/*
 * File    : ProgressDialog.java
 * Created : 10-dec-2002 14:40
 * By      : fbusquets
 *
 * JClic - Authoring and playing system for educational activities
 *
 * Copyright (C) 2000 - 2018 Francesc Busquets & Departament
 * d'Educacio de la Generalitat de Catalunya
 *
 * 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 (see the LICENSE file).
 */

package edu.xtec.util;

import java.io.InputStream;
import javax.swing.*;

/**
 * @author Francesc Busquets (fbusquets@xtec.cat)
 * @version 13.08.29
 */
public class ProgressDialog extends ExtendedJDialog implements ProgressInputStream.ProgressInputStreamListener {

  protected Options options = null;
  protected edu.xtec.util.SwingWorker worker = null;
  protected boolean progressActive = false;
  protected boolean cancellable = false;
  protected boolean saving = false;

  /** Creates new form ProgressDialog */
  public ProgressDialog(JComponent parent, Options options) {
    super(parent, "", true);
    this.options = options;
    initComponents();
  }

  /**
   * 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.
   */
  private void initComponents() { // GEN-BEGIN:initComponents
    java.awt.GridBagConstraints gridBagConstraints;

    mainPanel = new javax.swing.JPanel();
    label = new javax.swing.JLabel();
    fileLabel = new javax.swing.JLabel();
    progressBar = new javax.swing.JProgressBar();
    cancelButton = new javax.swing.JButton();

    setDefaultCloseOperation(javax.swing.WindowConstants.DO_NOTHING_ON_CLOSE);
    mainPanel.setLayout(new java.awt.GridBagLayout());

    label.setText(" ");
    gridBagConstraints = new java.awt.GridBagConstraints();
    gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
    gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
    gridBagConstraints.insets = new java.awt.Insets(12, 5, 0, 5);
    mainPanel.add(label, gridBagConstraints);

    fileLabel.setText(" ");
    fileLabel.setFont(new java.awt.Font("Dialog", 0, 12));
    gridBagConstraints = new java.awt.GridBagConstraints();
    gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
    gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
    gridBagConstraints.insets = new java.awt.Insets(0, 5, 5, 5);
    mainPanel.add(fileLabel, gridBagConstraints);

    progressBar.setPreferredSize(new java.awt.Dimension(250, 22));
    progressBar.setStringPainted(true);
    gridBagConstraints = new java.awt.GridBagConstraints();
    gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
    gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
    gridBagConstraints.weightx = 1.0;
    gridBagConstraints.insets = new java.awt.Insets(5, 5, 5, 5);
    mainPanel.add(progressBar, gridBagConstraints);

    cancelButton.setText(options.getMsg("CANCEL"));
    cancelButton.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(java.awt.event.ActionEvent evt) {
        cancelButtonActionPerformed(evt);
      }
    });

    gridBagConstraints = new java.awt.GridBagConstraints();
    gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
    gridBagConstraints.insets = new java.awt.Insets(5, 5, 5, 5);
    mainPanel.add(cancelButton, gridBagConstraints);

    getContentPane().add(mainPanel, java.awt.BorderLayout.CENTER);

    pack();
  } // GEN-END:initComponents

  private void cancelButtonActionPerformed(java.awt.event.ActionEvent evt) { // GEN-FIRST:event_cancelButtonActionPerformed

    if (cancellable && worker != null) {
      worker.cancel();
    }
  } // GEN-LAST:event_cancelButtonActionPerformed

  public void start(String titleKey, String msgKey, edu.xtec.util.SwingWorker worker, boolean showProgressBar,
      boolean cancellable, boolean saving) {
    this.worker = worker;
    this.cancellable = cancellable;
    this.saving = saving;
    setTitle(titleKey != null ? options.getMsg(titleKey) : "");
    label.setText(options.getMsg(msgKey != null ? msgKey : "WORKING"));
    cancelButton.setVisible(cancellable && worker != null);
    progressBar.setVisible(showProgressBar);
    setProgressValue(0);
    mainPanel.revalidate();
    pack();
    centerOver(getParent());
    if (worker != null) {
      worker.startLater();
    }
    setVisible(true);
  }

  public void setText(String txt) {
    label.setText(txt);
    mainPanel.revalidate();
  }

  public void setFileLabel(String txt) {
    fileLabel.setText(txt == null ? "" : txt);
  }

  public void startProgress(String name) {
    setProgressValue(0);
    name = (name == null ? "" : name.replace('\\', '/'));
    int i = name.lastIndexOf('/');
    if (i > 0)
      name = name.substring(i + 1);
    fileLabel.setText(name == null ? "" : options.getMsg(saving ? "SAVING_FILE" : "LOADING_FILE") + " " + name);
    progressActive = true;
  }

  public void endProgress() {
    progressActive = false;
  }

  public void setProgressMax(int max) {
    progressBar.setMaximum(max);
  }

  public void setProgressValue(int value) {
    progressBar.setValue(value);
  }

  public InputStream getProgressInputStream(InputStream is, int expectedLength, String name) {
    InputStream result;
    if (!progressActive) {
      ProgressInputStream pi = new ProgressInputStream(is, expectedLength, name);
      pi.addProgressInputStreamListener(this);
      result = pi;
    } else {
      result = is;
    }
    return result;
  }

  // Variables declaration - do not modify//GEN-BEGIN:variables
  private javax.swing.JButton cancelButton;
  private javax.swing.JLabel fileLabel;
  private javax.swing.JLabel label;
  private javax.swing.JPanel mainPanel;
  private javax.swing.JProgressBar progressBar;
  // End of variables declaration//GEN-END:variables

}