sl@0: /*
sl@0:  *
sl@0:  * (C) Copyright IBM Corp. 1998-2004 - All Rights Reserved
sl@0:  *
sl@0:  */
sl@0: 
sl@0: #include "LETypes.h"
sl@0: #include "OpenTypeTables.h"
sl@0: #include "OpenTypeUtilities.h"
sl@0: #include "ClassDefinitionTables.h"
sl@0: #include "LESwaps.h"
sl@0: 
sl@0: U_NAMESPACE_BEGIN
sl@0: 
sl@0: le_int32 ClassDefinitionTable::getGlyphClass(LEGlyphID glyphID) const
sl@0: {
sl@0:     switch(SWAPW(classFormat)) {
sl@0:     case 0:
sl@0:         return 0;
sl@0: 
sl@0:     case 1:
sl@0:     {
sl@0:         const ClassDefFormat1Table *f1Table = (const ClassDefFormat1Table *) this;
sl@0: 
sl@0:         return f1Table->getGlyphClass(glyphID);
sl@0:     }
sl@0: 
sl@0:     case 2:
sl@0:     {
sl@0:         const ClassDefFormat2Table *f2Table = (const ClassDefFormat2Table *) this;
sl@0: 
sl@0:         return f2Table->getGlyphClass(glyphID);
sl@0:     }
sl@0: 
sl@0:     default:
sl@0:         return 0;
sl@0:     }
sl@0: }
sl@0: 
sl@0: le_bool ClassDefinitionTable::hasGlyphClass(le_int32 glyphClass) const
sl@0: {
sl@0:     switch(SWAPW(classFormat)) {
sl@0:     case 0:
sl@0:         return 0;
sl@0: 
sl@0:     case 1:
sl@0:     {
sl@0:         const ClassDefFormat1Table *f1Table = (const ClassDefFormat1Table *) this;
sl@0: 
sl@0:         return f1Table->hasGlyphClass(glyphClass);
sl@0:     }
sl@0: 
sl@0:     case 2:
sl@0:     {
sl@0:         const ClassDefFormat2Table *f2Table = (const ClassDefFormat2Table *) this;
sl@0: 
sl@0:         return f2Table->hasGlyphClass(glyphClass);
sl@0:     }
sl@0: 
sl@0:     default:
sl@0:         return 0;
sl@0:     }
sl@0: }
sl@0: 
sl@0: le_int32 ClassDefFormat1Table::getGlyphClass(LEGlyphID glyphID) const
sl@0: {
sl@0:     TTGlyphID ttGlyphID  = (TTGlyphID) LE_GET_GLYPH(glyphID);
sl@0:     TTGlyphID firstGlyph = SWAPW(startGlyph);
sl@0:     TTGlyphID lastGlyph  = firstGlyph + SWAPW(glyphCount);
sl@0: 
sl@0:     if (ttGlyphID > firstGlyph && ttGlyphID < lastGlyph) {
sl@0:         return SWAPW(classValueArray[ttGlyphID - firstGlyph]);
sl@0:     }
sl@0: 
sl@0:     return 0;
sl@0: }
sl@0: 
sl@0: le_bool ClassDefFormat1Table::hasGlyphClass(le_int32 glyphClass) const
sl@0: {
sl@0:     le_uint16 count  = SWAPW(glyphCount);
sl@0:     int i;
sl@0: 
sl@0:     for (i = 0; i < count; i += 1) {
sl@0:         if (SWAPW(classValueArray[i]) == glyphClass) {
sl@0:             return TRUE;
sl@0:         }
sl@0:     }
sl@0: 
sl@0:     return FALSE;
sl@0: }
sl@0: 
sl@0: le_int32 ClassDefFormat2Table::getGlyphClass(LEGlyphID glyphID) const
sl@0: {
sl@0:     TTGlyphID ttGlyph    = (TTGlyphID) LE_GET_GLYPH(glyphID);
sl@0:     le_uint16 rangeCount = SWAPW(classRangeCount);
sl@0:     le_int32  rangeIndex =
sl@0:         OpenTypeUtilities::getGlyphRangeIndex(ttGlyph, classRangeRecordArray, rangeCount);
sl@0: 
sl@0:     if (rangeIndex < 0) {
sl@0:         return 0;
sl@0:     }
sl@0: 
sl@0:     return SWAPW(classRangeRecordArray[rangeIndex].rangeValue);
sl@0: }
sl@0: 
sl@0: le_bool ClassDefFormat2Table::hasGlyphClass(le_int32 glyphClass) const
sl@0: {
sl@0:     le_uint16 rangeCount = SWAPW(classRangeCount);
sl@0:     int i;
sl@0: 
sl@0:     for (i = 0; i < rangeCount; i += 1) {
sl@0:         if (SWAPW(classRangeRecordArray[i].rangeValue) == glyphClass) {
sl@0:             return TRUE;
sl@0:         }
sl@0:     }
sl@0: 
sl@0:     return FALSE;
sl@0: }
sl@0: 
sl@0: U_NAMESPACE_END