1 package dessiner;
  2 import javax.swing.*;
  3 import javax.swing.filechooser.FileFilter;
  4 import java.awt.*;
  5 import java.awt.event.WindowAdapter;
  6 import java.awt.event.WindowEvent;
  7 import java.awt.event.ActionListener;
  8 import java.awt.event.ActionEvent;
  9 import java.io.File;
 10 import java.io.IOException;
 11 /**
 12  * Partie Swing de l'application
 13  */
 14 public class TraceurSwing extends JFrame implements ActionListener, SettingsUpdateListener {
 15 
 16     protected JButton sauve, exit, update;
 17 
 18     protected JTextField minX, minY, maxX, maxY;
 19 
 20     protected GraphePanel graphePanel;
 21     /**
 22      * constructeur à partir d'un Graphe
 23      * @param graphe
 24      */
 25     public TraceurSwing(Graphe graphe) {
 26         sauve = new JButton("Sauve");
 27         sauve.addActionListener(this);
 28 
 29         exit = new JButton("Sortie");
 30         exit.addActionListener(this);
 31 
 32         JPanel toolbar = new JPanel(new FlowLayout(FlowLayout.RIGHT));
 33 
 34         minX = new JTextField(String.valueOf(graphe.traceurSettings.getMinX()));
 35         minY = new JTextField(String.valueOf(graphe.traceurSettings.getMinY()));
 36         maxX = new JTextField(String.valueOf(graphe.traceurSettings.getMaxX()));
 37         maxY = new JTextField(String.valueOf(graphe.traceurSettings.getMaxY()));
 38 
 39         toolbar.add(new JLabel("X: "));
 40         toolbar.add(minX);
 41         toolbar.add(new JLabel("-"));
 42         toolbar.add(maxX);
 43         toolbar.add(new JLabel(", Y:"));
 44         toolbar.add(minY);
 45         toolbar.add(new JLabel("-"));
 46         toolbar.add(maxY);
 47 
 48         update = new JButton("Mise-à-jour");
 49         update.addActionListener(this);
 50         toolbar.add(update);
 51         toolbar.add(sauve);
 52         toolbar.add(exit);
 53         // graphePanel contient la partie graphique
 54         graphePanel = new GraphePanel(this);
 55         addWindowListener(new WindowAdapter() {
 56             @Override
 57             public void windowClosing(WindowEvent e) {
 58                 System.exit(0);
 59             }
 60         }
 61         );
 62         Container c = getContentPane();
 63         c.add(toolbar, BorderLayout.SOUTH);
 64         c.add(graphePanel, BorderLayout.CENTER);
 65         setSize(640, 480);
 66         setTitle("Traceur");
 67         setVisible(true);
 68 
 69         graphePanel.setGraph(graphe);
 70 
 71     }
 72 
 73     /**
 74      * mise à jour
 75      * @param settings
 76      */
 77     public void graphUpdated(TraceurSettings settings) {
 78         minX.setText(String.valueOf(settings.getMinX()));
 79         minY.setText(String.valueOf(settings.getMinY()));
 80         maxX.setText(String.valueOf(settings.getMaxX()));
 81         maxY.setText(String.valueOf(settings.getMaxY()));
 82     }
 83 
 84     public void actionPerformed(ActionEvent e) {
 85 
 86         if (e.getSource() == update) {
 87             Graphe g = graphePanel.getGraph();
 88             g.traceurSettings.setMinX(Double.parseDouble(minX.getText()));
 89             g.traceurSettings.setMaxX(Double.parseDouble(maxX.getText()));
 90             g.traceurSettings.setMinY(Double.parseDouble(minY.getText()));
 91             g.traceurSettings.setMaxY(Double.parseDouble(maxY.getText()));
 92             graphePanel.repaint();
 93         }
 94 
 95         // Suve une image du graphe
 96         if (e.getSource() == sauve) {
 97             JFileChooser filechooser = new JFileChooser(System.getProperty("user.home"));
 98             filechooser.setDialogTitle("Sauver image du graphe");
 99             filechooser.setSelectedFile(new File(filechooser.getCurrentDirectory(), "graphe.png"));
100             filechooser.setFileFilter(new FileFilter() {
101                 public boolean accept(File f) {
102                     String extension = f.getName().substring(f.getName().lastIndexOf('.') + 1).toLowerCase();
103                     if (f.isDirectory()) return true;
104                     if (extension.equals("bmp")) return true;
105                     if (extension.equals("jpg")) return true;
106                     if (extension.equals("png")) return true;
107                     return false;
108                 }
109 
110                 public String getDescription() {
111                     return "Image Files: jpg, png, bmp";
112                 }
113             });
114             int action = filechooser.showSaveDialog(this);
115             if (action == JFileChooser.APPROVE_OPTION) {
116                 File f = filechooser.getSelectedFile();
117                 try {
118                     String extension = f.getName().substring(f.getName().lastIndexOf(".") + 1);
119                     javax.imageio.ImageIO.write(graphePanel.getImage(), extension, f);
120                 } catch (IOException err) {
121                     JOptionPane.showMessageDialog(this, "Impossible de Sauvegarder: " + err.getMessage());
122                 }
123             }
124         }
125 
126         // Exit
127         if (e.getSource() == exit) {
128             System.exit(0);
129         }
130 
131     }
132 
133 }
134 
135