private void AssociatedObject_MouseLeave(object sender, MouseEventArgs e)
{
if (e.LeftButton == MouseButtonState.Pressed)
{
IBImage trg = AssociatedObject.DataContext as IBImage;
if (trg == null || trg.owner == null)
{
return;
}
CellSource trgOwner = trg.owner as CellSource;
if (trgOwner == null)
{
return;
}
LayerDragData data = new LayerDragData()
{
from = trg,
fromOwner = trgOwner,
fromIndex = trgOwner.Layers.IndexOf(trg)
};
DragDrop.DoDragDrop(AssociatedObject, data, DragDropEffects.Move);
}
}
private void AssociatedObject_DragEnter(object sender, DragEventArgs e)
{
LayerDragData data = e.Data.GetData(typeof(LayerDragData)) as LayerDragData;
if (data != null)
{
IBImage trg = AssociatedObject.DataContext as IBImage;
if (trg == null || trg == data.from || trg.owner == null)
{
return;
}
CellSource trgOwner = trg.owner as CellSource;
if (trgOwner == null || trgOwner != data.fromOwner)
{
return;
}
int trgIndex = trgOwner.Layers.IndexOf(trg);
trgOwner.Layers.Remove(data.from);
trgOwner.Layers.Insert(trgIndex, data.from);
RedoUndoManager.Current.Record(new RUSortLayer(data.from, data.fromIndex, data.fromOwner, trg, trgIndex));
IBCanvasControl.RefreshAll();
}
}