Improve Windows support

CMakeLists.txt

@@ -8,7 +8,27 @@ find_package(Qt5 COMPONENTS Core Widgets CONFIG REQUIRED)
 
 add_subdirectory(libxiv)
 
-find_package(fmt)
+include(FetchContent)
+
+find_package(fmt QUIET)
+
+if(TARGET fmt::fmt)
+    message("Using system library for fmt")
+
+    set(LIBRARIES fmt::fmt ${LIBRARIES})
+else()
+    message("Using built-in fmt")
+
+    FetchContent_Declare(
+            fmt
+            GIT_REPOSITORY https://github.com/fmtlib/fmt
+            GIT_TAG        master
+    )
+
+    FetchContent_MakeAvailable(fmt)
+
+    set(LIBRARIES fmt::fmt ${LIBRARIES})
+endif()
 
 add_executable(novus
         src/main.cpp
@@ -16,4 +36,21 @@ add_executable(novus
 target_include_directories(novus
         PUBLIC
         include)
-target_link_libraries(novus PUBLIC libxiv fmt::fmt z  Qt5::Core Qt5::Widgets)
+target_link_libraries(novus PUBLIC libxiv ${LIBRARIES} Qt5::Core Qt5::Widgets)
+
+install(TARGETS novus
+        DESTINATION "${INSTALL_BIN_PATH}")
+
+if(WIN32)
+    get_target_property(QMAKE_EXE Qt5::qmake IMPORTED_LOCATION)
+    get_filename_component(QT_BIN_DIR "${QMAKE_EXE}" DIRECTORY)
+
+    find_program(WINDEPLOYQT_ENV_SETUP qtenv2.bat HINTS "${QT_BIN_DIR}")
+    find_program(WINDEPLOYQT_EXECUTABLE windeployqt HINTS "${QT_BIN_DIR}")
+
+    # Run windeployqt immediately after build
+    add_custom_command(TARGET novus
+            POST_BUILD
+            COMMAND "${WINDEPLOYQT_ENV_SETUP}" && "${WINDEPLOYQT_EXECUTABLE}" \"$<TARGET_FILE:novus>\"
+            )
+endif()