protected override bool MouseDown(Event evt, WindowState state)
{
var handle = PickerUtils.PickedLayerableOfType <TimelineClipHandle>();
if (handle == null)
{
return(false);
}
if (handle.clipGUI.clip.parentTrack != null && handle.clipGUI.clip.parentTrack.lockedInHierarchy)
{
return(false);
}
if (ItemSelection.CanClearSelection(evt))
{
SelectionManager.Clear();
}
if (!SelectionManager.Contains(handle.clipGUI.clip))
{
SelectionManager.Add(handle.clipGUI.clip);
}
m_TrimClipHandler = handle;
m_IsCaptured = true;
state.AddCaptured(this);
m_UndoSaved = false;
var clip = m_TrimClipHandler.clipGUI.clip;
m_OriginalDuration = clip.duration;
m_OriginalTimeScale = clip.timeScale;
m_OriginalEaseInDuration = clip.easeInDuration;
m_OriginalEaseOutDuration = clip.easeOutDuration;
RefreshOverlayStrings(m_TrimClipHandler, state);
// in ripple trim, the right edge moves and needs to snap
var edges = ManipulateEdges.Right;
if (EditMode.editType != EditMode.EditType.Ripple && m_TrimClipHandler.trimDirection == TrimEdge.Start)
{
edges = ManipulateEdges.Left;
}
m_SnapEngine = new SnapEngine(m_TrimClipHandler.clipGUI, new TrimClipAttractionHandler(), edges, state,
evt.mousePosition);
EditMode.BeginTrim(ItemsUtils.ToItem(clip), m_TrimClipHandler.trimDirection);
return(true);
}
protected override bool MouseUp(Event evt, WindowState state)
{
if (!m_Dragged)
{
var item = PickerUtils.TopmostPickedItem() as ISelectable;
if (item == null)
{
return(false);
}
if (!item.IsSelected())
{
return(false);
}
// Re-selecting an item part of a multi-selection should only keep this item selected.
if (SelectionManager.Count() > 1 && ItemSelection.CanClearSelection(evt))
{
SelectionManager.Clear();
item.Select();
return(true);
}
if (m_CycleMarkersPending)
{
m_CycleMarkersPending = false;
TimelineMarkerClusterGUI.CycleMarkers();
return(true);
}
return(false);
}
m_TimeAreaAutoPanner = null;
DropItems();
m_SnapEngine = null;
m_MoveItemHandler = null;
state.Evaluate();
state.RemoveCaptured(this);
m_Dragged = false;
TimelineCursors.ClearCursor();
return(true);
}
protected override bool MouseUp(Event evt, WindowState state)
{
if (!m_IsCaptured)
{
return(false);
}
m_IsCaptured = false;
m_TrimClipHandler = null;
m_UndoSaved = false;
m_SnapEngine = null;
EditMode.FinishTrim();
state.captured.Clear();
return(true);
}
protected override bool MouseDrag(Event evt, WindowState state)
{
if (state.editSequence.isReadOnly)
{
return(false);
}
// case 1099285 - ctrl-click can cause no clips to be selected
var selectedItemsGUI = SelectionManager.SelectedItems();
if (!selectedItemsGUI.Any())
{
m_Dragged = false;
return(false);
}
const float hDeadZone = 5.0f;
const float vDeadZone = 5.0f;
bool vDone = m_VerticalMovementDone || Math.Abs(evt.mousePosition.y - m_MouseDownPosition.y) > vDeadZone;
bool hDone = m_HorizontalMovementDone || Math.Abs(evt.mousePosition.x - m_MouseDownPosition.x) > hDeadZone;
m_CycleMarkersPending = false;
if (!m_Dragged)
{
var canStartMove = vDone || hDone;
if (canStartMove)
{
state.AddCaptured(this);
m_Dragged = true;
var referenceTrack = GetTrackDropTargetAt(state, m_MouseDownPosition);
foreach (var item in selectedItemsGUI)
{
item.gui.StartDrag();
}
m_MoveItemHandler = new MoveItemHandler(state);
m_MoveItemHandler.Grab(selectedItemsGUI, referenceTrack, m_MouseDownPosition);
m_SnapEngine = new SnapEngine(m_MoveItemHandler, m_MoveItemHandler, ManipulateEdges.Both,
state, m_MouseDownPosition);
m_TimeAreaAutoPanner = new TimeAreaAutoPanner(state);
}
}
if (!m_VerticalMovementDone)
{
m_VerticalMovementDone = vDone;
if (m_VerticalMovementDone)
{
m_MoveItemHandler.OnTrackDetach();
}
}
if (!m_HorizontalMovementDone)
{
m_HorizontalMovementDone = hDone;
}
if (m_Dragged)
{
if (m_HorizontalMovementDone)
{
m_SnapEngine.Snap(evt.mousePosition, evt.modifiers);
}
if (m_VerticalMovementDone)
{
var track = GetTrackDropTargetAt(state, evt.mousePosition);
m_MoveItemHandler.UpdateTrackTarget(track);
}
state.Evaluate();
}
return(true);
}