void Main::addCircle()
{
QAbstractGraphicsShapeItem* i = canvas.addEllipse(QRectF(0,0,50,50));
i->setFlag(QGraphicsItem::ItemIsMovable);
i->setPen(Qt::NoPen);
i->setBrush( QColor(qrand()%32*8,qrand()%32*8,qrand()%32*8) );
i->setPos(qrand()%int(canvas.width()),qrand()%int(canvas.height()));
i->setZValue(qrand()%256);
}
void Lighting::setupScene()
{
m_scene.setSceneRect(-300, -200, 600, 460);
QLinearGradient linearGrad(QPointF(-100, -100), QPointF(100, 100));
linearGrad.setColorAt(0, QColor(255, 255, 255));
linearGrad.setColorAt(1, QColor(192, 192, 255));
setBackgroundBrush(linearGrad);
QRadialGradient radialGrad(30, 30, 30);
radialGrad.setColorAt(0, Qt::yellow);
radialGrad.setColorAt(0.2, Qt::yellow);
radialGrad.setColorAt(1, Qt::transparent);
QPixmap pixmap(60, 60);
pixmap.fill(Qt::transparent);
QPainter painter(&pixmap);
painter.setPen(Qt::NoPen);
painter.setBrush(radialGrad);
painter.drawEllipse(0, 0, 60, 60);
painter.end();
m_lightSource = m_scene.addPixmap(pixmap);
m_lightSource->setZValue(2);
for (int i = -2; i < 3; ++i)
for (int j = -2; j < 3; ++j) {
QAbstractGraphicsShapeItem *item;
if ((i + j) & 1)
item = new QGraphicsEllipseItem(0, 0, 50, 50);
else
item = new QGraphicsRectItem(0, 0, 50, 50);
item->setPen(QPen(Qt::black, 1));
item->setBrush(QBrush(Qt::white));
QGraphicsDropShadowEffect *effect = new QGraphicsDropShadowEffect;
effect->setBlurRadius(8);
item->setGraphicsEffect(effect);
item->setZValue(1);
item->setPos(i * 80, j * 80);
m_scene.addItem(item);
m_items << item;
}
}
void Main::addLogo()
{
if ( logo_fn.isEmpty() )
return;
if ( !logoimg ) {
logoimg = new QImage[4];
logoimg[0].load( logo_fn );
logoimg[1] = logoimg[0].smoothScale( int(logoimg[0].width()*0.75),
int(logoimg[0].height()*0.75) );
logoimg[2] = logoimg[0].smoothScale( int(logoimg[0].width()*0.5),
int(logoimg[0].height()*0.5) );
logoimg[3] = logoimg[0].smoothScale( int(logoimg[0].width()*0.25),
int(logoimg[0].height()*0.25) );
}
QAbstractGraphicsShapeItem* i = new ImageItem(logoimg[qrand()%4]);
canvas.addItem(i);
i->setPos(qrand()%int(canvas.width()-logoimg->width()),
qrand()%int(canvas.height()-logoimg->width()));
i->setZValue(qrand()%256+256);
}
void Main::addButterfly()
{
if ( butterfly_fn.isEmpty() )
return;
if ( !butterflyimg ) {
butterflyimg = new QImage[4];
butterflyimg[0].load( butterfly_fn );
butterflyimg[1] = butterflyimg[0].smoothScale( int(butterflyimg[0].width()*0.75),
int(butterflyimg[0].height()*0.75) );
butterflyimg[2] = butterflyimg[0].smoothScale( int(butterflyimg[0].width()*0.5),
int(butterflyimg[0].height()*0.5) );
butterflyimg[3] = butterflyimg[0].smoothScale( int(butterflyimg[0].width()*0.25),
int(butterflyimg[0].height()*0.25) );
}
QAbstractGraphicsShapeItem* i = new ImageItem(butterflyimg[qrand()%4]);
canvas.addItem(i);
i->setPos(qrand()%int(canvas.width()-butterflyimg->width()),
qrand()%int(canvas.height()-butterflyimg->height()));
i->setZValue(qrand()%256+250);
}
