mirror of
https://invent.kde.org/frameworks/kimageformats.git
synced 2026-02-09 04:40:05 -05:00
0c25cb5b8c
Allows to read XCursor files, including ones with animation. The cursor hotspot is set in QImage textKeys as "HotspotX" and "HotspotY". The "Sizes" textKey contains a list of available sizes in this file.
130 lines
3.6 KiB
C++
130 lines
3.6 KiB
C++
/*
|
|
* SPDX-FileCopyrightText: 2026 Kai Uwe Broulik <kde@broulik.de>
|
|
*
|
|
* SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
|
|
*/
|
|
|
|
#include <QImage>
|
|
#include <QImageReader>
|
|
#include <QTest>
|
|
|
|
using namespace Qt::StringLiterals;
|
|
|
|
static bool imgEquals(const QImage &im1, const QImage &im2)
|
|
{
|
|
const int height = im1.height();
|
|
const int width = im1.width();
|
|
for (int i = 0; i < height; ++i) {
|
|
const auto *line1 = reinterpret_cast<const quint8 *>(im1.scanLine(i));
|
|
const auto *line2 = reinterpret_cast<const quint8 *>(im2.scanLine(i));
|
|
for (int j = 0; j < width; ++j) {
|
|
if (line1[j] - line2[j] != 0) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
class XCursorTests : public QObject
|
|
{
|
|
Q_OBJECT
|
|
|
|
private Q_SLOTS:
|
|
void initTestCase()
|
|
{
|
|
QCoreApplication::addLibraryPath(QStringLiteral(PLUGIN_DIR));
|
|
}
|
|
|
|
void testReadMetadata()
|
|
{
|
|
QImageReader reader(QFINDTESTDATA("xcursor/wait"));
|
|
|
|
QVERIFY(reader.canRead());
|
|
|
|
QCOMPARE(reader.imageCount(), 18);
|
|
|
|
// By default it chooses the largest size
|
|
QCOMPARE(reader.size(), QSize(72, 72));
|
|
|
|
QCOMPARE(reader.text(u"Sizes"_s), u"24,48,72"_s);
|
|
}
|
|
|
|
void testRead_data()
|
|
{
|
|
QTest::addColumn<int>("size");
|
|
QTest::addColumn<int>("reference");
|
|
|
|
// It prefers downsampling over upsampling.
|
|
QTest::newRow("12px") << 12 << 24;
|
|
QTest::newRow("24px") << 24 << 24;
|
|
QTest::newRow("48px") << 48 << 48;
|
|
QTest::newRow("50px") << 50 << 72;
|
|
QTest::newRow("72px") << 72 << 72;
|
|
QTest::newRow("default") << 0 << 72;
|
|
}
|
|
|
|
void testRead()
|
|
{
|
|
QFETCH(int, size);
|
|
QFETCH(int, reference);
|
|
|
|
QImageReader reader(QFINDTESTDATA("xcursor/wait"));
|
|
QVERIFY(reader.canRead());
|
|
QCOMPARE(reader.currentImageNumber(), 0);
|
|
|
|
if (size) {
|
|
reader.setScaledSize(QSize(size, size));
|
|
}
|
|
|
|
QCOMPARE(reader.size(), QSize(reference, reference));
|
|
|
|
QImage aniFrame;
|
|
QVERIFY(reader.read(&aniFrame));
|
|
|
|
QImage img1(QFINDTESTDATA(u"xcursor/wait_%1_1.png"_s.arg(reference)));
|
|
img1.convertTo(aniFrame.format());
|
|
|
|
QVERIFY(imgEquals(aniFrame, img1));
|
|
|
|
QCOMPARE(reader.nextImageDelay(), 40);
|
|
QCOMPARE(reader.text(u"HotspotX"_s), u"48"_s);
|
|
QCOMPARE(reader.text(u"HotspotY"_s), u"48"_s);
|
|
|
|
QVERIFY(reader.canRead());
|
|
// that read() above should have advanced us to the next frame
|
|
QCOMPARE(reader.currentImageNumber(), 1);
|
|
|
|
QVERIFY(reader.read(&aniFrame));
|
|
QImage img2(QFINDTESTDATA(u"xcursor/wait_%1_2.png"_s.arg(reference)));
|
|
img2.convertTo(aniFrame.format());
|
|
|
|
QVERIFY(imgEquals(aniFrame, img2));
|
|
|
|
// Would be nice to have a cursor with variable delay and hotspot :-)
|
|
QCOMPARE(reader.nextImageDelay(), 40);
|
|
QCOMPARE(reader.text(u"HotspotX"_s), u"48"_s);
|
|
QCOMPARE(reader.text(u"HotspotY"_s), u"48"_s);
|
|
|
|
QVERIFY(reader.canRead());
|
|
QCOMPARE(reader.currentImageNumber(), 2);
|
|
|
|
QVERIFY(reader.read(&aniFrame));
|
|
QImage img3(QFINDTESTDATA(u"xcursor/wait_%1_3.png"_s.arg(reference)));
|
|
img3.convertTo(aniFrame.format());
|
|
|
|
QVERIFY(imgEquals(aniFrame, img3));
|
|
|
|
QCOMPARE(reader.text(u"HotspotX"_s), u"48"_s);
|
|
QCOMPARE(reader.text(u"HotspotY"_s), u"48"_s);
|
|
QCOMPARE(reader.nextImageDelay(), 40);
|
|
|
|
QVERIFY(reader.canRead());
|
|
QCOMPARE(reader.currentImageNumber(), 3);
|
|
}
|
|
};
|
|
|
|
QTEST_MAIN(XCursorTests)
|
|
|
|
#include "xcursortest.moc"
|