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e4e318c9f8
glib already has a data type to manage a list of callbacks called a GHookList so we might as well use it instead of maintaining Cogl's own type. The glib version may be slightly more efficient because it avoids using a GList and instead encodes the prev and next pointers directly in the GHook structure. It also has more features than CoglCallbackList.
94 lines
2.8 KiB
C
94 lines
2.8 KiB
C
/*
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* Clutter.
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*
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* An OpenGL based 'interactive canvas' library.
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*
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* Authored By Matthew Allum <mallum@openedhand.com>
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*
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* Copyright (C) 2008 OpenedHand
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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
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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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* 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, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __COGL_PANGO_GLYPH_CACHE_H__
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#define __COGL_PANGO_GLYPH_CACHE_H__
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#include <glib.h>
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#include <cogl/cogl.h>
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#include <pango/pango-font.h>
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G_BEGIN_DECLS
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typedef struct _CoglPangoGlyphCache CoglPangoGlyphCache;
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typedef struct _CoglPangoGlyphCacheValue CoglPangoGlyphCacheValue;
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struct _CoglPangoGlyphCacheValue
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{
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CoglHandle texture;
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float tx1;
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float ty1;
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float tx2;
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float ty2;
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int tx_pixel;
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int ty_pixel;
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int draw_x;
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int draw_y;
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int draw_width;
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int draw_height;
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/* This will be set to TRUE when the glyph atlas is reorganized
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which means the glyph will need to be redrawn */
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gboolean dirty;
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};
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typedef void (* CoglPangoGlyphCacheDirtyFunc) (PangoFont *font,
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PangoGlyph glyph,
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CoglPangoGlyphCacheValue *value);
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CoglPangoGlyphCache *
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cogl_pango_glyph_cache_new (void);
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void
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cogl_pango_glyph_cache_free (CoglPangoGlyphCache *cache);
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CoglPangoGlyphCacheValue *
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cogl_pango_glyph_cache_lookup (CoglPangoGlyphCache *cache,
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gboolean create,
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PangoFont *font,
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PangoGlyph glyph);
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void
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cogl_pango_glyph_cache_clear (CoglPangoGlyphCache *cache);
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void
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_cogl_pango_glyph_cache_add_reorganize_callback (CoglPangoGlyphCache *cache,
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GHookFunc func,
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void *user_data);
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void
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_cogl_pango_glyph_cache_remove_reorganize_callback (CoglPangoGlyphCache *cache,
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GHookFunc func,
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void *user_data);
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void
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_cogl_pango_glyph_cache_set_dirty_glyphs (CoglPangoGlyphCache *cache,
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CoglPangoGlyphCacheDirtyFunc func);
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G_END_DECLS
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#endif /* __COGL_PANGO_GLYPH_CACHE_H__ */
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