Java 类org.eclipse.gef.ui.actions.ToggleGridAction 实例源码

@Override
protected void configureGraphicalViewer() {
    super.configureGraphicalViewer();
    ScalableFreeformRootEditPart rootEditPart = new ScalableFreeformRootEditPart();

    GraphicalViewer viewer = getGraphicalViewer();
    viewer.setRootEditPart(rootEditPart);
    getGraphicalViewer().setEditPartFactory(
            new DesignerEditPartFactory(getParentEditor()));
    configureEditPartViewer(viewer);
    ((FigureCanvas) viewer.getControl())
            .setScrollBarVisibility(FigureCanvas.ALWAYS);
    getActionRegistry().registerAction(
            new ToggleGridAction(getGraphicalViewer()));
    getActionRegistry().registerAction(
            new ToggleSnapToGeometryAction(getGraphicalViewer()));
}

@Override
protected void initializeGraphicalViewer() {
    super.initializeGraphicalViewer();
    GraphicalViewer viewer=this.getGraphicalViewer();
    viewer.setKeyHandler(new GraphicalViewerKeyHandler(viewer));
    this.getActionRegistry().registerAction(new ToggleGridAction(viewer));
}

protected void configureGraphicalViewer() {
    super.configureGraphicalViewer();

    double[] zoomLevels;
    List<String> zoomContributions;

    GraphicalViewer viewer = getGraphicalViewer();
    viewer.setEditPartFactory(gw4eEditPartFactory);

    keyHandler = new KeyHandler();

    keyHandler.put(KeyStroke.getPressed(SWT.DEL, 127, 0),
            getActionRegistry().getAction(ActionFactory.DELETE.getId()));

    keyHandler.put(KeyStroke.getPressed(SWT.F2, 0), getActionRegistry().getAction(GEFActionConstants.DIRECT_EDIT));

    keyHandler.put(KeyStroke.getPressed('+', SWT.KEYPAD_ADD, 0),
            getActionRegistry().getAction(GEFActionConstants.ZOOM_IN));

    keyHandler.put(KeyStroke.getPressed('-', SWT.KEYPAD_SUBTRACT, 0),
            getActionRegistry().getAction(GEFActionConstants.ZOOM_OUT));

    getGraphicalViewer().setKeyHandler(new GraphicalViewerKeyHandler(getGraphicalViewer()).setParent(keyHandler));

    ScalableRootEditPart rootEditPart = new ScalableRootEditPart();
    viewer.setRootEditPart(rootEditPart);

    ZoomManager manager = rootEditPart.getZoomManager();
    getActionRegistry().registerAction(new ZoomInAction(manager));
    getActionRegistry().registerAction(new ZoomOutAction(manager));

    zoomLevels = new double[] { 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 3.0, 4.0, 5.0, 10.0, 20.0 };
    manager.setZoomLevels(zoomLevels);

    zoomContributions = new ArrayList<String>();
    zoomContributions.add(ZoomManager.FIT_ALL);
    zoomContributions.add(ZoomManager.FIT_HEIGHT);
    zoomContributions.add(ZoomManager.FIT_WIDTH);
    manager.setZoomLevelContributions(zoomContributions);

    getActionRegistry().registerAction(new ToggleGridAction(getGraphicalViewer()));
    getActionRegistry().registerAction(new ToggleSnapToGeometryAction(getGraphicalViewer()));
    getActionRegistry().registerAction(new ClearEdgeBendpointLayoutAction(this));

    ContextMenuProvider provider = new ContextMenuProvider(this, viewer, getActionRegistry());
    viewer.setContextMenu(provider);
}

private void reigsterToggleGridAction() {
    IAction action = new ToggleGridAction(getGraphicalViewer());
    getActionRegistry().registerAction(action);
}

@SuppressWarnings("unchecked")
protected void initViewerAction(GraphicalViewer viewer) {
    final ScalableFreeformRootEditPart rootEditPart = new PagableFreeformRootEditPart(diagram);
    viewer.setRootEditPart(rootEditPart);

    final ZoomManager manager = rootEditPart.getZoomManager();

    final double[] zoomLevels = new double[] { 0.1, 0.25, 0.5, 0.75, 0.8, 1.0, 1.5, 2.0, 2.5, 3.0, 4.0, 5.0, 10.0, 20.0 };
    manager.setZoomLevels(zoomLevels);

    final List<String> zoomContributions = new ArrayList<>();
    zoomContributions.add(ZoomManager.FIT_ALL);
    zoomContributions.add(ZoomManager.FIT_HEIGHT);
    zoomContributions.add(ZoomManager.FIT_WIDTH);
    manager.setZoomLevelContributions(zoomContributions);

    final ZoomInAction zoomInAction = new ZoomInAction(manager);
    final ZoomOutAction zoomOutAction = new ZoomOutAction(manager);
    final ZoomAdjustAction zoomAdjustAction = new ZoomAdjustAction(manager);

    getActionRegistry().registerAction(zoomInAction);
    getActionRegistry().registerAction(zoomOutAction);
    getActionRegistry().registerAction(zoomAdjustAction);

    addKeyHandler(zoomInAction);
    addKeyHandler(zoomOutAction);

    final IFigure gridLayer = rootEditPart.getLayer(LayerConstants.GRID_LAYER);
    gridLayer.setForegroundColor(DesignResources.GRID_COLOR);

    IAction action = new ToggleGridAction(viewer);
    getActionRegistry().registerAction(action);

    action = new ChangeBackgroundColorAction(this, diagram);
    getActionRegistry().registerAction(action);
    getSelectionActions().add(action.getId());

    action = new ToggleMainColumnAction(this);
    getActionRegistry().registerAction(action);

    action = new LockEditAction(this);
    getActionRegistry().registerAction(action);

    action = new ExportToDBAction(this);
    getActionRegistry().registerAction(action);

    this.actionBarContributor = new ERDiagramActionBarContributor(zoomComboContributionItem);
}