Public Functions */
1519
1520
1521 /**
1522  * gtk_tree_view_column_new:
1523  *
1524  * Creates a new #GtkTreeViewColumn.
1525  *
1526  * Return value: A newly created #GtkTreeViewColumn.
1527  **/
1528 GtkTreeViewColumn *
1529 gtk_tree_view_column_new (void)
1530 {
1531   GtkTreeViewColumn *tree_column;
1532
1533   tree_column = g_object_new (GTK_TYPE_TREE_VIEW_COLUMN, NULL);
1534
1535   return tree_column;
1536 }
1537
1538 /**
1539  * gtk_tree_view_column_new_with_area:
1540  * @area: the #GtkCellArea that the newly created column should use to layout cells.
1541  *
1542  * Creates a new #GtkTreeViewColumn using @area to render it's cells.
1543  *
1544  * Return value: A newly created #GtkTreeViewColumn.
1545  *
1546  * Since: 3.0
1547  */
1548 GtkTreeViewColumn *
1549 gtk_tree_view_column_new_with_area (GtkCellArea *area)
1550 {
1551   GtkTreeViewColumn *tree_column;
1552
1553   tree_column = g_object_new (GTK_TYPE_TREE_VIEW_COLUMN, "cell-area", area, NULL);
1554
1555   return tree_column;
1556 }
1557
1558
1559 /**
1560  * gtk_tree_view_column_new_with_attributes:
1561  * @title: The title to set the header to.
1562  * @cell: The #GtkCellRenderer.
1563  * @Varargs: A %NULL-terminated list of attributes.
1564  *
1565  * Creates a new #GtkTreeViewColumn with a number of default values.  This is
1566  * equivalent to calling gtk_tree_view_column_set_title(),
1567  * gtk_tree_view_column_pack_start(), and
1568  * gtk_tree_view_column_set_attributes() on the newly created #GtkTreeViewColumn.
1569  *
1570  * Here's a simple example:
1571  * |[
1572  *  enum { TEXT_COLUMN, COLOR_COLUMN, N_COLUMNS };
1573  *  ...
1574  *  {
1575  *    GtkTreeViewColumn *column;
1576  *    GtkCellRenderer   *renderer = gtk_cell_renderer_text_new ();
1577  *
1578  *    column = gtk_tree_view_column_new_with_attributes ("Title",
1579  *                                                       renderer,
1580  *                                                       "text", TEXT_COLUMN,
1581  *                                                       "foreground", COLOR_COLUMN,
1582  *                                                       NULL);
1583  *  }
1584  * ]|
1585  *
1586  * Return value: A newly created #GtkTreeViewColumn.
1587  **/
1588 GtkTreeViewColumn *
1589 gtk_tree_view_column_new_with_attributes (const gchar     *title,
1590                                           GtkCellRenderer *cell,
1591                                           ...)
1592 {
1593   GtkTreeViewColumn *retval;
1594   va_list args;
1595
1596   retval = gtk_tree_view_column_new ();
1597
1598   gtk_tree_view_column_set_title (retval, title);
1599   gtk_tree_view_column_pack_start (retval, cell, TRUE);
1600
1601   va_start (args, cell);
1602   gtk_tree_view_column_set_attributesv (retval, cell, args);
1603   va_end (args);
1604
1605   return retval;
1606 }
1607
1608 /**
1609  * gtk_tree_view_column_pack_start:
1610  * @tree_column: A #GtkTreeViewColumn.
1611  * @cell: The #GtkCellRenderer.
1612  * @expand: %TRUE if @cell is to be given extra space allocated to @tree_column.
1613  *
1614  * Packs the @cell into the beginning of the column. If @expand is %FALSE, then
1615  * the @cell is allocated no more space than it needs. Any unused space is divided
1616  * evenly between cells for which @expand is %TRUE.
1617  **/
1618 void
1619 gtk_tree_view_column_pack_start (GtkTreeViewColumn *tree_column,
1620                                  GtkCellRenderer   *cell,
1621                                  gboolean           expand)
1622 {
1623   gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (tree_column), cell, expand);
1624 }
1625
1626 /**
1627  * gtk_tree_view_column_pack_end:
1628  * @tree_column: A #GtkTreeViewColumn.
1629  * @cell: The #GtkCellRenderer.
1630  * @expand: %TRUE if @cell is to be given extra space allocated to @tree_column.
1631  *
1632  * Adds the @cell to end of the column. If @expand is %FALSE, then the @cell
1633  * is allocated no more space than it needs. Any unused space is divided
1634  * evenly between cells for which @expand is %TRUE.
1635  **/
1636 void
1637 gtk_tree_view_column_pack_end (GtkTreeViewColumn  *tree_column,
1638                                GtkCellRenderer    *cell,
1639                                gboolean            expand)
1640 {
1641   gtk_cell_layout_pack_end (GTK_CELL_LAYOUT (tree_column), cell, expand);
1642 }
1643
1644 /**
1645  * gtk_tree_view_column_clear:
1646  * @tree_column: A #GtkTreeViewColumn
1647  *
1648  * Unsets all the mappings on all renderers on the @tree_column.
1649  **/
1650 void
1651 gtk_tree_view_column_clear (GtkTreeViewColumn *tree_column)
1652 {
1653   gtk_cell_layout_clear (GTK_CELL_LAYOUT (tree_column));
1654 }
1655
1656 /**
1657  * gtk_tree_view_column_add_attribute:
1658  * @tree_column: A #GtkTreeViewColumn.
1659  * @cell_renderer: the #GtkCellRenderer to set attributes on
1660  * @attribute: An attribute on the renderer
1661  * @column: The column position on the model to get the attribute from.
1662  *
1663  * Adds an attribute mapping to the list in @tree_column.  The @column is the
1664  * column of the model to get a value from, and the @attribute is the
1665  * parameter on @cell_renderer to be set from the value. So for example
1666  * if column 2 of the model contains strings, you could have the
1667  * "text" attribute of a #GtkCellRendererText get its values from
1668  * column 2.
1669  **/
1670 void
1671 gtk_tree_view_column_add_attribute (GtkTreeViewColumn *tree_column,
1672                                     GtkCellRenderer   *cell_renderer,
1673                                     const gchar       *attribute,
1674                                     gint               column)
1675 {
1676   gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (tree_column),
1677                                  cell_renderer, attribute, column);
1678 }
1679
1680 static void
1681 gtk_tree_view_column_set_attributesv (GtkTreeViewColumn *tree_column,
1682                                       GtkCellRenderer   *cell_renderer,
1683                                       va_list            args)
1684 {
1685   GtkTreeViewColumnPrivate *priv = tree_column->priv;
1686   gchar *attribute;
1687   gint column;
1688
1689   attribute = va_arg (args, gchar *);
1690
1691   gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (priv->cell_area),
1692                                     cell_renderer);
1693
1694   while (attribute != NULL)
1695     {
1696       column = va_arg (args, gint);
1697       gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (priv->cell_area),
1698                                      cell_renderer, attribute, column);
1699       attribute = va_arg (args, gchar *);
1700     }
1701 }
1702
1703 /**
1704  * gtk_tree_view_column_set_attributes:
1705  * @tree_column: A #GtkTreeViewColumn.
1706  * @cell_renderer: the #GtkCellRenderer we're setting the attributes of
1707  * @Varargs: A %NULL-terminated list of attributes.
1708  *
1709  * Sets the attributes in the list as the attributes of @tree_column.
1710  * The attributes should be in attribute/column order, as in
1711  * gtk_tree_view_column_add_attribute(). All existing attributes
1712  * are removed, and replaced with the new attributes.
1713  **/
1714 void
1715 gtk_tree_view_column_set_attributes (GtkTreeViewColumn *tree_column,
1716                                      GtkCellRenderer   *cell_renderer,
1717                                      ...)
1718 {
1719   va_list args;
1720
1721   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1722   g_return_if_fail (GTK_IS_CELL_RENDERER (cell_renderer));
1723
1724   va_start (args, cell_renderer);
1725   gtk_tree_view_column_set_attributesv (tree_column, cell_renderer, args);
1726   va_end (args);
1727 }
1728
1729
1730 /**
1731  * gtk_tree_view_column_set_cell_data_func:
1732  * @tree_column: A #GtkTreeViewColumn
1733  * @cell_renderer: A #GtkCellRenderer
1734  * @func: The #GtkTreeViewColumnFunc to use.
1735  * @func_data: The user data for @func.
1736  * @destroy: The destroy notification for @func_data
1737  *
1738  * Sets the #GtkTreeViewColumnFunc to use for the column.  This
1739  * function is used instead of the standard attributes mapping for
1740  * setting the column value, and should set the value of @tree_column's
1741  * cell renderer as appropriate.  @func may be %NULL to remove an
1742  * older one.
1743  **/
1744 void
1745 gtk_tree_view_column_set_cell_data_func (GtkTreeViewColumn   *tree_column,
1746                                          GtkCellRenderer     *cell_renderer,
1747                                          GtkTreeCellDataFunc  func,
1748                                          gpointer             func_data,
1749                                          GDestroyNotify       destroy)
1750 {
1751   gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (tree_column),
1752                                       cell_renderer,
1753                                       (GtkCellLayoutDataFunc)func,
1754                                       func_data, destroy);
1755 }
1756
1757
1758 /**
1759  * gtk_tree_view_column_clear_attributes:
1760  * @tree_column: a #GtkTreeViewColumn
1761  * @cell_renderer: a #GtkCellRenderer to clear the attribute mapping on.
1762  *
1763  * Clears all existing attributes previously set with
1764  * gtk_tree_view_column_set_attributes().
1765  **/
1766 void
1767 gtk_tree_view_column_clear_attributes (GtkTreeViewColumn *tree_column,
1768                                        GtkCellRenderer   *cell_renderer)
1769 {
1770   gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (tree_column),
1771                                     cell_renderer);
1772 }
1773
1774 /**
1775  * gtk_tree_view_column_set_spacing:
1776  * @tree_column: A #GtkTreeViewColumn.
1777  * @spacing: distance between cell renderers in pixels.
1778  *
1779  * Sets the spacing field of @tree_column, which is the number of pixels to
1780  * place between cell renderers packed into it.
1781  **/
1782 void
1783 gtk_tree_view_column_set_spacing (GtkTreeViewColumn *tree_column,
1784                                   gint               spacing)
1785 {
1786   GtkTreeViewColumnPrivate *priv;
1787
1788   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1789   g_return_if_fail (spacing >= 0);
1790
1791   priv = tree_column->priv;
1792
1793   gtk_cell_area_box_set_spacing (GTK_CELL_AREA_BOX (priv->cell_area),
1794                                  spacing);
1795   if (priv->tree_view)
1796     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
1797 }
1798
1799 /**
1800  * gtk_tree_view_column_get_spacing:
1801  * @tree_column: A #GtkTreeViewColumn.
1802  *
1803  * Returns the spacing of @tree_column.
1804  *
1805  * Return value: the spacing of @tree_column.
1806  **/
1807 gint
1808 gtk_tree_view_column_get_spacing (GtkTreeViewColumn *tree_column)
1809 {
1810   GtkTreeViewColumnPrivate *priv;
1811
1812   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
1813
1814   priv = tree_column->priv;
1815
1816   return gtk_cell_area_box_get_spacing (GTK_CELL_AREA_BOX (priv->cell_area));
1817 }
1818
1819 /* Options for manipulating the columns */
1820
1821 /**
1822  * gtk_tree_view_column_set_visible:
1823  * @tree_column: A #GtkTreeViewColumn.
1824  * @visible: %TRUE if the @tree_column is visible.
1825  *
1826  * Sets the visibility of @tree_column.
1827  **/
1828 void
1829 gtk_tree_view_column_set_visible (GtkTreeViewColumn *tree_column,
1830                                   gboolean           visible)
1831 {
1832   GtkTreeViewColumnPrivate *priv;
1833
1834   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1835
1836   priv    = tree_column->priv;
1837   visible = !! visible;
1838
1839   if (priv->visible == visible)
1840     return;
1841
1842   priv->visible = visible;
1843
1844   if (priv->visible)
1845     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
1846
1847   gtk_tree_view_column_update_button (tree_column);
1848   g_object_notify (G_OBJECT (tree_column), "visible");
1849 }
1850
1851 /**
1852  * gtk_tree_view_column_get_visible:
1853  * @tree_column: A #GtkTreeViewColumn.
1854  *
1855  * Returns %TRUE if @tree_column is visible.
1856  *
1857  * Return value: whether the column is visible or not.  If it is visible, then
1858  * the tree will show the column.
1859  **/
1860 gboolean
1861 gtk_tree_view_column_get_visible (GtkTreeViewColumn *tree_column)
1862 {
1863   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
1864
1865   return tree_column->priv->visible;
1866 }
1867
1868 /**
1869  * gtk_tree_view_column_set_resizable:
1870  * @tree_column: A #GtkTreeViewColumn
1871  * @resizable: %TRUE, if the column can be resized
1872  *
1873  * If @resizable is %TRUE, then the user can explicitly resize the column by
1874  * grabbing the outer edge of the column button.  If resizable is %TRUE and
1875  * sizing mode of the column is #GTK_TREE_VIEW_COLUMN_AUTOSIZE, then the sizing
1876  * mode is changed to #GTK_TREE_VIEW_COLUMN_GROW_ONLY.
1877  **/
1878 void
1879 gtk_tree_view_column_set_resizable (GtkTreeViewColumn *tree_column,
1880                                     gboolean           resizable)
1881 {
1882   GtkTreeViewColumnPrivate *priv;
1883
1884   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1885
1886   priv      = tree_column->priv;
1887   resizable = !! resizable;
1888
1889   if (priv->resizable == resizable)
1890     return;
1891
1892   priv->resizable = resizable;
1893
1894   if (resizable && priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
1895     gtk_tree_view_column_set_sizing (tree_column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
1896
1897   gtk_tree_view_column_update_button (tree_column);
1898
1899   g_object_notify (G_OBJECT (tree_column), "resizable");
1900 }
1901
1902 /**
1903  * gtk_tree_view_column_get_resizable:
1904  * @tree_column: A #GtkTreeViewColumn
1905  *
1906  * Returns %TRUE if the @tree_column can be resized by the end user.
1907  *
1908  * Return value: %TRUE, if the @tree_column can be resized.
1909  **/
1910 gboolean
1911 gtk_tree_view_column_get_resizable (GtkTreeViewColumn *tree_column)
1912 {
1913   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
1914
1915   return tree_column->priv->resizable;
1916 }
1917
1918
1919 /**
1920  * gtk_tree_view_column_set_sizing:
1921  * @tree_column: A #GtkTreeViewColumn.
1922  * @type: The #GtkTreeViewColumnSizing.
1923  *
1924  * Sets the growth behavior of @tree_column to @type.
1925  **/
1926 void
1927 gtk_tree_view_column_set_sizing (GtkTreeViewColumn       *tree_column,
1928                                  GtkTreeViewColumnSizing  type)
1929 {
1930   GtkTreeViewColumnPrivate *priv;
1931
1932   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1933
1934   priv      = tree_column->priv;
1935
1936   if (type == priv->column_type)
1937     return;
1938
1939   if (type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
1940     gtk_tree_view_column_set_resizable (tree_column, FALSE);
1941
1942   priv->column_type = type;
1943
1944   gtk_tree_view_column_update_button (tree_column);
1945
1946   g_object_notify (G_OBJECT (tree_column), "sizing");
1947 }
1948
1949 /**
1950  * gtk_tree_view_column_get_sizing:
1951  * @tree_column: A #GtkTreeViewColumn.
1952  *
1953  * Returns the current type of @tree_column.
1954  *
1955  * Return value: The type of @tree_column.
1956  **/
1957 GtkTreeViewColumnSizing
1958 gtk_tree_view_column_get_sizing (GtkTreeViewColumn *tree_column)
1959 {
1960   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
1961
1962   return tree_column->priv->column_type;
1963 }
1964
1965 /**
1966  * gtk_tree_view_column_get_width:
1967  * @tree_column: A #GtkTreeViewColumn.
1968  *
1969  * Returns the current size of @tree_column in pixels.
1970  *
1971  * Return value: The current width of @tree_column.
1972  **/
1973 gint
1974 gtk_tree_view_column_get_width (GtkTreeViewColumn *tree_column)
1975 {
1976   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
1977
1978   return tree_column->priv->width;
1979 }
1980
1981 gint
1982 _gtk_tree_view_column_request_width (GtkTreeViewColumn *tree_column)
1983 {
1984   GtkTreeViewColumnPrivate *priv;
1985   gint real_requested_width;
1986
1987   priv = tree_column->priv;
1988
1989   if (priv->use_resized_width)
1990     {
1991       real_requested_width = priv->resized_width;
1992     }
1993   else if (priv->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
1994     {
1995       real_requested_width = priv->fixed_width;
1996     }
1997   else if (gtk_tree_view_get_headers_visible (GTK_TREE_VIEW (priv->tree_view)))
1998     {
1999       gint button_request;
2000       gint requested_width;
2001
2002       gtk_cell_area_context_get_preferred_width (priv->cell_area_context, &requested_width, NULL);
2003       requested_width += priv->padding;
2004
2005       gtk_widget_get_preferred_width (priv->button, &button_request, NULL);
2006       real_requested_width = MAX (requested_width, button_request);
2007     }
2008   else
2009     {
2010       gint requested_width;
2011
2012       gtk_cell_area_context_get_preferred_width (priv->cell_area_context, &requested_width, NULL);
2013       requested_width += priv->padding;
2014
2015       real_requested_width = requested_width;
2016       if (real_requested_width < 0)
2017         real_requested_width = 0;
2018     }
2019
2020   if (priv->min_width != -1)
2021     real_requested_width = MAX (real_requested_width, priv->min_width);
2022
2023   if (priv->max_width != -1)
2024     real_requested_width = MIN (real_requested_width, priv->max_width);
2025
2026   return real_requested_width;
2027 }
2028
2029 void
2030 _gtk_tree_view_column_allocate (GtkTreeViewColumn *tree_column,
2031                                 int                x_offset,
2032                                 int                width)
2033 {
2034   GtkTreeViewColumnPrivate *priv;
2035   GtkAllocation             allocation;
2036   gboolean                  rtl;
2037
2038   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2039
2040   priv = tree_column->priv;
2041
2042   priv->width = width;
2043
2044   gtk_cell_area_context_allocate (priv->cell_area_context, priv->width - priv->padding, -1);
2045
2046   allocation.x      = x_offset;
2047   allocation.y      = 0;
2048   allocation.width  = width;
2049   allocation.height = _gtk_tree_view_get_header_height (GTK_TREE_VIEW (priv->tree_view));
2050
2051   gtk_widget_size_allocate (priv->button, &allocation);
2052
2053   if (priv->window)
2054     {
2055       rtl = (gtk_widget_get_direction (priv->tree_view) == GTK_TEXT_DIR_RTL);
2056       gdk_window_move_resize (priv->window,
2057                               allocation.x + (rtl ? 0 : allocation.width) - TREE_VIEW_DRAG_WIDTH/2,
2058                               allocation.y,
2059                               TREE_VIEW_DRAG_WIDTH, allocation.height);
2060     }
2061
2062   g_object_notify (G_OBJECT (tree_column), "width");
2063 }
2064
2065 /**
2066  * gtk_tree_view_column_set_fixed_width:
2067  * @tree_column: A #GtkTreeViewColumn.
2068  * @fixed_width: The size to set @tree_column to. Must be greater than 0.
2069  *
2070  * Sets the size of the column in pixels.  This is meaningful only if the sizing
2071  * type is #GTK_TREE_VIEW_COLUMN_FIXED.  The size of the column is clamped to
2072  * the min/max width for the column.  Please note that the min/max width of the
2073  * column doesn't actually affect the "fixed_width" property of the widget, just
2074  * the actual size when displayed.
2075  **/
2076 void
2077 gtk_tree_view_column_set_fixed_width (GtkTreeViewColumn *tree_column,
2078                                       gint               fixed_width)
2079 {
2080   GtkTreeViewColumnPrivate *priv;
2081
2082   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2083   g_return_if_fail (fixed_width > 0);
2084
2085   priv = tree_column->priv;
2086
2087   priv->fixed_width = fixed_width;
2088   priv->use_resized_width = FALSE;
2089
2090   if (priv->tree_view &&
2091       gtk_widget_get_realized (priv->tree_view) &&
2092       priv->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2093     {
2094       gtk_widget_queue_resize (priv->tree_view);
2095     }
2096
2097   g_object_notify (G_OBJECT (tree_column), "fixed-width");
2098 }
2099
2100 /**
2101  * gtk_tree_view_column_get_fixed_width:
2102  * @tree_column: a #GtkTreeViewColumn
2103  *
2104  * Gets the fixed width of the column.  This value is only meaning may not be
2105  * the actual width of the column on the screen, just what is requested.
2106  *
2107  * Return value: the fixed width of the column
2108  **/
2109 gint
2110 gtk_tree_view_column_get_fixed_width (GtkTreeViewColumn *tree_column)
2111 {
2112   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
2113
2114   return tree_column->priv->fixed_width;
2115 }
2116
2117 /**
2118  * gtk_tree_view_column_set_min_width:
2119  * @tree_column: A #GtkTreeViewColumn.
2120  * @min_width: The minimum width of the column in pixels, or -1.
2121  *
2122  * Sets the minimum width of the @tree_column.  If @min_width is -1, then the
2123  * minimum width is unset.
2124  **/
2125 void
2126 gtk_tree_view_column_set_min_width (GtkTreeViewColumn *tree_column,
2127                                     gint               min_width)
2128 {
2129   GtkTreeViewColumnPrivate *priv;
2130
2131   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2132   g_return_if_fail (min_width >= -1);
2133
2134   priv = tree_column->priv;
2135
2136   if (min_width == priv->min_width)
2137     return;
2138
2139   if (priv->visible &&
2140       priv->tree_view != NULL &&
2141       gtk_widget_get_realized (priv->tree_view))
2142     {
2143       if (min_width > priv->width)
2144         gtk_widget_queue_resize (priv->tree_view);
2145     }
2146
2147   priv->min_width = min_width;
2148   g_object_freeze_notify (G_OBJECT (tree_column));
2149   if (priv->max_width != -1 && priv->max_width < min_width)
2150     {
2151       priv->max_width = min_width;
2152       g_object_notify (G_OBJECT (tree_column), "max-width");
2153     }
2154   g_object_notify (G_OBJECT (tree_column), "min-width");
2155   g_object_thaw_notify (G_OBJECT (tree_column));
2156
2157   if (priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2158     _gtk_tree_view_column_autosize (GTK_TREE_VIEW (priv->tree_view),
2159                                     tree_column);
2160 }
2161
2162 /**
2163  * gtk_tree_view_column_get_min_width:
2164  * @tree_column: A #GtkTreeViewColumn.
2165  *
2166  * Returns the minimum width in pixels of the @tree_column, or -1 if no minimum
2167  * width is set.
2168  *
2169  * Return value: The minimum width of the @tree_column.
2170  **/
2171 gint
2172 gtk_tree_view_column_get_min_width (GtkTreeViewColumn *tree_column)
2173 {
2174   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), -1);
2175
2176   return tree_column->priv->min_width;
2177 }
2178
2179 /**
2180  * gtk_tree_view_column_set_max_width:
2181  * @tree_column: A #GtkTreeViewColumn.
2182  * @max_width: The maximum width of the column in pixels, or -1.
2183  *
2184  * Sets the maximum width of the @tree_column.  If @max_width is -1, then the
2185  * maximum width is unset.  Note, the column can actually be wider than max
2186  * width if it's the last column in a view.  In this case, the column expands to
2187  * fill any extra space.
2188  **/
2189 void
2190 gtk_tree_view_column_set_max_width (GtkTreeViewColumn *tree_column,
2191                                     gint               max_width)
2192 {
2193   GtkTreeViewColumnPrivate *priv;
2194
2195   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2196   g_return_if_fail (max_width >= -1);
2197
2198   priv = tree_column->priv;
2199
2200   if (max_width == priv->max_width)
2201     return;
2202
2203   if (priv->visible &&
2204       priv->tree_view != NULL &&
2205       gtk_widget_get_realized (priv->tree_view))
2206     {
2207       if (max_width != -1 && max_width < priv->width)
2208         gtk_widget_queue_resize (priv->tree_view);
2209     }
2210
2211   priv->max_width = max_width;
2212   g_object_freeze_notify (G_OBJECT (tree_column));
2213   if (max_width != -1 && max_width < priv->min_width)
2214     {
2215       priv->min_width = max_width;
2216       g_object_notify (G_OBJECT (tree_column), "min-width");
2217     }
2218   g_object_notify (G_OBJECT (tree_column), "max-width");
2219   g_object_thaw_notify (G_OBJECT (tree_column));
2220
2221   if (priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2222     _gtk_tree_view_column_autosize (GTK_TREE_VIEW (priv->tree_view),
2223                                     tree_column);
2224 }
2225
2226 /**
2227  * gtk_tree_view_column_get_max_width:
2228  * @tree_column: A #GtkTreeViewColumn.
2229  *
2230  * Returns the maximum width in pixels of the @tree_column, or -1 if no maximum
2231  * width is set.
2232  *
2233  * Return value: The maximum width of the @tree_column.
2234  **/
2235 gint
2236 gtk_tree_view_column_get_max_width (GtkTreeViewColumn *tree_column)
2237 {
2238   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), -1);
2239
2240   return tree_column->priv->max_width;
2241 }
2242
2243 /**
2244  * gtk_tree_view_column_clicked:
2245  * @tree_column: a #GtkTreeViewColumn
2246  *
2247  * Emits the "clicked" signal on the column.  This function will only work if
2248  * @tree_column is clickable.
2249  **/
2250 void
2251 gtk_tree_view_column_clicked (GtkTreeViewColumn *tree_column)
2252 {
2253   GtkTreeViewColumnPrivate *priv;
2254
2255   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2256
2257   priv = tree_column->priv;
2258
2259   if (priv->visible &&
2260       priv->button &&
2261       priv->clickable)
2262     gtk_button_clicked (GTK_BUTTON (priv->button));
2263 }
2264
2265 /**
2266  * gtk_tree_view_column_set_title:
2267  * @tree_column: A #GtkTreeViewColumn.
2268  * @title: The title of the @tree_column.
2269  *
2270  * Sets the title of the @tree_column.  If a custom widget has been set, then
2271  * this value is ignored.
2272  **/
2273 void
2274 gtk_tree_view_column_set_title (GtkTreeViewColumn *tree_column,
2275                                 const gchar       *title)
2276 {
2277   GtkTreeViewColumnPrivate *priv;
2278   gchar                    *new_title;
2279
2280   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2281
2282   priv = tree_column->priv;
2283
2284   new_title = g_strdup (title);
2285   g_free (priv->title);
2286   priv->title = new_title;
2287
2288   gtk_tree_view_column_update_button (tree_column);
2289   g_object_notify (G_OBJECT (tree_column), "title");
2290 }
2291
2292 /**
2293  * gtk_tree_view_column_get_title:
2294  * @tree_column: A #GtkTreeViewColumn.
2295  *
2296  * Returns the title of the widget.
2297  *
2298  * Return value: the title of the column. This string should not be
2299  * modified or freed.
2300  **/
2301 G_CONST_RETURN gchar *
2302 gtk_tree_view_column_get_title (GtkTreeViewColumn *tree_column)
2303 {
2304   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
2305
2306   return tree_column->priv->title;
2307 }
2308
2309 /**
2310  * gtk_tree_view_column_set_expand:
2311  * @tree_column: A #GtkTreeViewColumn
2312  * @expand: %TRUE if the column should take available extra space, %FALSE if not
2313  *
2314  * Sets the column to take available extra space.  This space is shared equally
2315  * amongst all columns that have the expand set to %TRUE.  If no column has this
2316  * option set, then the last column gets all extra space.  By default, every
2317  * column is created with this %FALSE.
2318  *
2319  * Since: 2.4
2320  **/
2321 void
2322 gtk_tree_view_column_set_expand (GtkTreeViewColumn *tree_column,
2323                                  gboolean           expand)
2324 {
2325   GtkTreeViewColumnPrivate *priv;
2326
2327   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2328
2329   priv = tree_column->priv;
2330
2331   expand = expand?TRUE:FALSE;
2332   if (priv->expand == expand)
2333     return;
2334   priv->expand = expand;
2335
2336   if (priv->visible &&
2337       priv->tree_view != NULL &&
2338       gtk_widget_get_realized (priv->tree_view))
2339     {
2340       /* We want to continue using the original width of the
2341        * column that includes additional space added by the user
2342        * resizing the columns and possibly extra (expanded) space, which
2343        * are not included in the resized width.
2344        */
2345       priv->use_resized_width = FALSE;
2346
2347       gtk_widget_queue_resize (priv->tree_view);
2348     }
2349
2350   g_object_notify (G_OBJECT (tree_column), "expand");
2351 }
2352
2353 /**
2354  * gtk_tree_view_column_get_expand:
2355  * @tree_column: a #GtkTreeViewColumn
2356  *
2357  * Return %TRUE if the column expands to take any available space.
2358  *
2359  * Return value: %TRUE, if the column expands
2360  *
2361  * Since: 2.4
2362  **/
2363 gboolean
2364 gtk_tree_view_column_get_expand (GtkTreeViewColumn *tree_column)
2365 {
2366   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2367
2368   return tree_column->priv->expand;
2369 }
2370
2371 /**
2372  * gtk_tree_view_column_set_clickable:
2373  * @tree_column: A #GtkTreeViewColumn.
2374  * @clickable: %TRUE if the header is active.
2375  *
2376  * Sets the header to be active if @active is %TRUE.  When the header is active,
2377  * then it can take keyboard focus, and can be clicked.
2378  **/
2379 void
2380 gtk_tree_view_column_set_clickable (GtkTreeViewColumn *tree_column,
2381                                     gboolean           clickable)
2382 {
2383   GtkTreeViewColumnPrivate *priv;
2384
2385   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2386
2387   priv = tree_column->priv;
2388
2389   clickable = !! clickable;
2390   if (priv->clickable == clickable)
2391     return;
2392
2393   priv->clickable = clickable;
2394   gtk_tree_view_column_update_button (tree_column);
2395   g_object_notify (G_OBJECT (tree_column), "clickable");
2396 }
2397
2398 /**
2399  * gtk_tree_view_column_get_clickable:
2400  * @tree_column: a #GtkTreeViewColumn
2401  *
2402  * Returns %TRUE if the user can click on the header for the column.
2403  *
2404  * Return value: %TRUE if user can click the column header.
2405  **/
2406 gboolean
2407 gtk_tree_view_column_get_clickable (GtkTreeViewColumn *tree_column)
2408 {
2409   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2410
2411   return tree_column->priv->clickable;
2412 }
2413
2414 /**
2415  * gtk_tree_view_column_set_widget:
2416  * @tree_column: A #GtkTreeViewColumn.
2417  * @widget: (allow-none): A child #GtkWidget, or %NULL.
2418  *
2419  * Sets the widget in the header to be @widget.  If widget is %NULL, then the
2420  * header button is set with a #GtkLabel set to the title of @tree_column.
2421  **/
2422 void
2423 gtk_tree_view_column_set_widget (GtkTreeViewColumn *tree_column,
2424                                  GtkWidget         *widget)
2425 {
2426   GtkTreeViewColumnPrivate *priv;
2427
2428   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2429   g_return_if_fail (widget == NULL || GTK_IS_WIDGET (widget));
2430
2431   priv = tree_column->priv;
2432
2433   if (widget)
2434     g_object_ref_sink (widget);
2435
2436   if (priv->child)
2437     g_object_unref (priv->child);
2438
2439   priv->child = widget;
2440   gtk_tree_view_column_update_button (tree_column);
2441   g_object_notify (G_OBJECT (tree_column), "widget");
2442 }
2443
2444 /**
2445  * gtk_tree_view_column_get_widget:
2446  * @tree_column: A #GtkTreeViewColumn.
2447  *
2448  * Returns the #GtkWidget in the button on the column header.
2449  * If a custom widget has not been set then %NULL is returned.
2450  *
2451  * Return value: (transfer none): The #GtkWidget in the column
2452  *     header, or %NULL
2453  **/
2454 GtkWidget *
2455 gtk_tree_view_column_get_widget (GtkTreeViewColumn *tree_column)
2456 {
2457   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
2458
2459   return tree_column->priv->child;
2460 }
2461
2462 /**
2463  * gtk_tree_view_column_set_alignment:
2464  * @tree_column: A #GtkTreeViewColumn.
2465  * @xalign: The alignment, which is between [0.0 and 1.0] inclusive.
2466  *
2467  * Sets the alignment of the title or custom widget inside the column header.
2468  * The alignment determines its location inside the button -- 0.0 for left, 0.5
2469  * for center, 1.0 for right.
2470  **/
2471 void
2472 gtk_tree_view_column_set_alignment (GtkTreeViewColumn *tree_column,
2473                                     gfloat             xalign)
2474 {
2475   GtkTreeViewColumnPrivate *priv;
2476
2477   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2478
2479   priv = tree_column->priv;
2480
2481   xalign = CLAMP (xalign, 0.0, 1.0);
2482
2483   if (priv->xalign == xalign)
2484     return;
2485
2486   priv->xalign = xalign;
2487   gtk_tree_view_column_update_button (tree_column);
2488   g_object_notify (G_OBJECT (tree_column), "alignment");
2489 }
2490
2491 /**
2492  * gtk_tree_view_column_get_alignment:
2493  * @tree_column: A #GtkTreeViewColumn.
2494  *
2495  * Returns the current x alignment of @tree_column.  This value can range
2496  * between 0.0 and 1.0.
2497  *
2498  * Return value: The current alignent of @tree_column.
2499  **/
2500 gfloat
2501 gtk_tree_view_column_get_alignment (GtkTreeViewColumn *tree_column)
2502 {
2503   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0.5);
2504
2505   return tree_column->priv->xalign;
2506 }
2507
2508 /**
2509  * gtk_tree_view_column_set_reorderable:
2510  * @tree_column: A #GtkTreeViewColumn
2511  * @reorderable: %TRUE, if the column can be reordered.
2512  *
2513  * If @reorderable is %TRUE, then the column can be reordered by the end user
2514  * dragging the header.
2515  **/
2516 void
2517 gtk_tree_view_column_set_reorderable (GtkTreeViewColumn *tree_column,
2518                                       gboolean           reorderable)
2519 {
2520   GtkTreeViewColumnPrivate *priv;
2521
2522   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2523
2524   priv = tree_column->priv;
2525
2526   /*  if (reorderable)
2527       gtk_tree_view_column_set_clickable (tree_column, TRUE);*/
2528
2529   if (priv->reorderable == (reorderable?TRUE:FALSE))
2530     return;
2531
2532   priv->reorderable = (reorderable?TRUE:FALSE);
2533   gtk_tree_view_column_update_button (tree_column);
2534   g_object_notify (G_OBJECT (tree_column), "reorderable");
2535 }
2536
2537 /**
2538  * gtk_tree_view_column_get_reorderable:
2539  * @tree_column: A #GtkTreeViewColumn
2540  *
2541  * Returns %TRUE if the @tree_column can be reordered by the user.
2542  *
2543  * Return value: %TRUE if the @tree_column can be reordered by the user.
2544  **/
2545 gboolean
2546 gtk_tree_view_column_get_reorderable (GtkTreeViewColumn *tree_column)
2547 {
2548   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2549
2550   return tree_column->priv->reorderable;
2551 }
2552
2553
2554 /**
2555  * gtk_tree_view_column_set_sort_column_id:
2556  * @tree_column: a #GtkTreeViewColumn
2557  * @sort_column_id: The @sort_column_id of the model to sort on.
2558  *
2559  * Sets the logical @sort_column_id that this column sorts on when this column
2560  * is selected for sorting.  Doing so makes the column header clickable.
2561  **/
2562 void
2563 gtk_tree_view_column_set_sort_column_id (GtkTreeViewColumn *tree_column,
2564                                          gint               sort_column_id)
2565 {
2566   GtkTreeViewColumnPrivate *priv;
2567
2568   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2569   g_return_if_fail (sort_column_id >= -1);
2570
2571   priv = tree_column->priv;
2572
2573   if (priv->sort_column_id == sort_column_id)
2574     return;
2575
2576   priv->sort_column_id = sort_column_id;
2577
2578   /* Handle unsetting the id */
2579   if (sort_column_id == -1)
2580     {
2581       GtkTreeModel *model = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
2582
2583       if (priv->sort_clicked_signal)
2584         {
2585           g_signal_handler_disconnect (tree_column, priv->sort_clicked_signal);
2586           priv->sort_clicked_signal = 0;
2587         }
2588
2589       if (priv->sort_column_changed_signal)
2590         {
2591           g_signal_handler_disconnect (model, priv->sort_column_changed_signal);
2592           priv->sort_column_changed_signal = 0;
2593         }
2594
2595       gtk_tree_view_column_set_sort_order (tree_column, GTK_SORT_ASCENDING);
2596       gtk_tree_view_column_set_sort_indicator (tree_column, FALSE);
2597       gtk_tree_view_column_set_clickable (tree_column, FALSE);
2598       g_object_notify (G_OBJECT (tree_column), "sort-column-id");
2599       return;
2600     }
2601
2602   gtk_tree_view_column_set_clickable (tree_column, TRUE);
2603
2604   if (! priv->sort_clicked_signal)
2605     priv->sort_clicked_signal = g_signal_connect (tree_column,
2606                                                   "clicked",
2607                                                   G_CALLBACK (gtk_tree_view_column_sort),
2608                                                   NULL);
2609
2610   gtk_tree_view_column_setup_sort_column_id_callback (tree_column);
2611   g_object_notify (G_OBJECT (tree_column), "sort-column-id");
2612 }
2613
2614 /**
2615  * gtk_tree_view_column_get_sort_column_id:
2616  * @tree_column: a #GtkTreeViewColumn
2617  *
2618  * Gets the logical @sort_column_id that the model sorts on when this
2619  * column is selected for sorting.
2620  * See gtk_tree_view_column_set_sort_column_id().
2621  *
2622  * Return value: the current @sort_column_id for this column, or -1 if
2623  *               this column can't be used for sorting.
2624  **/
2625 gint
2626 gtk_tree_view_column_get_sort_column_id (GtkTreeViewColumn *tree_column)
2627 {
2628   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
2629
2630   return tree_column->priv->sort_column_id;
2631 }
2632
2633 /**
2634  * gtk_tree_view_column_set_sort_indicator:
2635  * @tree_column: a #GtkTreeViewColumn
2636  * @setting: %TRUE to display an indicator that the column is sorted
2637  *
2638  * Call this function with a @setting of %TRUE to display an arrow in
2639  * the header button indicating the column is sorted. Call
2640  * gtk_tree_view_column_set_sort_order() to change the direction of
2641  * the arrow.
2642  *
2643  **/
2644 void
2645 gtk_tree_view_column_set_sort_indicator (GtkTreeViewColumn     *tree_column,
2646                                          gboolean               setting)
2647 {
2648   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2649
2650   setting = setting != FALSE;
2651
2652   if (setting == tree_column->priv->show_sort_indicator)
2653     return;
2654
2655   tree_column->priv->show_sort_indicator = setting;
2656   gtk_tree_view_column_update_button (tree_column);
2657   g_object_notify (G_OBJECT (tree_column), "sort-indicator");
2658 }
2659
2660 /**
2661  * gtk_tree_view_column_get_sort_indicator:
2662  * @tree_column: a #GtkTreeViewColumn
2663  *
2664  * Gets the value set by gtk_tree_view_column_set_sort_indicator().
2665  *
2666  * Return value: whether the sort indicator arrow is displayed
2667  **/
2668 gboolean
2669 gtk_tree_view_column_get_sort_indicator  (GtkTreeViewColumn     *tree_column)
2670 {
2671   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2672
2673   return tree_column->priv->show_sort_indicator;
2674 }
2675
2676 /**
2677  * gtk_tree_view_column_set_sort_order:
2678  * @tree_column: a #GtkTreeViewColumn
2679  * @order: sort order that the sort indicator should indicate
2680  *
2681  * Changes the appearance of the sort indicator.
2682  *
2683  * This <emphasis>does not</emphasis> actually sort the model.  Use
2684  * gtk_tree_view_column_set_sort_column_id() if you want automatic sorting
2685  * support.  This function is primarily for custom sorting behavior, and should
2686  * be used in conjunction with gtk_tree_sortable_set_sort_column() to do
2687  * that. For custom models, the mechanism will vary.
2688  *
2689  * The sort indicator changes direction to indicate normal sort or reverse sort.
2690  * Note that you must have the sort indicator enabled to see anything when
2691  * calling this function; see gtk_tree_view_column_set_sort_indicator().
2692  **/
2693 void
2694 gtk_tree_view_column_set_sort_order      (GtkTreeViewColumn     *tree_column,
2695                                           GtkSortType            order)
2696 {
2697   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2698
2699   if (order == tree_column->priv->sort_order)
2700     return;
2701
2702   tree_column->priv->sort_order = order;
2703   gtk_tree_view_column_update_button (tree_column);
2704   g_object_notify (G_OBJECT (tree_column), "sort-order");
2705 }
2706
2707 /**
2708  * gtk_tree_view_column_get_sort_order:
2709  * @tree_column: a #GtkTreeViewColumn
2710  *
2711  * Gets the value set by gtk_tree_view_column_set_sort_order().
2712  *
2713  * Return value: the sort order the sort indicator is indicating
2714  **/
2715 GtkSortType
2716 gtk_tree_view_column_get_sort_order      (GtkTreeViewColumn     *tree_column)
2717 {
2718   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
2719
2720   return tree_column->priv->sort_order;
2721 }
2722
2723 /**
2724  * gtk_tree_view_column_cell_set_cell_data:
2725  * @tree_column: A #GtkTreeViewColumn.
2726  * @tree_model: The #GtkTreeModel to to get the cell renderers attributes from.
2727  * @iter: The #GtkTreeIter to to get the cell renderer's attributes from.
2728  * @is_expander: %TRUE, if the row has children
2729  * @is_expanded: %TRUE, if the row has visible children
2730  *
2731  * Sets the cell renderer based on the @tree_model and @iter.  That is, for
2732  * every attribute mapping in @tree_column, it will get a value from the set
2733  * column on the @iter, and use that value to set the attribute on the cell
2734  * renderer.  This is used primarily by the #GtkTreeView.
2735  **/
2736 void
2737 gtk_tree_view_column_cell_set_cell_data (GtkTreeViewColumn *tree_column,
2738                                          GtkTreeModel      *tree_model,
2739                                          GtkTreeIter       *iter,
2740                                          gboolean           is_expander,
2741                                          gboolean           is_expanded)
2742 {
2743   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2744
2745   if (tree_model == NULL)
2746     return;
2747
2748   gtk_cell_area_apply_attributes (tree_column->priv->cell_area, tree_model, iter,
2749                                   is_expander, is_expanded);
2750 }
2751
2752 /**
2753  * gtk_tree_view_column_cell_get_size:
2754  * @tree_column: A #GtkTreeViewColumn.
2755  * @cell_area: (allow-none): The area a cell in the column will be allocated, or %NULL
2756  * @x_offset: (allow-none): location to return x offset of a cell relative to @cell_area, or %NULL
2757  * @y_offset: (allow-none): location to return y offset of a cell relative to @cell_area, or %NULL
2758  * @width: (allow-none): location to return width needed to render a cell, or %NULL
2759  * @height: (allow-none): location to return height needed to render a cell, or %NULL
2760  *
2761  * Obtains the width and height needed to render the column.  This is used
2762  * primarily by the #GtkTreeView.
2763  **/
2764 void
2765 gtk_tree_view_column_cell_get_size (GtkTreeViewColumn  *tree_column,
2766                                     const GdkRectangle *cell_area,
2767                                     gint               *x_offset,
2768                                     gint               *y_offset,
2769                                     gint               *width,
2770                                     gint               *height)
2771 {
2772   GtkTreeViewColumnPrivate *priv;
2773   gint min_width = 0, min_height = 0;
2774
2775   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2776
2777   priv = tree_column->priv;
2778
2779   g_signal_handler_block (priv->cell_area_context,
2780                           priv->context_changed_signal);
2781
2782   gtk_cell_area_get_preferred_width (priv->cell_area,
2783                                      priv->cell_area_context,
2784                                      priv->tree_view,
2785                                      NULL, NULL);
2786
2787   gtk_cell_area_context_get_preferred_width (priv->cell_area_context, &min_width, NULL);
2788
2789   gtk_cell_area_get_preferred_height_for_width (priv->cell_area,
2790                                                 priv->cell_area_context,
2791                                                 priv->tree_view,
2792                                                 min_width,
2793                                                 &min_height,
2794                                                 NULL);
2795
2796   g_signal_handler_unblock (priv->cell_area_context,
2797                             priv->context_changed_signal);
2798
2799
2800   if (height)
2801     * height = min_height;
2802   if (width)
2803     * width = min_width;
2804
2805 }
2806
2807 /**
2808  * gtk_tree_view_column_cell_render:
2809  * @tree_column: A #GtkTreeViewColumn.
2810  * @cr: cairo context to draw to
2811  * @background_area: entire cell area (including tree expanders and maybe padding on the sides)
2812  * @cell_area: area normally rendered by a cell renderer
2813  * @flags: flags that affect rendering
2814  *
2815  * Renders the cell contained by #tree_column. This is used primarily by the
2816  * #GtkTreeView.
2817  **/
2818 void
2819 _gtk_tree_view_column_cell_render (GtkTreeViewColumn  *tree_column,
2820                                    cairo_t            *cr,
2821                                    const GdkRectangle *background_area,
2822                                    const GdkRectangle *cell_area,
2823                                    guint               flags,
2824                                    gboolean            draw_focus)
2825 {
2826   GtkTreeViewColumnPrivate *priv;
2827
2828   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2829   g_return_if_fail (cr != NULL);
2830   g_return_if_fail (background_area != NULL);
2831   g_return_if_fail (cell_area != NULL);
2832
2833   priv = tree_column->priv;
2834
2835   cairo_save (cr);
2836
2837   gtk_cell_area_render (priv->cell_area, priv->cell_area_context,
2838                         priv->tree_view, cr,
2839                         background_area, cell_area, flags,
2840                         draw_focus);
2841
2842   cairo_restore (cr);
2843 }
2844
2845 gboolean
2846 _gtk_tree_view_column_cell_event (GtkTreeViewColumn  *tree_column,
2847                                   GdkEvent           *event,
2848                                   const GdkRectangle *cell_area,
2849                                   guint               flags)
2850 {
2851   GtkTreeViewColumnPrivate *priv;
2852
2853   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2854
2855   priv = tree_column->priv;
2856
2857   return gtk_cell_area_event (priv->cell_area,
2858                               priv->cell_area_context,
2859                               priv->tree_view,
2860                               event,
2861                               cell_area,
2862                               flags);
2863 }
2864
2865 /**
2866  * gtk_tree_view_column_cell_is_visible:
2867  * @tree_column: A #GtkTreeViewColumn
2868  *
2869  * Returns %TRUE if any of the cells packed into the @tree_column are visible.
2870  * For this to be meaningful, you must first initialize the cells with
2871  * gtk_tree_view_column_cell_set_cell_data()
2872  *
2873  * Return value: %TRUE, if any of the cells packed into the @tree_column are currently visible
2874  **/
2875 gboolean
2876 gtk_tree_view_column_cell_is_visible (GtkTreeViewColumn *tree_column)
2877 {
2878   GList *list;
2879   GList *cells;
2880   GtkTreeViewColumnPrivate *priv;
2881
2882   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2883
2884   priv = tree_column->priv;
2885
2886   cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (priv->cell_area));
2887   for (list = cells; list; list = list->next)
2888     {
2889       if (gtk_cell_renderer_get_visible (list->data))
2890         {
2891           g_list_free (cells);
2892           return TRUE;
2893         }
2894     }
2895
2896   g_list_free (cells);
2897
2898   return FALSE;
2899 }
2900
2901 /**
2902  * gtk_tree_view_column_focus_cell:
2903  * @tree_column: A #GtkTreeViewColumn
2904  * @cell: A #GtkCellRenderer
2905  *
2906  * Sets the current keyboard focus to be at @cell, if the column contains
2907  * 2 or more editable and activatable cells.
2908  *
2909  * Since: 2.2
2910  **/
2911 void
2912 gtk_tree_view_column_focus_cell (GtkTreeViewColumn *tree_column,
2913                                  GtkCellRenderer   *cell)
2914 {
2915   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2916   g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
2917
2918   gtk_cell_area_set_focus_cell (tree_column->priv->cell_area, cell);
2919 }
2920
2921 void
2922 _gtk_tree_view_column_cell_set_dirty (GtkTreeViewColumn *tree_column,
2923                                       gboolean           install_handler)
2924 {
2925   GtkTreeViewColumnPrivate *priv = tree_column->priv;
2926
2927   priv->dirty = TRUE;
2928   priv->padding = 0;
2929   priv->width = 0;
2930
2931   /* Issue a manual reset on the context to have all
2932    * sizes re-requested for the context.
2933    */
2934   g_signal_handler_block (priv->cell_area_context,
2935                           priv->context_changed_signal);
2936   gtk_cell_area_context_reset (priv->cell_area_context);
2937   g_signal_handler_unblock (priv->cell_area_context,
2938                             priv->context_changed_signal);
2939
2940   if (priv->tree_view &&
2941       gtk_widget_get_realized (priv->tree_view))
2942     {
2943       _gtk_tree_view_install_mark_rows_col_dirty (GTK_TREE_VIEW (priv->tree_view), install_handler);
2944       gtk_widget_queue_resize (priv->tree_view);
2945     }
2946 }
2947
2948 gboolean
2949 _gtk_tree_view_column_cell_get_dirty (GtkTreeViewColumn  *tree_column)
2950 {
2951   return tree_column->priv->dirty;
2952 }
2953
2954 /**
2955  * gtk_tree_view_column_cell_get_position:
2956  * @tree_column: a #GtkTreeViewColumn
2957  * @cell_renderer: a #GtkCellRenderer
2958  * @x_offset: return location for the horizontal position of @cell within
2959  *            @tree_column, may be %NULL
2960  * @width: return location for the width of @cell, may be %NULL
2961  *
2962  * Obtains the horizontal position and size of a cell in a column. If the
2963  * cell is not found in the column, @start_pos and @width are not changed and
2964  * %FALSE is returned.
2965  *
2966  * Return value: %TRUE if @cell belongs to @tree_column.
2967  */
2968 gboolean
2969 gtk_tree_view_column_cell_get_position (GtkTreeViewColumn *tree_column,
2970                                         GtkCellRenderer   *cell_renderer,
2971                                         gint              *x_offset,
2972                                         gint              *width)
2973 {
2974   GtkTreeViewColumnPrivate *priv;
2975   GdkRectangle zero_cell_area = { 0, };
2976   GdkRectangle allocation;
2977
2978   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2979   g_return_val_if_fail (GTK_IS_CELL_RENDERER (cell_renderer), FALSE);
2980
2981   priv = tree_column->priv;
2982
2983   /* FIXME: Could use a boolean return value for invalid cells */
2984   gtk_cell_area_get_cell_allocation (priv->cell_area,
2985                                      priv->cell_area_context,
2986                                      priv->tree_view,
2987                                      cell_renderer,
2988                                      &zero_cell_area,
2989                                      &allocation);
2990
2991   if (x_offset)
2992     *x_offset = allocation.x;
2993   if (width)
2994     *width = allocation.width;
2995
2996   return TRUE;
2997 }
2998
2999 /**
3000  * gtk_tree_view_column_queue_resize:
3001  * @tree_column: A #GtkTreeViewColumn
3002  *
3003  * Flags the column, and the cell renderers added to this column, to have
3004  * their sizes renegotiated.
3005  *
3006  * Since: 2.8
3007  **/
3008 void
3009 gtk_tree_view_column_queue_resize (GtkTreeViewColumn *tree_column)
3010 {
3011   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
3012
3013   if (tree_column->priv->tree_view)
3014     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
3015 }
3016
3017 /**
3018  * gtk_tree_view_column_get_tree_view:
3019  * @tree_column: A #GtkTreeViewColumn
3020  *
3021  * Returns the #GtkTreeView wherein @tree_column has been inserted.
3022  * If @column is currently not inserted in any tree view, %NULL is
3023  * returned.
3024  *
3025  * Return value: (transfer none): The tree view wherein @column has
3026  *     been inserted if any, %NULL otherwise.
3027  *
3028  * Since: 2.12
3029  */
3030 GtkWidget *
3031 gtk_tree_view_column_get_tree_view (GtkTreeViewColumn *tree_column)
3032 {
3033   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
3034
3035   return tree_column->priv->tree_view;
3036 }
3037
3038 /**
3039  * gtk_tree_view_column_get_button:
3040  * @tree_column: A #GtkTreeViewColumn
3041  *
3042  * Returns the button used in the treeview column header
3043  *
3044  * Return value: (transfer none): The button for the column header.
3045  *
3046  * Since: 3.0
3047  */
3048 GtkWidget *
3049 gtk_tree_view_column_get_button (GtkTreeViewColumn *tree_column)
3050 {
3051   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
3052
3053   return tree_column->priv->button;
3054 }
3055
3056 GdkWindow *
3057 _gtk_tree_view_column_get_window (GtkTreeViewColumn  *column)
3058 {
3059   return column->priv->window;
3060 }
3061
3062 void
3063 _gtk_tree_view_column_push_padding (GtkTreeViewColumn  *column,
3064                                     gint                padding)
3065 {
3066   column->priv->padding = MAX (column->priv->padding, padding);
3067 }
3068
3069 gint
3070 _gtk_tree_view_column_get_requested_width (GtkTreeViewColumn  *column)
3071 {
3072   gint requested_width;
3073
3074   gtk_cell_area_context_get_preferred_width (column->priv->cell_area_context, &requested_width, NULL);
3075
3076   return requested_width + column->priv->padding;
3077 }
3078
3079
3080 void
3081 _gtk_tree_view_column_set_resized_width (GtkTreeViewColumn  *column,
3082                                          gint                width)
3083 {
3084   column->priv->resized_width = width;
3085 }
3086
3087 gint
3088 _gtk_tree_view_column_get_resized_width (GtkTreeViewColumn  *column)
3089 {
3090   return column->priv->resized_width;
3091 }
3092
3093 void
3094 _gtk_tree_view_column_set_use_resized_width (GtkTreeViewColumn  *column,
3095                                              gboolean            use_resized_width)
3096 {
3097   column->priv->use_resized_width = use_resized_width;
3098 }
3099
3100 gboolean
3101 _gtk_tree_view_column_get_use_resized_width (GtkTreeViewColumn  *column)
3102 {
3103   return column->priv->use_resized_width;
3104 }
3105
3106 gint
3107 _gtk_tree_view_column_get_drag_x (GtkTreeViewColumn  *column)
3108 {
3109   return column->priv->drag_x;
3110 }
3111
3112 GtkCellAreaContext *
3113 _gtk_tree_view_column_get_context (GtkTreeViewColumn  *column)
3114 {
3115   return column->priv->cell_area_context;
3116 }