Draw class

A widget representing a canvas for drawing.

Inheritance

Constructors

Draw({Key? key, DrawController? controller, Color backgroundColor = Colors.white, Color strokeColor = Colors.black, double strokeWidth = 4, bool isErasing = false, ValueChanged<Uint8List>? onConvertImage, HistoryChanged? onHistoryChange})
const

Properties

backgroundColor → Color
Color for background of canvas.
final
controller → DrawController?
A controller to call drawing actions.
final
hashCode → int
The hash code for this object.
no setterinherited
isErasing → bool
Flag for erase mode
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
onConvertImage → ValueChanged<Uint8List>?
Callback called when Canvas is converted to image data. See DrawController to check how to convert.
final
onHistoryChange → HistoryChanged?
Callback called when history is changed. This callback exposes if undo / redo is available.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
strokeColor → Color
Color of strokes as an initial configuration.
final
strokeWidth → double
Width of strokes
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → _DrawState
Creates the mutable state for this widget at a given location in the tree.
override
debugDescribeChildren() → List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
inherited
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String
A string representation of this object.
inherited
toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String
Returns a string representation of this node and its descendants.
inherited
toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String
Returns a one-line detailed description of the object.
inherited
toStringShort() → String
A short, textual description of this widget.
inherited

Operators

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