Batch processing in separate thread.

git-svn-id: http://sextante.googlecode.com/svn/trunk/soft/bindings/qgis-plugin@235 881b9c09-3ef8-f3c2-ec3d-21d735c97f4d

Author: cpolymeris@gmail.com

src/sextante/gui/BatchProcessingDialog.py

@@ -95,19 +95,16 @@ def okPressed(self):
                     QMessageBox.critical(self, "Unable to execute batch process", "Wrong or missing parameter values")
                     self.algs = None
                     return
-            row+=1
+            #~ row+=1     ??? - why?
             self.algs.append(alg)
 
         QApplication.setOverrideCursor(QCursor(Qt.WaitCursor))
         self.progress.setMaximum(len(self.algs))
-        for alg in self.algs:
-            algEx = AlgorithmExecutor(alg);
-            algEx.start()
-
-        QApplication.restoreOverrideCursor()
-        QMessageBox.information(self, "Batch processing", "Batch processing successfully completed!")
-        self.close()
-
+        self.progress.setValue(0)
+        self.nextAlg(0)
+            
+        self.table.setEnabled(False)
+        
     def loadHTMLResults(self, alg, i):
         for out in alg.outputs:
             if out.hidden or not out.open:
@@ -119,6 +116,31 @@ def cancelPressed(self):
         self.algs = None
         self.close()
 
+    @pyqtSlot()
+    def finish(self, i):
+        i += 1
+        self.progress.setValue(i)
+        if len(self.algs) == i:
+            self.finishAll()
+            self.algEx = None
+        else:
+            self.nextAlg(i)
+
+    def nextAlg(self, i):
+        self.algEx = AlgorithmExecutor(self.algs[i]);
+        self.algEx.finished.connect(lambda: self.finish(i))
+        self.algEx.start()
+    
+    def finishAll(self):
+        i = 0
+        for alg in self.algs:
+            self.loadHTMLResults(alg, i)
+            i = i + 1
+        QApplication.restoreOverrideCursor()
+        self.table.setEnabled(True)
+        QMessageBox.information(self, "Batch processing", "Batch processing successfully completed!")
+        self.close()
+
     def setParameterValueFromWidget(self, param, widget):
         if isinstance(param, (ParameterRaster, ParameterVector, ParameterTable, ParameterMultipleInput)):
             return param.setValue(widget.getText())

src/sextante/gui/ParametersDialog.py

@@ -219,6 +219,7 @@ def finish(self):
     def cancel(self):
         try:
             self.algEx.finished.disconnect()
+            QApplication.restoreOverrideCursor()
             self.buttonBox.button(QtGui.QDialogButtonBox.Cancel).setEnabled(False)
         except:
             pass