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+/****************************************************************************\
+ Part of the XeTeX typesetting system
+ copyright (c) 1994-2006 by SIL International
+ written by Jonathan Kew
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL SIL INTERNATIONAL BE LIABLE FOR
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of SIL International
+shall not be used in advertising or otherwise to promote the sale,
+use or other dealings in this Software without prior written
+authorization from SIL International.
+\****************************************************************************/
+
+#ifndef __XeTeXOTLayoutEngine_h
+#define __XeTeXOTLayoutEngine_h
+
+#include "OpenTypeLayoutEngine.h"
+#include "ArabicLayoutEngine.h"
+#include "IndicLayoutEngine.h"
+#include "HanLayoutEngine.h"
+
+#include "XeTeXFontInst.h"
+
+class XeTeXOTLayoutEngine : public OpenTypeLayoutEngine
+{
+public:
+ XeTeXOTLayoutEngine(const LEFontInstance* fontInstance, LETag scriptTag, LETag languageTag,
+ const GlyphSubstitutionTableHeader* gsubTable,
+ const LETag* addFeatures, const LETag* removeFeatures);
+
+ virtual ~XeTeXOTLayoutEngine();
+
+ virtual void adjustFeatures(const LETag* addTags, const LETag* removeTags);
+
+ virtual inline UClassID getDynamicClassID() const { return getStaticClassID(); }
+ static inline UClassID getStaticClassID() { return (UClassID)&fgClassID; }
+
+ static LayoutEngine* LayoutEngineFactory
+ (const XeTeXFontInst* fontInstance,
+ LETag scriptTag, LETag languageTag,
+ const LETag* addFeatures, const LETag* removeFeatures,
+ LEErrorCode &success);
+
+protected:
+ const LETag* fDefaultFeatures;
+
+private:
+ static const char fgClassID;
+
+};
+
+class XeTeXArabicLayoutEngine : public ArabicOpenTypeLayoutEngine
+{
+public:
+ XeTeXArabicLayoutEngine(const LEFontInstance *fontInstance, LETag scriptTag, LETag languageTag,
+ const GlyphSubstitutionTableHeader *gsubTable,
+ const LETag *addFeatures, const LETag *removeFeatures);
+
+ virtual ~XeTeXArabicLayoutEngine();
+
+ virtual void adjustFeatures(const LETag* addTags, const LETag* removeTags);
+
+ virtual inline UClassID getDynamicClassID() const { return getStaticClassID(); }
+ static inline UClassID getStaticClassID() { return (UClassID)&fgClassID; }
+
+private:
+ static const char fgClassID;
+
+ const LETag* fDefaultFeatures;
+};
+
+class XeTeXIndicLayoutEngine : public IndicOpenTypeLayoutEngine
+{
+public:
+ XeTeXIndicLayoutEngine(const LEFontInstance *fontInstance, LETag scriptTag, LETag languageTag,
+ const GlyphSubstitutionTableHeader *gsubTable,
+ const LETag *addFeatures, const LETag *removeFeatures);
+
+ virtual ~XeTeXIndicLayoutEngine();
+
+ virtual void adjustFeatures(const LETag* addTags, const LETag* removeTags);
+
+ virtual inline UClassID getDynamicClassID() const { return getStaticClassID(); }
+ static inline UClassID getStaticClassID() { return (UClassID)&fgClassID; }
+
+private:
+ static const char fgClassID;
+
+ const LETag* fDefaultFeatures;
+};
+
+class XeTeXHanLayoutEngine : public XeTeXOTLayoutEngine
+{
+public:
+ XeTeXHanLayoutEngine(const XeTeXFontInst *fontInstance, LETag scriptTag, LETag languageTag,
+ const GlyphSubstitutionTableHeader *gsubTable,
+ const LETag *addFeatures, const LETag *removeFeatures);
+
+ virtual ~XeTeXHanLayoutEngine();
+
+// virtual void adjustFeatures(const LETag* addTags, const LETag* removeTags);
+
+ virtual inline UClassID getDynamicClassID() const { return getStaticClassID(); }
+ static inline UClassID getStaticClassID() { return (UClassID)&fgClassID; }
+
+private:
+ static const char fgClassID;
+};
+
+#endif
+