122 lines
2.6 KiB
C++
122 lines
2.6 KiB
C++
/*
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* @(#)ClassDefinitionTables.cpp 1.5 00/03/15
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*
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* (C) Copyright IBM Corp. 1998-2003 - All Rights Reserved
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*
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*/
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#include "LETypes.h"
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#include "OpenTypeTables.h"
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#include "OpenTypeUtilities.h"
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#include "ClassDefinitionTables.h"
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#include "LESwaps.h"
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U_NAMESPACE_BEGIN
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le_int32 ClassDefinitionTable::getGlyphClass(LEGlyphID glyphID) const
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{
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switch(SWAPW(classFormat)) {
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case 0:
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return 0;
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case 1:
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{
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const ClassDefFormat1Table *f1Table = (const ClassDefFormat1Table *) this;
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return f1Table->getGlyphClass(glyphID);
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}
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case 2:
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{
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const ClassDefFormat2Table *f2Table = (const ClassDefFormat2Table *) this;
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return f2Table->getGlyphClass(glyphID);
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}
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default:
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return 0;
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}
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}
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le_bool ClassDefinitionTable::hasGlyphClass(le_int32 glyphClass) const
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{
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switch(SWAPW(classFormat)) {
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case 0:
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return 0;
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case 1:
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{
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const ClassDefFormat1Table *f1Table = (const ClassDefFormat1Table *) this;
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return f1Table->hasGlyphClass(glyphClass);
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}
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case 2:
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{
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const ClassDefFormat2Table *f2Table = (const ClassDefFormat2Table *) this;
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return f2Table->hasGlyphClass(glyphClass);
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}
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default:
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return 0;
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}
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}
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le_int32 ClassDefFormat1Table::getGlyphClass(LEGlyphID glyphID) const
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{
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TTGlyphID ttGlyphID = (TTGlyphID) LE_GET_GLYPH(glyphID);
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TTGlyphID firstGlyph = SWAPW(startGlyph);
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TTGlyphID lastGlyph = firstGlyph + SWAPW(glyphCount);
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if (ttGlyphID > firstGlyph && ttGlyphID < lastGlyph) {
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return SWAPW(classValueArray[ttGlyphID - firstGlyph]);
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}
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return 0;
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}
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le_bool ClassDefFormat1Table::hasGlyphClass(le_int32 glyphClass) const
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{
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le_uint16 count = SWAPW(glyphCount);
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int i;
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for (i = 0; i < count; i += 1) {
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if (SWAPW(classValueArray[i]) == glyphClass) {
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return TRUE;
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}
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}
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return FALSE;
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}
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le_int32 ClassDefFormat2Table::getGlyphClass(LEGlyphID glyphID) const
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{
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TTGlyphID ttGlyph = (TTGlyphID) LE_GET_GLYPH(glyphID);
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le_uint16 rangeCount = SWAPW(classRangeCount);
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le_int32 rangeIndex =
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OpenTypeUtilities::getGlyphRangeIndex(ttGlyph, classRangeRecordArray, rangeCount);
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if (rangeIndex < 0) {
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return 0;
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}
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return SWAPW(classRangeRecordArray[rangeIndex].rangeValue);
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}
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le_bool ClassDefFormat2Table::hasGlyphClass(le_int32 glyphClass) const
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{
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le_uint16 rangeCount = SWAPW(classRangeCount);
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int i;
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for (i = 0; i < rangeCount; i += 1) {
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if (SWAPW(classRangeRecordArray[i].rangeValue) == glyphClass) {
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return TRUE;
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}
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}
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return FALSE;
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}
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U_NAMESPACE_END
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