A new class EekClutterDrawingContext maintains the context used to draw actors. Single EekClutterDrawingContext instance is shared by EekClutterKeyboard, EekClutterSection, EekClutterKey, and EekClutterKeyActor.
		
			
				
	
	
		
			138 lines
		
	
	
		
			4.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			138 lines
		
	
	
		
			4.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/* 
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 * Copyright (C) 2010 Daiki Ueno <ueno@unixuser.org>
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 * Copyright (C) 2010 Red Hat, Inc.
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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 Lesser General Public License
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 * as published by the Free Software Foundation; either version 2 of
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 * 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, but
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 * 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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 * Lesser General Public License for more details.
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 * 
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with this library; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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 * 02110-1301 USA
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 */
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#include <string.h>
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif  /* HAVE_CONFIG_H */
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#include "eek-clutter-drawing-context.h"
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G_DEFINE_TYPE (EekClutterDrawingContext, eek_clutter_drawing_context,
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               G_TYPE_INITIALLY_UNOWNED);
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#define EEK_CLUTTER_DRAWING_CONTEXT_GET_PRIVATE(obj)                                  \
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    (G_TYPE_INSTANCE_GET_PRIVATE ((obj), EEK_TYPE_CLUTTER_DRAWING_CONTEXT, EekClutterDrawingContextPrivate))
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struct _EekClutterDrawingContextPrivate
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{
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    /* outline pointer -> ClutterTexture */
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    GHashTable *outline_textures;
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    /* keysym category -> PangoFontDescription * */
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    PangoFontDescription *category_fonts[EEK_KEYSYM_CATEGORY_LAST];
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};
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static void
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eek_clutter_drawing_context_dispose (GObject *object)
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{
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    EekClutterDrawingContextPrivate *priv =
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        EEK_CLUTTER_DRAWING_CONTEXT_GET_PRIVATE(object);
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    if (priv->outline_textures) {
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        g_hash_table_unref (priv->outline_textures);
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        priv->outline_textures = NULL;
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    }
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}
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static void
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eek_clutter_drawing_context_finalize (GObject *object)
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{
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    EekClutterDrawingContextPrivate *priv =
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        EEK_CLUTTER_DRAWING_CONTEXT_GET_PRIVATE(object);
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    gint i;
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    for (i = 0; i < EEK_KEYSYM_CATEGORY_LAST; i++)
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        pango_font_description_free (priv->category_fonts[i]);
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}
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static void
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eek_clutter_drawing_context_class_init (EekClutterDrawingContextClass *klass)
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{
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    GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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    g_type_class_add_private (gobject_class,
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                              sizeof (EekClutterDrawingContextPrivate));
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    gobject_class->finalize = eek_clutter_drawing_context_finalize;
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}
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static void
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eek_clutter_drawing_context_init (EekClutterDrawingContext *self)
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{
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    EekClutterDrawingContextPrivate *priv;
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    priv = self->priv = EEK_CLUTTER_DRAWING_CONTEXT_GET_PRIVATE(self);
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    priv->outline_textures = g_hash_table_new (g_direct_hash, g_direct_equal);
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    memset (priv->category_fonts, 0, sizeof *priv->category_fonts);
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}
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void
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eek_clutter_drawing_context_set_outline_texture
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 (EekClutterDrawingContext *context,
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  EekOutline               *outline,
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  ClutterActor             *texture)
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{
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    EekClutterDrawingContextPrivate *priv =
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        EEK_CLUTTER_DRAWING_CONTEXT_GET_PRIVATE(context);
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    g_return_if_fail (priv);
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    g_hash_table_insert (context->priv->outline_textures, outline, texture);
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}
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ClutterActor *
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eek_clutter_drawing_context_get_outline_texture
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 (EekClutterDrawingContext *context,
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  EekOutline               *outline)
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{
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    EekClutterDrawingContextPrivate *priv =
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        EEK_CLUTTER_DRAWING_CONTEXT_GET_PRIVATE(context);
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    g_return_val_if_fail (priv, NULL);
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    return g_hash_table_lookup (context->priv->outline_textures, outline);
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}
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void
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eek_clutter_drawing_context_set_category_font
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 (EekClutterDrawingContext *context,
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  EekKeysymCategory         category,
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  PangoFontDescription     *font)
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{
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    EekClutterDrawingContextPrivate *priv =
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        EEK_CLUTTER_DRAWING_CONTEXT_GET_PRIVATE(context);
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    g_return_if_fail (priv);
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    priv->category_fonts[category] = pango_font_description_copy (font);
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}
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PangoFontDescription *
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eek_clutter_drawing_context_get_category_font
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 (EekClutterDrawingContext *context,
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  EekKeysymCategory         category)
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{
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    EekClutterDrawingContextPrivate *priv =
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        EEK_CLUTTER_DRAWING_CONTEXT_GET_PRIVATE(context);
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    g_return_val_if_fail (priv, NULL);
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    return priv->category_fonts[category];
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}
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EekClutterDrawingContext *
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eek_clutter_drawing_context_new (void)
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{
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    return g_object_new (EEK_TYPE_CLUTTER_DRAWING_CONTEXT, NULL);
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}
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