Struct cairo::SvgSurface

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pub struct SvgSurface(/* private fields */);

Available on crate feature svg only.

Implementations§

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impl SvgSurface

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pub fn new<P: AsRef<Path>>( width: f64, height: f64, path: Option, ) -> Result<SvgSurface, Error>

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pub fn for_stream<W: Write + 'static>( width: f64, height: f64, stream: W, ) -> Result<Self, Error>

Takes full ownership of the output stream, which is not allowed to borrow any lifetime shorter than 'static.

Because the underlying cairo_surface_t is reference-counted, a lifetime parameter in a Rust wrapper type would not be enough to track how long it can keep writing to the stream.

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pub unsafe fn for_raw_stream<W: Write + 'static>( width: f64, height: f64, stream: *mut W, ) -> Result<Self, Error>

Allows writing to a borrowed stream. The lifetime of the borrow is not tracked.

§Safety

The value that stream points to must live at least until the underlying cairo_surface_t (which maybe be longer then the Rust PdfSurface wrapper, because of reference-counting), or until the output stream is removed from the surface with Surface::finish_output_stream.

Since the former is hard to track for sure, the latter is strongly recommended. The concrete type behind the Box<dyn Any> value returned by finish_output_stream is private, so you won’t be able to downcast it. But removing it anyway ensures that later writes do not go through a dangling pointer.

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pub fn versions() -> impl Iterator<Item = SvgVersion>

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pub fn restrict(&self, version: SvgVersion)

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pub fn set_document_unit(&mut self, unit: SvgUnit)

Available on crate feature v1_16 only.

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pub fn document_unit(&self) -> SvgUnit

Available on crate feature v1_16 only.

Methods from Deref<Target = Surface>§

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pub fn to_raw_none(&self) -> *mut cairo_surface_t

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pub fn create_similar( &self, content: Content, width: i32, height: i32, ) -> Result<Surface, Error>

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pub fn set_mime_data<T: AsRef<[u8]> + 'static>( &self, mime_type: &str, slice: T, ) -> Result<(), Error>

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pub fn supports_mime_type(&self, mime_type: &str) -> bool

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pub fn device(&self) -> Option<Device>

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pub fn content(&self) -> Content

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pub fn set_device_offset(&self, x_offset: f64, y_offset: f64)

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pub fn device_offset(&self) -> (f64, f64)

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pub fn set_device_scale(&self, x_scale: f64, y_scale: f64)

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pub fn device_scale(&self) -> (f64, f64)

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pub fn set_fallback_resolution( &self, x_pixels_per_inch: f64, y_pixels_per_inch: f64, )

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pub fn fallback_resolution(&self) -> (f64, f64)

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pub fn create_similar_image( &self, format: Format, width: i32, height: i32, ) -> Result<ImageSurface, Error>

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pub fn map_to_image( &self, extents: Option<RectangleInt>, ) -> Result<MappedImageSurface, Error>

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pub fn mark_dirty(&self)

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pub fn mark_dirty_rectangle(&self, x: i32, y: i32, width: i32, height: i32)

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pub fn status(&self) -> Result<(), Error>

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pub fn set_user_data<T: 'static>( &self, key: &'static UserDataKey<T>, value: Rc<T>, ) -> Result<(), Error>

Attach user data to self for the given key.

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pub fn user_data<T: 'static>( &self, key: &'static UserDataKey<T>, ) -> Option<Rc<T>>

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

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pub fn user_data_ptr<T: 'static>( &self, key: &'static UserDataKey<T>, ) -> Option<NonNull<T>>

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.

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