public void Start(Control sourceControl, Effects.Effects effects, Point location, IPreview preview)
{
if (IsDisposed)
{
return;
}
if (!IsHandleCreated)
{
CreateHandle();
}
_effects = effects;
SourceControl = sourceControl ?? throw new ArgumentNullException(nameof(sourceControl));
IsDragging = true;
Location = location;
Preview = preview;
UpdatablePreview = preview as IUpdatablePreview;
PreviewOpacityController = preview as IPreviewOpacityController;
if (UpdatablePreview is object)
{
UpdatablePreview.Updated += OnUpdatablePreviewUpdated;
UpdatablePreview?.Start();
}
InvalidatePreview();
_effects.StartEffect.Start(new IEffect.Arguments(this, SourceControl, null));
}
public void Stop(Control target, bool wasCancelled)
{
if (!IsDragging)
{
return;
}
if (UpdatablePreview is object)
{
UpdatablePreview.Stop();
UpdatablePreview.Updated -= OnUpdatablePreviewUpdated;
}
if (wasCancelled)
{
_effects.CancelEffect.Start(new IEffect.Arguments(this, SourceControl, target));
}
else
{
_effects.DropEffect.Start(new IEffect.Arguments(this, SourceControl, target));
}
IsDragging = false;
}
