[−][src]Trait gstreamer_gl::prelude::IsClassFor

pub unsafe trait IsClassFor: 'static {
    type Instance: ObjectType;
    fn get_type(&self) -> Type { ... }
    fn upcast_ref<U>(&self) -> &U
    where
        U: IsClassFor,
        Self::Instance: IsA<<U as IsClassFor>::Instance>,
        <U as IsClassFor>::Instance: ObjectType,
    { ... }
    fn upcast_ref_mut<U>(&mut self) -> &mut U
    where
        U: IsClassFor,
        Self::Instance: IsA<<U as IsClassFor>::Instance>,
        <U as IsClassFor>::Instance: ObjectType,
    { ... }
    fn downcast_ref<U>(&self) -> Option<&U>
    where
        U: IsClassFor,
        <U as IsClassFor>::Instance: IsA<Self::Instance>,
        Self::Instance: ObjectType,
    { ... }
    fn downcast_ref_mut<U>(&mut self) -> Option<&mut U>
    where
        U: IsClassFor,
        <U as IsClassFor>::Instance: IsA<Self::Instance>,
        Self::Instance: ObjectType,
    { ... }
    fn from_type(type_: Type) -> Option<ClassRef<Self>> { ... }
}

Trait for mapping a class struct type to its corresponding instance type.

Associated Types

`type Instance: ObjectType`

Corresponding Rust instance type for this class.

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Provided methods

`fn get_type(&self) -> Type`

Get the type id for this class.

`fn upcast_ref<U>(&self) -> &U where U: IsClassFor, Self::Instance: IsA<<U as IsClassFor>::Instance>, <U as IsClassFor>::Instance: ObjectType,`

Casts this class to a reference to a parent type's class.

`fn upcast_ref_mut<U>(&mut self) -> &mut U where U: IsClassFor, Self::Instance: IsA<<U as IsClassFor>::Instance>, <U as IsClassFor>::Instance: ObjectType,`

Casts this class to a mutable reference to a parent type's class.

`fn downcast_ref<U>(&self) -> Option<&U> where U: IsClassFor, <U as IsClassFor>::Instance: IsA<Self::Instance>, Self::Instance: ObjectType,`

Casts this class to a reference to a child type's class or fails if this class is not implementing the child class.

`fn downcast_ref_mut<U>(&mut self) -> Option<&mut U> where U: IsClassFor, <U as IsClassFor>::Instance: IsA<Self::Instance>, Self::Instance: ObjectType,`

Casts this class to a mutable reference to a child type's class or fails if this class is not implementing the child class.

`fn from_type(type_: Type) -> Option<ClassRef<Self>>`

Gets the class struct corresponding to type_.

This will return None if type_ is not a subclass of Self.

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Implementations on Foreign Types

`impl IsClassFor for ObjectClass`[src]

`type Instance = Object`

`impl IsClassFor for InitiallyUnownedClass`[src]

`type Instance = InitiallyUnowned`

`impl IsClassFor for BindingClass`[src]

`type Instance = Binding`

`impl IsClassFor for ElementClass`

`type Instance = Element`

`impl IsClassFor for TypeFindFactoryClass`

`type Instance = TypeFindFactory`

`impl IsClassFor for SystemClockClass`

`type Instance = SystemClock`

`impl IsClassFor for AllocatorClass`

`type Instance = Allocator`

`impl IsClassFor for StreamCollectionClass`

`type Instance = StreamCollection`

`impl IsClassFor for ProxyPadClass`

`type Instance = ProxyPad`

`impl IsClassFor for ObjectClass`

`type Instance = Object`

`impl IsClassFor for DeviceMonitorClass`

`type Instance = DeviceMonitor`

`impl IsClassFor for DeviceClass`

`type Instance = Device`

`impl IsClassFor for DeviceProviderFactoryClass`

`type Instance = DeviceProviderFactory`

`impl IsClassFor for BufferPoolClass`

`type Instance = BufferPool`

`impl IsClassFor for RegistryClass`

`type Instance = Registry`

`impl IsClassFor for PluginClass`

`type Instance = Plugin`

`impl IsClassFor for PipelineClass`

`type Instance = Pipeline`

`impl IsClassFor for BinClass`

`type Instance = Bin`

`impl IsClassFor for StreamClass`

`type Instance = Stream`

`impl IsClassFor for ClockClass`

`type Instance = Clock`

`impl IsClassFor for PadClass`

`type Instance = Pad`

`impl IsClassFor for ElementFactoryClass`

`type Instance = ElementFactory`

`impl IsClassFor for GhostPadClass`

`type Instance = GhostPad`

`impl IsClassFor for PluginFeatureClass`

`type Instance = PluginFeature`

`impl IsClassFor for BusClass`

`type Instance = Bus`

`impl IsClassFor for DeviceProviderClass`

`type Instance = DeviceProvider`

`impl IsClassFor for PadTemplateClass`

`type Instance = PadTemplate`

`impl IsClassFor for VideoEncoderClass`

`type Instance = VideoEncoder`

`impl IsClassFor for VideoBufferPoolClass`

`type Instance = VideoBufferPool`

`impl IsClassFor for VideoDecoderClass`

`type Instance = VideoDecoder`

`impl IsClassFor for VideoFilterClass`

`type Instance = VideoFilter`

`impl IsClassFor for AdapterClass`

`type Instance = Adapter`

`impl IsClassFor for BaseSrcClass`

`type Instance = BaseSrc`

`impl IsClassFor for BaseParseClass`

`type Instance = BaseParse`

`impl IsClassFor for BaseTransformClass`

`type Instance = BaseTransform`

`impl IsClassFor for AggregatorClass`

`type Instance = Aggregator`

`impl IsClassFor for BaseSinkClass`

`type Instance = BaseSink`

`impl IsClassFor for AggregatorPadClass`

`type Instance = AggregatorPad`

`impl IsClassFor for PushSrcClass`

`type Instance = PushSrc`

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Implementors

`impl IsClassFor for GLBaseFilterClass`

`type Instance = GLBaseFilter`

`impl IsClassFor for GLColorConvertClass`

`type Instance = GLColorConvert`

`impl IsClassFor for GLContextClass`

`type Instance = GLContext`

`impl IsClassFor for GLDisplayClass`

`type Instance = GLDisplay`

`impl IsClassFor for GLDisplayEGLClass`

`type Instance = GLDisplayEGL`

`impl IsClassFor for GLDisplayWaylandClass`

`type Instance = GLDisplayWayland`

`impl IsClassFor for GLDisplayX11Class`

`type Instance = GLDisplayX11`

`impl IsClassFor for GLFramebufferClass`

`type Instance = GLFramebuffer`

`impl IsClassFor for GLOverlayCompositorClass`

`type Instance = GLOverlayCompositor`

`impl IsClassFor for GLSLStageClass`

`type Instance = GLSLStage`

`impl IsClassFor for GLShaderClass`

`type Instance = GLShader`

`impl IsClassFor for GLUploadClass`

`type Instance = GLUpload`

`impl IsClassFor for GLViewConvertClass`

`type Instance = GLViewConvert`

`impl IsClassFor for GLWindowClass`

`type Instance = GLWindow`

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