pjs/gfx/2d/Logging.h

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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Corporation code.
*
* The Initial Developer of the Original Code is Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2011
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Bas Schouten <bschouten@mozilla.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef MOZILLA_GFX_LOGGING_H_
#define MOZILLA_GFX_LOGGING_H_
#include <string>
#include <sstream>
#include <stdio.h>
#include "Point.h"
#ifdef WIN32
#include <windows.h>
#endif
#ifdef PR_LOGGING
#include <prlog.h>
extern PRLogModuleInfo *sGFX2DLog;
#endif
namespace mozilla {
namespace gfx {
const int LOG_DEBUG = 1;
const int LOG_WARNING = 2;
#ifdef PR_LOGGING
inline PRLogModuleLevel PRLogLevelForLevel(int aLevel) {
switch (aLevel) {
case LOG_DEBUG:
return PR_LOG_DEBUG;
case LOG_WARNING:
return PR_LOG_WARNING;
}
return PR_LOG_DEBUG;
}
#endif
extern int sGfxLogLevel;
static void OutputMessage(const std::string &aString, int aLevel) {
#if defined(WIN32) && !defined(PR_LOGGING)
if (aLevel >= sGfxLogLevel) {
::OutputDebugStringA(aString.c_str());
}
#elif defined(PR_LOGGING)
if (PR_LOG_TEST(sGFX2DLog, PRLogLevelForLevel(aLevel))) {
PR_LogPrint(aString.c_str());
}
#else
if (aLevel >= sGfxLogLevel) {
printf(aString.c_str());
}
#endif
}
class NoLog
{
public:
NoLog() {}
~NoLog() {}
template<typename T>
NoLog &operator <<(const T &aLogText) { return *this; }
};
template<int L>
class Log
{
public:
Log() {}
~Log() { mMessage << '\n'; WriteLog(mMessage.str()); }
Log &operator <<(const std::string &aLogText) { mMessage << aLogText; return *this; }
Log &operator <<(unsigned int aInt) { mMessage << aInt; return *this; }
Log &operator <<(const Size &aSize)
{ mMessage << "(" << aSize.width << "x" << aSize.height << ")"; return *this; }
Log &operator <<(const IntSize &aSize)
{ mMessage << "(" << aSize.width << "x" << aSize.height << ")"; return *this; }
private:
void WriteLog(const std::string &aString) {
OutputMessage(aString, L);
}
std::stringstream mMessage;
};
typedef Log<LOG_DEBUG> DebugLog;
typedef Log<LOG_WARNING> WarningLog;
#ifdef GFX_LOG_DEBUG
#define gfxDebug DebugLog
#else
#define gfxDebug if (1) ; else NoLog
#endif
#ifdef GFX_LOG_WARNING
#define gfxWarning WarningLog
#else
#define gfxWarning if (1) ; else NoLog
#endif
}
}
#endif /* MOZILLA_GFX_LOGGING_H_ */