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 "GlyphPositionAdjustments.h"
0N/A#include "LEGlyphStorage.h"
0N/A#include "LEFontInstance.h"
0N/A
1693N/AU_NAMESPACE_BEGIN
1693N/A
0N/A#define CHECK_ALLOCATE_ARRAY(array, type, size) \
0N/A if (array == NULL) { \
0N/A array = (type *) new type[size]; \
0N/A }
0N/A
0N/AGlyphPositionAdjustments::GlyphPositionAdjustments(le_int32 glyphCount)
0N/A : fGlyphCount(glyphCount), fEntryExitPoints(NULL), fAdjustments(NULL)
0N/A{
0N/A fAdjustments = (Adjustment *) new Adjustment[glyphCount];
0N/A}
0N/A
0N/AGlyphPositionAdjustments::~GlyphPositionAdjustments()
0N/A{
0N/A delete[] fEntryExitPoints;
0N/A delete[] fAdjustments;
0N/A}
0N/A
0N/Aconst LEPoint *GlyphPositionAdjustments::getEntryPoint(le_int32 index, LEPoint &entryPoint) const
0N/A{
0N/A if (fEntryExitPoints == NULL) {
0N/A return NULL;
0N/A }
0N/A
0N/A return fEntryExitPoints[index].getEntryPoint(entryPoint);
0N/A}
0N/A
0N/Aconst LEPoint *GlyphPositionAdjustments::getExitPoint(le_int32 index, LEPoint &exitPoint)const
0N/A{
0N/A if (fEntryExitPoints == NULL) {
0N/A return NULL;
0N/A }
0N/A
0N/A return fEntryExitPoints[index].getExitPoint(exitPoint);
0N/A}
0N/A
3171N/Avoid GlyphPositionAdjustments::clearEntryPoint(le_int32 index)
3171N/A{
3171N/A CHECK_ALLOCATE_ARRAY(fEntryExitPoints, EntryExitPoint, fGlyphCount);
3171N/A
3171N/A fEntryExitPoints[index].clearEntryPoint();
3171N/A}
3171N/A
3171N/Avoid GlyphPositionAdjustments::clearExitPoint(le_int32 index)
3171N/A{
3171N/A CHECK_ALLOCATE_ARRAY(fEntryExitPoints, EntryExitPoint, fGlyphCount);
3171N/A
3171N/A fEntryExitPoints[index].clearExitPoint();
3171N/A}
3171N/A
0N/Avoid GlyphPositionAdjustments::setEntryPoint(le_int32 index, LEPoint &newEntryPoint, le_bool baselineIsLogicalEnd)
0N/A{
0N/A CHECK_ALLOCATE_ARRAY(fEntryExitPoints, EntryExitPoint, fGlyphCount);
0N/A
0N/A fEntryExitPoints[index].setEntryPoint(newEntryPoint, baselineIsLogicalEnd);
0N/A}
0N/A
0N/Avoid GlyphPositionAdjustments::setExitPoint(le_int32 index, LEPoint &newExitPoint, le_bool baselineIsLogicalEnd)
0N/A{
0N/A CHECK_ALLOCATE_ARRAY(fEntryExitPoints, EntryExitPoint, fGlyphCount);
0N/A
0N/A fEntryExitPoints[index].setExitPoint(newExitPoint, baselineIsLogicalEnd);
0N/A}
0N/A
0N/Avoid GlyphPositionAdjustments::setCursiveGlyph(le_int32 index, le_bool baselineIsLogicalEnd)
0N/A{
0N/A CHECK_ALLOCATE_ARRAY(fEntryExitPoints, EntryExitPoint, fGlyphCount);
0N/A
0N/A fEntryExitPoints[index].setCursiveGlyph(baselineIsLogicalEnd);
0N/A}
0N/A
0N/Avoid GlyphPositionAdjustments::applyCursiveAdjustments(LEGlyphStorage &glyphStorage, le_bool rightToLeft, const LEFontInstance *fontInstance)
0N/A{
0N/A if (! hasCursiveGlyphs()) {
0N/A return;
0N/A }
0N/A
0N/A le_int32 start = 0, end = fGlyphCount, dir = 1;
0N/A le_int32 firstExitPoint = -1, lastExitPoint = -1;
0N/A LEPoint entryAnchor, exitAnchor, pixels;
0N/A LEGlyphID lastExitGlyphID = 0;
0N/A float baselineAdjustment = 0;
0N/A
0N/A // This removes a possible warning about
0N/A // using exitAnchor before it's been initialized.
0N/A exitAnchor.fX = exitAnchor.fY = 0;
0N/A
0N/A if (rightToLeft) {
0N/A start = fGlyphCount - 1;
0N/A end = -1;
0N/A dir = -1;
0N/A }
0N/A
0N/A for (le_int32 i = start; i != end; i += dir) {
0N/A LEGlyphID glyphID = glyphStorage[i];
0N/A
0N/A if (isCursiveGlyph(i)) {
0N/A if (lastExitPoint >= 0 && getEntryPoint(i, entryAnchor) != NULL) {
0N/A float anchorDiffX = exitAnchor.fX - entryAnchor.fX;
0N/A float anchorDiffY = exitAnchor.fY - entryAnchor.fY;
0N/A
0N/A baselineAdjustment += anchorDiffY;
0N/A adjustYPlacement(i, baselineAdjustment);
0N/A
0N/A if (rightToLeft) {
0N/A LEPoint secondAdvance;
0N/A
0N/A fontInstance->getGlyphAdvance(glyphID, pixels);
0N/A fontInstance->pixelsToUnits(pixels, secondAdvance);
0N/A
0N/A adjustXAdvance(i, -(anchorDiffX + secondAdvance.fX));
0N/A } else {
0N/A LEPoint firstAdvance;
0N/A
0N/A fontInstance->getGlyphAdvance(lastExitGlyphID, pixels);
0N/A fontInstance->pixelsToUnits(pixels, firstAdvance);
0N/A
0N/A adjustXAdvance(lastExitPoint, anchorDiffX - firstAdvance.fX);
0N/A }
0N/A }
0N/A
0N/A lastExitPoint = i;
0N/A
0N/A if (getExitPoint(i, exitAnchor) != NULL) {
0N/A if (firstExitPoint < 0) {
0N/A firstExitPoint = i;
0N/A }
0N/A
0N/A lastExitGlyphID = glyphID;
0N/A } else {
0N/A if (baselineIsLogicalEnd(i) && firstExitPoint >= 0 && lastExitPoint >= 0) {
3171N/A le_int32 limit = lastExitPoint /*+ dir*/;
3171N/A LEPoint dummyAnchor;
3171N/A
3171N/A if (getEntryPoint(i, dummyAnchor) != NULL) {
3171N/A limit += dir;
3171N/A }
0N/A
0N/A for (le_int32 j = firstExitPoint; j != limit; j += dir) {
0N/A if (isCursiveGlyph(j)) {
0N/A adjustYPlacement(j, -baselineAdjustment);
0N/A }
0N/A }
0N/A }
0N/A
0N/A firstExitPoint = lastExitPoint = -1;
0N/A baselineAdjustment = 0;
0N/A }
0N/A }
0N/A }
0N/A}
0N/A
0N/ALEPoint *GlyphPositionAdjustments::EntryExitPoint::getEntryPoint(LEPoint &entryPoint) const
0N/A{
0N/A if (fFlags & EEF_HAS_ENTRY_POINT) {
0N/A entryPoint = fEntryPoint;
0N/A return &entryPoint;
0N/A }
0N/A
0N/A return NULL;
0N/A}
0N/A
0N/ALEPoint *GlyphPositionAdjustments::EntryExitPoint::getExitPoint(LEPoint &exitPoint) const
0N/A{
0N/A if (fFlags & EEF_HAS_EXIT_POINT) {
0N/A exitPoint = fExitPoint;
0N/A return &exitPoint;
0N/A }
0N/A
0N/A return NULL;
0N/A}
1693N/A
1693N/AU_NAMESPACE_END