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#include <QDebug>
#include <QTextDocument>
#include <QTextDocumentWriter>
#include <QTextLayout>
#include <QTextCursor>
#include <QFile>
#include <QBuffer>
#include <qtest.h>

#ifdef Q_OS_SYMBIAN
#define SRCDIR ""
#endif

Q_DECLARE_METATYPE(QTextDocument*)

class tst_QText: public QObject
{
    Q_OBJECT
public:
    tst_QText() {
        m_lorem = QString::fromLatin1("Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi.");
    }

private slots:
    void loadHtml_data();
    void loadHtml();

    void shaping_data();
    void shaping();

    void odfWriting_empty();
    void odfWriting_text();
    void odfWriting_images();

private:
    QString m_lorem;
};

void tst_QText::loadHtml_data()
{
    QTest::addColumn<QString>("source");
    QTest::newRow("empty") << QString();
    QTest::newRow("simple") << QString::fromLatin1("<html><b>Foo</b></html>");
    QTest::newRow("simple2") << QString::fromLatin1("<b>Foo</b>");

    QString parag = QString::fromLatin1("<p>%1</p>").arg(m_lorem);
    QString header = QString::fromLatin1("<html><head><title>test</title></head><body>");
    QTest::newRow("long") << QString::fromLatin1("<html><head><title>test</title></head><body>") + parag + parag + parag
        + parag + parag + parag + parag + parag + parag + parag + parag + parag + parag + parag + parag + parag + parag
        + QString::fromLatin1("</html>");
    QTest::newRow("table") <<  header + QLatin1String("<table border=\"1\"1><tr><td>xx</td></tr><tr><td colspan=\"2\">")
        + parag + QLatin1String("</td></tr></table></html");
    QTest::newRow("crappy") <<  header + QLatin1String("<table border=\"1\"1><tr><td>xx</td></tr><tr><td colspan=\"2\">")
        + parag;
}

void tst_QText::loadHtml()
{
    QFETCH(QString, source);
    QTextDocument doc;
    QBENCHMARK {
        doc.setHtml(source);
    }
}

void tst_QText::shaping_data()
{
    QTest::addColumn<QString>("parag");
    QTest::newRow("empty") << QString();
    QTest::newRow("lorem") << m_lorem;
    QTest::newRow("short") << QString::fromLatin1("Lorem ipsum dolor sit amet");

    QFile file(QString::fromLatin1(SRCDIR) + QLatin1String("/bidi.txt"));
    QVERIFY(file.open(QFile::ReadOnly));
    QByteArray data = file.readAll();
    QVERIFY(data.count() > 1000);
    QStringList list = QString::fromUtf8(data.data()).split(QLatin1Char('\n'), QString::SkipEmptyParts);
    QVERIFY(list.count() %2 == 0); // even amount as we have title and then content.
    for (int i=0; i < list.count(); i+=2) {
        QTest::newRow(list.at(i).toLatin1()) << list.at(i+1);
    }
}

void tst_QText::shaping()
{
    QFETCH(QString, parag);

    QTextLayout lay(parag);
    lay.setCacheEnabled(false);

    // do one run to make sure any fonts are loaded.
    lay.beginLayout();
    lay.createLine();
    lay.endLayout();

    QBENCHMARK {
        lay.beginLayout();
        lay.createLine();
        lay.endLayout();
    }
}

void tst_QText::odfWriting_empty()
{
    QVERIFY(QTextDocumentWriter::supportedDocumentFormats().contains("ODF")); // odf compiled in
    QTextDocument *doc = new QTextDocument();
    // write it
    QBENCHMARK {
        QBuffer buffer;
        buffer.open(QIODevice::WriteOnly);
        QTextDocumentWriter writer(&buffer, "ODF");
        writer.write(doc);
    }
    delete doc;
}

void tst_QText::odfWriting_text()
{
    QTextDocument *doc = new QTextDocument();
    QTextCursor cursor(doc);
    QTextBlockFormat bf;
    bf.setIndent(2);
    cursor.insertBlock(bf);
    cursor.insertText(m_lorem);
    bf.setTopMargin(10);
    cursor.insertBlock(bf);
    cursor.insertText(m_lorem);
    bf.setRightMargin(30);
    cursor.insertBlock(bf);
    cursor.insertText(m_lorem);

    // write it
    QBENCHMARK {
        QBuffer buffer;
        buffer.open(QIODevice::WriteOnly);
        QTextDocumentWriter writer(&buffer, "ODF");
        writer.write(doc);
    }
    delete doc;
}

void tst_QText::odfWriting_images()
{
    QTextDocument *doc = new QTextDocument();
    QTextCursor cursor(doc);
    cursor.insertText(m_lorem);
    QImage image(400, 200, QImage::Format_ARGB32_Premultiplied);
    cursor.insertImage(image);
    cursor.insertText(m_lorem);

    // write it
    QBENCHMARK {
        QBuffer buffer;
        buffer.open(QIODevice::WriteOnly);
        QTextDocumentWriter writer(&buffer, "ODF");
        writer.write(doc);
    }
    delete doc;
}

QTEST_MAIN(tst_QText)

#include "main.moc"
