自学qt之QImage

QImage 纯软件绘图

QImage image(size(),QImage::Format ARGB32 Premultiplied);QPainter imagepainter(&image);enum DrawTap{Butterfly,Dog};DrawType drawType;QImage butterflyImage;butterflyImage.load(":/images.bf.png");void Widget::paintEvent(QPaintEvent *){    QPainter widgetPainter(this);    widgetPainter.drawImage(0,0,bufferflyImage);}

复合模式 两张图片混合
源 目标
QImage sourceImage
QImage destinationImage
QImage resultImage

static const QSize resultSize(200,200);
resultImage=QImage(resultSize,QImage::Format_ARGB32_Premultiplied);
loadImage(“:/images/checker.png”,destinationImage,)
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