Merge pull request #5173 from nyalldawson/model_crash_win

[processing] Fix crash in modeler on Windows

Author: nyalldawson

python/core/conversions.sip

@@ -1213,38 +1213,42 @@ template<TYPE2>
     if (!d)
         return NULL;
 
-    const sipMappedType *qlist_type = sipFindMappedType("QList<TYPE2>");
-
     // Set the dictionary elements.
     QMap<QString, QList< TYPE2 > >::const_iterator i;
 
     for (i = sipCpp->constBegin(); i != sipCpp->constEnd(); ++i)
     {
         QString *t1 = new QString(i.key());
-
         PyObject *t1obj = sipConvertFromNewType(t1, sipType_QString, sipTransferObj);
 
-        QList< TYPE2 > *t2 = new QList< TYPE2 >( i.value() );
-
-        PyObject *t2obj = sipConvertFromMappedType(t2, qlist_type, sipTransferObj);
+        // build list for dictionary value
+        QList< TYPE2 > sourceList = i.value();
+        PyObject *t2list = PyList_New( sourceList.size() );
+        if ( t2list )
+        {
+            for ( int j = 0; j < sourceList.size(); j++ )
+            {
+                TYPE2 *t = new TYPE2(sourceList.at(j));
+                PyObject *lobj = sipConvertFromNewType(t, sipType_TYPE2, sipTransferObj);
+                PyList_SetItem( t2list, j, lobj );
+            }
+        }
 
-        if (t1obj == NULL || t2obj == NULL || PyDict_SetItem(d, t1obj, t2obj) < 0)
+        if (t1obj == NULL || t2list == NULL || PyDict_SetItem(d, t1obj, t2list) < 0)
         {
             Py_DECREF(d);
 
             if (t1obj)
                 Py_DECREF(t1obj);
 
-            if (t2obj)
-                Py_DECREF(t2obj);
-            else
-                delete t2;
+            if (t2list)
+                Py_DECREF(t2list);
 
             return NULL;
         }
 
         Py_DECREF(t1obj);
-        Py_DECREF(t2obj);
+        Py_DECREF(t2list);
     }
 
     return d;

python/plugins/processing/modeler/ModelerDialog.py

@@ -588,17 +588,17 @@ def _addAlgorithm(self, alg, pos=None):
             pass
         if not dlg:
             dlg = ModelerParametersDialog(alg, self.model)
-        dlg.exec_()
-        if dlg.alg is not None:
+        if dlg.exec_():
+            alg = dlg.createAlgorithm()
             if pos is None:
-                dlg.alg.setPosition(self.getPositionForAlgorithmItem())
+                alg.setPosition(self.getPositionForAlgorithmItem())
             else:
-                dlg.alg.setPosition(pos)
+                alg.setPosition(pos)
             from processing.modeler.ModelerGraphicItem import ModelerGraphicItem
-            for i, out in enumerate(dlg.alg.modelOutputs()):
-                dlg.alg.modelOutput(out).setPosition(dlg.alg.position() + QPointF(ModelerGraphicItem.BOX_WIDTH, (i + 1.5) *
-                                                                                  ModelerGraphicItem.BOX_HEIGHT))
-            self.model.addChildAlgorithm(dlg.alg)
+            for i, out in enumerate(alg.modelOutputs()):
+                alg.modelOutput(out).setPosition(alg.position() + QPointF(ModelerGraphicItem.BOX_WIDTH, (i + 1.5) *
+                                                                          ModelerGraphicItem.BOX_HEIGHT))
+            self.model.addChildAlgorithm(alg)
             self.repaintModel()
             self.hasChanged = True
 

python/plugins/processing/modeler/ModelerGraphicItem.py

@@ -210,10 +210,10 @@ def editElement(self):
                 pass
             if not dlg:
                 dlg = ModelerParametersDialog(self.element.algorithm(), self.model, self.element.childId())
-            dlg.exec_()
-            if dlg.alg is not None:
-                dlg.alg.setChildId(self.element.childId())
-                self.updateAlgorithm(dlg.alg)
+            if dlg.exec_():
+                alg = dlg.createAlgorithm()
+                alg.setChildId(self.element.childId())
+                self.updateAlgorithm(alg)
                 self.scene.dialog.repaintModel()
 
     def updateAlgorithm(self, alg):

python/plugins/processing/modeler/ModelerParametersDialog.py

@@ -70,8 +70,6 @@ def __init__(self, alg, model, algName=None):
         self.setModal(True)
         # The algorithm to define in this dialog. It is an instance of GeoAlgorithm
         self._alg = alg
-        # The resulting algorithm after the user clicks on OK. it is an instance of the container Algorithm class
-        self.alg = None
         # The model this algorithm is going to be added to
         self.model = model
         # The name of the algorithm in the model, in case we are editing it and not defining it for the first time
@@ -348,21 +346,20 @@ def createAlgorithm(self):
             dep_ids.append(availableDependencies[selected].childId())  # spellok
         alg.setDependencies(dep_ids)
 
-        try:
-            self._alg.processBeforeAddingToModeler(alg, self.model)
-        except:
-            pass
+        #try:
+        #    self._alg.processBeforeAddingToModeler(alg, self.model)
+        #except:
+        #    pass
 
         return alg
 
     def okPressed(self):
-        self.alg = self.createAlgorithm()
-        if self.alg is not None:
-            self.close()
+        alg = self.createAlgorithm()
+        if alg is not None:
+            self.accept()
 
     def cancelPressed(self):
-        self.alg = None
-        self.close()
+        self.reject()
 
     def openHelp(self):
         algHelp = self._alg.help()