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< div class = "header" >
< div class = "subTitle" > com.mxgraph.util< / div >
< h2 title = "Class mxImageBundle" class = "title" > Class mxImageBundle< / h2 >
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< li > java.lang.Object< / li >
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< pre > public class < span class = "typeNameLabel" > mxImageBundle< / span >
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extends java.lang.Object< / pre >
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< div class = "block" > Maps from keys to base64 encoded images or file locations. All values must
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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:
< code >
mxImageBundle bundle = new mxImageBundle();
bundle.PutImage("myImage", "data:image/gif,R0lGODlhEAAQAMIGAAAAAICAAICAgP" +
"//AOzp2O3r2////////yH+FUNyZWF0ZWQgd2l0aCBUaGUgR0lNUAAh+QQBCgAHACwAAAAA" +
"EAAQAAADTXi63AowynnAMDfjPUDlnAAJhmeBFxAEloliKltWmiYCQvfVr6lBPB1ggxN1hi" +
"laSSASFQpIV5HJBDyHpqK2ejVRm2AAgZCdmCGO9CIBADs=");
graph.addImageBundle(bundle);
< / code >
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:
< code >
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ImageIO.write(image, "png", bos);
System.out.println("base64=" + mxBase64.encodeToString(
bos.toByteArray(), false));
< / code >
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
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mxGraph.postProcessCellStyle.< / div >
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< td class = "colFirst" > < code > protected java.util.Map< java.lang.String,java.lang.String> < / code > < / td >
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< td class = "colLast" > < code > < span class = "memberNameLink" > < a href = "../../../com/mxgraph/util/mxImageBundle.html#images" > images< / a > < / span > < / code >
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< div class = "block" > Maps from keys to images.< / div >
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< / table >
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< / ul >
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< tr >
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< td class = "colLast" > < code > < span class = "memberNameLink" > < a href = "../../../com/mxgraph/util/mxImageBundle.html#getImage-java.lang.String-" > getImage< / a > < / span > (java.lang.String key)< / code >
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< div class = "block" > Returns the value for the given key.< / div >
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< td class = "colLast" > < code > < span class = "memberNameLink" > < a href = "../../../com/mxgraph/util/mxImageBundle.html#getImages--" > getImages< / a > < / span > ()< / code >
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< div class = "block" > Returns the images.< / div >
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< / tr >
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java.lang.String value)< / code >
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< div class = "block" > Adds the specified entry to the map.< / div >
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< pre > protected java.util.Map< java.lang.String,java.lang.String> images< / pre >
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< div class = "block" > Maps from keys to images.< / div >
< / li >
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< pre > public java.util.Map< java.lang.String,java.lang.String> getImages()< / pre >
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< div class = "block" > Returns the images.< / div >
< / li >
< / ul >
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< a name = "putImage-java.lang.String-java.lang.String-" >
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< pre > public void putImage(java.lang.String key,
java.lang.String value)< / pre >
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< div class = "block" > Adds the specified entry to the map.< / div >
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< div class = "block" > Returns the value for the given key.< / div >
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