source: extensions/jiwigo/trunk/src/main/java/fr/mael/jiwigo/ui/comments/CommentsDialog.java @ 6821

package fr.mael.jiwigo.ui.comments;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.util.List;

import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;

import fr.mael.jiwigo.Main;
import fr.mael.jiwigo.om.Comment;
import fr.mael.jiwigo.service.CommentService;
import fr.mael.jiwigo.transverse.util.Messages;
import fr.mael.jiwigo.transverse.util.Outil;

/**
   Copyright (c) 2010, Mael
   All rights reserved.

   Redistribution and use in source and binary forms, with or without
   modification, are permitted provided that the following conditions are met:
    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in the
      documentation and/or other materials provided with the distribution.
    * Neither the name of jiwigo nor the
      names of its contributors may be used to endorse or promote products
      derived from this software without specific prior written permission.

   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
   ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   DISCLAIMED. IN NO EVENT SHALL Mael BE LIABLE FOR ANY
   DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   
 * @author mael
 * dialog affichant les commentaires d'une image et permettant d'en ajouter un
 */
public class CommentsDialog extends JDialog implements ActionListener {
    /**
     * Logger
     */
    public static final org.apache.commons.logging.Log LOG = org.apache.commons.logging.LogFactory
            .getLog(CommentsDialog.class);
    /**
     * booleen permettant d'alterner les couleurs des commentaires
     */
    private boolean alternate = true;
    /**
     * area permettant d'écrire un nouveau commentaire
     */
    private JTextArea textArea = new JTextArea();
    /**
     * bouton d'envoi d'un commentaire
     */
    private JButton boutonEnvoyer = new JButton("Ok");

    /**
     * id de l'image
     */
    private Integer imageId;
    /**
     * panel qui permet de scroller sur les commentaires
     */
    private JPanel panelScrollCommentaires = new JPanel(new GridBagLayout());
    /**
     * panel qui permet d'ajouter un commentaire
     */
    private JPanel panelAjouterCommentaire = new JPanel(new FlowLayout());

    /**
     * Scrollpane qui permet de scroller sur l'area 
     */
    private JScrollPane scrollPaneArea;
    /**
     * scrollpane qui permet de scroller sur les commentaires
     */
    private JScrollPane scrollPaneCommentaires;

    /**
     * Constructeur
     * @param imageId id de l'image
     */
    public CommentsDialog(JFrame parent, Integer imageId) {
        super(parent);
        this.imageId = imageId;
        this.setTitle(Messages.getMessage("commentaires"));

        panelScrollCommentaires.setOpaque(true);
        scrollPaneCommentaires = new JScrollPane(panelScrollCommentaires, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
                JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
        scrollPaneArea = new JScrollPane(textArea, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
                JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
        scrollPaneArea.setPreferredSize(new Dimension(400, 100));
        scrollPaneCommentaires.setPreferredSize(new Dimension(700, 500));
        rafraichir();
        this.setSize(new Dimension(700, 700));
        this.setLocationRelativeTo(null);
        this.setVisible(true);

    }

    private void rafraichir() {
        this.getContentPane().removeAll();
        try {
            List<Comment> commentsForImage = CommentService.getInstance().lister(imageId);
            GridBagConstraints c = new GridBagConstraints();
            c.insets = new Insets(3, 3, 3, 3);
            c.gridx = 0;
            c.gridy = 0;
            //boucle sur tous les commentaires
            for (Comment comment : commentsForImage) {
                CommentPanel panel;
                if (alternate) {
                    panel = new CommentPanel(new Color(153, 204, 51), comment.getContent(), comment.getAuthor(),
                            comment.getDate());
                } else {
                    panel = new CommentPanel(new Color(77, 204, 51), comment.getContent(), comment.getAuthor(), comment
                            .getDate());
                }
                alternate = !alternate;
                panelScrollCommentaires.add(panel, c);
                c.gridy++;
            }
        } catch (Exception e) {
            LOG.error(Outil.getStackTrace(e));
            JOptionPane.showMessageDialog(null, Messages.getMessage("commentListingError"), Messages
                    .getMessage("error"), JOptionPane.ERROR_MESSAGE);
        }
        panelAjouterCommentaire.add(scrollPaneArea);
        boutonEnvoyer.addActionListener(this);
        panelAjouterCommentaire.add(boutonEnvoyer);
        this.getContentPane().setLayout(new BorderLayout());
        this.getContentPane().add(scrollPaneCommentaires, BorderLayout.NORTH);
        this.getContentPane().add(panelAjouterCommentaire, BorderLayout.CENTER);
        this.getContentPane().repaint();
        ((JPanel) this.getContentPane()).revalidate();
    }

    @Override
    public void actionPerformed(ActionEvent arg0) {
        String text = textArea.getText();
        //on n'envoie pas de commentaire vide
        if (text.equals("")) {
            JOptionPane.showMessageDialog(null, Messages.getMessage("emptyCommentError"), Messages.getMessage("error"),
                    JOptionPane.ERROR_MESSAGE);
        } else {
            boolean reussite = true;
            try {
                reussite = CommentService.getInstance().creer(text, this.imageId, Main.sessionManager.getLogin());
            } catch (IOException e) {
                reussite = false;
                LOG.error(Outil.getStackTrace(e));
            }
            if (reussite) {
                rafraichir();
            } else {
                JOptionPane.showMessageDialog(null, Messages.getMessage("addCommentError"), Messages
                        .getMessage("error"), JOptionPane.ERROR_MESSAGE);
            }
        }

    }
}