Editor: set combo box events for pathgrid creator

- Handles when combo box should automatically gain or lose focus.
- Checks user input when combo box selection changes.

apps/opencs/view/world/pathgridcreator.cpp

@@ -48,6 +48,8 @@ CSVWorld::PathgridCreator::PathgridCreator(
 
     mCell->model()->sort(0);
     mCell->setCurrentIndex(0);
+
+    connect(mCell, SIGNAL (currentIndexChanged(const QString&)), this, SLOT (cellChanged()));
 }
 
 std::string CSVWorld::PathgridCreator::getErrors() const
@@ -73,3 +75,19 @@ std::string CSVWorld::PathgridCreator::getErrors() const
 
     return errors;
 }
+
+void CSVWorld::PathgridCreator::focus()
+{
+    mCell->setFocus();
+}
+
+void CSVWorld::PathgridCreator::reset()
+{
+    CSVWorld::GenericCreator::reset();
+    mCell->setCurrentIndex(0);
+}
+
+void CSVWorld::PathgridCreator::cellChanged()
+{
+    update();
+}

apps/opencs/view/world/pathgridcreator.hpp

@@ -29,6 +29,17 @@ namespace CSVWorld
 
             /// \return Error description for current user input.
             virtual std::string getErrors() const;
+
+            /// \brief Set focus to cell ID input widget.
+            virtual void focus();
+
+            /// \brief Reset selected cell ID.
+            virtual void reset();
+
+        private slots:
+
+            /// \brief Check user input for errors.
+            void cellChanged();
     };
 }