DiagramCanvas class

The main canvas area of the diagram, handling zooming, panning, and rendering layers.

Inheritance

Constructors

DiagramCanvas({Key? key, required TransformationController transformController, required DiagramTheme diagramTheme, required ElectricalNode? root, required Map<String, Offset> nodePositions, required Map<String, Rect> panelRects, required Map<String, String> panelNames, required List<DiagramNode> visualNodes, required dynamic onBackgroundTap(TapDownDetails), required dynamic onNodeSelected(DiagramNode), required dynamic onNodeDroppedOnPanel(DragTargetDetails<NodeType>, String), DiagramNode? selectedNode, String? draggingNodeId, List<double> verticalGuides = const [], List<double> horizontalGuides = const []})
const

Properties

diagramTheme → DiagramTheme
final
draggingNodeId → String?
final
hashCode → int
The hash code for this object.
no setterinherited
horizontalGuides → List<double>
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
nodePositions → Map<String, Offset>
final
onBackgroundTap → dynamic Function(TapDownDetails)
final
onNodeDroppedOnPanel → dynamic Function(DragTargetDetails<NodeType>, String)
final
onNodeSelected → dynamic Function(DiagramNode)
final
panelNames → Map<String, String>
final
panelRects → Map<String, Rect>
final
root → ElectricalNode?
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
selectedNode → DiagramNode?
final
transformController → TransformationController
final
verticalGuides → List<double>
final
visualNodes → List<DiagramNode>
final

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