JGraphXで画像アイコンを表示する

JGraphXで画像アイコンを表示するにはmxConstantsの以下の定数を使用します。

• STYLE_SHAPE:図形の指定
• SHAPE_IMAGE:画像の図形タイプ
• STYLE_IMAGE:画像のURI

サンプルコード

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

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

sb = new SwingBuilder()
def frm = sb.frame(
  title: "JGraphX - icons",
  visible: true,
  size: [320, 150],
  resizable: true,
  contentPane: mxgc,
  defaultCloseOperation: WindowConstants.EXIT_ON_CLOSE
){

  parent = graph.getDefaultParent()
  graph.model.beginUpdate()
  try
  {
    def stylesheet = graph.getStylesheet()

    def style1 = [
      (mxConstants.STYLE_VERTICAL_LABEL_POSITION): mxConstants.ALIGN_BOTTOM,
      (mxConstants.STYLE_SHAPE): mxConstants.SHAPE_IMAGE,
      (mxConstants.STYLE_IMAGE): "file:/e:/icons/basket-empty.png"
    ]
    stylesheet.putCellStyle("style1", style1)

    def style2 = [
      (mxConstants.STYLE_VERTICAL_LABEL_POSITION): mxConstants.ALIGN_BOTTOM,
      (mxConstants.STYLE_SHAPE): mxConstants.SHAPE_IMAGE,
      (mxConstants.STYLE_IMAGE): "file:/e:/icons/basket-full.png"
    ]
    stylesheet.putCellStyle("style2", style2)

    def style3 = [
      (mxConstants.STYLE_VERTICAL_LABEL_POSITION): mxConstants.ALIGN_BOTTOM,
      (mxConstants.STYLE_SHAPE): mxConstants.SHAPE_IMAGE,
      (mxConstants.STYLE_IMAGE): "file:/e:/icons/checkout.png"
    ]
    stylesheet.putCellStyle("style3", style3)

    def v1 = graph.insertVertex(parent, null, "処理1",
      20, 20, 50, 30, "style1")
    def v2 = graph.insertVertex(parent, null, "処理2",
      130, 20, 50, 30, "style2")
    def v3 = graph.insertVertex(parent, null, "処理3",
      240, 20, 50, 30, "style3")

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

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

実行結果

関連情報
JGraphxのダウンロードページ