// ================================================================================
// ==      This file is a part of Turbo Badger. (C) 2011-2014, Emil Segerås      ==
// ==                     See tb_core.h for more information.                    ==
// ================================================================================

#ifndef TB_ADDON_H
#define TB_ADDON_H

#include "tb_linklist.h"
#include "tb_widgets.h"

namespace tb {

/** TBAddon provides a simple API with Init/Shutdown callbacks that will
    be called during tb_core_init and tb_core_shutdown.

    THIS CLASS IS DEPRECATED! */

class TBAddon : public TBLinkOf<TBAddon>
{
public:
    /** Called during tb_core_init after turbo badger core has been initiated. */
    virtual bool Init() = 0;

    /** Called during tb_core_shutdown before turbo badger core has been shut down. */
    virtual void Shutdown() = 0;

    virtual ~TBAddon() {}
};

/** TBAddonFactory is ment to be subclassed to create a TBAddon, by
    being declared as a global object. It will then register itself
    so the addon is created, initiated during tb_core_init and
    destroyed during tb_core_shutdown.

    THIS CLASS IS DEPRECATED! */
class TBAddonFactory
{
public:
    TBAddonFactory();

    virtual TBAddon *Create() = 0;

    TBAddonFactory *next;	///< Next registered addon factory.
};

/** Init addons. */
bool TBInitAddons();

/** Shutdown and delete addons. */
void TBShutdownAddons();

/** This macro creates a new TBAddonFactory for the given class name. */
#define TB_ADDON_FACTORY(classname) \
    class classname##AddonFactory : public TBAddonFactory \
{ \
    public: \
    virtual TBAddon *Create() \
{ \
    return new classname(); \
} \
}; \
    static classname##AddonFactory classname##_af;

}; // namespace tb

#endif // TB_ADDON_H