1 #ifndef DALI_INTEGRATION_INTERNAL_SCENEHOLDER_H
2 #define DALI_INTEGRATION_INTERNAL_SCENEHOLDER_H
5 * Copyright (c) 2021 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.
22 #include <dali/graphics-api/graphics-controller.h>
23 #include <dali/integration-api/events/key-event-integ.h>
24 #include <dali/integration-api/events/point.h>
25 #include <dali/integration-api/events/touch-event-combiner.h>
26 #include <dali/integration-api/scene.h>
27 #include <dali/public-api/common/intrusive-ptr.h>
28 #include <dali/public-api/math/uint-16-pair.h>
29 #include <dali/public-api/object/base-object.h>
35 #include <dali/integration-api/adaptor-framework/render-surface-interface.h>
36 #include <dali/integration-api/adaptor-framework/scene-holder.h>
55 } // namespace Integration
63 using SceneHolderPtr = IntrusivePtr<SceneHolder>;
66 * @brief SceneHolder creates a Scene for rendering.
68 class DALI_ADAPTOR_API SceneHolder : public BaseObject
72 * @copydoc Dali::Integration::SceneHolder::Add
74 void Add(Dali::Actor actor);
77 * @copydoc Dali::Integration::SceneHolder::Remove
79 void Remove(Dali::Actor actor);
82 * @copydoc Dali::Integration::SceneHolder::GetRootLayer
84 Dali::Layer GetRootLayer() const;
87 * @brief Gets the window name.
88 * @return The name of the window
90 std::string GetName() const;
93 * @brief Retrieve the unique ID of the window.
96 uint32_t GetId() const;
99 * @brief Retrieve the Scene.
102 Dali::Integration::Scene GetScene();
105 * @brief Retrieves the DPI of this sceneholder.
108 Uint16Pair GetDpi() const;
111 * @brief Set the render surface
112 * @param[in] surface The render surface
114 void SetSurface(Dali::RenderSurfaceInterface* surface);
117 * @brief Called when the surface set is resized.
119 void SurfaceResized();
122 * @brief Get the render surface
123 * @return The render surface
125 Dali::RenderSurfaceInterface* GetSurface() const;
128 * @brief Set the adaptor to the scene holder
129 * @param[in] adaptor An initialized adaptor
131 void SetAdaptor(Dali::Adaptor& adaptor);
134 * @copydoc Dali::Integration::SceneHolder::SetBackgroundColor
136 void SetBackgroundColor(const Dali::Vector4& color);
139 * @copydoc Dali::Integration::SceneHolder::GetBackgroundColor
141 Vector4 GetBackgroundColor() const;
144 * @brief Pause the rendering of the scene holder.
149 * @brief Resume the rendering of the scene holder (from pause).
154 * @brief Checks whether this scene holder is being deleted in the event thread.
156 * @return true if this scene holder is being deleted in the event thread, or false if not.
158 bool IsBeingDeleted() const
160 return mIsBeingDeleted;
164 * @brief Informs the scene that the set surface has been rotated.
166 * @param[in] width The width of rotated surface
167 * @param[in] height The height of rotated surface
168 * @param[in] orientation The orientation of rotated surface
170 void SurfaceRotated(float width, float height, int orientation);
173 * @copydoc Dali::Integration::SceneHolder::FeedTouchPoint
175 void FeedTouchPoint(Dali::Integration::Point& point, int timeStamp);
178 * @copydoc Dali::Integration::SceneHolder::FeedWheelEvent
180 void FeedWheelEvent(Dali::Integration::WheelEvent& wheelEvent);
183 * @copydoc Dali::Integration::SceneHolder::FeedKeyEvent
185 void FeedKeyEvent(Dali::Integration::KeyEvent& keyEvent);
188 * @brief Adds a callback that is called when the frame rendering is done by the graphics driver.
190 * @param[in] callback The function to call
191 * @param[in] frameId The Id to specify the frame. It will be passed when the callback is called.
193 * @note A callback of the following type may be used:
195 * void MyFunction( int frameId );
197 * This callback will be deleted once it is called.
199 * @note Ownership of the callback is passed onto this class.
201 void AddFrameRenderedCallback(std::unique_ptr<CallbackBase> callback, int32_t frameId);
204 * @brief Adds a callback that is called when the frame rendering is done by the graphics driver.
206 * @param[in] callback The function to call
207 * @param[in] frameId The Id to specify the frame. It will be passed when the callback is called.
209 * @note A callback of the following type may be used:
211 * void MyFunction( int frameId );
213 * This callback will be deleted once it is called.
215 * @note Ownership of the callback is passed onto this class.
217 void AddFramePresentedCallback(std::unique_ptr<CallbackBase> callback, int32_t frameId);
220 * @brief Creates the render target for the surface when the surface is created/resized/replaced.
222 void CreateRenderTarget();
225 * @copydoc Dali::Integration::SceneHolder::Get()
227 static Dali::Integration::SceneHolder Get(Dali::Actor actor);
230 * @copydoc Dali::Integration::SceneHolder::KeyEventSignal()
232 Dali::Integration::SceneHolder::KeyEventSignalType& KeyEventSignal()
234 return mScene.KeyEventSignal();
238 * @copydoc Dali::Integration::SceneHolder::KeyEventGeneratedSignal()
240 Dali::Integration::SceneHolder::KeyEventGeneratedSignalType& KeyEventGeneratedSignal()
242 return mScene.KeyEventGeneratedSignal();
246 * @copydoc Dali::Integration::SceneHolder::TouchedSignal()
248 Dali::Integration::SceneHolder::TouchEventSignalType& TouchedSignal()
250 return mScene.TouchedSignal();
254 * @copydoc Dali::Integration::SceneHolder::WheelEventSignal()
256 Dali::Integration::SceneHolder::WheelEventSignalType& WheelEventSignal()
258 return mScene.WheelEventSignal();
261 public: // The following methods can be overridden if required
263 * @brief Returns whether the Scene is visible or not.
264 * @return True if the Scene is visible, false otherwise.
266 virtual bool IsVisible() const;
268 public: // The following methods must be overridden
270 * @copydoc Dali::Integration::SceneHolder::GetNativeHandle
272 virtual Dali::Any GetNativeHandle() const = 0;
279 SceneHolder(const SceneHolder&) = delete;
282 SceneHolder& operator=(const SceneHolder& rhs) = delete;
287 ~SceneHolder() override;
289 private: // The following methods can be overridden if required
291 * @brief Called by the base class to inform deriving classes that the adaptor has been set.
292 * @param[in] adaptor The adaptor
294 virtual void OnAdaptorSet(Dali::Adaptor& adaptor){};
297 * @brief Called by the base class to inform deriving classes that a new surface has been set.
298 * @param[in] surface The new render surface
300 virtual void OnSurfaceSet(Dali::RenderSurfaceInterface* surface){};
303 * @brief Called by the base class to inform deriving classes that we are being paused.
305 virtual void OnPause(){};
308 * @brief Called by the base class to inform deriving classes that we are resuming from a paused state.
310 virtual void OnResume(){};
313 * Recalculate the touch position if required
314 * @param[in,out] point The touch point
316 virtual void RecalculateTouchPosition(Integration::Point& point){};
320 * Resets the event handling.
325 * Initializes the DPI for this object.
327 void InitializeDpi();
330 static uint32_t mSceneHolderCounter; ///< A counter to track the SceneHolder creation
332 class SceneHolderLifeCycleObserver;
333 std::unique_ptr<SceneHolderLifeCycleObserver> mLifeCycleObserver; ///< The adaptor life cycle observer
336 Graphics::UniquePtr<Graphics::RenderTarget> mRenderTarget{nullptr};
339 uint32_t mId; ///< A unique ID to identify the SceneHolder starting from 0
340 Dali::Integration::Scene mScene; ///< The Scene
341 std::string mName; ///< The name of the SceneHolder
343 std::unique_ptr<Dali::RenderSurfaceInterface> mSurface; ///< The window rendering surface
344 Adaptor* mAdaptor; ///< The adaptor
346 Dali::Integration::TouchEventCombiner mCombiner; ///< Combines multi-touch events.
348 Uint16Pair mDpi; ///< The DPI for this SceneHolder.
350 std::atomic<bool> mIsBeingDeleted; ///< This is set only from the event thread and read only from the render thread
352 bool mAdaptorStarted : 1; ///< Whether the adaptor has started or not
353 bool mVisible : 1; ///< Whether the scene is visible or not
356 } // namespace Adaptor
358 } // namespace Internal
360 // Get impl of handle
361 inline Internal::Adaptor::SceneHolder& GetImplementation(Dali::Integration::SceneHolder& sceneHolder)
363 DALI_ASSERT_ALWAYS(sceneHolder && "SceneHolder handle is empty");
364 Dali::RefObject& object = sceneHolder.GetBaseObject();
365 return static_cast<Internal::Adaptor::SceneHolder&>(object);
368 inline const Internal::Adaptor::SceneHolder& GetImplementation(const Dali::Integration::SceneHolder& sceneHolder)
370 DALI_ASSERT_ALWAYS(sceneHolder && "SceneHolder handle is empty");
371 const Dali::RefObject& object = sceneHolder.GetBaseObject();
372 return static_cast<const Internal::Adaptor::SceneHolder&>(object);
377 #endif // DALI_INTEGRATION_INTERNAL_SCENEHOLDER_H