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icu46/source/test/letest/cmaps.h

+/***************************************************************************
+*
+*   Copyright (C) 1998-2006, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*
+************************************************************************/
+
+
+#ifndef __CMAPS_H
+#define __CMAPS_H
+
+#include "layout/LETypes.h"
+#include "letest.h"
+#include "sfnt.h"
+
+class CMAPMapper
+{
+public:
+    virtual LEGlyphID unicodeToGlyph(LEUnicode32 unicode32) const = 0;
+
+    virtual ~CMAPMapper();
+
+    static CMAPMapper *createUnicodeMapper(const CMAPTable *cmap);
+
+protected:
+    CMAPMapper(const CMAPTable *cmap);
+
+    CMAPMapper() {};
+
+private:
+    const CMAPTable *fcmap;
+};
+
+class CMAPFormat4Mapper : public CMAPMapper
+{
+public:
+    CMAPFormat4Mapper(const CMAPTable *cmap, const CMAPFormat4Encoding *header);
+
+    virtual ~CMAPFormat4Mapper();
+
+    virtual LEGlyphID unicodeToGlyph(LEUnicode32 unicode32) const;
+
+protected:
+    CMAPFormat4Mapper() {};
+
+private:
+    le_uint16       fEntrySelector;
+    le_uint16       fRangeShift;
+    const le_uint16 *fEndCodes;
+    const le_uint16 *fStartCodes;
+    const le_uint16 *fIdDelta;
+    const le_uint16 *fIdRangeOffset;
+};
+
+class CMAPGroupMapper : public CMAPMapper
+{
+public:
+    CMAPGroupMapper(const CMAPTable *cmap, const CMAPGroup *groups, le_uint32 nGroups);
+
+    virtual ~CMAPGroupMapper();
+
+    virtual LEGlyphID unicodeToGlyph(LEUnicode32 unicode32) const;
+
+protected:
+    CMAPGroupMapper() {};
+
+private:
+    le_int32 fPower;
+    le_int32 fRangeOffset;
+    const CMAPGroup *fGroups;
+};
+
+inline CMAPMapper::CMAPMapper(const CMAPTable *cmap)
+    : fcmap(cmap)
+{
+    // nothing else to do
+}
+
+inline CMAPMapper::~CMAPMapper()
+{
+    DELETE_ARRAY(fcmap);
+}
+
+#endif
+