mirror of https://github.com/ralsina/xrandroll.git
495 lines
18 KiB
Python
495 lines
18 KiB
Python
import os
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import shlex
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import subprocess
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import sys
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from copy import deepcopy
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from PySide2.QtCore import QFile, QObject
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from PySide2.QtUiTools import QUiLoader
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from PySide2.QtWidgets import QApplication, QGraphicsScene, QLabel
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from .monitor_item import MonitorItem
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from . import xrandr
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def parse_mode(mode):
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return (int(n) for n in mode.split("x"))
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def gen_xrandr_from_data(data):
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"""Takes monitor data and generates a xrandr command line."""
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cli = ["xrandr"]
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for name, mon in data.items():
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cli.append(f"--output {name}")
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if not mon["enabled"]:
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cli.append("--off")
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else:
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cli.append(f'--pos {int(mon["pos_x"])}x{int(mon["pos_y"])}')
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cli.append(f'--mode {mon["current_mode"]}')
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mod_x, mod_y = parse_mode(mon["current_mode"])
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if mon["orientation"] in (1, 3):
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mod_x, mod_y = mod_y, mod_x
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cli.append(f'--scale {mon["res_x"]/mod_x}x{mon["res_y"]/mod_y}')
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cli.append(
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f"--rotate {['normal', 'left', 'inverted', 'right'][mon['orientation']]}"
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)
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if mon["primary"]:
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cli.append("--primary")
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return " ".join(cli)
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def parse_monitor(line):
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parts = line.split()
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name = parts[0]
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primary = "primary" in parts
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if "+" in line: # Is enabled
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enabled = True
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res_x, res_y = [p for p in parts if "x" in p][0].split("+")[0].split("x")
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pos_x, pos_y = [p for p in parts if "x" in p][0].split("+")[1:]
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w_in_mm, h_in_mm = [p.split("mm")[0] for p in parts if p.endswith("mm")]
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else:
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enabled = False
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res_x = res_y = pos_x = pos_y = w_in_mm = h_in_mm = 0
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left_side = line.split(" (normal left inverted ")[0]
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orientation = 0
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if "left" in left_side:
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orientation = 1
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elif "inverted" in left_side:
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orientation = 2
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elif "right" in left_side:
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orientation = 3
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return (
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name,
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primary,
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int(res_x),
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int(res_y),
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int(w_in_mm),
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int(h_in_mm),
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int(pos_x),
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int(pos_y),
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enabled,
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orientation,
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)
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def is_replica_of(a, b):
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"""Return True if monitor a is a replica of b.
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Replica means same resolution and position.
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"""
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return (
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a["pos_x"] == b["pos_x"]
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and a["pos_y"] == b["pos_y"]
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and a["res_x"] == b["res_x"]
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and a["res_y"] == b["res_y"]
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and b["enabled"]
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)
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class Window(QObject):
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def __init__(self, ui):
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super().__init__()
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self.ui = ui
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ui.show()
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self.ui.setWindowTitle("Display Configuration")
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self.ui.screenCombo.currentTextChanged.connect(self.monitor_selected)
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self.ui.replicaOf.currentTextChanged.connect(self.replica_changed)
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self.ui.orientationCombo.currentIndexChanged.connect(self.orientation_changed)
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self.xrandr_info = {}
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self.get_xrandr_info()
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self.orig_xrandr_info = deepcopy(self.xrandr_info)
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self.fill_ui()
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self.ui.horizontalScale.valueChanged.connect(self.scale_changed)
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self.ui.verticalScale.valueChanged.connect(self.scale_changed)
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self.ui.modes.currentTextChanged.connect(self.mode_changed)
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self.ui.applyButton.clicked.connect(self.do_apply)
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self.ui.okButton.clicked.connect(self.do_ok)
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self.ui.resetButton.clicked.connect(self.do_reset)
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self.ui.cancelButton.clicked.connect(self.ui.reject)
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self.ui.scaleModeCombo.currentTextChanged.connect(self.scale_mode_changed)
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self.ui.primary.stateChanged.connect(self.primary_changed)
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self.ui.enabled.stateChanged.connect(self.enabled_changed)
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self.pos_label = QLabel(self.ui.sceneView)
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self.pos_label.move(5, 5)
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def enabled_changed(self):
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mon = self.ui.screenCombo.currentText()
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enabled = self.ui.enabled.isChecked()
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print(f"Setting {mon} enabled status to {enabled}")
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monitor = self.xrandr_info[mon]
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monitor["enabled"] = enabled
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if enabled and not monitor["current_mode"]:
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# Choose a mode
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self.ui.modes.setCurrentIndex(0)
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self.mode_changed()
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self.update_replica_of_data()
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for _, mon in self.xrandr_info.items():
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mon["item"].update_visuals(mon)
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self.adjust_view()
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def primary_changed(self):
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mon = self.ui.screenCombo.currentText()
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primary = self.ui.primary.isChecked()
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# Update visuals on all monitos
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for name, monitor in self.xrandr_info.items():
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if name == mon:
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monitor["primary"] = primary
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else:
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if primary: # There can only be one primary
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monitor["primary"] = False
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monitor["item"].update_visuals(monitor)
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def scale_mode_changed(self):
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mon = self.ui.screenCombo.currentText()
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scale_mode = self.ui.scaleModeCombo.currentText()
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print(f"Set {mon} scale mode to {scale_mode}")
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if scale_mode == "Manual":
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self.ui.horizontalScale.setEnabled(True)
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self.ui.verticalScale.setEnabled(True)
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try:
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self.ui.horizontalScale.valueChanged.disconnect(
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self.ui.verticalScale.setValue
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)
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except RuntimeError: # Not connected
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pass
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elif scale_mode == "Disabled (1x1)":
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self.ui.verticalScale.setEnabled(False)
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self.ui.horizontalScale.setEnabled(False)
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self.ui.horizontalScale.setValue(1000)
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self.ui.verticalScale.setValue(1000)
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try:
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self.ui.horizontalScale.valueChanged.disconnect(
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self.ui.verticalScale.setValue
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)
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except RuntimeError: # Not connected
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pass
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elif scale_mode == "Automatic: physical dimensions":
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# Calculate scale factors so that the logical pixels will be the same
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# size as in the primary window
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if self.ui.primary.isChecked():
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print("Has no effect on primary display.")
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return
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# Find the primary monitor
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primary = [k for k in self.xrandr_info if self.xrandr_info[k]["primary"]]
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if not primary:
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print("Oops, no primary!")
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return
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primary = self.xrandr_info[primary[0]]
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monitor = self.xrandr_info[mon]
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prim_density_x = primary["res_x"] / primary["w_in_mm"]
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prim_density_y = primary["res_y"] / primary["h_in_mm"]
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dens_x = monitor["res_x"] / monitor["w_in_mm"]
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dens_y = monitor["res_y"] / monitor["h_in_mm"]
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try:
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self.ui.horizontalScale.valueChanged.disconnect(
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self.ui.verticalScale.setValue
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)
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except RuntimeError: # Not connected
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pass
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self.ui.horizontalScale.setEnabled(False)
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self.ui.verticalScale.setEnabled(False)
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self.ui.horizontalScale.setValue(prim_density_x / dens_x * 1000)
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self.ui.verticalScale.setValue(prim_density_y / dens_y * 1000)
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elif scale_mode == "Manual, same in both dimensions":
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self.ui.horizontalScale.setEnabled(True)
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self.ui.verticalScale.setEnabled(False)
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self.ui.horizontalScale.valueChanged.connect(self.ui.verticalScale.setValue)
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self.ui.verticalScale.setValue(self.ui.horizontalScale.value())
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def replica_changed(self):
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mon = self.ui.screenCombo.currentText()
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replicate = self.ui.replicaOf.currentText()
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print(f"Making {mon} a replica of {replicate}")
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if replicate in ("None", "", None):
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print("TODO: make things non-replicas")
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return
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mon = self.xrandr_info[mon]
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replicate = self.xrandr_info[replicate]
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# Making a replica implies:
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# Set the same position
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mon["pos_x"] = replicate["pos_x"]
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mon["pos_y"] = replicate["pos_y"]
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# Set the same mode if possible
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if replicate["current_mode"] in mon["modes"]:
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mon["current_mode"] = replicate["current_mode"]
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else:
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# Keep the current mode, and change scaling so it
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# has the same effective size as the desired mode
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mod_x, mod_y = parse_mode(mon["current_mode"])
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target_x, target_y = [replicate[x] for x in ["res_x", "res_y"]]
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scale_x = 1000 * target_x / mod_x
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scale_y = 1000 * target_y / mod_y
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self.ui.horizontalScale.setValue(scale_x)
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self.ui.verticalScale.setValue(scale_y)
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self.update_replica_of_data()
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for _, mon in self.xrandr_info.items():
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mon["item"].update_visuals(mon)
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def do_reset(self):
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for n in self.xrandr_info:
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self.xrandr_info[n].update(self.orig_xrandr_info[n])
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self.fill_ui()
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def do_ok(self):
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self.do_apply()
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self.ui.accept()
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def do_apply(self):
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cli = gen_xrandr_from_data(self.xrandr_info)
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print(cli)
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subprocess.check_call(shlex.split(cli))
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def fill_ui(self):
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"""Load data from xrandr and setup the whole thing."""
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self.scene = QGraphicsScene(self)
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self.ui.sceneView.setScene(self.scene)
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self.ui.screenCombo.clear()
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for name, monitor in self.xrandr_info.items():
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self.ui.screenCombo.addItem(name)
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mon_item = MonitorItem(data=monitor, window=self, name=name,)
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self.scene.addItem(mon_item)
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monitor["item"] = mon_item
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self.ui.screenCombo.setCurrentText(self.choose_a_monitor())
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self.adjust_view()
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self.scale_changed() # Trigger scale labels update
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def detect_scale_mode(self, monitor):
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"""Given a monitor's data, try to guess what scaling
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mode it's using.
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TODO: detect "Automatic: physical dimensions"
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"""
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if not monitor["current_mode"]: # Disabled, whatever
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return None
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mod_x, mod_y = parse_mode(monitor["current_mode"])
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scale_x = monitor["res_x"] / mod_x
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scale_y = monitor["res_y"] / mod_y
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if 1 == scale_x == scale_y:
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print("Scale mode looks like 1x1")
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return "Disabled (1x1)"
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elif scale_x == scale_y:
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print("Looks like Manual, same in both dimensions")
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return "Manual, same in both dimensions"
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else:
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return "Manual"
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def choose_a_monitor(self):
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"""Choose what monitor to select by default.
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* Not disabled
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* Primary, if possible
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"""
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candidate = None
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for name, mon in self.xrandr_info.items():
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if not mon["enabled"]:
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continue
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if mon["primary"]:
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return name
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candidate = name
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return candidate
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def orientation_changed(self):
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mon = self.ui.screenCombo.currentText()
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orientation = self.ui.orientationCombo.currentIndex()
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self.xrandr_info[mon]["orientation"] = orientation
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self.mode_changed()
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def mode_changed(self):
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mon = self.ui.screenCombo.currentText()
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mode = self.ui.modes.currentText()
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if not mode:
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return
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print(f"Changing {mon} to {mode}")
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self.xrandr_info[mon]["current_mode"] = mode
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mode_x, mode_y = parse_mode(mode)
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# use resolution via scaling
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if self.xrandr_info[mon]["orientation"] in (0, 2):
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self.xrandr_info[mon]["res_x"] = int(
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mode_x * self.ui.horizontalScale.value() / 1000
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)
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self.xrandr_info[mon]["res_y"] = int(
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mode_y * self.ui.verticalScale.value() / 1000
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)
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else:
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self.xrandr_info[mon]["res_x"] = int(
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mode_y * self.ui.horizontalScale.value() / 1000
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)
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self.xrandr_info[mon]["res_y"] = int(
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mode_x * self.ui.verticalScale.value() / 1000
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)
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self.xrandr_info[mon]["item"].update_visuals(self.xrandr_info[mon])
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def show_pos(self, x, y):
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self.pos_label.setText(f"{x},{y}")
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self.pos_label.resize(self.pos_label.sizeHint())
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def monitor_moved(self):
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"Update xrandr_info with new monitor positions"
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for _, mon in self.xrandr_info.items():
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item = mon["item"]
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mon["pos_x"] = item.x()
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mon["pos_y"] = item.y()
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self.update_replica_of_data()
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for _, mon in self.xrandr_info.items():
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mon["item"].update_visuals(mon)
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self.adjust_view()
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def possible_snaps(self, name):
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"""Return two lists of values to which the x and y position
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of monitor "name" could snap to."""
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snaps_x = []
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snaps_y = []
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for monitor, data in self.xrandr_info.items():
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if monitor == name:
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continue
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else:
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mod_x, mod_y = parse_mode(data["current_mode"])
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snaps_x.append(data["pos_x"])
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snaps_x.append(data["pos_x"] + mod_x)
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snaps_y.append(data["pos_y"])
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snaps_y.append(data["pos_y"] + mod_y)
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return snaps_x, snaps_y
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def adjust_view(self):
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self.ui.sceneView.resetTransform()
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self.ui.sceneView.ensureVisible(self.scene.sceneRect(), 100, 100)
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scale_factor = 0.8 * min(
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self.ui.sceneView.width() / self.scene.sceneRect().width(),
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self.ui.sceneView.height() / self.scene.sceneRect().height(),
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)
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self.ui.sceneView.scale(scale_factor, scale_factor)
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def get_xrandr_info(self):
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self.screen = xrandr.parse_data(xrandr.read_data())
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self.screen.update_replica_of()
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data = subprocess.check_output(["xrandr"]).decode("utf-8").splitlines()
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name = None
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for line in data:
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if (
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line and line[0] not in "S \t" and "disconnected" not in line
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): # Output line
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(
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name,
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primary,
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res_x,
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res_y,
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w_in_mm,
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h_in_mm,
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pos_x,
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pos_y,
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enabled,
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orientation,
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) = parse_monitor(line)
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self.xrandr_info[name] = dict(
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primary=primary,
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res_x=res_x,
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res_y=res_y,
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w_in_mm=w_in_mm,
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h_in_mm=h_in_mm,
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pos_x=pos_x,
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pos_y=pos_y,
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modes=[],
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current_mode=None,
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enabled=enabled,
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replica_of=[],
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orientation=orientation,
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)
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elif line[0] == " ": # A mode
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mode_name = line.strip().split()[0]
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self.xrandr_info[name]["modes"].append(mode_name)
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if "*" in line:
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print(f"Current mode for {name}: {mode_name}")
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self.xrandr_info[name]["current_mode"] = mode_name
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self.update_replica_of_data()
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def update_replica_of_data(self):
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for a in self.xrandr_info:
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self.xrandr_info[a]["replica_of"] = []
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for b in self.xrandr_info:
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if a != b and is_replica_of(self.xrandr_info[a], self.xrandr_info[b]):
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self.xrandr_info[a]["replica_of"].append(b)
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def monitor_selected(self, name):
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if not name:
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return
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# needed so we don't flip through all modes as they are added
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self.ui.modes.blockSignals(True)
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# Show modes
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self.ui.modes.clear()
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for mode in self.xrandr_info[name]["modes"]:
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self.ui.modes.addItem(mode)
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if (
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self.xrandr_info[name]["current_mode"] is None
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): # Happens with turned off monitors
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self.xrandr_info[name]["enabled"] = False
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h_scale = v_scale = 1
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else:
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self.ui.modes.setCurrentText(self.xrandr_info[name]["current_mode"])
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mod_x, mod_y = parse_mode(self.xrandr_info[name]["current_mode"])
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if self.xrandr_info[name]["orientation"] in (0, 2):
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h_scale = self.xrandr_info[name]["res_x"] / mod_x
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v_scale = self.xrandr_info[name]["res_y"] / mod_y
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else:
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h_scale = self.xrandr_info[name]["res_y"] / mod_x
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v_scale = self.xrandr_info[name]["res_x"] / mod_y
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self.ui.horizontalScale.setValue(h_scale * 1000)
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self.ui.verticalScale.setValue(v_scale * 1000)
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self.ui.primary.setChecked(self.xrandr_info[name]["primary"])
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self.ui.enabled.setChecked(self.xrandr_info[name]["enabled"])
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self.ui.orientationCombo.setCurrentIndex(self.xrandr_info[name]["orientation"])
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self.ui.replicaOf.clear()
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self.ui.replicaOf.addItem("None")
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for mon in self.xrandr_info:
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if mon != name:
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self.ui.replicaOf.addItem(mon)
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if mon in self.xrandr_info[name]["replica_of"]:
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self.ui.replicaOf.setCurrentText(mon)
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self.ui.modes.blockSignals(False)
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guessed_scale_mode = self.detect_scale_mode(self.xrandr_info[name])
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self.ui.scaleModeCombo.setCurrentText(guessed_scale_mode)
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self.scale_mode_changed()
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def scale_changed(self):
|
|
self.ui.horizontalScaleLabel.setText(
|
|
f"{int(self.ui.horizontalScale.value()/10)}%"
|
|
)
|
|
self.ui.verticalScaleLabel.setText(f"{int(self.ui.verticalScale.value()/10)}%")
|
|
self.mode_changed() # Not really, but it's the same thing
|
|
|
|
|
|
def main():
|
|
app = QApplication(sys.argv)
|
|
|
|
ui_file = QFile(os.path.join(os.path.dirname(__file__), "main.ui"))
|
|
ui_file.open(QFile.ReadOnly)
|
|
|
|
loader = QUiLoader()
|
|
Window(loader.load(ui_file))
|
|
|
|
sys.exit(app.exec_())
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|