void HandleDragAndDrop()
{
if (TimelineWindow.instance.state.editSequence.isReadOnly)
{
return;
}
if (Event.current == null || Event.current.type != EventType.DragUpdated &&
Event.current.type != EventType.DragPerform && Event.current.type != EventType.DragExited)
{
return;
}
timeline.CreateMarkerTrack(); // Ensure Marker track is created.
var objectsBeingDropped = DragAndDrop.objectReferences.OfType <Object>();
var candidateTime = TimelineHelpers.GetCandidateTime(Event.current.mousePosition);
var perform = Event.current.type == EventType.DragPerform;
var director = state.editSequence != null ? state.editSequence.director : null;
DragAndDrop.visualMode = TimelineDragging.HandleClipPaneObjectDragAndDrop(objectsBeingDropped, timeline.markerTrack, perform,
timeline, null, director, candidateTime, TimelineDragging.ResolveType);
if (perform && DragAndDrop.visualMode == DragAndDropVisualMode.Copy)
{
DragAndDrop.AcceptDrag();
}
}
public TimelineTreeViewGUI(TimelineWindow sequencerWindow, TimelineAsset timeline, Rect rect)
{
m_Timeline = timeline;
m_Window = sequencerWindow;
var treeviewState = new TreeViewState();
treeviewState.scrollPos = new Vector2(treeviewState.scrollPos.x, TimelineWindowViewPrefs.GetOrCreateViewModel(m_Timeline).verticalScroll);
m_TreeView = new TreeViewController(sequencerWindow, treeviewState);
m_TreeView.horizontalScrollbarStyle = GUIStyle.none;
m_TreeView.scrollViewStyle = GUI.skin.scrollView;
m_TreeView.keyboardInputCallback = sequencerWindow.TreeViewKeyboardCallback;
m_TimelineTreeView = new TimelineTreeView(sequencerWindow, m_TreeView);
var dragging = new TimelineDragging(m_TreeView, m_Window, m_Timeline);
m_DataSource = new TimelineDataSource(this, m_TreeView, sequencerWindow);
m_DataSource.onVisibleRowsChanged += m_TimelineTreeView.CalculateRowRects;
m_TreeView.Init(rect, m_DataSource, m_TimelineTreeView, dragging);
m_DataSource.ExpandItems(m_DataSource.root);
}
static bool ResolveType(IEnumerable <Type> types, Action <Type> onComplete, string formatString)
{
void CreateMarkerTrackOnComplete(Type type)
{
WindowState state = TimelineWindow.instance.state;
state.editSequence.asset.CreateMarkerTrack();
state.showMarkerHeader = true;
onComplete(type);
}
return(TimelineDragging.ResolveType(types, CreateMarkerTrackOnComplete, formatString));
}
void DoTrackBindingGUI(Rect rect, Rect headerRect)
{
var bindingRect = new Rect(
rect.xMin,
rect.y + (rect.height - WindowConstants.trackHeaderButtonSize) / 2f,
headerRect.xMax - WindowConstants.trackHeaderMaxButtonsWidth - rect.xMin,
WindowConstants.trackHeaderButtonSize);
if (bindingRect.Contains(Event.current.mousePosition) && TimelineDragging.IsDraggingEvent() && DragAndDrop.objectReferences.Length == 1)
{
TimelineDragging.HandleBindingDragAndDrop(track, BindingUtility.GetRequiredBindingType(m_TrackDrawData.m_Binding));
Event.current.Use();
}
else
{
if (m_TrackDrawData.m_Binding.outputTargetType != null && typeof(Object).IsAssignableFrom(m_TrackDrawData.m_Binding.outputTargetType))
{
ObjectBindingField(bindingRect, m_TrackDrawData.m_TrackBinding, m_TrackDrawData.m_Binding);
}
}
}
void DoTrackBindingGUI(Rect rect, Rect headerRect, WindowState state)
{
var spaceUsedByButtons = 2f + ((5 + WindowConstants.trackHeaderButtonPadding) * WindowConstants.trackHeaderButtonSize);
rect.y += (rect.height - 16.0f) / 2f;
rect.height = 16f;
rect.width = (headerRect.xMax - spaceUsedByButtons - rect.xMin);
var binding = state.editSequence.director.GetGenericBinding(track);
if (rect.Contains(Event.current.mousePosition) && TimelineDragging.IsDraggingEvent() && DragAndDrop.objectReferences.Length == 1)
{
TimelineDragging.HandleBindingDragAndDrop(track, BindingUtility.GetRequiredBindingType(m_Bindings[0]));
}
else
{
if (m_Bindings[0].outputTargetType != null && typeof(Object).IsAssignableFrom(m_Bindings[0].outputTargetType))
{
ObjectBindingField(rect, binding, m_Bindings[0]);
}
}
}
