[310] in java-interest
Re: access to container or window
daemon@ATHENA.MIT.EDU (Lein Ton)
Wed Jun 14 12:32:05 1995
Date: Wed, 14 Jun 1995 12:05:31 -0400
From: ton@cc.gatech.edu (Lein Ton)
To: rizzotti.sven@ch.swissbank.com
Cc: java-interest@java.sun.com
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> ----- Begin Included Message -----
>
> A lot of the classes like List, TextField etc. need a container which can be
> a form or a window. where do I get this variable from inside my applet
> subclass ?
>
> __Sven
----- End Included Message -----
Included is a program that opens a window within
the hotjava screen. I added a textfield and
ended up having the same problem that Randy
Gordon had (textfields don't accept input). I hope
the program includes the things you want to know,
otherwise I don't understand your problem.
have fun,
Lein Ton
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import awt.*;
import browser.*;
class LineDrawer extends Applet {
int xStart=0;
int yStart=0;
int xEnd = 0;
int yEnd = 0;
MovingButton aButton;
MyWindowClass aWindow;
TextField aTextField;
public void mouseDown(int x, int y) {
xStart = x;
yStart = y;
aWindow.scrollVertically(10);
}
public void mouseUp(int x, int y) {
xEnd = x;
yEnd = y;
repaint();
}
public void init() {
resize(200, 200);
aWindow = new MyWindowClass(item.parent);
aWindow.setSticky(true);
aWindow.drawString("I'm fine", 1,1);
aWindow.map();
aButton = new MovingButton("press me too" ,"", item.parent);
aButton.map();
aTextField = new TextField(new String(""), new String(""),item.parent, true);
aTextField.move(150,10);
aTextField.map();
}
public void stop() {
aTextField.dispose();
aButton.dispose();
aWindow.dispose();
super.stop();
}
public void destroy() {
// remember to always dispose the items in the reverse order the were created.
aTextField.dispose();
aButton.dispose();
aWindow.dispose();
super.destroy();
}
public void paint(Graphics g) {
g.drawLine(xStart, yStart, xEnd, yEnd);
}
};
class MovingButton extends Button {
int xCoord = 1;
int yCoord = 1;
public MovingButton(String l, String n, Window p) {
super(l, n, p);
}
public void selected(Component c, int pos) {
move((xCoord=xCoord+10),(yCoord=yCoord+10));
}
}
class MyWindowClass extends DisplayItemWindow {
MovingButton aButton;
Scrollbar aScrollbar;
public MyWindowClass(DisplayItemWindow parent) {
super(parent, new String(""));
aButton = new MovingButton("Press Me", "", this);
aButton.map();
setSticky(false);
}
public void dispose() {
aButton.dispose();
super.dispose();
}
}
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