RectangularSliderTrackShape class
A Slider track that's a simple rectangle.
It paints a solid colored rectangle, vertically centered in the
parentBox. The track rectangle extends to the bounds of the parentBox,
but is padded by the RoundSliderOverlayShape radius. The height is defined
by the SliderThemeData.trackHeight. The color is determined by the
Slider's enabled state and the track segment's active state which are
defined by:
SliderThemeData.activeTrackColor,
SliderThemeData.inactiveTrackColor,
SliderThemeData.disabledActiveTrackColor,
SliderThemeData.disabledInactiveTrackColor.
The track segment between the start of the slider and the thumb is the active track segment. The track segment between the thumb and the end of the slider is the inactive track segment. In TextDirection.ltr, the start of the slider is on the left, and in TextDirection.rtl, the start of the slider is on the right.
See also:
- Slider, for the component that is meant to display this shape.
- SliderThemeData, where an instance of this class is set to inform the slider of the visual details of the its track.
- SliderTrackShape, which can be used to create custom shapes for the Slider's track.
- RoundedRectSliderTrackShape, for a similar track with rounded edges.
- Inheritance
-
- Object
- SliderTrackShape
- RectangularSliderTrackShape
- Mixed-in types
Constructors
- RectangularSliderTrackShape()
-
Creates a slider track that draws 2 rectangles.
const
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- isRounded → bool
-
Whether the track shape is rounded. This is used to determine the correct
position of the thumb in relation to the track. Defaults to false.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
getPreferredRect(
{required RenderBox parentBox, Offset offset = Offset.zero, required SliderThemeData sliderTheme, bool isEnabled = false, bool isDiscrete = false}) → Rect -
Returns a rect that represents the track bounds that fits within the
Slider.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
paint(
PaintingContext context, Offset offset, {required RenderBox parentBox, required SliderThemeData sliderTheme, required Animation< double> enableAnimation, required TextDirection textDirection, required Offset thumbCenter, Offset? secondaryOffset, bool isDiscrete = false, bool isEnabled = false}) → void -
Paints the track shape based on the state passed to it.
override
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited