void TopLeft_DragStarted(object sender, DragStartedEventArgs e)
{
_editor.LoadSnapTargets(true);
if (_isline)
{
Helios.Controls.LineDecoration line = _editor.SelectedItems[0] as Helios.Controls.LineDecoration;
_editor.SnapManager.Size = new Size(1, 1);
_editor.SnapManager.Location = line.Start;
_editor.SnapManager.Action = SnapAction.LineStart;
_tempLine.Clone(line);
line.IsHidden = true;
}
else
{
_editor.SnapManager.Size = _editor.SelectedItems.Rectangle.Size;
_editor.SnapManager.Location = _editor.SelectedItems.Rectangle.TopLeft;
_editor.SnapManager.Action = SnapAction.ResizeNW;
}
_editor.SnapManager.DragVector = new Vector(0, 0);
_editor.Focus();
}
public bool IsValidDataObject(IDataObject dataObject, Point dropPoint)
{
bool valid = dataObject.GetDataPresent("Helios.Visual");
if (valid)
{
HeliosVisual item = dataObject.GetData("Helios.Visual") as HeliosVisual;
_target.LoadSnapTargets(false);
_target.SnapManager.Action = SnapAction.Drop;
_target.SnapManager.Size = item.DisplayRectangle.Size;
_target.SnapManager.DragVector = new Vector(0, 0);
}
return(valid);
}