Added a Delegate for editing Cylinders

Now when you edit 'Type', a drop-down list will appear
and will enable you to choose from it's contents.

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>

qt-ui/modeldelegates.h

@@ -12,4 +12,12 @@ public:
 private:
 	QWidget *parentWidget;
 };
+
+class TankInfoDelegate : public QStyledItemDelegate{
+	Q_OBJECT
+public:
+    explicit TankInfoDelegate(QObject* parent = 0);
+    virtual QWidget* createEditor(QWidget* parent, const QStyleOptionViewItem& option, const QModelIndex& index) const;
+};
+
 #endif