Failed to get image from provider

sierdzio

You mean you want to take the jpg from one location and save it in another? Use QFile::copy().

gabor53

@sierdzio
I want to save the actual image to a db.

gabor53

@mrjj,
The goal is to save the actual jpg into Qt Quick Local Storage. To do that I need to create a Blob from the jpg file. I don't think it is possible to do in QML; that's why I use QQuickImageProvider to send the image from QML to C++ and return a pixmap to QML.
If I copy 1.jpg to the qml folder and pass1.jpg to QQuickImageProvider the image is correctly displayed, which means the path I get from fileDialog.fileUrl is incorrect.
How can I fix the path so fileDialog.fileUrl provides the right path to the image?
Thank you.

SGaist

@sierdzio already answered that question.

mrjj

hi
so you get a pixmap back to QML but how do you then convert it to the blob?
As far as i understand, Qt Quick Local Storage is a sqllite database so
you need it as QbyteArray to save it.

gabor53

@mrjj
Is there a way to convert pixmap into blob in QML?

mrjj

@gabor53
Hi
sadly i dont know QML well enough to answer that.
It seems it get converted to ArrayBuffer if used in signals.
from c++ to QML.
but im not sure how you can get the pixmap into that.

SGaist

Did you already check Qt Quick Local Storage QML Types ?

By the way, why do you want to store images there ?

gabor53

@SGaist ,
I checked Local Storage QML Types but it doesn't really talk about images.
I'm creating a small app where I can store an image and a description of the image. I used to do it by storing only the url, but eventually the images got moved and I ended up with a bunch of broken links.

SGaist

In that case, I would rather go with a more classical approach through C++ especially if you want to recover the images.

gabor53

@SGaist
Thank you. I will do it that way.