Initial Linux Qt OpenCV project

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.21)
+
+project(chengnan VERSION 0.1.0 LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_AUTOMOC ON)
+set(CMAKE_AUTORCC ON)
+set(CMAKE_AUTOUIC OFF)
+
+# 本项目目标为 Linux 本地构建。Windows 工具链文件仅作为历史参考，不参与构建。
+if (WIN32)
+    message(FATAL_ERROR "chengnan 当前按 README 要求只支持 Linux 构建，请不要使用 Windows 编译工具链。")
+endif()
+
+find_package(Qt6 QUIET COMPONENTS Widgets Concurrent)
+if (NOT Qt6_FOUND)
+    find_package(Qt5 REQUIRED COMPONENTS Widgets Concurrent)
+endif()
+
+find_package(OpenCV REQUIRED COMPONENTS core imgproc imgcodecs)
+
+set(PROJECT_SOURCES
+    app/src/main.cpp
+    app/src/MainWindow.cpp
+    app/src/ImageView.cpp
+    app/src/ImageConverter.cpp
+    app/src/ImageProcessor.cpp
+    app/src/ImageWorker.cpp
+
+    app/include/MainWindow.h
+    app/include/ImageView.h
+    app/include/ImageConverter.h
+    app/include/ImageProcessor.h
+    app/include/ImageWorker.h
+)
+
+if (Qt6_FOUND)
+    qt_add_executable(chengnan ${PROJECT_SOURCES})
+    target_link_libraries(chengnan PRIVATE Qt6::Widgets Qt6::Concurrent ${OpenCV_LIBS})
+else()
+    add_executable(chengnan ${PROJECT_SOURCES})
+    target_link_libraries(chengnan PRIVATE Qt5::Widgets Qt5::Concurrent ${OpenCV_LIBS})
+endif()
+
+target_include_directories(chengnan PRIVATE
+    ${OpenCV_INCLUDE_DIRS}
+    ${CMAKE_CURRENT_SOURCE_DIR}/app/include
+)
+
+target_compile_definitions(chengnan PRIVATE
+    QT_NO_KEYWORDS
+    CHENGNAN_APP_VERSION="${PROJECT_VERSION}"
+)
+
+target_compile_options(chengnan PRIVATE -Wall -Wextra -Wpedantic)
+
+install(TARGETS chengnan RUNTIME DESTINATION bin)