> On Nov 5, 2016, at 6:09 AM, Geert Janssens <geert.gnuc...@kobaltwit.be> wrote: > > On Friday 04 November 2016 08:08:46 John Ralls wrote: > > > On Nov 3, 2016, at 8:39 PM, Amin Aghabeiki > > > <amin.aghabe...@gmail.com <mailto:amin.aghabe...@gmail.com>> wrote: > > > > > > Hi John > > > > > > I plane to change check box for calendar to combo box but its really > > > complicated there is any guide to add combo box in preference? > > Which check box are you referring to here ? > > > > Amin, > > > > No, I've never worked with the preferences dialog. Perhaps Geert can > > offer some help. > > > > Regards, > > John Ralls > > Hmm, it's been a while. Let's see what I remember... > > I assume you want to add a combobox in which the user can select the calendar > widget to use (Gregorian vs Jalali). > > There are several examples you can follow in the preferences already. The > date-format combobox is probably a good start. > > First you should define your combobox in the glade interface file > (src/gnome-utils/gtkbuilder/dialog-preferences.glade). Note the name needs a > particular format, which I'll get back to later. > > Each combobox needs a model, which you can also define in the same glade > file. For the date-format combobox this is a gtkliststore with the name > "date-formats". You'll need to define one similar for your combobox. > > Next, all settings you see in the preferences dialog are stored in gsettings. > Gsettings uses xml configuration files to define its settings. You'll need to > create the schema for your specific preference. The schema are stored in > gsettings subdirectories in various places of the code. The other date-time > related settings are defined in > src/gnome/gsettings/org.gnucash.gschema.xml.in.in > Again you can follow the example of the date-format preference. You will need > to add a key to the general schema for your preference. It will store an > integer value which is the selected line number in the combobox' liststore > (though 0-based). This sounds more complicated than it is really. If you > offer the user two options in your combobox, like this: > Gregorian calendar > Jalali calendar > and the user selects "Jalali calendar", the value to store in the preference > will be 1. Otherwise it will be 0. Note that I believe 0 should be the > default to avoid unexpected changes to existing users. > > And now for a crucial part: the name of your combobox in the glade file > should be the gsettings path of your preference prefixed with "pref/". For > the date-format preference for example this becomes: > pref/general/date-format > The combobox called that way will be tied automatically to the date-format > gsettings preference in the general section in gsettings. This part is > crucial. If the name of the widget is not correctly matched to the gsettings > key, your preference will not work. > > Lastly, due to the way gtkbuilder works, you'll have to explicitly tell > gnucash to load the liststore you have defined for your combobox. It will > load the combobox automatically, but not the liststore. This needs one more > line in src/gnome-utils/dialog-preferences.c around line 1084. > > After all that is done, your preference should just work. > > For readability you should add a #define for the key of your preference in > your own code, starting with "GNC_PREF_" and use that in combination with > GNC_PREFS_GROUP_GENERAL in your calls to gnc_prefs_get_int to query the value > of the new preference. > > Finally, you may want to listen for changes in your new preference in order > to update date/time widgets on open registers, report-option dialogs and > anywhere else you are offering the jalali calendar as alternative. You can > register callbacks to your preference via "gnc_prefs_register_cb" > > Is that sufficient to get you going ?
That would be an excellent wiki article... Regards, John Ralls _______________________________________________ gnucash-devel mailing list gnucash-devel@gnucash.org https://lists.gnucash.org/mailman/listinfo/gnucash-devel
