添加布局算法并在新建窗口时应用规则

src/CMakeLists.txt

@@ -15,7 +15,7 @@ project(${APP_NAME}
     LANGUAGES C
 )
 
-add_executable(${APP_NAME} main.c utils.c)
+add_executable(${APP_NAME} main.c utils.c layout.c)
 
 # use C17
 set_property(TARGET ${APP_NAME} PROPERTY C_STANDARD 17)
@@ -58,6 +58,7 @@ target_include_directories(${APP_NAME}
 )
 
 target_link_libraries(${APP_NAME}
+    PRIVATE m
     PRIVATE ${GLIB_LIBRARIES}
     PRIVATE ${CAIRO_XCB_LIBRARIES}
     PRIVATE ${LIB_XCB_NAME}