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author | Michele Calgaro <michele.calgaro@yahoo.it> | 2024-11-22 18:41:30 +0900 |
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committer | Michele Calgaro <michele.calgaro@yahoo.it> | 2024-11-22 20:55:03 +0900 |
commit | 5bed6e4a4c916a97f8fe4d1b07f7eecf4d733b90 (patch) | |
tree | f89cc49efc9ca1d0e1579ecb079ee7e7088ff8c8 /src/libs/threadimageio/loadsavetask.h | |
parent | 0bfbf616d9c1fd7abb1bd02732389ab35e5f8771 (diff) | |
download | digikam-5bed6e4a4c916a97f8fe4d1b07f7eecf4d733b90.tar.gz digikam-5bed6e4a4c916a97f8fe4d1b07f7eecf4d733b90.zip |
Rename 'digikam' folder to 'src'
Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
(cherry picked from commit ee0d99607c14cb63d3ebdb3a970b508949fa8219)
Diffstat (limited to 'src/libs/threadimageio/loadsavetask.h')
-rw-r--r-- | src/libs/threadimageio/loadsavetask.h | 360 |
1 files changed, 360 insertions, 0 deletions
diff --git a/src/libs/threadimageio/loadsavetask.h b/src/libs/threadimageio/loadsavetask.h new file mode 100644 index 00000000..833f86fa --- /dev/null +++ b/src/libs/threadimageio/loadsavetask.h @@ -0,0 +1,360 @@ +/* ============================================================ + * + * This file is a part of digiKam project + * http://www.digikam.org + * + * Date : 2006-01-20 + * Description : image file IO threaded interface. + * + * Copyright (C) 2005-2007 by Marcel Wiesweg <marcel.wiesweg@gmx.de> + * Copyright (C) 2005-2007 by Gilles Caulier <caulier dot gilles at gmail dot com> + * + * 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, or (at your option) + * any later version. + * + * This program 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. + * + * ============================================================ */ + + +#ifndef LOAD_SAVE_TASK_H +#define LOAD_SAVE_TASK_H + +// TQt includes. + +#include <tqevent.h> + +// Local includes. + +#include "dimg.h" +#include "dimgloaderobserver.h" +#include "loadingdescription.h" +#include "loadingcache.h" + +namespace Digikam +{ + +class LoadSaveThread; + +class LoadSaveTask +{ +public: + + LoadSaveTask(LoadSaveThread* thread) + : m_thread(thread) + {}; + virtual ~LoadSaveTask() {}; + + virtual void execute() = 0; + + enum TaskType + { + TaskTypeLoading, + TaskTypeSaving + }; + + virtual TaskType type() = 0; + +protected: + + LoadSaveThread *m_thread; +}; + +//--------------------------------------------------------------------------------------------------- + +class NotifyEvent : public TQCustomEvent +{ +public: + + static TQEvent::Type notifyEventId() + { return TQEvent::User; }; + + NotifyEvent() : TQCustomEvent(notifyEventId()) {}; + + virtual void notify(LoadSaveThread *thread) = 0; +}; + +//--------------------------------------------------------------------------------------------------- + +class ProgressEvent : public NotifyEvent +{ +public: + + ProgressEvent(float progress) + : m_progress(progress) + {}; + +protected: + + float m_progress; +}; + +//--------------------------------------------------------------------------------------------------- + +class LoadingProgressEvent : public ProgressEvent +{ +public: + + LoadingProgressEvent(const LoadingDescription &loadingDescription, float progress) + : ProgressEvent(progress), + m_loadingDescription(loadingDescription) + {}; + + virtual void notify(LoadSaveThread *thread); + +private: + + LoadingDescription m_loadingDescription; +}; + +//--------------------------------------------------------------------------------------------------- + +class SavingProgressEvent : public ProgressEvent +{ +public: + + SavingProgressEvent(const TQString& filePath, float progress) + : ProgressEvent(progress), + m_filePath(filePath) + {}; + + virtual void notify(LoadSaveThread *thread); + +private: + + TQString m_filePath; +}; + +//--------------------------------------------------------------------------------------------------- + +class StartedLoadingEvent : public NotifyEvent +{ +public: + + StartedLoadingEvent(const LoadingDescription &loadingDescription) + : m_loadingDescription(loadingDescription) + {}; + + virtual void notify(LoadSaveThread *thread); + +private: + + LoadingDescription m_loadingDescription; +}; + +//--------------------------------------------------------------------------------------------------- + +class StartedSavingEvent : public NotifyEvent +{ +public: + + StartedSavingEvent(const TQString& filePath) + : m_filePath(filePath) + {}; + + virtual void notify(LoadSaveThread *thread); + +private: + + TQString m_filePath; +}; + +//--------------------------------------------------------------------------------------------------- + +class LoadedEvent : public NotifyEvent +{ +public: + + LoadedEvent(const LoadingDescription &loadingDescription, DImg &img) + : m_loadingDescription(loadingDescription), m_img(img) + {}; + + virtual void notify(LoadSaveThread *thread); + +private: + + LoadingDescription m_loadingDescription; + DImg m_img; +}; + +//--------------------------------------------------------------------------------------------------- + +class MoreCompleteLoadingAvailableEvent : public NotifyEvent +{ +public: + + MoreCompleteLoadingAvailableEvent(const LoadingDescription &oldLoadingDescription, + const LoadingDescription &newLoadingDescription) + : m_oldDescription(oldLoadingDescription), m_newDescription(newLoadingDescription) + {}; + + virtual void notify(LoadSaveThread *thread); + +private: + + LoadingDescription m_oldDescription; + LoadingDescription m_newDescription; +}; + +//--------------------------------------------------------------------------------------------------- + +class LoadingTask : public LoadSaveTask, public DImgLoaderObserver +{ +public: + + enum LoadingTaskStatus + { + LoadingTaskStatusLoading, + LoadingTaskStatusPreloading, + LoadingTaskStatusStopping + }; + + LoadingTask(LoadSaveThread* thread, LoadingDescription description, + LoadingTaskStatus loadingTaskStatus = LoadingTaskStatusLoading) + : LoadSaveTask(thread), m_loadingDescription(description), m_loadingTaskStatus(loadingTaskStatus) + {} + + // LoadSaveTask + + virtual void execute(); + virtual TaskType type(); + + // DImgLoaderObserver + + virtual void progressInfo(const DImg *, float progress); + virtual bool continueQuery(const DImg *); + virtual bool isShuttingDown(); + + virtual void setStatus(LoadingTaskStatus status); + + LoadingTaskStatus status() const + { + return m_loadingTaskStatus; + } + + TQString filePath() const + { + return m_loadingDescription.filePath; + } + + LoadingDescription loadingDescription() const + { + return m_loadingDescription; + } + +protected: + + LoadingDescription m_loadingDescription; + LoadingTaskStatus m_loadingTaskStatus; +}; + +//--------------------------------------------------------------------------------------------------- + +class SharedLoadingTask : public LoadingTask, public LoadingProcess, public LoadingProcessListener +{ +public: + + SharedLoadingTask(LoadSaveThread* thread, LoadingDescription description, + LoadSaveThread::AccessMode mode = LoadSaveThread::AccessModeReadWrite, + LoadingTaskStatus loadingTaskStatus = LoadingTaskStatusLoading) + : LoadingTask(thread, description, loadingTaskStatus), + m_accessMode(mode), m_completed(false), m_usedProcess(0) + {} + + virtual void execute(); + virtual void progressInfo(const DImg *, float progress); + virtual bool continueQuery(const DImg *); + virtual void setStatus(LoadingTaskStatus status); + + // LoadingProcess + + virtual bool completed(); + virtual TQString filePath(); + virtual TQString cacheKey(); + virtual void addListener(LoadingProcessListener *listener); + virtual void removeListener(LoadingProcessListener *listener); + virtual void notifyNewLoadingProcess(LoadingProcess *process, LoadingDescription description); + + // LoadingProcessListener + + virtual bool querySendNotifyEvent(); + virtual TQObject *eventReceiver(); + virtual LoadSaveThread::AccessMode accessMode(); + +protected: + + LoadSaveThread::AccessMode m_accessMode; + bool m_completed; + LoadingProcess *m_usedProcess; + TQPtrList<LoadingProcessListener> m_listeners; +}; + +//--------------------------------------------------------------------------------------------------- + +class SavedEvent : public NotifyEvent +{ +public: + + SavedEvent(const TQString &filePath, bool success) + : m_filePath(filePath), m_success(success) + {}; + + virtual void notify(LoadSaveThread *thread); + +private: + + TQString m_filePath; + bool m_success; +}; + +//--------------------------------------------------------------------------------------------------- + +class SavingTask : public LoadSaveTask, public DImgLoaderObserver +{ +public: + + enum SavingTaskStatus + { + SavingTaskStatusSaving, + SavingTaskStatusStopping + }; + + SavingTask(LoadSaveThread* thread, DImg &img, const TQString &filePath, const TQString &format) + : LoadSaveTask(thread), m_img(img), m_filePath(filePath), m_format(format) + {}; + + virtual void execute(); + virtual TaskType type(); + + virtual void progressInfo(const DImg *, float progress); + virtual bool continueQuery(const DImg *); + + virtual void setStatus(SavingTaskStatus status); + + SavingTaskStatus status() const + { + return m_savingTaskStatus; + } + + TQString filePath() const + { + return m_filePath; + } + +private: + + DImg m_img; + TQString m_filePath; + TQString m_format; + SavingTaskStatus m_savingTaskStatus; +}; + +} // namespace Digikam + +#endif // LOAD_SAVE_TASK_H |