ExtendedInteractiveViewer class

A widget that provides interactive viewing capabilities with zoom and pan functionality.

The ExtendedInteractiveViewer wraps a given child widget and allows users to interact with it through zooming and panning. The interactivity can be enabled or disabled, and the zoom levels can be controlled with minScale and maxScale.

Example usage:

ExtendedInteractiveViewer(
  editorIsZoomable: true,
  enableInteraction: true,
  minScale: 0.5,
  maxScale: 3.0,
  child: YourWidget(),
);

The ExtendedInteractiveViewer requires the following parameters:

  • child: The widget to be displayed and interacted with.
  • editorIsZoomable: A boolean indicating whether zoom functionality is enabled.
  • minScale: The minimum scale factor for zooming.
  • maxScale: The maximum scale factor for zooming.

Optionally, you can control the interactivity using enableInteraction.

Inheritance

Constructors

ExtendedInteractiveViewer({Key? key, required Widget child, bool enableInteraction = true, required bool editorIsZoomable, required double minScale, required double maxScale, required GestureScaleStartCallback? onInteractionStart, required GestureScaleUpdateCallback? onInteractionUpdate, required GestureScaleEndCallback? onInteractionEnd})
Creates an ExtendedInteractiveViewer with the given parameters.
const

Properties

child → Widget
The child widget to be displayed and interacted with.
final
editorIsZoomable → bool
Indicates whether the editor supports zoom functionality.
final
enableInteraction → bool
Indicates whether user interactions such as panning and zooming are enabled.
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
maxScale → double
The maximum scale factor for zooming.
final
minScale → double
The minimum scale factor for zooming.
final
onInteractionEnd → GestureScaleEndCallback?
Called when the user ends a pan or scale gesture on the widget.
final
onInteractionStart → GestureScaleStartCallback?
Called when the user begins a pan or scale gesture on the widget.
final
onInteractionUpdate → GestureScaleUpdateCallback?
Called when the user updates a pan or scale gesture on the widget.
final
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<ExtendedInteractiveViewer>
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