flippablepad.cpp Example File

graphicsview/padnavigator/flippablepad.cpp
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#include "flippablepad.h" #include <QDirIterator> static QRectF boundsFromSize(const QSize &size) { return QRectF((-size.width() / 2.0) * 150, (-size.height() / 2.0) * 150, size.width() * 150, size.height() * 150); } static QPointF posForLocation(int column, int row, const QSize &size) { return QPointF(column * 150, row * 150) - QPointF((size.width() - 1) * 75, (size.height() - 1) * 75); } FlippablePad::FlippablePad(const QSize &size, QGraphicsItem *parent) : RoundRectItem(boundsFromSize(size), QColor(226, 255, 92, 64), parent) { int numIcons = size.width() * size.height(); QList<QPixmap> pixmaps; QDirIterator it(":/images", QStringList() << "*.png"); while (it.hasNext() && pixmaps.size() < numIcons) pixmaps << it.next(); const QRectF iconRect(-54, -54, 108, 108); const QColor iconColor(214, 240, 110, 128); iconGrid.resize(size.height()); int n = 0; for (int y = 0; y < size.height(); ++y) { iconGrid[y].resize(size.width()); for (int x = 0; x < size.width(); ++x) { RoundRectItem *rect = new RoundRectItem(iconRect, iconColor, this); rect->setZValue(1); rect->setPos(posForLocation(x, y, size)); rect->setPixmap(pixmaps.at(n++ % pixmaps.size())); iconGrid[y][x] = rect; } } } RoundRectItem *FlippablePad::iconAt(int column, int row) const { return iconGrid[row][column]; }