opencv · skvark · Mar 22, 2020 · Feb 14, 2020 · Feb 14, 2020
diff --git a/.gitignore b/.gitignore
@@ -67,3 +67,4 @@ target/
 # Build temporary files
 /contrib.enabled
 /cv_version.py
+_skbuild/
diff --git a/cv2/__init__.py b/cv2/__init__.py
@@ -1,8 +1,15 @@
 import importlib
+import os
+import sys

 from .cv2 import *
 from .data import *

 # wildcard import above does not import "private" variables like __version__
 # this makes them available
 globals().update(importlib.import_module('cv2.cv2').__dict__)
+
+if sys.platform == 'darwin':
+    os.environ['QT_QPA_PLATFORM_PLUGIN_PATH'] = os.path.join(
+        os.path.dirname(os.path.abspath(__file__)), 'qt', 'plugins'
+    )
diff --git a/patches/patchQtPlugins b/patches/patchQtPlugins
@@ -0,0 +1,12 @@
+diff --git a/opencv/CMakeLists.txt b/opencv/CMakeLists.txt
+index 8ccad4d03a..0d5e2a79e9 100644
+--- a/opencv/CMakeLists.txt
+++ b/opencv/CMakeLists.txt
+@@ -1164,6 +1164,7 @@ if(WITH_QT OR HAVE_QT)
+   if(HAVE_QT5)
+     status("    QT:" "YES (ver ${Qt5Core_VERSION_STRING})")
+     status("      QT OpenGL support:" HAVE_QT_OPENGL THEN "YES (${Qt5OpenGL_LIBRARIES} ${Qt5OpenGL_VERSION_STRING})" ELSE NO)
+    install(DIRECTORY ${Qt5_DIR}/../../../plugins DESTINATION lib/qt)
+   elseif(HAVE_QT)
+     status("    QT:" "YES (ver ${QT_VERSION_MAJOR}.${QT_VERSION_MINOR}.${QT_VERSION_PATCH} ${QT_EDITION})")
+     status("      QT OpenGL support:" HAVE_QT_OPENGL THEN "YES (${QT_QTOPENGL_LIBRARY})" ELSE NO)
diff --git a/setup.py b/setup.py
@@ -128,6 +128,7 @@ def main():

    if sys.platform == 'darwin' and not build_headless:
        cmake_args.append("-DWITH_QT=5")
+        rearrange_cmake_output_data['cv2.qt.plugins.platforms'] = [(r'lib/qt/plugins/platforms/libqcocoa\.dylib')]

    if build_headless:
        # it seems that cocoa cannot be disabled so on macOS the package is not truly headless
@@ -144,6 +145,7 @@ def main():
                                                # https://github.com/skvark/opencv-python/issues/21
        cmake_args.append("-DCMAKE_CXX_FLAGS=-stdlib=libc++")
        cmake_args.append("-DCMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.9")
+        subprocess.check_call("patch -p1 < patches/patchQtPlugins", shell=True)

    if sys.platform.startswith('linux'):
        cmake_args.append("-DWITH_IPP=OFF")   # tests fail with IPP compiled with