/*****************************************************************************
 * x11_factory.hpp
 *****************************************************************************
 * Copyright (C) 2003 the VideoLAN team
 *
 * Authors: Cyril Deguet     <asmax@via.ecp.fr>
 *          Olivier Teulière <ipkiss@via.ecp.fr>
 *
 * This program 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
 * (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
 *****************************************************************************/

#ifndef X11_FACTORY_HPP
#define X11_FACTORY_HPP

#include <X11/Xlib.h>
#include <X11/Xcursor/Xcursor.h>

#include "../src/os_factory.hpp"
#include "../src/generic_window.hpp"
#include "x11_display.hpp"
#include <map>

class X11Display;
class X11DragDrop;
class X11TimerLoop;


/// Class used to instantiate X11 specific objects
class X11Factory: public OSFactory
{
private:
    /** ptrmap is an associative container (like std::map, in fact it builds
      * on std::map) that provides only operator[] in non-const and const
      * variants, and has the property that a (const) lookup of a non-existent
      * key does not cause an empty node to be inserted. Instead it returns
      * NULL if there was no entry; so it only stores pointers. */
    template<class K, class V> class ptrmap {
    private:
        typedef V *value_type;
        typedef std::map<K,value_type> map_t;
        map_t m_map;
        ptrmap &operator=(const ptrmap &);
        ptrmap(const ptrmap &);
    public:
        ptrmap() { }
        value_type &operator[](K k) { return m_map.operator[](k); }
        value_type  operator[](K k) const
        {
            typename map_t::const_iterator i=m_map.find(k);
            return i!=m_map.end() ? i->second : NULL;
        }
    };
public:
    /// Map to find the GenericWindow* associated to a X11Window
    ptrmap<Window, GenericWindow> m_windowMap;
    /// Map to find the Dnd object (X11DragDrop*) associated to a X11Window
    ptrmap<Window, X11DragDrop> m_dndMap;

    X11Factory( intf_thread_t *pIntf );
    virtual ~X11Factory();

    /// Initialization method
    virtual bool init();

    /// Instantiate an object OSGraphics
    virtual OSGraphics *createOSGraphics( int width, int height );

    /// Get the instance of the singleton OSLoop
    virtual OSLoop *getOSLoop();

    /// Destroy the instance of OSLoop
    virtual void destroyOSLoop();

    /// Instantiate an OSTimer with the given command
    virtual OSTimer *createOSTimer( CmdGeneric &rCmd );

    /// Minimize all the windows
    virtual void minimize();

    /// Restore the minimized windows
    virtual void restore();

    /// Add an icon in the system tray
    virtual void addInTray();

    /// Remove the icon from the system tray
    virtual void removeFromTray();

    /// Show the task in the task bar
    virtual void addInTaskBar();

    /// Remove the task from the task bar
    virtual void removeFromTaskBar();

    /// Instantiate an OSWindow object
    virtual OSWindow *createOSWindow( GenericWindow &rWindow,
                                      bool dragDrop, bool playOnDrop,
                                      OSWindow *pParent,
                                      GenericWindow::WindowType_t type );

    /// Instantiate an object OSTooltip
    virtual OSTooltip *createOSTooltip();

    /// Instantiate an object OSPopup
    virtual OSPopup *createOSPopup();

    /// Get the directory separator
    virtual const std::string &getDirSeparator() const { return m_dirSep; }

    /// Get the resource path
    virtual const std::list<std::string> &getResourcePath() const
        { return m_resourcePath; }

    /// Get the screen size
    virtual int getScreenWidth() const;
    virtual int getScreenHeight() const;

    /// Get Monitor Information
    virtual void getMonitorInfo( OSWindow *pWindow,
                                 int* x, int* y,
                                 int* width, int* height ) const;
    virtual void getMonitorInfo( int numScreen,
                                 int* x, int* y,
                                 int* width, int* height ) const;

    virtual void getDefaultGeometry( int* width, int* height ) const;

    /// Get the work area (screen area without taskbars)
    virtual SkinsRect getWorkArea() const;

    /// Get the position of the mouse
    virtual void getMousePos( int &rXPos, int &rYPos ) const;

    /// Change the cursor
    virtual void changeCursor( CursorType_t type ) const;

    /// Delete a directory recursively
    virtual void rmDir( const std::string &rPath );

    /// Get the timer loop
    X11TimerLoop *getTimerLoop() const { return m_pTimerLoop; }

    /// retain current window where mouse pointer lies
    void setPointerWindow( Window win );


private:
    /// X11 display
    X11Display *m_pDisplay;
    /// Timer loop
    X11TimerLoop *m_pTimerLoop;
    /// Directory separator
    const std::string m_dirSep;
    /// Resource path
    std::list<std::string> m_resourcePath;
    /// Monitor geometry
    int m_screenWidth, m_screenHeight;
    /// cursor management variables
    mutable std::map<CursorType_t, Cursor> mCursors;
    void initCursors();
    Window mPointerWindow, mVoutWindow;
    Cursor mEmptyCursor;
};

#endif
