[processing] made postprocessing code more pythonic

Author: volaya

python/plugins/processing/gui/AlgorithmClassification.py

@@ -50,10 +50,8 @@ def loadClassification():
         lines.close()
 
     @staticmethod
-    def classificationFile():
-        folder = os.path.join(os.path.dirname(__file__), 'help')
-        f = os.path.join(folder, 'algclasssification.txt')
-        return f
+    def classificationFile():        
+        return os.path.join(os.path.join(os.path.dirname(__file__), 'algclasssification.txt')        
 
     @staticmethod
     def getGroupsAndName(alg):

python/plugins/processing/gui/AlgorithmExecutionDialog.py

@@ -37,7 +37,7 @@
 from processing.core.ProcessingLog import ProcessingLog
 from processing.core.ProcessingConfig import ProcessingConfig
 from processing.core.WrongHelpFileException import WrongHelpFileException
-from processing.gui.Postprocessing import Postprocessing
+from processing.gui.Postprocessing import handleAlgorithmResults
 from processing.gui.UnthreadedAlgorithmExecutor import \
         UnthreadedAlgorithmExecutor
 from processing.parameters.ParameterRaster import ParameterRaster
@@ -283,7 +283,7 @@ def finish(self):
         keepOpen = ProcessingConfig.getSetting(
                 ProcessingConfig.KEEP_DIALOG_OPEN)
         if self.iterateParam is None:
-            Postprocessing.handleAlgorithmResults(self.alg, self, not keepOpen)
+            handleAlgorithmResults(self.alg, self, not keepOpen)
         self.executed = True
         self.setInfo('Algorithm %s finished' % self.alg.name)
         QApplication.restoreOverrideCursor()

python/plugins/processing/gui/BatchProcessingDialog.py

@@ -29,7 +29,7 @@
 from PyQt4.QtCore import *
 from PyQt4.QtGui import *
 from processing.core.ProcessingResults import ProcessingResults
-from processing.gui.Postprocessing import Postprocessing
+from processing.gui.Postprocessing import handleAlgorithmResults
 from processing.gui.FileSelectionPanel import FileSelectionPanel
 from processing.gui.BatchInputSelectionPanel import BatchInputSelectionPanel
 from processing.gui.AlgorithmExecutionDialog import AlgorithmExecutionDialog
@@ -203,7 +203,7 @@ def accept(self):
             if UnthreadedAlgorithmExecutor.runalg(alg, self) \
                 and not self.canceled:
                 if self.load[i]:
-                    Postprocessing.handleAlgorithmResults(alg, self, False)
+                    handleAlgorithmResults(alg, self, False)
             else:
                 QApplication.restoreOverrideCursor()
                 return

python/plugins/processing/gui/Postprocessing.py

@@ -39,45 +39,41 @@
 from processing.outputs.OutputHTML import OutputHTML
 from processing.tools import dataobjects
 
-
-class Postprocessing:
-
-    @staticmethod
-    def handleAlgorithmResults(alg, progress, showResults=True):
-        wrongLayers = []
-        htmlResults = False
-        progress.setText('Loading resulting layers')
-        i = 0
-        for out in alg.outputs:
-            progress.setPercentage(100 * i / float(len(alg.outputs)))
-            if out.hidden or not out.open:
-                continue
-            if isinstance(out, (OutputRaster, OutputVector, OutputTable)):
-                try:
-                    if out.value.startswith('memory:'):
-                        layer = out.memoryLayer
-                        QgsMapLayerRegistry.instance().addMapLayers([layer])
+def handleAlgorithmResults(alg, progress, showResults=True):
+    wrongLayers = []
+    htmlResults = False
+    progress.setText('Loading resulting layers')
+    i = 0
+    for out in alg.outputs:
+        progress.setPercentage(100 * i / float(len(alg.outputs)))
+        if out.hidden or not out.open:
+            continue
+        if isinstance(out, (OutputRaster, OutputVector, OutputTable)):
+            try:
+                if out.value.startswith('memory:'):
+                    layer = out.memoryLayer
+                    QgsMapLayerRegistry.instance().addMapLayers([layer])
+                else:
+                    if ProcessingConfig.getSetting(
+                            ProcessingConfig.USE_FILENAME_AS_LAYER_NAME):
+                        name = os.path.basename(out.value)
                     else:
-                        if ProcessingConfig.getSetting(
-                                ProcessingConfig.USE_FILENAME_AS_LAYER_NAME):
-                            name = os.path.basename(out.value)
-                        else:
-                            name = out.description
-                        dataobjects.load(out.value, name, alg.crs,
-                                RenderingStyles.getStyle(alg.commandLineName(),
-                                out.name))
-                except Exception, e:
-                    wrongLayers.append(out)
-            elif isinstance(out, OutputHTML):
-                ProcessingResults.addResult(out.description, out.value)
-                htmlResults = True
-            i += 1
-        if wrongLayers:
-            QApplication.restoreOverrideCursor()
-            dlg = CouldNotLoadResultsDialog(wrongLayers, alg)
-            dlg.exec_()
+                        name = out.description
+                    dataobjects.load(out.value, name, alg.crs,
+                            RenderingStyles.getStyle(alg.commandLineName(),
+                            out.name))
+            except Exception, e:
+                wrongLayers.append(out)
+        elif isinstance(out, OutputHTML):
+            ProcessingResults.addResult(out.description, out.value)
+            htmlResults = True
+        i += 1
+    if wrongLayers:
+        QApplication.restoreOverrideCursor()
+        dlg = CouldNotLoadResultsDialog(wrongLayers, alg)
+        dlg.exec_()
 
-        if showResults and htmlResults and not wrongLayers:
-            QApplication.restoreOverrideCursor()
-            dlg = ResultsDialog()
-            dlg.exec_()
+    if showResults and htmlResults and not wrongLayers:
+        QApplication.restoreOverrideCursor()
+        dlg = ResultsDialog()
+        dlg.exec_()

python/plugins/processing/gui/UnthreadedAlgorithmExecutor.py

@@ -32,7 +32,7 @@
 from processing.core.ProcessingLog import ProcessingLog
 from processing.core.GeoAlgorithmExecutionException import \
         GeoAlgorithmExecutionException
-from processing.gui.Postprocessing import Postprocessing
+from processing.gui.Postprocessing import handleAlgorithmResults
 from processing.tools import dataobjects
 from processing.tools.system import *
 from processing.tools import vector
@@ -87,9 +87,8 @@ def runalgIterating(alg, paramToIter, progress):
         for out in alg.outputs:
             outputs[out.name] = out.value
 
-        # now run all the algorithms
-        i = 1
-        for f in filelist:
+        # now run all the algorithms        
+        for i,f in enumerate(filelist):
             alg.setParameterValue(paramToIter, f)
             for out in alg.outputs:
                 filename = outputs[out.name]
@@ -101,9 +100,7 @@ def runalgIterating(alg, paramToIter, progress):
                              + str(len(filelist)) + '...')
             progress.setPercentage(i * 100 / len(filelist))
             if UnthreadedAlgorithmExecutor.runalg(alg, SilentProgress()):
-                Postprocessing.handleAlgorithmResults(alg, SilentProgress(),
-                        False)
-                i += 1
+                handleAlgorithmResults(alg, SilentProgress(), False)                 
             else:
                 return False
 

python/plugins/processing/tools/general.py

@@ -27,7 +27,7 @@
 
 from qgis.core import *
 from processing.core.Processing import Processing
-from processing.gui.Postprocessing import Postprocessing
+from processing.gui.Postprocessing import handleAlgorithmResults
 from processing.parameters.ParameterSelection import ParameterSelection
 
 
@@ -74,6 +74,4 @@ def runalg(algOrName, *args):
 
 
 def runandload(name, *args):
-    return Processing.runAlgorithm(name,
-                                   Postprocessing.handleAlgorithmResults,
-                                   *args)
+    return Processing.runAlgorithm(name, handleAlgorithmResults, *args)