private void DragController(MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
if (!IsDragged)
{
RaiseDraggingStarted(e);
}
paintable.Focus();
IsDragged = true;
var moveAmount = new Size(e.X - LatchPoint.X, e.Y - LatchPoint.Y);
if (IsDragValid(moveAmount))
{
paintable.Location += moveAmount;
}
LatchPoint = e.Location;
paintable.Parent.Invalidate();
}
}
public void ClickedOnPaintable(MouseEventArgs a, IPaintable paintable)
{
paintable.Focus();
ClickedUsingTool?.Invoke(this, new PaintMouseArgs(a, paintable));
}