Source code for PyMca5.PyMcaGui.pymca.QSpsDataSource

#/*##########################################################################
# Copyright (C) 2004-2014 V.A. Sole, European Synchrotron Radiation Facility
#
# This file is part of the PyMca X-ray Fluorescence Toolkit developed at
# the ESRF by the Software group.
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__author__ = "V.A. Sole - ESRF Data Analysis"
__contact__ = "sole@esrf.fr"
__license__ = "MIT"
__copyright__ = "European Synchrotron Radiation Facility, Grenoble, France"
import sys
from PyMca5.PyMcaGui.pymca import QSource
from PyMca5.PyMcaCore import SpsDataSource
qt = QSource.qt
QTVERSION = qt.qVersion()

SOURCE_TYPE = SpsDataSource.SOURCE_TYPE

[docs]class QSpsDataSource(QSource.QSource): """Shared memory source The shared memory source object uses SPS through the SPSWrapper module to get access to shared memory zones created by Spec or Device Servers Emitted signals are : updated """ def __init__(self, sourceName): QSource.QSource.__init__(self) self.__dataSource = SpsDataSource.SpsDataSource(sourceName) #easy speed up by making a local reference self.sourceName = self.__dataSource.sourceName self.isUpdated = self.__dataSource.isUpdated self.sourceType = self.__dataSource.sourceType self.getKeyInfo = self.__dataSource.getKeyInfo self.refresh = self.__dataSource.refresh self.getSourceInfo = self.__dataSource.getSourceInfo def __getattr__(self,attr): if not attr.startswith("__"): #if not hasattr(qt.QObject, attr): if not hasattr(self, attr): try: return getattr(self.__dataSource, attr) except: pass raise AttributeError
[docs] def getDataObject(self,key_list,selection=None, poll=True): if poll: data = self.__dataSource.getDataObject(key_list,selection) self.addToPoller(data) return data else: return self.__dataSource.getDataObject(key_list,selection)
[docs] def customEvent(self, event): ddict = event.dict ddict['SourceName'] = self.__dataSource.sourceName ddict['SourceType'] = SOURCE_TYPE key = ddict['Key'] idtolook = [] ddict['selectionlist'] = [] for object in self.surveyDict[key]: idtolook.append(id(object)) if key in self.selections.keys(): n = len(self.selections[key]) if n: a = range(n) a.reverse() legendlist = [] for i in a: objectId, info = self.selections[key][i] scanselection = 0 if 'scanselection' in info: scanselection = info['scanselection'] if info['legend'] in legendlist: if not scanselection: del self.selections[key][i] continue if objectId in idtolook: sel = {} sel['SourceName'] = self.__dataSource.sourceName sel['SourceType'] = SOURCE_TYPE sel['Key'] = key sel['selection'] = info['selection'] sel['legend'] = info['legend'] legendlist.append(info['legend']) sel['targetwidgetid'] = info.get('targetwidgetid', None) sel['scanselection'] = info.get('scanselection', False) sel['imageselection'] = info.get('imageselection', False) ddict['selectionlist'].append(sel) #else: del self.selections[key][i] self.sigUpdated.emit(ddict) else: print("No info????")
if __name__ == "__main__": try: specname=sys.argv[1] arrayname=sys.argv[2] except: print("Usage: SpsDataSource <specversion> <arrayname>") sys.exit() app=qt.QApplication([]) obj = QSpsDataSource(specname) def mytest(ddict): print(ddict['Key']) app.mytest = mytest data = obj.getDataObject(arrayname,poll=True) obj.sigUpdated.connect(mytest) app.exec_()