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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 310 insertions, 0 deletions

diff --git a/tests/auto/qfontmetrics/tst_qfontmetrics.cpp b/tests/auto/qfontmetrics/tst_qfontmetrics.cpp
new file mode 100644
index 0000000000..ad0fb56398
--- /dev/null
+++ b/tests/auto/qfontmetrics/tst_qfontmetrics.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#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();
+    void bypassShaping();
+    void elidedMultiLength();
+    void elidedMultiLengthF();
+    void inFontUcs4();
+    void lineWidth();
+};
+
+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)) ;
+
+    {
+        QImage image;
+        QFontMetrics fm2(font, &image);
+        QString text2 =  QLatin1String("Foo Foo");
+        QCOMPARE(fm2.size(0, text2), fm2.size(0, text2));  //used to crash
+    }
+
+    {
+        QImage image;
+        QFontMetricsF fm3(font, &image);
+        QString text2 =  QLatin1String("Foo Foo");
+        QCOMPARE(fm3.size(0, text2), fm3.size(0, text2));  //used to crash
+    }
+}
+
+
+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") ;
+    QTest::newRow("helvetica hello &Bye") << QFont("helvetica",10) << QString("hello&Bye") ;
+}
+
+
+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+1, 0);
+    QCOMPARE(text,newtext); // should not elide
+    newtext = fm.elidedText(text,Qt::ElideRight,w-1, 0);
+    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);
+}
+
+void tst_QFontMetrics::bypassShaping()
+{
+    QFont f;
+    f.setStyleStrategy(QFont::ForceIntegerMetrics);
+    QFontMetrics fm(f);
+    QString text = " A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y, z";
+    int textWidth = fm.width(text, -1, Qt::TextBypassShaping);
+    QVERIFY(textWidth != 0);
+    int charsWidth = 0;
+    for (int i = 0; i < text.size(); ++i)
+        charsWidth += fm.width(text[i]);
+    // This assertion is needed in QtWebKit's WebCore::Font::offsetForPositionForSimpleText
+    QCOMPARE(textWidth, charsWidth);
+}
+
+template<class FontMetrics> void elidedMultiLength_helper()
+{
+    QString text1 = "Long Text 1\x9cShorter\x9csmall";
+    QString text1_long = "Long Text 1";
+    QString text1_short = "Shorter";
+    QString text1_small = "small";
+    FontMetrics fm = FontMetrics(QFont());
+    int width_long = fm.size(0, text1_long).width();
+    QCOMPARE(fm.elidedText(text1,Qt::ElideRight, 8000), text1_long);
+    QCOMPARE(fm.elidedText(text1,Qt::ElideRight, width_long + 1), text1_long);
+    QCOMPARE(fm.elidedText(text1,Qt::ElideRight, width_long - 1), text1_short);
+    int width_short = fm.size(0, text1_short).width();
+    QCOMPARE(fm.elidedText(text1,Qt::ElideRight, width_short + 1), text1_short);
+    QCOMPARE(fm.elidedText(text1,Qt::ElideRight, width_short - 1), text1_small);
+
+    // Not even wide enough for "small" - should use ellipsis
+    QChar ellipsisChar(0x2026);
+    QString text1_el = QString::fromLatin1("s") + ellipsisChar;
+    int width_small = fm.width(text1_el);
+    QCOMPARE(fm.elidedText(text1,Qt::ElideRight, width_small + 1), text1_el);
+}
+
+void tst_QFontMetrics::elidedMultiLength()
+{
+    elidedMultiLength_helper<QFontMetrics>();
+}
+
+void tst_QFontMetrics::elidedMultiLengthF()
+{
+    elidedMultiLength_helper<QFontMetricsF>();
+}
+
+void tst_QFontMetrics::inFontUcs4()
+{
+    int id = QFontDatabase::addApplicationFont(":/fonts/ucs4font.ttf");
+    QVERIFY(id >= 0);
+
+    QFont font("QtTestUcs4");
+    {
+        QFontMetrics fm(font);
+
+        QVERIFY(fm.inFontUcs4(0x1D7FF));
+    }
+
+    {
+        QFontMetricsF fm(font);
+
+        QVERIFY(fm.inFontUcs4(0x1D7FF));
+    }
+
+    QFontDatabase::removeApplicationFont(id);
+}
+
+void tst_QFontMetrics::lineWidth()
+{
+    // QTBUG-13009, QTBUG-13011
+    QFont smallFont;
+    smallFont.setPointSize(8);
+    smallFont.setWeight(QFont::Light);
+    const QFontMetrics smallFontMetrics(smallFont);
+
+    QFont bigFont;
+    bigFont.setPointSize(40);
+    bigFont.setWeight(QFont::Black);
+    const QFontMetrics bigFontMetrics(bigFont);
+
+    QVERIFY(smallFontMetrics.lineWidth() >= 1);
+    QVERIFY(smallFontMetrics.lineWidth() < bigFontMetrics.lineWidth());
+}
+
+QTEST_MAIN(tst_QFontMetrics)
+#include "tst_qfontmetrics.moc"