Trait QVariantConvertible 

pub trait QVariantConvertible: Sized {
    // Required methods
    fn to_qvariant(&self) -> QVariant;
    fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>;
}

A type that cross to and from QML by value.

This is the bound for values stored in a model role (see QModelItem) and for value-typed properties and method arguments. Implemented for:

• Primitive numeric types and bool
• String
• Vec<T> where T is one of the above

QObject handles (Rc<RefCell<T>>) are deliberately not QVariantConvertible as they cross as a pointer.

Required Methods

fn to_qvariant(&self) -> QVariant

Convert to QVariant. Intended for use with references only.

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

Fallible conversion from QVariant to a value type.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl QVariantConvertible for Value

Available on crate feature serde_json only.

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for bool

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for f32

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for f64

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for i8

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for i16

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for i32

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for i64

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for isize

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for u8

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for u16

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for u32

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for u64

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for ()

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for usize

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for String

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for Vec<Value>

Available on crate feature serde_json only.

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for Vec<bool>

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for Vec<f32>

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for Vec<f64>

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for Vec<i8>

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for Vec<i16>

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for Vec<i32>

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for Vec<i64>

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for Vec<isize>

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for Vec<u8>

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for Vec<u16>

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for Vec<u32>

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for Vec<u64>

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for Vec<usize>

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

impl QVariantConvertible for Vec<String>

fn to_qvariant(&self) -> QVariant

fn try_from_qvariant(value: &QVariant) -> Result<Self, ()>

Implementors