Add README.md and draft_code

2026-05-20 11:51:27 -07:00 · 2025-04-30 09:22:06 +02:00
parent e4372a984c
commit cf5bbfa958
11 changed files with 1063 additions and 538 deletions
@@ -0,0 +1,77 @@
+import _thread
+
+# Function to execute the child script as a coroutine
+def execute_script(script_source, lvgl_obj):
+    try:
+        script_globals = {
+            'lv': lv,
+            'subwindow': lvgl_obj,
+        }
+        print("Child script: Compiling")
+        code = compile(script_source, "<string>", "exec")
+        exec(code, script_globals)
+        app_main = script_globals.get('app_main')
+        if app_main:
+            print("Child script: Starting app_main")
+            app_main()
+            print("Script finished!")
+        else:
+            print("Child script error: No app_main function defined")
+    except Exception as e:
+        print("Child script error:", e)
+
+
+# Child script buffer: updates label, adds button and slider
+script_buffer = """
+import time
+def app_main():
+    print("Child coroutine: Creating UI")
+    # Label
+    label = lv.label(subwindow)
+    label.set_text("Child: 0")
+    label.set_style_text_font(lv.font_montserrat_12, 0)
+    label.align(lv.ALIGN.TOP_MID, 0, 10)
+    # Button
+    button = lv.button(subwindow)
+    button.set_size(80, 40)
+    button.align(lv.ALIGN.CENTER, 0, 0)
+    button_label = lv.label(button)
+    button_label.set_text("Quit")
+    button_label.set_style_text_font(lv.font_montserrat_12, 0)
+    # Slider
+    slider = lv.slider(subwindow)
+    slider.set_range(0, 100)
+    slider.align(lv.ALIGN.BOTTOM_MID, 0, -30)
+    # Quit flag
+    should_continue = True
+    # Button callback
+    def button_cb(e):
+        nonlocal should_continue
+        print("Quit button clicked, exiting child")
+        should_continue = False
+    button.add_event_cb(button_cb, lv.EVENT.CLICKED, None)
+    # Slider callback
+    def slider_cb(e):
+        value = slider.get_value()
+        print("Child slider value:", value)
+    slider.add_event_cb(slider_cb, lv.EVENT.VALUE_CHANGED, None)
+    # Update loop
+    count = 0
+    while should_continue:
+        count += 1
+        print("Child coroutine: Updating label to", count)
+        label.set_text(f"Child: {count}")
+        time.sleep_ms(1000)
+    print("Child coroutine: Exiting")
+"""
+
+
+# Start the event loop in a background thread
+gc.collect()
+print("Free memory before loop:", gc.mem_free())
+try:
+    _thread.stack_size(8192)
+    _thread.start_new_thread(execute_script, (script_buffer, subwindow))
+    print("Event loop started in background thread")
+except Exception as e:
+    print("Error starting event loop thread:", e)