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#include <QObject>

#include <QFont>

#include <QFontMetrics>

#include <qtest.h>

//this test benchmarks the once-off (per font configuration) cost

//associated with using QFontMetrics

class tst_QFontMetrics : public QObject

{

    Q_OBJECT

public:

    tst_QFontMetrics() {}

private slots:

    void fontmetrics_create();

    void fontmetrics_create_once_loaded();

    void fontmetrics_height();

    void fontmetrics_height_once_loaded();

private:

    void testQFontMetrics(const QFontMetrics &fm);

};

void tst_QFontMetrics::testQFontMetrics( const QFontMetrics &fm )

{

    int fontHeight = fm.height();

}

void tst_QFontMetrics::fontmetrics_create()

{

    QBENCHMARK {

      QFont boldfont = QApplication::font();

      boldfont.setBold( true );

      boldfont.setPointSize(boldfont.pointSize() * 1.5 );

      QFontMetrics bfm( boldfont );

    }

}

void tst_QFontMetrics::fontmetrics_create_once_loaded()

{

    QBENCHMARK {

      QFont boldfont = QApplication::font();

      boldfont.setBold( true );

      boldfont.setPointSize(boldfont.pointSize() * 1.5 );

      QFontMetrics bfm( boldfont );

    }

}

void tst_QFontMetrics::fontmetrics_height()

{

    QFont boldfont = QApplication::font();

    boldfont.setBold( true );

    boldfont.setPointSize(boldfont.pointSize() * 1.5 );

    QFontMetrics bfm( boldfont );

    QBENCHMARK { testQFontMetrics(bfm); }

}

void tst_QFontMetrics::fontmetrics_height_once_loaded()

{

    QFont boldfont = QApplication::font();

    boldfont.setBold( true );

    boldfont.setPointSize(boldfont.pointSize() * 1.5 );

    QFontMetrics bfm( boldfont );

    QBENCHMARK { testQFontMetrics(bfm); }

}

QTEST_MAIN(tst_QFontMetrics)

#include "main.moc"