From 08c8afc8f045f92ea4ec20d93fb4f51a70b3bc87 Mon Sep 17 00:00:00 2001
From: Felix Geyer <debfx@fobos.de>
Date: Mon, 9 Apr 2012 23:53:46 +0200
Subject: [PATCH] Add a Tools class with a humanReadableFileSize() method.

---
 src/core/Tools.cpp | 37 +++++++++++++++++++++++++++++++++++++
 src/core/Tools.h   | 29 +++++++++++++++++++++++++++++
 2 files changed, 66 insertions(+)
 create mode 100644 src/core/Tools.cpp
 create mode 100644 src/core/Tools.h

diff --git a/src/core/Tools.cpp b/src/core/Tools.cpp
new file mode 100644
index 000000000..263e557fb
--- /dev/null
+++ b/src/core/Tools.cpp
@@ -0,0 +1,37 @@
+/*
+ *  Copyright (C) 2012 Felix Geyer <debfx@fobos.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 2 or (at your option)
+ *  version 3 of the License.
+ *
+ *  This program 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
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "Tools.h"
+
+#include <QtCore/QLocale>
+#include <QtCore/QStringList>
+
+QString Tools::humanReadableFileSize(qint64 bytes)
+{
+    double size = bytes;
+
+    QStringList units = QStringList() << "B" << "KiB" << "MiB" << "GiB";
+    int i = 0;
+    int maxI = units.size() - 1;
+
+    while ((size >= 1024) && (i < maxI)) {
+        size /= 1024;
+        i++;
+    }
+
+    return QString("%1 %2").arg(QLocale().toString(size, 'f', 2), units.at(i));
+}
diff --git a/src/core/Tools.h b/src/core/Tools.h
new file mode 100644
index 000000000..eb5c3c17d
--- /dev/null
+++ b/src/core/Tools.h
@@ -0,0 +1,29 @@
+/*
+ *  Copyright (C) 2012 Felix Geyer <debfx@fobos.de>
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 2 or (at your option)
+ *  version 3 of the License.
+ *
+ *  This program 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
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef KEEPASSX_TOOLS_H
+#define KEEPASSX_TOOLS_H
+
+#include <QtCore/QString>
+
+namespace Tools {
+
+QString humanReadableFileSize(qint64 bytes);
+
+}
+
+#endif // KEEPASSX_TOOLS_H