зеркало из https://github.com/mozilla/gecko-dev.git
103 строки
3.1 KiB
C++
103 строки
3.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
* 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_BASICLAYERSIMPL_H
|
|
#define GFX_BASICLAYERSIMPL_H
|
|
|
|
#include "BasicImplData.h" // for BasicImplData
|
|
#include "BasicLayers.h" // for BasicLayerManager
|
|
#include "ReadbackLayer.h" // for ReadbackLayer
|
|
#include "gfxASurface.h" // for gfxASurface
|
|
#include "gfxContext.h" // for gfxContext, etc
|
|
#include "gfxMatrix.h" // for gfxMatrix
|
|
#include "ipc/AutoOpenSurface.h" // for AutoOpenSurface
|
|
#include "mozilla/Attributes.h" // for MOZ_DELETE, MOZ_STACK_CLASS
|
|
#include "mozilla/Maybe.h" // for Maybe
|
|
#include "nsAutoPtr.h" // for nsRefPtr
|
|
#include "nsDebug.h" // for NS_ASSERTION
|
|
#include "nsISupportsImpl.h" // for gfxContext::Release, etc
|
|
#include "nsRegion.h" // for nsIntRegion
|
|
#include "nsTraceRefcnt.h" // for MOZ_COUNT_CTOR, etc
|
|
|
|
namespace mozilla {
|
|
namespace layers {
|
|
|
|
class AutoMaskData;
|
|
class BasicContainerLayer;
|
|
class Layer;
|
|
|
|
class AutoSetOperator {
|
|
public:
|
|
AutoSetOperator(gfxContext* aContext, gfxContext::GraphicsOperator aOperator) {
|
|
if (aOperator != gfxContext::OPERATOR_OVER) {
|
|
aContext->SetOperator(aOperator);
|
|
mContext = aContext;
|
|
}
|
|
}
|
|
~AutoSetOperator() {
|
|
if (mContext) {
|
|
mContext->SetOperator(gfxContext::OPERATOR_OVER);
|
|
}
|
|
}
|
|
private:
|
|
nsRefPtr<gfxContext> mContext;
|
|
};
|
|
|
|
class BasicReadbackLayer : public ReadbackLayer,
|
|
public BasicImplData
|
|
{
|
|
public:
|
|
BasicReadbackLayer(BasicLayerManager* aLayerManager) :
|
|
ReadbackLayer(aLayerManager,
|
|
static_cast<BasicImplData*>(MOZ_THIS_IN_INITIALIZER_LIST()))
|
|
{
|
|
MOZ_COUNT_CTOR(BasicReadbackLayer);
|
|
}
|
|
virtual ~BasicReadbackLayer()
|
|
{
|
|
MOZ_COUNT_DTOR(BasicReadbackLayer);
|
|
}
|
|
|
|
virtual void SetVisibleRegion(const nsIntRegion& aRegion)
|
|
{
|
|
NS_ASSERTION(BasicManager()->InConstruction(),
|
|
"Can only set properties in construction phase");
|
|
ReadbackLayer::SetVisibleRegion(aRegion);
|
|
}
|
|
|
|
protected:
|
|
BasicLayerManager* BasicManager()
|
|
{
|
|
return static_cast<BasicLayerManager*>(mManager);
|
|
}
|
|
};
|
|
|
|
/*
|
|
* Extract a mask surface for a mask layer
|
|
* Returns true and through outparams a surface for the mask layer if
|
|
* a mask layer is present and has a valid surface and transform;
|
|
* false otherwise.
|
|
* The transform for the layer will be put in aMaskData
|
|
*/
|
|
bool
|
|
GetMaskData(Layer* aMaskLayer, AutoMaskData* aMaskData);
|
|
|
|
// Paint the current source to a context using a mask, if present
|
|
void
|
|
PaintWithMask(gfxContext* aContext, float aOpacity, Layer* aMaskLayer);
|
|
|
|
// Fill the current path with the current source, using a
|
|
// mask and opacity, if present
|
|
void
|
|
FillWithMask(gfxContext* aContext, float aOpacity, Layer* aMaskLayer);
|
|
|
|
BasicImplData*
|
|
ToData(Layer* aLayer);
|
|
|
|
}
|
|
}
|
|
|
|
#endif
|