Importation de fichier avec drag & drop
Résolu
cs_laakelm
Messages postés
4
Date d'inscription
mardi 24 mai 2005
Statut
Membre
Dernière intervention
13 mars 2009
-
20 févr. 2009 à 02:21
BeaverKid Messages postés 1 Date d'inscription dimanche 7 février 2010 Statut Membre Dernière intervention 18 juin 2010 - 18 juin 2010 à 10:41
BeaverKid Messages postés 1 Date d'inscription dimanche 7 février 2010 Statut Membre Dernière intervention 18 juin 2010 - 18 juin 2010 à 10:41
3 réponses
uhrand
Messages postés
491
Date d'inscription
samedi 20 mai 2006
Statut
Membre
Dernière intervention
15 juillet 2012
9
20 févr. 2009 à 07:48
20 févr. 2009 à 07:48
Oui, c'est possible avec drag & drop
import java.awt.*;
import java.awt.datatransfer.*;
import java.io.*;
import java.util.List;
import javax.swing.*;
import javax.swing.table.*;
public class FileDrop1 extends JPanel {
private FileTransferHandler1 transferHandler;
private JTable table;
public FileDrop1() {
super(new BorderLayout());
JPanel dataPanel = new JPanel(new BorderLayout());
dataPanel.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
table = new JTable();
table.setDragEnabled(true);
table.setModel(new DefaultTableModel(4, 1));
transferHandler = new FileTransferHandler1(table);
table.setTransferHandler(transferHandler);
dataPanel.add(new JScrollPane(table));
add(dataPanel, BorderLayout.CENTER);
}
private static void createAndShowGUI() {
JFrame frame = new JFrame("File Drop");
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
FileDrop1 fViewer = new FileDrop1();
frame.setContentPane(fViewer);
frame.setVisible(true);
frame.setSize(800, 600);
}
public static void main(final String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
createAndShowGUI();
}
});
}
}
class FileTransferHandler1 extends TransferHandler {
private DataFlavor fileFlavor;
private JTable table;
FileTransferHandler1(final JTable list) {
this.table = list;
fileFlavor = DataFlavor.javaFileListFlavor;
}
@Override
public boolean importData(final JComponent c, final Transferable t) {
if (!canImport(c, t.getTransferDataFlavors())) {
return false;
}
try {
if (hasFileFlavor(t.getTransferDataFlavors())) {
final List files = (List) t.getTransferData(fileFlavor);
final DefaultTableModel model = (DefaultTableModel) table.getModel();
final File file = (File) files.get(0);
int row = table.getSelectedRow();
int column = table.getSelectedColumn();
model.setValueAt(file.getPath(), row, column);
return true;
}
} catch (final UnsupportedFlavorException ufe) {
System.out.println("importData: unsupported data flavor");
} catch (final IOException ioe) {
System.out.println("importData: I/O exception");
}
return false;
}
@Override
public boolean canImport(final JComponent c, final DataFlavor[] flavors) {
return hasFileFlavor(flavors);
}
private boolean hasFileFlavor(final DataFlavor[] flavors) {
for (int i = 0; i < flavors.length; i++) {
if (fileFlavor.equals(flavors[i])) {
return true;
}
}
return false;
}
}
import java.awt.*;
import java.awt.datatransfer.*;
import java.io.*;
import java.util.List;
import javax.swing.*;
import javax.swing.table.*;
public class FileDrop1 extends JPanel {
private FileTransferHandler1 transferHandler;
private JTable table;
public FileDrop1() {
super(new BorderLayout());
JPanel dataPanel = new JPanel(new BorderLayout());
dataPanel.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
table = new JTable();
table.setDragEnabled(true);
table.setModel(new DefaultTableModel(4, 1));
transferHandler = new FileTransferHandler1(table);
table.setTransferHandler(transferHandler);
dataPanel.add(new JScrollPane(table));
add(dataPanel, BorderLayout.CENTER);
}
private static void createAndShowGUI() {
JFrame frame = new JFrame("File Drop");
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
FileDrop1 fViewer = new FileDrop1();
frame.setContentPane(fViewer);
frame.setVisible(true);
frame.setSize(800, 600);
}
public static void main(final String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
createAndShowGUI();
}
});
}
}
class FileTransferHandler1 extends TransferHandler {
private DataFlavor fileFlavor;
private JTable table;
FileTransferHandler1(final JTable list) {
this.table = list;
fileFlavor = DataFlavor.javaFileListFlavor;
}
@Override
public boolean importData(final JComponent c, final Transferable t) {
if (!canImport(c, t.getTransferDataFlavors())) {
return false;
}
try {
if (hasFileFlavor(t.getTransferDataFlavors())) {
final List files = (List) t.getTransferData(fileFlavor);
final DefaultTableModel model = (DefaultTableModel) table.getModel();
final File file = (File) files.get(0);
int row = table.getSelectedRow();
int column = table.getSelectedColumn();
model.setValueAt(file.getPath(), row, column);
return true;
}
} catch (final UnsupportedFlavorException ufe) {
System.out.println("importData: unsupported data flavor");
} catch (final IOException ioe) {
System.out.println("importData: I/O exception");
}
return false;
}
@Override
public boolean canImport(final JComponent c, final DataFlavor[] flavors) {
return hasFileFlavor(flavors);
}
private boolean hasFileFlavor(final DataFlavor[] flavors) {
for (int i = 0; i < flavors.length; i++) {
if (fileFlavor.equals(flavors[i])) {
return true;
}
}
return false;
}
}
