Dialogs in Applets

[Roedy Green]

Dialogs want Frame not Panels from which Applet is derived. What did
Sun intend for you to do? Are you supposed to search for a parent
frame of Applet? create one?

--
Bush crime family lost/embezzled $3 trillion from Pentagon.
Complicit Bush-friendly media keeps mum. Rumsfeld confesses on video.
http://www.infowars.com/articles/us/mckinney_grills_rumsfeld.htm

Canadian Mind Products, Roedy Green.
See http://mindprod.com/iraq.html photos of Bush's war crimes

 

[John Currier]

Dialogs want Frame not Panels from which Applet is derived. What did
Sun intend for you to do? Are you supposed to search for a parent
frame of Applet? create one?

It was very common to have a getFrame() method that searched up the
hierarchy for a Frame.

John
http://schemaspy.sourceforge.net

 

[Joan]

It was very common to have a getFrame() method that searched up
the
hierarchy for a Frame.

John
http://schemaspy.sourceforge.net

You can use getParent() then getClass() to find out what you got.
Repeat as necessary.

 

[Andrew Thompson]

Dialogs want Frame not Panels from which Applet is derived. What did
Sun intend for you to do? Are you supposed to search for a parent
frame of Applet? create one?

<sscce>
import java.awt.*;

public class DialogApplet extends java.applet.Applet {

public void init() {
Frame[] frames = Frame.getFrames();
Dialog dialog = new Dialog( frames[0] );
dialog.add( new Label("Blah!") );
dialog.pack();
dialog.setVisible(true);
}
}
</sscce>

HTH

 

[Andrew Thompson]

Dialogs want Frame not Panels from which Applet is derived. What did
Sun intend for you to do? Are you supposed to search for a parent
frame of Applet? create one?

<sscce>
import java.awt.*;

public class DialogApplet extends java.applet.Applet {

public void init() {
Frame[] frames = Frame.getFrames();

Which will not work for 1.1, it was introduced in 1.2 (damnit!)

However, this seems to work[1]..

<sscce>
import java.awt.*;

public class DialogApplet extends java.applet.Applet {

public void init() {
Dialog dialog = new Dialog( new Frame() );
dialog.add( new Label("Blah!") );
dialog.pack();
dialog.setVisible(true);
}
}
</sscce>

[1] Checked in ..
MSVM 1.1.4 (IE) and
Symantec VM 1.1.5 (Netscape Nav. 4.78)

 

[John Currier]

You can use getParent() then getClass() to find out what you got.
Repeat as necessary.

Almost correct. You'll need to use 'instanceof Frame' instead of
'getClass()' or you'll only find non-subclassed Frames.

John
http://schemaspy.sourceforge.net

 

[Andrew Thompson]

Will work, but will not make a "child" of the browser Frame. Which
means it will not hide when the browser hides, will not inherit its
icon etc.

Riiight. That *could* explain the strange
behaviour I'd noted in a Java 1.1 splash screen.

I'll have to revisit the code to investigate further.

 

[Tor Iver Wilhelmsen]

Dialog dialog = new Dialog( new Frame() );

Will work, but will not make a "child" of the browser Frame. Which
means it will not hide when the browser hides, will not inherit its
icon etc.

 

[Tor Iver Wilhelmsen]

I'll have to revisit the code to investigate further.

The best way is to iterate on getParent() until you hit a Frame or
null.

 

[Pete Barrett]

Dialogs want Frame not Panels from which Applet is derived. What did
Sun intend for you to do? Are you supposed to search for a parent
frame of Applet? create one?

If you're using Swing (and a JDialog is derived from Dialog, so is not
a JAnythingElse) there's a SwingUtilities method to search for the
closest parent which is an instance of a particular class (Frame, in
this case).

Pete Barrett