Examples with TransferData org.eclipse.swt.dnd.TransferData used on opensource projects

Example 6 with TransferData

use of org.eclipse.swt.dnd.TransferData in project bndtools by bndtools.

the class JarListWizardPage method createControl.

@Override
public void createControl(final Composite parent) {
    setTitle("Select JARs");
    final Composite composite = new Composite(parent, SWT.NONE);
    Label lblHint = new Label(composite, SWT.WRAP);
    lblHint.setText("Selected files (hint: drag files from an external application into this list):");
    final Table table = new Table(composite, SWT.FULL_SELECTION | SWT.MULTI | SWT.BORDER);
    viewer = new TableViewer(table);
    viewer.setContentProvider(new ArrayContentProvider());
    viewer.setLabelProvider(new ClassPathLabelProvider());
    btnAdd = new Button(composite, SWT.PUSH);
    btnAdd.setText("Add");
    btnAddExternal = new Button(composite, SWT.PUSH);
    btnAddExternal.setText("Add External");
    btnRemove = new Button(composite, SWT.PUSH);
    btnRemove.setText("Remove");
    viewer.setInput(paths);
    update();
    // Listeners
    ViewerDropAdapter dropAdapter = new ViewerDropAdapter(viewer) {

        @Override
        public void dragEnter(DropTargetEvent event) {
            super.dragEnter(event);
            event.detail = DND.DROP_COPY;
        }

        @Override
        public boolean validateDrop(Object target, int operation, TransferData transferType) {
            return true;
        }

        @Override
        public boolean performDrop(Object data) {
            if (data instanceof String[]) {
                String[] newPaths = (String[]) data;
                List<IPath> added = new ArrayList<IPath>(newPaths.length);
                for (String path : newPaths) {
                    added.add(new Path(path));
                }
                if (!added.isEmpty()) {
                    addToPaths(added);
                    viewer.add(added.toArray());
                    update();
                }
            }
            return true;
        }
    };
    dropAdapter.setFeedbackEnabled(false);
    dropAdapter.setSelectionFeedbackEnabled(false);
    viewer.addDropSupport(DND.DROP_COPY | DND.DROP_MOVE, new Transfer[] { FileTransfer.getInstance() }, dropAdapter);
    viewer.addSelectionChangedListener(new ISelectionChangedListener() {

        @Override
        public void selectionChanged(final SelectionChangedEvent event) {
            update();
        }
    });
    btnAdd.addSelectionListener(new SelectionAdapter() {

        @Override
        public void widgetSelected(SelectionEvent e) {
            // IResource newFile = ResourcesPlugin.getWorkspace().getRoot();
            // if(newFile != null) {
            ElementTreeSelectionDialog dialog = new ElementTreeSelectionDialog(getShell(), new WorkbenchLabelProvider(), new WorkbenchContentProvider());
            dialog.setValidator(new ISelectionStatusValidator() {

                @Override
                public IStatus validate(Object[] selection) {
                    if (selection.length > 0 && selection[0] instanceof IFile) {
                        //$NON-NLS-1$
                        return new Status(IStatus.OK, Plugin.PLUGIN_ID, IStatus.OK, "", null);
                    }
                    //$NON-NLS-1$
                    return new Status(IStatus.ERROR, Plugin.PLUGIN_ID, IStatus.ERROR, "", null);
                }
            });
            dialog.setAllowMultiple(true);
            dialog.setTitle("JAR File Selection");
            dialog.setMessage("Select one or more JAR files.");
            //$NON-NLS-1$
            dialog.addFilter(new FileExtensionFilter("jar"));
            dialog.setInput(ResourcesPlugin.getWorkspace());
            if (dialog.open() == Window.OK) {
                Object[] files = dialog.getResult();
                List<IPath> added = new ArrayList<IPath>(files.length);
                for (Object file : files) {
                    added.add(((IResource) file).getFullPath().makeRelative());
                }
                if (!added.isEmpty()) {
                    addToPaths(added);
                    viewer.add(added.toArray());
                }
            }
            // }
            update();
        }
    });
    btnAddExternal.addSelectionListener(new SelectionAdapter() {

        @Override
        public void widgetSelected(SelectionEvent e) {
            FileDialog dialog = new FileDialog(getShell(), SWT.OPEN | SWT.MULTI);
            dialog.setFilterExtensions(new String[] { //$NON-NLS-1$
            "*.jar" });
            String res = dialog.open();
            if (res != null) {
                IPath filterPath = new Path(dialog.getFilterPath());
                String[] fileNames = dialog.getFileNames();
                List<IPath> added = new ArrayList<IPath>(fileNames.length);
                for (String fileName : fileNames) {
                    added.add(filterPath.append(fileName));
                }
                if (!added.isEmpty()) {
                    addToPaths(added);
                    viewer.add(added.toArray());
                }
            }
            update();
        }
    });
    btnRemove.addSelectionListener(new SelectionAdapter() {

        @SuppressWarnings("unchecked")
        @Override
        public void widgetSelected(SelectionEvent e) {
            removeFromPaths(((IStructuredSelection) viewer.getSelection()).toList());
            viewer.remove(((IStructuredSelection) viewer.getSelection()).toArray());
            update();
        }
    });
    // Layout
    composite.setLayout(new GridLayout(2, false));
    table.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 3));
    btnAdd.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, false));
    btnAddExternal.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, false));
    btnRemove.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, false));
    lblHint.setLayoutData(new GridData(SWT.LEFT, SWT.TOP, false, false, 2, 1));
    setControl(composite);
}