ExtendedCustomPaint class
ExtendedCustomPaint is a stateful widget that allows you to use custom painting within a widget. It extends the functionality of CustomPaint by providing methods to update the painting properties without rebuilding the child widget.
This is useful for scenarios where you need to dynamically update
painting properties such as the painter, foregroundPainter,
isComplex, and willChange flags without affecting the child widget.
The initIsComplex and initWillChange parameters set the initial values for the respective properties. The initForegroundPainter and initPainter parameters set the initial custom painters. The child parameter is the widget to be painted on.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- ExtendedCustomPaint
Constructors
- ExtendedCustomPaint({Key? key, bool initIsComplex = false, bool initWillChange = false, CustomPainter? initForegroundPainter, CustomPainter? initPainter, required Widget child})
-
const
Properties
- child → Widget
-
The widget to be painted on.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- initForegroundPainter → CustomPainter?
-
Initial custom painter for the foreground.
final
- initIsComplex → bool
-
Initial value for whether the painting is complex.
final
- initPainter → CustomPainter?
-
Initial custom painter.
final
- initWillChange → bool
-
Initial value for whether the painting will change.
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< ExtendedCustomPaint> -
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