/****************************************************************************

**

** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the test suite of the Qt Toolkit.

**

** $QT_BEGIN_LICENSE:LGPL$

** No Commercial Usage

** This file contains pre-release code and may not be distributed.

** You may use this file in accordance with the terms and conditions

** contained in the Technology Preview License Agreement accompanying

** this package.

**

** GNU Lesser General Public License Usage

** Alternatively, this file may be used under the terms of the GNU Lesser

** General Public License version 2.1 as published by the Free Software

** Foundation and appearing in the file LICENSE.LGPL included in the

** packaging of this file.  Please review the following information to

** ensure the GNU Lesser General Public License version 2.1 requirements

** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at qt-info@nokia.com.

**

**

**

**

**

**

**

**

** $QT_END_LICENSE$

**

****************************************************************************/

// Horrible hack, but this get this out of the way for now

// Carlos Duclos, 2007-12-11

#if !defined(Q_WS_MAC)

#include <QtTest/QtTest>

#include <private/qtextengine_p.h>

#include "bidireorderstring.h"

//TESTED_CLASS=

//TESTED_FILES=gui/widgets/qcombobox.h gui/widgets/qcombobox.cpp

class tst_QComplexText : public QObject

{

Q_OBJECT

public:

    tst_QComplexText();

    virtual ~tst_QComplexText();

public slots:

    void init();

    void cleanup();

private slots:

    void bidiReorderString_data();

    void bidiReorderString();

};

tst_QComplexText::tst_QComplexText()

{

}

tst_QComplexText::~tst_QComplexText()

{

}

void tst_QComplexText::init()

{

// This will be executed immediately before each test is run.

// TODO: Add initialization code here.

}

void tst_QComplexText::cleanup()

{

// This will be executed immediately after each test is run.

// TODO: Add cleanup code here.

}

void tst_QComplexText::bidiReorderString_data()

{

    QTest::addColumn<QString>("logical");

    QTest::addColumn<QString>("VISUAL");

    QTest::addColumn<int>("basicDir");

    const LV *data = logical_visual;

    while ( data->name ) {

	//next we fill it with data

	QTest::newRow( data->name )

	    << QString::fromUtf8( data->logical )

	    << QString::fromUtf8( data->visual )

	    << (int) data->basicDir;

	data++;

    }

}

void tst_QComplexText::bidiReorderString()

{

    QFETCH( QString, logical );

    QFETCH( int,  basicDir );

    // replace \n with Unicode newline. The new algorithm ignores \n

    logical.replace(QChar('\n'), QChar(0x2028));

    QTextEngine e(logical, QFont());

    e.option.setTextDirection((QChar::Direction)basicDir == QChar::DirL ? Qt::LeftToRight : Qt::RightToLeft);

    e.itemize();

    quint8 levels[256];

    int visualOrder[256];

    int nitems = e.layoutData->items.size();

    int i;

    for (i = 0; i < nitems; ++i) {

	//qDebug("item %d bidiLevel=%d", i,  e.items[i].analysis.bidiLevel);

	levels[i] = e.layoutData->items[i].analysis.bidiLevel;

    }

    e.bidiReorder(nitems, levels, visualOrder);

    QString visual;

    for (i = 0; i < nitems; ++i) {

	QScriptItem &si = e.layoutData->items[visualOrder[i]];

	QString sub = logical.mid(si.position, e.length(visualOrder[i]));

	if (si.analysis.bidiLevel % 2) {

	    // reverse sub

	    QChar *a = (QChar *)sub.unicode();

	    QChar *b = a + sub.length() - 1;

	    while (a < b) {

		QChar tmp = *a;

		*a = *b;

		*b = tmp;

		++a;

		--b;

	    }

	    a = (QChar *)sub.unicode();

	    b = a + sub.length();

	    while (a<b) {

		*a = a->mirroredChar();

		++a;

	    }

	}

	visual += sub;

    }

    // replace Unicode newline back with  \n to compare.

    visual.replace(QChar(0x2028), QChar('\n'));

    QTEST(visual, "VISUAL");

}

QTEST_MAIN(tst_QComplexText)

#include "tst_qcomplextext.moc"

#endif // Q_WS_MAC