/*
 * Copyright (c) 2005-2008, Haiku, Inc.
 * Distributed under the terms of the MIT license.
 *
 * Authors:
 *              Axel Dörfler, axeld@pinc-software.de
 */
#ifndef WINDOW_LIST_H
#define WINDOW_LIST_H


#include <SupportDefs.h>
#include <Point.h>


class Window;


class WindowList {
public:
                                        WindowList(int32 index = 0);
                                        ~WindowList();

                        void    SetIndex(int32 index);
                        int32   Index() const { return fIndex; }

                        Window* FirstWindow() const { return fFirstWindow; }
                        Window* LastWindow() const { return fLastWindow; }

                        void    AddWindow(Window* window, Window* before = NULL);
                        void    RemoveWindow(Window* window);

                        bool    HasWindow(Window* window) const;
                        bool    ValidateWindow(Window* window) const;

                        int32   Count() const;
                                                // O(n)

private:
        int32                   fIndex;
        Window*                 fFirstWindow;
        Window*                 fLastWindow;
};

enum window_lists {
        kAllWindowList = 32,
        kSubsetList,
        kFocusList,
        kWorkingList,

        kListCount
};

struct window_anchor {
        window_anchor();

        Window* next;
        Window* previous;
        BPoint  position;
};

extern const BPoint kInvalidWindowPosition;

#endif  // WINDOW_LIST_H