[gui][shift] Emit bool with signal

darfix/gui/shiftCorrectionWidget.py

@@ -81,7 +81,7 @@ class ShiftCorrectionWidget(qt.QMainWindow):
     """
     A widget to apply shift correction to a stack of images
     """
-    computingSignal = qt.Signal()
+    computingSignal = qt.Signal(bool)
 
     def __init__(self, parent=None):
         qt.QMainWindow.__init__(self, parent)
@@ -158,7 +158,7 @@ class ShiftCorrectionWidget(qt.QMainWindow):
         self._inputDock.widget.correctionB.setEnabled(False)
         self._inputDock.widget.abortB.show()
         self.thread_correction.start()
-        self.computingSignal.emit()
+        self.computingSignal.emit(True)
 
     def abort(self):
         self._inputDock.widget.abortB.setEnabled(False)
@@ -177,13 +177,13 @@ class ShiftCorrectionWidget(qt.QMainWindow):
         self.thread_detection.setArgs(self._dimension, indices=self.indices)
         self.thread_detection.finished.connect(self._updateShift)
         self.thread_detection.start()
-        self.computingSignal.emit()
+        self.computingSignal.emit(True)
 
     def _updateShift(self):
         self._inputDock.widget._findShiftB.setEnabled(True)
         self.thread_detection.finished.disconnect(self._updateShift)
         self.shift = numpy.round(self.thread_detection.data[:, 1], 5)
-        self.computingSignal.emit()
+        self.computingSignal.emit(False)
 
     def _updateData(self):
         """
@@ -193,7 +193,7 @@ class ShiftCorrectionWidget(qt.QMainWindow):
         self._inputDock.widget.abortB.hide()
         self._inputDock.widget.abortB.setEnabled(True)
         self._inputDock.widget.correctionB.setEnabled(True)
-        self.computingSignal.emit()
+        self.computingSignal.emit(False)
         if self.thread_correction.data:
             self._update_dataset = self.thread_correction.data
             assert self._update_dataset is not None