/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/*
 * PresenceDrawPanel.java
 *
 * Created on 29 mai 2011, 23:11:59
 */
package feuille.karaoke.lib;

import java.awt.Color;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.io.File;
import javax.swing.JFileChooser;

/**
 * <p>This class is a panel that returns if we have drawing file in the chosen 
 * directory or not by a message..<br />Cette classe est un panel qui retourne 
 * un message en fonction de la présence ou non de fichier de dessin dans 
 * un répertoire.</p>
 * @author The Wingate 2940
 */
public class PresenceDrawPanel extends javax.swing.JPanel implements PropertyChangeListener {
    
    String OKMessage = "<html><h1>OK";
    String NOKMessage = "<html><h1>No files";

    /** <p>Creates new form PresenceDrawPanel.<br />Crée un nouveau formulaire 
     PresenceDrawPanel.</p>*/
    @SuppressWarnings("LeakingThisInConstructor")
    public PresenceDrawPanel(JFileChooser fc) {
        initComponents();
        fc.addPropertyChangeListener(this);
        jLabel1.setForeground(Color.red);
        jLabel1.setText("<html><h1>?");
    }

    /** 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.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        jLabel1 = new javax.swing.JLabel();

        jLabel1.setBackground(new java.awt.Color(255, 255, 255));
        jLabel1.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        jLabel1.setText("jLabel1");
        jLabel1.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));
        jLabel1.setOpaque(true);

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
        this.setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jLabel1, javax.swing.GroupLayout.DEFAULT_SIZE, 115, Short.MAX_VALUE)
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jLabel1, javax.swing.GroupLayout.DEFAULT_SIZE, 171, Short.MAX_VALUE)
                .addContainerGap())
        );
    }// </editor-fold>//GEN-END:initComponents
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JLabel jLabel1;
    // End of variables declaration//GEN-END:variables

    /** <p>Return a message.<br />Retourne un message.</p> */
    @Override
    public void propertyChange(PropertyChangeEvent evt) {
        String prop = evt.getPropertyName();
        //If the directory changed.
        if (JFileChooser.DIRECTORY_CHANGED_PROPERTY.equals(prop)) {
            File f = (File)evt.getNewValue();
            int numFiles = countAssDrawingFiles(f);
            if(numFiles>0){
                jLabel1.setForeground(Color.green);
                jLabel1.setText(OKMessage);                
            }else{
                jLabel1.setForeground(Color.red);
                jLabel1.setText(NOKMessage);                
            }
        }
    }
    
    /** <p>Return the count of drawing file.<br />
     * Retourne le nombre de fichier de dessin.</p> */
    private int countAssDrawingFiles(File dir){
        int count = 0;
        for(File file : dir.listFiles()){
            if(file.getAbsolutePath().endsWith(".adf")){
                count += 1;
            }
        }
        return count;
    }
}