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27 #include "WebKitCSSMatrix.h"
29 #include "CSSParser.h"
30 #include "CSSStyleSelector.h"
31 #include "CSSMutableStyleDeclaration.h"
32 #include "CSSPropertyNames.h"
33 #include "ExceptionCode.h"
34 #include "RenderStyle.h"
35 #include <wtf/MathExtras.h>
39 WebKitCSSMatrix::WebKitCSSMatrix()
44 WebKitCSSMatrix::WebKitCSSMatrix(const WebKitCSSMatrix& m)
46 , m_matrix(m.m_matrix)
50 WebKitCSSMatrix::WebKitCSSMatrix(const TransformationMatrix& m)
56 WebKitCSSMatrix::WebKitCSSMatrix(const String& s, ExceptionCode& ec)
59 setMatrixValue(s, ec);
62 WebKitCSSMatrix::~WebKitCSSMatrix()
66 void WebKitCSSMatrix::setMatrixValue(const String& string, ExceptionCode& ec)
68 CSSParser p(useStrictParsing());
69 RefPtr<CSSMutableStyleDeclaration> styleDeclaration = CSSMutableStyleDeclaration::create();
70 if (p.parseValue(styleDeclaration.get(), CSSPropertyWebkitTransform, string, true)) {
71 // Convert to TransformOperations. This can fail if a property
72 // requires style (i.e., param uses 'ems' or 'exs')
73 PassRefPtr<CSSValue> val = styleDeclaration->getPropertyCSSValue(CSSPropertyWebkitTransform);
74 TransformOperations operations;
75 if (!CSSStyleSelector::createTransformOperations(val.get(), 0, 0, operations)) {
80 // Convert transform operations to a TransformationMatrix. This can fail
81 // if a param has a percentage ('%')
82 TransformationMatrix t;
83 for (unsigned i = 0; i < operations.operations().size(); ++i) {
84 if (operations.operations()[i].get()->apply(t, IntSize(0, 0))) {
92 } else if (!string.isEmpty()) // There is something there but parsing failed
96 // Perform a concatenation of the matrices (this * secondMatrix)
97 PassRefPtr<WebKitCSSMatrix> WebKitCSSMatrix::multiply(WebKitCSSMatrix* secondMatrix) const
102 TransformationMatrix tmp(secondMatrix->m_matrix);
103 tmp.multiply(m_matrix);
104 return WebKitCSSMatrix::create(tmp);
107 PassRefPtr<WebKitCSSMatrix> WebKitCSSMatrix::inverse(ExceptionCode& ec) const
109 if (!m_matrix.isInvertible()) {
110 ec = NOT_SUPPORTED_ERR;
114 return WebKitCSSMatrix::create(m_matrix.inverse());
117 PassRefPtr<WebKitCSSMatrix> WebKitCSSMatrix::translate(double x, double y, double z) const
125 return WebKitCSSMatrix::create(TransformationMatrix(m_matrix).translate3d(x, y, z));
128 PassRefPtr<WebKitCSSMatrix> WebKitCSSMatrix::scale(double scaleX, double scaleY, double scaleZ) const
136 return WebKitCSSMatrix::create(TransformationMatrix(m_matrix).scale3d(scaleX, scaleY, scaleZ));
139 PassRefPtr<WebKitCSSMatrix> WebKitCSSMatrix::rotate(double rotX, double rotY, double rotZ) const
144 if (isnan(rotY) && isnan(rotZ)) {
154 return WebKitCSSMatrix::create(TransformationMatrix(m_matrix).rotate3d(rotX, rotY, rotZ));
157 PassRefPtr<WebKitCSSMatrix> WebKitCSSMatrix::rotateAxisAngle(double x, double y, double z, double angle) const
167 if (x == 0 && y == 0 && z == 0)
169 return WebKitCSSMatrix::create(TransformationMatrix(m_matrix).rotate3d(x, y, z, angle));
173 String WebKitCSSMatrix::toString() const
175 // FIXME - Need to ensure valid CSS floating point values (https://bugs.webkit.org/show_bug.cgi?id=20674)
176 if (m_matrix.isAffine())
177 return String::format("matrix(%f, %f, %f, %f, %f, %f)",
178 m_matrix.a(), m_matrix.b(), m_matrix.c(), m_matrix.d(), m_matrix.e(), m_matrix.f());
179 return String::format("matrix3d(%f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f)",
180 m_matrix.m11(), m_matrix.m12(), m_matrix.m13(), m_matrix.m14(),
181 m_matrix.m21(), m_matrix.m22(), m_matrix.m23(), m_matrix.m24(),
182 m_matrix.m31(), m_matrix.m32(), m_matrix.m33(), m_matrix.m34(),
183 m_matrix.m41(), m_matrix.m42(), m_matrix.m43(), m_matrix.m44());
186 } // namespace WebCore