2009-02-05 Simon Fraser <simon.fraser@apple.com>

        Reviewed by Anders Carlsson

        Add some methods to the TransformOperation classes that are required
        by GraphicsLayer when ACCELERATED_COMPOSITING is turned on.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@40702 268f45cc-cd09-0410-ab3c-d52691b4dbfc

WebCore/ChangeLog

+2009-02-05  Simon Fraser  <simon.fraser@apple.com>
+
+        Reviewed by Anders Carlsson
+
+        Add some methods to the TransformOperation classes that are required
+        by GraphicsLayer when ACCELERATED_COMPOSITING is turned on.
+
+        * platform/graphics/transforms/MatrixTransformOperation.h:
+        (WebCore::MatrixTransformOperation::create):
+        (WebCore::MatrixTransformOperation::MatrixTransformOperation):
+        * platform/graphics/transforms/ScaleTransformOperation.h:
+        (WebCore::ScaleTransformOperation::x):
+        (WebCore::ScaleTransformOperation::y):
+        * platform/graphics/transforms/TranslateTransformOperation.h:
+        (WebCore::TranslateTransformOperation::x):
+        (WebCore::TranslateTransformOperation::y):
+
 2009-02-05  Simon Fraser  <simon.fraser@apple.com>
         Minor clenaup: fix brace style in CompositeAnimationPrivate::updateTransitions(),

WebCore/platform/graphics/transforms/MatrixTransformOperation.h

@@ -26,6 +26,7 @@
 #define MatrixTransformOperation_h
 
 #include "TransformOperation.h"
+#include "TransformationMatrix.h"
 
 namespace WebCore {
 
@@ -36,6 +37,11 @@ public:
         return adoptRef(new MatrixTransformOperation(a, b, c, d, e, f));
     }
 
+    static PassRefPtr<MatrixTransformOperation> create(const TransformationMatrix& t)
+    {
+        return adoptRef(new MatrixTransformOperation(t));
+    }
+
 private:
     virtual bool isIdentity() const { return m_a == 1 && m_b == 0 && m_c == 0 && m_d == 1 && m_e == 0 && m_f == 0; }
     virtual OperationType getOperationType() const { return MATRIX; }
@@ -68,6 +74,16 @@ private:
         , m_f(f)
     {
     }
+
+    MatrixTransformOperation(const TransformationMatrix& t)
+        : m_a(t.a())
+        , m_b(t.b())
+        , m_c(t.c())
+        , m_d(t.d())
+        , m_e(t.e())
+        , m_f(t.f())
+    {
+    }
     
     double m_a;
     double m_b;

WebCore/platform/graphics/transforms/ScaleTransformOperation.h

@@ -36,6 +36,9 @@ public:
         return adoptRef(new ScaleTransformOperation(sx, sy, type));
     }
 
+    double x() const { return m_x; }
+    double y() const { return m_y; }
+
 private:
     virtual bool isIdentity() const { return m_x == 1 &&  m_y == 1; }
     virtual OperationType getOperationType() const { return m_type; }

WebCore/platform/graphics/transforms/TranslateTransformOperation.h

@@ -37,6 +37,10 @@ public:
         return adoptRef(new TranslateTransformOperation(tx, ty, type));
     }
 
+    double x(const IntSize& borderBoxSize) const { return m_x.calcFloatValue(borderBoxSize.width()); }
+    double y(const IntSize& borderBoxSize) const { return m_y.calcFloatValue(borderBoxSize.height()); }
+
+private:
     virtual bool isIdentity() const { return m_x.calcFloatValue(1) == 0 && m_y.calcFloatValue(1) == 0; }
     virtual OperationType getOperationType() const { return m_type; }
     virtual bool isSameType(const TransformOperation& o) const { return o.getOperationType() == m_type; }
@@ -57,7 +61,6 @@ public:
 
     virtual PassRefPtr<TransformOperation> blend(const TransformOperation* from, double progress, bool blendToIdentity = false);
 
-private:
     TranslateTransformOperation(const Length& tx, const Length& ty, OperationType type)
         : m_x(tx)
         , m_y(ty)