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27 #include "WebKitCSSMatrix.h"
29 #include "CSSParser.h"
30 #include "CSSPropertyNames.h"
31 #include "CSSValueKeywords.h"
32 #include "ExceptionCode.h"
33 #include "StylePropertySet.h"
34 #include "StyleResolver.h"
35 #include <wtf/MathExtras.h>
39 WebKitCSSMatrix::WebKitCSSMatrix(const TransformationMatrix& m)
44 WebKitCSSMatrix::WebKitCSSMatrix(const String& s, ExceptionCode& ec)
46 setMatrixValue(s, ec);
49 WebKitCSSMatrix::~WebKitCSSMatrix()
53 void WebKitCSSMatrix::setMatrixValue(const String& string, ExceptionCode& ec)
58 RefPtr<StylePropertySet> styleDeclaration = StylePropertySet::create();
59 if (CSSParser::parseValue(styleDeclaration.get(), CSSPropertyWebkitTransform, string, true, CSSStrictMode, 0)) {
60 // Convert to TransformOperations. This can fail if a property
61 // requires style (i.e., param uses 'ems' or 'exs')
62 RefPtr<CSSValue> value = styleDeclaration->getPropertyCSSValue(CSSPropertyWebkitTransform);
64 // Check for a "none" or empty transform. In these cases we can use the default identity matrix.
65 if (!value || (value->isPrimitiveValue() && (static_cast<CSSPrimitiveValue*>(value.get()))->getIdent() == CSSValueNone))
68 TransformOperations operations;
69 if (!StyleResolver::createTransformOperations(value.get(), 0, 0, operations)) {
74 // Convert transform operations to a TransformationMatrix. This can fail
75 // if a param has a percentage ('%')
76 TransformationMatrix t;
77 for (unsigned i = 0; i < operations.operations().size(); ++i) {
78 if (operations.operations()[i].get()->apply(t, IntSize(0, 0))) {
86 } else // There is something there but parsing failed.
90 // Perform a concatenation of the matrices (this * secondMatrix)
91 PassRefPtr<WebKitCSSMatrix> WebKitCSSMatrix::multiply(WebKitCSSMatrix* secondMatrix) const
96 return WebKitCSSMatrix::create(TransformationMatrix(m_matrix).multiply(secondMatrix->m_matrix));
99 PassRefPtr<WebKitCSSMatrix> WebKitCSSMatrix::inverse(ExceptionCode& ec) const
101 if (!m_matrix.isInvertible()) {
102 ec = NOT_SUPPORTED_ERR;
106 return WebKitCSSMatrix::create(m_matrix.inverse());
109 PassRefPtr<WebKitCSSMatrix> WebKitCSSMatrix::translate(double x, double y, double z) const
117 return WebKitCSSMatrix::create(TransformationMatrix(m_matrix).translate3d(x, y, z));
120 PassRefPtr<WebKitCSSMatrix> WebKitCSSMatrix::scale(double scaleX, double scaleY, double scaleZ) const
128 return WebKitCSSMatrix::create(TransformationMatrix(m_matrix).scale3d(scaleX, scaleY, scaleZ));
131 PassRefPtr<WebKitCSSMatrix> WebKitCSSMatrix::rotate(double rotX, double rotY, double rotZ) const
136 if (isnan(rotY) && isnan(rotZ)) {
146 return WebKitCSSMatrix::create(TransformationMatrix(m_matrix).rotate3d(rotX, rotY, rotZ));
149 PassRefPtr<WebKitCSSMatrix> WebKitCSSMatrix::rotateAxisAngle(double x, double y, double z, double angle) const
159 if (x == 0 && y == 0 && z == 0)
161 return WebKitCSSMatrix::create(TransformationMatrix(m_matrix).rotate3d(x, y, z, angle));
164 PassRefPtr<WebKitCSSMatrix> WebKitCSSMatrix::skewX(double angle) const
168 return WebKitCSSMatrix::create(TransformationMatrix(m_matrix).skewX(angle));
171 PassRefPtr<WebKitCSSMatrix> WebKitCSSMatrix::skewY(double angle) const
175 return WebKitCSSMatrix::create(TransformationMatrix(m_matrix).skewY(angle));
178 String WebKitCSSMatrix::toString() const
180 // FIXME - Need to ensure valid CSS floating point values (https://bugs.webkit.org/show_bug.cgi?id=20674)
181 if (m_matrix.isAffine())
182 return String::format("matrix(%f, %f, %f, %f, %f, %f)",
183 m_matrix.a(), m_matrix.b(), m_matrix.c(), m_matrix.d(), m_matrix.e(), m_matrix.f());
184 return String::format("matrix3d(%f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f, %f)",
185 m_matrix.m11(), m_matrix.m12(), m_matrix.m13(), m_matrix.m14(),
186 m_matrix.m21(), m_matrix.m22(), m_matrix.m23(), m_matrix.m24(),
187 m_matrix.m31(), m_matrix.m32(), m_matrix.m33(), m_matrix.m34(),
188 m_matrix.m41(), m_matrix.m42(), m_matrix.m43(), m_matrix.m44());
191 } // namespace WebCore