114 lines
2.3 KiB
C++
114 lines
2.3 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 <functional>
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#include <QHash>
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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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#if QT_VERSION < QT_VERSION_CHECK(5, 14, 0)
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namespace std
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{
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template<>
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struct hash<QString>
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{
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std::size_t operator()(QString const& s) const
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{
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return qHash(s);
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}
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};
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} // namespace std
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#endif
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class Utils
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{
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public:
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static QIcon getIconFromIndex(QModelIndex const& index);
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static QString removeTrailingDirSeparator(QString const& 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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{
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qSwap(dx1, dx2);
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}
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rect.adjust(dx1, 0, -dx2, 0);
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}
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static int measureViewItem(QAbstractItemView const* view, QString const& text);
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static int measureHeaderItem(QHeaderView const* view, QString const& text);
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static QColor getFadedColor(QColor const& color);
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template<typename DialogT, typename... ArgsT>
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static void 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(QString const& s)
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{
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return s.startsWith(QStringLiteral("magnet:?"));
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}
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static bool isHexHashcode(QString const& s)
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{
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if (s.length() != 40)
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{
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return false;
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}
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for (auto const& ch : s)
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{
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if (!isxdigit(ch.unicode()))
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{
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return false;
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}
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}
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return true;
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}
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static bool isUriWithSupportedScheme(QString const& s)
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{
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return s.startsWith(QStringLiteral("ftp://")) || s.startsWith(QStringLiteral("http://")) ||
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s.startsWith(QStringLiteral("https://"));
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}
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};
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