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create/src/Gui/AutoSaver.h

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/***************************************************************************
* Copyright (c) 2015 Werner Mayer <wmayer[at]users.sourceforge.net> *
* *
* This file is part of the FreeCAD CAx development system. *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
* This library 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 Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this library; see the file COPYING.LIB. If not, *
* write to the Free Software Foundation, Inc., 59 Temple Place, *
* Suite 330, Boston, MA 02111-1307, USA *
* *
***************************************************************************/
#ifndef GUI_AUTOSAVER_H
#define GUI_AUTOSAVER_H
#include <QObject>
#include <map>
#include <set>
#include <string>
#include <fastsignals/signal.h>
#include <Base/Writer.h>
namespace App
{
class Document;
class DocumentObject;
class Property;
} // namespace App
namespace Gui
{
class ViewProvider;
class AutoSaveProperty
{
public:
AutoSaveProperty(const App::Document* doc);
~AutoSaveProperty();
int timerId;
std::set<std::string> touched;
std::string dirName;
std::map<std::string, std::string> fileMap;
private:
void slotNewObject(const App::DocumentObject&);
void slotChangePropertyData(const App::Property&);
using Connection = fastsignals::connection;
Connection documentNew;
Connection documentMod;
};
/*!
The class AutoSaver is used to automatically save a document to a temporary file.
@author Werner Mayer
*/
class AutoSaver: public QObject
{
Q_OBJECT
private:
static AutoSaver* self;
AutoSaver(QObject* parent);
~AutoSaver() override;
public:
static AutoSaver* instance();
/*!
Sets the timeout in milliseconds. A value of 0 means that no timer is used.
*/
void setTimeout(int ms);
/*!
Enables or disables to create compreesed recovery files.
*/
void setCompressed(bool on);
protected:
void slotCreateDocument(const App::Document& Doc);
void slotDeleteDocument(const App::Document& Doc);
void timerEvent(QTimerEvent* event) override;
void saveDocument(const std::string&, AutoSaveProperty&);
public Q_SLOTS:
void renameFile(QString dirName, QString file, QString tmpFile);
private:
int timeout; /*!< Timeout in milliseconds */
bool compressed;
std::map<std::string, AutoSaveProperty*> saverMap;
};
class RecoveryWriter: public Base::FileWriter
{
public:
RecoveryWriter(AutoSaveProperty&);
~RecoveryWriter() override;
/*!
This method can be re-implemented in sub-classes to avoid
to write out certain objects. The default implementation
always returns true.
*/
bool shouldWrite(const std::string&, const Base::Persistence*) const override;
void writeFiles() override;
private:
AutoSaveProperty& saver;
};
} // namespace Gui
#endif // GUI_AUTOSAVER_H