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Diffstat (limited to 'tests/auto/qfontmetrics/tst_qfontmetrics.cpp')
| -rw-r--r-- | tests/auto/qfontmetrics/tst_qfontmetrics.cpp | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/tests/auto/qfontmetrics/tst_qfontmetrics.cpp b/tests/auto/qfontmetrics/tst_qfontmetrics.cpp new file mode 100644 index 0000000..20de456 --- /dev/null +++ b/tests/auto/qfontmetrics/tst_qfontmetrics.cpp @@ -0,0 +1,205 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + + +#include <QtTest/QtTest> +#include <qfont.h> +#include <qfontmetrics.h> +#include <qfontdatabase.h> +#include <qstringlist.h> +#include <qlist.h> + + + +//TESTED_CLASS= +//TESTED_FILES= + +class tst_QFontMetrics : public QObject +{ +Q_OBJECT + +public: + tst_QFontMetrics(); + virtual ~tst_QFontMetrics(); + +public slots: + void init(); + void cleanup(); +private slots: + void same(); + void metrics(); + void boundingRect(); + void elidedText_data(); + void elidedText(); + void veryNarrowElidedText(); + void averageCharWidth(); +}; + +tst_QFontMetrics::tst_QFontMetrics() + +{ +} + +tst_QFontMetrics::~tst_QFontMetrics() +{ + +} + +void tst_QFontMetrics::init() +{ +} + +void tst_QFontMetrics::cleanup() +{ +} + +void tst_QFontMetrics::same() +{ + QFont font; + font.setBold(true); + QFontMetrics fm(font); + const QString text = QLatin1String("Some stupid STRING"); + QCOMPARE(fm.size(0, text), fm.size(0, text)) ; +} + + +void tst_QFontMetrics::metrics() +{ + QFont font; + QFontDatabase fdb; + + // Query the QFontDatabase for a specific font, store the + // result in family, style and size. + QStringList families = fdb.families(); + if (families.isEmpty()) + return; + + QStringList::ConstIterator f_it, f_end = families.end(); + for (f_it = families.begin(); f_it != f_end; ++f_it) { + const QString &family = *f_it; + + QStringList styles = fdb.styles(family); + QStringList::ConstIterator s_it, s_end = styles.end(); + for (s_it = styles.begin(); s_it != s_end; ++s_it) { + const QString &style = *s_it; + + if (fdb.isSmoothlyScalable(family, style)) { + // smoothly scalable font... don't need to load every pointsize + font = fdb.font(family, style, 12); + + QFontMetrics fontmetrics(font); + QCOMPARE(fontmetrics.ascent() + fontmetrics.descent() + 1, + fontmetrics.height()); + + QCOMPARE(fontmetrics.height() + fontmetrics.leading(), + fontmetrics.lineSpacing()); + } else { + QList<int> sizes = fdb.pointSizes(family, style); + QVERIFY(!sizes.isEmpty()); + QList<int>::ConstIterator z_it, z_end = sizes.end(); + for (z_it = sizes.begin(); z_it != z_end; ++z_it) { + const int size = *z_it; + + // Initialize the font, and check if it is an exact match + font = fdb.font(family, style, size); + + QFontMetrics fontmetrics(font); + QCOMPARE(fontmetrics.ascent() + fontmetrics.descent() + 1, + fontmetrics.height()); + QCOMPARE(fontmetrics.height() + fontmetrics.leading(), + fontmetrics.lineSpacing()); + } + } + } + } +} + +void tst_QFontMetrics::boundingRect() +{ + QFont f; + f.setPointSize(24); + QFontMetrics fm(f); + QRect r = fm.boundingRect(QChar('Y')); + QVERIFY(r.top() < 0); + r = fm.boundingRect(QString("Y")); + QVERIFY(r.top() < 0); +} + +void tst_QFontMetrics::elidedText_data() +{ + QTest::addColumn<QFont>("font"); + QTest::addColumn<QString>("text"); + + QTest::newRow("helvetica hello") << QFont("helvetica",10) << QString("hello"); +} + + +void tst_QFontMetrics::elidedText() +{ + QFETCH(QFont, font); + QFETCH(QString, text); + QFontMetrics fm(font); + int w = fm.width(text); + QString newtext = fm.elidedText(text,Qt::ElideRight,w); + QCOMPARE(text,newtext); // should not elide + newtext = fm.elidedText(text,Qt::ElideRight,w-1); + QVERIFY(text != newtext); // should elide +} + +void tst_QFontMetrics::veryNarrowElidedText() +{ + QFont f; + QFontMetrics fm(f); + QString text("hello"); + QCOMPARE(fm.elidedText(text, Qt::ElideRight, 0), QString()); +} + +void tst_QFontMetrics::averageCharWidth() +{ + QFont f; + QFontMetrics fm(f); + QVERIFY(fm.averageCharWidth() != 0); + QFontMetricsF fmf(f); + QVERIFY(fmf.averageCharWidth() != 0); +} + +QTEST_MAIN(tst_QFontMetrics) +#include "tst_qfontmetrics.moc" |