Re: Touchscreens and control scaling
Re: Touchscreens and control scaling
- Subject: Re: Touchscreens and control scaling
- From: Michael Ash <email@hidden>
- Date: Thu, 4 Jun 2009 13:01:58 -0400
On Thu, Jun 4, 2009 at 3:44 AM, Ben <email@hidden> wrote:
> Hi list,
>
> I've been sketching out an application and could do with a little advice on
> which cocoa-direction to take. It's a full-screen (kiosk) type app, running
> in a very controlled environment (not for wide release) but which would run
> on an external touchscreen monitor.
>
> While I can make buttons and labels big enough for fingers to poke, I'm
> concerned about controls like table headers and scrollers being large enough
> to make finger-size targets. I'm asking sooner rather than after testing the
> usability in case there are special considerations I should take before
> writing the first lines of code.
>
> The only options I can think of are:
>
> 1. Make a normal app and use quartz debug to scale *everything* up
> 2. Subclass and/or redraw any controls too small for finger taps
> 3. Shut up and try it out first
There is also option 3: set the scaling of your window's content view
(or some other convenient superview) to scale everything it contains
up.
This is capability has been around forever and so is probably better
supported than the quartz debug option.
Mike
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