PerspectiveTransformOperation.h [plain text]
#ifndef PerspectiveTransformOperation_h
#define PerspectiveTransformOperation_h
#include "Length.h"
#include "LengthFunctions.h"
#include "TransformOperation.h"
namespace WebCore {
class PerspectiveTransformOperation final : public TransformOperation {
public:
static PassRefPtr<PerspectiveTransformOperation> create(const Length& p)
{
return adoptRef(new PerspectiveTransformOperation(p));
}
Length perspective() const { return m_p; }
private:
virtual bool isIdentity() const override { return !floatValueForLength(m_p, 1); }
virtual OperationType type() const override { return PERSPECTIVE; }
virtual bool isSameType(const TransformOperation& o) const override { return o.type() == PERSPECTIVE; }
virtual bool operator==(const TransformOperation&) const override;
virtual bool apply(TransformationMatrix& transform, const FloatSize&) const override
{
transform.applyPerspective(floatValueForLength(m_p, 1));
return false;
}
virtual PassRefPtr<TransformOperation> blend(const TransformOperation* from, double progress, bool blendToIdentity = false) override;
PerspectiveTransformOperation(const Length& p)
: m_p(p)
{
ASSERT(p.isFixed());
}
Length m_p;
};
TRANSFORMOPERATION_TYPE_CASTS(PerspectiveTransformOperation, type() == TransformOperation::PERSPECTIVE);
}
#endif // PerspectiveTransformOperation_h