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tools: switch measure-touch-size to python-libevdev

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Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Peter Hutterer 2019-03-15 11:34:15 +10:00
parent 795c08eb44
commit deb759a069
1 changed files with 22 additions and 31 deletions
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53
tools/libinput-measure-touch-size.py
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@ -28,8 +28,7 @@ import sys
import subprocess
import argparse
try:
import evdev
import evdev.ecodes
import libevdev
import pyudev
except ModuleNotFoundError as e:
print('Error: {}'.format(str(e)), file=sys.stderr)
@ -178,32 +177,23 @@ class InvalidDeviceError(Exception):
pass
class Device(object):
class Device(libevdev.Device):
def __init__(self, path):
if path is None:
self.path = self.find_touch_device()
else:
self.path = path
self.device = evdev.InputDevice(self.path)
fd = open(self.path, 'rb')
super().__init__(fd)
print("Using {}: {}\n".format(self.device.name, self.path))
print("Using {}: {}\n".format(self.name, self.path))
# capabilities returns a dict with the EV_* codes as key,
# each of which is a list of tuples of (code, AbsInfo)
#
# Get the abs list first (or empty list if missing),
# then extract the touch major absinfo from that
caps = self.device.capabilities(absinfo=True).get(
evdev.ecodes.EV_ABS, []
)
codes = [cap[0] for cap in caps]
if evdev.ecodes.ABS_MT_TOUCH_MAJOR not in codes:
if not self.has(libevdev.EV_ABS.ABS_MT_TOUCH_MAJOR):
raise InvalidDeviceError("device does not have ABS_MT_TOUCH_MAJOR")
self.has_minor = evdev.ecodes.ABS_MT_TOUCH_MINOR in codes
self.has_orientation = evdev.ecodes.ABS_MT_ORIENTATION in codes
self.has_minor = self.has(libevdev.EV_ABS.ABS_MT_TOUCH_MINOR)
self.has_orientation = self.has(libevdev.EV_ABS.ABS_MT_ORIENTATION)
self.up = 0
self.down = 0
@ -255,16 +245,16 @@ class Device(object):
return self.sequences[-1]
def handle_key(self, event):
tapcodes = [evdev.ecodes.BTN_TOOL_DOUBLETAP,
evdev.ecodes.BTN_TOOL_TRIPLETAP,
evdev.ecodes.BTN_TOOL_QUADTAP,
evdev.ecodes.BTN_TOOL_QUINTTAP]
tapcodes = [libevdev.EV_KEY.BTN_TOOL_DOUBLETAP,
libevdev.EV_KEY.BTN_TOOL_TRIPLETAP,
libevdev.EV_KEY.BTN_TOOL_QUADTAP,
libevdev.EV_KEY.BTN_TOOL_QUINTTAP]
if event.code in tapcodes and event.value > 0:
print("\rThis tool cannot handle multiple fingers, "
"output will be invalid", file=sys.stderr)
def handle_abs(self, event):
if event.code == evdev.ecodes.ABS_MT_TRACKING_ID:
if event.matches(libevdev.EV_ABS.ABS_MT_TRACKING_ID):
if event.value > -1:
self.start_new_sequence(event.value)
else:
@ -275,11 +265,11 @@ class Device(object):
except IndexError:
# If the finger was down during start
pass
elif event.code == evdev.ecodes.ABS_MT_TOUCH_MAJOR:
elif event.matches(libevdev.EV_ABS.ABS_MT_TOUCH_MAJOR):
self.touch.major = event.value
elif event.code == evdev.ecodes.ABS_MT_TOUCH_MINOR:
elif event.matches(libevdev.EV_ABS.ABS_MT_TOUCH_MINOR):
self.touch.minor = event.value
elif event.code == evdev.ecodes.ABS_MT_ORIENTATION:
elif event.matches(libevdev.EV_ABS.ABS_MT_ORIENTATION):
self.touch.orientation = event.value
def handle_syn(self, event):
@ -294,11 +284,11 @@ class Device(object):
pass
def handle_event(self, event):
if event.type == evdev.ecodes.EV_ABS:
if event.matches(libevdev.EV_ABS):
self.handle_abs(event)
elif event.type == evdev.ecodes.EV_KEY:
elif event.matches(libevdev.EV_KEY):
self.handle_key(event)
elif event.type == evdev.ecodes.EV_SYN:
elif event.matches(libevdev.EV_SYN):
self.handle_syn(event)
def read_events(self):
@ -309,8 +299,9 @@ class Device(object):
print("Place a single finger on the device to measure touch size.\n"
"Ctrl+C to exit\n")
for event in self.device.read_loop():
self.handle_event(event)
while True:
for event in self.events():
self.handle_event(event)
def colon_tuple(string):