Add support for animation callbacks

Let QChannelMapping optionally specify a callback, which then gets
invoked either directly on a worker thread or the gui thread.

Change-Id: I871776f47cc921ceb254f9dc1a7b89ae5c5618d8
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/src/animation/frontend/qclipanimator.cpp b/src/animation/frontend/qclipanimator.cpp
index eb6c80aee..da6534d16 100644
--- a/src/animation/frontend/qclipanimator.cpp
+++ b/src/animation/frontend/qclipanimator.cpp
@@ -41,6 +41,7 @@
 #include "qclipanimator_p.h"
 #include <Qt3DAnimation/qabstractanimationclip.h>
 #include <Qt3DAnimation/qchannelmapper.h>
+#include <Qt3DAnimation/private/qanimationcallbacktrigger_p.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -165,6 +166,16 @@ Qt3DCore::QNodeCreatedChangeBasePtr QClipAnimator::createNodeCreationChange() co
     return creationChange;
 }
 
+/*! \internal */
+void QClipAnimator::sceneChangeEvent(const Qt3DCore::QSceneChangePtr &change)
+{
+    if (change->type() == Qt3DCore::CallbackTriggered) {
+        QAnimationCallbackTriggerPtr callbackTrigger = qSharedPointerCast<Qt3DAnimation::QAnimationCallbackTrigger>(change);
+        if (callbackTrigger->callback())
+            callbackTrigger->callback()->valueChanged(callbackTrigger->value());
+    }
+}
+
 } // namespace Qt3DAnimation
 
 QT_END_NAMESPACE