Mercurial > hg > svcore
view base/RecentFiles.h @ 335:02d2ad95ea52 spectrogram-cache-rejig
* Get storage advice for each cache in an FFT data server. Allows us to be
more confident about the actual memory situation and cut over from memory
to disc part way through an FFT calculation if necessary. StorageAdviser
is now a bit too optimistic though (it's too keen to allocate large numbers
of small blocks in memory).
author | Chris Cannam |
---|---|
date | Tue, 13 Nov 2007 13:54:10 +0000 |
parents | 3b8008d09541 |
children | 6a94bb528e9d |
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ /* Sonic Visualiser An audio file viewer and annotation editor. Centre for Digital Music, Queen Mary, University of London. This file copyright 2006 Chris Cannam. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. See the file COPYING included with this distribution for more information. */ #ifndef _RECENT_FILES_H_ #define _RECENT_FILES_H_ #include <QObject> #include <QString> #include <vector> #include <deque> /** * RecentFiles manages a list of the names of recently-used objects, * saving and restoring that list via QSettings. The names do not * actually have to refer to files. */ class RecentFiles : public QObject { Q_OBJECT public: /** * Construct a RecentFiles object that saves and restores in the * given QSettings group and truncates when the given count of * strings is reached. */ RecentFiles(QString settingsGroup = "RecentFiles", size_t maxCount = 10); virtual ~RecentFiles(); QString getSettingsGroup() const { return m_settingsGroup; } int getMaxCount() const { return m_maxCount; } std::vector<QString> getRecent() const; /** * Add a name that should be treated as a literal string. */ void add(QString name); /** * Add a name that is known to be either a file path or a URL. If * it looks like a URL, add it literally; otherwise treat it as a * file path and canonicalise it appropriately. Also takes into * account the user preference for whether to include temporary * files in the recent files menu: the file will not be added if * the preference is set and the file appears to be a temporary * one. */ void addFile(QString name); signals: void recentChanged(); protected: QString m_settingsGroup; size_t m_maxCount; std::deque<QString> m_names; void read(); void write(); void truncateAndWrite(); }; #endif