3 * Copyright (C) 2010 Openismus GmbH
6 * Tristan Van Berkom <tristanvb@openismus.com>
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
26 * SECTION:gtkcellareabox
27 * @Short_Description: A cell area that renders GtkCellRenderers
28 * into a row or a column
29 * @Title: GtkCellAreaBox
31 * The #GtkCellAreaBox renders cell renderers into a row or a column
32 * depending on its #GtkOrientation.
34 * GtkCellAreaBox uses a notion of <emphasis>packing</emphasis>. Packing
35 * refers to adding cell renderers with reference to a particular position
36 * in a #GtkCellAreaBox. There are two reference positions: the
37 * <emphasis>start</emphasis> and the <emphasis>end</emphasis> of the box.
38 * When the #GtkCellAreaBox is oriented in the %GTK_ORIENTATION_VERTICAL
39 * orientation, the start is defined as the top of the box and the end is
40 * defined as the bottom. In the %GTK_ORIENTATION_HORIZONTAL orientation
41 * start is defined as the left side and the end is defined as the right
44 * Alignments of #GtkCellRenderers rendered in adjacent rows can be
45 * configured by configuring the #GtkCellAreaBox:align child cell property
46 * with gtk_cell_area_cell_set_property() or by specifying the "align"
47 * argument to gtk_cell_area_box_pack_start() and gtk_cell_area_box_pack_end().
52 #include "gtkorientable.h"
53 #include "gtkcelllayout.h"
54 #include "gtkcellareabox.h"
55 #include "gtkcellareaboxcontextprivate.h"
56 #include "gtktypebuiltins.h"
57 #include "gtkprivate.h"
61 static void gtk_cell_area_box_finalize (GObject *object);
62 static void gtk_cell_area_box_dispose (GObject *object);
63 static void gtk_cell_area_box_set_property (GObject *object,
67 static void gtk_cell_area_box_get_property (GObject *object,
72 /* GtkCellAreaClass */
73 static void gtk_cell_area_box_add (GtkCellArea *area,
74 GtkCellRenderer *renderer);
75 static void gtk_cell_area_box_remove (GtkCellArea *area,
76 GtkCellRenderer *renderer);
77 static void gtk_cell_area_box_foreach (GtkCellArea *area,
78 GtkCellCallback callback,
79 gpointer callback_data);
80 static void gtk_cell_area_box_foreach_alloc (GtkCellArea *area,
81 GtkCellAreaContext *context,
83 const GdkRectangle *cell_area,
84 const GdkRectangle *background_area,
85 GtkCellAllocCallback callback,
86 gpointer callback_data);
87 static void gtk_cell_area_box_apply_attributes (GtkCellArea *area,
88 GtkTreeModel *tree_model,
91 gboolean is_expanded);
92 static void gtk_cell_area_box_set_cell_property (GtkCellArea *area,
93 GtkCellRenderer *renderer,
97 static void gtk_cell_area_box_get_cell_property (GtkCellArea *area,
98 GtkCellRenderer *renderer,
102 static GtkCellAreaContext *gtk_cell_area_box_create_context (GtkCellArea *area);
103 static GtkCellAreaContext *gtk_cell_area_box_copy_context (GtkCellArea *area,
104 GtkCellAreaContext *context);
105 static GtkSizeRequestMode gtk_cell_area_box_get_request_mode (GtkCellArea *area);
106 static void gtk_cell_area_box_get_preferred_width (GtkCellArea *area,
107 GtkCellAreaContext *context,
110 gint *natural_width);
111 static void gtk_cell_area_box_get_preferred_height (GtkCellArea *area,
112 GtkCellAreaContext *context,
114 gint *minimum_height,
115 gint *natural_height);
116 static void gtk_cell_area_box_get_preferred_height_for_width (GtkCellArea *area,
117 GtkCellAreaContext *context,
120 gint *minimum_height,
121 gint *natural_height);
122 static void gtk_cell_area_box_get_preferred_width_for_height (GtkCellArea *area,
123 GtkCellAreaContext *context,
127 gint *natural_width);
128 static gboolean gtk_cell_area_box_focus (GtkCellArea *area,
129 GtkDirectionType direction);
131 /* GtkCellLayoutIface */
132 static void gtk_cell_area_box_cell_layout_init (GtkCellLayoutIface *iface);
133 static void gtk_cell_area_box_layout_pack_start (GtkCellLayout *cell_layout,
134 GtkCellRenderer *renderer,
136 static void gtk_cell_area_box_layout_pack_end (GtkCellLayout *cell_layout,
137 GtkCellRenderer *renderer,
139 static void gtk_cell_area_box_layout_reorder (GtkCellLayout *cell_layout,
140 GtkCellRenderer *renderer,
142 static void gtk_cell_area_box_focus_changed (GtkCellArea *area,
144 GtkCellAreaBox *box);
147 /* CellInfo/CellGroup metadata handling and convenience functions */
149 GtkCellRenderer *renderer;
151 guint expand : 1; /* Whether the cell expands */
152 guint pack : 1; /* Whether it is packed from the start or end */
153 guint align : 1; /* Whether to align its position with adjacent rows */
154 guint fixed : 1; /* Whether to require the same size for all rows */
162 guint expand_cells : 8;
168 GtkCellRenderer *renderer;
174 static CellInfo *cell_info_new (GtkCellRenderer *renderer,
179 static void cell_info_free (CellInfo *info);
180 static gint cell_info_find (CellInfo *info,
181 GtkCellRenderer *renderer);
183 static AllocatedCell *allocated_cell_new (GtkCellRenderer *renderer,
186 static void allocated_cell_free (AllocatedCell *cell);
187 static GList *list_consecutive_cells (GtkCellAreaBox *box);
188 static gint count_expand_groups (GtkCellAreaBox *box);
189 static void context_weak_notify (GtkCellAreaBox *box,
190 GtkCellAreaBoxContext *dead_context);
191 static void reset_contexts (GtkCellAreaBox *box);
192 static void init_context_groups (GtkCellAreaBox *box);
193 static void init_context_group (GtkCellAreaBox *box,
194 GtkCellAreaBoxContext *context);
195 static GSList *get_allocated_cells (GtkCellAreaBox *box,
196 GtkCellAreaBoxContext *context,
202 struct _GtkCellAreaBoxPrivate
204 /* We hold on to the previously focused cell when navigating
205 * up and down in a horizontal box (or left and right on a vertical one)
206 * this way we always re-enter the last focused cell.
208 GtkCellRenderer *last_focus_cell;
209 gulong focus_cell_id;
216 GtkOrientation orientation;
219 /* We hold on to the rtl state from a widget we are requested for
220 * so that we can navigate focus correctly
235 CELL_PROP_FIXED_SIZE,
239 G_DEFINE_TYPE_WITH_CODE (GtkCellAreaBox, gtk_cell_area_box, GTK_TYPE_CELL_AREA,
240 G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT,
241 gtk_cell_area_box_cell_layout_init)
242 G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE, NULL));
244 #define OPPOSITE_ORIENTATION(orientation) \
245 ((orientation) == GTK_ORIENTATION_HORIZONTAL ? \
246 GTK_ORIENTATION_VERTICAL : GTK_ORIENTATION_HORIZONTAL)
249 gtk_cell_area_box_init (GtkCellAreaBox *box)
251 GtkCellAreaBoxPrivate *priv;
253 box->priv = G_TYPE_INSTANCE_GET_PRIVATE (box,
254 GTK_TYPE_CELL_AREA_BOX,
255 GtkCellAreaBoxPrivate);
258 priv->orientation = GTK_ORIENTATION_HORIZONTAL;
259 priv->groups = g_array_new (FALSE, TRUE, sizeof (CellGroup));
261 priv->contexts = NULL;
265 /* Watch whenever focus is given to a cell, even if it's not with keynav,
266 * this way we remember upon entry of the area where focus was last time
269 priv->focus_cell_id = g_signal_connect (box, "notify::focus-cell",
270 G_CALLBACK (gtk_cell_area_box_focus_changed), box);
274 gtk_cell_area_box_class_init (GtkCellAreaBoxClass *class)
276 GObjectClass *object_class = G_OBJECT_CLASS (class);
277 GtkCellAreaClass *area_class = GTK_CELL_AREA_CLASS (class);
280 object_class->finalize = gtk_cell_area_box_finalize;
281 object_class->dispose = gtk_cell_area_box_dispose;
282 object_class->set_property = gtk_cell_area_box_set_property;
283 object_class->get_property = gtk_cell_area_box_get_property;
285 /* GtkCellAreaClass */
286 area_class->add = gtk_cell_area_box_add;
287 area_class->remove = gtk_cell_area_box_remove;
288 area_class->foreach = gtk_cell_area_box_foreach;
289 area_class->foreach_alloc = gtk_cell_area_box_foreach_alloc;
290 area_class->apply_attributes = gtk_cell_area_box_apply_attributes;
291 area_class->set_cell_property = gtk_cell_area_box_set_cell_property;
292 area_class->get_cell_property = gtk_cell_area_box_get_cell_property;
294 area_class->create_context = gtk_cell_area_box_create_context;
295 area_class->copy_context = gtk_cell_area_box_copy_context;
296 area_class->get_request_mode = gtk_cell_area_box_get_request_mode;
297 area_class->get_preferred_width = gtk_cell_area_box_get_preferred_width;
298 area_class->get_preferred_height = gtk_cell_area_box_get_preferred_height;
299 area_class->get_preferred_height_for_width = gtk_cell_area_box_get_preferred_height_for_width;
300 area_class->get_preferred_width_for_height = gtk_cell_area_box_get_preferred_width_for_height;
302 area_class->focus = gtk_cell_area_box_focus;
305 g_object_class_override_property (object_class, PROP_ORIENTATION, "orientation");
308 * GtkCellAreaBox:spacing:
310 * The amount of space to reserve between cells.
314 g_object_class_install_property (object_class,
316 g_param_spec_int ("spacing",
318 P_("Space which is inserted between cells"),
322 GTK_PARAM_READWRITE));
324 /* Cell Properties */
326 * GtkCellAreaBox:expand:
328 * Whether the cell renderer should receive extra space
329 * when the area receives more than its natural size.
333 gtk_cell_area_class_install_cell_property (area_class,
338 P_("Whether the cell expands"),
340 GTK_PARAM_READWRITE));
343 * GtkCellAreaBox:align:
345 * Whether the cell renderer should be aligned in adjacent rows.
349 gtk_cell_area_class_install_cell_property (area_class,
354 P_("Whether cell should align with adjacent rows"),
356 GTK_PARAM_READWRITE));
359 * GtkCellAreaBox:fixed-size:
361 * Whether the cell renderer should require the same size
362 * for all rows for which it was requested.
366 gtk_cell_area_class_install_cell_property (area_class,
367 CELL_PROP_FIXED_SIZE,
371 P_("Whether cells should be the same size in all rows"),
373 GTK_PARAM_READWRITE));
376 * GtkCellAreaBox:pack-type:
378 * A GtkPackType indicating whether the cell renderer is packed
379 * with reference to the start or end of the area.
383 gtk_cell_area_class_install_cell_property (area_class,
388 P_("A GtkPackType indicating whether the cell is packed with "
389 "reference to the start or end of the cell area"),
390 GTK_TYPE_PACK_TYPE, GTK_PACK_START,
391 GTK_PARAM_READWRITE));
393 g_type_class_add_private (object_class, sizeof (GtkCellAreaBoxPrivate));
397 /*************************************************************
398 * CellInfo/CellGroup basics and convenience functions *
399 *************************************************************/
401 cell_info_new (GtkCellRenderer *renderer,
407 CellInfo *info = g_slice_new (CellInfo);
409 info->renderer = g_object_ref_sink (renderer);
411 info->expand = expand;
419 cell_info_free (CellInfo *info)
421 g_object_unref (info->renderer);
423 g_slice_free (CellInfo, info);
427 cell_info_find (CellInfo *info,
428 GtkCellRenderer *renderer)
430 return (info->renderer == renderer) ? 0 : -1;
433 static AllocatedCell *
434 allocated_cell_new (GtkCellRenderer *renderer,
438 AllocatedCell *cell = g_slice_new (AllocatedCell);
440 cell->renderer = renderer;
441 cell->position = position;
448 allocated_cell_free (AllocatedCell *cell)
450 g_slice_free (AllocatedCell, cell);
454 list_consecutive_cells (GtkCellAreaBox *box)
456 GtkCellAreaBoxPrivate *priv = box->priv;
457 GList *l, *consecutive_cells = NULL, *pack_end_cells = NULL;
460 /* List cells in consecutive order taking their
461 * PACK_START/PACK_END options into account
463 for (l = priv->cells; l; l = l->next)
467 if (info->pack == GTK_PACK_START)
468 consecutive_cells = g_list_prepend (consecutive_cells, info);
471 for (l = priv->cells; l; l = l->next)
475 if (info->pack == GTK_PACK_END)
476 pack_end_cells = g_list_prepend (pack_end_cells, info);
479 consecutive_cells = g_list_reverse (consecutive_cells);
480 consecutive_cells = g_list_concat (consecutive_cells, pack_end_cells);
482 return consecutive_cells;
486 cell_groups_clear (GtkCellAreaBox *box)
488 GtkCellAreaBoxPrivate *priv = box->priv;
491 for (i = 0; i < priv->groups->len; i++)
493 CellGroup *group = &g_array_index (priv->groups, CellGroup, i);
495 g_list_free (group->cells);
498 g_array_set_size (priv->groups, 0);
502 cell_groups_rebuild (GtkCellAreaBox *box)
504 GtkCellAreaBoxPrivate *priv = box->priv;
505 CellGroup group = { 0, };
506 CellGroup *group_ptr;
509 gboolean last_cell_fixed = FALSE;
511 cell_groups_clear (box);
516 cells = list_consecutive_cells (box);
518 /* First group is implied */
519 g_array_append_val (priv->groups, group);
520 group_ptr = &g_array_index (priv->groups, CellGroup, id);
522 for (l = cells; l; l = l->next)
524 CellInfo *info = l->data;
526 /* A new group starts with any aligned cell, or
527 * at the beginning and end of a fixed size cell.
528 * the first group is implied */
529 if ((info->align || info->fixed || last_cell_fixed) && l != cells)
531 memset (&group, 0x0, sizeof (CellGroup));
534 g_array_append_val (priv->groups, group);
535 group_ptr = &g_array_index (priv->groups, CellGroup, id);
538 group_ptr->cells = g_list_prepend (group_ptr->cells, info);
539 group_ptr->n_cells++;
541 /* Not every group is aligned, some are floating
542 * fixed size cells */
544 group_ptr->align = TRUE;
546 /* A group expands if it contains any expand cells */
548 group_ptr->expand_cells++;
550 last_cell_fixed = info->fixed;
555 for (id = 0; id < priv->groups->len; id++)
557 group_ptr = &g_array_index (priv->groups, CellGroup, id);
559 group_ptr->cells = g_list_reverse (group_ptr->cells);
562 /* Contexts need to be updated with the new grouping information */
563 init_context_groups (box);
567 count_visible_cells (CellGroup *group,
571 gint visible_cells = 0;
572 gint n_expand_cells = 0;
574 for (l = group->cells; l; l = l->next)
576 CellInfo *info = l->data;
578 if (gtk_cell_renderer_get_visible (info->renderer))
588 *expand_cells = n_expand_cells;
590 return visible_cells;
594 count_expand_groups (GtkCellAreaBox *box)
596 GtkCellAreaBoxPrivate *priv = box->priv;
598 gint expand_groups = 0;
600 for (i = 0; i < priv->groups->len; i++)
602 CellGroup *group = &g_array_index (priv->groups, CellGroup, i);
604 if (group->expand_cells > 0)
608 return expand_groups;
612 context_weak_notify (GtkCellAreaBox *box,
613 GtkCellAreaBoxContext *dead_context)
615 GtkCellAreaBoxPrivate *priv = box->priv;
617 priv->contexts = g_slist_remove (priv->contexts, dead_context);
621 init_context_group (GtkCellAreaBox *box,
622 GtkCellAreaBoxContext *context)
624 GtkCellAreaBoxPrivate *priv = box->priv;
625 gint *expand_groups, *align_groups, i;
627 expand_groups = g_new (gboolean, priv->groups->len);
628 align_groups = g_new (gboolean, priv->groups->len);
630 for (i = 0; i < priv->groups->len; i++)
632 CellGroup *group = &g_array_index (priv->groups, CellGroup, i);
634 expand_groups[i] = (group->expand_cells > 0);
635 align_groups[i] = group->align;
638 /* This call implies resetting the request info */
639 _gtk_cell_area_box_init_groups (context, priv->groups->len, expand_groups, align_groups);
640 g_free (expand_groups);
641 g_free (align_groups);
645 init_context_groups (GtkCellAreaBox *box)
647 GtkCellAreaBoxPrivate *priv = box->priv;
650 /* When the box's groups are reconstructed,
651 * contexts need to be reinitialized.
653 for (l = priv->contexts; l; l = l->next)
655 GtkCellAreaBoxContext *context = l->data;
657 init_context_group (box, context);
662 reset_contexts (GtkCellAreaBox *box)
664 GtkCellAreaBoxPrivate *priv = box->priv;
667 /* When the box layout changes, contexts need to
668 * be reset and sizes for the box get requested again
670 for (l = priv->contexts; l; l = l->next)
672 GtkCellAreaContext *context = l->data;
674 gtk_cell_area_context_reset (context);
678 /* Fall back on a completely unaligned dynamic allocation of cells
679 * when not allocated for the said orientation, alignment of cells
680 * is not done when each area gets a different size in the orientation
684 allocate_cells_manually (GtkCellAreaBox *box,
689 GtkCellAreaBoxPrivate *priv = box->priv;
691 GSList *allocated_cells = NULL;
692 GtkRequestedSize *sizes;
694 gint nvisible = 0, nexpand = 0, group_expand;
695 gint avail_size, extra_size, extra_extra, full_size;
696 gint position = 0, for_size;
702 /* For vertical oriented boxes, we just let the cell renderers
703 * realign themselves for rtl
705 rtl = (priv->orientation == GTK_ORIENTATION_HORIZONTAL &&
706 gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
708 cells = list_consecutive_cells (box);
710 /* Count the visible and expand cells */
711 for (i = 0; i < priv->groups->len; i++)
713 CellGroup *group = &g_array_index (priv->groups, CellGroup, i);
715 nvisible += count_visible_cells (group, &group_expand);
716 nexpand += group_expand;
725 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
727 full_size = avail_size = width;
732 full_size = avail_size = height;
736 /* Go ahead and collect the requests on the fly */
737 sizes = g_new0 (GtkRequestedSize, nvisible);
738 for (l = cells, i = 0; l; l = l->next)
740 CellInfo *info = l->data;
742 if (!gtk_cell_renderer_get_visible (info->renderer))
745 gtk_cell_area_request_renderer (GTK_CELL_AREA (box), info->renderer,
748 &sizes[i].minimum_size,
749 &sizes[i].natural_size);
751 avail_size -= sizes[i].minimum_size;
753 sizes[i].data = info;
758 /* Naturally distribute the allocation */
759 avail_size -= (nvisible - 1) * priv->spacing;
761 avail_size = gtk_distribute_natural_allocation (avail_size, nvisible, sizes);
765 /* Calculate/distribute expand for cells */
768 extra_size = avail_size / nexpand;
769 extra_extra = avail_size % nexpand;
772 extra_size = extra_extra = 0;
774 /* Create the allocated cells */
775 for (i = 0; i < nvisible; i++)
777 CellInfo *info = sizes[i].data;
782 sizes[i].minimum_size += extra_size;
785 sizes[i].minimum_size++;
791 cell = allocated_cell_new (info->renderer,
792 full_size - (position + sizes[i].minimum_size),
793 sizes[i].minimum_size);
795 cell = allocated_cell_new (info->renderer, position, sizes[i].minimum_size);
797 allocated_cells = g_slist_prepend (allocated_cells, cell);
799 position += sizes[i].minimum_size;
800 position += priv->spacing;
806 /* Note it might not be important to reverse the list here at all,
807 * we have the correct positions, no need to allocate from left to right
809 return g_slist_reverse (allocated_cells);
812 /* Returns an allocation for each cell in the orientation of the box,
813 * used in ->render()/->event() implementations to get a straight-forward
814 * list of allocated cells to operate on.
817 get_allocated_cells (GtkCellAreaBox *box,
818 GtkCellAreaBoxContext *context,
823 GtkCellAreaBoxAllocation *group_allocs;
824 GtkCellArea *area = GTK_CELL_AREA (box);
825 GtkCellAreaBoxPrivate *priv = box->priv;
827 GSList *allocated_cells = NULL;
828 gint i, j, n_allocs, position;
829 gint for_size, full_size;
832 group_allocs = _gtk_cell_area_box_context_get_orientation_allocs (context, &n_allocs);
834 return allocate_cells_manually (box, widget, width, height);
836 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
847 /* For vertical oriented boxes, we just let the cell renderers
848 * realign themselves for rtl
850 rtl = (priv->orientation == GTK_ORIENTATION_HORIZONTAL &&
851 gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
853 for (position = 0, i = 0; i < n_allocs; i++)
855 /* We dont always allocate all groups, sometimes the requested
856 * group has only invisible cells for every row, hence the usage
857 * of group_allocs[i].group_idx here
859 CellGroup *group = &g_array_index (priv->groups, CellGroup, group_allocs[i].group_idx);
861 /* Exception for single cell groups */
862 if (group->n_cells == 1)
864 CellInfo *info = group->cells->data;
866 gint cell_position, cell_size;
868 if (!gtk_cell_renderer_get_visible (info->renderer))
871 /* If were not aligned, place the cell after the last cell */
873 position = cell_position = group_allocs[i].position;
875 cell_position = position;
877 /* If not a fixed size, use only the requested size for this row */
879 cell_size = group_allocs[i].size;
883 gtk_cell_area_request_renderer (area, info->renderer,
888 cell_size = MIN (cell_size, group_allocs[i].size);
892 cell = allocated_cell_new (info->renderer,
893 full_size - (cell_position + cell_size), cell_size);
895 cell = allocated_cell_new (info->renderer, cell_position, cell_size);
897 position += cell_size;
898 position += priv->spacing;
900 allocated_cells = g_slist_prepend (allocated_cells, cell);
904 GtkRequestedSize *sizes;
905 gint avail_size, cell_position;
906 gint visible_cells, expand_cells;
907 gint extra_size, extra_extra;
909 visible_cells = count_visible_cells (group, &expand_cells);
911 /* If this row has no visible cells in this group, just
912 * skip the allocation
914 if (visible_cells == 0)
917 /* If were not aligned, place the cell after the last cell
918 * and eat up the extra space
922 avail_size = group_allocs[i].size;
923 position = cell_position = group_allocs[i].position;
927 avail_size = group_allocs[i].size + (group_allocs[i].position - position);
928 cell_position = position;
931 sizes = g_new (GtkRequestedSize, visible_cells);
933 for (j = 0, cell_list = group->cells; cell_list; cell_list = cell_list->next)
935 CellInfo *info = cell_list->data;
937 if (!gtk_cell_renderer_get_visible (info->renderer))
940 gtk_cell_area_request_renderer (area, info->renderer,
943 &sizes[j].minimum_size,
944 &sizes[j].natural_size);
946 sizes[j].data = info;
947 avail_size -= sizes[j].minimum_size;
952 /* Distribute cells naturally within the group */
953 avail_size -= (visible_cells - 1) * priv->spacing;
955 avail_size = gtk_distribute_natural_allocation (avail_size, visible_cells, sizes);
959 /* Calculate/distribute expand for cells */
960 if (expand_cells > 0)
962 extra_size = avail_size / expand_cells;
963 extra_extra = avail_size % expand_cells;
966 extra_size = extra_extra = 0;
968 /* Create the allocated cells (loop only over visible cells here) */
969 for (j = 0; j < visible_cells; j++)
971 CellInfo *info = sizes[j].data;
976 sizes[j].minimum_size += extra_size;
979 sizes[j].minimum_size++;
985 cell = allocated_cell_new (info->renderer,
986 full_size - (cell_position + sizes[j].minimum_size),
987 sizes[j].minimum_size);
989 cell = allocated_cell_new (info->renderer, cell_position, sizes[j].minimum_size);
991 allocated_cells = g_slist_prepend (allocated_cells, cell);
993 cell_position += sizes[j].minimum_size;
994 cell_position += priv->spacing;
999 position = cell_position;
1003 g_free (group_allocs);
1005 /* Note it might not be important to reverse the list here at all,
1006 * we have the correct positions, no need to allocate from left to right
1008 return g_slist_reverse (allocated_cells);
1013 gtk_cell_area_box_focus_changed (GtkCellArea *area,
1015 GtkCellAreaBox *box)
1017 if (gtk_cell_area_get_focus_cell (area))
1018 box->priv->last_focus_cell = gtk_cell_area_get_focus_cell (area);
1021 /*************************************************************
1023 *************************************************************/
1025 gtk_cell_area_box_finalize (GObject *object)
1027 GtkCellAreaBox *box = GTK_CELL_AREA_BOX (object);
1028 GtkCellAreaBoxPrivate *priv = box->priv;
1031 /* Unref/free the context list */
1032 for (l = priv->contexts; l; l = l->next)
1033 g_object_weak_unref (G_OBJECT (l->data), (GWeakNotify)context_weak_notify, box);
1035 g_slist_free (priv->contexts);
1036 priv->contexts = NULL;
1038 /* Free the cell grouping info */
1039 cell_groups_clear (box);
1040 g_array_free (priv->groups, TRUE);
1042 G_OBJECT_CLASS (gtk_cell_area_box_parent_class)->finalize (object);
1046 gtk_cell_area_box_dispose (GObject *object)
1048 G_OBJECT_CLASS (gtk_cell_area_box_parent_class)->dispose (object);
1052 gtk_cell_area_box_set_property (GObject *object,
1054 const GValue *value,
1057 GtkCellAreaBox *box = GTK_CELL_AREA_BOX (object);
1061 case PROP_ORIENTATION:
1062 box->priv->orientation = g_value_get_enum (value);
1064 /* Notify that size needs to be requested again */
1065 reset_contexts (box);
1069 gtk_cell_area_box_set_spacing (box, g_value_get_int (value));
1072 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1078 gtk_cell_area_box_get_property (GObject *object,
1083 GtkCellAreaBox *box = GTK_CELL_AREA_BOX (object);
1087 case PROP_ORIENTATION:
1088 g_value_set_enum (value, box->priv->orientation);
1091 g_value_set_int (value, gtk_cell_area_box_get_spacing (box));
1094 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1099 /*************************************************************
1100 * GtkCellAreaClass *
1101 *************************************************************/
1103 gtk_cell_area_box_add (GtkCellArea *area,
1104 GtkCellRenderer *renderer)
1106 gtk_cell_area_box_pack_start (GTK_CELL_AREA_BOX (area),
1107 renderer, FALSE, FALSE, TRUE);
1111 gtk_cell_area_box_remove (GtkCellArea *area,
1112 GtkCellRenderer *renderer)
1114 GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
1115 GtkCellAreaBoxPrivate *priv = box->priv;
1118 if (priv->last_focus_cell == renderer)
1119 priv->last_focus_cell = NULL;
1121 node = g_list_find_custom (priv->cells, renderer,
1122 (GCompareFunc)cell_info_find);
1126 CellInfo *info = node->data;
1128 cell_info_free (info);
1130 priv->cells = g_list_delete_link (priv->cells, node);
1132 /* Reconstruct cell groups */
1133 cell_groups_rebuild (box);
1136 g_warning ("Trying to remove a cell renderer that is not present GtkCellAreaBox");
1140 gtk_cell_area_box_foreach (GtkCellArea *area,
1141 GtkCellCallback callback,
1142 gpointer callback_data)
1144 GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
1145 GtkCellAreaBoxPrivate *priv = box->priv;
1148 for (list = priv->cells; list; list = list->next)
1150 CellInfo *info = list->data;
1152 if (callback (info->renderer, callback_data))
1158 gtk_cell_area_box_foreach_alloc (GtkCellArea *area,
1159 GtkCellAreaContext *context,
1161 const GdkRectangle *cell_area,
1162 const GdkRectangle *background_area,
1163 GtkCellAllocCallback callback,
1164 gpointer callback_data)
1166 GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
1167 GtkCellAreaBoxPrivate *priv = box->priv;
1168 GtkCellAreaBoxContext *box_context = GTK_CELL_AREA_BOX_CONTEXT (context);
1169 GSList *allocated_cells, *l;
1170 GdkRectangle cell_alloc, cell_background;
1173 rtl = (priv->orientation == GTK_ORIENTATION_HORIZONTAL &&
1174 gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
1176 cell_alloc = *cell_area;
1178 /* Get a list of cells with allocation sizes decided regardless
1179 * of alignments and pack order etc.
1181 allocated_cells = get_allocated_cells (box, box_context, widget,
1182 cell_area->width, cell_area->height);
1184 for (l = allocated_cells; l; l = l->next)
1186 AllocatedCell *cell = l->data;
1188 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
1190 cell_alloc.x = cell_area->x + cell->position;
1191 cell_alloc.width = cell->size;
1195 cell_alloc.y = cell_area->y + cell->position;
1196 cell_alloc.height = cell->size;
1199 /* Stop iterating over cells if they flow out of the render
1200 * area, this can happen because the render area can actually
1201 * be smaller than the requested area (treeview columns can
1202 * be user resizable and can be resized to be smaller than
1203 * the actual requested area).
1205 if (cell_alloc.x > cell_area->x + cell_area->width ||
1206 cell_alloc.x + cell_alloc.width < cell_area->x ||
1207 cell_alloc.y > cell_area->y + cell_area->height)
1210 /* Special case for the last cell (or first cell in rtl)...
1211 * let the last cell consume the remaining space in the area
1212 * (the last cell is allowed to consume the remaining space if
1213 * the space given for rendering is actually larger than allocation,
1214 * this can happen in the expander GtkTreeViewColumn where only the
1215 * deepest depth column receives the allocation... shallow columns
1216 * receive more width). */
1221 /* Fill the leading space for the first cell in the area
1222 * (still last in the list)
1224 cell_alloc.width = (cell_alloc.x - cell_area->x) + cell_alloc.width;
1225 cell_alloc.x = cell_area->x;
1229 cell_alloc.width = cell_area->x + cell_area->width - cell_alloc.x;
1230 cell_alloc.height = cell_area->y + cell_area->height - cell_alloc.y;
1235 /* If the cell we are rendering doesnt fit into the remaining space,
1236 * clip it so that the underlying renderer has a chance to deal with
1237 * it (for instance text renderers get a chance to ellipsize).
1239 if (cell_alloc.x + cell_alloc.width > cell_area->x + cell_area->width)
1240 cell_alloc.width = cell_area->x + cell_area->width - cell_alloc.x;
1242 if (cell_alloc.y + cell_alloc.height > cell_area->y + cell_area->height)
1243 cell_alloc.height = cell_area->y + cell_area->height - cell_alloc.y;
1246 /* Add portions of the background_area to the cell_alloc
1247 * to create the cell_background
1249 cell_background = cell_alloc;
1251 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
1253 if (l == allocated_cells)
1255 /* Add the depth to the first cell */
1258 cell_background.width += background_area->width - cell_area->width;
1259 cell_background.x = background_area->x + background_area->width - cell_background.width;
1263 cell_background.width += cell_area->x - background_area->x;
1264 cell_background.x = background_area->x;
1268 if (l->next == NULL)
1270 /* Grant this cell the remaining space */
1271 int remain = cell_background.x - background_area->x;
1274 cell_background.x -= remain;
1276 cell_background.width = background_area->width - remain;
1279 cell_background.y = background_area->y;
1280 cell_background.height = background_area->height;
1284 if (l == allocated_cells)
1286 cell_background.height += cell_background.y - background_area->y;
1287 cell_background.y = background_area->y;
1290 if (l->next == NULL)
1291 cell_background.height =
1292 background_area->height - (cell_background.y - background_area->y);
1294 cell_background.x = background_area->x;
1295 cell_background.width = background_area->width;
1298 if (callback (cell->renderer, &cell_alloc, &cell_background, callback_data))
1302 g_slist_foreach (allocated_cells, (GFunc)allocated_cell_free, NULL);
1303 g_slist_free (allocated_cells);
1307 gtk_cell_area_box_apply_attributes (GtkCellArea *area,
1308 GtkTreeModel *tree_model,
1310 gboolean is_expander,
1311 gboolean is_expanded)
1313 GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
1314 GtkCellAreaBoxPrivate *priv = box->priv;
1317 /* Call the parent class to apply the attributes */
1319 (gtk_cell_area_box_parent_class)->apply_attributes (area, tree_model, iter,
1320 is_expander, is_expanded);
1322 /* Update visible state for cell groups */
1323 for (i = 0; i < priv->groups->len; i++)
1325 CellGroup *group = &g_array_index (priv->groups, CellGroup, i);
1328 group->visible = FALSE;
1330 for (list = group->cells; list && group->visible == FALSE; list = list->next)
1332 CellInfo *info = list->data;
1334 if (gtk_cell_renderer_get_visible (info->renderer))
1335 group->visible = TRUE;
1341 gtk_cell_area_box_set_cell_property (GtkCellArea *area,
1342 GtkCellRenderer *renderer,
1344 const GValue *value,
1347 GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
1348 GtkCellAreaBoxPrivate *priv = box->priv;
1351 gboolean rebuild = FALSE;
1353 GtkPackType pack_type;
1355 node = g_list_find_custom (priv->cells, renderer,
1356 (GCompareFunc)cell_info_find);
1364 case CELL_PROP_EXPAND:
1365 val = g_value_get_boolean (value);
1367 if (info->expand != val)
1374 case CELL_PROP_ALIGN:
1375 val = g_value_get_boolean (value);
1377 if (info->align != val)
1384 case CELL_PROP_FIXED_SIZE:
1385 val = g_value_get_boolean (value);
1387 if (info->fixed != val)
1394 case CELL_PROP_PACK_TYPE:
1395 pack_type = g_value_get_enum (value);
1397 if (info->pack != pack_type)
1399 info->pack = pack_type;
1404 GTK_CELL_AREA_WARN_INVALID_CELL_PROPERTY_ID (area, prop_id, pspec);
1408 /* Groups need to be rebuilt */
1410 cell_groups_rebuild (box);
1414 gtk_cell_area_box_get_cell_property (GtkCellArea *area,
1415 GtkCellRenderer *renderer,
1420 GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
1421 GtkCellAreaBoxPrivate *priv = box->priv;
1425 node = g_list_find_custom (priv->cells, renderer,
1426 (GCompareFunc)cell_info_find);
1434 case CELL_PROP_EXPAND:
1435 g_value_set_boolean (value, info->expand);
1438 case CELL_PROP_ALIGN:
1439 g_value_set_boolean (value, info->align);
1442 case CELL_PROP_FIXED_SIZE:
1443 g_value_set_boolean (value, info->fixed);
1446 case CELL_PROP_PACK_TYPE:
1447 g_value_set_enum (value, info->pack);
1450 GTK_CELL_AREA_WARN_INVALID_CELL_PROPERTY_ID (area, prop_id, pspec);
1456 static GtkCellAreaContext *
1457 gtk_cell_area_box_create_context (GtkCellArea *area)
1459 GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
1460 GtkCellAreaBoxPrivate *priv = box->priv;
1461 GtkCellAreaContext *context =
1462 (GtkCellAreaContext *)g_object_new (GTK_TYPE_CELL_AREA_BOX_CONTEXT,
1463 "area", area, NULL);
1465 priv->contexts = g_slist_prepend (priv->contexts, context);
1467 g_object_weak_ref (G_OBJECT (context), (GWeakNotify)context_weak_notify, box);
1469 /* Tell the new group about our cell layout */
1470 init_context_group (box, GTK_CELL_AREA_BOX_CONTEXT (context));
1475 static GtkCellAreaContext *
1476 gtk_cell_area_box_copy_context (GtkCellArea *area,
1477 GtkCellAreaContext *context)
1479 GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
1480 GtkCellAreaBoxPrivate *priv = box->priv;
1481 GtkCellAreaContext *copy =
1482 (GtkCellAreaContext *)_gtk_cell_area_box_context_copy (GTK_CELL_AREA_BOX (area),
1483 GTK_CELL_AREA_BOX_CONTEXT (context));
1485 priv->contexts = g_slist_prepend (priv->contexts, copy);
1487 g_object_weak_ref (G_OBJECT (copy), (GWeakNotify)context_weak_notify, box);
1492 static GtkSizeRequestMode
1493 gtk_cell_area_box_get_request_mode (GtkCellArea *area)
1495 GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
1496 GtkCellAreaBoxPrivate *priv = box->priv;
1498 return (priv->orientation) == GTK_ORIENTATION_HORIZONTAL ?
1499 GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH :
1500 GTK_SIZE_REQUEST_WIDTH_FOR_HEIGHT;
1504 compute_size (GtkCellAreaBox *box,
1505 GtkOrientation orientation,
1506 GtkCellAreaBoxContext *context,
1512 GtkCellAreaBoxPrivate *priv = box->priv;
1513 GtkCellArea *area = GTK_CELL_AREA (box);
1519 for (i = 0; i < priv->groups->len; i++)
1521 CellGroup *group = &g_array_index (priv->groups, CellGroup, i);
1522 gint group_min_size = 0;
1523 gint group_nat_size = 0;
1525 for (list = group->cells; list; list = list->next)
1527 CellInfo *info = list->data;
1528 gint renderer_min_size, renderer_nat_size;
1530 if (!gtk_cell_renderer_get_visible (info->renderer))
1533 gtk_cell_area_request_renderer (area, info->renderer, orientation, widget, for_size,
1534 &renderer_min_size, &renderer_nat_size);
1536 if (orientation == priv->orientation)
1540 min_size += priv->spacing;
1541 nat_size += priv->spacing;
1544 if (group_min_size > 0)
1546 group_min_size += priv->spacing;
1547 group_nat_size += priv->spacing;
1550 min_size += renderer_min_size;
1551 nat_size += renderer_nat_size;
1552 group_min_size += renderer_min_size;
1553 group_nat_size += renderer_nat_size;
1557 min_size = MAX (min_size, renderer_min_size);
1558 nat_size = MAX (nat_size, renderer_nat_size);
1559 group_min_size = MAX (group_min_size, renderer_min_size);
1560 group_nat_size = MAX (group_nat_size, renderer_nat_size);
1564 if (orientation == GTK_ORIENTATION_HORIZONTAL)
1567 _gtk_cell_area_box_context_push_group_width (context, group->id, group_min_size, group_nat_size);
1569 _gtk_cell_area_box_context_push_group_width_for_height (context, group->id, for_size,
1570 group_min_size, group_nat_size);
1575 _gtk_cell_area_box_context_push_group_height (context, group->id, group_min_size, group_nat_size);
1577 _gtk_cell_area_box_context_push_group_height_for_width (context, group->id, for_size,
1578 group_min_size, group_nat_size);
1582 *minimum_size = min_size;
1583 *natural_size = nat_size;
1585 /* Update rtl state for focus navigation to work */
1586 priv->rtl = (priv->orientation == GTK_ORIENTATION_HORIZONTAL &&
1587 gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
1590 static GtkRequestedSize *
1591 get_group_sizes (GtkCellArea *area,
1593 GtkOrientation orientation,
1597 GtkRequestedSize *sizes;
1601 *n_sizes = count_visible_cells (group, NULL);
1602 sizes = g_new (GtkRequestedSize, *n_sizes);
1604 for (l = group->cells, i = 0; l; l = l->next)
1606 CellInfo *info = l->data;
1608 if (!gtk_cell_renderer_get_visible (info->renderer))
1611 sizes[i].data = info;
1613 gtk_cell_area_request_renderer (area, info->renderer,
1614 orientation, widget, -1,
1615 &sizes[i].minimum_size,
1616 &sizes[i].natural_size);
1625 compute_group_size_for_opposing_orientation (GtkCellAreaBox *box,
1632 GtkCellAreaBoxPrivate *priv = box->priv;
1633 GtkCellArea *area = GTK_CELL_AREA (box);
1635 /* Exception for single cell groups */
1636 if (group->n_cells == 1)
1638 CellInfo *info = group->cells->data;
1640 gtk_cell_area_request_renderer (area, info->renderer,
1641 OPPOSITE_ORIENTATION (priv->orientation),
1642 widget, for_size, minimum_size, natural_size);
1646 GtkRequestedSize *orientation_sizes;
1649 gint avail_size = for_size;
1650 gint extra_size, extra_extra;
1651 gint min_size = 0, nat_size = 0;
1653 orientation_sizes = get_group_sizes (area, group, priv->orientation, widget, &n_sizes);
1655 /* First naturally allocate the cells in the group into the for_size */
1656 avail_size -= (n_sizes - 1) * priv->spacing;
1657 for (i = 0; i < n_sizes; i++)
1658 avail_size -= orientation_sizes[i].minimum_size;
1661 avail_size = gtk_distribute_natural_allocation (avail_size, n_sizes, orientation_sizes);
1665 /* Calculate/distribute expand for cells */
1666 if (group->expand_cells > 0)
1668 extra_size = avail_size / group->expand_cells;
1669 extra_extra = avail_size % group->expand_cells;
1672 extra_size = extra_extra = 0;
1674 for (i = 0; i < n_sizes; i++)
1676 gint cell_min, cell_nat;
1678 info = orientation_sizes[i].data;
1682 orientation_sizes[i].minimum_size += extra_size;
1685 orientation_sizes[i].minimum_size++;
1690 gtk_cell_area_request_renderer (area, info->renderer,
1691 OPPOSITE_ORIENTATION (priv->orientation),
1693 orientation_sizes[i].minimum_size,
1694 &cell_min, &cell_nat);
1696 min_size = MAX (min_size, cell_min);
1697 nat_size = MAX (nat_size, cell_nat);
1700 *minimum_size = min_size;
1701 *natural_size = nat_size;
1703 g_free (orientation_sizes);
1708 compute_size_for_opposing_orientation (GtkCellAreaBox *box,
1709 GtkCellAreaBoxContext *context,
1715 GtkCellAreaBoxPrivate *priv = box->priv;
1717 GtkRequestedSize *orientation_sizes;
1718 gint n_groups, n_expand_groups, i;
1719 gint avail_size = for_size;
1720 gint extra_size, extra_extra;
1721 gint min_size = 0, nat_size = 0;
1723 n_expand_groups = count_expand_groups (box);
1725 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
1726 orientation_sizes = _gtk_cell_area_box_context_get_widths (context, &n_groups);
1728 orientation_sizes = _gtk_cell_area_box_context_get_heights (context, &n_groups);
1730 /* First start by naturally allocating space among groups of cells */
1731 avail_size -= (n_groups - 1) * priv->spacing;
1732 for (i = 0; i < n_groups; i++)
1733 avail_size -= orientation_sizes[i].minimum_size;
1736 avail_size = gtk_distribute_natural_allocation (avail_size, n_groups, orientation_sizes);
1740 /* Calculate/distribute expand for groups */
1741 if (n_expand_groups > 0)
1743 extra_size = avail_size / n_expand_groups;
1744 extra_extra = avail_size % n_expand_groups;
1747 extra_size = extra_extra = 0;
1749 /* Now we need to naturally allocate sizes for cells in each group
1750 * and push the height-for-width for each group accordingly while
1751 * accumulating the overall height-for-width for this row.
1753 for (i = 0; i < n_groups; i++)
1755 gint group_min, group_nat;
1756 gint group_idx = GPOINTER_TO_INT (orientation_sizes[i].data);
1758 group = &g_array_index (priv->groups, CellGroup, group_idx);
1760 if (group->expand_cells > 0)
1762 orientation_sizes[i].minimum_size += extra_size;
1765 orientation_sizes[i].minimum_size++;
1770 /* Now we have the allocation for the group,
1771 * request its height-for-width
1773 compute_group_size_for_opposing_orientation (box, group, widget,
1774 orientation_sizes[i].minimum_size,
1775 &group_min, &group_nat);
1777 min_size = MAX (min_size, group_min);
1778 nat_size = MAX (nat_size, group_nat);
1780 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
1782 _gtk_cell_area_box_context_push_group_height_for_width (context, group_idx, for_size,
1783 group_min, group_nat);
1787 _gtk_cell_area_box_context_push_group_width_for_height (context, group_idx, for_size,
1788 group_min, group_nat);
1792 *minimum_size = min_size;
1793 *natural_size = nat_size;
1795 g_free (orientation_sizes);
1797 /* Update rtl state for focus navigation to work */
1798 priv->rtl = (priv->orientation == GTK_ORIENTATION_HORIZONTAL &&
1799 gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
1805 gtk_cell_area_box_get_preferred_width (GtkCellArea *area,
1806 GtkCellAreaContext *context,
1808 gint *minimum_width,
1809 gint *natural_width)
1811 GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
1812 GtkCellAreaBoxContext *box_context;
1813 gint min_width, nat_width;
1815 g_return_if_fail (GTK_IS_CELL_AREA_BOX_CONTEXT (context));
1817 box_context = GTK_CELL_AREA_BOX_CONTEXT (context);
1819 /* Compute the size of all renderers for current row data,
1820 * bumping cell alignments in the context along the way
1822 compute_size (box, GTK_ORIENTATION_HORIZONTAL,
1823 box_context, widget, -1, &min_width, &nat_width);
1826 *minimum_width = min_width;
1829 *natural_width = nat_width;
1833 gtk_cell_area_box_get_preferred_height (GtkCellArea *area,
1834 GtkCellAreaContext *context,
1836 gint *minimum_height,
1837 gint *natural_height)
1839 GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
1840 GtkCellAreaBoxContext *box_context;
1841 gint min_height, nat_height;
1843 g_return_if_fail (GTK_IS_CELL_AREA_BOX_CONTEXT (context));
1845 box_context = GTK_CELL_AREA_BOX_CONTEXT (context);
1847 /* Compute the size of all renderers for current row data,
1848 * bumping cell alignments in the context along the way
1850 compute_size (box, GTK_ORIENTATION_VERTICAL,
1851 box_context, widget, -1, &min_height, &nat_height);
1854 *minimum_height = min_height;
1857 *natural_height = nat_height;
1861 gtk_cell_area_box_get_preferred_height_for_width (GtkCellArea *area,
1862 GtkCellAreaContext *context,
1865 gint *minimum_height,
1866 gint *natural_height)
1868 GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
1869 GtkCellAreaBoxContext *box_context;
1870 GtkCellAreaBoxPrivate *priv;
1871 gint min_height, nat_height;
1873 g_return_if_fail (GTK_IS_CELL_AREA_BOX_CONTEXT (context));
1875 box_context = GTK_CELL_AREA_BOX_CONTEXT (context);
1878 if (priv->orientation == GTK_ORIENTATION_VERTICAL)
1880 /* Add up vertical requests of height for width and push
1881 * the overall cached sizes for alignments
1883 compute_size (box, priv->orientation, box_context, widget, width, &min_height, &nat_height);
1887 /* Juice: virtually allocate cells into the for_width using the
1888 * alignments and then return the overall height for that width,
1891 compute_size_for_opposing_orientation (box, box_context, widget, width, &min_height, &nat_height);
1895 *minimum_height = min_height;
1898 *natural_height = nat_height;
1902 gtk_cell_area_box_get_preferred_width_for_height (GtkCellArea *area,
1903 GtkCellAreaContext *context,
1906 gint *minimum_width,
1907 gint *natural_width)
1909 GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
1910 GtkCellAreaBoxContext *box_context;
1911 GtkCellAreaBoxPrivate *priv;
1912 gint min_width, nat_width;
1914 g_return_if_fail (GTK_IS_CELL_AREA_BOX_CONTEXT (context));
1916 box_context = GTK_CELL_AREA_BOX_CONTEXT (context);
1919 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL)
1921 /* Add up horizontal requests of width for height and push
1922 * the overall cached sizes for alignments
1924 compute_size (box, priv->orientation, box_context, widget, height, &min_width, &nat_width);
1928 /* Juice: horizontally allocate cells into the for_height using the
1929 * alignments and then return the overall width for that height,
1932 compute_size_for_opposing_orientation (box, box_context, widget, height, &min_width, &nat_width);
1936 *minimum_width = min_width;
1939 *natural_width = nat_width;
1950 gtk_cell_area_box_focus (GtkCellArea *area,
1951 GtkDirectionType direction)
1953 GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
1954 GtkCellAreaBoxPrivate *priv = box->priv;
1955 gint cycle = FOCUS_NONE;
1956 gboolean cycled_focus = FALSE;
1957 GtkCellRenderer *focus_cell;
1959 focus_cell = gtk_cell_area_get_focus_cell (area);
1961 /* Special case, when there is no activatable cell, focus
1962 * is painted around the entire area... in this case we
1963 * let focus leave the area directly.
1965 if (focus_cell && !gtk_cell_area_is_activatable (area))
1967 gtk_cell_area_set_focus_cell (area, NULL);
1973 case GTK_DIR_TAB_FORWARD:
1974 cycle = priv->rtl ? FOCUS_PREV : FOCUS_NEXT;
1976 case GTK_DIR_TAB_BACKWARD:
1977 cycle = priv->rtl ? FOCUS_NEXT : FOCUS_PREV;
1980 if (priv->orientation == GTK_ORIENTATION_VERTICAL || !priv->last_focus_cell)
1982 else if (!focus_cell)
1983 cycle = FOCUS_LAST_CELL;
1986 if (priv->orientation == GTK_ORIENTATION_VERTICAL || !priv->last_focus_cell)
1988 else if (!focus_cell)
1989 cycle = FOCUS_LAST_CELL;
1992 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL || !priv->last_focus_cell)
1993 cycle = priv->rtl ? FOCUS_NEXT : FOCUS_PREV;
1994 else if (!focus_cell)
1995 cycle = FOCUS_LAST_CELL;
1998 if (priv->orientation == GTK_ORIENTATION_HORIZONTAL || !priv->last_focus_cell)
1999 cycle = priv->rtl ? FOCUS_PREV : FOCUS_NEXT;
2000 else if (!focus_cell)
2001 cycle = FOCUS_LAST_CELL;
2007 if (cycle == FOCUS_LAST_CELL)
2009 gtk_cell_area_set_focus_cell (area, priv->last_focus_cell);
2010 cycled_focus = TRUE;
2012 else if (cycle != FOCUS_NONE)
2014 gboolean found_cell = FALSE;
2018 /* If there is no focused cell, focus on the first (or last) one */
2022 for (i = (cycle == FOCUS_NEXT) ? 0 : priv->groups->len -1;
2023 cycled_focus == FALSE && i >= 0 && i < priv->groups->len;
2024 i = (cycle == FOCUS_NEXT) ? i + 1 : i - 1)
2026 CellGroup *group = &g_array_index (priv->groups, CellGroup, i);
2028 for (list = (cycle == FOCUS_NEXT) ? g_list_first (group->cells) : g_list_last (group->cells);
2029 cycled_focus == FALSE && list; list = (cycle == FOCUS_NEXT) ? list->next : list->prev)
2031 CellInfo *info = list->data;
2033 if (info->renderer == focus_cell)
2035 else if (found_cell && /* Dont give focus to cells that are siblings to a focus cell */
2036 gtk_cell_area_get_focus_from_sibling (area, info->renderer) == NULL)
2038 gtk_cell_area_set_focus_cell (area, info->renderer);
2039 cycled_focus = TRUE;
2046 gtk_cell_area_set_focus_cell (area, NULL);
2048 return cycled_focus;
2052 /*************************************************************
2053 * GtkCellLayoutIface *
2054 *************************************************************/
2056 gtk_cell_area_box_cell_layout_init (GtkCellLayoutIface *iface)
2058 iface->pack_start = gtk_cell_area_box_layout_pack_start;
2059 iface->pack_end = gtk_cell_area_box_layout_pack_end;
2060 iface->reorder = gtk_cell_area_box_layout_reorder;
2064 gtk_cell_area_box_layout_pack_start (GtkCellLayout *cell_layout,
2065 GtkCellRenderer *renderer,
2068 gtk_cell_area_box_pack_start (GTK_CELL_AREA_BOX (cell_layout), renderer, expand, FALSE, TRUE);
2072 gtk_cell_area_box_layout_pack_end (GtkCellLayout *cell_layout,
2073 GtkCellRenderer *renderer,
2076 gtk_cell_area_box_pack_end (GTK_CELL_AREA_BOX (cell_layout), renderer, expand, FALSE, TRUE);
2080 gtk_cell_area_box_layout_reorder (GtkCellLayout *cell_layout,
2081 GtkCellRenderer *renderer,
2084 GtkCellAreaBox *box = GTK_CELL_AREA_BOX (cell_layout);
2085 GtkCellAreaBoxPrivate *priv = box->priv;
2089 node = g_list_find_custom (priv->cells, renderer,
2090 (GCompareFunc)cell_info_find);
2096 priv->cells = g_list_delete_link (priv->cells, node);
2097 priv->cells = g_list_insert (priv->cells, info, position);
2099 cell_groups_rebuild (box);
2103 /*************************************************************
2104 * Private interaction with GtkCellAreaBoxContext *
2105 *************************************************************/
2107 _gtk_cell_area_box_group_visible (GtkCellAreaBox *box,
2110 GtkCellAreaBoxPrivate *priv = box->priv;
2113 g_assert (group_idx >= 0 && group_idx < priv->groups->len);
2115 group = &g_array_index (priv->groups, CellGroup, group_idx);
2117 return group->visible;
2121 /*************************************************************
2123 *************************************************************/
2125 * gtk_cell_area_box_new:
2127 * Creates a new #GtkCellAreaBox.
2129 * Return value: a newly created #GtkCellAreaBox
2134 gtk_cell_area_box_new (void)
2136 return (GtkCellArea *)g_object_new (GTK_TYPE_CELL_AREA_BOX, NULL);
2140 * gtk_cell_area_box_pack_start:
2141 * @box: a #GtkCellAreaBox
2142 * @renderer: the #GtkCellRenderer to add
2143 * @expand: whether @renderer should receive extra space when the area receives
2144 * more than its natural size
2145 * @align: whether @renderer should be aligned in adjacent rows
2146 * @fixed: whether @renderer should have the same size in all rows
2148 * Adds @renderer to @box, packed with reference to the start of @box.
2150 * The @renderer is packed after any other #GtkCellRenderer packed
2151 * with reference to the start of @box.
2156 gtk_cell_area_box_pack_start (GtkCellAreaBox *box,
2157 GtkCellRenderer *renderer,
2162 GtkCellAreaBoxPrivate *priv;
2165 g_return_if_fail (GTK_IS_CELL_AREA_BOX (box));
2166 g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
2170 if (g_list_find_custom (priv->cells, renderer,
2171 (GCompareFunc)cell_info_find))
2173 g_warning ("Refusing to add the same cell renderer to a GtkCellAreaBox twice");
2177 info = cell_info_new (renderer, GTK_PACK_START, expand, align, fixed);
2179 priv->cells = g_list_append (priv->cells, info);
2181 cell_groups_rebuild (box);
2185 * gtk_cell_area_box_pack_end:
2186 * @box: a #GtkCellAreaBox
2187 * @renderer: the #GtkCellRenderer to add
2188 * @expand: whether @renderer should receive extra space when the area receives
2189 * more than its natural size
2190 * @align: whether @renderer should be aligned in adjacent rows
2191 * @fixed: whether @renderer should have the same size in all rows
2193 * Adds @renderer to @box, packed with reference to the end of @box.
2195 * The @renderer is packed after (away from end of) any other
2196 * #GtkCellRenderer packed with reference to the end of @box.
2201 gtk_cell_area_box_pack_end (GtkCellAreaBox *box,
2202 GtkCellRenderer *renderer,
2207 GtkCellAreaBoxPrivate *priv;
2210 g_return_if_fail (GTK_IS_CELL_AREA_BOX (box));
2211 g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
2215 if (g_list_find_custom (priv->cells, renderer,
2216 (GCompareFunc)cell_info_find))
2218 g_warning ("Refusing to add the same cell renderer to a GtkCellArea twice");
2222 info = cell_info_new (renderer, GTK_PACK_END, expand, align, fixed);
2224 priv->cells = g_list_append (priv->cells, info);
2226 cell_groups_rebuild (box);
2230 * gtk_cell_area_box_get_spacing:
2231 * @box: a #GtkCellAreaBox
2233 * Gets the spacing added between cell renderers.
2235 * Return value: the space added between cell renderers in @box.
2240 gtk_cell_area_box_get_spacing (GtkCellAreaBox *box)
2242 g_return_val_if_fail (GTK_IS_CELL_AREA_BOX (box), 0);
2244 return box->priv->spacing;
2248 * gtk_cell_area_box_set_spacing:
2249 * @box: a #GtkCellAreaBox
2250 * @spacing: the space to add between #GtkCellRenderers
2252 * Sets the spacing to add between cell renderers in @box.
2257 gtk_cell_area_box_set_spacing (GtkCellAreaBox *box,
2260 GtkCellAreaBoxPrivate *priv;
2262 g_return_if_fail (GTK_IS_CELL_AREA_BOX (box));
2266 if (priv->spacing != spacing)
2268 priv->spacing = spacing;
2270 g_object_notify (G_OBJECT (box), "spacing");
2272 /* Notify that size needs to be requested again */
2273 reset_contexts (box);