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settingstree.h Example File
^{tools/settingseditor/settingstree.h}

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    **
    ** This file is part of the documentation of the Qt Toolkit.
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    ** and appearing in the file LICENSE.GPL included in the packaging of
    ** this file.  Please review the following information to ensure GNU
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    #ifndef SETTINGSTREE_H
    #define SETTINGSTREE_H

    #include <QIcon>
    #include <QTimer>
    #include <QTreeWidget>

    class QSettings;

    class SettingsTree : public QTreeWidget
    {
        Q_OBJECT

    public:
        SettingsTree(QWidget *parent = 0);

        void setSettingsObject(QSettings *settings);
        QSize sizeHint() const;

    public slots:
        void setAutoRefresh(bool autoRefresh);
        void setFallbacksEnabled(bool enabled);
        void maybeRefresh();
        void refresh();

    protected:
        bool event(QEvent *event);

    private slots:
        void updateSetting(QTreeWidgetItem *item);

    private:
        void updateChildItems(QTreeWidgetItem *parent);
        QTreeWidgetItem *createItem(const QString &text, QTreeWidgetItem *parent,
                                    int index);
        QTreeWidgetItem *childAt(QTreeWidgetItem *parent, int index);
        int childCount(QTreeWidgetItem *parent);
        int findChild(QTreeWidgetItem *parent, const QString &text, int startIndex);
        void moveItemForward(QTreeWidgetItem *parent, int oldIndex, int newIndex);

        QSettings *settings;
        QTimer refreshTimer;
        bool autoRefresh;
        QIcon groupIcon;
        QIcon keyIcon;
    };

    #endif