DFD family | Beep.Skia Documentation

Complete API surface of the Beep.Skia.DFD assembly: 23 public types with their documented members. Follow the family guide for usage patterns.

Types in this assembly

DFDBalanceIssue class
DFDBalanceSeverity enum
DFDBalancingValidator class
DFDControl class
DFDDataStore class
DFDDataStoreCylinder class
DFDDataStoreOpenEnded class
DFDDataStoreParallel class
DFDDataStoreShared class
DFDExternalEntity class
DFDExternalEntityGaneSarson class
DFDLevelFrame class
DFDLevelNavigator class
DFDNote class
DFDProcess class
DFDProcessCircle class
DFDProcessGaneSarson class
DFDProcessGroupBoundary class
DFDProcessMultiIO class
DFDProcessNumbered class
DFDProcessOval class
DFDSubsystemContainer class
DFDTrustBoundary class

DFDBalanceIssue (class)

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

DFDBalanceSeverity (enum)

DFDBalancingValidator (class)

DFD Balancing Validator — checks consistency between parent and child DFD levels. Validates that data flows entering/exiting a child diagram match the parent process's inputs/outputs.

Member	Kind	Description
`List<DFDBalanceIssue> Issues`	Property	Gets or sets the issues.
`bool Validate(SkiaComponent parentProcess, IReadOnlyList<SkiaComponent> childComponents, IReadOnlyList<IConnectionLine> childLines)`	Method	Validates that a child DFD diagram balances with its parent process definition. The parent DFDProcess being decomposed. Components in the child diagram. Connection lines in the child diagram. True if the diagram is balanced.

DFDControl (class)

Base class for DFD visual nodes. Pure component (no editor), registers ports and draws label/ports.

Member	Kind	Description
`int InPortCount`	Property	Gets or sets the in port count.
`int OutPortCount`	Property	Gets or sets the out port count.

DFDDataStore (class)

DFD Data Store: rectangle with double vertical line on the left.

Member	Kind	Description
`string Label`	Property	Gets or sets the label.
`DFDDataStore()`	Method	Initializes a new instance of the DFDDataStore class.

DFDDataStoreCylinder (class)

DFD Data Store (Database): cylindrical shape with top ellipse.

Member	Kind	Description
`DFDDataStoreCylinder()`	Method	Initializes a new instance of the DFDDataStoreCylinder class.

DFDDataStoreOpenEnded (class)

DFD Data Store: open-ended rectangle (no right border) variant.

Member	Kind	Description
`DFDDataStoreOpenEnded()`	Method	Initializes a new instance of the DFDDataStoreOpenEnded class.

DFDDataStoreParallel (class)

DFD Data Store (Yourdon/DeMarco): two parallel horizontal lines.

Member	Kind	Description
`DFDDataStoreParallel()`	Method	Initializes a new instance of the DFDDataStoreParallel class.

DFDDataStoreShared (class)

DFD Shared Data Store: rectangle with double vertical lines on both left and right sides.

Member	Kind	Description
`DFDDataStoreShared()`	Method	Initializes a new instance of the DFDDataStoreShared class.

DFDExternalEntity (class)

DFD External Entity: rectangle node.

Member	Kind	Description
`string Label`	Property	Gets or sets the label.
`DFDExternalEntity()`	Method	Initializes a new instance of the DFDExternalEntity class.

DFDExternalEntityGaneSarson (class)

DFD External Entity (Gane & Sarson): rectangle with a header band.

Member	Kind	Description
`DFDExternalEntityGaneSarson()`	Method	Initializes a new instance of the DFDExternalEntityGaneSarson class.

DFDLevelFrame (class)

A level in the DFD decomposition hierarchy.

Member	Kind	Description
`string ProcessName`	Property	Gets or sets the process name.
`DiagramDto? Diagram`	Property	Gets or sets the diagram.

DFDLevelNavigator (class)

Manages drill-down navigation across DFD decomposition levels. The caller captures the current diagram as a DiagramDto before drilling in, and restores frames when navigating up.

Member	Kind	Description
`DFDLevelFrame? Current`	Property	Gets the currently displayed level.
`bool CanGoUp`	Property	Gets a value indicating whether there is a parent level to return to.
`int Depth`	Property	Gets the current decomposition depth (0 = top level).
`string Breadcrumb`	Property	Gets a breadcrumb like "Level 0 > Process 1 > Process 1.1".
`void Reset(DiagramDto? rootDiagram = null)`	Method	Resets navigation to the top-level diagram.
`bool DrillDown(string processName, DiagramDto currentDiagram, DiagramDto childDiagram)`	Method	Drills into a process's child decomposition diagram. Display name of the process being decomposed. Live snapshot of the currently displayed diagram (pushed as the parent frame). The child diagram to display. True when the drill-down started.
`DFDLevelFrame? GoUp()`	Method	Returns to the parent level. The frame now displayed, or null when already at the top level.

DFDNote (class)

DFD Note: informational sticky-note; no ports.

Member	Kind	Description
`DFDNote()`	Method	Initializes a new instance of the DFDNote class.

DFDProcess (class)

DFD Process: rounded rectangle node with one input and one output. Supports drill-down decomposition via ChildDiagramData.

Member	Kind	Description
`string Label`	Property	Gets or sets the label.
`string ProcessId`	Property	Gets or sets a unique process identifier (e.g., "1.0", "2.1") for DFD decomposition numbering.
`Beep.Skia.Serialization.DiagramDto? ChildDiagramData`	Property	Child diagram DTO for this process's decomposition (Level N+1). Set this when a child diagram exists.
`bool HasChildDiagram`	Property	Whether a child decomposition diagram exists for this process.
`DFDProcess()`	Method	Initializes a new instance of the DFDProcess class.

DFDProcessCircle (class)

DFD Process (Yourdon/DeMarco): circular process node with one input and one output.

Member	Kind	Description
`DFDProcessCircle()`	Method	Initializes a new instance of the DFDProcessCircle class.

DFDProcessGaneSarson (class)

DFD Process (Gane & Sarson): rectangular process with header band for ID/numbering.

Member	Kind	Description
`DFDProcessGaneSarson()`	Method	Initializes a new instance of the DFDProcessGaneSarson class.

DFDProcessGroupBoundary (class)

Process grouping boundary with a distinctive dash pattern; no ports.

Member	Kind	Description
`DFDProcessGroupBoundary()`	Method	Initializes a new instance of the DFDProcessGroupBoundary class.

DFDProcessMultiIO (class)

DFD Process supporting configurable multiple inputs and outputs.

Member	Kind	Description
`int Inputs`	Property	Gets or sets the inputs.
`int Outputs`	Property	Gets or sets the outputs.
`DFDProcessMultiIO()`	Method	Initializes a new instance of the DFDProcessMultiIO class.

DFDProcessNumbered (class)

DFD Process with an ID bubble inside.

Member	Kind	Description
`string ProcessId`	Property	Gets or sets the process id.
`DFDProcessNumbered()`	Method	Initializes a new instance of the DFDProcessNumbered class.

DFDProcessOval (class)

DFD Process (SSADM): ellipse process node with one input and one output.

Member	Kind	Description
`DFDProcessOval()`	Method	Initializes a new instance of the DFDProcessOval class.

DFDSubsystemContainer (class)

Subsystem/Package container with title bar; no ports.

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

DFDTrustBoundary (class)

DFD Trust Boundary: dashed rounded rectangle container; no ports.

Member	Kind	Description
`DFDTrustBoundary()`	Method	Initializes a new instance of the DFDTrustBoundary class.