Qt 4.0: settingstree.h Example File (tools/settingseditor/settingstree.h)

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# settingstree.h Example File
tools/settingseditor/settingstree.h

        /****************************************************************************
        **
        ** Copyright (C) 2005-2005 Trolltech AS. All rights reserved.
        **
        ** This file is part of the documentation of the Qt Toolkit.
        **
        ** This file may be used under the terms of the GNU General Public
    ** License version 2.0 as published by the Free Software Foundation
    ** and appearing in the file LICENSE.GPL included in the packaging of
    ** this file.  Please review the following information to ensure GNU
    ** General Public Licensing requirements will be met:
    ** http://www.trolltech.com/products/qt/opensource.html
    **
    ** If you are unsure which license is appropriate for your use, please
    ** review the following information:
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        **
        ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
        ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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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