Fix: prevent manual cursor movement in SignalBaselineDialog

(cherry picked from commit ccc95a4)

Author: PierreRaybaut

cdl/widgets/signalbaseline.py

@@ -57,6 +57,12 @@ def __setup_dialog(self) -> None:
         plot.SIG_RANGE_CHANGED.connect(self.xrange_changed)
         plot.SIG_MARKER_CHANGED.connect(self.cursor_changed)
         self.cursor = make.hcursor(0.0, _("Base line") + " = %g")
+
+        # The following line is needed to avoid the cursor being movable manually
+        # by the user, which would not make sense in this dialog.
+        # TODO: Calling `set_resizable` for this is not intuitive: report upstream?
+        self.cursor.set_resizable(False)
+
         self.xrange = make.range(obj.x[0], obj.x[int(0.2 * len(obj.x))])
         for item in (self.curve, self.cursor, self.xrange):
             plot.add_item(item)