pub struct MappedImageSurface { /* private fields */ }

Methods from Deref<Target = ImageSurface>§

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pub fn with_data<F: FnOnce(&[u8])>(&self, f: F) -> Result<(), BorrowError>

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pub fn format(&self) -> Format

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pub fn height(&self) -> i32

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pub fn stride(&self) -> i32

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pub fn width(&self) -> i32

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 create_for_rectangle(&self, bounds: Rectangle) -> Result<Surface, Error>

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pub fn mime_data(&self, mime_type: &str) -> Option<Vec<u8>>

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pub unsafe fn mime_data_raw(&self, mime_type: &str) -> Option<&[u8]>

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

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

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pub fn flush(&self)

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pub fn finish(&self)

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pub fn type_(&self) -> SurfaceType

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pub fn write_to_png<W: Write>(&self, stream: &mut W) -> Result<(), IoError>

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

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pub fn finish_output_stream(&self) -> Result<Box<dyn Any>, StreamWithError>

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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impl AsRef<ImageSurface> for MappedImageSurface

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fn as_ref(&self) -> &ImageSurface

Converts this type into a shared reference of the (usually inferred) input type.
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impl Debug for MappedImageSurface

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Deref for MappedImageSurface

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type Target = ImageSurface

The resulting type after dereferencing.
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fn deref(&self) -> &ImageSurface

Dereferences the value.
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impl Drop for MappedImageSurface

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fn drop(&mut self)

Executes the destructor for this type. Read more

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.