Re: GtkCanvas requirements?

[Sven Herzberg <herzi gnome-de org>]

Carlos Garnacho wrote:
> Hello!,
>
> On Fri, 2007-04-20 at 17:11 +0200, Sven Herzberg wrote:
>   
>> Marco Pesenti Gritti wrote:
>>     
>>> There is something which bothers me though. Support for some units,
>>> points for example, would require floating points measures. And I
>>> suspect we don't want to do layout in floating point (instability
>>> issues). Mozilla converts css units in twips (an arbitrary integer
>>> unit, 1/20 of a point). That's a way to go about it I guess, though it
>>> requires conversions it in the canvas items. Better ideas?
>>>       
>> This is a very important aspect, right. Especially with the upcoming
>> *resolution independence* in MacOS X, people will start requesting this
>> feature in GTK+ as well. So we should really add resolution independence
>> to the feature list. This would at least satisfy the request for
>> increasing widget spacing if the resolution increases (so we can have
>> something like "1mm" between widgets).
>>     
>
> Sadly, I see a some problems here:
>
> 1) We don't control the hardware our software is running on.
>   

So, where's this a problem?

> 2) Broken X servers reporting bad dpi values, relying just on
> modern/non-broken servers doesn't look very attractive either...
>   

There are also broken flatpanels that report broken sizes. But this is
not a big deal if the user has got an easy way of specifying the correct
resolution.

> 3) I bet there's still lots of people with 800x600 (or worse) screens
>   

So what? The resolution independence will improve the situation for
them, because 1mm will be less pixels on the same display with 800x600
(compared to 1024x768).

Regards,
  Sven