Struct cairo::Gradient

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pub struct Gradient(_);

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impl Gradient

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pub fn add_color_stop_rgb(&self, offset: f64, red: f64, green: f64, blue: f64)

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pub fn add_color_stop_rgba( &self, offset: f64, red: f64, green: f64, blue: f64, alpha: f64 )

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

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pub fn color_stop_rgba( &self, index: isize ) -> Result<(f64, f64, f64, f64, f64), Error>

Methods from Deref<Target = Pattern>§

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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 to_raw_none(&self) -> *mut cairo_pattern_t

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pub fn type_(&self) -> PatternType

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pub fn reference_count(&self) -> isize

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pub fn set_extend(&self, extend: Extend)

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pub fn extend(&self) -> Extend

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pub fn set_filter(&self, filter: Filter)

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pub fn filter(&self) -> Filter

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pub fn set_matrix(&self, matrix: Matrix)

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pub fn matrix(&self) -> Matrix

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

Trait Implementations§

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impl AsRef<Gradient> for LinearGradient

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fn as_ref(&self) -> &Gradient

Converts this type into a shared reference of the (usually inferred) input type.
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impl AsRef<Gradient> for RadialGradient

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fn as_ref(&self) -> &Gradient

Converts this type into a shared reference of the (usually inferred) input type.
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impl AsRef<Pattern> for Gradient

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fn as_ref(&self) -> &Pattern

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

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fn clone(&self) -> Gradient

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Gradient

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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 Gradient

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type Target = Pattern

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

Dereferences the value.
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impl Display for Gradient

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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 TryFrom<Gradient> for LinearGradient

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type Error = Gradient

The type returned in the event of a conversion error.
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fn try_from(pattern: Gradient) -> Result<Self, Gradient>

Performs the conversion.
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impl TryFrom<Gradient> for RadialGradient

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type Error = Gradient

The type returned in the event of a conversion error.
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fn try_from(pattern: Gradient) -> Result<Self, Gradient>

Performs the conversion.
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impl TryFrom<Pattern> for Gradient

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type Error = Pattern

The type returned in the event of a conversion error.
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fn try_from(pattern: Pattern) -> Result<Self, Pattern>

Performs the conversion.

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> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for Twhere T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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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.