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author | Steve Block <steveblock@google.com> | 2011-05-06 11:45:16 +0100 |
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committer | Steve Block <steveblock@google.com> | 2011-05-12 13:44:10 +0100 |
commit | cad810f21b803229eb11403f9209855525a25d57 (patch) | |
tree | 29a6fd0279be608e0fe9ffe9841f722f0f4e4269 /Source/WebCore/platform/graphics/Path.h | |
parent | 121b0cf4517156d0ac5111caf9830c51b69bae8f (diff) | |
download | external_webkit-cad810f21b803229eb11403f9209855525a25d57.zip external_webkit-cad810f21b803229eb11403f9209855525a25d57.tar.gz external_webkit-cad810f21b803229eb11403f9209855525a25d57.tar.bz2 |
Merge WebKit at r75315: Initial merge by git.
Change-Id: I570314b346ce101c935ed22a626b48c2af266b84
Diffstat (limited to 'Source/WebCore/platform/graphics/Path.h')
-rw-r--r-- | Source/WebCore/platform/graphics/Path.h | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/Source/WebCore/platform/graphics/Path.h b/Source/WebCore/platform/graphics/Path.h new file mode 100644 index 0000000..423a792 --- /dev/null +++ b/Source/WebCore/platform/graphics/Path.h @@ -0,0 +1,153 @@ +/* + * Copyright (C) 2003, 2006, 2009 Apple Inc. All rights reserved. + * 2006 Rob Buis <buis@kde.org> + * Copyright (C) 2007-2008 Torch Mobile, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef Path_h +#define Path_h + +#include <wtf/FastAllocBase.h> +#include <wtf/Forward.h> + +#if PLATFORM(CG) +typedef struct CGPath PlatformPath; +#elif PLATFORM(OPENVG) +namespace WebCore { +class PlatformPathOpenVG; +} +typedef WebCore::PlatformPathOpenVG PlatformPath; +#elif PLATFORM(QT) +#include <qpainterpath.h> +typedef QPainterPath PlatformPath; +#elif PLATFORM(WX) && USE(WXGC) +class wxGraphicsPath; +typedef wxGraphicsPath PlatformPath; +#elif PLATFORM(CAIRO) +namespace WebCore { +class CairoPath; +} +typedef WebCore::CairoPath PlatformPath; +#elif PLATFORM(SKIA) +class SkPath; +typedef SkPath PlatformPath; +#elif PLATFORM(HAIKU) +class BRegion; +typedef BRegion PlatformPath; +#elif OS(WINCE) +namespace WebCore { + class PlatformPath; +} +typedef WebCore::PlatformPath PlatformPath; +#else +typedef void PlatformPath; +#endif + +#if PLATFORM(QT) +/* QPainterPath is valued based */ +typedef PlatformPath PlatformPathPtr; +#else +typedef PlatformPath* PlatformPathPtr; +#endif + +namespace WebCore { + + class AffineTransform; + class FloatPoint; + class FloatRect; + class FloatSize; + class GraphicsContext; + class StrokeStyleApplier; + + enum WindRule { + RULE_NONZERO = 0, + RULE_EVENODD = 1 + }; + + enum PathElementType { + PathElementMoveToPoint, + PathElementAddLineToPoint, + PathElementAddQuadCurveToPoint, + PathElementAddCurveToPoint, + PathElementCloseSubpath + }; + + struct PathElement { + PathElementType type; + FloatPoint* points; + }; + + typedef void (*PathApplierFunction)(void* info, const PathElement*); + + class Path : public FastAllocBase { + public: + Path(); + ~Path(); + + Path(const Path&); + Path& operator=(const Path&); + + bool contains(const FloatPoint&, WindRule rule = RULE_NONZERO) const; + bool strokeContains(StrokeStyleApplier*, const FloatPoint&) const; + FloatRect boundingRect() const; + FloatRect strokeBoundingRect(StrokeStyleApplier* = 0); + + float length(); + FloatPoint pointAtLength(float length, bool& ok); + float normalAngleAtLength(float length, bool& ok); + + void clear(); + bool isEmpty() const; + // Gets the current point of the current path, which is conceptually the final point reached by the path so far. + // Note the Path can be empty (isEmpty() == true) and still have a current point. + bool hasCurrentPoint() const; + FloatPoint currentPoint() const; + + void moveTo(const FloatPoint&); + void addLineTo(const FloatPoint&); + void addQuadCurveTo(const FloatPoint& controlPoint, const FloatPoint& endPoint); + void addBezierCurveTo(const FloatPoint& controlPoint1, const FloatPoint& controlPoint2, const FloatPoint& endPoint); + void addArcTo(const FloatPoint&, const FloatPoint&, float radius); + void closeSubpath(); + + void addArc(const FloatPoint&, float radius, float startAngle, float endAngle, bool anticlockwise); + void addRect(const FloatRect&); + void addEllipse(const FloatRect&); + void addRoundedRect(const FloatRect&, const FloatSize& roundingRadii); + void addRoundedRect(const FloatRect&, const FloatSize& topLeftRadius, const FloatSize& topRightRadius, const FloatSize& bottomLeftRadius, const FloatSize& bottomRightRadius); + + void translate(const FloatSize&); + + PlatformPathPtr platformPath() const { return m_path; } + + void apply(void* info, PathApplierFunction) const; + void transform(const AffineTransform&); + + private: + PlatformPathPtr m_path; + }; + +} + +#endif |