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