QGIS » QGIS Application

I am also highly interested in this.

I might not be able to help with the coding (I'm a web programmer) but can help with testing and creating hi-def ui icons (graphic designer for ~10yrs).

It looks like the backport that adds support for the hidpi pixmaps (required for nice looking icons) hasn't made it into the release branch yet. https://codereview.qt-project.org/#/c/54636/

On top of this, I can't get it to compile:

Undefined symbols for architecture x86_64:
  "qt_mac_get_scalefactor()", referenced from:
      QPixmap::grabWindow(long, int, int, int, int) in qpixmap_mac.o
      QToolButton::sizeHint() const in qtoolbutton.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

There is a pull request to add Qt5 support to QGIS. This is hopefully a set in the right direction for the high DPI icons: https://github.com/qgis/QGIS/pull/1676

I've been trying to get the map canvas to render at 2x DPI. It seems it should be possible, with some tweaks to qgsmapcanvas.cpp, qgsmapsettings.cpp and qgsmaptopixel.cpp. I managed to get the map to render "pretty" (i.e at the native DPI), but not in the right place. The scale, etc. becomes confused.

Perhaps someone with a better understanding of how the renderer works could weigh in (Martin or Jürgen?)?

Please reopen this issue. It is not a duplicate. #11337 is one of several issues related to overall compatibility with high resolution displays. For this to be resolved there also needs to be:

• Fixes to the map canvas so that it renders at the correct resolution
• Updates to icons so that they don't look pixelated/terrible
• Changes to the Info.plist file (as mentioned in the original post) for OS X

I'm concerned that this is still closed as it does not seem to be a duplicate of #11337.

Can you confirm Giovanni?

Joshua - when you made your first attempt at this, did you publish your changes anywhere? Is there a work in progress I could see?

Checking in to affirm interest & hopefully get some updates on the status of the project.

I hope you all are aware that the entire icon set for QGIS exists in SVG format already and there is no need to make new one for HDPI. You can find them here: https://github.com/qgis/QGIS/tree/master/images/themes/default

I am super interested in getting this going because I love my retina display but I hate the pixelated look QGIS now has. Now that I have switched to a higher resolution screen, QGIS effectively runs at a lower resolution(!) Go figure.

I am no code monkey but I'm learning python and happy to do anything I can to help. I don't want to wait for QGIS 3.0!

Alessandro Pasotti wrote:

It might be fixed with 061bdde, can somebody please test and confirm that it works on other screen sizes/operating systems?

Confirmed, the plugin description in the installer now displays fine.

Correction: The plugin description is ok on hidpi now but too big on regular screens.

Upvoting, I think it's hard for people not on 4k monitors or retina screens to appreciate just how much nicer it is to have everything crisp, and now this is one of the new apps I use that doesn't support the high resolution yet-

Chris - this bug tracker doesn't work on votes. See http://nyalldawson.net/2016/08/how-to-effectively-get-things-changed-in-qgis/ for a description on how things get prioritised.