Example usage for org.eclipse.jface.viewers ILazyTreeContentProvider ILazyTreeContentProvider

Introduction

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

Prototype

ILazyTreeContentProvider

Source Link

Usage

From source file:com.diffplug.common.swt.jface.ViewerMisc.java

License:Apache License

/** Sets an {@link ILazyTreeContentProvider} implemented by the given {@link TreeDef.Parented}. */
@SuppressWarnings("unchecked")
public static <T> void setLazyTreeContentProvider(TreeViewer viewer, TreeDef.Parented<T> treeDef) {
    Preconditions.checkArgument(SwtMisc.flagIsSet(SWT.VIRTUAL, viewer.getControl()),
            "The tree must have SWT.VIRTUAL set.");
    viewer.setUseHashlookup(true);/*from   ww w .j  av a 2 s  . c  o m*/
    viewer.setContentProvider(new ILazyTreeContentProvider() {
        @Override
        public void dispose() {
        }

        @Override
        public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
        }

        @Override
        public void updateElement(Object parent, int index) {
            T child = treeDef.childrenOf((T) parent).get(index);
            viewer.replace(parent, index, child);
            updateChildCount(child, 0);
        }

        @Override
        public void updateChildCount(Object element, int currentChildCount) {
            viewer.setChildCount(element, treeDef.childrenOf((T) element).size());
        }

        @Override
        public Object getParent(Object element) {
            return treeDef.parentOf((T) element);
        }
    });
}

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From source file:org.eclipse.ptp.internal.rm.lml.ui.views.TableView.java

License:Open Source License

@Override
public void createPartControl(Composite parent) {
    gid = getViewSite().getId();/* w  w w .j a v a2 s . co m*/
    composite = new Composite(parent, SWT.None);
    treeColumnLayout = new TreeColumnLayout();
    composite.setLayout(treeColumnLayout);
    composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));

    viewer = new TreeViewer(composite, SWT.MULTI | SWT.FULL_SELECTION | SWT.V_SCROLL | SWT.VIRTUAL);
    viewer.getTree().setLayout(new TableLayout());
    viewer.getTree().setLayoutData(new GridData(GridData.FILL_BOTH));
    viewer.setContentProvider(new ILazyTreeContentProvider() {
        private Row[] rows;

        @Override
        public void dispose() {
            // Nothing
        }

        @Override
        public Object getParent(Object element) {
            if (element instanceof Cell) {
                return ((Cell) element).row;
            }
            return rows;
        }

        @Override
        public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
            this.rows = (Row[]) newInput;
        }

        @Override
        public void updateChildCount(Object element, int currentChildCount) {
            // Nothing
        }

        @Override
        public void updateElement(Object parent, int index) {
            Object element;
            if (parent instanceof Row) {
                element = ((Row) parent).cells[index];
            } else {
                element = rows[index];
            }
            viewer.replace(parent, index, element);
            updateChildCount(element, -1);
        }
    });
    viewer.setUseHashlookup(true);
    /*
     * Must expand first level of table, otherwise it may not be redrawn.
     */
    viewer.setAutoExpandLevel(2);

    tree = viewer.getTree();

    headerMenu = new Menu(composite);
    // Part for the controlling Monitor - context menu
    final MenuManager contextMenu = new MenuManager();
    contextMenu.setRemoveAllWhenShown(true);
    final Menu menu = contextMenu.createContextMenu(tree);
    getSite().registerContextMenu(contextMenu, viewer);
    getSite().setSelectionProvider(viewer);

    tree.setLinesVisible(true);
    tree.setHeaderVisible(true);
    tree.addListener(SWT.MenuDetect, new Listener() {
        @Override
        public void handleEvent(Event event) {
            final Point pt = tree.getDisplay().map(null, tree, new Point(event.x, event.y));
            final Rectangle clientArea = tree.getClientArea();
            final boolean header = clientArea.y <= pt.y && pt.y < (clientArea.y + tree.getHeaderHeight());
            tree.setMenu(header ? headerMenu : menu);
        }
    });

    /*
     * Get the selected LguiItem (if there is one) so that the table will be populated when the it is first created
     */
    fLguiItem = lmlManager.getSelectedLguiItem();

    // ViewMenuManager
    viewMenuManager = getViewSite().getActionBars().getMenuManager();
    final IAction filterOwnJobsAction = new Action(Messages.TableView_Show_only_my_jobs, IAction.AS_CHECK_BOX) {

        @Override
        public void run() {

            final List<String> columnsTitle = new LinkedList<String>();
            columnsTitle.add(ILMLCoreConstants.OWNER);
            fLguiItem.getTableHandler().deleteOldPattern(gid, columnsTitle);

            if (isChecked()) {
                final List<IPattern> filterValuesNew = new LinkedList<IPattern>();
                filterValuesNew.add((new Pattern(ILMLCoreConstants.OWNER, ILMLCoreConstants.TABLECOLUMN_ALPHA))
                        .setRelation(ILMLCoreConstants.EQ, fLguiItem.getUsername()));

                fLguiItem.getTableHandler().generateNewPattern(gid, filterValuesNew);
                setViewerInput(fLguiItem.getTableHandler().getPattern(gid));
            } else {
                setViewerInput();
            }
            updateAfterLastFilter = false;
        }

    };
    final IAction filterAction = new Action(Messages.TableView_Filters) {

        @Override
        public void run() {
            final FilterDialog dialog = new FilterDialog(new Shell(viewSite.getShell()), gid);
            dialog.open();
        }
    };

    filterOwnJobsActionItem = new ActionContributionItem(filterOwnJobsAction);
    filterActionItem = new ActionContributionItem(filterAction);
    viewMenuManager.add(filterOwnJobsActionItem);
    viewMenuManager.add(new Separator());
    viewMenuManager.add(filterActionItem);
    filterOwnJobsActionItem.getAction().setEnabled(false);
    filterActionItem.getAction().setEnabled(false);

    viewCreated = createTable();

    tree.addDisposeListener(new DisposeListener() {
        @Override
        public void widgetDisposed(DisposeEvent e) {
            if (fLguiItem != null) {
                saveColumnLayout();
            }
        }
    });
}

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From source file:org.eclipse.ptp.rm.lml.ui.views.TableView.java

License:Open Source License

@Override
public void createPartControl(Composite parent) {
    gid = getViewSite().getId();// w  w  w.  j  a v  a2s .c o m
    composite = new Composite(parent, SWT.None);
    treeColumnLayout = new TreeColumnLayout();
    composite.setLayout(treeColumnLayout);
    composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));

    viewer = new TreeViewer(composite, SWT.MULTI | SWT.FULL_SELECTION | SWT.V_SCROLL | SWT.VIRTUAL);
    viewer.getTree().setLayout(new TableLayout());
    viewer.getTree().setLayoutData(new GridData(GridData.FILL_BOTH));
    viewer.setContentProvider(new ILazyTreeContentProvider() {
        private Row[] rows;

        public void dispose() {
            // Nothing
        }

        public Object getParent(Object element) {
            if (element instanceof Cell) {
                return ((Cell) element).row;
            }
            return rows;
        }

        public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
            this.rows = (Row[]) newInput;
        }

        public void updateChildCount(Object element, int currentChildCount) {
            // Nothing
        }

        public void updateElement(Object parent, int index) {
            Object element;
            if (parent instanceof Row) {
                element = ((Row) parent).cells[index];
            } else {
                element = rows[index];
            }
            viewer.replace(parent, index, element);
            updateChildCount(element, -1);
        }
    });
    viewer.setUseHashlookup(true);
    /*
     * Must expand first level of table, otherwise it may not be redrawn.
     */
    viewer.setAutoExpandLevel(2);

    tree = viewer.getTree();

    headerMenu = new Menu(composite);
    // Part for the controlling Monitor - context menu
    final MenuManager contextMenu = new MenuManager();
    contextMenu.setRemoveAllWhenShown(true);
    final Menu menu = contextMenu.createContextMenu(composite);
    getSite().registerContextMenu(contextMenu, viewer);

    tree.setLinesVisible(true);
    tree.setHeaderVisible(true);
    tree.addListener(SWT.MenuDetect, new Listener() {
        public void handleEvent(Event event) {
            final Point pt = tree.getDisplay().map(null, tree, new Point(event.x, event.y));
            final Rectangle clientArea = tree.getClientArea();
            final boolean header = clientArea.y <= pt.y && pt.y < (clientArea.y + tree.getHeaderHeight());
            tree.setMenu(header ? headerMenu : menu);
        }
    });

    /*
     * Get the selected LguiItem (if there is one) so that the table will be populated when the it is first created
     */
    fLguiItem = lmlManager.getSelectedLguiItem();

    createTable();
    tree.addDisposeListener(new DisposeListener() {
        public void widgetDisposed(DisposeEvent e) {
            if (fLguiItem != null) {
                saveColumnLayout();
            }
        }
    });
}

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From source file:org.eclipse.recommenders.internal.models.rcp.ModelRepositoriesView.java

License:Open Source License

@Override
public void createPartControl(Composite parent) {
    bus.register(this);
    Composite container = new Composite(parent, SWT.NONE);
    container.setLayout(new GridLayout());

    txtSearch = new Text(container, SWT.BORDER | SWT.ICON_SEARCH | SWT.SEARCH | SWT.CANCEL);
    txtSearch.setMessage(Messages.SEARCH_PLACEHOLDER_FILTER_TEXT);
    txtSearch.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
    txtSearch.addKeyListener(new KeyAdapter() {
        @Override/*  ww w. ja  v  a2 s . c o m*/
        public void keyPressed(KeyEvent e) {
            if (e.keyCode == SWT.ARROW_DOWN && tree.getItemCount() != 0) {
                tree.setFocus();
                tree.setSelection(tree.getTopItem());
            }
        }
    });

    Composite composite = new Composite(container, SWT.NONE);

    TreeColumnLayout treeLayout = new TreeColumnLayout();
    composite.setLayout(treeLayout);
    composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));

    treeViewer = new TreeViewer(composite, SWT.BORDER | SWT.FULL_SELECTION | SWT.VIRTUAL);
    ColumnViewerToolTipSupport.enableFor(treeViewer);
    tree = treeViewer.getTree();
    tree.setHeaderVisible(true);
    tree.setLinesVisible(true);

    TreeViewerColumn repositoryViewerColumn = new TreeViewerColumn(treeViewer, SWT.NONE);
    TreeColumn repositoryColumn = repositoryViewerColumn.getColumn();
    treeLayout.setColumnData(repositoryColumn, new ColumnWeightData(1, ColumnWeightData.MINIMUM_WIDTH, true));
    repositoryColumn.setText(Messages.COLUMN_LABEL_REPOSITORY);
    repositoryViewerColumn.setLabelProvider(new StyledCellLabelProvider() {

        @Override
        public void update(ViewerCell cell) {
            Object element = cell.getElement();
            StyledString text = new StyledString();
            if (element instanceof String) {
                String url = (String) element;
                text.append(url);
                text.append(" "); //$NON-NLS-1$
                text.append(format(Messages.TABLE_CELL_SUFFIX_KNOWN_COORDINATES, fetchNumberOfModels(url)),
                        StyledString.COUNTER_STYLER);
                cell.setImage(images.getImage(OBJ_REPOSITORY));
            }
            if (element instanceof KnownCoordinate) {
                KnownCoordinate v = (KnownCoordinate) element;
                text.append(v.pc.toString());
            }
            cell.setText(text.toString());
            cell.setStyleRanges(text.getStyleRanges());
            super.update(cell);
        }
    });

    int minWidth = calculateMinColumnWidthForClassifier();
    for (String classifier : modelClassifiers) {
        newColumn(treeLayout, classifier, minWidth);
    }
    treeViewer.setUseHashlookup(true);
    treeViewer.setContentProvider(new ILazyTreeContentProvider() {

        @Override
        public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
            filteredCoordinatesGroupedByRepo = ArrayListMultimap.create(coordinatesGroupedByRepo);
        }

        @Override
        public void dispose() {
        }

        @Override
        public void updateElement(Object parent, int index) {
            if (parent instanceof IViewSite) {
                String element = prefs.remotes[index];
                treeViewer.replace(parent, index, element);
                treeViewer.setChildCount(element, getChildren(element).length);
            } else if (parent instanceof String) {
                treeViewer.replace(parent, index, getChildren(parent)[index]);
            }
        }

        private Object[] getChildren(Object element) {
            if (element instanceof String) {
                return filteredCoordinatesGroupedByRepo.get((String) element).toArray();
            }
            return new Object[0];
        }

        @Override
        public void updateChildCount(Object element, int currentChildCount) {
            int count = 0;

            if (element instanceof IViewSite) {
                count = prefs.remotes.length;
            }

            if (contains(prefs.remotes, element)) {
                count = getChildren(element).length;
            }

            if (count != currentChildCount) {
                treeViewer.setChildCount(element, count);
            }
        }

        @Override
        public Object getParent(Object element) {
            if (element instanceof KnownCoordinate) {
                KnownCoordinate v = (KnownCoordinate) element;
                return v.url;
            }
            return null;
        }
    });

    treeViewer.setInput(getViewSite());
    refreshData();

    addRemoteRepositoryAction = new Action() {
        @Override
        public void run() {
            addRemoteRepository();
        }
    };

    IToolBarManager toolBarManager = getViewSite().getActionBars().getToolBarManager();
    addAction(Messages.TOOLBAR_TOOLTIP_ADD_REPOSITORY, ELCL_ADD_REPOSITORY, toolBarManager,
            addRemoteRepositoryAction);

    addAction(Messages.TOOLBAR_TOOLTIP_REFRESH, ELCL_REFRESH, toolBarManager, new Action() {
        @Override
        public void run() {
            refreshData();
        }
    });

    addAction(Messages.TOOLBAR_TOOLTIP_EXPAND_ALL, ELCL_EXPAND_ALL, toolBarManager, new Action() {
        @Override
        public void run() {
            for (int i = 0; i < treeViewer.getTree().getItemCount(); i++) {
                treeViewer.getTree().getItem(i).setExpanded(true);
            }
        }
    });

    addAction(Messages.TOOLBAR_TOOLTIP_COLLAPSE_ALL, ELCL_COLLAPSE_ALL, toolBarManager, new Action() {
        @Override
        public void run() {
            for (int i = 0; i < treeViewer.getTree().getItemCount(); i++) {
                treeViewer.getTree().getItem(i).setExpanded(false);
            }
        }
    });

    IMenuManager menuManager = getViewSite().getActionBars().getMenuManager();
    addAction(Messages.MENUITEM_DELETE_MODELS, ELCL_DELETE, menuManager, new Action() {
        @Override
        public void run() {
            deleteCacheAndRefresh();
        }
    });

    addContextMenu();
    bindingContext = initDataBindings();
}

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From source file:org.eclipse.recommenders.internal.snipmatch.rcp.SnippetsView.java

License:Open Source License

@Override
public void createPartControl(final Composite parent) {
    Composite composite = new Composite(parent, SWT.NONE);
    GridLayoutFactory.swtDefaults().applyTo(composite);

    txtSearch = new Text(composite, SWT.BORDER | SWT.ICON_SEARCH | SWT.SEARCH | SWT.CANCEL);
    txtSearch.setMessage(Messages.SEARCH_PLACEHOLDER_SEARCH_TEXT);
    GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER).grab(true, false).span(1, 1).applyTo(txtSearch);
    txtSearch.addModifyListener(new ModifyListener() {

        @Override//from  www  .j a v  a2s  .  co m
        public void modifyText(ModifyEvent e) {
            refreshUI();
        }
    });
    txtSearch.setData(SWT_ID, SEARCH_FIELD);
    txtSearch.addKeyListener(new KeyAdapter() {
        @Override
        public void keyPressed(KeyEvent e) {
            if (e.keyCode == SWT.ARROW_DOWN && tree.getItemCount() != 0) {
                tree.setFocus();
                tree.setSelection(tree.getTopItem());
            }
        }
    });

    Composite treeComposite = new Composite(composite, SWT.NONE);

    TreeColumnLayout treeLayout = new TreeColumnLayout();
    treeComposite.setLayout(treeLayout);
    treeComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));

    treeViewer = new TreeViewer(treeComposite, SWT.BORDER | SWT.FULL_SELECTION | SWT.MULTI | SWT.VIRTUAL);
    ColumnViewerToolTipSupport.enableFor(treeViewer);
    tree = treeViewer.getTree();
    tree.setData(SWT_ID, TREE);
    tree.setHeaderVisible(true);
    tree.setLinesVisible(true);

    TreeViewerColumn snippetViewerColumn = new TreeViewerColumn(treeViewer, SWT.NONE);
    TreeColumn snippetColumn = snippetViewerColumn.getColumn();
    treeLayout.setColumnData(snippetColumn, new ColumnWeightData(1, ColumnWeightData.MINIMUM_WIDTH, true));
    snippetColumn.setText(Messages.TABLE_COLUMN_TITLE_SNIPPETS);
    snippetViewerColumn.setLabelProvider(new StyledCellLabelProvider() {

        @Override
        public void update(ViewerCell cell) {
            Object element = cell.getElement();
            StyledString text = new StyledString();
            if (element instanceof SnippetRepositoryConfiguration) {
                SnippetRepositoryConfiguration config = (SnippetRepositoryConfiguration) element;

                text.append(config.getName());
                text.append(" "); //$NON-NLS-1$

                if (prefs.isRepositoryEnabled(config)) {
                    text.append(format(Messages.TABLE_CELL_SUFFIX_SNIPPETS, fetchNumberOfSnippets(config)),
                            StyledString.COUNTER_STYLER);
                } else {
                    text.append(Messages.TABLE_REPOSITORY_DISABLED, StyledString.COUNTER_STYLER);
                }

                cell.setImage(images.getImage(Images.OBJ_REPOSITORY));
            } else if (element instanceof KnownSnippet) {
                KnownSnippet knownSnippet = (KnownSnippet) element;
                text.append(toStringRepresentation.apply(knownSnippet));
            }
            cell.setText(text.toString());
            cell.setStyleRanges(text.getStyleRanges());
            super.update(cell);
        }
    });

    treeViewer.addOpenListener(new IOpenListener() {

        @Override
        public void open(OpenEvent event) {
            if (selectionConsistsOnlyElementsOf(KnownSnippet.class)) {
                editSnippets();
            }
        }
    });
    treeViewer.setUseHashlookup(true);
    treeViewer.setContentProvider(new ILazyTreeContentProvider() {

        @Override
        public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
        }

        @Override
        public void dispose() {
        }

        @Override
        public void updateElement(Object parent, int index) {
            if (parent instanceof IViewSite) {
                SnippetRepositoryConfiguration config = availableRepositories.get(index);
                treeViewer.replace(parent, index, config);
                treeViewer.setChildCount(config, getChildren(config).length);
            } else if (parent instanceof SnippetRepositoryConfiguration) {
                treeViewer.replace(parent, index, getChildren(parent)[index]);
            }
        }

        private Object[] getChildren(Object element) {
            if (element instanceof SnippetRepositoryConfiguration) {
                return filteredSnippetsGroupedByRepoName.get((SnippetRepositoryConfiguration) element)
                        .toArray();
            }
            return new Object[0];
        }

        @Override
        public void updateChildCount(Object element, int currentChildCount) {
            int count = 0;

            if (element instanceof IViewSite) {
                count = availableRepositories.size();
            }

            if (availableRepositories.contains(element)) {
                count = getChildren(element).length;
            }

            if (count != currentChildCount) {
                treeViewer.setChildCount(element, count);
            }
        }

        @Override
        public Object getParent(Object element) {
            if (element instanceof KnownSnippet) {
                KnownSnippet knownSnippet = (KnownSnippet) element;
                return knownSnippet.config;
            }
            return null;
        }
    });

    selection = ViewersObservables.observeMultiSelection(treeViewer);

    createActions(parent);
    addToolBar(parent);
    addContextMenu();

    refreshUI();
}

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