// Create a document with some initial text
Document doc = new PlainDocument();
try {
doc.insertString(0, "Three blind mice", null);
} catch (BadLocationException ex) {ex.printStackTrace();}
// Create two "renders" which will simulate painting the document
DocRenderer r1 = new DocRenderer("One", doc);
DocRenderer r2 = new DocRenderer("Two", doc);
// Start the renders in new threads. We'll print out timing data to show how
// things work
long startTime = System.currentTimeMillis();
r1.renderInThread(startTime);
r2.renderInThread(startTime);
// Wait one second before writing
try {
Thread.sleep(1000);
} catch (InterruptedException ex) {}
// Attempt to add some content to the document
System.out.println("Start writing: "
+ (System.currentTimeMillis()-startTime));
try {
doc.insertString(doc.getLength(), ", see how they run.", null);
} catch (BadLocationException ex) {ex.printStackTrace();}
System.out.println("Done writing: "
+ (System.currentTimeMillis()-startTime));
// Render the modified document
r1.renderInThread(startTime);
