ModalUtils.java

/*
  Part of the CircDesigNA Project - http://cssb.utexas.edu/circdesigna
  
  Copyright (c) 2010-11 Ben Braun
  
  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation, version 2.1.

  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General
  Public License along with this library; if not, write to the
  Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  Boston, MA  02111-1307  USA
*/
package circdesignagui;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;

import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JPanel;
import javax.swing.border.EtchedBorder;

/**
 * Modal windowing system, which means that a single modal window can be open
 * at any time, and is rendered on top of all other components. The overlaid window captures all input.
 */
public class ModalUtils {
	public static JPanel openModalDialog(ThemedApplet mc, final Font xfont) {
		return openModalDialog(mc, xfont, new Runnable(){
			public void run() {
			}
		});
	}
	public static JPanel openModalDialog(final ThemedApplet mc, final Font xfont, final Runnable runOnClose) {
		final JPanel modalPanel = mc.getModalPanel();
		modalPanel.removeAll();
		final ScaleUtils su = new ScaleUtils();
		JButton sub = new JButton(){
			public void paintComponent(Graphics g){
				g.setColor(Color.WHITE);
				g.fillRect(0,0,getWidth(),getHeight());
			}
		};
		sub.setOpaque(true);
		sub.setLayout(new BorderLayout());
		JButton close = new JButton(){
			private boolean mouseInsideX = false;
			{
				setBorder(null);
				setOpaque(true);
				addMouseListener(new MouseListener(){
					public void mouseClicked(MouseEvent e) {
						//EXIT MODAL
						modalPanel.removeAll();
						modalPanel.validate();
						modalPanel.repaint();
						runOnClose.run();
					}
					
					public void mouseEntered(MouseEvent e) {
						mouseInsideX = true;
					}

					public void mouseExited(MouseEvent e) {
						mouseInsideX = false;
					}

					public void mousePressed(MouseEvent e) {
					}

					public void mouseReleased(MouseEvent e) {
					}
					
				});
			}
			public void paintComponent(Graphics g){
				g.setColor(mc.THEMECOL2);
						//new Color(200,180,180));
				g.fillRect(0,0,getWidth(),getHeight());
				//Draw X at top.
				if (mouseInsideX){
					g.setColor(Color.red);
				} else {
					g.setColor(Color.black);
				}
				g.setFont(xfont.deriveFont(Font.BOLD,24.f));
				g.drawString("X", 5, 20);
			}
		};
		final int closeBarSize = 24;
		su.addPreferredSize(close, 0f, 0f, closeBarSize,closeBarSize);
		JPanel leftSide = new JPanel();
		su.addPreferredSize(leftSide, 1f, 1f, -closeBarSize-5, 0);
		sub.add(leftSide, BorderLayout.WEST);
		sub.add(close, BorderLayout.EAST);
		su.addPreferredSize(sub, 1f,1f,0,-8);
		sub.setRolloverEnabled(false);
		sub.setBorder(BorderFactory.createEtchedBorder(EtchedBorder.LOWERED));
		modalPanel.add(sub,BorderLayout.CENTER);
		
		mc.addModalScale(new Runnable(){
			public void run(){
				su.pushSizes(modalPanel.getPreferredSize().width, modalPanel.getPreferredSize().height);
				modalPanel.validate();
			}
		});
		
		return leftSide;
	}

}