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Re: Version 0.8.2.2: Ruler updates 'smearing'

John,
I added the change to the SVN (and it will be in the next release), but I still have no idea about the problem with your theme. 

You need some cairo/theme/gtk sage, I think.

Regards,

Roland

John Smith wrote:

Roland:
I applied that change. It looked fine on dark background themes but on Aero-ion it was still as not right. 

Maybe it has more to do with the theme?

I did try an old GTK ruler widget with Aero-ion and it looked fine.

snafu

 > Date: Thu, 16 Oct 2008 21:30:26 +0200
 > From: box2OO6 eudoxos de
 > To: gtkdatabox-list gnome org
 > Subject: Re: Version 0.8.2.2: Ruler updates 'smearing'
 >
 > Hi John,
 >
 > nice photo of you, and yes, the application does look awful.
 >
 > Hmm. Since I am also not really themes expert (never cared about them,
 > my windows are still grey), I can only guess (and hope for more
 > knowledgeable readers of this mailing list):
 >
 > I quickly went through the code of the gtkdatabox_ruler. The only thing
 > that caught my eye is the following:
 >
 > gdk_draw_drawable (widget->window,
 > widget->style->black_gc,
 > ruler->priv->backing_pixmap,
 > ruler->priv->xsrc, ruler->priv->ysrc,
 > ruler->priv->xsrc, ruler->priv->ysrc, bs_width, bs_height);
 >
 > The black_gc probably needs to be replaced by
 > fg_gc[GTK_WIDGET_STATE(ruler)]. It does do no harm on my machine and
 > seems to be more consistent.
 >
 > Let me know, if that helped...
 >
 >
 > Regards,
 >
 > Roland
 >
 >
 >
 > John Smith wrote:
 > > Roland:
 > >
 > > Thanks for the speedy response!
 > >
 > > It turns out that the example program basics does the same thing on my
 > > target platform.
 > >
 > > In addition it appears that the problem is related to a GTK+ theme. I
> > happen to be using Aero-ion3.1 theme that has a black background - this > > is where the problem is apparent. However if I select another theme such 
 > > as Clearlooks with a light background the scale appears 'the way it
 > > should'.
 > >
 > > I've attached a photo of basics started when the Aero-ion3.1 theme is
 > > selected.
 > >
 > > Hope this helps...
 > >
 > > snafu
 > >
 > > > Date: Wed, 15 Oct 2008 20:38:09 +0200
 > > > From: box2OO6 eudoxos de
 > > > To: gtkdatabox-list gnome org
 > > > Subject: Re: Version 0.8.2.2: Ruler updates 'smearing'
 > > >
 > > > Hi John,
 > > >
 > > > since version 0.8.0.0, GtkDatabox comes with its own rulers.
 > > >
> > > The old gtk+ rulers have several problems, when ranges are very big or 
 > > > very small. The gtk+ developers are aware of this and will eventually
 > > > remove the current rulers from gtk+. The GtkDatabox rulers aim at
 > > > dealing better with extreme ranges while being at least as good with
 > > > 'normal' ranges.
 > > >
 > > > In addition, the GtkDatabox rulers support logarithmic scaling.
 > > >
> > > Your's is the first negative feedback regarding the new rulers, if I am 
 > > > not mistaken.
 > > >
> > > The only 'new' thing for you to that I can think of is: If you took care 
 > > > of placing the rulers yourself in your old code (instead of using
 > > > gtk_databox_create_box_with_scrollbars_and_rulers), you would need to
 > > > modify your code to use the new rulers. Since your code obviously
 > > > compiles, there is nothing 'new' I can think of. Sorry.
 > > >
 > > > Also, I have no experience with the ARM platform at all.
 > > >
 > > > So what can be done?
 > > >
> > > First of all, can you please try to zoom in and out with the examples, > > > which come with the library? This basically has the same effect for the 
 > > > rulers as auto-rescaling. Do you see the same effect there?
 > > >
> > > Second, can you reproduce the effect with a minimal program that you can 
 > > > share so that others can check whether the see the same effect?
 > > >
 > > > Third: The rulers are using cairo and I am certainly not the most
> > > knowledgeable person when it comes to cairo. So I suspect that there is 
 > > > something not done in the right way with cairo.
 > > >
 > > > Maybe some cairo expert can take a closer look?
 > > >
 > > >
 > > > Regards,
 > > >
 > > > Roland
 > > >
 > > >
 > > >
 > > >
 > > > John Smith wrote:
 > > > > Platform: ARM 920T (Cirrus Logic EP9315)
 > > > > Kernel 2.6.21.5
 > > > > GTK+ Version 2.10.14
 > > > > X-Windows: Kdrive
 > > > > Build System: Angstrom/OpenEmbedded
 > > > > gcc Version: 4.1.2
 > > > >
 > > > > Application: Updating plot with 'real-time' data and auto-scaling
 > > > > periodically.
 > > > >
> > > > Was using rev 0.6.0.0 without a problem. Updated to 0.8.2.2 and now 
 > > the
 > > > > rulers become all smeared and illegible.
 > > > >
 > > > > Is there something 'new' that has to be done or set with the new
 > > version?
 > > > >
 > > > > Thanks in advance,
 > > > >
 > > > > snafu
 > > > >
 > > > >
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