#[repr(transparent)]pub struct RGBA { /* private fields */ }
Expand description
A RGBA
is used to represent a color, in a way that is compatible
with cairo’s notion of color.
RGBA
is a convenient way to pass colors around. It’s based on
cairo’s way to deal with colors and mirrors its behavior. All values
are in the range from 0.0 to 1.0 inclusive. So the color
(0.0, 0.0, 0.0, 0.0) represents transparent black and
(1.0, 1.0, 1.0, 1.0) is opaque white. Other values will
be clamped to this range when drawing.
Implementations§
source§impl RGBA
impl RGBA
pub fn as_ptr(&self) -> *mut GdkRGBA
sourcepub unsafe fn from_glib_ptr_borrow<'a>(ptr: *const GdkRGBA) -> &'a Self
pub unsafe fn from_glib_ptr_borrow<'a>(ptr: *const GdkRGBA) -> &'a Self
Borrows the underlying C value.
sourcepub unsafe fn from_glib_ptr_borrow_mut<'a>(ptr: *mut GdkRGBA) -> &'a mut Self
pub unsafe fn from_glib_ptr_borrow_mut<'a>(ptr: *mut GdkRGBA) -> &'a mut Self
Borrows the underlying C value mutably.
source§impl RGBA
impl RGBA
sourcepub fn to_str(&self) -> GString
pub fn to_str(&self) -> GString
Returns a textual specification of @self in the form
rgb(r,g,b)
or rgba(r,g,b,a)
, where “r”, “g”, “b” and
“a” represent the red, green, blue and alpha values
respectively. “r”, “g”, and “b” are represented as integers
in the range 0 to 255, and “a” is represented as a floating
point value in the range 0 to 1.
These string forms are string forms that are supported by
the CSS3 colors module, and can be parsed by parse()
.
Note that this string representation may lose some precision, since “r”, “g” and “b” are represented as 8-bit integers. If this is a concern, you should use a different representation.
Returns
A newly allocated text string
source§impl RGBA
impl RGBA
pub fn new(red: f32, green: f32, blue: f32, alpha: f32) -> Self
sourcepub fn builder() -> RGBABuilder
pub fn builder() -> RGBABuilder
Creates a new builder-pattern struct instance to construct RGBA
objects.
This method returns an instance of RGBABuilder
which can be used to create RGBA
objects.
pub fn red(&self) -> f32
pub fn set_red(&mut self, red: f32)
pub fn green(&self) -> f32
pub fn set_green(&mut self, green: f32)
pub fn blue(&self) -> f32
pub fn set_blue(&mut self, blue: f32)
pub fn alpha(&self) -> f32
pub fn set_alpha(&mut self, alpha: f32)
sourcepub fn parse(s: impl IntoGStr) -> Result<RGBA, BoolError>
pub fn parse(s: impl IntoGStr) -> Result<RGBA, BoolError>
Parses a textual representation of a color.
The string can be either one of:
- A standard name (Taken from the Css specification).
- A hexadecimal value in the form “#rgb”, “#rrggbb”, “#rrrgggbbb” or ”#rrrrggggbbbb”
- A hexadecimal value in the form “#rgba”, “#rrggbbaa”, or ”#rrrrggggbbbbaaaa”
- A RGB color in the form “rgb(r,g,b)” (In this case the color will have full opacity)
- A RGBA color in the form “rgba(r,g,b,a)”
Where “r”, “g”, “b” and “a” are respectively the red, green, blue and alpha color values. In the last two cases, “r”, “g”, and “b” are either integers in the range 0 to 255 or percentage values in the range 0% to 100%, and a is a floating point value in the range 0 to 1.
spec
the string specifying the color
Returns
true
if the parsing succeeded
pub const BLACK: RGBA = _
pub const BLUE: RGBA = _
pub const GREEN: RGBA = _
pub const RED: RGBA = _
pub const WHITE: RGBA = _
pub const TRANSPARENT: RGBA = _
Trait Implementations§
source§impl HasParamSpec for RGBA
impl HasParamSpec for RGBA
source§impl PartialEq<RGBA> for RGBA
impl PartialEq<RGBA> for RGBA
source§impl StaticType for RGBA
impl StaticType for RGBA
source§fn static_type() -> Type
fn static_type() -> Type
Self
.impl Copy for RGBA
impl Eq for RGBA
Auto Trait Implementations§
impl RefUnwindSafe for RGBA
impl Send for RGBA
impl Sync for RGBA
impl Unpin for RGBA
impl UnwindSafe for RGBA
Blanket Implementations§
source§impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GList> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GList> for Twhere T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
source§impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GPtrArray> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GPtrArray> for Twhere T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
source§impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GSList> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GSList> for Twhere T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
source§impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GList> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GList> for Twhere T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
source§impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GPtrArray> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GPtrArray> for Twhere T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
source§impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GSList> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GSList> for Twhere T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
source§impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GList> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GList> for Twhere T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
source§impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GPtrArray> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GPtrArray> for Twhere T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
source§impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GSList> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GSList> for Twhere T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
source§impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GList> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GList> for Twhere T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
source§impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GPtrArray> for Twhere
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impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GPtrArray> for Twhere T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
source§impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GSList> for Twhere
T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GSList> for Twhere T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,
source§impl<T> IntoClosureReturnValue for Twhere
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fn into_closure_return_value(self) -> Option<Value>
source§impl<T> PropertyGet for Twhere
T: HasParamSpec,
impl<T> PropertyGet for Twhere T: HasParamSpec,
source§impl<T> StaticTypeExt for Twhere
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impl<T> StaticTypeExt for Twhere T: StaticType,
source§fn ensure_type()
fn ensure_type()
source§impl<T> ToSendValue for Twhere
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source§fn to_send_value(&self) -> SendValue
fn to_send_value(&self) -> SendValue
SendValue
clone of self
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