Re: [PATCH] kconfig qconf: Add grey background for hidden options

From: Masahiro Yamada
Date: Fri Aug 07 2020 - 09:55:47 EST


On Wed, Jul 8, 2020 at 10:30 PM Maxime Chretien
<maxime.chretien@xxxxxxxxxxx> wrote:
>
> This is useful to see which configuration parameters can be edited
> or not when "Show All Options" is enabled.
>
> Signed-off-by: Maxime Chretien <maxime.chretien@xxxxxxxxxxx>
> ---
> scripts/kconfig/qconf.cc | 7 +++++++
> scripts/kconfig/qconf.h | 4 ++++
> 2 files changed, 11 insertions(+)


I like the idea, but
maybe this patch could be improved?

For example, in the following test code,
BAR is correctly painted grey when CONFIG_FOO=n,
but "my menu" is always white despite of
"depends on FOO"

----(test code)------

config FOO
bool "foo"

config BAR
bool "bar"
depends on FOO

menu "my menu"
depends on FOO

endmenu

-------(test code end)----







> diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
> index c0ac8f7b5f1a..be9ff4651da1 100644
> --- a/scripts/kconfig/qconf.cc
> +++ b/scripts/kconfig/qconf.cc
> @@ -208,6 +208,13 @@ void ConfigItem::updateMenu(void)
> }
> if (!sym_has_value(sym) && visible)
> prompt += " (NEW)";
> +
> + if(!visible) {
> + setBackground(promptColIdx, QBrush(QColor("#E0E0E0")));
> + } else {
> + setBackground(promptColIdx, QBrush());
> + }
> +


I think all the columns should be grey-grounded.
Please note you can click other columns to
toggle y/m/n.


How about something like this?



QBrush brush;

if (visible)
brush = QBrush()
else
brush = QBrush(QColor("#E0E0E0"));

setBackground(promptColIdx, brush);
setBackground(nameColIdx, brush);
setBackground(noColIdx, brush);
setBackground(modColIdx, brush);
setBackground(yesColIdx, brush);
setBackground(dataColIdx, brush);




> set_prompt:
> setText(promptColIdx, prompt);
> }
> diff --git a/scripts/kconfig/qconf.h b/scripts/kconfig/qconf.h
> index c879d79ce817..79e47e8c1ae7 100644
> --- a/scripts/kconfig/qconf.h
> +++ b/scripts/kconfig/qconf.h
> @@ -174,6 +174,10 @@ class ConfigItem : public QTreeWidgetItem {
> {
> return Parent::text(idx);
> }
> + void setBackground(colIdx idx, const QBrush& brush)
> + {
> + Parent::setBackground(idx, brush);
> + }

I do not understand why this wrapper is useful...


> void setPixmap(colIdx idx, const QIcon &icon)
> {
> Parent::setIcon(idx, icon);
> --
> 2.27.0
>


--
Best Regards
Masahiro Yamada