]> oss.titaniummirror.com Git - dispcfg.git/blobdiff - xrandr_configure_outputs.py
To LVDS and back to dualext
[dispcfg.git] / xrandr_configure_outputs.py
index d03e9b551556c264a90bdcbbd0f4c436de432caf..40a3ff27134cb73ddea50ce3cddf053ee5a5d5c9 100644 (file)
@@ -36,7 +36,8 @@ class OutputInfo():
         if self.complete():
             return {'name':self.name, 'enabled':self.enabled,
                     'connected':self.connected, 'width':self.width,
-                    'height':self.height, 'posx':self.posx, 'posy':self.posy}
+                    'height':self.height, 'posx':self.posx, 'posy':self.posy,
+                    'use':False, 'done':False}
         else:
             raise ValueError
 
@@ -120,93 +121,70 @@ if __name__ == '__main__':
             print_output(output)
         print
 
+    def all_done(outputs):
+        for output in outputs:
+            if not output['done']:
+                return False
+        return True
+
+    def disable_an_entry(outputs):
+        for output in outputs:
+            if not output['done'] and not output['use'] and output['enabled']:
+                xrandr_off(output)
+                output['done'] = True
+                return 1
+        return 0
+
+    def enable_an_entry(outputs):
+        enables = 0
+        for output in reversed(outputs):
+            if not output['done'] and output['use']:
+                xrandr_on(output)
+                output['done'] = True
+                return 1
+        return 0
+
     def main(argv):
         global dry_run
         if len(argv) >= 2 and argv[1] == '--dry-run':
             dry_run = True
 
         outputs = parse()
-        #outputs[1]['connected'] = False
-        #outputs[2]['connected'] = False
-        print_outputs('Raw outputs', outputs)
+        print_outputs('Outputs', outputs)
 
-        preferred_order = list(reversed([output['name'] for output in outputs]))
-        print 'preferred order:', preferred_order
-        print
-
-        tmp = outputs
-        outputs = []
-        for name in preferred_order:
-            output = output_by_name(tmp, name)
-            if output:
-                outputs.append(output)
-        print_outputs('Sorted outputs', outputs)
-
-        connected_outputs = [output for output in outputs if output['connected']]
-        print_outputs('Connected outputs', connected_outputs)
-
-        enabled_outputs = [output for output in outputs if output['enabled']]
-        print_outputs('Enabled outputs', enabled_outputs)
-
-        # The outputs to use will be a subset of connected outputs
-        touse_outputs = connected_outputs
-
-        # If there are more then 2 connected outputs, start removing them by
-        # order of desirability.  The LCD panel is least desirable under the
-        # assumption that having more than two means the LCD panel shouldn't be
-        # used.
-        while len(touse_outputs) > 2:
-            print 'trim', touse_outputs[-1]['name']
-            touse_outputs = touse_outputs[:-1]
-        print_outputs('To use outputs', touse_outputs)
-
-        # Determine which outputs to turn off, and which to turn on
-        off_outputs = [output for output in enabled_outputs if output not in
-                touse_outputs]
-        print_outputs('Turn these off', off_outputs)
-        on_outputs = [output for output in touse_outputs if output not in
-                enabled_outputs]
-        print_outputs('Turn these on', on_outputs)
-
-        if len(enabled_outputs) < 1 or len(enabled_outputs) > 2 or \
-                len(touse_outputs) < 1 or len(touse_outputs) > 2:
-            print 'Something is wrong; doing nothing'
-            return
-
-        # Compute positions for final outputs
+        # Find the first two connected devices, in reverse list order.  On the
+        # Thinkpad X201, the reversed list order is the preferred order of
+        # precedence, highest quality external display first, down to internal
+        # LVDS panel used as a last resort.  Also find new posx values.
+        use_count = 0
         posx = 0
-        for output in touse_outputs:
-            output['posx'] = posx
-            output['posy'] = 0
-            posx += output['width']
-        print_outputs('touse, with positions', touse_outputs)
-
-        if touse_outputs != enabled_outputs:
-            # Remove all enabled outputs save one
-            while len(enabled_outputs) > 1:
-                output = enabled_outputs[0]
-                enabled_outputs = enabled_outputs[1:]
-                xrandr_off(output)
+        for output in reversed(outputs):
+            if output['connected']:
+                print 'use', output['name']
+                output['use'] = True
+                output['posx'] = posx
+                posx += output['width']
+                use_count += 1
+                if use_count >= 2:
+                    break
+
+        # How many outputs are currently enabled?
+        enabled_count = 0
+        for output in outputs:
+            if output['enabled']:
+                enabled_count += 1
 
-            # Move the remaining output to a safe position
-            last_old_output = enabled_outputs[0]
-            tmp = last_old_output['posx']
-            last_old_output['posx'] = posx # from above
-            xrandr_on(last_old_output)
-            last_old_output['posx'] = tmp
-
-            # Add the first touse output
-            first_new_output = touse_outputs[0]
-            touse_outputs = touse_outputs[1:]
-            xrandr_on(first_new_output)
-
-            # If last old is not to be used, remove it
-            if not output_by_name(touse_outputs, last_old_output['name']):
-                xrandr_off(last_old_output)
-
-        # Now add the remaining touse outputs
-        for output in touse_outputs:
-            xrandr_on(output)
+        # Mark outputs that receive no change as done
+        for output in outputs:
+            if not output['use'] and not output['enabled']:
+                # Nothing to do for this output, mark as done
+                output['done'] = True
+
+        while not all_done(outputs):
+            if enabled_count > 1:
+                enabled_count -= disable_an_entry(outputs)
+            if enabled_count < 2:
+                enabled_count += enable_an_entry(outputs)
 
 
     main(sys.argv)