summaryrefslogtreecommitdiffstats
path: root/src/libs/threadimageio/loadsavetask.h
diff options
context:
space:
mode:
authorMichele Calgaro <michele.calgaro@yahoo.it>2024-11-22 18:41:30 +0900
committerMichele Calgaro <michele.calgaro@yahoo.it>2024-11-22 20:55:03 +0900
commit5bed6e4a4c916a97f8fe4d1b07f7eecf4d733b90 (patch)
treef89cc49efc9ca1d0e1579ecb079ee7e7088ff8c8 /src/libs/threadimageio/loadsavetask.h
parent0bfbf616d9c1fd7abb1bd02732389ab35e5f8771 (diff)
downloaddigikam-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.h360
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