/** {@inheritDoc} */
public void dragEnter(DropTargetDragEvent evt) {
target = (JComponent) evt.getDropTargetContext().getComponent();
TransferHandler th = target.getTransferHandler();
canImport = th.canImport(target, evt.getCurrentDataFlavors());
if (canImport) {
saveComponentState(target);
lastPosition = evt.getLocation();
}
}
public static class CopyKeyAdapter extends KeyAdapter {
private static final String defaultEditorKitCopyActionName = DefaultEditorKit.copyAction;
private static final String transferHandlerCopyActionName =
(String) TransferHandler.getCopyAction().getValue(Action.NAME);
@Override
public void keyPressed(KeyEvent e) {
// Accept "copy" key strokes
KeyStroke ks = KeyStroke.getKeyStroke(e.getKeyCode(), e.getModifiers());
JComponent comp = (JComponent) e.getSource();
for (int i = 0; i < 3; i++) {
InputMap im = comp.getInputMap(i);
Object key = im.get(ks);
if (defaultEditorKitCopyActionName.equals(key)
|| transferHandlerCopyActionName.equals(key)) {
return;
}
}
// Accept JTable navigation key strokes
if (!tableNavigationKeys.contains(e.getKeyCode())) {
e.consume();
}
}
@Override
public void keyTyped(KeyEvent e) {
e.consume();
}
}
// ======================================================
// ======================================================
private void treeMousePressed(java.awt.event.MouseEvent evt) {
int mask = evt.getModifiers();
if ((mask & MouseEvent.BUTTON1_MASK) != 0) {
TreePath selectedPath = getPathForLocation(evt.getX(), evt.getY());
if (selectedPath == null) return;
DefaultMutableTreeNode node =
(DefaultMutableTreeNode) selectedPath.getPathComponent(selectedPath.getPathCount() - 1);
Object o = node.getUserObject();
if (o instanceof String) {
TransferHandler transfer = this.getTransferHandler();
transfer.exportAsDrag(this, evt, TransferHandler.COPY);
dragged_node = node;
parent.setCursor(renderer.getNodeCursor(node));
}
}
}
@Override
public void mouseDragged(MouseEvent e) {
int ctrlMask = InputEvent.CTRL_DOWN_MASK;
int action =
((e.getModifiersEx() & ctrlMask) == ctrlMask)
? TransferHandler.COPY
: TransferHandler.MOVE;
JTable setTable = (JTable) e.getSource();
// 非選択状態からいきなりドラッグを開始すると cellEditor が残ってしまう問題の workaround
if (setTable.isEditing()) {
setTable.getCellEditor().stopCellEditing();
}
TransferHandler handler = setTable.getTransferHandler();
handler.exportAsDrag(setTable, e, action);
}
public static void ImageToClipBoard(Image i) {
final Clipboard clipboard = java.awt.Toolkit.getDefaultToolkit().getSystemClipboard();
JLabel l = new JLabel("");
l.setIcon(new ImageIcon(i));
l.setTransferHandler(new ImageSelection());
if (clipboard == null) {
System.out.print("\ncb is null");
}
TransferHandler handler = l.getTransferHandler();
if (handler == null) {
System.out.print("\thc is null");
}
handler.exportToClipboard(l, clipboard, TransferHandler.COPY);
}
@Override
public void exportToClipboard(JComponent comp, Clipboard clip, int action) {
super.exportToClipboard(comp, clip, action);
}
