public SelectionRectDragController(SelectionRectDragControllerSetupArgs args)
{
_nodes = args.Nodes;
_connections = args.Connections;
_panel = args.BaseControl;
SelectionChangedCommand = args.SelectionChangedCommand;
var startPosition = args.Args.GetPosition(args.BaseControl);
_startPoint.X = startPosition.X;
_startPoint.Y = startPosition.Y;
//! オプション引数としてStyleが渡されている場合はStyleを適用する
if (args.BaseControl.Style != null)
{
Debug.Assert(args.RectangleStyle.TargetType == typeof(Rectangle));
Rectangle.Style = args.RectangleStyle;
}
else // デフォルトスタイルを利用する
{
if (_defaultStyle is null)
{
_defaultStyle = make_default_style();
}
Rectangle.Style = _defaultStyle;
}
Canvas.SetLeft(Rectangle, _startPoint.X);
Canvas.SetTop(Rectangle, _startPoint.Y);
Rectangle.Width = 1;
Rectangle.Height = 1;
_panel.Children.Add(Rectangle);
}
public IDragController Build()
{
var setupArgs = new SelectionRectDragControllerSetupArgs(
_dragControllerBuilder.InputElement,
_dragControllerBuilder.MouseEventArgs,
_dragControllerBuilder.Nodes,
_dragControllerBuilder.ConnectionShapes)
{
SelectionChangedCommand = _dragControllerBuilder.SelectionChangedCommand,
RectangleStyle = SelectionRectangleStyle
};
return(new SelectionRectDragController(setupArgs));
}