gecko-dev/dom/svg/SVGTransformableElement.h

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef SVGTransformableElement_h
#define SVGTransformableElement_h
#include "nsAutoPtr.h"
#include "SVGAnimatedTransformList.h"
#include "gfxMatrix.h"
#include "mozilla/Attributes.h"
#include "mozilla/dom/SVGElement.h"
#include "mozilla/gfx/Matrix.h"
namespace mozilla {
namespace dom {
class DOMSVGAnimatedTransformList;
class SVGGraphicsElement;
class SVGMatrix;
class SVGIRect;
struct SVGBoundingBoxOptions;
class SVGTransformableElement : public SVGElement {
public:
explicit SVGTransformableElement(already_AddRefed<dom::NodeInfo>&& aNodeInfo)
: SVGElement(std::move(aNodeInfo)) {}
virtual ~SVGTransformableElement() = default;
virtual nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override = 0;
// WebIDL
already_AddRefed<DOMSVGAnimatedTransformList> Transform();
SVGElement* GetNearestViewportElement();
SVGElement* GetFarthestViewportElement();
MOZ_CAN_RUN_SCRIPT
already_AddRefed<SVGIRect> GetBBox(const SVGBoundingBoxOptions& aOptions,
ErrorResult& rv);
already_AddRefed<SVGMatrix> GetCTM();
already_AddRefed<SVGMatrix> GetScreenCTM();
already_AddRefed<SVGMatrix> GetTransformToElement(
SVGGraphicsElement& aElement, ErrorResult& rv);
// nsIContent interface
NS_IMETHOD_(bool) IsAttributeMapped(const nsAtom* aAttribute) const override;
nsChangeHint GetAttributeChangeHint(const nsAtom* aAttribute,
int32_t aModType) const override;
// SVGElement overrides
virtual bool IsEventAttributeNameInternal(nsAtom* aName) override;
virtual gfxMatrix PrependLocalTransformsTo(
const gfxMatrix& aMatrix,
SVGTransformTypes aWhich = eAllTransforms) const override;
virtual const gfx::Matrix* GetAnimateMotionTransform() const override;
virtual void SetAnimateMotionTransform(const gfx::Matrix* aMatrix) override;
virtual SVGAnimatedTransformList* GetAnimatedTransformList(
uint32_t aFlags = 0) override;
virtual nsStaticAtom* GetTransformListAttrName() const override {
return nsGkAtoms::transform;
}
virtual bool IsTransformable() override { return true; }
protected:
/**
* Helper for overrides of PrependLocalTransformsTo. If both arguments are
* provided they are multiplied in the order in which the arguments appear,
* and the result is returned. If neither argument is provided, the identity
* matrix is returned. If only one argument is provided its transform is
* returned.
*/
static gfxMatrix GetUserToParentTransform(
const gfx::Matrix* aAnimateMotionTransform,
const SVGAnimatedTransformList* aTransforms);
nsAutoPtr<SVGAnimatedTransformList> mTransforms;
// XXX maybe move this to property table, to save space on un-animated elems?
nsAutoPtr<gfx::Matrix> mAnimateMotionTransform;
};
} // namespace dom
} // namespace mozilla
#endif // SVGTransformableElement_h