100 lines
3.4 KiB
Python
100 lines
3.4 KiB
Python
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import fs_driver
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import sys
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class Lv_Roller_3():
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def __init__(self):
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self.mask_top_id = -1
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self.mask_bottom_id = -1
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#
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# Add a fade mask to roller.
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#
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style = lv.style_t()
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style.init()
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style.set_bg_color(lv.color_black())
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style.set_text_color(lv.color_white())
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lv.scr_act().add_style(style, 0)
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roller1 = lv.roller(lv.scr_act())
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roller1.add_style(style, 0)
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roller1.set_style_border_width(0, 0)
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roller1.set_style_pad_all(0, 0)
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roller1.set_style_bg_opa(lv.OPA.TRANSP, lv.PART.SELECTED)
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#if LV_FONT_MONTSERRAT_22
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# lv_obj_set_style_text_font(roller1, &lv_font_montserrat_22, LV_PART_SELECTED);
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#endif
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try:
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roller1.set_style_text_font(lv.font_montserrat_22,lv.PART.SELECTED)
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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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roller1.set_style_text_font(font_montserrat_22,lv.PART.SELECTED)
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roller1.set_options("\n".join([
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"January",
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"February",
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"March",
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"April",
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"May",
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"June",
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"July",
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"August",
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"September",
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"October",
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"November",
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"December"]),lv.roller.MODE.NORMAL)
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roller1.center()
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roller1.set_visible_row_count(3)
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roller1.add_event_cb(self.mask_event_cb, lv.EVENT.ALL, None)
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def mask_event_cb(self,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.COVER_CHECK:
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e.set_cover_res(lv.COVER_RES.MASKED)
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elif code == lv.EVENT.DRAW_MAIN_BEGIN:
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# add mask
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font = obj.get_style_text_font(lv.PART.MAIN)
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line_space = obj.get_style_text_line_space(lv.PART.MAIN)
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font_h = font.get_line_height()
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roller_coords = lv.area_t()
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obj.get_coords(roller_coords)
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rect_area = lv.area_t()
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rect_area.x1 = roller_coords.x1
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rect_area.x2 = roller_coords.x2
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rect_area.y1 = roller_coords.y1
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rect_area.y2 = roller_coords.y1 + (obj.get_height() - font_h - line_space) // 2
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fade_mask_top = lv.draw_mask_fade_param_t()
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fade_mask_top.init(rect_area, lv.OPA.TRANSP, rect_area.y1, lv.OPA.COVER, rect_area.y2)
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self.mask_top_id = lv.draw_mask_add(fade_mask_top,None)
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rect_area.y1 = rect_area.y2 + font_h + line_space - 1
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rect_area.y2 = roller_coords.y2
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fade_mask_bottom = lv.draw_mask_fade_param_t()
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fade_mask_bottom.init(rect_area, lv.OPA.COVER, rect_area.y1, lv.OPA.TRANSP, rect_area.y2)
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self.mask_bottom_id = lv.draw_mask_add(fade_mask_bottom, None)
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elif code == lv.EVENT.DRAW_POST_END:
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fade_mask_top = lv.draw_mask_remove_id(self.mask_top_id)
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fade_mask_bottom = lv.draw_mask_remove_id(self.mask_bottom_id)
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# Remove the masks
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lv.draw_mask_remove_id(self.mask_top_id)
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lv.draw_mask_remove_id(self.mask_bottom_id)
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self.mask_top_id = -1
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self.mask_bottom_id = -1
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roller3 = Lv_Roller_3()
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