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| public class CheckThreadViolationRepaintManager extends RepaintManager {
// it is recommended to pass the complete check
private boolean completeCheck = true;
public boolean isCompleteCheck() {
return completeCheck;
}
public void setCompleteCheck(boolean completeCheck) {
this.completeCheck = completeCheck;
}
public synchronized void addInvalidComponent(JComponent component) {
checkThreadViolations(component);
super.addInvalidComponent(component);
}
public void addDirtyRegion(JComponent component, int x, int y, int w, int h) {
checkThreadViolations(component);
super.addDirtyRegion(component, x, y, w, h);
}
private void checkThreadViolations(JComponent c) {
if (!SwingUtilities.isEventDispatchThread() && (completeCheck || c.isShowing())) {
Exception exception = new Exception();
boolean repaint = false;
boolean fromSwing = false;
StackTraceElement[] stackTrace = exception.getStackTrace();
for (StackTraceElement st : stackTrace) {
if (repaint && st.getClassName().startsWith("javax.swing.")) {
fromSwing = true;
}
if ("repaint".equals(st.getMethodName())) {
repaint = true;
}
}
if (repaint && !fromSwing) {
//no problems here, since repaint() is thread safe
return;
}
exception.printStackTrace();
}
}
} |
