fix M shortcut for empty plots

src/asammdf/gui/widgets/channel_stats.py

@@ -57,6 +57,9 @@ def __init__(self, xunit="s", precision=6, *args, **kwargs):
         self.precision.currentIndexChanged.connect(self.set_float_precision)
 
     def set_stats(self, stats):
+        if not stats:
+            return
+
         self._stats = deepcopy(stats)
         precision = self._settings.value("stats_float_precision", 6, type=int)
         fmt = f" {{:.{precision}f}}"

src/asammdf/gui/widgets/plot.py

@@ -2635,8 +2635,9 @@ def keyPressEvent(self, event):
                     )
                 )
 
-                stats = self.plot.get_stats(self.info_uuid)
-                self.info.set_stats(stats)
+                if self.info_uuid:
+                    stats = self.plot.get_stats(self.info_uuid)
+                    self.info.set_stats(stats)
 
         elif key == QtCore.Qt.Key.Key_2 and modifiers == QtCore.Qt.KeyboardModifier.NoModifier:
             self.focused_mode = not self.focused_mode
@@ -4294,14 +4295,17 @@ def get_current_timebase(self):
             return self.all_timebase
 
     def get_stats(self, uuid):
-        sig, index = self.signal_by_uuid(uuid)
-
-        return sig.get_stats(
-            cursor=self.cursor1.value() if self.cursor1 else None,
-            region=self.region.getRegion() if self.region else None,
-            view_region=self.viewbox.viewRange()[0],
-            precision=self._settings.value("stats_float_precision", sig.precision, type=int),
-        )
+        try:
+            sig, index = self.signal_by_uuid(uuid)
+        except KeyError:
+            return {}
+        else:
+            return sig.get_stats(
+                cursor=self.cursor1.value() if self.cursor1 else None,
+                region=self.region.getRegion() if self.region else None,
+                view_region=self.viewbox.viewRange()[0],
+                precision=self._settings.value("stats_float_precision", sig.precision, type=int),
+            )
 
     def get_timestamp_index(self, timestamp, timestamps):
         key = id(timestamps), timestamp

src/asammdf/version.py

@@ -1,3 +1,3 @@
 """ asammdf version module """
 
-__version__ = "7.3.17.dev1"
+__version__ = "7.3.17.dev2"