feat(rt-thread): make the rt-thread env recursively glob the UI files

env_support/rt-thread/squareline/SConscript

@@ -1,10 +1,25 @@
 from building import *
 
 cwd = GetCurrentDir()
-src = ['lv_ui_entry.c']
-
-src += Glob(cwd + '/ui/*.c')
-
-group = DefineGroup('LVGL-SquareLine', src, depend = ['PKG_USING_LVGL_SQUARELINE'])
-
+src = Glob('*.c')
+inc = [cwd]
+ 
+# check if .h or .hpp files exsit
+def check_h_hpp_exsit(path):
+    file_dirs = os.listdir(path)
+    for file_dir in file_dirs:
+        if os.path.splitext(file_dir)[1] in ['.h', '.hpp']:
+            return True
+    return False
+ 
+sls_src_cwd = cwd
+for root, dirs, files in os.walk(sls_src_cwd):
+    for dir in dirs:
+        current_path = os.path.join(root, dir)
+        src = src + Glob(os.path.join(current_path,'*.c')) # add all .c files
+        if check_h_hpp_exsit(current_path): # add .h and .hpp path
+            inc = inc + [current_path]
+ 
+group = DefineGroup('LVGL-SquareLine', src, depend = ['PKG_USING_LVGL_SQUARELINE'], CPPPATH = inc)
+ 
 Return('group')