Add allDependencyIds() pure virtual and overrides to backend nodes

This will be used to visit all nodes by the visitor for the purpose of
collecting vlaue nodes that should be evaluated.

Change-Id: Iff84eed2ee139a0ecd3639994549e5859b5827d0
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

5 files changed, 27 insertions, 0 deletions

diff --git a/src/animation/backend/additiveclipblend_p.h b/src/animation/backend/additiveclipblend_p.h
index 7267283a5..b3fe240ed 100644
--- a/src/animation/backend/additiveclipblend_p.h
+++ b/src/animation/backend/additiveclipblend_p.h
@@ -73,6 +73,11 @@ public:
 
     void sceneChangeEvent(const Qt3DCore::QSceneChangePtr &e) Q_DECL_FINAL;
 
+    inline QVector<Qt3DCore::QNodeId> allDependencyIds() const Q_DECL_OVERRIDE
+    {
+        return currentDependencyIds();
+    }
+
     inline QVector<Qt3DCore::QNodeId> currentDependencyIds() const Q_DECL_OVERRIDE
     {
         return { m_baseClipId, m_additiveClipId };
diff --git a/src/animation/backend/clipblendnode.cpp b/src/animation/backend/clipblendnode.cpp
index 26b4c75d7..4f236b11c 100644
--- a/src/animation/backend/clipblendnode.cpp
+++ b/src/animation/backend/clipblendnode.cpp
@@ -121,6 +121,17 @@ ClipResults ClipBlendNode::clipResults(Qt3DCore::QNodeId animatorId) const
 */
 
 /*!
+    \fn QVector<Qt3DCore::QNodeId> ClipBlendNode::allDependencyIds() const
+    \internal
+
+    Similar to currentDependencyIds() but returns the ids of all potential
+    dependency nodes, not just those that are dependencies given the current
+    internal state. For example a generalised lerp node would return the ids
+    of all nodes that can participate in the lerp for any value of the blend
+    parameter. Not just those bounding the current blend value.
+*/
+
+/*!
     \internal
 
     Fetches the ClipResults from the nodes listed in the dependencyIds
diff --git a/src/animation/backend/clipblendnode_p.h b/src/animation/backend/clipblendnode_p.h
index 89cf09fa0..865536ea0 100644
--- a/src/animation/backend/clipblendnode_p.h
+++ b/src/animation/backend/clipblendnode_p.h
@@ -83,6 +83,7 @@ public:
     void setClipResults(Qt3DCore::QNodeId animatorId, const ClipResults &clipResults);
     ClipResults clipResults(Qt3DCore::QNodeId animatorId) const;
 
+    virtual QVector<Qt3DCore::QNodeId> allDependencyIds() const = 0;
     virtual QVector<Qt3DCore::QNodeId> currentDependencyIds() const = 0;
     virtual double duration() const = 0;
 
diff --git a/src/animation/backend/clipblendvalue_p.h b/src/animation/backend/clipblendvalue_p.h
index 8c6d85940..6da800f98 100644
--- a/src/animation/backend/clipblendvalue_p.h
+++ b/src/animation/backend/clipblendvalue_p.h
@@ -66,6 +66,11 @@ public:
 
     void sceneChangeEvent(const Qt3DCore::QSceneChangePtr &e) Q_DECL_OVERRIDE;
 
+    inline QVector<Qt3DCore::QNodeId> allDependencyIds() const Q_DECL_OVERRIDE
+    {
+        return currentDependencyIds();
+    }
+
     inline QVector<Qt3DCore::QNodeId> currentDependencyIds() const Q_DECL_OVERRIDE
     {
         return { m_clipId };
diff --git a/src/animation/backend/lerpclipblend_p.h b/src/animation/backend/lerpclipblend_p.h
index 56a67ca5d..e09987759 100644
--- a/src/animation/backend/lerpclipblend_p.h
+++ b/src/animation/backend/lerpclipblend_p.h
@@ -73,6 +73,11 @@ public:
 
     void sceneChangeEvent(const Qt3DCore::QSceneChangePtr &e) Q_DECL_FINAL;
 
+    inline QVector<Qt3DCore::QNodeId> allDependencyIds() const Q_DECL_OVERRIDE
+    {
+        return currentDependencyIds();
+    }
+
     inline QVector<Qt3DCore::QNodeId> currentDependencyIds() const Q_DECL_OVERRIDE
     {
         return { m_startClipId, m_endClipId };