Re: [Texmacs-dev] TeXmacs on retina screens

[Massimiliano Gubinelli]

HI Joris,
  I thought I have answered to your message but I do not find track of it, 
sorry.
As far as I understand units in the graphics device are logical one. On modern 
mac you always work with resolution independent devices and usual resolution is 
72 dpi while retina is 144dpi (more or less). To have the right font you have 
to provide me bitmpas glyphs rendered at double resolution then I should be 
able to do the rest and put them onscrenn with standard Qt commands. I've been 
able to tweak TeXmacs myself to do it. How do you change the resolution of the 
bitmapped glyphs?


Max




On 10 déc. 2012, at 10:26, Joris van der Hoeven wrote:

> Max???
> 
> On Wed, Dec 05, 2012 at 09:09:12PM +0100, Joris van der Hoeven wrote:
>> On Wed, Dec 05, 2012 at 07:49:04PM +0000, Alvaro Tejero Cantero wrote:
>>> I am soon going to be able to use a 12'5" laptop screen (which is also
>>> tactile) with resolution 1920x1080. One thing I didn't understand is why is
>>> the retina display so special and whether the fixes will work for
>>> 'intermediate' dpi settings. Also not very sure about what is meant by 72
>>> vs 144 dpis, because AFAIK there are almost no screens that are still
>>> displaying things at something as low as 72 dpi; see this:
>>> http://members.ping.de/~sven/dpi.html  (with the numbers I gave you we have
>>> ~176 DPI, the 13" retina has ~227 PPI).
>>> 
>>> I am probably just showcasing my ignorance, but I am concerned about
>>> support for non-mac high resolutions.
>> 
>> I am concerned too.  Max seems to say that Qt should be able to manage
>> Retina screens and non standard dpis.  Let us wait a few days and
>> see whether he can hack something together, maybe using the ideas
>> that I mentioned.
>> 
>> Best, --Joris
>> 
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