/* 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"
#undef GDK_DISABLE_DEPRECATED
#include "gtkgc.h"
#include "gtkintl.h"
#include "gtkalias.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_FONT)
{
hash_val += gdk_font_id (keyval->values.font);
}
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_FONT)
{
if (!gdk_font_equal (avalues->font, bvalues->font))
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);
}
#define __GTK_GC_C__
#include "gtkaliasdef.c"