| /* |
| * 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 |
| * |
| */ |
| |
| #ifndef __GLYPHITERATOR_H |
| #define __GLYPHITERATOR_H |
| |
| /** |
| * \file |
| * \internal |
| */ |
| |
| #include "LETypes.h" |
| #include "OpenTypeTables.h" |
| #include "GlyphDefinitionTables.h" |
| |
| U_NAMESPACE_BEGIN |
| |
| class LEGlyphStorage; |
| class GlyphPositionAdjustments; |
| |
| class GlyphIterator : public UMemory { |
| public: |
| GlyphIterator(LEGlyphStorage &theGlyphStorage, GlyphPositionAdjustments *theGlyphPositionAdjustments, le_bool rightToLeft, le_uint16 theLookupFlags, |
| FeatureMask theFeatureMask, const LEReferenceTo<GlyphDefinitionTableHeader> &theGlyphDefinitionTableHeader); |
| |
| GlyphIterator(GlyphIterator &that); |
| |
| GlyphIterator(GlyphIterator &that, FeatureMask newFeatureMask); |
| |
| GlyphIterator(GlyphIterator &that, le_uint16 newLookupFlags); |
| |
| virtual ~GlyphIterator(); |
| |
| void reset(le_uint16 newLookupFlags, LETag newFeatureTag); |
| |
| le_bool next(le_uint32 delta = 1); |
| le_bool prev(le_uint32 delta = 1); |
| le_bool findFeatureTag(); |
| |
| le_bool isRightToLeft() const; |
| le_bool ignoresMarks() const; |
| |
| le_bool baselineIsLogicalEnd() const; |
| |
| LEGlyphID getCurrGlyphID() const; |
| le_int32 getCurrStreamPosition() const; |
| |
| le_int32 getMarkComponent(le_int32 markPosition) const; |
| le_bool findMark2Glyph(); |
| |
| void getCursiveEntryPoint(LEPoint &entryPoint) const; |
| void getCursiveExitPoint(LEPoint &exitPoint) const; |
| |
| void setCurrGlyphID(TTGlyphID glyphID); |
| void setCurrStreamPosition(le_int32 position); |
| void setCurrGlyphBaseOffset(le_int32 baseOffset); |
| void adjustCurrGlyphPositionAdjustment(float xPlacementAdjust, float yPlacementAdjust, |
| float xAdvanceAdjust, float yAdvanceAdjust); |
| |
| void setCurrGlyphPositionAdjustment(float xPlacementAdjust, float yPlacementAdjust, |
| float xAdvanceAdjust, float yAdvanceAdjust); |
| |
| void clearCursiveEntryPoint(); |
| void clearCursiveExitPoint(); |
| void setCursiveEntryPoint(LEPoint &entryPoint); |
| void setCursiveExitPoint(LEPoint &exitPoint); |
| void setCursiveGlyph(); |
| |
| LEGlyphID *insertGlyphs(le_int32 count, LEErrorCode& success); |
| le_int32 applyInsertions(); |
| |
| private: |
| le_bool filterGlyph(le_uint32 index); |
| le_bool hasFeatureTag(le_bool matchGroup) const; |
| le_bool nextInternal(le_uint32 delta = 1); |
| le_bool prevInternal(le_uint32 delta = 1); |
| |
| le_int32 direction; |
| le_int32 position; |
| le_int32 nextLimit; |
| le_int32 prevLimit; |
| |
| LEGlyphStorage &glyphStorage; |
| GlyphPositionAdjustments *glyphPositionAdjustments; |
| |
| le_int32 srcIndex; |
| le_int32 destIndex; |
| le_uint16 lookupFlags; |
| FeatureMask featureMask; |
| le_int32 glyphGroup; |
| |
| LEReferenceTo<GlyphClassDefinitionTable> glyphClassDefinitionTable; |
| LEReferenceTo<MarkAttachClassDefinitionTable> markAttachClassDefinitionTable; |
| |
| GlyphIterator &operator=(const GlyphIterator &other); // forbid copying of this class |
| |
| struct { |
| LEGlyphID id; |
| le_bool result; |
| } filterCache; |
| le_bool filterCacheValid; |
| |
| void filterResetCache(void); |
| }; |
| |
| U_NAMESPACE_END |
| #endif |