2 * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
3 * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB. If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
21 #ifndef SVGTransform_h
22 #define SVGTransform_h
24 #include "core/svg/properties/SVGProperty.h"
25 #include "platform/geometry/FloatPoint.h"
26 #include "platform/transforms/AffineTransform.h"
27 #include "wtf/text/WTFString.h"
32 class SVGTransformTearOff;
34 enum SVGTransformType {
35 SVG_TRANSFORM_UNKNOWN = 0,
36 SVG_TRANSFORM_MATRIX = 1,
37 SVG_TRANSFORM_TRANSLATE = 2,
38 SVG_TRANSFORM_SCALE = 3,
39 SVG_TRANSFORM_ROTATE = 4,
40 SVG_TRANSFORM_SKEWX = 5,
41 SVG_TRANSFORM_SKEWY = 6
44 class SVGTransform : public SVGPropertyBase {
46 typedef SVGTransformTearOff TearOffType;
48 enum ConstructionMode {
49 ConstructIdentityTransform,
50 ConstructZeroTransform
53 static PassRefPtr<SVGTransform> create()
55 return adoptRef(new SVGTransform());
58 static PassRefPtr<SVGTransform> create(SVGTransformType type, ConstructionMode mode = ConstructIdentityTransform)
60 return adoptRef(new SVGTransform(type, mode));
63 static PassRefPtr<SVGTransform> create(const AffineTransform& affineTransform)
65 return adoptRef(new SVGTransform(affineTransform));
68 virtual ~SVGTransform();
70 PassRefPtr<SVGTransform> clone() const;
71 virtual PassRefPtr<SVGPropertyBase> cloneForAnimation(const String&) const OVERRIDE;
73 SVGTransformType transformType() const { return m_transformType; }
75 const AffineTransform& matrix() const { return m_matrix; }
77 // |onMatrixChange| must be called after modifications via |mutableMatrix|.
78 AffineTransform* mutableMatrix() { return &m_matrix; }
79 void onMatrixChange();
81 float angle() const { return m_angle; }
82 FloatPoint rotationCenter() const { return m_center; }
84 void setMatrix(const AffineTransform&);
85 void setTranslate(float tx, float ty);
86 void setScale(float sx, float sy);
87 void setRotate(float angle, float cx, float cy);
88 void setSkewX(float angle);
89 void setSkewY(float angle);
91 // Internal use only (animation system)
92 FloatPoint translate() const;
93 FloatSize scale() const;
95 virtual String valueAsString() const OVERRIDE;
97 virtual void add(PassRefPtr<SVGPropertyBase>, SVGElement*) OVERRIDE;
98 virtual void calculateAnimatedValue(SVGAnimationElement*, float percentage, unsigned repeatCount, PassRefPtr<SVGPropertyBase> from, PassRefPtr<SVGPropertyBase> to, PassRefPtr<SVGPropertyBase> toAtEndOfDurationValue, SVGElement* contextElement) OVERRIDE;
99 virtual float calculateDistance(PassRefPtr<SVGPropertyBase> to, SVGElement* contextElement) OVERRIDE;
101 static AnimatedPropertyType classType() { return AnimatedTransform; }
105 SVGTransform(SVGTransformType, ConstructionMode);
106 explicit SVGTransform(const AffineTransform&);
107 SVGTransform(SVGTransformType, float, const FloatPoint&, const AffineTransform&);
109 friend bool operator==(const SVGTransform& a, const SVGTransform& b);
111 SVGTransformType m_transformType;
114 AffineTransform m_matrix;
117 inline bool operator==(const SVGTransform& a, const SVGTransform& b)
119 return a.m_transformType == b.m_transformType && a.m_angle == b.m_angle && a.m_matrix == b.m_matrix;
122 inline bool operator!=(const SVGTransform& a, const SVGTransform& b)
127 } // namespace WebCore