import java.awt.*;

public class Example7ProgressPanel extends Panel {
    private int _maxRecords;
    private int _currentRecord = 0;

    public Example7ProgressPanel (int maxRecords) {
        _maxRecords = maxRecords;
    } // end of constructor

    public void setCurrentRecord(int currentRecord) {
        _currentRecord = currentRecord;
        repaint();
    } // end of setCurrentRecord

    public void paint(Graphics g) {
        // based on JavaWorld ProgressBar code by Mark Boulo
        Dimension panelDimension = size();
        double percentComplete = (double)_currentRecord * 100.0 / (double)_maxRecords;
        int pixelWidth = (panelDimension.width * _currentRecord) / _maxRecords;

        // Fill the bar the appropriate percent full.
        g.setColor (Color.lightGray);
        g.fillRect (0, 0, pixelWidth, panelDimension.height);

        // Build a string showing the % completed as a numeric value.
        String s        = String.valueOf((int)percentComplete) + " %";

        // Set the color of the text.  If we don't, it appears in the same color
        // as the rectangle making the text effectively invisible.
        g.setColor (Color.black);

        // Calculate the width of the string in pixels.  We use this to center
        // the string in the progress bar window.
        FontMetrics fm       = g.getFontMetrics(g.getFont());

        g.drawString(s, (panelDimension.width - fm.stringWidth(s))/2, 24);

    } // end of paint

} // end of ExampleProgressPanel