Minor changes:

- flowchart emits state change signal when chart is loaded
 - metaarray workaround for lack of h5py debugging symbols

console/Console.py

@@ -236,6 +236,7 @@ class ConsoleWidget(QtGui.QWidget):
         if catch:
             self.ui.catchNextExceptionBtn.setChecked(False)
             exceptionHandling.register(self.allExceptionsHandler)
+            self.ui.exceptionBtn.setChecked(True)
         else:
             exceptionHandling.unregister(self.allExceptionsHandler)
         
@@ -248,6 +249,7 @@ class ConsoleWidget(QtGui.QWidget):
         if catch:
             self.ui.catchAllExceptionsBtn.setChecked(False)
             exceptionHandling.register(self.nextExceptionHandler)
+            self.ui.exceptionBtn.setChecked(True)
         else:
             exceptionHandling.unregister(self.nextExceptionHandler)
         

flowchart/Flowchart.py

@@ -515,6 +515,7 @@ class Flowchart(Node):
             
         self.sigChartLoaded.emit()
         self.outputChanged()
+        self.sigStateChanged.emit()
         #self.sigOutputChanged.emit()
             
     def loadFile(self, fileName=None, startDir=None):

metaarray/MetaArray.py

@@ -855,12 +855,18 @@ class MetaArray(object):
         if 'close' in kargs and readAllData is None: ## for backward compatibility
             readAllData = kargs['close']
        
-        if not HAVE_HDF5:
-            raise Exception("The file '%s' is HDF5-formatted, but the HDF5 library (h5py) was not found." % fileName)
-        
         if readAllData is True and writable is True:
             raise Exception("Incompatible arguments: readAllData=True and writable=True")
         
+        if not HAVE_HDF5:
+            try:
+                assert writable==False
+                assert readAllData != False
+                self._readHDF5Remote(fileName)
+                return
+            except:
+                raise Exception("The file '%s' is HDF5-formatted, but the HDF5 library (h5py) was not found." % fileName)
+        
         ## by default, readAllData=True for files < 500MB
         if readAllData is None:
             size = os.stat(fileName).st_size
@@ -884,6 +890,29 @@ class MetaArray(object):
         else:
             self._data = f['data'][:]
             f.close()
+            
+    def _readHDF5Remote(self, fileName):
+        ## Used to read HDF5 files via remote process.
+        ## This is needed in the case that HDF5 is not importable due to the use of python-dbg.
+        proc = getattr(MetaArray, '_hdf5Process', None)
+        
+        if proc == False:
+            raise Exception('remote read failed')
+        if proc == None:
+            import pyqtgraph.multiprocess as mp
+            #print "new process"
+            proc = mp.Process(executable='/usr/bin/python')
+            proc.setProxyOptions(deferGetattr=True)
+            MetaArray._hdf5Process = proc
+            MetaArray._h5py_metaarray = proc._import('pyqtgraph.metaarray')
+        ma = MetaArray._h5py_metaarray.MetaArray(file=fileName)
+        self._data = ma.asarray()._getValue()
+        self._info = ma._info._getValue()
+        #print MetaArray._hdf5Process
+        #import inspect
+        #print MetaArray, id(MetaArray), inspect.getmodule(MetaArray)
+        
+        
 
     @staticmethod
     def mapHDF5Array(data, writable=False):