This code generator gets you started quickly to use Rust code from Qt and QML. In other words, it helps to create a Qt based GUI on top of Rust code.
Qt is a mature cross-platform graphical user interface library. Rust is a new programming language with strong compile time checks and a modern syntax.
To combine Qt and Rust, write an interface in a JSON file. From that, the generator creates Qt code and Rust code. The Qt code can be used directly. The Rust code has two files: interface and implementation. The interface can be used directly.
```json
{
"cppFile": "src/person.cpp",
"rust": {
"dir": "rust",
"interfaceModule": "interface",
"implementationModule": "implementation"
},
"objects": {
"Person": {
"type": "Object",
"properties": {
"name": {
"type": "QString",
"write": true
}
}
}
}
}
```
This file describes an binding with one object, `Person`. `Person` has one property: `name`. It is a writable property.
The Rust Qt Binding Generator will create binding source code from this description:
Only `implementation.rs` should be changed. The other files are the binding. `implementation.rs` is initialy created with a simple implementation that is shown here with some comments.
The building block of Qt and QML projects are QObject and the Model View classes. `rust_qt_binding_generator` reads a json file to generate QObject or QAbstractItemModel classes that call into generated Rust files. For each type from the JSON file, a Rust trait is generated that should be implemented.
This way, Rust code can be called from Qt and QML projects.