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Code Issues Releases Wiki Activity

trezor.ui: fading on swipe up

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This commit is contained in:
Peter Jensen 2017-03-30 17:35:15 +02:00
parent 5e69cbe69f
commit 3daa18a5f1
3 changed files with 50 additions and 28 deletions
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4
src/apps/homescreen/homescreen.py
View File

@ -10,14 +10,10 @@ async def swipe_to_rotate():
async def dim_screen():
original = ui.display.backlight()
try:
await loop.Sleep(5 * 1000000)
await ui.backlight_slide(ui.BACKLIGHT_DIM)
while True:
await loop.Sleep(1000000)
finally:
ui.display.backlight(original)
def display_homescreen():

4
src/trezor/ui/__init__.py
View File

@ -58,8 +58,12 @@ BTN_RADIUS = const(2)
BACKLIGHT_NORMAL = const(60)
BACKLIGHT_DIM = const(5)
BACKLIGHT_NONE = const(2)
BACKLIGHT_MAX = const(255)
# display width and height
SCREEN = const(240)
# icons
ICON_RESET = 'trezor/res/header_icons/reset.toig'
ICON_WIPE = 'trezor/res/header_icons/wipe.toig'

54
src/trezor/ui/swipe.py
View File

@ -1,9 +1,8 @@
import utime
from micropython import const
from trezor import loop
from trezor import loop, ui
from . import in_area, rotate_coords
_SWIPE_DISTANCE_THRESHOLD = const(20) # Min pixels in the primary direction
_SWIPE_VELOCITY_THRESHOLD = const(200) # Min pixels per second
_SWIPE_RATIO_THRESHOLD = const(30) # Max ratio or directions in %
@ -15,31 +14,53 @@ SWIPE_RIGHT = const(270)
class Swipe():
def __init__(self, area=None, absolute=False):
self.area = area or (0, 0, 240, 240)
self.area = area or (0, 0, ui.SCREEN, ui.SCREEN)
self.absolute = absolute
self.start_pos = None
self.start_time = 0
self.end_pos = None
self.end_time = 0
self.light_origin = None
self.light_target = ui.BACKLIGHT_NONE
def send(self, event, pos):
if not self.absolute:
pos = rotate_coords(pos)
if event == loop.TOUCH_START and in_area(pos, self.area):
# TODO: do not use floats here
self.start_time = utime.ticks_ms() / 1000
temp_time = utime.ticks_ms() / 1000
# primary now for fading purposes
if event == loop.TOUCH_MOVE and self.start_pos is not None:
pdx = pos[0] - self.start_pos[0]
pdy = pos[1] - self.start_pos[1]
td = temp_time - self.start_time
pdxa = abs(pdx)
pdya = abs(pdy)
if pdxa < pdya and pdy < 0:
# check if its vertical scroll up
velya = abs(pdy / td) if td > 0 else 1
ratio = int(pdxa / pdya * 100) if pdya > 0 else 100
if (velya >= _SWIPE_VELOCITY_THRESHOLD
and pdya >= _SWIPE_DISTANCE_THRESHOLD
and ratio <= _SWIPE_RATIO_THRESHOLD):
light = ui.display.backlight()
if light > self.light_target:
light -= 5
ui.display.backlight(light)
else:
ui.display.backlight(self.light_target)
elif event == loop.TOUCH_START and in_area(pos, self.area):
self.start_time = temp_time
self.start_pos = pos
self.light_origin = ui.BACKLIGHT_NORMAL
ui.display.backlight(self.light_origin)
elif event == loop.TOUCH_END and self.start_pos is not None:
self.end_time = utime.ticks_ms() / 1000
self.end_pos = pos
td = self.end_time - self.start_time
pdx = self.end_pos[0] - self.start_pos[0]
pdy = self.end_pos[1] - self.start_pos[1]
td = temp_time - self.start_time
pdx = pos[0] - self.start_pos[0]
pdy = pos[1] - self.start_pos[1]
pdxa = abs(pdx)
pdya = abs(pdy)
if pdxa > pdya:
@ -57,12 +78,13 @@ class Swipe():
if (velya >= _SWIPE_VELOCITY_THRESHOLD
and pdya >= _SWIPE_DISTANCE_THRESHOLD
and ratio <= _SWIPE_RATIO_THRESHOLD):
if pdy < 0:
ui.display.backlight(self.light_origin)
return SWIPE_DOWN if pdy > 0 else SWIPE_UP
# No swipe, reset the state
self.start_pos = None
self.start_time = 0
self.end_pos = None
self.end_time = 0
ui.display.backlight(self.light_origin)
def __iter__(self):
while True: