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Diffstat (limited to '')
| -rw-r--r-- | src/monitor.py | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/src/monitor.py b/src/monitor.py index 6d6349f..33397ff 100644 --- a/src/monitor.py +++ b/src/monitor.py @@ -512,42 +512,65 @@ def list_screens_randr(): @return :Screens An instance of a datastructure with the relevant information ''' + # Spawn the executeable library blueshift_idcrtc process = Popen([LIBEXECDIR + os.sep + 'blueshift_idcrtc'], stdout = PIPE) + # Wait for the child process to exit and gather its output to stdout lines = process.communicate()[0].decode('utf-8', 'error').split('\n') + # Ensure that the child process has exited while process.returncode is None: process.wait() + # Raise an exception if the child process failed if process.returncode != 0: raise Exception('blueshift_idcrtc exited with value %i' % process.returncode) + # Trim the beginning of each line, that is, remove the + # indention added for human readablility lines = [line.strip() for line in lines] screens, screen_i, screen, output = None, None, None, None for line in lines: if line.startswith('Screen count: '): + # Prepare the screen table when we know how many screens there are screens = [None] * int(line[len('Screen count: '):]) elif line.startswith('Screen: '): + # Get the index of the next screen screen_i = int(line[len('Screen: '):]) - screen = Screen() - screens[screen_i] = screen + # And add it to the table + screens[screen_i] = screen = Screen() elif line.startswith('CRTC count: '): + # Store the number of CRTC:s screen.crtc_count = int(line[len('CRTC count: '):]) elif line.startswith('Output count: '): + # Prepare the current screens output table when we know how many outputs it has screen.outputs = [None] * int(line[len('Output count: '):]) elif line.startswith('Output: '): + # Get the index of the next output output_i = int(line[len('Output: '):]) + # Create structure for the output output = Output() + # Store the screen index for the output so that it is easy + # to look it up when iterating over outputs output.screen = screen_i + # Store the output in the table screen.outputs[output_i] = output elif line.startswith('Name: '): + # Store the name of the output output.name = line[len('Name: '):] elif line.startswith('Connection: '): + # Store the connection status of the output's connector output.connected = line[len('Connection: '):] == 'connected' elif line.startswith('Size: '): + # Store the physical dimensions of the monitor output.widthmm, output.heightmm = [int(x) for x in line[len('Size: '):].split(' ')] + # But if it is zero or less it is unknown if (output.widthmm <= 0) or (output.heightmm <= 0): output.widthmm, output.heightmm = None, None elif line.startswith('CRTC: '): + # Store the CRTC index of the output output.crtc = int(line[len('CRTC: '):]) elif line.startswith('EDID: '): + # Store the output's extended dislay identification data output.edid = line[len('EDID: '):] + # Store all screens in a special class that + # makes it easier to use them collectively rc = Screens() rc.screens = screens return rc |