StarfieldPainter class - starfield_painter library

Constructors

StarfieldPainter({required StarfieldController controller, required Color starColor, required bool animated, required bool moved, required void setMovedCallback(bool)}): Creates a StarfieldPainter.

Properties

animated → bool: State whether or not the Star objects will be animated.
final
controller → StarfieldController: The controller providing the star data and transform logic.
final
hashCode → int: The hash code for this object.
no setterinherited
moved → bool: final
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
semanticsBuilder → SemanticsBuilderCallback?: Returns a function that builds semantic information for the picture drawn by this painter.
no setterinherited
setMovedCallback → void Function(bool): The callback Function executed once the starfield has been initially animated.
final
starColor → Color: The color each star will be painted with.
final
starPaint ↔ Paint: The Paint used to draw the stars.
getter/setter pair

Methods

addListener(VoidCallback listener) → void: Register a closure to be notified when it is time to repaint.
inherited
drawLargeSizedStar(Canvas canvas, Star star, Paint paint) → void: Draw a larger Star using a consistent size. Its size will depend on the current animation state. If it is not animated, the Star will be rendered smaller.
drawSmallSizedStar(Canvas canvas, Star star, Paint paint) → void: Draw a smaller Star using a variable size, which will be determined using a random number to achieve a more realistic starfield. Its size will depend on the current animation state. If it is not animated, the Star will be using a fixed size.
drawStars(Canvas canvas) → void: Draws the Star objects on the provided Canvas.
hitTest(Offset position) → bool?: Called whenever a hit test is being performed on an object that is using this custom paint delegate.
inherited
initStarPaint() → void: Initializes the star Paint.
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
paint(Canvas canvas, Size size) → void: Called whenever the object needs to paint. The given Canvas has its coordinate space configured such that the origin is at the top left of the box. The area of the box is the size of the size argument.
override
removeListener(VoidCallback listener) → void: Remove a previously registered closure from the list of closures that the object notifies when it is time to repaint.
inherited
shouldRebuildSemantics(covariant CustomPainter oldDelegate) → bool: Called whenever a new instance of the custom painter delegate class is provided to the RenderCustomPaint object, or any time that a new CustomPaint object is created with a new instance of the custom painter delegate class (which amounts to the same thing, because the latter is implemented in terms of the former).
inherited
shouldRepaint(covariant CustomPainter oldDelegate) → bool: Called whenever a new instance of the custom painter delegate class is provided to the RenderCustomPaint object, or any time that a new CustomPaint object is created with a new instance of the custom painter delegate class (which amounts to the same thing, because the latter is implemented in terms of the former).
override
toString() → String: A string representation of this object.
inherited
transformStars(Size size) → void: Transforms the Star objects by expanding and translating the Star.

Operators

operator ==(Object other) → bool: The equality operator.
inherited