Notify.h

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/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
 *
 * This library is open source and may be redistributed and/or modified under
 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
 * (at your option) any later version.  The full license is in LICENSE file
 * included with this distribution, and on the openscenegraph.org website.
 *
 * This library 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
 * OpenSceneGraph Public License for more details.
*/

#ifndef OSG_NOTIFY_H
#define OSG_NOTIFY_H 1

#include <osg/Export>
#include <osg/Referenced> // for NotifyHandler

#include <ostream>

namespace osg {

enum NotifySeverity {
    ALWAYS=0,
    FATAL=1,
    WARN=2,
    NOTICE=3,
    INFO=4,
    DEBUG_INFO=5,
    DEBUG_FP=6
};

extern OSG_EXPORT void setNotifyLevel(NotifySeverity severity);

extern OSG_EXPORT NotifySeverity getNotifyLevel();

extern OSG_EXPORT bool initNotifyLevel();

#ifdef OSG_NOTIFY_DISABLED
    inline bool isNotifyEnabled(NotifySeverity) { return false; }
#else

    extern OSG_EXPORT bool isNotifyEnabled(NotifySeverity severity);
#endif

extern OSG_EXPORT std::ostream& notify(const NotifySeverity severity);

inline std::ostream& notify(void) { return notify(osg::INFO); }

#define OSG_NOTIFY(level) if (osg::isNotifyEnabled(level)) osg::notify(level)
#define OSG_ALWAYS OSG_NOTIFY(osg::ALWAYS)
#define OSG_FATAL OSG_NOTIFY(osg::FATAL)
#define OSG_WARN OSG_NOTIFY(osg::WARN)
#define OSG_NOTICE OSG_NOTIFY(osg::NOTICE)
#define OSG_INFO OSG_NOTIFY(osg::INFO)
#define OSG_DEBUG OSG_NOTIFY(osg::DEBUG_INFO)
#define OSG_DEBUG_FP OSG_NOTIFY(osg::DEBUG_FP)

class OSG_EXPORT NotifyHandler : public osg::Referenced
{
public:
    virtual void notify(osg::NotifySeverity severity, const char *message) = 0;
};

extern OSG_EXPORT void setNotifyHandler(NotifyHandler *handler);

extern OSG_EXPORT NotifyHandler *getNotifyHandler();

class OSG_EXPORT StandardNotifyHandler : public NotifyHandler
{
public:
    void notify(osg::NotifySeverity severity, const char *message);
};

#if defined(WIN32) && !defined(__CYGWIN__)

class OSG_EXPORT WinDebugNotifyHandler : public NotifyHandler
{
public:
    void notify(osg::NotifySeverity severity, const char *message);
};

#endif

}

#endif