From kde-perl  Tue Aug 01 23:13:22 2006
From: "Gary L. Greene Jr." <greeneg () phoenuxos ! com>
Date: Tue, 01 Aug 2006 23:13:22 +0000
To: kde-perl
Subject: Re: [Kde-perl] Why isn't this easy? implementing File->New
Message-Id: <200608011913.31664.greeneg () phoenuxos ! com>
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Joe, try creating the UI under qt designer and then run the resultant UI=20
through uic to generate the initial code for the interface. You'll find tha=
t=20
it makes the interface design a WHOLE lot simpler.

On Tuesday 01 August 2006 19:00, Joe Carlson wrote:
> I am liking PerlQt. At last, some real widgets that enable access to our
> Perl infrastructure. I'm a convert.
>
> Nonetheless, a problem. I'd like to implement a "File->New" menu action
> to open a new instance of the main window. In the c++ version, this is
> trivial:
>
> void MyView::processFileMenu(int option)
> {
>   if (option =3D=3D FILENEW) {
>     MyView *newWindow =3D new MyView();
>     newWindow->show();
>   }
> ...
>
> and that's it. the new window opens and I have an event loop responding
> to it.
>
> The corresponding perl version (inside MyView.pm which subclasses
> Qt::MainWindow):
>
> package MyView;
> ...
> use constant FILENEW=3D>1;
> ...
> sub processFileMenu
> {
>   my $option =3D shift;
>   if ($option =3D=3D FILENEW) {
>     my $newWindow =3D main::MyView();
>     $newWindow->show;
>   }
> ...
>
> is not as successful. I can see from the perl debugger that I am calling
> MyView::NEW and I am creating a new instance of the main window. But
> nothing shows up on the screen. The X event loop continues to process
> events from the original main window.
>
> Am I correct in assuming that I need to invoke the constructor from the
> namespace main::? I have been unable to find any other legitimate way to
> call it. Are there any alternatives for creating new instances of these
> classes directly?
>
> I looked at some of the trace output from the debugger, and I am left
> with the impression that there may be some processing that happens only
> the first time a module is autoloaded that prevents new instances from
> getting processed by the metaObject-izer.
>
> Anyone have a suggestion? I haven't stumbled over the solution yet.
>
> Thanks,
>
> Joe
>
>
>
> _______________________________________________
> Kde-perl mailing list
> Kde-perl@kde.org
> https://mail.kde.org/mailman/listinfo/kde-perl

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