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   match = gtk_cell_area_get_cell_at_position (priv->cell_area,
1483                                               priv->cell_area_context,
1484                                               priv->tree_view,
1485                                               cell_area,
1486                                               x, y,
1487                                               NULL);
1488
1489   return match;
1490 }
1491
1492 /* Public Functions */
1493
1494
1495 /**
1496  * gtk_tree_view_column_new:
1497  *
1498  * Creates a new #GtkTreeViewColumn.
1499  *
1500  * Return value: A newly created #GtkTreeViewColumn.
1501  **/
1502 GtkTreeViewColumn *
1503 gtk_tree_view_column_new (void)
1504 {
1505   GtkTreeViewColumn *tree_column;
1506
1507   tree_column = g_object_new (GTK_TYPE_TREE_VIEW_COLUMN, NULL);
1508
1509   return tree_column;
1510 }
1511
1512 /**
1513  * gtk_tree_view_column_new_with_area:
1514  * @area: the #GtkCellArea that the newly created column should use to layout cells.
1515  *
1516  * Creates a new #GtkTreeViewColumn using @area to render it's cells.
1517  *
1518  * Return value: A newly created #GtkTreeViewColumn.
1519  *
1520  * Since: 3.0
1521  */
1522 GtkTreeViewColumn *
1523 gtk_tree_view_column_new_with_area (GtkCellArea *area)
1524 {
1525   GtkTreeViewColumn *tree_column;
1526
1527   tree_column = g_object_new (GTK_TYPE_TREE_VIEW_COLUMN, "cell-area", area, NULL);
1528
1529   return tree_column;
1530 }
1531
1532
1533 /**
1534  * gtk_tree_view_column_new_with_attributes:
1535  * @title: The title to set the header to.
1536  * @cell: The #GtkCellRenderer.
1537  * @Varargs: A %NULL-terminated list of attributes.
1538  *
1539  * Creates a new #GtkTreeViewColumn with a number of default values.  This is
1540  * equivalent to calling gtk_tree_view_column_set_title(),
1541  * gtk_tree_view_column_pack_start(), and
1542  * gtk_tree_view_column_set_attributes() on the newly created #GtkTreeViewColumn.
1543  *
1544  * Here's a simple example:
1545  * |[
1546  *  enum { TEXT_COLUMN, COLOR_COLUMN, N_COLUMNS };
1547  *  ...
1548  *  {
1549  *    GtkTreeViewColumn *column;
1550  *    GtkCellRenderer   *renderer = gtk_cell_renderer_text_new ();
1551  *
1552  *    column = gtk_tree_view_column_new_with_attributes ("Title",
1553  *                                                       renderer,
1554  *                                                       "text", TEXT_COLUMN,
1555  *                                                       "foreground", COLOR_COLUMN,
1556  *                                                       NULL);
1557  *  }
1558  * ]|
1559  *
1560  * Return value: A newly created #GtkTreeViewColumn.
1561  **/
1562 GtkTreeViewColumn *
1563 gtk_tree_view_column_new_with_attributes (const gchar     *title,
1564                                           GtkCellRenderer *cell,
1565                                           ...)
1566 {
1567   GtkTreeViewColumn *retval;
1568   va_list args;
1569
1570   retval = gtk_tree_view_column_new ();
1571
1572   gtk_tree_view_column_set_title (retval, title);
1573   gtk_tree_view_column_pack_start (retval, cell, TRUE);
1574
1575   va_start (args, cell);
1576   gtk_tree_view_column_set_attributesv (retval, cell, args);
1577   va_end (args);
1578
1579   return retval;
1580 }
1581
1582 /**
1583  * gtk_tree_view_column_pack_start:
1584  * @tree_column: A #GtkTreeViewColumn.
1585  * @cell: The #GtkCellRenderer.
1586  * @expand: %TRUE if @cell is to be given extra space allocated to @tree_column.
1587  *
1588  * Packs the @cell into the beginning of the column. If @expand is %FALSE, then
1589  * the @cell is allocated no more space than it needs. Any unused space is divided
1590  * evenly between cells for which @expand is %TRUE.
1591  **/
1592 void
1593 gtk_tree_view_column_pack_start (GtkTreeViewColumn *tree_column,
1594                                  GtkCellRenderer   *cell,
1595                                  gboolean           expand)
1596 {
1597   gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (tree_column), cell, expand);
1598 }
1599
1600 /**
1601  * gtk_tree_view_column_pack_end:
1602  * @tree_column: A #GtkTreeViewColumn.
1603  * @cell: The #GtkCellRenderer.
1604  * @expand: %TRUE if @cell is to be given extra space allocated to @tree_column.
1605  *
1606  * Adds the @cell to end of the column. If @expand is %FALSE, then the @cell
1607  * is allocated no more space than it needs. Any unused space is divided
1608  * evenly between cells for which @expand is %TRUE.
1609  **/
1610 void
1611 gtk_tree_view_column_pack_end (GtkTreeViewColumn  *tree_column,
1612                                GtkCellRenderer    *cell,
1613                                gboolean            expand)
1614 {
1615   gtk_cell_layout_pack_end (GTK_CELL_LAYOUT (tree_column), cell, expand);
1616 }
1617
1618 /**
1619  * gtk_tree_view_column_clear:
1620  * @tree_column: A #GtkTreeViewColumn
1621  *
1622  * Unsets all the mappings on all renderers on the @tree_column.
1623  **/
1624 void
1625 gtk_tree_view_column_clear (GtkTreeViewColumn *tree_column)
1626 {
1627   gtk_cell_layout_clear (GTK_CELL_LAYOUT (tree_column));
1628 }
1629
1630 /**
1631  * gtk_tree_view_column_add_attribute:
1632  * @tree_column: A #GtkTreeViewColumn.
1633  * @cell_renderer: the #GtkCellRenderer to set attributes on
1634  * @attribute: An attribute on the renderer
1635  * @column: The column position on the model to get the attribute from.
1636  *
1637  * Adds an attribute mapping to the list in @tree_column.  The @column is the
1638  * column of the model to get a value from, and the @attribute is the
1639  * parameter on @cell_renderer to be set from the value. So for example
1640  * if column 2 of the model contains strings, you could have the
1641  * "text" attribute of a #GtkCellRendererText get its values from
1642  * column 2.
1643  **/
1644 void
1645 gtk_tree_view_column_add_attribute (GtkTreeViewColumn *tree_column,
1646                                     GtkCellRenderer   *cell_renderer,
1647                                     const gchar       *attribute,
1648                                     gint               column)
1649 {
1650   gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (tree_column),
1651                                  cell_renderer, attribute, column);
1652 }
1653
1654 static void
1655 gtk_tree_view_column_set_attributesv (GtkTreeViewColumn *tree_column,
1656                                       GtkCellRenderer   *cell_renderer,
1657                                       va_list            args)
1658 {
1659   GtkTreeViewColumnPrivate *priv = tree_column->priv;
1660   gchar *attribute;
1661   gint column;
1662
1663   attribute = va_arg (args, gchar *);
1664
1665   gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (priv->cell_area),
1666                                     cell_renderer);
1667
1668   while (attribute != NULL)
1669     {
1670       column = va_arg (args, gint);
1671       gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (priv->cell_area),
1672                                      cell_renderer, attribute, column);
1673       attribute = va_arg (args, gchar *);
1674     }
1675 }
1676
1677 /**
1678  * gtk_tree_view_column_set_attributes:
1679  * @tree_column: A #GtkTreeViewColumn.
1680  * @cell_renderer: the #GtkCellRenderer we're setting the attributes of
1681  * @Varargs: A %NULL-terminated list of attributes.
1682  *
1683  * Sets the attributes in the list as the attributes of @tree_column.
1684  * The attributes should be in attribute/column order, as in
1685  * gtk_tree_view_column_add_attribute(). All existing attributes
1686  * are removed, and replaced with the new attributes.
1687  **/
1688 void
1689 gtk_tree_view_column_set_attributes (GtkTreeViewColumn *tree_column,
1690                                      GtkCellRenderer   *cell_renderer,
1691                                      ...)
1692 {
1693   va_list args;
1694
1695   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1696   g_return_if_fail (GTK_IS_CELL_RENDERER (cell_renderer));
1697
1698   va_start (args, cell_renderer);
1699   gtk_tree_view_column_set_attributesv (tree_column, cell_renderer, args);
1700   va_end (args);
1701 }
1702
1703
1704 /**
1705  * gtk_tree_view_column_set_cell_data_func:
1706  * @tree_column: A #GtkTreeViewColumn
1707  * @cell_renderer: A #GtkCellRenderer
1708  * @func: The #GtkTreeViewColumnFunc to use.
1709  * @func_data: The user data for @func.
1710  * @destroy: The destroy notification for @func_data
1711  *
1712  * Sets the #GtkTreeViewColumnFunc to use for the column.  This
1713  * function is used instead of the standard attributes mapping for
1714  * setting the column value, and should set the value of @tree_column's
1715  * cell renderer as appropriate.  @func may be %NULL to remove an
1716  * older one.
1717  **/
1718 void
1719 gtk_tree_view_column_set_cell_data_func (GtkTreeViewColumn   *tree_column,
1720                                          GtkCellRenderer     *cell_renderer,
1721                                          GtkTreeCellDataFunc  func,
1722                                          gpointer             func_data,
1723                                          GDestroyNotify       destroy)
1724 {
1725   gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (tree_column),
1726                                       cell_renderer,
1727                                       (GtkCellLayoutDataFunc)func,
1728                                       func_data, destroy);
1729 }
1730
1731
1732 /**
1733  * gtk_tree_view_column_clear_attributes:
1734  * @tree_column: a #GtkTreeViewColumn
1735  * @cell_renderer: a #GtkCellRenderer to clear the attribute mapping on.
1736  *
1737  * Clears all existing attributes previously set with
1738  * gtk_tree_view_column_set_attributes().
1739  **/
1740 void
1741 gtk_tree_view_column_clear_attributes (GtkTreeViewColumn *tree_column,
1742                                        GtkCellRenderer   *cell_renderer)
1743 {
1744   gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (tree_column),
1745                                     cell_renderer);
1746 }
1747
1748 /**
1749  * gtk_tree_view_column_set_spacing:
1750  * @tree_column: A #GtkTreeViewColumn.
1751  * @spacing: distance between cell renderers in pixels.
1752  *
1753  * Sets the spacing field of @tree_column, which is the number of pixels to
1754  * place between cell renderers packed into it.
1755  **/
1756 void
1757 gtk_tree_view_column_set_spacing (GtkTreeViewColumn *tree_column,
1758                                   gint               spacing)
1759 {
1760   GtkTreeViewColumnPrivate *priv;
1761
1762   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1763   g_return_if_fail (spacing >= 0);
1764
1765   priv = tree_column->priv;
1766
1767   gtk_cell_area_box_set_spacing (GTK_CELL_AREA_BOX (priv->cell_area),
1768                                  spacing);
1769   if (priv->tree_view)
1770     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
1771 }
1772
1773 /**
1774  * gtk_tree_view_column_get_spacing:
1775  * @tree_column: A #GtkTreeViewColumn.
1776  *
1777  * Returns the spacing of @tree_column.
1778  *
1779  * Return value: the spacing of @tree_column.
1780  **/
1781 gint
1782 gtk_tree_view_column_get_spacing (GtkTreeViewColumn *tree_column)
1783 {
1784   GtkTreeViewColumnPrivate *priv;
1785
1786   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
1787
1788   priv = tree_column->priv;
1789
1790   return gtk_cell_area_box_get_spacing (GTK_CELL_AREA_BOX (priv->cell_area));
1791 }
1792
1793 /* Options for manipulating the columns */
1794
1795 /**
1796  * gtk_tree_view_column_set_visible:
1797  * @tree_column: A #GtkTreeViewColumn.
1798  * @visible: %TRUE if the @tree_column is visible.
1799  *
1800  * Sets the visibility of @tree_column.
1801  **/
1802 void
1803 gtk_tree_view_column_set_visible (GtkTreeViewColumn *tree_column,
1804                                   gboolean           visible)
1805 {
1806   GtkTreeViewColumnPrivate *priv;
1807
1808   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1809
1810   priv    = tree_column->priv;
1811   visible = !! visible;
1812
1813   if (priv->visible == visible)
1814     return;
1815
1816   priv->visible = visible;
1817
1818   if (priv->visible)
1819     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
1820
1821   gtk_tree_view_column_update_button (tree_column);
1822   g_object_notify (G_OBJECT (tree_column), "visible");
1823 }
1824
1825 /**
1826  * gtk_tree_view_column_get_visible:
1827  * @tree_column: A #GtkTreeViewColumn.
1828  *
1829  * Returns %TRUE if @tree_column is visible.
1830  *
1831  * Return value: whether the column is visible or not.  If it is visible, then
1832  * the tree will show the column.
1833  **/
1834 gboolean
1835 gtk_tree_view_column_get_visible (GtkTreeViewColumn *tree_column)
1836 {
1837   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
1838
1839   return tree_column->priv->visible;
1840 }
1841
1842 /**
1843  * gtk_tree_view_column_set_resizable:
1844  * @tree_column: A #GtkTreeViewColumn
1845  * @resizable: %TRUE, if the column can be resized
1846  *
1847  * If @resizable is %TRUE, then the user can explicitly resize the column by
1848  * grabbing the outer edge of the column button.  If resizable is %TRUE and
1849  * sizing mode of the column is #GTK_TREE_VIEW_COLUMN_AUTOSIZE, then the sizing
1850  * mode is changed to #GTK_TREE_VIEW_COLUMN_GROW_ONLY.
1851  **/
1852 void
1853 gtk_tree_view_column_set_resizable (GtkTreeViewColumn *tree_column,
1854                                     gboolean           resizable)
1855 {
1856   GtkTreeViewColumnPrivate *priv;
1857
1858   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1859
1860   priv      = tree_column->priv;
1861   resizable = !! resizable;
1862
1863   if (priv->resizable == resizable)
1864     return;
1865
1866   priv->resizable = resizable;
1867
1868   if (resizable && priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
1869     gtk_tree_view_column_set_sizing (tree_column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
1870
1871   gtk_tree_view_column_update_button (tree_column);
1872
1873   g_object_notify (G_OBJECT (tree_column), "resizable");
1874 }
1875
1876 /**
1877  * gtk_tree_view_column_get_resizable:
1878  * @tree_column: A #GtkTreeViewColumn
1879  *
1880  * Returns %TRUE if the @tree_column can be resized by the end user.
1881  *
1882  * Return value: %TRUE, if the @tree_column can be resized.
1883  **/
1884 gboolean
1885 gtk_tree_view_column_get_resizable (GtkTreeViewColumn *tree_column)
1886 {
1887   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
1888
1889   return tree_column->priv->resizable;
1890 }
1891
1892
1893 /**
1894  * gtk_tree_view_column_set_sizing:
1895  * @tree_column: A #GtkTreeViewColumn.
1896  * @type: The #GtkTreeViewColumnSizing.
1897  *
1898  * Sets the growth behavior of @tree_column to @type.
1899  **/
1900 void
1901 gtk_tree_view_column_set_sizing (GtkTreeViewColumn       *tree_column,
1902                                  GtkTreeViewColumnSizing  type)
1903 {
1904   GtkTreeViewColumnPrivate *priv;
1905
1906   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
1907
1908   priv      = tree_column->priv;
1909
1910   if (type == priv->column_type)
1911     return;
1912
1913   if (type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
1914     gtk_tree_view_column_set_resizable (tree_column, FALSE);
1915
1916   priv->column_type = type;
1917
1918   gtk_tree_view_column_update_button (tree_column);
1919
1920   g_object_notify (G_OBJECT (tree_column), "sizing");
1921 }
1922
1923 /**
1924  * gtk_tree_view_column_get_sizing:
1925  * @tree_column: A #GtkTreeViewColumn.
1926  *
1927  * Returns the current type of @tree_column.
1928  *
1929  * Return value: The type of @tree_column.
1930  **/
1931 GtkTreeViewColumnSizing
1932 gtk_tree_view_column_get_sizing (GtkTreeViewColumn *tree_column)
1933 {
1934   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
1935
1936   return tree_column->priv->column_type;
1937 }
1938
1939 /**
1940  * gtk_tree_view_column_get_width:
1941  * @tree_column: A #GtkTreeViewColumn.
1942  *
1943  * Returns the current size of @tree_column in pixels.
1944  *
1945  * Return value: The current width of @tree_column.
1946  **/
1947 gint
1948 gtk_tree_view_column_get_width (GtkTreeViewColumn *tree_column)
1949 {
1950   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
1951
1952   return tree_column->priv->width;
1953 }
1954
1955 gint
1956 _gtk_tree_view_column_request_width (GtkTreeViewColumn *tree_column)
1957 {
1958   GtkTreeViewColumnPrivate *priv;
1959   gint real_requested_width;
1960
1961   priv = tree_column->priv;
1962
1963   if (priv->use_resized_width)
1964     {
1965       real_requested_width = priv->resized_width;
1966     }
1967   else if (priv->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
1968     {
1969       real_requested_width = priv->fixed_width;
1970     }
1971   else if (gtk_tree_view_get_headers_visible (GTK_TREE_VIEW (priv->tree_view)))
1972     {
1973       gint button_request;
1974       gint requested_width;
1975
1976       gtk_cell_area_context_get_preferred_width (priv->cell_area_context, &requested_width, NULL);
1977       requested_width += priv->padding;
1978
1979       gtk_widget_get_preferred_width (priv->button, &button_request, NULL);
1980       real_requested_width = MAX (requested_width, button_request);
1981     }
1982   else
1983     {
1984       gint requested_width;
1985
1986       gtk_cell_area_context_get_preferred_width (priv->cell_area_context, &requested_width, NULL);
1987       requested_width += priv->padding;
1988
1989       real_requested_width = requested_width;
1990       if (real_requested_width < 0)
1991         real_requested_width = 0;
1992     }
1993
1994   if (priv->min_width != -1)
1995     real_requested_width = MAX (real_requested_width, priv->min_width);
1996
1997   if (priv->max_width != -1)
1998     real_requested_width = MIN (real_requested_width, priv->max_width);
1999
2000   return real_requested_width;
2001 }
2002
2003 void
2004 _gtk_tree_view_column_allocate (GtkTreeViewColumn *tree_column,
2005                                 int                x_offset,
2006                                 int                width)
2007 {
2008   GtkTreeViewColumnPrivate *priv;
2009   GtkAllocation             allocation;
2010   gboolean                  rtl;
2011
2012   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2013
2014   priv = tree_column->priv;
2015
2016   priv->width = width;
2017
2018   gtk_cell_area_context_allocate (priv->cell_area_context, priv->width - priv->padding, -1);
2019
2020   allocation.x      = x_offset;
2021   allocation.y      = 0;
2022   allocation.width  = width;
2023   allocation.height = _gtk_tree_view_get_header_height (GTK_TREE_VIEW (priv->tree_view));
2024
2025   gtk_widget_size_allocate (priv->button, &allocation);
2026
2027   if (priv->window)
2028     {
2029       rtl = (gtk_widget_get_direction (priv->tree_view) == GTK_TEXT_DIR_RTL);
2030       gdk_window_move_resize (priv->window,
2031                               allocation.x + (rtl ? 0 : allocation.width) - TREE_VIEW_DRAG_WIDTH/2,
2032                               allocation.y,
2033                               TREE_VIEW_DRAG_WIDTH, allocation.height);
2034     }
2035
2036   g_object_notify (G_OBJECT (tree_column), "width");
2037 }
2038
2039 /**
2040  * gtk_tree_view_column_set_fixed_width:
2041  * @tree_column: A #GtkTreeViewColumn.
2042  * @fixed_width: The size to set @tree_column to. Must be greater than 0.
2043  *
2044  * Sets the size of the column in pixels.  This is meaningful only if the sizing
2045  * type is #GTK_TREE_VIEW_COLUMN_FIXED.  The size of the column is clamped to
2046  * the min/max width for the column.  Please note that the min/max width of the
2047  * column doesn't actually affect the "fixed_width" property of the widget, just
2048  * the actual size when displayed.
2049  **/
2050 void
2051 gtk_tree_view_column_set_fixed_width (GtkTreeViewColumn *tree_column,
2052                                       gint               fixed_width)
2053 {
2054   GtkTreeViewColumnPrivate *priv;
2055
2056   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2057   g_return_if_fail (fixed_width > 0);
2058
2059   priv = tree_column->priv;
2060
2061   priv->fixed_width = fixed_width;
2062   priv->use_resized_width = FALSE;
2063
2064   if (priv->tree_view &&
2065       gtk_widget_get_realized (priv->tree_view) &&
2066       priv->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
2067     {
2068       gtk_widget_queue_resize (priv->tree_view);
2069     }
2070
2071   g_object_notify (G_OBJECT (tree_column), "fixed-width");
2072 }
2073
2074 /**
2075  * gtk_tree_view_column_get_fixed_width:
2076  * @tree_column: a #GtkTreeViewColumn
2077  *
2078  * Gets the fixed width of the column.  This value is only meaning may not be
2079  * the actual width of the column on the screen, just what is requested.
2080  *
2081  * Return value: the fixed width of the column
2082  **/
2083 gint
2084 gtk_tree_view_column_get_fixed_width (GtkTreeViewColumn *tree_column)
2085 {
2086   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
2087
2088   return tree_column->priv->fixed_width;
2089 }
2090
2091 /**
2092  * gtk_tree_view_column_set_min_width:
2093  * @tree_column: A #GtkTreeViewColumn.
2094  * @min_width: The minimum width of the column in pixels, or -1.
2095  *
2096  * Sets the minimum width of the @tree_column.  If @min_width is -1, then the
2097  * minimum width is unset.
2098  **/
2099 void
2100 gtk_tree_view_column_set_min_width (GtkTreeViewColumn *tree_column,
2101                                     gint               min_width)
2102 {
2103   GtkTreeViewColumnPrivate *priv;
2104
2105   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2106   g_return_if_fail (min_width >= -1);
2107
2108   priv = tree_column->priv;
2109
2110   if (min_width == priv->min_width)
2111     return;
2112
2113   if (priv->visible &&
2114       priv->tree_view != NULL &&
2115       gtk_widget_get_realized (priv->tree_view))
2116     {
2117       if (min_width > priv->width)
2118         gtk_widget_queue_resize (priv->tree_view);
2119     }
2120
2121   priv->min_width = min_width;
2122   g_object_freeze_notify (G_OBJECT (tree_column));
2123   if (priv->max_width != -1 && priv->max_width < min_width)
2124     {
2125       priv->max_width = min_width;
2126       g_object_notify (G_OBJECT (tree_column), "max-width");
2127     }
2128   g_object_notify (G_OBJECT (tree_column), "min-width");
2129   g_object_thaw_notify (G_OBJECT (tree_column));
2130
2131   if (priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2132     _gtk_tree_view_column_autosize (GTK_TREE_VIEW (priv->tree_view),
2133                                     tree_column);
2134 }
2135
2136 /**
2137  * gtk_tree_view_column_get_min_width:
2138  * @tree_column: A #GtkTreeViewColumn.
2139  *
2140  * Returns the minimum width in pixels of the @tree_column, or -1 if no minimum
2141  * width is set.
2142  *
2143  * Return value: The minimum width of the @tree_column.
2144  **/
2145 gint
2146 gtk_tree_view_column_get_min_width (GtkTreeViewColumn *tree_column)
2147 {
2148   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), -1);
2149
2150   return tree_column->priv->min_width;
2151 }
2152
2153 /**
2154  * gtk_tree_view_column_set_max_width:
2155  * @tree_column: A #GtkTreeViewColumn.
2156  * @max_width: The maximum width of the column in pixels, or -1.
2157  *
2158  * Sets the maximum width of the @tree_column.  If @max_width is -1, then the
2159  * maximum width is unset.  Note, the column can actually be wider than max
2160  * width if it's the last column in a view.  In this case, the column expands to
2161  * fill any extra space.
2162  **/
2163 void
2164 gtk_tree_view_column_set_max_width (GtkTreeViewColumn *tree_column,
2165                                     gint               max_width)
2166 {
2167   GtkTreeViewColumnPrivate *priv;
2168
2169   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2170   g_return_if_fail (max_width >= -1);
2171
2172   priv = tree_column->priv;
2173
2174   if (max_width == priv->max_width)
2175     return;
2176
2177   if (priv->visible &&
2178       priv->tree_view != NULL &&
2179       gtk_widget_get_realized (priv->tree_view))
2180     {
2181       if (max_width != -1 && max_width < priv->width)
2182         gtk_widget_queue_resize (priv->tree_view);
2183     }
2184
2185   priv->max_width = max_width;
2186   g_object_freeze_notify (G_OBJECT (tree_column));
2187   if (max_width != -1 && max_width < priv->min_width)
2188     {
2189       priv->min_width = max_width;
2190       g_object_notify (G_OBJECT (tree_column), "min-width");
2191     }
2192   g_object_notify (G_OBJECT (tree_column), "max-width");
2193   g_object_thaw_notify (G_OBJECT (tree_column));
2194
2195   if (priv->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
2196     _gtk_tree_view_column_autosize (GTK_TREE_VIEW (priv->tree_view),
2197                                     tree_column);
2198 }
2199
2200 /**
2201  * gtk_tree_view_column_get_max_width:
2202  * @tree_column: A #GtkTreeViewColumn.
2203  *
2204  * Returns the maximum width in pixels of the @tree_column, or -1 if no maximum
2205  * width is set.
2206  *
2207  * Return value: The maximum width of the @tree_column.
2208  **/
2209 gint
2210 gtk_tree_view_column_get_max_width (GtkTreeViewColumn *tree_column)
2211 {
2212   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), -1);
2213
2214   return tree_column->priv->max_width;
2215 }
2216
2217 /**
2218  * gtk_tree_view_column_clicked:
2219  * @tree_column: a #GtkTreeViewColumn
2220  *
2221  * Emits the "clicked" signal on the column.  This function will only work if
2222  * @tree_column is clickable.
2223  **/
2224 void
2225 gtk_tree_view_column_clicked (GtkTreeViewColumn *tree_column)
2226 {
2227   GtkTreeViewColumnPrivate *priv;
2228
2229   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2230
2231   priv = tree_column->priv;
2232
2233   if (priv->visible &&
2234       priv->button &&
2235       priv->clickable)
2236     gtk_button_clicked (GTK_BUTTON (priv->button));
2237 }
2238
2239 /**
2240  * gtk_tree_view_column_set_title:
2241  * @tree_column: A #GtkTreeViewColumn.
2242  * @title: The title of the @tree_column.
2243  *
2244  * Sets the title of the @tree_column.  If a custom widget has been set, then
2245  * this value is ignored.
2246  **/
2247 void
2248 gtk_tree_view_column_set_title (GtkTreeViewColumn *tree_column,
2249                                 const gchar       *title)
2250 {
2251   GtkTreeViewColumnPrivate *priv;
2252   gchar                    *new_title;
2253
2254   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2255
2256   priv = tree_column->priv;
2257
2258   new_title = g_strdup (title);
2259   g_free (priv->title);
2260   priv->title = new_title;
2261
2262   gtk_tree_view_column_update_button (tree_column);
2263   g_object_notify (G_OBJECT (tree_column), "title");
2264 }
2265
2266 /**
2267  * gtk_tree_view_column_get_title:
2268  * @tree_column: A #GtkTreeViewColumn.
2269  *
2270  * Returns the title of the widget.
2271  *
2272  * Return value: the title of the column. This string should not be
2273  * modified or freed.
2274  **/
2275 G_CONST_RETURN gchar *
2276 gtk_tree_view_column_get_title (GtkTreeViewColumn *tree_column)
2277 {
2278   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
2279
2280   return tree_column->priv->title;
2281 }
2282
2283 /**
2284  * gtk_tree_view_column_set_expand:
2285  * @tree_column: A #GtkTreeViewColumn
2286  * @expand: %TRUE if the column should take available extra space, %FALSE if not
2287  *
2288  * Sets the column to take available extra space.  This space is shared equally
2289  * amongst all columns that have the expand set to %TRUE.  If no column has this
2290  * option set, then the last column gets all extra space.  By default, every
2291  * column is created with this %FALSE.
2292  *
2293  * Since: 2.4
2294  **/
2295 void
2296 gtk_tree_view_column_set_expand (GtkTreeViewColumn *tree_column,
2297                                  gboolean           expand)
2298 {
2299   GtkTreeViewColumnPrivate *priv;
2300
2301   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2302
2303   priv = tree_column->priv;
2304
2305   expand = expand?TRUE:FALSE;
2306   if (priv->expand == expand)
2307     return;
2308   priv->expand = expand;
2309
2310   if (priv->visible &&
2311       priv->tree_view != NULL &&
2312       gtk_widget_get_realized (priv->tree_view))
2313     {
2314       /* We want to continue using the original width of the
2315        * column that includes additional space added by the user
2316        * resizing the columns and possibly extra (expanded) space, which
2317        * are not included in the resized width.
2318        */
2319       priv->use_resized_width = FALSE;
2320
2321       gtk_widget_queue_resize (priv->tree_view);
2322     }
2323
2324   g_object_notify (G_OBJECT (tree_column), "expand");
2325 }
2326
2327 /**
2328  * gtk_tree_view_column_get_expand:
2329  * @tree_column: a #GtkTreeViewColumn
2330  *
2331  * Return %TRUE if the column expands to take any available space.
2332  *
2333  * Return value: %TRUE, if the column expands
2334  *
2335  * Since: 2.4
2336  **/
2337 gboolean
2338 gtk_tree_view_column_get_expand (GtkTreeViewColumn *tree_column)
2339 {
2340   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2341
2342   return tree_column->priv->expand;
2343 }
2344
2345 /**
2346  * gtk_tree_view_column_set_clickable:
2347  * @tree_column: A #GtkTreeViewColumn.
2348  * @clickable: %TRUE if the header is active.
2349  *
2350  * Sets the header to be active if @active is %TRUE.  When the header is active,
2351  * then it can take keyboard focus, and can be clicked.
2352  **/
2353 void
2354 gtk_tree_view_column_set_clickable (GtkTreeViewColumn *tree_column,
2355                                     gboolean           clickable)
2356 {
2357   GtkTreeViewColumnPrivate *priv;
2358
2359   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2360
2361   priv = tree_column->priv;
2362
2363   clickable = !! clickable;
2364   if (priv->clickable == clickable)
2365     return;
2366
2367   priv->clickable = clickable;
2368   gtk_tree_view_column_update_button (tree_column);
2369   g_object_notify (G_OBJECT (tree_column), "clickable");
2370 }
2371
2372 /**
2373  * gtk_tree_view_column_get_clickable:
2374  * @tree_column: a #GtkTreeViewColumn
2375  *
2376  * Returns %TRUE if the user can click on the header for the column.
2377  *
2378  * Return value: %TRUE if user can click the column header.
2379  **/
2380 gboolean
2381 gtk_tree_view_column_get_clickable (GtkTreeViewColumn *tree_column)
2382 {
2383   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2384
2385   return tree_column->priv->clickable;
2386 }
2387
2388 /**
2389  * gtk_tree_view_column_set_widget:
2390  * @tree_column: A #GtkTreeViewColumn.
2391  * @widget: (allow-none): A child #GtkWidget, or %NULL.
2392  *
2393  * Sets the widget in the header to be @widget.  If widget is %NULL, then the
2394  * header button is set with a #GtkLabel set to the title of @tree_column.
2395  **/
2396 void
2397 gtk_tree_view_column_set_widget (GtkTreeViewColumn *tree_column,
2398                                  GtkWidget         *widget)
2399 {
2400   GtkTreeViewColumnPrivate *priv;
2401
2402   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2403   g_return_if_fail (widget == NULL || GTK_IS_WIDGET (widget));
2404
2405   priv = tree_column->priv;
2406
2407   if (widget)
2408     g_object_ref_sink (widget);
2409
2410   if (priv->child)
2411     g_object_unref (priv->child);
2412
2413   priv->child = widget;
2414   gtk_tree_view_column_update_button (tree_column);
2415   g_object_notify (G_OBJECT (tree_column), "widget");
2416 }
2417
2418 /**
2419  * gtk_tree_view_column_get_widget:
2420  * @tree_column: A #GtkTreeViewColumn.
2421  *
2422  * Returns the #GtkWidget in the button on the column header.
2423  * If a custom widget has not been set then %NULL is returned.
2424  *
2425  * Return value: (transfer none): The #GtkWidget in the column
2426  *     header, or %NULL
2427  **/
2428 GtkWidget *
2429 gtk_tree_view_column_get_widget (GtkTreeViewColumn *tree_column)
2430 {
2431   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
2432
2433   return tree_column->priv->child;
2434 }
2435
2436 /**
2437  * gtk_tree_view_column_set_alignment:
2438  * @tree_column: A #GtkTreeViewColumn.
2439  * @xalign: The alignment, which is between [0.0 and 1.0] inclusive.
2440  *
2441  * Sets the alignment of the title or custom widget inside the column header.
2442  * The alignment determines its location inside the button -- 0.0 for left, 0.5
2443  * for center, 1.0 for right.
2444  **/
2445 void
2446 gtk_tree_view_column_set_alignment (GtkTreeViewColumn *tree_column,
2447                                     gfloat             xalign)
2448 {
2449   GtkTreeViewColumnPrivate *priv;
2450
2451   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2452
2453   priv = tree_column->priv;
2454
2455   xalign = CLAMP (xalign, 0.0, 1.0);
2456
2457   if (priv->xalign == xalign)
2458     return;
2459
2460   priv->xalign = xalign;
2461   gtk_tree_view_column_update_button (tree_column);
2462   g_object_notify (G_OBJECT (tree_column), "alignment");
2463 }
2464
2465 /**
2466  * gtk_tree_view_column_get_alignment:
2467  * @tree_column: A #GtkTreeViewColumn.
2468  *
2469  * Returns the current x alignment of @tree_column.  This value can range
2470  * between 0.0 and 1.0.
2471  *
2472  * Return value: The current alignent of @tree_column.
2473  **/
2474 gfloat
2475 gtk_tree_view_column_get_alignment (GtkTreeViewColumn *tree_column)
2476 {
2477   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0.5);
2478
2479   return tree_column->priv->xalign;
2480 }
2481
2482 /**
2483  * gtk_tree_view_column_set_reorderable:
2484  * @tree_column: A #GtkTreeViewColumn
2485  * @reorderable: %TRUE, if the column can be reordered.
2486  *
2487  * If @reorderable is %TRUE, then the column can be reordered by the end user
2488  * dragging the header.
2489  **/
2490 void
2491 gtk_tree_view_column_set_reorderable (GtkTreeViewColumn *tree_column,
2492                                       gboolean           reorderable)
2493 {
2494   GtkTreeViewColumnPrivate *priv;
2495
2496   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2497
2498   priv = tree_column->priv;
2499
2500   /*  if (reorderable)
2501       gtk_tree_view_column_set_clickable (tree_column, TRUE);*/
2502
2503   if (priv->reorderable == (reorderable?TRUE:FALSE))
2504     return;
2505
2506   priv->reorderable = (reorderable?TRUE:FALSE);
2507   gtk_tree_view_column_update_button (tree_column);
2508   g_object_notify (G_OBJECT (tree_column), "reorderable");
2509 }
2510
2511 /**
2512  * gtk_tree_view_column_get_reorderable:
2513  * @tree_column: A #GtkTreeViewColumn
2514  *
2515  * Returns %TRUE if the @tree_column can be reordered by the user.
2516  *
2517  * Return value: %TRUE if the @tree_column can be reordered by the user.
2518  **/
2519 gboolean
2520 gtk_tree_view_column_get_reorderable (GtkTreeViewColumn *tree_column)
2521 {
2522   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2523
2524   return tree_column->priv->reorderable;
2525 }
2526
2527
2528 /**
2529  * gtk_tree_view_column_set_sort_column_id:
2530  * @tree_column: a #GtkTreeViewColumn
2531  * @sort_column_id: The @sort_column_id of the model to sort on.
2532  *
2533  * Sets the logical @sort_column_id that this column sorts on when this column
2534  * is selected for sorting.  Doing so makes the column header clickable.
2535  **/
2536 void
2537 gtk_tree_view_column_set_sort_column_id (GtkTreeViewColumn *tree_column,
2538                                          gint               sort_column_id)
2539 {
2540   GtkTreeViewColumnPrivate *priv;
2541
2542   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2543   g_return_if_fail (sort_column_id >= -1);
2544
2545   priv = tree_column->priv;
2546
2547   if (priv->sort_column_id == sort_column_id)
2548     return;
2549
2550   priv->sort_column_id = sort_column_id;
2551
2552   /* Handle unsetting the id */
2553   if (sort_column_id == -1)
2554     {
2555       GtkTreeModel *model = gtk_tree_view_get_model (GTK_TREE_VIEW (priv->tree_view));
2556
2557       if (priv->sort_clicked_signal)
2558         {
2559           g_signal_handler_disconnect (tree_column, priv->sort_clicked_signal);
2560           priv->sort_clicked_signal = 0;
2561         }
2562
2563       if (priv->sort_column_changed_signal)
2564         {
2565           g_signal_handler_disconnect (model, priv->sort_column_changed_signal);
2566           priv->sort_column_changed_signal = 0;
2567         }
2568
2569       gtk_tree_view_column_set_sort_order (tree_column, GTK_SORT_ASCENDING);
2570       gtk_tree_view_column_set_sort_indicator (tree_column, FALSE);
2571       gtk_tree_view_column_set_clickable (tree_column, FALSE);
2572       g_object_notify (G_OBJECT (tree_column), "sort-column-id");
2573       return;
2574     }
2575
2576   gtk_tree_view_column_set_clickable (tree_column, TRUE);
2577
2578   if (! priv->sort_clicked_signal)
2579     priv->sort_clicked_signal = g_signal_connect (tree_column,
2580                                                   "clicked",
2581                                                   G_CALLBACK (gtk_tree_view_column_sort),
2582                                                   NULL);
2583
2584   gtk_tree_view_column_setup_sort_column_id_callback (tree_column);
2585   g_object_notify (G_OBJECT (tree_column), "sort-column-id");
2586 }
2587
2588 /**
2589  * gtk_tree_view_column_get_sort_column_id:
2590  * @tree_column: a #GtkTreeViewColumn
2591  *
2592  * Gets the logical @sort_column_id that the model sorts on when this
2593  * column is selected for sorting.
2594  * See gtk_tree_view_column_set_sort_column_id().
2595  *
2596  * Return value: the current @sort_column_id for this column, or -1 if
2597  *               this column can't be used for sorting.
2598  **/
2599 gint
2600 gtk_tree_view_column_get_sort_column_id (GtkTreeViewColumn *tree_column)
2601 {
2602   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
2603
2604   return tree_column->priv->sort_column_id;
2605 }
2606
2607 /**
2608  * gtk_tree_view_column_set_sort_indicator:
2609  * @tree_column: a #GtkTreeViewColumn
2610  * @setting: %TRUE to display an indicator that the column is sorted
2611  *
2612  * Call this function with a @setting of %TRUE to display an arrow in
2613  * the header button indicating the column is sorted. Call
2614  * gtk_tree_view_column_set_sort_order() to change the direction of
2615  * the arrow.
2616  *
2617  **/
2618 void
2619 gtk_tree_view_column_set_sort_indicator (GtkTreeViewColumn     *tree_column,
2620                                          gboolean               setting)
2621 {
2622   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2623
2624   setting = setting != FALSE;
2625
2626   if (setting == tree_column->priv->show_sort_indicator)
2627     return;
2628
2629   tree_column->priv->show_sort_indicator = setting;
2630   gtk_tree_view_column_update_button (tree_column);
2631   g_object_notify (G_OBJECT (tree_column), "sort-indicator");
2632 }
2633
2634 /**
2635  * gtk_tree_view_column_get_sort_indicator:
2636  * @tree_column: a #GtkTreeViewColumn
2637  *
2638  * Gets the value set by gtk_tree_view_column_set_sort_indicator().
2639  *
2640  * Return value: whether the sort indicator arrow is displayed
2641  **/
2642 gboolean
2643 gtk_tree_view_column_get_sort_indicator  (GtkTreeViewColumn     *tree_column)
2644 {
2645   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2646
2647   return tree_column->priv->show_sort_indicator;
2648 }
2649
2650 /**
2651  * gtk_tree_view_column_set_sort_order:
2652  * @tree_column: a #GtkTreeViewColumn
2653  * @order: sort order that the sort indicator should indicate
2654  *
2655  * Changes the appearance of the sort indicator.
2656  *
2657  * This <emphasis>does not</emphasis> actually sort the model.  Use
2658  * gtk_tree_view_column_set_sort_column_id() if you want automatic sorting
2659  * support.  This function is primarily for custom sorting behavior, and should
2660  * be used in conjunction with gtk_tree_sortable_set_sort_column() to do
2661  * that. For custom models, the mechanism will vary.
2662  *
2663  * The sort indicator changes direction to indicate normal sort or reverse sort.
2664  * Note that you must have the sort indicator enabled to see anything when
2665  * calling this function; see gtk_tree_view_column_set_sort_indicator().
2666  **/
2667 void
2668 gtk_tree_view_column_set_sort_order      (GtkTreeViewColumn     *tree_column,
2669                                           GtkSortType            order)
2670 {
2671   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2672
2673   if (order == tree_column->priv->sort_order)
2674     return;
2675
2676   tree_column->priv->sort_order = order;
2677   gtk_tree_view_column_update_button (tree_column);
2678   g_object_notify (G_OBJECT (tree_column), "sort-order");
2679 }
2680
2681 /**
2682  * gtk_tree_view_column_get_sort_order:
2683  * @tree_column: a #GtkTreeViewColumn
2684  *
2685  * Gets the value set by gtk_tree_view_column_set_sort_order().
2686  *
2687  * Return value: the sort order the sort indicator is indicating
2688  **/
2689 GtkSortType
2690 gtk_tree_view_column_get_sort_order      (GtkTreeViewColumn     *tree_column)
2691 {
2692   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), 0);
2693
2694   return tree_column->priv->sort_order;
2695 }
2696
2697 /**
2698  * gtk_tree_view_column_cell_set_cell_data:
2699  * @tree_column: A #GtkTreeViewColumn.
2700  * @tree_model: The #GtkTreeModel to to get the cell renderers attributes from.
2701  * @iter: The #GtkTreeIter to to get the cell renderer's attributes from.
2702  * @is_expander: %TRUE, if the row has children
2703  * @is_expanded: %TRUE, if the row has visible children
2704  *
2705  * Sets the cell renderer based on the @tree_model and @iter.  That is, for
2706  * every attribute mapping in @tree_column, it will get a value from the set
2707  * column on the @iter, and use that value to set the attribute on the cell
2708  * renderer.  This is used primarily by the #GtkTreeView.
2709  **/
2710 void
2711 gtk_tree_view_column_cell_set_cell_data (GtkTreeViewColumn *tree_column,
2712                                          GtkTreeModel      *tree_model,
2713                                          GtkTreeIter       *iter,
2714                                          gboolean           is_expander,
2715                                          gboolean           is_expanded)
2716 {
2717   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2718
2719   if (tree_model == NULL)
2720     return;
2721
2722   gtk_cell_area_apply_attributes (tree_column->priv->cell_area, tree_model, iter,
2723                                   is_expander, is_expanded);
2724 }
2725
2726 /**
2727  * gtk_tree_view_column_cell_get_size:
2728  * @tree_column: A #GtkTreeViewColumn.
2729  * @cell_area: (allow-none): The area a cell in the column will be allocated, or %NULL
2730  * @x_offset: (allow-none): location to return x offset of a cell relative to @cell_area, or %NULL
2731  * @y_offset: (allow-none): location to return y offset of a cell relative to @cell_area, or %NULL
2732  * @width: (allow-none): location to return width needed to render a cell, or %NULL
2733  * @height: (allow-none): location to return height needed to render a cell, or %NULL
2734  *
2735  * Obtains the width and height needed to render the column.  This is used
2736  * primarily by the #GtkTreeView.
2737  **/
2738 void
2739 gtk_tree_view_column_cell_get_size (GtkTreeViewColumn  *tree_column,
2740                                     const GdkRectangle *cell_area,
2741                                     gint               *x_offset,
2742                                     gint               *y_offset,
2743                                     gint               *width,
2744                                     gint               *height)
2745 {
2746   GtkTreeViewColumnPrivate *priv;
2747   gint min_width = 0, min_height = 0;
2748
2749   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2750
2751   priv = tree_column->priv;
2752
2753   g_signal_handler_block (priv->cell_area_context,
2754                           priv->context_changed_signal);
2755
2756   gtk_cell_area_get_preferred_width (priv->cell_area,
2757                                      priv->cell_area_context,
2758                                      priv->tree_view,
2759                                      NULL, NULL);
2760
2761   gtk_cell_area_context_get_preferred_width (priv->cell_area_context, &min_width, NULL);
2762
2763   gtk_cell_area_get_preferred_height_for_width (priv->cell_area,
2764                                                 priv->cell_area_context,
2765                                                 priv->tree_view,
2766                                                 min_width,
2767                                                 &min_height,
2768                                                 NULL);
2769
2770   g_signal_handler_unblock (priv->cell_area_context,
2771                             priv->context_changed_signal);
2772
2773
2774   if (height)
2775     * height = min_height;
2776   if (width)
2777     * width = min_width;
2778
2779 }
2780
2781 /**
2782  * gtk_tree_view_column_cell_render:
2783  * @tree_column: A #GtkTreeViewColumn.
2784  * @cr: cairo context to draw to
2785  * @background_area: entire cell area (including tree expanders and maybe padding on the sides)
2786  * @cell_area: area normally rendered by a cell renderer
2787  * @flags: flags that affect rendering
2788  *
2789  * Renders the cell contained by #tree_column. This is used primarily by the
2790  * #GtkTreeView.
2791  **/
2792 void
2793 _gtk_tree_view_column_cell_render (GtkTreeViewColumn  *tree_column,
2794                                    cairo_t            *cr,
2795                                    const GdkRectangle *background_area,
2796                                    const GdkRectangle *cell_area,
2797                                    guint               flags,
2798                                    gboolean            draw_focus)
2799 {
2800   GtkTreeViewColumnPrivate *priv;
2801
2802   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2803   g_return_if_fail (cr != NULL);
2804   g_return_if_fail (background_area != NULL);
2805   g_return_if_fail (cell_area != NULL);
2806
2807   priv = tree_column->priv;
2808
2809   cairo_save (cr);
2810
2811   gtk_cell_area_render (priv->cell_area, priv->cell_area_context,
2812                         priv->tree_view, cr,
2813                         background_area, cell_area, flags,
2814                         draw_focus);
2815
2816   cairo_restore (cr);
2817 }
2818
2819 gboolean
2820 _gtk_tree_view_column_cell_event (GtkTreeViewColumn  *tree_column,
2821                                   GdkEvent           *event,
2822                                   const GdkRectangle *cell_area,
2823                                   guint               flags)
2824 {
2825   GtkTreeViewColumnPrivate *priv;
2826
2827   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2828
2829   priv = tree_column->priv;
2830
2831   return gtk_cell_area_event (priv->cell_area,
2832                               priv->cell_area_context,
2833                               priv->tree_view,
2834                               event,
2835                               cell_area,
2836                               flags);
2837 }
2838
2839 /**
2840  * gtk_tree_view_column_cell_is_visible:
2841  * @tree_column: A #GtkTreeViewColumn
2842  *
2843  * Returns %TRUE if any of the cells packed into the @tree_column are visible.
2844  * For this to be meaningful, you must first initialize the cells with
2845  * gtk_tree_view_column_cell_set_cell_data()
2846  *
2847  * Return value: %TRUE, if any of the cells packed into the @tree_column are currently visible
2848  **/
2849 gboolean
2850 gtk_tree_view_column_cell_is_visible (GtkTreeViewColumn *tree_column)
2851 {
2852   GList *list;
2853   GList *cells;
2854   GtkTreeViewColumnPrivate *priv;
2855
2856   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2857
2858   priv = tree_column->priv;
2859
2860   cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (priv->cell_area));
2861   for (list = cells; list; list = list->next)
2862     {
2863       if (gtk_cell_renderer_get_visible (list->data))
2864         {
2865           g_list_free (cells);
2866           return TRUE;
2867         }
2868     }
2869
2870   g_list_free (cells);
2871
2872   return FALSE;
2873 }
2874
2875 /**
2876  * gtk_tree_view_column_focus_cell:
2877  * @tree_column: A #GtkTreeViewColumn
2878  * @cell: A #GtkCellRenderer
2879  *
2880  * Sets the current keyboard focus to be at @cell, if the column contains
2881  * 2 or more editable and activatable cells.
2882  *
2883  * Since: 2.2
2884  **/
2885 void
2886 gtk_tree_view_column_focus_cell (GtkTreeViewColumn *tree_column,
2887                                  GtkCellRenderer   *cell)
2888 {
2889   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2890   g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
2891
2892   gtk_cell_area_set_focus_cell (tree_column->priv->cell_area, cell);
2893 }
2894
2895 void
2896 _gtk_tree_view_column_cell_set_dirty (GtkTreeViewColumn *tree_column,
2897                                       gboolean           install_handler)
2898 {
2899   GtkTreeViewColumnPrivate *priv = tree_column->priv;
2900
2901   priv->dirty = TRUE;
2902   priv->padding = 0;
2903   priv->width = 0;
2904
2905   /* Issue a manual reset on the context to have all
2906    * sizes re-requested for the context.
2907    */
2908   g_signal_handler_block (priv->cell_area_context,
2909                           priv->context_changed_signal);
2910   gtk_cell_area_context_reset (priv->cell_area_context);
2911   g_signal_handler_unblock (priv->cell_area_context,
2912                             priv->context_changed_signal);
2913
2914   if (priv->tree_view &&
2915       gtk_widget_get_realized (priv->tree_view))
2916     {
2917       _gtk_tree_view_install_mark_rows_col_dirty (GTK_TREE_VIEW (priv->tree_view), install_handler);
2918       gtk_widget_queue_resize (priv->tree_view);
2919     }
2920 }
2921
2922 gboolean
2923 _gtk_tree_view_column_cell_get_dirty (GtkTreeViewColumn  *tree_column)
2924 {
2925   return tree_column->priv->dirty;
2926 }
2927
2928 /**
2929  * gtk_tree_view_column_cell_get_position:
2930  * @tree_column: a #GtkTreeViewColumn
2931  * @cell_renderer: a #GtkCellRenderer
2932  * @x_offset: return location for the horizontal position of @cell within
2933  *            @tree_column, may be %NULL
2934  * @width: return location for the width of @cell, may be %NULL
2935  *
2936  * Obtains the horizontal position and size of a cell in a column. If the
2937  * cell is not found in the column, @start_pos and @width are not changed and
2938  * %FALSE is returned.
2939  *
2940  * Return value: %TRUE if @cell belongs to @tree_column.
2941  */
2942 gboolean
2943 gtk_tree_view_column_cell_get_position (GtkTreeViewColumn *tree_column,
2944                                         GtkCellRenderer   *cell_renderer,
2945                                         gint              *x_offset,
2946                                         gint              *width)
2947 {
2948   GtkTreeViewColumnPrivate *priv;
2949   GdkRectangle zero_cell_area = { 0, };
2950   GdkRectangle allocation;
2951
2952   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), FALSE);
2953   g_return_val_if_fail (GTK_IS_CELL_RENDERER (cell_renderer), FALSE);
2954
2955   priv = tree_column->priv;
2956
2957   /* FIXME: Could use a boolean return value for invalid cells */
2958   gtk_cell_area_get_cell_allocation (priv->cell_area,
2959                                      priv->cell_area_context,
2960                                      priv->tree_view,
2961                                      cell_renderer,
2962                                      &zero_cell_area,
2963                                      &allocation);
2964
2965   if (x_offset)
2966     *x_offset = allocation.x;
2967   if (width)
2968     *width = allocation.width;
2969
2970   return TRUE;
2971 }
2972
2973 /**
2974  * gtk_tree_view_column_queue_resize:
2975  * @tree_column: A #GtkTreeViewColumn
2976  *
2977  * Flags the column, and the cell renderers added to this column, to have
2978  * their sizes renegotiated.
2979  *
2980  * Since: 2.8
2981  **/
2982 void
2983 gtk_tree_view_column_queue_resize (GtkTreeViewColumn *tree_column)
2984 {
2985   g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column));
2986
2987   if (tree_column->priv->tree_view)
2988     _gtk_tree_view_column_cell_set_dirty (tree_column, TRUE);
2989 }
2990
2991 /**
2992  * gtk_tree_view_column_get_tree_view:
2993  * @tree_column: A #GtkTreeViewColumn
2994  *
2995  * Returns the #GtkTreeView wherein @tree_column has been inserted.
2996  * If @column is currently not inserted in any tree view, %NULL is
2997  * returned.
2998  *
2999  * Return value: (transfer none): The tree view wherein @column has
3000  *     been inserted if any, %NULL otherwise.
3001  *
3002  * Since: 2.12
3003  */
3004 GtkWidget *
3005 gtk_tree_view_column_get_tree_view (GtkTreeViewColumn *tree_column)
3006 {
3007   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
3008
3009   return tree_column->priv->tree_view;
3010 }
3011
3012 /**
3013  * gtk_tree_view_column_get_button:
3014  * @tree_column: A #GtkTreeViewColumn
3015  *
3016  * Returns the button used in the treeview column header
3017  *
3018  * Return value: (transfer none): The button for the column header.
3019  *
3020  * Since: 3.0
3021  */
3022 GtkWidget *
3023 gtk_tree_view_column_get_button (GtkTreeViewColumn *tree_column)
3024 {
3025   g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (tree_column), NULL);
3026
3027   return tree_column->priv->button;
3028 }
3029
3030 GdkWindow *
3031 _gtk_tree_view_column_get_window (GtkTreeViewColumn  *column)
3032 {
3033   return column->priv->window;
3034 }
3035
3036 void
3037 _gtk_tree_view_column_push_padding (GtkTreeViewColumn  *column,
3038                                     gint                padding)
3039 {
3040   column->priv->padding = MAX (column->priv->padding, padding);
3041 }
3042
3043 gint
3044 _gtk_tree_view_column_get_requested_width (GtkTreeViewColumn  *column)
3045 {
3046   gint requested_width;
3047
3048   gtk_cell_area_context_get_preferred_width (column->priv->cell_area_context, &requested_width, NULL);
3049
3050   return requested_width + column->priv->padding;
3051 }
3052
3053
3054 void
3055 _gtk_tree_view_column_set_resized_width (GtkTreeViewColumn  *column,
3056                                          gint                width)
3057 {
3058   column->priv->resized_width = width;
3059 }
3060
3061 gint
3062 _gtk_tree_view_column_get_resized_width (GtkTreeViewColumn  *column)
3063 {
3064   return column->priv->resized_width;
3065 }
3066
3067 void
3068 _gtk_tree_view_column_set_use_resized_width (GtkTreeViewColumn  *column,
3069                                              gboolean            use_resized_width)
3070 {
3071   column->priv->use_resized_width = use_resized_width;
3072 }
3073
3074 gboolean
3075 _gtk_tree_view_column_get_use_resized_width (GtkTreeViewColumn  *column)
3076 {
3077   return column->priv->use_resized_width;
3078 }
3079
3080 gint
3081 _gtk_tree_view_column_get_drag_x (GtkTreeViewColumn  *column)
3082 {
3083   return column->priv->drag_x;
3084 }
3085
3086 GtkCellAreaContext *
3087 _gtk_tree_view_column_get_context (GtkTreeViewColumn  *column)
3088 {
3089   return column->priv->cell_area_context;
3090 }