settingstree.h Example File

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#ifndef SETTINGSTREE_H
#define SETTINGSTREE_H
#include <QIcon>
#include <QTimer>
#include <QTreeWidget>
#include <QSharedPointer>
class QSettings;
class SettingsTree : public QTreeWidget
{
    Q_OBJECT
public:
    typedef QSharedPointer<QSettings> SettingsPtr;
    SettingsTree(QWidget *parent = 0);
    ~SettingsTree();
    void setSettingsObject(const SettingsPtr &settings);
    QSize sizeHint() const override;
public slots:
    void setAutoRefresh(bool autoRefresh);
    void setFallbacksEnabled(bool enabled);
    void maybeRefresh();
    void refresh();
protected:
    bool event(QEvent *event) override;
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);
    SettingsPtr settings;
    QTimer refreshTimer;
    bool autoRefresh;
    QIcon groupIcon;
    QIcon keyIcon;
};
#endif