+++ /dev/null
-/* GTK - The GIMP Toolkit
- * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/*
- * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
- * file for a list of people on the GTK+ Team. See the ChangeLog
- * files for a list of changes. These files are distributed with
- * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
- */
-
-#include "config.h"
-#include "gtkgc.h"
-#include "gtkintl.h"
-
-
-typedef struct _GtkGCKey GtkGCKey;
-typedef struct _GtkGCDrawable GtkGCDrawable;
-
-struct _GtkGCKey
-{
- gint depth;
- GdkColormap *colormap;
- GdkGCValues values;
- GdkGCValuesMask mask;
-};
-
-struct _GtkGCDrawable
-{
- gint depth;
- GdkPixmap *drawable;
-};
-
-
-static void gtk_gc_init (void);
-static GtkGCKey* gtk_gc_key_dup (GtkGCKey *key);
-static void gtk_gc_key_destroy (GtkGCKey *key);
-static gpointer gtk_gc_new (gpointer key);
-static void gtk_gc_destroy (gpointer value);
-static guint gtk_gc_key_hash (gpointer key);
-static guint gtk_gc_value_hash (gpointer value);
-static gint gtk_gc_key_equal (gpointer a,
- gpointer b);
-static guint gtk_gc_drawable_hash (GtkGCDrawable *d);
-static gint gtk_gc_drawable_equal (GtkGCDrawable *a,
- GtkGCDrawable *b);
-
-
-static gint initialize = TRUE;
-static GCache *gc_cache = NULL;
-static GQuark quark_gtk_gc_drawable_ht = 0;
-
-GdkGC*
-gtk_gc_get (gint depth,
- GdkColormap *colormap,
- GdkGCValues *values,
- GdkGCValuesMask values_mask)
-{
- GtkGCKey key;
- GdkGC *gc;
-
- if (initialize)
- gtk_gc_init ();
-
- key.depth = depth;
- key.colormap = colormap;
- key.values = *values;
- key.mask = values_mask;
-
- gc = g_cache_insert (gc_cache, &key);
-
- return gc;
-}
-
-void
-gtk_gc_release (GdkGC *gc)
-{
- if (initialize)
- gtk_gc_init ();
-
- g_cache_remove (gc_cache, gc);
-}
-
-static void
-free_gc_drawable (gpointer data)
-{
- GtkGCDrawable *drawable = data;
- g_object_unref (drawable->drawable);
- g_slice_free (GtkGCDrawable, drawable);
-}
-
-static GHashTable*
-gtk_gc_get_drawable_ht (GdkScreen *screen)
-{
- GHashTable *ht = g_object_get_qdata (G_OBJECT (screen), quark_gtk_gc_drawable_ht);
- if (!ht)
- {
- ht = g_hash_table_new_full ((GHashFunc) gtk_gc_drawable_hash,
- (GEqualFunc) gtk_gc_drawable_equal,
- NULL, free_gc_drawable);
- g_object_set_qdata_full (G_OBJECT (screen),
- quark_gtk_gc_drawable_ht, ht,
- (GDestroyNotify)g_hash_table_destroy);
- }
-
- return ht;
-}
-
-static void
-gtk_gc_init (void)
-{
- initialize = FALSE;
-
- quark_gtk_gc_drawable_ht = g_quark_from_static_string ("gtk-gc-drawable-ht");
-
- gc_cache = g_cache_new ((GCacheNewFunc) gtk_gc_new,
- (GCacheDestroyFunc) gtk_gc_destroy,
- (GCacheDupFunc) gtk_gc_key_dup,
- (GCacheDestroyFunc) gtk_gc_key_destroy,
- (GHashFunc) gtk_gc_key_hash,
- (GHashFunc) gtk_gc_value_hash,
- (GEqualFunc) gtk_gc_key_equal);
-}
-
-static GtkGCKey*
-gtk_gc_key_dup (GtkGCKey *key)
-{
- GtkGCKey *new_key;
-
- new_key = g_slice_new (GtkGCKey);
-
- *new_key = *key;
-
- return new_key;
-}
-
-static void
-gtk_gc_key_destroy (GtkGCKey *key)
-{
- g_slice_free (GtkGCKey, key);
-}
-
-static gpointer
-gtk_gc_new (gpointer key)
-{
- GtkGCKey *keyval;
- GtkGCDrawable *drawable;
- GdkGC *gc;
- GHashTable *ht;
- GdkScreen *screen;
-
- keyval = key;
- screen = gdk_colormap_get_screen (keyval->colormap);
-
- ht = gtk_gc_get_drawable_ht (screen);
- drawable = g_hash_table_lookup (ht, &keyval->depth);
- if (!drawable)
- {
- drawable = g_slice_new (GtkGCDrawable);
- drawable->depth = keyval->depth;
- drawable->drawable = gdk_pixmap_new (gdk_screen_get_root_window (screen),
- 1, 1, drawable->depth);
- g_hash_table_insert (ht, &drawable->depth, drawable);
- }
-
- gc = gdk_gc_new_with_values (drawable->drawable, &keyval->values, keyval->mask);
- gdk_gc_set_colormap (gc, keyval->colormap);
-
- return (gpointer) gc;
-}
-
-static void
-gtk_gc_destroy (gpointer value)
-{
- g_object_unref (value);
-}
-
-static guint
-gtk_gc_key_hash (gpointer key)
-{
- GtkGCKey *keyval;
- guint hash_val;
-
- keyval = key;
- hash_val = 0;
-
- if (keyval->mask & GDK_GC_FOREGROUND)
- {
- hash_val += keyval->values.foreground.pixel;
- }
- if (keyval->mask & GDK_GC_BACKGROUND)
- {
- hash_val += keyval->values.background.pixel;
- }
- if (keyval->mask & GDK_GC_FUNCTION)
- {
- hash_val += (gint) keyval->values.function;
- }
- if (keyval->mask & GDK_GC_FILL)
- {
- hash_val += (gint) keyval->values.fill;
- }
- if (keyval->mask & GDK_GC_TILE)
- {
- hash_val += (gintptr) keyval->values.tile;
- }
- if (keyval->mask & GDK_GC_STIPPLE)
- {
- hash_val += (gintptr) keyval->values.stipple;
- }
- if (keyval->mask & GDK_GC_CLIP_MASK)
- {
- hash_val += (gintptr) keyval->values.clip_mask;
- }
- if (keyval->mask & GDK_GC_SUBWINDOW)
- {
- hash_val += (gint) keyval->values.subwindow_mode;
- }
- if (keyval->mask & GDK_GC_TS_X_ORIGIN)
- {
- hash_val += (gint) keyval->values.ts_x_origin;
- }
- if (keyval->mask & GDK_GC_TS_Y_ORIGIN)
- {
- hash_val += (gint) keyval->values.ts_y_origin;
- }
- if (keyval->mask & GDK_GC_CLIP_X_ORIGIN)
- {
- hash_val += (gint) keyval->values.clip_x_origin;
- }
- if (keyval->mask & GDK_GC_CLIP_Y_ORIGIN)
- {
- hash_val += (gint) keyval->values.clip_y_origin;
- }
- if (keyval->mask & GDK_GC_EXPOSURES)
- {
- hash_val += (gint) keyval->values.graphics_exposures;
- }
- if (keyval->mask & GDK_GC_LINE_WIDTH)
- {
- hash_val += (gint) keyval->values.line_width;
- }
- if (keyval->mask & GDK_GC_LINE_STYLE)
- {
- hash_val += (gint) keyval->values.line_style;
- }
- if (keyval->mask & GDK_GC_CAP_STYLE)
- {
- hash_val += (gint) keyval->values.cap_style;
- }
- if (keyval->mask & GDK_GC_JOIN_STYLE)
- {
- hash_val += (gint) keyval->values.join_style;
- }
-
- return hash_val;
-}
-
-static guint
-gtk_gc_value_hash (gpointer value)
-{
- return (gulong) value;
-}
-
-static gboolean
-gtk_gc_key_equal (gpointer a,
- gpointer b)
-{
- GtkGCKey *akey;
- GtkGCKey *bkey;
- GdkGCValues *avalues;
- GdkGCValues *bvalues;
-
- akey = a;
- bkey = b;
-
- avalues = &akey->values;
- bvalues = &bkey->values;
-
- if (akey->mask != bkey->mask)
- return FALSE;
-
- if (akey->depth != bkey->depth)
- return FALSE;
-
- if (akey->colormap != bkey->colormap)
- return FALSE;
-
- if (akey->mask & GDK_GC_FOREGROUND)
- {
- if (avalues->foreground.pixel != bvalues->foreground.pixel)
- return FALSE;
- }
- if (akey->mask & GDK_GC_BACKGROUND)
- {
- if (avalues->background.pixel != bvalues->background.pixel)
- return FALSE;
- }
- if (akey->mask & GDK_GC_FUNCTION)
- {
- if (avalues->function != bvalues->function)
- return FALSE;
- }
- if (akey->mask & GDK_GC_FILL)
- {
- if (avalues->fill != bvalues->fill)
- return FALSE;
- }
- if (akey->mask & GDK_GC_TILE)
- {
- if (avalues->tile != bvalues->tile)
- return FALSE;
- }
- if (akey->mask & GDK_GC_STIPPLE)
- {
- if (avalues->stipple != bvalues->stipple)
- return FALSE;
- }
- if (akey->mask & GDK_GC_CLIP_MASK)
- {
- if (avalues->clip_mask != bvalues->clip_mask)
- return FALSE;
- }
- if (akey->mask & GDK_GC_SUBWINDOW)
- {
- if (avalues->subwindow_mode != bvalues->subwindow_mode)
- return FALSE;
- }
- if (akey->mask & GDK_GC_TS_X_ORIGIN)
- {
- if (avalues->ts_x_origin != bvalues->ts_x_origin)
- return FALSE;
- }
- if (akey->mask & GDK_GC_TS_Y_ORIGIN)
- {
- if (avalues->ts_y_origin != bvalues->ts_y_origin)
- return FALSE;
- }
- if (akey->mask & GDK_GC_CLIP_X_ORIGIN)
- {
- if (avalues->clip_x_origin != bvalues->clip_x_origin)
- return FALSE;
- }
- if (akey->mask & GDK_GC_CLIP_Y_ORIGIN)
- {
- if (avalues->clip_y_origin != bvalues->clip_y_origin)
- return FALSE;
- }
- if (akey->mask & GDK_GC_EXPOSURES)
- {
- if (avalues->graphics_exposures != bvalues->graphics_exposures)
- return FALSE;
- }
- if (akey->mask & GDK_GC_LINE_WIDTH)
- {
- if (avalues->line_width != bvalues->line_width)
- return FALSE;
- }
- if (akey->mask & GDK_GC_LINE_STYLE)
- {
- if (avalues->line_style != bvalues->line_style)
- return FALSE;
- }
- if (akey->mask & GDK_GC_CAP_STYLE)
- {
- if (avalues->cap_style != bvalues->cap_style)
- return FALSE;
- }
- if (akey->mask & GDK_GC_JOIN_STYLE)
- {
- if (avalues->join_style != bvalues->join_style)
- return FALSE;
- }
-
- return TRUE;
-}
-
-static guint
-gtk_gc_drawable_hash (GtkGCDrawable *d)
-{
- return d->depth;
-}
-
-static gboolean
-gtk_gc_drawable_equal (GtkGCDrawable *a,
- GtkGCDrawable *b)
-{
- return (a->depth == b->depth);
-}
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