/* * * (C) Copyright IBM Corp. 1998-2013 - All Rights Reserved * */ #include "LETypes.h" #include "OpenTypeTables.h" #include "OpenTypeUtilities.h" #include "ClassDefinitionTables.h" #include "LESwaps.h" U_NAMESPACE_BEGIN le_int32 ClassDefinitionTable::getGlyphClass(const LETableReference& base, LEGlyphID glyphID, LEErrorCode &success) const { LEReferenceTo<ClassDefinitionTable> thisRef(base, success); if (LE_FAILURE(success)) return 0; switch(SWAPW(classFormat)) { case 0: return 0; case 1: { const LEReferenceTo<ClassDefFormat1Table> f1Table(thisRef, success); return f1Table->getGlyphClass(f1Table, glyphID, success); } case 2: { const LEReferenceTo<ClassDefFormat2Table> f2Table(thisRef, success); return f2Table->getGlyphClass(f2Table, glyphID, success); } default: return 0; } } le_bool ClassDefinitionTable::hasGlyphClass(const LETableReference &base, le_int32 glyphClass, LEErrorCode &success) const { LEReferenceTo<ClassDefinitionTable> thisRef(base, success); if (LE_FAILURE(success)) return 0; switch(SWAPW(classFormat)) { case 0: return 0; case 1: { const LEReferenceTo<ClassDefFormat1Table> f1Table(thisRef, success); return f1Table->hasGlyphClass(f1Table, glyphClass, success); } case 2: { const LEReferenceTo<ClassDefFormat2Table> f2Table(thisRef, success); return f2Table->hasGlyphClass(f2Table, glyphClass, success); } default: return 0; } } le_int32 ClassDefFormat1Table::getGlyphClass(const LETableReference& base, LEGlyphID glyphID, LEErrorCode &success) const { if(LE_FAILURE(success)) return 0; le_uint16 count = SWAPW(glyphCount); LEReferenceToArrayOf<le_uint16> classValueArrayRef(base, success, &classValueArray[0], count); TTGlyphID ttGlyphID = (TTGlyphID) LE_GET_GLYPH(glyphID); TTGlyphID firstGlyph = SWAPW(startGlyph); TTGlyphID lastGlyph = firstGlyph + count; if (LE_SUCCESS(success) && ttGlyphID >= firstGlyph && ttGlyphID < lastGlyph) { return SWAPW( classValueArrayRef(ttGlyphID - firstGlyph, success) ); } return 0; } le_bool ClassDefFormat1Table::hasGlyphClass(const LETableReference &base, le_int32 glyphClass, LEErrorCode &success) const { if(LE_FAILURE(success)) return 0; le_uint16 count = SWAPW(glyphCount); LEReferenceToArrayOf<le_uint16> classValueArrayRef(base, success, &classValueArray[0], count); int i; for (i = 0; LE_SUCCESS(success)&& (i < count); i += 1) { if (SWAPW(classValueArrayRef(i,success)) == glyphClass) { return TRUE; } } return FALSE; } le_int32 ClassDefFormat2Table::getGlyphClass(const LETableReference& base, LEGlyphID glyphID, LEErrorCode &success) const { if(LE_FAILURE(success)) return 0; TTGlyphID ttGlyph = (TTGlyphID) LE_GET_GLYPH(glyphID); le_uint16 rangeCount = SWAPW(classRangeCount); LEReferenceToArrayOf<GlyphRangeRecord> classRangeRecordArrayRef(base, success, &classRangeRecordArray[0], rangeCount); le_int32 rangeIndex = OpenTypeUtilities::getGlyphRangeIndex(ttGlyph, classRangeRecordArrayRef, success); if (rangeIndex < 0 || LE_FAILURE(success)) { return 0; } return SWAPW(classRangeRecordArrayRef(rangeIndex, success).rangeValue); } le_bool ClassDefFormat2Table::hasGlyphClass(const LETableReference &base, le_int32 glyphClass, LEErrorCode &success) const { if(LE_FAILURE(success)) return 0; le_uint16 rangeCount = SWAPW(classRangeCount); LEReferenceToArrayOf<GlyphRangeRecord> classRangeRecordArrayRef(base, success, &classRangeRecordArray[0], rangeCount); int i; for (i = 0; i < rangeCount && LE_SUCCESS(success); i += 1) { if (SWAPW(classRangeRecordArrayRef(i,success).rangeValue) == glyphClass) { return TRUE; } } return FALSE; } U_NAMESPACE_END