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/common/set-wrapper.h>
25 #include <dali/public-api/math/quaternion.h>
26 #include <dali/public-api/math/math-utils.h>
27 #include <dali/public-api/math/vector3.h>
28 #include <dali/internal/common/message.h>
29 #include <dali/internal/common/event-to-update.h>
30 #include <dali/internal/update/common/animatable-property.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 > {};
49 template <> struct ParameterType< SizeMode > : public BasicType< SizeMode > {};
61 * Flag whether property has changed, during the Update phase.
63 enum NodePropertyFlags
66 TransformFlag = 0x001,
71 SortModifierFlag = 0x020,
72 ChildDeletedFlag = 0x040
75 static const int AllFlags = ( ChildDeletedFlag << 1 ) - 1; // all the flags
78 * Size is not inherited.
79 * VisibleFlag is inherited so that attachments can be synchronized with nodes after they become visible
81 static const int InheritedDirtyFlags = TransformFlag | VisibleFlag | ColorFlag | OverlayFlag;
83 // Flags which require the scene renderable lists to be updated
84 static const int RenderableUpdateFlags = TransformFlag | SortModifierFlag | ChildDeletedFlag;
87 * Node is the base class for all nodes in the Scene Graph.
88 * Each node provides a transformation which applies to the node and its children.
89 * Node data is double-buffered. This allows an update thread to modify node data, without interferring
90 * with another thread reading the values from the previous update traversal.
92 class Node : public PropertyOwner, public RenderDataProvider
97 static const PositionInheritanceMode DEFAULT_POSITION_INHERITANCE_MODE;
98 static const ColorMode DEFAULT_COLOR_MODE;
99 static const SizeMode DEFAULT_SIZE_MODE;
104 * Construct a new Node.
114 * When a Node is marked "active" it has been disconnected, but its properties have been modified.
115 * @note An inactive Node will be skipped during the UpdateManager ResetProperties stage.
116 * @param[in] isActive True if the Node is active.
118 void SetActive( bool isActive )
120 mIsActive = isActive;
124 * Query whether the Node is active.
125 * @return True if the Node is active.
127 bool IsActive() const
133 * Called during UpdateManager::DestroyNode shortly before Node is destroyed.
140 * Query whether the node is a layer.
141 * @return True if the node is a layer.
145 return (GetLayer() != NULL);
149 * Convert a node to a layer.
150 * @return A pointer to the layer, or NULL.
152 virtual Layer* GetLayer()
160 * Attach an object to this Node; This should only be done by UpdateManager::AttachToNode.
161 * @pre The Node does not already have an attachment.
162 * @param[in] attachment The object to attach.
164 void Attach( NodeAttachment& attachment );
167 * Query the node if it has an attachment.
168 * @return True if it has an attachment.
170 bool HasAttachment() const
176 * Retreive the object attached to this node.
177 * @return The attachment.
179 NodeAttachment& GetAttachment() const
184 // Containment methods
187 * Query whether a node is the root node. Root nodes cannot have a parent node.
188 * A node becomes a root node, when it is installed by UpdateManager.
189 * @return True if the node is a root node.
197 * Set whether a node is the root node. Root nodes cannot have a parent node.
198 * This method should only be called by UpdateManager.
199 * @pre When isRoot is true, the node must not have a parent.
200 * @param[in] isRoot Whether the node is now a root node.
202 void SetRoot(bool isRoot);
205 * Retrieve the parent of a Node.
206 * @return The parent node, or NULL if the Node has not been added to the scene-graph.
214 * Retrieve the parent of a Node.
215 * @return The parent node, or NULL if the Node has not been added to the scene-graph.
217 const Node* GetParent() const
223 * Connect a node to the scene-graph.
224 * @pre A node cannot be added to itself.
225 * @pre The parent node is connected to the scene-graph.
226 * @pre The childNode does not already have a parent.
227 * @pre The childNode is not a root node.
228 * @param[in] childNode The child to add.
229 * @param[in] index to insert at, if not supplied or -1 it will be appended
232 void ConnectChild( Node* childNode, int index = -1);
235 * Disconnect a child (& its children) from the scene-graph.
236 * @pre childNode is a child of this Node.
237 * @param[in] updateBufferIndex The current update buffer index.
238 * @param[in] childNode The node to disconnect.
239 * @param[in] connectedNodes Disconnected Node attachments should be removed from here.
240 * @param[in] disconnectedNodes Disconnected Node attachments should be added here.
242 void DisconnectChild( BufferIndex updateBufferIndex, Node& childNode, std::set<Node*>& connectedNodes, std::set<Node*>& disconnectedNodes );
245 * Retrieve the children a Node.
246 * @return The container of children.
248 const NodeContainer& GetChildren() const
254 * Retrieve the children a Node.
255 * @return The container of children.
257 NodeContainer& GetChildren()
265 * Flag that one of the node values has changed in the current frame.
266 * @param[in] flag The flag to set.
268 void SetDirtyFlag(NodePropertyFlags flag)
274 * Flag that all of the node values are dirty.
276 void SetAllDirtyFlags()
278 mDirtyFlags = AllFlags;
282 * Query whether a node is dirty.
283 * @return The dirty flags
285 int GetDirtyFlags() const;
288 * Query whether a node is clean.
289 * @return True if the node is clean.
293 return ( NothingFlag == GetDirtyFlags() );
297 * Retrieve the parent-origin of the node.
298 * @return The parent-origin.
300 const Vector3& GetParentOrigin() const
302 return mParentOrigin.mValue;
306 * Sets both the local & base parent-origins of the node.
307 * @param[in] origin The new local & base parent-origins.
309 void SetParentOrigin(const Vector3& origin)
311 mParentOrigin.mValue = origin;
312 mParentOrigin.OnSet();
316 * Retrieve the anchor-point of the node.
317 * @return The anchor-point.
319 const Vector3& GetAnchorPoint() const
321 return mAnchorPoint.mValue;
325 * Sets both the local & base anchor-points of the node.
326 * @param[in] anchor The new local & base anchor-points.
328 void SetAnchorPoint(const Vector3& anchor)
330 mAnchorPoint.mValue = anchor;
331 mAnchorPoint.OnSet();
335 * Retrieve the local position of the node, relative to its parent.
336 * @param[in] bufferIndex The buffer to read from.
337 * @return The local position.
339 const Vector3& GetPosition(BufferIndex bufferIndex) const
341 return mPosition[bufferIndex];
345 * Sets both the local & base positions of the node.
346 * @param[in] updateBufferIndex The current update buffer index.
347 * @param[in] position The new local & base position.
349 void BakePosition(BufferIndex updateBufferIndex, const Vector3& position)
351 mPosition.Bake( updateBufferIndex, position );
355 * Sets the world of the node derived from the position of all its parents.
356 * @param[in] updateBufferIndex The current update buffer index.
357 * @param[in] position The world position.
359 void SetWorldPosition( BufferIndex updateBufferIndex, const Vector3& position )
361 mWorldPosition.Set( updateBufferIndex, position );
365 * Sets the position of the node derived from the position of all its parents.
366 * This method should only be called when the parent's world position is up-to-date.
367 * With a non-central anchor-point, the local rotation and scale affects the world position.
368 * Therefore the world rotation & scale must be updated before the world position.
369 * @pre The node has a parent.
370 * @param[in] updateBufferIndex The current update buffer index.
372 void InheritWorldPosition(BufferIndex updateBufferIndex)
374 DALI_ASSERT_DEBUG(mParent != NULL);
376 switch( mPositionInheritanceMode )
378 case INHERIT_PARENT_POSITION : ///@see Dali::PositionInheritanceMode for how these modes are expected to work
380 Vector3 finalPosition(-0.5f, -0.5f, -0.5f);
382 finalPosition += mParentOrigin.mValue;
383 finalPosition *= mParent->GetSize(updateBufferIndex);
384 finalPosition += mPosition[updateBufferIndex];
385 finalPosition *= mParent->GetWorldScale(updateBufferIndex);
386 const Quaternion& parentWorldRotation = mParent->GetWorldRotation(updateBufferIndex);
387 if(!parentWorldRotation.IsIdentity())
389 finalPosition *= parentWorldRotation;
392 // check if a node needs to be offsetted locally (only applies when AnchorPoint is not central)
393 // dont use operator== as that does a slower comparison (and involves function calls)
394 Vector3 localOffset(0.5f, 0.5f, 0.5f); // AnchorPoint::CENTER
395 localOffset -= mAnchorPoint.mValue;
397 if( ( fabsf( localOffset.x ) >= Math::MACHINE_EPSILON_0 ) ||
398 ( fabsf( localOffset.y ) >= Math::MACHINE_EPSILON_0 ) ||
399 ( fabsf( localOffset.z ) >= Math::MACHINE_EPSILON_0 ) )
401 localOffset *= mSize[updateBufferIndex];
403 Vector3 scale = mWorldScale[updateBufferIndex];
404 if(GetTransmitGeometryScaling())
406 // Remove geometry scaling to get back to actor scale
407 scale /= mGeometryScale;
409 // Also pick up sign of local scale
410 if (mScale[updateBufferIndex].x < 0.0f)
414 if (mScale[updateBufferIndex].y < 0.0f)
418 if (mScale[updateBufferIndex].z < 0.0f)
423 // If the anchor-point is not central, then position is affected by the local rotation & scale
424 localOffset *= scale;
425 const Quaternion& localWorldRotation = mWorldRotation[updateBufferIndex];
426 if(!localWorldRotation.IsIdentity())
428 localOffset *= localWorldRotation;
430 finalPosition += localOffset;
433 finalPosition += mParent->GetWorldPosition(updateBufferIndex);
434 mWorldPosition.Set( updateBufferIndex, finalPosition );
437 case USE_PARENT_POSITION_PLUS_LOCAL_POSITION :
439 // copy parents position plus local transform
440 mWorldPosition.Set( updateBufferIndex, mParent->GetWorldPosition(updateBufferIndex) + mPosition[updateBufferIndex] );
443 case USE_PARENT_POSITION :
445 // copy parents position
446 mWorldPosition.Set( updateBufferIndex, mParent->GetWorldPosition(updateBufferIndex) );
449 case DONT_INHERIT_POSITION :
451 // use local position as world position
452 mWorldPosition.Set( updateBufferIndex, mPosition[updateBufferIndex] );
459 * Copies the previous inherited position, if this changed in the previous frame.
460 * This method should be called instead of InheritWorldPosition i.e. if the inherited position
461 * does not need to be recalculated in the current frame.
462 * @param[in] updateBufferIndex The current update buffer index.
464 void CopyPreviousWorldPosition( BufferIndex updateBufferIndex )
466 mWorldPosition.CopyPrevious( updateBufferIndex );
470 * Retrieve the position of the node derived from the position of all its parents.
471 * @return The world position.
473 const Vector3& GetWorldPosition( BufferIndex bufferIndex ) const
475 return mWorldPosition[bufferIndex];
479 * Set the position inheritance mode.
480 * @see Dali::Actor::PositionInheritanceMode
481 * @param[in] mode The new position inheritance mode.
483 void SetPositionInheritanceMode( PositionInheritanceMode mode )
485 mPositionInheritanceMode = mode;
487 SetDirtyFlag(TransformFlag);
491 * @return The position inheritance mode.
493 PositionInheritanceMode GetPositionInheritanceMode() const
495 return mPositionInheritanceMode;
499 * Retrieve the local rotation of the node, relative to its parent.
500 * @param[in] bufferIndex The buffer to read from.
501 * @return The local rotation.
503 const Quaternion& GetRotation(BufferIndex bufferIndex) const
505 return mRotation[bufferIndex];
509 * Sets both the local & base rotations of the node.
510 * @param[in] updateBufferIndex The current update buffer index.
511 * @param[in] rotation The new local & base rotation.
513 void BakeRotation(BufferIndex updateBufferIndex, const Quaternion& rotation)
515 mRotation.Bake( updateBufferIndex, rotation );
519 * Sets the rotation of the node derived from the rotation of all its parents.
520 * @param[in] updateBufferIndex The current update buffer index.
521 * @param[in] rotation The world rotation.
523 void SetWorldRotation( BufferIndex updateBufferIndex, const Quaternion& rotation )
525 mWorldRotation.Set( updateBufferIndex, rotation );
529 * Sets the rotation of the node derived from the rotation of all its parents.
530 * This method should only be called when the parents world rotation is up-to-date.
531 * @pre The node has a parent.
532 * @param[in] updateBufferIndex The current update buffer index.
534 void InheritWorldRotation( BufferIndex updateBufferIndex )
536 DALI_ASSERT_DEBUG(mParent != NULL);
538 const Quaternion& localRotation = mRotation[updateBufferIndex];
540 if(localRotation.IsIdentity())
542 mWorldRotation.Set( updateBufferIndex, mParent->GetWorldRotation(updateBufferIndex) );
546 Quaternion finalRotation( mParent->GetWorldRotation(updateBufferIndex) );
547 finalRotation *= localRotation;
548 mWorldRotation.Set( updateBufferIndex, finalRotation );
553 * Copies the previous inherited rotation, if this changed in the previous frame.
554 * This method should be called instead of InheritWorldRotation i.e. if the inherited rotation
555 * does not need to be recalculated in the current frame.
556 * @param[in] updateBufferIndex The current update buffer index.
558 void CopyPreviousWorldRotation( BufferIndex updateBufferIndex )
560 mWorldRotation.CopyPrevious( updateBufferIndex );
564 * Retrieve the rotation of the node derived from the rotation of all its parents.
565 * @param[in] bufferIndex The buffer to read from.
566 * @return The world rotation.
568 const Quaternion& GetWorldRotation( BufferIndex bufferIndex ) const
570 return mWorldRotation[bufferIndex];
574 * Set whether the Node inherits rotation.
575 * @param[in] inherit True if the parent rotation is inherited.
577 void SetInheritRotation(bool inherit)
579 if (inherit != mInheritRotation)
581 mInheritRotation = inherit;
583 SetDirtyFlag(TransformFlag);
588 * Query whether the node inherits rotation from its parent.
589 * @return True if the parent rotation is inherited.
591 bool IsRotationInherited() const
593 return mInheritRotation;
597 * @brief Defines how a child actor's size is affected by its parent's size.
598 * @param[in] mode The size relative to parent mode to use.
600 void SetSizeMode( SizeMode mode )
602 if ( mode != mSizeMode )
606 SetDirtyFlag( TransformFlag );
611 * Query how the child actor's size is affected by its parent's size.
612 * @return The size relative to parent mode in use.
614 SizeMode GetSizeMode() const
620 * Sets the factor of the parents size used for the child actor.
621 * Note: Only used for certain SizeModes.
622 * @param[in] factor The vector to multiply the parents size by to get the childs size.
624 void SetSizeModeFactor( const Vector3& factor )
626 mSizeModeFactor = factor;
628 SetDirtyFlag( TransformFlag );
632 * Gets the factor of the parents size used for the child actor.
633 * Note: Only used for certain SizeModes.
634 * @return The vector being used to multiply the parents size by to get the childs size.
636 const Vector3& GetSizeModeFactor() const
638 return mSizeModeFactor;
642 * Set the initial volume of the node. Used for calculating geometry scaling
643 * as the node size is changed when transmitGeometryScaling is set to true.
645 * This property is not animatable.
647 * @param[in] volume The initial volume of this nodes meshes & children
649 void SetInitialVolume( const Vector3& volume )
651 mInitialVolume = volume;
652 SetDirtyFlag(SizeFlag);
656 * Get the initial volume. Used for calculating geometry scaling
657 * when TransmitGeometryScaling is true (i.e., the scaling is baked
658 * into the node tranform)
660 * @return The initial volume of this node and children.
662 Vector3 GetInitialVolume()
664 return mInitialVolume;
668 * Sets whether the geometry scaling should be applied to the node
669 * (In which case, set the initial scale using SetInitialVolume()).
671 * If it is applied to the node, then the attachments are not scaled,
672 * as the scaling is then already baked into the node transform.
674 * @param[in] transmitGeometryScaling true if scaling is to be applied
677 void SetTransmitGeometryScaling(bool transmitGeometryScaling)
679 mTransmitGeometryScaling = transmitGeometryScaling;
680 SetDirtyFlag(SizeFlag);
684 * Find out whether the node allows geometry scaling to be transmitted to its children.
685 * @return true if transmitted.
687 bool GetTransmitGeometryScaling() const
689 return mTransmitGeometryScaling;
693 * Retrieve the local scale of the node, relative to its parent.
694 * @param[in] bufferIndex The buffer to read from.
695 * @return The local scale.
697 const Vector3& GetScale(BufferIndex bufferIndex) const
699 return mScale[bufferIndex];
703 * Sets the scale of the node derived from the scale of all its parents and a pre-scale
704 * @param[in] updateBufferIndex The current update buffer index.
705 * @param[in] scale The world scale.
707 void SetWorldScale(BufferIndex updateBufferIndex, const Vector3& scale)
709 mWorldScale.Set( updateBufferIndex, mGeometryScale * scale );
713 * Sets the scale of the node derived from the scale of all its parents and a pre-scale.
714 * This method should only be called when the parents world scale is up-to-date.
715 * @pre The node has a parent.
716 * @param[in] updateBufferIndex The current update buffer index.
718 void InheritWorldScale(BufferIndex updateBufferIndex)
720 DALI_ASSERT_DEBUG(mParent != NULL);
722 mWorldScale.Set( updateBufferIndex, mParent->GetWorldScale(updateBufferIndex) * mGeometryScale * mScale[updateBufferIndex] );
726 * Copies the previous inherited scale, if this changed in the previous frame.
727 * This method should be called instead of InheritWorldScale i.e. if the inherited scale
728 * does not need to be recalculated in the current frame.
729 * @param[in] updateBufferIndex The current update buffer index.
731 void CopyPreviousWorldScale( BufferIndex updateBufferIndex )
733 mWorldScale.CopyPrevious( updateBufferIndex );
737 * Retrieve the scale of the node derived from the scale of all its parents.
738 * @param[in] bufferIndex The buffer to read from.
739 * @return The world scale.
741 const Vector3& GetWorldScale( BufferIndex bufferIndex ) const
743 return mWorldScale[bufferIndex];
747 * Set whether the Node inherits scale.
748 * @param inherit True if the Node inherits scale.
750 void SetInheritScale( bool inherit )
752 if( inherit != mInheritScale )
754 mInheritScale = inherit;
756 SetDirtyFlag( TransformFlag );
761 * Query whether the Node inherits scale.
762 * @return if scale is inherited
764 bool IsScaleInherited() const
766 return mInheritScale;
770 * Sets a geometry scale, calculated when TransmitGeometryScaling is true.
771 * Must only be used from render thread.
772 * @param[in] geometryScale The geometry scale value
774 void SetGeometryScale(Vector3 geometryScale)
776 mGeometryScale = geometryScale;
778 SetDirtyFlag( TransformFlag );
782 * Retrieve the geometry scale, calculated when TransmitGeometryScaling is true.
783 * @return The geometry scale value.
785 const Vector3& GetGeometryScale() const
787 return mGeometryScale;
791 * Copies the previously used size, if this changed in the previous frame.
792 * @param[in] updateBufferIndex The current update buffer index.
794 void CopyPreviousSize( BufferIndex updateBufferIndex )
796 SetSize( updateBufferIndex, GetSize( 1u - updateBufferIndex ) );
800 * Retrieve the visibility of the node.
801 * @param[in] bufferIndex The buffer to read from.
802 * @return True if the node is visible.
804 bool IsVisible(BufferIndex bufferIndex) const
806 return mVisible[bufferIndex];
810 * Retrieves whether a node is fully visible.
811 * A node is fully visible if is visible and all its ancestors are visible.
812 * @param[in] updateBufferIndex The current update buffer index.
813 * @return True if the node is fully visible.
815 bool IsFullyVisible( BufferIndex updateBufferIndex ) const;
818 * Retrieve the opacity of the node.
819 * @param[in] bufferIndex The buffer to read from.
820 * @return The opacity.
822 float GetOpacity(BufferIndex bufferIndex) const
824 return mColor[bufferIndex].a;
828 * Retrieve the color of the node.
829 * @param[in] bufferIndex The buffer to read from.
832 const Vector4& GetColor(BufferIndex bufferIndex) const
834 return mColor[bufferIndex];
838 * Sets the color of the node derived from the color of all its parents.
839 * @param[in] color The world color.
840 * @param[in] updateBufferIndex The current update buffer index.
842 void SetWorldColor(const Vector4& color, BufferIndex updateBufferIndex)
844 mWorldColor.Set( updateBufferIndex, color );
848 * Sets the color of the node derived from the color of all its parents.
849 * This method should only be called when the parents world color is up-to-date.
850 * @pre The node has a parent.
851 * @param[in] updateBufferIndex The current update buffer index.
853 void InheritWorldColor( BufferIndex updateBufferIndex )
855 DALI_ASSERT_DEBUG(mParent != NULL);
858 if( mColorMode == USE_OWN_MULTIPLY_PARENT_ALPHA )
860 const Vector4& ownColor = mColor[updateBufferIndex];
861 mWorldColor.Set( updateBufferIndex, ownColor.r, ownColor.g, ownColor.b, ownColor.a * mParent->GetWorldColor(updateBufferIndex).a );
863 else if( mColorMode == USE_OWN_MULTIPLY_PARENT_COLOR )
865 mWorldColor.Set( updateBufferIndex, mParent->GetWorldColor(updateBufferIndex) * mColor[updateBufferIndex] );
867 else if( mColorMode == USE_PARENT_COLOR )
869 mWorldColor.Set( updateBufferIndex, mParent->GetWorldColor(updateBufferIndex) );
871 else // USE_OWN_COLOR
873 mWorldColor.Set( updateBufferIndex, mColor[updateBufferIndex] );
878 * Copies the previous inherited scale, if this changed in the previous frame.
879 * This method should be called instead of InheritWorldScale i.e. if the inherited scale
880 * does not need to be recalculated in the current frame.
881 * @param[in] updateBufferIndex The current update buffer index.
883 void CopyPreviousWorldColor( BufferIndex updateBufferIndex )
885 mWorldColor.CopyPrevious( updateBufferIndex );
889 * Retrieve the color of the node, possibly derived from the color
890 * of all its parents, depending on the value of mColorMode.
891 * @param[in] bufferIndex The buffer to read from.
892 * @return The world color.
894 const Vector4& GetWorldColor(BufferIndex bufferIndex) const
896 return mWorldColor[bufferIndex];
900 * Set the color mode. This specifies whether the Node uses its own color,
901 * or inherits its parent color.
902 * @param[in] colorMode The new color mode.
904 void SetColorMode(ColorMode colorMode)
906 mColorMode = colorMode;
908 SetDirtyFlag(ColorFlag);
912 * Retrieve the color mode.
913 * @return The color mode.
915 ColorMode GetColorMode() const
921 * Sets the size of the node.
922 * @param[in] bufferIndex The buffer to write to.
923 * @param[in] size The size to write.
925 void SetSize( BufferIndex bufferIndex, const Vector3& size )
927 mSize[bufferIndex] = size;
931 * Retrieve the size of the node.
932 * @param[in] bufferIndex The buffer to read from.
935 const Vector3& GetSize(BufferIndex bufferIndex) const
937 return mSize[bufferIndex];
941 * Set the world-matrix of a node, with scale + rotation + translation.
942 * Scale and rotation are centered at the origin.
943 * Translation is applied independently of the scale or rotatation axis.
944 * @param[in] updateBufferIndex The current update buffer index.
945 * @param[in] scale The scale.
946 * @param[in] rotation The rotation.
947 * @param[in] translation The translation.
949 void SetWorldMatrix( BufferIndex updateBufferIndex, const Vector3& scale, const Quaternion& rotation, const Vector3& translation )
951 mWorldMatrix.Get( updateBufferIndex ).SetTransformComponents( scale, rotation, translation );
952 mWorldMatrix.SetDirty( updateBufferIndex );
956 * Retrieve the cached world-matrix of a node.
957 * @param[in] bufferIndex The buffer to read from.
958 * @return The world-matrix.
960 const Matrix& GetWorldMatrix( BufferIndex bufferIndex ) const
962 return mWorldMatrix[ bufferIndex ];
966 * Copy previous frames world matrix
967 * @param[in] updateBufferIndex The current update buffer index.
969 void CopyPreviousWorldMatrix( BufferIndex updateBufferIndex )
971 mWorldMatrix.CopyPrevious( updateBufferIndex );
975 * Mark the node as exclusive to a single RenderTask.
976 * @param[in] renderTask The render-task, or NULL if the Node is not exclusive to a single RenderTask.
978 void SetExclusiveRenderTask( RenderTask* renderTask )
980 mExclusiveRenderTask = renderTask;
984 * Query whether the node is exclusive to a single RenderTask.
985 * @return The render-task, or NULL if the Node is not exclusive to a single RenderTask.
987 RenderTask* GetExclusiveRenderTask() const
989 return mExclusiveRenderTask;
993 * Set how the Node and its children should be drawn; see Dali::Actor::SetDrawMode() for more details.
994 * @param[in] drawMode The new draw-mode to use.
996 void SetDrawMode( const DrawMode::Type& drawMode )
998 mDrawMode = drawMode;
1002 * Returns whether node is an overlay or not.
1003 * @return True if node is an overlay, false otherwise.
1005 DrawMode::Type GetDrawMode() const
1011 * Equality operator, checks for identity, not values.
1014 bool operator==( const Node* rhs ) const
1024 * Set the inhibit local transform flag.@n
1025 * Setting this flag will stop the node's local transform (position, scale and orientation)
1026 * being applied on top of its parents transformation.
1027 * @param[in] flag When true, local transformation is inhibited when calculating the world matrix.
1029 void SetInhibitLocalTransform( bool flag )
1031 SetDirtyFlag( TransformFlag );
1032 mInhibitLocalTransform = flag;
1036 * Get the inhibit local transform flag.@n
1037 * See @ref SetInhibitLocalTransform
1038 * @result A flag, when true, local transformation is inhibited when calculating the world matrix.
1040 bool GetInhibitLocalTransform() const
1042 return mInhibitLocalTransform;
1048 * Set the parent of a Node.
1049 * @param[in] parentNode the new parent.
1051 void SetParent(Node& parentNode);
1054 * Protected constructor; See also Node::New()
1058 private: // from RenderDataProvider
1061 * @copydoc RenderDataProvider::GetModelMatrix
1063 virtual const Matrix& GetModelMatrix( unsigned int bufferId )
1065 return GetWorldMatrix( bufferId );
1069 * @copydoc RenderDataProvider::GetRenderColor
1071 virtual const Vector4& GetRenderColor( unsigned int bufferId )
1073 return GetWorldColor( bufferId );
1082 Node& operator=(const Node& rhs);
1085 * @copydoc Dali::Internal::SceneGraph::PropertyOwner::ResetDefaultProperties()
1087 virtual void ResetDefaultProperties( BufferIndex updateBufferIndex );
1090 * Recursive helper to disconnect a Node and its children.
1091 * Disconnected Nodes have no parent or children.
1092 * @param[in] updateBufferIndex The current update buffer index.
1093 * @param[in] connectedNodes Disconnected Node attachments should be removed from here.
1094 * @param[in] disconnectedNodes Disconnected Node attachments should be added here.
1096 void RecursiveDisconnectFromSceneGraph( BufferIndex updateBufferIndex, std::set<Node*>& connectedNodes, std::set<Node*>& disconnectedNodes );
1098 public: // Default properties
1100 PropertyVector3 mParentOrigin; ///< Local transform; the position is relative to this. Sets the TransformFlag dirty when changed
1101 PropertyVector3 mAnchorPoint; ///< Local transform; local center of rotation. Sets the TransformFlag dirty when changed
1103 AnimatableProperty<Vector3> mSize; ///< Size is provided for layouting
1104 AnimatableProperty<Vector3> mPosition; ///< Local transform; distance between parent-origin & anchor-point
1105 AnimatableProperty<Quaternion> mRotation; ///< Local transform; rotation relative to parent node
1106 AnimatableProperty<Vector3> mScale; ///< Local transform; scale relative to parent node
1107 AnimatableProperty<bool> mVisible; ///< Visibility can be inherited from the Node hierachy
1108 AnimatableProperty<Vector4> mColor; ///< Color can be inherited from the Node hierarchy
1110 // Inherited properties; read-only from public API
1112 InheritedVector3 mWorldPosition; ///< Full inherited position
1113 InheritedQuaternion mWorldRotation; ///< Full inherited rotation
1114 InheritedVector3 mWorldScale; ///< Full inherited scale
1115 InheritedMatrix mWorldMatrix; ///< Full inherited world matrix
1116 InheritedColor mWorldColor; ///< Full inherited color
1120 Node* mParent; ///< Pointer to parent node (a child is owned by its parent)
1121 RenderTask* mExclusiveRenderTask; ///< Nodes can be marked as exclusive to a single RenderTask
1123 NodeAttachmentOwner mAttachment; ///< Optional owned attachment
1124 NodeContainer mChildren; ///< Container of children; not owned
1126 Vector3 mGeometryScale; ///< Applied before calculating world transform.
1127 Vector3 mInitialVolume; ///< Initial volume... TODO - need a better name.
1128 Vector3 mSizeModeFactor; ///< Factor of parent size. Used for certain SizeModes.
1130 // flags, compressed to bitfield
1131 int mDirtyFlags:10; ///< A composite set of flags for each of the Node properties
1133 bool mIsRoot:1; ///< True if the node cannot have a parent
1134 bool mInheritRotation:1; ///< Whether the parent's rotation should be inherited.
1135 bool mInheritScale:1; ///< Whether the parent's scale should be inherited.
1136 bool mTransmitGeometryScaling:1; ///< Whether geometry scaling should be applied to world transform.
1137 bool mInhibitLocalTransform:1; ///< whether local transform should be applied.
1138 bool mIsActive:1; ///< When a Node is marked "active" it has been disconnected, and its properties have not been modified
1140 DrawMode::Type mDrawMode:2; ///< How the Node and its children should be drawn
1141 PositionInheritanceMode mPositionInheritanceMode:2;///< Determines how position is inherited, 2 bits is enough
1142 ColorMode mColorMode:2; ///< Determines whether mWorldColor is inherited, 2 bits is enough
1143 SizeMode mSizeMode:2; ///< Determines how the actors parent affects the actors size.
1145 // Changes scope, should be at end of class
1146 DALI_LOG_OBJECT_STRING_DECLARATION;
1149 // Messages for Node
1151 inline void SetInheritRotationMessage( EventToUpdate& eventToUpdate, const Node& node, bool inherit )
1153 typedef MessageValue1< Node, bool > LocalType;
1155 // Reserve some memory inside the message queue
1156 unsigned int* slot = eventToUpdate.ReserveMessageSlot( sizeof( LocalType ) );
1158 // Construct message in the message queue memory; note that delete should not be called on the return value
1159 new (slot) LocalType( &node, &Node::SetInheritRotation, inherit );
1162 inline void SetSizeModeMessage( EventToUpdate& eventToUpdate, const Node& node, SizeMode mode )
1164 typedef MessageValue1< Node, SizeMode > LocalType;
1166 // Reserve some memory inside the message queue
1167 unsigned int* slot = eventToUpdate.ReserveMessageSlot( sizeof( LocalType ) );
1169 // Construct message in the message queue memory; note that delete should not be called on the return value
1170 new (slot) LocalType( &node, &Node::SetSizeMode, mode );
1173 inline void SetSizeModeFactorMessage( EventToUpdate& eventToUpdate, const Node& node, const Vector3& factor )
1175 typedef MessageValue1< Node, Vector3 > LocalType;
1177 // Reserve some memory inside the message queue
1178 unsigned int* slot = eventToUpdate.ReserveMessageSlot( sizeof( LocalType ) );
1180 // Construct message in the message queue memory; note that delete should not be called on the return value
1181 new (slot) LocalType( &node, &Node::SetSizeModeFactor, factor );
1184 inline void SetInitialVolumeMessage( EventToUpdate& eventToUpdate, const Node& node, const Vector3& initialVolume )
1186 typedef MessageValue1< Node, Vector3 > LocalType;
1188 // Reserve some memory inside the message queue
1189 unsigned int* slot = eventToUpdate.ReserveMessageSlot( sizeof( LocalType ) );
1191 // Construct message in the message queue memory; note that delete should not be called on the return value
1192 new (slot) LocalType( &node, &Node::SetInitialVolume, initialVolume );
1195 inline void SetTransmitGeometryScalingMessage( EventToUpdate& eventToUpdate, const Node& node, bool transmitGeometryScaling )
1197 typedef MessageValue1< Node, bool > LocalType;
1199 // Reserve some memory inside the message queue
1200 unsigned int* slot = eventToUpdate.ReserveMessageSlot( sizeof( LocalType ) );
1202 // Construct message in the message queue memory; note that delete should not be called on the return value
1203 new (slot) LocalType( &node, &Node::SetTransmitGeometryScaling, transmitGeometryScaling );
1206 inline void SetParentOriginMessage( EventToUpdate& eventToUpdate, const Node& node, const Vector3& origin )
1208 typedef MessageValue1< Node, Vector3 > LocalType;
1210 // Reserve some memory inside the message queue
1211 unsigned int* slot = eventToUpdate.ReserveMessageSlot( sizeof( LocalType ) );
1213 // Construct message in the message queue memory; note that delete should not be called on the return value
1214 new (slot) LocalType( &node, &Node::SetParentOrigin, origin );
1217 inline void SetAnchorPointMessage( EventToUpdate& eventToUpdate, const Node& node, const Vector3& anchor )
1219 typedef MessageValue1< Node, Vector3 > LocalType;
1221 // Reserve some memory inside the message queue
1222 unsigned int* slot = eventToUpdate.ReserveMessageSlot( sizeof( LocalType ) );
1224 // Construct message in the message queue memory; note that delete should not be called on the return value
1225 new (slot) LocalType( &node, &Node::SetAnchorPoint, anchor );
1228 inline void SetPositionInheritanceModeMessage( EventToUpdate& eventToUpdate, const Node& node, PositionInheritanceMode mode )
1230 typedef MessageValue1< Node, PositionInheritanceMode > LocalType;
1232 // Reserve some memory inside the message queue
1233 unsigned int* slot = eventToUpdate.ReserveMessageSlot( sizeof( LocalType ) );
1235 // Construct message in the message queue memory; note that delete should not be called on the return value
1236 new (slot) LocalType( &node, &Node::SetPositionInheritanceMode, mode );
1239 inline void SetInheritScaleMessage( EventToUpdate& eventToUpdate, const Node& node, bool inherit )
1241 typedef MessageValue1< Node, bool > LocalType;
1243 // Reserve some memory inside the message queue
1244 unsigned int* slot = eventToUpdate.ReserveMessageSlot( sizeof( LocalType ) );
1246 // Construct message in the message queue memory; note that delete should not be called on the return value
1247 new (slot) LocalType( &node, &Node::SetInheritScale, inherit );
1250 inline void SetColorModeMessage( EventToUpdate& eventToUpdate, const Node& node, ColorMode colorMode )
1252 typedef MessageValue1< Node, ColorMode > LocalType;
1254 // Reserve some memory inside the message queue
1255 unsigned int* slot = eventToUpdate.ReserveMessageSlot( sizeof( LocalType ) );
1257 // Construct message in the message queue memory; note that delete should not be called on the return value
1258 new (slot) LocalType( &node, &Node::SetColorMode, colorMode );
1261 inline void SetDrawModeMessage( EventToUpdate& eventToUpdate, const Node& node, DrawMode::Type drawMode )
1263 typedef MessageValue1< Node, DrawMode::Type > LocalType;
1265 // Reserve some memory inside the message queue
1266 unsigned int* slot = eventToUpdate.ReserveMessageSlot( sizeof( LocalType ) );
1268 // Construct message in the message queue memory; note that delete should not be called on the return value
1269 new (slot) LocalType( &node, &Node::SetDrawMode, drawMode );
1272 } // namespace SceneGraph
1274 } // namespace Internal
1278 #endif // __DALI_INTERNAL_SCENE_GRAPH_NODE_H_