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/*
SPDX-FileCopyrightText: 2013 Fabio D 'Urso <fabiodurso@hotmail.it>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "../../settings_core.h"
#include "../generator_kimgio.h"
#include <core/observer.h>
#include <core/page.h>
#include <gui/pagepainter.h>
#include <QTest>
#include <KPluginLoader>
#include <QImage>
#include <QImageReader>
#include <QMimeDatabase>
#include <QPainter>
#include <QTemporaryFile>
class KIMGIOTest : public QObject
{
Q_OBJECT
private Q_SLOTS:
void initTestCase();
void testExifOrientation_data();
void testExifOrientation();
};
void KIMGIOTest::initTestCase()
{
// Make sure we find the okularGenerator_kimgio that we build just now and not the system one
QFileInfo lib(QStringLiteral(GENERATOR_PATH));
QVERIFY2(lib.exists(), GENERATOR_PATH);
QStringList libPaths = QCoreApplication::libraryPaths();
libPaths.prepend(lib.absolutePath());
QCoreApplication::setLibraryPaths(libPaths);
QVERIFY(!KPluginLoader::findPlugin(QStringLiteral("okularGenerator_kimgio")).isEmpty());
// make sure we didn't break the search path for image formats:
auto availableFormats = QImageReader::supportedImageFormats();
QVERIFY2(availableFormats.contains("jpeg"), availableFormats.join(", ").constData());
}
// The following images have different Exif orientation tags, but they all
// are a 3x2 rectangle whose top-left pixel is black, and whose other pixels are
// white. Note that, due to JPEG lossy compression, some pixels are not pure
// white. In testExifOrientation, we only check the top-left and bottom-right
// corners.
void KIMGIOTest::testExifOrientation_data()
{
QTest::addColumn<QString>("imgPath");
// No Exif metadata at all
QTest::newRow("No Exif metadata") << KDESRCDIR "tests/data/testExifOrientation-noexif.jpg";
// No Exif orientation information
QTest::newRow("Unspecified") << KDESRCDIR "tests/data/testExifOrientation-unspecified.jpg";
// Valid Orientation values
QTest::newRow("Horizontal (normal)") << KDESRCDIR "tests/data/testExifOrientation-0.jpg";
QTest::newRow("Mirror horizontal") << KDESRCDIR "tests/data/testExifOrientation-0mirror.jpg";
QTest::newRow("Rotate 90 CW") << KDESRCDIR "tests/data/testExifOrientation-90.jpg";
QTest::newRow("Mirror horizontal and rotate 90 CW") << KDESRCDIR "tests/data/testExifOrientation-90mirror.jpg";
QTest::newRow("Rotate 180") << KDESRCDIR "tests/data/testExifOrientation-180.jpg";
QTest::newRow("Mirror vertical") << KDESRCDIR "tests/data/testExifOrientation-180mirror.jpg";
QTest::newRow("Rotate 270 CW") << KDESRCDIR "tests/data/testExifOrientation-270.jpg";
QTest::newRow("Mirror horizontal and rotate 270 CW") << KDESRCDIR "tests/data/testExifOrientation-270mirror.jpg";
}
void KIMGIOTest::testExifOrientation()
{
QFETCH(QString, imgPath);
QMimeDatabase db;
Okular::SettingsCore::instance(QStringLiteral("kimgiotest"));
Okular::Document *m_document = new Okular::Document(nullptr);
const QMimeType mime = db.mimeTypeForFile(imgPath);
Okular::DocumentObserver *dummyDocumentObserver = new Okular::DocumentObserver();
m_document->addObserver(dummyDocumentObserver);
// Load image
QCOMPARE((int)m_document->openDocument(imgPath, QUrl(), mime), (int)Okular::Document::OpenSuccess);
m_document->setRotation(0); // Test the default rotation
QCOMPARE(m_document->pages(), 1u);
// Check size
QCOMPARE(m_document->page(0)->width(), double(3));
QCOMPARE(m_document->page(0)->height(), double(2));
// Generate pixmap
Okular::PixmapRequest *req = new Okular::PixmapRequest(dummyDocumentObserver, 0, 3, 2, qApp->devicePixelRatio(), 1, Okular::PixmapRequest::NoFeature);
m_document->requestPixmaps({req});
QVERIFY(m_document->page(0)->hasPixmap(dummyDocumentObserver, 3, 2));
// Obtain image
QImage img(3, 2, QImage::Format_ARGB32_Premultiplied);
QPainter p(&img);
PagePainter::paintPageOnPainter(&p, m_document->page(0), dummyDocumentObserver, 0, 3, 2, QRect(0, 0, 3, 2));
// Verify pixel data
QCOMPARE(img.pixel(0, 0), qRgb(0, 0, 0));
QCOMPARE(img.pixel(2, 1), qRgb(255, 255, 255));
m_document->removeObserver(dummyDocumentObserver);
delete dummyDocumentObserver;
delete m_document;
}
QTEST_MAIN(KIMGIOTest)
#include "kimgiotest.moc"