| /* |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| |
| /* |
| * |
| * (C) Copyright IBM Corp. 1998-2005 - All Rights Reserved |
| * |
| */ |
| |
| #include "LETypes.h" |
| #include "LayoutEngine.h" |
| #include "GXLayoutEngine.h" |
| #include "LEGlyphStorage.h" |
| |
| #include "MorphTables.h" |
| |
| U_NAMESPACE_BEGIN |
| |
| UOBJECT_DEFINE_RTTI_IMPLEMENTATION(GXLayoutEngine) |
| |
| GXLayoutEngine::GXLayoutEngine(const LEFontInstance *fontInstance, le_int32 scriptCode, le_int32 languageCode, const LEReferenceTo<MorphTableHeader> &morphTable, LEErrorCode &success) |
| : LayoutEngine(fontInstance, scriptCode, languageCode, 0, success), fMorphTable(morphTable) |
| { |
| fMorphTable.orphan(); |
| // nothing else to do? |
| } |
| |
| GXLayoutEngine::~GXLayoutEngine() |
| { |
| reset(); |
| } |
| |
| // apply 'mort' table |
| le_int32 GXLayoutEngine::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, FALSE, rightToLeft, glyphStorage, success); |
| |
| if (LE_FAILURE(success)) { |
| return 0; |
| } |
| |
| fMorphTable->process(fMorphTable, glyphStorage, success); |
| |
| return glyphStorage.getGlyphCount(); |
| } |
| |
| // apply positional tables |
| void GXLayoutEngine::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 |