1 /* 2 * Copyright (C) 2014 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include "config.h" 32 #include "core/svg/SVGMatrixTearOff.h" 33 34 #include "bindings/v8/ExceptionState.h" 35 #include "core/dom/ExceptionCode.h" 36 #include "core/svg/SVGTransformTearOff.h" 37 38 namespace WebCore { 39 40 SVGMatrixTearOff::SVGMatrixTearOff(const AffineTransform& staticValue) 41 : m_staticValue(staticValue) 42 , m_contextTransform(0) 43 { 44 ScriptWrappable::init(this); 45 } 46 47 SVGMatrixTearOff::SVGMatrixTearOff(SVGTransformTearOff* transform) 48 : m_contextTransform(transform) 49 { 50 ASSERT(transform); 51 ScriptWrappable::init(this); 52 } 53 54 SVGMatrixTearOff::~SVGMatrixTearOff() 55 { 56 } 57 58 const AffineTransform& SVGMatrixTearOff::value() const 59 { 60 return m_contextTransform ? m_contextTransform->target()->matrix() : m_staticValue; 61 } 62 63 AffineTransform* SVGMatrixTearOff::mutableValue() 64 { 65 return m_contextTransform ? m_contextTransform->target()->mutableMatrix() : &m_staticValue; 66 } 67 68 void SVGMatrixTearOff::commitChange() 69 { 70 if (!m_contextTransform) 71 return; 72 73 m_contextTransform->target()->onMatrixChange(); 74 m_contextTransform->commitChange(); 75 } 76 77 #define DEFINE_SETTER(ATTRIBUTE) \ 78 void SVGMatrixTearOff::set##ATTRIBUTE(double f, ExceptionState& exceptionState) \ 79 { \ 80 if (m_contextTransform && m_contextTransform->isImmutable()) { \ 81 exceptionState.throwDOMException(NoModificationAllowedError, "The attribute is read-only."); \ 82 return; \ 83 } \ 84 mutableValue()->set##ATTRIBUTE(f); \ 85 commitChange(); \ 86 } 87 88 DEFINE_SETTER(A); 89 DEFINE_SETTER(B); 90 DEFINE_SETTER(C); 91 DEFINE_SETTER(D); 92 DEFINE_SETTER(E); 93 DEFINE_SETTER(F); 94 95 #undef DEFINE_SETTER 96 97 PassRefPtr<SVGMatrixTearOff> SVGMatrixTearOff::translate(double tx, double ty) 98 { 99 RefPtr<SVGMatrixTearOff> matrix = create(value()); 100 matrix->mutableValue()->translate(tx, ty); 101 return matrix.release(); 102 } 103 104 PassRefPtr<SVGMatrixTearOff> SVGMatrixTearOff::scale(double s) 105 { 106 RefPtr<SVGMatrixTearOff> matrix = create(value()); 107 matrix->mutableValue()->scale(s, s); 108 return matrix.release(); 109 } 110 111 PassRefPtr<SVGMatrixTearOff> SVGMatrixTearOff::scaleNonUniform(double sx, double sy) 112 { 113 RefPtr<SVGMatrixTearOff> matrix = create(value()); 114 matrix->mutableValue()->scale(sx, sy); 115 return matrix.release(); 116 } 117 118 PassRefPtr<SVGMatrixTearOff> SVGMatrixTearOff::rotate(double d) 119 { 120 RefPtr<SVGMatrixTearOff> matrix = create(value()); 121 matrix->mutableValue()->rotate(d); 122 return matrix.release(); 123 } 124 125 PassRefPtr<SVGMatrixTearOff> SVGMatrixTearOff::flipX() 126 { 127 RefPtr<SVGMatrixTearOff> matrix = create(value()); 128 matrix->mutableValue()->flipX(); 129 return matrix.release(); 130 } 131 132 PassRefPtr<SVGMatrixTearOff> SVGMatrixTearOff::flipY() 133 { 134 RefPtr<SVGMatrixTearOff> matrix = create(value()); 135 matrix->mutableValue()->flipY(); 136 return matrix.release(); 137 } 138 139 PassRefPtr<SVGMatrixTearOff> SVGMatrixTearOff::skewX(double angle) 140 { 141 RefPtr<SVGMatrixTearOff> matrix = create(value()); 142 matrix->mutableValue()->skewX(angle); 143 return matrix.release(); 144 } 145 146 PassRefPtr<SVGMatrixTearOff> SVGMatrixTearOff::skewY(double angle) 147 { 148 RefPtr<SVGMatrixTearOff> matrix = create(value()); 149 matrix->mutableValue()->skewY(angle); 150 return matrix.release(); 151 } 152 153 PassRefPtr<SVGMatrixTearOff> SVGMatrixTearOff::multiply(PassRefPtr<SVGMatrixTearOff> other) 154 { 155 RefPtr<SVGMatrixTearOff> matrix = create(value()); 156 *matrix->mutableValue() *= other->value(); 157 return matrix.release(); 158 } 159 160 PassRefPtr<SVGMatrixTearOff> SVGMatrixTearOff::inverse(ExceptionState& exceptionState) 161 { 162 AffineTransform transform = value().inverse(); 163 if (!value().isInvertible()) 164 exceptionState.throwDOMException(InvalidStateError, "The matrix is not invertible."); 165 166 return create(transform); 167 } 168 169 PassRefPtr<SVGMatrixTearOff> SVGMatrixTearOff::rotateFromVector(double x, double y, ExceptionState& exceptionState) 170 { 171 if (!x || !y) 172 exceptionState.throwDOMException(InvalidAccessError, "Arguments cannot be zero."); 173 174 AffineTransform copy = value(); 175 copy.rotateFromVector(x, y); 176 return create(copy); 177 } 178 179 } 180