1 #ifndef DALI_INTEGRATION_INTERNAL_SCENEHOLDER_H
2 #define DALI_INTEGRATION_INTERNAL_SCENEHOLDER_H
5 * Copyright (c) 2020 Samsung Electronics Co., Ltd.
7 * Licensed under the Apache License, Version 2.0 (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://www.apache.org/licenses/LICENSE-2.0
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.
25 #include <dali/public-api/object/base-object.h>
26 #include <dali/public-api/common/intrusive-ptr.h>
27 #include <dali/public-api/math/uint-16-pair.h>
28 #include <dali/integration-api/scene.h>
29 #include <dali/integration-api/events/key-event-integ.h>
30 #include <dali/integration-api/events/point.h>
31 #include <dali/integration-api/events/touch-event-combiner.h>
34 #include <dali/integration-api/adaptor-framework/render-surface-interface.h>
35 #include <dali/integration-api/adaptor-framework/scene-holder.h>
66 using SceneHolderPtr = IntrusivePtr< SceneHolder >;
69 * @brief SceneHolder creates a Scene for rendering.
71 class DALI_ADAPTOR_API SceneHolder : public BaseObject
77 * @copydoc Dali::Integration::SceneHolder::Add
79 void Add( Dali::Actor actor );
82 * @copydoc Dali::Integration::SceneHolder::Remove
84 void Remove( Dali::Actor actor );
87 * @copydoc Dali::Integration::SceneHolder::GetRootLayer
89 Dali::Layer GetRootLayer() const;
92 * @brief Gets the window name.
93 * @return The name of the window
95 std::string GetName() const;
98 * @brief Retrieve the unique ID of the window.
101 uint32_t GetId() const;
104 * @brief Retrieve the Scene.
107 Dali::Integration::Scene GetScene();
110 * @brief Retrieves the DPI of this sceneholder.
113 Uint16Pair GetDpi() const;
116 * @brief Set the render surface
117 * @param[in] surface The render surface
119 void SetSurface( Dali::RenderSurfaceInterface* surface );
122 * @brief Called when the surface set is resized.
124 void SurfaceResized();
127 * @brief Get the render surface
128 * @return The render surface
130 Dali::RenderSurfaceInterface* GetSurface() const;
133 * @brief Set the adaptor to the scene holder
134 * @param[in] adaptor An initialized adaptor
136 void SetAdaptor( Dali::Adaptor& adaptor );
139 * @copydoc Dali::Integration::SceneHolder::SetBackgroundColor
141 void SetBackgroundColor( const Dali::Vector4& color );
144 * @copydoc Dali::Integration::SceneHolder::GetBackgroundColor
146 Vector4 GetBackgroundColor() const;
149 * @brief Pause the rendering of the scene holder.
154 * @brief Resume the rendering of the scene holder (from pause).
159 * @brief Checks whether this scene holder is being deleted in the event thread.
161 * @return true if this scene holder is being deleted in the event thread, or false if not.
163 bool IsBeingDeleted() const { return mIsBeingDeleted; }
166 * @copydoc Dali::Integration::SceneHolder::FeedTouchPoint
168 void FeedTouchPoint( Dali::Integration::Point& point, int timeStamp );
171 * @copydoc Dali::Integration::SceneHolder::FeedWheelEvent
173 void FeedWheelEvent( Dali::Integration::WheelEvent& wheelEvent );
176 * @copydoc Dali::Integration::SceneHolder::FeedKeyEvent
178 void FeedKeyEvent( Dali::Integration::KeyEvent& keyEvent );
181 * @brief Adds a callback that is called when the frame rendering is done by the graphics driver.
183 * @param[in] callback The function to call
184 * @param[in] frameId The Id to specify the frame. It will be passed when the callback is called.
186 * @note A callback of the following type may be used:
188 * void MyFunction( int frameId );
190 * This callback will be deleted once it is called.
192 * @note Ownership of the callback is passed onto this class.
194 void AddFrameRenderedCallback( std::unique_ptr< CallbackBase > callback, int32_t frameId );
197 * @brief Adds a callback that is called when the frame rendering is done by the graphics driver.
199 * @param[in] callback The function to call
200 * @param[in] frameId The Id to specify the frame. It will be passed when the callback is called.
202 * @note A callback of the following type may be used:
204 * void MyFunction( int frameId );
206 * This callback will be deleted once it is called.
208 * @note Ownership of the callback is passed onto this class.
210 void AddFramePresentedCallback( std::unique_ptr< CallbackBase > callback, int32_t frameId );
213 * @copydoc Dali::Integration::SceneHolder::Get()
215 static Dali::Integration::SceneHolder Get( Dali::Actor actor );
218 * @copydoc Dali::Integration::SceneHolder::KeyEventSignal()
220 Dali::Integration::SceneHolder::KeyEventSignalType& KeyEventSignal() { return mScene.KeyEventSignal(); }
223 * @copydoc Dali::Integration::SceneHolder::KeyEventGeneratedSignal()
225 Dali::Integration::SceneHolder::KeyEventGeneratedSignalType& KeyEventGeneratedSignal() { return mScene.KeyEventGeneratedSignal(); }
228 * @copydoc Dali::Integration::SceneHolder::TouchedSignal()
230 Dali::Integration::SceneHolder::TouchEventSignalType& TouchedSignal() { return mScene.TouchedSignal(); }
233 * @copydoc Dali::Integration::SceneHolder::WheelEventSignal()
235 Dali::Integration::SceneHolder::WheelEventSignalType& WheelEventSignal() { return mScene.WheelEventSignal(); }
237 public: // The following methods can be overridden if required
240 * @brief Returns whether the Scene is visible or not.
241 * @return True if the Scene is visible, false otherwise.
243 virtual bool IsVisible() const;
245 public: // The following methods must be overridden
248 * @copydoc Dali::Integration::SceneHolder::GetNativeHandle
250 virtual Dali::Any GetNativeHandle() const = 0;
258 SceneHolder(const SceneHolder&) = delete;
261 SceneHolder& operator=(const SceneHolder& rhs) = delete;
266 ~SceneHolder() override;
268 private: // The following methods can be overridden if required
271 * @brief Called by the base class to inform deriving classes that the adaptor has been set.
272 * @param[in] adaptor The adaptor
274 virtual void OnAdaptorSet( Dali::Adaptor& adaptor ) {};
277 * @brief Called by the base class to inform deriving classes that a new surface has been set.
278 * @param[in] surface The new render surface
280 virtual void OnSurfaceSet( Dali::RenderSurfaceInterface* surface ) {};
283 * @brief Called by the base class to inform deriving classes that we are being paused.
285 virtual void OnPause() {};
288 * @brief Called by the base class to inform deriving classes that we are resuming from a paused state.
290 virtual void OnResume() {};
293 * Recalculate the touch position if required
294 * @param[in,out] point The touch point
296 virtual void RecalculateTouchPosition( Integration::Point& point ) {};
301 * Resets the event handling.
306 * Initializes the DPI for this object.
308 void InitializeDpi();
312 static uint32_t mSceneHolderCounter; ///< A counter to track the SceneHolder creation
314 class SceneHolderLifeCycleObserver;
315 std::unique_ptr< SceneHolderLifeCycleObserver > mLifeCycleObserver; ///< The adaptor life cycle observer
319 uint32_t mId; ///< A unique ID to identify the SceneHolder starting from 0
320 Dali::Integration::Scene mScene; ///< The Scene
321 std::string mName; ///< The name of the SceneHolder
323 std::unique_ptr< Dali::RenderSurfaceInterface > mSurface; ///< The window rendering surface
324 Adaptor* mAdaptor; ///< The adaptor
326 Dali::Integration::TouchEventCombiner mCombiner; ///< Combines multi-touch events.
329 Uint16Pair mDpi; ///< The DPI for this SceneHolder.
331 std::atomic<bool> mIsBeingDeleted; ///< This is set only from the event thread and read only from the render thread
333 bool mAdaptorStarted:1; ///< Whether the adaptor has started or not
334 bool mVisible:1; ///< Whether the scene is visible or not
341 // Get impl of handle
342 inline Internal::Adaptor::SceneHolder& GetImplementation( Dali::Integration::SceneHolder& sceneHolder )
344 DALI_ASSERT_ALWAYS( sceneHolder && "SceneHolder handle is empty" );
345 Dali::RefObject& object = sceneHolder.GetBaseObject();
346 return static_cast<Internal::Adaptor::SceneHolder&>( object );
349 inline const Internal::Adaptor::SceneHolder& GetImplementation( const Dali::Integration::SceneHolder& sceneHolder )
351 DALI_ASSERT_ALWAYS( sceneHolder && "SceneHolder handle is empty" );
352 const Dali::RefObject& object = sceneHolder.GetBaseObject();
353 return static_cast<const Internal::Adaptor::SceneHolder&>( object );
358 #endif // DALI_INTEGRATION_INTERNAL_SCENEHOLDER_H