11f8dfe3f4
The interaction between this class and GtkCellAreaBox could use some optimization, maybe the cells and their sizes should be returned as a list and iterated over at the same time as requesting sizes instead of the hash table approach currently taken, however the code is clean this way for now.
475 lines
14 KiB
C
475 lines
14 KiB
C
/* gtkcellareaboxiter.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 "gtkcellareaboxiter.h"
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/* GObjectClass */
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static void gtk_cell_area_box_iter_finalize (GObject *object);
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/* GtkCellAreaIterClass */
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static void gtk_cell_area_box_iter_flush_preferred_width (GtkCellAreaIter *iter);
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static void gtk_cell_area_box_iter_flush_preferred_height_for_width (GtkCellAreaIter *iter,
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gint width);
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static void gtk_cell_area_box_iter_flush_preferred_height (GtkCellAreaIter *iter);
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static void gtk_cell_area_box_iter_flush_preferred_width_for_height (GtkCellAreaIter *iter,
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gint height);
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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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static CachedSize *cached_size_new (gint min_size, gint nat_size);
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static void cached_size_free (CachedSize *size);
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struct _GtkCellAreaBoxIterPrivate
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{
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/* Table of per renderer CachedSizes */
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GHashTable *base_widths;
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GHashTable *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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};
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G_DEFINE_TYPE (GtkCellAreaBoxIter, gtk_cell_area_box_iter, GTK_TYPE_CELL_AREA_ITER);
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static void
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gtk_cell_area_box_iter_init (GtkCellAreaBoxIter *box_iter)
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{
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GtkCellAreaBoxIterPrivate *priv;
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box_iter->priv = G_TYPE_INSTANCE_GET_PRIVATE (box_iter,
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GTK_TYPE_CELL_AREA_BOX_ITER,
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GtkCellAreaBoxIterPrivate);
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priv = box_iter->priv;
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priv->base_widths = g_hash_table_new_full (g_direct_hash, g_direct_equal,
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NULL, (GDestroyNotify)cached_size_free);
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priv->base_heights = g_hash_table_new_full (g_direct_hash, g_direct_equal,
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NULL, (GDestroyNotify)cached_size_free);
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priv->widths = g_hash_table_new_full (g_direct_hash, g_direct_equal,
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NULL, (GDestroyNotify)g_hash_table_destroy);
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priv->heights = g_hash_table_new_full (g_direct_hash, g_direct_equal,
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NULL, (GDestroyNotify)g_hash_table_destroy);
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}
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static void
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gtk_cell_area_box_iter_class_init (GtkCellAreaBoxIterClass *class)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (class);
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GtkCellAreaIterClass *iter_class = GTK_CELL_AREA_ITER_CLASS (class);
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/* GObjectClass */
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object_class->finalize = gtk_cell_area_box_iter_finalize;
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iter_class->flush_preferred_width = gtk_cell_area_box_iter_flush_preferred_width;
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iter_class->flush_preferred_height_for_width = gtk_cell_area_box_iter_flush_preferred_height_for_width;
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iter_class->flush_preferred_height = gtk_cell_area_box_iter_flush_preferred_height;
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iter_class->flush_preferred_width_for_height = gtk_cell_area_box_iter_flush_preferred_width_for_height;
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g_type_class_add_private (object_class, sizeof (GtkCellAreaBoxIterPrivate));
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}
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/*************************************************************
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* Cached Sizes *
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*************************************************************/
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static CachedSize *
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cached_size_new (gint min_size,
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gint nat_size)
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{
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CachedSize *size = g_slice_new (CachedSize);
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size->min_size = min_size;
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size->nat_size = nat_size;
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return size;
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}
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static void
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cached_size_free (CachedSize *size)
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{
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g_slice_free (CachedSize, size);
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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_iter_finalize (GObject *object)
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{
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GtkCellAreaBoxIter *box_iter = GTK_CELL_AREA_BOX_ITER (object);
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GtkCellAreaBoxIterPrivate *priv = box_iter->priv;
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g_hash_table_destroy (priv->base_widths);
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g_hash_table_destroy (priv->base_heights);
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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_OBJECT_CLASS (gtk_cell_area_box_iter_parent_class)->finalize (object);
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}
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/*************************************************************
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* GtkCellAreaIterClass *
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*************************************************************/
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static void
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gtk_cell_area_box_iter_flush_preferred_width (GtkCellAreaIter *iter)
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{
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GtkCellAreaBoxIter *box_iter = GTK_CELL_AREA_BOX_ITER (iter);
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GtkCellAreaBoxIterPrivate *priv = box_iter->priv;
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g_hash_table_remove_all (priv->base_widths);
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GTK_CELL_AREA_ITER_GET_CLASS
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(gtk_cell_area_box_iter_parent_class)->flush_preferred_width (iter);
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}
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static void
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gtk_cell_area_box_iter_flush_preferred_height_for_width (GtkCellAreaIter *iter,
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gint width)
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{
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GtkCellAreaBoxIter *box_iter = GTK_CELL_AREA_BOX_ITER (iter);
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GtkCellAreaBoxIterPrivate *priv = box_iter->priv;
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/* Flush all sizes for special -1 value */
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if (width < 0)
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g_hash_table_remove_all (priv->heights);
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else
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g_hash_table_remove (priv->heights, GINT_TO_POINTER (width));
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GTK_CELL_AREA_ITER_GET_CLASS
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(gtk_cell_area_box_iter_parent_class)->flush_preferred_height_for_width (iter, width);
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}
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static void
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gtk_cell_area_box_iter_flush_preferred_height (GtkCellAreaIter *iter)
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{
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GtkCellAreaBoxIter *box_iter = GTK_CELL_AREA_BOX_ITER (iter);
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GtkCellAreaBoxIterPrivate *priv = box_iter->priv;
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g_hash_table_remove_all (priv->base_heights);
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GTK_CELL_AREA_ITER_GET_CLASS
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(gtk_cell_area_box_iter_parent_class)->flush_preferred_height (iter);
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}
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static void
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gtk_cell_area_box_iter_flush_preferred_width_for_height (GtkCellAreaIter *iter,
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gint height)
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{
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GtkCellAreaBoxIter *box_iter = GTK_CELL_AREA_BOX_ITER (iter);
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GtkCellAreaBoxIterPrivate *priv = box_iter->priv;
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/* Flush all sizes for special -1 value */
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if (height < 0)
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g_hash_table_remove_all (priv->widths);
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else
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g_hash_table_remove (priv->widths, GINT_TO_POINTER (height));
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GTK_CELL_AREA_ITER_GET_CLASS
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(gtk_cell_area_box_iter_parent_class)->flush_preferred_width_for_height (iter, height);
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}
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/*************************************************************
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* API *
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*************************************************************/
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void
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gtk_cell_area_box_push_cell_width (GtkCellAreaBoxIter *box_iter,
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GtkCellRenderer *renderer,
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gint minimum_width,
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gint natural_width)
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{
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GtkCellAreaBoxIterPrivate *priv;
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CachedSize *size;
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g_return_if_fail (GTK_IS_CELL_AREA_BOX_ITER (box_iter));
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g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
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priv = box_iter->priv;
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size = g_hash_table_lookup (priv->base_widths, renderer);
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if (!size)
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{
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size = cached_size_new (minimum_width, natural_width);
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g_hash_table_insert (priv->base_widths, renderer, size);
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}
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else
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{
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size->min_size = MAX (size->min_size, minimum_width);
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size->nat_size = MAX (size->nat_size, natural_width);
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}
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}
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void
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gtk_cell_area_box_push_cell_height_for_width (GtkCellAreaBoxIter *box_iter,
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GtkCellRenderer *renderer,
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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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GtkCellAreaBoxIterPrivate *priv;
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GHashTable *cell_table;
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CachedSize *size;
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g_return_if_fail (GTK_IS_CELL_AREA_BOX_ITER (box_iter));
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g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
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priv = box_iter->priv;
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cell_table = g_hash_table_lookup (priv->heights, GINT_TO_POINTER (for_width));
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if (!cell_table)
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{
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cell_table = g_hash_table_new_full (g_direct_hash, g_direct_equal,
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NULL, (GDestroyNotify)cached_size_free);
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g_hash_table_insert (priv->heights, GINT_TO_POINTER (for_width), cell_table);
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}
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size = g_hash_table_lookup (cell_table, renderer);
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if (!size)
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{
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size = cached_size_new (minimum_height, natural_height);
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g_hash_table_insert (cell_table, renderer, size);
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}
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else
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{
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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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}
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void
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gtk_cell_area_box_push_cell_height (GtkCellAreaBoxIter *box_iter,
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GtkCellRenderer *renderer,
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gint minimum_height,
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gint natural_height)
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{
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GtkCellAreaBoxIterPrivate *priv;
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CachedSize *size;
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g_return_if_fail (GTK_IS_CELL_AREA_BOX_ITER (box_iter));
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g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
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priv = box_iter->priv;
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size = g_hash_table_lookup (priv->base_heights, renderer);
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if (!size)
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{
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size = cached_size_new (minimum_height, natural_height);
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g_hash_table_insert (priv->base_widths, renderer, size);
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}
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else
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{
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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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}
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void
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gtk_cell_area_box_push_cell_width_for_height (GtkCellAreaBoxIter *box_iter,
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GtkCellRenderer *renderer,
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gint for_height,
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gint minimum_width,
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gint natural_width)
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{
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GtkCellAreaBoxIterPrivate *priv;
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GHashTable *cell_table;
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CachedSize *size;
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g_return_if_fail (GTK_IS_CELL_AREA_BOX_ITER (box_iter));
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g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
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priv = box_iter->priv;
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cell_table = g_hash_table_lookup (priv->widths, GINT_TO_POINTER (for_height));
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if (!cell_table)
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{
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cell_table = g_hash_table_new_full (g_direct_hash, g_direct_equal,
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NULL, (GDestroyNotify)cached_size_free);
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g_hash_table_insert (priv->widths, GINT_TO_POINTER (for_height), cell_table);
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}
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size = g_hash_table_lookup (cell_table, renderer);
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if (!size)
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{
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size = cached_size_new (minimum_width, natural_width);
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g_hash_table_insert (cell_table, renderer, size);
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}
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else
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{
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size->min_size = MAX (size->min_size, minimum_width);
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size->nat_size = MAX (size->nat_size, natural_width);
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}
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}
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void
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gtk_cell_area_box_get_cell_width (GtkCellAreaBoxIter *box_iter,
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GtkCellRenderer *renderer,
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gint *minimum_width,
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gint *natural_width)
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{
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GtkCellAreaBoxIterPrivate *priv;
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CachedSize *size;
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g_return_if_fail (GTK_IS_CELL_AREA_BOX_ITER (box_iter));
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g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
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priv = box_iter->priv;
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size = g_hash_table_lookup (priv->base_widths, renderer);
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if (size)
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{
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if (minimum_width)
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*minimum_width = size->min_size;
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if (natural_width)
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*natural_width = size->nat_size;
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}
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else
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{
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if (minimum_width)
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*minimum_width = -1;
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if (natural_width)
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*natural_width = -1;
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}
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}
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void
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gtk_cell_area_box_get_cell_height_for_width (GtkCellAreaBoxIter *box_iter,
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GtkCellRenderer *renderer,
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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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GtkCellAreaBoxIterPrivate *priv;
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GHashTable *cell_table;
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CachedSize *size = NULL;
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g_return_if_fail (GTK_IS_CELL_AREA_BOX_ITER (box_iter));
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g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
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priv = box_iter->priv;
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cell_table = g_hash_table_lookup (priv->heights, GINT_TO_POINTER (for_width));
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if (cell_table)
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size = g_hash_table_lookup (cell_table, renderer);
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if (size)
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{
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if (minimum_height)
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*minimum_height = size->min_size;
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if (natural_height)
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*natural_height = size->nat_size;
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}
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else
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{
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if (minimum_height)
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*minimum_height = -1;
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if (natural_height)
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*natural_height = -1;
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}
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}
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void
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gtk_cell_area_box_get_cell_height (GtkCellAreaBoxIter *box_iter,
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GtkCellRenderer *renderer,
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gint *minimum_height,
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gint *natural_height)
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{
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GtkCellAreaBoxIterPrivate *priv;
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CachedSize *size;
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g_return_if_fail (GTK_IS_CELL_AREA_BOX_ITER (box_iter));
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g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
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priv = box_iter->priv;
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size = g_hash_table_lookup (priv->base_heights, renderer);
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if (size)
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{
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if (minimum_height)
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*minimum_height = size->min_size;
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if (natural_height)
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*natural_height = size->nat_size;
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}
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else
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{
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if (minimum_height)
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*minimum_height = -1;
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if (natural_height)
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*natural_height = -1;
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}
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}
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void
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gtk_cell_area_box_get_cell_width_for_height (GtkCellAreaBoxIter *box_iter,
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GtkCellRenderer *renderer,
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gint for_height,
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gint *minimum_width,
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gint *natural_width)
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{
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GtkCellAreaBoxIterPrivate *priv;
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GHashTable *cell_table;
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CachedSize *size = NULL;
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g_return_if_fail (GTK_IS_CELL_AREA_BOX_ITER (box_iter));
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g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
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priv = box_iter->priv;
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cell_table = g_hash_table_lookup (priv->widths, GINT_TO_POINTER (for_height));
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if (cell_table)
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size = g_hash_table_lookup (cell_table, renderer);
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if (size)
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{
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if (minimum_width)
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*minimum_width = size->min_size;
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if (natural_width)
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*natural_width = size->nat_size;
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}
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else
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{
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if (minimum_width)
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*minimum_width = -1;
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if (natural_width)
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*natural_width = -1;
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}
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}
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