Query resolution and monitors

python/randr.py

@@ -0,0 +1,62 @@
+import subprocess
+
+class Screen:
+    resolutions = []
+    def __init__(self, index):
+        self.index = index
+
+    def add_resolution(self, resolution_str):
+        if 'x' not in resolution_str:
+            return
+
+        xy = resolution_str.split('x')
+
+        if len(xy) != 2:
+            return
+
+        self.resolutions.append(xy)
+
+
+def parse_xrandr(input):
+    lines = input.split('\n')
+    screens = []
+    screen = None
+    index = 0
+
+    for line in lines:
+        components = []
+        spaces = line.split(' ')
+
+        for space in spaces:
+            space = space.strip()
+            if len(space) > 0:
+                components.append(space)
+
+        if len(components) < 2:
+            continue
+
+        if components[0] == 'Screen':
+            screen = Screen(index)
+            screens.append(screen)
+            index += 1
+
+        screen.add_resolution(components[0])
+
+    return screens
+
+def xrandr():
+    cmd = ['/usr/bin/xrandr']
+    proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+    o, e = proc.communicate()
+    return (proc.returncode, o.decode('ascii'), e.decode('ascii'))
+
+result = xrandr()
+screens = parse_xrandr(result[1])
+
+print(f"Number of monitors: {len(screens)}")
+for screen in screens:
+    print(f"Screen #{screen.index}")
+    for resolution in screen.resolutions:
+        print(resolution)
+    print('\n')
+