white and black combobox.

[Luc Moulinier]

Hello !

I want to have a ttk::combobox with white foreground and black
background everywhere, and in whatever the widget state is.
According to ttk::style layout TCombobox, there are elements :
textarea, downarrow, field. So I tried to map the states bg and fg for
these elements but :
- the pulldown arrow itself stays black (so invisible on a black
background)
- the items in the pull-down listbox stay with default colors.

Are there some hidden elements (is that is called sub-layouts ?) that
should be mapped also ? Or am i missing something else ?
Here is my test code :

ttk::style configure wb.TCombobox -background black -foreground white
foreach e {"" ".textarea" ".field" ".downarrow"} {
ttk::style map wb.TCombobox$e \
-background [list active black disabled black readonly black] \
-foreground [list active white disabled white readonly white] \
-fieldbackground [list active black disabled black readonly
black] \
-fieldforeground [list active white disabled white readonly
white] \
-selectbackground [list active black disabled black readonly
black] \
-selectforeground [list active white disabled white readonly
white] \
-disabledbackground [list active black disabled black readonly
black] \
-disabledforeground [list active white disabled white readonly
white]
}

pack [ttk::combobox .c \
-style wb.TCombobox \
-state readonly \
-values [list aezrty qsdfgh poiuyt]]

Thanks for your help !!
Luc

[Emiliano]

On 2 dic, 14:05, Luc Moulinier <luc.moulin...@igbmc.fr> wrote:
> Hello !
>
> I want to have a ttk::combobox with white foreground and black
> background everywhere, and in whatever the widget state is.
> According to ttk::style layout TCombobox, there are elements :
> textarea, downarrow, field. So I tried to map the states bg and fg for
> these elements but :
> - the pulldown arrow itself stays black (so invisible on a black
> background)

Instrospect which options are supported by downarrow

% ttk::style element option downarrow
-background -relief -borderwidth -arrowcolor -arrowsize

Then configure the (obvious) option

% ttk::style configure wb.TCombobox -background black -foreground
white \
-arrowcolor white

The set of supported options is, however, theme dependant.

> - the items in the pull-down listbox stay with default colors.

The dropdown is a regular listbox inside an override-redirect
toplevel,
which are children of the combobox. The simplest way is to use the
option
database

% option add *TCombobox*Listbox.foreground white
% option add *TCombobox*Listbox.background black

You might want to configure selectforeground, selectbackground and
selectborderwidth too.

Regards
Emiliano