/****************************************************************************+
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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 test suite 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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+
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+
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#include "guitest.h"+
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#include <QDebug>+
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#include <QWidget>+
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#include <QStack>+
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#include <QTimer>+
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#include <QtTest/QtTest>+
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+
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#ifdef Q_OS_MAC+
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#   include <private/qt_mac_p.h>+
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#endif+
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+
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+
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/*+
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    Not really a test, just prints interface info.+
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*/+
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class PrintTest : public TestBase+
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{+
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public:+
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    bool operator()(InterfaceChildPair candidate) +
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    {+
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        qDebug() << "";+
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        qDebug() << "Name" << candidate.iface->text(QAccessible::Name, candidate.possibleChild);+
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        qDebug() << "Pos" <<  candidate.iface->rect(candidate.possibleChild);+
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        if (candidate.possibleChild == 0)+
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            qDebug() << "Number of children" << candidate.iface->childCount();+
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        return false;+
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    }+
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};+
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+
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class NameTest : public TestBase+
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{+
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public:+
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    NameTest(const QString &text, QAccessible::Text textType) : text(text), textType(textType) {}+
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    QString text;+
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    QAccessible::Text textType;+
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+
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    bool operator()(InterfaceChildPair candidate) +
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    {+
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        return (candidate.iface->text(textType, candidate.possibleChild) == text);+
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    }+
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};+
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+
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void WidgetNavigator::printAll(QWidget *widget)+
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{+
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    QAccessibleInterface * const iface = QAccessible::queryAccessibleInterface(widget);+
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    deleteInDestructor(iface);+
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    printAll(InterfaceChildPair(iface, 0));+
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}+
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+
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void WidgetNavigator::printAll(InterfaceChildPair interface) +
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{+
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    PrintTest printTest;+
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    recursiveSearch(&printTest, interface.iface, interface.possibleChild);+
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}+
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+
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InterfaceChildPair WidgetNavigator::find(QAccessible::Text textType, const QString &text, QWidget *start)+
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{+
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    QAccessibleInterface * const iface = QAccessible::queryAccessibleInterface(start);+
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    deleteInDestructor(iface);+
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    return find(textType, text, iface);+
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}+
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+
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InterfaceChildPair WidgetNavigator::find(QAccessible::Text textType, const QString &text, QAccessibleInterface *start)+
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{+
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    NameTest nameTest(text, textType);+
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    return recursiveSearch(&nameTest, start, 0);+
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}+
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+
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/*+
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    Recursiveley navigates the accessible hiearchy looking for an interfafce that+
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    passsed the Test (meaning it returns true).+
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*/+
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InterfaceChildPair WidgetNavigator::recursiveSearch(TestBase *test, QAccessibleInterface *iface, int possibleChild)+
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{+
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    QStack<InterfaceChildPair> todoInterfaces;+
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    todoInterfaces.push(InterfaceChildPair(iface, possibleChild));+
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+
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    while (todoInterfaces.isEmpty() == false) {+
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        InterfaceChildPair testInterface = todoInterfaces.pop();+
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        +
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        if ((*test)(testInterface))+
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            return testInterface;+
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            +
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        if (testInterface.possibleChild != 0)+
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            continue;+
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+
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        const int numChildren = testInterface.iface->childCount();+
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        for (int i = 0; i < numChildren; ++i) {+
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            QAccessibleInterface *childInterface = 0;+
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            int newPossibleChild = testInterface.iface->navigate(QAccessible::Child, i + 1, &childInterface);+
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            if (childInterface) {+
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                todoInterfaces.push(InterfaceChildPair(childInterface, newPossibleChild));+
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                deleteInDestructor(childInterface);+
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            } else if (newPossibleChild != -1) {+
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                todoInterfaces.push(InterfaceChildPair(testInterface.iface, newPossibleChild));+
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            }+
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        }+
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    }+
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    return InterfaceChildPair();+
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}+
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+
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void WidgetNavigator::deleteInDestructor(QAccessibleInterface * interface)+
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{+
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    interfaces.insert(interface);+
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}+
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+
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QWidget *WidgetNavigator::getWidget(InterfaceChildPair interface)+
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{+
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    return qobject_cast<QWidget *>(interface.iface->object());+
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}+
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+
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WidgetNavigator::~WidgetNavigator()+
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{+
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    foreach(QAccessibleInterface *interface, interfaces) {+
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        delete interface;+
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    }+
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}+
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+
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///////////////////////////////////////////////////////////////////////////////+
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+
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namespace NativeEvents {+
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#ifdef Q_OS_MAC+
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   void mouseClick(const QPoint &globalPos, Qt::MouseButtons buttons, MousePosition updateMouse)+
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    {+
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        CGPoint position;+
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        position.x = globalPos.x();+
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        position.y = globalPos.y();+
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       +
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        const bool updateMousePosition = (updateMouse == UpdatePosition);+
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        +
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        // Mouse down.+
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        CGPostMouseEvent(position, updateMousePosition, 3, +
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                        (buttons & Qt::LeftButton) ? true : false, +
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                        (buttons & Qt::MidButton/* Middlebutton! */) ? true : false, +
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                        (buttons & Qt::RightButton) ? true : false);+
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+
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        // Mouse up.+
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        CGPostMouseEvent(position, updateMousePosition, 3, false, false, false);	+
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    }+
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#else+
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# error Oops, NativeEvents::mouseClick() is not implemented on this platform.+
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#endif+
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};+
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+
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///////////////////////////////////////////////////////////////////////////////+
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+
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GuiTester::GuiTester()+
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{+
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    clearSequence();+
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}+
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+
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GuiTester::~GuiTester()+
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{+
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    foreach(DelayedAction *action, actions)+
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        delete action;+
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}+
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+
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bool checkPixel(QColor pixel, QColor expected)+
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{+
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    const int allowedDiff = 20;+
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+
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    return !(qAbs(pixel.red() - expected.red()) > allowedDiff ||+
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            qAbs(pixel.green() - expected.green()) > allowedDiff ||+
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            qAbs(pixel.blue() - expected.blue()) > allowedDiff);+
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}+
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+
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/*+
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    Tests that the pixels inside rect in image all have the given color. +
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*/+
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bool GuiTester::isFilled(const QImage image, const QRect &rect, const QColor &color)+
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{+
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    for (int y = rect.top(); y <= rect.bottom(); ++y)+
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        for (int x = rect.left(); x <= rect.right(); ++x) {+
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            const QColor pixel = image.pixel(x, y);+
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            if (checkPixel(pixel, color) == false) {+
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//                qDebug()<< "Wrong pixel value at" << x << y << pixel.red() << pixel.green() << pixel.blue();+
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                return false;+
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            }+
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        }+
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    return true;+
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}+
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+
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+
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/*+
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    Tests that stuff is painted to the pixels inside rect.+
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    This test fails if any lines in the given direction have pixels +
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    of only one color.+
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*/+
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bool GuiTester::isContent(const QImage image, const QRect &rect, Directions directions)+
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{+
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    if (directions & Horizontal) {+
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        for (int y = rect.top(); y <= rect.bottom(); ++y) {+
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            QColor currentColor = image.pixel(rect.left(), y);+
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            bool fullRun = true;+
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            for (int x = rect.left() + 1; x <= rect.right(); ++x) {+
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                if (checkPixel(image.pixel(x, y), currentColor) == false) {+
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                    fullRun = false;+
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                    break;+
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                }+
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            }+
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            if (fullRun) {+
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//                qDebug() << "Single-color line at horizontal line " << y  << currentColor;+
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                return false;+
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            }+
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        }+
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        return true;+
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    } +
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+
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    if (directions & Vertical) {+
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       for (int x = rect.left(); x <= rect.right(); ++x) {+
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            QRgb currentColor = image.pixel(x, rect.top());+
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            bool fullRun = true;+
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            for (int y = rect.top() + 1; y <= rect.bottom(); ++y) {+
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                if (checkPixel(image.pixel(x, y), currentColor) == false) {+
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                    fullRun = false;+
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                    break;+
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                }+
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            }+
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            if (fullRun) {+
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//                qDebug() << "Single-color line at vertical line" << x << currentColor;+
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                return false;+
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            }+
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        }+
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        return true;+
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    }+
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    return false; // shut the compiler up.+
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}+
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+
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void DelayedAction::run()+
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{+
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    if (next)+
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        QTimer::singleShot(next->delay, next, SLOT(run()));+
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};+
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+
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/*+
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    Schedules a mouse click at an interface using a singleShot timer.+
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    Only one click can be scheduled at a time.+
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*/+
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ClickLaterAction::ClickLaterAction(InterfaceChildPair interface, Qt::MouseButtons buttons)+
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{+
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    this->useInterface = true;+
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    this->interface = interface;+
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    this->buttons = buttons;+
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}+
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+
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/*+
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    Schedules a mouse click at a widget using a singleShot timer.+
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    Only one click can be scheduled at a time.+
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*/+
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ClickLaterAction::ClickLaterAction(QWidget *widget, Qt::MouseButtons buttons)+
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{+
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    this->useInterface = false;+
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    this->widget  = widget;+
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    this->buttons = buttons;+
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}+
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+
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void ClickLaterAction::run()+
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{+
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    if (useInterface) {+
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        const QPoint globalCenter = interface.iface->rect(interface.possibleChild).center();+
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        NativeEvents::mouseClick(globalCenter, buttons);+
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    } else { // use widget+
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        const QSize halfSize = widget->size() / 2;+
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        const QPoint globalCenter = widget->mapToGlobal(QPoint(halfSize.width(), halfSize.height()));+
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        NativeEvents::mouseClick(globalCenter, buttons);+
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    }+
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    DelayedAction::run();+
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}+
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+
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void GuiTester::clickLater(InterfaceChildPair interface, Qt::MouseButtons buttons, int delay)+
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{+
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    clearSequence();+
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    addToSequence(new ClickLaterAction(interface, buttons), delay);+
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    runSequence();+
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}+
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+
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void GuiTester::clickLater(QWidget *widget, Qt::MouseButtons buttons, int delay)+
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{+
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    clearSequence();+
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    addToSequence(new ClickLaterAction(widget, buttons), delay);+
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    runSequence();+
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}+
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+
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void GuiTester::clearSequence()+
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{+
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    startAction = new DelayedAction();+
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    actions.insert(startAction);+
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    lastAction = startAction;+
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}+
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+
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void GuiTester::addToSequence(DelayedAction *action, int delay)+
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{+
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    actions.insert(action);+
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    action->delay = delay;+
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    lastAction->next = action;+
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    lastAction = action;+
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}+
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+
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void GuiTester::runSequence()+
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{+
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    QTimer::singleShot(0, startAction, SLOT(run()));+
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}+
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+
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void GuiTester::exitLoopSlot()+
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{+
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    QTestEventLoop::instance().exitLoop();+
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}+
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+
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