Fix recent files on Windows

Contributes to Asana issue 33694049548880

cura/CuraApplication.py

@@ -85,7 +85,7 @@ class CuraApplication(QtApplication):
             if not os.path.isfile(f):
                 continue
 
-            self._recent_files.append(f)
+            self._recent_files.append(QUrl.fromLocalFile(f))
     
     ##  Handle loading of all plugin types (and the backend explicitly)
     #   \sa PluginRegistery
@@ -330,7 +330,7 @@ class CuraApplication(QtApplication):
         return log
 
     recentFilesChanged = pyqtSignal()
-    @pyqtProperty("QStringList", notify = recentFilesChanged)
+    @pyqtProperty("QVariantList", notify = recentFilesChanged)
     def recentFiles(self):
         return self._recent_files
 
@@ -508,7 +508,7 @@ class CuraApplication(QtApplication):
         if type(job) is not ReadMeshJob:
             return
 
-        f = job.getFileName()
+        f = QUrl.fromLocalFile(job.getFileName())
         if f in self._recent_files:
             self._recent_files.remove(f)
 
@@ -516,5 +516,9 @@ class CuraApplication(QtApplication):
         if len(self._recent_files) > 10:
             del self._recent_files[10]
 
-        Preferences.getInstance().setValue("cura/recent_files", ";".join(self._recent_files))
+        pref = ""
+        for path in self._recent_files:
+            pref += path.toLocalFile() + ";"
+
+        Preferences.getInstance().setValue("cura/recent_files", pref)
         self.recentFilesChanged.emit()

resources/qml/Cura.qml

@@ -37,9 +37,11 @@ UM.MainWindow {
                 Instantiator {
                     model: Printer.recentFiles
                     MenuItem {
-                        property url filePath: modelData;
-                        text: (index + 1) + ". " + modelData.slice(modelData.lastIndexOf("/") + 1);
-                        onTriggered: UM.MeshFileHandler.readLocalFile(filePath);
+                        text: {
+                            var path = modelData.toString()
+                            return (index + 1) + ". " + path.slice(path.lastIndexOf("/") + 1);
+                        }
+                        onTriggered: UM.MeshFileHandler.readLocalFile(modelData);
                     }
                     onObjectAdded: fileMenu.insertItem(index, object)
                     onObjectRemoved: fileMenu.removeItem(object)