QImage KisSelectionBasedLayer::createThumbnail(qint32 w, qint32 h)
{
KisSelectionSP originalSelection = internalSelection();
KisPaintDeviceSP originalDevice = original();
return originalDevice && originalSelection ?
originalDevice->createThumbnail(w, h,
KoColorConversionTransformation::InternalRenderingIntent,
KoColorConversionTransformation::InternalConversionFlags) :
QImage();
}
void KisPaintDeviceTest::testCaching()
{
const KoColorSpace * cs = KoColorSpaceRegistry::instance()->rgb8();
KisPaintDeviceSP dev = new KisPaintDevice(cs);
quint8* whitePixel = new quint8[cs->pixelSize()];
cs->fromQColor(Qt::white, whitePixel);
quint8* blackPixel = new quint8[cs->pixelSize()];
cs->fromQColor(Qt::black, blackPixel);
dev->fill(0, 0, 512, 512, whitePixel);
QImage thumb1 = dev->createThumbnail(50, 50);
QRect exactBounds1 = dev->exactBounds();
dev->fill(0, 0, 768, 768, blackPixel);
QImage thumb2 = dev->createThumbnail(50, 50);
QRect exactBounds2 = dev->exactBounds();
dev->move(10, 10);
QImage thumb3 = dev->createThumbnail(50, 50);
QRect exactBounds3 = dev->exactBounds();
dev->crop(50, 50, 50, 50);
QImage thumb4 = dev->createThumbnail(50, 50);
QRect exactBounds4 = dev->exactBounds();
QVERIFY(thumb1 != thumb2);
QVERIFY(thumb2 == thumb3); // Cache miss, but image is the same
QVERIFY(thumb3 != thumb4);
QVERIFY(thumb4 != thumb1);
QCOMPARE(exactBounds1, QRect(0,0,512,512));
QCOMPARE(exactBounds2, QRect(0,0,768,768));
QCOMPARE(exactBounds3, QRect(10,10,768,768));
QCOMPARE(exactBounds4, QRect(50,50,50,50));
}
void KisPaintDeviceTest::testThumbnailDeviceWithOffset()
{
QImage image(QString(FILES_DATA_DIR) + QDir::separator() + "hakonepa.png");
const KoColorSpace * cs = KoColorSpaceRegistry::instance()->rgb8();
KisPaintDeviceSP dev = new KisPaintDevice(cs);
dev->convertFromQImage(image, 0);
dev->setX(10);
dev->setY(10);
QImage thumb = dev->createThumbnail(640,441,QRect(10,10,640,441));
image.save("oring.png");
thumb.save("thumb.png");
QPoint pt;
QVERIFY(TestUtil::compareQImages(pt, thumb, image));
}
void KisPaintDeviceTest::testThumbnail()
{
QImage image(QString(FILES_DATA_DIR) + QDir::separator() + "hakonepa.png");
const KoColorSpace * cs = KoColorSpaceRegistry::instance()->rgb8();
KisPaintDeviceSP dev = new KisPaintDevice(cs);
dev->convertFromQImage(image, 0);
{
KisPaintDeviceSP thumb = dev->createThumbnailDevice(50, 50);
QRect rc = thumb->exactBounds();
QVERIFY(rc.width() <= 50);
QVERIFY(rc.height() <= 50);
}
{
QImage thumb = dev->createThumbnail(50, 50);
QVERIFY(!thumb.isNull());
QVERIFY(thumb.width() <= 50);
QVERIFY(thumb.height() <= 50);
image.save("kis_paint_device_test_test_thumbnail.png");
}
}