ImageArea class

A widget that displays an image with drag-and-drop support and various states. Uses an ImageController to manage the image data and state.

Inheritance

Constructors

ImageArea.new({required ImageController controller, required double width, required double height, String? onLoadingImage, BoxDecoration? decoration, EdgeInsetsGeometry? margin, EdgeInsetsGeometry? padding, Widget? emptyChild, Widget? onErrorChild, Widget? onDragChild, Widget? onLoadingChild, BoxFit? fit, bool readOnly = false, Key? key})
Creates an ImageArea with specified width and height.
const
ImageArea.expand({required ImageController controller, String? onLoadingImage, BoxDecoration? decoration, EdgeInsetsGeometry? margin, EdgeInsetsGeometry? padding, Widget? emptyChild, Widget? onErrorChild, Widget? onDragChild, Widget? onLoadingChild, BoxFit? fit, bool readOnly = false, Key? key})
Creates an ImageArea that expands to fill available space.
ImageArea.square({required ImageController controller, required double dimension, String? onLoadingImage, BoxDecoration? decoration, EdgeInsetsGeometry? margin, EdgeInsetsGeometry? padding, Widget? emptyChild, Widget? onErrorChild, Widget? onDragChild, Widget? onLoadingChild, BoxFit? fit, bool readOnly = false, Key? key})
Creates a square ImageArea with equal width and height dimension.

Properties

controller → ImageController
The controller managing image state and data.
final
decoration → BoxDecoration?
Decoration for the container.
final
emptyChild → Widget?
Widget to display when no image is loaded.
final
fit → BoxFit?
How to fit the image within the container.
final
hashCode → int
The hash code for this object.
no setterinherited
height → double
Height of the container.
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
margin → EdgeInsetsGeometry?
Margin around the container.
final
onDragChild → Widget?
Widget to display when a drag operation is active.
final
onErrorChild → Widget?
Widget to display when an error occurs.
final
onLoadingChild → Widget?
Widget to display while loading.
final
onLoadingImage → String?
Optional URL or path to an image to load on initialization.
final
padding → EdgeInsetsGeometry?
Padding inside the container.
final
readOnly → bool
If true, disables drag-and-drop and image picking.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
width → double
Width of the container.
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<ImageArea>
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, int wrapWidth = 65}) → 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