Navigation around different JFrames

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Bastian Hammer - 17 Nov 2004 12:30 GMT

Hi :)

I need to navigate around different JFrames.

I´ve got:

class MainView extends JFrame

class DefaultView extends MainView
class ManufacturerView extends MainView
class ArticlelView extends MainView

I always overwrite 1 to 3 Methods, wich are different at the SubViews
( Navigation,AricleInfo and so on )

Navigation are buttons, if a user clicks on a button, correct view
ough to be loaded.

My public static void main ( String[] args ) looks like this at the
moment:
[code]
    JFrame frame = new MainView ( ControllerObject );
    frame.pack ( );
    frame.setSize ( 1024, 768 );
    frame.setVisible ( true );
    frame.show ( );
[/code]

Within ControllerObject there are important values for the next view.

How could I get it work, that if I click a button, the correct next
view gets loaded?

I´ve tried CardLayout, but it seems not to work with JFrame:

    JFrame frame = new MainView ( ControllerObjekt );

    CardLayout ACardLayout = new CardLayout ( );
    ACardLayout.addLayoutComponent( frame, "default" );

    ACardLayout.show( frame, "default");

java.lang.IllegalArgumentException: wrong parent for CardLayout
First parameter has to be no JFrame, but I need JFrame :-/

Is there another possibility to get it work?

Thank you
Bye, Bastian

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Andrei Kouznetsov - 17 Nov 2004 17:40 GMT

> class MainView extends JFrame
>
> class DefaultView extends MainView
> class ManufacturerView extends MainView
> class ArticlelView extends MainView

<snip>

> I?ve tried CardLayout, but it seems not to work with JFrame:
>
[quoted text clipped - 9 lines]
>
> Is there another possibility to get it work?

you have a bit wrong design, make your MainView extend JPanel, then you can
use CardLayout.

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Bastian Hammer - 17 Nov 2004 18:34 GMT

>you have a bit wrong design, make your MainView extend JPanel, then you can
>use CardLayout.

this.setBounds        ( 0, 0, 1024, 768 );
this.setResizable        ( false );
this.setName        ( "POS" );
this.setUndecorated    ( true );

this.setDefaultCloseOperation(javax.swing.JFrame.EXIT_ON_CLOSE);
this.setContentPane    ( getJContentPane ( ) );
this.setVisible        ( true );

I need no Frame around my Application.

I need 1024 x 768 px without any border, so I can´t use JPanel, can I?

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Andrei Kouznetsov - 17 Nov 2004 19:05 GMT

> >you have a bit wrong design, make your MainView extend JPanel, then you can
> >use CardLayout.
[quoted text clipped - 11 lines]
>
> I need 1024 x 768 px without any border, so I can?t use JPanel, can I?

you can:

JFrame frame = new JFrame();
frame.setBounds ( 0, 0, 1024, 768 );
frame.setResizable ( false );
frame.setName ( "POS" );
frame.setUndecorated ( true );

frame.setDefaultCloseOperation(javax.swing.JFrame.EXIT_ON_CLOSE);
frame.setContentPane ( getJContentPane ( ) ); //whatever JContentPane is
frame.setVisible(true);

however I can't see from your code snippet nothing about your Views...

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Andrei Kouznetsov
http://uio.dev.java.net Unified I/O for Java
http://reader.imagero.com Java image reader
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Bastian Hammer - 17 Nov 2004 21:51 GMT

> JFrame frame = new JFrame();
> frame.setBounds ( 0, 0, 1024, 768 );
[quoted text clipped - 7 lines]
>
>however I can't see from your code snippet nothing about your Views...

That´s a code snippet from my MainView extends JFrame

protected void initialize ( )
{
this.setBounds ( 0, 0, 1024, 768 );
this.setResizable ( false );
this.setName ( "POS" );
this.setUndecorated ( true );

this.setDefaultCloseOperation(javax.swing.JFrame.EXIT_ON_CLOSE);
this.setContentPane( getJContentPane ( ) );
this.setVisible ( true );
}

In my main method I got:

JFrame frame = new MainView ( ControllerObject );

And now I need something like a switch around new MainView
switch ( ControllerObject.getView )
{
case "ManufacturerView":
JFrame frame = new ManufacturerView ( .. );
break;

case "ArticleView":
..

default:
MainView ..
}

So now, how can I "run" the main method again after a click on a
button and load the correct view?

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Andrew Thompson - 17 Nov 2004 19:08 GMT

> I need no Frame around my Application.

Use a JWindow.

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Bastian Hammer - 17 Nov 2004 22:01 GMT

>> I need no Frame around my Application.
>
>Use a JWindow.

They are both a subclass of java.awt.Container, so why doesn´t it
work, if I use JFrame?

Reply to this Message

Andrew Thompson - 18 Nov 2004 00:19 GMT

>>> I need no Frame around my Application.
>>
>>Use a JWindow.
>
> They are both a subclass of java.awt.Container, so why doesn´t it
> work, if I use JFrame?

OK. Now that I have read back through this thread to (try and)
understand your question. I'll put it this way.

// make MainView a JPanel
class MainView extends JPanel

// so these three are also panels
class DefaultView extends MainView
class ManufacturerView extends MainView
class ArticlelView extends MainView

public staic void main() {
JFrame f = new JFrame();
f.getContentPane().setLayout( new CardLayout() );

....
f.getContentPane().add( "Mainview", new MainView() );
f.getContentPane().add( "DefaultView", new DefaultView() );
....
}

Now, if that does not sort your problem, you are going to need to

a) Be more precise. "it doesn't work" is a comment more likely to
get the response "flog it with a whip, it may just be lazy" than
any useful suggestions.

b) Post a *complete* short code example to give us a better feel
for what you're doing and perhaps what you are trying to achieve.
<http://www.physci.org/codes/sscce.jsp>

HTH

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Bastian Hammer - 19 Nov 2004 17:14 GMT

>public staic void main() {
> JFrame f = new JFrame();
[quoted text clipped - 5 lines]
> ....
>}

How can I access the different Views?

I haven´t got Attributes for MainView, DefaultView, and so on in my
JFrame, so how can I show another View?
At the moment, only MainView gets displayed.

And wehere and what should I assign witch object, to provide, that the
user gets another view, when he clicks on a button?

Buttons are always a field of a view:

public class ManufacturerView extends MainView
{

    private JButton    jButtonM1    = null;
    private JButton    jButtonM2    = null;
    ...
}

Should JFrame be assigned to MainView´s constructor?

Hope you can answer my question, or do you need more code?

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Andrew Thompson - 20 Nov 2004 01:00 GMT

>> f.getContentPane().setLayout( new CardLayout() );

> How can I access the different Views?

Questions like these are often answered by consulting the documentation.
<http://java.sun.com/j2se/1.5.0/docs/api/java/awt/CardLayout.html>

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Bastian Hammer - 20 Nov 2004 09:31 GMT

>> How can I access the different Views?
>
>Questions like these are often answered by consulting the documentation.
><http://java.sun.com/j2se/1.5.0/docs/api/java/awt/CardLayout.html>

I´ve read the documentation, an if I my CardLayout would be an
attribute of frame, it would be no problem to sey:

frame.ACardLayout.show ( "MainView" );

But I´ve got an anonym class with your example:

JFrame f = new JFrame();
f.getContentPane().setLayout( new CardLayout() );

and so, I can´t access the CardLayout.

There for I´m asking. :(

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Andrew Thompson - 20 Nov 2004 18:11 GMT

> But I´ve got an anonym ..

What's an anonym?

>..class with your example:
>
> JFrame f = new JFrame();

CardLayout cl = new CardLayout();

> f.getContentPane().setLayout( new CardLayout() );

f.getContentPane().setLayout( cl );

> and so, I can´t access the CardLayout.

cl.show.....

> There for I´m asking. :(

Keep a reference to it, see above. And if you cannot figure
it from there, naybe you'd better post to c.l.j.help.