Color class

RGB Colors: #rgb #rgba #rrggbb #rrggbbaa

Inheritance
Implemented types

Constructors

Color(String rgb, [ num alpha = 1, String originalForm ])
The end goal here, is to parse the arguments into an integer triplet, such as 128, 255, 0 [...]
Color.fromKeyword(String keyword)
factory
Color.fromList(List<num> rgb, [ num alpha = 1, String originalForm ])
rgb is a List 128, 255, 0 [...]

Properties

alpha ↔ num
read / write
b → num
read-only
g → num
read-only
name → String
Node name
final
r → num
read-only
rgb ↔ List<num>
read / write
treeField → Map<String, dynamic>
Fields to show with genTree
read-only, override
type → String
Node generic name == class name
final
value ↔ String
original form (#fea) or named color (blue) to return to CSS Color space (rgb, hsl) from function operations, to preserve in output
read / write, covariant, override
allExtends ↔ List<Extend>
For extends visitor process
read / write, inherited
allowRoot ↔ bool
The Node type could be used in the root ruleset
read / write, inherited
cleanCss ↔ CleanCssContext
Info to optimize the node with cleanCss
read / write, inherited
currentFileInfo ↔ FileInfo
get fileInfo from this node or their parent
read / write, inherited
debugInfo ↔ DebugInfo
Filename and line coordinates for error debug
read / write, inherited
elements ↔ List<Element>
Selector elements
read / write, inherited
evalFirst ↔ bool
DetachedRuleset and MixinDefinition must be evaluated before other nodes in the Ruleset.eval() funciton
read / write, inherited
evaluated ↔ bool
result from bool eval, used in condition
read / write, inherited
hashCode → int
The hash code for this object.
read-only, inherited
id ↔ int
hashCode own or inherited for object comparation
read / write, inherited
index ↔ int
index from this node or their parent, position in the less file
read / write, inherited
isRuleset ↔ bool
True if is a Ruleset or MixinDefinition
read / write, inherited
nodeVisible ↔ bool
Only output css code for nodeVisible = true
read / write, inherited
operands ↔ List<Node>
For operation node
read / write, inherited
originalRuleset ↔ Node
for Rulesets and mixins process
read / write, inherited
parens ↔ bool
The node has been parsed inside parenthesis ()
read / write, inherited
parensInOp ↔ bool
for expression evaluation
read / write, inherited
parent ↔ Node
parent Node, used by index and fileInfo.
read / write, inherited
parsed ↔ bool
Some anonymous nodes are lazy parsed
read / write, inherited
rootNode ↔ bool
read / write, inherited
rules ↔ List<Node>
The ruleset rules
read / write, inherited
runtimeType → Type
A representation of the runtime type of the object.
read-only, inherited
selectors ↔ List<Selector>
The ruleset selectors
read / write, inherited
visibilityBlocks ↔ int
Node visibility control
read / write, inherited

Methods

alphaCheck() → void
Review alpha value and type
alphaToString(num alpha) → String
Format alpha
clamp(num v, num max) → num
Returns num v in the range 0 v max.
compare(Node x) → int
Returns -1, 0 for different, equal
override
eval(Contexts env) → Node
override
genCSS(Contexts context, Output output) → void
override
getColorKey(String value) → String
value == '#rrggbb' returns the color key (color name)
isCompress(Contexts context) → bool
Don't use spaces to css
luma() → double
Calculates the luma (perceptual brightness) of a color object
operate(Contexts context, String op, Color other) → Color
Operations have to be done per-channel, if not, channels will spill onto each other. Once we have our result, in the form of an integer triplet, we create a new Color node to hold the result.
override
toARGB() → String
Returns a String such as #aarrggbb
toCleanCSS(Contexts context) → String
clean-css output
toCSS(Contexts context) → String
Returns this color as string. Transparent, #rrggbb, #rgb.
override
toHex(List<num> v) → String
Returns a String #rrggbb. v is a List = r, g, b or r, g, b, a.
toHSL() → HSLType
Returns this Color as HSLA
toHSV() → HSVType
toRGB() → String
Returns this color as String #rrggbb.
toRGBFunction(Contexts context) → String
=> 'rgba(r, g, b, a)'
toString() → String
Returns a string representation of this object.
tryHex3(String hex) → String
hex == '#rrggbb' => '#rgb' else return unchanged
accept(VisitorBase visitor) → void
inherited
addVisibilityBlock() → void
inherited
blocksVisibility() → bool
Returns true if this node represents root of was imported by reference
inherited
copyVisibilityInfo(VisibilityInfo info) → void
This node get the visibility from info
inherited
ensureInvisibility() → void
Turns off node visibility - if called node will NOT be shown in output regardless of whether it comes from import by reference or not
inherited
ensureVisibility() → void
Turns on node visibility, that is, if called node will be shown in output regardless of whether it comes from import by reference or not
inherited
fileInfo() → FileInfo
returns fileInfo from this node or their parent
inherited
fround(Contexts context, num value, [ int precision ]) → num
Adjust the precision of value according to context.numPrecision. 8 By default. [...]
inherited
genTree(Contexts env, Output output, [ String prefix = '' ]) → void
Writes in output the tree, for debug
inherited
genTreeField(Contexts env, Output output, String fieldName, dynamic fieldValue) → void
Build the subtree for a fieldName, fieldValue
inherited
genTreeTitle(Contexts env, Output output, String prefix, String type, String value) → void
Build the node tree title
inherited
getIndex() → int
returns index from this node or their parent
inherited
isCharset() → bool
Directive overrides it
inherited
isRulesetLike() → bool
inherited
isVisible() → bool
return values: false - the node must not be visible true - the node must be visible null - the node has the same visibility as its parent
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
inherited
removeVisibilityBlock() → void
inherited
setParent(dynamic nodes, Node parent) → void
Update parent property in nodes. [...]
inherited
throwAwayComments() → void
inherited
toTree(LessOptions options) → StringBuffer
debug print the node tree
inherited
visibilityInfo() → VisibilityInfo
inherited

Operators

operator ==(dynamic other) → bool
The equality operator.
inherited

Static Properties

transparentKeyword ↔ String
read / write