| gvSIG desktop 1

/*

 *  $Id: HTMLLicencePanel.java,v 1.1 2006/06/14 07:29:07 cesar Exp $

 *  IzPack

 *  Copyright (C) 2001-2004 Julien Ponge

 *

 *  File :               HTMLLicencePanel.java

 *  Description :        A panel to prompt the user for a licence agreement.

 *  Author's email :     julien@izforge.com

 *  Author's Website :   http://www.izforge.com

 *

 *  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 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.

 *

 *  You should have received a copy of the GNU General Public License

 *  along with this program; if not, write to the Free Software

 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

 */

package com.izforge.izpack.panels;

import java.awt.GridBagConstraints;

import java.awt.GridBagLayout;

import java.awt.Insets;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.net.URL;

import javax.swing.ButtonGroup;

import javax.swing.JEditorPane;

import javax.swing.JLabel;

import javax.swing.JRadioButton;

import javax.swing.JScrollPane;

import javax.swing.event.HyperlinkEvent;

import javax.swing.event.HyperlinkListener;

import com.izforge.izpack.gui.LabelFactory;

import com.izforge.izpack.installer.InstallData;

import com.izforge.izpack.installer.InstallerFrame;

import com.izforge.izpack.installer.IzPanel;

import com.izforge.izpack.installer.ResourceManager;

/**

 *  The IzPack HTML license panel.

 *

 * @author     Julien Ponge

 */

public class HTMLLicencePanel

  extends IzPanel

  implements HyperlinkListener, ActionListener

{

  /**  The layout. */

  private GridBagLayout layout;

  /**  The layout constraints. */

  private GridBagConstraints gbConstraints;

  /**  The info label. */

  private JLabel infoLabel;

  /**  The text area. */

  private JEditorPane textArea;

  /**  The radio buttons. */

  private JRadioButton yesRadio, noRadio;

  /**

   *  The constructor.

   *

   * @param  idata   The installation data.

   * @param  parent  Description of the Parameter

   */

  public HTMLLicencePanel(InstallerFrame parent, InstallData idata)

  {

    super(parent, idata);

    // We initialize our layout

    layout = new GridBagLayout();

    gbConstraints = new GridBagConstraints();

    setLayout(layout);

    // We load the licence

    loadLicence();

    // We put our components

    infoLabel =

      LabelFactory.create(

        parent.langpack.getString("LicencePanel.info"),

        parent.icons.getImageIcon("history"),

        JLabel.TRAILING);

    parent.buildConstraints(gbConstraints, 0, 0, 2, 1, 1.0, 0.0);

    gbConstraints.insets = new Insets(5, 5, 5, 5);

    gbConstraints.fill = GridBagConstraints.NONE;

    gbConstraints.anchor = GridBagConstraints.WEST;

    layout.addLayoutComponent(infoLabel, gbConstraints);

    add(infoLabel);

    try

    {

      textArea = new JEditorPane();

      textArea.setEditable(false);

      textArea.addHyperlinkListener(this);

      JScrollPane scroller = new JScrollPane(textArea);

      textArea.setPage(loadLicence());

      parent.buildConstraints(gbConstraints, 0, 1, 2, 1, 1.0, 1.0);

      gbConstraints.anchor = GridBagConstraints.CENTER;

      gbConstraints.fill = GridBagConstraints.BOTH;

      layout.addLayoutComponent(scroller, gbConstraints);

      add(scroller);

    } catch (Exception err)

    {

      err.printStackTrace();

    }

    ButtonGroup group = new ButtonGroup();

    yesRadio =

      new JRadioButton(parent.langpack.getString("LicencePanel.agree"), false);

    group.add(yesRadio);

    parent.buildConstraints(gbConstraints, 0, 2, 1, 1, 1.0, 0.0);

    gbConstraints.anchor = GridBagConstraints.WEST;

    gbConstraints.fill = GridBagConstraints.NONE;

    layout.addLayoutComponent(yesRadio, gbConstraints);

    add(yesRadio);

    yesRadio.addActionListener(this);

    noRadio =

      new JRadioButton(

      parent.langpack.getString("LicencePanel.notagree"), 

      true);

    group.add(noRadio);

    parent.buildConstraints(gbConstraints, 0, 3, 1, 1, 1.0, 0.0);

    gbConstraints.anchor = GridBagConstraints.WEST;

    gbConstraints.fill = GridBagConstraints.NONE;

    gbConstraints.insets = new Insets(0, 5, 5, 5);

    layout.addLayoutComponent(noRadio, gbConstraints);

    add(noRadio);

    noRadio.addActionListener(this);

    setInitialFocus(textArea);

  }

  /**

   *  Loads the license text.

   *

   * @return    The license text URL.

   */

  private URL loadLicence()

  {

    String resNamePrifix = "HTMLLicencePanel.licence";

    try

    {

      return ResourceManager.getInstance().getURL(resNamePrifix);

    } catch (Exception ex)

    {

      ex.printStackTrace();

    }

    return null;

  }

  /**

   *  Actions-handling method (here it launches the installation).

   *

   * @param  e  The event.

   */

  public void actionPerformed(ActionEvent e)

  {

    if (yesRadio.isSelected())

      parent.unlockNextButton();

    else

      parent.lockNextButton();

  }

  /**

   *  Indicates wether the panel has been validated or not.

   *

   * @return    true if the user agrees with the license, false otherwise.

   */

  public boolean isValidated()

  {

    if (noRadio.isSelected())

    {

      parent.exit();

      return false;

    } else

      return (yesRadio.isSelected());

  }

  /**

   *  Hyperlink events handler.

   *

   * @param  e  The event.

   */

  public void hyperlinkUpdate(HyperlinkEvent e)

  {

    try

    {

      if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED)

        textArea.setPage(e.getURL());

    } catch (Exception err)

    {

    }

  }

  /**  Called when the panel becomes active.  */

  public void panelActivate()

  {

    if (!yesRadio.isSelected())

      parent.lockNextButton();

  }

}