Complete API surface of the Beep.Skia.StateMachine assembly: 12 public types with their documented members. Follow the family guide for usage patterns.

Types in this assembly

• ChoiceNode class
• CompositeStateNode class
• FinalStateNode class
• ForkNode class
• HistoryNode class
• InitialStateNode class
• JoinNode class
• StateMachineControl class
• StateMachineIssue class
• StateMachineIssueSeverity enum
• StateMachineValidator class
• StateNode class

ChoiceNode (class)

Choice/Junction pseudostate: evaluates guard conditions and selects one outgoing transition. Rendered as a small diamond shape.

Member	Kind	Description
string Title	Property	Gets or sets the title.
ChoiceNode()	Method	Initializes a new instance of the ChoiceNode class.
override Dictionary<string, object> GetProperties(bool includeCommon = true, bool includeNodeProperties = true)	Method
override void SetPropperties(IDictionary<string, object> properties, bool updateNodeProperties = true, bool applyToPublicSetters = true)	Method	Gets or sets the set propperties.

CompositeStateNode (class)

Composite state: a state that contains nested sub-states (hierarchical state machine). Rendered as a larger rounded rectangle with a dashed border and title area at top. Child components are positioned within the inner content area.

Member	Kind	Description
string Title	Property	Gets or sets the title.
float TitleBarHeight	Property	Gets or sets the title bar height.
int RegionCount	Property	Number of orthogonal regions inside the composite state (1-4). Regions are separated by dashed dividers in the content area.
CompositeStateNode()	Method	Initializes a new instance of the CompositeStateNode class.
SKRect GetContentArea()	Method	Gets the inner content area for child components (below the title bar).
override Dictionary<string, object> GetProperties(bool includeCommon = true, bool includeNodeProperties = true)	Method
override void SetPropperties(IDictionary<string, object> properties, bool updateNodeProperties = true, bool applyToPublicSetters = true)	Method	Gets or sets the set propperties.

FinalStateNode (class)

Final state: double circle (outer ring), one input, no outputs.

Member	Kind	Description
string Title	Property	Gets or sets the title.
FinalStateNode()	Method	Initializes a new instance of the FinalStateNode class.

ForkNode (class)

Fork pseudostate: one input, two or more outputs. Rendered as a thick horizontal bar splitting a single flow into multiple parallel flows.

Member	Kind	Description
string Title	Property	Gets or sets the title.
new int OutPortCount	Property	Gets or sets the out port count.
ForkNode()	Method	Initializes a new instance of the ForkNode class.
override Dictionary<string, object> GetProperties(bool includeCommon = true, bool includeNodeProperties = true)	Method
override void SetPropperties(IDictionary<string, object> properties, bool updateNodeProperties = true, bool applyToPublicSetters = true)	Method	Gets or sets the set propperties.

HistoryNode (class)

History pseudostate: remembers the last active sub-state within a composite state. Shallow (H) remembers only the immediate sub-state. Deep (H*) remembers the full nesting path. Rendered as a circle with 'H' or 'H*' inside.

Member	Kind	Description
string Title	Property	Gets or sets the title.
bool IsDeep	Property	Gets or sets the is deep.
HistoryNode()	Method	Initializes a new instance of the HistoryNode class.
override Dictionary<string, object> GetProperties(bool includeCommon = true, bool includeNodeProperties = true)	Method
override void SetPropperties(IDictionary<string, object> properties, bool updateNodeProperties = true, bool applyToPublicSetters = true)	Method	Gets or sets the set propperties.

InitialStateNode (class)

Initial state: drawn as a filled circle, no inputs, one output.

Member	Kind	Description
string Title	Property	Gets or sets the title.
InitialStateNode()	Method	Initializes a new instance of the InitialStateNode class.

JoinNode (class)

Join pseudostate: two or more inputs, one output. Rendered as a thick horizontal bar merging multiple parallel flows into one.

Member	Kind	Description
string Title	Property	Gets or sets the title.
new int InPortCount	Property	Gets or sets the in port count.
JoinNode()	Method	Initializes a new instance of the JoinNode class.
override Dictionary<string, object> GetProperties(bool includeCommon = true, bool includeNodeProperties = true)	Method
override void SetPropperties(IDictionary<string, object> properties, bool updateNodeProperties = true, bool applyToPublicSetters = true)	Method	Gets or sets the set propperties.

StateMachineControl (class)

Base control for State Machine nodes with Material theming and standardized port management.

Member	Kind	Description
SKColor BackgroundColor	Property	Gets or sets the background color.
SKColor BorderColor	Property	Gets or sets the border color.
float BorderThickness	Property	Gets or sets the border thickness.
int InPortCount	Property	Gets or sets the in port count.
int OutPortCount	Property	Gets or sets the out port count.

StateMachineIssue (class)

A single state-machine validation issue.

Member	Kind	Description
string Message	Property	Gets or sets the message.
StateMachineIssueSeverity Severity	Property	Gets or sets the severity.
SkiaComponent? Component	Property	Gets or sets the component.
IConnectionLine? Line	Property	Gets or sets the line.
string? FixSuggestion	Property	Gets or sets the fix suggestion.
override string ToString()	Method	Gets or sets the to string.

StateMachineIssueSeverity (enum)

Severity of a state-machine validation issue.

StateMachineValidator (class)

Validates state-machine diagrams: initial/final states, reachability, and guards/triggers on transitions (read from ConnectionLine.GuardCondition/TriggerEvent, falling back to Label1/Label2 for older diagrams).

Member	Kind	Description
List<StateMachineIssue> Issues	Property	Gets or sets the issues.
bool Validate(IReadOnlyList<SkiaComponent> components, IReadOnlyList<IConnectionLine> lines)	Method	Runs all checks. Returns true when no errors were found (warnings are allowed).
static string? GetGuard(IConnectionLine line)	Method	Gets the guard condition for a transition, falling back to Label1 for legacy diagrams.
static string? GetTrigger(IConnectionLine line)	Method	Gets the trigger event for a transition, falling back to Label2 for legacy diagrams.
static bool SetTransition(IConnectionLine line, string trigger, string guard, string action)	Method	Sets guard/action/trigger fields on a concrete connection line.

StateNode (class)

Regular state: rounded rectangle with optional title and entry/exit/do activities, one input and multiple outputs.

Member	Kind	Description
string Title	Property	Gets or sets the title.
string EntryAction	Property	Activity executed when the state is entered (UML entry action).
string ExitAction	Property	Activity executed when the state is exited (UML exit action).
string DoActivity	Property	Activity executed while the state is active (UML do activity).
StateNode()	Method	Initializes a new instance of the StateNode class.