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

   1 /* gtkellview.c
   2  * Copyright (C) 2002, 2003  Kristian Rietveld <kris@gtk.org>
   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 #include <string.h>
  22 #include "gtkcellview.h"
  23 #include "gtkcelllayout.h"
  24 #include "gtkcellareabox.h"
  25 #include "gtkintl.h"
  26 #include "gtkcellrenderertext.h"
  27 #include "gtkcellrendererpixbuf.h"
  28 #include "gtkprivate.h"
  29 #include "gtkorientable.h"
  30 #include <gobject/gmarshal.h>
  31 #include "gtkbuildable.h"
  32
  33
  34 /**
  35  * SECTION:gtkcellview
  36  * @Short_description: A widget displaying a single row of a GtkTreeModel
  37  * @Title: GtkCellView
  38  *
  39  * A #GtkCellView displays a single row of a #GtkTreeModel using a #GtkCellArea
  40  * and #GtkCellAreaContext. A #GtkCellAreaContext can be provided to the
  41  * #GtkCellView at construction time in order to keep the cellview in context
  42  * of a group of cell views, this ensures that the renderers displayed will
  43  * be properly aligned with eachother (like the aligned cells in the menus
  44  * of #GtkComboBox).
  45  *
  46  * #GtkCellView is #GtkOrientable in order to decide in which orientation
  47  * the underlying #GtkCellAreaContext should be allocated. Taking the #GtkComboBox
  48  * menu as an example, cellviews should be oriented horizontally if the menus are
  49  * listed top-to-bottom and thus all share the same width but may have separate
  50  * individual heights (left-to-right menus should be allocated vertically since
  51  * they all share the same height but may have variable widths).
  52  */
  53
  54 static GObject    *gtk_cell_view_constructor              (GType                  type,
  55                                                            guint                  n_construct_properties,
  56                                                            GObjectConstructParam *construct_properties);
  57 static void        gtk_cell_view_get_property             (GObject           *object,
  58                                                            guint             param_id,
  59                                                            GValue           *value,
  60                                                            GParamSpec       *pspec);
  61 static void        gtk_cell_view_set_property             (GObject          *object,
  62                                                            guint             param_id,
  63                                                            const GValue     *value,
  64                                                            GParamSpec       *pspec);
  65 static void        gtk_cell_view_finalize                 (GObject          *object);
  66 static void        gtk_cell_view_dispose                  (GObject          *object);
  67 static void        gtk_cell_view_size_allocate            (GtkWidget        *widget,
  68                                                            GtkAllocation    *allocation);
  69 static gboolean    gtk_cell_view_draw                     (GtkWidget        *widget,
  70                                                            cairo_t          *cr);
  71 static void        gtk_cell_view_set_value                (GtkCellView     *cell_view,
  72                                                            GtkCellRenderer *renderer,
  73                                                            gchar           *property,
  74                                                            GValue          *value);
  75 static void        gtk_cell_view_set_cell_data            (GtkCellView      *cell_view);
  76
  77 /* celllayout */
  78 static void        gtk_cell_view_cell_layout_init         (GtkCellLayoutIface *iface);
  79 static GtkCellArea *gtk_cell_view_cell_layout_get_area         (GtkCellLayout         *layout);
  80
  81
  82 /* buildable */
  83 static void       gtk_cell_view_buildable_init                 (GtkBuildableIface     *iface);
  84 static gboolean   gtk_cell_view_buildable_custom_tag_start     (GtkBuildable          *buildable,
  85                                                                 GtkBuilder            *builder,
  86                                                                 GObject               *child,
  87                                                                 const gchar           *tagname,
  88                                                                 GMarkupParser         *parser,
  89                                                                 gpointer              *data);
  90 static void       gtk_cell_view_buildable_custom_tag_end       (GtkBuildable          *buildable,
  91                                                                 GtkBuilder            *builder,
  92                                                                 GObject               *child,
  93                                                                 const gchar           *tagname,
  94                                                                 gpointer              *data);
  95
  96 static void       gtk_cell_view_get_preferred_width            (GtkWidget             *widget,
  97                                                                 gint                  *minimum_size,
  98                                                                 gint                  *natural_size);
  99 static void       gtk_cell_view_get_preferred_height           (GtkWidget             *widget,
 100                                                                 gint                  *minimum_size,
 101                                                                 gint                  *natural_size);
 102 static void       gtk_cell_view_get_preferred_width_for_height (GtkWidget             *widget,
 103                                                                 gint                   avail_size,
 104                                                                 gint                  *minimum_size,
 105                                                                 gint                  *natural_size);
 106 static void       gtk_cell_view_get_preferred_height_for_width (GtkWidget             *widget,
 107                                                                 gint                   avail_size,
 108                                                                 gint                  *minimum_size,
 109                                                                 gint                  *natural_size);
 110
 111 static void       context_size_changed_cb                      (GtkCellAreaContext   *context,
 112                                                                 GParamSpec           *pspec,
 113                                                                 GtkWidget            *view);
 114 static void       row_changed_cb                               (GtkTreeModel         *model,
 115                                                                 GtkTreePath          *path,
 116                                                                 GtkTreeIter          *iter,
 117                                                                 GtkCellView          *view);
 118
 119
 120 struct _GtkCellViewPrivate
 121 {
 122   GtkTreeModel        *model;
 123   GtkTreeRowReference *displayed_row;
 124
 125   GtkCellArea         *area;
 126   GtkCellAreaContext  *context;
 127
 128   GtkOrientation       orientation;
 129
 130   GdkRGBA              background;
 131   gboolean             background_set;
 132
 133   gulong               size_changed_id;
 134   gulong               row_changed_id;
 135
 136   guint32              draw_sensitive : 1;
 137   guint32              fit_model      : 1;
 138 };
 139
 140 static GtkBuildableIface *parent_buildable_iface;
 141
 142 enum
 143 {
 144   PROP_0,
 145   PROP_ORIENTATION,
 146   PROP_BACKGROUND,
 147   PROP_BACKGROUND_GDK,
 148   PROP_BACKGROUND_RGBA,
 149   PROP_BACKGROUND_SET,
 150   PROP_MODEL,
 151   PROP_CELL_AREA,
 152   PROP_CELL_AREA_CONTEXT,
 153   PROP_DRAW_SENSITIVE,
 154   PROP_FIT_MODEL
 155 };
 156
 157 G_DEFINE_TYPE_WITH_CODE (GtkCellView, gtk_cell_view, GTK_TYPE_WIDGET,
 158                          G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT,
 159                                                 gtk_cell_view_cell_layout_init)
 160                          G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
 161                                                 gtk_cell_view_buildable_init)
 162                          G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE, NULL));
 163
 164 static void
 165 gtk_cell_view_class_init (GtkCellViewClass *klass)
 166 {
 167   GObjectClass   *gobject_class = G_OBJECT_CLASS (klass);
 168   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
 169
 170   gobject_class->constructor = gtk_cell_view_constructor;
 171   gobject_class->get_property = gtk_cell_view_get_property;
 172   gobject_class->set_property = gtk_cell_view_set_property;
 173   gobject_class->finalize = gtk_cell_view_finalize;
 174   gobject_class->dispose = gtk_cell_view_dispose;
 175
 176   widget_class->draw                           = gtk_cell_view_draw;
 177   widget_class->size_allocate                  = gtk_cell_view_size_allocate;
 178   widget_class->get_preferred_width            = gtk_cell_view_get_preferred_width;
 179   widget_class->get_preferred_height           = gtk_cell_view_get_preferred_height;
 180   widget_class->get_preferred_width_for_height = gtk_cell_view_get_preferred_width_for_height;
 181   widget_class->get_preferred_height_for_width = gtk_cell_view_get_preferred_height_for_width;
 182
 183   /* properties */
 184   g_object_class_override_property (gobject_class, PROP_ORIENTATION, "orientation");
 185
 186   g_object_class_install_property (gobject_class,
 187                                    PROP_BACKGROUND,
 188                                    g_param_spec_string ("background",
 189                                                         P_("Background color name"),
 190                                                         P_("Background color as a string"),
 191                                                         NULL,
 192                                                         GTK_PARAM_WRITABLE));
 193   g_object_class_install_property (gobject_class,
 194                                    PROP_BACKGROUND_GDK,
 195                                    g_param_spec_boxed ("background-gdk",
 196                                                       P_("Background color"),
 197                                                       P_("Background color as a GdkColor"),
 198                                                       GDK_TYPE_COLOR,
 199                                                       GTK_PARAM_READWRITE));
 200   /**
 201    * GtkCellView:background-rgba
 202    *
 203    * The background color as a #GdkRGBA
 204    *
 205    * Since: 3.0
 206    */
 207   g_object_class_install_property (gobject_class,
 208                                    PROP_BACKGROUND_RGBA,
 209                                    g_param_spec_boxed ("background-rgba",
 210                                                       P_("Background RGBA color"),
 211                                                       P_("Background color as a GdkRGBA"),
 212                                                       GDK_TYPE_RGBA,
 213                                                       GTK_PARAM_READWRITE));
 214
 215   /**
 216    * GtkCellView:model
 217    *
 218    * The model for cell view
 219    *
 220    * since 2.10
 221    */
 222   g_object_class_install_property (gobject_class,
 223                                    PROP_MODEL,
 224                                    g_param_spec_object  ("model",
 225                                                          P_("CellView model"),
 226                                                          P_("The model for cell view"),
 227                                                          GTK_TYPE_TREE_MODEL,
 228                                                          GTK_PARAM_READWRITE));
 229
 230
 231   /**
 232    * GtkCellView:cell-area
 233    *
 234    * The #GtkCellArea rendering cells
 235    *
 236    * since 3.0
 237    */
 238    g_object_class_install_property (gobject_class,
 239                                     PROP_CELL_AREA,
 240                                     g_param_spec_object ("cell-area",
 241                                                          P_("Cell Area"),
 242                                                          P_("The GtkCellArea used to layout cells"),
 243                                                          GTK_TYPE_CELL_AREA,
 244                                                          GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
 245
 246   /**
 247    * GtkCellView:cell-area-context
 248    *
 249    * The #GtkCellAreaContext used to compute the geometry of the cell view.
 250    *
 251    * A group of cell views can be assigned the same context in order to
 252    * ensure the sizes and cell alignments match across all the views with
 253    * the same context.
 254    *
 255    * #GtkComboBox menus uses this to assign the same context to all cell views
 256    * in the menu items for a single menu (each submenu creates it's own
 257    * context since the size of each submenu does not depend on parent
 258    * or sibling menus).
 259    *
 260    * since 3.0
 261    */
 262    g_object_class_install_property (gobject_class,
 263                                     PROP_CELL_AREA_CONTEXT,
 264                                     g_param_spec_object ("cell-area-context",
 265                                                          P_("Cell Area Context"),
 266                                                          P_("The GtkCellAreaContext used to "
 267                                                             "compute the geometry of the cell view"),
 268                                                          GTK_TYPE_CELL_AREA_CONTEXT,
 269                                                          GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
 270
 271   /**
 272    * GtkCellView:draw-sensitive
 273    *
 274    * Whether all cells should be draw as sensitive for this view regardless
 275    * of the actual cell properties (used to make menus with submenus appear
 276    * sensitive when the items in submenus might be insensitive).
 277    *
 278    * since 3.0
 279    */
 280    g_object_class_install_property (gobject_class,
 281                                     PROP_DRAW_SENSITIVE,
 282                                     g_param_spec_boolean ("draw-sensitive",
 283                                                           P_("Draw Sensitive"),
 284                                                           P_("Whether to force cells to be drawn in a "
 285                                                              "sensitive state"),
 286                                                           FALSE,
 287                                                           GTK_PARAM_READWRITE));
 288
 289   /**
 290    * GtkCellView:fit-model
 291    *
 292    * Whether the view should request enough space to always fit
 293    * the size of every row in the model (used by the combo box to
 294    * ensure the combo box size doesnt change when different items
 295    * are selected).
 296    *
 297    * since 3.0
 298    */
 299    g_object_class_install_property (gobject_class,
 300                                     PROP_FIT_MODEL,
 301                                     g_param_spec_boolean ("fit-model",
 302                                                           P_("Fit Model"),
 303                                                           P_("Whether to request enough space for "
 304                                                              "every row in the model"),
 305                                                           FALSE,
 306                                                           GTK_PARAM_READWRITE));
 307
 308
 309 #define ADD_SET_PROP(propname, propval, nick, blurb) g_object_class_install_property (gobject_class, propval, g_param_spec_boolean (propname, nick, blurb, FALSE, GTK_PARAM_READWRITE))
 310
 311   ADD_SET_PROP ("background-set", PROP_BACKGROUND_SET,
 312                 P_("Background set"),
 313                 P_("Whether this tag affects the background color"));
 314
 315   g_type_class_add_private (gobject_class, sizeof (GtkCellViewPrivate));
 316 }
 317
 318 static void
 319 gtk_cell_view_buildable_init (GtkBuildableIface *iface)
 320 {
 321   parent_buildable_iface = g_type_interface_peek_parent (iface);
 322   iface->add_child = _gtk_cell_layout_buildable_add_child;
 323   iface->custom_tag_start = gtk_cell_view_buildable_custom_tag_start;
 324   iface->custom_tag_end = gtk_cell_view_buildable_custom_tag_end;
 325 }
 326
 327 static void
 328 gtk_cell_view_cell_layout_init (GtkCellLayoutIface *iface)
 329 {
 330   iface->get_area = gtk_cell_view_cell_layout_get_area;
 331 }
 332
 333 static GObject *
 334 gtk_cell_view_constructor (GType                  type,
 335                            guint                  n_construct_properties,
 336                            GObjectConstructParam *construct_properties)
 337 {
 338   GObject            *object;
 339   GtkCellView        *view;
 340   GtkCellViewPrivate *priv;
 341
 342   object = G_OBJECT_CLASS (gtk_cell_view_parent_class)->constructor
 343     (type, n_construct_properties, construct_properties);
 344
 345   view = GTK_CELL_VIEW (object);
 346   priv = view->priv;
 347
 348   if (!priv->area)
 349     {
 350       GtkCellArea *area = gtk_cell_area_box_new ();
 351
 352       priv->area = g_object_ref_sink (area);
 353     }
 354
 355   if (!priv->context)
 356     priv->context = gtk_cell_area_create_context (priv->area);
 357
 358   priv->size_changed_id =
 359     g_signal_connect (priv->context, "notify",
 360                       G_CALLBACK (context_size_changed_cb), view);
 361
 362   return object;
 363 }
 364
 365 static void
 366 gtk_cell_view_get_property (GObject    *object,
 367                             guint       param_id,
 368                             GValue     *value,
 369                             GParamSpec *pspec)
 370 {
 371   GtkCellView *view = GTK_CELL_VIEW (object);
 372
 373   switch (param_id)
 374     {
 375     case PROP_ORIENTATION:
 376       g_value_set_enum (value, view->priv->orientation);
 377       break;
 378     case PROP_BACKGROUND_GDK:
 379       {
 380         GdkColor color;
 381
 382         color.red = (guint) (view->priv->background.red * 65535);
 383         color.green = (guint) (view->priv->background.green * 65535);
 384         color.blue = (guint) (view->priv->background.blue * 65535);
 385         color.pixel = 0;
 386
 387         g_value_set_boxed (value, &color);
 388       }
 389       break;
 390     case PROP_BACKGROUND_RGBA:
 391       g_value_set_boxed (value, &view->priv->background);
 392       break;
 393     case PROP_BACKGROUND_SET:
 394       g_value_set_boolean (value, view->priv->background_set);
 395       break;
 396     case PROP_MODEL:
 397       g_value_set_object (value, view->priv->model);
 398       break;
 399     case PROP_CELL_AREA:
 400       g_value_set_object (value, view->priv->area);
 401       break;
 402     case PROP_CELL_AREA_CONTEXT:
 403       g_value_set_object (value, view->priv->context);
 404       break;
 405     case PROP_DRAW_SENSITIVE:
 406       g_value_set_boolean (value, view->priv->draw_sensitive);
 407       break;
 408     case PROP_FIT_MODEL:
 409       g_value_set_boolean (value, view->priv->fit_model);
 410       break;
 411     default:
 412       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 413       break;
 414     }
 415 }
 416
 417 static void
 418 gtk_cell_view_set_property (GObject      *object,
 419                             guint         param_id,
 420                             const GValue *value,
 421                             GParamSpec   *pspec)
 422 {
 423   GtkCellView *view = GTK_CELL_VIEW (object);
 424   GtkCellArea *area;
 425   GtkCellAreaContext *context;
 426
 427   switch (param_id)
 428     {
 429     case PROP_ORIENTATION:
 430       view->priv->orientation = g_value_get_enum (value);
 431       if (view->priv->context)
 432         gtk_cell_area_context_reset (view->priv->context);
 433       break;
 434     case PROP_BACKGROUND:
 435       {
 436         GdkColor color;
 437
 438         if (!g_value_get_string (value))
 439           gtk_cell_view_set_background_color (view, NULL);
 440         else if (gdk_color_parse (g_value_get_string (value), &color))
 441           gtk_cell_view_set_background_color (view, &color);
 442         else
 443           g_warning ("Don't know color `%s'", g_value_get_string (value));
 444
 445         g_object_notify (object, "background-gdk");
 446       }
 447       break;
 448     case PROP_BACKGROUND_GDK:
 449       gtk_cell_view_set_background_color (view, g_value_get_boxed (value));
 450       break;
 451     case PROP_BACKGROUND_RGBA:
 452       gtk_cell_view_set_background_rgba (view, g_value_get_boxed (value));
 453       break;
 454     case PROP_BACKGROUND_SET:
 455       view->priv->background_set = g_value_get_boolean (value);
 456       break;
 457     case PROP_MODEL:
 458       gtk_cell_view_set_model (view, g_value_get_object (value));
 459       break;
 460     case PROP_CELL_AREA:
 461       /* Construct-only, can only be assigned once */
 462       area = g_value_get_object (value);
 463
 464       if (area)
 465         view->priv->area = g_object_ref_sink (area);
 466       break;
 467     case PROP_CELL_AREA_CONTEXT:
 468       /* Construct-only, can only be assigned once */
 469       context = g_value_get_object (value);
 470
 471       if (context)
 472         view->priv->context = g_object_ref (context);
 473       break;
 474
 475     case PROP_DRAW_SENSITIVE:
 476       gtk_cell_view_set_draw_sensitive (view, g_value_get_boolean (value));
 477       break;
 478
 479     case PROP_FIT_MODEL:
 480       gtk_cell_view_set_fit_model (view, g_value_get_boolean (value));
 481       break;
 482
 483     default:
 484         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 485         break;
 486     }
 487 }
 488
 489 static void
 490 gtk_cell_view_init (GtkCellView *cellview)
 491 {
 492   GtkCellViewPrivate *priv;
 493
 494   cellview->priv = G_TYPE_INSTANCE_GET_PRIVATE (cellview,
 495                                                 GTK_TYPE_CELL_VIEW,
 496                                                 GtkCellViewPrivate);
 497   priv = cellview->priv;
 498
 499   gtk_widget_set_has_window (GTK_WIDGET (cellview), FALSE);
 500
 501   priv->orientation = GTK_ORIENTATION_HORIZONTAL;
 502 }
 503
 504 static void
 505 gtk_cell_view_finalize (GObject *object)
 506 {
 507   GtkCellView *cellview = GTK_CELL_VIEW (object);
 508
 509   if (cellview->priv->displayed_row)
 510      gtk_tree_row_reference_free (cellview->priv->displayed_row);
 511
 512   G_OBJECT_CLASS (gtk_cell_view_parent_class)->finalize (object);
 513 }
 514
 515 static void
 516 gtk_cell_view_dispose (GObject *object)
 517 {
 518   GtkCellView *cellview = GTK_CELL_VIEW (object);
 519
 520   gtk_cell_view_set_model (cellview, NULL);
 521
 522   if (cellview->priv->area)
 523     {
 524       g_object_unref (cellview->priv->area);
 525       cellview->priv->area = NULL;
 526     }
 527
 528   if (cellview->priv->context)
 529     {
 530       g_signal_handler_disconnect (cellview->priv->context, cellview->priv->size_changed_id);
 531
 532       g_object_unref (cellview->priv->context);
 533       cellview->priv->context = NULL;
 534       cellview->priv->size_changed_id = 0;
 535     }
 536
 537   G_OBJECT_CLASS (gtk_cell_view_parent_class)->dispose (object);
 538 }
 539
 540 static void
 541 gtk_cell_view_size_allocate (GtkWidget     *widget,
 542                              GtkAllocation *allocation)
 543 {
 544   GtkCellView        *cellview = GTK_CELL_VIEW (widget);
 545   GtkCellViewPrivate *priv = cellview->priv;
 546   gint                alloc_width, alloc_height;
 547
 548   gtk_widget_set_allocation (widget, allocation);
 549
 550   gtk_cell_area_context_get_allocation (priv->context, &alloc_width, &alloc_height);
 551
 552   /* The first cell view in context is responsible for allocating the context at allocate time
 553    * (or the cellview has its own context and is not grouped with any other cell views)
 554    *
 555    * If the cellview is in "fit model" mode, we assume its not in context and needs to
 556    * allocate every time.
 557    */
 558   if (priv->fit_model)
 559     gtk_cell_area_context_allocate (priv->context, allocation->width, allocation->height);
 560   else if (alloc_width != allocation->width && priv->orientation == GTK_ORIENTATION_HORIZONTAL)
 561     gtk_cell_area_context_allocate (priv->context, allocation->width, -1);
 562   else if (alloc_height != allocation->height && priv->orientation == GTK_ORIENTATION_VERTICAL)
 563     gtk_cell_area_context_allocate (priv->context, -1, allocation->height);
 564 }
 565
 566 static void
 567 gtk_cell_view_request_model (GtkCellView        *cellview,
 568                              GtkTreeIter        *parent,
 569                              GtkOrientation      orientation,
 570                              gint                for_size,
 571                              gint               *minimum_size,
 572                              gint               *natural_size)
 573 {
 574   GtkCellViewPrivate *priv = cellview->priv;
 575   GtkTreeIter         iter;
 576   gboolean            valid;
 577
 578   valid = gtk_tree_model_iter_children (priv->model, &iter, parent);
 579   while (valid)
 580     {
 581       gint min, nat;
 582
 583       gtk_cell_area_apply_attributes (priv->area, priv->model, &iter, FALSE, FALSE);
 584
 585       if (orientation == GTK_ORIENTATION_HORIZONTAL)
 586         {
 587           if (for_size < 0)
 588             gtk_cell_area_get_preferred_width (priv->area, priv->context,
 589                                                GTK_WIDGET (cellview), &min, &nat);
 590           else
 591             gtk_cell_area_get_preferred_width_for_height (priv->area, priv->context,
 592                                                           GTK_WIDGET (cellview), for_size, &min, &nat);
 593         }
 594       else
 595         {
 596           if (for_size < 0)
 597             gtk_cell_area_get_preferred_height (priv->area, priv->context,
 598                                                 GTK_WIDGET (cellview), &min, &nat);
 599           else
 600             gtk_cell_area_get_preferred_height_for_width (priv->area, priv->context,
 601                                                           GTK_WIDGET (cellview), for_size, &min, &nat);
 602         }
 603
 604       *minimum_size = MAX (min, *minimum_size);
 605       *natural_size = MAX (nat, *natural_size);
 606
 607       /* Recurse into children when they exist */
 608       gtk_cell_view_request_model (cellview, &iter, orientation, for_size, minimum_size, natural_size);
 609
 610       valid = gtk_tree_model_iter_next (priv->model, &iter);
 611     }
 612 }
 613
 614 static void
 615 gtk_cell_view_get_preferred_width  (GtkWidget *widget,
 616                                     gint      *minimum_size,
 617                                     gint      *natural_size)
 618 {
 619   GtkCellView        *cellview = GTK_CELL_VIEW (widget);
 620   GtkCellViewPrivate *priv = cellview->priv;
 621
 622   g_signal_handler_block (priv->context, priv->size_changed_id);
 623
 624   if (priv->fit_model)
 625     {
 626       gint min = 0, nat = 0;
 627       gtk_cell_view_request_model (cellview, NULL, GTK_ORIENTATION_HORIZONTAL, -1, &min, &nat);
 628     }
 629   else
 630     {
 631       if (cellview->priv->displayed_row)
 632         gtk_cell_view_set_cell_data (cellview);
 633
 634       gtk_cell_area_get_preferred_width (priv->area, priv->context, widget, NULL, NULL);
 635     }
 636
 637   gtk_cell_area_context_get_preferred_width (priv->context, minimum_size, natural_size);
 638
 639   g_signal_handler_unblock (priv->context, priv->size_changed_id);
 640 }
 641
 642 static void
 643 gtk_cell_view_get_preferred_height (GtkWidget *widget,
 644                                     gint      *minimum_size,
 645                                     gint      *natural_size)
 646 {
 647   GtkCellView        *cellview = GTK_CELL_VIEW (widget);
 648   GtkCellViewPrivate *priv = cellview->priv;
 649
 650   g_signal_handler_block (priv->context, priv->size_changed_id);
 651
 652   if (priv->fit_model)
 653     {
 654       gint min = 0, nat = 0;
 655       gtk_cell_view_request_model (cellview, NULL, GTK_ORIENTATION_VERTICAL, -1, &min, &nat);
 656     }
 657   else
 658     {
 659       if (cellview->priv->displayed_row)
 660         gtk_cell_view_set_cell_data (cellview);
 661
 662       gtk_cell_area_get_preferred_height (priv->area, priv->context, widget, NULL, NULL);
 663     }
 664
 665   gtk_cell_area_context_get_preferred_height (priv->context, minimum_size, natural_size);
 666
 667   g_signal_handler_unblock (priv->context, priv->size_changed_id);
 668 }
 669
 670 static void
 671 gtk_cell_view_get_preferred_width_for_height (GtkWidget *widget,
 672                                               gint       for_size,
 673                                               gint      *minimum_size,
 674                                               gint      *natural_size)
 675 {
 676   GtkCellView        *cellview = GTK_CELL_VIEW (widget);
 677   GtkCellViewPrivate *priv = cellview->priv;
 678
 679   if (priv->fit_model)
 680     {
 681       gint min = 0, nat = 0;
 682       gtk_cell_view_request_model (cellview, NULL, GTK_ORIENTATION_HORIZONTAL, for_size, &min, &nat);
 683
 684       *minimum_size = min;
 685       *natural_size = nat;
 686     }
 687   else
 688     {
 689       if (cellview->priv->displayed_row)
 690         gtk_cell_view_set_cell_data (cellview);
 691
 692       gtk_cell_area_get_preferred_width_for_height (priv->area, priv->context, widget,
 693                                                     for_size, minimum_size, natural_size);
 694     }
 695 }
 696
 697 static void
 698 gtk_cell_view_get_preferred_height_for_width (GtkWidget *widget,
 699                                               gint       for_size,
 700                                               gint      *minimum_size,
 701                                               gint      *natural_size)
 702 {
 703   GtkCellView        *cellview = GTK_CELL_VIEW (widget);
 704   GtkCellViewPrivate *priv = cellview->priv;
 705
 706   if (priv->fit_model)
 707     {
 708       gint min = 0, nat = 0;
 709       gtk_cell_view_request_model (cellview, NULL, GTK_ORIENTATION_VERTICAL, for_size, &min, &nat);
 710
 711       *minimum_size = min;
 712       *natural_size = nat;
 713     }
 714   else
 715     {
 716       if (cellview->priv->displayed_row)
 717         gtk_cell_view_set_cell_data (cellview);
 718
 719       gtk_cell_area_get_preferred_height_for_width (priv->area, priv->context, widget,
 720                                                     for_size, minimum_size, natural_size);
 721     }
 722 }
 723
 724 static gboolean
 725 gtk_cell_view_draw (GtkWidget *widget,
 726                     cairo_t   *cr)
 727 {
 728   GtkCellView *cellview;
 729   GdkRectangle area;
 730   GtkCellRendererState state;
 731
 732   cellview = GTK_CELL_VIEW (widget);
 733
 734   /* render cells */
 735   area.x = 0;
 736   area.y = 0;
 737   area.width  = gtk_widget_get_allocated_width (widget);
 738   area.height = gtk_widget_get_allocated_height (widget);
 739
 740   /* "blank" background */
 741   if (cellview->priv->background_set)
 742     {
 743       gdk_cairo_rectangle (cr, &area);
 744       gdk_cairo_set_source_rgba (cr, &cellview->priv->background);
 745       cairo_fill (cr);
 746     }
 747
 748   /* set cell data (if available) */
 749   if (cellview->priv->displayed_row)
 750     gtk_cell_view_set_cell_data (cellview);
 751   else if (cellview->priv->model)
 752     return FALSE;
 753
 754   if (gtk_widget_get_state_flags (widget) & GTK_STATE_FLAG_PRELIGHT)
 755     state = GTK_CELL_RENDERER_PRELIT;
 756   else if (gtk_widget_get_state_flags (widget) & GTK_STATE_FLAG_INSENSITIVE)
 757     state = GTK_CELL_RENDERER_INSENSITIVE;
 758   else
 759     state = 0;
 760
 761   /* Render the cells */
 762   gtk_cell_area_render (cellview->priv->area, cellview->priv->context,
 763                         widget, cr, &area, &area, state, FALSE);
 764
 765   return FALSE;
 766 }
 767
 768 static void
 769 gtk_cell_view_set_cell_data (GtkCellView *cell_view)
 770 {
 771   GtkTreeIter iter;
 772   GtkTreePath *path;
 773
 774   g_return_if_fail (cell_view->priv->displayed_row != NULL);
 775
 776   path = gtk_tree_row_reference_get_path (cell_view->priv->displayed_row);
 777   if (!path)
 778     return;
 779
 780   gtk_tree_model_get_iter (cell_view->priv->model, &iter, path);
 781   gtk_tree_path_free (path);
 782
 783   gtk_cell_area_apply_attributes (cell_view->priv->area,
 784                                   cell_view->priv->model,
 785                                   &iter, FALSE, FALSE);
 786
 787   if (cell_view->priv->draw_sensitive)
 788     {
 789       GList *l, *cells =
 790         gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (cell_view->priv->area));
 791
 792       for (l = cells; l; l = l->next)
 793         {
 794           GObject *renderer = l->data;
 795
 796           g_object_set (renderer, "sensitive", TRUE, NULL);
 797         }
 798       g_list_free (cells);
 799     }
 800 }
 801
 802 /* GtkCellLayout implementation */
 803 static GtkCellArea *
 804 gtk_cell_view_cell_layout_get_area (GtkCellLayout   *layout)
 805 {
 806   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 807
 808   return cellview->priv->area;
 809 }
 810
 811 /* GtkBuildable implementation */
 812 static gboolean
 813 gtk_cell_view_buildable_custom_tag_start (GtkBuildable  *buildable,
 814                                           GtkBuilder    *builder,
 815                                           GObject       *child,
 816                                           const gchar   *tagname,
 817                                           GMarkupParser *parser,
 818                                           gpointer      *data)
 819 {
 820   if (parent_buildable_iface->custom_tag_start &&
 821       parent_buildable_iface->custom_tag_start (buildable, builder, child,
 822                                                 tagname, parser, data))
 823     return TRUE;
 824
 825   return _gtk_cell_layout_buildable_custom_tag_start (buildable, builder, child,
 826                                                       tagname, parser, data);
 827 }
 828
 829 static void
 830 gtk_cell_view_buildable_custom_tag_end (GtkBuildable *buildable,
 831                                         GtkBuilder   *builder,
 832                                         GObject      *child,
 833                                         const gchar  *tagname,
 834                                         gpointer     *data)
 835 {
 836   if (_gtk_cell_layout_buildable_custom_tag_end (buildable, builder, child, tagname,
 837                                                  data))
 838     return;
 839   else if (parent_buildable_iface->custom_tag_end)
 840     parent_buildable_iface->custom_tag_end (buildable, builder, child, tagname,
 841                                             data);
 842 }
 843
 844 static void
 845 context_size_changed_cb (GtkCellAreaContext  *context,
 846                          GParamSpec          *pspec,
 847                          GtkWidget           *view)
 848 {
 849   if (!strcmp (pspec->name, "minimum-width") ||
 850       !strcmp (pspec->name, "natural-width") ||
 851       !strcmp (pspec->name, "minimum-height") ||
 852       !strcmp (pspec->name, "natural-height"))
 853     gtk_widget_queue_resize (view);
 854 }
 855
 856 static void
 857 row_changed_cb (GtkTreeModel         *model,
 858                 GtkTreePath          *path,
 859                 GtkTreeIter          *iter,
 860                 GtkCellView          *view)
 861 {
 862   GtkTreePath *row_path;
 863
 864   if (view->priv->displayed_row)
 865     {
 866       row_path =
 867         gtk_tree_row_reference_get_path (view->priv->displayed_row);
 868
 869       if (row_path)
 870         {
 871           /* Resize everything in our context if our row changed */
 872           if (gtk_tree_path_compare (row_path, path) == 0)
 873             gtk_cell_area_context_reset (view->priv->context);
 874
 875           gtk_tree_path_free (row_path);
 876         }
 877     }
 878 }
 879
 880 /**
 881  * gtk_cell_view_new:
 882  *
 883  * Creates a new #GtkCellView widget.
 884  *
 885  * Return value: A newly created #GtkCellView widget.
 886  *
 887  * Since: 2.6
 888  */
 889 GtkWidget *
 890 gtk_cell_view_new (void)
 891 {
 892   GtkCellView *cellview;
 893
 894   cellview = g_object_new (gtk_cell_view_get_type (), NULL);
 895
 896   return GTK_WIDGET (cellview);
 897 }
 898
 899
 900 /**
 901  * gtk_cell_view_new_with_context:
 902  * @area: the #GtkCellArea to layout cells
 903  * @context: the #GtkCellAreaContext in which to calculate cell geometry
 904  *
 905  * Creates a new #GtkCellView widget with a specific #GtkCellArea
 906  * to layout cells and a specific #GtkCellAreaContext.
 907  *
 908  * Specifying the same context for a handfull of cells lets
 909  * the underlying area synchronize the geometry for those cells,
 910  * in this way alignments with cellviews for other rows are
 911  * possible.
 912  *
 913  * Return value: A newly created #GtkCellView widget.
 914  *
 915  * Since: 2.6
 916  */
 917 GtkWidget *
 918 gtk_cell_view_new_with_context (GtkCellArea        *area,
 919                                 GtkCellAreaContext *context)
 920 {
 921   g_return_val_if_fail (GTK_IS_CELL_AREA (area), NULL);
 922   g_return_val_if_fail (context == NULL || GTK_IS_CELL_AREA_CONTEXT (context), NULL);
 923
 924   return (GtkWidget *)g_object_new (GTK_TYPE_CELL_VIEW,
 925                                     "cell-area", area,
 926                                     "cell-area-context", context,
 927                                     NULL);
 928 }
 929
 930 /**
 931  * gtk_cell_view_new_with_text:
 932  * @text: the text to display in the cell view
 933  *
 934  * Creates a new #GtkCellView widget, adds a #GtkCellRendererText
 935  * to it, and makes its show @text.
 936  *
 937  * Return value: A newly created #GtkCellView widget.
 938  *
 939  * Since: 2.6
 940  */
 941 GtkWidget *
 942 gtk_cell_view_new_with_text (const gchar *text)
 943 {
 944   GtkCellView *cellview;
 945   GtkCellRenderer *renderer;
 946   GValue value = {0, };
 947
 948   cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
 949
 950   renderer = gtk_cell_renderer_text_new ();
 951   gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
 952                               renderer, TRUE);
 953
 954   g_value_init (&value, G_TYPE_STRING);
 955   g_value_set_string (&value, text);
 956   gtk_cell_view_set_value (cellview, renderer, "text", &value);
 957   g_value_unset (&value);
 958
 959   return GTK_WIDGET (cellview);
 960 }
 961
 962 /**
 963  * gtk_cell_view_new_with_markup:
 964  * @markup: the text to display in the cell view
 965  *
 966  * Creates a new #GtkCellView widget, adds a #GtkCellRendererText
 967  * to it, and makes it show @markup. The text can be
 968  * marked up with the <link linkend="PangoMarkupFormat">Pango text
 969  * markup language</link>.
 970  *
 971  * Return value: A newly created #GtkCellView widget.
 972  *
 973  * Since: 2.6
 974  */
 975 GtkWidget *
 976 gtk_cell_view_new_with_markup (const gchar *markup)
 977 {
 978   GtkCellView *cellview;
 979   GtkCellRenderer *renderer;
 980   GValue value = {0, };
 981
 982   cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
 983
 984   renderer = gtk_cell_renderer_text_new ();
 985   gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
 986                               renderer, TRUE);
 987
 988   g_value_init (&value, G_TYPE_STRING);
 989   g_value_set_string (&value, markup);
 990   gtk_cell_view_set_value (cellview, renderer, "markup", &value);
 991   g_value_unset (&value);
 992
 993   return GTK_WIDGET (cellview);
 994 }
 995
 996 /**
 997  * gtk_cell_view_new_with_pixbuf:
 998  * @pixbuf: the image to display in the cell view
 999  *
1000  * Creates a new #GtkCellView widget, adds a #GtkCellRendererPixbuf
1001  * to it, and makes its show @pixbuf.
1002  *
1003  * Return value: A newly created #GtkCellView widget.
1004  *
1005  * Since: 2.6
1006  */
1007 GtkWidget *
1008 gtk_cell_view_new_with_pixbuf (GdkPixbuf *pixbuf)
1009 {
1010   GtkCellView *cellview;
1011   GtkCellRenderer *renderer;
1012   GValue value = {0, };
1013
1014   cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
1015
1016   renderer = gtk_cell_renderer_pixbuf_new ();
1017   gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
1018                               renderer, TRUE);
1019
1020   g_value_init (&value, GDK_TYPE_PIXBUF);
1021   g_value_set_object (&value, pixbuf);
1022   gtk_cell_view_set_value (cellview, renderer, "pixbuf", &value);
1023   g_value_unset (&value);
1024
1025   return GTK_WIDGET (cellview);
1026 }
1027
1028 /**
1029  * gtk_cell_view_set_value:
1030  * @cell_view: a #GtkCellView widget
1031  * @renderer: one of the renderers of @cell_view
1032  * @property: the name of the property of @renderer to set
1033  * @value: the new value to set the property to
1034  *
1035  * Sets a property of a cell renderer of @cell_view, and
1036  * makes sure the display of @cell_view is updated.
1037  *
1038  * Since: 2.6
1039  */
1040 static void
1041 gtk_cell_view_set_value (GtkCellView     *cell_view,
1042                          GtkCellRenderer *renderer,
1043                          gchar           *property,
1044                          GValue          *value)
1045 {
1046   g_object_set_property (G_OBJECT (renderer), property, value);
1047
1048   /* force resize and redraw */
1049   gtk_widget_queue_resize (GTK_WIDGET (cell_view));
1050   gtk_widget_queue_draw (GTK_WIDGET (cell_view));
1051 }
1052
1053 /**
1054  * gtk_cell_view_set_model:
1055  * @cell_view: a #GtkCellView
1056  * @model: (allow-none): a #GtkTreeModel
1057  *
1058  * Sets the model for @cell_view.  If @cell_view already has a model
1059  * set, it will remove it before setting the new model.  If @model is
1060  * %NULL, then it will unset the old model.
1061  *
1062  * Since: 2.6
1063  */
1064 void
1065 gtk_cell_view_set_model (GtkCellView  *cell_view,
1066                          GtkTreeModel *model)
1067 {
1068   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
1069   g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model));
1070
1071   if (cell_view->priv->model)
1072     {
1073       g_signal_handler_disconnect (cell_view->priv->model,
1074                                    cell_view->priv->row_changed_id);
1075       cell_view->priv->row_changed_id = 0;
1076
1077       if (cell_view->priv->displayed_row)
1078         gtk_tree_row_reference_free (cell_view->priv->displayed_row);
1079       cell_view->priv->displayed_row = NULL;
1080
1081       g_object_unref (cell_view->priv->model);
1082       cell_view->priv->model = NULL;
1083     }
1084
1085   cell_view->priv->model = model;
1086
1087   if (cell_view->priv->model)
1088     {
1089       g_object_ref (cell_view->priv->model);
1090
1091       cell_view->priv->row_changed_id =
1092         g_signal_connect (cell_view->priv->model, "row-changed",
1093                           G_CALLBACK (row_changed_cb), cell_view);
1094     }
1095 }
1096
1097 /**
1098  * gtk_cell_view_get_model:
1099  * @cell_view: a #GtkCellView
1100  *
1101  * Returns the model for @cell_view. If no model is used %NULL is
1102  * returned.
1103  *
1104  * Returns: (transfer none): a #GtkTreeModel used or %NULL
1105  *
1106  * Since: 2.16
1107  **/
1108 GtkTreeModel *
1109 gtk_cell_view_get_model (GtkCellView *cell_view)
1110 {
1111   g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), NULL);
1112
1113   return cell_view->priv->model;
1114 }
1115
1116 /**
1117  * gtk_cell_view_set_displayed_row:
1118  * @cell_view: a #GtkCellView
1119  * @path: (allow-none): a #GtkTreePath or %NULL to unset.
1120  *
1121  * Sets the row of the model that is currently displayed
1122  * by the #GtkCellView. If the path is unset, then the
1123  * contents of the cellview "stick" at their last value;
1124  * this is not normally a desired result, but may be
1125  * a needed intermediate state if say, the model for
1126  * the #GtkCellView becomes temporarily empty.
1127  *
1128  * Since: 2.6
1129  **/
1130 void
1131 gtk_cell_view_set_displayed_row (GtkCellView *cell_view,
1132                                  GtkTreePath *path)
1133 {
1134   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
1135   g_return_if_fail (GTK_IS_TREE_MODEL (cell_view->priv->model));
1136
1137   if (cell_view->priv->displayed_row)
1138     gtk_tree_row_reference_free (cell_view->priv->displayed_row);
1139
1140   if (path)
1141     {
1142       cell_view->priv->displayed_row =
1143         gtk_tree_row_reference_new (cell_view->priv->model, path);
1144     }
1145   else
1146     cell_view->priv->displayed_row = NULL;
1147
1148   /* force resize and redraw */
1149   gtk_widget_queue_resize (GTK_WIDGET (cell_view));
1150   gtk_widget_queue_draw (GTK_WIDGET (cell_view));
1151 }
1152
1153 /**
1154  * gtk_cell_view_get_displayed_row:
1155  * @cell_view: a #GtkCellView
1156  *
1157  * Returns a #GtkTreePath referring to the currently
1158  * displayed row. If no row is currently displayed,
1159  * %NULL is returned.
1160  *
1161  * Returns: the currently displayed row or %NULL
1162  *
1163  * Since: 2.6
1164  */
1165 GtkTreePath *
1166 gtk_cell_view_get_displayed_row (GtkCellView *cell_view)
1167 {
1168   g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), NULL);
1169
1170   if (!cell_view->priv->displayed_row)
1171     return NULL;
1172
1173   return gtk_tree_row_reference_get_path (cell_view->priv->displayed_row);
1174 }
1175
1176 /**
1177  * gtk_cell_view_get_size_of_row:
1178  * @cell_view: a #GtkCellView
1179  * @path: a #GtkTreePath
1180  * @requisition: return location for the size
1181  *
1182  * Sets @requisition to the size needed by @cell_view to display
1183  * the model row pointed to by @path.
1184  *
1185  * Return value: %TRUE
1186  *
1187  * Since: 2.6
1188  *
1189  * Deprecated: 3.0: Combo box formerly used this to calculate the
1190  * sizes for cellviews, now you can achieve this by either using
1191  * the #GtkCellView:fit-model property or by setting the currently
1192  * displayed row of the #GtkCellView and using gtk_widget_get_preferred_size().
1193  */
1194 gboolean
1195 gtk_cell_view_get_size_of_row (GtkCellView    *cell_view,
1196                                GtkTreePath    *path,
1197                                GtkRequisition *requisition)
1198 {
1199   GtkTreeRowReference *tmp;
1200   GtkRequisition req;
1201
1202   g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), FALSE);
1203   g_return_val_if_fail (path != NULL, FALSE);
1204
1205   tmp = cell_view->priv->displayed_row;
1206   cell_view->priv->displayed_row =
1207     gtk_tree_row_reference_new (cell_view->priv->model, path);
1208
1209   gtk_widget_get_preferred_width (GTK_WIDGET (cell_view), &req.width, NULL);
1210   gtk_widget_get_preferred_height_for_width (GTK_WIDGET (cell_view), req.width, &req.height, NULL);
1211
1212   gtk_tree_row_reference_free (cell_view->priv->displayed_row);
1213   cell_view->priv->displayed_row = tmp;
1214
1215   if (requisition)
1216     *requisition = req;
1217
1218   return TRUE;
1219 }
1220
1221 /**
1222  * gtk_cell_view_set_background_color:
1223  * @cell_view: a #GtkCellView
1224  * @color: the new background color
1225  *
1226  * Sets the background color of @view.
1227  *
1228  * Since: 2.6
1229  */
1230 void
1231 gtk_cell_view_set_background_color (GtkCellView    *cell_view,
1232                                     const GdkColor *color)
1233 {
1234   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
1235
1236   if (color)
1237     {
1238       if (!cell_view->priv->background_set)
1239         {
1240           cell_view->priv->background_set = TRUE;
1241           g_object_notify (G_OBJECT (cell_view), "background-set");
1242         }
1243
1244       cell_view->priv->background.red = color->red / 65535.;
1245       cell_view->priv->background.green = color->green / 65535.;
1246       cell_view->priv->background.blue = color->blue / 65535.;
1247       cell_view->priv->background.alpha = 1;
1248     }
1249   else
1250     {
1251       if (cell_view->priv->background_set)
1252         {
1253           cell_view->priv->background_set = FALSE;
1254           g_object_notify (G_OBJECT (cell_view), "background-set");
1255         }
1256     }
1257
1258   gtk_widget_queue_draw (GTK_WIDGET (cell_view));
1259 }
1260
1261 /**
1262  * gtk_cell_view_set_background_rgba:
1263  * @cell_view: a #GtkCellView
1264  * @rgba: the new background color
1265  *
1266  * Sets the background color of @cell_view.
1267  *
1268  * Since: 3.0
1269  */
1270 void
1271 gtk_cell_view_set_background_rgba (GtkCellView   *cell_view,
1272                                    const GdkRGBA *rgba)
1273 {
1274   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
1275
1276   if (rgba)
1277     {
1278       if (!cell_view->priv->background_set)
1279         {
1280           cell_view->priv->background_set = TRUE;
1281           g_object_notify (G_OBJECT (cell_view), "background-set");
1282         }
1283
1284       cell_view->priv->background = *rgba;
1285     }
1286   else
1287     {
1288       if (cell_view->priv->background_set)
1289         {
1290           cell_view->priv->background_set = FALSE;
1291           g_object_notify (G_OBJECT (cell_view), "background-set");
1292         }
1293     }
1294
1295   gtk_widget_queue_draw (GTK_WIDGET (cell_view));
1296 }
1297
1298 /**
1299  * gtk_cell_view_get_draw_sensitive:
1300  * @cell_view: a #GtkCellView
1301  *
1302  * Gets whether @cell_view is configured to draw all of it's
1303  * cells in a sensitive state.
1304  *
1305  * Return value: whether @cell_view draws all of it's
1306  * cells in a sensitive state
1307  *
1308  * Since: 3.0
1309  */
1310 gboolean
1311 gtk_cell_view_get_draw_sensitive (GtkCellView     *cell_view)
1312 {
1313   GtkCellViewPrivate *priv;
1314
1315   g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), FALSE);
1316
1317   priv = cell_view->priv;
1318
1319   return priv->draw_sensitive;
1320 }
1321
1322 /**
1323  * gtk_cell_view_set_draw_sensitive:
1324  * @cell_view: a #GtkCellView
1325  * @draw_sensitive: whether to draw all cells in a sensitive state.
1326  *
1327  * Sets whether @cell_view should draw all of it's
1328  * cells in a sensitive state, this is used by #GtkComboBox menus
1329  * to ensure that rows with insensitive cells that contain
1330  * children appear sensitive in the parent menu item.
1331  *
1332  * Since: 3.0
1333  */
1334 void
1335 gtk_cell_view_set_draw_sensitive (GtkCellView     *cell_view,
1336                                   gboolean         draw_sensitive)
1337 {
1338   GtkCellViewPrivate *priv;
1339
1340   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
1341
1342   priv = cell_view->priv;
1343
1344   if (priv->draw_sensitive != draw_sensitive)
1345     {
1346       priv->draw_sensitive = draw_sensitive;
1347
1348       g_object_notify (G_OBJECT (cell_view), "draw-sensitive");
1349     }
1350 }
1351
1352 /**
1353  * gtk_cell_view_get_fit_model:
1354  * @cell_view: a #GtkCellView
1355  *
1356  * Gets whether @cell_view is configured to request space
1357  * to fit the entire #GtkTreeModel.
1358  *
1359  * Return value: whether @cell_view requests space to fit
1360  * the entire #GtkTreeModel.
1361  *
1362  * Since: 3.0
1363  */
1364 gboolean
1365 gtk_cell_view_get_fit_model (GtkCellView     *cell_view)
1366 {
1367   GtkCellViewPrivate *priv;
1368
1369   g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), FALSE);
1370
1371   priv = cell_view->priv;
1372
1373   return priv->fit_model;
1374 }
1375
1376 /**
1377  * gtk_cell_view_set_fit_model:
1378  * @cell_view: a #GtkCellView
1379  * @fit_model: whether @cell_view should request space for the whole model.
1380  *
1381  * Sets whether @cell_view should request space to fit the entire #GtkTreeModel.
1382  *
1383  * This is used by #GtkComboBox to ensure that the cell view displayed on
1384  * the combo box's button always gets enough space and does not resize
1385  * when selection changes.
1386  *
1387  * Since: 3.0
1388  */
1389 void
1390 gtk_cell_view_set_fit_model (GtkCellView     *cell_view,
1391                              gboolean         fit_model)
1392 {
1393   GtkCellViewPrivate *priv;
1394
1395   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
1396
1397   priv = cell_view->priv;
1398
1399   if (priv->fit_model != fit_model)
1400     {
1401       priv->fit_model = fit_model;
1402
1403       gtk_cell_area_context_reset (cell_view->priv->context);
1404
1405       g_object_notify (G_OBJECT (cell_view), "fit-model");
1406     }
1407 }