JGraphXで図形の上でポップアップメニューを表示する

JGraphXで図形の上でポップアップメニューを表示するには、以下のコードのようにmxMouseAdapterクラスを使用します。

サンプルコード

import java.awt.*
import java.awt.event.*
import javax.swing.*
import groovy.swing.*
import com.mxgraph.swing.*
import com.mxgraph.swing.util.*
import com.mxgraph.view.*
import com.mxgraph.util.mxConstants


class MyMouseAdapter extends mxMouseAdapter
{
  def swingbuilder
  def graphcomp
  public MyMouseAdapter(asb, amxgc)
  {
    swingbuilder = asb
    graphcomp = amxgc
  }
  @Override
  public void mouseClicked(MouseEvent ev)
  {
    if( SwingUtilities.isRightMouseButton(ev) && graphcomp.getCellAt(ev.getX(), ev.getY()) != null ){
      swingbuilder.popup.show(graphcomp, ev.getX(), ev.getY())
    }
  }
}

def graph = new mxGraph()
def mxgc = new mxGraphComponent(graph)

sb = new SwingBuilder()
def frm = sb.frame(
  title: "JGraphX - popup menu on cells",
  visible: true,
  size: [400, 150],
  resizable: true,
  show:true,
  contentPane: mxgc,
  defaultCloseOperation: WindowConstants.EXIT_ON_CLOSE
){
  popupMenu(id:"popup"){
    menuItem(text:"show cell label", mnemonic: "S", actionPerformed:{
      def sm = graph.getSelectionModel()
      for(cell in sm.getCells()){
        println "selected:${graph.getLabel(cell)}"
      }
    })
  }

  parent = graph.getDefaultParent()
  graph.model.beginUpdate()
  try
  {

    def v1 = graph.insertVertex(parent, null, "処理1",
      20, 20, 50, 30, "style1")
    def v2 = graph.insertVertex(parent, null, "処理2",
      170, 20, 50, 30, "style2")
    def v3 = graph.insertVertex(parent, null, "処理3",
      320, 20, 50, 30, "style3")

    graph.insertEdge(parent, null, "正常終了", v1, v2)
    graph.insertEdge(parent, null, "正常終了", v2, v3)

    mxgc.getGraphControl().addMouseListener(new MyMouseAdapter(sb, mxgc))

  }
  finally
  {
    graph.model.endUpdate()
  }
}

実行結果

関連情報
JGraphxのダウンロードページ