Typed CSS OM: implement TransformComponent::asMatrix

third_party/WebKit/Source/core/css/cssom/MatrixTransformComponent.cpp

Index: third_party/WebKit/Source/core/css/cssom/MatrixTransformComponent.cpp
diff --git a/third_party/WebKit/Source/core/css/cssom/MatrixTransformComponent.cpp b/third_party/WebKit/Source/core/css/cssom/MatrixTransformComponent.cpp
index 2c60e76e2b9db513ad928c275de8c85e71931873..b7295f8cf5f8cfda6620e890df4192f31b4783df 100644
--- a/third_party/WebKit/Source/core/css/cssom/MatrixTransformComponent.cpp
+++ b/third_party/WebKit/Source/core/css/cssom/MatrixTransformComponent.cpp
@@ -6,6 +6,8 @@
 
 #include "core/css/CSSPrimitiveValue.h"
 #include "core/css/CSSValuePool.h"
+#include "wtf/MathExtras.h"
+#include <cmath>
 
 namespace blink {
 
@@ -29,4 +31,71 @@ PassRefPtrWillBeRawPtr<CSSFunctionValue> MatrixTransformComponent::toCSSValue()
     return result.release();
 }
 
+MatrixTransformComponent* MatrixTransformComponent::perspective(double length)
+{
+    OwnPtr<TransformationMatrix> matrix = TransformationMatrix::create();
+    if (length != 0)
+        matrix->setM34(-1 / length);
+    return new MatrixTransformComponent(matrix.release(), PerspectiveType);
+}
+
+MatrixTransformComponent* MatrixTransformComponent::rotate(double angle)
+{
+    OwnPtr<TransformationMatrix> matrix = TransformationMatrix::create();
+    matrix->rotate(angle);
+    return new MatrixTransformComponent(matrix.release(), RotationType);
+}
+
+MatrixTransformComponent* MatrixTransformComponent::rotate3d(double angle, double x, double y, double z)
+{
+    OwnPtr<TransformationMatrix> matrix = TransformationMatrix::create();
+    matrix->rotate3d(x, y, z, angle);
+    return new MatrixTransformComponent(matrix.release(), Rotation3DType);
+}
+
+MatrixTransformComponent* MatrixTransformComponent::scale(double x, double y)
+{
+    OwnPtr<TransformationMatrix> matrix = TransformationMatrix::create();
+    matrix->setM11(x);
+    matrix->setM22(y);
+    return new MatrixTransformComponent(matrix.release(), ScaleType);
+}
+
+MatrixTransformComponent* MatrixTransformComponent::scale3d(double x, double y, double z)
+{
+    OwnPtr<TransformationMatrix> matrix = TransformationMatrix::create();
+    matrix->setM11(x);
+    matrix->setM22(y);
+    matrix->setM33(z);
+    return new MatrixTransformComponent(matrix.release(), Scale3DType);
+}
+
+MatrixTransformComponent* MatrixTransformComponent::skew(double ax, double ay)
+{
+    double tanAx = std::tan(deg2rad(ax));
+    double tanAy = std::tan(deg2rad(ay));
+
+    OwnPtr<TransformationMatrix> matrix = TransformationMatrix::create();
+    matrix->setM12(tanAy);
+    matrix->setM21(tanAx);
+    return new MatrixTransformComponent(matrix.release(), SkewType);
+}
+
+MatrixTransformComponent* MatrixTransformComponent::translate(double x, double y)
+{
+    OwnPtr<TransformationMatrix> matrix = TransformationMatrix::create();
+    matrix->setM41(x);
+    matrix->setM42(y);
+    return new MatrixTransformComponent(matrix.release(), TranslateType);
+}
+
+MatrixTransformComponent* MatrixTransformComponent::translate3d(double x, double y, double z)
+{
+    OwnPtr<TransformationMatrix> matrix = TransformationMatrix::create();
+    matrix->setM41(x);
+    matrix->setM42(y);
+    matrix->setM43(z);
+    return new MatrixTransformComponent(matrix.release(), Translate3DType);
+}
+
 } // namespace blink