CirclePainter<R extends Object> class
The CustomPainter used to draw CircleMarkers for the CircleLayer.
- Inheritance
-
- Object
- Listenable
- CustomPainter
- CirclePainter
Constructors
-
CirclePainter.new({required List<
CircleMarker< circles, required MapCamera camera, required LayerHitNotifier<R> >R> ? hitNotifier}) - Create a CirclePainter instance by providing the required reference objects.
Properties
- camera → MapCamera
-
final
-
circles
→ List<
CircleMarker< R> > -
Reference to the list of CircleMarkers of the CircleLayer.
final
-
elements
→ Iterable<
CircleMarker< R> > -
Elements that should be possibly be hit tested by elementHitTest
(hitTest)
no setter
- hashCode → int
-
The hash code for this object.
no setterinherited
-
hitNotifier
→ LayerHitNotifier<
R> ? -
final
- origin → Offset
-
Returns the origin of the camera.
no setterinherited
- 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
- viewportRect → Rect
-
The rectangle of the canvas on its last paint
no setterinherited
- worldWidth → double
-
Returns the world size in pixels.
no setterinherited
Methods
-
addListener(
VoidCallback listener) → void -
Register a closure to be notified when it is time to repaint.
inherited
-
areOffsetsVisible(
Iterable< Offset> offsets) → bool -
Determine whether the specified offsets are visible within the viewport
inherited
-
elementHitTest(
CircleMarker< R> element, {required Offset point, required LatLng coordinate}) → bool - Method invoked by hitTest for every element (each of elements in reverse order) that requires testing
-
hitTest(
Offset position) → bool? -
Called whenever a hit test is being performed on an object that is using
this custom paint delegate.
inherited
-
metersToScreenPixels(
LatLng point, double meters) → double -
Converts a distance in meters to the equivalent distance in screen pixels,
at the geographic coordinates specified.
inherited
-
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 CirclePainter< Object> 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
-
workAcrossWorlds(
WorldWorkControl work(double shift)) → bool -
Perform the callback in all world copies (until stopped)
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited