examples/tools/settingseditor/settingstree.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 06 Jul 2010 15:10:48 +0300
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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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**   * Redistributions of source code must retain the above copyright
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**     notice, this list of conditions and the following disclaimer.
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**   * Redistributions in binary form must reproduce the above copyright
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**     notice, this list of conditions and the following disclaimer in
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**     the documentation and/or other materials provided with the
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**     distribution.
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**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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**     the names of its contributors may be used to endorse or promote
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**     products derived from this software without specific prior written
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**     permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef SETTINGSTREE_H
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#define SETTINGSTREE_H
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#include <QIcon>
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#include <QTimer>
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#include <QTreeWidget>
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QT_BEGIN_NAMESPACE
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class QSettings;
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QT_END_NAMESPACE
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class SettingsTree : public QTreeWidget
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{
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    Q_OBJECT
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public:
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    SettingsTree(QWidget *parent = 0);
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    void setSettingsObject(QSettings *settings);
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    QSize sizeHint() const;
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public slots:
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    void setAutoRefresh(bool autoRefresh);
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    void setFallbacksEnabled(bool enabled);
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    void maybeRefresh();
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    void refresh();
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protected:
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    bool event(QEvent *event);
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private slots:
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    void updateSetting(QTreeWidgetItem *item);
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private:
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    void updateChildItems(QTreeWidgetItem *parent);
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    QTreeWidgetItem *createItem(const QString &text, QTreeWidgetItem *parent,
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                                int index);
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    QTreeWidgetItem *childAt(QTreeWidgetItem *parent, int index);
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    int childCount(QTreeWidgetItem *parent);
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    int findChild(QTreeWidgetItem *parent, const QString &text, int startIndex);
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    void moveItemForward(QTreeWidgetItem *parent, int oldIndex, int newIndex);
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    QSettings *settings;
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    QTimer refreshTimer;
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    bool autoRefresh;
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    QIcon groupIcon;
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    QIcon keyIcon;
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};
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#endif