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51 lines
1.4 KiB
Python
51 lines
1.4 KiB
Python
def ta_event_cb(e):
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ta = e.get_target()
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txt = ta.get_text()
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# print(txt)
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pos = ta.get_cursor_pos()
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# print("cursor pos: ",pos)
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# find position of ":" in text
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colon_pos= txt.find(":")
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# if there are more than 2 digits before the colon, remove the last one entered
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if colon_pos == 3:
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ta.del_char()
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if colon_pos != -1:
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# if there are more than 3 digits after the ":" remove the last one entered
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rest = txt[colon_pos:]
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if len(rest) > 3:
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ta.del_char()
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if len(txt) < 2:
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return
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if ":" in txt:
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return
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if txt[0] >= '0' and txt[0] <= '9' and \
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txt[1] >= '0' and txt[1] <= '9':
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if len(txt) == 2 or txt[2] != ':' :
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ta.set_cursor_pos(2)
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ta.add_char(ord(':'))
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#
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# Automatically format text like a clock. E.g. "12:34"
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# Add the ':' automatically
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#
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# Create the text area
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LV_HOR_RES = lv.scr_act().get_disp().driver.hor_res
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LV_VER_RES = lv.scr_act().get_disp().driver.ver_res
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ta = lv.textarea(lv.scr_act())
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ta.add_event_cb(ta_event_cb, lv.EVENT.VALUE_CHANGED, None)
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ta.set_accepted_chars("0123456789:")
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ta.set_max_length(5)
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ta.set_one_line(True)
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ta.set_text("")
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ta.add_state(lv.STATE.FOCUSED)
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# Create a keyboard
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kb = lv.keyboard(lv.scr_act())
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kb.set_size(LV_HOR_RES, LV_VER_RES // 2)
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kb.set_mode(lv.keyboard.MODE.NUMBER)
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kb.set_textarea(ta)
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