seat_kit library

Classes

GaZoneSpec: Describes one general-admission zone in a gaSection layout.
SeatCategory: A named grouping for seats (e.g. "VIP", "Balcony").
SeatDecoration: A non-selectable visual element placed on a seat map, such as a stage, screen, or entrance marker.
SeatElement<T>: A single selectable seat on a seat map.
SeatFilter: Kit-ignorant filter that dims and disables non-matching seats.
SeatFilterBar: A wrapping row of card-style filter buttons that emits a bool Function(SeatElement<dynamic>)? predicate whenever the user toggles a card.
SeatMap<T>: The top-level description of a venue's seat layout.
SeatMapPainter: Paints every SeatElement and SeatDecoration of a SeatMap onto a single canvas using rounded rectangles sized by each seat's SeatElement.width / SeatElement.height.
SeatMapTheme: Visual configuration for SeatMapView.
SeatMapView<T>: Renders a SeatMap at a fit-to-screen fixed scale with tap-to-select.
SeatPosition: A coordinate in the abstract 2D space of a seat map canvas.
SeatSelectionController: Owns the set of locally selected seat ids for a given seat map and enforces its selection rules on every mutation.
SeatSelectionControllerFamily: Owns the set of locally selected seat ids for a given seat map and enforces its selection rules on every mutation.
SeatSelectionControllerProvider: Owns the set of locally selected seat ids for a given seat map and enforces its selection rules on every mutation.
SelectionDecision: The result of an app-supplied canSelect predicate.
SelectionResult: The outcome of a selection mutation attempt.
SelectionRules: Constraints that govern how seats may be selected on a seat map.
TableSpec: Describes a single table in a restaurantTables layout.

Enums

DecorationKind: The kind of non-selectable visual a SeatDecoration represents.
SeatStatus: The lifecycle state of a selectable seat element.
SeatStyle: How SeatStatus.available seats are painted on the seat map.
SelectionRejectionReason: The reason a selection mutation attempt was rejected.
TableShape: The shape used to position seats around a table.

Extensions

SeatCategoryPatterns on SeatCategory: Adds pattern-matching-related methods to SeatCategory.
SeatDecorationPatterns on SeatDecoration: Adds pattern-matching-related methods to SeatDecoration.
SeatElementPatterns on SeatElement<T>: Adds pattern-matching-related methods to SeatElement.
SeatMapPatterns on SeatMap<T>: Adds pattern-matching-related methods to SeatMap.
SeatPositionPatterns on SeatPosition: Adds pattern-matching-related methods to SeatPosition.
SelectionDecisionPatterns on SelectionDecision: Adds pattern-matching-related methods to SelectionDecision.
SelectionResultPatterns on SelectionResult: Adds pattern-matching-related methods to SelectionResult.
SelectionRulesPatterns on SelectionRules: Adds pattern-matching-related methods to SelectionRules.

Constants

kCategoryDoubleLower → const SeatCategory: Lower double berth — right side of the aisle (wider, fits two).
kCategoryDoubleUpper → const SeatCategory: Upper double berth — above double lower berths.
kCategorySeater → const SeatCategory: Regular seater seat — front section of the bus.
kCategorySingleLower → const SeatCategory: Lower single berth — window side, left of the aisle.
kCategorySingleUpper → const SeatCategory: Upper single berth — above single lower berths.
kSleeper44CategoryDL → const SeatCategory: Double Lower berth — full-height berths beneath the seaters in the middle column group of the sleeper44 reference layout.
kSleeper44DefaultPrices → const Map<String, String>: Default display prices per category id, used when sleeper44Layout's priceFor argument doesn't supply one. The kit never interprets these values beyond storing them on SeatCategory.displayPrice.
kSleeper48CategoryDU → const SeatCategory: Double Upper berth — rightmost two columns.
kSleeper48CategorySeater → const SeatCategory: Half-height seater — center two columns (stacked two per row slot).
kSleeper48CategorySL → const SeatCategory: Single Lower berth — second column from left.
kSleeper48CategorySU → const SeatCategory: Single Upper berth — leftmost column of the sleeper48 reference layout.
kSleeper60CategoryCL → const SeatCategory: Full-height berths beneath the C-seaters, left of the central aisle.
kSleeper60CategoryCU → const SeatCategory: Far-left full-height berth column of the sleeper60 reference layout.
kSleeper60CategoryDL → const SeatCategory: Full-height berths beneath the D-seaters, right of the central aisle.
kSleeper60DefaultPrices → const Map<String, String>: Default display prices per category id, used when sleeper60Layout's priceFor argument doesn't supply one. The kit never interprets these values beyond storing them on SeatCategory.displayPrice. The C and D seater groups share the 'seater' category id and price.

Properties

seatSelectionControllerProvider → SeatSelectionControllerFamily: Owns the set of locally selected seat ids for a given seat map and enforces its selection rules on every mutation.
final

Functions

busLayout<T>({int berthRows = 7, int seaterRows = 3, double berthWidth = 38, double berthHeight = 68, double seaterWidth = 38, double seaterHeight = 34, double berthSpacingY = 76, double seaterSpacingY = 44, double singleBerthGapX = 6, double doubleBerthGapX = 6, double aisleWidth = 28, double seaterSpacingX = 44, double leftMargin = 40, double topMargin = 8, String id = 'bus', String name = 'Sleeper Bus', T? dataBuilder(String seatId, String seatType)?, SelectionRules selectionRules = const SelectionRules()}) → SeatMap<T>: Generates an Indian-style sleeper coach seat map.
gaSection<T>({required List<GaZoneSpec> zones, String id = 'ga', String name = 'General Admission', bool addStage = true, T? dataBuilder(String seatId)?, SelectionRules selectionRules = const SelectionRules()}) → SeatMap<T>: Generates a general-admission seat map: one selectable SeatElement per zone, plus a matching zone-block SeatDecoration and an optional stage/screen decoration at the front.
restaurantTables<T>({required List<TableSpec> tables, String id = 'restaurant', String name = 'Restaurant', SeatPosition? entrancePosition, T? dataBuilder(String seatId)?, SelectionRules selectionRules = const SelectionRules()}) → SeatMap<T>: Generates a restaurant-style seat map: scattered tables with seats placed around them, plus an entrance decoration.
sleeper44Layout<T>({double berthWidth = 38, double berthHeight = 68, double seaterWidth = 38, double seaterHeight = 34, double berthSpacingY = 76, double intraGroupGap = 4, double centralAisleWidth = 44, double interGroupGap = 32, double leftMargin = 40, double topMargin = 16, String id = 'sleeper44', String name = 'Sleeper 44', Map<String, String>? priceFor, T? dataBuilder(String seatId, String seatType)?, SelectionRules selectionRules = const SelectionRules()}) → SeatMap<T>: Generates a 44-seat Indian sleeper coach seat map.
sleeper48Layout<T>({double berthWidth = 38, double berthHeight = 68, double seaterWidth = 38, double seaterHeight = 34, double berthSpacingY = 76, double intraGroupGap = 4, double centralAisleWidth = 44, double interGroupGap = 32, double leftMargin = 40, double topMargin = 16, String id = 'sleeper48', String name = 'Sleeper 48', T? dataBuilder(String seatId, String seatType)?, SelectionRules selectionRules = const SelectionRules()}) → SeatMap<T>: Generates the reference 48-seat Indian sleeper coach seat map.
sleeper60Layout<T>({double berthWidth = 38, double berthHeight = 68, double seaterWidth = 38, double seaterHeight = 34, double berthSpacingY = 76, double intraGroupGap = 4, double centralAisleWidth = 44, double interGroupGap = 32, double leftMargin = 40, double topMargin = 16, String id = 'sleeper60', String name = 'Sleeper 60', Map<String, String>? priceFor, T? dataBuilder(String seatId, String seatType)?, SelectionRules selectionRules = const SelectionRules()}) → SeatMap<T>: Generates a 60-seat Indian sleeper coach seat map.
theaterGrid<T>({required int rows, required int cols, String id = 'theater', String name = 'Theatre', List<int> aisleAfterColumns = const [], bool markAisles = true, bool curvedRows = false, double seatSpacingX = 40, double seatSpacingY = 44, double aisleWidth = 20, double curveDepth = 18, double topMargin = 90, double leftMargin = 40, T? dataBuilder(String seatId, int rowIndex, int colNumber)?, Map<int, SeatCategory>? rowCategories, SelectionRules selectionRules = const SelectionRules()}) → SeatMap<T>: Generates a theatre-style seat map: a rectangular grid of rows and columns with a stage/screen decoration at the front (top, y = 0).
zoneLabelFor(GaZoneSpec zone) → String: Returns the label string that gaSection places on a zone element.

Typedefs

CanSelectPredicate = SelectionDecision Function(SeatElement seat, SeatMap seatMap, Set<String> selectedIds): App-supplied business-rule hook evaluated for a seat the user is trying to select.
SelectionRejection = SelectionRejected: A rejected SelectionResult, carrying the SelectionRejectionReason and an optional app-supplied message.

Classes

Enums

Extensions

Constants

Properties

Functions

Typedefs

seat_kit package

seat_kit library