Extend buildRequiredChannelsAndTypes to handle indexed targets

Specifically, this is needed for animating joints of a skeleton. If
we later find other such indexed targets we can rename the jointIndex
member to something more generic. For now this naming helps with
reasoning as there are many kinds of index in play within the animation
system.

Change-Id: I348f255ee622aa11f26e5a3c1055bf5c12071c17
Reviewed-by: Paul Lemire <paul.lemire@kdab.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/src/animation/backend/skeleton_p.h b/src/animation/backend/skeleton_p.h
index 0674a28a1..19da98261 100644
--- a/src/animation/backend/skeleton_p.h
+++ b/src/animation/backend/skeleton_p.h
@@ -64,7 +64,14 @@ public:
     void cleanup();
     void sceneChangeEvent(const Qt3DCore::QSceneChangePtr &e) Q_DECL_OVERRIDE;
 
+    int jointCount() const { return m_jointLocalPoses.size(); }
+
 #if defined(QT_BUILD_INTERNAL)
+    void setJointCount(int jointCount)
+    {
+        m_jointNames.resize(jointCount);
+        m_jointLocalPoses.resize(jointCount);
+    }
     void setJointNames(const QVector<QString> &names) { m_jointNames = names; }
     QVector<QString> jointNames() const { return m_jointNames; }
     void setJointLocalPoses(const QVector<Qt3DCore::Sqt> &localPoses) { m_jointLocalPoses = localPoses; }