FontLoader. How it work?

[lolopolosko]

I have custom font
I load this font in FontLoader (for example in MyForm.qml)
I create new QML document and use my custom font . (MySecondForm.qml)

If I load my font in MyForm.qml his available using in MySecondForm?
FontLoader loaded font in global environment?

[xargs1]

You can use a singleton to make it available globally.

[David.G]

In your cpp file before loading the QML entry file you can just call QFontDatabase and add it. I'm going to assume the font isn't being downloaded from the internet (using a URL in the FontLoader)

#include <QFontDatabase>
....
QFontDatabase fontDB;
fontDb.addApplicationFont("://res/fonts/mycustomfont.otf");

// load QML main file
// now you can just call the font globally on any QML file. 
Text {
font.family: "Source Sans Pro" 
text: "Hello world"
}

That's how I've done it, it's been working pretty well.

[Monomix]

I like the global singleton approach, too. An example would be:

In a directory called "fonts", Fonts.qml:

pragma Singleton

       import QtQuick 2.5

QtObject {

    property FontLoader applicationFont: FontLoader {
        source: "OpenSans-Regular.ttf"
    }

In a qmldir file in the "fonts" folder:

singleton Fonts Fonts.qml

Then, in your QML files you can use it as follows:

import "fonts"

Label {
    ...
    font.family:  Fonts.applicationFont.name;
    ...
}

[seyed]

@David.G thank you. Your suggested solution is great. someone has another trick like solution here .

[GrecKo]

FontLoader just calls QGuiApplication:: addApplicationFont, it's basically the same as doing it in C++.

You can use it in another QML file if you know the family name of the font.