2 * Copyright (C) 2002, 2003 Kristian Rietveld <kris@gtk.org>
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.
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.
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.
22 #include "gtkcellview.h"
23 #include "gtkcelllayout.h"
25 #include "gtksignal.h"
26 #include "gtkcellrenderertext.h"
27 #include "gtkcellrendererpixbuf.h"
28 #include "gtkprivate.h"
29 #include <gobject/gmarshal.h>
30 #include "gtkbuildable.h"
33 typedef struct _GtkCellViewCellInfo GtkCellViewCellInfo;
34 struct _GtkCellViewCellInfo
36 GtkCellRenderer *cell;
45 GtkCellLayoutDataFunc func;
47 GDestroyNotify destroy;
50 struct _GtkCellViewPrivate
53 GtkTreeRowReference *displayed_row;
58 gboolean background_set;
62 static void gtk_cell_view_cell_layout_init (GtkCellLayoutIface *iface);
63 static void gtk_cell_view_get_property (GObject *object,
67 static void gtk_cell_view_set_property (GObject *object,
71 static void gtk_cell_view_finalize (GObject *object);
72 static void gtk_cell_view_size_request (GtkWidget *widget,
73 GtkRequisition *requisition);
74 static void gtk_cell_view_size_allocate (GtkWidget *widget,
75 GtkAllocation *allocation);
76 static gboolean gtk_cell_view_expose (GtkWidget *widget,
77 GdkEventExpose *event);
78 static void gtk_cell_view_set_value (GtkCellView *cell_view,
79 GtkCellRenderer *renderer,
82 static GtkCellViewCellInfo *gtk_cell_view_get_cell_info (GtkCellView *cellview,
83 GtkCellRenderer *renderer);
84 static void gtk_cell_view_set_cell_data (GtkCellView *cell_view);
87 static void gtk_cell_view_cell_layout_pack_start (GtkCellLayout *layout,
88 GtkCellRenderer *renderer,
90 static void gtk_cell_view_cell_layout_pack_end (GtkCellLayout *layout,
91 GtkCellRenderer *renderer,
93 static void gtk_cell_view_cell_layout_add_attribute (GtkCellLayout *layout,
94 GtkCellRenderer *renderer,
95 const gchar *attribute,
97 static void gtk_cell_view_cell_layout_clear (GtkCellLayout *layout);
98 static void gtk_cell_view_cell_layout_clear_attributes (GtkCellLayout *layout,
99 GtkCellRenderer *renderer);
100 static void gtk_cell_view_cell_layout_set_cell_data_func (GtkCellLayout *layout,
101 GtkCellRenderer *cell,
102 GtkCellLayoutDataFunc func,
104 GDestroyNotify destroy);
105 static void gtk_cell_view_cell_layout_reorder (GtkCellLayout *layout,
106 GtkCellRenderer *cell,
108 static GList * gtk_cell_view_cell_layout_get_cells (GtkCellLayout *layout);
111 static void gtk_cell_view_buildable_init (GtkBuildableIface *iface);
112 static gboolean gtk_cell_view_buildable_custom_tag_start (GtkBuildable *buildable,
115 const gchar *tagname,
116 GMarkupParser *parser,
118 static void gtk_cell_view_buildable_custom_tag_end (GtkBuildable *buildable,
121 const gchar *tagname,
124 static GtkBuildableIface *parent_buildable_iface;
126 #define GTK_CELL_VIEW_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_CELL_VIEW, GtkCellViewPrivate))
137 G_DEFINE_TYPE_WITH_CODE (GtkCellView, gtk_cell_view, GTK_TYPE_WIDGET,
138 G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT,
139 gtk_cell_view_cell_layout_init)
140 G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
141 gtk_cell_view_buildable_init))
144 gtk_cell_view_class_init (GtkCellViewClass *klass)
146 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
147 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
149 gobject_class->get_property = gtk_cell_view_get_property;
150 gobject_class->set_property = gtk_cell_view_set_property;
151 gobject_class->finalize = gtk_cell_view_finalize;
153 widget_class->expose_event = gtk_cell_view_expose;
154 widget_class->size_allocate = gtk_cell_view_size_allocate;
155 widget_class->size_request = gtk_cell_view_size_request;
158 g_object_class_install_property (gobject_class,
160 g_param_spec_string ("background",
161 P_("Background color name"),
162 P_("Background color as a string"),
164 GTK_PARAM_WRITABLE));
165 g_object_class_install_property (gobject_class,
167 g_param_spec_boxed ("background-gdk",
168 P_("Background color"),
169 P_("Background color as a GdkColor"),
171 GTK_PARAM_READWRITE));
176 * The model for cell view
180 g_object_class_install_property (gobject_class,
182 g_param_spec_object ("model",
183 P_("CellView model"),
184 P_("The model for cell view"),
186 GTK_PARAM_READWRITE));
188 #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))
190 ADD_SET_PROP ("background-set", PROP_BACKGROUND_SET,
191 P_("Background set"),
192 P_("Whether this tag affects the background color"));
194 g_type_class_add_private (gobject_class, sizeof (GtkCellViewPrivate));
198 gtk_cell_view_buildable_init (GtkBuildableIface *iface)
200 parent_buildable_iface = g_type_interface_peek_parent (iface);
201 iface->add_child = _gtk_cell_layout_buildable_add_child;
202 iface->custom_tag_start = gtk_cell_view_buildable_custom_tag_start;
203 iface->custom_tag_end = gtk_cell_view_buildable_custom_tag_end;
207 gtk_cell_view_cell_layout_init (GtkCellLayoutIface *iface)
209 iface->pack_start = gtk_cell_view_cell_layout_pack_start;
210 iface->pack_end = gtk_cell_view_cell_layout_pack_end;
211 iface->clear = gtk_cell_view_cell_layout_clear;
212 iface->add_attribute = gtk_cell_view_cell_layout_add_attribute;
213 iface->set_cell_data_func = gtk_cell_view_cell_layout_set_cell_data_func;
214 iface->clear_attributes = gtk_cell_view_cell_layout_clear_attributes;
215 iface->reorder = gtk_cell_view_cell_layout_reorder;
216 iface->get_cells = gtk_cell_view_cell_layout_get_cells;
220 gtk_cell_view_get_property (GObject *object,
225 GtkCellView *view = GTK_CELL_VIEW (object);
229 case PROP_BACKGROUND_GDK:
233 color = view->priv->background;
235 g_value_set_boxed (value, &color);
238 case PROP_BACKGROUND_SET:
239 g_value_set_boolean (value, view->priv->background_set);
242 g_value_set_object (value, view->priv->model);
245 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
251 gtk_cell_view_set_property (GObject *object,
256 GtkCellView *view = GTK_CELL_VIEW (object);
260 case PROP_BACKGROUND:
264 if (!g_value_get_string (value))
265 gtk_cell_view_set_background_color (view, NULL);
266 else if (gdk_color_parse (g_value_get_string (value), &color))
267 gtk_cell_view_set_background_color (view, &color);
269 g_warning ("Don't know color `%s'", g_value_get_string (value));
271 g_object_notify (object, "background-gdk");
274 case PROP_BACKGROUND_GDK:
275 gtk_cell_view_set_background_color (view, g_value_get_boxed (value));
277 case PROP_BACKGROUND_SET:
278 view->priv->background_set = g_value_get_boolean (value);
281 gtk_cell_view_set_model (view, g_value_get_object (value));
284 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
290 gtk_cell_view_init (GtkCellView *cellview)
292 GTK_WIDGET_SET_FLAGS (cellview, GTK_NO_WINDOW);
294 cellview->priv = GTK_CELL_VIEW_GET_PRIVATE (cellview);
298 gtk_cell_view_finalize (GObject *object)
300 GtkCellView *cellview = GTK_CELL_VIEW (object);
302 gtk_cell_view_cell_layout_clear (GTK_CELL_LAYOUT (cellview));
304 if (cellview->priv->model)
305 g_object_unref (cellview->priv->model);
307 if (cellview->priv->displayed_row)
308 gtk_tree_row_reference_free (cellview->priv->displayed_row);
310 (* G_OBJECT_CLASS (gtk_cell_view_parent_class)->finalize) (object);
314 gtk_cell_view_size_request (GtkWidget *widget,
315 GtkRequisition *requisition)
318 gboolean first_cell = TRUE;
319 GtkCellView *cellview;
321 cellview = GTK_CELL_VIEW (widget);
323 requisition->width = 0;
324 requisition->height = 0;
326 if (cellview->priv->displayed_row)
327 gtk_cell_view_set_cell_data (cellview);
329 for (i = cellview->priv->cell_list; i; i = i->next)
332 GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
334 if (!info->cell->visible)
338 requisition->width += cellview->priv->spacing;
340 gtk_cell_renderer_get_size (info->cell, widget, NULL, NULL, NULL,
343 info->requested_width = width;
344 requisition->width += width;
345 requisition->height = MAX (requisition->height, height);
352 gtk_cell_view_size_allocate (GtkWidget *widget,
353 GtkAllocation *allocation)
356 gint expand_cell_count = 0;
357 gint full_requested_width = 0;
359 GtkCellView *cellview;
361 widget->allocation = *allocation;
363 cellview = GTK_CELL_VIEW (widget);
365 /* checking how much extra space we have */
366 for (i = cellview->priv->cell_list; i; i = i->next)
368 GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
370 if (!info->cell->visible)
376 full_requested_width += info->requested_width;
379 extra_space = widget->allocation.width - full_requested_width;
382 else if (extra_space > 0 && expand_cell_count > 0)
383 extra_space /= expand_cell_count;
385 /* iterate list for PACK_START cells */
386 for (i = cellview->priv->cell_list; i; i = i->next)
388 GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
390 if (info->pack == GTK_PACK_END)
393 if (!info->cell->visible)
396 info->real_width = info->requested_width + (info->expand?extra_space:0);
399 /* iterate list for PACK_END cells */
400 for (i = cellview->priv->cell_list; i; i = i->next)
402 GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
404 if (info->pack == GTK_PACK_START)
407 if (!info->cell->visible)
410 info->real_width = info->requested_width + (info->expand?extra_space:0);
415 gtk_cell_view_expose (GtkWidget *widget,
416 GdkEventExpose *event)
419 GtkCellView *cellview;
421 GtkCellRendererState state;
422 gboolean rtl = (gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL);
424 cellview = GTK_CELL_VIEW (widget);
426 if (! GTK_WIDGET_DRAWABLE (widget))
429 /* "blank" background */
430 if (cellview->priv->background_set)
432 cairo_t *cr = gdk_cairo_create (GTK_WIDGET (cellview)->window);
434 gdk_cairo_rectangle (cr, &widget->allocation);
435 cairo_set_source_rgb (cr,
436 cellview->priv->background.red / 65535.,
437 cellview->priv->background.green / 65535.,
438 cellview->priv->background.blue / 65535.);
444 /* set cell data (if available) */
445 if (cellview->priv->displayed_row)
446 gtk_cell_view_set_cell_data (cellview);
447 else if (cellview->priv->model)
451 area = widget->allocation;
453 /* we draw on our very own window, initialize x and y to zero */
454 area.x = widget->allocation.x + (rtl ? widget->allocation.width : 0);
455 area.y = widget->allocation.y;
457 if (GTK_WIDGET_STATE (widget) == GTK_STATE_PRELIGHT)
458 state = GTK_CELL_RENDERER_PRELIT;
463 for (i = cellview->priv->cell_list; i; i = i->next)
465 GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
467 if (info->pack == GTK_PACK_END)
470 if (!info->cell->visible)
473 area.width = info->real_width;
475 area.x -= area.width;
477 gtk_cell_renderer_render (info->cell,
481 &area, &area, &event->area, state);
484 area.x += info->real_width;
487 area.x = rtl ? widget->allocation.x : (widget->allocation.x + widget->allocation.width);
490 for (i = cellview->priv->cell_list; i; i = i->next)
492 GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
494 if (info->pack == GTK_PACK_START)
497 if (!info->cell->visible)
500 area.width = info->real_width;
502 area.x -= area.width;
504 gtk_cell_renderer_render (info->cell,
508 &area, &area, &event->area, state);
510 area.x += info->real_width;
516 static GtkCellViewCellInfo *
517 gtk_cell_view_get_cell_info (GtkCellView *cellview,
518 GtkCellRenderer *renderer)
522 for (i = cellview->priv->cell_list; i; i = i->next)
524 GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
526 if (info->cell == renderer)
534 gtk_cell_view_set_cell_data (GtkCellView *cell_view)
540 g_return_if_fail (cell_view->priv->displayed_row != NULL);
542 path = gtk_tree_row_reference_get_path (cell_view->priv->displayed_row);
546 gtk_tree_model_get_iter (cell_view->priv->model, &iter, path);
547 gtk_tree_path_free (path);
549 for (i = cell_view->priv->cell_list; i; i = i->next)
552 GtkCellViewCellInfo *info = i->data;
554 g_object_freeze_notify (G_OBJECT (info->cell));
556 for (j = info->attributes; j && j->next; j = j->next->next)
558 gchar *property = j->data;
559 gint column = GPOINTER_TO_INT (j->next->data);
560 GValue value = {0, };
562 gtk_tree_model_get_value (cell_view->priv->model, &iter,
564 g_object_set_property (G_OBJECT (info->cell),
566 g_value_unset (&value);
570 (* info->func) (GTK_CELL_LAYOUT (cell_view),
572 cell_view->priv->model,
576 g_object_thaw_notify (G_OBJECT (info->cell));
580 /* GtkCellLayout implementation */
582 gtk_cell_view_cell_layout_pack_start (GtkCellLayout *layout,
583 GtkCellRenderer *renderer,
586 GtkCellViewCellInfo *info;
587 GtkCellView *cellview = GTK_CELL_VIEW (layout);
589 g_return_if_fail (!gtk_cell_view_get_cell_info (cellview, renderer));
591 g_object_ref_sink (renderer);
593 info = g_new0 (GtkCellViewCellInfo, 1);
594 info->cell = renderer;
595 info->expand = expand ? TRUE : FALSE;
596 info->pack = GTK_PACK_START;
598 cellview->priv->cell_list = g_list_append (cellview->priv->cell_list, info);
602 gtk_cell_view_cell_layout_pack_end (GtkCellLayout *layout,
603 GtkCellRenderer *renderer,
606 GtkCellViewCellInfo *info;
607 GtkCellView *cellview = GTK_CELL_VIEW (layout);
609 g_return_if_fail (!gtk_cell_view_get_cell_info (cellview, renderer));
611 g_object_ref_sink (renderer);
613 info = g_new0 (GtkCellViewCellInfo, 1);
614 info->cell = renderer;
615 info->expand = expand ? TRUE : FALSE;
616 info->pack = GTK_PACK_END;
618 cellview->priv->cell_list = g_list_append (cellview->priv->cell_list, info);
622 gtk_cell_view_cell_layout_add_attribute (GtkCellLayout *layout,
623 GtkCellRenderer *renderer,
624 const gchar *attribute,
627 GtkCellViewCellInfo *info;
628 GtkCellView *cellview = GTK_CELL_VIEW (layout);
630 info = gtk_cell_view_get_cell_info (cellview, renderer);
631 g_return_if_fail (info != NULL);
633 info->attributes = g_slist_prepend (info->attributes,
634 GINT_TO_POINTER (column));
635 info->attributes = g_slist_prepend (info->attributes,
636 g_strdup (attribute));
640 gtk_cell_view_cell_layout_clear (GtkCellLayout *layout)
642 GtkCellView *cellview = GTK_CELL_VIEW (layout);
644 while (cellview->priv->cell_list)
646 GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)cellview->priv->cell_list->data;
648 gtk_cell_view_cell_layout_clear_attributes (layout, info->cell);
649 g_object_unref (info->cell);
651 cellview->priv->cell_list = g_list_delete_link (cellview->priv->cell_list,
652 cellview->priv->cell_list);
657 gtk_cell_view_cell_layout_set_cell_data_func (GtkCellLayout *layout,
658 GtkCellRenderer *cell,
659 GtkCellLayoutDataFunc func,
661 GDestroyNotify destroy)
663 GtkCellView *cellview = GTK_CELL_VIEW (layout);
664 GtkCellViewCellInfo *info;
666 info = gtk_cell_view_get_cell_info (cellview, cell);
667 g_return_if_fail (info != NULL);
671 GDestroyNotify d = info->destroy;
673 info->destroy = NULL;
678 info->func_data = func_data;
679 info->destroy = destroy;
683 gtk_cell_view_cell_layout_clear_attributes (GtkCellLayout *layout,
684 GtkCellRenderer *renderer)
686 GtkCellView *cellview = GTK_CELL_VIEW (layout);
687 GtkCellViewCellInfo *info;
690 info = gtk_cell_view_get_cell_info (cellview, renderer);
693 list = info->attributes;
694 while (list && list->next)
697 list = list->next->next;
700 g_slist_free (info->attributes);
701 info->attributes = NULL;
706 gtk_cell_view_cell_layout_reorder (GtkCellLayout *layout,
707 GtkCellRenderer *cell,
710 GtkCellView *cellview = GTK_CELL_VIEW (layout);
711 GtkCellViewCellInfo *info;
714 info = gtk_cell_view_get_cell_info (cellview, cell);
716 g_return_if_fail (info != NULL);
717 g_return_if_fail (position >= 0);
719 link = g_list_find (cellview->priv->cell_list, info);
721 g_return_if_fail (link != NULL);
723 cellview->priv->cell_list = g_list_remove_link (cellview->priv->cell_list,
725 cellview->priv->cell_list = g_list_insert (cellview->priv->cell_list,
728 gtk_widget_queue_draw (GTK_WIDGET (cellview));
734 * Creates a new #GtkCellView widget.
736 * Return value: A newly created #GtkCellView widget.
741 gtk_cell_view_new (void)
743 GtkCellView *cellview;
745 cellview = g_object_new (gtk_cell_view_get_type (), NULL);
747 return GTK_WIDGET (cellview);
751 * gtk_cell_view_new_with_text:
752 * @text: the text to display in the cell view
754 * Creates a new #GtkCellView widget, adds a #GtkCellRendererText
755 * to it, and makes its show @text.
757 * Return value: A newly created #GtkCellView widget.
762 gtk_cell_view_new_with_text (const gchar *text)
764 GtkCellView *cellview;
765 GtkCellRenderer *renderer;
766 GValue value = {0, };
768 cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
770 renderer = gtk_cell_renderer_text_new ();
771 gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
774 g_value_init (&value, G_TYPE_STRING);
775 g_value_set_string (&value, text);
776 gtk_cell_view_set_value (cellview, renderer, "text", &value);
777 g_value_unset (&value);
779 return GTK_WIDGET (cellview);
783 * gtk_cell_view_new_with_markup:
784 * @markup: the text to display in the cell view
786 * Creates a new #GtkCellView widget, adds a #GtkCellRendererText
787 * to it, and makes its show @markup. The text can text can be
788 * marked up with the <link linkend="PangoMarkupFormat">Pango text
789 * markup language</link>.
791 * Return value: A newly created #GtkCellView widget.
796 gtk_cell_view_new_with_markup (const gchar *markup)
798 GtkCellView *cellview;
799 GtkCellRenderer *renderer;
800 GValue value = {0, };
802 cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
804 renderer = gtk_cell_renderer_text_new ();
805 gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
808 g_value_init (&value, G_TYPE_STRING);
809 g_value_set_string (&value, markup);
810 gtk_cell_view_set_value (cellview, renderer, "markup", &value);
811 g_value_unset (&value);
813 return GTK_WIDGET (cellview);
817 * gtk_cell_view_new_with_pixbuf:
818 * @pixbuf: the image to display in the cell view
820 * Creates a new #GtkCellView widget, adds a #GtkCellRendererPixbuf
821 * to it, and makes its show @pixbuf.
823 * Return value: A newly created #GtkCellView widget.
828 gtk_cell_view_new_with_pixbuf (GdkPixbuf *pixbuf)
830 GtkCellView *cellview;
831 GtkCellRenderer *renderer;
832 GValue value = {0, };
834 cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
836 renderer = gtk_cell_renderer_pixbuf_new ();
837 gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
840 g_value_init (&value, GDK_TYPE_PIXBUF);
841 g_value_set_object (&value, pixbuf);
842 gtk_cell_view_set_value (cellview, renderer, "pixbuf", &value);
843 g_value_unset (&value);
845 return GTK_WIDGET (cellview);
849 * gtk_cell_view_set_value:
850 * @cell_view: a #GtkCellView widget
851 * @renderer: one of the renderers of @cell_view
852 * @property: the name of the property of @renderer to set
853 * @value: the new value to set the property to
855 * Sets a property of a cell renderer of @cell_view, and
856 * makes sure the display of @cell_view is updated.
861 gtk_cell_view_set_value (GtkCellView *cell_view,
862 GtkCellRenderer *renderer,
866 g_object_set_property (G_OBJECT (renderer), property, value);
868 /* force resize and redraw */
869 gtk_widget_queue_resize (GTK_WIDGET (cell_view));
870 gtk_widget_queue_draw (GTK_WIDGET (cell_view));
874 * gtk_cell_view_set_model:
875 * @cell_view: a #GtkCellView
876 * @model: a #GtkTreeModel
878 * Sets the model for @cell_view. If @cell_view already has a model
879 * set, it will remove it before setting the new model. If @model is
880 * %NULL, then it will unset the old model.
885 gtk_cell_view_set_model (GtkCellView *cell_view,
888 g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
889 g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model));
891 if (cell_view->priv->model)
893 if (cell_view->priv->displayed_row)
894 gtk_tree_row_reference_free (cell_view->priv->displayed_row);
895 cell_view->priv->displayed_row = NULL;
897 g_object_unref (cell_view->priv->model);
898 cell_view->priv->model = NULL;
901 cell_view->priv->model = model;
903 if (cell_view->priv->model)
904 g_object_ref (cell_view->priv->model);
908 * gtk_cell_view_set_displayed_row:
909 * @cell_view: a #GtkCellView
910 * @path: a #GtkTreePath or %NULL to unset.
912 * Sets the row of the model that is currently displayed
913 * by the #GtkCellView. If the path is unset, then the
914 * contents of the cellview "stick" at their last value;
915 * this is not normally a desired result, but may be
916 * a needed intermediate state if say, the model for
917 * the #GtkCellView becomes temporarily empty.
922 gtk_cell_view_set_displayed_row (GtkCellView *cell_view,
925 g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
926 g_return_if_fail (GTK_IS_TREE_MODEL (cell_view->priv->model));
928 if (cell_view->priv->displayed_row)
929 gtk_tree_row_reference_free (cell_view->priv->displayed_row);
933 cell_view->priv->displayed_row =
934 gtk_tree_row_reference_new (cell_view->priv->model, path);
937 cell_view->priv->displayed_row = NULL;
939 /* force resize and redraw */
940 gtk_widget_queue_resize (GTK_WIDGET (cell_view));
941 gtk_widget_queue_draw (GTK_WIDGET (cell_view));
945 * gtk_cell_view_get_displayed_row:
946 * @cell_view: a #GtkCellView
948 * Returns a #GtkTreePath referring to the currently
949 * displayed row. If no row is currently displayed,
952 * Returns: the currently displayed row or %NULL
957 gtk_cell_view_get_displayed_row (GtkCellView *cell_view)
959 g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), NULL);
961 if (!cell_view->priv->displayed_row)
964 return gtk_tree_row_reference_get_path (cell_view->priv->displayed_row);
968 * gtk_cell_view_get_size_of_row:
969 * @cell_view: a #GtkCellView
970 * @path: a #GtkTreePath
971 * @requisition: return location for the size
973 * Sets @requisition to the size needed by @cell_view to display
974 * the model row pointed to by @path.
976 * Return value: %TRUE
981 gtk_cell_view_get_size_of_row (GtkCellView *cell_view,
983 GtkRequisition *requisition)
985 GtkTreeRowReference *tmp;
988 g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), FALSE);
989 g_return_val_if_fail (path != NULL, FALSE);
990 g_return_val_if_fail (requisition != NULL, FALSE);
992 tmp = cell_view->priv->displayed_row;
993 cell_view->priv->displayed_row =
994 gtk_tree_row_reference_new (cell_view->priv->model, path);
996 gtk_cell_view_size_request (GTK_WIDGET (cell_view), requisition);
998 gtk_tree_row_reference_free (cell_view->priv->displayed_row);
999 cell_view->priv->displayed_row = tmp;
1001 /* restore actual size info */
1002 gtk_cell_view_size_request (GTK_WIDGET (cell_view), &req);
1008 * gtk_cell_view_set_background_color:
1009 * @cell_view: a #GtkCellView
1010 * @color: the new background color
1012 * Sets the background color of @view.
1017 gtk_cell_view_set_background_color (GtkCellView *cell_view,
1018 const GdkColor *color)
1020 g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
1024 if (!cell_view->priv->background_set)
1026 cell_view->priv->background_set = TRUE;
1027 g_object_notify (G_OBJECT (cell_view), "background-set");
1030 cell_view->priv->background = *color;
1034 if (cell_view->priv->background_set)
1036 cell_view->priv->background_set = FALSE;
1037 g_object_notify (G_OBJECT (cell_view), "background-set");
1041 gtk_widget_queue_draw (GTK_WIDGET (cell_view));
1045 * gtk_cell_view_get_cell_renderers:
1046 * @cell_view: a #GtkCellView
1048 * Returns the cell renderers which have been added to @cell_view.
1050 * Return value: a list of cell renderers. The list, but not the
1051 * renderers has been newly allocated and should be freed with
1052 * g_list_free() when no longer needed.
1057 gtk_cell_view_get_cell_renderers (GtkCellView *cell_view)
1059 GList *retval = NULL, *list;
1061 g_return_val_if_fail (cell_view != NULL, NULL);
1063 gtk_cell_view_set_cell_data (cell_view);
1065 for (list = cell_view->priv->cell_list; list; list = list->next)
1067 GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data;
1069 retval = g_list_prepend (retval, info->cell);
1072 return g_list_reverse (retval);
1076 gtk_cell_view_cell_layout_get_cells (GtkCellLayout *layout)
1078 return gtk_cell_view_get_cell_renderers (GTK_CELL_VIEW (layout));
1083 gtk_cell_view_buildable_custom_tag_start (GtkBuildable *buildable,
1084 GtkBuilder *builder,
1086 const gchar *tagname,
1087 GMarkupParser *parser,
1090 if (parent_buildable_iface->custom_tag_start (buildable, builder, child,
1091 tagname, parser, data))
1094 return _gtk_cell_layout_buildable_custom_tag_start (buildable, builder, child,
1095 tagname, parser, data);
1099 gtk_cell_view_buildable_custom_tag_end (GtkBuildable *buildable,
1100 GtkBuilder *builder,
1102 const gchar *tagname,
1105 if (strcmp (tagname, "attributes") == 0)
1106 _gtk_cell_layout_buildable_custom_tag_end (buildable, builder, child, tagname,
1109 parent_buildable_iface->custom_tag_end (buildable, builder, child, tagname,
1114 #define __GTK_CELL_VIEW_C__
1115 #include "gtkaliasdef.c"