data class PanZoomMetrics(val center: DoubleOffset = DoubleOffset.Zero, val zoom: Double = 1.0, val scale: Double = 1.0, val viewportSize: IntSize = IntSize.Zero, val contentBounds: LongRect = LongRect.Zero, val fit: PanZoomFit = PanZoomFit.Contain, val geometryKnown: Boolean = false)

Immutable position and resolved geometry snapshot for a pan-and-zoom viewport.

PanZoomState

class PanZoomState(initialCenter: DoubleOffset? = null, initialZoom: Double = 1.0, val minimumZoom: Double = 1.0, val maximumZoom: Double = 64.0)

Caller-owned mutable transform shared by one viewport and independent navigation controls.

PanZoomStateObserver

class PanZoomStateObserver : AutoCloseable

Privileged owner-thread observer identity used by one retained pan-and-zoom viewport.

PlayerHeadScale

data class PlayerHeadScale(val factor: Int)

A positive integer scale for one eight-by-eight Minecraft player-head layer.

PlayerSkinSource

sealed interface PlayerSkinSource

Platform-neutral source for a player skin used by PlayerHead.

RowScope

sealed class RowScope : UiScope

Callback-lifetime scope for emitting and configuring direct row children.

ScrollMetrics

data class ScrollMetrics(val offset: Double = 0.0, val viewportExtent: Int = 0, val contentExtent: Int = 0)

Immutable geometry snapshot shared by one scroll area and any linked scrollbars.

ScrollState

class ScrollState(initialOffset: Double = 0.0)

Caller-owned mutable position shared by a scroll area and zero or more independent scrollbars.

ScrollStateObserver

class ScrollStateObserver : AutoCloseable

Privileged owner-thread observer identity shared with one retained scroll node.

SelectionListState

class SelectionListState<K : Any>(val listState: VirtualListState<K> = VirtualListState(), initialSelection: K? = null)

Caller-owned owner-thread selection and navigation state for a generic SelectionList.

SliderState

class SliderState(initialValue: Double, val range: ClosedFloatingPointRange<Double> = 0.0..1.0, val steps: Int = 0)

Caller-owned owner-thread numeric state for one Slider.

SlotBinding

sealed interface SlotBinding

Immutable declarative locator for one synchronized inventory slot.

Slots

object Slots

Creates immutable synchronized slot locators without retaining a player, menu, or platform.

StackScope

sealed class StackScope : UiScope

Callback-lifetime scope for emitting and configuring direct stack children.

StrataDsl

@DslMarker

@Target(allowedTargets = [AnnotationTarget.CLASS, AnnotationTarget.TYPE])

annotation class StrataDsl

Marks the receiver scopes that participate in the Strata declarative UI builder. The marker prevents declarations from unrelated nested Strata scopes from being used accidentally through an outer receiver.

TabSelectionIndicator

sealed interface TabSelectionIndicator

Visual indicator rendered by a selected Tab.

TextAreaState

class TextAreaState(initialValue: String = "", val maxLength: Int = 32767)

Owner-thread mutable text and vertical scroll position for one multiline editor.

TextAreaViewport

sealed interface TextAreaViewport

Immutable outer viewport requested by a multiline text editor.

TextFieldState

class TextFieldState(initialValue: String = "", val maxLength: Int = 32)

Owner-thread mutable value for one single-line text field.

TextStyle

enum TextStyle : Enum<TextStyle>

Closed profile-backed color and shadow policy for text components.

TiledImageCachePolicy

data class TiledImageCachePolicy(val maxEntries: Int = 512, val maxBytes: Long, val overscanTiles: Int = 1)

Bounds one retained tiled-image attachment's current tile working set.

TiledImageLevel

data class TiledImageLevel(val tilePixelSize: IntSize, val contentUnitsPerPixel: Long)

Describes one immutable resolution level in a tiled raster source.

TiledImageScope

sealed class TiledImageScope : UiScope

Callback-lifetime scope for fixed-size overlay children positioned in tiled-image content coordinates.

TiledImageSource

interface TiledImageSource

Externally owned immutable description of one logical raster assembled from revisioned tiles.

TiledImageTile

sealed interface TiledImageTile

Immutable current presentation state of one tiled-image cell.

TiledImageTileId

data class TiledImageTileId(val level: Int, val column: Long, val row: Long)

Identifies one tile in a source-owned resolution level.

UiScope

sealed class UiScope

Callback-lifetime scope used to emit immutable element descriptions. A scope is confined to the thread that constructs it and remains valid only while its enclosing component callback is running. The scope temporarily retains references to caller-owned immutable Element instances and the builder returns the exact single root instance. The protected constructor is reserved for scope implementations in this module and package, as required by Kotlin's sealed hierarchy rules. Application code cannot construct or implement this sealed scope.

VirtualListState

class VirtualListState<K : Any>(val scrollState: ScrollState = ScrollState(), initialIndex: Int? = null)

Caller-owned owner-thread navigation state shared by one VirtualList and optional independent Scrollbar.

Functions

Button

fun UiScope.Button(label: UiText, width: Int = 150, enabled: Boolean = true, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Emits one fixed-height profile-backed button appearance and semantic surface.

fun UiScope.Button(label: String, width: Int = 150, enabled: Boolean = true, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Emits one literal fixed-height profile-backed button appearance and semantic surface.

Canvas

fun UiScope.Canvas(source: CanvasSource, size: IntSize, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Emits one input-passive rectangular region displaying an externally owned source.

canvasSource

fun canvasSource(image: DrawImage): CanvasSource

Describes a canvas displaying one immutable CPU image without a native runtime dependency.

fun canvasSource(frames: StateSource<DrawImage>): CanvasSource

Describes a canvas observing revisioned immutable CPU frames through the existing state-source protocol.

Checkbox

fun UiScope.Checkbox(label: UiText, state: CheckboxState, width: Int = 150, enabled: Boolean = true, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Emits one Minecraft-profile Checkbox backed by caller-owned state.

fun UiScope.Checkbox(label: String, state: CheckboxState, width: Int = 150, enabled: Boolean = true, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Literal-label overload of Checkbox.

Column

fun UiScope.Column(modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null, spacing: Int = 0, verticalArrangement: Arrangement = Arrangement.Start, horizontalAlignment: HorizontalAlignment = HorizontalAlignment.Start, content: ColumnScope.() -> Unit)

Emits one column container with the descriptions produced by its callback.

CycleButton

fun <T : Any> UiScope.CycleButton(state: CycleButtonState<T>, width: Int = 150, enabled: Boolean = true, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null, label: (T) -> UiText = { value -> UiText.Literal(state.formatKnownMember(value)) })

Emits one finite-option Minecraft-profile CycleButton.

evaluateComponentTree

fun evaluateComponentTree(content: UiScope.() -> Unit): Element

Evaluates one component callback without installing a profile runtime.

FlowRow

fun UiScope.FlowRow(modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null, horizontalSpacing: Int = 0, verticalSpacing: Int = 0, horizontalArrangement: Arrangement = Arrangement.Start, verticalAlignment: VerticalAlignment = VerticalAlignment.Top, content: FlowRowScope.() -> Unit)

Emits horizontal children that wrap into rows when their measured widths and gaps exceed a bounded width.

Grid

fun UiScope.Grid(columns: Int, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null, horizontalSpacing: Int = 0, verticalSpacing: Int = 0, contentAlignment: Alignment = Alignment.TopStart, content: GridScope.() -> Unit)

Emits one fixed-column grid with the descriptions produced by its callback.

Image

fun UiScope.Image(source: ImageSource, size: IntSize? = null, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Emits one immutable nearest-sampled image component.

fun UiScope.Image(source: ImageSource, sourceRegion: IntRect, size: IntSize = IntSize(sourceRegion.width, sourceRegion.height), modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Emits one immutable nearest-sampled source region from an image.

LoadingIndicator

fun UiScope.LoadingIndicator(size: IntSize = IntSize(10, 4), modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Emits the active Minecraft profile's discrete loading animation.

PlayerHead

fun UiScope.PlayerHead(source: PlayerSkinSource = PlayerSkinSource.CurrentPlayer, scale: PlayerHeadScale, showHat: Boolean = true, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null, loadingContent: UiScope.() -> Unit? = null, failureContent: UiScope.() -> Unit? = null)

Emits one square layered player head at a pixel-perfect integer scale.

fun UiScope.~~PlayerHead~~(source: PlayerSkinSource = PlayerSkinSource.CurrentPlayer, size: Int = 24, showHat: Boolean = true, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null, loadingContent: UiScope.() -> Unit? = null, failureContent: UiScope.() -> Unit? = null)

Emits one square layered player head at an arbitrary logical size.

ProgressBar

fun UiScope.ProgressBar(progress: Double, size: IntSize = IntSize(100, 12), modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Emits one determinate Minecraft-profile progress bar.

Row

fun UiScope.Row(modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null, spacing: Int = 0, horizontalArrangement: Arrangement = Arrangement.Start, verticalAlignment: VerticalAlignment = VerticalAlignment.Top, content: RowScope.() -> Unit)

Emits one row container with the descriptions produced by its callback.

ScrollArea

fun UiScope.ScrollArea(state: ScrollState, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null, scrollRate: Int = 9, content: UiScope.() -> Unit)

Emits one profile-backed scroll viewport containing exactly one root.

Scrollbar

fun UiScope.Scrollbar(state: ScrollState, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Emits one independently placed profile-backed vertical scrollbar linked to state.

SelectionList

fun <T : Any, K : Any> UiScope.SelectionList(items: List<T>, keyOf: (T) -> K, state: SelectionListState<K>, viewportSize: IntSize, rowHeight: Int, canLoadLeading: Boolean = false, canLoadTrailing: Boolean = false, scrollRate: Int = 10, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null, content: UiScope.(T) -> Unit)

Emits a selectable fixed-row virtual list backed by an immutable in-memory snapshot.

Slider

fun UiScope.Slider(label: UiText, state: SliderState, width: Int = 150, enabled: Boolean = true, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Emits one horizontal Minecraft-profile Slider backed by caller-owned state.

fun UiScope.Slider(label: String, state: SliderState, width: Int = 150, enabled: Boolean = true, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Literal-label overload of Slider.

Slot

fun UiScope.Slot(bind: SlotBinding? = null, highlightable: Boolean = true, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null, content: UiScope.() -> Unit? = null)

Emits one 18 by 18 inventory slot with an optional item root or synchronized binding.

Spacer

fun UiScope.Spacer(modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Emits one empty spacer component.

Stack

fun UiScope.Stack(modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null, contentAlignment: Alignment = Alignment.TopStart, content: StackScope.() -> Unit)

Emits one overlay stack with the descriptions produced by its callback.

Tab

fun UiScope.Tab(label: UiText, selected: Boolean, width: Int = 150, enabled: Boolean = true, indicator: TabSelectionIndicator = TabSelectionIndicator.Underline, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Emits one externally controlled tab.

fun UiScope.Tab(label: String, selected: Boolean, width: Int = 150, enabled: Boolean = true, indicator: TabSelectionIndicator = TabSelectionIndicator.Underline, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Literal overload of Tab with the same ownership, failure, and no-implicit-focus-or-activation contract.

Text

fun UiScope.Text(text: UiText, style: TextStyle = TextStyle.Normal, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Emits one single-line profile-backed text component.

fun UiScope.Text(text: String, style: TextStyle = TextStyle.Normal, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Emits one literal single-line profile-backed text component.

fun UiScope.Text(text: UiText, font: ResourceId, style: TextStyle = TextStyle.Normal, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Emits one single-line text component using an explicitly selected resource-pack font.

fun UiScope.Text(text: UiText, layout: TextLayout, style: TextStyle = TextStyle.Normal, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Emits one profile-backed text component with an explicit single-line or multiline layout.

fun UiScope.Text(text: String, font: ResourceId, style: TextStyle = TextStyle.Normal, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Emits one literal single-line text component using an explicitly selected resource-pack font.

fun UiScope.Text(text: String, layout: TextLayout, style: TextStyle = TextStyle.Normal, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Literal overload of Text with the same explicit layout, ownership, and failure contract.

fun UiScope.Text(text: UiText, layout: TextLayout, font: ResourceId, style: TextStyle = TextStyle.Normal, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Emits explicitly laid-out text using a selected resource-pack font.

fun UiScope.Text(text: String, layout: TextLayout, font: ResourceId, style: TextStyle = TextStyle.Normal, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Literal overload of Text with the same explicit layout and font-selection contract.

TextArea

fun UiScope.TextArea(state: TextAreaState, viewport: TextAreaViewport, enabled: Boolean = true, textStyle: TextStyle = TextStyle.TextField, wrap: TextWrap = TextWrap.Word, lineSpacing: Int = 0, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Emits one multiline editor with independently placeable vertical scrolling.

fun UiScope.TextArea(state: TextAreaState, viewport: TextAreaViewport, font: ResourceId, enabled: Boolean = true, textStyle: TextStyle = TextStyle.TextField, wrap: TextWrap = TextWrap.Word, lineSpacing: Int = 0, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Emits one multiline editor using an explicitly selected resource-pack font.

TextField

fun UiScope.TextField(state: TextFieldState, enabled: Boolean = true, textStyle: TextStyle = TextStyle.TextField, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Emits one 200 by 20 single-line text field.

fun UiScope.TextField(state: TextFieldState, size: IntSize, enabled: Boolean = true, textStyle: TextStyle = TextStyle.TextField, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Emits one explicitly sized single-line text field.

fun UiScope.TextField(state: TextFieldState, font: ResourceId, enabled: Boolean = true, textStyle: TextStyle = TextStyle.TextField, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Emits one 200 by 20 single-line text field using an explicitly selected resource-pack font.

fun UiScope.TextField(state: TextFieldState, size: IntSize, font: ResourceId, enabled: Boolean = true, textStyle: TextStyle = TextStyle.TextField, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null)

Emits one explicitly sized single-line text field using a selected resource-pack font.

TiledImage

fun UiScope.TiledImage(source: TiledImageSource, state: PanZoomState, size: IntSize, fit: PanZoomFit = PanZoomFit.Contain, cachePolicy: TiledImageCachePolicy = TiledImageCachePolicy.Default, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null, content: TiledImageScope.() -> Unit = {})

Emits one fixed viewport over a logical raster assembled from independently revisioned image tiles.

VirtualList

fun <T : Any, K : Any> UiScope.VirtualList(items: List<T>, keyOf: (T) -> K, state: VirtualListState<K>, viewportSize: IntSize, rowHeight: Int, scrollRate: Int = 10, canLoadLeading: Boolean = false, canLoadTrailing: Boolean = false, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null, content: UiScope.(T) -> Unit)

Emits a fixed-row virtual viewport backed by an immutable in-memory list.

fun <T : Any, K : Any> UiScope.VirtualList(itemCount: () -> Int, itemAt: (Int) -> T, keyAt: (Int) -> K, state: VirtualListState<K>, viewportSize: IntSize, rowHeight: Int, indexOfKey: (K) -> Int?? = null, scrollRate: Int = 10, canLoadLeading: Boolean = false, canLoadTrailing: Boolean = false, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null, content: UiScope.(T) -> Unit)

Emits a fixed-row virtual viewport backed by a caller-owned dynamic indexed source.

fun <T : Any, K : Any> UiScope.VirtualList(itemCount: Int, itemAt: (Int) -> T, keyAt: (Int) -> K, state: VirtualListState<K>, viewportSize: IntSize, rowHeight: Int, indexOfKey: (K) -> Int? = { target -> (0 until itemCount).firstOrNull { index -> keyAt(index) == target } }, scrollRate: Int = 10, canLoadLeading: Boolean = false, canLoadTrailing: Boolean = false, modifier: Modifier = Modifier.Empty, key: ElementKey<*>? = null, content: UiScope.(T) -> Unit)

Emits a fixed-row virtual viewport backed by a known finite indexed source.