1 #ifndef __DALI_INTERNAL_LAYER_H__
2 #define __DALI_INTERNAL_LAYER_H__
5 // Copyright (c) 2014 Samsung Electronics Co., Ltd.
7 // Licensed under the Flora License, Version 1.0 (the License);
8 // you may not use this file except in compliance with the License.
9 // You may obtain a copy of the License at
11 // http://floralicense.org/license/
13 // Unless required by applicable law or agreed to in writing, software
14 // distributed under the License is distributed on an AS IS BASIS,
15 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 // See the License for the specific language governing permissions and
17 // limitations under the License.
21 #include <dali/public-api/actors/layer.h>
22 #include <dali/internal/event/actors/actor-impl.h>
23 #include <dali/internal/event/actors/actor-declarations.h>
24 #include <dali/internal/event/images/frame-buffer-image-impl.h>
40 typedef Dali::ClippingBox ClippingBox;
42 class Layer : public Actor
47 * @copydoc Dali::Layer::ZValue(const Vector3&, float)
49 static float ZValue(const Vector3& position, float sortModifier)
51 // inlined so we avoid a function call when sorting renderers
52 return -position.z + sortModifier;
57 * @return A smart-pointer to the newly allocated Layer.
59 static LayerPtr New();
62 * Create a new root layer; this is typically owned by the stage.
63 * @param[in] stage The owning stage.
64 * @param[in] layerList The layer will be added to this ordered list.
65 * @param[in] manager The update manager to install a root node with.
66 * @param[in] systemLevel True if using the SystemOverlay API; see Integration::GetSystemOverlay() for more details.
67 * @return A smart-pointer to the newly allocated Actor.
69 static LayerPtr NewRoot( Stage& stage, LayerList& layerList, SceneGraph::UpdateManager& manager, bool systemLevel );
72 * @copydoc Dali::Internal::Actor::OnInitialize
77 * Query the current depth of the layer
79 unsigned int GetDepth() const;
82 * @copydoc Dali::Layer::Raise
87 * @copydoc Dali::Layer::Lower
92 * @copydoc Dali::Layer::RaiseAbove
94 void RaiseAbove( const Internal::Layer& target );
97 * @copydoc Dali::Layer::LowerBelow
99 void LowerBelow( const Internal::Layer& target );
102 * @copydoc Dali::Layer::RaiseToTop
107 * @copydoc Dali::Layer::LowerToBottom
109 void LowerToBottom();
112 * @copydoc Dali::Layer::MoveAbove
114 void MoveAbove( const Internal::Layer& target );
117 * @copydoc Dali::Layer::MoveAbove
119 void MoveBelow( const Internal::Layer& target );
122 * @copydoc Dali::Layer::SetClipping()
124 void SetClipping(bool enabled);
127 * @copydoc Dali::Layer::IsClipping()
129 bool IsClipping() const
131 return mIsClipping; // Actor-side has most up-to-date value
135 * @copydoc Dali::Layer::SetClippingBox()
137 void SetClippingBox(int x, int y, int width, int height);
140 * @copydoc Dali::Layer::GetClippingBox()
142 const Dali::ClippingBox& GetClippingBox() const
144 return mClippingBox; // Actor-side has most up-to-date value
148 * @copydoc Dali::Layer::SetDepthTestDisabled()
150 void SetDepthTestDisabled( bool disable );
153 * @copydoc Dali::Layer::IsDepthTestDisabled()
155 bool IsDepthTestDisabled() const;
158 * @copydoc Dali::Layer::SetSortFunction()
160 void SetSortFunction(Dali::Layer::SortFunctionType function);
163 * Helper function to get the scene object.
164 * This should only be called by Stage
165 * @return the scene object for the layer.
167 const SceneGraph::Layer& GetSceneLayerOnStage() const;
170 * @copydoc Dali::Internal::Actor::DoAction()
172 static bool DoAction(BaseObject* object, const std::string& actionName, const std::vector<Property::Value>& attributes);
174 public: // Default property extensions from ProxyObject
176 * @copydoc Dali::Internal::ProxyObject::GetDefaultPropertyCount()
178 virtual unsigned int GetDefaultPropertyCount() const;
181 * @copydoc Dali::Internal::ProxyObject::GetDefaultPropertyIndices()
183 virtual void GetDefaultPropertyIndices( Property::IndexContainer& indices ) const;
186 * @copydoc Dali::Internal::ProxyObject::GetDefaultPropertyName()
188 virtual const std::string& GetDefaultPropertyName(Property::Index index) const;
191 * @copydoc Dali::Internal::ProxyObject::GetDefaultPropertyIndex()
193 virtual Property::Index GetDefaultPropertyIndex(const std::string& name) const;
196 * @copydoc Dali::Internal::ProxyObject::IsDefaultPropertyWritable()
198 virtual bool IsDefaultPropertyWritable(Property::Index index) const;
201 * @copydoc Dali::Internal::ProxyObject::IsDefaultPropertyAnimatable()
203 virtual bool IsDefaultPropertyAnimatable(Property::Index index) const;
206 * @copydoc Dali::Internal::ProxyObject::GetDefaultPropertyType()
208 virtual Property::Type GetDefaultPropertyType(Property::Index index) const;
211 * @copydoc Dali::Internal::ProxyObject::SetDefaultProperty()
213 virtual void SetDefaultProperty(Property::Index index, const Property::Value& propertyValue);
216 * @copydoc Dali::Internal::ProxyObject::GetDefaultProperty()
218 virtual Property::Value GetDefaultProperty( Property::Index index ) const;
223 * Construct a new layer.
224 * @param[in] type Either Actor::LAYER or Actor::ROOT_LAYER if this is the root actor.
226 Layer( Actor::DerivedType type );
229 * A reference counted object may only be deleted by calling Unreference()
233 private: // From Actor
236 * From Actor; create a node to represent the layer in the scene-graph.
237 * @return A newly allocated layer node.
239 virtual SceneGraph::Node* CreateNode() const;
244 virtual void OnStageConnectionInternal();
249 virtual void OnStageDisconnectionInternal();
253 LayerList* mLayerList; ///< Only valid when layer is on-stage
255 // These properties not animatable; the actor side has the most up-to-date values
256 FrameBufferImagePtr mFrameBufferImage; ///< Ticket for offscreen render target
257 ClippingBox mClippingBox; ///< The clipping box, in window coordinates
258 Dali::Layer::SortFunctionType mSortFunction; ///< Used to sort semi-transparent geometry
260 bool mIsClipping:1; ///< True when clipping is enabled
261 bool mDepthTestDisabled:1; ///< Whether depth test is disabled.
263 static bool mFirstInstance;
264 static DefaultPropertyLookup* mDefaultLayerPropertyLookup; ///< Default properties
267 } // namespace Internal
269 // Helpers for public-api forwarding methods
271 inline Internal::Layer& GetImplementation(Dali::Layer& layer)
273 DALI_ASSERT_ALWAYS(layer && "Layer handle is empty");
275 BaseObject& handle = layer.GetBaseObject();
277 return static_cast<Internal::Layer&>(handle);
280 inline const Internal::Layer& GetImplementation(const Dali::Layer& layer)
282 DALI_ASSERT_ALWAYS(layer && "Layer handle is empty");
284 const BaseObject& handle = layer.GetBaseObject();
286 return static_cast<const Internal::Layer&>(handle);
292 #endif //__DALI_INTERNAL_LAYER_H__