public File addImageToCache(
BufferedImage image,
JiraWorkflow workflow,
int stepId,
String width,
String height,
boolean showLabels,
boolean maintainAspect)
throws Exception {
File file = getCacheFile(workflow, stepId, width, height, showLabels, maintainAspect);
File baseDir = new File(file.getParent());
if (!baseDir.exists()) {
baseDir.mkdirs();
}
mxPngEncodeParam param = mxPngEncodeParam.getDefaultEncodeParam(image);
FileOutputStream outputStream = new FileOutputStream(file);
try {
mxPngImageEncoder encoder = new mxPngImageEncoder(outputStream, param);
encoder.encode(image);
} finally {
IOUtils.closeQuietly(outputStream);
}
return file;
}
/** Saves XML+PNG format. */
protected void saveXmlPng(TrackSchemeFrame frame, String filename, Color bg) throws IOException {
final mxGraphComponent graphComponent = trackScheme.getGUI().graphComponent;
final mxGraph graph = trackScheme.getGraph();
// Creates the image for the PNG file
BufferedImage image =
mxCellRenderer.createBufferedImage(
graph, null, 1, bg, graphComponent.isAntiAlias(), null, graphComponent.getCanvas());
// Creates the URL-encoded XML data
mxCodec codec = new mxCodec();
String xml = URLEncoder.encode(mxXmlUtils.getXml(codec.encode(graph.getModel())), "UTF-8");
mxPngEncodeParam param = mxPngEncodeParam.getDefaultEncodeParam(image);
param.setCompressedText(new String[] {"mxGraphModel", xml});
// Saves as a PNG file
FileOutputStream outputStream = new FileOutputStream(new File(filename));
try {
mxPngImageEncoder encoder = new mxPngImageEncoder(outputStream, param);
if (image != null) {
encoder.encode(image);
} else {
JOptionPane.showMessageDialog(graphComponent, "No Image Data");
}
} finally {
outputStream.close();
}
}