Introducción
El siguiente script dynamic_mouse_speed.py permite especificar qué puntero del mouse y / o velocidad de desplazamiento debe ser cuando la ventana definida por el usuario tiene el foco.
Importante : el script requiere un imwheelprograma para aumentar la velocidad de desplazamiento. Por favor, instálelo a través desudo apt-get install imwheel
Uso
Como se muestra por -hbandera:
usage: dynamic_mouse_speed.py [-h] [-q] [-p POINTER] [-s SCROLL] [-v]
Sets mouse pointer and scroll speed per window
optional arguments:
-h, --help show this help message and exit
-q, --quiet Blocks GUI dialogs.
-p POINTER, --pointer POINTER
mouse pointer speed,floating point number from -1 to 1
-s SCROLL, --scroll SCROLL
mouse scroll speed,integer value , -10 to 10
recommended
-v, --verbose prints debugging information on command line
El script permite al usuario seleccionar la ventana que desea rastrear con un clic del mouse. El puntero del mouse se convertirá en una cruz y el usuario puede seleccionar la ventana que desee.
Ejecutar python3 dynamic_mouse_speed.pysolo solo muestra un cuadro de diálogo emergente y no hace nada por sí mismo.
Correr python3 dynamic_mouse_speed.py -s 5aumenta la velocidad de desplazamiento, mientras que python3 dynamic_mouse_speed.py -s -5disminuye la velocidad de desplazamiento hacia abajo. python3 dynamic_mouse_speed.py -p -0.9disminuye la velocidad del puntero, mientras que python3 dynamic_mouse_speed.py -p 0.9aumenta la velocidad del puntero. -sy las -popciones se pueden mezclar. -vproduce información de depuración en la línea de comando.
Fuente
También disponible como GitHub Gist
#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Author: Sergiy Kolodyazhnyy
Date: August 2nd, 2016
Written for: https://askubuntu.com/q/806212/295286
Tested on Ubuntu 16.04 LTS
usage: dynamic_mouse_speed.py [-h] [-q] [-p POINTER] [-s SCROLL] [-v]
Sets mouse pointer and scroll speed per window
optional arguments:
-h, --help show this help message and exit
-q, --quiet Blocks GUI dialogs.
-p POINTER, --pointer POINTER
mouse pointer speed,floating point number from -1 to 1
-s SCROLL, --scroll SCROLL
mouse scroll speed,integer value , -10 to 10
recommended
-v, --verbose prints debugging information on command line
"""
from __future__ import print_function
import gi
gi.require_version('Gdk', '3.0')
gi.require_version('Gtk', '3.0')
from gi.repository import Gdk, Gtk,Gio
import time
import subprocess
import sys
import os
import argparse
def run_cmd(cmdlist):
""" Reusable function for running shell commands"""
try:
stdout = subprocess.check_output(cmdlist)
except subprocess.CalledProcessError:
print(">>> subprocess:",cmdlist)
sys.exit(1)
else:
if stdout:
return stdout
def get_user_window():
"""Select two windows via mouse.
Returns integer value of window's id"""
window_id = None
while not window_id:
for line in run_cmd(['xwininfo', '-int']).decode().split('\n'):
if 'Window id:' in line:
window_id = line.split()[3]
return int(window_id)
def gsettings_get(schema,path,key):
"""Get value of gsettings schema"""
if path is None:
gsettings = Gio.Settings.new(schema)
else:
gsettings = Gio.Settings.new_with_path(schema,path)
return gsettings.get_value(key)
def gsettings_set(schema,path,key,value):
"""Set value of gsettings schema"""
if path is None:
gsettings = Gio.Settings.new(schema)
else:
gsettings = Gio.Settings.new_with_path(schema,path)
return gsettings.set_double(key,value)
def parse_args():
""" Parse command line arguments"""
arg_parser = argparse.ArgumentParser(
description="""Sets mouse pointer and scroll """ +
"""speed per window """)
arg_parser.add_argument(
'-q','--quiet', action='store_true',
help='Blocks GUI dialogs.',
required=False)
arg_parser.add_argument(
'-p','--pointer',action='store',
type=float, help=' mouse pointer speed,' +
'floating point number from -1 to 1', required=False)
arg_parser.add_argument(
'-s','--scroll',action='store',
type=int, help=' mouse scroll speed,' +
'integer value , -10 to 10 recommended', required=False)
arg_parser.add_argument(
'-v','--verbose', action='store_true',
help=' prints debugging information on command line',
required=False)
return arg_parser.parse_args()
def get_mouse_id():
""" returns id of the mouse as understood by
xinput command. This works only with one
mouse attatched to the system"""
devs = run_cmd( ['xinput','list','--id-only'] ).decode().strip()
for dev_id in devs.split('\n'):
props = run_cmd( [ 'xinput','list-props', dev_id ] ).decode()
if "Evdev Scrolling Distance" in props:
return dev_id
def write_rcfile(scroll_speed):
""" Writes out user-defined scroll speed
to ~/.imwheelrc file. Necessary for
speed increase"""
number = str(scroll_speed)
user_home = os.path.expanduser('~')
with open( os.path.join(user_home,".imwheelrc") ,'w' ) as rcfile:
rcfile.write( '".*"\n' )
rcfile.write("None, Up, Button4, " + number + "\n" )
rcfile.write("None, Down, Button5, " + number + "\n")
rcfile.write("Control_L, Up, Control_L|Button4 \n" +
"Control_L, Down, Control_L|Button5 \n" +
"Shift_L, Up, Shift_L|Button4 \n" +
"Shift_L, Down, Shift_L|Button5 \n" )
def set_configs(mouse_speed,scroll_speed,mouse_id):
""" sets user-defined values
when the desired window is in focus"""
if mouse_speed:
gsettings_set('org.gnome.desktop.peripherals.mouse',None, 'speed', mouse_speed)
if scroll_speed:
if scroll_speed > 0:
subprocess.call(['killall','imwheel'])
# Is it better to write config here
# or in main ?
write_rcfile(scroll_speed)
subprocess.call(['imwheel'])
else:
prop="Evdev Scrolling Distance"
scroll_speed = str(abs(scroll_speed))
run_cmd(['xinput','set-prop',mouse_id,prop,scroll_speed,'1','1'])
def set_defaults(mouse_speed,scroll_speed,mouse_id):
""" restore values , when user-defined window
looses focus"""
if mouse_speed:
gsettings_set('org.gnome.desktop.peripherals.mouse', None,
'speed', mouse_speed)
if scroll_speed:
if scroll_speed > 0:
subprocess.call(['killall','imwheel'])
if scroll_speed < 0:
prop="Evdev Scrolling Distance"
run_cmd(['xinput','set-prop',mouse_id,prop,'1','1','1'])
def main():
"""Entry point for when program is executed directly"""
args = parse_args()
# Get a default configs
# gsettings returns GVariant, but
# setting same schema and key requires
# floating point number
screen = Gdk.Screen.get_default()
default_pointer_speed = gsettings_get('org.gnome.desktop.peripherals.mouse',
None,
'speed')
default_pointer_speed = float(str(default_pointer_speed))
# Ask user for values , or check if those are provided via command line
if not args.quiet:
text='--text="Select window to track"'
mouse_speed = run_cmd(['zenity','--info',text])
user_window = get_user_window()
scroll_speed = args.scroll
pointer_speed = args.pointer
mouse_id = get_mouse_id()
if pointer_speed:
if pointer_speed > 1 or pointer_speed < -1:
run_cmd(['zenity','--error',
'--text="Value out of range:' +
str(pointer_speed) + '"'])
sys.exit(1)
# ensure that we will raise the user selected window
# and activate all the preferences
flag = True
for window in screen.get_window_stack():
if user_window == window.get_xid():
window.focus(time.time())
window.get_update_area()
try:
while True:
time.sleep(0.25) # Necessary for script to catch active window
if screen.get_active_window().get_xid() == user_window:
if flag:
set_configs(pointer_speed,scroll_speed,mouse_id)
flag=False
else:
if not flag:
set_defaults(default_pointer_speed, scroll_speed,mouse_id)
flag = True
if args.verbose:
print('ACTIVE WINDOW:',str(screen.get_active_window().get_xid()))
print('MOUSE_SPEED:', str(gsettings_get(
'org.gnome.desktop.peripherals.mouse',
None, 'speed')))
print('Mouse ID:',str(mouse_id))
print("----------------------")
except:
print(">>> Exiting main, resetting values")
set_defaults(default_pointer_speed,scroll_speed,mouse_id)
if __name__ == "__main__":
main()
Notas
- Múltiples instancias de script permiten establecer la velocidad por cada ventana separada.
- Cuando se ejecuta desde la línea de comandos, los cuadros de diálogo emergentes generan el siguiente mensaje:
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.Estos pueden ignorarse.
- Consultar ¿Cómo puedo editar / crear nuevos elementos de iniciador en Unity a mano? para crear un iniciador o acceso directo de escritorio para este script, si desea iniciarlo con doble clic
- Para vincular esta secuencia de comandos a un atajo de teclado para un acceso fácil, consulte ¿Cómo agregar atajos de teclado?
- Se recomienda usar solo un mouse cuando la secuencia de comandos se está ejecutando, ya que funciona en el primer dispositivo que tiene
Evdev Scrolling Distancepropiedades
- Se pueden iniciar varias instancias para controlar varias ventanas, pero no se recomienda por razones de rendimiento.