Load images from a directory into QList<QPixmap>

[franad]

Hey everyone,

i need to load some images from a directory into my programm. I'm able to get a QList<QStrings> with the filenames of my Images, but i need them as Pixmaps. Any idea how to solve this?

Thanks a lot!

[raven-worx]

@franad

QList>QPixmap> pixmaps;
for( int i = 0; i < fileNames; ++i )
    pixmaps  << QPixmap(fileNames.at(i));

[franad]

@raven-worx, thanks a lot for your help!
unfortunately it seems like I've got any mistake anyway.

Here's the actual code:

QDir directory("C:/Users/.../references");
QList<QString> examples << "*.png";
QList<QString> exlist = directory.entryList(examples);
for (int z = 0; z < exlist.size(); z++) {
        QList<QPixmap>exampleList << QPixmap(exlist.at(z));
}
ui->exampleLabel->setPixmap(exampleList.at(3));
ui->exampleLabel->show();

Last two lines should show the Image with Index 3 at my label, but it doesn't work

[raven-worx]

@franad
I dont think that QDir::entryList() returns absolute paths but only the names?

[franad]

@raven-worx
when I do something like

examplePixmap.load("references/"+exlist.at(0));

it works. "Works" means that I can show up my examplePixmap in a Label.
But if there is any other posibility to get the absolute paths of my files I would be fine with that.
Unfortunately I'm pretty new to qt...

[Christian Ehrlicher]

You're passing the path to QDir so why don't you use this? QDir also has e.g. QDir::absoulteFilePath() - http://doc.qt.io/qt-5/qdir.html#absoluteFilePath

[franad]

@Christian-Ehrlicher

thank you for your help! Could you please precise your hint a little bit?

[Christian Ehrlicher]

@franad said in Load images from a directory into QList<QPixmap>:

for (const QString &fileName : exlist)
    exampleList.push_back(QPixmap(directory.absoluteFilePath(fileName));

[franad]

@Christian-Ehrlicher

Thanks a lot! Everythings seems fine now. Thank you