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#include "flippablepad.h"

#include <QtGui/QtGui>

//! [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();

    QList<QPixmap> pixmaps;

    QDirIterator it(":/images", QStringList() << "*.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]