1 #ifndef __DALI_INTERNAL_SCENE_GRAPH_NODE_H__
2 #define __DALI_INTERNAL_SCENE_GRAPH_NODE_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.
22 #include <dali/public-api/actors/actor-enumerations.h>
23 #include <dali/public-api/actors/draw-mode.h>
24 #include <dali/public-api/math/quaternion.h>
25 #include <dali/public-api/math/math-utils.h>
26 #include <dali/public-api/math/vector3.h>
27 #include <dali/internal/common/message.h>
28 #include <dali/internal/common/event-to-update.h>
29 #include <dali/internal/update/common/animatable-property.h>
30 #include <dali/internal/update/common/double-buffered.h>
31 #include <dali/internal/update/common/property-owner.h>
32 #include <dali/internal/update/common/property-vector3.h>
33 #include <dali/internal/update/common/scene-graph-buffers.h>
34 #include <dali/internal/update/common/inherited-property.h>
35 #include <dali/integration-api/debug.h>
36 #include <dali/internal/update/nodes/node-declarations.h>
37 #include <dali/internal/update/node-attachments/node-attachment-declarations.h>
38 #include <dali/internal/render/renderers/render-data-provider.h>
46 // value types used by messages
47 template <> struct ParameterType< ColorMode > : public BasicType< ColorMode > {};
48 template <> struct ParameterType< PositionInheritanceMode > : public BasicType< PositionInheritanceMode > {};
60 * Flag whether property has changed, during the Update phase.
62 enum NodePropertyFlags
65 TransformFlag = 0x001,
70 SortModifierFlag = 0x020,
71 ChildDeletedFlag = 0x040
74 static const int AllFlags = ( ChildDeletedFlag << 1 ) - 1; // all the flags
77 * Size is not inherited.
78 * VisibleFlag is inherited so that attachments can be synchronized with nodes after they become visible
80 static const int InheritedDirtyFlags = TransformFlag | VisibleFlag | ColorFlag | OverlayFlag;
82 // Flags which require the scene renderable lists to be updated
83 static const int RenderableUpdateFlags = TransformFlag | SortModifierFlag | ChildDeletedFlag;
86 * Node is the base class for all nodes in the Scene Graph.
87 * Each node provides a transformation which applies to the node and its children.
88 * Node data is double-buffered. This allows an update thread to modify node data, without interferring
89 * with another thread reading the values from the previous update traversal.
91 class Node : public PropertyOwner, public RenderDataProvider
96 static const PositionInheritanceMode DEFAULT_POSITION_INHERITANCE_MODE;
97 static const ColorMode DEFAULT_COLOR_MODE;
102 * Construct a new Node.
112 * When a Node is marked "active" it has been disconnected, but its properties have been modified.
113 * @note An inactive Node will be skipped during the UpdateManager ResetProperties stage.
114 * @param[in] isActive True if the Node is active.
116 void SetActive( bool isActive )
118 mIsActive = isActive;
122 * Query whether the Node is active.
123 * @return True if the Node is active.
125 bool IsActive() const
131 * Called during UpdateManager::DestroyNode shortly before Node is destroyed.
138 * Query whether the node is a layer.
139 * @return True if the node is a layer.
143 return (GetLayer() != NULL);
147 * Convert a node to a layer.
148 * @return A pointer to the layer, or NULL.
150 virtual Layer* GetLayer()
158 * Attach an object to this Node; This should only be done by UpdateManager::AttachToNode.
159 * @pre The Node does not already have an attachment.
160 * @param[in] attachment The object to attach.
162 void Attach( NodeAttachment& attachment );
165 * Query the node if it has an attachment.
166 * @return True if it has an attachment.
168 bool HasAttachment() const
174 * Retreive the object attached to this node.
175 * @return The attachment.
177 NodeAttachment& GetAttachment() const
182 // Containment methods
185 * Query whether a node is the root node. Root nodes cannot have a parent node.
186 * A node becomes a root node, when it is installed by UpdateManager.
187 * @return True if the node is a root node.
195 * Set whether a node is the root node. Root nodes cannot have a parent node.
196 * This method should only be called by UpdateManager.
197 * @pre When isRoot is true, the node must not have a parent.
198 * @param[in] isRoot Whether the node is now a root node.
200 void SetRoot(bool isRoot);
203 * Retrieve the parent of a Node.
204 * @return The parent node, or NULL if the Node has not been added to the scene-graph.
212 * Retrieve the parent of a Node.
213 * @return The parent node, or NULL if the Node has not been added to the scene-graph.
215 const Node* GetParent() const
221 * Connect a node to the scene-graph.
222 * @pre A node cannot be added to itself.
223 * @pre The parent node is connected to the scene-graph.
224 * @pre The childNode does not already have a parent.
225 * @pre The childNode is not a root node.
226 * @param[in] childNode The child to add.
228 void ConnectChild( Node* childNode );
231 * Disconnect a child (& its children) from the scene-graph.
232 * @pre childNode is a child of this Node.
233 * @param[in] updateBufferIndex The current update buffer index.
234 * @param[in] childNode The node to disconnect.
235 * @param[in] connectedNodes Disconnected Node attachments should be removed from here.
236 * @param[in] disconnectedNodes Disconnected Node attachments should be added here.
238 void DisconnectChild( BufferIndex updateBufferIndex, Node& childNode, std::set<Node*>& connectedNodes, std::set<Node*>& disconnectedNodes );
241 * Retrieve the children a Node.
242 * @return The container of children.
244 const NodeContainer& GetChildren() const
250 * Retrieve the children a Node.
251 * @return The container of children.
253 NodeContainer& GetChildren()
261 * Flag that one of the node values has changed in the current frame.
262 * @param[in] flag The flag to set.
264 void SetDirtyFlag(NodePropertyFlags flag)
270 * Flag that all of the node values are dirty.
272 void SetAllDirtyFlags()
274 mDirtyFlags = AllFlags;
278 * Query whether a node is dirty.
279 * @return The dirty flags
281 int GetDirtyFlags() const;
284 * Query whether a node is clean.
285 * @return True if the node is clean.
289 return ( NothingFlag == GetDirtyFlags() );
293 * Retrieve the parent-origin of the node.
294 * @return The parent-origin.
296 const Vector3& GetParentOrigin() const
298 return mParentOrigin.mValue;
302 * Sets both the local & base parent-origins of the node.
303 * @param[in] origin The new local & base parent-origins.
305 void SetParentOrigin(const Vector3& origin)
307 mParentOrigin.mValue = origin;
308 mParentOrigin.OnSet();
312 * Retrieve the anchor-point of the node.
313 * @return The anchor-point.
315 const Vector3& GetAnchorPoint() const
317 return mAnchorPoint.mValue;
321 * Sets both the local & base anchor-points of the node.
322 * @param[in] anchor The new local & base anchor-points.
324 void SetAnchorPoint(const Vector3& anchor)
326 mAnchorPoint.mValue = anchor;
327 mAnchorPoint.OnSet();
331 * Retrieve the local position of the node, relative to its parent.
332 * @param[in] bufferIndex The buffer to read from.
333 * @return The local position.
335 const Vector3& GetPosition(BufferIndex bufferIndex) const
337 return mPosition[bufferIndex];
341 * Sets both the local & base positions of the node.
342 * @param[in] updateBufferIndex The current update buffer index.
343 * @param[in] position The new local & base position.
345 void BakePosition(BufferIndex updateBufferIndex, const Vector3& position)
347 mPosition.Bake( updateBufferIndex, position );
351 * Sets the world of the node derived from the position of all its parents.
352 * @param[in] updateBufferIndex The current update buffer index.
353 * @param[in] position The world position.
355 void SetWorldPosition( BufferIndex updateBufferIndex, const Vector3& position )
357 mWorldPosition.Set( updateBufferIndex, position );
361 * Sets the position of the node derived from the position of all its parents.
362 * This method should only be called when the parent's world position is up-to-date.
363 * With a non-central anchor-point, the local rotation and scale affects the world position.
364 * Therefore the world rotation & scale must be updated before the world position.
365 * @pre The node has a parent.
366 * @param[in] updateBufferIndex The current update buffer index.
368 void InheritWorldPosition(BufferIndex updateBufferIndex)
370 DALI_ASSERT_DEBUG(mParent != NULL);
372 switch( mPositionInheritanceMode )
374 case INHERIT_PARENT_POSITION : ///@see Dali::PositionInheritanceMode for how these modes are expected to work
376 Vector3 finalPosition(-0.5f, -0.5f, -0.5f);
378 finalPosition += mParentOrigin.mValue;
379 finalPosition *= mParent->GetSize(updateBufferIndex);
380 finalPosition += mPosition[updateBufferIndex];
381 finalPosition *= mParent->GetWorldScale(updateBufferIndex);
382 const Quaternion& parentWorldRotation = mParent->GetWorldRotation(updateBufferIndex);
383 if(!parentWorldRotation.IsIdentity())
385 finalPosition *= parentWorldRotation;
388 // check if a node needs to be offsetted locally (only applies when AnchorPoint is not central)
389 // dont use operator== as that does a slower comparison (and involves function calls)
390 Vector3 localOffset(0.5f, 0.5f, 0.5f); // AnchorPoint::CENTER
391 localOffset -= mAnchorPoint.mValue;
393 if( ( fabsf( localOffset.x ) >= Math::MACHINE_EPSILON_0 ) ||
394 ( fabsf( localOffset.y ) >= Math::MACHINE_EPSILON_0 ) ||
395 ( fabsf( localOffset.z ) >= Math::MACHINE_EPSILON_0 ) )
397 localOffset *= mSize[updateBufferIndex];
399 Vector3 scale = mWorldScale[updateBufferIndex];
400 if(GetTransmitGeometryScaling())
402 // Remove geometry scaling to get back to actor scale
403 scale /= mGeometryScale;
405 // Also pick up sign of local scale
406 if (mScale[updateBufferIndex].x < 0.0f)
410 if (mScale[updateBufferIndex].y < 0.0f)
414 if (mScale[updateBufferIndex].z < 0.0f)
419 // If the anchor-point is not central, then position is affected by the local rotation & scale
420 localOffset *= scale;
421 const Quaternion& localWorldRotation = mWorldRotation[updateBufferIndex];
422 if(!localWorldRotation.IsIdentity())
424 localOffset *= localWorldRotation;
426 finalPosition += localOffset;
429 finalPosition += mParent->GetWorldPosition(updateBufferIndex);
430 mWorldPosition.Set( updateBufferIndex, finalPosition );
433 case USE_PARENT_POSITION_PLUS_LOCAL_POSITION :
435 // copy parents position plus local transform
436 mWorldPosition.Set( updateBufferIndex, mParent->GetWorldPosition(updateBufferIndex) + mPosition[updateBufferIndex] );
439 case USE_PARENT_POSITION :
441 // copy parents position
442 mWorldPosition.Set( updateBufferIndex, mParent->GetWorldPosition(updateBufferIndex) );
445 case DONT_INHERIT_POSITION :
447 // use local position as world position
448 mWorldPosition.Set( updateBufferIndex, mPosition[updateBufferIndex] );
455 * Copies the previous inherited position, if this changed in the previous frame.
456 * This method should be called instead of InheritWorldPosition i.e. if the inherited position
457 * does not need to be recalculated in the current frame.
458 * @param[in] updateBufferIndex The current update buffer index.
460 void CopyPreviousWorldPosition( BufferIndex updateBufferIndex )
462 mWorldPosition.CopyPrevious( updateBufferIndex );
466 * Retrieve the position of the node derived from the position of all its parents.
467 * @return The world position.
469 const Vector3& GetWorldPosition( BufferIndex bufferIndex ) const
471 return mWorldPosition[bufferIndex];
475 * Set the position inheritance mode.
476 * @see Dali::Actor::PositionInheritanceMode
477 * @param[in] mode The new position inheritance mode.
479 void SetPositionInheritanceMode( PositionInheritanceMode mode )
481 mPositionInheritanceMode = mode;
483 SetDirtyFlag(TransformFlag);
487 * @return The position inheritance mode.
489 PositionInheritanceMode GetPositionInheritanceMode() const
491 return mPositionInheritanceMode;
495 * Retrieve the local rotation of the node, relative to its parent.
496 * @param[in] bufferIndex The buffer to read from.
497 * @return The local rotation.
499 const Quaternion& GetRotation(BufferIndex bufferIndex) const
501 return mRotation[bufferIndex];
505 * Sets both the local & base rotations of the node.
506 * @param[in] updateBufferIndex The current update buffer index.
507 * @param[in] rotation The new local & base rotation.
509 void BakeRotation(BufferIndex updateBufferIndex, const Quaternion& rotation)
511 mRotation.Bake( updateBufferIndex, rotation );
515 * Sets the rotation of the node derived from the rotation of all its parents.
516 * @param[in] updateBufferIndex The current update buffer index.
517 * @param[in] rotation The world rotation.
519 void SetWorldRotation( BufferIndex updateBufferIndex, const Quaternion& rotation )
521 mWorldRotation.Set( updateBufferIndex, rotation );
525 * Sets the rotation of the node derived from the rotation of all its parents.
526 * This method should only be called when the parents world rotation is up-to-date.
527 * @pre The node has a parent.
528 * @param[in] updateBufferIndex The current update buffer index.
530 void InheritWorldRotation( BufferIndex updateBufferIndex )
532 DALI_ASSERT_DEBUG(mParent != NULL);
534 const Quaternion& localRotation = mRotation[updateBufferIndex];
536 if(localRotation.IsIdentity())
538 mWorldRotation.Set( updateBufferIndex, mParent->GetWorldRotation(updateBufferIndex) );
542 Quaternion finalRotation( mParent->GetWorldRotation(updateBufferIndex) );
543 finalRotation *= localRotation;
544 mWorldRotation.Set( updateBufferIndex, finalRotation );
549 * Copies the previous inherited rotation, if this changed in the previous frame.
550 * This method should be called instead of InheritWorldRotation i.e. if the inherited rotation
551 * does not need to be recalculated in the current frame.
552 * @param[in] updateBufferIndex The current update buffer index.
554 void CopyPreviousWorldRotation( BufferIndex updateBufferIndex )
556 mWorldRotation.CopyPrevious( updateBufferIndex );
560 * Retrieve the rotation of the node derived from the rotation of all its parents.
561 * @param[in] bufferIndex The buffer to read from.
562 * @return The world rotation.
564 const Quaternion& GetWorldRotation( BufferIndex bufferIndex ) const
566 return mWorldRotation[bufferIndex];
570 * Set whether the Node inherits rotation.
571 * @param[in] inherit True if the parent rotation is inherited.
573 void SetInheritRotation(bool inherit)
575 if (inherit != mInheritRotation)
577 mInheritRotation = inherit;
579 SetDirtyFlag(TransformFlag);
584 * Query whether the node inherits rotation from its parent.
585 * @return True if the parent rotation is inherited.
587 bool IsRotationInherited() const
589 return mInheritRotation;
593 * Set the initial volume of the node. Used for calculating geometry scaling
594 * as the node size is changed when transmitGeometryScaling is set to true.
596 * This property is not animatable.
598 * @param[in] volume The initial volume of this nodes meshes & children
600 void SetInitialVolume( const Vector3& volume)
602 mInitialVolume = volume;
603 SetDirtyFlag(SizeFlag);
607 * Get the initial volume. Used for calculating geometry scaling
608 * when TransmitGeometryScaling is true (i.e., the scaling is baked
609 * into the node tranform)
611 * @return The initial volume of this node and children.
613 Vector3 GetInitialVolume()
615 return mInitialVolume;
619 * Sets whether the geometry scaling should be applied to the node
620 * (In which case, set the initial scale using SetInitialVolume()).
622 * If it is applied to the node, then the attachments are not scaled,
623 * as the scaling is then already baked into the node transform.
625 * @param[in] transmitGeometryScaling true if scaling is to be applied
628 void SetTransmitGeometryScaling(bool transmitGeometryScaling)
630 mTransmitGeometryScaling = transmitGeometryScaling;
631 SetDirtyFlag(SizeFlag);
635 * Find out whether the node allows geometry scaling to be transmitted to its children.
636 * @return true if transmitted.
638 bool GetTransmitGeometryScaling() const
640 return mTransmitGeometryScaling;
644 * Retrieve the local scale of the node, relative to its parent.
645 * @param[in] bufferIndex The buffer to read from.
646 * @return The local scale.
648 const Vector3& GetScale(BufferIndex bufferIndex) const
650 return mScale[bufferIndex];
654 * Sets the scale of the node derived from the scale of all its parents and a pre-scale
655 * @param[in] updateBufferIndex The current update buffer index.
656 * @param[in] scale The world scale.
658 void SetWorldScale(BufferIndex updateBufferIndex, const Vector3& scale)
660 mWorldScale.Set( updateBufferIndex, mGeometryScale * scale );
664 * Sets the scale of the node derived from the scale of all its parents and a pre-scale.
665 * This method should only be called when the parents world scale is up-to-date.
666 * @pre The node has a parent.
667 * @param[in] updateBufferIndex The current update buffer index.
669 void InheritWorldScale(BufferIndex updateBufferIndex)
671 DALI_ASSERT_DEBUG(mParent != NULL);
673 mWorldScale.Set( updateBufferIndex, mParent->GetWorldScale(updateBufferIndex) * mGeometryScale * mScale[updateBufferIndex] );
677 * Copies the previous inherited scale, if this changed in the previous frame.
678 * This method should be called instead of InheritWorldScale i.e. if the inherited scale
679 * does not need to be recalculated in the current frame.
680 * @param[in] updateBufferIndex The current update buffer index.
682 void CopyPreviousWorldScale( BufferIndex updateBufferIndex )
684 mWorldScale.CopyPrevious( updateBufferIndex );
688 * Retrieve the scale of the node derived from the scale of all its parents.
689 * @param[in] bufferIndex The buffer to read from.
690 * @return The world scale.
692 const Vector3& GetWorldScale( BufferIndex bufferIndex ) const
694 return mWorldScale[bufferIndex];
698 * Set whether the Node inherits scale.
699 * @param inherit True if the Node inherits scale.
701 void SetInheritScale( bool inherit )
703 if( inherit != mInheritScale )
705 mInheritScale = inherit;
707 SetDirtyFlag( TransformFlag );
712 * Query whether the Node inherits scale.
713 * @return if scale is inherited
715 bool IsScaleInherited() const
717 return mInheritScale;
721 * Sets a geometry scale, calculated when TransmitGeometryScaling is true.
722 * Must only be used from render thread.
723 * @param[in] geometryScale The geometry scale value
725 void SetGeometryScale(Vector3 geometryScale)
727 mGeometryScale = geometryScale;
729 SetDirtyFlag( TransformFlag );
733 * Retrieve the geometry scale, calculated when TransmitGeometryScaling is true.
734 * @return The geometry scale value.
736 const Vector3& GetGeometryScale() const
738 return mGeometryScale;
742 * Retrieve the visibility of the node.
743 * @param[in] bufferIndex The buffer to read from.
744 * @return True if the node is visible.
746 bool IsVisible(BufferIndex bufferIndex) const
748 return mVisible[bufferIndex];
752 * Retrieves whether a node is fully visible.
753 * A node is fully visible if is visible and all its ancestors are visible.
754 * @param[in] updateBufferIndex The current update buffer index.
755 * @return True if the node is fully visible.
757 bool IsFullyVisible( BufferIndex updateBufferIndex ) const;
760 * Retrieve the opacity of the node.
761 * @param[in] bufferIndex The buffer to read from.
762 * @return The opacity.
764 float GetOpacity(BufferIndex bufferIndex) const
766 return mColor[bufferIndex].a;
770 * Retrieve the color of the node.
771 * @param[in] bufferIndex The buffer to read from.
774 const Vector4& GetColor(BufferIndex bufferIndex) const
776 return mColor[bufferIndex];
780 * Sets the color of the node derived from the color of all its parents.
781 * @param[in] color The world color.
782 * @param[in] updateBufferIndex The current update buffer index.
784 void SetWorldColor(const Vector4& color, BufferIndex updateBufferIndex)
786 mWorldColor.Set( updateBufferIndex, color );
790 * Sets the color of the node derived from the color of all its parents.
791 * This method should only be called when the parents world color is up-to-date.
792 * @pre The node has a parent.
793 * @param[in] updateBufferIndex The current update buffer index.
795 void InheritWorldColor( BufferIndex updateBufferIndex )
797 DALI_ASSERT_DEBUG(mParent != NULL);
800 if( mColorMode == USE_OWN_MULTIPLY_PARENT_ALPHA )
802 const Vector4& ownColor = mColor[updateBufferIndex];
803 mWorldColor.Set( updateBufferIndex, ownColor.r, ownColor.g, ownColor.b, ownColor.a * mParent->GetWorldColor(updateBufferIndex).a );
805 else if( mColorMode == USE_OWN_MULTIPLY_PARENT_COLOR )
807 mWorldColor.Set( updateBufferIndex, mParent->GetWorldColor(updateBufferIndex) * mColor[updateBufferIndex] );
809 else if( mColorMode == USE_PARENT_COLOR )
811 mWorldColor.Set( updateBufferIndex, mParent->GetWorldColor(updateBufferIndex) );
813 else // USE_OWN_COLOR
815 mWorldColor.Set( updateBufferIndex, mColor[updateBufferIndex] );
820 * Copies the previous inherited scale, if this changed in the previous frame.
821 * This method should be called instead of InheritWorldScale i.e. if the inherited scale
822 * does not need to be recalculated in the current frame.
823 * @param[in] updateBufferIndex The current update buffer index.
825 void CopyPreviousWorldColor( BufferIndex updateBufferIndex )
827 mWorldColor.CopyPrevious( updateBufferIndex );
831 * Retrieve the color of the node, possibly derived from the color
832 * of all its parents, depending on the value of mColorMode.
833 * @param[in] bufferIndex The buffer to read from.
834 * @return The world color.
836 const Vector4& GetWorldColor(BufferIndex bufferIndex) const
838 return mWorldColor[bufferIndex];
842 * Set the color mode. This specifies whether the Node uses its own color,
843 * or inherits its parent color.
844 * @param[in] colorMode The new color mode.
846 void SetColorMode(ColorMode colorMode)
848 mColorMode = colorMode;
850 SetDirtyFlag(ColorFlag);
854 * Retrieve the color mode.
855 * @return The color mode.
857 ColorMode GetColorMode() const
863 * Retrieve the size of the node.
864 * @param[in] bufferIndex The buffer to read from.
867 const Vector3& GetSize(BufferIndex bufferIndex) const
869 return mSize[bufferIndex];
873 * Set the world-matrix of a node, with scale + rotation + translation.
874 * Scale and rotation are centered at the origin.
875 * Translation is applied independently of the scale or rotatation axis.
876 * @param[in] updateBufferIndex The current update buffer index.
877 * @param[in] scale The scale.
878 * @param[in] rotation The rotation.
879 * @param[in] translation The translation.
881 void SetWorldMatrix( BufferIndex updateBufferIndex, const Vector3& scale, const Quaternion& rotation, const Vector3& translation )
883 mWorldMatrix.Get( updateBufferIndex ).SetTransformComponents( scale, rotation, translation );
884 mWorldMatrix.SetDirty( updateBufferIndex );
888 * Retrieve the cached world-matrix of a node.
889 * @param[in] bufferIndex The buffer to read from.
890 * @return The world-matrix.
892 const Matrix& GetWorldMatrix( BufferIndex bufferIndex ) const
894 return mWorldMatrix[ bufferIndex ];
898 * Copy previous frames world matrix
899 * @param[in] updateBufferIndex The current update buffer index.
901 void CopyPreviousWorldMatrix( BufferIndex updateBufferIndex )
903 mWorldMatrix.CopyPrevious( updateBufferIndex );
907 * Mark the node as exclusive to a single RenderTask.
908 * @param[in] renderTask The render-task, or NULL if the Node is not exclusive to a single RenderTask.
910 void SetExclusiveRenderTask( RenderTask* renderTask )
912 mExclusiveRenderTask = renderTask;
916 * Query whether the node is exclusive to a single RenderTask.
917 * @return The render-task, or NULL if the Node is not exclusive to a single RenderTask.
919 RenderTask* GetExclusiveRenderTask() const
921 return mExclusiveRenderTask;
925 * Set how the Node and its children should be drawn; see Dali::Actor::SetDrawMode() for more details.
926 * @param[in] drawMode The new draw-mode to use.
928 void SetDrawMode( const DrawMode::Type& drawMode )
930 mDrawMode = drawMode;
934 * Returns whether node is an overlay or not.
935 * @return True if node is an overlay, false otherwise.
937 DrawMode::Type GetDrawMode() const
943 * Equality operator, checks for identity, not values.
946 bool operator==( const Node* rhs ) const
956 * Set the inhibit local transform flag.@n
957 * Setting this flag will stop the node's local transform (position, scale and orientation)
958 * being applied on top of its parents transformation.
959 * @param[in] flag When true, local transformation is inhibited when calculating the world matrix.
961 void SetInhibitLocalTransform( bool flag )
963 SetDirtyFlag( TransformFlag );
964 mInhibitLocalTransform = flag;
968 * Get the inhibit local transform flag.@n
969 * See @ref SetInhibitLocalTransform
970 * @result A flag, when true, local transformation is inhibited when calculating the world matrix.
972 bool GetInhibitLocalTransform() const
974 return mInhibitLocalTransform;
980 * Set the parent of a Node.
981 * @param[in] parentNode the new parent.
983 void SetParent(Node& parentNode);
986 * Protected constructor; See also Node::New()
990 private: // from RenderDataProvider
993 * @copydoc RenderDataProvider::GetModelMatrix
995 virtual const Matrix& GetModelMatrix( unsigned int bufferId )
997 return GetWorldMatrix( bufferId );
1001 * @copydoc RenderDataProvider::GetRenderColor
1003 virtual const Vector4& GetRenderColor( unsigned int bufferId )
1005 return GetWorldColor( bufferId );
1014 Node& operator=(const Node& rhs);
1017 * @copydoc Dali::Internal::SceneGraph::PropertyOwner::ResetDefaultProperties()
1019 virtual void ResetDefaultProperties( BufferIndex updateBufferIndex );
1022 * Recursive helper to disconnect a Node and its children.
1023 * Disconnected Nodes have no parent or children.
1024 * @param[in] updateBufferIndex The current update buffer index.
1025 * @param[in] connectedNodes Disconnected Node attachments should be removed from here.
1026 * @param[in] disconnectedNodes Disconnected Node attachments should be added here.
1028 void RecursiveDisconnectFromSceneGraph( BufferIndex updateBufferIndex, std::set<Node*>& connectedNodes, std::set<Node*>& disconnectedNodes );
1030 public: // Default properties
1032 PropertyVector3 mParentOrigin; ///< Local transform; the position is relative to this. Sets the TransformFlag dirty when changed
1033 PropertyVector3 mAnchorPoint; ///< Local transform; local center of rotation. Sets the TransformFlag dirty when changed
1035 AnimatableProperty<Vector3> mSize; ///< Size is provided for layouting
1036 AnimatableProperty<Vector3> mPosition; ///< Local transform; distance between parent-origin & anchor-point
1037 AnimatableProperty<Quaternion> mRotation; ///< Local transform; rotation relative to parent node
1038 AnimatableProperty<Vector3> mScale; ///< Local transform; scale relative to parent node
1039 AnimatableProperty<bool> mVisible; ///< Visibility can be inherited from the Node hierachy
1040 AnimatableProperty<Vector4> mColor; ///< Color can be inherited from the Node hierarchy
1042 // Inherited properties; read-only from public API
1044 InheritedProperty<Vector3> mWorldPosition; ///< Full inherited position
1045 InheritedProperty<Quaternion> mWorldRotation; ///< Full inherited rotation
1046 InheritedProperty<Vector3> mWorldScale; ///< Full inherited scale
1047 InheritedProperty<Matrix> mWorldMatrix; ///< Full inherited world matrix
1048 InheritedColor mWorldColor; ///< Full inherited color
1052 Node* mParent; ///< Pointer to parent node (a child is owned by its parent)
1053 RenderTask* mExclusiveRenderTask; ///< Nodes can be marked as exclusive to a single RenderTask
1055 NodeAttachmentOwner mAttachment; ///< Optional owned attachment
1056 NodeContainer mChildren; ///< Container of children; not owned
1058 Vector3 mGeometryScale; ///< Applied before calculating world transform.
1059 Vector3 mInitialVolume; ///< Initial volume... TODO - need a better name
1061 // flags, compressed to bitfield
1062 int mDirtyFlags:10; ///< A composite set of flags for each of the Node properties
1064 bool mIsRoot:1; ///< True if the node cannot have a parent
1065 bool mInheritRotation:1; ///< Whether the parent's rotation should be inherited.
1066 bool mInheritScale:1; ///< Whether the parent's scale should be inherited.
1067 bool mTransmitGeometryScaling:1; ///< Whether geometry scaling should be applied to world transform.
1068 bool mInhibitLocalTransform:1; ///< whether local transform should be applied.
1069 bool mIsActive:1; ///< When a Node is marked "active" it has been disconnected, and its properties have not been modified
1071 DrawMode::Type mDrawMode:2; ///< How the Node and its children should be drawn
1072 PositionInheritanceMode mPositionInheritanceMode:2;///< Determines how position is inherited, 2 bits is enough
1073 ColorMode mColorMode:2; ///< Determines whether mWorldColor is inherited, 2 bits is enough
1075 // Changes scope, should be at end of class
1076 DALI_LOG_OBJECT_STRING_DECLARATION;
1079 // Messages for Node
1081 inline void SetInheritRotationMessage( EventToUpdate& eventToUpdate, const Node& node, bool inherit )
1083 typedef MessageValue1< Node, bool > LocalType;
1085 // Reserve some memory inside the message queue
1086 unsigned int* slot = eventToUpdate.ReserveMessageSlot( sizeof( LocalType ) );
1088 // Construct message in the message queue memory; note that delete should not be called on the return value
1089 new (slot) LocalType( &node, &Node::SetInheritRotation, inherit );
1092 inline void SetInitialVolumeMessage( EventToUpdate& eventToUpdate, const Node& node, const Vector3& initialVolume )
1094 typedef MessageValue1< Node, Vector3 > LocalType;
1096 // Reserve some memory inside the message queue
1097 unsigned int* slot = eventToUpdate.ReserveMessageSlot( sizeof( LocalType ) );
1099 // Construct message in the message queue memory; note that delete should not be called on the return value
1100 new (slot) LocalType( &node, &Node::SetInitialVolume, initialVolume );
1103 inline void SetTransmitGeometryScalingMessage( EventToUpdate& eventToUpdate, const Node& node, bool transmitGeometryScaling )
1105 typedef MessageValue1< Node, bool > LocalType;
1107 // Reserve some memory inside the message queue
1108 unsigned int* slot = eventToUpdate.ReserveMessageSlot( sizeof( LocalType ) );
1110 // Construct message in the message queue memory; note that delete should not be called on the return value
1111 new (slot) LocalType( &node, &Node::SetTransmitGeometryScaling, transmitGeometryScaling );
1114 inline void SetParentOriginMessage( EventToUpdate& eventToUpdate, const Node& node, const Vector3& origin )
1116 typedef MessageValue1< Node, Vector3 > LocalType;
1118 // Reserve some memory inside the message queue
1119 unsigned int* slot = eventToUpdate.ReserveMessageSlot( sizeof( LocalType ) );
1121 // Construct message in the message queue memory; note that delete should not be called on the return value
1122 new (slot) LocalType( &node, &Node::SetParentOrigin, origin );
1125 inline void SetAnchorPointMessage( EventToUpdate& eventToUpdate, const Node& node, const Vector3& anchor )
1127 typedef MessageValue1< Node, Vector3 > LocalType;
1129 // Reserve some memory inside the message queue
1130 unsigned int* slot = eventToUpdate.ReserveMessageSlot( sizeof( LocalType ) );
1132 // Construct message in the message queue memory; note that delete should not be called on the return value
1133 new (slot) LocalType( &node, &Node::SetAnchorPoint, anchor );
1136 inline void SetPositionInheritanceModeMessage( EventToUpdate& eventToUpdate, const Node& node, PositionInheritanceMode mode )
1138 typedef MessageValue1< Node, PositionInheritanceMode > LocalType;
1140 // Reserve some memory inside the message queue
1141 unsigned int* slot = eventToUpdate.ReserveMessageSlot( sizeof( LocalType ) );
1143 // Construct message in the message queue memory; note that delete should not be called on the return value
1144 new (slot) LocalType( &node, &Node::SetPositionInheritanceMode, mode );
1147 inline void SetInheritScaleMessage( EventToUpdate& eventToUpdate, const Node& node, bool inherit )
1149 typedef MessageValue1< Node, bool > LocalType;
1151 // Reserve some memory inside the message queue
1152 unsigned int* slot = eventToUpdate.ReserveMessageSlot( sizeof( LocalType ) );
1154 // Construct message in the message queue memory; note that delete should not be called on the return value
1155 new (slot) LocalType( &node, &Node::SetInheritScale, inherit );
1158 inline void SetColorModeMessage( EventToUpdate& eventToUpdate, const Node& node, ColorMode colorMode )
1160 typedef MessageValue1< Node, ColorMode > LocalType;
1162 // Reserve some memory inside the message queue
1163 unsigned int* slot = eventToUpdate.ReserveMessageSlot( sizeof( LocalType ) );
1165 // Construct message in the message queue memory; note that delete should not be called on the return value
1166 new (slot) LocalType( &node, &Node::SetColorMode, colorMode );
1169 inline void SetDrawModeMessage( EventToUpdate& eventToUpdate, const Node& node, DrawMode::Type drawMode )
1171 typedef MessageValue1< Node, DrawMode::Type > LocalType;
1173 // Reserve some memory inside the message queue
1174 unsigned int* slot = eventToUpdate.ReserveMessageSlot( sizeof( LocalType ) );
1176 // Construct message in the message queue memory; note that delete should not be called on the return value
1177 new (slot) LocalType( &node, &Node::SetDrawMode, drawMode );
1180 } // namespace SceneGraph
1182 } // namespace Internal
1186 #endif // __DALI_INTERNAL_SCENE_GRAPH_NODE_H_