Name: mc57594 Date: 01/30/97


The following code works fine on Win95 but does not work
correctly on Solaris. This was not working correctly under the Beta2
release either. Since I didn't see this on the list of known bugs, I'm
resubmitting it.
To demo the problem, move to either TextItem displayed by this code and
enter something which is not a valid integer. The text should change
color. Instead, there is very strange behavior which the code should
illustrate.
Since this works exactly the way I intend on Win95, I'm assuming that
this is a bug and not something I'm messing up myself.
CODE START
**********
import java.awt.*;
import java.awt.event.*;
class TextInteger extends TextField {
   Integer value = null;
   boolean error_color_on = false;
   Color text_color = null;
public TextInteger () {
   this(null);
}
public TextInteger (int i) {
   this(new Integer (i));
}
public TextInteger (Integer i) {
   super (10);
   enableEvents (AWTEvent.FOCUS_EVENT_MASK);
   setInteger (i);
}
public void setInteger (Integer i) {
   if (i != null)
      setText (i.toString());
   else
      setText (" ");
   value = i;
}
public Integer getInteger () {
   return value;
}
public void processFocusEvent (FocusEvent e) {
   switch (e.getId()) {
   case FocusEvent.FOCUS_LOST:
      boolean error = false;
      int i;
      String svalue;
      svalue = getText ().trim();
      if (svalue.equals(""))
return;
      try {
i = Integer.parseInt (svalue);
      }
      catch (NumberFormatException e1) {
setForeground (Color.red);
error = true;
error_color_on = true;
repaint ();
requestFocus ();
return;
      }
      if (! error && error_color_on) {
setForeground (text_color);
error_color_on = false;
repaint ();
      }
      value = new Integer (i);
      break;
   case FocusEvent.FOCUS_GAINED:
      if (text_color == null)
text_color = getForeground ();
      break;
   }
   super.processFocusEvent (e);
}
public static void main (String[] args) {
   Frame f = new Frame ("Test TextInteger");
   TextInteger ti = new TextInteger (new Integer(15));
   TextInteger ti2 = new TextInteger ();
   f.setLayout(new BorderLayout ());
   f.add ("North", ti);
   f.add ("South", ti2);
   f.pack ();
   f.show ();
}
}
Rob Janes
Cummins Engine Company
###@###.###
(812) 377-7328
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