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111 lines
2.8 KiB
C++
111 lines
2.8 KiB
C++
/*
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* Copyright (C) 2007 Tobias Koenig <tokoe@kde.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef CACHEDPROVIDER_H
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#define CACHEDPROVIDER_H
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#include <QImage>
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#include <QRunnable>
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#include "potdprovider.h"
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/**
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* This class provides pictures from the local cache.
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*/
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class CachedProvider : public PotdProvider
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{
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Q_OBJECT
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public:
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/**
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* Creates a new cached provider.
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*
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* @param identifier The identifier of the cached picture.
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* @param parent The parent object.
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*/
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CachedProvider( const QString &identifier, QObject *parent );
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/**
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* Destroys the cached provider.
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*/
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~CachedProvider();
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/**
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* Returns the requested image.
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*
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* Note: This method returns only a valid image after the
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* finished() signal has been emitted.
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*/
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virtual QImage image() const;
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/**
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* Returns the identifier of the picture request (name + date).
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*/
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virtual QString identifier() const;
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/**
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* Returns whether a picture with the given @p identifier is cached.
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*/
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static bool isCached( const QString &identifier, bool ignoreAge = false );
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/**
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* Returns a path for the given identifier
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*/
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static QString identifierToPath( const QString &identifier );
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private Q_SLOTS:
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void triggerFinished(const QImage &image);
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private:
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QString mIdentifier;
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QImage mImage;
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};
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class LoadImageThread : public QObject, public QRunnable
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{
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Q_OBJECT
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public:
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LoadImageThread(const QString &filePath);
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void run();
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Q_SIGNALS:
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void done(const QImage &pixmap);
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private:
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QString m_filePath;
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};
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class SaveImageThread : public QObject, public QRunnable
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{
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Q_OBJECT
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public:
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SaveImageThread(const QString &identifier, const QImage &image);
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void run();
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Q_SIGNALS:
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void done( const QString &source, const QString &path, const QImage &img );
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private:
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QImage m_image;
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QString m_identifier;
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};
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#endif
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