private static void addListener(JComponent comp, DropTargetListener listener) {
DropTarget target = comp.getDropTarget();
if (target == null) {
comp.setDropTarget(new DropTarget(comp, listener));
} else {
try {
target.addDropTargetListener(listener);
} catch (TooManyListenersException e) {
Log.log(e);
}
}
}
private void makeDropTarget(
final java.io.PrintStream out, final java.awt.Component c, boolean recursive) {
// Make drop target
final java.awt.dnd.DropTarget dt = new java.awt.dnd.DropTarget();
try {
dt.addDropTargetListener(dropListener);
} // end try
catch (java.util.TooManyListenersException e) {
e.printStackTrace();
log(
out,
"FileDrop: Drop will not work due to previous error. Do you have another listener attached?");
} // end catch
// Listen for hierarchy changes and remove the drop target when the parent gets cleared out.
c.addHierarchyListener(
new java.awt.event.HierarchyListener() {
public void hierarchyChanged(java.awt.event.HierarchyEvent evt) {
log(out, "FileDrop: Hierarchy changed.");
java.awt.Component parent = c.getParent();
if (parent == null) {
c.setDropTarget(null);
log(out, "FileDrop: Drop target cleared from component.");
} // end if: null parent
else {
new java.awt.dnd.DropTarget(c, dropListener);
log(out, "FileDrop: Drop target added to component.");
} // end else: parent not null
} // end hierarchyChanged
}); // end hierarchy listener
if (c.getParent() != null) {
new java.awt.dnd.DropTarget(c, dropListener);
}
if (recursive && (c instanceof java.awt.Container)) {
// Get the container
java.awt.Container cont = (java.awt.Container) c;
// Get it's components
java.awt.Component[] comps = cont.getComponents();
// Set it's components as listeners also
for (int i = 0; i < comps.length; i++) {
makeDropTarget(out, comps[i], recursive);
}
} // end if: recursively set components as listener
} // end dropListener
/** @return */
private static Component getActiveArea() {
if (activeArea == null) {
activeArea =
new BufferedImagePanel() {
public void paintComponent(Graphics g) {
super.paintComponent(g);
if (onlyPDFs == null) {
return;
}
// draw list of file names
final Graphics2D g2d = (Graphics2D) g;
g2d.setRenderingHints(GraphicsUtils.getBestRenderingHints());
g2d.setColor(TRANSLUCENT_GRAY);
g2d.setFont(FONT);
int stringY = (int) ((activeArea.getHeight() - onlyPDFs.size() * 40) / 2.0);
for (File f : onlyPDFs) {
g2d.drawString(f.getName(), 50, stringY);
stringY += 50;
}
}
};
activeArea.setBorder(BorderFactory.createMatteBorder(10, 10, 10, 10, Color.LIGHT_GRAY));
activeArea.setBackground(Color.DARK_GRAY);
fileTransferHandler = new FileTransferHandler();
activeArea.setTransferHandler(fileTransferHandler);
try {
dropTarget = new DropTarget();
dropTarget.setComponent(activeArea);
dropTarget.addDropTargetListener(getDropTargetAdapter());
} catch (TooManyListenersException e) {
e.printStackTrace();
}
pdfLogo = ImageCache.loadBufferedImage(PaperToolkit.getDataFile("icons/pdfIcon.png"));
}
return activeArea;
}
public DragDropTest_ModeMemoryStream() throws Exception {
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setBounds(0, 0, 400, 300);
this.setVisible(true);
this.setTitle("Example for MODE_MEMORY_STREAM");
JLabel txt = new JLabel("Drop here");
this.getContentPane().add(txt);
txt.setVisible(true);
JButton button = new JButton("Paste from clipboard");
this.getContentPane().add(button, "South");
DropTarget dropTarget = new DropTarget();
dropTarget.setComponent(this);
dropTarget.addDropTargetListener(
new DropTargetAdapter() {
@Override
public void dragEnter(java.awt.dnd.DropTargetDragEvent dtde) {
boolean dropFiles =
dtde.getTransferable().isDataFlavorSupported(DataFlavor.javaFileListFlavor);
dropFiles |= OutlookDD.isDataAvail(); // true, if this is a D&D operation from Outlook
System.out.println("enter: file list avail=" + dropFiles);
super.dragEnter(dtde);
};
@Override
public void dragOver(java.awt.dnd.DropTargetDragEvent dtde) {
boolean dropFiles =
dtde.getTransferable().isDataFlavorSupported(DataFlavor.javaFileListFlavor);
dropFiles |= OutlookDD.isDataAvail(); // true, if this is a D&D operation from Outlook
System.out.println("over: file list avail=" + dropFiles);
int action = dtde.getDropAction();
if (!dropFiles) action = DnDConstants.ACTION_NONE;
// Un-comment this line, if you do not want to remove the Email from Outlook:
// if (action == DnDConstants.ACTION_MOVE) action = DnDConstants.ACTION_COPY;
dtde.acceptDrag(action);
super.dragOver(dtde);
};
public void drop(DropTargetDropEvent dtde) {
try {
int action = dtde.getDropAction();
// Un-comment this line, if you do not want to remove the Email from Outlook:
// if (action == DnDConstants.ACTION_MOVE) action = DnDConstants.ACTION_COPY;
dtde.acceptDrop(action);
Transferable t = dtde.getTransferable();
if (OutlookDD.isDataAvail()) { // true, if this is a D&D operation from Outlook
try {
OutlookData outlData = OutlookDD.getData();
handleOutlookData(outlData);
} finally {
OutlookDD.release();
}
// // Test: other heavyweight components do not disturb the D&D
// functionality
// SwingUtilities.invokeLater(new Runnable() {
// public void run() {
// for (int i = 0; i < 3; i++) {
// JDialog dlg = new JDialog();
// dlg.setBounds(10,10, 300, 300);
// dlg.setTitle("Dialog");
// JTextField txt = new JTextField();
// dlg.add(txt);
// dlg.setVisible(true);
// }
// }
// });
} else if (t.isDataFlavorSupported(DataFlavor.javaFileListFlavor)) {
List<?> list = (List<?>) t.getTransferData(DataFlavor.javaFileListFlavor);
for (Object o : list) {
System.out.println("file=" + o);
}
}
} catch (Exception e) {
e.printStackTrace();
} finally {
dtde.dropComplete(true);
}
}
});
// On-click-handler for button "Paste..."
button.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent evt) {
// First check for Outlook clipboard data
if (OutlookDD.isClipboardDataAvail()) {
try {
OutlookData outlData = OutlookDD.getClipboardData();
handleOutlookData(outlData);
} catch (Exception e) {
e.printStackTrace();
} finally {
OutlookDD.release();
}
}
// Handle other clipboard formats using the
// AWT clipboard functions.
else {
String text = getTextFromSystemClipboard();
System.out.println("text from clipboard=" + text);
}
}
});
}
public GraphDesktopController(
GraphDesktopListener listener,
ISession session,
GraphPlugin plugin,
ModeManager modeManager,
boolean showDndDesktopImageAtStartup) {
_listener = listener;
_session = session;
_plugin = plugin;
_graphPluginResources = new GraphPluginResources(_plugin);
ImageIcon startUpImage = null;
if (showDndDesktopImageAtStartup) {
startUpImage = _graphPluginResources.getIcon(GraphPluginResources.IKeys.DND);
}
_desktopPane = new GraphDesktopPane(_session.getApplication(), startUpImage);
_desktopPane.setBackground(Color.white);
_modeManager = modeManager;
DropTarget dt = new DropTarget();
try {
dt.addDropTargetListener(
new DropTargetAdapter() {
public void drop(DropTargetDropEvent dtde) {
onTablesDroped(dtde);
}
});
} catch (TooManyListenersException e) {
throw new RuntimeException(e);
}
_desktopPane.setDropTarget(dt);
_desktopPane.addMouseListener(
new MouseAdapter() {
public void mouseClicked(MouseEvent e) {
onMouseClicked(e);
}
public void mousePressed(MouseEvent e) {
onMousePressed(e);
}
public void mouseReleased(MouseEvent e) {
onMouseReleased(e);
}
});
_desktopPane.addMouseMotionListener(
new MouseMotionAdapter() {
public void mouseDragged(MouseEvent e) {
onMouseDragged(e);
}
});
createPopUp();
}