tools/analyze-recording: add --print-state to always print values

Helpful in comparing values that update frequently - without this the
last printed value may be way off the page when some other value comes
in that it needs to be compared to.

Values not seen yet default to zero - we can't query those from a
recording but it'll be good enough this way.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

diff --git a/tools/libinput-analyze-recording.py b/tools/libinput-analyze-recording.py
index c95e393bf8f9224a761ad4eb8abdc8bafabed025..9df8cc9a4cc2ce0d6afd3d7793d8d574bbe45482 100755 (executable)
--- a/tools/libinput-analyze-recording.py
+++ b/tools/libinput-analyze-recording.py
@@ -87,6 +87,12 @@ def main(argv):
         default="",
         help="A comma-separated list of axis names to print, ignoring all others",
     )
+    parser.add_argument(
+        "--print-state",
+        action="store_true",
+        default=False,
+        help="Always print all axis values, even unchanged ones",
+    )
 
     args = parser.parse_args()
     if args.ignore and args.only:
@@ -148,6 +154,7 @@ def main(argv):
     print(header_line)
     print("-" * len(header_line))
 
+    current_codes = []
     current_frame = {}  # {evdev-code: value}
     axes_in_use = {}  # to print axes never sending events
     last_fields = []  # to skip duplicate lines
@@ -164,12 +171,16 @@ def main(argv):
             keystate_changed = True
         elif is_tracked_axis(e.code, only_axes, ignored_axes):
             current_frame[e.code] = e.value
+            current_codes.append(e.code)
         elif e.code == libevdev.EV_SYN.SYN_REPORT:
             fields = []
             for a in axes:
-                s = format_value(a, current_frame[a]) if a in current_frame else " "
+                if args.print_state or a in current_codes:
+                    s = format_value(a, current_frame.get(a, 0))
+                else:
+                    s = ""
                 fields.append(s.rjust(max(MIN_FIELD_WIDTH, axes[a])))
-            current_frame = {}
+            current_codes = []
 
             if last_fields != fields or keystate_changed:
                 last_fields = fields.copy()