Trait qmetaobject::qmetatype::QMetaType

pub trait QMetaType: Clone + Default + 'static {
    const CONVERSION_TO_STRING: Option<fn(_: &Self) -> QString> = None;
    const CONVERSION_FROM_STRING: Option<fn(_: &QString) -> Self> = None;

    // Provided methods
    fn register(name: Option<&CStr>) -> i32 { ... }
    fn id() -> i32 { ... }
    fn to_qvariant(&self) -> QVariant { ... }
    fn from_qvariant(variant: QVariant) -> Option<Self> { ... }
}

Implement this trait for type that should be known to the QMetaObject system

Once implemented for a type, it can be used as a type of a qt_property! or as a parameter of a qt_method!

use qmetaobject::QMetaType;

#[derive(Default, Clone)]
struct MyStruct(u32, String);

impl QMetaType for MyStruct {}

Provided Associated Constants

const CONVERSION_TO_STRING: Option<fn(_: &Self) -> QString> = None

If this is set to a function, it enable the conversion to and from QString

const CONVERSION_FROM_STRING: Option<fn(_: &QString) -> Self> = None

Provided Methods

fn register(name: Option<&CStr>) -> i32

Registers the type.

See the Qt documentation of qRegisterMetaType()

The default implementation should work for most types

fn id() -> i32

fn to_qvariant(&self) -> QVariant

Returns a QVariant containing a copy of this object

fn from_qvariant(variant: QVariant) -> Option<Self>

Attempt to convert from a QVariant to this type.

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl QMetaType for bool

fn register(_name: Option<&CStr>) -> i32

impl QMetaType for f32

fn register(_name: Option<&CStr>) -> i32

impl QMetaType for f64

fn register(_name: Option<&CStr>) -> i32

impl QMetaType for i8

fn register(_name: Option<&CStr>) -> i32

impl QMetaType for i16

fn register(_name: Option<&CStr>) -> i32

impl QMetaType for i32

fn register(_name: Option<&CStr>) -> i32

impl QMetaType for i64

fn register(_name: Option<&CStr>) -> i32

impl QMetaType for isize

fn register(_name: Option<&CStr>) -> i32

impl QMetaType for u8

fn register(_name: Option<&CStr>) -> i32

impl QMetaType for u16

fn register(_name: Option<&CStr>) -> i32

impl QMetaType for u32

fn register(_name: Option<&CStr>) -> i32

impl QMetaType for u64

fn register(_name: Option<&CStr>) -> i32

impl QMetaType for ()

fn register(_name: Option<&CStr>) -> i32

impl QMetaType for usize

fn register(_name: Option<&CStr>) -> i32

impl QMetaType for String

const CONVERSION_TO_STRING: Option<fn(_: &Self) -> QString> = _

const CONVERSION_FROM_STRING: Option<fn(_: &QString) -> Self> = _

Implementors

impl QMetaType for QJSValue

impl QMetaType for QByteArray

impl QMetaType for QColor

impl QMetaType for QDate

impl QMetaType for QDateTime

impl QMetaType for QImage

impl QMetaType for QJsonArray

impl QMetaType for QJsonObject

impl QMetaType for QJsonValue

impl QMetaType for QModelIndex

impl QMetaType for QPixmap

impl QMetaType for QPoint

impl QMetaType for QPointF

impl QMetaType for QRectF

impl QMetaType for QSize

impl QMetaType for QSizeF

impl QMetaType for QString

impl QMetaType for QStringList

impl QMetaType for QTime

impl QMetaType for QUrl

impl QMetaType for QVariant

impl QMetaType for QVariantList

impl QMetaType for QVariantMap

impl<T> QMetaType for T

where T: Clone + Default + 'static + QGadget,

QGadget are automatically QMetaType