gecko/gfx/layers/client/ClientContainerLayer.h

179 lines
5.8 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_CLIENTCONTAINERLAYER_H
#define GFX_CLIENTCONTAINERLAYER_H
#include <stdint.h> // for uint32_t
#include "ClientLayerManager.h" // for ClientLayerManager, etc
#include "Layers.h" // for Layer, ContainerLayer, etc
#include "gfx3DMatrix.h" // for gfx3DMatrix
#include "gfxMatrix.h" // for gfxMatrix
#include "gfxPlatform.h" // for gfxPlatform
#include "nsDebug.h" // for NS_ASSERTION
#include "nsISupportsUtils.h" // for NS_ADDREF, NS_RELEASE
#include "nsRegion.h" // for nsIntRegion
#include "nsTArray.h" // for nsAutoTArray
#include "nsTraceRefcnt.h" // for MOZ_COUNT_CTOR, etc
namespace mozilla {
namespace layers {
class ShadowableLayer;
class ClientContainerLayer : public ContainerLayer,
public ClientLayer
{
public:
ClientContainerLayer(ClientLayerManager* aManager) :
ContainerLayer(aManager,
static_cast<ClientLayer*>(MOZ_THIS_IN_INITIALIZER_LIST()))
{
MOZ_COUNT_CTOR(ClientContainerLayer);
mSupportsComponentAlphaChildren = true;
}
virtual ~ClientContainerLayer()
{
while (mFirstChild) {
ContainerLayer::RemoveChild(mFirstChild);
}
MOZ_COUNT_DTOR(ClientContainerLayer);
}
virtual void RenderLayer()
{
if (GetMaskLayer()) {
ToClientLayer(GetMaskLayer())->RenderLayer();
}
// Setup mSupportsComponentAlphaChildren in the same way
// that ContainerLayerComposite will do.
if (UseIntermediateSurface()) {
if (GetEffectiveVisibleRegion().GetNumRects() != 1 ||
!(GetContentFlags() & Layer::CONTENT_OPAQUE))
{
const gfx3DMatrix& transform3D = GetEffectiveTransform();
gfxMatrix transform;
if (HasOpaqueAncestorLayer(this) &&
transform3D.Is2D(&transform) &&
!transform.HasNonIntegerTranslation()) {
SetSupportsComponentAlphaChildren(
gfxPlatform::ComponentAlphaEnabled());
}
}
} else {
SetSupportsComponentAlphaChildren(
(GetContentFlags() & Layer::CONTENT_OPAQUE) ||
(GetParent() && GetParent()->SupportsComponentAlphaChildren()));
}
nsAutoTArray<Layer*, 12> children;
SortChildrenBy3DZOrder(children);
for (uint32_t i = 0; i < children.Length(); i++) {
if (children.ElementAt(i)->GetEffectiveVisibleRegion().IsEmpty()) {
continue;
}
ToClientLayer(children.ElementAt(i))->RenderLayer();
}
}
virtual void SetVisibleRegion(const nsIntRegion& aRegion)
{
NS_ASSERTION(ClientManager()->InConstruction(),
"Can only set properties in construction phase");
ContainerLayer::SetVisibleRegion(aRegion);
}
virtual void InsertAfter(Layer* aChild, Layer* aAfter) MOZ_OVERRIDE
{
NS_ASSERTION(ClientManager()->InConstruction(),
"Can only set properties in construction phase");
ClientManager()->AsShadowForwarder()->InsertAfter(ClientManager()->Hold(this),
ClientManager()->Hold(aChild),
aAfter ? ClientManager()->Hold(aAfter) : nullptr);
ContainerLayer::InsertAfter(aChild, aAfter);
}
virtual void RemoveChild(Layer* aChild) MOZ_OVERRIDE
{
NS_ASSERTION(ClientManager()->InConstruction(),
"Can only set properties in construction phase");
ClientManager()->AsShadowForwarder()->RemoveChild(ClientManager()->Hold(this),
ClientManager()->Hold(aChild));
ContainerLayer::RemoveChild(aChild);
}
virtual void RepositionChild(Layer* aChild, Layer* aAfter) MOZ_OVERRIDE
{
NS_ASSERTION(ClientManager()->InConstruction(),
"Can only set properties in construction phase");
ClientManager()->AsShadowForwarder()->RepositionChild(ClientManager()->Hold(this),
ClientManager()->Hold(aChild),
aAfter ? ClientManager()->Hold(aAfter) : nullptr);
ContainerLayer::RepositionChild(aChild, aAfter);
}
virtual Layer* AsLayer() { return this; }
virtual ShadowableLayer* AsShadowableLayer() { return this; }
virtual void ComputeEffectiveTransforms(const gfx3DMatrix& aTransformToSurface)
{
DefaultComputeEffectiveTransforms(aTransformToSurface);
}
void ForceIntermediateSurface() { mUseIntermediateSurface = true; }
void SetSupportsComponentAlphaChildren(bool aSupports) { mSupportsComponentAlphaChildren = aSupports; }
protected:
ClientLayerManager* ClientManager()
{
return static_cast<ClientLayerManager*>(mManager);
}
};
class ClientRefLayer : public RefLayer,
public ClientLayer {
public:
ClientRefLayer(ClientLayerManager* aManager) :
RefLayer(aManager,
static_cast<ClientLayer*>(MOZ_THIS_IN_INITIALIZER_LIST()))
{
MOZ_COUNT_CTOR(ClientRefLayer);
}
virtual ~ClientRefLayer()
{
MOZ_COUNT_DTOR(ClientRefLayer);
}
virtual Layer* AsLayer() { return this; }
virtual ShadowableLayer* AsShadowableLayer() { return this; }
virtual void Disconnect()
{
ClientLayer::Disconnect();
}
virtual void RenderLayer() { }
virtual void ComputeEffectiveTransforms(const gfx3DMatrix& aTransformToSurface)
{
DefaultComputeEffectiveTransforms(aTransformToSurface);
}
private:
ClientLayerManager* ClientManager()
{
return static_cast<ClientLayerManager*>(mManager);
}
};
}
}
#endif