Touchpad tapping doesn't work in OpenGL canvas

[Jeff Young]

For instance, if you move an object using a touchpad, you have to click to drop it; tapping doesn't work. Tapping works fine on the Legacy Canvas.

Application: kicad
Version: (2017-12-06 revision ee56e21)-master, release build
Libraries:
    wxWidgets 3.0.2
    libcurl/7.54.0 LibreSSL/2.0.20 zlib/1.2.11 nghttp2/1.24.0
Platform: Mac OS X (Darwin 17.2.0 x86_64), 64 bit, Little endian, wxMac
Build Info:
    wxWidgets: 3.0.2 (UTF-8,STL containers,compatible with 2.8)
    Boost: 1.61.0
    Curl: 7.43.0
    Compiler: Clang 7.3.0 with C++ ABI 1002

Build settings:
    USE_WX_GRAPHICS_CONTEXT=ON
    USE_WX_OVERLAY=ON
    KICAD_SCRIPTING=ON
    KICAD_SCRIPTING_MODULES=ON
    KICAD_SCRIPTING_WXPYTHON=ON
    KICAD_SCRIPTING_ACTION_MENU=ON
    BUILD_GITHUB_PLUGIN=ON
    KICAD_USE_OCE=ON
    KICAD_SPICE=ON

[Jeff Young (jeyjey)]

Patch attached.

[Jeff Young (jeyjey)]

Replaced diff-style patch with format-patch-style patch.

[Wayne Stambaugh (stambaughw)]

@Jeff, I merged your patch into the development branch. Thank you for your contribution to KiCad.

[KiCad Janitor (kicad-janitor)]

Fixed in revision 833534537d68b380eb823d744435e7f5cae6293a
https://git.launchpad.net/kicad/patch/?id=833534537d68b380eb823d744435e7f5cae6293a