foreach(QString file, Files) { // Add Standard Item QFileInfo finfo(file); QList<QStandardItem *> preparedRow = prepareRow(finfo.fileName(), finfo.suffix(), finfo.absoluteFilePath()); this->fileList->appendRow(preparedRow); }
MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) { treeView = new QTreeView(this); setCentralWidget(treeView); standardModel = new QStandardItemModel ; QList<QStandardItem *> preparedRow =prepareRow("first", "second", "third"); QStandardItem *item = standardModel->invisibleRootItem(); // adding a row to the invisible root item produces a root element item->appendRow(preparedRow); QList<QStandardItem *> secondRow =prepareRow("111", "222", "333"); // adding a row to an item starts a subtree preparedRow.first()->appendRow(secondRow); treeView->setModel(standardModel); treeView->expandAll(); }
void KisSobelFilter::process(KisPaintDeviceSP device, const QRect& applyRect, const KisFilterConfiguration* configuration, KoUpdater* progressUpdater ) const { QPoint srcTopLeft = applyRect.topLeft(); Q_ASSERT(!device.isNull()); //read the filter configuration values from the KisFilterConfiguration object bool doHorizontal = configuration->getBool("doHorizontally", true); bool doVertical = configuration->getBool("doVertically", true); bool keepSign = configuration->getBool("keepSign", true); bool makeOpaque = configuration->getBool("makeOpaque", true); quint32 width = applyRect.width(); quint32 height = applyRect.height(); quint32 pixelSize = device->pixelSize(); int cost = applyRect.height(); /* allocate row buffers */ quint8* prevRow = new quint8[(width + 2) * pixelSize]; Q_CHECK_PTR(prevRow); quint8* curRow = new quint8[(width + 2) * pixelSize]; Q_CHECK_PTR(curRow); quint8* nextRow = new quint8[(width + 2) * pixelSize]; Q_CHECK_PTR(nextRow); quint8* dest = new quint8[ width * pixelSize]; Q_CHECK_PTR(dest); quint8* pr = prevRow + pixelSize; quint8* cr = curRow + pixelSize; quint8* nr = nextRow + pixelSize; prepareRow(device, pr, srcTopLeft.x(), srcTopLeft.y() - 1, width, height); prepareRow(device, cr, srcTopLeft.x(), srcTopLeft.y(), width, height); quint32 counter = 0; quint8* d; quint8* tmp; qint32 gradient, horGradient, verGradient; // loop through the rows, applying the sobel convolution KisHLineIteratorSP dstIt = device->createHLineIteratorNG(srcTopLeft.x(), srcTopLeft.y(), width); for (quint32 row = 0; row < height; row++) { // prepare the next row prepareRow(device, nr, srcTopLeft.x(), srcTopLeft.y() + row + 1, width, height); d = dest; for (quint32 col = 0; col < width * pixelSize; col++) { int positive = col + pixelSize; int negative = col - pixelSize; horGradient = (doHorizontal ? ((pr[negative] + 2 * pr[col] + pr[positive]) - (nr[negative] + 2 * nr[col] + nr[positive])) : 0); verGradient = (doVertical ? ((pr[negative] + 2 * cr[negative] + nr[negative]) - (pr[positive] + 2 * cr[positive] + nr[positive])) : 0); gradient = (qint32)((doVertical && doHorizontal) ? (ROUND(RMS(horGradient, verGradient)) / 5.66) // always >0 : (keepSign ? (127 + (ROUND((horGradient + verGradient) / 8.0))) : (ROUND(qAbs(horGradient + verGradient) / 4.0)))); *d++ = gradient; if (gradient > 10) counter ++; } // shuffle the row pointers tmp = pr; pr = cr; cr = nr; nr = tmp; //store the dest device->writeBytes(dest, srcTopLeft.x(), row, width, 1); if (makeOpaque) { do { device->colorSpace()->setOpacity(dstIt->rawData(), OPACITY_OPAQUE_U8, 1); } while(dstIt->nextPixel()); dstIt->nextRow(); } if (progressUpdater) progressUpdater->setProgress(row / cost); } delete[] prevRow; delete[] curRow; delete[] nextRow; delete[] dest; }