mirror of
https://github.com/qelectrotech/qelectrotech-source-mirror.git
synced 2026-10-07 20:34:14 +02:00
Beat Hangartner
1e3c618495
A free text (IndependentTextItem) gets a textWidth property: -1 is the automatic width (one line, or lines broken by hand, as today); a positive width makes the text wrap between words. Its top-left corner stays in place. The property is what a spin box and resize handles will set in follow-up changes. File format: the width is saved as text_width on <input>, only when one is set, so a project without widths is saved byte-identical (tst_resaveunchanged). An older QElectroTech ignores the attribute and shows the text on one line, with no load error. DiagramTextItem::setHtml() no longer widens a centred or right-aligned rich text to idealWidth() + 40 when the text has a width of its own; with the automatic width it still does. Test: tst_freetextwidth (--resave keeps the width only where set, --export-svg draws the text wrapped). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
114 lines
4.0 KiB
C++
114 lines
4.0 KiB
C++
/*
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Copyright 2006-2026 The QElectroTech Team
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This file is part of QElectroTech.
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QElectroTech is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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QElectroTech is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <QtTest>
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#include <QDomDocument>
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#include <QProcess>
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#include <QRegularExpression>
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#include <QTemporaryDir>
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#include <QTextDocument>
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/// Run the qelectrotech binary with arguments, without a display.
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static bool runQet(const QStringList &arguments)
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{
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QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
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env.insert(QStringLiteral("QT_QPA_PLATFORM"), QStringLiteral("offscreen"));
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QProcess proc;
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proc.setProcessEnvironment(env);
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proc.start(QStringLiteral(QET_TEST_BINARY_PATH), arguments);
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return proc.waitForFinished(60000)
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&& proc.exitStatus() == QProcess::NormalExit
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&& proc.exitCode() == 0;
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}
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/// The number of lines the words starting with prefix are drawn on.
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static int drawnLines(const QString &svg, const QString &prefix)
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{
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const QRegularExpression text_re(
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QStringLiteral("<text[^>]*\\by=\"([^\"]+)\"[^>]*>\\s*%1").arg(prefix));
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QSet<QString> lines;
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auto it = text_re.globalMatch(svg);
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while (it.hasNext())
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lines.insert(it.next().captured(1));
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return lines.size();
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}
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/**
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A free text with a width (text_width on its <input>) keeps it when the
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project is saved again, and wraps to it. A text without a width is saved
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without the attribute, as before, so older versions read it unchanged.
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*/
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class tst_freetextwidth : public QObject
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{
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Q_OBJECT
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private slots:
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void initTestCase()
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{
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QVERIFY2(QFile::exists(QStringLiteral(QET_TEST_BINARY_PATH)), "qelectrotech binary not found");
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m_fixture = QFINDTESTDATA("fixtures/free_text_width.qet");
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QVERIFY2(!m_fixture.isEmpty(), "fixture project not found");
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QVERIFY(m_dir.isValid());
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}
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void widthIsSavedOnlyWhenSet()
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{
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const QString out = m_dir.filePath(QStringLiteral("resaved.qet"));
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QVERIFY2(runQet({QStringLiteral("--resave"), m_fixture, out}), "--resave failed");
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QFile file(out);
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QVERIFY(file.open(QIODevice::ReadOnly));
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QDomDocument document;
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QVERIFY(document.setContent(&file));
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QMap<QString, QString> widths; // first word -> text_width
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const QDomNodeList inputs = document.elementsByTagName(QStringLiteral("input"));
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for (int i = 0 ; i < inputs.size() ; ++i) {
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const QDomElement input = inputs.at(i).toElement();
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QTextDocument text;
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text.setHtml(input.attribute(QStringLiteral("text")));
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const QString first_word = text.toPlainText().section(QLatin1Char(' '), 0, 0);
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widths.insert(first_word, input.hasAttribute(QStringLiteral("text_width"))
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? input.attribute(QStringLiteral("text_width"))
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: QStringLiteral("none"));
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}
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QCOMPARE(widths.value(QStringLiteral("FreeAlpha")), QStringLiteral("70"));
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QCOMPARE(widths.value(QStringLiteral("OpenAlpha")), QStringLiteral("none"));
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//Centred lines: the width of the user, not the one setHtml() gives
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QCOMPARE(widths.value(QStringLiteral("CentAlpha")), QStringLiteral("120"));
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}
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void textWrapsToItsWidth()
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{
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QVERIFY2(runQet({QStringLiteral("--export-svg"), m_fixture, m_dir.path()}), "--export-svg failed");
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QFile file(m_dir.filePath(QStringLiteral("01_diagram.svg")));
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QVERIFY(file.open(QIODevice::ReadOnly | QIODevice::Text));
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const QString svg = QString::fromUtf8(file.readAll());
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QVERIFY(drawnLines(svg, QStringLiteral("Free")) > 1);
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QCOMPARE(drawnLines(svg, QStringLiteral("Open")), 1);
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}
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private:
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QString m_fixture;
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QTemporaryDir m_dir;
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};
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QTEST_MAIN(tst_freetextwidth)
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#include "tst_freetextwidth.moc"
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