wip

zoom.py

@@ -68,7 +68,9 @@ class Zoom(QGroupBox, Ui_Zoom):
     #  pv.callbacks ... = self.zoom_update_cb
     # check also: pv.clear_auto_monitor()  # disconnect PV monitor callback -> program exit faster.
     buttons=((1, "1"), (200, "200"), (400, "400"), (600, "600"), (800, "800"), (1000, "1000"),)
-    current_zoom_value = self.get_zoom()
+
+    zoom=QApplication.instance()._zoom
+    current_zoom_value = zoom.get_rb()
 
     # zoom widgets
     layout = QVBoxLayout()
@@ -269,11 +271,11 @@ class Zoom(QGroupBox, Ui_Zoom):
     self._zoom_spinner.blockSignals(False)
     self.zoomChanged.emit(float(value))
 
-  def get_zoom(self) -> int:
-    zoom=QApplication.instance()._zoom
-    pos = zoom.get()
-    _log.debug("get_zoom(epics) => {}".format(pos))
-    return pos
+#  def get_zoom(self) -> int:
+#    zoom=QApplication.instance()._zoom
+#    pos = zoom.get()
+#    _log.debug("get_zoom(epics) => {}".format(pos))
+#    return pos
 
 #  def zoom_update_cb(self, pvname, value, char_value, **kwargs):
 #    self._zoom_spinner.blockSignals(True)
@@ -304,24 +306,33 @@ class QopticZoom(object):
       self._pv[name]=pv
     return pv
 
-  def get(self) -> int:
+  def get_rb(self) -> int:
+    # get_rb somtimes lags. therefore get_sp will get the last set_point without usage of pvs
     try:
-      pv = self.getPv('POS_RB')
+      pv = self.getPv('POS_RB') #default do not get the RBV, because this might be delayed
     except AttributeError:
       val=self._val; _log.debug('simulated mode:{}'.format(val))
       return val
     else:
-      pv=self.getPv('POS_RB')
-    return pv.get()
+      return pv.get()
+
+  def get_sp(self) -> int:
+    try:
+      val=self._val
+    except AttributeError:
+      pv=self.getPv('POS_RB')  # default do not get the RBV, because this might be delayed
+      self._val=val=pv.get()
+    return val
+
 
   def set(self, val: int):
     try:
       pv=self.getPv('POS_SP')
     except AttributeError:
       _log.debug('simulated mode:{}'.format(val))
-      self._val=val #simulated mode
     else:
       pv.put(val)
+    self._val=val
 
 
 if __name__ == "__main__":