graph - 检索Graphstream中的鼠标单击

由于找不到任何具体的讨论位置，因此我想在这里发布...
我正在使用graphstream 1.1（http://graphstream-project.org/）（一种Java图形可视化库）来开发数据可视化工具。我需要检索节点上的鼠标单击以显示相关数据，但是在完成了库教程之后，我仍然不清楚如何执行此操作。有谁使用过此方法，可以为我提供更直接的答案吗？我正在关注的教程位于：

http://graphstream-project.org/doc/Tutorials/Graph-Visualisation_1.0/#retrieving-mouse-clicks-on-the-viewer

public class Clicks implements ViewerListener {
    protected boolean loop;

    public static void main(String args[]) {
        new Clicks();
    }
    public Clicks() {
    // We do as usual to display a graph. This
    // connect the graph outputs to the viewer.
    // The viewer is a sink of the graph.
        Graph graph = new SingleGraph("Clicks");
        Viewer viewer = graph.display();

    // The default action when closing the view is to quit
    // the program.
        viewer.setCloseFramePolicy(Viewer.CloseFramePolicy.HIDE_ONLY);

    // We connect back the viewer to the graph,
    // the graph becomes a sink for the viewer.
    // We also install us as a viewer listener to
    // intercept the graphic events.
        ViewerPipe fromViewer = viewer.newViewerPipe();
        fromViewer.addViewerListener(this);
        fromViewer.addSink(graph);

    // Then we need a loop to wait for events.
    // In this loop we will need to call the
    // pump() method to copy back events that have
    // already occured in the viewer thread inside
    // our thread.

        while(loop) {
            fromViewer.pump();
        }
    }

    viewClosed(String id) {
        loop = false;
    }

    buttonPushed(String id) {
        System.out.println("Button pushed on node "+id);
    }

    buttonReleased(String id) {
        System.out.println("Button released on node "+id);
    }
}

最佳答案

刚解决！我向他们的邮件组发送了一封电子邮件。网站上的教程代码缺少一些信息。这三个函数必须是公共无效的，并且必须添加其他“导入”：

import org.graphstream.ui.swingViewer.Viewer;
import org.graphstream.ui.swingViewer.ViewerListener;
import org.graphstream.ui.swingViewer.ViewerPipe;