annotate src/samer/core_/util/heavy/JPanel.java @ 0:bf79fb79ee13

Initial Mercurial check in.

/*
 *	JPanel.java	
 *
 *	Copyright (c) 2000, Samer Abdallah, King's College London.
 *	All rights reserved.
 *
 *	This software is provided AS iS and WITHOUT ANY WARRANTY; 
 *	without even the implied warranty of MERCHANTABILITY or 
 *	FITNESS FOR A PARTICULAR PURPOSE.
 */

package samer.core.util.heavy;
import  samer.core.*;
import  samer.core.util.*;
import  java.awt.*;
import  java.awt.event.*;

/**
 *		This is a panel with an optional bevel border,
 *		and a name label. It can also draw bevels
 *		round its children
 */


public class JPanel extends Panel
{
	private Border.Interface	cborder=null;
	private Border.Interface	border=null;

	/** Constructors can specify bevel type, inset and name */

	public JPanel() { this(Border.createDefault()); }
	public JPanel(Border.Interface border)
	{
		setLayout(new FlowLayout(FlowLayout.LEFT,0,0));
		addMouseListener(MouseRetarget.listener);
		this.border = border;
	}

	public Insets getInsets() { return border.getBorderInsets(this); }

	public void setBorder( Border.Interface b) { border=b; }
	public void setChildBorder( Border.Interface b) { cborder=b; }

	public void paint(Graphics g)
	{
		super.paint(g);

		if (border!=null) {
			Dimension d=getSize();
			border.paintBorder(this,g,0,0,d.width,d.height);
		}

		if (cborder!=null) {
			Component []	c=getComponents();
			Insets	insets=cborder.getBorderInsets(this);
			int		dx=insets.left, dy=insets.top;
			int		dw=insets.left+insets.right;
			int		dh=insets.top+insets.bottom;

			for (int i=c.length-1; i>=0; i--) {
				Rectangle r=c[i].getBounds();
				if (!r.isEmpty()) {
					cborder.paintBorder(
						c[i], g, 
						r.x-dx, r.y-dy,
						r.width+dw, r.height+dh
					);
				}
			}
		}
	}
}