Widget class abstract

Implementers

• AnnotationAppearance
• Chart
• ChartGrid
• Circle
• CircularProgressIndicator
• Dataset
• GridAxis
• Image
• InkList
• LinearProgressIndicator
• MultiChildWidget
• NewPage
• Partition
• Partitions
• Placeholder
• Polygon
• Rectangle
• RichText
• Shape
• SingleChildWidget
• SpanningWidget
• StatelessWidget
• SvgImage
• Table

Constructors

Widget()

Properties

box ↔ PdfRect?

The bounding box of this widget, calculated at layout time

getter/setter pair

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

debugPaint(Context context) → void

layout(Context context, BoxConstraints constraints, {bool parentUsesSize = false}) → void

First widget pass to calculate the children layout and bounding box

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

paint(Context context) → void

Draw itself and its children, according to the calculated box.offset

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

draw(Widget widget, {PdfPage? page, PdfGraphics? canvas, BoxConstraints? constraints, required PdfPoint offset, Alignment? alignment, Context? context}) → void

Draw a widget to a page canvas.

measure(Widget widget, {PdfPage? page, PdfGraphics? canvas, BoxConstraints? constraints, Context? context}) → PdfPoint

Measure the size of a widget to a page canvas.