doc/src/snippets/code/doc_src_qt4-accessibility.qdoc
author eckhart.koppen@nokia.com
Wed, 31 Mar 2010 11:06:36 +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 documentation of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file.  Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights.  These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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//! [environment]
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export QT_ACCESSIBILITY=1
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//! [environment]
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//! [0]
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class MyWidgetInterface : public QAccessibleWidget
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{
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public:
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    MyWidgetInterface(QWidget *widget, Role role);
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    QString text(Text text, int child) const;
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    State state(int child) const;
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    QString actionText(int action, Text text, int child) const;
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    bool doAction(int action, int child, const QVariantList &params);
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    ...
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};
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//! [0]
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//! [1]
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bool MyWidgetInterface::doAction(int action, int child,
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                                 const QVariantList &params)
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{
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    if (child || !widget()->isEnabled())
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        return false;
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    switch (action) {
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    case DefaultAction:
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    case Press:
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        {
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            MyWidget *widget = qobject_cast<MyWidget *>(object());
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            if (widget)
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                widget->click();
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        }
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        return true;
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    }
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    return QAccessibleWidget::doAction(action, child, params);
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}
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//! [1]
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//! [2]
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QStringList MyFactory::keys() const
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{
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    return QStringList() << "MyWidget" << "MyOtherWidget";
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}
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QAccessibleInterface *MyFactory::create(const QString &className,
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                                        QObject *object)
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{
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    if (classname == "MyWidget")
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        return new MyWidgetInterface(object);
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    if (classname == "MyOtherWidget")
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        return new MyOtherWidgetInterface(object);
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    return 0;
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}
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Q_EXPORT_PLUGIN2(myfactory, MyFactory)
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//! [2]