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Diffstat (limited to 'WebCore/platform/graphics/AffineTransform.h')
-rw-r--r-- | WebCore/platform/graphics/AffineTransform.h | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/WebCore/platform/graphics/AffineTransform.h b/WebCore/platform/graphics/AffineTransform.h new file mode 100644 index 0000000..37c6033 --- /dev/null +++ b/WebCore/platform/graphics/AffineTransform.h @@ -0,0 +1,140 @@ +/* + * Copyright (C) 2005, 2006 Apple Computer, Inc. All rights reserved. + * + * 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 AffineTransform_h +#define AffineTransform_h + +#if PLATFORM(CG) +#include <CoreGraphics/CGAffineTransform.h> +typedef CGAffineTransform PlatformAffineTransform; +#elif PLATFORM(QT) +#include <QMatrix> +typedef QMatrix PlatformAffineTransform; +#elif PLATFORM(CAIRO) +#include <cairo.h> +typedef cairo_matrix_t PlatformAffineTransform; +#elif PLATFORM(SGL) +#include "SkMatrix.h" +typedef SkMatrix PlatformAffineTransform; +#elif PLATFORM(SKIA) +#include "SkMatrix.h" +typedef SkMatrix PlatformAffineTransform; +#elif PLATFORM(WX) && USE(WXGC) +#include <wx/defs.h> +#include <wx/graphics.h> +typedef wxGraphicsMatrix PlatformAffineTransform; +#endif + +namespace WebCore { + +class IntPoint; +class IntRect; +class FloatPoint; +class FloatRect; + +class AffineTransform { +public: + AffineTransform(); + AffineTransform(double a, double b, double c, double d, double e, double f); +#if !PLATFORM(WX) || USE(WXGC) + AffineTransform(const PlatformAffineTransform&); +#endif + + void setMatrix(double a, double b, double c, double d, double e, double f); + void map(double x, double y, double *x2, double *y2) const; + + // Rounds the mapped point to the nearest integer value. + IntPoint mapPoint(const IntPoint&) const; + + FloatPoint mapPoint(const FloatPoint&) const; + + // Rounds the resulting mapped rectangle out. This is helpful for bounding + // box computations but may not be what is wanted in other contexts. + IntRect mapRect(const IntRect&) const; + + FloatRect mapRect(const FloatRect&) const; + + bool isIdentity() const; + + double a() const; + void setA(double a); + + double b() const; + void setB(double b); + + double c() const; + void setC(double c); + + double d() const; + void setD(double d); + + double e() const; + void setE(double e); + + double f() const; + void setF(double f); + + void reset(); + + AffineTransform& multiply(const AffineTransform&); + AffineTransform& scale(double); + AffineTransform& scale(double sx, double sy); + AffineTransform& scaleNonUniform(double sx, double sy); + AffineTransform& rotate(double d); + AffineTransform& rotateFromVector(double x, double y); + AffineTransform& translate(double tx, double ty); + AffineTransform& shear(double sx, double sy); + AffineTransform& flipX(); + AffineTransform& flipY(); + AffineTransform& skew(double angleX, double angleY); + AffineTransform& skewX(double angle); + AffineTransform& skewY(double angle); + + double det() const; + bool isInvertible() const; + AffineTransform inverse() const; + + void blend(const AffineTransform& from, double progress); + +#if !PLATFORM(WX) || USE(WXGC) + operator PlatformAffineTransform() const; +#endif + + bool operator==(const AffineTransform&) const; + bool operator!=(const AffineTransform& other) const { return !(*this == other); } + AffineTransform& operator*=(const AffineTransform&); + AffineTransform operator*(const AffineTransform&); + +private: +#if !PLATFORM(WX) || USE(WXGC) + PlatformAffineTransform m_transform; +#endif +}; + +AffineTransform makeMapBetweenRects(const FloatRect& source, const FloatRect& dest); + +} // namespace WebCore + +#endif // AffineTransform_h |