C++ KisPaintDeviceSP::exactBounds方法代码示例

void KisClipboardTest::testRoundTrip()
{
    const KoColorSpace *cs = KoColorSpaceRegistry::instance()->rgb8();
    KisPaintDeviceSP dev = new KisPaintDevice(cs);
    KisPaintDeviceSP newDev;
    QPoint errorPoint;

    QRect fillRect(10,10,20,20);
    KoColor pixel(Qt::red, cs);
    dev->fill(fillRect.x(),fillRect.y(),
              fillRect.width(), fillRect.height(), pixel.data());

    QCOMPARE(dev->exactBounds(), fillRect);
    KisClipboard::instance()->setClip(dev, QPoint());
    newDev = KisClipboard::instance()->clip(QPoint());
    QCOMPARE(newDev->exactBounds().size(), fillRect.size());
    newDev->setX(dev->x());
    newDev->setY(dev->y());
    QVERIFY(TestUtil::comparePaintDevices(errorPoint, dev, newDev));

    QPoint offset(100,100);
    dev->setX(offset.x());
    dev->setY(offset.y());

    QCOMPARE(dev->exactBounds(), fillRect.translated(offset));
    KisClipboard::instance()->setClip(dev, QPoint());
    newDev = KisClipboard::instance()->clip(QPoint());
    QCOMPARE(newDev->exactBounds().size(), fillRect.translated(offset).size());
    newDev->setX(dev->x());
    newDev->setY(dev->y());
    QVERIFY(TestUtil::comparePaintDevices(errorPoint, dev, newDev));
}

void KisPaintDeviceTest::testClear()
{
    const KoColorSpace * cs = KoColorSpaceRegistry::instance()->rgb8();
    KisPaintDeviceSP dev = new KisPaintDevice(cs);

    QVERIFY(dev->extent() == QRect(2147483647, 2147483647, 0, 0));
    QVERIFY(dev->exactBounds() == QRect(2147483647, 2147483647, 0, 0));

    dev->clear();

    QVERIFY(dev->extent() == QRect(2147483647, 2147483647, 0, 0));
    QVERIFY(dev->exactBounds() == QRect(2147483647, 2147483647, 0, 0));

    dev->clear(QRect(100, 100, 100, 100));

    // XXX: This is strange!
    QVERIFY(dev->extent() == QRect(64, 64, 192, 192));
    QVERIFY(dev->exactBounds() == QRect(64, 64, 192, 192));

    dev->clear();

    QVERIFY(dev->extent() == QRect(2147483647, 2147483647, 0, 0));
    QVERIFY(dev->exactBounds() == QRect(2147483647, 2147483647, 0, 0));

}

    QVector<QPoint> splitIntoConnectedComponents(KisPaintDeviceSP dev,
                                                 const QRect &boundingRect)
{
    QVector<QPoint> points;
    const KoColorSpace *cs = dev->colorSpace();

    const QRect rect = dev->exactBounds() & boundingRect;
    if (rect.isEmpty()) return points;

    /**
     * Please note that since we modify the device inside
     * clearNonZeroComponent() call, we must use a *writable*
     * iterator, for not ending up with a lazy copied old version of a
     * device.
     */
    KisSequentialIterator dstIt(dev, rect);

    do {
        if (cs->opacityU8(dstIt.rawData()) > 0) {
            const QPoint pt(dstIt.x(), dstIt.y());
            points << pt;

            KisScanlineFill fill(dev, pt, rect);
            fill.clearNonZeroComponent();
        }
    } while (dstIt.nextPixel());

    return points;
}

void KisPasteNewActionFactory::run(KisViewManager *viewManager)
{
    Q_UNUSED(viewManager);

    KisPaintDeviceSP clip = KisClipboard::instance()->clip(QRect(), true);
    if (!clip) return;

    QRect rect = clip->exactBounds();
    if (rect.isEmpty()) return;

    KisDocument *doc = KisPart::instance()->createDocument();

    KisImageSP image = new KisImage(doc->createUndoStore(),
                                    rect.width(),
                                    rect.height(),
                                    clip->colorSpace(),
                                    i18n("Pasted"));
    KisPaintLayerSP layer =
        new KisPaintLayer(image.data(), clip->objectName(),
                          OPACITY_OPAQUE_U8, clip->colorSpace());

    KisPainter::copyAreaOptimized(QPoint(), clip, layer->paintDevice(), rect);

    image->addNode(layer.data(), image->rootLayer());
    doc->setCurrentImage(image);
    KisPart::instance()->addDocument(doc);

    KisMainWindow *win = viewManager->mainWindow();
    win->addViewAndNotifyLoadingCompleted(doc);
}

void KisGmicSimpleConvertor::convertToGmicImage(KisPaintDeviceSP dev, gmic_image< float >& gmicImage)
{
    const KoColorSpace *rgbaFloat32bitcolorSpace = KoColorSpaceRegistry::instance()->colorSpace(RGBAColorModelID.id(),
                                                                                                Float32BitsColorDepthID.id(),
                                                                                                KoColorSpaceRegistry::instance()->rgb8()->profile());

    Q_CHECK_PTR(rgbaFloat32bitcolorSpace);
    dev->convertTo(rgbaFloat32bitcolorSpace);

    QRect rc = dev->exactBounds();
    m_planarBytes = dev->readPlanarBytes(rc.x(), rc.y(), rc.width(), rc.height());
    setChannelSize(rc.width() * rc.height());

    int greenOffset = gmicImage._width * gmicImage._height;
    int blueOffset = greenOffset * 2;
    int alphaOffset = greenOffset * 3;
    quint8 * redChannelBytes   = m_planarBytes.at(KoRgbF32Traits::red_pos);
    quint8 * greenChannelBytes = m_planarBytes.at(KoRgbF32Traits::green_pos);
    quint8 * blueChannelBytes  = m_planarBytes.at(KoRgbF32Traits::blue_pos);
    quint8 * alphaChannelBytes = m_planarBytes.at(KoRgbF32Traits::alpha_pos);

    unsigned int channelSize = sizeof(float);

    memcpy(gmicImage._data                  ,redChannelBytes    ,gmicImage._width * gmicImage._height * channelSize);
    memcpy(gmicImage._data + greenOffset    ,greenChannelBytes  ,gmicImage._width * gmicImage._height * channelSize);
    memcpy(gmicImage._data + blueOffset     ,blueChannelBytes   ,gmicImage._width * gmicImage._height * channelSize);
    memcpy(gmicImage._data + alphaOffset    ,alphaChannelBytes  ,gmicImage._width * gmicImage._height * channelSize);
}

void KisPaintDeviceTest::testMakeClone()
{
    QImage image(QString(FILES_DATA_DIR) + QDir::separator() + "hakonepa.png");

    const KoColorSpace * cs = KoColorSpaceRegistry::instance()->rgb8();
    KisPaintDeviceSP srcDev = new KisPaintDevice(cs);
    srcDev->convertFromQImage(image, 0);
    srcDev->move(10,10);

    const KoColorSpace * weirdCS = KoColorSpaceRegistry::instance()->lab16();
    KisPaintDeviceSP dstDev = new KisPaintDevice(weirdCS);
    dstDev->move(1000,1000);

    QVERIFY(!dstDev->fastBitBltPossible(srcDev));

    QRect cloneRect(100,100,200,200);
    QPoint errpoint;

    dstDev->makeCloneFrom(srcDev, cloneRect);

    QVERIFY(*dstDev->colorSpace() == *srcDev->colorSpace());
    QCOMPARE(dstDev->pixelSize(), srcDev->pixelSize());
    QCOMPARE(dstDev->x(), srcDev->x());
    QCOMPARE(dstDev->y(), srcDev->y());
    QCOMPARE(dstDev->exactBounds(), cloneRect);

    QImage srcImage = srcDev->convertToQImage(0, cloneRect.x(), cloneRect.y(),
                                              cloneRect.width(), cloneRect.height());
    QImage dstImage = dstDev->convertToQImage(0, cloneRect.x(), cloneRect.y(),
                                              cloneRect.width(), cloneRect.height());
    if (!TestUtil::compareQImages(errpoint, dstImage, srcImage)) {
        QFAIL(QString("Failed to create identical image, first different pixel: %1,%2 \n").arg(errpoint.x()).arg(errpoint.y()).toLatin1());
    }
}

void KisTransformWorkerTest::testIdentity()
{
    TestUtil::TestProgressBar bar;
    KoProgressUpdater pu(&bar);
    KoUpdaterPtr updater = pu.startSubtask();

    const KoColorSpace * cs = KoColorSpaceRegistry::instance()->rgb8();
    QImage image(QString(FILES_DATA_DIR) + QDir::separator() + "mirror_source.png");
    KisPaintDeviceSP dev = new KisPaintDevice(cs);
    dev->convertFromQImage(image, "");
    KisFilterStrategy * filter = new KisBoxFilterStrategy();

    KisTransaction t("test", dev);
    KisTransformWorker tw(dev, 1.0, 1.0,
                          0.0, 0.0,
                          0.0, 0.0,
                          0.0,
                          0, 0, updater, filter, true);
    tw.run();
    t.end();
    
    QRect rc = dev->exactBounds();

    QVERIFY(rc.width() ==image.width());
    QVERIFY(rc.height() == image.height());

    QImage result = dev->convertToQImage(0, rc.x(), rc.y(), rc.width(), rc.height());
    QPoint errpoint;
    if (!TestUtil::compareQImages(errpoint, image, result)) {
        image.save("test_identity_source.png");
        result.save("test_identity_result.png");
        QFAIL(QString("Failed to apply identity transformation to image, first different pixel: %1,%2 \n").arg(errpoint.x()).arg(errpoint.y()).toAscii());
    }
}

void KisPasteNewActionFactory::run(KisView2 *view)
{
    Q_UNUSED(view);

    KisPaintDeviceSP clip = KisClipboard::instance()->clip(QRect(), true);
    if (!clip) return;

    QRect rect = clip->exactBounds();
    if (rect.isEmpty()) return;

    KisDoc2 *doc = new KisDoc2();
    if (!doc) return;

    KisImageSP image = new KisImage(doc->createUndoStore(),
                                    rect.width(),
                                    rect.height(),
                                    clip->colorSpace(),
                                    i18n("Pasted"));
    KisPaintLayerSP layer =
        new KisPaintLayer(image.data(), clip->objectName(),
                          OPACITY_OPAQUE_U8, clip->colorSpace());

    KisPainter p(layer->paintDevice());
    p.setCompositeOp(COMPOSITE_COPY);
    p.bitBlt(0, 0, clip, rect.x(), rect.y(), rect.width(), rect.height());
    p.end();

    image->addNode(layer.data(), image->rootLayer());
    doc->setCurrentImage(image);

    KoMainWindow *win = doc->documentPart()->createMainWindow();
    win->show();
    win->setRootDocument(doc);
}

void KisShearVisitor::shear(KisPaintDeviceSP dev, qreal angleX, qreal angleY, KoUpdater *progress)
{
    const qreal pi = 3.1415926535897932385;
    qreal thetaX = angleX * pi / 180;
    qreal shearX = tan(thetaX);
    qreal thetaY = angleY * pi / 180;
    qreal shearY = tan(thetaY);

    QRect r = dev->exactBounds();
    progress->setRange(0, r.height() + r.width());

    KisPaintDeviceSP sheared;
    sheared = xShear(dev, shearX, progress);

    sheared = yShear(sheared, shearY, progress);
    dev->clear();

    KisPainter p2(dev);
    r = sheared->extent();

    p2.bitBlt(r.x(), r.y(), sheared, r.x(), r.y(), r.width(), r.height());
    p2.end();

    progress->setProgress(progress->maximum());
}

void KisSmallTilesFilter::processImpl(KisPaintDeviceSP device,
                                      const QRect& /*applyRect*/,
                                      const KisFilterConfiguration* config,
                                      KoUpdater* progressUpdater
                                      ) const
{
    Q_ASSERT(!device.isNull());

    //read the filter configuration values from the KisFilterConfiguration object
    quint32 numberOfTiles = config->getInt("numberOfTiles", 2);

    QRect srcRect = device->exactBounds();

    int w = static_cast<int>(srcRect.width() / numberOfTiles);
    int h = static_cast<int>(srcRect.height() / numberOfTiles);

    KisPaintDeviceSP tile = device->createThumbnailDevice(srcRect.width() / numberOfTiles, srcRect.height() / numberOfTiles);
    if (tile.isNull()) return;

    KisPainter gc(device);
    gc.setCompositeOp(COMPOSITE_COPY);

    if (progressUpdater) {
        progressUpdater->setRange(0, numberOfTiles);
    }

    for (uint y = 0; y < numberOfTiles; ++y) {
        for (uint x = 0; x < numberOfTiles; ++x) {
            gc.bitBlt(w * x, h * y, tile, 0, 0, w, h);
        }
        if (progressUpdater) progressUpdater->setValue(y);
    }
    gc.end();
}

void KisPerspectiveTransformWorker::runPartialDst(KisPaintDeviceSP srcDev,
                                                  KisPaintDeviceSP dstDev,
                                                  const QRect &dstRect)
{
    if (m_isIdentity) {
        KisPainter::copyAreaOptimizedOldData(dstRect.topLeft(), srcDev, dstDev, dstRect);
        return;
    }

    QRectF srcClipRect = srcDev->exactBounds();
    if (srcClipRect.isEmpty()) return;

    KisProgressUpdateHelper progressHelper(m_progressUpdater, 100, dstRect.height());

    KisRandomSubAccessorSP srcAcc = srcDev->createRandomSubAccessor();
    KisRandomAccessorSP accessor = dstDev->createRandomAccessorNG(dstRect.x(), dstRect.y());

    for (int y = dstRect.y(); y < dstRect.y() + dstRect.height(); ++y) {
        for (int x = dstRect.x(); x < dstRect.x() + dstRect.width(); ++x) {

            QPointF dstPoint(x, y);
            QPointF srcPoint = m_backwardTransform.map(dstPoint);

            if (srcClipRect.contains(srcPoint)) {
                accessor->moveTo(dstPoint.x(), dstPoint.y());
                srcAcc->moveTo(srcPoint.x(), srcPoint.y());
                srcAcc->sampledOldRawData(accessor->rawData());
            }
        }
        progressHelper.step();
    }

}

void testWrappedLineIterator(QString testName, const QRect &rect)
{
    testName = QString("%1_%2_%3_%4_%5")
        .arg(testName)
        .arg(rect.x())
        .arg(rect.y())
        .arg(rect.width())
        .arg(rect.height());

    const KoColorSpace *cs = KoColorSpaceRegistry::instance()->rgb8();
    KisPaintDeviceSP dev = createWrapAroundPaintDevice(cs);

    // test rect fits the wrap rect in both dimensions
    IteratorSP it = createIterator<IteratorSP>(dev, rect);

    int y = 0;
    do {
        int x = 0;
        do {
            quint8 *data = it->rawData();

            data[0] = 10 * x;
            data[1] = 10 * y;
            data[2] = 0;
            data[3] = 255;

            x++;
        } while (it->nextPixel());
    } while (nextRowGeneral(it, ++y, rect));

    QRect rc = dev->defaultBounds()->bounds() | dev->exactBounds();
    QImage result = dev->convertToQImage(0, rc.x(), rc.y(), rc.width(), rc.height());

    QVERIFY(TestUtil::checkQImage(result, "paint_device_test", "wrapped_iterators", testName));
}

void KisConvolutionPainterTest::testGaussianBase(KisPaintDeviceSP dev, bool useFftw, const QString &prefix)
{
   QBitArray channelFlags =
       KoColorSpaceRegistry::instance()->rgb8()->channelFlags(true, true);

   KisPainter gc(dev);


   qreal horizontalRadius = 5, verticalRadius = 5;

   for(int i = 0; i < 3 ; i++, horizontalRadius+=5, verticalRadius+=5)
   {
       QTime timer;
       timer.start();

       gc.beginTransaction();

       if (( horizontalRadius > 0 ) && ( verticalRadius > 0 )) {
           KisPaintDeviceSP interm = new KisPaintDevice(dev->colorSpace());

           KisConvolutionKernelSP kernelHoriz = KisGaussianKernel::createHorizontalKernel(horizontalRadius);
           KisConvolutionKernelSP kernelVertical = KisGaussianKernel::createVerticalKernel(verticalRadius);

           const QRect applyRect = dev->exactBounds();

           KisConvolutionPainter::TestingEnginePreference enginePreference =
               useFftw ?
               KisConvolutionPainter::FFTW :
               KisConvolutionPainter::SPATIAL;

           KisConvolutionPainter horizPainter(interm, enginePreference);
           horizPainter.setChannelFlags(channelFlags);
           horizPainter.applyMatrix(kernelHoriz, dev,
                                    applyRect.topLeft() - QPoint(0, verticalRadius),
                                    applyRect.topLeft() - QPoint(0, verticalRadius),
                                    applyRect.size() + QSize(0, 2 * verticalRadius),
                                    BORDER_REPEAT);

           KisConvolutionPainter verticalPainter(dev, enginePreference);
           verticalPainter.setChannelFlags(channelFlags);
           verticalPainter.applyMatrix(kernelVertical, interm,
                                       applyRect.topLeft(),
                                       applyRect.topLeft(),
                                       applyRect.size(), BORDER_REPEAT);

           QImage result = dev->convertToQImage(0, applyRect.x(), applyRect.y(), applyRect.width(), applyRect.height());

           QString engine = useFftw ? "fftw" : "spatial";
           QString testCaseName = QString("test_gaussian_%1_%2_%3.png").arg(horizontalRadius).arg(verticalRadius).arg(engine);

           TestUtil::checkQImage(result,
                                 "convolution_painter_test",
                                 QString("gaussian_") + prefix,
                                 testCaseName);

           gc.revertTransaction();
       }
       dbgKrita << "Elapsed time:" << timer.elapsed() << "ms";
    }
}

void KisPaintDeviceTest::testCrop()
{
    const KoColorSpace * cs = KoColorSpaceRegistry::instance()->rgb8();
    KisPaintDeviceSP dev = new KisPaintDevice(cs);
    quint8* pixel = new quint8[cs->pixelSize()];
    cs->fromQColor(Qt::white, pixel);
    dev->fill(-14, 8, 433, 512, pixel);

    QVERIFY(dev->exactBounds() == QRect(-14, 8, 433, 512));

    // Crop inside
    dev->crop(50, 50, 150, 150);
    QVERIFY(dev->exactBounds() == QRect(50, 50, 150, 150));

    // Crop outside, pd should not grow
    dev->crop(0, 0, 1000, 1000);
    QVERIFY(dev->exactBounds() == QRect(50, 50, 150, 150));
}

void KisPaintDeviceTest::testExactBoundsWeirdNullAlphaCase()
{
    const KoColorSpace *cs = KoColorSpaceRegistry::instance()->rgb8();
    KisPaintDeviceSP dev = new KisPaintDevice(cs);

    QVERIFY(dev->exactBounds().isEmpty());

    dev->fill(QRect(10,10,10,10), KoColor(Qt::white, cs));

    QCOMPARE(dev->exactBounds(), QRect(10,10,10,10));

    const quint8 weirdPixelData[4] = {0,10,0,0};
    KoColor weirdColor(weirdPixelData, cs);
    dev->setPixel(6,6,weirdColor);

    // such weird pixels should not change our opinion about
    // device's size
    QCOMPARE(dev->exactBounds(), QRect(10,10,10,10));
}