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Thomas Farstrike
78 lines
2.4 KiB
Python
78 lines
2.4 KiB
Python
import _thread
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# Function to execute the child script as a coroutine
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def execute_script(script_source, lvgl_obj):
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try:
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script_globals = {
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'lv': lv,
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'subwindow': lvgl_obj,
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}
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print("Child script: Compiling")
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code = compile(script_source, "<string>", "exec")
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exec(code, script_globals)
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app_main = script_globals.get('app_main')
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if app_main:
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print("Child script: Starting app_main")
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app_main()
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print("Script finished!")
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else:
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print("Child script error: No app_main function defined")
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except Exception as e:
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print("Child script error:", e)
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# Child script buffer: updates label, adds button and slider
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script_buffer = """
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import time
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def app_main():
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print("Child coroutine: Creating UI")
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# Label
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label = lv.label(subwindow)
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label.set_text("Child: 0")
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label.set_style_text_font(lv.font_montserrat_12, 0)
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label.align(lv.ALIGN.TOP_MID, 0, 10)
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# Button
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button = lv.button(subwindow)
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button.set_size(80, 40)
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button.align(lv.ALIGN.CENTER, 0, 0)
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button_label = lv.label(button)
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button_label.set_text("Quit")
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button_label.set_style_text_font(lv.font_montserrat_12, 0)
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# Slider
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slider = lv.slider(subwindow)
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slider.set_range(0, 100)
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slider.align(lv.ALIGN.BOTTOM_MID, 0, -30)
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# Quit flag
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should_continue = True
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# Button callback
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def button_cb(e):
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nonlocal should_continue
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print("Quit button clicked, exiting child")
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should_continue = False
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button.add_event_cb(button_cb, lv.EVENT.CLICKED, None)
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# Slider callback
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def slider_cb(e):
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value = slider.get_value()
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print("Child slider value:", value)
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slider.add_event_cb(slider_cb, lv.EVENT.VALUE_CHANGED, None)
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# Update loop
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count = 0
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while should_continue:
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count += 1
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print("Child coroutine: Updating label to", count)
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label.set_text(f"Child: {count}")
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time.sleep_ms(1000)
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print("Child coroutine: Exiting")
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"""
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# Start the event loop in a background thread
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gc.collect()
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print("Free memory before loop:", gc.mem_free())
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try:
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_thread.stack_size(8192)
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_thread.start_new_thread(execute_script, (script_buffer, subwindow))
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print("Event loop started in background thread")
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except Exception as e:
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print("Error starting event loop thread:", e)
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