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It AWT to work!?

daemon@ATHENA.MIT.EDU (Randy Gordon - Sun Victoria SE)
Tue Jun 13 19:12:32 1995

Date: Tue, 13 Jun 1995 15:54:30 -0700
From: randyg@Canada.Sun.COM (Randy Gordon - Sun Victoria SE)
To: java-interest@java.Eng.Sun.COM


Hello,

First of all Java is great!

However, I've run across a problem with keyboard focus that is puzzling 
me.  If I create a child Window object within another Window object it 
appears to capture all keyboard events?!?  The program works the way I 
expect if the child Window object is not created.

I've included below a standalone app that demonstrates the problem.

Any help would be greatly appreciated! (Using alpha3 for Solaris)

Thanks, Randy 


import java.io.*;
import java.util.*;
import awt.*;

class Test2 {
   public static void showtree(Component comp, int level) {
      Object ch;
      
      for (int i=0;i<level;i++) System.out.print("   ");
      if (comp.name == null)  {
         System.out.print("No Name");
         System.out.print("------");
         System.out.println(comp.getClass().toString());
      }
      else {
         System.out.print(comp.name);
         if (level!=0)
            System.out.print(","+comp.parent.name);
         System.out.print("------");
         System.out.println(comp.getClass().toString());
      }

      if (comp instanceof Container) {
         for (int i=0;i<((Container)comp).children.length();i++) {
            ch = ((Container)comp).getChild(i);
            showtree((Component)ch,level+1);
         }
      }
   }

   public static void main (String args[]) {
      Font fnt;
      WServer ws = new WServer();
      ws.start();

      Frame fr = new Frame(ws,false,null,400,400,Color.lightGray);
      fr.name = "myframe";
      MyWindow win = new MyWindow(fr,"Window",Color.lightGray,400,400);

      fnt = win.getFont("Dialog", Font.BOLD, 12);
      fr.setDefaultFont(fnt);
      fr.setTitle("Randy Gordon");
      fr.reshape(100,100,400,400);

      MenuBar mbar = new MenuBar(fr);
      Menu men = new Menu("File",mbar);
      new MenuItem("Foo",men);
      new MenuItem("bar",men);

      win.setLayout(null);

      Hellobutton b = new Hellobutton("Press Me","button1",win);
      b.move(100,100);

      TextField txt = new TextField(null,"textfield1",win,true);
      txt.move(100,200);
      TextField txt2 = new TextField(null,"textfield2",win,true);
      txt2.move(100,300);

      fnt = win.getFont("Helvetica", Font.BOLD, 24);
      txt.setFont(fnt);

//      Hellobutton b2 = new Hellobutton("Press Me","button2",win);
//      b2.move(100,300);

      Resizer res = new Resizer(win,"resizer1",Color.red,50,50);
      res.move(200,100);

      fr.map();

      showtree(fr,0);
   }
}

class Hellobutton extends Button {
   public Hellobutton(String l, String n, Container p) {
      super(l,n,p);
   }
   public void selected(Component c, int pos) {
      System.out.println("Hello");
      System.out.println(name);
   }
}

class MyWindow extends Window {
   public MyWindow(Container c, String s, Color col, int x, int y) {
      super(c,s,col,x,y);
   }
public void handleKeyPress(char ch, boolean asc, int mod) {
      System.out.print(ch);
      System.out.println("--->MyWindow");
}
}

class Resizer extends Window {
   public Resizer(Container c, String s, Color col, int x, int y) {
      super(c,s,col,x,y);
   }
public void handleKeyPress(char ch, boolean asc, int mod) {
      System.out.print(ch);
      System.out.println("--->Resizer");
}
/*
   public void paint() {
      graphics.setForeground(Color.black);
      graphics.drawLine(0,0,50,50);
      graphics.setForeground(Color.red);
      graphics.drawLine(0,50,50,0);
   }
*/
}

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