mirror of https://github.com/ralsina/xrandroll.git
235 lines
8.1 KiB
Python
235 lines
8.1 KiB
Python
from copy import deepcopy
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import subprocess
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import sys
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from PySide2.QtCore import QFile, QObject, Slot
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from PySide2.QtUiTools import QUiLoader
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from PySide2.QtWidgets import QApplication, QGraphicsScene
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from monitor_item import MonitorItem
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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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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 = [int(n) for n in mon['current_mode'].split('x')]
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cli.append(f'--scale {mon["res_x"]/mod_x}x{mon["res_y"]/mod_y}')
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if mon['primary']:
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cli.append('--primary')
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if not mon['enabled']:
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cli.append('--off')
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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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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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)
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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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)
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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.screenCombo.currentTextChanged.connect(self.monitor_selected)
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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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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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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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# mon_item.setPos(monitor["pos_x"], monitor["pos_y"])
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self.scene.addItem(mon_item)
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monitor["item"] = mon_item
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self.adjust_view()
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self.scale_changed() # Trigger scale labels update
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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 = mode.split('x')
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# use resolution via scaling
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self.xrandr_info[mon]['res_x'] = int(int(mode_x) * self.ui.horizontalScale.value() / 100)
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self.xrandr_info[mon]['res_y'] = int(int(mode_y) * self.ui.verticalScale.value() / 100)
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self.xrandr_info[mon]['item'].update_visuals(self.xrandr_info[mon])
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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 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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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 line and line[0] not in "S \t": # 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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) = 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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)
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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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self.ui.modes.setCurrentText(self.xrandr_info[name]["current_mode"])
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mod_x, mod_y = [
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int(x) for x in self.xrandr_info[name]["current_mode"].split("x")
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]
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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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self.ui.horizontalScale.setValue(h_scale * 100)
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self.ui.verticalScale.setValue(v_scale * 100)
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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.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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def scale_changed(self):
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self.ui.horizontalScaleLabel.setText(f"{self.ui.horizontalScale.value()}%")
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self.ui.verticalScaleLabel.setText(f"{self.ui.verticalScale.value()}%")
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self.mode_changed() # Not really, but it's the same thing
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if __name__ == "__main__":
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app = QApplication(sys.argv)
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ui_file = QFile("main.ui")
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ui_file.open(QFile.ReadOnly)
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loader = QUiLoader()
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window = Window(loader.load(ui_file))
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sys.exit(app.exec_())
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