Package com.mxgraph.util

Class mxImageBundle

  • public class mxImageBundle
extends java.lang.Object
    Maps from keys to base64 encoded images or file locations. All values must be URLs or use the format data:image/format followed by a comma and the base64 encoded image data, eg. "data:image/gif,XYZ", where XYZ is the base64 encoded image data. To add a new image bundle to an existing graph, the following code is used: mxImageBundle bundle = new mxImageBundle(); bundle.PutImage("myImage", "data:image/gif,R0lGODlhEAAQAMIGAAAAAICAAICAgP" + "//AOzp2O3r2////////yH+FUNyZWF0ZWQgd2l0aCBUaGUgR0lNUAAh+QQBCgAHACwAAAAA" + "EAAQAAADTXi63AowynnAMDfjPUDlnAAJhmeBFxAEloliKltWmiYCQvfVr6lBPB1ggxN1hi" + "laSSASFQpIV5HJBDyHpqK2ejVRm2AAgZCdmCGO9CIBADs="); graph.addImageBundle(bundle); The image can then be referenced in any cell style using image=myImage. If you are using mxOutline, you should use the same image bundles in the graph that renders the outline. To convert a given BufferedImage to a base64 encoded String, the following code can be used: ByteArrayOutputStream bos = new ByteArrayOutputStream(); ImageIO.write(image, "png", bos); System.out.println("base64=" + mxBase64.encodeToString( bos.toByteArray(), false)); The value is decoded in mxUtils.loadImage. The keys for images are resolved and the short format above is converted to a data URI in mxGraph.postProcessCellStyle.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected java.util.Map<java.lang.String,​java.lang.String> images
      Maps from keys to images.

    • Constructor Summary

      Constructors 
      Constructor Description
      mxImageBundle()  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.String getImage​(java.lang.String key)
      Returns the value for the given key.
      java.util.Map<java.lang.String,​java.lang.String> getImages()
      Returns the images.
      void putImage​(java.lang.String key, java.lang.String value)
      Adds the specified entry to the map.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • images

        protected java.util.Map<java.lang.String,​java.lang.String> images
        Maps from keys to images.

    • Constructor Detail

      • mxImageBundle

        public mxImageBundle()

    • Method Detail

      • getImages

        public java.util.Map<java.lang.String,​java.lang.String> getImages()
        Returns the images.

      • putImage

        public void putImage​(java.lang.String key,
                     java.lang.String value)
        Adds the specified entry to the map.

      • getImage

        public java.lang.String getImage​(java.lang.String key)
        Returns the value for the given key.