Re: Progress bar colours
- From: Yann LEYDIER <yann leydier info>
- To: Thomas Harty <t harty1 physics ox ac uk>
- Cc: "gtkmm-list gnome org" <gtkmm-list gnome org>
- Subject: Re: Progress bar colours
- Date: Sat, 27 Aug 2011 14:00:10 +0200
As far as I know this is the work of the engine and I know no way to
access its routines…
However, if you are familiar with the internal principles of Gtk, you
might be able to derivate the ProgressBar class and overload the method
that redraws the widget, but this is beyond my knowledge.
yann
On 27/08/11 13:55, Thomas Harty wrote:
Thank you for your reply. Can't the programme just change the relevant aspects of the theme, to change the way the progress bar is drawn under certain circumstances?
Tom
________________________________________
From: gtkmm-list-bounces gnome org [gtkmm-list-bounces gnome org] on behalf of Yann LEYDIER [yann leydier info]
Sent: 27 August 2011 12:33
To: gtkmm-list gnome org
Subject: Re: Progress bar colours
Hi !
Depending on your Gtk theme, progress bars can be animated pixbufs, so I
doubt you can change the color programmatically.
If I had to do this, I would create a custom widget containing a drawing
area…
yann
On 27/08/11 13:28, Thomas Harty wrote:
Hi,
I want to use a progress bar to display temperatures and it'd be very
useful to be able to make bar change colour to indicate any problems.
I've done some reading and the best references (e.g.
http://www.mail-archive.com/gtk-list gnome org/msg13767.html and
http://markmail.org/message/zirxleljlithtiel) I could find suggest that
it should be possible to change the colour of the bar using
override_background_color with the state flag PRELIGHT and to change the
color of the trough using override_background_color with the state flag
NORMAL. However, when I do this, I find that the
override_background_color with prelight does nothing and with the normal
flag, it changes the colour of both the slider and the trough.
Some of the comments I've seen make it seem as thought this should be
done using style files, but I couldn't find anything explaining how.
Any light that anyone could throw on this would be appreciated.
Tom
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