forked from AuroraMiddleware/gtk
861ba00166
That function can't be meant to be public, since it take a GtkCellAreaBoxContext argument, which is not a public type.
861 lines
29 KiB
C
861 lines
29 KiB
C
/* gtkcellareaboxcontext.c
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*
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* Copyright (C) 2010 Openismus GmbH
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*
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* Authors:
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* Tristan Van Berkom <tristanvb@openismus.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include "gtkintl.h"
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#include "gtkcellareabox.h"
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#include "gtkcellareaboxcontextprivate.h"
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#include "gtkorientable.h"
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/* GObjectClass */
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static void _gtk_cell_area_box_context_finalize (GObject *object);
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/* GtkCellAreaContextClass */
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static void _gtk_cell_area_box_context_reset (GtkCellAreaContext *context);
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static void _gtk_cell_area_box_context_get_preferred_height_for_width (GtkCellAreaContext *context,
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gint width,
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gint *minimum_height,
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gint *natural_height);
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static void _gtk_cell_area_box_context_get_preferred_width_for_height (GtkCellAreaContext *context,
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gint height,
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gint *minimum_width,
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gint *natural_width);
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/* Internal functions */
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static void _gtk_cell_area_box_context_sum (GtkCellAreaBoxContext *context,
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GtkOrientation orientation,
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gint for_size,
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gint *minimum_size,
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gint *natural_size);
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static void free_cache_array (GArray *array);
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static GArray *group_array_new (GtkCellAreaBoxContext *context);
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static GArray *get_array (GtkCellAreaBoxContext *context,
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GtkOrientation orientation,
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gint for_size);
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static gboolean group_expands (GtkCellAreaBoxContext *context,
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gint group_idx);
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static gint count_expand_groups (GtkCellAreaBoxContext *context);
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/* CachedSize management */
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typedef struct {
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gint min_size;
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gint nat_size;
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} CachedSize;
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struct _GtkCellAreaBoxContextPrivate
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{
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/* Table of per renderer CachedSizes */
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GArray *base_widths;
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GArray *base_heights;
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/* Table of per height/width hash tables of per renderer CachedSizes */
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GHashTable *widths;
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GHashTable *heights;
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/* Whether each group expands */
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gboolean *expand;
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/* Whether each group is aligned */
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gboolean *align;
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};
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G_DEFINE_TYPE (GtkCellAreaBoxContext, _gtk_cell_area_box_context, GTK_TYPE_CELL_AREA_CONTEXT);
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static void
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free_cache_array (GArray *array)
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{
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g_array_free (array, TRUE);
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}
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static GArray *
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group_array_new (GtkCellAreaBoxContext *context)
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{
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GtkCellAreaBoxContextPrivate *priv = context->priv;
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GArray *group_array;
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group_array = g_array_new (FALSE, TRUE, sizeof (CachedSize));
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g_array_set_size (group_array, priv->base_widths->len);
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return group_array;
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}
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static GArray *
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get_array (GtkCellAreaBoxContext *context,
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GtkOrientation orientation,
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gint for_size)
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{
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GtkCellAreaBoxContextPrivate *priv = context->priv;
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GArray *array;
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if (for_size < 0)
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{
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if (orientation == GTK_ORIENTATION_HORIZONTAL)
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array = priv->base_widths;
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else
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array = priv->base_heights;
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}
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else
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{
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if (orientation == GTK_ORIENTATION_HORIZONTAL)
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{
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array = g_hash_table_lookup (priv->widths, GINT_TO_POINTER (for_size));
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if (!array)
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array = priv->base_widths;
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}
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else
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{
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array = g_hash_table_lookup (priv->heights, GINT_TO_POINTER (for_size));
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if (!array)
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array = priv->base_heights;
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}
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}
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return array;
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}
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static gboolean
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group_expands (GtkCellAreaBoxContext *context,
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gint group_idx)
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{
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GtkCellAreaBoxContextPrivate *priv = context->priv;
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g_assert (group_idx >= 0 && group_idx < priv->base_widths->len);
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return priv->expand[group_idx];
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}
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static gint
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count_expand_groups (GtkCellAreaBoxContext *context)
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{
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GtkCellAreaBoxContextPrivate *priv = context->priv;
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gint i, expand = 0;
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for (i = 0; i < priv->base_widths->len; i++)
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{
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if (priv->expand[i])
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expand++;
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}
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return expand;
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}
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static void
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_gtk_cell_area_box_context_init (GtkCellAreaBoxContext *box_context)
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{
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GtkCellAreaBoxContextPrivate *priv;
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box_context->priv = G_TYPE_INSTANCE_GET_PRIVATE (box_context,
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GTK_TYPE_CELL_AREA_BOX_CONTEXT,
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GtkCellAreaBoxContextPrivate);
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priv = box_context->priv;
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priv->base_widths = g_array_new (FALSE, TRUE, sizeof (CachedSize));
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priv->base_heights = g_array_new (FALSE, TRUE, sizeof (CachedSize));
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priv->widths = g_hash_table_new_full (g_direct_hash, g_direct_equal,
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NULL, (GDestroyNotify)free_cache_array);
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priv->heights = g_hash_table_new_full (g_direct_hash, g_direct_equal,
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NULL, (GDestroyNotify)free_cache_array);
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}
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static void
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_gtk_cell_area_box_context_class_init (GtkCellAreaBoxContextClass *class)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (class);
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GtkCellAreaContextClass *context_class = GTK_CELL_AREA_CONTEXT_CLASS (class);
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/* GObjectClass */
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object_class->finalize = _gtk_cell_area_box_context_finalize;
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context_class->reset = _gtk_cell_area_box_context_reset;
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context_class->get_preferred_height_for_width = _gtk_cell_area_box_context_get_preferred_height_for_width;
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context_class->get_preferred_width_for_height = _gtk_cell_area_box_context_get_preferred_width_for_height;
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g_type_class_add_private (object_class, sizeof (GtkCellAreaBoxContextPrivate));
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}
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/*************************************************************
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* GObjectClass *
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*************************************************************/
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static void
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_gtk_cell_area_box_context_finalize (GObject *object)
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{
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GtkCellAreaBoxContext *box_context = GTK_CELL_AREA_BOX_CONTEXT (object);
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GtkCellAreaBoxContextPrivate *priv = box_context->priv;
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g_array_free (priv->base_widths, TRUE);
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g_array_free (priv->base_heights, TRUE);
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g_hash_table_destroy (priv->widths);
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g_hash_table_destroy (priv->heights);
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g_free (priv->expand);
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g_free (priv->align);
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G_OBJECT_CLASS (_gtk_cell_area_box_context_parent_class)->finalize (object);
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}
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/*************************************************************
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* GtkCellAreaContextClass *
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*************************************************************/
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static void
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_gtk_cell_area_box_context_reset (GtkCellAreaContext *context)
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{
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GtkCellAreaBoxContext *box_context = GTK_CELL_AREA_BOX_CONTEXT (context);
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GtkCellAreaBoxContextPrivate *priv = box_context->priv;
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CachedSize *size;
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gint i;
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for (i = 0; i < priv->base_widths->len; i++)
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{
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size = &g_array_index (priv->base_widths, CachedSize, i);
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size->min_size = 0;
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size->nat_size = 0;
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size = &g_array_index (priv->base_heights, CachedSize, i);
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size->min_size = 0;
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size->nat_size = 0;
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}
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/* Reset context sizes as well */
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g_hash_table_remove_all (priv->widths);
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g_hash_table_remove_all (priv->heights);
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GTK_CELL_AREA_CONTEXT_CLASS
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(_gtk_cell_area_box_context_parent_class)->reset (context);
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}
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static void
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_gtk_cell_area_box_context_sum (GtkCellAreaBoxContext *context,
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GtkOrientation orientation,
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gint for_size,
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gint *minimum_size,
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gint *natural_size)
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{
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GtkCellAreaBoxContextPrivate *priv = context->priv;
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GtkCellAreaBox *area;
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GtkOrientation box_orientation;
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GArray *array;
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gint spacing, i, last_aligned_group_idx;
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gint min_size = 0, nat_size = 0;
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area = (GtkCellAreaBox *)gtk_cell_area_context_get_area (GTK_CELL_AREA_CONTEXT (context));
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spacing = gtk_cell_area_box_get_spacing (area);
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box_orientation = gtk_orientable_get_orientation (GTK_ORIENTABLE (area));
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array = get_array (context, orientation, for_size);
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/* Get the last visible aligned group
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* (we need to get space at least up till this group) */
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for (i = array->len - 1; i >= 0; i--)
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{
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if (priv->align[i] &&
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_gtk_cell_area_box_group_visible (area, i))
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break;
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}
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last_aligned_group_idx = i >= 0 ? i : 0;
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for (i = 0; i < array->len; i++)
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{
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CachedSize *size = &g_array_index (array, CachedSize, i);
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if (box_orientation == orientation)
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{
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if (i > last_aligned_group_idx &&
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!_gtk_cell_area_box_group_visible (area, i))
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continue;
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/* Dont add spacing for 0 size groups, they can be 0 size because
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* they contain only invisible cells for this round of requests
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*/
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if (min_size > 0 && size->nat_size > 0)
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{
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min_size += spacing;
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nat_size += spacing;
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}
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min_size += size->min_size;
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nat_size += size->nat_size;
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}
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else
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{
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min_size = MAX (min_size, size->min_size);
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nat_size = MAX (nat_size, size->nat_size);
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}
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}
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if (for_size < 0)
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{
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if (orientation == GTK_ORIENTATION_HORIZONTAL)
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gtk_cell_area_context_push_preferred_width (GTK_CELL_AREA_CONTEXT (context), min_size, nat_size);
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else
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gtk_cell_area_context_push_preferred_height (GTK_CELL_AREA_CONTEXT (context), min_size, nat_size);
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}
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if (minimum_size)
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*minimum_size = min_size;
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if (natural_size)
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*natural_size = nat_size;
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}
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static void
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_gtk_cell_area_box_context_get_preferred_height_for_width (GtkCellAreaContext *context,
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gint width,
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gint *minimum_height,
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gint *natural_height)
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{
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_gtk_cell_area_box_context_sum (GTK_CELL_AREA_BOX_CONTEXT (context), GTK_ORIENTATION_VERTICAL,
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width, minimum_height, natural_height);
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}
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static void
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_gtk_cell_area_box_context_get_preferred_width_for_height (GtkCellAreaContext *context,
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gint height,
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gint *minimum_width,
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gint *natural_width)
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{
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_gtk_cell_area_box_context_sum (GTK_CELL_AREA_BOX_CONTEXT (context), GTK_ORIENTATION_HORIZONTAL,
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height, minimum_width, natural_width);
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}
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/*************************************************************
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* API *
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*************************************************************/
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static void
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copy_size_array (GArray *src_array,
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GArray *dest_array)
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{
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gint i;
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for (i = 0; i < src_array->len; i++)
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{
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CachedSize *src = &g_array_index (src_array, CachedSize, i);
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CachedSize *dest = &g_array_index (dest_array, CachedSize, i);
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memcpy (dest, src, sizeof (CachedSize));
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}
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}
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static void
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for_size_copy (gpointer key,
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GArray *size_array,
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GHashTable *dest_hash)
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{
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GArray *new_array;
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new_array = g_array_new (FALSE, TRUE, sizeof (CachedSize));
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g_array_set_size (new_array, size_array->len);
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copy_size_array (size_array, new_array);
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g_hash_table_insert (dest_hash, key, new_array);
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}
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GtkCellAreaBoxContext *
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_gtk_cell_area_box_context_copy (GtkCellAreaBox *box,
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GtkCellAreaBoxContext *context)
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{
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GtkCellAreaBoxContext *copy;
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copy = g_object_new (GTK_TYPE_CELL_AREA_BOX_CONTEXT,
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"area", box, NULL);
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_gtk_cell_area_box_init_groups (copy,
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context->priv->base_widths->len,
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context->priv->expand,
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context->priv->align);
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/* Copy the base arrays */
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copy_size_array (context->priv->base_widths,
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copy->priv->base_widths);
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copy_size_array (context->priv->base_heights,
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copy->priv->base_heights);
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/* Copy each for size */
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g_hash_table_foreach (context->priv->heights,
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(GHFunc)for_size_copy, copy->priv->heights);
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g_hash_table_foreach (context->priv->widths,
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(GHFunc)for_size_copy, copy->priv->widths);
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return copy;
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}
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void
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_gtk_cell_area_box_init_groups (GtkCellAreaBoxContext *box_context,
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guint n_groups,
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gboolean *expand_groups,
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gboolean *align_groups)
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{
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GtkCellAreaBoxContextPrivate *priv;
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g_return_if_fail (GTK_IS_CELL_AREA_BOX_CONTEXT (box_context));
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g_return_if_fail (n_groups == 0 || expand_groups != NULL);
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/* When the group dimensions change, all info must be reset
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* Note this already clears the min/nat values on the CachedSizes
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*/
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gtk_cell_area_context_reset (GTK_CELL_AREA_CONTEXT (box_context));
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priv = box_context->priv;
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g_array_set_size (priv->base_widths, n_groups);
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g_array_set_size (priv->base_heights, n_groups);
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g_free (priv->expand);
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priv->expand = g_memdup (expand_groups, n_groups * sizeof (gboolean));
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g_free (priv->align);
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priv->align = g_memdup (align_groups, n_groups * sizeof (gboolean));
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}
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void
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_gtk_cell_area_box_context_push_group_width (GtkCellAreaBoxContext *box_context,
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gint group_idx,
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gint minimum_width,
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gint natural_width)
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{
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GtkCellAreaBoxContextPrivate *priv;
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CachedSize *size;
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gboolean grew = FALSE;
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g_return_if_fail (GTK_IS_CELL_AREA_BOX_CONTEXT (box_context));
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priv = box_context->priv;
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g_return_if_fail (group_idx < priv->base_widths->len);
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size = &g_array_index (priv->base_widths, CachedSize, group_idx);
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if (minimum_width > size->min_size)
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{
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size->min_size = minimum_width;
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grew = TRUE;
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}
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if (natural_width > size->nat_size)
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{
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size->nat_size = natural_width;
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grew = TRUE;
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}
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if (grew)
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_gtk_cell_area_box_context_sum (box_context, GTK_ORIENTATION_HORIZONTAL, -1, NULL, NULL);
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}
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void
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_gtk_cell_area_box_context_push_group_height_for_width (GtkCellAreaBoxContext *box_context,
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gint group_idx,
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gint for_width,
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gint minimum_height,
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gint natural_height)
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{
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GtkCellAreaBoxContextPrivate *priv;
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GArray *group_array;
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CachedSize *size;
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g_return_if_fail (GTK_IS_CELL_AREA_BOX_CONTEXT (box_context));
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priv = box_context->priv;
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g_return_if_fail (group_idx < priv->base_widths->len);
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group_array = g_hash_table_lookup (priv->heights, GINT_TO_POINTER (for_width));
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if (!group_array)
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{
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group_array = group_array_new (box_context);
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g_hash_table_insert (priv->heights, GINT_TO_POINTER (for_width), group_array);
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}
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size = &g_array_index (group_array, CachedSize, group_idx);
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size->min_size = MAX (size->min_size, minimum_height);
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size->nat_size = MAX (size->nat_size, natural_height);
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}
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void
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_gtk_cell_area_box_context_push_group_height (GtkCellAreaBoxContext *box_context,
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gint group_idx,
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gint minimum_height,
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gint natural_height)
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{
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GtkCellAreaBoxContextPrivate *priv;
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CachedSize *size;
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gboolean grew = FALSE;
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g_return_if_fail (GTK_IS_CELL_AREA_BOX_CONTEXT (box_context));
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priv = box_context->priv;
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g_return_if_fail (group_idx < priv->base_heights->len);
|
|
|
|
size = &g_array_index (priv->base_heights, CachedSize, group_idx);
|
|
if (minimum_height > size->min_size)
|
|
{
|
|
size->min_size = minimum_height;
|
|
grew = TRUE;
|
|
}
|
|
if (natural_height > size->nat_size)
|
|
{
|
|
size->nat_size = natural_height;
|
|
grew = TRUE;
|
|
}
|
|
|
|
if (grew)
|
|
_gtk_cell_area_box_context_sum (box_context, GTK_ORIENTATION_VERTICAL, -1, NULL, NULL);
|
|
}
|
|
|
|
void
|
|
_gtk_cell_area_box_context_push_group_width_for_height (GtkCellAreaBoxContext *box_context,
|
|
gint group_idx,
|
|
gint for_height,
|
|
gint minimum_width,
|
|
gint natural_width)
|
|
{
|
|
GtkCellAreaBoxContextPrivate *priv;
|
|
GArray *group_array;
|
|
CachedSize *size;
|
|
|
|
g_return_if_fail (GTK_IS_CELL_AREA_BOX_CONTEXT (box_context));
|
|
|
|
priv = box_context->priv;
|
|
g_return_if_fail (group_idx < priv->base_widths->len);
|
|
|
|
group_array = g_hash_table_lookup (priv->widths, GINT_TO_POINTER (for_height));
|
|
if (!group_array)
|
|
{
|
|
group_array = group_array_new (box_context);
|
|
g_hash_table_insert (priv->widths, GINT_TO_POINTER (for_height), group_array);
|
|
}
|
|
|
|
size = &g_array_index (group_array, CachedSize, group_idx);
|
|
size->min_size = MAX (size->min_size, minimum_width);
|
|
size->nat_size = MAX (size->nat_size, natural_width);
|
|
}
|
|
|
|
void
|
|
_gtk_cell_area_box_context_get_group_width (GtkCellAreaBoxContext *box_context,
|
|
gint group_idx,
|
|
gint *minimum_width,
|
|
gint *natural_width)
|
|
{
|
|
GtkCellAreaBoxContextPrivate *priv;
|
|
CachedSize *size;
|
|
|
|
g_return_if_fail (GTK_IS_CELL_AREA_BOX_CONTEXT (box_context));
|
|
|
|
priv = box_context->priv;
|
|
g_return_if_fail (group_idx < priv->base_widths->len);
|
|
|
|
size = &g_array_index (priv->base_widths, CachedSize, group_idx);
|
|
|
|
if (minimum_width)
|
|
*minimum_width = size->min_size;
|
|
|
|
if (natural_width)
|
|
*natural_width = size->nat_size;
|
|
}
|
|
|
|
void
|
|
_gtk_cell_area_box_context_get_group_height_for_width (GtkCellAreaBoxContext *box_context,
|
|
gint group_idx,
|
|
gint for_width,
|
|
gint *minimum_height,
|
|
gint *natural_height)
|
|
{
|
|
GtkCellAreaBoxContextPrivate *priv;
|
|
GArray *group_array;
|
|
|
|
g_return_if_fail (GTK_IS_CELL_AREA_BOX_CONTEXT (box_context));
|
|
|
|
priv = box_context->priv;
|
|
g_return_if_fail (group_idx < priv->base_widths->len);
|
|
|
|
group_array = g_hash_table_lookup (priv->heights, GINT_TO_POINTER (for_width));
|
|
|
|
if (group_array)
|
|
{
|
|
CachedSize *size = &g_array_index (group_array, CachedSize, group_idx);
|
|
|
|
if (minimum_height)
|
|
*minimum_height = size->min_size;
|
|
|
|
if (natural_height)
|
|
*natural_height = size->nat_size;
|
|
}
|
|
else
|
|
{
|
|
if (minimum_height)
|
|
*minimum_height = -1;
|
|
|
|
if (natural_height)
|
|
*natural_height = -1;
|
|
}
|
|
}
|
|
|
|
void
|
|
_gtk_cell_area_box_context_get_group_height (GtkCellAreaBoxContext *box_context,
|
|
gint group_idx,
|
|
gint *minimum_height,
|
|
gint *natural_height)
|
|
{
|
|
GtkCellAreaBoxContextPrivate *priv;
|
|
CachedSize *size;
|
|
|
|
g_return_if_fail (GTK_IS_CELL_AREA_BOX_CONTEXT (box_context));
|
|
|
|
priv = box_context->priv;
|
|
g_return_if_fail (group_idx < priv->base_heights->len);
|
|
|
|
size = &g_array_index (priv->base_heights, CachedSize, group_idx);
|
|
|
|
if (minimum_height)
|
|
*minimum_height = size->min_size;
|
|
|
|
if (natural_height)
|
|
*natural_height = size->nat_size;
|
|
}
|
|
|
|
void
|
|
_gtk_cell_area_box_context_get_group_width_for_height (GtkCellAreaBoxContext *box_context,
|
|
gint group_idx,
|
|
gint for_height,
|
|
gint *minimum_width,
|
|
gint *natural_width)
|
|
{
|
|
GtkCellAreaBoxContextPrivate *priv;
|
|
GArray *group_array;
|
|
|
|
g_return_if_fail (GTK_IS_CELL_AREA_BOX_CONTEXT (box_context));
|
|
|
|
priv = box_context->priv;
|
|
g_return_if_fail (group_idx < priv->base_widths->len);
|
|
|
|
group_array = g_hash_table_lookup (priv->widths, GINT_TO_POINTER (for_height));
|
|
|
|
if (group_array)
|
|
{
|
|
CachedSize *size = &g_array_index (group_array, CachedSize, group_idx);
|
|
|
|
if (minimum_width)
|
|
*minimum_width = size->min_size;
|
|
|
|
if (natural_width)
|
|
*natural_width = size->nat_size;
|
|
}
|
|
else
|
|
{
|
|
if (minimum_width)
|
|
*minimum_width = -1;
|
|
|
|
if (natural_width)
|
|
*natural_width = -1;
|
|
}
|
|
}
|
|
|
|
static GtkRequestedSize *
|
|
_gtk_cell_area_box_context_get_requests (GtkCellAreaBoxContext *box_context,
|
|
GtkCellAreaBox *area,
|
|
GtkOrientation orientation,
|
|
gint for_size,
|
|
gint *n_requests)
|
|
{
|
|
GtkCellAreaBoxContextPrivate *priv = box_context->priv;
|
|
GtkRequestedSize *requests;
|
|
GArray *array;
|
|
CachedSize *size;
|
|
gint visible_groups = 0;
|
|
gint last_aligned_group_idx = 0;
|
|
gint i, j;
|
|
|
|
/* Get the last visible aligned group
|
|
* (we need to get space at least up till this group) */
|
|
for (i = priv->base_widths->len - 1; i >= 0; i--)
|
|
{
|
|
if (priv->align[i] &&
|
|
_gtk_cell_area_box_group_visible (area, i))
|
|
break;
|
|
}
|
|
last_aligned_group_idx = i >= 0 ? i : 0;
|
|
|
|
priv = box_context->priv;
|
|
array = get_array (box_context, orientation, for_size);
|
|
|
|
for (i = 0; i < array->len; i++)
|
|
{
|
|
size = &g_array_index (array, CachedSize, i);
|
|
|
|
if (size->nat_size > 0 &&
|
|
(i <= last_aligned_group_idx ||
|
|
_gtk_cell_area_box_group_visible (area, i)))
|
|
visible_groups++;
|
|
}
|
|
|
|
requests = g_new (GtkRequestedSize, visible_groups);
|
|
|
|
for (j = 0, i = 0; i < array->len; i++)
|
|
{
|
|
size = &g_array_index (array, CachedSize, i);
|
|
|
|
if (size->nat_size > 0 &&
|
|
(i <= last_aligned_group_idx ||
|
|
_gtk_cell_area_box_group_visible (area, i)))
|
|
{
|
|
requests[j].data = GINT_TO_POINTER (i);
|
|
requests[j].minimum_size = size->min_size;
|
|
requests[j].natural_size = size->nat_size;
|
|
j++;
|
|
}
|
|
}
|
|
|
|
if (n_requests)
|
|
*n_requests = visible_groups;
|
|
|
|
return requests;
|
|
}
|
|
|
|
static GtkCellAreaBoxAllocation *
|
|
allocate_for_orientation (GtkCellAreaBoxContext *context,
|
|
GtkCellAreaBox *area,
|
|
GtkOrientation orientation,
|
|
gint spacing,
|
|
gint size,
|
|
gint for_size,
|
|
gint *n_allocs)
|
|
{
|
|
GtkCellAreaBoxContextPrivate *priv = context->priv;
|
|
GtkCellAreaBoxAllocation *allocs;
|
|
GtkRequestedSize *sizes;
|
|
gint n_expand_groups = 0;
|
|
gint i, n_groups, position, vis_position;
|
|
gint extra_size, extra_extra;
|
|
gint avail_size = size;
|
|
|
|
sizes = _gtk_cell_area_box_context_get_requests (context, area, orientation, for_size, &n_groups);
|
|
n_expand_groups = count_expand_groups (context);
|
|
|
|
/* First start by naturally allocating space among groups */
|
|
avail_size -= (n_groups - 1) * spacing;
|
|
for (i = 0; i < n_groups; i++)
|
|
avail_size -= sizes[i].minimum_size;
|
|
|
|
if (avail_size > 0)
|
|
avail_size = gtk_distribute_natural_allocation (avail_size, n_groups, sizes);
|
|
else
|
|
avail_size = 0;
|
|
|
|
/* Calculate/distribute expand for groups */
|
|
if (n_expand_groups > 0)
|
|
{
|
|
extra_size = avail_size / n_expand_groups;
|
|
extra_extra = avail_size % n_expand_groups;
|
|
}
|
|
else
|
|
extra_size = extra_extra = 0;
|
|
|
|
allocs = g_new (GtkCellAreaBoxAllocation, n_groups);
|
|
|
|
for (vis_position = 0, position = 0, i = 0; i < n_groups; i++)
|
|
{
|
|
allocs[i].group_idx = GPOINTER_TO_INT (sizes[i].data);
|
|
|
|
if (priv->align[allocs[i].group_idx])
|
|
vis_position = position;
|
|
|
|
allocs[i].position = vis_position;
|
|
allocs[i].size = sizes[i].minimum_size;
|
|
|
|
if (group_expands (context, allocs[i].group_idx))
|
|
{
|
|
allocs[i].size += extra_size;
|
|
if (extra_extra)
|
|
{
|
|
allocs[i].size++;
|
|
extra_extra--;
|
|
}
|
|
}
|
|
|
|
position += allocs[i].size;
|
|
position += spacing;
|
|
|
|
if (_gtk_cell_area_box_group_visible (area, allocs[i].group_idx))
|
|
{
|
|
vis_position += allocs[i].size;
|
|
vis_position += spacing;
|
|
}
|
|
}
|
|
|
|
if (n_allocs)
|
|
*n_allocs = n_groups;
|
|
|
|
g_free (sizes);
|
|
|
|
return allocs;
|
|
}
|
|
|
|
GtkRequestedSize *
|
|
_gtk_cell_area_box_context_get_widths (GtkCellAreaBoxContext *box_context,
|
|
gint *n_widths)
|
|
{
|
|
GtkCellAreaBox *area = (GtkCellAreaBox *)gtk_cell_area_context_get_area (GTK_CELL_AREA_CONTEXT (box_context));
|
|
|
|
return _gtk_cell_area_box_context_get_requests (box_context, area, GTK_ORIENTATION_HORIZONTAL, -1, n_widths);
|
|
}
|
|
|
|
GtkRequestedSize *
|
|
_gtk_cell_area_box_context_get_heights (GtkCellAreaBoxContext *box_context,
|
|
gint *n_heights)
|
|
{
|
|
GtkCellAreaBox *area = (GtkCellAreaBox *)gtk_cell_area_context_get_area (GTK_CELL_AREA_CONTEXT (box_context));
|
|
|
|
return _gtk_cell_area_box_context_get_requests (box_context, area, GTK_ORIENTATION_VERTICAL, -1, n_heights);
|
|
}
|
|
|
|
GtkCellAreaBoxAllocation *
|
|
_gtk_cell_area_box_context_get_orientation_allocs (GtkCellAreaBoxContext *context,
|
|
gint *n_allocs)
|
|
{
|
|
GtkCellAreaContext *ctx = GTK_CELL_AREA_CONTEXT (context);
|
|
GtkCellAreaBox *area;
|
|
GtkOrientation orientation;
|
|
gint spacing, width, height, alloc_count = 0;
|
|
GtkCellAreaBoxAllocation *allocs = NULL;
|
|
|
|
area = (GtkCellAreaBox *)gtk_cell_area_context_get_area (ctx);
|
|
orientation = gtk_orientable_get_orientation (GTK_ORIENTABLE (area));
|
|
spacing = gtk_cell_area_box_get_spacing (area);
|
|
|
|
gtk_cell_area_context_get_allocation (ctx, &width, &height);
|
|
|
|
if (orientation == GTK_ORIENTATION_HORIZONTAL && width > 0)
|
|
allocs = allocate_for_orientation (context, area, orientation,
|
|
spacing, width, height,
|
|
&alloc_count);
|
|
else if (orientation == GTK_ORIENTATION_VERTICAL && height > 0)
|
|
allocs = allocate_for_orientation (context, area, orientation,
|
|
spacing, height, width,
|
|
&alloc_count);
|
|
|
|
*n_allocs = alloc_count;
|
|
|
|
return allocs;
|
|
}
|