Re: [cdt-dev] Problems with setting options in a MBSCustomPage

[Subs <dmsubs@xxxxxxxxxxxxx>]

Wieant Nielander wrote:
> > I have developed a custom page (MBSCustomPage) that gets added to the C  
> > Project Wizard. I am collecting some additional information that I am  
> > then using to set options in the toolchain (compiler, linker etc). This  
> > is done in the CustomPage Runnable that is called. I apply my changes to  
> > the toolchain and then call:
> >     ManagedBuildManager.saveBuildInfo(project, true);
> > to save these options.
> >
> > When the project is built, I can see my options appear in the command  
> > line and the project builds correctly. However, if I close Eclipse and  
> > then reopen, my new settings have disappeared. I can confirm this by  
> > looking in the .cproject file - my changes are not there.
> >
> > So, it appears that my options are not being stored in the .cproject  
> > file even though they were there in the 'in memory' version.
> >
> > As an experiment, I added a button to the UI, whose action is to call:
> >     ManagedBuildManager.saveBuildInfo(project, true);
> > If I press this button after my project has build, I see that sometimes  
> > (but not every time), my settings ARE written to the .cproject.
> >
> > Any clues as to what I might be doing wrong?
>
> We have implemented our own property pages based on the CDT ones, and
> setting options through ManagedBuildManager.setOption() seems to work
> fine there, so I checked what is different from your approach and
> apparantly ManagedBuildManager.saveBuildInfo() is not called, but
> instead saving is done through CoreModel.getDefault().setProjectDescription()
>
> Below is an extraction of this approach, perhaps you can give it a try.
>
>   ICProjectDescriptionManager mngr = CoreModel.getDefault().getProjectDescriptionManager();
>   ICProjectDescription des = mngr.getProjectDescription(getProject(), true  /*writable description*/);
>   ICConfigurationDescription cfg = des.getActiveConfiguration();
>   IConfiguration config = ManagedBuildManager.getConfigurationForDescription(cfg);
>
> <your> ManagedBuildManager.SetOption(config,config.GetToolChain()...)
>        ...
>
>   CoreModel.getDefault().setProjectDescription(getProject(),des);
>
> Regards,
>   Wieant
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Hi Wieant,

Thanks for the help. I have just converted everything to use your 
suggestion, and unfortunately it makes no difference.

One thing I didn't mention was that (in a different, independent plugin) 
I am also storing my own information in the .cproject file, using this code:

ICStorageElement storage = des.getStorage(getPluginID(), false);
if (storage == null)
	storage = des.getStorage(getPluginID(), true);
settings = storage.createChild(sPROJECT_STORAGE);
settings.setValue(value);
manager.setProjectDescription(project, des, true, null);

To check, I disabled my storage, and again it made no difference.

I'm completely stumped!

--
Subs