/*
 * Copyright 2010, Haiku, Inc. All rights reserved.
 * Distributed under the terms of the MIT License.
 */
#ifndef WINDOW_STACK_H
#define WINDOW_STACK_H


#include <Window.h>


class BWindowStack {
public:
                                                                BWindowStack(BWindow* window);
                                                                ~BWindowStack();

                        status_t                        AddWindow(const BWindow* window);
                        status_t                        AddWindow(const BMessenger& window);
                        status_t                        AddWindowAt(const BWindow* window,
                                                                        int32 position);
                        status_t                        AddWindowAt(const BMessenger& window,
                                                                        int32 position);

                        status_t                        RemoveWindow(const BWindow* window);
                        status_t                        RemoveWindow(const BMessenger& window);
                        status_t                        RemoveWindowAt(int32 position,
                                                                        BMessenger* window = NULL);

                        int32                           CountWindows();

                        status_t                        WindowAt(int32 position,
                                                                BMessenger& messenger);
                        bool                            HasWindow(const BWindow* window);
                        bool                            HasWindow(const BMessenger& window);

private:
                        status_t                        _AttachMessenger(const BMessenger& window);
                        status_t                        _ReadMessenger(BMessenger& window);
                        status_t                        _StartMessage(int32 what);

                        BPrivate::PortLink*     fLink;
};


#endif