[kaffe] kaffe and javax

2005-10-25 Thread Gianluca Moro 
Hi all,

running some demos on my kaffe port (kaffe 1.1.6, compiled
for mips machine, using Tiny-X), I testet successfully
some programs using awt, now, I have a demo using swing,
and the program fails as it do not find
javax/swing/JComponent.setDropTarget!

When I run it with:

LD_PRELOAD=/usr/X11R6/lib/libX11.so:/usr/lib/libpng.so:/usr/lib/libz.so:/usr/local/lib/libjpeg.so
 kaffe -Dkaffe.awt.nativelib=xawt
-Xbootclasspath/p:/home/AMDgiammy/kaffe-1.1.6/kaffeawt.jar JButtons

I get the following error:

java.lang.NoSuchMethodError:
javax/swing/JComponent.setDropTarget(Ljava/awt/dnd/DropTarget;)V
   at javax.swing.JComponent.init (JComponent.java:413)
   at javax.swing.JRootPane.init (JRootPane.java:499)
   at javax.swing.JFrame.createRootPane (JFrame.java:214)
   at javax.swing.JFrame.getRootPane (JFrame.java:199)
   at javax.swing.JFrame.frameInit (JFrame.java:151)
   at javax.swing.JFrame.init (JFrame.java:113)
   at JButtons.init (JButtons.java:15)
   at JButtons.main (JButtons.java:11)

It seems it do not find swing library: is it correct?
I have looked into rt.jar (compiled on host PC and the copied on
MIPS machine), and I see am entry

 -rw-rw-r-- 24643  20-Oct-2005  08:37:38 
javax/swing/JComponent.class

so I think the swing library is present.

Do I need to enable some flags when running the demo?
How can I tell where to find the library? 


thanks for the help
giammy

Here the example code:

import java.awt.*;
import javax.swing.*;

/** Simple example illustrating the use of JButton, especially
 *  the new constructors that permit you to add an image.
 *  1998-99 Marty Hall, http://www.apl.jhu.edu/~hall/java/
 */

public class JButtons extends JFrame {
  public static void main(String[] args) {
new JButtons();
  }

  public JButtons() {
super(Using JButton);
//WindowUtilities.setNativeLookAndFeel();
//addWindowListener(new ExitListener());
Container content = getContentPane();
content.setBackground(Color.white);
content.setLayout(new FlowLayout());
JButton button1 = new JButton(Java);
content.add(button1);
ImageIcon cup = new ImageIcon(images/cup.gif);
JButton button2 = new JButton(cup);
content.add(button2);
JButton button3 = new JButton(Java, cup);
content.add(button3);
JButton button4 = new JButton(Java, cup);
button4.setHorizontalTextPosition(SwingConstants.LEFT);
content.add(button4);
pack();
//setSize(500, 200);
setVisible(true);
  }
}


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Re: [kaffe] kaffe and javax

2005-10-25 Thread Gianluca Moro 
Hi, I made some tests ...

--- Gianluca Moro [EMAIL PROTECTED] ha scritto: 

 Hi all,
 
 running some demos on my kaffe port (kaffe 1.1.6, compiled
 for mips machine, using Tiny-X), I testet successfully
 some programs using awt, now, I have a demo using swing,
 and the program fails as it do not find
 javax/swing/JComponent.setDropTarget!
 
 When I run it with:


It seems to me that the requested function are implemented in
libraries/javalib/java/awt/

which is part of GNU classpath, while I'm using the implementation
from libraries/javalib/awt-implementations/kaffe/java/awt/,

So the question is: to have the supoprt for swing, do I need
to use GNU classpath: the problem is that, from what I understand,
if I remove 
--without-classpath-gtk-awt
from configuration, I will need GTK, which is not present
in my system: so to use swing, do I need to install GTK?

thanks
giammy

 

LD_PRELOAD=/usr/X11R6/lib/libX11.so:/usr/lib/libpng.so:/usr/lib/libz.so:/usr/local/lib/libjpeg.so
  kaffe -Dkaffe.awt.nativelib=xawt
 -Xbootclasspath/p:/home/AMDgiammy/kaffe-1.1.6/kaffeawt.jar JButtons
 
 I get the following error:
 
 java.lang.NoSuchMethodError:
 javax/swing/JComponent.setDropTarget(Ljava/awt/dnd/DropTarget;)V
at javax.swing.JComponent.init (JComponent.java:413)
at javax.swing.JRootPane.init (JRootPane.java:499)
at javax.swing.JFrame.createRootPane (JFrame.java:214)
at javax.swing.JFrame.getRootPane (JFrame.java:199)
at javax.swing.JFrame.frameInit (JFrame.java:151)
at javax.swing.JFrame.init (JFrame.java:113)
at JButtons.init (JButtons.java:15)
at JButtons.main (JButtons.java:11)
 
 It seems it do not find swing library: is it correct?
 I have looked into rt.jar (compiled on host PC and the copied on
 MIPS machine), and I see am entry
 
  -rw-rw-r-- 24643  20-Oct-2005  08:37:38 
 javax/swing/JComponent.class
 
 so I think the swing library is present.
 
 Do I need to enable some flags when running the demo?
 How can I tell where to find the library? 
 
 
 thanks for the help
 giammy
 
 Here the example code:
 
 import java.awt.*;
 import javax.swing.*;
 
 /** Simple example illustrating the use of JButton, especially
  *  the new constructors that permit you to add an image.
  *  1998-99 Marty Hall, http://www.apl.jhu.edu/~hall/java/
  */
 
 public class JButtons extends JFrame {
   public static void main(String[] args) {
 new JButtons();
   }
 
   public JButtons() {
 super(Using JButton);
 //WindowUtilities.setNativeLookAndFeel();
 //addWindowListener(new ExitListener());
 Container content = getContentPane();
 content.setBackground(Color.white);
 content.setLayout(new FlowLayout());
 JButton button1 = new JButton(Java);
 content.add(button1);
 ImageIcon cup = new ImageIcon(images/cup.gif);
 JButton button2 = new JButton(cup);
 content.add(button2);
 JButton button3 = new JButton(Java, cup);
 content.add(button3);
 JButton button4 = new JButton(Java, cup);
 button4.setHorizontalTextPosition(SwingConstants.LEFT);
 content.add(button4);
 pack();
 //setSize(500, 200);
 setVisible(true);
   }
 }
 
 
 --
 Gianluca Moro  http://groups.yahoo.com/group/embeddeditalia/
 ISCRIVITI alla Mailing List Italiana su LINUX EMBEDDED
 [EMAIL PROTECTED]   Visit http://ilpinguino.altervista.org/
 
 
   
 
   
   
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Re: [kaffe] kaffe and javax

2005-10-25 Thread Clemens Eisserer 
Hello,

 It seems to me that the requested function are implemented in
 libraries/javalib/java/awt/

 which is part of GNU classpath, while I'm using the implementation
 from libraries/javalib/awt-implementations/kaffe/java/awt/,

 So the question is: to have the supoprt for swing, do I need
 to use GNU classpath: the problem is that, from what I understand,
 if I remove
 --without-classpath-gtk-awt
 from configuration, I will need GTK, which is not present
 in my system: so to use swing, do I need to install GTK?

You're right, classpath's swing is only supported running on top of
Classpath's AWT implementation :-(
Hmm, could be interresting to try to push kaffe's X implemntation so
that it would be compatible again since its quite lightweight and
stable compared to classpaths GTK based AWT which for now still
appears a bit clumsy ;-)

There have been reports that the proprietary swing-version does work
on Kaffe's XAWT (search the mailing lists, there have been some posts
about this issue), although not the very last one but previous
releases.

Another thing I could recommend is using yet another lightweight
library, I would recommend LwVCL ( www.lwvcl.com ) which I used to
develop a quite complex rich-client applet and which should be much
more suited for your use. Using it you could also remove most of
kaffe's swing and awt (all the native widgets) classes.

lg Clemens

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Re: [kaffe] kaffe and javax

2005-10-25 Thread Dalibor Topic 
On Tue, Oct 25, 2005 at 10:54:44AM +, Clemens Eisserer wrote:
 Hello,
 
  It seems to me that the requested function are implemented in
  libraries/javalib/java/awt/
 
  which is part of GNU classpath, while I'm using the implementation
  from libraries/javalib/awt-implementations/kaffe/java/awt/,
 
  So the question is: to have the supoprt for swing, do I need
  to use GNU classpath: the problem is that, from what I understand,
  if I remove
  --without-classpath-gtk-awt
  from configuration, I will need GTK, which is not present
  in my system: so to use swing, do I need to install GTK?
 
 You're right, classpath's swing is only supported running on top of
 Classpath's AWT implementation :-(

Yes. It should be possible to a certain degree to replace Kaffe's
original AWT's classes by GNU Classpath's and to move some of the native
code into peers that could be plugged into GNU Classpath, but noone has
done that yet. Volunteers are most welcome.

 Hmm, could be interresting to try to push kaffe's X implemntation so
 that it would be compatible again since its quite lightweight and
 stable compared to classpaths GTK based AWT which for now still
 appears a bit clumsy ;-)

Well, since it uses Xlib, it's probably more lightweight that using a
wrapper around Xlib. On the other hand, chosing a lightweight GUI
toolkit written in Java up front may be an even better choice, since
both AWT and Swing are pretty big and feature rich.

 There have been reports that the proprietary swing-version does work
 on Kaffe's XAWT (search the mailing lists, there have been some posts
 about this issue), although not the very last one but previous
 releases.

Yes. It used to work last time I tested it a few years ago, but I'd
recommend using Free Software instead, to avoid falling into the Java
Trap :)

The only Sun Swing implementation that I managed to run on Kaffe's X11 
AWT implementation was the implementation from Swing 1.1.1 FCS, which
was before Java2, and that code has long passed into EOL state, and
isn't any longer supported by Sun. Whether relying on an unsupported
release of some proprietary software from 5+ years ago is a suitable
solution for a lot of problems, I'm not sure. I know I'd prefer to use
something else, and your suggestion to use LwVCL is a very good one.
There are also Thinlets, that may be more suitable for the mobile use,
than a full blown AWT or Swing GUI.

 Another thing I could recommend is using yet another lightweight
 library, I would recommend LwVCL ( www.lwvcl.com ) which I used to
 develop a quite complex rich-client applet and which should be much
 more suited for your use. Using it you could also remove most of
 kaffe's swing and awt (all the native widgets) classes.

Yep. Thanks for mentioning it!

cheers,
dalibor topic

 lg Clemens
 
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Re: [kaffe] kaffe and javax

2005-10-25 Thread [EMAIL PROTECTED] 
Hi there,

 You're right, classpath's swing is only supported running on top of
 Classpath's AWT implementation :-(

Just wondering... my tests show the latest release of JamVM looks far more 
stable running my simple
Swing apps than the latest Kaffe. Which AWT implementation would be built by 
the default kaffe
configure script?


[]s, Fernando Lozano



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Re: [kaffe] kaffe and javax

2005-10-25 Thread Dalibor Topic 
[EMAIL PROTECTED] wrote:
 Hi there,
 
 
You're right, classpath's swing is only supported running on top of
Classpath's AWT implementation :-(
 
 
 Just wondering... my tests show the latest release of JamVM looks far more 
 stable running my simple
 Swing apps than the latest Kaffe. Which AWT implementation would be built by 
 the default kaffe
 configure script?
 

GNU Classpath's Gtk+ peer implementation is the default.

cheers,
dalibor topic

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Re: [kaffe] kaffe and javax

2005-10-25 Thread [EMAIL PROTECTED] 
Hi Dalibor,


 You're right, classpath's swing is only supported running on top of
 Classpath's AWT implementation :-(
  
  Just wondering... my tests show the latest release of JamVM looks far more 
  stable running my
  simple Swing apps than the latest Kaffe. Which AWT implementation would be 
  built by the default
  kaffe configure script?
  
 
 GNU Classpath's Gtk+ peer implementation is the default.

Only that, right? But if I force the compilation of other AWT implementations, 
will the classpath
one still be the default, unless I use -D to use another one?

[]s, Fernando Lozano


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Re: [kaffe] kaffe and javax

2005-10-25 Thread Dalibor Topic 
On Tue, Oct 25, 2005 at 12:37:55PM -0200, [EMAIL PROTECTED] wrote:
 Hi Dalibor,
 
 
  You're right, classpath's swing is only supported running on top of
  Classpath's AWT implementation :-(
   
   Just wondering... my tests show the latest release of JamVM looks far 
   more stable running my
   simple Swing apps than the latest Kaffe. Which AWT implementation would 
   be built by the default
   kaffe configure script?
   
  
  GNU Classpath's Gtk+ peer implementation is the default.
 
 Only that, right? But if I force the compilation of other AWT 
 implementations, will the classpath
 one still be the default, unless I use -D to use another one?

Yes. The GNU Classpath Gtk+ AWT peer implementation is the default,
though if you compile other additional set of AWT peers, like GNU
Classpath's Qt4 peers, you can use -D to tell kaffe which set of peers
you want to use.

cheers,
dalibor topic

 
 []s, Fernando Lozano
 

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[kaffe] kaffe and javax

2005-10-25 Thread Clemens Eisserer 
What I think would be great if one of the two peers could be made
QT/GTK on reuquest, should  mean that they would use X11/cairo for all
the lightweight drawing-stuff and QT/GTK would only take action when a
native AWT peer is created.

Therefore it would be possible to share the same basic code for
X11/QT/Whatever peers and even building x11 alone would be possible.
The negative side effect would be that a simple win32 recompilation
would fail because the x11 stuff isn't abstracted anymore :-(

lg Clemens

Btw. there is a pure java-xlib implementation ;-)

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