Files
qelectrotech-source-mirror/tests/qttest/tst_dxfcurves.cpp
T
ispyisail 83f72c95c6 Fix DXF export of circles, arcs and the title block at the right (#1339)
Circles and arcs: drawArcEllipse() split each curve into quarters and
fitted a circular ARC through a point half way between the curve and its
chord, so every circle came out as a flattened diamond. A circle or an
arc of one is now one exact CIRCLE or ARC. R10 has no ELLIPSE entity, so
a true ellipse is a polyline through the curve, one point every 5
degrees. The export also used a different scale on each axis, which made
round things oval; it now uses one, the largest that fits the sheet.

Title block at the right: the DXF laid the horizontal template out in
the narrow vertical strip, squashing it into the top corner. It is now
laid out horizontally and turned a quarter, as draw() turns the painter.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-07 08:13:52 +13:00

96 lines
3.6 KiB
C++

/*
Copyright 2006-2026 The QElectroTech Team
This file is part of QElectroTech.
QElectroTech is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
QElectroTech is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
*/
#include <QtTest>
#include <QProcess>
#include <QTemporaryDir>
/**
--export-dxf on a folio whose title block is at the right (issue #1339):
a symbol's circle is one CIRCLE and its arc one ARC with the symbol's own
angles, which needs the same scale on both axes; the title block is
turned a quarter, as it is on screen.
*/
class tst_dxfcurves : public QObject
{
Q_OBJECT
/// The entities on @a layer, each as its group codes and values.
static QList<QMultiHash<int, QString>> entities(const QStringList &values,
const QString &type,
const QString &layer)
{
QList<QMultiHash<int, QString>> found;
for (int i = 0 ; i + 1 < values.size() ; i += 2)
{
if (values.at(i).trimmed() != QLatin1String("0")
|| values.at(i + 1).trimmed() != type)
continue;
QMultiHash<int, QString> entity;
for (int j = i + 2 ; j + 1 < values.size()
&& values.at(j).trimmed() != QLatin1String("0") ; j += 2)
entity.insert(values.at(j).trimmed().toInt(), values.at(j + 1).trimmed());
if (entity.value(8) == layer)
found << entity;
}
return found;
}
private slots:
void curvesAndTitleBlock()
{
const QString project = QFINDTESTDATA("fixtures/dxf_curves.qet");
QVERIFY2(!project.isEmpty(), "fixture project not found");
QTemporaryDir dir;
QVERIFY(dir.isValid());
QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
env.insert(QStringLiteral("QT_QPA_PLATFORM"), QStringLiteral("offscreen"));
QProcess proc;
proc.setProcessEnvironment(env);
proc.start(QStringLiteral(QET_TEST_BINARY_PATH), {QStringLiteral("--export-dxf"), project, dir.path()});
QVERIFY2(proc.waitForFinished(60000), "--export-dxf timed out");
QCOMPARE(proc.exitCode(), 0);
QFile file(dir.filePath(QStringLiteral("01_diagram.dxf")));
QVERIFY(file.open(QIODevice::ReadOnly | QIODevice::Text));
const QStringList values = QString::fromUtf8(file.readAll()).split(QLatin1Char('\n'));
const QString symbols = QStringLiteral("QET_SYMBOLS");
//The 20 px circle: one CIRCLE, nothing approximated
const auto circles = entities(values, QStringLiteral("CIRCLE"), symbols);
QCOMPARE(circles.size(), 1);
QVERIFY(entities(values, QStringLiteral("POLYLINE"), symbols).isEmpty());
//The arc from 30 to 150 degrees, same radius as the circle
const auto arcs = entities(values, QStringLiteral("ARC"), symbols);
QCOMPARE(arcs.size(), 1);
QCOMPARE(arcs.first().value(50).toDouble(), 30.0);
QCOMPARE(arcs.first().value(51).toDouble(), 150.0);
QCOMPARE(arcs.first().value(40).toDouble(), circles.first().value(40).toDouble());
//Every title block text turned a quarter, as drawn on screen
const auto texts = entities(values, QStringLiteral("TEXT"), QStringLiteral("QET_TITLEBLOCK"));
QVERIFY(!texts.isEmpty());
for (const auto &text : texts)
QCOMPARE(text.value(50).toDouble(), 90.0);
}
};
QTEST_APPLESS_MAIN(tst_dxfcurves)
#include "tst_dxfcurves.moc"