mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-11 16:32:59 +00:00
84 lines
2.0 KiB
C++
84 lines
2.0 KiB
C++
/* 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 mozilla_dom_CanvasGradient_h
|
|
#define mozilla_dom_CanvasGradient_h
|
|
|
|
#include "mozilla/Attributes.h"
|
|
#include "nsTArray.h"
|
|
#include "mozilla/RefPtr.h"
|
|
#include "mozilla/dom/CanvasRenderingContext2DBinding.h"
|
|
#include "mozilla/dom/CanvasRenderingContext2D.h"
|
|
#include "mozilla/gfx/2D.h"
|
|
#include "nsWrapperCache.h"
|
|
#include "gfxGradientCache.h"
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
|
|
class CanvasGradient : public nsWrapperCache
|
|
{
|
|
public:
|
|
NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(CanvasGradient)
|
|
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(CanvasGradient)
|
|
|
|
enum class Type : uint8_t {
|
|
LINEAR = 0,
|
|
RADIAL
|
|
};
|
|
|
|
Type GetType()
|
|
{
|
|
return mType;
|
|
}
|
|
|
|
mozilla::gfx::GradientStops *
|
|
GetGradientStopsForTarget(mozilla::gfx::DrawTarget *aRT)
|
|
{
|
|
if (mStops && mStops->GetBackendType() == aRT->GetBackendType()) {
|
|
return mStops;
|
|
}
|
|
|
|
mStops =
|
|
gfx::gfxGradientCache::GetOrCreateGradientStops(aRT,
|
|
mRawStops,
|
|
gfx::ExtendMode::CLAMP);
|
|
|
|
return mStops;
|
|
}
|
|
|
|
// WebIDL
|
|
void AddColorStop(float offset, const nsAString& colorstr, ErrorResult& rv);
|
|
|
|
JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override
|
|
{
|
|
return CanvasGradient_Binding::Wrap(aCx, this, aGivenProto);
|
|
}
|
|
|
|
CanvasRenderingContext2D* GetParentObject()
|
|
{
|
|
return mContext;
|
|
}
|
|
|
|
protected:
|
|
friend struct CanvasBidiProcessor;
|
|
|
|
CanvasGradient(CanvasRenderingContext2D* aContext, Type aType)
|
|
: mContext(aContext)
|
|
, mType(aType)
|
|
{
|
|
}
|
|
|
|
RefPtr<CanvasRenderingContext2D> mContext;
|
|
nsTArray<mozilla::gfx::GradientStop> mRawStops;
|
|
RefPtr<mozilla::gfx::GradientStops> mStops;
|
|
Type mType;
|
|
virtual ~CanvasGradient() {}
|
|
};
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|
|
|
|
#endif // mozilla_dom_CanvasGradient_h
|