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| |
| #include "flippablepad.h" |
| |
| #include <QDirIterator> |
| |
| //! [0] |
| static QRectF boundsFromSize(const QSize &size) |
| { |
| return QRectF((-size.width() / 2.0) * 150, (-size.height() / 2.0) * 150, |
| size.width() * 150, size.height() * 150); |
| } |
| //! [0] |
| |
| //! [1] |
| 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); |
| } |
| //! [1] |
| |
| //! [2] |
| FlippablePad::FlippablePad(const QSize &size, QGraphicsItem *parent) |
| : RoundRectItem(boundsFromSize(size), QColor(226, 255, 92, 64), parent) |
| { |
| //! [2] |
| //! [3] |
| int numIcons = size.width() * size.height(); |
| QVector<QPixmap> pixmaps; |
| QDirIterator it(":/images", {"*.png"}); |
| while (it.hasNext() && pixmaps.size() < numIcons) |
| pixmaps << it.next(); |
| //! [3] |
| |
| //! [4] |
| 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; |
| } |
| } |
| } |
| //! [4] |
| |
| //! [5] |
| RoundRectItem *FlippablePad::iconAt(int column, int row) const |
| { |
| return iconGrid[row][column]; |
| } |
| //! [5] |