@Override
public void dragGestureRecognized(DragGestureEvent event) {
TreePath path = tree.getSelectionPath();
if (path != null) {
// Dragged node is a DefaultMutableTreeNode
if (path.getLastPathComponent() instanceof DefaultMutableTreeNode) {
DefaultMutableTreeNode treeNode = (DefaultMutableTreeNode) path.getLastPathComponent();
// This is an ObjectType node
if (treeNode.getUserObject() instanceof ObjectType) {
ObjectType type = (ObjectType) treeNode.getUserObject();
Cursor cursor = null;
if (event.getDragAction() == DnDConstants.ACTION_COPY) {
cursor = DragSource.DefaultCopyDrop;
}
if (RenderManager.isGood()) {
// The new renderer is initialized
RenderManager.inst().startDragAndDrop(type);
event.startDrag(cursor, new TransferableObjectType(type), RenderManager.inst());
} else {
event.startDrag(cursor, new TransferableObjectType(type));
}
}
}
}
}
/**
* Start the drag if the operation is ok. uses java.awt.datatransfer.StringSelection to transfer
* the label's data
*
* @param e the event object
*/
@Override
public void dragGestureRecognized(DragGestureEvent e) {
logger.info("dragGestureRecognized");
// if the action is ok we go ahead
// otherwise we punt
if ((e.getDragAction() & dragAction) == 0) {
return;
// get the label's text and put it inside a Transferable
// Transferable transferable = new StringSelection(
// DragLabel.this.getText() );
}
Point p =
SwingUtilities.convertPoint(e.getComponent(), e.getDragOrigin(), PaletteElementView.this);
PaletteElementTransferable transferable = new PaletteElementTransferable(getDrawable(), p);
try {
// initial cursor, transferrable, dsource listener
e.startDrag(DrawingPalette.dropKO, transferable, dsListener);
logger.info("Starting drag for " + getGraphicalRepresentation());
getDrawingView().captureDraggedNode(PaletteElementView.this, e);
} catch (Exception idoe) {
logger.warning("Unexpected exception " + idoe);
}
}
/** ************** DragGestureListener ************** */
public void dragGestureRecognized(DragGestureEvent e) {
if (log.isDebugEnabled()) {
log.debug("DragPositionable.dragGestureRecognized ");
}
// Transferable t = getTransferable(this);
e.startDrag(DragSource.DefaultCopyDrop, this, this);
}
/**
* Start the drag if the operation is ok. uses java.awt.datatransfer.StringSelection to transfer
* the label's data
*
* @param e the event object
*/
public void dragGestureRecognized(DragGestureEvent e) {
// if the action is ok we go ahead
// otherwise we punt
System.out.println(e.getDragAction());
if ((e.getDragAction() & DragLabel.this.dragAction) == 0) return;
System.out.println("kicking off drag");
// get the label's text and put it inside a Transferable
// Transferable transferable = new StringSelection( DragLabel.this.getText() );
Transferable transferable = new StringTransferable(DragLabel.this.getText());
// now kick off the drag
try {
// initial cursor, transferrable, dsource listener
e.startDrag(DragSource.DefaultCopyNoDrop, transferable, DragLabel.this.dsListener);
// or if dragSource is a variable
// dragSource.startDrag(e, DragSource.DefaultCopyDrop, transferable, dsListener);
// or if you'd like to use a drag image if supported
/*
if(DragSource.isDragImageSupported() )
// cursor, image, point, transferrable, dsource listener
e.startDrag(DragSource.DefaultCopyDrop, image, point, transferable, dsListener);
*/
} catch (InvalidDnDOperationException idoe) {
System.err.println(idoe);
}
}
public void dragGestureRecognized(DragGestureEvent evt) {
if (files == null) return;
if (files.length <= 0) {
return;
}
Icon icn = files[0].getIcon(false);
Toolkit tk = Toolkit.getDefaultToolkit();
if (icn == null) icn = new EmptyIcon();
Dimension dim = tk.getBestCursorSize(icn.getIconWidth(), icn.getIconHeight());
// set up drag image
if (DragSource.isDragImageSupported()) {
BufferedImage buff =
new BufferedImage(dim.width + 100, dim.height, BufferedImage.TYPE_INT_ARGB);
Graphics graphics = buff.getGraphics();
Color color = graphics.getColor();
icn.paintIcon(null, graphics, 0, 0);
graphics.setColor(color);
graphics.setColor(Color.RED);
graphics.drawString(files.length + " Elements", icn.getIconWidth(), dim.height / 2);
try {
evt.startDrag(
DragSource.DefaultCopyDrop,
buff,
new Point(0, 0),
new FileTransferable(files, table.getTableModel()),
this);
} catch (IOException ex) {
Logger.getLogger(FileDragGestureListener.class.getName()).log(Level.SEVERE, null, ex);
}
} else {
BufferedImage buff = new BufferedImage(dim.width, dim.height, BufferedImage.TYPE_INT_ARGB);
Graphics graphics = buff.getGraphics();
icn.paintIcon(null, graphics, 0, 0);
try {
cursor = tk.createCustomCursor(buff, new Point(0, 0), "tempcursor");
evt.startDrag(
cursor,
null,
new Point(0, 0),
new FileTransferable(files, table.getTableModel()),
this);
} catch (IOException ex) {
Logger.getLogger(FileDragGestureListener.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
/** ************** DragGestureListener ************** */
public void dragGestureRecognized(DragGestureEvent e) {
if (log.isDebugEnabled()) {
log.debug("DragJLabel.dragGestureRecognized ");
}
if (okToDrag()) {
e.startDrag(DragSource.DefaultCopyDrop, this, this);
}
}
public void dragGestureRecognized(DragGestureEvent dge) {
Point dragOrigin = dge.getDragOrigin();
int row = AnimatedTileList.this.locationToIndex(dragOrigin);
if (row == -1) { // clicked on empty area
return;
}
Tile tile = (Tile) AnimatedTileList.this.getModel().getElementAt(row);
TileTransferable payload = new TileTransferable();
payload.getTiles().add(tile);
dge.startDrag(null, payload, this);
}
@Override
public void dragGestureRecognized(DragGestureEvent dge) {
Cursor cursor = null;
BufferedImage bi = new BufferedImage(getWidth(), getHeight(), BufferedImage.TYPE_INT_ARGB);
paint(bi.getGraphics());
ImageMover.start(bi, MouseInfo.getPointerInfo().getLocation());
String s = "[ANDITEM]";
if (dge.getDragAction() == DnDConstants.ACTION_COPY) {
cursor = DragSource.DefaultCopyDrop;
}
dge.startDrag(
cursor, new SimpleDragObject.TransferableSimpleDragObject(new SimpleDragObject(s)));
}
/**
* 当从List中选择一项拖放到文件系统或者其他地方时，调用此方法。 这是DragGestureListener接口定义的方法。
*/
public void dragGestureRecognized(DragGestureEvent dragGestureEvent) {
System.out
.println("method: dragGestureRecognized(DragGestureEvent dragGestureEvent)");
if (getSelectedIndex() == -1)
return;
// 获得被选择的项的数据。
Object obj = getSelectedValue();
if (obj == null) {
// 如果没有选择列表中的项，则不能视为一个拖动，则蜂鸣。
System.out.println("Nothing selected - beep");
getToolkit().beep();
} else {
// 将List中被选择的项打包成一个Transfer对象
Hashtable table = (Hashtable) obj;
FileSelection transferable = new FileSelection(new File(
(String) table.get("path")));
// 开始拖放，第一个参数为拖放时的光标；第二个参数为被拖放的数据对象；第三个是拖放拖放源侦听器
dragGestureEvent.startDrag(DragSource.DefaultCopyDrop,
transferable, this);
}
}
// DragGestureListener interface method
public void dragGestureRecognized(final DragGestureEvent e) {
// we should make sure we aren't in edit mode
final InputEvent ievent = e.getTriggerEvent();
if (ievent instanceof MouseEvent) {
// even though I tell dgRecognizer to ignore the the right mouse button,
// it thinks the RMB starts a drag event...argh
if ((((MouseEvent) ievent).getModifiers() & InputEvent.BUTTON3_MASK) != 0) return;
}
// begin dnd
final Point ptDragOrigin = e.getDragOrigin();
final TreePath path = getPathForLocation(ptDragOrigin.x, ptDragOrigin.y);
if (path == null) return;
if (isRootPath(path)) return; // Ignore user trying to drag the root node
// Work out the offset of the drag point from the TreePath bounding rectangle origin
final Rectangle raPath = getPathBounds(path);
_ptOffset.setLocation(ptDragOrigin.x - raPath.x, ptDragOrigin.y - raPath.y);
// Get the cell renderer (which is a JLabel) for the path being dragged
final JLabel lbl =
(JLabel)
getCellRenderer()
.getTreeCellRendererComponent(
this, // tree
path.getLastPathComponent(), // value
false, // isSelected (dont want a colored background)
this.isExpanded(path), // isExpanded
getModel().isLeaf(path.getLastPathComponent()), // isLeaf
0, // row (not important for rendering)
false // hasFocus (dont want a focus rectangle)
);
lbl.setSize(
(int) raPath.getWidth(),
(int) raPath.getHeight()); // <-- The layout manager would normally do this
// Get a buffered image of the selection for dragging a ghost image
_imgGhost =
new BufferedImage(
(int) raPath.getWidth(), (int) raPath.getHeight(), BufferedImage.TYPE_INT_ARGB_PRE);
final Graphics2D g2 = _imgGhost.createGraphics();
// Ask the cell renderer to paint itself into the BufferedImage
g2.setComposite(
AlphaComposite.getInstance(AlphaComposite.SRC, 0.5f)); // Make the image ghostlike
lbl.paint(g2);
// Now paint a gradient UNDER the ghosted JLabel text (but not under the icon if any)
// Note: this will need tweaking if your icon is not positioned to the left of the text
final Icon icon = lbl.getIcon();
final int nStartOfText = (icon == null) ? 0 : icon.getIconWidth() + lbl.getIconTextGap();
g2.setComposite(
AlphaComposite.getInstance(AlphaComposite.DST_OVER, 0.5f)); // Make the gradient ghostlike
g2.setPaint(
new GradientPaint(
nStartOfText,
0,
SystemColor.controlShadow,
getWidth(),
0,
new Color(255, 255, 255, 0)));
g2.fillRect(nStartOfText, 0, getWidth(), _imgGhost.getHeight());
g2.dispose();
setSelectionPath(path); // Select this path in the tree
// Wrap the path being transferred into a Transferable object
final Transferable transferable = new CTransferableTreePath(path);
// Remember the path being dragged (because if it is being moved, we will have to delete it
// later)
_pathSource = path;
// We pass our drag image just in case it IS supported by the platform
e.startDrag(null, _imgGhost, new Point(5, 5), transferable, this);
}
@Override
public void dragGestureRecognized(DragGestureEvent dge) {
dge.startDrag(DragSource.DefaultCopyDrop, this);
}
/** A Drag gesture has been recognized. */
public void dragGestureRecognized(DragGestureEvent dge) {
JComponent c = (JComponent) dge.getComponent();
DefaultTransferHandler th = (DefaultTransferHandler) c.getTransferHandler();
Transferable t = th.createTransferable(c);
if (t != null) {
scrolls = c.getAutoscrolls();
c.setAutoscrolls(false);
try {
if (c instanceof JLabel && ((JLabel) c).getIcon() instanceof ImageIcon) {
Toolkit tk = Toolkit.getDefaultToolkit();
ImageIcon imageIcon = ((ImageIcon) ((JLabel) c).getIcon());
Dimension bestSize =
tk.getBestCursorSize(imageIcon.getIconWidth(), imageIcon.getIconHeight());
if (bestSize.width == 0 || bestSize.height == 0) {
dge.startDrag(null, t, this);
return;
}
Image image;
if (bestSize.width > bestSize.height) {
bestSize.height =
(int)
((((double) bestSize.width) / ((double) imageIcon.getIconWidth()))
* imageIcon.getIconHeight());
} else {
bestSize.width =
(int)
((((double) bestSize.height) / ((double) imageIcon.getIconHeight()))
* imageIcon.getIconWidth());
}
image =
imageIcon
.getImage()
.getScaledInstance(bestSize.width, bestSize.height, Image.SCALE_DEFAULT);
/*
We have to use a MediaTracker to ensure that the
image has been scaled before we use it.
*/
MediaTracker mt = new MediaTracker(c);
mt.addImage(image, 0, bestSize.width, bestSize.height);
try {
mt.waitForID(0);
} catch (InterruptedException e) {
dge.startDrag(null, t, this);
return;
}
Point point = new Point(bestSize.width / 2, bestSize.height / 2);
Cursor cursor;
try {
cursor = tk.createCustomCursor(image, point, "freeColDragIcon");
} catch (RuntimeException re) {
cursor = null;
}
// Point point = new Point(0, 0);
dge.startDrag(cursor, t, this);
} else {
dge.startDrag(null, t, this);
}
return;
} catch (RuntimeException re) {
c.setAutoscrolls(scrolls);
}
}
th.exportDone(c, null, NONE);
}