DicomViewer class

A production-ready, interactive widget for high-performance DICOM rendering.

DicomViewer provides a seamless user experience by integrating:

  • GPU-Accelerated Rendering: Uses the DicomShaderPainter for clinical precision.
  • Interactive Gestures: Built-in support for Panning, Zooming, and dragging to adjust Windowing (Contrast/Brightness).
  • State Management: Listens to a DicomController to automatically update itself when metadata or pixel data changes.

Default Interactions:

  • Two-Finger Pinch: Zoom in/out.
  • Single-Finger Drag: Adjust Window Level/Width.
  • Double-Tap: Reset contrast/brightness to DICOM defaults.
Inheritance

Constructors

DicomViewer({required DicomController controller, Key? key, BoxFit fit = BoxFit.contain})
Creates a DicomViewer.
const

Properties

controller DicomController
The state controller that provides metadata and GPU shaders.
final
fit BoxFit
How the image should be inscribed into the allocated space.
final
hashCode int
The hash code for this object.
no setterinherited
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

build(BuildContext context) Widget
Describes the part of the user interface represented by this widget.
override
createElement() StatelessElement
Creates a StatelessElement to manage this widget's location in the tree.
inherited
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