1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/layers/basic/BasicContainerLayer.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,97 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef GFX_BASICCONTAINERLAYER_H
1.10 +#define GFX_BASICCONTAINERLAYER_H
1.11 +
1.12 +#include "BasicImplData.h" // for BasicImplData
1.13 +#include "BasicLayers.h" // for BasicLayerManager
1.14 +#include "Layers.h" // for Layer, ContainerLayer
1.15 +#include "nsDebug.h" // for NS_ASSERTION
1.16 +#include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR
1.17 +#include "nsISupportsUtils.h" // for NS_ADDREF, NS_RELEASE
1.18 +struct nsIntRect;
1.19 +
1.20 +namespace mozilla {
1.21 +namespace layers {
1.22 +
1.23 +class BasicContainerLayer : public ContainerLayer, public BasicImplData {
1.24 +public:
1.25 + BasicContainerLayer(BasicLayerManager* aManager) :
1.26 + ContainerLayer(aManager,
1.27 + static_cast<BasicImplData*>(MOZ_THIS_IN_INITIALIZER_LIST()))
1.28 + {
1.29 + MOZ_COUNT_CTOR(BasicContainerLayer);
1.30 + mSupportsComponentAlphaChildren = true;
1.31 + }
1.32 + virtual ~BasicContainerLayer();
1.33 +
1.34 + virtual void SetVisibleRegion(const nsIntRegion& aRegion)
1.35 + {
1.36 + NS_ASSERTION(BasicManager()->InConstruction(),
1.37 + "Can only set properties in construction phase");
1.38 + ContainerLayer::SetVisibleRegion(aRegion);
1.39 + }
1.40 + virtual bool InsertAfter(Layer* aChild, Layer* aAfter)
1.41 + {
1.42 + if (!BasicManager()->InConstruction()) {
1.43 + NS_ERROR("Can only set properties in construction phase");
1.44 + return false;
1.45 + }
1.46 + return ContainerLayer::InsertAfter(aChild, aAfter);
1.47 + }
1.48 +
1.49 + virtual bool RemoveChild(Layer* aChild)
1.50 + {
1.51 + if (!BasicManager()->InConstruction()) {
1.52 + NS_ERROR("Can only set properties in construction phase");
1.53 + return false;
1.54 + }
1.55 + return ContainerLayer::RemoveChild(aChild);
1.56 + }
1.57 +
1.58 + virtual bool RepositionChild(Layer* aChild, Layer* aAfter)
1.59 + {
1.60 + if (!BasicManager()->InConstruction()) {
1.61 + NS_ERROR("Can only set properties in construction phase");
1.62 + return false;
1.63 + }
1.64 + return ContainerLayer::RepositionChild(aChild, aAfter);
1.65 + }
1.66 +
1.67 + virtual void ComputeEffectiveTransforms(const gfx::Matrix4x4& aTransformToSurface);
1.68 +
1.69 + /**
1.70 + * Returns true when:
1.71 + * a) no (non-hidden) childrens' visible areas overlap in
1.72 + * (aInRect intersected with this layer's visible region).
1.73 + * b) the (non-hidden) childrens' visible areas cover
1.74 + * (aInRect intersected with this layer's visible region).
1.75 + * c) this layer and all (non-hidden) children have transforms that are translations
1.76 + * by integers.
1.77 + * aInRect is in the root coordinate system.
1.78 + * Child layers with opacity do not contribute to the covered area in check b).
1.79 + * This method can be conservative; it's OK to return false under any
1.80 + * circumstances.
1.81 + */
1.82 + bool ChildrenPartitionVisibleRegion(const nsIntRect& aInRect);
1.83 +
1.84 + void ForceIntermediateSurface() { mUseIntermediateSurface = true; }
1.85 +
1.86 + void SetSupportsComponentAlphaChildren(bool aSupports) { mSupportsComponentAlphaChildren = aSupports; }
1.87 +
1.88 + virtual void Validate(LayerManager::DrawThebesLayerCallback aCallback,
1.89 + void* aCallbackData) MOZ_OVERRIDE;
1.90 +
1.91 +protected:
1.92 + BasicLayerManager* BasicManager()
1.93 + {
1.94 + return static_cast<BasicLayerManager*>(mManager);
1.95 + }
1.96 +};
1.97 +}
1.98 +}
1.99 +
1.100 +#endif
