[Kde-java] Help

[Paul Sprakes]

> > >void MainWindow::fileOpen()
> > >{
> > >     KURL filename = KFileDialog::getOpenURL( QString::null, "*", this
> > > ); QString msg = QString( i18n("Now this app should open the url %1 .")
> > > ).arg(filename.url());
> > >     KMessageBox::information( 0, msg, i18n( "Information" ),
> > >                 "fileOpenInformationDialog" );
> > >}
> > >
> > >and here is my java version
> > >
> > >
> > >public void fileOpen() {
> > >         KURL filename = KFileDialog.getOpenURL(null, "*", this, null);
> > >         String msg = i18n("Now this app should open the url %1 . ") +
> > >filename.url();
> > >         KMessageBox.information(null, i18n("Information"),
> > >"fileOpenInformationDialog");
> > >}


I've found out that both the KFileDialog.getOpenURL() and 
KFileDialog.getSaveURL() methods will crash the application if the first 
parameter (startDir) is null. When called with a String (i.e. 
QDir.currentDirPath()) the application will not crash.

The KFileDialog API reference has this to say about the startDir param:

"QString::null to start in the current working directory, or the last 
directory where a file has been selected. "

So it should be able to take a null argument.

I have tested this with both the blackdown 1.4.1 JDK and Sun's 1.4.2 JDK. 
Using Mandrake 9.1

Another strange occurence is with the blackdown JDK. My app was originally a 
single class which extended KMainWindow. It also had it's own main() method 
which created the KApllication and my custom KMainWindow. With the blackdown 
JDK the application would terminate with no error/warning info on the 
constructor call of my custom KMainWindow. However, if I extract the main() 
method (along with the static initializer) into it's own class (Main.java) it 
will then run OK. This problem doesn't occur with Sun's JDK.

Cheers, Paul.

P.S. When I've finished the KDE tutorial I'm planning on writing a kde-java 
version of it, which hopefully will lower the point of entry for kde-java 
programming and possibly kde c++ too. Would it be possibly for this to be 
uploaded to the kdebindings web site? I would obviously maintain it for 
future releases.