source: other-projects/trunk/gs3-release-maker/tasks/sshtaskdef/src/mindbright/gui/ProgressBar.java@ 14627

/******************************************************************************
 *
 * Copyright (c) 1998,99 by Mindbright Technology AB, Stockholm, Sweden.
 *                 www.mindbright.se, [email protected]
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 *****************************************************************************
 * $Author: mats $
 * $Date: 2000/03/07 16:44:34 $
 * $Name: rel1-2-1 $
 *****************************************************************************/
package mindbright.gui;

import java.awt.*;

public class ProgressBar extends Canvas {
    int   max     = 0;
    int   current = 0;
    int   width   = 0;
    int   height  = 0;
    Color barColor;

    FontMetrics fm;

    Image    img;
    Graphics memG;

    public synchronized void setBarColor(Color c) {
    barColor = c;
    }
    public synchronized void setValue(int v) {
    setValue(v, false);
    }
    public synchronized void setValue(int v, boolean repaintNow) {
    current = (v > max ? max : v);
    if(repaintNow) {
        this.update(getGraphics());
    } else {
        repaint();
    }
    }
    public synchronized void setMax(int max, boolean reset) {
    this.max = max;
    if(reset)
        current = 0;
    setValue(current, true);
    }
    public Dimension getPreferredSize() {
    return new Dimension(width, height);
    }
    public ProgressBar(int max, int width, int height) {
    super();
    this.max    = max;
    this.width  = width;
    this.height = height;
    barColor    = Color.black;
    }

    public void update(Graphics g) {
    paint(g);
    }

    public synchronized void paint(Graphics g) {
    int         d = (max != 0 ? max : 1);
    double      perc = ((double)current * 100.0) / (double)d;
    String      p = ((int)perc) + "%";
    int         w = (current * (width - 2)) / d;

    if(fm == null) {
        fm = g.getFontMetrics(g.getFont());
    }

    if(img == null) {
        setBackground(Color.white);
        img  = createImage(width, height);
        memG = img.getGraphics();
    }

    memG.setPaintMode();
    memG.setColor(Color.white);
    memG.fillRect(0, 0, width, height);
    memG.setColor(Color.black);

    memG.drawRect(0, 0, width - 1, height - 1);
    memG.drawString(p, (width / 2) - (fm.stringWidth(p) / 2) + 1, (height / 2) + fm.getMaxAscent() + fm.getLeading() - (fm.getHeight() / 2));
    memG.setColor(barColor);
    memG.setXORMode(Color.white);
    memG.fillRect(1, 1, w, height - 2);

    g.drawImage(img, 0, 0, this);
    }
}