//Corrects clips durations to fit at insertion point, if needed
public static void PrepareItemsForInsertion(IEnumerable <ItemsPerTrack> itemsGroups)
{
foreach (var itemsGroup in itemsGroups)
{
var siblings = ItemsUtils.GetItemsExcept(itemsGroup.targetTrack, itemsGroup.items);
foreach (var item in itemsGroup.items.OfType <ITrimmable>())
{
var eatenItems = siblings.Where(c => EditModeUtils.IsItemWithinRange(c, item.start, item.end)).ToList();
var intersectedItem = EditModeUtils.GetFirstIntersectedItem(siblings, item.end);
if (intersectedItem != null)
{
eatenItems.Add(intersectedItem);
}
var blendableItems = eatenItems.OfType <IBlendable>();
if (blendableItems.Any())
{
var minTime = blendableItems.Min(c => c.end - c.rightBlendDuration);
if (item.end > minTime)
{
item.SetEnd(minTime, false);
}
}
}
}
}
public double AdjustStartTime(WindowState state, ItemsPerTrack itemsGroup, double time)
{
var track = itemsGroup.targetTrack;
if (track == null)
{
return(time);
}
double start;
double end;
if (EditModeUtils.IsInfiniteTrack(track))
{
EditModeUtils.GetInfiniteClipBoundaries(track, out start, out end);
}
else
{
var siblings = ItemsUtils.GetItemsExcept(track, itemsGroup.items);
var firstIntersectedItem = EditModeUtils.GetFirstIntersectedItem(siblings, time);
if (firstIntersectedItem == null)
{
return(time);
}
start = firstIntersectedItem.start;
end = firstIntersectedItem.end;
}
var closestTime = Math.Abs(time - start) < Math.Abs(time - end) ? start : end;
var pixelTime = state.TimeToPixel(time);
var pixelClosestTime = state.TimeToPixel(closestTime);
if (Math.Abs(pixelTime - pixelClosestTime) < k_SnapToEdgeDistance)
{
return(closestTime);
}
return(time);
}
public void DrawGUI(WindowState state, IEnumerable <MovingItems> movingItems, Color color)
{
var operationWillReplace = false;
foreach (var itemsPerTrack in movingItems)
{
var bounds = itemsPerTrack.onTrackItemsBounds;
var counter = 0;
foreach (var item in itemsPerTrack.items)
{
if (EditModeUtils.GetFirstIntersectedItem(itemsPerTrack.items, item.start) != null)
{
EditModeGUIUtils.DrawBoundsEdge(bounds[counter], color, TrimEdge.Start);
operationWillReplace = true;
}
if (EditModeUtils.GetFirstIntersectedItem(itemsPerTrack.items, item.end) != null)
{
EditModeGUIUtils.DrawBoundsEdge(bounds[counter], color, TrimEdge.End);
operationWillReplace = true;
}
counter++;
// TODO Display swallowed clips?
}
}
if (operationWillReplace)
{
TimelineCursors.SetCursor(TimelineCursors.CursorType.Replace);
}
else
{
TimelineCursors.ClearCursor();
}
}