class QPushButton;
class QKeyEvent;
class QWheelEvent;
+class QStackedLayout;
class PlIconView;
class PlListView;
class LocationBar;
PlIconView *iconView;
PlListView *listView;
QAbstractItemView *currentView;
+ QStackedLayout *viewStack;
QAction *viewActions[ VIEW_COUNT ];
QAction *iconViewAction, *treeViewAction;