96 lines
2.3 KiB
C++
96 lines
2.3 KiB
C++
/*
|
|
* This file is part of RawTherapee.
|
|
*
|
|
* Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
|
|
*
|
|
* RawTherapee 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 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* RawTherapee is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with RawTherapee. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#ifndef _PREVIEWLOADER_
|
|
#define _PREVIEWLOADER_
|
|
|
|
#include <set>
|
|
#include <glibmm.h>
|
|
#include "filebrowserentry.h"
|
|
|
|
class PreviewLoaderListener
|
|
{
|
|
public:
|
|
|
|
/**
|
|
* @brief a preview is ready
|
|
*
|
|
* @param dir_id directory ID this is for
|
|
* @param fd entry
|
|
*/
|
|
virtual void previewReady (int dir_id, FileBrowserEntry* fd) {}
|
|
|
|
/**
|
|
* @brief all previews have finished loading
|
|
*/
|
|
virtual void previewsFinished (int dir_id_) {}
|
|
};
|
|
|
|
class PreviewLoader
|
|
{
|
|
public:
|
|
|
|
PreviewLoader(const PreviewLoader&) = delete;
|
|
|
|
/**
|
|
* @brief Singleton entry point.
|
|
*
|
|
* @note expects to be called inside gtk thread lock
|
|
*
|
|
* @return Pointer to thumbnail image updater.
|
|
*/
|
|
static PreviewLoader* getInstance(void);
|
|
|
|
/**
|
|
* @brief Add an thumbnail image update request.
|
|
*
|
|
* Code will add the request to the queue and, if needed, start a pool
|
|
* thread to process it.
|
|
*
|
|
* @param dir_id directory we're looking at
|
|
* @param dir_entry entry in it
|
|
* @param l listener
|
|
*/
|
|
void add(int dir_id, const Glib::ustring& dir_entry, PreviewLoaderListener* l);
|
|
|
|
/**
|
|
* @brief Stop processing and remove all jobs.
|
|
*
|
|
* Will not return till all jobs have completed.
|
|
*
|
|
* @note expects to be called inside gtk thread lock
|
|
*/
|
|
void removeAllJobs(void);
|
|
|
|
private:
|
|
|
|
PreviewLoader();
|
|
|
|
class Impl;
|
|
Impl* impl_;
|
|
};
|
|
|
|
/**
|
|
* @brief Singleton boiler plate.
|
|
*
|
|
* To use: \c previewLoader->start() ,
|
|
*/
|
|
#define previewLoader PreviewLoader::getInstance()
|
|
|
|
#endif
|