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+/*
+ * 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