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70 lines
2.2 KiB
70 lines
2.2 KiB
11 years ago
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/*=====================================================================
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QGroundControl Open Source Ground Control Station
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(c) 2009 - 2014 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
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This file is part of the QGROUNDCONTROL project
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QGROUNDCONTROL is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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QGROUNDCONTROL is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with QGROUNDCONTROL. If not, see <http://www.gnu.org/licenses/>.
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======================================================================*/
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/// @file
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/// @brief This class mimics QTemporaryFile. We have our own implementation due to the fact that
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/// QTemporaryFile implemenation differs cross platform making it unusable for our use-case.
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/// Look for bug reports on QTemporaryFile keeping the file locked for details.
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///
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/// @author Don Gagne <don@thegagnes.com>
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#include "QGCTemporaryFile.h"
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#include <QDir>
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#include <QStandardPaths>
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QGCTemporaryFile::QGCTemporaryFile(const QString& fileTemplate, QObject* parent) :
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QFile(parent),
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_template(fileTemplate)
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{
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}
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bool QGCTemporaryFile::open(QFile::OpenMode openMode)
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{
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QDir tempDir(QStandardPaths::writableLocation(QStandardPaths::TempLocation));
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// Generate unique, non-existing filename
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static const char rgDigits[] = "0123456789";
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QString tempFilename;
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do {
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QString uniqueStr;
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for (int i=0; i<6; i++) {
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uniqueStr += rgDigits[qrand() % 10];
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}
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if (_template.contains("XXXXXX")) {
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tempFilename = _template.replace("XXXXXX", uniqueStr, Qt::CaseSensitive);
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} else {
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tempFilename = _template + uniqueStr;
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}
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} while (tempDir.exists(tempFilename));
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setFileName(tempDir.filePath(tempFilename));
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return QFile::open(openMode);
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}
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