/*

 *

 * (C) Copyright IBM Corp. 1998-2004 - 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(LEGlyphID glyphID) const

{

    switch(SWAPW(classFormat)) {

    case 0:

        return 0;

    case 1:

    {

        const ClassDefFormat1Table *f1Table = (const ClassDefFormat1Table *) this;

        return f1Table->getGlyphClass(glyphID);

    }

    case 2:

    {

        const ClassDefFormat2Table *f2Table = (const ClassDefFormat2Table *) this;

        return f2Table->getGlyphClass(glyphID);

    }

    default:

        return 0;

    }

}

le_bool ClassDefinitionTable::hasGlyphClass(le_int32 glyphClass) const

{

    switch(SWAPW(classFormat)) {

    case 0:

        return 0;

    case 1:

    {

        const ClassDefFormat1Table *f1Table = (const ClassDefFormat1Table *) this;

        return f1Table->hasGlyphClass(glyphClass);

    }

    case 2:

    {

        const ClassDefFormat2Table *f2Table = (const ClassDefFormat2Table *) this;

        return f2Table->hasGlyphClass(glyphClass);

    }

    default:

        return 0;

    }

}

le_int32 ClassDefFormat1Table::getGlyphClass(LEGlyphID glyphID) const

{

    TTGlyphID ttGlyphID  = (TTGlyphID) LE_GET_GLYPH(glyphID);

    TTGlyphID firstGlyph = SWAPW(startGlyph);

    TTGlyphID lastGlyph  = firstGlyph + SWAPW(glyphCount);

    if (ttGlyphID > firstGlyph && ttGlyphID < lastGlyph) {

        return SWAPW(classValueArray[ttGlyphID - firstGlyph]);

    }

    return 0;

}

le_bool ClassDefFormat1Table::hasGlyphClass(le_int32 glyphClass) const

{

    le_uint16 count  = SWAPW(glyphCount);

    int i;

    for (i = 0; i < count; i += 1) {

        if (SWAPW(classValueArray[i]) == glyphClass) {

            return TRUE;

        }

    }

    return FALSE;

}

le_int32 ClassDefFormat2Table::getGlyphClass(LEGlyphID glyphID) const

{

    TTGlyphID ttGlyph    = (TTGlyphID) LE_GET_GLYPH(glyphID);

    le_uint16 rangeCount = SWAPW(classRangeCount);

    le_int32  rangeIndex =

        OpenTypeUtilities::getGlyphRangeIndex(ttGlyph, classRangeRecordArray, rangeCount);

    if (rangeIndex < 0) {

        return 0;

    }

    return SWAPW(classRangeRecordArray[rangeIndex].rangeValue);

}

le_bool ClassDefFormat2Table::hasGlyphClass(le_int32 glyphClass) const

{

    le_uint16 rangeCount = SWAPW(classRangeCount);

    int i;

    for (i = 0; i < rangeCount; i += 1) {

        if (SWAPW(classRangeRecordArray[i].rangeValue) == glyphClass) {

            return TRUE;

        }

    }

    return FALSE;

}

U_NAMESPACE_END