/*
 * @(#)ProgressIndicator.java
 *
 * Copyright (c) 2007-2008 The authors and contributors of JHotDraw.
 * You may not use, copy or modify this file, except in compliance with the 
 * accompanying license terms.
 */
package org.jhotdraw.samples.svg.gui;

import edu.umd.cs.findbugs.annotations.Nullable;
import java.awt.*;
import javax.swing.*;

/**
 * ProgressIndicator.
 *
 * @author Werner Randelshofer
 * @version $Id$
 */
public class ProgressIndicator extends javax.swing.JPanel {
    private static final long serialVersionUID = 1L;

    ProgressMonitor m;
    private BoundedRangeModel progressModel;

    /** Creates new instance. */
    public ProgressIndicator() {
        this(null, null);
    }

    /** Creates new instance. */
    public ProgressIndicator(@Nullable String message, @Nullable String note) {
        this(message, note, 0, 100, true);
    }

    /** Creates new instance. */
    public ProgressIndicator(
            @Nullable String message,
            @Nullable String note,
            int min,
            int max,
            boolean indeterminate) {
        initComponents();

        messageLabel.setFont(messageLabel.getFont().deriveFont(Font.BOLD));
        progressModel = new DefaultBoundedRangeModel(0, 0, min, max);
        progressBar.setModel(progressModel);
        setMessage(message);
        setNote(note);
        setIndeterminate(indeterminate);
    }

    public void setMessage(@Nullable String message) {
        messageLabel.setText(message);
    }

    @Nullable public String getMessage() {
        return messageLabel.getText();
    }

    public void setNote(@Nullable final String newValue) {
        String oldValue = noteLabel.getText();
        noteLabel.setText(newValue);
        if (oldValue == null || newValue == null && oldValue != newValue) {
            Runnable r = new Runnable() {

                @Override
                public void run() {
                    noteLabel.setVisible(newValue != null);
                    validate();
                }
            };
            SwingUtilities.invokeLater(r);
        }
    }

    public String getNote() {
        return noteLabel.getText();
    }

    public void setProgressModel(BoundedRangeModel m) {
        // BoundedRangeModel oldValue = progressModel;
        progressModel = m;
        progressBar.setModel(m);
    }

    /**
     * Returns the minimum value -- the lower end of the progress value.
     *
     * @return an int representing the minimum value
     * @see #setMinimum
     */
    public int getMinimum() {
        return progressModel.getMinimum();
    }

    /**
     * Specifies the minimum value.
     *
     * @param m  an int specifying the minimum value
     * @see #getMinimum
     */
    public void setMinimum(int m) {
        progressModel.setMinimum(m);
    }

    /**
     * Indicate the progress of the operation being monitored.
     * @param nv an int specifying the current value, between the
     *        maximum and minimum specified for this component
     */
    public void setProgress(int nv) {
        progressModel.setValue(nv);
    }

    /**
     * Returns the maximum value -- the higher end of the progress value.
     *
     * @return an int representing the maximum value
     * @see #setMaximum
     */
    public int getMaximum() {
        return progressModel.getMaximum();
    }

    /**
     * Specifies the maximum value.
     *
     * @param m  an int specifying the maximum value
     * @see #getMaximum
     */
    public void setMaximum(int m) {
        progressModel.setMaximum(m);
    }

    public void setIndeterminate(boolean b) {
        progressBar.setIndeterminate(b);
    }

    public boolean isIndeterminate() {
        return progressBar.isIndeterminate();
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {
        java.awt.GridBagConstraints gridBagConstraints;

        messageLabel = new javax.swing.JLabel();
        noteLabel = new javax.swing.JLabel();
        progressBar = new javax.swing.JProgressBar();

        setBackground(new java.awt.Color(255, 255, 255));
        setLayout(new java.awt.GridBagLayout());

        messageLabel.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        add(messageLabel, gridBagConstraints);

        noteLabel.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
        gridBagConstraints.insets = new java.awt.Insets(4, 0, 0, 0);
        add(noteLabel, gridBagConstraints);
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.insets = new java.awt.Insets(4, 0, 0, 0);
        add(progressBar, gridBagConstraints);
    }// </editor-fold>//GEN-END:initComponents
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JLabel messageLabel;
    private javax.swing.JLabel noteLabel;
    private javax.swing.JProgressBar progressBar;
    // End of variables declaration//GEN-END:variables
}