Struct pango::Color

#[repr(transparent)]
pub struct Color { /* private fields */ }

The Color structure is used to represent a color in an uncalibrated RGB color-space.

Implementations

impl Color

pub fn as_ptr(&self) -> *mut PangoColor

pub unsafe fn from_glib_ptr_borrow<'a>(ptr: *const PangoColor) -> &'a Self

Borrows the underlying C value.

pub unsafe fn from_glib_ptr_borrow_mut<'a>(ptr: *mut PangoColor) -> &'a mut Self

Borrows the underlying C value mutably.

impl Color

pub fn to_str(&self) -> GString

Returns a textual specification of @self.

The string is in the hexadecimal form #rrrrggggbbbb, where r, g and b are hex digits representing the red, green, and blue components respectively.

Returns

a newly-allocated text string that must be freed with g_free().

impl Color

pub fn parse(spec: &str) -> Result<Self, BoolError>

Fill in the fields of a color from a string specification.

The string can either one of a large set of standard names. (Taken from the CSS Color specification, or it can be a value in the form #rgb, #rrggbb, #rrrgggbbb or #rrrrggggbbbb, where r, g and b are hex digits of the red, green, and blue components of the color, respectively. (White in the four forms is #fff, #ffffff, #fffffffff and #ffffffffffff.)

spec

a string specifying the new color

Returns

true if parsing of the specifier succeeded, otherwise false

pub fn parse_with_alpha(spec: &str) -> Result<(Self, u16), BoolError>

Available on crate feature v1_46 only.

Fill in the fields of a color from a string specification.

The string can either one of a large set of standard names. (Taken from the CSS Color specification, or it can be a hexadecimal value in the form #rgb, #rrggbb, #rrrgggbbb or #rrrrggggbbbb where r, g and b are hex digits of the red, green, and blue components of the color, respectively. (White in the four forms is #fff, #ffffff, #fffffffff and #ffffffffffff.)

Additionally, parse strings of the form #rgba, #rrggbbaa, #rrrrggggbbbbaaaa, if @alpha is not None, and set @alpha to the value specified by the hex digits for a. If no alpha component is found in @spec, @alpha is set to 0xffff (for a solid color).

spec

a string specifying the new color

Returns

true if parsing of the specifier succeeded, otherwise false

alpha

return location for alpha

pub fn red(&self) -> u16

pub fn green(&self) -> u16

pub fn blue(&self) -> u16

Trait Implementations

impl Clone for Color

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Color

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

Formats the value using the given formatter.

impl Display for Color

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

Formats the value using the given formatter.

impl FromStr for Color

type Err = BoolError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl HasParamSpec for Color

type ParamSpec = ParamSpecBoxed

type SetValue = Color

Preferred value to be used as setter for the associated ParamSpec.

type BuilderFn = fn(_: &str) -> ParamSpecBoxedBuilder<'_, Color>

fn param_spec_builder() -> Self::BuilderFn

impl StaticType for Color

fn static_type() -> Type

Returns the type identifier of Self.

impl Copy for Color