gecko-dev/gfx/layers/basic/BasicCanvasLayer.h

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C++

/* -*- 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 GFX_BASICCANVASLAYER_H
#define GFX_BASICCANVASLAYER_H
#include "BasicImplData.h" // for BasicImplData
#include "BasicLayers.h" // for BasicLayerManager
#include "Layers.h" // for CanvasLayer, etc
#include "nsDebug.h" // for NS_ASSERTION
#include "nsRegion.h" // for nsIntRegion
namespace mozilla {
namespace layers {
class BasicCanvasLayer : public CanvasLayer, public BasicImplData {
public:
explicit BasicCanvasLayer(BasicLayerManager* aLayerManager)
: CanvasLayer(aLayerManager, static_cast<BasicImplData*>(this)) {}
void SetVisibleRegion(const LayerIntRegion& aRegion) override {
NS_ASSERTION(BasicManager()->InConstruction(),
"Can only set properties in construction phase");
CanvasLayer::SetVisibleRegion(aRegion);
}
void Paint(gfx::DrawTarget* aDT, const gfx::Point& aDeviceOffset,
Layer* aMaskLayer) override;
protected:
BasicLayerManager* BasicManager() {
return static_cast<BasicLayerManager*>(mManager);
}
CanvasRenderer* CreateCanvasRendererInternal() override;
};
} // namespace layers
} // namespace mozilla
#endif