0N/A/*
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A *
0N/A */
0N/A
0N/A/*
0N/A *
0N/A * (C) Copyright IBM Corp. 1998-2005 - All Rights Reserved
0N/A *
0N/A */
0N/A
0N/A#include "LETypes.h"
0N/A#include "LEFontInstance.h"
0N/A#include "OpenTypeTables.h"
0N/A#include "AnchorTables.h"
0N/A#include "MarkArrays.h"
0N/A#include "GlyphPositioningTables.h"
0N/A#include "AttachmentPosnSubtables.h"
0N/A#include "MarkToMarkPosnSubtables.h"
0N/A#include "GlyphIterator.h"
0N/A#include "LESwaps.h"
0N/A
1693N/AU_NAMESPACE_BEGIN
1693N/A
0N/ALEGlyphID MarkToMarkPositioningSubtable::findMark2Glyph(GlyphIterator *glyphIterator) const
0N/A{
0N/A if (glyphIterator->findMark2Glyph()) {
0N/A return glyphIterator->getCurrGlyphID();
0N/A }
0N/A
0N/A return 0xFFFF;
0N/A}
0N/A
5980N/Ale_int32 MarkToMarkPositioningSubtable::process(const LETableReference &base, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode &success) const
0N/A{
0N/A LEGlyphID markGlyph = glyphIterator->getCurrGlyphID();
5980N/A le_int32 markCoverage = getGlyphCoverage(base, (LEGlyphID) markGlyph, success);
0N/A
6371N/A if (LE_FAILURE(success)) {
6371N/A return 0;
6371N/A }
6371N/A
0N/A if (markCoverage < 0) {
0N/A // markGlyph isn't a covered mark glyph
0N/A return 0;
0N/A }
0N/A
0N/A LEPoint markAnchor;
0N/A const MarkArray *markArray = (const MarkArray *) ((char *) this + SWAPW(markArrayOffset));
0N/A le_int32 markClass = markArray->getMarkClass(markGlyph, markCoverage, fontInstance, markAnchor);
0N/A le_uint16 mcCount = SWAPW(classCount);
0N/A
0N/A if (markClass < 0 || markClass >= mcCount) {
0N/A // markGlyph isn't in the mark array or its
0N/A // mark class is too big. The table is mal-formed!
0N/A return 0;
0N/A }
0N/A
0N/A GlyphIterator mark2Iterator(*glyphIterator);
0N/A LEGlyphID mark2Glyph = findMark2Glyph(&mark2Iterator);
5980N/A le_int32 mark2Coverage = getBaseCoverage(base, (LEGlyphID) mark2Glyph, success);
0N/A const Mark2Array *mark2Array = (const Mark2Array *) ((char *) this + SWAPW(baseArrayOffset));
0N/A le_uint16 mark2Count = SWAPW(mark2Array->mark2RecordCount);
0N/A
0N/A if (mark2Coverage < 0 || mark2Coverage >= mark2Count) {
0N/A // The mark2 glyph isn't covered, or the coverage
0N/A // index is too big. The latter means that the
0N/A // table is mal-formed...
0N/A return 0;
0N/A }
0N/A
0N/A const Mark2Record *mark2Record = &mark2Array->mark2RecordArray[mark2Coverage * mcCount];
0N/A Offset anchorTableOffset = SWAPW(mark2Record->mark2AnchorTableOffsetArray[markClass]);
0N/A const AnchorTable *anchorTable = (const AnchorTable *) ((char *) mark2Array + anchorTableOffset);
0N/A LEPoint mark2Anchor, markAdvance, pixels;
0N/A
1693N/A if (anchorTableOffset == 0) {
0N/A // this seems to mean that the marks don't attach...
0N/A return 0;
0N/A }
0N/A
0N/A anchorTable->getAnchor(mark2Glyph, fontInstance, mark2Anchor);
0N/A
0N/A fontInstance->getGlyphAdvance(markGlyph, pixels);
0N/A fontInstance->pixelsToUnits(pixels, markAdvance);
0N/A
0N/A float anchorDiffX = mark2Anchor.fX - markAnchor.fX;
0N/A float anchorDiffY = mark2Anchor.fY - markAnchor.fY;
0N/A
0N/A glyphIterator->setCurrGlyphBaseOffset(mark2Iterator.getCurrStreamPosition());
0N/A
0N/A if (glyphIterator->isRightToLeft()) {
0N/A glyphIterator->setCurrGlyphPositionAdjustment(anchorDiffX, anchorDiffY, -markAdvance.fX, -markAdvance.fY);
0N/A } else {
0N/A LEPoint mark2Advance;
0N/A
0N/A fontInstance->getGlyphAdvance(mark2Glyph, pixels);
0N/A fontInstance->pixelsToUnits(pixels, mark2Advance);
0N/A
1693N/A glyphIterator->setCurrGlyphPositionAdjustment(anchorDiffX - mark2Advance.fX, anchorDiffY - mark2Advance.fY, -markAdvance.fX, -markAdvance.fY);
0N/A }
0N/A
0N/A return 1;
0N/A}
1693N/A
1693N/AU_NAMESPACE_END