e3640d1bdd
These comments were mostly empty or inaccurate. Appropriate naming of tests and appropriate placement of tests within the directory tree provide more reliable indicators of what is being tested. Change-Id: Ib6bf373d9e79917e4ab1417ee5c1264a2c2d7027 Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
304 lines
8.9 KiB
C++
304 lines
8.9 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the test suite of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** GNU Lesser General Public License Usage
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** This file may be used under the terms of the GNU Lesser General Public
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** License version 2.1 as published by the Free Software Foundation and
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** appearing in the file LICENSE.LGPL included in the packaging of this
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** file. Please review the following information to ensure the GNU Lesser
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** General Public License version 2.1 requirements will be met:
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License version 3.0 as published by the Free Software Foundation
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** and appearing in the file LICENSE.GPL included in the packaging of this
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** file. Please review the following information to ensure the GNU General
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** Public License version 3.0 requirements will be met:
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** Other Usage
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** Alternatively, this file may be used in accordance with the terms and
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** conditions contained in a signed written agreement between you and Nokia.
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtTest/QtTest>
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#include <qfont.h>
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#include <qfontmetrics.h>
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#include <qfontdatabase.h>
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#include <qstringlist.h>
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#include <qlist.h>
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class tst_QFontMetrics : public QObject
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{
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Q_OBJECT
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public:
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tst_QFontMetrics();
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virtual ~tst_QFontMetrics();
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public slots:
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void init();
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void cleanup();
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private slots:
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void same();
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void metrics();
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void boundingRect();
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void elidedText_data();
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void elidedText();
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void veryNarrowElidedText();
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void averageCharWidth();
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void bypassShaping();
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void elidedMultiLength();
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void elidedMultiLengthF();
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void inFontUcs4();
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void lineWidth();
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};
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tst_QFontMetrics::tst_QFontMetrics()
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{
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}
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tst_QFontMetrics::~tst_QFontMetrics()
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{
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}
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void tst_QFontMetrics::init()
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{
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}
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void tst_QFontMetrics::cleanup()
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{
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}
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void tst_QFontMetrics::same()
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{
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QFont font;
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font.setBold(true);
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QFontMetrics fm(font);
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const QString text = QLatin1String("Some stupid STRING");
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QCOMPARE(fm.size(0, text), fm.size(0, text)) ;
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{
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QImage image;
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QFontMetrics fm2(font, &image);
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QString text2 = QLatin1String("Foo Foo");
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QCOMPARE(fm2.size(0, text2), fm2.size(0, text2)); //used to crash
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}
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{
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QImage image;
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QFontMetricsF fm3(font, &image);
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QString text2 = QLatin1String("Foo Foo");
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QCOMPARE(fm3.size(0, text2), fm3.size(0, text2)); //used to crash
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}
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}
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void tst_QFontMetrics::metrics()
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{
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QFont font;
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QFontDatabase fdb;
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// Query the QFontDatabase for a specific font, store the
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// result in family, style and size.
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QStringList families = fdb.families();
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if (families.isEmpty())
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return;
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QStringList::ConstIterator f_it, f_end = families.end();
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for (f_it = families.begin(); f_it != f_end; ++f_it) {
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const QString &family = *f_it;
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QStringList styles = fdb.styles(family);
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QStringList::ConstIterator s_it, s_end = styles.end();
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for (s_it = styles.begin(); s_it != s_end; ++s_it) {
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const QString &style = *s_it;
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if (fdb.isSmoothlyScalable(family, style)) {
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// smoothly scalable font... don't need to load every pointsize
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font = fdb.font(family, style, 12);
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QFontMetrics fontmetrics(font);
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QCOMPARE(fontmetrics.ascent() + fontmetrics.descent() + 1,
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fontmetrics.height());
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QCOMPARE(fontmetrics.height() + fontmetrics.leading(),
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fontmetrics.lineSpacing());
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} else {
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QList<int> sizes = fdb.pointSizes(family, style);
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QVERIFY(!sizes.isEmpty());
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QList<int>::ConstIterator z_it, z_end = sizes.end();
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for (z_it = sizes.begin(); z_it != z_end; ++z_it) {
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const int size = *z_it;
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// Initialize the font, and check if it is an exact match
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font = fdb.font(family, style, size);
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QFontMetrics fontmetrics(font);
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QCOMPARE(fontmetrics.ascent() + fontmetrics.descent() + 1,
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fontmetrics.height());
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QCOMPARE(fontmetrics.height() + fontmetrics.leading(),
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fontmetrics.lineSpacing());
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}
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}
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}
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}
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}
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void tst_QFontMetrics::boundingRect()
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{
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QFont f;
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f.setPointSize(24);
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QFontMetrics fm(f);
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QRect r = fm.boundingRect(QChar('Y'));
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QVERIFY(r.top() < 0);
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r = fm.boundingRect(QString("Y"));
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QVERIFY(r.top() < 0);
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}
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void tst_QFontMetrics::elidedText_data()
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{
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QTest::addColumn<QFont>("font");
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QTest::addColumn<QString>("text");
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QTest::newRow("helvetica hello") << QFont("helvetica",10) << QString("hello") ;
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QTest::newRow("helvetica hello &Bye") << QFont("helvetica",10) << QString("hello&Bye") ;
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}
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void tst_QFontMetrics::elidedText()
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{
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QFETCH(QFont, font);
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QFETCH(QString, text);
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QFontMetrics fm(font);
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int w = fm.width(text);
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QString newtext = fm.elidedText(text,Qt::ElideRight,w+1, 0);
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QCOMPARE(text,newtext); // should not elide
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newtext = fm.elidedText(text,Qt::ElideRight,w-1, 0);
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QVERIFY(text != newtext); // should elide
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}
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void tst_QFontMetrics::veryNarrowElidedText()
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{
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QFont f;
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QFontMetrics fm(f);
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QString text("hello");
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QCOMPARE(fm.elidedText(text, Qt::ElideRight, 0), QString());
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}
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void tst_QFontMetrics::averageCharWidth()
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{
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QFont f;
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QFontMetrics fm(f);
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QVERIFY(fm.averageCharWidth() != 0);
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QFontMetricsF fmf(f);
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QVERIFY(fmf.averageCharWidth() != 0);
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}
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void tst_QFontMetrics::bypassShaping()
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{
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QFont f;
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f.setStyleStrategy(QFont::ForceIntegerMetrics);
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QFontMetrics fm(f);
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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";
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int textWidth = fm.width(text, -1, Qt::TextBypassShaping);
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QVERIFY(textWidth != 0);
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int charsWidth = 0;
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for (int i = 0; i < text.size(); ++i)
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charsWidth += fm.width(text[i]);
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// This assertion is needed in QtWebKit's WebCore::Font::offsetForPositionForSimpleText
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QCOMPARE(textWidth, charsWidth);
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}
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template<class FontMetrics> void elidedMultiLength_helper()
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{
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QString text1 = "Long Text 1\x9cShorter\x9csmall";
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QString text1_long = "Long Text 1";
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QString text1_short = "Shorter";
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QString text1_small = "small";
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FontMetrics fm = FontMetrics(QFont());
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int width_long = fm.size(0, text1_long).width();
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QCOMPARE(fm.elidedText(text1,Qt::ElideRight, 8000), text1_long);
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QCOMPARE(fm.elidedText(text1,Qt::ElideRight, width_long + 1), text1_long);
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QCOMPARE(fm.elidedText(text1,Qt::ElideRight, width_long - 1), text1_short);
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int width_short = fm.size(0, text1_short).width();
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QCOMPARE(fm.elidedText(text1,Qt::ElideRight, width_short + 1), text1_short);
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QCOMPARE(fm.elidedText(text1,Qt::ElideRight, width_short - 1), text1_small);
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// Not even wide enough for "small" - should use ellipsis
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QChar ellipsisChar(0x2026);
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QString text1_el = QString::fromLatin1("s") + ellipsisChar;
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int width_small = fm.width(text1_el);
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QCOMPARE(fm.elidedText(text1,Qt::ElideRight, width_small + 1), text1_el);
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}
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void tst_QFontMetrics::elidedMultiLength()
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{
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elidedMultiLength_helper<QFontMetrics>();
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}
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void tst_QFontMetrics::elidedMultiLengthF()
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{
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elidedMultiLength_helper<QFontMetricsF>();
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}
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void tst_QFontMetrics::inFontUcs4()
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{
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int id = QFontDatabase::addApplicationFont(":/fonts/ucs4font.ttf");
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QVERIFY(id >= 0);
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QFont font("QtTestUcs4");
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{
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QFontMetrics fm(font);
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QVERIFY(fm.inFontUcs4(0x1D7FF));
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}
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{
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QFontMetricsF fm(font);
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QVERIFY(fm.inFontUcs4(0x1D7FF));
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}
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QFontDatabase::removeApplicationFont(id);
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}
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void tst_QFontMetrics::lineWidth()
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{
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// QTBUG-13009, QTBUG-13011
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QFont smallFont;
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smallFont.setPointSize(8);
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smallFont.setWeight(QFont::Light);
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const QFontMetrics smallFontMetrics(smallFont);
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QFont bigFont;
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bigFont.setPointSize(40);
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bigFont.setWeight(QFont::Black);
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const QFontMetrics bigFontMetrics(bigFont);
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QVERIFY(smallFontMetrics.lineWidth() >= 1);
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QVERIFY(smallFontMetrics.lineWidth() < bigFontMetrics.lineWidth());
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}
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QTEST_MAIN(tst_QFontMetrics)
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#include "tst_qfontmetrics.moc"
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