diff -r aaeeca1f15af -r e8d784ac1a4b inc/ScreensaverUtils.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/inc/ScreensaverUtils.h	Wed Sep 01 12:30:40 2010 +0100
@@ -0,0 +1,157 @@
+/*
+* Copyright (c) 2003 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:   Screensaver utilities collection
+*
+*/
+
+
+#ifndef C_SCREENSAVERUTILS_H
+#define C_SCREENSAVERUTILS_H
+
+// ========== LOGGING MACROS ===============================
+
+#ifdef USE_LOGGER
+
+#include <e32std.h>
+#include <e32def.h>
+#include <eikenv.h>
+#include <flogger.h>
+
+
+/* logging macros usage:
+
+// set logging on in mmp file...
+MACRO USE_LOGGER
+#ifdef WINS
+MACRO USE_RDEBUG
+#endif
+
+
+void CTestAppUi::ConstructL()
+{
+// creates log directory and log file on app startup.
+// prints starting banner...
+SCRLOGGER_CREATE;
+
+// entering to function...
+SCRLOGGER_ENTERFN("ConstructL()");
+
+TInt number = 42;
+TFileName file;
+file = "something" ....
+
+// print variable number of parameters...
+// Note: use _L macro for format string!
+SCRLOGGER_WRITEF(_L("SCR: number = %d, file = %S"), number, &file);
+
+// print just a string (no _L macro here!)
+SCRLOGGER_WRITE("Hello world!");
+
+// leave from function...
+SCRLOGGER_LEAVEFN("ConstructL()");
+}
+
+CTestAppUi::~CTestAppUi()
+{
+// print app exit banner when application exits.
+SCRLOGGER_DELETE;
+}
+
+*/
+
+#ifdef USE_RDEBUG
+
+_LIT(KSCRLogBanner, "Screensaver log start");
+_LIT(KSCRLogEnterFn, "SCR: enter --> %S");
+_LIT(KSCRLogLeaveFn, "SCR: leave <-- %S");
+_LIT(KSCRLogWrite, "SCR: %S");
+_LIT(KSCRLogTag, "SCR: ");
+_LIT(KSCRLogExit, "Screensaver log end");
+_LIT(KSCRLogTimeFormatString, "%H:%T:%S:%*C2");
+
+#define SCRLOGGER_CREATE             {RDebug::Print(KSCRLogBanner);}
+#define SCRLOGGER_DELETE             {RDebug::Print(KSCRLogExit);}
+#define SCRLOGGER_ENTERFN(a)         {_LIT(temp, a); RDebug::Print(KSCRLogEnterFn, &temp);}
+#define SCRLOGGER_LEAVEFN(a)         {_LIT(temp, a); RDebug::Print(KSCRLogLeaveFn, &temp);}
+#define SCRLOGGER_WRITE(a)           {_LIT(temp, a); RDebug::Print(KSCRLogWrite, &temp);}
+#define SCRLOGGER_WRITE_TIMESTAMP(a) {_LIT(temp, a); TTime time; time.HomeTime(); TBuf<256> buffer; time.FormatL(buffer, KSCRLogTimeFormatString); buffer.Insert(0, temp); buffer.Insert(0, KSCRLogTag); RDebug::Print(buffer); }
+#define SCRLOGGER_WRITEF             RDebug::Print
+
+#else
+
+_LIT(KSCRLogDir, "SCR");
+_LIT(KSCRLogFile, "SCR.txt");
+_LIT8(KSCRLogBanner, "Screensaver log start");
+_LIT8(KSCRLogEnterFn, "SCR: -> %S");
+_LIT8(KSCRLogLeaveFn, "SCR: <- %S");
+_LIT8(KSCRLogExit, "Screensaver log end");
+_LIT(KSCRLogTimeFormatString, "%H:%T:%S:%*C2");
+
+#define SCRLOGGER_CREATE             {FCreate();}
+#define SCRLOGGER_DELETE             {RFileLogger::Write(KSCRLogDir, KSCRLogFile, EFileLoggingModeAppend, KSCRLogExit);}
+#define SCRLOGGER_ENTERFN(a)         {_LIT8(temp, a); RFileLogger::WriteFormat(KSCRLogDir, KSCRLogFile, EFileLoggingModeAppend, KSCRLogEnterFn, &temp);}
+#define SCRLOGGER_LEAVEFN(a)         {_LIT8(temp, a); RFileLogger::WriteFormat(KSCRLogDir, KSCRLogFile, EFileLoggingModeAppend, KSCRLogLeaveFn, &temp);}
+#define SCRLOGGER_WRITE(a)           {_LIT(temp, a); RFileLogger::Write(KSCRLogDir, KSCRLogFile, EFileLoggingModeAppend, temp);}
+#define SCRLOGGER_WRITE_TIMESTAMP(a) {_LIT(temp, a); TTime time; time.HomeTime(); TBuf<256> buffer; time.FormatL(buffer, KSCRLogTimeFormatString); buffer.Insert(0, temp); RFileLogger::Write(KSCRLogDir, KSCRLogFile, EFileLoggingModeAppend, buffer); }
+#define SCRLOGGER_WRITEF             FPrint
+
+inline void FPrint(const TRefByValue<const TDesC> aFmt, ...)
+    {
+    VA_LIST list;
+    VA_START(list, aFmt);
+    RFileLogger::WriteFormat(KSCRLogDir, KSCRLogFile, EFileLoggingModeAppend, aFmt, list);
+    }
+
+inline void FPrint(const TDesC& aDes)
+    {
+    RFileLogger::WriteFormat(KSCRLogDir, KSCRLogFile, EFileLoggingModeAppend, aDes);
+    }
+
+inline void FHex(const TUint8* aPtr, TInt aLen)
+    {
+    RFileLogger::HexDump(KSCRLogDir, KSCRLogFile, EFileLoggingModeAppend, 0, 0, aPtr, aLen);
+    }
+
+inline void FHex(const TDesC8& aDes)
+    {
+    FHex(aDes.Ptr(), aDes.Length());
+    }
+
+inline void FCreate()
+    {
+    TFileName path(_L("c:\\logs\\"));
+    path.Append(KSCRLogDir);
+    path.Append(_L("\\"));
+    RFs& fs = CEikonEnv::Static()->FsSession();
+    fs.MkDirAll(path);
+    RFileLogger::WriteFormat(KSCRLogDir, KSCRLogFile, EFileLoggingModeOverwrite, KSCRLogBanner);
+    }
+
+#endif // USE_RDEBUG
+
+#else // USE_LOGGER
+
+inline void FPrint(const TRefByValue<const TDesC> /*aFmt*/, ...) { };
+
+#define SCRLOGGER_CREATE
+#define SCRLOGGER_DELETE
+#define SCRLOGGER_ENTERFN(a)
+#define SCRLOGGER_LEAVEFN(a)
+#define SCRLOGGER_WRITE(a)
+#define SCRLOGGER_WRITEF 1 ? ((void)0) : FPrint
+#define SCRLOGGER_WRITE_TIMESTAMP(a)
+
+#endif // USE_LOGGER
+
+#endif // C_SCREENSAVERUTILS_H