Re: [gtk-list] Re: Set Label Text

[scherfa <scherfa fh-trier de>]

---Reply to mail from john@giorgio.hart.bbk.ac.uk about [gtk-list] Re: Set Label Text
But on a statusbar widget i cant change the style of the text!
Thanks for your help solong

> Andreas Scherf wrote:
>>void 
>>ndisplay_text( GtkWidget *label, gchar *text, guint sec )
>>{
>>   char *tmpstring;
>>
>>   gtk_label_get( GTK_LABEL( label ), &tmpstring );
>>   gtk_label_set( GTK_LABEL( label ), text );
>>   gtk_widget_show( label );
>>
>>   sleep( sec );
>>
>>   gtk_label_set_text( GTK_LABEL( label ), tmpstring );
>>}
> 
> Hi Andreas, the problem is that the old string is being freed when the new
> string is set. You want to save a copy of it somewhere. For example:
> 
> void 
> ndisplay_text( GtkWidget *label, gchar *text, guint sec )
> {
>     char *tmpstring;
>     char *save;
> 
>     gtk_label_get( GTK_LABEL( label ), &tmpstring );
>     save = g_strdup( tmpstring );
> 
>     gtk_label_set( GTK_LABEL( label ), text );
>     gtk_widget_show( label );
> 
>     sleep( sec );
> 
>     gtk_label_set_text( GTK_LABEL( label ), save );
>     g_free( save );
> }
> 
> Another improvement is to get rid of the sleep() call. Your application will
> "freeze" while the sleep is running. A better way is to make a timer callback
> for sec seconds in the future to reset the message to the old value.
> 
> An even better way is to use the gtkstatusbar widget :). It does most of this
> stuff for you, you just need to add the timer callback. Happy hacking!
> 
> John
> --
> John Cupitt, john.cupitt@ng-london.org.uk, +44 (0)171 930 2108
> VASARI Lab, The National Gallery, Trafalgar Square, London, WC2N 5DN
> 
> -- 
> To unsubscribe: mail -s unsubscribe gtk-list-request@redhat.com < /dev/null
> 

---End reply
Andreas Scherf
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I EMail   : scherfa@fh-trier.de             I  
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