mirror of
https://github.com/transmission/transmission
synced 2025-02-23 06:30:38 +00:00
aa9b752cd9
* refactor: don't load the same stock more than once Some actions share an icon -- for example, "start all", "start now", and "start" each use "media-playback-start". When this happens, get the icon once and cache it to avoid hitting the disk more often than necessary. In addition, the statusbar's network transfer icon was being reloaded in a periodic upkeep timer, reloading with QIcon::fromTheme each time. Only give icons are needed, so load them once and cache them. * refactor: better lookup of torrent mime-type icons filename-to-mime-type and mime-type-to-icon lookups are both expensive, so do a better job of detecting top-level folders and caching the icons based on file suffixes. This also lets find a good mime icon even if the torrent doesn't have its 'files' property populated yet from RPC.
101 lines
2.4 KiB
C++
101 lines
2.4 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 getFileIcon();
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static QIcon getFolderIcon();
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static QIcon guessMimeIcon(QString const& filename);
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static QIcon getIconFromIndex(QModelIndex const& index);
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// Test if string is UTF-8 or not
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static bool isValidUtf8(char const* s);
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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* view, QString const& text);
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static int measureHeaderItem(QHeaderView* 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(QString::fromUtf8("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 (QChar 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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static QString const ftp = QString::fromUtf8("ftp://");
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static QString const http = QString::fromUtf8("http://");
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static QString const 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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