Selected DRC markers are always behind other DRC markers in Accelerated canvas

[Aleksandr Sh]

A selected DRC marker always appears behind other markers, thus, if there is a pile of them, the selected one cannot be seen.

This happens only in Accelerated mode. In Fallback it is ok.

Application: kicad
Version: (5.1.0-245-gdae41b746), release build
Libraries:
    wxWidgets 3.0.4
    libcurl/7.61.1 OpenSSL/1.1.1 (WinSSL) zlib/1.2.11 brotli/1.0.6 libidn2/2.0.5 libpsl/0.20.2 (+libidn2/2.0.5) nghttp2/1.34.0
Platform: Windows 8 (build 9200), 64-bit edition, 64 bit, Little endian, wxMSW
Build Info:
    wxWidgets: 3.0.4 (wchar_t,wx containers,compatible with 2.8)
    Boost: 1.68.0
    OpenCASCADE Community Edition: 6.9.1
    Curl: 7.61.1
    Compiler: GCC 8.2.0 with C++ ABI 1013

Build settings:
    USE_WX_GRAPHICS_CONTEXT=OFF
    USE_WX_OVERLAY=OFF
    KICAD_SCRIPTING=ON
    KICAD_SCRIPTING_MODULES=ON
    KICAD_SCRIPTING_PYTHON3=OFF
    KICAD_SCRIPTING_WXPYTHON=ON
    KICAD_SCRIPTING_WXPYTHON_PHOENIX=OFF
    KICAD_SCRIPTING_ACTION_MENU=ON
    BUILD_GITHUB_PLUGIN=ON
    KICAD_USE_OCE=ON
    KICAD_USE_OCC=OFF
    KICAD_SPICE=ON

[Novak Tamas (novak-7)]

IMO it is perfectly fine. You can see there are more arrows on top one another, and when clicking the bunch a "Clarify" window comes up (check my video). What would be the required behavior for you?

[Aleksandr Sh (dsa-t)]

On my screenshot, one arrow from the pile is selected. Through only small part of it is visible.
Compare that to a fallback mode attached here.

[Aleksandr Sh (dsa-t)]

On the video, you don't actually select any of the markers.

[Novak Tamas (novak-7)]

I think, you want the arrow to be slightly transparent, so color differences might bbe seen between a single arrow and two (or even more) overlapping arrows. Although it looks better at Legacy canves, for me it seems absolutely irrelevant, so I consider it as a wish only.

[Aleksandr Sh (dsa-t)]

Althrough it would be nice to distinguish contours of arrows in Accelerated mode, it is not a problem. The problem is that a selected arrow cannot be seen at all behind other arrows. If a selected arrow is in the middle of the pile, it is not visible at all! Look at the attached screenshot. There is an arrow selected. Can you spot it?

Looks like something is wrong with the draw order.

[Jon Evans (craftyjon)]

I agree there is a draw order issue here, the highlighted object is supposed to be pulled to the front.

[Jon Evans (craftyjon)]

Maybe the same issue as https://bugs.launchpad.net/kicad/+bug/1825036

[KiCad Janitor (kicad-janitor)]

Fixed in revision c438686deb0b25f3b1014e205b0936694c9d1a35
https://git.launchpad.net/kicad/patch/?id=c438686deb0b25f3b1014e205b0936694c9d1a35