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lib/engine/rs_utility.cpp

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+/****************************************************************************
+**
+** This file is part of the LibreCAD project, a 2D CAD program
+**
+** Copyright (C) 2010 R. van Twisk (librecad@rvt.dds.nl)
+** Copyright (C) 2001-2003 RibbonSoft. All rights reserved.
+**
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software 
+** Foundation and appearing in the file gpl-2.0.txt included in the
+** packaging of this file.
+**
+** 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, write to the Free Software
+** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+**
+** This copyright notice MUST APPEAR in all copies of the script!  
+**
+**********************************************************************/
+
+#include <QString>
+#include "rs_utility.h"
+
+
+/**
+ * Converts a double to a string cutting away unnecessary 0's.
+ * e.g. 2.70000  -> 2.7
+ */
+QString RS_Utility::doubleToString(double value, int precision) {
+    QString ret;
+
+    ret.setNum(value, 'f', precision);
+
+    if(ret.contains('.')) {
+        // remove trailing zeros:
+        while(ret.at(ret.length()-1)=='0') {
+            ret.truncate(ret.length()-1);
+        }
+
+        // remove trailing .
+        if(ret.at(ret.length()-1)=='.') {
+            ret.truncate(ret.length()-1);
+        }
+    }
+
+    return ret;
+}
+
+// EOF
+