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lightning-sunbird  0.9+nobinonly
pango-engine.h
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00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
00002  * Pango
00003  * pango-engine.h: Module handling
00004  *
00005  * ***** BEGIN LICENSE BLOCK *****
00006  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00007  *
00008  * The contents of this file are subject to the Mozilla Public License Version
00009  * 1.1 (the "License"); you may not use this file except in compliance with
00010  * the License. You may obtain a copy of the License at
00011  * http://www.mozilla.org/MPL/
00012  *
00013  * Software distributed under the License is distributed on an "AS IS" basis,
00014  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00015  * for the specific language governing rights and limitations under the
00016  * License.
00017  *
00018  * The Original Code is the Pango Library (www.pango.org).
00019  *
00020  * The Initial Developer of the Original Code is
00021  * Red Hat Software.
00022  * Portions created by the Initial Developer are Copyright (C) 2000
00023  * the Initial Developer. All Rights Reserved.
00024  *
00025  * Contributor(s):
00026  *
00027  * Alternatively, the contents of this file may be used under the terms of
00028  * either of the GNU General Public License Version 2 or later (the "GPL"),
00029  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00030  * in which case the provisions of the GPL or the LGPL are applicable instead
00031  * of those above. If you wish to allow use of your version of this file only
00032  * under the terms of either the GPL or the LGPL, and not to allow others to
00033  * use your version of this file under the terms of the MPL, indicate your
00034  * decision by deleting the provisions above and replace them with the notice
00035  * and other provisions required by the GPL or the LGPL. If you do not delete
00036  * the provisions above, a recipient may use your version of this file under
00037  * the terms of any one of the MPL, the GPL or the LGPL.
00038  *
00039  * ***** END LICENSE BLOCK ***** */
00040 
00041 #ifndef __PANGO_ENGINE_H__
00042 #define __PANGO_ENGINE_H__
00043 
00044 #include "pango-types.h"
00045 #include "pango-glyph.h"
00046 #include "pango-coverage.h"
00047 
00048 #ifdef __cplusplus
00049 extern "C" {
00050 #endif /* __cplusplus */
00051 
00052 /* Module API */
00053 
00054 #define PANGO_ENGINE_TYPE_SHAPE "PangoliteEngineShape"
00055 #define PANGO_RENDER_TYPE_X    "PangoliteRenderX"
00056 #define PANGO_RENDER_TYPE_NONE "PangoliteRenderNone"
00057 
00058 typedef struct _PangoliteEngineInfo PangoliteEngineInfo;
00059 typedef struct _PangoliteEngineRange PangoliteEngineRange;
00060 typedef struct _PangoliteEngine PangoliteEngine;
00061 
00062 struct _PangoliteEngineRange 
00063 {
00064   guint32 start;
00065   guint32 end;
00066   gchar   *langs;
00067 };
00068 
00069 struct _PangoliteEngineInfo
00070 {
00071   gchar            *id;
00072   gchar            *engine_type;
00073   gchar            *render_type;
00074   PangoliteEngineRange *ranges;
00075   gint             n_ranges;
00076 };
00077 
00078 struct _PangoliteEngine
00079 {
00080   gchar *id;
00081   gchar *type;
00082   gint  length;
00083 };
00084 
00085 struct _PangoliteEngineShape
00086 {
00087   PangoliteEngine engine;
00088   void (*script_shape) (const char       *fontCharset, 
00089                         const gunichar2  *text, 
00090                         int              length, 
00091                         PangoliteAnalysis    *analysis, 
00092                         PangoliteGlyphString *glyphs);
00093   PangoliteCoverage *(*get_coverage) (const char *fontCharset, const char *lang);
00094 
00095 };
00096 
00097 /* A module should export the following functions */
00098 void         script_engine_list(PangoliteEngineInfo **engines, int *n_engines);
00099 PangoliteEngine *script_engine_load(const char *id);
00100 void         script_engine_unload(PangoliteEngine *engine);
00101 
00102 #ifdef __cplusplus
00103 }
00104 #endif /* __cplusplus */
00105 
00106 #endif /* __PANGO_ENGINE_H__ */