Example usage for org.eclipse.jface.databinding.viewers ObservableListContentProvider ObservableListContentProvider

Introduction

In this page you can find the example usage for org.eclipse.jface.databinding.viewers ObservableListContentProvider ObservableListContentProvider.

Prototype

public ObservableListContentProvider(IViewerUpdater<E> viewerUpdater) 

Source Link

Document

Constructs an ObservableListContentProvider with the given viewer updater.

Usage

From source file:au.gov.ga.earthsci.bookmark.ui.BookmarksPart.java

License:Apache License

private void initCombo(Composite parent) {
    bookmarkListsComboViewer = new ComboViewer(parent, SWT.READ_ONLY | SWT.DROP_DOWN);

    GridData gd = new GridData(GridData.FILL_HORIZONTAL);
    gd.grabExcessHorizontalSpace = true;
    gd.grabExcessVerticalSpace = false;/*from   www. j a  va2  s.  com*/
    bookmarkListsComboViewer.getCombo().setLayoutData(gd);

    bookmarkListsComboViewer.setLabelProvider(new LabelProvider() {
        @Override
        public String getText(Object element) {
            if (!(element instanceof IBookmarkList)) {
                return super.getText(element);
            }
            return ((IBookmarkList) element).getName();
        }
    });

    // Trigger a label refresh if a list name changes etc.
    ObservableListContentProvider<IBookmarkList> contentProvider = new ObservableListContentProvider<IBookmarkList>(
            IBookmarkList.class);
    IObservableSet<IBookmarkList> knownElements = contentProvider.getKnownElements();
    IObservableMap<IBookmarkList, String> nameMap = BeanProperties
            .value(IBookmarkList.class, "name", String.class).observeDetail(knownElements); //$NON-NLS-1$
    nameMap.addMapChangeListener(new IMapChangeListener<IBookmarkList, String>() {
        @Override
        public void handleMapChange(MapChangeEvent<IBookmarkList, String> event) {
            for (IBookmarkList key : event.diff.getChangedKeys()) {
                bookmarkListsComboViewer.refresh(key, true);
            }
        }
    });

    IBeanListProperty<IBookmarks, IBookmarkList> listsProperty = BeanProperties.list(IBookmarks.class, "lists", //$NON-NLS-1$
            IBookmarkList.class);
    IObservableList<IBookmarkList> observableList = listsProperty.observe(bookmarks);
    bookmarkListsComboViewer.setContentProvider(contentProvider);
    bookmarkListsComboViewer.setInput(observableList);
    bookmarkListsComboViewer.setSelection(new StructuredSelection(bookmarks.getDefaultList()));

    bookmarkListsComboViewer.addSelectionChangedListener(new ISelectionChangedListener() {
        @Override
        public void selectionChanged(SelectionChangedEvent event) {
            controller.setCurrentList(getSelectedBookmarkList());
        }
    });
}

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From source file:au.gov.ga.earthsci.bookmark.ui.BookmarksPart.java

License:Apache License

private void initList(Composite parent) {
    Composite tableHolder = new Composite(parent, SWT.NONE);
    GridData gd = new GridData(GridData.FILL_BOTH);
    gd.grabExcessHorizontalSpace = true;
    gd.grabExcessVerticalSpace = true;/*  w w  w .j a  v  a2 s. c  om*/
    gd.horizontalAlignment = GridData.FILL;
    tableHolder.setLayoutData(gd);

    TableColumnLayout layout = new TableColumnLayout();
    tableHolder.setLayout(layout);

    bookmarkListTableViewer = new TableViewer(tableHolder,
            SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER | SWT.MULTI | SWT.FULL_SELECTION);
    bookmarkListTableViewer.getTable().setHeaderVisible(false);
    bookmarkListTableViewer.getTable().setLinesVisible(false);

    bookmarkListTableViewer.getTable().setLayoutData(gd);

    ObservableListContentProvider<IBookmark> contentProvider = new ObservableListContentProvider<IBookmark>(
            IBookmark.class);
    bookmarkListTableViewer.setContentProvider(contentProvider);

    IObservableSet<IBookmark> knownElements = contentProvider.getKnownElements();
    IObservableMap<IBookmark, String> nameMap = BeanProperties.value(IBookmark.class, "name", String.class) //$NON-NLS-1$
            .observeDetail(knownElements);

    TableViewerColumn column = new TableViewerColumn(bookmarkListTableViewer, SWT.LEFT);
    column.setEditingSupport(new BookmarkNameEditingSupport(bookmarkListTableViewer));
    column.setLabelProvider(new ObservableMapCellLabelProvider<IBookmark, String>(nameMap) {
        @Override
        public void update(ViewerCell cell) {
            super.update(cell);
            cell.setText(" " + ((IBookmark) cell.getElement()).getName()); //$NON-NLS-1$
            cell.setImage(ImageRegistry.getInstance().get(ImageRegistry.ICON_BOOKMARKS));
        }
    });
    ColumnLayoutData cld = new ColumnWeightData(12);
    layout.setColumnData(column.getColumn(), cld);

    // Allow edit (rename) only via programmatic access (rename command)
    ColumnViewerEditorActivationStrategy activationStrategy = new ColumnViewerEditorActivationStrategy(
            bookmarkListTableViewer) {
        @Override
        protected boolean isEditorActivationEvent(ColumnViewerEditorActivationEvent event) {
            return event.eventType == ColumnViewerEditorActivationEvent.PROGRAMMATIC;
        }
    };
    TableViewerEditor.create(bookmarkListTableViewer, activationStrategy,
            ColumnViewerEditor.KEYBOARD_ACTIVATION);

    // Populate the current selection with the actual bookmark items
    bookmarkListTableViewer.addSelectionChangedListener(new ISelectionChangedListener() {
        @Override
        public void selectionChanged(SelectionChangedEvent event) {
            IStructuredSelection selection = (IStructuredSelection) bookmarkListTableViewer.getSelection();
            List<?> list = selection.toList();
            selectionService.setSelection(list.toArray(new IBookmark[list.size()]));
        }
    });

    // Apply the bookmark on double click
    bookmarkListTableViewer.addDoubleClickListener(new IDoubleClickListener() {
        @Override
        public void doubleClick(DoubleClickEvent event) {
            controller.apply((IBookmark) ((IStructuredSelection) event.getSelection()).getFirstElement());
        }
    });

    // Deselect when clicking outside a valid row
    bookmarkListTableViewer.getTable().addMouseListener(new MouseAdapter() {
        @Override
        public void mouseUp(MouseEvent e) {
            if (bookmarkListTableViewer.getTable().getItem(new Point(e.x, e.y)) == null) {
                bookmarkListTableViewer.setSelection(null);
            }
        }
    });

}

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