!7

sclass PrintBuffers extends DynBigNumber {
  void start {
    super.start();
    setDescription("PRINT BUFFERS");
    ownTimer(doEveryAndNow(5.0, r actualUpdate));
  }
  
  void actualUpdate {
    Set<StringBuffer> set = asSet(allPrintBuffers());
    //totalByteSizeOfCharSequences(set)
    long n = totalByteCapacityOfStringBuffers_generic(set);
    setValue(toK(n) + " K, " + n2(set, "buffer"));
  }
  
  JComponent visualize() {
    ret withCenteredButtons(super.visualize(),
      "Trim", r trimAllPrintBuffers,
      "Clear", r clearAllPrintBuffers);
  }
}