1 #ifndef __DALI_INTERNAL_ACTOR_H__
2 #define __DALI_INTERNAL_ACTOR_H__
5 * Copyright (c) 2014 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/common/map-wrapper.h>
26 #include <dali/public-api/common/vector-wrapper.h>
27 #include <dali/public-api/object/ref-object.h>
28 #include <dali/public-api/actors/actor.h>
29 #include <dali/public-api/common/dali-common.h>
30 #include <dali/public-api/events/gesture.h>
31 #include <dali/public-api/math/viewport.h>
32 #include <dali/internal/event/common/proxy-object.h>
33 #include <dali/internal/event/common/stage-def.h>
34 #include <dali/internal/event/actors/actor-declarations.h>
35 #include <dali/internal/event/actor-attachments/actor-attachment-declarations.h>
36 #include <dali/internal/update/nodes/node-declarations.h>
38 #ifdef DYNAMICS_SUPPORT
39 #include <dali/internal/event/dynamics/dynamics-declarations.h>
48 struct MouseWheelEvent;
54 class ActorGestureData;
59 typedef IntrusivePtr<Actor> ActorPtr;
60 typedef Dali::ActorContainer ActorContainer; // Store handles to return via public-api
61 typedef ActorContainer::iterator ActorIter;
62 typedef ActorContainer::const_iterator ActorConstIter;
65 * Actor is the primary object which Dali applications interact with.
66 * UI controls can be built by combining multiple actors.
67 * Multi-Touch events are received through signals emitted by the actor tree.
69 * An Actor is a proxy for a Node in the scene graph.
70 * When an Actor is added to the Stage, it creates a node and attaches it to the scene graph.
71 * The scene-graph can be updated in a separate thread, so the attachment is done using an asynchronous message.
72 * When a tree of Actors is detached from the Stage, a message is sent to destroy the associated nodes.
74 class Actor : public ProxyObject
80 * @return A smart-pointer to the newly allocated Actor.
82 static ActorPtr New();
85 * Retrieve the name of the actor.
88 const std::string& GetName() const;
91 * Set the name of the actor.
92 * @param[in] name The new name.
94 void SetName(const std::string& name);
97 * @copydoc Dali::Actor::GetId
99 unsigned int GetId() const;
104 * Attach an object to an actor.
105 * @pre The actor does not already have an attachment.
106 * @param[in] attachment The object to attach.
108 void Attach(ActorAttachment& attachment);
111 * Retreive the object attached to an actor.
112 * @return The attachment.
114 ActorAttachmentPtr GetAttachment();
119 * Query whether an actor is the root actor, which is owned by the Stage.
120 * @return True if the actor is a root actor.
128 * Query whether the actor is connected to the Stage.
130 bool OnStage() const;
133 * Query whether the actor is a RenderableActor derived type.
134 * @return True if the actor is renderable.
136 bool IsRenderable() const
138 // inlined as this is called a lot in hit testing
139 return mIsRenderable;
143 * Query whether the actor is of class Dali::Layer
144 * @return True if the actor is a layer.
148 // inlined as this is called a lot in hit testing
153 * Gets the layer in which the actor is present
154 * @return The layer, which will be uninitialized if the actor is off-stage.
156 Dali::Layer GetLayer();
159 * Adds a child Actor to this Actor.
160 * @pre The child actor is not the same as the parent actor.
161 * @pre The child actor does not already have a parent.
162 * @param [in] child The child.
163 * @post The child will be referenced by its parent.
165 void Add(Actor& child);
168 * Inserts a child Actor to this Actor's child list
169 * @pre The child actor is not the same as the parent actor.
170 * @pre The child actor does not already have a parent.
171 * @param [in] index in childlist to insert child at
172 * @param [in] child The child.
173 * @post The child will be referenced by its parent.
175 void Insert(unsigned int index, Actor& child);
178 * Removes a child Actor from this Actor.
179 * @param [in] child The child.
180 * @post The child will be unreferenced.
182 void Remove(Actor& child);
185 * @copydoc Dali::Actor::Unparent
190 * Retrieve the number of children held by the actor.
191 * @return The number of children
193 unsigned int GetChildCount() const;
196 * @copydoc Dali::Actor::GetChildAt
198 Dali::Actor GetChildAt(unsigned int index) const;
201 * Retrieve the Actor's children.
202 * @return A copy of the container of children.
204 ActorContainer GetChildren();
207 * Retrieve the Actor's children.
208 * @return A const reference to the container of children.
210 const ActorContainer& GetChildren() const;
213 * Retrieve a reference to Actor's children.
214 * @note Not for public use.
215 * @return A reference to the container of children.
217 ActorContainer& GetChildrenInternal()
223 * @copydoc Dali::Actor::FindChildByName
225 ActorPtr FindChildByName(const std::string& actorName);
228 * @copydoc Dali::Actor::FindChildByAlias
230 Dali::Actor FindChildByAlias(const std::string& actorAlias);
233 * @copydoc Dali::Actor::FindChildById
235 ActorPtr FindChildById(const unsigned int id);
238 * Retrieve the parent of an Actor.
239 * @return The parent actor, or NULL if the Actor does not have a parent.
241 Actor* GetParent() const
247 * Sets the size of an actor.
248 * ActorAttachments attached to the actor, can be scaled to fit within this area.
249 * This does not interfere with the actors scale factor.
250 * @param [in] width The new width.
251 * @param [in] height The new height.
253 void SetSize(float width, float height);
256 * Sets the size of an actor.
257 * ActorAttachments attached to the actor, can be scaled to fit within this area.
258 * This does not interfere with the actors scale factor.
259 * @param [in] width The size of the actor along the x-axis.
260 * @param [in] height The size of the actor along the y-axis.
261 * @param [in] depth The size of the actor along the z-axis.
263 void SetSize(float width, float height, float depth);
266 * Sets the size of an actor.
267 * ActorAttachments attached to the actor, can be scaled to fit within this area.
268 * This does not interfere with the actors scale factor.
269 * @param [in] size The new size.
271 void SetSize(const Vector2& size);
274 * Sets the size of an actor.
275 * ActorAttachments attached to the actor, can be scaled to fit within this area.
276 * This does not interfere with the actors scale factor.
277 * @param [in] size The new size.
279 void SetSize(const Vector3& size);
282 * Set the width component of the Actor's size.
283 * @param [in] width The new width component.
285 void SetWidth( float width );
288 * Set the height component of the Actor's size.
289 * @param [in] height The new height component.
291 void SetHeight( float height );
294 * Set the depth component of the Actor's size.
295 * @param [in] depth The new depth component.
297 void SetDepth( float depth );
300 * Retrieve the Actor's size from event side.
301 * This size will be the size set or if animating then the target size.
302 * @return The Actor's size.
304 const Vector3& GetSize() const;
307 * Retrieve the Actor's size from update side.
308 * This size will be the size set or animating but will be a frame behind.
309 * @return The Actor's size.
311 const Vector3& GetCurrentSize() const;
314 * Return the natural size of the actor
316 * @return The actor's natural size
318 virtual Vector3 GetNaturalSize() const;
321 * Set the origin of an actor, within its parent's area.
322 * This is expressed in 2D unit coordinates, such that (0.0, 0.0, 0.5) is the top-left corner of the parent,
323 * and (1.0, 1.0, 0.5) is the bottom-right corner.
324 * The default parent-origin is top-left (0.0, 0.0, 0.5).
325 * An actor position is the distance between this origin, and the actors anchor-point.
326 * @param [in] origin The new parent-origin.
328 void SetParentOrigin(const Vector3& origin);
331 * Set the x component of the parent-origin
332 * @param [in] x The new x value.
334 void SetParentOriginX( float x );
337 * Set the y component of the parent-origin
338 * @param [in] y The new y value.
340 void SetParentOriginY( float y );
343 * Set the z component of the parent-origin
344 * @param [in] z The new z value.
346 void SetParentOriginZ( float z );
349 * Retrieve the parent-origin of an actor.
350 * @return The parent-origin.
352 const Vector3& GetCurrentParentOrigin() const;
355 * Set the anchor-point of an actor. This is expressed in 2D unit coordinates, such that
356 * (0.0, 0.0, 0.5) is the top-left corner of the actor, and (1.0, 1.0, 0.5) is the bottom-right corner.
357 * The default anchor point is top-left (0.0, 0.0, 0.5).
358 * An actor position is the distance between its parent-origin, and this anchor-point.
359 * An actor's rotation is centered around its anchor-point.
360 * @param [in] anchorPoint The new anchor-point.
362 void SetAnchorPoint(const Vector3& anchorPoint);
365 * Set the x component of the anchor-point.
366 * @param [in] x The new x value.
368 void SetAnchorPointX( float x );
371 * Set the y component of the anchor-point.
372 * @param [in] y The new y value.
374 void SetAnchorPointY( float y );
377 * Set the z component of the anchor-point.
378 * @param [in] z The new z value.
380 void SetAnchorPointZ( float z );
383 * Retrieve the anchor-point of an actor.
384 * @return The anchor-point.
386 const Vector3& GetCurrentAnchorPoint() const;
389 * Sets the position of the Actor.
390 * The coordinates are relative to the Actor's parent.
391 * The Actor's z position will be set to 0.0f.
392 * @param [in] x The new x position
393 * @param [in] y The new y position
395 void SetPosition(float x, float y);
398 * Sets the position of the Actor.
399 * The coordinates are relative to the Actor's parent.
400 * @param [in] x The new x position
401 * @param [in] y The new y position
402 * @param [in] z The new z position
404 void SetPosition(float x, float y, float z);
407 * Sets the position of the Actor.
408 * The coordinates are relative to the Actor's parent.
409 * @param [in] position The new position.
411 void SetPosition(const Vector3& position);
414 * Set the position of an actor along the X-axis.
415 * @param [in] x The new x position
420 * Set the position of an actor along the Y-axis.
421 * @param [in] y The new y position.
426 * Set the position of an actor along the Z-axis.
427 * @param [in] z The new z position
432 * Move an actor relative to its existing position.
433 * @param[in] distance The actor will move by this distance.
435 void MoveBy(const Vector3& distance);
438 * Retrieve the position of the Actor.
439 * The coordinates are relative to the Actor's parent.
440 * @return the Actor's position.
442 const Vector3& GetCurrentPosition() const;
445 * @copydoc Dali::Actor::GetCurrentWorldPosition()
447 const Vector3& GetCurrentWorldPosition() const;
450 * @copydoc Dali::Actor::SetPositionInheritanceMode()
452 void SetPositionInheritanceMode( PositionInheritanceMode mode );
455 * @copydoc Dali::Actor::GetPositionInheritanceMode()
457 PositionInheritanceMode GetPositionInheritanceMode() const;
460 * Sets the rotation of the Actor.
461 * @param [in] angleRadians The new rotation angle in radians.
462 * @param [in] axis The new axis of rotation.
464 void SetRotation(const Radian& angleRadians, const Vector3& axis);
467 * Sets the rotation of the Actor.
468 * @param [in] rotation The new rotation.
470 void SetRotation(const Quaternion& rotation);
473 * Rotate an actor around its existing rotation axis.
474 * @param[in] angleRadians The angle to the rotation to combine with the existing rotation.
475 * @param[in] axis The axis of the rotation to combine with the existing rotation.
477 void RotateBy(const Radian& angleRadians, const Vector3& axis);
480 * Apply a relative rotation to an actor.
481 * @param[in] relativeRotation The rotation to combine with the actors existing rotation.
483 void RotateBy(const Quaternion& relativeRotation);
486 * Retreive the Actor's rotation.
487 * @return the rotation.
489 const Quaternion& GetCurrentRotation() const;
492 * Set whether a child actor inherits it's parent's orientation. Default is to inherit.
493 * Switching this off means that using SetRotation() sets the actor's world orientation.
494 * @param[in] inherit - true if the actor should inherit orientation, false otherwise.
496 void SetInheritRotation(bool inherit);
499 * Returns whether the actor inherit's it's parent's orientation.
500 * @return true if the actor inherit's it's parent orientation, false if it uses world orientation.
502 bool IsRotationInherited() const;
505 * @copydoc Dali::Actor::GetCurrentWorldRotation()
507 const Quaternion& GetCurrentWorldRotation() const;
510 * Sets a scale factor applied to an actor.
511 * @param [in] scale The scale factor applied on all axes.
513 void SetScale(float scale);
516 * Sets a scale factor applied to an actor.
517 * @param [in] scaleX The scale factor applied along the x-axis.
518 * @param [in] scaleY The scale factor applied along the y-axis.
519 * @param [in] scaleZ The scale factor applied along the z-axis.
521 void SetScale(float scaleX, float scaleY, float scaleZ);
524 * Sets a scale factor applied to an actor.
525 * @param [in] scale A vector representing the scale factor for each axis.
527 void SetScale(const Vector3& scale);
530 * Set the x component of the scale factor.
531 * @param [in] x The new x value.
533 void SetScaleX( float x );
536 * Set the y component of the scale factor.
537 * @param [in] y The new y value.
539 void SetScaleY( float y );
542 * Set the z component of the scale factor.
543 * @param [in] z The new z value.
545 void SetScaleZ( float z );
548 * Apply a relative scale to an actor.
549 * @param[in] relativeScale The scale to combine with the actors existing scale.
551 void ScaleBy(const Vector3& relativeScale);
554 * Retrieve the scale factor applied to an actor.
555 * @return A vector representing the scale factor for each axis.
557 const Vector3& GetCurrentScale() const;
560 * @copydoc Dali::Actor::GetCurrentWorldScale()
562 const Vector3& GetCurrentWorldScale() const;
565 * @copydoc Dali::Actor::SetInheritScale()
567 void SetInheritScale( bool inherit );
570 * @copydoc Dali::Actor::IsScaleInherited()
572 bool IsScaleInherited() const;
575 * @copydoc Dali::Actor::GetCurrentWorldMatrix()
577 Matrix GetCurrentWorldMatrix() const;
582 * Sets the visibility flag of an actor.
583 * @param [in] visible The new visibility flag.
585 void SetVisible(bool visible);
588 * Retrieve the visibility flag of an actor.
589 * @return The visibility flag.
591 bool IsVisible() const;
594 * Sets the opacity of an actor.
595 * @param [in] opacity The new opacity.
597 void SetOpacity(float opacity);
600 * Apply a relative opacity change to an actor.
601 * @param[in] relativeOpacity The opacity to combine with the actors existing opacity.
603 void OpacityBy(float relativeOpacity);
606 * Retrieve the actor's opacity.
607 * @return The actor's opacity.
609 float GetCurrentOpacity() const;
612 * Sets whether an actor should emit touch or hover signals; see SignalTouch() and SignalHover().
613 * An actor is sensitive by default, which means that as soon as an application connects to the SignalTouch(),
614 * the touch event signal will be emitted, and as soon as an application connects to the SignalHover(), the
615 * hover event signal will be emitted.
617 * If the application wishes to temporarily disable the touch or hover event signal emission, then they can do so by calling:
619 * actor.SetSensitive(false);
622 * Then, to re-enable the touch or hover event signal emission, the application should call:
624 * actor.SetSensitive(true);
627 * @see SignalTouch() and SignalHover().
628 * @note If an actor's sensitivity is set to false, then it's children will not emit a touch or hover event signal either.
629 * @param[in] sensitive true to enable emission of the touch or hover event signals, false otherwise.
631 void SetSensitive(bool sensitive)
633 mSensitive = sensitive;
637 * Query whether an actor emits touch or hover event signals.
638 * @see SetSensitive(bool)
639 * @return true, if emission of touch or hover event signals is enabled, false otherwise.
641 bool IsSensitive() const
647 * @copydoc Dali::Actor::SetDrawMode
649 void SetDrawMode( DrawMode::Type drawMode );
652 * @copydoc Dali::Actor::GetDrawMode
654 DrawMode::Type GetDrawMode() const;
657 * @copydoc Dali::Actor::SetOverlay
659 void SetOverlay(bool enable);
662 * @copydoc Dali::Actor::IsOverlay
664 bool IsOverlay() const;
667 * Sets whether an actor transmits geometry scaling to it's children.
668 * The default value is for it not to transmit scaling.
669 * @param[in] transmitGeometryScaling True to transmit scaling.
671 void SetTransmitGeometryScaling(bool transmitGeometryScaling);
674 * Get the TransmitGeometryScaling property for this actor.
675 * @return True if geometry scaling is applied to the inherited scale.
677 bool GetTransmitGeometryScaling() const;
680 * Sets the initial volume of the actor. Used for scaling the
681 * actor appropriately as the actor is sized when transmitGeometryScaling
684 * @param[in] volume the volume of the model and it's children
686 void SetInitialVolume(const Vector3& volume);
689 * Sets the actor's color. The final color of actor depends on its color mode.
690 * This final color is applied to the drawable elements of an actor.
691 * @param [in] color The new color.
693 void SetColor(const Vector4& color);
696 * Set the red component of the color.
697 * @param [in] red The new red component.
699 void SetColorRed( float red );
702 * Set the green component of the color.
703 * @param [in] green The new green component.
705 void SetColorGreen( float green );
708 * Set the blue component of the scale factor.
709 * @param [in] blue The new blue value.
711 void SetColorBlue( float blue );
714 * Apply a relative color change to an actor.
715 * @param[in] relativeColor The color to combine with the actors existing color.
717 void ColorBy(const Vector4& relativeColor);
720 * Retrieve the actor's color.
723 const Vector4& GetCurrentColor() const;
726 * Sets the actor's color mode.
727 * Color mode specifies whether Actor uses its own color or inherits its parent color
728 * @param [in] colorMode to use.
730 void SetColorMode(ColorMode colorMode);
733 * Returns the actor's color mode.
734 * @return currently used colorMode.
736 ColorMode GetColorMode() const;
739 * @copydoc Dali::Actor::GetCurrentWorldColor()
741 const Vector4& GetCurrentWorldColor() const;
743 #ifdef DYNAMICS_SUPPORT
747 /// @copydoc Dali::Actor::DisableDynamics
748 void DisableDynamics();
750 /// @copydoc Dali::Actor::EnableDynamics(Dali::DynamicsBodyConfig)
751 DynamicsBodyPtr EnableDynamics(DynamicsBodyConfigPtr bodyConfig);
753 /// @copydoc Dali::Actor::GetDynamicsBody
754 DynamicsBodyPtr GetDynamicsBody() const;
756 /// @copydoc Dali::Actor::AddDynamicsJoint(Dali::Actor,const Vector3&)
757 DynamicsJointPtr AddDynamicsJoint( ActorPtr attachedActor, const Vector3& offset );
759 /// @copydoc Dali::Actor::AddDynamicsJoint(Dali::Actor,const Vector3&,const Vector3&)
760 DynamicsJointPtr AddDynamicsJoint( ActorPtr attachedActor, const Vector3& offsetA, const Vector3& offsetB );
762 /// @copydoc Dali::Actor::GetNumberOfJoints
763 const int GetNumberOfJoints() const;
765 /// @copydoc Dali::Actor::GetDynamicsJointByIndex
766 DynamicsJointPtr GetDynamicsJointByIndex( const int index ) const;
768 /// @copydoc Dali::Actor::GetDynamicsJoint
769 DynamicsJointPtr GetDynamicsJoint( ActorPtr attachedActor ) const;
771 /// @copydoc Dali::Actor::RemoveDynamicsJoint
772 void RemoveDynamicsJoint( DynamicsJointPtr joint );
775 * Hold a reference to a DynamicsJoint
776 * @param[in] joint The joint
778 void ReferenceJoint( DynamicsJointPtr joint );
781 * Release a reference to a DynamicsJoint
782 * @param[in] joint The joint
784 void ReleaseJoint( DynamicsJointPtr joint );
787 * Set this actor to be the root actor in the dynamics simulation
788 * All children of the actor are added/removed from the simulation.
789 * @param[in] flag When true sets this actor to be the simulation world root actor and
790 * if OnStage() all dynamics enabled child actors are added to the simulation,
791 * when false stops this actor being the simulation root and if OnStage() all
792 * dynamics enabled child actors are removed from the simulation.
794 void SetDynamicsRoot(bool flag);
798 * Check if this actor is the root actor in the dynamics simulation
799 * @return true if this is the dynamics root actor.
801 bool IsDynamicsRoot() const;
804 * Add actor to the dynamics simulation
805 * Invoked when the actor is staged, or it's parent becomes the simulation root
807 void ConnectDynamics();
810 * Remove actor from the dynamics simulation
811 * Invoked when the actor is unstaged, or it's parent stops being the the simulation root
813 void DisconnectDynamics();
816 * An actor in a DynamicsJoint relationship has been staged
817 * @param[in] actor The actor passed into AddDynamicsJoint()
819 void AttachedActorOnStage( Dali::Actor actor );
822 * An actor in a DynamicsJoint relationship has been unstaged
823 * @param[in] actor The actor passed into AddDynamicsJoint()
825 void AttachedActorOffStage( Dali::Actor actor );
827 #endif // DYNAMICS_SUPPORT
831 * Converts screen coordinates into the actor's coordinate system.
832 * @note The actor coordinates are relative to the top-left (0.0, 0.0, 0.5)
833 * @param[out] localX On return, the X-coordinate relative to the actor.
834 * @param[out] localY On return, the Y-coordinate relative to the actor.
835 * @param[in] screenX The screen X-coordinate.
836 * @param[in] screenY The screen Y-coordinate.
837 * @return True if the conversion succeeded.
839 bool ScreenToLocal(float& localX, float& localY, float screenX, float screenY) const;
842 * Converts screen coordinates into the actor's coordinate system.
843 * @note The actor coordinates are relative to the top-left (0.0, 0.0, 0.5)
844 * @param[in] renderTask The render-task used to display the actor.
845 * @param[out] localX On return, the X-coordinate relative to the actor.
846 * @param[out] localY On return, the Y-coordinate relative to the actor.
847 * @param[in] screenX The screen X-coordinate.
848 * @param[in] screenY The screen Y-coordinate.
849 * @return True if the conversion succeeded.
851 bool ScreenToLocal(RenderTask& renderTask, float& localX, float& localY, float screenX, float screenY) const;
854 * Converts from the actor's coordinate system to screen coordinates.
855 * @note The actor coordinates are relative to the top-left (0.0, 0.0, 0.5)
856 * @param[in] viewMatrix The view-matrix
857 * @param[in] projectionMatrix The projection-matrix
858 * @param[in] viewport The view-port
859 * @param[out] localX On return, the X-coordinate relative to the actor.
860 * @param[out] localY On return, the Y-coordinate relative to the actor.
861 * @param[in] screenX The screen X-coordinate.
862 * @param[in] screenY The screen Y-coordinate.
863 * @return True if the conversion succeeded.
865 bool ScreenToLocal( const Matrix& viewMatrix,
866 const Matrix& projectionMatrix,
867 const Viewport& viewport,
871 float screenY ) const;
874 * Performs a ray-sphere test with the given pick-ray and the actor's bounding sphere.
875 * @note The actor coordinates are relative to the top-left (0.0, 0.0, 0.5)
876 * @param[in] rayOrigin The ray origin in the world's reference system.
877 * @param[in] rayDir The ray director vector in the world's reference system.
878 * @return True if the ray intersects the actor's bounding sphere.
880 bool RaySphereTest( const Vector4& rayOrigin, const Vector4& rayDir ) const;
883 * Performs a ray-actor test with the given pick-ray and the actor's geometry.
884 * @note The actor coordinates are relative to the top-left (0.0, 0.0, 0.5)
885 * @param[in] rayOrigin The ray origin in the world's reference system.
886 * @param[in] rayDir The ray director vector in the world's reference system.
887 * @param[out] hitPointLocal The hit point in the Actor's local reference system.
888 * @param[out] distance The distance from the hit point to the camera.
889 * @return True if the ray intersects the actor's geometry.
891 bool RayActorTest( const Vector4& rayOrigin, const Vector4& rayDir, Vector4& hitPointLocal, float& distance ) const;
894 * Sets whether the actor should receive a notification when touch or hover motion events leave
895 * the boundary of the actor.
897 * @note By default, this is set to false as most actors do not require this.
898 * @note Need to connect to the SignalTouch or SignalHover to actually receive this event.
900 * @param[in] required Should be set to true if a Leave event is required
902 void SetLeaveRequired(bool required);
905 * This returns whether the actor requires touch or hover events whenever touch or hover motion events leave
906 * the boundary of the actor.
907 * @return true if a Leave event is required, false otherwise.
909 bool GetLeaveRequired() const;
912 * @copydoc Dali::Actor::SetKeyboardFocusable()
914 void SetKeyboardFocusable( bool focusable );
917 * @copydoc Dali::Actor::IsKeyboardFocusable()
919 bool IsKeyboardFocusable() const;
922 * Query whether the application or derived actor type requires touch events.
923 * @return True if touch events are required.
925 bool GetTouchRequired() const;
928 * Query whether the application or derived actor type requires hover events.
929 * @return True if hover events are required.
931 bool GetHoverRequired() const;
934 * Query whether the application or derived actor type requires mouse wheel events.
935 * @return True if mouse wheel events are required.
937 bool GetMouseWheelEventRequired() const;
940 * Query whether the actor is actually hittable. This method checks whether the actor is
941 * sensitive, has the visibility flag set to true and is not fully transparent.
942 * @return true, if it can be hit, false otherwise.
944 bool IsHittable() const;
949 * Retrieve the gesture data associated with this actor. The first call to this method will
950 * allocate space for the ActorGestureData so this should only be called if an actor really does
952 * @return Reference to the ActorGestureData for this actor.
953 * @note Once the gesture-data is created for an actor it is likely that gestures are required
954 * throughout the actor's lifetime so it will only be deleted when the actor is destroyed.
956 ActorGestureData& GetGestureData();
959 * Queries whether the actor requires the gesture type.
960 * @param[in] type The gesture type.
962 bool IsGestureRequred( Gesture::Type type ) const;
967 * Used by the EventProcessor to emit touch event signals.
968 * @param[in] event The touch event.
969 * @return True if the event was consumed.
971 bool EmitTouchEventSignal(const TouchEvent& event);
974 * Used by the EventProcessor to emit hover event signals.
975 * @param[in] event The hover event.
976 * @return True if the event was consumed.
978 bool EmitHoverEventSignal(const HoverEvent& event);
981 * Used by the EventProcessor to emit mouse wheel event signals.
982 * @param[in] event The mouse wheel event.
983 * @return True if the event was consumed.
985 bool EmitMouseWheelEventSignal(const MouseWheelEvent& event);
988 * @copydoc Dali::Actor::TouchedSignal()
990 Dali::Actor::TouchSignalV2& TouchedSignal();
993 * @copydoc Dali::Actor::HoveredSignal()
995 Dali::Actor::HoverSignalV2& HoveredSignal();
998 * @copydoc Dali::Actor::MouseWheelEventSignal()
1000 Dali::Actor::MouseWheelEventSignalV2& MouseWheelEventSignal();
1003 * @copydoc Dali::Actor::SetSizeSignal()
1005 Dali::Actor::SetSizeSignalV2& SetSizeSignal();
1008 * @copydoc Dali::Actor::OnStageSignal()
1010 Dali::Actor::OnStageSignalV2& OnStageSignal();
1013 * @copydoc Dali::Actor::OffStageSignal()
1015 Dali::Actor::OffStageSignalV2& OffStageSignal();
1018 * Connects a callback function with the object's signals.
1019 * @param[in] object The object providing the signal.
1020 * @param[in] tracker Used to disconnect the signal.
1021 * @param[in] signalName The signal to connect to.
1022 * @param[in] functor A newly allocated FunctorDelegate.
1023 * @return True if the signal was connected.
1024 * @post If a signal was connected, ownership of functor was passed to CallbackBase. Otherwise the caller is responsible for deleting the unused functor.
1026 static bool DoConnectSignal( BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor );
1029 * Performs actions as requested using the action name.
1030 * @param[in] object The object on which to perform the action.
1031 * @param[in] actionName The action to perform.
1032 * @param[in] attributes The attributes with which to perfrom this action.
1033 * @return true if the action was done.
1035 static bool DoAction(BaseObject* object, const std::string& actionName, const std::vector<Property::Value>& attributes);
1037 public: // For Animation
1040 * This should only be called by Animation, when the actor is resized using Animation::Resize().
1042 * @param[in] animation The animation that resized the actor
1043 * @param[in] targetSize The new target size of the actor
1045 void NotifySizeAnimation( Animation& animation, const Vector3& targetSize);
1048 * For use in derived classes.
1049 * This should only be called by Animation, when the actor is resized using Animation::Resize().
1051 virtual void OnSizeAnimation( Animation& animation, const Vector3& targetSize) {}
1064 * Protected Constructor. See Actor::New().
1065 * The second-phase construction Initialize() member should be called immediately after this.
1066 * @param[in] derivedType The derived type of actor (if any).
1068 Actor( DerivedType derivedType );
1071 * Second-phase constructor. Must be called immediately after creating a new Actor;
1073 void Initialize(void);
1076 * A reference counted object may only be deleted by calling Unreference()
1081 * Called on a child during Add() when the parent actor is connected to the Stage.
1082 * @param[in] stage The stage.
1083 * @param[in] index If set, it is only used for positioning the actor within the parent's child list.
1085 void ConnectToStage(Stage& stage, int index = -1);
1088 * Helper for ConnectToStage, to recursively connect a tree of actors.
1089 * This is atomic i.e. not interrupted by user callbacks.
1090 * @param[in] stage The stage.
1091 * @param[in] index If set, it is only used for positioning the actor within the parent's child list.
1092 * @param[out] connectionList On return, the list of connected actors which require notification.
1094 void RecursiveConnectToStage( Stage& stage, ActorContainer& connectionList, int index = -1 );
1097 * Connect the Node associated with this Actor to the scene-graph.
1098 * @param[in] index If set, it is only used for positioning the actor within the parent's child list.
1100 void ConnectToSceneGraph(int index = -1);
1103 * Helper for ConnectToStage, to notify a connected actor through the public API.
1105 void NotifyStageConnection();
1108 * Called on a child during Remove() when the actor was previously on the Stage.
1110 void DisconnectFromStage();
1113 * Helper for DisconnectFromStage, to recursively disconnect a tree of actors.
1114 * This is atomic i.e. not interrupted by user callbacks.
1115 * @param[out] disconnectionList On return, the list of disconnected actors which require notification.
1117 void RecursiveDisconnectFromStage( ActorContainer& disconnectionList );
1120 * Disconnect the Node associated with this Actor from the scene-graph.
1122 void DisconnectFromSceneGraph();
1125 * Helper for DisconnectFromStage, to notify a disconnected actor through the public API.
1127 void NotifyStageDisconnection();
1130 * When the Actor is OnStage, checks whether the corresponding Node is connected to the scene graph.
1131 * @return True if the Actor is OnStage & has a Node connected to the scene graph.
1133 bool IsNodeConnected() const;
1136 * Calculate the size of the z dimension for a 2D size
1138 * @param[in] size The 2D size (X, Y) to calculate Z from
1140 * @return Return the Z dimension for this size
1142 float CalculateSizeZ( const Vector2& size ) const;
1144 public: // Default property extensions from ProxyObject
1147 * @copydoc Dali::Internal::ProxyObject::IsSceneObjectRemovable()
1149 virtual bool IsSceneObjectRemovable() const;
1152 * @copydoc Dali::Internal::ProxyObject::GetDefaultPropertyCount()
1154 virtual unsigned int GetDefaultPropertyCount() const;
1157 * @copydoc Dali::Internal::ProxyObject::GetDefaultPropertyIndices()
1159 virtual void GetDefaultPropertyIndices( Property::IndexContainer& indices ) const;
1162 * @copydoc Dali::Internal::ProxyObject::GetDefaultPropertyName()
1164 virtual const std::string& GetDefaultPropertyName(Property::Index index) const;
1167 * @copydoc Dali::Internal::ProxyObject::GetDefaultPropertyIndex()
1169 virtual Property::Index GetDefaultPropertyIndex(const std::string& name) const;
1172 * @copydoc Dali::Internal::ProxyObject::IsDefaultPropertyWritable()
1174 virtual bool IsDefaultPropertyWritable(Property::Index index) const;
1177 * @copydoc Dali::Internal::ProxyObject::IsDefaultPropertyAnimatable()
1179 virtual bool IsDefaultPropertyAnimatable(Property::Index index) const;
1182 * @copydoc Dali::Internal::ProxyObject::IsDefaultPropertyAConstraintInput()
1184 virtual bool IsDefaultPropertyAConstraintInput( Property::Index index ) const;
1187 * @copydoc Dali::Internal::ProxyObject::GetDefaultPropertyType()
1189 virtual Property::Type GetDefaultPropertyType(Property::Index index) const;
1192 * @copydoc Dali::Internal::ProxyObject::SetDefaultProperty()
1194 virtual void SetDefaultProperty(Property::Index index, const Property::Value& propertyValue);
1197 * @copydoc Dali::Internal::ProxyObject::SetCustomProperty()
1199 virtual void SetCustomProperty( Property::Index index, const CustomProperty& entry, const Property::Value& value );
1202 * @copydoc Dali::Internal::ProxyObject::GetDefaultProperty()
1204 virtual Property::Value GetDefaultProperty( Property::Index index ) const;
1207 * @copydoc Dali::Internal::ProxyObject::InstallSceneObjectProperty()
1209 virtual void InstallSceneObjectProperty( SceneGraph::PropertyBase& newProperty, const std::string& name, unsigned int index );
1212 * @copydoc Dali::Internal::ProxyObject::GetSceneObject()
1214 virtual const SceneGraph::PropertyOwner* GetSceneObject() const;
1217 * @copydoc Dali::Internal::ProxyObject::GetSceneObjectAnimatableProperty()
1219 virtual const SceneGraph::PropertyBase* GetSceneObjectAnimatableProperty( Property::Index index ) const;
1222 * @copydoc Dali::Internal::ProxyObject::GetSceneObjectInputProperty()
1224 virtual const PropertyInputImpl* GetSceneObjectInputProperty( Property::Index index ) const;
1227 * @copydoc Dali::Internal::ProxyObject::GetPropertyComponentIndex()
1229 virtual int GetPropertyComponentIndex( Property::Index index ) const;
1237 Actor(const Actor&);
1240 Actor& operator=(const Actor& rhs);
1243 * Set the actors parent.
1244 * @param[in] parent The new parent.
1245 * @param[in] index If set, it is only used for positioning the actor within the parent's child list.
1247 void SetParent(Actor* parent, int index = -1);
1250 * Helper to create a Node for this Actor.
1251 * To be overriden in derived classes.
1252 * @return A newly allocated node.
1254 virtual SceneGraph::Node* CreateNode() const;
1257 * For use in derived classes, called after Initialize()
1259 virtual void OnInitialize() {}
1262 * For use in internal derived classes.
1263 * This is called during ConnectToStage(), after the actor has finished adding its node to the scene-graph.
1264 * The derived class must not modify the actor hierachy (Add/Remove children) during this callback.
1266 virtual void OnStageConnectionInternal() {}
1269 * For use in internal derived classes.
1270 * This is called during DisconnectFromStage(), before the actor removes its node from the scene-graph.
1271 * The derived class must not modify the actor hierachy (Add/Remove children) during this callback.
1273 virtual void OnStageDisconnectionInternal() {}
1276 * For use in external (CustomActor) derived classes.
1277 * This is called after the atomic ConnectToStage() traversal has been completed.
1279 virtual void OnStageConnectionExternal() {}
1282 * For use in external (CustomActor) derived classes.
1283 * This is called after the atomic DisconnectFromStage() traversal has been completed.
1285 virtual void OnStageDisconnectionExternal() {}
1288 * For use in derived classes; this is called after Add() has added a child.
1289 * @param[in] child The child that was added.
1291 virtual void OnChildAdd( Actor& child ) {}
1294 * For use in derived classes; this is called after Remove() has removed a child.
1295 * @param[in] child The child that was removed.
1297 virtual void OnChildRemove( Actor& child ) {}
1300 * For use in derived classes.
1301 * This is called after SizeSet() has been called.
1303 virtual void OnSizeSet(const Vector3& targetSize) {}
1306 * For use in derived classes.
1307 * This is called after a non animatable custom property is set.
1308 * @param [in] index The index of the property.
1309 * @param [in] propertyValue The value of the property.
1311 virtual void OnPropertySet( Property::Index index, Property::Value propertyValue ) {}
1314 * For use in derived classes.
1315 * This is only called if mDerivedRequiresTouch is true, and the touch-signal was not consumed.
1316 * @param[in] event The touch event.
1317 * @return True if the event should be consumed.
1319 virtual bool OnTouchEvent(const TouchEvent& event) { return false; }
1322 * For use in derived classes.
1323 * This is only called if mDerivedRequiresHover is true, and the hover-signal was not consumed.
1324 * @param[in] event The hover event.
1325 * @return True if the event should be consumed.
1327 virtual bool OnHoverEvent(const HoverEvent& event) { return false; }
1330 * For use in derived classes.
1331 * This is only called if the mouse wheel signal was not consumed.
1332 * @param[in] event The mouse event.
1333 * @return True if the event should be consumed.
1335 virtual bool OnMouseWheelEvent(const MouseWheelEvent& event) { return false; }
1338 * For use in derived class
1339 * If an alias for a child exists, return the child otherwise return an empty handle.
1340 * For example 'previous' could return the last selected child.
1341 * @pre The Actor has been initialized.
1342 * @param[in] actorAlias the name of the actor to find
1343 * @return A handle to the actor if found, or an empty handle if not.
1345 virtual Dali::Actor GetChildByAlias(const std::string& actorAlias) { return Dali::Actor(); }
1348 * Support function for FindChildByAlias
1349 * @pre The Actor has been initialized.
1350 * @param[in] actorAlias the name of the aliased actor to find
1351 * @return A handle to the actor if found, or an empty handle if not.
1353 Dali::Actor DoGetChildByAlias(const std::string& actorAlias);
1357 StagePtr mStage; ///< Used to send messages to Node; valid until Core destruction
1358 Actor* mParent; ///< Each actor (except the root) can have one parent
1359 ActorContainer* mChildren; ///< Container of referenced actors
1360 const SceneGraph::Node* mNode; ///< Not owned
1361 Vector3* mParentOrigin; // NULL means ParentOrigin::DEFAULT. ParentOrigin is non-animatable
1362 Vector3* mAnchorPoint; // NULL means AnchorPoint::DEFAULT. AnchorPoint is non-animatable
1364 #ifdef DYNAMICS_SUPPORT
1365 DynamicsData* mDynamicsData; ///< optional physics data
1368 ActorGestureData* mGestureData; /// Optional Gesture data. Only created when actor requires gestures
1370 ActorAttachmentPtr mAttachment; ///< Optional referenced attachment
1373 Dali::Actor::TouchSignalV2 mTouchedSignalV2;
1374 Dali::Actor::HoverSignalV2 mHoveredSignalV2;
1375 Dali::Actor::MouseWheelEventSignalV2 mMouseWheelEventSignalV2;
1376 Dali::Actor::SetSizeSignalV2 mSetSizeSignalV2;
1377 Dali::Actor::OnStageSignalV2 mOnStageSignalV2;
1378 Dali::Actor::OffStageSignalV2 mOffStageSignalV2;
1380 Vector3 mSize; ///< Event-side storage for size (not a pointer as most actors will have a size)
1382 std::string mName; ///< Name of the actor
1383 unsigned int mId; ///< A unique ID to identify the actor starting from 1, and 0 is reserved
1385 const bool mIsRoot : 1; ///< Flag to identify the root actor
1386 const bool mIsRenderable : 1; ///< Flag to identify that this is a renderable actor
1387 const bool mIsLayer : 1; ///< Flag to identify that this is a layer
1388 bool mIsOnStage : 1; ///< Flag to identify whether the actor is on-stage
1389 bool mIsDynamicsRoot : 1; ///< Flag to identify if this is the dynamics world root
1390 bool mSensitive : 1; ///< Whether the actor emits touch event signals
1391 bool mLeaveRequired : 1; ///< Whether a touch event signal is emitted when the a touch leaves the actor's bounds
1392 bool mKeyboardFocusable : 1; ///< Whether the actor should be focusable by keyboard navigation
1393 bool mDerivedRequiresTouch : 1; ///< Whether the derived actor type requires touch event signals
1394 bool mDerivedRequiresHover : 1; ///< Whether the derived actor type requires hover event signals
1395 bool mDerivedRequiresMouseWheelEvent : 1; ///< Whether the derived actor type requires mouse wheel event signals
1396 bool mOnStageSignalled : 1; ///< Set to true before OnStageConnection signal is emitted, and false before OnStageDisconnection
1397 bool mInheritRotation : 1; ///< Cached: Whether the parent's rotation should be inherited.
1398 bool mInheritScale : 1; ///< Cached: Whether the parent's scale should be inherited.
1399 DrawMode::Type mDrawMode : 2; ///< Cached: How the actor and its children should be drawn
1400 PositionInheritanceMode mPositionInheritanceMode : 2; ///< Cached: Determines how position is inherited
1401 ColorMode mColorMode : 2; ///< Cached: Determines whether mWorldColor is inherited
1403 // Default properties
1404 typedef std::map<std::string, Property::Index> DefaultPropertyLookup;
1408 static ActorContainer mNullChildren; ///< Empty container (shared by all actors, returned by GetChildren() const)
1409 static unsigned int mActorCounter; ///< A counter to track the actor instance creation
1411 // Default properties
1412 static DefaultPropertyLookup* mDefaultPropertyLookup;
1417 * @brief Structure for setting up default properties and their details.
1419 struct PropertyDetails
1421 std::string name; ///< The name of the property.
1422 Property::Type type; ///< The property type.
1423 bool writable:1; ///< Whether the property is writable
1424 bool animatable:1; ///< Whether the property is animatable.
1425 bool constraintInput:1; ///< Whether the property can be used as an input to a constraint.
1428 } // namespace Internal
1430 // Helpers for public-api forwarding methods
1432 inline Internal::Actor& GetImplementation(Dali::Actor& actor)
1434 DALI_ASSERT_ALWAYS(actor && "Actor handle is empty");
1436 BaseObject& handle = actor.GetBaseObject();
1438 return static_cast<Internal::Actor&>(handle);
1441 inline const Internal::Actor& GetImplementation(const Dali::Actor& actor)
1443 DALI_ASSERT_ALWAYS(actor && "Actor handle is empty");
1445 const BaseObject& handle = actor.GetBaseObject();
1447 return static_cast<const Internal::Actor&>(handle);
1452 #endif // __DALI_INTERNAL_ACTOR_H__