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 bool ValidateMove(ItemsPerTrack itemsGroup)
{
var track = itemsGroup.targetTrack;
var items = itemsGroup.items;
if (EditModeUtils.IsInfiniteTrack(track))
{
double startTime;
double stopTime;
EditModeUtils.GetInfiniteClipBoundaries(track, out startTime, out stopTime);
return(items.All(item =>
!EditModeUtils.IsItemWithinRange(item, startTime, stopTime) &&
!EditModeUtils.IsRangeWithinItem(startTime, stopTime, item)));
}
var siblings = ItemsUtils.GetItemsExcept(itemsGroup.targetTrack, items);
return(items.All(item => EditModeMixUtils.GetPlacementValidity(item, siblings) == PlacementValidity.Valid));
}