public void setPreferredSize(double percentX, double percentY)
{
preferredSizeX = percentX;
preferredSizeY = percentY;
height = (int)((panel.getHeight() * preferredSizeY) / 100);
width = (int)((panel.getHeight() * preferredSizeX) / 100);
}
protected Layout(JPanel panel)
{
this.panel = panel;
elements = new List <UIElement>();
setUpperLeftCorner(0, 0);
setWidth(panel.getWidth());
setHeight(panel.getHeight());
}