Java DND类代码示例

import org.eclipse.swt.dnd.DND; //导入依赖的package包/类
private void attachDropListener() {
	dropTarget = new DropTarget(targetTable, DND.DROP_MOVE);
	dropTarget.setTransfer(new Transfer[] { TextTransfer.getInstance() });
	dropTarget.addDropListener(new DropTargetAdapter() {
		public void drop(DropTargetEvent event) {
			for (String fieldName : getformatedData((String) event.data)) {
				if(isPropertyAlreadyExists(fieldName)){
					return;
				}else{
					ExcelConfigurationDataStructure excelConfigurationDataStructure = new ExcelConfigurationDataStructure();
					excelConfigurationDataStructure.setFieldName(fieldName);
					listOfExcelConfiguration.add(excelConfigurationDataStructure);
					targetTableViewer.refresh();
					draggedFields.add(fieldName);
					enableDeleteButton();
				}
			}
			combo.setItems(convertToArray(draggedFields));
			combo.select(0);
			top_composite.layout();
			top_composite.getParent().layout();
			highlightDropFields();

		}
	});
}
 

import org.eclipse.swt.dnd.DND; //导入依赖的package包/类
/**
 * Set the clipboard contents. Prompt to retry if clipboard is busy.
 *
 * @param resources
 *            the resources to copy to the clipboard
 * @param fileNames
 *            file names of the resources to copy to the clipboard
 * @param names
 *            string representation of all names
 */
private void setClipboard(final IResource[] resources, final String[] fileNames, final String names) {
	try {
		// set the clipboard contents
		if (fileNames.length > 0) {
			clipboard.setContents(new Object[] { resources, fileNames, names }, new Transfer[] {
					ResourceTransfer.getInstance(), FileTransfer.getInstance(), TextTransfer.getInstance() });
		} else {
			clipboard.setContents(new Object[] { resources, names },
					new Transfer[] { ResourceTransfer.getInstance(), TextTransfer.getInstance() });
		}
	} catch (final SWTError e) {
		if (e.code != DND.ERROR_CANNOT_SET_CLIPBOARD) { throw e; }
		if (MessageDialog.openQuestion(shell, "Problem with copy title", // TODO //$NON-NLS-1$
																			// ResourceNavigatorMessages.CopyToClipboardProblemDialog_title,
				"Problem with copy.")) { //$NON-NLS-1$
			setClipboard(resources, fileNames, names);
		}
	}
}
 

import org.eclipse.swt.dnd.DND; //导入依赖的package包/类
/**
 * This creates a context menu for the viewer and adds a listener as well registering the menu for extension.
 * <!-- begin-user-doc -->
 * <!-- end-user-doc -->
 * @generated
 */
protected void createContextMenuFor ( StructuredViewer viewer )
{
    MenuManager contextMenu = new MenuManager ( "#PopUp" ); //$NON-NLS-1$
    contextMenu.add ( new Separator ( "additions" ) ); //$NON-NLS-1$
    contextMenu.setRemoveAllWhenShown ( true );
    contextMenu.addMenuListener ( this );
    Menu menu = contextMenu.createContextMenu ( viewer.getControl () );
    viewer.getControl ().setMenu ( menu );
    getSite ().registerContextMenu ( contextMenu, new UnwrappingSelectionProvider ( viewer ) );

    int dndOperations = DND.DROP_COPY | DND.DROP_MOVE | DND.DROP_LINK;
    Transfer[] transfers = new Transfer[] { LocalTransfer.getInstance (), LocalSelectionTransfer.getTransfer (), FileTransfer.getInstance () };
    viewer.addDragSupport ( dndOperations, transfers, new ViewerDragAdapter ( viewer ) );
    viewer.addDropSupport ( dndOperations, transfers, new EditingDomainViewerDropAdapter ( editingDomain, viewer ) );
}
 

import org.eclipse.swt.dnd.DND; //导入依赖的package包/类
/**
 * This creates a context menu for the viewer and adds a listener as well
 * registering the menu for extension.
 * <!-- begin-user-doc -->
 * <!-- end-user-doc -->
 * 
 * @generated NOT
 */
protected void createContextMenuFor ( final StructuredViewer viewer )
{
    final MenuManager contextMenu = new MenuManager ( "#PopUp" ); //$NON-NLS-1$
    contextMenu.add ( new Separator ( "additions" ) ); //$NON-NLS-1$
    contextMenu.setRemoveAllWhenShown ( true );
    contextMenu.addMenuListener ( this );
    final Menu menu = contextMenu.createContextMenu ( viewer.getControl () );
    viewer.getControl ().setMenu ( menu );
    getSite ().registerContextMenu ( contextMenu, new UnwrappingSelectionProvider ( viewer ) );

    final int dndOperations = DND.DROP_COPY | DND.DROP_MOVE | DND.DROP_LINK;
    final Transfer[] transfers = new Transfer[] {
            LocalTransfer.getInstance (),
            LocalSelectionTransfer.getTransfer (),
            FileTransfer.getInstance (),
            ItemTransfer.getInstance ()
    };
    viewer.addDragSupport ( dndOperations, transfers, new ViewerDragAdapter ( viewer ) );
    viewer.addDropSupport ( dndOperations, transfers, new DropAdapterExtension ( this.editingDomain, viewer ) );
}
 

import org.eclipse.swt.dnd.DND; //导入依赖的package包/类
/**
 * This creates a context menu for the viewer and adds a listener as well
 * registering the menu for extension. <!-- begin-user-doc --> <!--
 * end-user-doc -->
 */
protected void createContextMenuFor ( final StructuredViewer viewer )
{
    final MenuManager contextMenu = new MenuManager ( "#PopUp" );
    contextMenu.add ( new Separator ( "additions" ) );
    contextMenu.setRemoveAllWhenShown ( true );
    contextMenu.addMenuListener ( this );
    final Menu menu = contextMenu.createContextMenu ( viewer.getControl () );
    viewer.getControl ().setMenu ( menu );
    getSite ().registerContextMenu ( contextMenu, new UnwrappingSelectionProvider ( viewer ) );

    final int dndOperations = DND.DROP_COPY | DND.DROP_MOVE | DND.DROP_LINK;
    final Transfer[] transfers = new Transfer[] { LocalTransfer.getInstance () };
    viewer.addDragSupport ( dndOperations, transfers, new ViewerDragAdapter ( viewer ) );
    viewer.addDropSupport ( dndOperations, transfers, new EditingDomainViewerDropAdapter ( this.editingDomain, viewer ) );
}
 

import org.eclipse.swt.dnd.DND; //导入依赖的package包/类
/**
 * This creates a context menu for the viewer and adds a listener as well registering the menu for extension.
 * <!-- begin-user-doc -->
 * <!-- end-user-doc -->
 * @generated
 */
protected void createContextMenuFor ( StructuredViewer viewer )
{
    MenuManager contextMenu = new MenuManager ( "#PopUp" );
    contextMenu.add ( new Separator ( "additions" ) );
    contextMenu.setRemoveAllWhenShown ( true );
    contextMenu.addMenuListener ( this );
    Menu menu = contextMenu.createContextMenu ( viewer.getControl () );
    viewer.getControl ().setMenu ( menu );
    getSite ().registerContextMenu ( contextMenu, new UnwrappingSelectionProvider ( viewer ) );

    int dndOperations = DND.DROP_COPY | DND.DROP_MOVE | DND.DROP_LINK;
    Transfer[] transfers = new Transfer[] { LocalTransfer.getInstance (), LocalSelectionTransfer.getTransfer (), FileTransfer.getInstance () };
    viewer.addDragSupport ( dndOperations, transfers, new ViewerDragAdapter ( viewer ) );
    viewer.addDropSupport ( dndOperations, transfers, new EditingDomainViewerDropAdapter ( editingDomain, viewer ) );
}
 

import org.eclipse.swt.dnd.DND; //导入依赖的package包/类
/**
 * This creates a context menu for the viewer and adds a listener as well
 * registering the menu for extension.
 * <!-- begin-user-doc -->
 * <!-- end-user-doc -->
 *
 * @generated NOT
 */
protected void createContextMenuFor ( final StructuredViewer viewer )
{
    final MenuManager contextMenu = new MenuManager ( "#PopUp" ); //$NON-NLS-1$
    contextMenu.add ( new Separator ( "additions" ) ); //$NON-NLS-1$
    contextMenu.setRemoveAllWhenShown ( true );
    contextMenu.addMenuListener ( this );
    final Menu menu = contextMenu.createContextMenu ( viewer.getControl () );
    viewer.getControl ().setMenu ( menu );
    getSite ().registerContextMenu ( contextMenu, new UnwrappingSelectionProvider ( viewer ) );

    final int dndOperations = DND.DROP_COPY | DND.DROP_MOVE | DND.DROP_LINK;
    final Transfer[] transfers = new Transfer[] { LocalTransfer.getInstance (), LocalSelectionTransfer.getTransfer (), FileTransfer.getInstance (), ItemTransfer.getInstance () };
    viewer.addDragSupport ( dndOperations, transfers, new ViewerDragAdapter ( viewer ) );
    viewer.addDropSupport ( dndOperations, transfers, new DropAdapterExtension ( this.editingDomain, viewer ) );
}
 

import org.eclipse.swt.dnd.DND; //导入依赖的package包/类
private void createXhtmlTree() {
	sourcePicker.createXhtmlTree(treesSashForm);
	
	// DND support
	int ops = DND.DROP_COPY | DND.DROP_MOVE;
	Transfer[] transfers = new Transfer[] {StepSourceTransfer.getInstance()};
	
	DragSource source = new DragSource(sourcePicker.getTwsDomTree().getTree(), ops);
	source.setTransfer(transfers);
	source.addDragListener(new DragSourceAdapter() {			
		@Override
		public void dragStart(DragSourceEvent event) {
			event.doit = true;
			StepSourceTransfer.getInstance().setStepSource(sourcePicker.getDragData());
		}
	});
	
}
 

import org.eclipse.swt.dnd.DND; //导入依赖的package包/类
@Override
public void javaToNative (Object object, TransferData transferData) {
    if (!checkCustom(object) || !isSupportedType(transferData)) {
        DND.error(DND.ERROR_INVALID_DATA);
    }
    byte [] bytes = null;
    if (object instanceof ByteBuffer) {
        bytes = ((ByteBuffer)object).array();
    } else {
        if (object instanceof byte []) {
          bytes = (byte []) object;
        }
    }
    if (bytes == null) {
      DND.error(DND.ERROR_INVALID_DATA);
    }
    super.javaToNative(bytes, transferData);
}
 

import org.eclipse.swt.dnd.DND; //导入依赖的package包/类
Set<TransferMode> getTransferModes(int bits) {
    Set<TransferMode> set = new HashSet<>();
    if ((bits & DND.DROP_COPY) != 0) {
      set.add(TransferMode.COPY);
    }
    if ((bits & DND.DROP_MOVE) != 0) {
      set.add(TransferMode.MOVE);
    }
    if ((bits & DND.DROP_TARGET_MOVE) != 0) {
      set.add(TransferMode.MOVE);
    }
    if ((bits & DND.DROP_LINK) != 0) {
      set.add(TransferMode.LINK);
    }
    return set;
}
 

import org.eclipse.swt.dnd.DND; //导入依赖的package包/类
public void applyDragFromTableViewer(Control sourceControl, int index) {
	Transfer[] types = new Transfer[] { TextTransfer.getInstance() };
	final String portLabel = "in" + index + ".";
	int operations = DND.DROP_MOVE | DND.DROP_COPY | DND.DROP_LINK;
	final Table table = (Table) sourceControl;
	DragSource source = new DragSource(table, operations);
	source.setTransfer(types);
	final String[] columnData = new String[1];
	source.addDragListener(new DragSourceAdapter() {
		public void dragSetData(DragSourceEvent event) {
			// Set the data to be the first selected item's text
			event.data = addDelimeter(portLabel, table.getSelection());
		}
	});

}
 

import org.eclipse.swt.dnd.DND; //导入依赖的package包/类
@Override
public int dragOver(AvroNode draggedNode, AvroNode targetNode, TargetPosition position) {
	
	int detail = DND.DROP_NONE;
	
	AvroSchemaController schemaController = context.getService(AvroSchemaController.class);				

	if (schemaController.canDnDElement(DragAndDropPolicy.Action.MOVE, draggedNode, targetNode, position)) {
		detail = DND.DROP_MOVE;
	} else if (schemaController.canDnDElement(DragAndDropPolicy.Action.COPY, draggedNode, targetNode, position))  {
		detail = DND.DROP_COPY;
	} else if (schemaController.canDnDElement(DragAndDropPolicy.Action.REFERENCE, draggedNode, targetNode, position))  {
		detail = DND.DROP_MOVE;
	} 
	
	return detail;
}
 

import org.eclipse.swt.dnd.DND; //导入依赖的package包/类
protected void configureDragAndDrop(DragAndDropConfiguration dragAndDropConfiguration, TreeViewer treeViewer) {

      // drop
      Transfer[] transferTypes = new Transfer[] { LocalSelectionTransfer.getTransfer() };
      int operations = dragAndDropConfiguration.getSupportedDropOperations(this);
      
      DropTarget target = new DropTarget(treeViewer.getControl(), operations);
      target.setTransfer(transferTypes);

      // Drop listeners pour le drop des elements sur l'arbre
      SchemaViewerDropPolicy dropPolicy = dragAndDropConfiguration.getDropPolicy(this);
      DnDTargetListener targetListener = new DnDTargetListener(this, nodeConverter, dropPolicy);
      target.addDropListener(targetListener);

      // Drag listener pour le drag des elements de l'arbre
      DragSourceListener sourceListener = new DnDSourceListener(this);
      operations = DND.DROP_MOVE | DND.DROP_COPY | DND.DROP_DEFAULT;
      transferTypes = new Transfer[] { LocalSelectionTransfer.getTransfer() };
      treeViewer.addDragSupport(operations, transferTypes, sourceListener);
      
  }
 

import org.eclipse.swt.dnd.DND; //导入依赖的package包/类
/**
 * This creates a context menu for the viewer and adds a listener as well registering the menu for extension.
 * <!-- begin-user-doc -->
 * <!-- end-user-doc -->
 * 
 * @generated
 */
protected void createContextMenuFor(StructuredViewer viewer) {
    MenuManager contextMenu = new MenuManager("#PopUp");
    contextMenu.add(new Separator("additions"));
    contextMenu.setRemoveAllWhenShown(true);
    contextMenu.addMenuListener(this);
    Menu menu = contextMenu.createContextMenu(viewer.getControl());
    viewer.getControl().setMenu(menu);
    getSite().registerContextMenu(contextMenu, new UnwrappingSelectionProvider(viewer));

    int dndOperations = DND.DROP_COPY | DND.DROP_MOVE | DND.DROP_LINK;
    Transfer[] transfers = new Transfer[] {LocalTransfer.getInstance(), LocalSelectionTransfer.getTransfer(),
        FileTransfer.getInstance()};
    viewer.addDragSupport(dndOperations, transfers, new ViewerDragAdapter(viewer));
    viewer.addDropSupport(dndOperations, transfers, new EditingDomainViewerDropAdapter(editingDomain, viewer));
}
 

import org.eclipse.swt.dnd.DND; //导入依赖的package包/类
/**
 * Adds a new note to the notepad.
 */
public void addNewNote() {
	String noteText = "";
	if (preferences.getBoolean(PreferenceConstants.PREF_PASTE_CLIPBOARD_IN_NEW_NOTES,
			PreferenceConstants.PREF_PASTE_CLIPBOARD_IN_NEW_NOTES_DEFAULT)) {
		noteText = (String) clipboard.getContents(TextTransfer.getInstance(), DND.CLIPBOARD);
	}
	String noteTitle = preferences.get(PreferenceConstants.PREF_NAME_PREFIX,
			PreferenceConstants.PREF_NAME_PREFIX_DEFAULT) + " " + (tabFolder.getItemCount() + 1);
	// Add a new note tab with a number appended to its name (Note 1, Note 2, Note 3, etc.).
	addNewNoteTab(noteTitle, noteText, null, true, null);
	CTabItem previousSelectedTab = tabFolder.getSelection();
	// Remove lock for currently selected tab.
	if (previousSelectedTab != null && previousSelectedTab.getText().startsWith(LOCK_PREFIX)) {
		previousSelectedTab.setText(previousSelectedTab.getText().substring(LOCK_PREFIX.length()));
	}
	tabFolder.setSelection(tabFolder.getItemCount() - 1);
}