Java Code Examples for java.awt.dnd.DropTargetDragEvent#getLocation()

The following examples show how to use java.awt.dnd.DropTargetDragEvent#getLocation() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: AbstractTreeTransferHandler.java From binnavi with Apache License 2.0

6 votes

@Override
public final void dragEnter(final DropTargetDragEvent dtde) {
  final Point pt = dtde.getLocation();
  final int action = dtde.getDropAction();
  if (drawImage) {
    paintImage(pt);
  }

  final Transferable transferable = dtde.getTransferable();

  if (!transferable.isDataFlavorSupported(TransferableNode.NODE_FLAVOR)) {
    if (canPerformAction(tree, dtde.getCurrentDataFlavorsAsList().get(0), dtde.getTransferable(),
        action, pt)) {
      dtde.acceptDrag(action);
    } else {
      dtde.rejectDrag();
    }
  } else {
    if (canPerformAction(tree, draggedNode, action, pt)) {
      dtde.acceptDrag(action);
    } else {
      dtde.rejectDrag();
    }
  }
}

Example 2

Source File: AbstractReportElementDragHandler.java From pentaho-reporting with GNU Lesser General Public License v2.1

6 votes

public int dragStarted( final DropTargetDragEvent event,
                        final ReportElementEditorContext dragContext,
                        final ElementMetaData elementMetaData,
                        final String fieldName ) {
  final Container representationContainer = dragContext.getRepresentationContainer();
  final ReportDocumentContext renderContext = dragContext.getRenderContext();
  final Point pos = event.getLocation();
  final Point2D point = dragContext.normalize( pos );
  if ( point.getX() < 0 || point.getY() < 0 ) {
    representationContainer.removeAll();
    return DnDConstants.ACTION_NONE;
  }

  if ( isFilteredDropZone( event, dragContext, elementMetaData, point ) ) {
    representationContainer.removeAll();
    return DnDConstants.ACTION_NONE;
  }
  representation.setZoom( renderContext.getZoomModel().getZoomAsPercentage() );
  representation.setVisible( true );
  representation.setText( elementMetaData.getDisplayName( Locale.getDefault() ) );
  representation.setLocation( pos.x, pos.y );
  representation.setSize( 100, 20 );
  representationContainer.removeAll();
  representationContainer.add( representation );
  return DnDConstants.ACTION_COPY;
}

Example 3

Source File: CalculationTree.java From swing_library with MIT License

6 votes

/**
 * acceptDrag. Can only be an empty node at this stage. In the future we may
 * want to be able to drag and drop to replace nodes rather than just drag
 * onto empty nodes.
 * 
 * @param dtde
 * @return is acceptable
 */
private boolean acceptDrag(DropTargetDragEvent dtde) {
	Point location = dtde.getLocation();

	TreePath path = this.getPathForLocation(location.x, location.y);

	if (path != null) {
		DefaultMutableTreeNode node = (DefaultMutableTreeNode) path
				.getLastPathComponent();

		if ((CalculationObject) node.getUserObject() instanceof EmptyNode
				&& node.isLeaf()) {
			return true;
		}
	}
	return false;
	// DataFlavor[] flavors = dtde.getCurrentDataFlavors();
}

Example 4

Source File: MainPanel.java From java-swing-tips with MIT License

6 votes

private boolean isDropAcceptable(DropTargetDragEvent e) {
  DropTargetContext c = e.getDropTargetContext();
  Transferable t = e.getTransferable();
  DataFlavor[] f = t.getTransferDataFlavors();
  Point pt = e.getLocation();
  targetTabIndex = -1;
  Component o = c.getComponent();
  if (o instanceof JTabbedPane) {
    JTabbedPane jtp = (JTabbedPane) o;
    for (int i = 0; i < jtp.getTabCount(); i++) {
      if (jtp.getBoundsAt(i).contains(pt)) {
        targetTabIndex = i;
        break;
      }
    }
    return targetTabIndex >= 0 && targetTabIndex != jtp.getSelectedIndex() && t.isDataFlavorSupported(f[0]);
  }
  return false;
}

Example 5

Source File: GanttTree2.java From ganttproject with GNU General Public License v3.0

6 votes

@Override
public void dragOver(DropTargetDragEvent dtde) {
  Point pt = dtde.getLocation();
  if (pt.equals(lastEventPoint)) {
    return;
  }
  lastEventPoint = pt;
  TreePath path = getTreeTable().getTree().getPathForLocation(pt.x, pt.y);
  myOverRow = getTreeTable().getRowForPath(path);
  if (path != lastPath) {
    getTreeTable().removeHighlighter(myDragHighlighter);
    lastPath = path;
    hoverTimer.restart();
    getTreeTable().addHighlighter(myDragHighlighter);
  }
}

Example 6

Source File: DndTabbedPaneDropTargetListener.java From bigtable-sql with Apache License 2.0

6 votes

@Override
public void dragOver(final DropTargetDragEvent e)
{
   Point glassPt = e.getLocation();

   if (_dnDTabbedPaneData.getTabbedPane().getTabPlacement() == JTabbedPane.TOP || _dnDTabbedPaneData.getTabbedPane().getTabPlacement() == JTabbedPane.BOTTOM)
   {
      initTargetLeftRightLine(DndTabUtils.getTargetTabIndex(glassPt, _glassPane, _dnDTabbedPaneData.getTabbedPane()));
   }
   else
   {
      initTargetTopBottomLine(DndTabUtils.getTargetTabIndex(glassPt, _glassPane, _dnDTabbedPaneData.getTabbedPane()));
   }
   if (_dnDTabbedPaneData.isHasGhost())
   {
      _glassPane.setPoint(glassPt);
   }
   if (!_glassPt.equals(glassPt)) _glassPane.repaint();
   _glassPt = glassPt;
   autoScrollTest(glassPt);
}

Example 7

Source File: AbstractTreeTransferHandler.java From binnavi with Apache License 2.0

6 votes

@Override
public final void dropActionChanged(final DropTargetDragEvent dtde) {
  final Point pt = dtde.getLocation();
  final int action = dtde.getDropAction();
  if (drawImage) {
    paintImage(pt);
  }
  if (draggedNode == null) {
    if (canPerformAction(tree, dtde.getCurrentDataFlavorsAsList().get(0), dtde.getTransferable(),
        action, pt)) {
      dtde.acceptDrag(action);
    } else {
      dtde.rejectDrag();
    }
  } else {
    if (canPerformAction(tree, draggedNode, action, pt)) {
      dtde.acceptDrag(action);
    } else {
      dtde.rejectDrag();
    }
  }
}

Example 8

Source File: AbstractTreeTransferHandler.java From binnavi with Apache License 2.0

6 votes

@Override
public final void dragOver(final DropTargetDragEvent dtde) {
  final Point pt = dtde.getLocation();
  final int action = dtde.getDropAction();
  tree.autoscroll(pt);
  if (drawImage) {
    paintImage(pt);
  }

  final Transferable transferable = dtde.getTransferable();

  if (!transferable.isDataFlavorSupported(TransferableNode.NODE_FLAVOR)) {
    if (canPerformAction(tree, dtde.getCurrentDataFlavorsAsList().get(0), dtde.getTransferable(),
        action, pt)) {
      dtde.acceptDrag(action);
    } else {
      dtde.rejectDrag();
    }
  } else {
    if (canPerformAction(tree, draggedNode, action, pt)) {
      dtde.acceptDrag(action);
    } else {
      dtde.rejectDrag();
    }
  }
}

Example 9

Source File: CustomizedToolbar.java From pumpernickel with MIT License

5 votes

public void dragOver(DropTargetDragEvent dtde) {
	if (draggingComponent == null) {
		dtde.rejectDrag();
	} else {
		Point p = dtde.getLocation();
		p = SwingUtilities.convertPoint(
				((DropTarget) dtde.getSource()).getComponent(), p,
				CustomizedToolbar.this);
		String[] contents = getContents(p);
		updateContents(contents);
		dtde.acceptDrag(DnDConstants.ACTION_MOVE);
	}
}

Example 10

Source File: AbstractTreeTransferHandler.java From TrakEM2 with GNU General Public License v3.0

5 votes

public final void dropActionChanged(DropTargetDragEvent dtde) {
        Point pt = dtde.getLocation();
        int action = dtde.getDropAction();
        if (drawImage) {
                paintImage(pt);
        }
        if (canPerformAction(tree, draggedNode, action, pt)) {
                dtde.acceptDrag(action);                        
        }
        else {
                dtde.rejectDrag();
        }
}

Example 11

Source File: JTreeUtil.java From Logisim with GNU General Public License v3.0

5 votes

@Override
public final void dropActionChanged(DropTargetDragEvent dtde) {
	Point pt = dtde.getLocation();
	int action = dtde.getDropAction();
	if (drawImage) {
		paintImage(pt);
	}
	if (controller.canPerformAction(tree, draggedNode, action, pt)) {
		dtde.acceptDrag(action);
	} else {
		dtde.rejectDrag();
	}
}

Example 12

Source File: JTreeUtil.java From Logisim with GNU General Public License v3.0

5 votes

@Override
public final void dragOver(DropTargetDragEvent dtde) {
	Point pt = dtde.getLocation();
	int action = dtde.getDropAction();
	autoscroll(tree, pt);
	if (drawImage) {
		paintImage(pt);
	}
	if (controller.canPerformAction(tree, draggedNode, action, pt)) {
		dtde.acceptDrag(action);
	} else {
		dtde.rejectDrag();
	}
}

Example 13

Source File: JTreeUtil.java From Logisim with GNU General Public License v3.0

5 votes

@Override
public final void dragEnter(DropTargetDragEvent dtde) {
	Point pt = dtde.getLocation();
	int action = dtde.getDropAction();
	if (drawImage) {
		paintImage(pt);
	}
	if (controller.canPerformAction(tree, draggedNode, action, pt)) {
		dtde.acceptDrag(action);
	} else {
		dtde.rejectDrag();
	}
}

Example 14

Source File: DnDSupport.java From netbeans with Apache License 2.0

5 votes

private void setupDropLine( DropTargetDragEvent dtde, CategoryList list, int dropIndex ) {
    boolean verticalDropBar = list.getColumnCount() > 1;
    Rectangle rect = list.getCellBounds( dropIndex, dropIndex );
    if( verticalDropBar )
        dropBefore = dtde.getLocation().x < (rect.x + rect.width/2);
    else
        dropBefore = dtde.getLocation().y < (rect.y + rect.height/2);
    Point p1 = rect.getLocation();
    Point p2 = rect.getLocation();
    if( verticalDropBar ) {
        p2.y += rect.height;
        if( !dropBefore ) {
            p1.x += rect.width;
            p2.x += rect.width;
        }
    } else {
        p2.x += rect.width;
        if( !dropBefore ) {
            p1.y += rect.height;
            p2.y += rect.height;
        }
    }
    p1 = SwingUtilities.convertPoint( list, p1, palette.getRootPane() );
    p2 = SwingUtilities.convertPoint( list, p2, palette.getRootPane() );
    Line2D line = new Line2D.Double( p1.x, p1.y, p2.x, p2.y );
    dropPane.setDropLine( line );
    targetItem = (Item)list.getModel().getElementAt( dropIndex );
}

Example 15

Source File: AbstractTreeTransferHandler.java From TrakEM2 with GNU General Public License v3.0

5 votes

public final void dragOver(DropTargetDragEvent dtde) {
        Point pt = dtde.getLocation();
        int action = dtde.getDropAction();
        tree.autoscroll(pt);
        if (drawImage) {
                paintImage(pt);
        }
        if (canPerformAction(tree, draggedNode, action, pt)) {
                dtde.acceptDrag(action);                        
        }
        else {
                dtde.rejectDrag();
        }
}

Example 16

Source File: AbstractTreeTransferHandler.java From TrakEM2 with GNU General Public License v3.0

5 votes

public final void dragEnter(DropTargetDragEvent dtde) {
        Point pt = dtde.getLocation();
        int action = dtde.getDropAction();
        if (drawImage) {
                paintImage(pt);
        }
        if (canPerformAction(tree, draggedNode, action, pt)) {
                dtde.acceptDrag(action);                        
        }
        else {
                dtde.rejectDrag();
        }
}

Example 17

Source File: GenericDNDHandler.java From pentaho-reporting with GNU Lesser General Public License v2.1

5 votes

/**
 * Called when a drag operation is ongoing, while the mouse pointer is still over the operable part of the drop site
 * for the <code>DropTarget</code> registered with this listener.
 *
 * @param dtde the <code>DropTargetDragEvent</code>
 */

public void dragOver( final DropTargetDragEvent dtde ) {
  final Transferable transferable = dtde.getTransferable();

  for ( int i = 0; i < acceptedFlavors.length; i++ ) {
    final DataFlavor acceptedFlavor = acceptedFlavors[ i ];
    if ( transferable.isDataFlavorSupported( acceptedFlavor ) ) {
      // a transfer from the palette.
      try {
        transferData = transferable.getTransferData( acceptedFlavor );
        position = dtde.getLocation();
        flavor = acceptedFlavor;
        final int result = updateDragOver( dtde );
        if ( result > 0 ) {
          dtde.acceptDrag( DnDConstants.ACTION_COPY );
        } else {
          transferData = null;
          position = null;
          flavor = null;
          dtde.rejectDrag();
        }
        break;
      } catch ( Exception e ) {
        if ( logger.isDebugEnabled() ) {
          logger.debug( "ReportPanel.dragOver ", e ); // NON-NLS
        }
        transferData = null;
        position = null;
        flavor = null;
        dtde.rejectDrag();
      }
    }
  }
}

Example 18

Source File: JTableRenderer.java From blog-codes with Apache License 2.0

5 votes

public void dragOver(DropTargetDragEvent e)
{
	if (!((mxGraphTransferHandler) graphContainer.getTransferHandler())
			.isLocalDrag()
			&& JTableRenderer.this != dragSource)
	{
		Point p = e.getLocation();
		int row = rowAtPoint(p);
		getSelectionModel().setSelectionInterval(row, row);
	}
}

Example 19

Source File: UIUtilities.java From gcs with Mozilla Public License 2.0

4 votes

public static Point convertDropTargetDragPointTo(DropTargetDragEvent dtde, Component comp) {
    Point pt = dtde.getLocation();
    convertPoint(pt, dtde.getDropTargetContext().getComponent(), comp);
    return pt;
}

Example 20

Source File: MainPanel.java From java-swing-tips with MIT License

4 votes

@Override public void dragOver(DropTargetDragEvent dtde) {
  DataFlavor[] f = dtde.getCurrentDataFlavors();
  boolean isDataFlavorSupported = f[0].getHumanPresentableName().equals(TreeNodeTransferable.NAME);
  if (!isDataFlavorSupported) {
    // This DataFlavor is not supported(e.g. files from the desktop)
    rejectDrag(dtde);
    return;
  }

  // figure out which cell it's over, no drag to self
  Point pt = dtde.getLocation();
  TreePath path = getPathForLocation(pt.x, pt.y);
  if (Objects.isNull(path)) {
    // Dropped into the non-node locations(e.g. margin area of JTree)
    rejectDrag(dtde);
    return;
  }
  // Object draggingObject;
  // if (!isWebStart()) {
  //   try {
  //     draggingObject = dtde.getTransferable().getTransferData(FLAVOR);
  //   } catch (Exception ex) {
  //     rejectDrag(dtde);
  //     return;
  //   }
  // } else {
  //   draggingObject = getSelectionPath().getLastPathComponent();
  // }
  // MutableTreeNode draggingNode = (MutableTreeNode) draggingObject;

  MutableTreeNode draggingNode = (MutableTreeNode) getSelectionPath().getLastPathComponent();
  DefaultMutableTreeNode targetNode = (DefaultMutableTreeNode) path.getLastPathComponent();

  TreeNode parent = targetNode.getParent();
  if (parent instanceof DefaultMutableTreeNode) {
    DefaultMutableTreeNode ancestor = (DefaultMutableTreeNode) parent;
    if (Arrays.asList(ancestor.getPath()).contains(draggingNode)) {
      // Trying to drop a parent node to a child node
      rejectDrag(dtde);
      return;
    }
  }
  dropTargetNode = targetNode; // (TreeNode) path.getLastPathComponent();
  dtde.acceptDrag(dtde.getDropAction());
  repaint();
}