[bt-devel] namespace problems

[David White]

On Mon, 2002-10-21 at 07:49, Nikolay Igotti wrote:
>  Sure, something like this:
> const QString& ResourseManager::getToolTip(QString& key) and call it like 
> this:
> ResourseManager::getToolTip("mainMenu::file::quit")

yes, this seems reasonable. Although, you could just have an extern
global std::map to do the job...

std::map<QString,QString> tooltips;

> 
>  BT is very C++ heavyweight (templates, STL) and add yet another C++ 
> feature where it's not needed isn't a good idea.

BibleTime is written in C++. What's wrong with it using the features of
the language it's written in? Namespaces or namespace-like features are
common in almost all modern programming languages (Perl, Python, C#,
Java, to name a few), and I don't see any problem using them. Even Sword
has gone toward using namespaces recently.

For truly advanced C++ features, which do not have good platform
support, such as partial specialization of templates, I can understand
not using them. Namespaces are a fairly basic feature.

-David.

> 
> 
>   Nikolay.
> 
> 
> > 
> > Joachim
> > 
> > >  Joachim, are you sure this namespace based approach is good way to do
> > > i18n and resources management? I feel it's not. Maybe resourse file
> > > +resouse manager would be better?
> > >
> > >  Nikolay.
> > >
> > > On Sat, 19 Oct 2002, Joachim Ansorg wrote:
> > > > David White, I think this eMail is especially for you because you know
> > > > the namespaces well.
> > > >
> > > > You pointed me into the direction to use namespaces for the treelike
> > > > structure I wanted.
> > > >
> > > > Now I have something like
> > > >
> > > > namespace CResMgr {
> > > >   inline const QString makeToolTip( const QString& text ) {
> > > >     return text;
> > > >   };
> > > >   inline const QString makeWhatsThis( const QString& title, const
> > > > QString& description )  {
> > > >     return
> > > > QString::fromLatin1("<center><B>%1</B></center><HR>%2").arg(title).arg(de
> > > >scription); };
> > > >
> > > >   namespace mainMenu { //Main menu
> > > >     namespace file { //Main menu->File
> > > >       namespace clearQueue {
> > > >         const QString tooltip     = makeToolTip( i18n("Clear the printing
> > > > queue") );
> > > >         const QString whatsthis   = makeWhatsThis( tooltip, i18n("Clear
> > > > the print queue of BibleTime. All items will be removed from the list and
> > > > the print button will be disabled.") );
> > > >         const QString icon        = QString::fromLatin1("queue");
> > > >         const KShortcut accel     = KShortcut();
> > > >         const char* actionName    = "fileClearQueue_action";
> > > >       }
> > > >       namespace print { //a standard action
> > > >         const QString tooltip     = makeToolTip( i18n("Open the
> > > > printerdialog") );
> > > >         const QString whatsthis   = makeWhatsThis( tooltip, i18n("Open
> > > > the printer dialog of BibleTime.  Here you can edit the print queue and
> > > > assign styles to the items.") );
> > > >       }
> > > >       namespace quit { //a standard action
> > > >         const QString tooltip     = makeToolTip( i18n("Close BibleTime")
> > > > ); const QString whatsthis   = makeWhatsThis( tooltip, i18n("Close
> > > > BibleTime and save the settings.") );
> > > >       }
> > > >     }
> > > > }
> > > > etc.
> > > >
> > > > But compiling BibleTime with this header included in two or more places I
> > > > get the following compiler warnings about multiple symbol definitions:
> > > >
> > > > ./frontend/searchdialog/libsearchdialog.a(csearchdialog.o)(.data+0x0):
> > > > multiple definition of `CResMgr::mainMenu::file::clearQueue::actionName'
> > > > bibletime_init.o(.data+0x0): first defined here
> > > > ./frontend/searchdialog/libsearchdialog.a(csearchdialog.o)(.data+0x4):
> > > > multiple definition of
> > > > `CResMgr::mainMenu::view::showMainIndex::actionName'
> > > > bibletime_init.o(.data+0x4): first defined here
> > > > ./frontend/searchdialog/libsearchdialog.a(csearchdialog.o)(.data+0x8):
> > > > multiple definition of `CResMgr::mainMenu::mainIndex::search::actionName'
> > > > bibletime_init.o(.data+0x8): first defined here
> > > > ./frontend/searchdialog/libsearchdialog.a(csearchdialog.o)(.data+0xc):
> > > > multiple definition of
> > > > `CResMgr::mainMenu::window::loadProfile::actionName'
> > > > bibletime_init.o(.data+0xc): first defined here
> > > >
> > > > How can I avoid these problems? I have no idea.
> > > > Thank you very much for any help!
> > 
> > 
>