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   gdk_cursor_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                                        gint               x,
1477                                        gint               y)
1478 {
1479   GtkCellRenderer *match = NULL;
1480   GtkTreeViewColumnPrivate *priv = column->priv;
1481
1482   if (x < cell_area->x)
1483     {
1484       /* This can happen when we click in the "indentation".  In this
1485        * case, we set x to cell_area->x, the start of the first cell.
1486        */
1487       x = cell_area->x;
1488     }
1489
1490   match = gtk_cell_area_get_cell_at_position (priv->cell_area,
1491                                               priv->cell_area_context,
1492                                               priv->tree_view,
1493                                               cell_area,
1494                                               x, y,
1495                                               NULL);
1496
1497   return match;
1498 }
1499
1500 /* Public Functions */
1501
1502
1503 /**
1504  * gtk_tree_view_column_new:
1505  *
1506  * Creates a new #GtkTreeViewColumn.
1507  *
1508  * Return value: A newly created #GtkTreeViewColumn.
1509  **/
1510 GtkTreeViewColumn *
1511 gtk_tree_view_column_new (void)
1512 {
1513   GtkTreeViewColumn *tree_column;
1514
1515   tree_column = g_object_new (GTK_TYPE_TREE_VIEW_COLUMN, NULL);
1516
1517   return tree_column;
1518 }
1519
1520 /**
1521  * gtk_tree_view_column_new_with_area:
1522  * @area: the #GtkCellArea that the newly created column should use to layout cells.
1523  *
1524  * Creates a new #GtkTreeViewColumn using @area to render it's cells.
1525  *
1526  * Return value: A newly created #GtkTreeViewColumn.
1527  *
1528  * Since: 3.0
1529  */
1530 GtkTreeViewColumn *
1531 gtk_tree_view_column_new_with_area (GtkCellArea *area)
1532 {
1533   GtkTreeViewColumn *tree_column;
1534
1535   tree_column = g_object_new (GTK_TYPE_TREE_VIEW_COLUMN, "cell-area", area, NULL);
1536
1537   return tree_column;
1538 }
1539
1540
1541 /**
1542  * gtk_tree_view_column_new_with_attributes:
1543  * @title: The title to set the header to.
1544  * @cell: The #GtkCellRenderer.
1545  * @Varargs: A %NULL-terminated list of attributes.
1546  *
1547  * Creates a new #GtkTreeViewColumn with a number of default values.  This is
1548  * equivalent to calling gtk_tree_view_column_set_title(),
1549  * gtk_tree_view_column_pack_start(), and
1550  * gtk_tree_view_column_set_attributes() on the newly created #GtkTreeViewColumn.
1551  *
1552  * Here's a simple example:
1553  * |[
1554  *  enum { TEXT_COLUMN, COLOR_COLUMN, N_COLUMNS };
1555  *  ...
1556  *  {
1557  *    GtkTreeViewColumn *column;
1558  *    GtkCellRenderer   *renderer = gtk_cell_renderer_text_new ();
1559  *
1560  *    column = gtk_tree_view_column_new_with_attributes ("Title",
1561  *                                                       renderer,
1562  *                                                       "text", TEXT_COLUMN,
1563  *                                                       "foreground", COLOR_COLUMN,
1564  *                                                       NULL);
1565  *  }
1566  * ]|
1567  *
1568  * Return value: A newly created #GtkTreeViewColumn.
1569  **/
1570 GtkTreeViewColumn *
1571 gtk_tree_view_column_new_with_attributes (const gchar     *title,
1572                                           GtkCellRenderer *cell,
1573                                           ...)
1574 {
1575   GtkTreeViewColumn *retval;
1576   va_list args;
1577
1578   retval = gtk_tree_view_column_new ();
1579
1580   gtk_tree_view_column_set_title (retval, title);
1581   gtk_tree_view_column_pack_start (retval, cell, TRUE);
1582
1583   va_start (args, cell);
1584   gtk_tree_view_column_set_attributesv (retval, cell, args);
1585   va_end (args);
1586
1587   return retval;
1588 }
1589
1590 /**
1591  * gtk_tree_view_column_pack_start:
1592  * @tree_column: A #GtkTreeViewColumn.
1593  * @cell: The #GtkCellRenderer.
1594  * @expand: %TRUE if @cell is to be given extra space allocated to @tree_column.
1595  *
1596  * Packs the @cell into the beginning of the column. If @expand is %FALSE, then
1597  * the @cell is allocated no more space than it needs. Any unused space is divided
1598  * evenly between cells for which @expand is %TRUE.
1599  **/
1600 void
1601 gtk_tree_view_column_pack_start (GtkTreeViewColumn *tree_column,
1602                                  GtkCellRenderer   *cell,
1603                                  gboolean           expand)
1604 {
1605   gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (tree_column), cell, expand);
1606 }
1607
1608 /**
1609  * gtk_tree_view_column_pack_end:
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  * Adds the @cell to end of the column. If @expand is %FALSE, then the @cell
1615  * 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_end (GtkTreeViewColumn  *tree_column,
1620                                GtkCellRenderer    *cell,
1621                                gboolean            expand)
1622 {
1623   gtk_cell_layout_pack_end (GTK_CELL_LAYOUT (tree_column), cell, expand);
1624 }
1625
1626 /**
1627  * gtk_tree_view_column_clear:
1628  * @tree_column: A #GtkTreeViewColumn
1629  *
1630  * Unsets all the mappings on all renderers on the @tree_column.
1631  **/
1632 void
1633 gtk_tree_view_column_clear (GtkTreeViewColumn *tree_column)
1634 {
1635   gtk_cell_layout_clear (GTK_CELL_LAYOUT (tree_column));
1636 }
1637
1638 /**
1639  * gtk_tree_view_column_add_attribute:
1640  * @tree_column: A #GtkTreeViewColumn.
1641  * @cell_renderer: the #GtkCellRenderer to set attributes on
1642  * @attribute: An attribute on the renderer
1643  * @column: The column position on the model to get the attribute from.
1644  *
1645  * Adds an attribute mapping to the list in @tree_column.  The @column is the
1646  * column of the model to get a value from, and the @attribute is the
1647  * parameter on @cell_renderer to be set from the value. So for example
1648  * if column 2 of the model contains strings, you could have the
1649  * "text" attribute of a #GtkCellRendererText get its values from
1650  * column 2.
1651  **/
1652 void
1653 gtk_tree_view_column_add_attribute (GtkTreeViewColumn *tree_column,
1654                                     GtkCellRenderer   *cell_renderer,
1655                                     const gchar       *attribute,
1656                                     gint               column)
1657 {
1658   gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (tree_column),
1659                                  cell_renderer, attribute, column);
1660 }
1661
1662 static void
1663 gtk_tree_view_column_set_attributesv (GtkTreeViewColumn *tree_column,
1664                                       GtkCellRenderer   *cell_renderer,
1665                                       va_list            args)
1666 {
1667   GtkTreeViewColumnPrivate *priv = tree_column->priv;
1668   gchar *attribute;
1669   gint column;
1670
1671   attribute = va_arg (args, gchar *);
1672
1673   gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (priv->cell_area),
1674                                     cell_renderer);
1675
1676   while (attribute != NULL)
1677     {
1678       column = va_arg (args, gint);
1679       gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (priv->cell_area),
1680                                      cell_renderer, attribute, column);
1681       attribute = va_arg (args, gchar *);
1682     }
1683 }
1684
1685 /**
1686  * gtk_tree_view_column_set_attributes:
1687  * @tree_column: A #GtkTreeViewColumn.
1688  * @cell_renderer: the #GtkCellRenderer we're setting the attributes of
1689  * @Varargs: A %NULL-terminated list of attributes.
1690  *
1691  * Sets the attributes in the list as the attributes of @tree_column.
1692  * The attributes should be in attribute/column order, as in
1693  * gtk_tree_view_column_add_attribute(). All existing attributes
1694  * are removed, and replaced with the new attributes.
1695  **/
1696 void
1697 gtk_tree_view_column_set_attributes (GtkTreeViewColumn *tree_column,
1698                                      GtkCellRenderer   *cell_renderer,
1699                                      ...)
1700 {
1701   va_list args;
1702
1703   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1704   g_return_if_fail (GTK_IS_CELL_RENDERER (cell_renderer));
1705
1706   va_start (args, cell_renderer);
1707   gtk_tree_view_column_set_attributesv (tree_column, cell_renderer, args);
1708   va_end (args);
1709 }
1710
1711
1712 /**
1713  * gtk_tree_view_column_set_cell_data_func:
1714  * @tree_column: A #GtkTreeViewColumn
1715  * @cell_renderer: A #GtkCellRenderer
1716  * @func: The #GtkTreeViewColumnFunc to use.
1717  * @func_data: The user data for @func.
1718  * @destroy: The destroy notification for @func_data
1719  *
1720  * Sets the #GtkTreeViewColumnFunc to use for the column.  This
1721  * function is used instead of the standard attributes mapping for
1722  * setting the column value, and should set the value of @tree_column's
1723  * cell renderer as appropriate.  @func may be %NULL to remove an
1724  * older one.
1725  **/
1726 void
1727 gtk_tree_view_column_set_cell_data_func (GtkTreeViewColumn   *tree_column,
1728                                          GtkCellRenderer     *cell_renderer,
1729                                          GtkTreeCellDataFunc  func,
1730                                          gpointer             func_data,
1731                                          GDestroyNotify       destroy)
1732 {
1733   gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (tree_column),
1734                                       cell_renderer,
1735                                       (GtkCellLayoutDataFunc)func,
1736                                       func_data, destroy);
1737 }
1738
1739
1740 /**
1741  * gtk_tree_view_column_clear_attributes:
1742  * @tree_column: a #GtkTreeViewColumn
1743  * @cell_renderer: a #GtkCellRenderer to clear the attribute mapping on.
1744  *
1745  * Clears all existing attributes previously set with
1746  * gtk_tree_view_column_set_attributes().
1747  **/
1748 void
1749 gtk_tree_view_column_clear_attributes (GtkTreeViewColumn *tree_column,
1750                                        GtkCellRenderer   *cell_renderer)
1751 {
1752   gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (tree_column),
1753                                     cell_renderer);
1754 }
1755
1756 /**
1757  * gtk_tree_view_column_set_spacing:
1758  * @tree_column: A #GtkTreeViewColumn.
1759  * @spacing: distance between cell renderers in pixels.
1760  *
1761  * Sets the spacing field of @tree_column, which is the number of pixels to
1762  * place between cell renderers packed into it.
1763  **/
1764 void
1765 gtk_tree_view_column_set_spacing (GtkTreeViewColumn *tree_column,
1766                                   gint               spacing)
1767 {
1768   GtkTreeViewColumnPrivate *priv;
1769
1770   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1771   g_return_if_fail (spacing >= 0);
1772
1773   priv = tree_column->priv;
1774
1775   gtk_cell_area_box_set_spacing (GTK_CELL_AREA_BOX (priv->cell_area),
1776                                  spacing);
1777   if (priv->tree_view)
1778     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
1779 }
1780
1781 /**
1782  * gtk_tree_view_column_get_spacing:
1783  * @tree_column: A #GtkTreeViewColumn.
1784  *
1785  * Returns the spacing of @tree_column.
1786  *
1787  * Return value: the spacing of @tree_column.
1788  **/
1789 gint
1790 gtk_tree_view_column_get_spacing (GtkTreeViewColumn *tree_column)
1791 {
1792   GtkTreeViewColumnPrivate *priv;
1793
1794   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
1795
1796   priv = tree_column->priv;
1797
1798   return gtk_cell_area_box_get_spacing (GTK_CELL_AREA_BOX (priv->cell_area));
1799 }
1800
1801 /* Options for manipulating the columns */
1802
1803 /**
1804  * gtk_tree_view_column_set_visible:
1805  * @tree_column: A #GtkTreeViewColumn.
1806  * @visible: %TRUE if the @tree_column is visible.
1807  *
1808  * Sets the visibility of @tree_column.
1809  **/
1810 void
1811 gtk_tree_view_column_set_visible (GtkTreeViewColumn *tree_column,
1812                                   gboolean           visible)
1813 {
1814   GtkTreeViewColumnPrivate *priv;
1815
1816   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1817
1818   priv    = tree_column->priv;
1819   visible = !! visible;
1820
1821   if (priv->visible == visible)
1822     return;
1823
1824   priv->visible = visible;
1825
1826   if (priv->visible)
1827     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
1828
1829   gtk_tree_view_column_update_button (tree_column);
1830   g_object_notify (G_OBJECT (tree_column), "visible");
1831 }
1832
1833 /**
1834  * gtk_tree_view_column_get_visible:
1835  * @tree_column: A #GtkTreeViewColumn.
1836  *
1837  * Returns %TRUE if @tree_column is visible.
1838  *
1839  * Return value: whether the column is visible or not.  If it is visible, then
1840  * the tree will show the column.
1841  **/
1842 gboolean
1843 gtk_tree_view_column_get_visible (GtkTreeViewColumn *tree_column)
1844 {
1845   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
1846
1847   return tree_column->priv->visible;
1848 }
1849
1850 /**
1851  * gtk_tree_view_column_set_resizable:
1852  * @tree_column: A #GtkTreeViewColumn
1853  * @resizable: %TRUE, if the column can be resized
1854  *
1855  * If @resizable is %TRUE, then the user can explicitly resize the column by
1856  * grabbing the outer edge of the column button.  If resizable is %TRUE and
1857  * sizing mode of the column is #GTK_TREE_VIEW_COLUMN_AUTOSIZE, then the sizing
1858  * mode is changed to #GTK_TREE_VIEW_COLUMN_GROW_ONLY.
1859  **/
1860 void
1861 gtk_tree_view_column_set_resizable (GtkTreeViewColumn *tree_column,
1862                                     gboolean           resizable)
1863 {
1864   GtkTreeViewColumnPrivate *priv;
1865
1866   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1867
1868   priv      = tree_column->priv;
1869   resizable = !! resizable;
1870
1871   if (priv->resizable == resizable)
1872     return;
1873
1874   priv->resizable = resizable;
1875
1876   if (resizable && priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
1877     gtk_tree_view_column_set_sizing (tree_column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
1878
1879   gtk_tree_view_column_update_button (tree_column);
1880
1881   g_object_notify (G_OBJECT (tree_column), "resizable");
1882 }
1883
1884 /**
1885  * gtk_tree_view_column_get_resizable:
1886  * @tree_column: A #GtkTreeViewColumn
1887  *
1888  * Returns %TRUE if the @tree_column can be resized by the end user.
1889  *
1890  * Return value: %TRUE, if the @tree_column can be resized.
1891  **/
1892 gboolean
1893 gtk_tree_view_column_get_resizable (GtkTreeViewColumn *tree_column)
1894 {
1895   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
1896
1897   return tree_column->priv->resizable;
1898 }
1899
1900
1901 /**
1902  * gtk_tree_view_column_set_sizing:
1903  * @tree_column: A #GtkTreeViewColumn.
1904  * @type: The #GtkTreeViewColumnSizing.
1905  *
1906  * Sets the growth behavior of @tree_column to @type.
1907  **/
1908 void
1909 gtk_tree_view_column_set_sizing (GtkTreeViewColumn       *tree_column,
1910                                  GtkTreeViewColumnSizing  type)
1911 {
1912   GtkTreeViewColumnPrivate *priv;
1913
1914   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1915
1916   priv      = tree_column->priv;
1917
1918   if (type == priv->column_type)
1919     return;
1920
1921   if (type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
1922     gtk_tree_view_column_set_resizable (tree_column, FALSE);
1923
1924   priv->column_type = type;
1925
1926   gtk_tree_view_column_update_button (tree_column);
1927
1928   g_object_notify (G_OBJECT (tree_column), "sizing");
1929 }
1930
1931 /**
1932  * gtk_tree_view_column_get_sizing:
1933  * @tree_column: A #GtkTreeViewColumn.
1934  *
1935  * Returns the current type of @tree_column.
1936  *
1937  * Return value: The type of @tree_column.
1938  **/
1939 GtkTreeViewColumnSizing
1940 gtk_tree_view_column_get_sizing (GtkTreeViewColumn *tree_column)
1941 {
1942   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
1943
1944   return tree_column->priv->column_type;
1945 }
1946
1947 /**
1948  * gtk_tree_view_column_get_width:
1949  * @tree_column: A #GtkTreeViewColumn.
1950  *
1951  * Returns the current size of @tree_column in pixels.
1952  *
1953  * Return value: The current width of @tree_column.
1954  **/
1955 gint
1956 gtk_tree_view_column_get_width (GtkTreeViewColumn *tree_column)
1957 {
1958   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
1959
1960   return tree_column->priv->width;
1961 }
1962
1963 gint
1964 _gtk_tree_view_column_request_width (GtkTreeViewColumn *tree_column)
1965 {
1966   GtkTreeViewColumnPrivate *priv;
1967   gint real_requested_width;
1968
1969   priv = tree_column->priv;
1970
1971   if (priv->use_resized_width)
1972     {
1973       real_requested_width = priv->resized_width;
1974     }
1975   else if (priv->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
1976     {
1977       real_requested_width = priv->fixed_width;
1978     }
1979   else if (gtk_tree_view_get_headers_visible (GTK_TREE_VIEW (priv->tree_view)))
1980     {
1981       gint button_request;
1982       gint requested_width;
1983
1984       gtk_cell_area_context_get_preferred_width (priv->cell_area_context, &requested_width, NULL);
1985       requested_width += priv->padding;
1986
1987       gtk_widget_get_preferred_width (priv->button, &button_request, NULL);
1988       real_requested_width = MAX (requested_width, button_request);
1989     }
1990   else
1991     {
1992       gint requested_width;
1993
1994       gtk_cell_area_context_get_preferred_width (priv->cell_area_context, &requested_width, NULL);
1995       requested_width += priv->padding;
1996
1997       real_requested_width = requested_width;
1998       if (real_requested_width < 0)
1999         real_requested_width = 0;
2000     }
2001
2002   if (priv->min_width != -1)
2003     real_requested_width = MAX (real_requested_width, priv->min_width);
2004
2005   if (priv->max_width != -1)
2006     real_requested_width = MIN (real_requested_width, priv->max_width);
2007
2008   return real_requested_width;
2009 }
2010
2011 void
2012 _gtk_tree_view_column_allocate (GtkTreeViewColumn *tree_column,
2013                                 int                x_offset,
2014                                 int                width)
2015 {
2016   GtkTreeViewColumnPrivate *priv;
2017   GtkAllocation             allocation;
2018   gboolean                  rtl;
2019
2020   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2021
2022   priv = tree_column->priv;
2023
2024   priv->width = width;
2025
2026   gtk_cell_area_context_allocate (priv->cell_area_context, priv->width - priv->padding, -1);
2027
2028   allocation.x      = x_offset;
2029   allocation.y      = 0;
2030   allocation.width  = width;
2031   allocation.height = _gtk_tree_view_get_header_height (GTK_TREE_VIEW (priv->tree_view));
2032
2033   gtk_widget_size_allocate (priv->button, &allocation);
2034
2035   if (priv->window)
2036     {
2037       rtl = (gtk_widget_get_direction (priv->tree_view) == GTK_TEXT_DIR_RTL);
2038       gdk_window_move_resize (priv->window,
2039                               allocation.x + (rtl ? 0 : allocation.width) - TREE_VIEW_DRAG_WIDTH/2,
2040                               allocation.y,
2041                               TREE_VIEW_DRAG_WIDTH, allocation.height);
2042     }
2043
2044   g_object_notify (G_OBJECT (tree_column), "width");
2045 }
2046
2047 /**
2048  * gtk_tree_view_column_set_fixed_width:
2049  * @tree_column: A #GtkTreeViewColumn.
2050  * @fixed_width: The size to set @tree_column to. Must be greater than 0.
2051  *
2052  * Sets the size of the column in pixels.  This is meaningful only if the sizing
2053  * type is #GTK_TREE_VIEW_COLUMN_FIXED.  The size of the column is clamped to
2054  * the min/max width for the column.  Please note that the min/max width of the
2055  * column doesn't actually affect the "fixed_width" property of the widget, just
2056  * the actual size when displayed.
2057  **/
2058 void
2059 gtk_tree_view_column_set_fixed_width (GtkTreeViewColumn *tree_column,
2060                                       gint               fixed_width)
2061 {
2062   GtkTreeViewColumnPrivate *priv;
2063
2064   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2065   g_return_if_fail (fixed_width > 0);
2066
2067   priv = tree_column->priv;
2068
2069   priv->fixed_width = fixed_width;
2070   priv->use_resized_width = FALSE;
2071
2072   if (priv->tree_view &&
2073       gtk_widget_get_realized (priv->tree_view) &&
2074       priv->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2075     {
2076       gtk_widget_queue_resize (priv->tree_view);
2077     }
2078
2079   g_object_notify (G_OBJECT (tree_column), "fixed-width");
2080 }
2081
2082 /**
2083  * gtk_tree_view_column_get_fixed_width:
2084  * @tree_column: a #GtkTreeViewColumn
2085  *
2086  * Gets the fixed width of the column.  This value is only meaning may not be
2087  * the actual width of the column on the screen, just what is requested.
2088  *
2089  * Return value: the fixed width of the column
2090  **/
2091 gint
2092 gtk_tree_view_column_get_fixed_width (GtkTreeViewColumn *tree_column)
2093 {
2094   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
2095
2096   return tree_column->priv->fixed_width;
2097 }
2098
2099 /**
2100  * gtk_tree_view_column_set_min_width:
2101  * @tree_column: A #GtkTreeViewColumn.
2102  * @min_width: The minimum width of the column in pixels, or -1.
2103  *
2104  * Sets the minimum width of the @tree_column.  If @min_width is -1, then the
2105  * minimum width is unset.
2106  **/
2107 void
2108 gtk_tree_view_column_set_min_width (GtkTreeViewColumn *tree_column,
2109                                     gint               min_width)
2110 {
2111   GtkTreeViewColumnPrivate *priv;
2112
2113   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2114   g_return_if_fail (min_width >= -1);
2115
2116   priv = tree_column->priv;
2117
2118   if (min_width == priv->min_width)
2119     return;
2120
2121   if (priv->visible &&
2122       priv->tree_view != NULL &&
2123       gtk_widget_get_realized (priv->tree_view))
2124     {
2125       if (min_width > priv->width)
2126         gtk_widget_queue_resize (priv->tree_view);
2127     }
2128
2129   priv->min_width = min_width;
2130   g_object_freeze_notify (G_OBJECT (tree_column));
2131   if (priv->max_width != -1 && priv->max_width < min_width)
2132     {
2133       priv->max_width = min_width;
2134       g_object_notify (G_OBJECT (tree_column), "max-width");
2135     }
2136   g_object_notify (G_OBJECT (tree_column), "min-width");
2137   g_object_thaw_notify (G_OBJECT (tree_column));
2138
2139   if (priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2140     _gtk_tree_view_column_autosize (GTK_TREE_VIEW (priv->tree_view),
2141                                     tree_column);
2142 }
2143
2144 /**
2145  * gtk_tree_view_column_get_min_width:
2146  * @tree_column: A #GtkTreeViewColumn.
2147  *
2148  * Returns the minimum width in pixels of the @tree_column, or -1 if no minimum
2149  * width is set.
2150  *
2151  * Return value: The minimum width of the @tree_column.
2152  **/
2153 gint
2154 gtk_tree_view_column_get_min_width (GtkTreeViewColumn *tree_column)
2155 {
2156   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), -1);
2157
2158   return tree_column->priv->min_width;
2159 }
2160
2161 /**
2162  * gtk_tree_view_column_set_max_width:
2163  * @tree_column: A #GtkTreeViewColumn.
2164  * @max_width: The maximum width of the column in pixels, or -1.
2165  *
2166  * Sets the maximum width of the @tree_column.  If @max_width is -1, then the
2167  * maximum width is unset.  Note, the column can actually be wider than max
2168  * width if it's the last column in a view.  In this case, the column expands to
2169  * fill any extra space.
2170  **/
2171 void
2172 gtk_tree_view_column_set_max_width (GtkTreeViewColumn *tree_column,
2173                                     gint               max_width)
2174 {
2175   GtkTreeViewColumnPrivate *priv;
2176
2177   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2178   g_return_if_fail (max_width >= -1);
2179
2180   priv = tree_column->priv;
2181
2182   if (max_width == priv->max_width)
2183     return;
2184
2185   if (priv->visible &&
2186       priv->tree_view != NULL &&
2187       gtk_widget_get_realized (priv->tree_view))
2188     {
2189       if (max_width != -1 && max_width < priv->width)
2190         gtk_widget_queue_resize (priv->tree_view);
2191     }
2192
2193   priv->max_width = max_width;
2194   g_object_freeze_notify (G_OBJECT (tree_column));
2195   if (max_width != -1 && max_width < priv->min_width)
2196     {
2197       priv->min_width = max_width;
2198       g_object_notify (G_OBJECT (tree_column), "min-width");
2199     }
2200   g_object_notify (G_OBJECT (tree_column), "max-width");
2201   g_object_thaw_notify (G_OBJECT (tree_column));
2202
2203   if (priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2204     _gtk_tree_view_column_autosize (GTK_TREE_VIEW (priv->tree_view),
2205                                     tree_column);
2206 }
2207
2208 /**
2209  * gtk_tree_view_column_get_max_width:
2210  * @tree_column: A #GtkTreeViewColumn.
2211  *
2212  * Returns the maximum width in pixels of the @tree_column, or -1 if no maximum
2213  * width is set.
2214  *
2215  * Return value: The maximum width of the @tree_column.
2216  **/
2217 gint
2218 gtk_tree_view_column_get_max_width (GtkTreeViewColumn *tree_column)
2219 {
2220   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), -1);
2221
2222   return tree_column->priv->max_width;
2223 }
2224
2225 /**
2226  * gtk_tree_view_column_clicked:
2227  * @tree_column: a #GtkTreeViewColumn
2228  *
2229  * Emits the "clicked" signal on the column.  This function will only work if
2230  * @tree_column is clickable.
2231  **/
2232 void
2233 gtk_tree_view_column_clicked (GtkTreeViewColumn *tree_column)
2234 {
2235   GtkTreeViewColumnPrivate *priv;
2236
2237   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2238
2239   priv = tree_column->priv;
2240
2241   if (priv->visible &&
2242       priv->button &&
2243       priv->clickable)
2244     gtk_button_clicked (GTK_BUTTON (priv->button));
2245 }
2246
2247 /**
2248  * gtk_tree_view_column_set_title:
2249  * @tree_column: A #GtkTreeViewColumn.
2250  * @title: The title of the @tree_column.
2251  *
2252  * Sets the title of the @tree_column.  If a custom widget has been set, then
2253  * this value is ignored.
2254  **/
2255 void
2256 gtk_tree_view_column_set_title (GtkTreeViewColumn *tree_column,
2257                                 const gchar       *title)
2258 {
2259   GtkTreeViewColumnPrivate *priv;
2260   gchar                    *new_title;
2261
2262   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2263
2264   priv = tree_column->priv;
2265
2266   new_title = g_strdup (title);
2267   g_free (priv->title);
2268   priv->title = new_title;
2269
2270   gtk_tree_view_column_update_button (tree_column);
2271   g_object_notify (G_OBJECT (tree_column), "title");
2272 }
2273
2274 /**
2275  * gtk_tree_view_column_get_title:
2276  * @tree_column: A #GtkTreeViewColumn.
2277  *
2278  * Returns the title of the widget.
2279  *
2280  * Return value: the title of the column. This string should not be
2281  * modified or freed.
2282  **/
2283 G_CONST_RETURN gchar *
2284 gtk_tree_view_column_get_title (GtkTreeViewColumn *tree_column)
2285 {
2286   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
2287
2288   return tree_column->priv->title;
2289 }
2290
2291 /**
2292  * gtk_tree_view_column_set_expand:
2293  * @tree_column: A #GtkTreeViewColumn
2294  * @expand: %TRUE if the column should take available extra space, %FALSE if not
2295  *
2296  * Sets the column to take available extra space.  This space is shared equally
2297  * amongst all columns that have the expand set to %TRUE.  If no column has this
2298  * option set, then the last column gets all extra space.  By default, every
2299  * column is created with this %FALSE.
2300  *
2301  * Since: 2.4
2302  **/
2303 void
2304 gtk_tree_view_column_set_expand (GtkTreeViewColumn *tree_column,
2305                                  gboolean           expand)
2306 {
2307   GtkTreeViewColumnPrivate *priv;
2308
2309   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2310
2311   priv = tree_column->priv;
2312
2313   expand = expand?TRUE:FALSE;
2314   if (priv->expand == expand)
2315     return;
2316   priv->expand = expand;
2317
2318   if (priv->visible &&
2319       priv->tree_view != NULL &&
2320       gtk_widget_get_realized (priv->tree_view))
2321     {
2322       /* We want to continue using the original width of the
2323        * column that includes additional space added by the user
2324        * resizing the columns and possibly extra (expanded) space, which
2325        * are not included in the resized width.
2326        */
2327       priv->use_resized_width = FALSE;
2328
2329       gtk_widget_queue_resize (priv->tree_view);
2330     }
2331
2332   g_object_notify (G_OBJECT (tree_column), "expand");
2333 }
2334
2335 /**
2336  * gtk_tree_view_column_get_expand:
2337  * @tree_column: a #GtkTreeViewColumn
2338  *
2339  * Return %TRUE if the column expands to take any available space.
2340  *
2341  * Return value: %TRUE, if the column expands
2342  *
2343  * Since: 2.4
2344  **/
2345 gboolean
2346 gtk_tree_view_column_get_expand (GtkTreeViewColumn *tree_column)
2347 {
2348   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2349
2350   return tree_column->priv->expand;
2351 }
2352
2353 /**
2354  * gtk_tree_view_column_set_clickable:
2355  * @tree_column: A #GtkTreeViewColumn.
2356  * @clickable: %TRUE if the header is active.
2357  *
2358  * Sets the header to be active if @active is %TRUE.  When the header is active,
2359  * then it can take keyboard focus, and can be clicked.
2360  **/
2361 void
2362 gtk_tree_view_column_set_clickable (GtkTreeViewColumn *tree_column,
2363                                     gboolean           clickable)
2364 {
2365   GtkTreeViewColumnPrivate *priv;
2366
2367   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2368
2369   priv = tree_column->priv;
2370
2371   clickable = !! clickable;
2372   if (priv->clickable == clickable)
2373     return;
2374
2375   priv->clickable = clickable;
2376   gtk_tree_view_column_update_button (tree_column);
2377   g_object_notify (G_OBJECT (tree_column), "clickable");
2378 }
2379
2380 /**
2381  * gtk_tree_view_column_get_clickable:
2382  * @tree_column: a #GtkTreeViewColumn
2383  *
2384  * Returns %TRUE if the user can click on the header for the column.
2385  *
2386  * Return value: %TRUE if user can click the column header.
2387  **/
2388 gboolean
2389 gtk_tree_view_column_get_clickable (GtkTreeViewColumn *tree_column)
2390 {
2391   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2392
2393   return tree_column->priv->clickable;
2394 }
2395
2396 /**
2397  * gtk_tree_view_column_set_widget:
2398  * @tree_column: A #GtkTreeViewColumn.
2399  * @widget: (allow-none): A child #GtkWidget, or %NULL.
2400  *
2401  * Sets the widget in the header to be @widget.  If widget is %NULL, then the
2402  * header button is set with a #GtkLabel set to the title of @tree_column.
2403  **/
2404 void
2405 gtk_tree_view_column_set_widget (GtkTreeViewColumn *tree_column,
2406                                  GtkWidget         *widget)
2407 {
2408   GtkTreeViewColumnPrivate *priv;
2409
2410   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2411   g_return_if_fail (widget == NULL || GTK_IS_WIDGET (widget));
2412
2413   priv = tree_column->priv;
2414
2415   if (widget)
2416     g_object_ref_sink (widget);
2417
2418   if (priv->child)
2419     g_object_unref (priv->child);
2420
2421   priv->child = widget;
2422   gtk_tree_view_column_update_button (tree_column);
2423   g_object_notify (G_OBJECT (tree_column), "widget");
2424 }
2425
2426 /**
2427  * gtk_tree_view_column_get_widget:
2428  * @tree_column: A #GtkTreeViewColumn.
2429  *
2430  * Returns the #GtkWidget in the button on the column header.
2431  * If a custom widget has not been set then %NULL is returned.
2432  *
2433  * Return value: (transfer none): The #GtkWidget in the column
2434  *     header, or %NULL
2435  **/
2436 GtkWidget *
2437 gtk_tree_view_column_get_widget (GtkTreeViewColumn *tree_column)
2438 {
2439   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
2440
2441   return tree_column->priv->child;
2442 }
2443
2444 /**
2445  * gtk_tree_view_column_set_alignment:
2446  * @tree_column: A #GtkTreeViewColumn.
2447  * @xalign: The alignment, which is between [0.0 and 1.0] inclusive.
2448  *
2449  * Sets the alignment of the title or custom widget inside the column header.
2450  * The alignment determines its location inside the button -- 0.0 for left, 0.5
2451  * for center, 1.0 for right.
2452  **/
2453 void
2454 gtk_tree_view_column_set_alignment (GtkTreeViewColumn *tree_column,
2455                                     gfloat             xalign)
2456 {
2457   GtkTreeViewColumnPrivate *priv;
2458
2459   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2460
2461   priv = tree_column->priv;
2462
2463   xalign = CLAMP (xalign, 0.0, 1.0);
2464
2465   if (priv->xalign == xalign)
2466     return;
2467
2468   priv->xalign = xalign;
2469   gtk_tree_view_column_update_button (tree_column);
2470   g_object_notify (G_OBJECT (tree_column), "alignment");
2471 }
2472
2473 /**
2474  * gtk_tree_view_column_get_alignment:
2475  * @tree_column: A #GtkTreeViewColumn.
2476  *
2477  * Returns the current x alignment of @tree_column.  This value can range
2478  * between 0.0 and 1.0.
2479  *
2480  * Return value: The current alignent of @tree_column.
2481  **/
2482 gfloat
2483 gtk_tree_view_column_get_alignment (GtkTreeViewColumn *tree_column)
2484 {
2485   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0.5);
2486
2487   return tree_column->priv->xalign;
2488 }
2489
2490 /**
2491  * gtk_tree_view_column_set_reorderable:
2492  * @tree_column: A #GtkTreeViewColumn
2493  * @reorderable: %TRUE, if the column can be reordered.
2494  *
2495  * If @reorderable is %TRUE, then the column can be reordered by the end user
2496  * dragging the header.
2497  **/
2498 void
2499 gtk_tree_view_column_set_reorderable (GtkTreeViewColumn *tree_column,
2500                                       gboolean           reorderable)
2501 {
2502   GtkTreeViewColumnPrivate *priv;
2503
2504   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2505
2506   priv = tree_column->priv;
2507
2508   /*  if (reorderable)
2509       gtk_tree_view_column_set_clickable (tree_column, TRUE);*/
2510
2511   if (priv->reorderable == (reorderable?TRUE:FALSE))
2512     return;
2513
2514   priv->reorderable = (reorderable?TRUE:FALSE);
2515   gtk_tree_view_column_update_button (tree_column);
2516   g_object_notify (G_OBJECT (tree_column), "reorderable");
2517 }
2518
2519 /**
2520  * gtk_tree_view_column_get_reorderable:
2521  * @tree_column: A #GtkTreeViewColumn
2522  *
2523  * Returns %TRUE if the @tree_column can be reordered by the user.
2524  *
2525  * Return value: %TRUE if the @tree_column can be reordered by the user.
2526  **/
2527 gboolean
2528 gtk_tree_view_column_get_reorderable (GtkTreeViewColumn *tree_column)
2529 {
2530   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2531
2532   return tree_column->priv->reorderable;
2533 }
2534
2535
2536 /**
2537  * gtk_tree_view_column_set_sort_column_id:
2538  * @tree_column: a #GtkTreeViewColumn
2539  * @sort_column_id: The @sort_column_id of the model to sort on.
2540  *
2541  * Sets the logical @sort_column_id that this column sorts on when this column
2542  * is selected for sorting.  Doing so makes the column header clickable.
2543  **/
2544 void
2545 gtk_tree_view_column_set_sort_column_id (GtkTreeViewColumn *tree_column,
2546                                          gint               sort_column_id)
2547 {
2548   GtkTreeViewColumnPrivate *priv;
2549
2550   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2551   g_return_if_fail (sort_column_id >= -1);
2552
2553   priv = tree_column->priv;
2554
2555   if (priv->sort_column_id == sort_column_id)
2556     return;
2557
2558   priv->sort_column_id = sort_column_id;
2559
2560   /* Handle unsetting the id */
2561   if (sort_column_id == -1)
2562     {
2563       GtkTreeModel *model = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
2564
2565       if (priv->sort_clicked_signal)
2566         {
2567           g_signal_handler_disconnect (tree_column, priv->sort_clicked_signal);
2568           priv->sort_clicked_signal = 0;
2569         }
2570
2571       if (priv->sort_column_changed_signal)
2572         {
2573           g_signal_handler_disconnect (model, priv->sort_column_changed_signal);
2574           priv->sort_column_changed_signal = 0;
2575         }
2576
2577       gtk_tree_view_column_set_sort_order (tree_column, GTK_SORT_ASCENDING);
2578       gtk_tree_view_column_set_sort_indicator (tree_column, FALSE);
2579       gtk_tree_view_column_set_clickable (tree_column, FALSE);
2580       g_object_notify (G_OBJECT (tree_column), "sort-column-id");
2581       return;
2582     }
2583
2584   gtk_tree_view_column_set_clickable (tree_column, TRUE);
2585
2586   if (! priv->sort_clicked_signal)
2587     priv->sort_clicked_signal = g_signal_connect (tree_column,
2588                                                   "clicked",
2589                                                   G_CALLBACK (gtk_tree_view_column_sort),
2590                                                   NULL);
2591
2592   gtk_tree_view_column_setup_sort_column_id_callback (tree_column);
2593   g_object_notify (G_OBJECT (tree_column), "sort-column-id");
2594 }
2595
2596 /**
2597  * gtk_tree_view_column_get_sort_column_id:
2598  * @tree_column: a #GtkTreeViewColumn
2599  *
2600  * Gets the logical @sort_column_id that the model sorts on when this
2601  * column is selected for sorting.
2602  * See gtk_tree_view_column_set_sort_column_id().
2603  *
2604  * Return value: the current @sort_column_id for this column, or -1 if
2605  *               this column can't be used for sorting.
2606  **/
2607 gint
2608 gtk_tree_view_column_get_sort_column_id (GtkTreeViewColumn *tree_column)
2609 {
2610   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
2611
2612   return tree_column->priv->sort_column_id;
2613 }
2614
2615 /**
2616  * gtk_tree_view_column_set_sort_indicator:
2617  * @tree_column: a #GtkTreeViewColumn
2618  * @setting: %TRUE to display an indicator that the column is sorted
2619  *
2620  * Call this function with a @setting of %TRUE to display an arrow in
2621  * the header button indicating the column is sorted. Call
2622  * gtk_tree_view_column_set_sort_order() to change the direction of
2623  * the arrow.
2624  *
2625  **/
2626 void
2627 gtk_tree_view_column_set_sort_indicator (GtkTreeViewColumn     *tree_column,
2628                                          gboolean               setting)
2629 {
2630   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2631
2632   setting = setting != FALSE;
2633
2634   if (setting == tree_column->priv->show_sort_indicator)
2635     return;
2636
2637   tree_column->priv->show_sort_indicator = setting;
2638   gtk_tree_view_column_update_button (tree_column);
2639   g_object_notify (G_OBJECT (tree_column), "sort-indicator");
2640 }
2641
2642 /**
2643  * gtk_tree_view_column_get_sort_indicator:
2644  * @tree_column: a #GtkTreeViewColumn
2645  *
2646  * Gets the value set by gtk_tree_view_column_set_sort_indicator().
2647  *
2648  * Return value: whether the sort indicator arrow is displayed
2649  **/
2650 gboolean
2651 gtk_tree_view_column_get_sort_indicator  (GtkTreeViewColumn     *tree_column)
2652 {
2653   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2654
2655   return tree_column->priv->show_sort_indicator;
2656 }
2657
2658 /**
2659  * gtk_tree_view_column_set_sort_order:
2660  * @tree_column: a #GtkTreeViewColumn
2661  * @order: sort order that the sort indicator should indicate
2662  *
2663  * Changes the appearance of the sort indicator.
2664  *
2665  * This <emphasis>does not</emphasis> actually sort the model.  Use
2666  * gtk_tree_view_column_set_sort_column_id() if you want automatic sorting
2667  * support.  This function is primarily for custom sorting behavior, and should
2668  * be used in conjunction with gtk_tree_sortable_set_sort_column() to do
2669  * that. For custom models, the mechanism will vary.
2670  *
2671  * The sort indicator changes direction to indicate normal sort or reverse sort.
2672  * Note that you must have the sort indicator enabled to see anything when
2673  * calling this function; see gtk_tree_view_column_set_sort_indicator().
2674  **/
2675 void
2676 gtk_tree_view_column_set_sort_order      (GtkTreeViewColumn     *tree_column,
2677                                           GtkSortType            order)
2678 {
2679   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2680
2681   if (order == tree_column->priv->sort_order)
2682     return;
2683
2684   tree_column->priv->sort_order = order;
2685   gtk_tree_view_column_update_button (tree_column);
2686   g_object_notify (G_OBJECT (tree_column), "sort-order");
2687 }
2688
2689 /**
2690  * gtk_tree_view_column_get_sort_order:
2691  * @tree_column: a #GtkTreeViewColumn
2692  *
2693  * Gets the value set by gtk_tree_view_column_set_sort_order().
2694  *
2695  * Return value: the sort order the sort indicator is indicating
2696  **/
2697 GtkSortType
2698 gtk_tree_view_column_get_sort_order      (GtkTreeViewColumn     *tree_column)
2699 {
2700   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
2701
2702   return tree_column->priv->sort_order;
2703 }
2704
2705 /**
2706  * gtk_tree_view_column_cell_set_cell_data:
2707  * @tree_column: A #GtkTreeViewColumn.
2708  * @tree_model: The #GtkTreeModel to to get the cell renderers attributes from.
2709  * @iter: The #GtkTreeIter to to get the cell renderer's attributes from.
2710  * @is_expander: %TRUE, if the row has children
2711  * @is_expanded: %TRUE, if the row has visible children
2712  *
2713  * Sets the cell renderer based on the @tree_model and @iter.  That is, for
2714  * every attribute mapping in @tree_column, it will get a value from the set
2715  * column on the @iter, and use that value to set the attribute on the cell
2716  * renderer.  This is used primarily by the #GtkTreeView.
2717  **/
2718 void
2719 gtk_tree_view_column_cell_set_cell_data (GtkTreeViewColumn *tree_column,
2720                                          GtkTreeModel      *tree_model,
2721                                          GtkTreeIter       *iter,
2722                                          gboolean           is_expander,
2723                                          gboolean           is_expanded)
2724 {
2725   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2726
2727   if (tree_model == NULL)
2728     return;
2729
2730   gtk_cell_area_apply_attributes (tree_column->priv->cell_area, tree_model, iter,
2731                                   is_expander, is_expanded);
2732 }
2733
2734 /**
2735  * gtk_tree_view_column_cell_get_size:
2736  * @tree_column: A #GtkTreeViewColumn.
2737  * @cell_area: (allow-none): The area a cell in the column will be allocated, or %NULL
2738  * @x_offset: (allow-none): location to return x offset of a cell relative to @cell_area, or %NULL
2739  * @y_offset: (allow-none): location to return y offset of a cell relative to @cell_area, or %NULL
2740  * @width: (allow-none): location to return width needed to render a cell, or %NULL
2741  * @height: (allow-none): location to return height needed to render a cell, or %NULL
2742  *
2743  * Obtains the width and height needed to render the column.  This is used
2744  * primarily by the #GtkTreeView.
2745  **/
2746 void
2747 gtk_tree_view_column_cell_get_size (GtkTreeViewColumn  *tree_column,
2748                                     const GdkRectangle *cell_area,
2749                                     gint               *x_offset,
2750                                     gint               *y_offset,
2751                                     gint               *width,
2752                                     gint               *height)
2753 {
2754   GtkTreeViewColumnPrivate *priv;
2755   gint min_width = 0, min_height = 0;
2756
2757   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2758
2759   priv = tree_column->priv;
2760
2761   g_signal_handler_block (priv->cell_area_context,
2762                           priv->context_changed_signal);
2763
2764   gtk_cell_area_get_preferred_width (priv->cell_area,
2765                                      priv->cell_area_context,
2766                                      priv->tree_view,
2767                                      NULL, NULL);
2768
2769   gtk_cell_area_context_get_preferred_width (priv->cell_area_context, &min_width, NULL);
2770
2771   gtk_cell_area_get_preferred_height_for_width (priv->cell_area,
2772                                                 priv->cell_area_context,
2773                                                 priv->tree_view,
2774                                                 min_width,
2775                                                 &min_height,
2776                                                 NULL);
2777
2778   g_signal_handler_unblock (priv->cell_area_context,
2779                             priv->context_changed_signal);
2780
2781
2782   if (height)
2783     * height = min_height;
2784   if (width)
2785     * width = min_width;
2786
2787 }
2788
2789 /**
2790  * gtk_tree_view_column_cell_render:
2791  * @tree_column: A #GtkTreeViewColumn.
2792  * @cr: cairo context to draw to
2793  * @background_area: entire cell area (including tree expanders and maybe padding on the sides)
2794  * @cell_area: area normally rendered by a cell renderer
2795  * @flags: flags that affect rendering
2796  *
2797  * Renders the cell contained by #tree_column. This is used primarily by the
2798  * #GtkTreeView.
2799  **/
2800 void
2801 _gtk_tree_view_column_cell_render (GtkTreeViewColumn  *tree_column,
2802                                    cairo_t            *cr,
2803                                    const GdkRectangle *background_area,
2804                                    const GdkRectangle *cell_area,
2805                                    guint               flags,
2806                                    gboolean            draw_focus)
2807 {
2808   GtkTreeViewColumnPrivate *priv;
2809
2810   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2811   g_return_if_fail (cr != NULL);
2812   g_return_if_fail (background_area != NULL);
2813   g_return_if_fail (cell_area != NULL);
2814
2815   priv = tree_column->priv;
2816
2817   cairo_save (cr);
2818
2819   gtk_cell_area_render (priv->cell_area, priv->cell_area_context,
2820                         priv->tree_view, cr,
2821                         background_area, cell_area, flags,
2822                         draw_focus);
2823
2824   cairo_restore (cr);
2825 }
2826
2827 gboolean
2828 _gtk_tree_view_column_cell_event (GtkTreeViewColumn  *tree_column,
2829                                   GdkEvent           *event,
2830                                   const GdkRectangle *cell_area,
2831                                   guint               flags)
2832 {
2833   GtkTreeViewColumnPrivate *priv;
2834
2835   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2836
2837   priv = tree_column->priv;
2838
2839   return gtk_cell_area_event (priv->cell_area,
2840                               priv->cell_area_context,
2841                               priv->tree_view,
2842                               event,
2843                               cell_area,
2844                               flags);
2845 }
2846
2847 /**
2848  * gtk_tree_view_column_cell_is_visible:
2849  * @tree_column: A #GtkTreeViewColumn
2850  *
2851  * Returns %TRUE if any of the cells packed into the @tree_column are visible.
2852  * For this to be meaningful, you must first initialize the cells with
2853  * gtk_tree_view_column_cell_set_cell_data()
2854  *
2855  * Return value: %TRUE, if any of the cells packed into the @tree_column are currently visible
2856  **/
2857 gboolean
2858 gtk_tree_view_column_cell_is_visible (GtkTreeViewColumn *tree_column)
2859 {
2860   GList *list;
2861   GList *cells;
2862   GtkTreeViewColumnPrivate *priv;
2863
2864   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2865
2866   priv = tree_column->priv;
2867
2868   cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (priv->cell_area));
2869   for (list = cells; list; list = list->next)
2870     {
2871       if (gtk_cell_renderer_get_visible (list->data))
2872         {
2873           g_list_free (cells);
2874           return TRUE;
2875         }
2876     }
2877
2878   g_list_free (cells);
2879
2880   return FALSE;
2881 }
2882
2883 /**
2884  * gtk_tree_view_column_focus_cell:
2885  * @tree_column: A #GtkTreeViewColumn
2886  * @cell: A #GtkCellRenderer
2887  *
2888  * Sets the current keyboard focus to be at @cell, if the column contains
2889  * 2 or more editable and activatable cells.
2890  *
2891  * Since: 2.2
2892  **/
2893 void
2894 gtk_tree_view_column_focus_cell (GtkTreeViewColumn *tree_column,
2895                                  GtkCellRenderer   *cell)
2896 {
2897   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2898   g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
2899
2900   gtk_cell_area_set_focus_cell (tree_column->priv->cell_area, cell);
2901 }
2902
2903 void
2904 _gtk_tree_view_column_cell_set_dirty (GtkTreeViewColumn *tree_column,
2905                                       gboolean           install_handler)
2906 {
2907   GtkTreeViewColumnPrivate *priv = tree_column->priv;
2908
2909   priv->dirty = TRUE;
2910   priv->padding = 0;
2911   priv->width = 0;
2912
2913   /* Issue a manual reset on the context to have all
2914    * sizes re-requested for the context.
2915    */
2916   g_signal_handler_block (priv->cell_area_context,
2917                           priv->context_changed_signal);
2918   gtk_cell_area_context_reset (priv->cell_area_context);
2919   g_signal_handler_unblock (priv->cell_area_context,
2920                             priv->context_changed_signal);
2921
2922   if (priv->tree_view &&
2923       gtk_widget_get_realized (priv->tree_view))
2924     {
2925       _gtk_tree_view_install_mark_rows_col_dirty (GTK_TREE_VIEW (priv->tree_view), install_handler);
2926       gtk_widget_queue_resize (priv->tree_view);
2927     }
2928 }
2929
2930 gboolean
2931 _gtk_tree_view_column_cell_get_dirty (GtkTreeViewColumn  *tree_column)
2932 {
2933   return tree_column->priv->dirty;
2934 }
2935
2936 /**
2937  * gtk_tree_view_column_cell_get_position:
2938  * @tree_column: a #GtkTreeViewColumn
2939  * @cell_renderer: a #GtkCellRenderer
2940  * @x_offset: return location for the horizontal position of @cell within
2941  *            @tree_column, may be %NULL
2942  * @width: return location for the width of @cell, may be %NULL
2943  *
2944  * Obtains the horizontal position and size of a cell in a column. If the
2945  * cell is not found in the column, @start_pos and @width are not changed and
2946  * %FALSE is returned.
2947  *
2948  * Return value: %TRUE if @cell belongs to @tree_column.
2949  */
2950 gboolean
2951 gtk_tree_view_column_cell_get_position (GtkTreeViewColumn *tree_column,
2952                                         GtkCellRenderer   *cell_renderer,
2953                                         gint              *x_offset,
2954                                         gint              *width)
2955 {
2956   GtkTreeViewColumnPrivate *priv;
2957   GdkRectangle zero_cell_area = { 0, };
2958   GdkRectangle allocation;
2959
2960   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2961   g_return_val_if_fail (GTK_IS_CELL_RENDERER (cell_renderer), FALSE);
2962
2963   priv = tree_column->priv;
2964
2965   /* FIXME: Could use a boolean return value for invalid cells */
2966   gtk_cell_area_get_cell_allocation (priv->cell_area,
2967                                      priv->cell_area_context,
2968                                      priv->tree_view,
2969                                      cell_renderer,
2970                                      &zero_cell_area,
2971                                      &allocation);
2972
2973   if (x_offset)
2974     *x_offset = allocation.x;
2975   if (width)
2976     *width = allocation.width;
2977
2978   return TRUE;
2979 }
2980
2981 /**
2982  * gtk_tree_view_column_queue_resize:
2983  * @tree_column: A #GtkTreeViewColumn
2984  *
2985  * Flags the column, and the cell renderers added to this column, to have
2986  * their sizes renegotiated.
2987  *
2988  * Since: 2.8
2989  **/
2990 void
2991 gtk_tree_view_column_queue_resize (GtkTreeViewColumn *tree_column)
2992 {
2993   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2994
2995   if (tree_column->priv->tree_view)
2996     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
2997 }
2998
2999 /**
3000  * gtk_tree_view_column_get_tree_view:
3001  * @tree_column: A #GtkTreeViewColumn
3002  *
3003  * Returns the #GtkTreeView wherein @tree_column has been inserted.
3004  * If @column is currently not inserted in any tree view, %NULL is
3005  * returned.
3006  *
3007  * Return value: (transfer none): The tree view wherein @column has
3008  *     been inserted if any, %NULL otherwise.
3009  *
3010  * Since: 2.12
3011  */
3012 GtkWidget *
3013 gtk_tree_view_column_get_tree_view (GtkTreeViewColumn *tree_column)
3014 {
3015   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
3016
3017   return tree_column->priv->tree_view;
3018 }
3019
3020 /**
3021  * gtk_tree_view_column_get_button:
3022  * @tree_column: A #GtkTreeViewColumn
3023  *
3024  * Returns the button used in the treeview column header
3025  *
3026  * Return value: (transfer none): The button for the column header.
3027  *
3028  * Since: 3.0
3029  */
3030 GtkWidget *
3031 gtk_tree_view_column_get_button (GtkTreeViewColumn *tree_column)
3032 {
3033   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
3034
3035   return tree_column->priv->button;
3036 }
3037
3038 GdkWindow *
3039 _gtk_tree_view_column_get_window (GtkTreeViewColumn  *column)
3040 {
3041   return column->priv->window;
3042 }
3043
3044 void
3045 _gtk_tree_view_column_push_padding (GtkTreeViewColumn  *column,
3046                                     gint                padding)
3047 {
3048   column->priv->padding = MAX (column->priv->padding, padding);
3049 }
3050
3051 gint
3052 _gtk_tree_view_column_get_requested_width (GtkTreeViewColumn  *column)
3053 {
3054   gint requested_width;
3055
3056   gtk_cell_area_context_get_preferred_width (column->priv->cell_area_context, &requested_width, NULL);
3057
3058   return requested_width + column->priv->padding;
3059 }
3060
3061
3062 void
3063 _gtk_tree_view_column_set_resized_width (GtkTreeViewColumn  *column,
3064                                          gint                width)
3065 {
3066   column->priv->resized_width = width;
3067 }
3068
3069 gint
3070 _gtk_tree_view_column_get_resized_width (GtkTreeViewColumn  *column)
3071 {
3072   return column->priv->resized_width;
3073 }
3074
3075 void
3076 _gtk_tree_view_column_set_use_resized_width (GtkTreeViewColumn  *column,
3077                                              gboolean            use_resized_width)
3078 {
3079   column->priv->use_resized_width = use_resized_width;
3080 }
3081
3082 gboolean
3083 _gtk_tree_view_column_get_use_resized_width (GtkTreeViewColumn  *column)
3084 {
3085   return column->priv->use_resized_width;
3086 }
3087
3088 gint
3089 _gtk_tree_view_column_get_drag_x (GtkTreeViewColumn  *column)
3090 {
3091   return column->priv->drag_x;
3092 }
3093
3094 GtkCellAreaContext *
3095 _gtk_tree_view_column_get_context (GtkTreeViewColumn  *column)
3096 {
3097   return column->priv->cell_area_context;
3098 }