Am 06.10.2014 um 22:05 schrieb Marcelo Galvão Póvoa <marspeoples...@gmail.com>:
> On Sun, Oct 5, 2014 at 4:29 PM, Stephan Witt <st.w...@gmx.net> wrote: >> Am 02.10.2014 um 13:14 schrieb Stephan Witt <st.w...@gmx.net>: >> >>> Am 18.07.2014 um 10:39 schrieb Stephan Witt <st.w...@gmx.net>: >>> >>> I gave it a try to make some progress regarding the HiDPI stuff. >>> >>> First I've decided to split the task. I'd postpone the image scaling >>> issues. >>> Not only because of the dynamic nature of the preview rendering. It's a >>> slightly >>> more complex thing in general - we need to provide multiple image/icon sets >>> for >>> different pixel ratios, IMHO. >>> >>> My work is based on the first patch from Marcelo. I dropped the use of the >>> global >>> LyXRC member variable and made an alternate solution without it. >>> >>> See the attached patch. In principle it works. There is an issue with >>> scrolling. >>> The vertical scroll bar on a Mac is not visible all the time. Only while >>> scrolling >>> it is drawn and the content of the region under at the left side of the >>> main text >>> area is a duplicate of the middle of the text area on the stop of the >>> scroll operation. >>> See the attached screen shot. >>> >>> Stephan >>> >>> <0003-Add-basic-qt5-HiDPI-rendering-support.patch> >>> <Bildschirmfoto 2014-10-02 um 13.04.08.png> >> >> Now I have an improved patch without the scrolling issue. I'd like to commit >> it. >> Are there any thoughts about it? >> >> Stephan >> > > I tested your patch a little and I found some of the quirks I've been > having when I worked with this: > > - Redrawing the cursor sometimes causes some drawing errors around > characters. If I hold left/right arrow key to move the cursor across > text, I get something like the attached screenshot. As I mentioned, my > patch avoids partial viewport updates to workaround this, but it is > not a decent solution. Sorry, I cannot reproduce your problem. Or I do not understand it. You're talking about text navigation with cursor up/down, right? What's the partial viewport update you're talking about? Stephan > - Instant Preview of math formulas is not rendered in HiDPI. My patch > does this but has an ugly dependency on LyxRC. > - Dynamically changing window DPI (i.e, moving it between different > screens) makes the text blurry. I haven't tested this much, but maybe > it is related to some unflushed drawing cache? > > Marcelo > <cursor.png>
