java - 将 JFrame 的预先存在的代码放入 JPanel 中

Question

我有来自 JUNG 库的现有 Java 代码，但我想添加自定义代码来创建用户界面。我使用 Netbeans IDE 上的设计选项卡创建了用户界面。但是当我添加自定义代码时， Swing 元素似乎无法按照设计的顺序排列。我想我的问题在于设置正确的 LAYOUT

这是在 Netbeans 中设计的布局

Image One

我想要的是将以下代码添加到JPanel问题是这段代码将 JFrame 作为参数，但就我而言，我需要将其放在 JPanel

中

这是我已有的代码及其在下图中的作用: Image Two

public class EditorMouse {

    public static void main(String[] args) {

        JFrame frame = new JFrame("Interface");
        frame.setLayout(new FlowLayout());
        SparseMultigraph<GraphElements.MyVertex, GraphElements.MyEdge> g
                = new SparseMultigraph<GraphElements.MyVertex, GraphElements.MyEdge>();
        // Layout<V, E>, VisualizationViewer<V,E>
        // Map<GraphElements.MyVertex,Point2D> vertexLocations = new HashMap<GraphElements.MyVertex, Point2D>();
        Layout<GraphElements.MyVertex, GraphElements.MyEdge> layout = new StaticLayout(g);
        //layout.setSize(new Dimension(400, 350));
        VisualizationViewer<GraphElements.MyVertex, GraphElements.MyEdge> vv
                = new VisualizationViewer<GraphElements.MyVertex, GraphElements.MyEdge>(layout);
        vv.getRenderContext().setVertexLabelTransformer(new ToStringLabeller());
        vv.getRenderContext().setEdgeLabelTransformer(new ToStringLabeller());
        // Create a graph mouse and add it to the visualization viewer
        EditingModalGraphMouse gm = new EditingModalGraphMouse(vv.getRenderContext(),
                GraphElements.MyVertexFactory.getInstance(),
                GraphElements.MyEdgeFactory.getInstance());
        // Set some defaults for the Edges...
        GraphElements.MyEdgeFactory.setDefaultCapacity(10.0);
        GraphElements.MyEdgeFactory.setDefaultWeight(10.0);
        // Trying out our new popup menu mouse plugin...
        PopupVertexEdgeMenuMousePlugin myPlugin = new PopupVertexEdgeMenuMousePlugin();
        // Add some popup menus for the edges and vertices to our mouse plugin.
        JPopupMenu edgeMenu = new MyMouseMenus.EdgeMenu(frame);
        JPopupMenu vertexMenu = new MyMouseMenus.VertexMenu();
        myPlugin.setEdgePopup(edgeMenu);
        myPlugin.setVertexPopup(vertexMenu);
        gm.remove(gm.getPopupEditingPlugin());  // Removes the existing popup editing plugin
        gm.add(myPlugin);   // Add our new plugin to the mouse

        vv.setGraphMouse(gm);
        frame.getContentPane().add(vv);
        gm.setMode(ModalGraphMouse.Mode.EDITING); // Start off in editing mode
        frame.pack();
        frame.setVisible(true);
    }

Answer 1

由于 VisualizationViewer 扩展了 JPanel ，我会将初始化它的代码移动到它自己的类中，如下所示:

public class MyVisualizationViewer extends VisualizationViewer<GraphElements.MyVertex, GraphElements.MyEdge> {
    public MyVisualizationViewer() {
        super(new StaticLayout(new SparseMultigraph<GraphElements.MyVertex, GraphElements.MyEdge>()));
        this.getRenderContext().setVertexLabelTransformer(new ToStringLabeller());
        this.getRenderContext().setEdgeLabelTransformer(new ToStringLabeller());
        // Create a graph mouse and add it to the visualization viewer
        EditingModalGraphMouse gm = new EditingModalGraphMouse(this.getRenderContext(),
                GraphElements.MyVertexFactory.getInstance(),
                GraphElements.MyEdgeFactory.getInstance());
        // Set some defaults for the Edges...
        GraphElements.MyEdgeFactory.setDefaultCapacity(10.0);
        GraphElements.MyEdgeFactory.setDefaultWeight(10.0);
//        // Trying out our new popup menu mouse plugin...
        PopupVertexEdgeMenuMousePlugin myPlugin = new PopupVertexEdgeMenuMousePlugin();
//        // Add some popup menus for the edges and vertices to our mouse plugin.
        JPopupMenu edgeMenu = new MyMouseMenus.EdgeMenu(frame);
        JPopupMenu vertexMenu = new MyMouseMenus.VertexMenu();
        myPlugin.setEdgePopup(edgeMenu);
        myPlugin.setVertexPopup(vertexMenu);
        gm.remove(gm.getPopupEditingPlugin());  // Removes the existing popup editing plugin
        gm.add(myPlugin);   // Add our new plugin to the mouse
        this.setGraphMouse(gm);
    }
}

编译此类后，您可以将其从“项目”窗口拖到 JPanel 的 Netbeans 设计上。