RgbColour class

Implemented types

Constructors

RgbColour.new(int? red, int? green, int? blue)
RgbColour.parse(String? hexTriplet)
Parses hex color string
factory
RgbColour.parseHtmlColour(String? colorString)
Parses HTML color string
factory
RgbColour.parseRgbString(String rgbString)
Parse an RGB string, e.g. rgb(0, 0, 0)
factory

Properties

blue ↔ int
getter/setter pair
green ↔ int
getter/setter pair
hashCode → int
The hash code for this object.
no setteroverride
isEmpty → bool
no setter
isNotEmpty → bool
no setter
red ↔ int
getter/setter pair
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

brighten(double factor) → RgbColour
@param factor A factor less than 1.0 will darken the colour.
brightnessDiff(RgbColour prime) → int
colorDiff(RgbColour rgb1) → int
Calculate color difference between two colors. Helper method for goog.color.highContrast() @param {goog.color.Rgb} rgb1 Colour represented by a rgb array. @param {goog.color.Rgb} rgb2 Colour represented by a rgb array. @return {number} Colour difference. @private
copy() → RgbColour
@return {!goog.math.Rect} A new copy of this Rectangle.
diff(RgbColour prime) → int
getColourLuma() → double
Returns the color intensity (luma) for the specified color Value ranges from 0..1
getDisplayName() → String
Gets colour's display name
getHsvValueComponent() → int
Gets the Value (V) component in the HSV color space
highContrast(List<RgbColour> suggestions) → RgbColour
highContrastBW() → RgbColour
marshal(MarshalledObject marshalled) → void
Marshal method must operate by mutating empty object passed.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toCssValue() → String
To css color value.
toHexTriplet() → String
Serializes to hex color
toHtmlHexTriplet() → String
To HTML color.
toRgbaString(double alpha) → String
As rgb with alpha channel
toString() → String
Default format
override
yiqBrightness() → int
Calculate brightness of a color according to YIQ formula (brightness is Y). More info on YIQ here: http://en.wikipedia.org/wiki/YIQ. Helper method for goog.color.highContrast() @param {goog.color.Rgb} rgb Colour represented by a rgb array. @return {number} brightness (Y). @private
yiqBrightnessDiff(RgbColour rgb1) → int
Calculate difference in brightness of two colors. Helper method for goog.color.highContrast() @param {goog.color.Rgb} rgb1 Colour represented by a rgb array. @param {goog.color.Rgb} rgb2 Colour represented by a rgb array. @return {number} Brightness difference. @private

Operators

operator *(num value) → RgbColour
Operator overloading for Dart API.
operator +(RgbColour other) → RgbColour
operator -(RgbColour other) → RgbColour
operator ==(Object other) → bool
The equality operator.
override

Static Properties

BLACK_AND_WHITE → List<RgbColour>
final
BLACK_COLOUR → RgbColour
final
EMPTY_COLOR_CSSVALUE → String
final
EMPTY_COLOUR → RgbColour
Colour which has no effect.
final
EMPTY_COLOUR_DISPLAY_NAME → String
final
WHITE_COLOUR → RgbColour
final

Static Methods

getHueColour(num angle) → RgbColour
Get the pure color from the Hue angle. angle is in radians
unmarshal(MarshalledObject marshalled) → RgbColour
Encoded object parameter is encoded depending on format.