third_party/WebKit/Source/core/svg/SVGMatrixTearOff.cpp

   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
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   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.
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  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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  20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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  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/core/v8/ExceptionState.h"
  35 #include "core/dom/ExceptionCode.h"
  36 #include "core/svg/SVGElement.h"
  37 #include "core/svg/SVGTransformTearOff.h"
  38
  39 namespace blink {
  40
  41 SVGMatrixTearOff::SVGMatrixTearOff(const AffineTransform& staticValue)
  42     : m_staticValue(staticValue)
  43     , m_contextTransform(nullptr)
  44 {
  45 }
  46
  47 SVGMatrixTearOff::SVGMatrixTearOff(SVGTransformTearOff* transform)
  48     : m_contextTransform(transform)
  49 {
  50     ASSERT(transform);
  51 }
  52
  53 SVGMatrixTearOff::~SVGMatrixTearOff()
  54 {
  55 }
  56
  57 DEFINE_TRACE(SVGMatrixTearOff)
  58 {
  59     visitor->trace(m_contextTransform);
  60 }
  61
  62 const AffineTransform& SVGMatrixTearOff::value() const
  63 {
  64     return m_contextTransform ? m_contextTransform->target()->matrix() : m_staticValue;
  65 }
  66
  67 AffineTransform* SVGMatrixTearOff::mutableValue()
  68 {
  69     return m_contextTransform ? m_contextTransform->target()->mutableMatrix() : &m_staticValue;
  70 }
  71
  72 void SVGMatrixTearOff::commitChange()
  73 {
  74     if (!m_contextTransform)
  75         return;
  76
  77     m_contextTransform->target()->onMatrixChange();
  78     m_contextTransform->commitChange();
  79 }
  80
  81 #define DEFINE_SETTER(ATTRIBUTE) \
  82     void SVGMatrixTearOff::set##ATTRIBUTE(double f, ExceptionState& exceptionState) \
  83     { \
  84         if (m_contextTransform && m_contextTransform->isImmutable()) { \
  85             exceptionState.throwDOMException(NoModificationAllowedError, "The attribute is read-only."); \
  86             return; \
  87         } \
  88         mutableValue()->set##ATTRIBUTE(f); \
  89         commitChange(); \
  90     }
  91
  92 DEFINE_SETTER(A);
  93 DEFINE_SETTER(B);
  94 DEFINE_SETTER(C);
  95 DEFINE_SETTER(D);
  96 DEFINE_SETTER(E);
  97 DEFINE_SETTER(F);
  98
  99 #undef DEFINE_SETTER
 100
 101 PassRefPtrWillBeRawPtr<SVGMatrixTearOff> SVGMatrixTearOff::translate(double tx, double ty)
 102 {
 103     RefPtrWillBeRawPtr<SVGMatrixTearOff> matrix = create(value());
 104     matrix->mutableValue()->translate(tx, ty);
 105     return matrix.release();
 106 }
 107
 108 PassRefPtrWillBeRawPtr<SVGMatrixTearOff> SVGMatrixTearOff::scale(double s)
 109 {
 110     RefPtrWillBeRawPtr<SVGMatrixTearOff> matrix = create(value());
 111     matrix->mutableValue()->scale(s, s);
 112     return matrix.release();
 113 }
 114
 115 PassRefPtrWillBeRawPtr<SVGMatrixTearOff> SVGMatrixTearOff::scaleNonUniform(double sx, double sy)
 116 {
 117     RefPtrWillBeRawPtr<SVGMatrixTearOff> matrix = create(value());
 118     matrix->mutableValue()->scale(sx, sy);
 119     return matrix.release();
 120 }
 121
 122 PassRefPtrWillBeRawPtr<SVGMatrixTearOff> SVGMatrixTearOff::rotate(double d)
 123 {
 124     RefPtrWillBeRawPtr<SVGMatrixTearOff> matrix = create(value());
 125     matrix->mutableValue()->rotate(d);
 126     return matrix.release();
 127 }
 128
 129 PassRefPtrWillBeRawPtr<SVGMatrixTearOff> SVGMatrixTearOff::flipX()
 130 {
 131     RefPtrWillBeRawPtr<SVGMatrixTearOff> matrix = create(value());
 132     matrix->mutableValue()->flipX();
 133     return matrix.release();
 134 }
 135
 136 PassRefPtrWillBeRawPtr<SVGMatrixTearOff> SVGMatrixTearOff::flipY()
 137 {
 138     RefPtrWillBeRawPtr<SVGMatrixTearOff> matrix = create(value());
 139     matrix->mutableValue()->flipY();
 140     return matrix.release();
 141 }
 142
 143 PassRefPtrWillBeRawPtr<SVGMatrixTearOff> SVGMatrixTearOff::skewX(double angle)
 144 {
 145     RefPtrWillBeRawPtr<SVGMatrixTearOff> matrix = create(value());
 146     matrix->mutableValue()->skewX(angle);
 147     return matrix.release();
 148 }
 149
 150 PassRefPtrWillBeRawPtr<SVGMatrixTearOff> SVGMatrixTearOff::skewY(double angle)
 151 {
 152     RefPtrWillBeRawPtr<SVGMatrixTearOff> matrix = create(value());
 153     matrix->mutableValue()->skewY(angle);
 154     return matrix.release();
 155 }
 156
 157 PassRefPtrWillBeRawPtr<SVGMatrixTearOff> SVGMatrixTearOff::multiply(PassRefPtrWillBeRawPtr<SVGMatrixTearOff> other)
 158 {
 159     RefPtrWillBeRawPtr<SVGMatrixTearOff> matrix = create(value());
 160     *matrix->mutableValue() *= other->value();
 161     return matrix.release();
 162 }
 163
 164 PassRefPtrWillBeRawPtr<SVGMatrixTearOff> SVGMatrixTearOff::inverse(ExceptionState& exceptionState)
 165 {
 166     AffineTransform transform = value().inverse();
 167     if (!value().isInvertible())
 168         exceptionState.throwDOMException(InvalidStateError, "The matrix is not invertible.");
 169
 170     return create(transform);
 171 }
 172
 173 PassRefPtrWillBeRawPtr<SVGMatrixTearOff> SVGMatrixTearOff::rotateFromVector(double x, double y, ExceptionState& exceptionState)
 174 {
 175     if (!x || !y)
 176         exceptionState.throwDOMException(InvalidAccessError, "Arguments cannot be zero.");
 177
 178     AffineTransform copy = value();
 179     copy.rotateFromVector(x, y);
 180     return create(copy);
 181 }
 182
 183 }