DrawCanvas class - draw_canvas library

Constructors

DrawCanvas({required PaintedModel item, required double scale, required bool enabledHitDetection, required bool freeStyleHighPerformanceScaling, required bool freeStyleHighPerformanceMoving}): Constructor for the canvas.

Properties

enabledHitDetection ↔ bool: Enables or disables hit detection. When true, allows detecting user interactions with the interface.
getter/setter pair
freeStyleHighPerformanceMoving ↔ bool: Controls high-performance moving for free-style drawing. When true, enables optimized moving for improved performance.
getter/setter pair
freeStyleHighPerformanceScaling ↔ bool: Controls high-performance scaling for free-style drawing. When true, enables optimized scaling for improved performance.
getter/setter pair
hashCode → int: The hash code for this object.
no setterinherited
item → PaintedModel: The model containing information about the painting.
final
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
scale → double: The scaling factor applied to the canvas.
final
semanticsBuilder → SemanticsBuilderCallback?: Returns a function that builds semantic information for the picture drawn by this painter.
no setterinherited

Methods

addListener(VoidCallback listener) → void: Register a closure to be notified when it is time to repaint.
inherited
hitTest(Offset position) → bool: Called whenever a hit test is being performed on an object that is using this custom paint delegate.
override
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 DrawCanvas 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
shouldRepaint(covariant DrawCanvas 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

Operators

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