75 lines
1.6 KiB
C++
75 lines
1.6 KiB
C++
/*
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* This file Copyright (C) 2009-2015 Mnemosyne LLC
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*
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* It may be used under the GNU GPL versions 2 or 3
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* or any future license endorsed by Mnemosyne LLC.
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*
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* $Id$
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*/
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#ifndef QTR_UTILS_H
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#define QTR_UTILS_H
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#include <cctype> // isxdigit()
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#include <QIcon>
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#include <QObject>
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#include <QRect>
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#include <QString>
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#include "Speed.h"
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class QColor;
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class Utils: public QObject
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{
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Q_OBJECT
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public:
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Utils () {}
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virtual ~Utils () {}
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public:
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static QIcon guessMimeIcon (const QString& filename);
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// Test if string is UTF-8 or not
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static bool isValidUtf8 (const char *s);
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static QString removeTrailingDirSeparator (const QString& path);
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static void narrowRect (QRect& rect, int dx1, int dx2, Qt::LayoutDirection direction)
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{
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if (direction == Qt::RightToLeft)
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qSwap (dx1, dx2);
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rect.adjust (dx1, 0, -dx2, 0);
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}
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static QColor getFadedColor (const QColor& color);
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///
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/// URLs
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///
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static bool isMagnetLink (const QString& s)
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{
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return s.startsWith (QString::fromUtf8 ("magnet:?"));
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}
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static bool isHexHashcode (const QString& s)
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{
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if (s.length() != 40)
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return false;
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for (const QChar ch: s) if (!isxdigit (ch.unicode())) return false;
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return true;
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}
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static bool isUriWithSupportedScheme (const QString& s)
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{
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static const QString ftp = QString::fromUtf8 ("ftp://");
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static const QString http = QString::fromUtf8 ("http://");
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static const QString https = QString::fromUtf8 ("https://");
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return s.startsWith(http) || s.startsWith(https) || s.startsWith(ftp);
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}
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};
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#endif // QTR_UTILS_H
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