Java ConnectionLayer类代码示例

import org.eclipse.draw2d.ConnectionLayer; //导入依赖的package包/类
/**
 * Refreshes all outgoing or incoming connections if the super classes's anchors are moved.
 */
public void anchorMoved(ConnectionAnchor anchor) {

    ConnectionLayer cLayer = (ConnectionLayer) getLayer(LayerConstants.CONNECTION_LAYER);

    // jk (later): I'm not sure why we are refreshing all the connections; might want to try to reduce the scope.
    if (cLayer.getConnectionRouter() instanceof UCMConnectionRouter)
        ((UCMConnectionRouter) cLayer.getConnectionRouter()).refreshConnections();

    List toRefresh;
    // and forks have their outputs rearranged; therefore the connection's source are rearranged.
    if (getModel() instanceof AndFork)
        toRefresh = getModelSourceConnections();
    else
        toRefresh = getModelTargetConnections();

    // when one anchor is moved, we must inform the others as we are using mutually exclusive locations.
    for (Iterator iter = toRefresh.iterator(); iter.hasNext();) {
        NodeConnection element = (NodeConnection) iter.next();
        AndForkJoinConnectionAnchor anch = (getAnchor(element));
        if (anch != anchor)
            anch.ancestorMoved(getFigure());
    }

}
 

import org.eclipse.draw2d.ConnectionLayer; //导入依赖的package包/类
@Override
protected IFigure createMain ()
{
    final Figure baseFigure = new LayeredPane ();

    final Layer rootFigure = new Layer ();

    this.connLayer = new ConnectionLayer ();
    this.connLayer.setAntialias ( 1 );
    this.connLayer.setConnectionRouter ( ConnectionRouter.NULL );

    baseFigure.add ( this.connLayer );
    baseFigure.add ( rootFigure );

    rootFigure.setLayoutManager ( new BorderLayout () );
    rootFigure.setBackgroundColor ( ColorConstants.white );

    rootFigure.add ( createArrowFigure (), BorderLayout.RIGHT );
    rootFigure.add ( createEntryGrid ( this.connLayer ), BorderLayout.CENTER );

    return baseFigure;
}
 

import org.eclipse.draw2d.ConnectionLayer; //导入依赖的package包/类
private static int getDeepestTreeLevel(ConnectionLayer connectionLayer,
		IFigure figure) {
	final List<Connection> connectionList = getOutgoingConnections(
			connectionLayer, figure);
	if (connectionList.size() > 0) {
		final int[] ret = new int[connectionList.size()];
		for (int i = 0; i < connectionList.size(); i++) {
			ret[i] = 1 + getDeepestTreeLevel(connectionLayer,
					connectionList.get(i).getTargetAnchor().getOwner());
		}
		int maxLevel = ret[0];
		if (ret.length > 1) {
			for (int i = 1; i < ret.length; i++) {
				if (ret[i] > maxLevel) {
					maxLevel = ret[i];
				}
			}
		}
		return maxLevel;
	}
	return 0;
}
 

import org.eclipse.draw2d.ConnectionLayer; //导入依赖的package包/类
/**
 * Returns incoming connection figures of the figure parameter.
 * 
 * @param connectionLayer
 * @param figure
 * @return
 */
public static List<Connection> getIncomingConnections(
		ConnectionLayer connectionLayer, IFigure figure) {

	final List<Connection> incomingConnectionList = new ArrayList<Connection>();

	for (final Object object : connectionLayer.getChildren()) {
		if (object instanceof Connection) {
			final Connection connection = (Connection) object;
			if (connection.getTargetAnchor().getOwner() == figure) {
				incomingConnectionList.add(connection);
			}
		}
	}
	return incomingConnectionList;
}
 

import org.eclipse.draw2d.ConnectionLayer; //导入依赖的package包/类
/**
 * Returns outgoing connection figures of the figure parameter.
 * 
 * @param connectionLayer
 * @param figure
 * @return
 */
public static List<Connection> getOutgoingConnections(
		ConnectionLayer connectionLayer, IFigure figure) {

	final List<Connection> outgoingConnectionList = new ArrayList<Connection>();

	for (final Object object : connectionLayer.getChildren()) {
		if (object instanceof Connection) {
			final Connection connection = (Connection) object;
			if (connection.getSourceAnchor().getOwner() == figure) {
				outgoingConnectionList.add(connection);
			}
		}
	}
	return outgoingConnectionList;
}
 

import org.eclipse.draw2d.ConnectionLayer; //导入依赖的package包/类
public void activate() {
	super.activate();
	ScalableRootEditPart root = (ScalableRootEditPart) getViewer().getRootEditPart();
	ConnectionLayer connLayer = (ConnectionLayer) root.getLayer(LayerConstants.CONNECTION_LAYER);
	GraphicalEditPart contentEditPart = (GraphicalEditPart) root.getContents();
	FanRouter router = new FanRouter();
	router.setSeparation(100);
	ShortestPathConnectionRouter spRouter = new ShortestPathConnectionRouter(contentEditPart.getFigure());
	router.setNextRouter(spRouter);
	connLayer.setConnectionRouter(router);
	GraphSelectionManager.ME.selectionPartChanged(this);
}
 

import org.eclipse.draw2d.ConnectionLayer; //导入依赖的package包/类
@Override
protected IFigure createFigure() {
	Figure f = new FreeformLayer();
	f.setBorder(new MarginBorder(3));
	f.setLayoutManager(new FreeformLayout());

	// Create the static router for the connection layer
	ConnectionLayer connLayer = (ConnectionLayer) getLayer(LayerConstants.CONNECTION_LAYER);
	connLayer.setConnectionRouter(new ManhattanConnectionRouter());
	return f;
}
 

import org.eclipse.draw2d.ConnectionLayer; //导入依赖的package包/类
private void prepareZoomContributions(GraphicalViewer viewer) {

		ScalableFreeformRootEditPart root = new ScalableFreeformRootEditPart();

		// set clipping strategy for connection layer
		ConnectionLayer connectionLayer = (ConnectionLayer) root
				.getLayer(LayerConstants.CONNECTION_LAYER);
		connectionLayer
		.setClippingStrategy(new ViewportAwareConnectionLayerClippingStrategy(
				connectionLayer));

		List<String> zoomLevels = new ArrayList<String>(3);
		zoomLevels.add(ZoomManager.FIT_ALL);
		zoomLevels.add(ZoomManager.FIT_WIDTH);
		zoomLevels.add(ZoomManager.FIT_HEIGHT);
		root.getZoomManager().setZoomLevelContributions(zoomLevels);

		IAction zoomIn = new ZoomInAction(root.getZoomManager());
		IAction zoomOut = new ZoomOutAction(root.getZoomManager());
		viewer.setRootEditPart(root);
		getActionRegistry().registerAction(zoomIn);
		getActionRegistry().registerAction(zoomOut);

		//zoom on key strokes: ctrl++ and ctrl--
		IHandlerService service = 
				(IHandlerService)getEditorSite().getService(IHandlerService. class);

		service.activateHandler(zoomIn.getActionDefinitionId(),
				new ActionHandler(zoomIn));

		service.activateHandler(zoomOut.getActionDefinitionId(),
				new ActionHandler(zoomOut));

		// Scroll-wheel Zoom
		getGraphicalViewer().setProperty(
				MouseWheelHandler.KeyGenerator.getKey(SWT.MOD1),
				MouseWheelZoomHandler.SINGLETON);
	}
 

import org.eclipse.draw2d.ConnectionLayer; //导入依赖的package包/类
protected void refreshVisuals() {
	super.refreshVisuals();
	ConnectionLayer connectionLayer = (ConnectionLayer) getLayer(LayerConstants.CONNECTION_LAYER);
	connectionLayer.setConnectionRouter(new ShortestPathConnectionRouter(figure));
	if ((getViewer().getControl().getStyle() & SWT.MIRRORED) == 0) {
		connectionLayer.setAntialias(SWT.ON);
	}
	Animation.run(400);
}
 

import org.eclipse.draw2d.ConnectionLayer; //导入依赖的package包/类
/**
 * @see nexcore.tool.uml.ui.core.diagram.editor.AbstractDiagramEditor#initializeGraphicalViewer()
 */
@Override
protected void initializeGraphicalViewer() {
    super.initializeGraphicalViewer();
    GraphicalViewer viewer = getGraphicalViewer();
    // ManhattanConnectionRouter 설정
    if ("true".equals(PreferenceUtil.INSTANCE.getValueOfStringFieldEditor(ManagerConstant.PREFERENCE_ACTIVITYDIAGRAM_CONNECTION_ROUTER_USE))) {
        ScalableFreeformRootEditPart root = (ScalableFreeformRootEditPart) viewer.getRootEditPart();
        ConnectionLayer connLayer = (ConnectionLayer) root.getLayer(LayerConstants.CONNECTION_LAYER);
        connLayer.setConnectionRouter(new ManhattanConnectionRouter());
    }
}
 

import org.eclipse.draw2d.ConnectionLayer; //导入依赖的package包/类
public TreeLayout(int rankSpacing, ConnectionLayer connectionLayer) {
	super();
	this.rankSpacing = rankSpacing;
	this.connectionLayer = connectionLayer;
	isVertical = true;
	isTopLeftAlignment = true;
	leafSpacing = 5;
	maxTreeLevel = 0;
	graphSize = new Dimension();
}
 

import org.eclipse.draw2d.ConnectionLayer; //导入依赖的package包/类
/**
 * Creates a layered pane and the layers that should be printed.
 * 
 * @see org.eclipse.gef.print.PrintGraphicalViewerOperation
 * @return a new LayeredPane containing the printable layers
 */
protected LayeredPane createPrintableLayers() {
	FreeformLayeredPane layeredPane = new FreeformLayeredPane();
	layeredPane.add(new FreeformLayer(), PRIMARY_LAYER);
	layeredPane.add(new ConnectionLayer(), CONNECTION_LAYER);
	return layeredPane;
}
 

import org.eclipse.draw2d.ConnectionLayer; //导入依赖的package包/类
/**
 * 
 * Setup the connection router
 * 
 * @see org.eclipse.gef.editparts.AbstractEditPart#registerVisuals()
 */
protected void registerVisuals() {
    ConnectionLayer cLayer = (ConnectionLayer) getLayer(LayerConstants.CONNECTION_LAYER);
    cLayer.setConnectionRouter(new UCMConnectionRouter(getViewer().getEditPartRegistry(), (UCMmap) getDiagram()));

    super.registerVisuals();
}
 

import org.eclipse.draw2d.ConnectionLayer; //导入依赖的package包/类
public void disconnectRouter() {
    ConnectionLayer cLayer = (ConnectionLayer) getLayer(LayerConstants.CONNECTION_LAYER);
    if (cLayer != null) {
        if (cLayer.getConnectionRouter() instanceof UCMConnectionRouter) {
            UCMConnectionRouter router = (UCMConnectionRouter) cLayer.getConnectionRouter();
            router.dispose();

        }
        cLayer.setConnectionRouter(null);
    }
}
 

import org.eclipse.draw2d.ConnectionLayer; //导入依赖的package包/类
/**
 * (non-Javadoc)
 * 
 * @see org.eclipse.gef.editparts.AbstractEditPart#registerVisuals()
 */
protected void registerVisuals() {
    ConnectionLayer cLayer = (ConnectionLayer) getLayer(LayerConstants.CONNECTION_LAYER);
    cLayer.setConnectionRouter(new BendpointConnectionRouter());

    super.registerVisuals();
}