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    41 

    42 #include <QObject>

    43 #include <QFont>

    44 #include <QFontMetrics>

    45 

    46 #include <qtest.h>

    47 

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

    49 //associated with using QFontMetrics

    50 class tst_QFontMetrics : public QObject

    51 {

    52     Q_OBJECT

    53 public:

    54     tst_QFontMetrics() {}

    55 private slots:

    56     void fontmetrics_create();

    57     void fontmetrics_create_once_loaded();

    58 

    59     void fontmetrics_height();

    60     void fontmetrics_height_once_loaded();

    61 

    62 private:

    63     void testQFontMetrics(const QFontMetrics &fm);

    64 };

    65 

    66 void tst_QFontMetrics::testQFontMetrics( const QFontMetrics &fm )

    67 {

    68     int fontHeight = fm.height();

    69 }

    70 

    71 void tst_QFontMetrics::fontmetrics_create()

    72 {

    73     QBENCHMARK {

    74       QFont boldfont = QApplication::font();

    75       boldfont.setBold( true );

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

    77       QFontMetrics bfm( boldfont );

    78     }

    79 }

    80 

    81 void tst_QFontMetrics::fontmetrics_create_once_loaded()

    82 {

    83     QBENCHMARK {

    84       QFont boldfont = QApplication::font();

    85       boldfont.setBold( true );

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

    87       QFontMetrics bfm( boldfont );

    88     }

    89 }

    90 

    91 void tst_QFontMetrics::fontmetrics_height()

    92 {

    93     QFont boldfont = QApplication::font();

    94     boldfont.setBold( true );

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

    96     QFontMetrics bfm( boldfont );

    97 

    98     QBENCHMARK { testQFontMetrics(bfm); }

    99 }

   100 

   101 void tst_QFontMetrics::fontmetrics_height_once_loaded()

   102 {

   103     QFont boldfont = QApplication::font();

   104     boldfont.setBold( true );

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

   106     QFontMetrics bfm( boldfont );

   107     QBENCHMARK { testQFontMetrics(bfm); }

   108 }

   109 

   110 QTEST_MAIN(tst_QFontMetrics)

   111 

   112 #include "main.moc"