Index: Source/core/dom/DOMMatrix.cpp |
diff --git a/Source/core/dom/DOMMatrix.cpp b/Source/core/dom/DOMMatrix.cpp |
index 59b27ccf9fcece18644f4a4e4be5a3b4d25115a4..e1fe9ae0ba05ee0838cccfd49e1ce0319bafdd8b 100644 |
--- a/Source/core/dom/DOMMatrix.cpp |
+++ b/Source/core/dom/DOMMatrix.cpp |
@@ -52,4 +52,31 @@ void DOMMatrix::setIs2D(bool value) |
m_is2D = value; |
} |
+DOMMatrix* DOMMatrix::translateSelf(double tx, double ty, double tz) |
+{ |
+ if (!tx && !ty && !tz) |
+ return this; |
+ |
+ if (tz) |
+ m_is2D = false; |
+ |
+ if (isIdentity()) { |
krit
2014/08/08 06:24:15
Why don't you use TransformationMatrix here?
zino
2014/08/16 03:23:32
Done.
|
+ m_matrix[3][0] = tx; |
+ m_matrix[3][1] = ty; |
+ m_matrix[3][2] = tz; |
+ } else { |
+ m_matrix[3][0] += tx * m11() + ty * m21(); |
+ m_matrix[3][1] += tx * m12() + ty * m22(); |
+ |
+ if (!m_is2D) { |
+ m_matrix[3][0] += tz * m31(); |
+ m_matrix[3][1] += tz * m32(); |
+ m_matrix[3][2] += tx * m13() + ty * m23() + tz * m33(); |
+ m_matrix[3][3] += tx * m14() + ty * m24() + tz * m34(); |
+ } |
+ } |
+ |
+ return this; |
+} |
+ |
} // namespace blink |