gfx/layers/basic/BasicContainerLayer.h@6474c204b198 (annotated)
gfx/layers/basic/BasicContainerLayer.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- |
| michael@0 | 2 | * This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #ifndef GFX_BASICCONTAINERLAYER_H |
| michael@0 | 7 | #define GFX_BASICCONTAINERLAYER_H |
| michael@0 | 8 | |
| michael@0 | 9 | #include "BasicImplData.h" // for BasicImplData |
| michael@0 | 10 | #include "BasicLayers.h" // for BasicLayerManager |
| michael@0 | 11 | #include "Layers.h" // for Layer, ContainerLayer |
| michael@0 | 12 | #include "nsDebug.h" // for NS_ASSERTION |
| michael@0 | 13 | #include "nsISupportsImpl.h" // for MOZ_COUNT_CTOR |
| michael@0 | 14 | #include "nsISupportsUtils.h" // for NS_ADDREF, NS_RELEASE |
| michael@0 | 15 | struct nsIntRect; |
| michael@0 | 16 | |
| michael@0 | 17 | namespace mozilla { |
| michael@0 | 18 | namespace layers { |
| michael@0 | 19 | |
| michael@0 | 20 | class BasicContainerLayer : public ContainerLayer, public BasicImplData { |
| michael@0 | 21 | public: |
| michael@0 | 22 | BasicContainerLayer(BasicLayerManager* aManager) : |
| michael@0 | 23 | ContainerLayer(aManager, |
| michael@0 | 24 | static_cast<BasicImplData*>(MOZ_THIS_IN_INITIALIZER_LIST())) |
| michael@0 | 25 | { |
| michael@0 | 26 | MOZ_COUNT_CTOR(BasicContainerLayer); |
| michael@0 | 27 | mSupportsComponentAlphaChildren = true; |
| michael@0 | 28 | } |
| michael@0 | 29 | virtual ~BasicContainerLayer(); |
| michael@0 | 30 | |
| michael@0 | 31 | virtual void SetVisibleRegion(const nsIntRegion& aRegion) |
| michael@0 | 32 | { |
| michael@0 | 33 | NS_ASSERTION(BasicManager()->InConstruction(), |
| michael@0 | 34 | "Can only set properties in construction phase"); |
| michael@0 | 35 | ContainerLayer::SetVisibleRegion(aRegion); |
| michael@0 | 36 | } |
| michael@0 | 37 | virtual bool InsertAfter(Layer* aChild, Layer* aAfter) |
| michael@0 | 38 | { |
| michael@0 | 39 | if (!BasicManager()->InConstruction()) { |
| michael@0 | 40 | NS_ERROR("Can only set properties in construction phase"); |
| michael@0 | 41 | return false; |
| michael@0 | 42 | } |
| michael@0 | 43 | return ContainerLayer::InsertAfter(aChild, aAfter); |
| michael@0 | 44 | } |
| michael@0 | 45 | |
| michael@0 | 46 | virtual bool RemoveChild(Layer* aChild) |
| michael@0 | 47 | { |
| michael@0 | 48 | if (!BasicManager()->InConstruction()) { |
| michael@0 | 49 | NS_ERROR("Can only set properties in construction phase"); |
| michael@0 | 50 | return false; |
| michael@0 | 51 | } |
| michael@0 | 52 | return ContainerLayer::RemoveChild(aChild); |
| michael@0 | 53 | } |
| michael@0 | 54 | |
| michael@0 | 55 | virtual bool RepositionChild(Layer* aChild, Layer* aAfter) |
| michael@0 | 56 | { |
| michael@0 | 57 | if (!BasicManager()->InConstruction()) { |
| michael@0 | 58 | NS_ERROR("Can only set properties in construction phase"); |
| michael@0 | 59 | return false; |
| michael@0 | 60 | } |
| michael@0 | 61 | return ContainerLayer::RepositionChild(aChild, aAfter); |
| michael@0 | 62 | } |
| michael@0 | 63 | |
| michael@0 | 64 | virtual void ComputeEffectiveTransforms(const gfx::Matrix4x4& aTransformToSurface); |
| michael@0 | 65 | |
| michael@0 | 66 | /** |
| michael@0 | 67 | * Returns true when: |
| michael@0 | 68 | * a) no (non-hidden) childrens' visible areas overlap in |
| michael@0 | 69 | * (aInRect intersected with this layer's visible region). |
| michael@0 | 70 | * b) the (non-hidden) childrens' visible areas cover |
| michael@0 | 71 | * (aInRect intersected with this layer's visible region). |
| michael@0 | 72 | * c) this layer and all (non-hidden) children have transforms that are translations |
| michael@0 | 73 | * by integers. |
| michael@0 | 74 | * aInRect is in the root coordinate system. |
| michael@0 | 75 | * Child layers with opacity do not contribute to the covered area in check b). |
| michael@0 | 76 | * This method can be conservative; it's OK to return false under any |
| michael@0 | 77 | * circumstances. |
| michael@0 | 78 | */ |
| michael@0 | 79 | bool ChildrenPartitionVisibleRegion(const nsIntRect& aInRect); |
| michael@0 | 80 | |
| michael@0 | 81 | void ForceIntermediateSurface() { mUseIntermediateSurface = true; } |
| michael@0 | 82 | |
| michael@0 | 83 | void SetSupportsComponentAlphaChildren(bool aSupports) { mSupportsComponentAlphaChildren = aSupports; } |
| michael@0 | 84 | |
| michael@0 | 85 | virtual void Validate(LayerManager::DrawThebesLayerCallback aCallback, |
| michael@0 | 86 | void* aCallbackData) MOZ_OVERRIDE; |
| michael@0 | 87 | |
| michael@0 | 88 | protected: |
| michael@0 | 89 | BasicLayerManager* BasicManager() |
| michael@0 | 90 | { |
| michael@0 | 91 | return static_cast<BasicLayerManager*>(mManager); |
| michael@0 | 92 | } |
| michael@0 | 93 | }; |
| michael@0 | 94 | } |
| michael@0 | 95 | } |
| michael@0 | 96 | |
| michael@0 | 97 | #endif |
