61 lines
2.0 KiB
Python
61 lines
2.0 KiB
Python
import fs_driver
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def event_handler(e):
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code = e.get_code()
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obj = e.get_target()
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if code == lv.EVENT.VALUE_CHANGED:
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option = " "*10
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obj.get_selected_str(option, len(option))
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print("Selected value: %s\n" + option.strip())
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#
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# Roller with various alignments and larger text in the selected area
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#
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# A style to make the selected option larger
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style_sel = lv.style_t()
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style_sel.init()
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try:
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style_sel.set_text_font(lv.font_montserrat_22)
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except:
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fs_drv = lv.fs_drv_t()
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fs_driver.fs_register(fs_drv, 'S')
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print("montserrat-22 not enabled in lv_conf.h, dynamically loading the font")
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font_montserrat_22 = lv.font_load("S:" + "../../assets/font/montserrat-22.fnt")
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style_sel.set_text_font(font_montserrat_22)
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opts = "\n".join(["1","2","3","4","5","6","7","8","9","10"])
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# A roller on the left with left aligned text, and custom width
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roller = lv.roller(lv.scr_act())
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roller.set_options(opts, lv.roller.MODE.NORMAL)
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roller.set_visible_row_count(2)
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roller.set_width(100)
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roller.add_style(style_sel, lv.PART.SELECTED)
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roller.set_style_text_align(lv.TEXT_ALIGN.LEFT, 0)
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roller.align(lv.ALIGN.LEFT_MID, 10, 0)
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roller.add_event_cb(event_handler, lv.EVENT.ALL, None)
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roller.set_selected(2, lv.ANIM.OFF)
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# A roller in the middle with center aligned text, and auto (default) width
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roller = lv.roller(lv.scr_act())
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roller.set_options(opts, lv.roller.MODE.NORMAL)
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roller.set_visible_row_count(3)
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roller.add_style(style_sel, lv.PART.SELECTED)
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roller.align(lv.ALIGN.CENTER, 0, 0)
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roller.add_event_cb(event_handler, lv.EVENT.ALL, None)
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roller.set_selected(5, lv.ANIM.OFF)
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# A roller on the right with right aligned text, and custom width
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roller = lv.roller(lv.scr_act())
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roller.set_options(opts, lv.roller.MODE.NORMAL)
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roller.set_visible_row_count(4)
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roller.set_width(80)
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roller.add_style(style_sel, lv.PART.SELECTED)
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roller.set_style_text_align(lv.TEXT_ALIGN.RIGHT, 0)
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roller.align(lv.ALIGN.RIGHT_MID, -10, 0)
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roller.add_event_cb(event_handler, lv.EVENT.ALL, None)
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roller.set_selected(8, lv.ANIM.OFF)
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