/*
 *  The Mana World
 *  Copyright 2004 The Mana World Development Team
 *
 *  This file is part of The Mana World.
 *
 *  The Mana World is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  any later version.
 *
 *  The Mana World is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with The Mana World; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *  $Id$
 */

#ifndef _TMW_WINDOW_H__
#define _TMW_WINDOW_H__

#include <guichan/widgets/window.hpp>
#include <guichan/rectangle.hpp>

#include "../guichanfwd.h"

class ConfigListener;
class Image;
class ImageRect;
class WindowContainer;


/**
 * A window. This window can be dragged around and has a title bar.
 *
 * \ingroup GUI
 */
class Window : public gcn::Window
{
    public:
        friend class WindowConfigListener;

        /**
         * Constructor. Initializes the title to the given text and hooks
         * itself into the window container.
         *
         * @param text   The initial window title, "Window" by default.
         * @param modal  Block input to other windows.
         * @param parent The parent window. This is the window standing above
         *               this one in the window hiearchy. When reordering,
         *               a window will never go below its parent window.
         */
        Window(const std::string &caption = "Window", bool modal = false,
                Window *parent = NULL);

        /**
         * Destructor.
         */
        ~Window();

        /**
         * Sets the window container to be used by new windows.
         */
        static void setWindowContainer(WindowContainer *windowContainer);

        /**
         * Draws the window.
         */
        void draw(gcn::Graphics *graphics);

        /**
         * Adds a widget to the window.
         */
        void add(gcn::Widget *w);

        /**
         * Adds a widget to the window and also specifices its position.
         */
        void add(gcn::Widget *w, int x, int y);

        /**
         * Sets the width of the window contents.
         */
        void setContentWidth(int width);

        /**
         * Sets the height of the window contents.
         */
        void setContentHeight(int height);

        /**
         * Sets the location relative to the given widget.
         */
        void setLocationRelativeTo(gcn::Widget* widget);

        /**
         * Sets the size of this window.
         */
        void setContentSize(int width, int height);

        /**
         * Sets whether of not the window can be resized.
         */
        void setResizable(bool resize);

        /**
         * Returns whether the window can be resized.
         */
        bool isResizable();

        /**
         * Sets the minimum width of the window.
         */
        void setMinWidth(unsigned int width);

        /**
         * Sets the minimum height of the window.
         */
        void setMinHeight(unsigned int height);

        /**
         * Sets the maximum width of the window.
         */
        void setMaxWidth(unsigned int width);

        /**
         * Sets the minimum height of the window.
         */
        void setMaxHeight(unsigned int height);

        /**
         * Returns the parent window.
         *
         * @return The parent window or <code>NULL</code> if there is none.
         */
        Window*
        getParentWindow() { return mParent; }

        /**
         * Schedule this window for deletion. It will be deleted at the start
         * of the next logic update.
         */
        void scheduleDelete();

        /**
         * Window dragging and resizing mouse related. These methods also makes
         * sure the window is not dragged/resized outside of the screen.
         */
        void mousePress(int x, int y, int button);
        void mouseMotion(int mx, int my);
        void mouseRelease(int x, int y, int button);

        /**
         * Gets the position of the resize grip.
         */
        gcn::Rectangle getGripDimension();

        /**
         * Sets the name of the window. This is not the window title.
         */
        void
        setWindowName(const std::string &name) { mWindowName = name; }

        /**
         * Returns the name of the window. This is not the window title.
         */
        const std::string&
        getWindowName() { return mWindowName; }

        /**
         * Read the x, y, and width and height for resizables in the config
         * based on the name of the window.
         * That function let the values set with set{X, Y, Height, width}()
         * if no config value is found.
         * Don't forget to set these default values and resizable before
         * calling this function.
         */
        virtual void loadWindowState();

        /**
         * Set the default win pos and size.
         * (which can be different of the actual ones.)
         */
        virtual void setDefaultSize(int defaultX, int defaultY,
                                    int defaultWidth, int defaultHeight);

        /**
         * Reset the win pos and size to default.
         * Don't forget to set defaults first.
         */
        virtual void resetToDefaultSize();

    protected:
        gcn::Container *mChrome;   /**< Contained container */
        Window *mParent;           /**< The parent window */
        std::string mWindowName;   /**< Name of the window */
        int snapSize;              /**< Snap distance to window edge */
        bool mShowTitle;           /**< Window has a title bar */
        bool mModal;               /**< Window is modal */
        bool resizable;            /**< Window can be resized */
        bool mMouseResize;         /**< Window is being resized */
        int minWinWidth;           /**< Minimum window width */
        int minWinHeight;          /**< Minimum window height */
        int maxWinWidth;           /**< Maximum window width */
        int maxWinHeight;          /**< Maximum window height */
        int mDefaultX;             /**< Default window X position */
        int mDefaultY;             /**< Default window Y position */
        int mDefaultWidth;         /**< Default window width */
        int mDefaultHeight;        /**< Default window height */

        /** The window container windows add themselves to. */
        static WindowContainer* windowContainer;

        /**
         * The config listener that listens to changes relevant to all
         * windows
         */
        static ConfigListener *windowConfigListener;

        static int instances;      /**< Number of Window instances */
        static ImageRect border;   /**< The window border and background */
        static Image *resizeGrip;  /**< The grip to resize window */
};

#endif