NiceDiagram class
Interactive node-edge diagram with drag, zoom, and grid.
NiceDiagram(
nodes: [NiceDiagramNode(id: 'a', x: 50, y: 50, text: 'Start')],
edges: [NiceDiagramEdge(id: 'e1', from: 'a', to: 'b')],
onNodeMove: (id, x, y) => updateNode(id, x, y),
)
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- NiceDiagram
- Available extensions
Constructors
-
NiceDiagram({Key? key, List<
NiceDiagramNode> nodes = const [], List<NiceDiagramEdge> edges = const [], void onNodeMove(String id, double x, double y)?, void onNodeClick(String id)?, void onEdgeClick(String id)?, bool readOnly = false, double gridSize = 20, bool showGrid = true, bool snapToGrid = true, double? width, double? height}) -
const
Properties
-
edges
→ List<
NiceDiagramEdge> -
final
- gridSize → double
-
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- height → double?
-
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
-
nodes
→ List<
NiceDiagramNode> -
final
- onEdgeClick → void Function(String id)?
-
final
- onNodeClick → void Function(String id)?
-
final
- onNodeMove → void Function(String id, double x, double y)?
-
final
- readOnly → bool
-
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- showGrid → bool
-
final
- snapToGrid → bool
-
final
- width → double?
-
final
Methods
-
asFocusable(
{FocusNode? focusNode, bool autofocus = false}) → Widget -
Available on Widget, provided by the NiceAccessibilityExtension extension
Mark this widget as focusable. -
asSemanticButton(
{String? label, VoidCallback? onTap}) → Widget -
Available on Widget, provided by the NiceAccessibilityExtension extension
Mark this widget as a button for screen readers. -
asSemanticHeading(
String label) → Widget -
Available on Widget, provided by the NiceAccessibilityExtension extension
Mark this widget as a heading for screen readers. -
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< NiceDiagram> -
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
-
excludeFromSemantics(
) → Widget -
Available on Widget, provided by the NiceAccessibilityExtension extension
Exclude this widget from the semantic tree. -
mergeSemantics(
) → Widget -
Available on Widget, provided by the NiceAccessibilityExtension extension
Merge semantics of child widgets. -
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
-
withSemanticLabel(
String label) → Widget -
Available on Widget, provided by the NiceAccessibilityExtension extension
Add a semantic label to this widget.
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited