Examples with ViewportAutoexposeHelper org.eclipse.gef.editparts.ViewportAutoexposeHelper used on opensource projects

Example 1 with ViewportAutoexposeHelper

use of org.eclipse.gef.editparts.ViewportAutoexposeHelper in project yamcs-studio by yamcs.

the class OPIEditor method configureGraphicalViewer.

@Override
protected void configureGraphicalViewer() {
    super.configureGraphicalViewer();
    ScrollingGraphicalViewer viewer = (ScrollingGraphicalViewer) getGraphicalViewer();
    viewer.setEditPartFactory(new WidgetEditPartFactory(ExecutionMode.EDIT_MODE));
    ScalableFreeformRootEditPart root = new ScalableFreeformRootEditPart() {

        /**
         * {@inheritDoc}
         */
        @Override
        public Object getAdapter(@SuppressWarnings("rawtypes") final Class key) {
            if (key == AutoexposeHelper.class) {
                return new ViewportAutoexposeHelper(this);
            }
            return super.getAdapter(key);
        }
    };
    // set clipping strategy for connection layer of connection can be hide
    // when its source or target is not showing.
    ConnectionLayer connectionLayer = (ConnectionLayer) root.getLayer(LayerConstants.CONNECTION_LAYER);
    connectionLayer.setClippingStrategy(new PatchedConnectionLayerClippingStrategy(connectionLayer));
    viewer.setRootEditPart(root);
    viewer.setKeyHandler(new GraphicalViewerKeyHandler(viewer).setParent(getCommonKeyHandler()));
    ContextMenuProvider cmProvider = new OPIEditorContextMenuProvider(viewer, getActionRegistry());
    viewer.setContextMenu(cmProvider);
    getSite().registerContextMenu(cmProvider, viewer);
    // Grid Action
    IAction action = new ToggleGridAction(getGraphicalViewer()) {

        @Override
        public boolean isChecked() {
            return getDisplayModel().isShowGrid();
        }

        @Override
        public void run() {
            getCommandStack().execute(new SetWidgetPropertyCommand(displayModel, DisplayModel.PROP_SHOW_GRID, !isChecked()));
        }
    };
    getActionRegistry().registerAction(action);
    // Ruler Action
    configureRuler();
    action = new ToggleRulerVisibilityAction(getGraphicalViewer()) {

        @Override
        public boolean isChecked() {
            return getDisplayModel().isShowRuler();
        }

        @Override
        public void run() {
            getCommandStack().execute(new SetWidgetPropertyCommand(displayModel, DisplayModel.PROP_SHOW_RULER, !isChecked()));
        }
    };
    getActionRegistry().registerAction(action);
    // Snap to Geometry Action
    IAction geometryAction = new ToggleSnapToGeometryAction(getGraphicalViewer()) {

        @Override
        public boolean isChecked() {
            return getDisplayModel().isSnapToGeometry();
        }

        @Override
        public void run() {
            getCommandStack().execute(new SetWidgetPropertyCommand(displayModel, DisplayModel.PROP_SNAP_GEOMETRY, !isChecked()));
        }
    };
    getActionRegistry().registerAction(geometryAction);
    // configure zoom actions
    ZoomManager zm = root.getZoomManager();
    if (zm != null) {
        List<String> zoomLevels = new ArrayList<>(3);
        zoomLevels.add(ZoomManager.FIT_ALL);
        zoomLevels.add(ZoomManager.FIT_WIDTH);
        zoomLevels.add(ZoomManager.FIT_HEIGHT);
        zm.setZoomLevelContributions(zoomLevels);
        zm.setZoomLevels(createZoomLevels());
        IAction zoomIn = new ZoomInAction(zm);
        IAction zoomOut = new ZoomOutAction(zm);
        getActionRegistry().registerAction(zoomIn);
        getActionRegistry().registerAction(zoomOut);
    }
    /* scroll-wheel zoom */
    getGraphicalViewer().setProperty(MouseWheelHandler.KeyGenerator.getKey(SWT.MOD1), MouseWheelZoomHandler.SINGLETON);
    // status line listener
    getGraphicalViewer().addSelectionChangedListener(new ISelectionChangedListener() {

        private IStatusLineManager statusLine = ((ActionBarContributor) getEditorSite().getActionBarContributor()).getActionBars().getStatusLineManager();

        @Override
        public void selectionChanged(SelectionChangedEvent event) {
            updateStatusLine(statusLine);
        }
    });
}