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/***************************************************************************
copyright : (C) 2005-2006 by Robby Stephenson
email : [email protected]
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of version 2 of the GNU General Public License as *
* published by the Free Software Foundation; *
* *
***************************************************************************/
// much of this code is adapted from libkdepim
// which is GPL licensed, Copyright (c) 2004 Till Adam
#ifndef TELLICO_PROGRESSMANAGER_H
#define TELLICO_PROGRESSMANAGER_H
#include <qobject.h>
#include <qmap.h>
#include <qguardedptr.h>
namespace Tellico {
class ProgressManager;
/**
* @author Robby Stephenson
*/
class ProgressItem : public QObject {
Q_OBJECT
friend class ProgressManager;
public:
class Done {
public:
Done(const QObject* obj) : m_object(obj) {}
~Done();
private:
const QObject* m_object;
};
bool canCancel() const { return m_canCancel; }
const QString& label() const { return m_label; }
void setLabel(const QString& label);
// uint progress() const { return m_total ? (100*m_completed/m_total) : 0; }
uint progress() const { return m_progress; }
void setProgress(uint steps);
uint totalSteps() const { return m_total; }
void setTotalSteps(uint steps);
void setDone();
void cancel();
signals:
void signalProgress(ProgressItem* item);
void signalDone(ProgressItem* item);
void signalCancelled(ProgressItem* item);
void signalTotalSteps(ProgressItem* item);
protected:
/* Only to be used by the ProgressManager */
ProgressItem(const QString& label, bool canCancel);
virtual ~ProgressItem();
private:
QString m_label;
bool m_canCancel;
uint m_progress;
uint m_total;
bool m_cancelled;
};
/**
* @author Robby Stephenson
*/
class ProgressManager : public QObject {
Q_OBJECT
public:
virtual ~ProgressManager() {}
static ProgressManager* self() { if(!s_self) s_self = new ProgressManager(); return s_self; }
ProgressItem& newProgressItem(const QObject* owner, const QString& label, bool canCancel = false) {
return newProgressItemImpl(owner, label, canCancel);
}
void setProgress(const QObject* owner, uint steps);
void setTotalSteps(const QObject* owner, uint steps);
void setDone(const QObject* owner);
bool anyCanBeCancelled() const;
signals:
// void signalItemAdded(ProgressItem* item);
// void signalItemProgress(ProgressItem* item);
// void signalItemDone(ProgressItem* item);
// void signalItemCancelled(ProgressItem* item);
void signalTotalProgress(uint progress);
public slots:
void slotCancelAll();
private slots:
void slotItemDone(ProgressItem* item);
void slotUpdateTotalProgress();
private:
ProgressManager();
ProgressManager(const ProgressManager&); // no copies
ProgressItem& newProgressItemImpl(const QObject* owner, const QString& label, bool canCancel);
void setDone(ProgressItem* item);
typedef QMap<QGuardedPtr<const QObject>, QGuardedPtr<ProgressItem> > ProgressMap;
ProgressMap m_items;
static ProgressManager* s_self;
};
} // end namespace
#endif
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