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Re: [Texmacs-dev] TeXmacs on retina screens


From: Joris van der Hoeven
Subject: Re: [Texmacs-dev] TeXmacs on retina screens
Date: Tue, 4 Dec 2012 14:13:18 +0100
User-agent: Mutt/1.5.20 (2009-06-14)

What about the icons by the way? Can you manage with the SVG sources,
or should I provide double resolution PNGs? --Joris


On Tue, Dec 04, 2012 at 11:37:49AM +0100, Gubinelli Massimiliano wrote:
> Joris,
>  yes, vector operations on the graphic device are automatically scaled at the 
> right size. As for bitmaps i think we just need to provide qt with high 
> resolution ones. If you explain to me how to have 144 dpi bitmaps for the 
> fonts should be able to convince Qt to show them properly. I've tried to 
> tweak texmacs to have double resolution bitmaps for tge glyphs but didn't 
> managed to obtain any result. 
> 
> best
> max
> 
> 
> On 4 déc. 2012, at 09:28, Joris van der Hoeven <address@hidden> wrote:
> 
> > Hi Max,
> > 
> > On Tue, Dec 04, 2012 at 12:07:35AM +0100, Gubinelli Massimiliano wrote:
> >> as far as I understand the qt port ready works fine under retina (checked 
> >> on 
> >> my machine) the real issue is that we have to provide bitmapped fonts at 
> >> double screen resolution and I was not able to understand how to do this. 
> >> the same should be done for icons. retina display is just a standard 
> >> display where resolution is more or less 144 dpi instead of 72 so if Jpris 
> >> help me in obtaining that texmacs produce screen fonts at that resolution 
> >> it should be possible to convince qt to put them onscreen in the right 
> >> way. 
> >> 
> >> I currently cannot use my retina laptop since texmacs does not work 
> >> properly so I'm very much interested in improving it in that direction.
> > 
> > Yes, Ingolf/Max are right in the sense that TeXmacs works "fine",
> > except that no advantage is taken out of the higher resolution.
> > 
> > In principle, TeXmacs is able to work with fonts at higher resolution,
> > and arbitrary size icons (by the way, I just committed the SVG versions
> > of the new set of TeXmacs icons, which one should use in this case).
> > So there is no real obstacle on our side.
> > 
> > It rather seems to on the Qt/X11 side that there is a problem,
> > because 1 pixel is no longer 1 pixel on a retina screen (some kind of
> > automatic zooming is applied).  It is not clear to me how to modify
> > the renderers so as to work on Retina screens.  Please investigate
> > the available APIs; as soon as I understand what should be done,
> > I can help to do the necessary things.
> > 
> > Best wishes, --Joris
> > 
> > _______________________________________________
> > Texmacs-dev mailing list
> > address@hidden
> > https://lists.gnu.org/mailman/listinfo/texmacs-dev
> 
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