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fix: use format() to check if we support such format

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This commit is contained in:
Gary Wang 2020-03-03 09:53:23 +08:00
parent 5495fa06d3
commit eb648e3112
1 changed files with 4 additions and 2 deletions
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6
graphicsview.cpp
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@ -39,8 +39,10 @@ void GraphicsView::showFileFromUrl(const QUrl &url, bool doRequestGallery)
QImageReader imageReader(filePath); QImageReader imageReader(filePath);
imageReader.setAutoTransform(true); imageReader.setAutoTransform(true);
imageReader.setDecideFormatFromContent(true); imageReader.setDecideFormatFromContent(true);
QImage::Format imageFormat = imageReader.imageFormat(); // Since if the image format / plugin does not support this feature, imageFormat() will returns an invalid format.
if (imageFormat == QImage::Format_Invalid) { // So we cannot use imageFormat() and check if it returns QImage::Format_Invalid to detect if we support the file.
// QImage::Format imageFormat = imageReader.imageFormat();
if (imageReader.format().isEmpty()) {
showText(tr("File is not a valid image")); showText(tr("File is not a valid image"));
} else { } else {
showImage(QPixmap::fromImageReader(&imageReader)); showImage(QPixmap::fromImageReader(&imageReader));