OpenSceneGraph/include/osg/Notify
Robert Osfield 247cb3ff7e Checked in Macro Jez's additions to osgText to support .osg IO make it
a fully functioning NodeKit.

Also reimplement notify() to try an prevent a crash which has been caused by
to objects in notify.cpp being initiliazed twice, the second time the auto_ptr
holding the dev/null ofstream was being initilized to 0.
2002-06-11 18:41:57 +00:00

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//C++ header - Open Scene Graph - Copyright (C) 1998-2001 Robert Osfield
//Distributed under the terms of the GNU Library General Public License (LGPL)
//as published by the Free Software Foundation.
#ifndef OSG_NOTIFY
#define OSG_NOTIFY 1
#include <osg/Export>
#include <iostream>
#include <fstream>
#include <memory>
namespace osg {
/** Range of notify levels from DEBUG_FP through to FATAL, ALWAYS
* is reserved for forcing the absorption of all messages. The
* keywords are also used verbatim when specified by the environmental
* variable OSGNOTIFYLEVEL. See documentation on osg::notify() for
* further details.
*/
enum NotifySeverity {
ALWAYS=0,
FATAL=1,
WARN=2,
NOTICE=3,
INFO=4,
DEBUG_INFO=5,
DEBUG_FP=6
};
/** global notify level. */
//SG_EXPORT extern NotifySeverity g_NotifyLevel;
/** global notify nul stream. added for Mac OSX */
//SG_EXPORT extern std::auto_ptr<std::ofstream> g_NotifyNulStream;
/** global notify nul stream. added for Mac OSX */
//SG_EXPORT extern bool g_NotifyInit;
/** set the notify level, overriding the default or value set by
* the environmental variable OSGNOTIFYLEVEL.
*/
SG_EXPORT extern void setNotifyLevel(NotifySeverity severity);
/** get the notify level. */
SG_EXPORT extern NotifySeverity getNotifyLevel();
/** initialize notify level. */
SG_EXPORT extern bool initNotifyLevel();
/** notify messaging function for providing fatal through to verbose
* debugging messages. Level of messages sent to the console can
* be controlled by setting the NotifyLevel either within your
* application or via the an environmental variable. For instance
* setenv OSGNOTIFYLEVEL DEBUG (for tsh), export OSGNOTIFYLEVEL=DEBUG
* (for bourne shell) or set OSGNOTIFYLEVEL=DEBUG (for Windows) all
* set tell the osg to redirect all debugging and more important messages
* to the console (useful for debugging :-) setting ALWAYS will force
* all messages to be absorbed, which might be appropriate for final
* applications. Default NotifyLevel is NOTICE. Check the enum
* NotifySeverity for full range of possibilities. To use the notify
* with your code simply use the notify function as a normal file
* stream (like cout) i.e osg::notify(osg::DEBUG) << "Hello Bugs!"<<endl;
*/
//
// PJA MAC OSX 30-09-01
// previous implementation was causing Mac OSX to misbehave. This version
// places less stress on compiler and runs on Mac
SG_EXPORT extern std::ostream& notify(const NotifySeverity severity);
// {
// static bool initilized = false;
// if (!initilized) initilized = initNotifyLevel();
//
// if (severity<=g_NotifyLevel)
// {
// if (severity<=osg::WARN) return std::cerr;
// else return std::cout;
// }
// cout << "doing a notify to null stream "<<osg::g_NotifyLevel<<" "<<osg::g_NotifyNulStream.get()<<" "<<osg::g_NotifyInit<<endl;
// //if (osg::g_NotifyNulStream.get()==0L) abort();
// return std::cout;
// //return *osg::g_NotifyNulStream;
// }
inline std::ostream& notify(void) { return notify(osg::INFO); }
}
#endif