first commit

2026-09-27 17:21:39 +02:00 · 2026-09-27 17:21:39 +02:00 · e6a42e28e9
commit e6a42e28e9
4355 changed files with 4626605 additions and 0 deletions
--- a/libraries/lvgl/examples/widgets/roller/lv_example_roller_3.py
+++ b/libraries/lvgl/examples/widgets/roller/lv_example_roller_3.py
@ -0,0 +1,99 @@
+import fs_driver
+import sys
+
+class Lv_Roller_3():
+
+    def __init__(self):
+        self.mask_top_id = -1
+        self.mask_bottom_id = -1
+
+        #
+        # Add a fade mask to roller.
+        #
+        style = lv.style_t()
+        style.init()
+        style.set_bg_color(lv.color_black())
+        style.set_text_color(lv.color_white())
+
+        lv.scr_act().add_style(style, 0)
+
+        roller1 = lv.roller(lv.scr_act())
+        roller1.add_style(style, 0)
+        roller1.set_style_border_width(0, 0)
+        roller1.set_style_pad_all(0, 0)
+        roller1.set_style_bg_opa(lv.OPA.TRANSP, lv.PART.SELECTED)
+
+        #if LV_FONT_MONTSERRAT_22
+        #    lv_obj_set_style_text_font(roller1, &lv_font_montserrat_22, LV_PART_SELECTED);
+        #endif
+        try:
+            roller1.set_style_text_font(lv.font_montserrat_22,lv.PART.SELECTED)
+        except:
+            fs_drv = lv.fs_drv_t()
+            fs_driver.fs_register(fs_drv, 'S')
+            print("montserrat-22 not enabled in lv_conf.h, dynamically loading the font")
+            font_montserrat_22 = lv.font_load("S:" + "../../assets/font/montserrat-22.fnt")
+            roller1.set_style_text_font(font_montserrat_22,lv.PART.SELECTED)
+
+        roller1.set_options("\n".join([
+            "January",
+            "February",
+            "March",
+            "April",
+            "May",
+            "June",
+            "July",
+            "August",
+            "September",
+            "October",
+            "November",
+            "December"]),lv.roller.MODE.NORMAL)
+
+        roller1.center()
+        roller1.set_visible_row_count(3)
+        roller1.add_event_cb(self.mask_event_cb, lv.EVENT.ALL, None)
+
+    def mask_event_cb(self,e):
+
+        code = e.get_code()
+        obj = e.get_target()
+
+        if code == lv.EVENT.COVER_CHECK:
+            e.set_cover_res(lv.COVER_RES.MASKED)
+
+        elif code == lv.EVENT.DRAW_MAIN_BEGIN:
+            # add mask
+            font = obj.get_style_text_font(lv.PART.MAIN)
+            line_space = obj.get_style_text_line_space(lv.PART.MAIN)
+            font_h = font.get_line_height()
+
+            roller_coords = lv.area_t()
+            obj.get_coords(roller_coords)
+
+            rect_area = lv.area_t()
+            rect_area.x1 = roller_coords.x1
+            rect_area.x2 = roller_coords.x2
+            rect_area.y1 = roller_coords.y1
+            rect_area.y2 = roller_coords.y1 + (obj.get_height() - font_h - line_space) // 2
+
+            fade_mask_top = lv.draw_mask_fade_param_t()
+            fade_mask_top.init(rect_area, lv.OPA.TRANSP, rect_area.y1, lv.OPA.COVER, rect_area.y2)
+            self.mask_top_id = lv.draw_mask_add(fade_mask_top,None)
+
+            rect_area.y1 = rect_area.y2 + font_h + line_space - 1
+            rect_area.y2 = roller_coords.y2
+
+            fade_mask_bottom = lv.draw_mask_fade_param_t()
+            fade_mask_bottom.init(rect_area, lv.OPA.COVER, rect_area.y1, lv.OPA.TRANSP, rect_area.y2)
+            self.mask_bottom_id = lv.draw_mask_add(fade_mask_bottom, None)
+
+        elif code == lv.EVENT.DRAW_POST_END:
+            fade_mask_top = lv.draw_mask_remove_id(self.mask_top_id)
+            fade_mask_bottom = lv.draw_mask_remove_id(self.mask_bottom_id)
+            # Remove the masks
+            lv.draw_mask_remove_id(self.mask_top_id)
+            lv.draw_mask_remove_id(self.mask_bottom_id)
+            self.mask_top_id = -1
+            self.mask_bottom_id = -1
+
+roller3 = Lv_Roller_3()