InvalidColor class
A color that throws when it is used. The intention is that is will be overridden and definitely not be used
Constructors
- InvalidColor()
-
const
Properties
- alpha → int
-
The alpha channel of this color in an 8 bit value.
no setterinherited
- blue → int
-
The blue channel of this color in an 8 bit value.
no setterinherited
- green → int
-
The green channel of this color in an 8 bit value.
no setterinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
- opacity → double
-
The alpha channel of this color as a double.
no setterinherited
- red → int
-
The red channel of this color in an 8 bit value.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- value → int
-
A 32 bit value representing this color.
no setteroverride
Methods
-
computeLuminance(
) → double -
Returns a brightness value between 0 for darkest and 1 for lightest.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
-
withAlpha(
int a) → Color -
Returns a new color that matches this color with the alpha channel
replaced with
a(which ranges from 0 to 255).inherited -
withBlue(
int b) → Color -
Returns a new color that matches this color with the blue channel replaced
with
b(which ranges from 0 to 255).inherited -
withGreen(
int g) → Color -
Returns a new color that matches this color with the green channel
replaced with
g(which ranges from 0 to 255).inherited -
withOpacity(
double opacity) → Color -
Returns a new color that matches this color with the alpha channel
replaced with the given
opacity(which ranges from 0.0 to 1.0).inherited -
withRed(
int r) → Color -
Returns a new color that matches this color with the red channel replaced
with
r(which ranges from 0 to 255).inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited