particles/qdeclarativesparticlespainter.cpp

#include "qdeclarativesparticlespainter.h"

#include "qdeclarativesparticles.h"

QDeclarativeSParticlesPainter::QDeclarativeSParticlesPainter(QDeclarativeSParticlesPrivate *p, QDeclarativeItem* parent)
    : QDeclarativeItem(parent), d(p)
{
    setFlag(QGraphicsItem::ItemHasNoContents, false);
//        maxX = minX = maxY = minY = 0;
}


void QDeclarativeSParticlesPainter::paint(QPainter *p, const QStyleOptionGraphicsItem *, QWidget *)
{
//    if (d->image.isNull() || d->particles.isEmpty())
//        return;

//    const int myX = x() + parentItem()->x();
//    const int myY = y() + parentItem()->y();

//    QVarLengthArray<QPainter::PixmapFragment, 256> pixmapData;
//    pixmapData.resize(d->particles.count());

//    const QRectF sourceRect = d->image.rect();
//    qreal halfPWidth = sourceRect.width()/2.;
//    qreal halfPHeight = sourceRect.height()/2.;
//    for (int i = 0; i < d->particles.count(); ++i) {
//        const QDeclarativeParticle &particle = d->particles.at(i);
//        pixmapData[i].x = particle.x - myX + halfPWidth;
//        pixmapData[i].y = particle.y - myY + halfPHeight;
//        pixmapData[i].opacity = particle.opacity;

//        //these never change
//        pixmapData[i].rotation = 0;
//        pixmapData[i].scaleX = 1;
//        pixmapData[i].scaleY = 1;
//        pixmapData[i].sourceLeft = sourceRect.left();
//        pixmapData[i].sourceTop = sourceRect.top();
//        pixmapData[i].width = sourceRect.width();
//        pixmapData[i].height = sourceRect.height();
//    }
//    p->drawPixmapFragments(pixmapData.data(), d->particles.count(), d->image);
}

void QDeclarativeSParticlesPainter::updateSize()
{
    if (!d->componentComplete)
        return;

//    const int parentX = parentItem()->x();
//    const int parentY = parentItem()->y();
//    for (int i = 0; i < d->particles.count(); ++i) {
//        const QDeclarativeParticle &particle = d->particles.at(i);
//        if(particle.x > maxX)
//            maxX = particle.x;
//        if(particle.x < minX)
//            minX = particle.x;
//        if(particle.y > maxY)
//            maxY = particle.y;
//        if(particle.y < minY)
//            minY = particle.y;
//    }

//    int myWidth = (int)(maxX-minX+0.5)+d->image.width();
//    int myX = (int)(minX - parentX);
//    int myHeight = (int)(maxY-minY+0.5)+d->image.height();
//    int myY = (int)(minY - parentY);
//    setWidth(myWidth);
//    setHeight(myHeight);
//    setX(myX);
//    setY(myY);
}