Struct cairo::Surface [−][src]
pub struct Surface(_);
Implementations
pub fn set_mime_data<T: AsRef<[u8]> + 'static>(
&self,
mime_type: &str,
slice: T
) -> Result<(), Error>
pub fn create_similar_image(
&self,
format: Format,
width: i32,
height: i32
) -> Result<Surface, Error>
pub fn map_to_image(
&self,
extents: Option<RectangleInt>
) -> Result<MappedImageSurface, Error>
pub fn set_user_data<T: 'static>(
&self,
key: &'static UserDataKey<T>,
value: Rc<T>
) -> Result<(), Error>
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
.
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.
Unattach from self
the user data associated with key
, if any.
If there is no other Rc
strong reference, the data is destroyed.
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 [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
Safety Read more
Safety Read more
Safety Read more
type Checker = GenericValueTypeOrNoneChecker<Self>
type Checker = GenericValueTypeOrNoneChecker<Self>
Value type checker.
Get the contained value from a Value
. Read more
Returns the type identifier of Self
.
Convert an Option
to a Value
.
Auto Trait Implementations
impl RefUnwindSafe for Surface
impl UnwindSafe for Surface
Blanket Implementations
Mutably borrows from an owned value. Read more
Returns a SendValue
clone of self
.
impl<'a, T, C> FromValueOptional<'a> for T where
C: ValueTypeChecker<Error = ValueTypeMismatchOrNoneError>,
T: FromValue<'a, Checker = C>,