Troubles with wxOgre

[azmeuk]

Hello world
I've got troubles with wxOgre for OGRE v1.4, I'm running Ubuntu 7.10 and I've compiled this code. (Including the code of the note for Ubuntu users).
To make it compile properly I had to remplace

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#ifdef __WXGTK__
#include <gdk/gdk.h>
#include <gtk/gtk.h> // just this should suffice as it should include gdk.h itself
#endif

by

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#ifdef __WXGTK__
#include <gdk/gdkx.h>
#include <gtk/gtk.h> // just this should suffice as it should include gdk.h itself
#include <wx/gtk/win_gtk.h>
#include <gdk/gdkx.h>
#include <GL/glx.h>
#endif

(See here.)
My problem is that the program can't run : the core dump when I try to launch the program.
You can find all the files I used here (and the Ogre.log): http://ramoloss.azmeuk.fr/public/Ogre/ .
Any idea ?
Thanks you for your help

[azmeuk]

If it can helps you, I found that it is the following line which makes the program crash.

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gtk_widget_realize( widget );

(in the createOgreRenderWindow function)

[sinbad]

I have to admit to never using the GTK route in wxWidgets before. If you remove the part of your code that binds an Ogre renderwindow to your wxWindow, does it work then? Just trying to identify whether this is specific to the Ogre window binding or if it's more fundamental.

[azmeuk]

I found that if I comment the lines

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mRenderWindow->resize( width, height );
mRenderWindow->windowMovedOrResized();

in the wxOgre::OnSize function, the program runs but there is no Ogre widget displayed. (But if I uncomment one of the two lines, the program crashes)

(or maybe it's the grey square on the top left corner of the window)

[sinbad]

yeah, you'll need a way to sync up the sizes of the wx window / widget and the Ogre render window - listening in to a size event usually does it, it does in wx and Qt on Windows anyway. Maybe there's an init issue here, have you tried deferring the calls to those functions until sometime much later, when you know the window system is fully up and running? Maybe guard it with a boolean you set much later or something, see if it survives then. My experience is that sometimes window systems take a little while to 'bed down' if they have derived metrics, and sometimes you can even end up with zero or even negative dimensions passed in to functions like this that you have to filter out.

[azmeuk]

You were right, it seems that the tip of using a boolean works.
What I've done
* Declaration of a boolean member mIsInitialized in wxOgre.h
* mIsInitialised is set to false at the begin of the wxOgre constructor and false at the end.
* For each method related to a wxwidget event, insertion of :

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if(mIsInitialized){...}

Now the program runs and I've got a blank view port:

Thank you, I update the wiki...

In fast I spoke too quickly. The ogre widget should have a title, like the others...