third_party/WebKit/Source/core/svg/SVGMatrixTearOff.h

/*
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#ifndef SVGMatrixTearOff_h
#define SVGMatrixTearOff_h

#include "bindings/core/v8/ScriptWrappable.h"
#include "core/CoreExport.h"
#include "platform/heap/Handle.h"
#include "platform/transforms/AffineTransform.h"

namespace blink {

class ExceptionState;
class SVGTransformTearOff;

// SVGMatrixTearOff wraps a AffineTransform for Javascript.
// Its instance can either hold a static value, or this can be teared off from
// |SVGTransform.matrix|.  This does not derive from SVGPropertyTearOff, as its
// instances are never tied to an animated property nor an XML attribute.
class CORE_EXPORT SVGMatrixTearOff final
    : public GarbageCollected<SVGMatrixTearOff>,
      public ScriptWrappable {
  DEFINE_WRAPPERTYPEINFO();

 public:
  static SVGMatrixTearOff* create(const AffineTransform& value) {
    return new SVGMatrixTearOff(value);
  }

  static SVGMatrixTearOff* create(SVGTransformTearOff* target) {
    return new SVGMatrixTearOff(target);
  }

  double a() { return value().a(); }
  double b() { return value().b(); }
  double c() { return value().c(); }
  double d() { return value().d(); }
  double e() { return value().e(); }
  double f() { return value().f(); }

  void setA(double, ExceptionState&);
  void setB(double, ExceptionState&);
  void setC(double, ExceptionState&);
  void setD(double, ExceptionState&);
  void setE(double, ExceptionState&);
  void setF(double, ExceptionState&);

  SVGMatrixTearOff* translate(double tx, double ty);
  SVGMatrixTearOff* scale(double);
  SVGMatrixTearOff* scaleNonUniform(double sx, double sy);
  SVGMatrixTearOff* rotate(double);
  SVGMatrixTearOff* flipX();
  SVGMatrixTearOff* flipY();
  SVGMatrixTearOff* skewX(double);
  SVGMatrixTearOff* skewY(double);
  SVGMatrixTearOff* multiply(SVGMatrixTearOff*);
  SVGMatrixTearOff* inverse(ExceptionState&);
  SVGMatrixTearOff* rotateFromVector(double x, double y, ExceptionState&);

  SVGTransformTearOff* contextTransform() { return m_contextTransform; }

  const AffineTransform& value() const;

  DECLARE_VIRTUAL_TRACE();

  DECLARE_VIRTUAL_TRACE_WRAPPERS();

 private:
  explicit SVGMatrixTearOff(const AffineTransform&);
  explicit SVGMatrixTearOff(SVGTransformTearOff*);

  AffineTransform* mutableValue();
  void commitChange();

  AffineTransform m_staticValue;

  Member<SVGTransformTearOff> m_contextTransform;
};

}  // namespace blink

#endif  // SVGMatrixTearOff_h