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Date: Sat, 10 Oct 2009 00:17:42 +0800
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From: Bean <bean123ch@gmail.com>
To: The development of GRUB 2 <grub-devel@gnu.org>
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Subject: Re: [GITGRUB] New menu interface (implementation)
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On Fri, Oct 9, 2009 at 11:57 PM, Michal Suchanek <hramrach@centrum.cz> wrot=
e:
> I am suggesting an interface that allows style commands like
>
> style {
>
> (class=3D=3Dbutton).(text=3D=3DOK) { <style> }
>
> (class=3D=3Ddialog).<nothing here>.(class=3Dbutton) { <style> }
>
> (class=3D=3Dbuttonbar) { direction =3D right_to_left }
>
> (class=3D=3Dbutton) {
> =A0border_top =3D button_top
> =A0border_left =3D button_left
> =A0...
> }
>
> }
>
> for
>
> panel { class =3D dialog ; direction =3D top_to_bottom
> =A0panel {
> =A0 scroll =3D auto
> =A0 =A0text { Blah blah blah... }
> =A0}
> =A0panel { class =3D buttonbar ;
> =A0panel { class =3D button ; img { check.png } ;text { OK } ; command =
=3D
> <something> }
> =A0panel { class =3D button ; img { cross.png } ;text { Cancel } ;
> command =3D <something>}
> =A0}
> }
>
> The exact syntax and semantic of the selectors it to be defined.
>
> They may be imperative commands that are applied immediately to all
> widgets currently in existence or they may be stored in a style
> database that widgets consult each time they are drawn or some
> combination of the above (for example the style commands affect a
> style database in order of appearance but do not affect widgets
> directly).
>
> I guess the styles that appear in the main config (grub.cfg or loaded
> by loadcfg) should be added together so that scripts that generate
> different parts of the file can add style bits for their widgets.
>
> loadstyle command should reset all widget style properties to default
> (either widget default or the state after loading config) and then
> interpret the content of the file as if it was enclosed in style {}.
>
> When loadstyle is repeated the widgets should be reset again so that
> previous style cannot affect the newly loaded style.

Hi,

Perhaps it can be written like this:

class {
  button.text_OK { <style>}
  dialog.*button { <style> }
  buttonbar { direction =3D right_to_left }
  button {  border_top =3D button_top  border_left =3D button_left }
}

panel { class =3D dialog ; direction =3D top_to_bottom
  panel {
   scroll =3D auto
    text { Blah blah blah... }
  }
  panel { class =3D buttonbar ;
  panel { class =3D button ; img { check.png } ;text { class=3Dtext_OK } ;
command =3D<something> }
  panel { class =3D button ; img { cross.png } ;text { class=3Dtext_Cancel
} ; command =3D <something>}
  }
 }

--=20
Bean

gitgrub home: http://github.com/grub/grub/
my fork page: http://github.com/bean123/grub/