diff options
Diffstat (limited to 'examples/qtconcurrent/map/main.cpp')
-rw-r--r-- | examples/qtconcurrent/map/main.cpp | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/examples/qtconcurrent/map/main.cpp b/examples/qtconcurrent/map/main.cpp index d01b91fe55..8fc670b64b 100644 --- a/examples/qtconcurrent/map/main.cpp +++ b/examples/qtconcurrent/map/main.cpp @@ -55,11 +55,7 @@ #include <QGuiApplication> #include <qtconcurrentmap.h> -QImage scale(const QImage &image) -{ - qDebug() << "Scaling image in thread" << QThread::currentThread(); - return image.scaled(QSize(100, 100), Qt::IgnoreAspectRatio, Qt::SmoothTransformation); -} +#include <functional> int main(int argc, char *argv[]) { @@ -72,6 +68,12 @@ int main(int argc, char *argv[]) for (int i = 0; i < imageCount; ++i) images.append(QImage(1600, 1200, QImage::Format_ARGB32_Premultiplied)); + std::function<QImage(const QImage&)> scale = [](const QImage &image) -> QImage + { + qDebug() << "Scaling image in thread" << QThread::currentThread(); + return image.scaled(QSize(100, 100), Qt::IgnoreAspectRatio, Qt::SmoothTransformation); + }; + // Use QtConcurrentBlocking::mapped to apply the scale function to all the // images in the list. QList<QImage> thumbnails = QtConcurrent::blockingMapped(images, scale); |