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example(canvas): add MicroPython draw examples (#3823)

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This commit is contained in:
Uli Raich
2022-11-24 11:16:34 +01:00
committed by GitHub
parent f08963732d
commit 01b33b4aba
6 changed files with 176 additions and 0 deletions
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31
examples/widgets/canvas/lv_example_canvas_3.py Normal file
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CANVAS_WIDTH = 50
CANVAS_HEIGHT = 50
LV_COLOR_SIZE = 32
#
# Draw a rectangle to the canvas
#
# Create a buffer for the canvas
cbuf = bytearray((LV_COLOR_SIZE // 8) * CANVAS_WIDTH * CANVAS_HEIGHT)
# Create a canvas and initialize its palette*/
canvas = lv.canvas(lv.scr_act())
canvas.set_buffer(cbuf, CANVAS_WIDTH, CANVAS_HEIGHT, lv.img.CF.TRUE_COLOR)
canvas.fill_bg(lv.color_hex3(0xccc), lv.OPA.COVER)
canvas.center()
dsc = lv.draw_rect_dsc_t()
dsc.init()
dsc.bg_color = lv.palette_main(lv.PALETTE.RED)
dsc.border_color = lv.palette_main(lv.PALETTE.BLUE)
dsc.border_width = 3
dsc.outline_color = lv.palette_main(lv.PALETTE.GREEN)
dsc.outline_width = 2
dsc.outline_pad = 2
dsc.outline_opa = lv.OPA._50
dsc.radius = 5
dsc.border_width = 3
canvas.draw_rect(10, 10, 30, 20, dsc)