Introdução
O script a seguir dynamic_mouse_speed.py permite especificar qual ponteiro do mouse ponteiro e / ou rolar a velocidade deve ser quando a janela definida pelo usuário tiver foco.
Importante : o script exige que o programa imwheel aumente a velocidade de rolagem. Por favor instale via sudo apt-get install imwheel
Uso
Como mostrado por -h flag:
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
O script permite ao usuário selecionar a janela que deseja acompanhar com o clique do mouse. O ponteiro do mouse se transformará em cruz e o usuário poderá selecionar uma janela que desejar.
A execução de python3 dynamic_mouse_speed.py sozinho mostra apenas a caixa de diálogo pop-up e não faz nada por si só.
A execução de python3 dynamic_mouse_speed.py -s 5 aumenta a velocidade de rolagem, enquanto python3 dynamic_mouse_speed.py -s -5 diminui a velocidade de rolagem. python3 dynamic_mouse_speed.py -p -0.9 diminui a velocidade do ponteiro, enquanto python3 dynamic_mouse_speed.py -p 0.9 aumenta a velocidade do ponteiro. As opções -s e -p podem ser misturadas. -v produz informações de depuração na linha de comando.
Fonte
Também disponível 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
- várias instâncias do script permitem definir a velocidade para cada janela separada.
- Ao executar a partir da linha de comandos, as caixas de diálogo pop-up geram a seguinte mensagem:
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.Elas podem ser ignoradas. - Consultar Como posso editar / criar novos itens de iniciador no Unity manualmente? para criar um atalho ou atalho na área de trabalho para este script, se você deseja iniciá-lo com um clique duplo
- Para vincular esse script a um atalho de teclado para facilitar o acesso, consulte Como adicionar atalhos de teclado?
- Recomenda-se usar apenas um mouse quando o script estiver em execução, pois ele opera no primeiro dispositivo que possui
Evdev Scrolling Distanceproperty - Várias instâncias podem ser iniciadas para controlar várias janelas, mas isso não é recomendado para fins de desempenho