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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 12:56:52 +0100
User-agent: Mutt/1.5.20 (2009-06-14)

Hi Max,

On Tue, Dec 04, 2012 at 11:37:49AM +0100, Gubinelli Massimiliano wrote:
>  yes, vector operations on the graphic device are automatically scaled at the 
> right size.

So you basically tell me that Qt should support this.

> As for bitmaps i think we just need to provide qt with high resolution ones.

Remind that we are already shrinking the black-and-white glyphs using
a shrinking factor ourselves.  Assume that we want to double the dpi resolution.
Then the idea would be to select a double shrinking factor (e.g. 10 instead of 
but still use an actual shrinking factor of 5 when shrinking our bitmaps.
Now convince Qt to display the twice as large pixmaps using a dpi which
is twice as large (thereby effectively shrinking once more by a factor of two).

Best wishes, --Joris

P.S.: I am also working on the support of non integer shrinking factors at the 
which will allow us to tackle the fully general case, if you manage to get the 
idea working.

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