Struct cairo::XCBSurface

source ·
#[repr(transparent)]
pub struct XCBSurface(_);

Implementations§

Methods from Deref<Target = Surface>§

Attach user data to self for the given key.

Return the user data previously attached to self with the given key, if any.

Return the user data previously attached to self with the given key, if any, without incrementing the reference count.

The pointer is valid when it is returned from this method, until the cairo object that self represents is destroyed or remove_user_data or set_user_data is called with the same key.

Unattached from self the user data associated with key, if any. If there is no other Rc strong reference, the data is destroyed.

This function writes the surface as a PNG image to the given stream.

If the underlying surface does not support being written as a PNG, this will return Error::SurfaceTypeMismatch

Finish the surface, then remove and return the output stream if any.

This calls Surface::finish, to make sure pending writes are done.

This is relevant for surfaces created for example with crate::PdfSurface::for_stream.

Use Box::downcast to recover the concrete stream type.

Panics

This method panics if:

  • This method was already called for this surface, or
  • This surface was not created with an output stream in the first place, or
  • A previous write to this surface panicked, or
  • A previous write happened while another write was ongoing, or
  • A write is ongoing now.

The latter two cases can only occur with a pathological output stream type that accesses the same surface again from Write::write_all.

Trait Implementations§

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The resulting type after dereferencing.
Dereferences the value.
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Value type checker.
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Value type checker.
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Returns the type identifier of Self.
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Convert a value to a Value.
Returns the type identifer of self. Read more
Convert an Option to a Value.
The type returned in the event of a conversion error.
Performs the conversion.
Type to get the Type from. Read more

Auto Trait Implementations§

Blanket Implementations§

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The type returned in the event of a conversion error.
Performs the conversion.
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Performs the conversion.