* Throws an {@link ActivitiException} when {@link #close()} is already
* called.
*/
public InputStream generateImage(String imageType) {
if (closed) {
throw new ActivitiImageException("ProcessDiagramGenerator already closed");
}
ByteArrayOutputStream out = new ByteArrayOutputStream();
try {
// Try to remove white space
minX = (minX <= 5) ? 5 : minX;
minY = (minY <= 5) ? 5 : minY;
BufferedImage imageToSerialize = processDiagram;
if (minX >= 0 && minY >= 0) {
imageToSerialize = processDiagram.getSubimage(minX - 5, minY - 5, canvasWidth - minX + 5, canvasHeight - minY + 5);
}
ImageIO.write(imageToSerialize, imageType, out);
} catch (IOException e) {
throw new ActivitiImageException("Error while generating process image", e);
} finally {
try {
if (out != null) {
out.close();
}