89 lines
2.2 KiB
C++
89 lines
2.2 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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*/
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#pragma once
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#include <cctype> // isxdigit()
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#include <QPointer>
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#include <QRect>
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#include <QString>
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class QAbstractItemView;
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class QColor;
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class QHeaderView;
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class QIcon;
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class QModelIndex;
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class Utils
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{
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public:
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static QIcon guessMimeIcon (const QString& filename);
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static QIcon getIconFromIndex (const QModelIndex& index);
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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 int measureViewItem (QAbstractItemView * view, const QString& text);
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static int measureHeaderItem (QHeaderView * view, const QString& text);
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static QColor getFadedColor (const QColor& color);
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template<typename DialogT, typename... ArgsT>
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static void
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openDialog (QPointer<DialogT>& dialog, ArgsT&&... args)
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{
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if (dialog.isNull ())
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{
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dialog = new DialogT (std::forward<ArgsT> (args)...);
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dialog->setAttribute (Qt::WA_DeleteOnClose);
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dialog->show ();
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}
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else
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{
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dialog->raise ();
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dialog->activateWindow ();
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}
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}
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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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