/*
    kopeteonlinestatusmanager.h

    Copyright (c) 2004-2005 by Olivier Goffart  <ogoffart @ kde.org>

    Kopete    (c) 2004-2005 by the Kopete developers  <kopete-devel@kde.org>

    *************************************************************************
    *                                                                       *
    * This library is free software; you can redistribute it and/or         *
    * modify it under the terms of the GNU Lesser General Public            *
    * License as published by the Free Software Foundation; either          *
    * version 2 of the License, or (at your option) any later version.      *
    *                                                                       *
    *************************************************************************
*/

#ifndef kopeteonlinestatusmanager_h__
#define kopeteonlinestatusmanager_h__

#include <tqobject.h>

#include "kopeteonlinestatus.h"
#include "tdeaction.h"

class TQString;
class TQPixmap;
class TQColor;
class TDEActionMenu;

namespace Kopete
{
	class OnlineStatus;
	class Account;


/**
 * OnlineStatusManager is a singleton which manage OnlineStatus
 *
 * @author Olivier Goffart 
 */
class KOPETE_EXPORT OnlineStatusManager : public TQObject
{
	Q_OBJECT
  
public:
	static OnlineStatusManager* self();
	~OnlineStatusManager();

	/**
	 * Kopete will uses categories to have a more general system than siply globaly away.
	 * 
	 * Idealy, in each protocol, there should be one status per categories (status may be in several or in none categories
	 *
	 * Idle is the status used for auto-away
	 *
	 * Status number are organised so that make a tree.
	 */
	//please be carrefull when modifying values of status.  read comment in onlineStatus()
	enum Categories
	{
		Idle=1<<8,  ExtendedAway=1<<9 , Invisible=1<<10,
		//  \     /             __________/
		  /*1<<4*/    Busy=1<<5,           FreeForChat=1<<6,         /* 1<<7*/
		//   \       /                         /
		     Away=1<<2,                   /* 1<<3 */
		//       \                           /
						Online=1<<1,
		Offline=1
	};
	

	/**
	 * @see registerOnlineStatus
	 */
	enum Options
	{
		/// The user may set away messages for this online status   
		HasAwayMessage = 0x01,  
		/// The action of the status will be disabled if the account is offline.
		/// use it if your protocol doesn't support connecting with the status as initial status.
		/// You praticaly shouldn't abuse of that, and automaticaly set status after connecting if possible
		DisabledIfOffline = 0x02,
		///  The status will not appears in the action menu. Used if you want to register the status for e.g. autoaway,
		///  without letting the user set itself that status  
		HideFromMenu = 0x04
	};
	
	/**
	 * You need to register each status an account can be.
	 * Registered statuses will appear in the account menu.
	 * 
	 * The Protocol constructor is a good place to call this function.
	 * But if you want, you may use a special OnlineStatus constructor that call this function automaticaly
	 *
	 * You can set the status to be in the predefined categories.
	 * Ideally, each category should own one status.
	 * A status may be in several categories, or in none.
	 * There shouldn't be more than one status per protocol per categories.
	 *
	 * @param status The status to register
	 * @param caption The caption that will appear in menus (e.g. "Set &Away")
	 * @param categories A bitflag of @ref Categories
	 * @param options is a bitflag of @ref Options
	 */
	void registerOnlineStatus(const OnlineStatus& status, const TQString &caption, unsigned int categories=0x00 , unsigned int options=0x0);

	/**
	 * insert "setStatus" actions from the given account to the specified actionMenu.
	 *  (actions have that menu as parent TQObject)
	 * they are connected to the Account::setOnlineStatus signal
	 *
	 * Items are stored by status height.
	 * 
	 * @param account the account
	 * @param parent  the ActionMenu where action are inserted
	 */
	void createAccountStatusActions( Account *account , TDEActionMenu *parent);

	/**
	 * return the status of the @p protocol which is in the category @p category
	 *
	 * If no status has been registered in this category, return the one in the category which is the most similair
	 */
	OnlineStatus onlineStatus(Protocol *protocol, Categories category) const;

private:
	friend class OnlineStatus;
	TQPixmap cacheLookupByObject( const OnlineStatus &statusFor, const TQString& icon, int size, TQColor color, bool idle = false);
	TQPixmap cacheLookupByMimeSource( const TQString &mimeSource );
	TQString fingerprint( const OnlineStatus &statusFor, const TQString& icon, int size, TQColor color, bool idle = false);
	TQPixmap* renderIcon( const OnlineStatus &statusFor, const TQString& baseicon, int size, TQColor color, bool idle = false) const;

signals:
	void iconsChanged();

private slots:
	void slotIconsChanged();

private:
	
	static OnlineStatusManager *s_self;
	OnlineStatusManager();
	class Private;
	Private *d;
};


/**
 * @internal
 */
class OnlineStatusAction : public TDEAction
{
	Q_OBJECT
  
  public:
	OnlineStatusAction ( const OnlineStatus& status, const TQString &text, const TQIconSet &pix, TQObject *parent=0, const char *name=0);
  signals:
	void activated( const Kopete::OnlineStatus& status );
  private slots:
	void slotActivated();
  private:
	OnlineStatus m_status;
};

}  //END namespace Kopete 

#endif
