在非GUI线程中获取文件图标（QFileIconProvider :: icon）

Question

I'm trying to get file icons from non-gui thread to avoid gui freeze. I'm getting the warning:

QPixmap: It is not safe to use pixmaps outside the GUI thread

Is there a way to solve my problem? Maybe there is another simple way to get file icons? My target system is Ubuntu, I don't need to support other systems.

Answer 1

Well you can use QImage instead to load file-icons which can be used outside GUI thread . And then you can use any function provided by QImage to convert it into QPixmap . For example following static function:

QPixmap QImage::fromImage (const QImage & image, Qt::ImageConversionFlags flags)