TWaver局部自动布局及嵌套Group处置

TWaver局部自动布局及嵌套Group处理

TWaver提供了一些布局算法帮助我们快速为网元设置位置，很多情况下已经够用了，但是对于一些复杂的布局还需要我们自己做一些处理，看下面这个例子：

运行截图：

这个时候直接使用TNetwork#doLayout就不好使了，因为doLayout会对network中所有网元使用同一种布局算法，但是截图中Group下多个子Group各有自己的布局方式，我的解决办法是，先对最外层的Group整个布局，然后递归遍历子Group，单独对他们进行布局

代码实现：

在这个demo中，首先用第一种方式对最外层的Group进行布局：

public class LayoutTest extends JPanel {    TDataBox layoutDatabox=new TDataBox();    TNetwork layoutNetwork=new TNetwork(layoutDatabox);    public LayoutTest(){        TNetwork network=new TNetwork();        ResizableNode gatewayNode=new ResizableNode();        gatewayNode.putCustomDraw(true);        gatewayNode.putCustomDrawShapeFactory(TWaverConst.SHAPE_ROUND_RECTANGLE_HALF);        gatewayNode.putCustomDrawGradient(false);        gatewayNode.putCustomDrawFillColor(new Color(254, 254, 206));        gatewayNode.setSize(70, 30);        gatewayNode.setName("Gateway");        gatewayNode.putLabelPosition(TWaverConst.POSITION_CENTER);        Group group1=createGroup(4,TWaverConst.LAYOUT_TREE);        Group group1_1=createGroup(12,TWaverConst.LAYOUT_CIRCULAR);        Group group1_2=createGroup(5,TWaverConst.LAYOUT_EAST);        Link group1_2Link=new Link((Node)group1.getChildren().get(0),(Node)group1_2.getChildren().get(0));        setLinkStyle(group1_2Link);        group1.addChild(group1_2);        group1.addChild(group1_2Link);        Link group1_1Link=new Link((Node)group1.getChildren().get(0),(Node)group1_1.getChildren().get(0));        setLinkStyle(group1_1Link);        group1.addChild(group1_1);        group1.addChild(group1_1Link);//layoutNetwork是用来布局的临时network//生成Group时，已经将布局方式存入ClientProperty        layoutDatabox.addElementWithDescendant(group1);        layoutNetwork.doLayout((Integer)group1.getClientProperty("layout"),false);        recursionChild(group1);        TDataBox box=new TDataBox();        box.addElementWithDescendant(group1);        box.addElement(gatewayNode);        group1.putGroupOpaque(true);        group1.putGroupFillColor(new Color(154,206,254));        network.setDataBox(box);        this.setLayout(new GridLayout(1,3));        this.add(network);        Layer layer=new Layer();        box.getLayerModel().addLayer(layer);        box.getLayerModel().moveToTop(layer);        Link link1=new Link(group1,gatewayNode);        setLinkStyle(link1);        link1.setLinkType(TWaverConst.LINK_TYPE_ORTHOGONAL);        link1.setLayerID(layer.getID());        box.addElement(link1);    }    /**     * 递归Group设置布局     * @param group     */    private void recursionChild(Group group){        for(int i=0;i<group.getChildren().size();i++){            Element element= (Element) group.getChildren().get(i);            if(element instanceof Group){                Group childGroup=((Group)element);                recursionChild(childGroup);//如果有子Group，会一直递归//使用两种方式结合，将要布局的子group加入到layoutNetwork的SelectionModel                layoutDatabox.getSelectionModel().clearSelection();                layoutDatabox.getSelectionModel().appendSelection(childGroup.getChildren());                layoutNetwork.doLayout((Integer) ((Group) element).getClientProperty("layout"), false);                layoutDatabox.getSelectionModel().clearSelection();            }        }    }    /**     * 产生测试Group及Node     * @param childCount     * @param layout     * @return     */    private Group createGroup(int childCount,int layout){        Group group=new Group();        group.setExpand(true);        group.putClientProperty("layout",layout);        ResizableNode router=new ResizableNode();        router.putCustomDraw(true);        router.putCustomDrawShapeFactory(TWaverConst.SHAPE_RECTANGLE);        router.putCustomDrawGradient(false);        router.putCustomDrawFillColor(new Color(254, 254, 206));        router.setSize(60, 20);        router.setName("Router");        router.putLabelPosition(TWaverConst.POSITION_CENTER);        group.addChild(router);        for(int i=0;i<childCount;i++){            Node childNode=new Node();            Link link=new Link(router,childNode);            childNode.putCustomDraw(true);            childNode.putCustomDrawShapeFactory(TWaverConst.SHAPE_RECTANGLE);            childNode.putCustomDrawGradient(false);            childNode.putCustomDrawFillColor(new Color(254,202,2));            childNode.setName("C"+i);            childNode.putLabelPosition(TWaverConst.POSITION_CENTER);            setLinkStyle(link);            group.addChild(childNode);            group.addChild(link);        }        return group;    }    /**     * 设置link样式     * @param link     */    public void setLinkStyle(Link link){        link.putLinkColor(Color.black);        link.putLinkOutlineWidth(0);        link.putLinkWidth(1);        link.putLinkAntialias(true);        link.putLinkToArrow(true);        link.putLinkToArrowOutline(false);    }    public static void main(String[] args){        SwingUtilities.invokeLater(new Runnable() {            @Override            public void run() {                JFrame frame=new JFrame("布局");                frame.setSize(1000,700);                frame.setContentPane(new LayoutTest());                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);                frame.setLocationRelativeTo(null);                frame.setVisible(true);            }        });    }}

代码和思路都很简单，希望能抛砖引玉，大家有建议或好的想法也可以交流一下。