source: trunk/doc/src/snippets/settings/settings.cpp@ 846

/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation ([email protected])
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
**   * Redistributions of source code must retain the above copyright
**     notice, this list of conditions and the following disclaimer.
**   * Redistributions in binary form must reproduce the above copyright
**     notice, this list of conditions and the following disclaimer in
**     the documentation and/or other materials provided with the
**     distribution.
**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
**     the names of its contributors may be used to endorse or promote
**     products derived from this software without specific prior written
**     permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
** $QT_END_LICENSE$
**
****************************************************************************/

#include <QtGui>

QWidget *win;
QWidget *panel;

void snippet_ctor1()
{
//! [0]
    QSettings settings("MySoft", "Star Runner");
//! [0]
}

void snippet_ctor2()
{
//! [1]
    QCoreApplication::setOrganizationName("MySoft");
//! [1] //! [2]
    QCoreApplication::setOrganizationDomain("mysoft.com");
//! [2] //! [3]
    QCoreApplication::setApplicationName("Star Runner");
//! [3]

//! [4]
    QSettings settings;
//! [4]

//! [5]
    settings.setValue("editor/wrapMargin", 68);
//! [5] //! [6]
    int margin = settings.value("editor/wrapMargin").toInt();
//! [6]
    {
//! [7]
    int margin = settings.value("editor/wrapMargin", 80).toInt();
//! [7]
    }

//! [8]
    settings.setValue("mainwindow/size", win->size());
//! [8] //! [9]
    settings.setValue("mainwindow/fullScreen", win->isFullScreen());
//! [9] //! [10]
    settings.setValue("outputpanel/visible", panel->isVisible());
//! [10]

//! [11]
    settings.beginGroup("mainwindow");
    settings.setValue("size", win->size());
    settings.setValue("fullScreen", win->isFullScreen());
    settings.endGroup();
//! [11]

//! [12]
    settings.beginGroup("outputpanel");
    settings.setValue("visible", panel->isVisible());
    settings.endGroup();
//! [12]
}

void snippet_locations()
{
//! [13]
    QSettings obj1("MySoft", "Star Runner");
//! [13] //! [14]
    QSettings obj2("MySoft");
    QSettings obj3(QSettings::SystemScope, "MySoft", "Star Runner");
    QSettings obj4(QSettings::SystemScope, "MySoft");
//! [14]

    {
//! [15]
    QSettings settings(QSettings::IniFormat, QSettings::UserScope,
                       "MySoft", "Star Runner");
//! [15]
    }

    {
    QSettings settings("starrunner.ini", QSettings::IniFormat);
    }

    {
    QSettings settings("HKEY_CURRENT_USER\\Software\\Microsoft",
                       QSettings::NativeFormat);
    }
}

class MainWindow : public QMainWindow
{
public:
    MainWindow();

    void writeSettings();
    void readSettings();

protected:
    void closeEvent(QCloseEvent *event);
};

//! [16]
void MainWindow::writeSettings()
{
    QSettings settings("Moose Soft", "Clipper");

    settings.beginGroup("MainWindow");
    settings.setValue("size", size());
    settings.setValue("pos", pos());
    settings.endGroup();
}
//! [16]

//! [17]
void MainWindow::readSettings()
{
    QSettings settings("Moose Soft", "Clipper");

    settings.beginGroup("MainWindow");
    resize(settings.value("size", QSize(400, 400)).toSize());
    move(settings.value("pos", QPoint(200, 200)).toPoint());
    settings.endGroup();
}
//! [17]

//! [18]
MainWindow::MainWindow()
{
//! [18] //! [19]
    readSettings();
//! [19] //! [20]
}
//! [20]

bool userReallyWantsToQuit() { return true; }

//! [21]
void MainWindow::closeEvent(QCloseEvent *event)
{
    if (userReallyWantsToQuit()) {
        writeSettings();
        event->accept();
    } else {
        event->ignore();
    }
}
//! [21]