- From: Robert O'Callahan <robert@ocallahan.org>
- Date: Thu, 12 Sep 2013 00:17:31 -0700
- To: Ian Hickson <ian@hixie.ch>
- Cc: Rik Cabanier <cabanier@gmail.com>, Dean Jackson <dino@apple.com>, Stephen White <senorblanco@chromium.org>, WHAT Working Group <whatwg@whatwg.org>
On Wed, Sep 11, 2013 at 11:24 AM, Ian Hickson <ian@hixie.ch> wrote: > On Wed, 11 Sep 2013, Robert O'Callahan wrote: > > Pinch-zoom is hard because we don't want to trigger reflows or other > > expensive behavior on pinch-zoom. I'd leave pinch-zoom out of it for > > now. > > Unless I'm missing something fundamental, changing the pixel density > doesn't cause a layout, it's changing the width that causes a layout. > Changing pixel density does cause a layout in Gecko. For example we round CSS border widths to a whole number of device pixels. (This ensures that when page zoom is applied, all borders with the same specified width are rendered with the same visual width.) On some platforms (Windows), changing pixel density affects text hinting which affects text layout. Rob -- Jtehsauts tshaei dS,o n" Wohfy Mdaon yhoaus eanuttehrotraiitny eovni le atrhtohu gthot sf oirng iyvoeu rs ihnesa.r"t sS?o Whhei csha iids teoa stiheer :p atroa lsyazye,d 'mYaonu,r "sGients uapr,e tfaokreg iyvoeunr, 'm aotr atnod sgaoy ,h o'mGee.t" uTph eann dt hwea lmka'n? gBoutt uIp waanndt wyeonut thoo mken.o w * *
Received on Thursday, 12 September 2013 07:18:00 UTC