174 lines
5.1 KiB
C++
174 lines
5.1 KiB
C++
/*
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* Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
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* Copyright (C) 2015 Apple Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "config.h"
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#include "SVGPathStringBuilder.h"
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#include <wtf/text/WTFString.h>
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namespace WebCore {
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SVGPathStringBuilder::SVGPathStringBuilder() = default;
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SVGPathStringBuilder::~SVGPathStringBuilder() = default;
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String SVGPathStringBuilder::result()
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{
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unsigned size = m_stringBuilder.length();
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if (!size)
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return String();
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// Remove trailing space.
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m_stringBuilder.shrink(size - 1);
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return m_stringBuilder.toString();
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}
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void SVGPathStringBuilder::incrementPathSegmentCount()
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{
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}
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bool SVGPathStringBuilder::continueConsuming()
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{
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return true;
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}
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static void appendFlag(StringBuilder& stringBuilder, bool flag)
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{
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stringBuilder.append(flag ? '1' : '0', ' ');
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}
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static void appendNumber(StringBuilder& stringBuilder, float number)
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{
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// FIXME: Shortest form would be better, but fixed precision is required for now to smooth over precision errors caused by converting float to double and back in CGPath on Cocoa platforms.
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stringBuilder.append(FormattedNumber::fixedPrecision(number), ' ');
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}
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static void appendPoint(StringBuilder& stringBuilder, const FloatPoint& point)
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{
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appendNumber(stringBuilder, point.x());
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appendNumber(stringBuilder, point.y());
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}
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void SVGPathStringBuilder::moveTo(const FloatPoint& targetPoint, bool, PathCoordinateMode mode)
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{
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if (mode == AbsoluteCoordinates)
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m_stringBuilder.append("M ");
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else
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m_stringBuilder.append("m ");
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appendPoint(m_stringBuilder, targetPoint);
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}
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void SVGPathStringBuilder::lineTo(const FloatPoint& targetPoint, PathCoordinateMode mode)
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{
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if (mode == AbsoluteCoordinates)
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m_stringBuilder.append("L ");
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else
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m_stringBuilder.append("l ");
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appendPoint(m_stringBuilder, targetPoint);
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}
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void SVGPathStringBuilder::lineToHorizontal(float x, PathCoordinateMode mode)
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{
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if (mode == AbsoluteCoordinates)
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m_stringBuilder.append("H ");
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else
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m_stringBuilder.append("h ");
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appendNumber(m_stringBuilder, x);
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}
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void SVGPathStringBuilder::lineToVertical(float y, PathCoordinateMode mode)
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{
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if (mode == AbsoluteCoordinates)
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m_stringBuilder.append("V ");
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else
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m_stringBuilder.append("v ");
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appendNumber(m_stringBuilder, y);
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}
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void SVGPathStringBuilder::curveToCubic(const FloatPoint& point1, const FloatPoint& point2, const FloatPoint& targetPoint, PathCoordinateMode mode)
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{
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if (mode == AbsoluteCoordinates)
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m_stringBuilder.append("C ");
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else
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m_stringBuilder.append("c ");
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appendPoint(m_stringBuilder, point1);
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appendPoint(m_stringBuilder, point2);
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appendPoint(m_stringBuilder, targetPoint);
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}
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void SVGPathStringBuilder::curveToCubicSmooth(const FloatPoint& point2, const FloatPoint& targetPoint, PathCoordinateMode mode)
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{
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if (mode == AbsoluteCoordinates)
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m_stringBuilder.append("S ");
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else
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m_stringBuilder.append("s ");
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appendPoint(m_stringBuilder, point2);
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appendPoint(m_stringBuilder, targetPoint);
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}
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void SVGPathStringBuilder::curveToQuadratic(const FloatPoint& point1, const FloatPoint& targetPoint, PathCoordinateMode mode)
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{
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if (mode == AbsoluteCoordinates)
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m_stringBuilder.append("Q ");
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else
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m_stringBuilder.append("q ");
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appendPoint(m_stringBuilder, point1);
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appendPoint(m_stringBuilder, targetPoint);
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}
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void SVGPathStringBuilder::curveToQuadraticSmooth(const FloatPoint& targetPoint, PathCoordinateMode mode)
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{
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if (mode == AbsoluteCoordinates)
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m_stringBuilder.append("T ");
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else
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m_stringBuilder.append("t ");
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appendPoint(m_stringBuilder, targetPoint);
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}
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void SVGPathStringBuilder::arcTo(float r1, float r2, float angle, bool largeArcFlag, bool sweepFlag, const FloatPoint& targetPoint, PathCoordinateMode mode)
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{
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if (mode == AbsoluteCoordinates)
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m_stringBuilder.append("A ");
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else
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m_stringBuilder.append("a ");
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appendNumber(m_stringBuilder, r1);
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appendNumber(m_stringBuilder, r2);
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appendNumber(m_stringBuilder, angle);
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appendFlag(m_stringBuilder, largeArcFlag);
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appendFlag(m_stringBuilder, sweepFlag);
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appendPoint(m_stringBuilder, targetPoint);
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}
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void SVGPathStringBuilder::closePath()
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{
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m_stringBuilder.append("Z ");
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}
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} // namespace WebCore
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