| /* |
| * |
| * (C) Copyright IBM Corp. and others 1998-2013 - All Rights Reserved |
| * |
| */ |
| |
| #include "LETypes.h" |
| #include "LayoutEngine.h" |
| #include "GXLayoutEngine2.h" |
| #include "LEGlyphStorage.h" |
| #include "MorphTables.h" |
| |
| U_NAMESPACE_BEGIN |
| |
| UOBJECT_DEFINE_RTTI_IMPLEMENTATION(GXLayoutEngine2) |
| |
| GXLayoutEngine2::GXLayoutEngine2(const LEFontInstance *fontInstance, le_int32 scriptCode, le_int32 languageCode, const MorphTableHeader2 *morphTable, le_int32 typoFlags, LEErrorCode &success) |
| : LayoutEngine(fontInstance, scriptCode, languageCode, typoFlags, success), fMorphTable(morphTable) |
| { |
| // nothing else to do? |
| } |
| |
| GXLayoutEngine2::~GXLayoutEngine2() |
| { |
| reset(); |
| } |
| |
| // apply 'morx' table |
| le_int32 GXLayoutEngine2::computeGlyphs(const LEUnicode chars[], le_int32 offset, le_int32 count, le_int32 max, le_bool rightToLeft, LEGlyphStorage &glyphStorage, LEErrorCode &success) |
| { |
| if (LE_FAILURE(success)) { |
| return 0; |
| } |
| |
| if (chars == NULL || offset < 0 || count < 0 || max < 0 || offset >= max || offset + count > max) { |
| success = LE_ILLEGAL_ARGUMENT_ERROR; |
| return 0; |
| } |
| |
| mapCharsToGlyphs(chars, offset, count, rightToLeft, rightToLeft, glyphStorage, success); |
| |
| if (LE_FAILURE(success)) { |
| return 0; |
| } |
| |
| fMorphTable->process(glyphStorage, fTypoFlags); |
| return count; |
| } |
| |
| // apply positional tables |
| void GXLayoutEngine2::adjustGlyphPositions(const LEUnicode chars[], le_int32 offset, le_int32 count, le_bool /*reverse*/, |
| LEGlyphStorage &/*glyphStorage*/, LEErrorCode &success) |
| { |
| if (LE_FAILURE(success)) { |
| return; |
| } |
| |
| if (chars == NULL || offset < 0 || count < 0) { |
| success = LE_ILLEGAL_ARGUMENT_ERROR; |
| return; |
| } |
| |
| // FIXME: no positional processing yet... |
| } |
| |
| U_NAMESPACE_END |