tests/auto/qtessellator/dataparser.cpp
changeset 0 1918ee327afb
child 4 3b1da2848fc7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/auto/qtessellator/dataparser.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,161 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include "dataparser.h"
+#include <QString>
+#include <QVector>
+#include <QFile>
+#include <QTextStream>
+
+#include <QtDebug>
+
+static QList<qreal> parseNumbersList(QByteArray::const_iterator &itr)
+{
+    QList<qreal> points;
+    QByteArray temp;
+    while ((*itr) == ' ')
+        ++itr;
+    while (((*itr) >= '0' && (*itr) <= '9') ||
+           (*itr) == '-' || (*itr) == '+') {
+        temp = QByteArray();
+
+        if ((*itr) == '-')
+            temp += *itr++;
+        else if ((*itr) == '+')
+            temp += *itr++;
+        while ((*itr) >= '0' && (*itr) <= '9')
+            temp += *itr++;
+        if ((*itr) == '.')
+            temp += *itr++;
+        while ((*itr) >= '0' && (*itr) <= '9')
+            temp += *itr++;
+        if (( *itr) == 'e') {
+            temp += *itr++;
+            if ((*itr) == '-' ||
+                (*itr) == '+')
+                temp += *itr++;
+        }
+        while ((*itr) >= '0' && (*itr) <= '9')
+            temp += *itr++;
+        while ((*itr) == ' ')
+            ++itr;
+        if ((*itr) == ',')
+            ++itr;
+        points.append(temp.toDouble());
+        //eat the rest of space
+        while ((*itr) == ' ')
+            ++itr;
+    }
+
+    return points;
+}
+
+static QList<QPointF> parsePoints(const QByteArray &line)
+{
+    QList<QPointF> res;
+
+    QByteArray::const_iterator it = line.constBegin();
+    if (*it == ',')
+        ++it;
+    
+    QList<qreal> nums = parseNumbersList(it);
+    QList<qreal>::const_iterator nitr;
+    for (nitr = nums.begin(); nitr != nums.end(); ++nitr) {
+        qreal x = *nitr; ++nitr;
+        Q_ASSERT(nitr != nums.end());
+        qreal y = *nitr;
+        res.append(QPointF(x, y));
+    }
+
+    return res;
+}
+
+QList< QVector<QPointF> > parseData(const QByteArray &contents)
+{
+    QList<QByteArray> lines = contents.split('\n');
+    QList<QByteArray>::const_iterator itr;
+
+    QList< QVector<QPointF> > res;
+    QVector<QPointF> current;
+
+    for (itr = lines.begin(); itr != lines.end(); ++itr) {
+        QByteArray line = (*itr).trimmed();
+        if (line.isEmpty() || line.startsWith('/')) {
+            if (!current.isEmpty()) {
+                res.append(current);
+                current = QVector<QPointF>();
+            }
+            continue;
+        } else {
+            QList<QPointF> lst = parsePoints(line);
+            current << lst.toVector();
+        }
+    }
+    return res;
+}
+
+QList< QVector<QPointF> > parseFile(const QString &fileName)
+{
+    QList< QVector<QPointF> > res;
+    QFile file(fileName);
+
+    if (!file.open(QIODevice::ReadOnly)) {
+        qDebug()<<"couldn't open "<<fileName;
+        return res;
+    }
+
+    QVector<QPointF> current;
+
+    while (!file.atEnd()) {
+        QByteArray line = file.readLine().trimmed();
+        if (line.isEmpty() || line.startsWith('/')) {
+            if (!current.isEmpty()) {
+                res.append(current);
+                current = QVector<QPointF>();
+            }
+            continue;
+        } else {
+            QList<QPointF> lst = parsePoints(line);
+            current << lst.toVector();
+        }
+    }
+
+    return res;
+}