1/* 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * 4 * This code is free software; you can redistribute it and/or modify it 5 * under the terms of the GNU General Public License version 2 only, as 6 * published by the Free Software Foundation. Oracle designates this 7 * particular file as subject to the "Classpath" exception as provided 8 * by Oracle in the LICENSE file that accompanied this code. 9 * 10 * This code is distributed in the hope that it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13 * version 2 for more details (a copy is included in the LICENSE file that 14 * accompanied this code). 15 * 16 * You should have received a copy of the GNU General Public License version 17 * 2 along with this work; if not, write to the Free Software Foundation, 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19 * 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 21 * or visit www.oracle.com if you need additional information or have any 22 * questions. 23 * 24 */ 25 26/* 27 * 28 * (C) Copyright IBM Corp. and others 1998-2013 - All Rights Reserved 29 * 30 */ 31 32#include "LETypes.h" 33#include "LayoutEngine.h" 34#include "GXLayoutEngine2.h" 35#include "LEGlyphStorage.h" 36#include "MorphTables.h" 37 38U_NAMESPACE_BEGIN 39 40UOBJECT_DEFINE_RTTI_IMPLEMENTATION(GXLayoutEngine2) 41 42GXLayoutEngine2::GXLayoutEngine2(const LEFontInstance *fontInstance, le_int32 scriptCode, le_int32 languageCode, const LEReferenceTo<MorphTableHeader2> &morphTable, le_int32 typoFlags, LEErrorCode &success) 43 : LayoutEngine(fontInstance, scriptCode, languageCode, typoFlags, success), fMorphTable(morphTable) 44{ 45 // nothing else to do? 46} 47 48GXLayoutEngine2::~GXLayoutEngine2() 49{ 50 reset(); 51} 52 53// apply 'morx' table 54le_int32 GXLayoutEngine2::computeGlyphs(const LEUnicode chars[], le_int32 offset, le_int32 count, le_int32 max, le_bool rightToLeft, LEGlyphStorage &glyphStorage, LEErrorCode &success) 55{ 56 if (LE_FAILURE(success)) { 57 return 0; 58 } 59 60 if (chars == NULL || offset < 0 || count < 0 || max < 0 || offset >= max || offset + count > max) { 61 success = LE_ILLEGAL_ARGUMENT_ERROR; 62 return 0; 63 } 64 65 mapCharsToGlyphs(chars, offset, count, rightToLeft, rightToLeft, glyphStorage, success); 66 67 if (LE_FAILURE(success)) { 68 return 0; 69 } 70 71 fMorphTable->process(fMorphTable, glyphStorage, fTypoFlags, success); 72 return glyphStorage.getGlyphCount(); 73} 74 75// apply positional tables 76void GXLayoutEngine2::adjustGlyphPositions(const LEUnicode chars[], le_int32 offset, le_int32 count, le_bool /*reverse*/, 77 LEGlyphStorage &/*glyphStorage*/, LEErrorCode &success) 78{ 79 if (LE_FAILURE(success)) { 80 return; 81 } 82 83 if (chars == NULL || offset < 0 || count < 0) { 84 success = LE_ILLEGAL_ARGUMENT_ERROR; 85 return; 86 } 87 88 // FIXME: no positional processing yet... 89} 90 91U_NAMESPACE_END 92