From f9dd32c6e356d8a3717b391b667b6cf2b3419baa Mon Sep 17 00:00:00 2001
From: LoRd_MuldeR <mulder2@gmx.de>
Date: Wed, 14 Dec 2016 15:04:23 +0100
Subject: [PATCH] Added function to generate unique file name, using an
 increasing counter.

---
 include/MUtils/Global.h |  3 ++-
 src/Global.cpp          | 30 ++++++++++++++++++++++++++++--
 2 files changed, 30 insertions(+), 3 deletions(-)

diff --git a/include/MUtils/Global.h b/include/MUtils/Global.h
index 3bd3a5a..8807d32 100644
--- a/include/MUtils/Global.h
+++ b/include/MUtils/Global.h
@@ -84,8 +84,9 @@ namespace MUtils
 	MUTILS_API quint32 next_rand32(void);
 	MUTILS_API quint64 next_rand64(void);
 
-	//Temp File Name
+	//File Name
 	MUTILS_API QString make_temp_file(const QString &basePath, const QString &extension, const bool placeholder = false);
+	MUTILS_API QString make_unique_file(const QString &basePath, const QString &baseName, const QString &extension, const bool fancy = false);
 
 	//Parity
 	MUTILS_API bool parity(quint32 value);
diff --git a/src/Global.cpp b/src/Global.cpp
index 0c6260a..a9a9f4e 100644
--- a/src/Global.cpp
+++ b/src/Global.cpp
@@ -112,7 +112,7 @@ QString MUtils::rand_str(const bool &bLong)
 }
 
 ///////////////////////////////////////////////////////////////////////////////
-// GET TEMP FILE NAME
+// GENERATE FILE NAME
 ///////////////////////////////////////////////////////////////////////////////
 
 QString MUtils::make_temp_file(const QString &basePath, const QString &extension, const bool placeholder)
@@ -138,10 +138,36 @@ QString MUtils::make_temp_file(const QString &basePath, const QString &extension
 		}
 	}
 
-	qWarning("Failed to generate unique temp file name!");
+	qWarning("Failed to generate temp file name!");
 	return QString();
 }
 
+QString MUtils::make_unique_file(const QString &basePath, const QString &baseName, const QString &extension, const bool fancy)
+{
+	quint32 n = fancy ? 2 : 0;
+	QString fileName = fancy ? QString("%1/%2.%3").arg(basePath, baseName, extension) : QString();
+	while (fileName.isEmpty() || QFileInfo(fileName).exists())
+	{
+		if (n <= quint32(USHRT_MAX))
+		{
+			if (fancy)
+			{
+				fileName = QString("%1/%2 (%3).%4").arg(basePath, baseName, QString::number(n++), extension);
+			}
+			else
+			{
+				fileName = QString("%1/%2.%3.%4").arg(basePath, baseName, QString::number(n++, 16).rightJustified(4, QLatin1Char('0')), extension);
+			}
+		}
+		else
+		{
+			qWarning("Failed to generate unique file name!");
+			return QString();
+		}
+	}
+	return fileName;
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 // COMPUTE PARITY
 ///////////////////////////////////////////////////////////////////////////////
-- 
2.11.4.GIT