gecko/gfx/layers/client/ClientThebesLayer.h

109 lines
2.7 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_CLIENTTHEBESLAYER_H
#define GFX_CLIENTTHEBESLAYER_H
#include "ClientLayerManager.h"
#include "ThebesLayerBuffer.h"
#include "mozilla/layers/ContentClient.h"
namespace mozilla {
namespace layers {
class ClientThebesLayer : public ThebesLayer,
public ClientLayer {
public:
typedef ThebesLayerBuffer::PaintState PaintState;
typedef ThebesLayerBuffer::ContentType ContentType;
ClientThebesLayer(ClientLayerManager* aLayerManager) :
ThebesLayer(aLayerManager, static_cast<ClientLayer*>(this)),
mContentClient(nullptr)
{
MOZ_COUNT_CTOR(ClientThebesLayer);
}
virtual ~ClientThebesLayer()
{
if (mContentClient) {
mContentClient->Detach();
mContentClient = nullptr;
}
MOZ_COUNT_DTOR(ClientThebesLayer);
}
virtual void SetVisibleRegion(const nsIntRegion& aRegion)
{
NS_ASSERTION(ClientManager()->InConstruction(),
"Can only set properties in construction phase");
ThebesLayer::SetVisibleRegion(aRegion);
}
virtual void InvalidateRegion(const nsIntRegion& aRegion)
{
NS_ASSERTION(ClientManager()->InConstruction(),
"Can only set properties in construction phase");
mInvalidRegion.Or(mInvalidRegion, aRegion);
mInvalidRegion.SimplifyOutward(10);
mValidRegion.Sub(mValidRegion, mInvalidRegion);
}
virtual void RenderLayer();
virtual void ClearCachedResources()
{
if (mContentClient) {
mContentClient->Clear();
}
mValidRegion.SetEmpty();
DestroyBackBuffer();
}
virtual void FillSpecificAttributes(SpecificLayerAttributes& aAttrs)
{
aAttrs = ThebesLayerAttributes(GetValidRegion());
}
ClientLayerManager* ClientManager()
{
return static_cast<ClientLayerManager*>(mManager);
}
virtual Layer* AsLayer() { return this; }
virtual ShadowableLayer* AsShadowableLayer() { return this; }
virtual CompositableClient* GetCompositableClient() MOZ_OVERRIDE
{
return mContentClient;
}
virtual void Disconnect()
{
mContentClient = nullptr;
ClientLayer::Disconnect();
}
protected:
void
PaintBuffer(gfxContext* aContext,
const nsIntRegion& aRegionToDraw,
const nsIntRegion& aExtendedRegionToDraw,
const nsIntRegion& aRegionToInvalidate,
bool aDidSelfCopy);
void PaintThebes();
void DestroyBackBuffer()
{
mContentClient = nullptr;
}
RefPtr<ContentClient> mContentClient;
};
}
}
#endif