opencv/cmake/OpenCVFindLibsGUI.cmake
2021-12-07 12:12:42 +00:00

121 lines
3.5 KiB
CMake

# ----------------------------------------------------------------------------
# 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()
macro(ocv_find_package_Qt4)
find_package(Qt4 COMPONENTS QtCore QtGui QtTest ${ARGN})
if(QT4_FOUND)
set(QT_FOUND 1)
ocv_assert(QT_VERSION_MAJOR EQUAL 4)
endif()
endmacro()
macro(ocv_find_package_Qt OCV_QT_VER)
find_package(Qt${OCV_QT_VER} COMPONENTS Core Gui Widgets Test Concurrent ${ARGN} NO_MODULE)
if(Qt${OCV_QT_VER}_FOUND)
set(QT_FOUND 1)
set(QT_VERSION "${Qt${OCV_QT_VER}_VERSION}")
set(QT_VERSION_MAJOR "${Qt${OCV_QT_VER}_VERSION_MAJOR}")
set(QT_VERSION_MINOR "${Qt${OCV_QT_VER}_VERSION_MINOR}")
set(QT_VERSION_PATCH "${Qt${OCV_QT_VER}_VERSION_PATCH}")
set(QT_VERSION_TWEAK "${Qt${OCV_QT_VER}_VERSION_TWEAK}")
set(QT_VERSION_COUNT "${Qt${OCV_QT_VER}_VERSION_COUNT}")
endif()
endmacro()
# --- QT4 ---
if(WITH_QT)
if(NOT WITH_QT GREATER 0)
# BUG: Qt5Config.cmake script can't handle components properly: find_package(QT NAMES Qt6 Qt5 REQUIRED NO_MODULE COMPONENTS Core Gui Widgets Test Concurrent)
ocv_find_package_Qt(6 QUIET)
if(NOT QT_FOUND)
ocv_find_package_Qt(5 QUIET)
endif()
if(NOT QT_FOUND)
ocv_find_package_Qt4(QUIET)
endif()
elseif(WITH_QT EQUAL 4)
ocv_find_package_Qt4(REQUIRED)
else() # WITH_QT=<major version>
ocv_find_package_Qt("${WITH_QT}" REQUIRED)
endif()
if(QT_FOUND)
set(HAVE_QT ON)
if(QT_VERSION_MAJOR GREATER 4)
find_package(Qt${QT_VERSION_MAJOR} COMPONENTS OpenGL QUIET)
if(Qt${QT_VERSION_MAJOR}OpenGL_FOUND)
set(QT_QTOPENGL_FOUND ON) # HAVE_QT_OPENGL is defined below
endif()
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)
ocv_check_modules(GTK3 gtk+-3.0)
if(HAVE_GTK3)
ocv_append_build_options(HIGHGUI GTK3)
set(HAVE_GTK TRUE)
endif()
endif()
if(NOT HAVE_GTK)
ocv_check_modules(GTK2 gtk+-2.0)
if(HAVE_GTK2)
if (GTK2_VERSION VERSION_LESS MIN_VER_GTK)
message (FATAL_ERROR "GTK support requires a minimum version of ${MIN_VER_GTK} (${GTK2_VERSION} found)")
else()
ocv_append_build_options(HIGHGUI GTK2)
set(HAVE_GTK TRUE)
endif()
endif()
endif()
ocv_check_modules(GTHREAD gthread-2.0)
if(HAVE_GTK AND NOT HAVE_GTHREAD)
message(FATAL_ERROR "gthread not found. This library is required when building with GTK support")
else()
ocv_append_build_options(HIGHGUI GTHREAD)
endif()
if(WITH_OPENGL AND NOT HAVE_GTK3)
ocv_check_modules(GTKGLEXT gtkglext-1.0)
if(HAVE_GTKGLEXT)
ocv_append_build_options(HIGHGUI GTKGLEXT)
endif()
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)
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 CV_CLANG)
set(HAVE_COCOA YES)
endif()
endif()