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# ----------------------------------------------------------------------------
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# Detect 3rd-party GUI libraries
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# ----------------------------------------------------------------------------
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#--- Win32 UI ---
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ocv_clear_vars(HAVE_WIN32UI)
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if(WITH_WIN32UI)
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try_compile(HAVE_WIN32UI
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"${OpenCV_BINARY_DIR}"
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"${OpenCV_SOURCE_DIR}/cmake/checks/win32uitest.cpp"
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CMAKE_FLAGS "-DLINK_LIBRARIES:STRING=user32;gdi32")
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endif()
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# --- QT4 ---
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ocv_clear_vars(HAVE_QT HAVE_QT5)
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if(WITH_QT)
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if(NOT WITH_QT EQUAL 4)
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find_package(Qt5Core)
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find_package(Qt5Gui)
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find_package(Qt5Widgets)
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find_package(Qt5Test)
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find_package(Qt5Concurrent)
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if(Qt5Core_FOUND AND Qt5Gui_FOUND AND Qt5Widgets_FOUND AND Qt5Test_FOUND AND Qt5Concurrent_FOUND)
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set(HAVE_QT5 ON)
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set(HAVE_QT ON)
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find_package(Qt5OpenGL)
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if(Qt5OpenGL_FOUND)
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set(QT_QTOPENGL_FOUND ON)
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endif()
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endif()
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endif()
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if(NOT HAVE_QT)
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find_package(Qt4 REQUIRED QtCore QtGui QtTest)
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if(QT4_FOUND)
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set(HAVE_QT TRUE)
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endif()
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endif()
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endif()
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# --- GTK ---
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ocv_clear_vars(HAVE_GTK HAVE_GTK3 HAVE_GTHREAD HAVE_GTKGLEXT)
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if(WITH_GTK AND NOT HAVE_QT)
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if(NOT WITH_GTK_2_X)
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CHECK_MODULE(gtk+-3.0 HAVE_GTK3 HIGHGUI)
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if(HAVE_GTK3)
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set(HAVE_GTK TRUE)
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endif()
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endif()
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if(NOT HAVE_GTK)
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CHECK_MODULE(gtk+-2.0 HAVE_GTK HIGHGUI)
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if(HAVE_GTK AND (ALIASOF_gtk+-2.0_VERSION VERSION_LESS MIN_VER_GTK))
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message (FATAL_ERROR "GTK support requires a minimum version of ${MIN_VER_GTK} (${ALIASOF_gtk+-2.0_VERSION} found)")
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set(HAVE_GTK FALSE)
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endif()
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endif()
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CHECK_MODULE(gthread-2.0 HAVE_GTHREAD HIGHGUI)
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if(HAVE_GTK AND NOT HAVE_GTHREAD)
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message(FATAL_ERROR "gthread not found. This library is required when building with GTK support")
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endif()
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if(WITH_OPENGL AND NOT HAVE_GTK3)
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CHECK_MODULE(gtkglext-1.0 HAVE_GTKGLEXT HIGHGUI)
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endif()
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endif()
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# --- OpenGl ---
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ocv_clear_vars(HAVE_OPENGL HAVE_QT_OPENGL)
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if(WITH_OPENGL)
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if(WITH_WIN32UI OR (HAVE_QT AND QT_QTOPENGL_FOUND) OR HAVE_GTKGLEXT)
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find_package (OpenGL QUIET)
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if(OPENGL_FOUND)
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set(HAVE_OPENGL TRUE)
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list(APPEND OPENCV_LINKER_LIBS ${OPENGL_LIBRARIES})
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if(QT_QTOPENGL_FOUND)
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set(HAVE_QT_OPENGL TRUE)
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else()
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ocv_include_directories(${OPENGL_INCLUDE_DIR})
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endif()
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endif()
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endif()
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endif(WITH_OPENGL)
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# --- Carbon & Cocoa ---
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if(APPLE)
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if(WITH_CARBON)
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set(HAVE_CARBON YES)
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elseif(NOT IOS AND CV_CLANG)
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set(HAVE_COCOA YES)
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endif()
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endif()
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