Java Code Examples for org.eclipse.jface.viewers.TreeViewer#addDragSupport()

The following examples show how to use org.eclipse.jface.viewers.TreeViewer#addDragSupport() . 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: AbapGitStagingView.java    From ADT_Frontend with MIT License 6 votes vote down vote up 
private void addDragAndDropSupport(TreeViewer viewer, final boolean unstaged) {
	viewer.addDragSupport(DND.DROP_MOVE | DND.DROP_COPY | DND.DROP_LINK,
			new Transfer[] { LocalSelectionTransfer.getTransfer(), LocalSelectionTransfer.getTransfer() },
			new StagingDragListener(viewer, ArrayContentProvider.getInstance(), unstaged));

	viewer.addDropSupport(DND.DROP_MOVE | DND.DROP_COPY | DND.DROP_LINK, new Transfer[] { LocalSelectionTransfer.getTransfer() },
			new DropTargetAdapter() {
				public void drop(DropTargetEvent event) {
					event.detail = DND.DROP_COPY;
					if (event.data instanceof IStructuredSelection) {
						IStructuredSelection selection = (IStructuredSelection) event.data;
						if (selection instanceof StagingDragSelection
								&& ((StagingDragSelection) selection).isFromUnstaged() == unstaged) {
							return;
						}
						if (((StagingDragSelection) selection).isFromUnstaged()) {
							stageSelectedObjects(selection);
						} else {
							unstageSelectedObjects(selection);
						}
					}
				}
			});
}
Example 2
Source File: TexOutlinePage.java    From texlipse with Eclipse Public License 1.0 4 votes vote down vote up 
/**
 * Creates the control ie. creates all the stuff that matters and
 * is visible in the outline. 
 * 
 * Actions must be created before menus and toolbars.
 * 
 * @param parent
 */
public void createControl(Composite parent) {
    super.createControl(parent);
    
    // create the context actions
    createActions();
    
    // initialize the tree viewer
    TreeViewer viewer = getTreeViewer();		
    filter = new TexOutlineFilter();
    viewer.setContentProvider(new TexContentProvider(filter));
    viewer.setLabelProvider(new TexLabelProvider());
    viewer.setComparer(new TexOutlineNodeComparer());
    
    // get and apply the preferences
    this.getOutlinePreferences();
    viewer.addFilter(filter);
    
    // set the selection listener
    viewer.addSelectionChangedListener(this);
    
    // enable drag'n'drop support
    TexOutlineDNDAdapter dndAdapter = new TexOutlineDNDAdapter(viewer, this);
    int ops = DND.DROP_COPY | DND.DROP_MOVE;
    Transfer[] transfers = new Transfer[] {TextTransfer.getInstance()};
    viewer.addDragSupport(ops, transfers, dndAdapter);
    viewer.addDropSupport(ops, transfers, dndAdapter);
    
    // enable copy-paste
    initCopyPaste(viewer);
    
    // create the menu bar and the context menu
    createToolbar();
    resetToolbarButtons();
    createContextMenu();
    
    
    // finally set the input
    if (this.input != null) {
        viewer.setInput(this.input.getRootNodes());
        
        // set update button status and also the context actions
        outlineActions.get(ACTION_UPDATE).setEnabled(false);
        outlineActions.get(ACTION_COPY).setEnabled(true);
        outlineActions.get(ACTION_CUT).setEnabled(true);
        outlineActions.get(ACTION_PASTE).setEnabled(true);
        outlineActions.get(ACTION_DELETE).setEnabled(true);

    }
}