def draw_part_event_cb(e):
objc = e.get_code()
objt = e.get_target()
dsc = lv.obj_draw_part_dsc_t.__cast__(e.get_param())
s_row = lv.point_t()
s_col = lv.point_t()
if objc == lv.EVENT.PRESSING:
'''only in effect if cell is pressed'''
objt.get_selected_cell(s_row, s_col)
print("selected row:{}, col:{}".format(s_row.x, s_col.x))
if objc == lv.EVENT.DRAW_PART_BEGIN:
'''only change when draw part begins'''
if dsc.part == lv.PART.ITEMS:
#print('true!')
row = dsc.id // objt.get_col_cnt()
col = dsc.id - row * objt.get_col_cnt()
#print("row : {}, column : {} ".format(row,col))
if row == 0:
#change header style
dsc.label_dsc.align = lv.TEXT_ALIGN.CENTER
dsc.label_dsc.color = lv.color_hex(0xffffff)
dsc.rect_dsc.bg_color = lv.color_hex(0x6b765b)
if row > 0 and col > 0:
#center colum 1 and 2
dsc.label_dsc.align = lv.TEXT_ALIGN.CENTER
def testfastlines(canvas, color1, color2):
# there are no hline and vline calls in the lvgl display driver
# replace them by normal lines
p1 = lv.point_t()
p2 = lv.point_t()
point_array = [p1, p2]
# style for horizontal lines
hline_dsc = lv.draw_line_dsc_t()
hline_dsc.init()
hline_dsc.color = color1
hline_dsc.opa = lv.OPA.COVER
# style for vertical lines
vline_dsc = lv.draw_line_dsc_t()
vline_dsc.init()
vline_dsc.color = color2
vline_dsc.opa = lv.OPA.COVER
print("Test horizontal and vertical fast lines")
p1.x = 0
p2.x = CANVAS_WIDTH - 1
for y in range(0, CANVAS_HEIGHT - 1, 5):
p1.y = y
p2.y = y
canvas.draw_line(point_array, 2, hline_dsc)
p1.y = 0
p2.y = CANVAS_HEIGHT - 1
for x in range(0, CANVAS_WIDTH - 1, 5):
p1.x = x
p2.x = x
canvas.draw_line(point_array, 2, vline_dsc)
def testtriangles(canvas):
print("Test triangles")
offset = (CANVAS_WIDTH - CANVAS_HEIGHT) // 2
p1 = lv.point_t()
p2 = lv.point_t()
point_array = [p1, p2]
line_dsc = lv.draw_line_dsc_t()
line_dsc.init()
w = CANVAS_HEIGHT // 2
x = CANVAS_HEIGHT - 1
y = 0
z = CANVAS_HEIGHT - 1
for i in range(0, 15):
line_dsc.color = colors[i]
p1.x = w + offset
p1.y = y
p2.x = y + offset
p2.y = x
canvas.draw_line(point_array, 2, line_dsc)
p1.x = y + offset
p1.y = x
p2.x = z + offset
canvas.draw_line(point_array, 2, line_dsc)
p1.x = z + offset
p2.x = w + offset
p2.y = y
canvas.draw_line(point_array, 2, line_dsc)
x -= 8
y += 8
z -= 8
def __init__(self, i2c_dev=0, sda=21, scl=22, freq=400000, addr=0x38, width=-1, height=-1,
inv_x=False, inv_y=False, swap_xy=False):
if not lv.is_initialized():
lv.init()
self.width, self.height = width, height
self.inv_x, self.inv_y, self.swap_xy = inv_x, inv_y, swap_xy
self.i2c = I2C(i2c_dev, sda=Pin(sda), scl=Pin(scl), freq=freq)
self.addr = addr
try:
print("FT6X36 touch IC ready (fw id 0x{0:X} rel {1:d}, lib {2:X})".format( \
int.from_bytes(self.i2c.readfrom_mem(self.addr, 0xA6, 1), "big"), \
int.from_bytes(self.i2c.readfrom_mem(self.addr, 0xAF, 1), "big"), \
int.from_bytes(self.i2c.readfrom_mem(self.addr, 0xA1, 2), "big") \
))
except:
print("FT6X36 touch IC not responding")
return
self.point = lv.point_t( {'x': 0, 'y': 0} )
self.points = [lv.point_t( {'x': 0, 'y': 0} ), lv.point_t( {'x': 0, 'y': 0} )]
self.state = lv.INDEV_STATE.RELEASED
self.indev_drv = lv.indev_drv_t()
self.indev_drv.init()
self.indev_drv.type = lv.INDEV_TYPE.POINTER
self.indev_drv.read_cb = self.callback
self.indev_drv.register()
def cb(self, obj, event):
# check event
if event == lv.EVENT.DELETE:
self.task.cancel()
elif event == lv.EVENT.PRESSED:
# get coords
point = lv.point_t()
indev = lv.indev_get_act()
lv.indev_get_point(indev, point)
self._press_start = point
elif event == lv.EVENT.RELEASED:
if (len(self._text) <= self.MIN_SIZE
or len(self._text) > self.MAX_SIZE):
self.toggle_fullscreen()
return
point = lv.point_t()
indev = lv.indev_get_act()
lv.indev_get_point(indev, point)
# if swipe
if (abs(self._press_start.x - point.x)
+ abs(self._press_start.y - point.y) > 100):
self.toggle_fullscreen()
return
if self.idx is None:
self.idx = 0
self.set_frame()
else:
self.idx = None
self._set_text(self._text)
self.updata_note()
def __init__(self):
self.value = 0
canvas_style = lv.style_t()
canvas_style.init()
canvas_style.set_bg_color(lv.STATE.DEFAULT, lv_colors.WHITE)
cbuf = bytearray(SCREEN_WIDTH * 30 * 4)
canvas = lv.canvas(lv.scr_act(), None)
canvas.set_buffer(cbuf, SCREEN_WIDTH, 30, lv.img.CF.TRUE_COLOR)
# canvas.add_style(lv.canvas.PART.MAIN,canvas_style)
canvas.align(None, lv.ALIGN.IN_TOP_LEFT, 0, 0)
p1 = lv.point_t()
p2 = lv.point_t()
point_array = [p1, p2]
p1.x = 0
p1.y = 0
p2.x = 15
p2.y = p1.y
# style for horizontal lines
line_dsc = lv.draw_line_dsc_t()
line_dsc.init()
line_dsc.color = lv_colors.BLUE
line_dsc.opa = lv.OPA.COVER
line_dsc.width = 5
# draw the horizontal lines
canvas.draw_line(point_array, 2, line_dsc)
p1.x = 130
p2.x = SCREEN_WIDTH
canvas.draw_line(point_array, 2, line_dsc)
# draw the vertical lines
p1.x = 0
p2.x = p1.x
p2.y = 30
canvas.draw_line(point_array, 2, line_dsc)
p1.x = SCREEN_WIDTH - 3
p2.x = p1.x
canvas.draw_line(point_array, 2, line_dsc)
text_style = lv.style_t()
text_style.init()
text_style.set_text_font(lv.STATE.DEFAULT, lv.font_montserrat_18)
text_style.set_bg_color(lv.STATE.DEFAULT, lv_colors.BLACK)
text_style.set_bg_opa(lv.STATE.DEFAULT, lv.OPA.COVER)
self.label = lv.label(canvas, None)
self.label.add_style(lv.label.PART.MAIN, text_style)
self.label.set_recolor(True)
self.reset()
self.label.align(None, lv.ALIGN.OUT_TOP_MID, -60, 25)
def event_cb(self, e):
code = e.get_code()
chart = lv.chart.__cast__(e.get_target())
if code == lv.EVENT.VALUE_CHANGED:
# print("last_id: ",self.last_id)
self.last_id = chart.get_pressed_point()
if self.last_id != lv.CHART_POINT.NONE:
p = lv.point_t()
chart.get_point_pos_by_id(self.ser, self.last_id, p)
chart.set_cursor_point(self.cursor, None, self.last_id)
elif code == lv.EVENT.DRAW_PART_END:
# print("EVENT.DRAW_PART_END")
dsc = lv.obj_draw_part_dsc_t.cast(e.get_param())
# if dsc.p1 and dsc.p2:
# print("p1, p2", dsc.p1,dsc.p2)
# print("p1.y, p2.y", dsc.p1.y, dsc.p2.y)
# print("last_id: ",self.last_id)
if dsc.part == lv.PART.CURSOR and dsc.p1 and dsc.p2 and dsc.p1.y == dsc.p2.y and self.last_id >= 0:
v = self.ser_p[self.last_id]
# print("value: ",v)
value_txt = str(v)
size = lv.point_t()
lv.txt_get_size(size, value_txt, lv.font_default(), 0, 0,
lv.COORD.MAX, lv.TEXT_FLAG.NONE)
a = lv.area_t()
a.y2 = dsc.p1.y - 5
a.y1 = a.y2 - size.y - 10
a.x1 = dsc.p1.x + 10
a.x2 = a.x1 + size.x + 10
draw_rect_dsc = lv.draw_rect_dsc_t()
draw_rect_dsc.init()
draw_rect_dsc.bg_color = lv.palette_main(lv.PALETTE.BLUE)
draw_rect_dsc.radius = 3
lv.draw_rect(a, dsc.clip_area, draw_rect_dsc)
draw_label_dsc = lv.draw_label_dsc_t()
draw_label_dsc.init()
draw_label_dsc.color = lv.color_white()
a.x1 += 5
a.x2 -= 5
a.y1 += 5
a.y2 -= 5
lv.draw_label(a, dsc.clip_area, draw_label_dsc, value_txt,
None)
def set_value(self, value):
# print("set value: ",value)
if self.value == value:
return
p1 = lv.point_t()
p2 = lv.point_t()
point_array = [p1, p2]
rect_dsc = lv.draw_rect_dsc_t()
rect_dsc.init()
rect_dsc.bg_opa = lv.OPA.COVER
rect_dsc.border_width = 0
# draw the new bar
if value > self.value:
self.value = value
value_y = round((self.height - 4) /
(self.max_value - self.min_value) * self.value)
rect_dsc.bg_color = self.bar_color
self.canvas.draw_rect(self.width // 5 + 5, self.base - value_y,
2 * self.width // 5, value_y, rect_dsc)
else:
# remove the difference from the old value from the bar
old_value_y = round((self.height - 4) /
(self.max_value - self.min_value) * self.value)
self.value = value
value_y = round((self.height - 4) /
(self.max_value - self.min_value) * self.value)
rect_dsc.bg_color = self.bg_color
self.canvas.draw_rect(self.width // 5 + 5, self.base - old_value_y,
2 * self.width // 5, old_value_y - value_y,
rect_dsc)
if self.divisions > 0:
dy = (self.height - 4) / self.divisions # Tick marks
# print("dy: ",dy)
for tick in range(self.divisions + 1):
ypos = int(dy * tick)
p1.x = self.width // 5
p1.y = ypos + 2
p2.x = p1.x + self.width - 2 * self.width // 5
p2.y = p1.y
if p1.y >= self.base - old_value_y and p1.y < self.base - value_y:
self.canvas.draw_line(point_array, 2, self.hline_dsc)
break
if self.value_text_format:
value_text = self.value_text_format.format(self.value)
self.value_label.set_text(value_text)
def draw_filledCircle(canvas, x0, y0, r, color):
"""Draw a filled circle.
Args:
x0 (int): X coordinate of center point.
y0 (int): Y coordinate of center point.
r (int): Radius.
color (int): RGB565 color value.
"""
p1 = lv.point_t()
p2 = lv.point_t()
point_array = [p1, p2]
line_dsc = lv.draw_line_dsc_t()
line_dsc.init()
line_dsc.color = color
line_dsc.opa = lv.OPA.COVER
f = 1 - r
dx = 1
dy = -r - r
x = 0
y = r
p1.x = x0
p1.y = y0 - r
p2.x = p1.x
p2.y = p1.y + 2 * r + 1
canvas.draw_line(point_array, 2, line_dsc)
while x < y:
if f >= 0:
y -= 1
dy += 2
f += dy
x += 1
dx += 2
f += dx
p1.x = x0 + x
p1.y = y0 - y
p2.x = p1.x
p2.y = p1.y + 2 * y + 1
canvas.draw_line(point_array, 2, line_dsc)
p1.x = x0 - x
p2.x = p1.x
canvas.draw_line(point_array, 2, line_dsc)
p1.x = x0 - y
p1.y = y0 - x
p2.x = p1.x
p2.y = p1.y + 2 * x + 1
canvas.draw_line(point_array, 2, line_dsc)
p1.x = x0 + y
p2.x = p1.x
canvas.draw_line(point_array, 2, line_dsc)
def lv_line(screen):
line_points = [[5,5], [70,70]]
valid_pos = [lv.point_t(), lv.point_t(), lv.point_t(), lv.point_t(), lv.point_t(), lv.point_t(), lv.point_t()]
valid_pos[0].x = 0
valid_pos[0].y = 0
valid_pos[1].x = 10
valid_pos[1].y = 0
valid_pos[2].x = 10
valid_pos[2].y = 10
valid_pos[3].x = 0
valid_pos[3].y = 10
valid_pos[4].x = 10
valid_pos[4].y = 10
valid_pos[5].x = 10
valid_pos[5].y = 20
valid_pos[6].x = 0
valid_pos[6].y = 20
line_style2 = lv.style_t()
line_style2.init()
line_style2.set_line_width(lv.STATE.DEFAULT, 8)
line_style2.set_line_color(lv.STATE.DEFAULT, styles.LV_COLOR_BLUE)
line_style2.set_line_rounded(lv.STATE.DEFAULT, True)
cont_style = lv.style_t()
cont_style.init()
cont_style.set_border_opa(lv.STATE.DEFAULT, lv.OPA.TRANSP)
cont_style.set_bg_opa(lv.STATE.DEFAULT, lv.OPA.TRANSP)
# cont_style.set_bg_color(lv.STATE.DEFAULT, styles.LV_COLOR_WATCH)
cont = lv.cont(screen)
#cont.add_style(cont.PART.MAIN, cont_style)
cont.set_auto_realign(True)
cont.set_size(200,65)
cont.set_pos(20,85)
#cont.align_origo(None, lv.ALIGN.CENTER, 0, 0)
cont.set_fit(lv.FIT.NONE)
# cont.set_layout(lv.LAYOUT.PRETTY_MID)
cont.set_layout(lv.LAYOUT.ROW_MID)
line = lv.line(cont)
points = styles.get_line_pts_from_num(1, size=40)
line.set_points(points, len(points))
line.add_style(line.PART.MAIN, line_style2)
line.align(None, lv.ALIGN.CENTER, 0, 0)
line2 = lv.line(cont)
points = styles.get_line_pts_from_num(2, size=40)
line2.set_points(points, len(points))
line2.add_style(line2.PART.MAIN, line_style2)
line2.align(None, lv.ALIGN.CENTER, 0, 0)
def slider_event_cb(e):
code = e.get_code()
obj = e.get_target()
# Provide some extra space for the value
if code == lv.EVENT.REFR_EXT_DRAW_SIZE:
e.set_ext_draw_size(50)
elif code == lv.EVENT.DRAW_PART_END:
# print("DRAW_PART_END")
dsc = lv.obj_draw_part_dsc_t.__cast__(e.get_param())
# print(dsc)
if dsc.part == lv.PART.INDICATOR:
label_text = "{:d} - {:d}".format(obj.get_left_value(),slider.get_value())
label_size = lv.point_t()
lv.txt_get_size(label_size, label_text, lv.font_default(), 0, 0, lv.COORD.MAX, 0)
# print(label_size.x,label_size.y)
label_area = lv.area_t()
label_area.x1 = dsc.draw_area.x1 + dsc.draw_area.get_width() // 2 - label_size.x // 2
label_area.x2 = label_area.x1 + label_size.x
label_area.y2 = dsc.draw_area.y1 - 10
label_area.y1 = label_area.y2 - label_size.y
label_draw_dsc = lv.draw_label_dsc_t()
label_draw_dsc.init()
lv.draw_label(label_area, dsc.clip_area, label_draw_dsc, label_text, None)
def calibrate_clicked(self):
point = self.points[self.cur_point]
indev = lv.indev_get_act()
indev.get_point(self.med[self.cur_touch])
# print("calibrate_clicked: x: %d, y: %d"%(self.med[self.cur_touch].x,self.med[self.cur_touch].y))
self.cur_touch += 1
if self.cur_touch == self.touch_count:
med_x = sorted([med.x for med in self.med])
med_y = sorted([med.y for med in self.med])
x = med_x[len(med_x) // 2]
y = med_y[len(med_y) // 2]
point.touch_coordinate = lv.point_t({'x': x, 'y': y})
self.cur_point += 1
self.cur_touch = 0
if self.cur_point == len(self.points):
self.calibrate(self.points)
self.cur_point = 0
self.show_text("Click/drag on screen\n" + \
"to check calibration")
self.big_btn.set_event_cb(lambda event, self=self: self.check(),
lv.EVENT.PRESSING,
None)
else:
self.show_circle()
def check(self):
point = lv.point_t()
indev = lv.indev_get_act()
indev.get_point(point)
# print("click position: x: %d, y: %d"%(point.x,point.y))
self.circ_area.set_pos(point.x - CIRCLE_SIZE // 2,
point.y - CIRCLE_SIZE // 2)
def __init__(self, parent):
super().__init__(parent, 20)
self.vect = lv.point_t()
self.set_size(100, 80)
self.add_title("Pop")
msg_box_close_btn = self.add_btn(lv.SYMBOL.CLOSE, 20)
msg_box_close_btn.add_event_cb(lambda e: self.close_msg_box(),
lv.EVENT.RELEASED, None)
header = self.get_header()
header.set_style_bg_color(lv.color_hex3(0xFEE), lv.PART.MAIN)
content = self.get_content()
content.set_style_bg_color(lv.color_hex3(0xFFF), lv.PART.MAIN)
self.set_style_border_width(4, lv.PART.MAIN)
self.set_style_border_color(lv.color_hex3(0xF88), lv.PART.MAIN)
self.set_style_shadow_color(lv.color_hex3(0x000), lv.PART.MAIN)
self.set_style_shadow_opa(50, lv.PART.MAIN)
self.set_style_shadow_width(20, lv.PART.MAIN)
self.set_style_shadow_ofs_x(10, lv.PART.MAIN)
self.set_style_shadow_ofs_y(10, lv.PART.MAIN)
self.set_style_shadow_spread(0, lv.PART.MAIN)
self.set_style_radius(10, lv.PART.MAIN)
self.label = lv.label(content)
for element in [content, header]:
element.add_event_cb(self.drag_event_handler, lv.EVENT.PRESSING,
None)
self.opened = True
def polar(canvas, origin, line, width, color):
line_dsc = lv.draw_line_dsc_t()
line_dsc.init()
line_dsc.color = color
line_dsc.width = width
p1 = lv.point_t()
p2 = lv.point_t()
point_array = [p1, p2]
xs, ys = origin.real, origin.imag
p1.x = round(xs)
p1.y = round(ys)
p2.x = round(xs + line.real)
p2.y = round(ys - line.imag)
# print("x0: %d, y0: %d, x1: %d, y1: %d"%(round(xs), round(ys), round(xs + line.real), round(ys - line.imag)))
canvas.draw_line(point_array, 2, line_dsc)
def getCenter(obj):
ar = lv.area_t()
obj.get_coords(ar)
pt = lv.point_t()
pt.x = (ar.x1+ar.x2)//2
pt.y = (ar.y1+ar.y2)//2
return pt
def event_cb(e):
dsc = lv.obj_draw_part_dsc_t.cast(e.get_param())
if dsc.part != lv.PART.INDICATOR:
return
obj = lv.bar.__cast__(e.get_target())
label_dsc = lv.draw_label_dsc_t()
label_dsc.init()
# label_dsc.font = LV_FONT_DEFAULT;
value_txt = str(obj.get_value())
txt_size = lv.point_t()
lv.txt_get_size(txt_size, value_txt, label_dsc.font,
label_dsc.letter_space, label_dsc.line_space, lv.COORD.MAX,
label_dsc.flag)
txt_area = lv.area_t()
# If the indicator is long enough put the text inside on the right
if dsc.draw_area.get_width() > txt_size.x + 20:
txt_area.x2 = dsc.draw_area.x2 - 5
txt_area.x1 = txt_area.x2 - txt_size.x + 1
label_dsc.color = lv.color_white()
# If the indicator is still short put the text out of it on the right*/
else:
txt_area.x1 = dsc.draw_area.x2 + 5
txt_area.x2 = txt_area.x1 + txt_size.x - 1
label_dsc.color = lv.color_black()
txt_area.y1 = dsc.draw_area.y1 + (dsc.draw_area.get_height() -
txt_size.y) // 2
txt_area.y2 = txt_area.y1 + txt_size.y - 1
lv.draw_label(txt_area, dsc.clip_area, label_dsc, value_txt, None)
def add_tile(self, x, y, id):
self.log.debug("add tile no %d: x: %d y: %d, id= %s" %
(self.tile_entries, x, y, id))
self.tile_entries += 1
new_tile = Tile()
new_tile.tile = lv.cont(self.mainbar, None)
hor_res = lv.scr_act().get_disp().driver.hor_res
ver_res = lv.scr_act().get_disp().driver.ver_res
new_tile.tile.set_width(hor_res)
new_tile.tile.set_height(ver_res)
new_tile.tile.set_pos(hor_res * x, ver_res * y)
new_tile.tile.add_style(lv.obj.PART.MAIN, self.mainbar_style)
new_tile.x = x
new_tile.y = y
new_tile.id = id
self.tile_table.append(new_tile)
self.mainbar.add_element(new_tile.tile)
new_pos = lv.point_t()
new_pos.x = x
new_pos.y = y
self.tile_pos_table.append(new_pos)
self.tile_table[self.tile_entries - 1].tile.add_style(
lv.obj.PART.MAIN, self.mainbar_style)
self.tile_table[self.tile_entries - 1].tile.set_pos(
self.tile_pos_table[self.tile_entries - 1].x *
lv.scr_act().get_disp().driver.hor_res,
self.tile_pos_table[self.tile_entries - 1].y *
lv.scr_act().get_disp().driver.ver_res)
self.mainbar.set_valid_positions(self.tile_pos_table,
self.tile_entries)
return (self.tile_entries - 1)
def read_cb(drv, ptr):
# print(ptr, b)
data = lv.indev_data_t.cast(ptr)
TOUCH.event()
# print(TOUCH.state, TOUCH.points)
data.point = lv.point_t({'x': TOUCH.points[1][0], 'y': TOUCH.points[1][1]})
data.state = lv.INDEV_STATE.PR if TOUCH.state == 1 else lv.INDEV_STATE.REL
return False
def drag_event_handler(e):
self = e.get_target()
indev = lv.indev_get_act()
vect = lv.point_t()
indev.get_vect(vect)
x = self.get_x() + vect.x
y = self.get_y() + vect.y
self.set_pos(x, y)
def drag_event_handler(e):
obj = e.get_target()
indev = lv.indev_get_act()
vect = lv.point_t()
indev.get_vect(vect)
x = obj.get_x() + vect.x
y = obj.get_y() + vect.y
obj.set_pos(x, y)
def feed_touch():
point = lv.point_t()
indev = lv.indev_get_act()
lv.indev_get_point(indev, point)
# now we can take bytes([point.x % 256, point.y % 256])
# and feed it into hash digest
t = time.ticks_cpu()
random_data = t.to_bytes(4,'big') + bytes([point.x % 256, point.y % 256])
rng.feed(random_data)
def table_event_cb(e):
row = lv.point_t()
col = lv.point_t()
lv.table.get_selected_cell(table, row, col)
print("row :" + str(row.x))
print("col :" + str(col.x))
print("value :" + table.get_cell_value(row.x, col.x))
key = str(table.get_cell_value(row.x, col.x))
'''only show msgbox when column 0 is selected'''
if col.x == 0:
msb_edit_table(key)
global tabledata
tabledata = e
return tabledata
def __init__(self,
sda=21,
scl=22,
freq=400000,
width=-1,
height=-1,
inv_x=False,
inv_y=False,
swap_xy=False):
if not lv.is_initialized():
lv.init()
self.width, self.height = width, height
self.inv_x, self.inv_y, self.swap_xy = inv_x, inv_y, swap_xy
self.touch = ft6336u(sda=Pin(sda), scl=Pin(scl), freq=freq)
try:
status = self.touch.check()
print("FT6X36 touch IC ready (fw id 0x{0:X} rel {1:d}, lib {2:X})".format( \
status[0], \
status[1], \
status[2] \
))
except:
print("FT6X36 touch IC not responding")
return
self.point = lv.point_t({'x': 0, 'y': 0})
self.points = [
lv.point_t({
'x': 0,
'y': 0
}), lv.point_t({
'x': 0,
'y': 0
})
]
self.state = lv.INDEV_STATE.RELEASED
self.indev_drv = lv.indev_drv_t()
self.indev_drv.init()
self.indev_drv.type = lv.INDEV_TYPE.POINTER
self.indev_drv.read_cb = self.callback
self.indev_drv.register()
def test():
"""Test code."""
cbuf = bytearray(CANVAS_WIDTH * CANVAS_HEIGHT * 4)
# create a canvas
canvas = lv.canvas(lv.scr_act(), None)
canvas.set_buffer(cbuf, CANVAS_WIDTH, CANVAS_HEIGHT, lv.img.CF.TRUE_COLOR)
canvas.align(None, lv.ALIGN.CENTER, 0, 0)
p1 = lv.point_t()
p2 = lv.point_t()
point_array = [p1, p2]
p2.x = CENTER_X
p2.y = CENTER_Y
line_dsc = lv.draw_line_dsc_t()
line_dsc.init()
line_dsc.opa = lv.OPA.COVER
x, y = 0, 0
angle = 0.0
# Loop all angles from 0 to 2 * PI radians
while angle < PI2:
# Calculate x, y from a vector with known length and angle
x = int(CENTER_Y * sin(angle) + HALF_WIDTH)
y = int(CENTER_Y * cos(angle) + HALF_HEIGHT)
color = LV_COLOR_MAKE(*hsv_to_rgb(angle / PI2, 1, 1))
line_dsc.color = color
p1.x = x
p1.y = y
canvas.draw_line(point_array, 2, line_dsc)
angle += ANGLE_STEP_SIZE
sleep(5)
clear(canvas)
line_dsc.width = 3
for r in range(CENTER_Y, 0, -1):
line_dsc.color = LV_COLOR_MAKE(*hsv_to_rgb(r / HALF_HEIGHT, 1, 1))
canvas.draw_arc(CENTER_X, CENTER_Y, r, 0, 360, line_dsc)
sleep(5)
def on_word_click(self, obj, evt):
if evt != lv.EVENT.RELEASED:
return
# get coordinates
point = lv.point_t()
indev = lv.indev_get_act()
lv.indev_get_point(indev, point)
# get offsets
dx = point.x - obj.get_x()
dy = point.y - obj.get_y()
# get index
idx = 12*int(dx > obj.get_width()//2) + int(12*dy/obj.get_height())
self.change_word(idx)
def feed_touch():
"""
Gets a point from the touchscreen
and feeds it to random number pool
"""
point = lv.point_t()
indev = lv.indev_get_act()
lv.indev_get_point(indev, point)
# now we can take bytes([point.x % 256, point.y % 256])
# and feed it into hash digest
t = time.ticks_cpu()
random_data = t.to_bytes(4, 'big') + bytes([point.x % 256, point.y % 256])
rng.feed(random_data)
def cb(self, obj, event):
if event == lv.EVENT.PRESSING:
feed_touch()
c = obj.get_active_btn_text()
if c is not None and len(c)<=2:
self.hint.set_hidden(False)
self.hint_lbl.set_text(c)
point = lv.point_t()
indev = lv.indev_get_act()
lv.indev_get_point(indev, point)
self.hint.set_pos(point.x-25, point.y-130)
elif event == lv.EVENT.RELEASED:
self.hint.set_hidden(True)
if self.callback is not None:
self.callback(obj, event)
def cb(obj, event):
if event == lv.EVENT.PRESSING:
c = obj.get_active_btn_text()
if c is None:
return
if len(c)>2:
key_hint.set_hidden(True)
return
key_hint.set_hidden(False)
key_lbl.set_text(c)
point = lv.point_t()
indev = lv.indev_get_act()
lv.indev_get_point(indev, point)
key_hint.set_pos(point.x-25, point.y-130)
elif event == lv.EVENT.RELEASED:
key_hint.set_hidden(True)
c = obj.get_active_btn_text()
if c is None:
return
if c[0] == lv.SYMBOL.LEFT:
ta.del_char()
elif c == lv.SYMBOL.UP or c == lv.SYMBOL.DOWN:
for i,ch in enumerate(CHARSET):
if ch.isalpha():
if c == lv.SYMBOL.UP:
CHARSET[i] = CHARSET[i].upper()
else:
CHARSET[i] = CHARSET[i].lower()
elif ch == lv.SYMBOL.UP:
CHARSET[i] = lv.SYMBOL.DOWN
elif ch == lv.SYMBOL.DOWN:
CHARSET[i] = lv.SYMBOL.UP
btnm.set_map(CHARSET)
elif c == "#@":
btnm.set_map(CHARSET_EXTRA)
elif c == "aA":
btnm.set_map(CHARSET)
elif c[0] == lv.SYMBOL.CLOSE:
ta.set_text("")
elif c[0] == lv.SYMBOL.OK:
cb_continue(ta.get_text())
ta.set_text("")
else:
ta.add_text(c)
def __init__(self, points, calibrate, touch_count=5):
self.points = points
self.calibrate = calibrate
self.touch_count = touch_count
self.med = [lv.point_t() for i in range(0, self.touch_count)
] # Storage point to calculate median
self.cur_point = 0
self.cur_touch = 0
self.scr = lv.obj(None)
self.scr.set_size(TP_MAX_VALUE, TP_MAX_VALUE)
lv.scr_load(self.scr)
# Create a big transparent button screen to receive clicks
style_transp = lv.style_t()
style_transp.init()
style_transp.set_bg_opa(lv.OPA.TRANSP)
self.big_btn = lv.btn(lv.scr_act())
self.big_btn.set_size(TP_MAX_VALUE, TP_MAX_VALUE)
self.big_btn.add_style(style_transp, lv.PART.MAIN)
self.big_btn.add_style(style_transp, lv.PART.MAIN)
#self.big_btn.set_layout(lv.LAYOUT.OFF)
self.big_btn.add_event_cb(
lambda event, self=self: self.calibrate_clicked(),
lv.EVENT.CLICKED,
None)
# Create the screen, circle and label
self.label_main = lv.label(lv.scr_act())
style_circ = lv.style_t()
style_circ.init()
style_circ.set_radius(LV_RADIUS_CIRCLE)
self.circ_area = lv.obj(lv.scr_act())
self.circ_area.set_size(CIRCLE_SIZE, CIRCLE_SIZE)
self.circ_area.add_style(style_circ, lv.STATE.DEFAULT)
self.circ_area.clear_flag(
lv.obj.FLAG.CLICKABLE) # self.circ_area.set_click(False)
self.show_circle()