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    41 

    42 #ifndef AUTOSAVER_H

    43 #define AUTOSAVER_H

    44 

    45 #include <QtCore/QObject>

    46 #include <QtCore/QBasicTimer>

    47 #include <QtCore/QTime>

    48 

    49 /*

    50     This class will call the save() slot on the parent object when the parent changes.

    51     It will wait several seconds after changed() to combining multiple changes and

    52     prevent continuous writing to disk.

    53   */

    54 class AutoSaver : public QObject {

    55 

    56 Q_OBJECT

    57 

    58 public:

    59     AutoSaver(QObject *parent);

    60     ~AutoSaver();

    61     void saveIfNeccessary();

    62 

    63 public slots:

    64     void changeOccurred();

    65 

    66 protected:

    67     void timerEvent(QTimerEvent *event);

    68 

    69 private:

    70     QBasicTimer m_timer;

    71     QTime m_firstChange;

    72 

    73 };

    74 

    75 #endif // AUTOSAVER_H

    76