17ced070fd
Certain fonts with multiple styles have the same family name. When loading these as application fonts we were not specific enough when querying for the text metrics. This meant that e.g. the bold version in a font family would get the metrics of the regular one. Fixes: QTBUG-67273 Change-Id: Ic988d62cddde0a1f77ddcaf2891cadc21c9b31e6 Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io> Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
432 lines
13 KiB
C++
432 lines
13 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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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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** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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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
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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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 <qfontdatabase.h>
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#include <qfontinfo.h>
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#include <qfontmetrics.h>
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#include <qtextlayout.h>
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#include <private/qrawfont_p.h>
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#include <qpa/qplatformfontdatabase.h>
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class tst_QFontDatabase : public QObject
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{
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Q_OBJECT
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public:
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tst_QFontDatabase();
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private slots:
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void initTestCase();
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void styles_data();
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void styles();
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void fixedPitch_data();
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void fixedPitch();
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#ifdef Q_OS_MAC
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void trickyFonts_data();
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void trickyFonts();
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#endif
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void widthTwoTimes_data();
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void widthTwoTimes();
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void addAppFont_data();
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void addAppFont();
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void addTwoAppFontsFromFamily();
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void aliases();
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void fallbackFonts();
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void condensedFontWidth();
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void condensedFontWidthNoFontMerging();
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void condensedFontMatching();
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void rasterFonts();
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void smoothFonts();
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private:
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QString m_ledFont;
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QString m_testFont;
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QString m_testFontCondensed;
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QString m_testFontItalic;
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};
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tst_QFontDatabase::tst_QFontDatabase()
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{
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}
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void tst_QFontDatabase::initTestCase()
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{
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m_ledFont = QFINDTESTDATA("LED_REAL.TTF");
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m_testFont = QFINDTESTDATA("testfont.ttf");
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m_testFontCondensed = QFINDTESTDATA("testfont_condensed.ttf");
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m_testFontItalic = QFINDTESTDATA("testfont_italic.ttf");
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QVERIFY(!m_ledFont.isEmpty());
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QVERIFY(!m_testFont.isEmpty());
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QVERIFY(!m_testFontCondensed.isEmpty());
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QVERIFY(!m_testFontItalic.isEmpty());
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}
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void tst_QFontDatabase::styles_data()
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{
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QTest::addColumn<QString>("font");
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QTest::newRow( "data0" ) << QString( "Times New Roman" );
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}
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void tst_QFontDatabase::styles()
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{
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QFETCH( QString, font );
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QFontDatabase fdb;
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QStringList styles = fdb.styles( font );
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QStringList::Iterator it = styles.begin();
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while ( it != styles.end() ) {
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QString style = *it;
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QString trimmed = style.trimmed();
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++it;
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QCOMPARE(style, trimmed);
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}
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}
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void tst_QFontDatabase::fixedPitch_data()
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{
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QTest::addColumn<QString>("font");
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QTest::addColumn<bool>("fixedPitch");
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QTest::newRow( "Times New Roman" ) << QString( "Times New Roman" ) << false;
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QTest::newRow( "Arial" ) << QString( "Arial" ) << false;
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QTest::newRow( "Andale Mono" ) << QString( "Andale Mono" ) << true;
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QTest::newRow( "Courier" ) << QString( "Courier" ) << true;
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QTest::newRow( "Courier New" ) << QString( "Courier New" ) << true;
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#ifndef Q_OS_MAC
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QTest::newRow( "Script" ) << QString( "Script" ) << false;
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QTest::newRow( "Lucida Console" ) << QString( "Lucida Console" ) << true;
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QTest::newRow( "DejaVu Sans" ) << QString( "DejaVu Sans" ) << false;
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QTest::newRow( "DejaVu Sans Mono" ) << QString( "DejaVu Sans Mono" ) << true;
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#else
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QTest::newRow( "Menlo" ) << QString( "Menlo" ) << true;
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QTest::newRow( "Monaco" ) << QString( "Monaco" ) << true;
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#endif
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}
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void tst_QFontDatabase::fixedPitch()
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{
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QFETCH(QString, font);
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QFETCH(bool, fixedPitch);
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QFontDatabase fdb;
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if (!fdb.families().contains(font))
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QSKIP("Font not installed");
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QCOMPARE(fdb.isFixedPitch(font), fixedPitch);
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QFont qfont(font);
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QFontInfo fi(qfont);
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QCOMPARE(fi.fixedPitch(), fixedPitch);
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}
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#ifdef Q_OS_MAC
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void tst_QFontDatabase::trickyFonts_data()
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{
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QTest::addColumn<QString>("font");
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QTest::newRow( "Geeza Pro" ) << QString( "Geeza Pro" );
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}
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void tst_QFontDatabase::trickyFonts()
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{
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QFETCH(QString, font);
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QFontDatabase fdb;
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if (!fdb.families().contains(font))
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QSKIP( "Font not installed");
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QFont qfont(font);
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QFontInfo fi(qfont);
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QCOMPARE(fi.family(), font);
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}
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#endif
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void tst_QFontDatabase::widthTwoTimes_data()
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{
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QTest::addColumn<QString>("font");
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QTest::addColumn<int>("pixelSize");
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QTest::addColumn<QString>("text");
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QTest::newRow("Arial") << QString("Arial") << 1000 << QString("Some text");
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}
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void tst_QFontDatabase::widthTwoTimes()
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{
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QFETCH(QString, font);
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QFETCH(int, pixelSize);
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QFETCH(QString, text);
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QFont f;
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f.setFamily(font);
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f.setPixelSize(pixelSize);
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QFontMetrics fm(f);
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int w1 = fm.charWidth(text, 0);
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int w2 = fm.charWidth(text, 0);
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QCOMPARE(w1, w2);
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}
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void tst_QFontDatabase::addAppFont_data()
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{
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QTest::addColumn<bool>("useMemoryFont");
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QTest::newRow("font file") << false;
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QTest::newRow("memory font") << true;
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}
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void tst_QFontDatabase::addAppFont()
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{
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QFETCH(bool, useMemoryFont);
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QSignalSpy fontDbChangedSpy(QGuiApplication::instance(), SIGNAL(fontDatabaseChanged()));
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QFontDatabase db;
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const QStringList oldFamilies = db.families();
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QVERIFY(!oldFamilies.isEmpty());
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fontDbChangedSpy.clear();
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int id;
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if (useMemoryFont) {
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QFile fontfile(m_ledFont);
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fontfile.open(QIODevice::ReadOnly);
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QByteArray fontdata = fontfile.readAll();
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QVERIFY(!fontdata.isEmpty());
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id = QFontDatabase::addApplicationFontFromData(fontdata);
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} else {
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id = QFontDatabase::addApplicationFont(m_ledFont);
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}
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#if defined(Q_OS_HPUX) && defined(QT_NO_FONTCONFIG)
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// Documentation says that X11 systems that don't have fontconfig
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// don't support application fonts.
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QCOMPARE(id, -1);
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return;
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#endif
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QCOMPARE(fontDbChangedSpy.count(), 1);
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if (id == -1)
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QSKIP("Skip the test since app fonts are not supported on this system");
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const QStringList addedFamilies = QFontDatabase::applicationFontFamilies(id);
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QVERIFY(!addedFamilies.isEmpty());
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const QStringList newFamilies = db.families();
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QVERIFY(!newFamilies.isEmpty());
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QVERIFY(newFamilies.count() >= oldFamilies.count());
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for (int i = 0; i < addedFamilies.count(); ++i) {
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QString family = addedFamilies.at(i);
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QVERIFY(newFamilies.contains(family));
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QFont qfont(family);
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QFontInfo fi(qfont);
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QCOMPARE(fi.family(), family);
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}
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QVERIFY(QFontDatabase::removeApplicationFont(id));
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QCOMPARE(fontDbChangedSpy.count(), 2);
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QCOMPARE(db.families(), oldFamilies);
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}
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void tst_QFontDatabase::addTwoAppFontsFromFamily()
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{
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int regularId = QFontDatabase::addApplicationFont(m_testFont);
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if (regularId == -1)
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QSKIP("Skip the test since app fonts are not supported on this system");
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int italicId = QFontDatabase::addApplicationFont(m_testFontItalic);
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QVERIFY(italicId != -1);
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QVERIFY(!QFontDatabase::applicationFontFamilies(regularId).isEmpty());
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QVERIFY(!QFontDatabase::applicationFontFamilies(italicId).isEmpty());
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QString regularFontName = QFontDatabase::applicationFontFamilies(regularId).first();
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QString italicFontName = QFontDatabase::applicationFontFamilies(italicId).first();
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QCOMPARE(regularFontName, italicFontName);
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QFont italicFont = QFontDatabase().font(italicFontName,
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QString::fromLatin1("Italic"), 14);
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QVERIFY(italicFont.italic());
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QFontDatabase::removeApplicationFont(regularId);
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QFontDatabase::removeApplicationFont(italicId);
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}
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void tst_QFontDatabase::aliases()
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{
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QFontDatabase db;
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const QStringList families = db.families();
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QVERIFY(!families.isEmpty());
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const QString firstFont = families.front();
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QVERIFY(db.hasFamily(firstFont));
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const QString alias = QStringLiteral("AliasToFirstFont") + firstFont;
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QVERIFY(!db.hasFamily(alias));
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QPlatformFontDatabase::registerAliasToFontFamily(firstFont, alias);
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QVERIFY(db.hasFamily(alias));
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}
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void tst_QFontDatabase::fallbackFonts()
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{
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QTextLayout layout;
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QString s;
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s.append(QChar(0x31));
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s.append(QChar(0x05D0));
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layout.setText(s);
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layout.beginLayout();
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layout.createLine();
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layout.endLayout();
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QList<QGlyphRun> runs = layout.glyphRuns(0, 1);
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foreach (QGlyphRun run, runs) {
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QRawFont rawFont = run.rawFont();
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QVERIFY(rawFont.isValid());
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QCOMPARE(run.glyphIndexes().size(), 1);
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QVERIFY(run.glyphIndexes().at(0) != 0);
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}
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}
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static QString testString()
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{
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return QStringLiteral("foo bar");
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}
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void tst_QFontDatabase::condensedFontWidthNoFontMerging()
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{
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int regularFontId = QFontDatabase::addApplicationFont(m_testFont);
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int condensedFontId = QFontDatabase::addApplicationFont(m_testFontCondensed);
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QVERIFY(!QFontDatabase::applicationFontFamilies(regularFontId).isEmpty());
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QVERIFY(!QFontDatabase::applicationFontFamilies(condensedFontId).isEmpty());
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QString regularFontName = QFontDatabase::applicationFontFamilies(regularFontId).first();
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QString condensedFontName = QFontDatabase::applicationFontFamilies(condensedFontId).first();
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QFont condensedFont1(condensedFontName);
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if (regularFontName == condensedFontName)
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condensedFont1.setStyleName(QStringLiteral("Condensed"));
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condensedFont1.setStyleStrategy(QFont::PreferMatch);
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QFont condensedFont2 = condensedFont1;
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condensedFont2.setStyleStrategy(QFont::StyleStrategy(QFont::NoFontMerging | QFont::PreferMatch));
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QCOMPARE(QFontMetricsF(condensedFont2).horizontalAdvance(QStringLiteral("foobar")),
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QFontMetricsF(condensedFont1).horizontalAdvance(QStringLiteral("foobar")));
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}
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void tst_QFontDatabase::condensedFontWidth()
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{
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QFontDatabase db;
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QFontDatabase::addApplicationFont(m_testFont);
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QFontDatabase::addApplicationFont(m_testFontCondensed);
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QVERIFY(db.hasFamily("QtBidiTestFont"));
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if (!db.hasFamily("QtBidiTestFontCondensed"))
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QSKIP("This platform doesn't support font sub-family names (QTBUG-55625)");
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// Test we really get a condensed font, and a not renormalized one (QTBUG-48043):
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QFont testFont("QtBidiTestFont");
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QFont testFontCondensed("QtBidiTestFontCondensed");
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QFontMetrics fmTF(testFont);
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QFontMetrics fmTFC(testFontCondensed);
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QVERIFY(fmTF.horizontalAdvance(testString()) > fmTFC.horizontalAdvance(testString()));
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}
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void tst_QFontDatabase::condensedFontMatching()
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{
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QFontDatabase db;
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QFontDatabase::removeAllApplicationFonts();
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QFontDatabase::addApplicationFont(m_testFontCondensed);
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if (!db.hasFamily("QtBidiTestFont"))
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QSKIP("This platform doesn't support preferred font family names (QTBUG-53478)");
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QFontDatabase::addApplicationFont(m_testFont);
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// Test we correctly get the condensed font using different font matching methods:
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QFont tfcByStretch("QtBidiTestFont");
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tfcByStretch.setStretch(QFont::Condensed);
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QFont tfcByStyleName("QtBidiTestFont");
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tfcByStyleName.setStyleName("Condensed");
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#ifdef Q_OS_WIN
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QEXPECT_FAIL("","No matching of sub-family by stretch on Windows", Continue);
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#endif
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#ifdef Q_OS_ANDROID
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QEXPECT_FAIL("", "QTBUG-69216", Continue);
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#endif
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QCOMPARE(QFontMetrics(tfcByStretch).horizontalAdvance(testString()),
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QFontMetrics(tfcByStyleName).horizontalAdvance(testString()));
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if (!db.hasFamily("QtBidiTestFontCondensed"))
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QSKIP("This platform doesn't support font sub-family names (QTBUG-55625)");
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QFont tfcBySubfamilyName("QtBidiTestFontCondensed");
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QCOMPARE(QFontMetrics(tfcByStyleName).horizontalAdvance(testString()),
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QFontMetrics(tfcBySubfamilyName).horizontalAdvance(testString()));
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}
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void tst_QFontDatabase::rasterFonts()
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{
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QFont font(QLatin1String("Fixedsys"), 1000);
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QFontInfo fontInfo(font);
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if (fontInfo.family() != font.family())
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QSKIP("Fixedsys font not available.");
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QVERIFY(!QFontDatabase().isSmoothlyScalable(font.family()));
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QVERIFY(fontInfo.pointSize() != font.pointSize());
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}
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void tst_QFontDatabase::smoothFonts()
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{
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QFont font(QLatin1String("Arial"), 1000);
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QFontInfo fontInfo(font);
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if (fontInfo.family() != font.family())
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QSKIP("Arial font not available.");
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// Smooth and bitmap scaling are mutually exclusive
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QVERIFY(QFontDatabase().isSmoothlyScalable(font.family()));
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QVERIFY(!QFontDatabase().isBitmapScalable(font.family()));
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}
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QTEST_MAIN(tst_QFontDatabase)
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#include "tst_qfontdatabase.moc"
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