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libraries/lvgl/env_support/rt-thread/squareline/README.md

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+This folder is for LVGL SquareLine Studio
+
+SquareLine Studio can automatically put the generated C files into `ui` folder, so that rt-thread will automatically detect them; or, as a user, you can move the generated C files into `ui` folder manually.
+

libraries/lvgl/env_support/rt-thread/squareline/SConscript

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+from building import *
+
+cwd = GetCurrentDir()
+group = []
+src = []
+CPPPATH =[]
+
+src += Glob(cwd + '/ui/*.c')
+CPPPATH += [cwd+'/ui']
+
+group = group + DefineGroup('LVGL-SquareLine', src, depend = ['PKG_USING_LVGL_SQUARELINE'], CPPPATH = CPPPATH)
+
+Return('group')

libraries/lvgl/env_support/rt-thread/squareline/ui/lv_ui_entry.c

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+/*
+ * Copyright (c) 2006-2022, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author        Notes
+ * 2022-05-13     Meco Man      First version
+ */
+
+#ifdef __RTTHREAD__
+
+void lv_user_gui_init(void)
+{
+    extern void ui_init(void);
+    ui_init();
+}
+
+#endif /* __RTTHREAD__ */