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27 #include "HitTestingTransformState.h"
29 #include <wtf/PassOwnPtr.h>
33 void HitTestingTransformState::translate(int x, int y, TransformAccumulation accumulate)
35 m_accumulatedTransform.translate(x, y);
36 if (accumulate == FlattenTransform)
37 flattenWithTransform(m_accumulatedTransform);
39 m_accumulatingTransform = accumulate == AccumulateTransform;
42 void HitTestingTransformState::applyTransform(const TransformationMatrix& transformFromContainer, TransformAccumulation accumulate)
44 m_accumulatedTransform.multiply(transformFromContainer);
45 if (accumulate == FlattenTransform)
46 flattenWithTransform(m_accumulatedTransform);
48 m_accumulatingTransform = accumulate == AccumulateTransform;
51 void HitTestingTransformState::flatten()
53 flattenWithTransform(m_accumulatedTransform);
56 void HitTestingTransformState::flattenWithTransform(const TransformationMatrix& t)
58 TransformationMatrix inverseTransform = t.inverse();
59 m_lastPlanarPoint = inverseTransform.projectPoint(m_lastPlanarPoint);
60 m_lastPlanarQuad = inverseTransform.projectQuad(m_lastPlanarQuad);
61 m_lastPlanarArea = inverseTransform.projectQuad(m_lastPlanarArea);
63 m_accumulatedTransform.makeIdentity();
64 m_accumulatingTransform = false;
67 FloatPoint HitTestingTransformState::mappedPoint() const
69 return m_accumulatedTransform.inverse().projectPoint(m_lastPlanarPoint);
72 FloatQuad HitTestingTransformState::mappedQuad() const
74 return m_accumulatedTransform.inverse().projectQuad(m_lastPlanarQuad);
77 FloatQuad HitTestingTransformState::mappedArea() const
79 return m_accumulatedTransform.inverse().projectQuad(m_lastPlanarArea);
82 LayoutRect HitTestingTransformState::boundsOfMappedArea() const
84 return m_accumulatedTransform.inverse().clampedBoundsOfProjectedQuad(m_lastPlanarArea);
87 } // namespace WebCore