Qt编程技巧 Qt图片翻转

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/**
水平翻转
*/
void ImageViewer::horFilp()
{
image = image.mirrored(true, false);
imageLabel->setPixmap(QPixmap::fromImage(image));
}
/**
垂直翻转
*/
void ImageViewer::verFilp()
{
image = image.mirrored(false, true);
imageLabel->setPixmap(QPixmap::fromImage(image));
}
/**
顺时针旋转
*/
void ImageViewer::clockwise()
{
QMatrix matrix;
matrix.rotate(90.0);
image = image.transformed(matrix,Qt::FastTransformation);
imageLabel->setPixmap(QPixmap::fromImage(image));
}
/**
逆时针旋转
*/
void ImageViewer::anticlockwise()
{
QMatrix matrix;
matrix.rotate(-90.0);
image = image.transformed(matrix,Qt::FastTransformation);
imageLabel->setPixmap(QPixmap::fromImage(image));
}