From 4c3aefcfae56846280b7f614bbec1927c963377c Mon Sep 17 00:00:00 2001
From: Alexander Nozik <altavir@gmail.com>
Date: Sat, 23 Jul 2022 13:49:47 +0300
Subject: [PATCH] package refactoring

---
 .../center/sciprog/maps/compose/MapFeature.kt | 93 ++++++++++---------
 ...FeatureBuilder.kt => MapFeatureBuilder.kt} | 44 ++++-----
 .../sciprog/maps/compose/MapTileProvider.kt   | 18 ++--
 .../center/sciprog/maps/compose/MapView.kt    | 14 +--
 .../center/sciprog/maps/compose/MapViewJvm.kt |  4 +-
 .../sciprog/maps/coordinates/Coordinates2D.kt | 11 ---
 .../coordinates/GeodeticMapCoordinates.kt     |  2 +-
 .../center/sciprog/maps/coordinates/GmcBox.kt |  6 +-
 maps-kt-scheme/build.gradle.kts               |  1 -
 .../sciprog/maps/scheme/SchemeCoordinates.kt  | 10 +-
 .../sciprog/maps/scheme/SchemeFeature.kt      |  0
 .../maps/scheme/SchemeFeatureBuilderImpl.kt}  | 30 +++---
 .../center/sciprog/maps/scheme/SchemeView.kt  |  4 +-
 13 files changed, 115 insertions(+), 122 deletions(-)
 rename maps-kt-compose/src/commonMain/kotlin/center/sciprog/maps/compose/{FeatureBuilder.kt => MapFeatureBuilder.kt} (66%)
 delete mode 100644 maps-kt-core/src/commonMain/kotlin/center/sciprog/maps/coordinates/Coordinates2D.kt
 rename maps-kt-scheme/src/{jvmMain => commonMain}/kotlin/center/sciprog/maps/scheme/SchemeFeature.kt (100%)
 rename maps-kt-scheme/src/{jvmMain/kotlin/center/sciprog/maps/scheme/FeatureBuilder.kt => commonMain/kotlin/center/sciprog/maps/scheme/SchemeFeatureBuilderImpl.kt} (86%)

diff --git a/maps-kt-compose/src/commonMain/kotlin/center/sciprog/maps/compose/MapFeature.kt b/maps-kt-compose/src/commonMain/kotlin/center/sciprog/maps/compose/MapFeature.kt
index 76a4396..5602a54 100644
--- a/maps-kt-compose/src/commonMain/kotlin/center/sciprog/maps/compose/MapFeature.kt
+++ b/maps-kt-compose/src/commonMain/kotlin/center/sciprog/maps/compose/MapFeature.kt
@@ -15,11 +15,12 @@ import center.sciprog.maps.coordinates.GmcBox
 import center.sciprog.maps.coordinates.wrapAll
 
 //TODO replace zoom range with zoom-based representation change
-sealed class MapFeature(val zoomRange: IntRange) {
-    abstract fun getBoundingBox(zoom: Int): GmcBox?
+public sealed interface MapFeature {
+    public val zoomRange: IntRange
+    public fun getBoundingBox(zoom: Int): GmcBox?
 }
 
-fun Iterable<MapFeature>.computeBoundingBox(zoom: Int): GmcBox? =
+public fun Iterable<MapFeature>.computeBoundingBox(zoom: Int): GmcBox? =
     mapNotNull { it.getBoundingBox(zoom) }.wrapAll()
 
 internal fun Pair<Double, Double>.toCoordinates() = GeodeticMapCoordinates.ofDegrees(first, second)
@@ -29,68 +30,72 @@ internal val defaultZoomRange = 1..18
 /**
  * A feature that decides what to show depending on the zoom value (it could change size of shape)
  */
-class MapFeatureSelector(val selector: (zoom: Int) -> MapFeature) : MapFeature(defaultZoomRange) {
+public class MapFeatureSelector(
+    public val selector: (zoom: Int) -> MapFeature,
+) : MapFeature {
+    override val zoomRange: IntRange get() = defaultZoomRange
+
     override fun getBoundingBox(zoom: Int): GmcBox? = selector(zoom).getBoundingBox(zoom)
 }
 
-class MapDrawFeature(
-    val position: GeodeticMapCoordinates,
-    zoomRange: IntRange = defaultZoomRange,
-    val drawFeature: DrawScope.() -> Unit,
-) : MapFeature(zoomRange) {
+public class MapDrawFeature(
+    public val position: GeodeticMapCoordinates,
+    override val zoomRange: IntRange = defaultZoomRange,
+    public val drawFeature: DrawScope.() -> Unit,
+) : MapFeature{
     override fun getBoundingBox(zoom: Int): GmcBox {
         //TODO add box computation
         return GmcBox(position, position)
     }
 }
 
-class MapCircleFeature(
-    val center: GeodeticMapCoordinates,
-    zoomRange: IntRange = defaultZoomRange,
-    val size: Float = 5f,
-    val color: Color = Color.Red,
-) : MapFeature(zoomRange) {
+public class MapCircleFeature(
+    public val center: GeodeticMapCoordinates,
+    override val zoomRange: IntRange = defaultZoomRange,
+    public val size: Float = 5f,
+    public val color: Color = Color.Red,
+) : MapFeature {
     override fun getBoundingBox(zoom: Int): GmcBox = GmcBox(center, center)
 }
 
-class MapLineFeature(
-    val a: GeodeticMapCoordinates,
-    val b: GeodeticMapCoordinates,
-    zoomRange: IntRange = defaultZoomRange,
-    val color: Color = Color.Red,
-) : MapFeature(zoomRange) {
+public class MapLineFeature(
+    public val a: GeodeticMapCoordinates,
+    public val b: GeodeticMapCoordinates,
+    override val zoomRange: IntRange = defaultZoomRange,
+    public val color: Color = Color.Red,
+) : MapFeature {
     override fun getBoundingBox(zoom: Int): GmcBox = GmcBox(a, b)
 }
 
-class MapTextFeature(
-    val position: GeodeticMapCoordinates,
-    val text: String,
-    zoomRange: IntRange = defaultZoomRange,
-    val color: Color = Color.Red,
-) : MapFeature(zoomRange) {
+public class MapTextFeature(
+    public val position: GeodeticMapCoordinates,
+    public val text: String,
+    override val zoomRange: IntRange = defaultZoomRange,
+    public val color: Color = Color.Red,
+) : MapFeature {
     override fun getBoundingBox(zoom: Int): GmcBox = GmcBox(position, position)
 }
 
-class MapBitmapImageFeature(
-    val position: GeodeticMapCoordinates,
-    val image: ImageBitmap,
-    val size: IntSize = IntSize(15, 15),
-    zoomRange: IntRange = defaultZoomRange,
-) : MapFeature(zoomRange) {
+public class MapBitmapImageFeature(
+    public val position: GeodeticMapCoordinates,
+    public val image: ImageBitmap,
+    public val size: IntSize = IntSize(15, 15),
+    override val zoomRange: IntRange = defaultZoomRange,
+) : MapFeature{
     override fun getBoundingBox(zoom: Int): GmcBox = GmcBox(position, position)
 }
 
-class MapVectorImageFeature(
-    val position: GeodeticMapCoordinates,
-    val painter: Painter,
-    val size: DpSize,
-    zoomRange: IntRange = defaultZoomRange,
-) : MapFeature(zoomRange) {
+public class MapVectorImageFeature(
+    public val position: GeodeticMapCoordinates,
+    public val painter: Painter,
+    public val size: DpSize,
+    override val zoomRange: IntRange = defaultZoomRange,
+) : MapFeature {
     override fun getBoundingBox(zoom: Int): GmcBox = GmcBox(position, position)
 }
 
 @Composable
-fun MapVectorImageFeature(
+public fun MapVectorImageFeature(
     position: GeodeticMapCoordinates,
     image: ImageVector,
     size: DpSize = DpSize(20.dp, 20.dp),
@@ -100,9 +105,9 @@ fun MapVectorImageFeature(
 /**
  * A group of other features
  */
-class MapFeatureGroup(
-    val children: Map<FeatureId, MapFeature>,
-    zoomRange: IntRange = defaultZoomRange,
-) : MapFeature(zoomRange) {
+public class MapFeatureGroup(
+    public val children: Map<FeatureId, MapFeature>,
+    override val zoomRange: IntRange = defaultZoomRange,
+) : MapFeature{
     override fun getBoundingBox(zoom: Int): GmcBox? = children.values.mapNotNull { it.getBoundingBox(zoom) }.wrapAll()
 }
diff --git a/maps-kt-compose/src/commonMain/kotlin/center/sciprog/maps/compose/FeatureBuilder.kt b/maps-kt-compose/src/commonMain/kotlin/center/sciprog/maps/compose/MapFeatureBuilder.kt
similarity index 66%
rename from maps-kt-compose/src/commonMain/kotlin/center/sciprog/maps/compose/FeatureBuilder.kt
rename to maps-kt-compose/src/commonMain/kotlin/center/sciprog/maps/compose/MapFeatureBuilder.kt
index 21920e4..a39783c 100644
--- a/maps-kt-compose/src/commonMain/kotlin/center/sciprog/maps/compose/FeatureBuilder.kt
+++ b/maps-kt-compose/src/commonMain/kotlin/center/sciprog/maps/compose/MapFeatureBuilder.kt
@@ -10,15 +10,15 @@ import androidx.compose.ui.unit.DpSize
 import androidx.compose.ui.unit.dp
 import center.sciprog.maps.coordinates.GeodeticMapCoordinates
 
-typealias FeatureId = String
+public typealias FeatureId = String
 
-interface FeatureBuilder {
-    fun addFeature(id: FeatureId?, feature: MapFeature): FeatureId
+public interface MapFeatureBuilder {
+    public fun addFeature(id: FeatureId?, feature: MapFeature): FeatureId
 
-    fun build(): SnapshotStateMap<FeatureId, MapFeature>
+    public fun build(): SnapshotStateMap<FeatureId, MapFeature>
 }
 
-internal class MapFeatureBuilder(initialFeatures: Map<FeatureId, MapFeature>) : FeatureBuilder {
+internal class MapFeatureBuilderImpl(initialFeatures: Map<FeatureId, MapFeature>) : MapFeatureBuilder {
 
     private val content: SnapshotStateMap<FeatureId, MapFeature> = mutableStateMapOf<FeatureId, MapFeature>().apply {
         putAll(initialFeatures)
@@ -35,72 +35,72 @@ internal class MapFeatureBuilder(initialFeatures: Map<FeatureId, MapFeature>) :
     override fun build(): SnapshotStateMap<FeatureId, MapFeature> = content
 }
 
-fun FeatureBuilder.circle(
+public fun MapFeatureBuilder.circle(
     center: GeodeticMapCoordinates,
     zoomRange: IntRange = defaultZoomRange,
     size: Float = 5f,
     color: Color = Color.Red,
     id: FeatureId? = null,
-) = addFeature(
+): FeatureId = addFeature(
     id, MapCircleFeature(center, zoomRange, size, color)
 )
 
-fun FeatureBuilder.circle(
+public fun MapFeatureBuilder.circle(
     centerCoordinates: Pair<Double, Double>,
     zoomRange: IntRange = defaultZoomRange,
     size: Float = 5f,
     color: Color = Color.Red,
     id: FeatureId? = null,
-) = addFeature(
+): FeatureId = addFeature(
     id, MapCircleFeature(centerCoordinates.toCoordinates(), zoomRange, size, color)
 )
 
-fun FeatureBuilder.custom(
+public fun MapFeatureBuilder.custom(
     position: Pair<Double, Double>,
     zoomRange: IntRange = defaultZoomRange,
     id: FeatureId? = null,
     drawFeature: DrawScope.() -> Unit,
-) = addFeature(id, MapDrawFeature(position.toCoordinates(), zoomRange, drawFeature))
+): FeatureId = addFeature(id, MapDrawFeature(position.toCoordinates(), zoomRange, drawFeature))
 
-fun FeatureBuilder.line(
+public fun MapFeatureBuilder.line(
     aCoordinates: Pair<Double, Double>,
     bCoordinates: Pair<Double, Double>,
     zoomRange: IntRange = defaultZoomRange,
     color: Color = Color.Red,
     id: FeatureId? = null,
-) = addFeature(id, MapLineFeature(aCoordinates.toCoordinates(), bCoordinates.toCoordinates(), zoomRange, color))
+): FeatureId = addFeature(id, MapLineFeature(aCoordinates.toCoordinates(), bCoordinates.toCoordinates(), zoomRange, color))
 
-fun FeatureBuilder.text(
+public fun MapFeatureBuilder.text(
     position: GeodeticMapCoordinates,
     text: String,
     zoomRange: IntRange = defaultZoomRange,
     color: Color = Color.Red,
     id: FeatureId? = null,
-) = addFeature(id, MapTextFeature(position, text, zoomRange, color))
+): FeatureId = addFeature(id, MapTextFeature(position, text, zoomRange, color))
 
-fun FeatureBuilder.text(
+public fun MapFeatureBuilder.text(
     position: Pair<Double, Double>,
     text: String,
     zoomRange: IntRange = defaultZoomRange,
     color: Color = Color.Red,
     id: FeatureId? = null,
-) = addFeature(id, MapTextFeature(position.toCoordinates(), text, zoomRange, color))
+): FeatureId = addFeature(id, MapTextFeature(position.toCoordinates(), text, zoomRange, color))
 
 @Composable
-fun FeatureBuilder.image(
+public fun MapFeatureBuilder.image(
     position: Pair<Double, Double>,
     image: ImageVector,
     size: DpSize = DpSize(20.dp, 20.dp),
     zoomRange: IntRange = defaultZoomRange,
     id: FeatureId? = null,
-) = addFeature(id, MapVectorImageFeature(position.toCoordinates(), image, size, zoomRange))
+): FeatureId = addFeature(id, MapVectorImageFeature(position.toCoordinates(), image, size, zoomRange))
 
-fun FeatureBuilder.group(
+public fun MapFeatureBuilder.group(
     zoomRange: IntRange = defaultZoomRange,
     id: FeatureId? = null,
-    builder: FeatureBuilder.() -> Unit,
+    builder: MapFeatureBuilder.() -> Unit,
 ): FeatureId {
-    val map = MapFeatureBuilder(emptyMap()).apply(builder).build()
+    val map = MapFeatureBuilderImpl(emptyMap()).apply(builder).build()
     val feature = MapFeatureGroup(map, zoomRange)
     return addFeature(id, feature)
 }
\ No newline at end of file
diff --git a/maps-kt-compose/src/commonMain/kotlin/center/sciprog/maps/compose/MapTileProvider.kt b/maps-kt-compose/src/commonMain/kotlin/center/sciprog/maps/compose/MapTileProvider.kt
index 3804202..6a71511 100644
--- a/maps-kt-compose/src/commonMain/kotlin/center/sciprog/maps/compose/MapTileProvider.kt
+++ b/maps-kt-compose/src/commonMain/kotlin/center/sciprog/maps/compose/MapTileProvider.kt
@@ -5,27 +5,27 @@ import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Deferred
 import kotlin.math.floor
 
-data class TileId(
+public data class TileId(
     val zoom: Int,
     val i: Int,
     val j: Int,
 )
 
-data class MapTile(
+public data class MapTile(
     val id: TileId,
     val image: ImageBitmap,
 )
 
-interface MapTileProvider {
-    fun CoroutineScope.loadTileAsync(tileId: TileId): Deferred<MapTile>
+public interface MapTileProvider {
+    public fun CoroutineScope.loadTileAsync(tileId: TileId): Deferred<MapTile>
 
-    val tileSize: Int get() = DEFAULT_TILE_SIZE
+    public val tileSize: Int get() = DEFAULT_TILE_SIZE
 
-    fun toIndex(d: Double): Int = floor(d / tileSize).toInt()
+    public fun toIndex(d: Double): Int = floor(d / tileSize).toInt()
 
-    fun toCoordinate(i: Int): Double = (i * tileSize).toDouble()
+    public fun toCoordinate(i: Int): Double = (i * tileSize).toDouble()
 
-    companion object {
-        const val DEFAULT_TILE_SIZE = 256
+    public companion object {
+        public const val DEFAULT_TILE_SIZE: Int = 256
     }
 }
diff --git a/maps-kt-compose/src/commonMain/kotlin/center/sciprog/maps/compose/MapView.kt b/maps-kt-compose/src/commonMain/kotlin/center/sciprog/maps/compose/MapView.kt
index 7907875..d35bf76 100644
--- a/maps-kt-compose/src/commonMain/kotlin/center/sciprog/maps/compose/MapView.kt
+++ b/maps-kt-compose/src/commonMain/kotlin/center/sciprog/maps/compose/MapView.kt
@@ -11,7 +11,7 @@ import kotlin.math.min
 
 
 //TODO consider replacing by modifier
-data class MapViewConfig(
+public data class MapViewConfig(
     val zoomSpeed: Double = 1.0 / 3.0,
     val inferViewBoxFromFeatures: Boolean = false,
     val onClick: MapViewPoint.() -> Unit = {},
@@ -21,7 +21,7 @@ data class MapViewConfig(
 )
 
 @Composable
-expect fun MapView(
+public expect fun MapView(
     mapTileProvider: MapTileProvider,
     computeViewPoint: (canvasSize: DpSize) -> MapViewPoint,
     features: Map<FeatureId, MapFeature>,
@@ -30,15 +30,15 @@ expect fun MapView(
 )
 
 @Composable
-fun MapView(
+public fun MapView(
     mapTileProvider: MapTileProvider,
     initialViewPoint: MapViewPoint,
     features: Map<FeatureId, MapFeature> = emptyMap(),
     config: MapViewConfig = MapViewConfig(),
     modifier: Modifier = Modifier.fillMaxSize(),
-    buildFeatures: @Composable (FeatureBuilder.() -> Unit) = {},
+    buildFeatures: @Composable (MapFeatureBuilder.() -> Unit) = {},
 ) {
-    val featuresBuilder = MapFeatureBuilder(features)
+    val featuresBuilder = MapFeatureBuilderImpl(features)
     featuresBuilder.buildFeatures()
     MapView(
         mapTileProvider,
@@ -66,9 +66,9 @@ public fun MapView(
     features: Map<FeatureId, MapFeature> = emptyMap(),
     config: MapViewConfig = MapViewConfig(),
     modifier: Modifier = Modifier.fillMaxSize(),
-    buildFeatures: @Composable (FeatureBuilder.() -> Unit) = {},
+    buildFeatures: @Composable (MapFeatureBuilder.() -> Unit) = {},
 ) {
-    val featuresBuilder = MapFeatureBuilder(features)
+    val featuresBuilder = MapFeatureBuilderImpl(features)
     featuresBuilder.buildFeatures()
     MapView(
         mapTileProvider,
diff --git a/maps-kt-compose/src/jvmMain/kotlin/center/sciprog/maps/compose/MapViewJvm.kt b/maps-kt-compose/src/jvmMain/kotlin/center/sciprog/maps/compose/MapViewJvm.kt
index d3e41e7..b1d2bfd 100644
--- a/maps-kt-compose/src/jvmMain/kotlin/center/sciprog/maps/compose/MapViewJvm.kt
+++ b/maps-kt-compose/src/jvmMain/kotlin/center/sciprog/maps/compose/MapViewJvm.kt
@@ -33,7 +33,7 @@ private fun Color.toPaint(): Paint = Paint().apply {
 private fun IntRange.intersect(other: IntRange) = max(first, other.first)..min(last, other.last)
 
 internal fun MapViewPoint.move(deltaX: Double, deltaY: Double): MapViewPoint {
-    val newCoordinates = center.sciprog.maps.coordinates.GeodeticMapCoordinates.ofRadians(
+    val newCoordinates = GeodeticMapCoordinates.ofRadians(
         (focus.latitude + deltaY / scaleFactor).coerceIn(
             -MercatorProjection.MAXIMUM_LATITUDE,
             MercatorProjection.MAXIMUM_LATITUDE
@@ -50,7 +50,7 @@ private val logger = KotlinLogging.logger("MapView")
  */
 
 @Composable
-actual fun MapView(
+public actual fun MapView(
     mapTileProvider: MapTileProvider,
     computeViewPoint: (canvasSize: DpSize) -> MapViewPoint,
     features: Map<FeatureId, MapFeature>,
diff --git a/maps-kt-core/src/commonMain/kotlin/center/sciprog/maps/coordinates/Coordinates2D.kt b/maps-kt-core/src/commonMain/kotlin/center/sciprog/maps/coordinates/Coordinates2D.kt
deleted file mode 100644
index 4466edd..0000000
--- a/maps-kt-core/src/commonMain/kotlin/center/sciprog/maps/coordinates/Coordinates2D.kt
+++ /dev/null
@@ -1,11 +0,0 @@
-package center.sciprog.maps.coordinates
-
-/**
- * A marker interface for flat coordinates
- */
-public interface Coordinates2D
-
-public interface CoordinateBox<T: Coordinates2D>{
-    public val a: T
-    public val b :T
-}
\ No newline at end of file
diff --git a/maps-kt-core/src/commonMain/kotlin/center/sciprog/maps/coordinates/GeodeticMapCoordinates.kt b/maps-kt-core/src/commonMain/kotlin/center/sciprog/maps/coordinates/GeodeticMapCoordinates.kt
index 0ce9a71..c7a75eb 100644
--- a/maps-kt-core/src/commonMain/kotlin/center/sciprog/maps/coordinates/GeodeticMapCoordinates.kt
+++ b/maps-kt-core/src/commonMain/kotlin/center/sciprog/maps/coordinates/GeodeticMapCoordinates.kt
@@ -8,7 +8,7 @@ import kotlin.math.PI
 public class GeodeticMapCoordinates private constructor(
     public val latitude: Double,
     public val longitude: Double,
-): Coordinates2D {
+){
 
     override fun equals(other: Any?): Boolean {
         if (this === other) return true
diff --git a/maps-kt-core/src/commonMain/kotlin/center/sciprog/maps/coordinates/GmcBox.kt b/maps-kt-core/src/commonMain/kotlin/center/sciprog/maps/coordinates/GmcBox.kt
index aef5db5..58db19a 100644
--- a/maps-kt-core/src/commonMain/kotlin/center/sciprog/maps/coordinates/GmcBox.kt
+++ b/maps-kt-core/src/commonMain/kotlin/center/sciprog/maps/coordinates/GmcBox.kt
@@ -5,9 +5,9 @@ import kotlin.math.max
 import kotlin.math.min
 
 public data class GmcBox(
-    public override val a: GeodeticMapCoordinates,
-    public override val b: GeodeticMapCoordinates,
-) : CoordinateBox<GeodeticMapCoordinates>
+    public val a: GeodeticMapCoordinates,
+    public val b: GeodeticMapCoordinates,
+)
 
 public fun GmcBox(
     latitudes: ClosedFloatingPointRange<Double>,
diff --git a/maps-kt-scheme/build.gradle.kts b/maps-kt-scheme/build.gradle.kts
index c16e55a..eb34d8e 100644
--- a/maps-kt-scheme/build.gradle.kts
+++ b/maps-kt-scheme/build.gradle.kts
@@ -25,7 +25,6 @@ kotlin {
     sourceSets {
         commonMain {
             dependencies {
-                api(projects.mapsKtCore)
                 api("io.github.microutils:kotlin-logging:2.1.23")
                 api(compose.foundation)
             }
diff --git a/maps-kt-scheme/src/commonMain/kotlin/center/sciprog/maps/scheme/SchemeCoordinates.kt b/maps-kt-scheme/src/commonMain/kotlin/center/sciprog/maps/scheme/SchemeCoordinates.kt
index 652ab63..6090ed8 100644
--- a/maps-kt-scheme/src/commonMain/kotlin/center/sciprog/maps/scheme/SchemeCoordinates.kt
+++ b/maps-kt-scheme/src/commonMain/kotlin/center/sciprog/maps/scheme/SchemeCoordinates.kt
@@ -1,17 +1,15 @@
 package center.sciprog.maps.scheme
 
-import center.sciprog.maps.coordinates.CoordinateBox
-import center.sciprog.maps.coordinates.Coordinates2D
 import kotlin.math.abs
 import kotlin.math.max
 import kotlin.math.min
 
-data class SchemeCoordinates(val x: Float, val y: Float) : Coordinates2D
+data class SchemeCoordinates(val x: Float, val y: Float)
 
 data class SchemeCoordinateBox(
-    override val a: SchemeCoordinates,
-    override val b: SchemeCoordinates,
-) : CoordinateBox<SchemeCoordinates>
+    val a: SchemeCoordinates,
+    val b: SchemeCoordinates,
+)
 
 val SchemeCoordinateBox.top get() = max(a.y, b.y)
 val SchemeCoordinateBox.bottom get() = min(a.y, b.y)
diff --git a/maps-kt-scheme/src/jvmMain/kotlin/center/sciprog/maps/scheme/SchemeFeature.kt b/maps-kt-scheme/src/commonMain/kotlin/center/sciprog/maps/scheme/SchemeFeature.kt
similarity index 100%
rename from maps-kt-scheme/src/jvmMain/kotlin/center/sciprog/maps/scheme/SchemeFeature.kt
rename to maps-kt-scheme/src/commonMain/kotlin/center/sciprog/maps/scheme/SchemeFeature.kt
diff --git a/maps-kt-scheme/src/jvmMain/kotlin/center/sciprog/maps/scheme/FeatureBuilder.kt b/maps-kt-scheme/src/commonMain/kotlin/center/sciprog/maps/scheme/SchemeFeatureBuilderImpl.kt
similarity index 86%
rename from maps-kt-scheme/src/jvmMain/kotlin/center/sciprog/maps/scheme/FeatureBuilder.kt
rename to maps-kt-scheme/src/commonMain/kotlin/center/sciprog/maps/scheme/SchemeFeatureBuilderImpl.kt
index 0f08595..0f76dcf 100644
--- a/maps-kt-scheme/src/jvmMain/kotlin/center/sciprog/maps/scheme/FeatureBuilder.kt
+++ b/maps-kt-scheme/src/commonMain/kotlin/center/sciprog/maps/scheme/SchemeFeatureBuilderImpl.kt
@@ -14,13 +14,15 @@ import center.sciprog.maps.scheme.SchemeFeature.Companion.defaultScaleRange
 
 typealias FeatureId = String
 
-interface FeatureBuilder {
+interface SchemeFeatureBuilder {
     fun addFeature(id: FeatureId?, feature: SchemeFeature): FeatureId
 
     fun build(): SnapshotStateMap<FeatureId, SchemeFeature>
 }
 
-internal class SchemeFeatureBuilder(initialFeatures: Map<FeatureId, SchemeFeature>) : FeatureBuilder {
+internal class SchemeFeatureBuilderImpl(
+    initialFeatures: Map<FeatureId, SchemeFeature>,
+) : SchemeFeatureBuilder {
 
     private val content: SnapshotStateMap<FeatureId, SchemeFeature> =
         mutableStateMapOf<FeatureId, SchemeFeature>().apply {
@@ -38,7 +40,7 @@ internal class SchemeFeatureBuilder(initialFeatures: Map<FeatureId, SchemeFeatur
     override fun build(): SnapshotStateMap<FeatureId, SchemeFeature> = content
 }
 
-fun FeatureBuilder.background(
+fun SchemeFeatureBuilder.background(
     painter: Painter,
     box: SchemeCoordinateBox,
     id: FeatureId? = null,
@@ -47,7 +49,7 @@ fun FeatureBuilder.background(
     SchemeBackgroundFeature(box, painter)
 )
 
-fun FeatureBuilder.background(
+fun SchemeFeatureBuilder.background(
     painter: Painter,
     size: Size = painter.intrinsicSize,
     offset: SchemeCoordinates = SchemeCoordinates(0f, 0f),
@@ -60,7 +62,7 @@ fun FeatureBuilder.background(
     return background(painter, box, id)
 }
 
-fun FeatureBuilder.circle(
+fun SchemeFeatureBuilder.circle(
     center: SchemeCoordinates,
     scaleRange: FloatRange = defaultScaleRange,
     size: Float = 5f,
@@ -70,7 +72,7 @@ fun FeatureBuilder.circle(
     id, SchemeCircleFeature(center, scaleRange, size, color)
 )
 
-fun FeatureBuilder.circle(
+fun SchemeFeatureBuilder.circle(
     centerCoordinates: Pair<Number, Number>,
     scaleRange: FloatRange = defaultScaleRange,
     size: Float = 5f,
@@ -80,14 +82,14 @@ fun FeatureBuilder.circle(
     id, SchemeCircleFeature(centerCoordinates.toCoordinates(), scaleRange, size, color)
 )
 
-fun FeatureBuilder.custom(
+fun SchemeFeatureBuilder.custom(
     position: Pair<Number, Number>,
     scaleRange: FloatRange = defaultScaleRange,
     id: FeatureId? = null,
     drawFeature: DrawScope.() -> Unit,
 ) = addFeature(id, SchemeDrawFeature(position.toCoordinates(), scaleRange, drawFeature))
 
-fun FeatureBuilder.line(
+fun SchemeFeatureBuilder.line(
     aCoordinates: Pair<Number, Number>,
     bCoordinates: Pair<Number, Number>,
     scaleRange: FloatRange = defaultScaleRange,
@@ -95,7 +97,7 @@ fun FeatureBuilder.line(
     id: FeatureId? = null,
 ) = addFeature(id, SchemeLineFeature(aCoordinates.toCoordinates(), bCoordinates.toCoordinates(), scaleRange, color))
 
-fun FeatureBuilder.text(
+fun SchemeFeatureBuilder.text(
     position: SchemeCoordinates,
     text: String,
     scaleRange: FloatRange = defaultScaleRange,
@@ -103,7 +105,7 @@ fun FeatureBuilder.text(
     id: FeatureId? = null,
 ) = addFeature(id, SchemeTextFeature(position, text, scaleRange, color))
 
-fun FeatureBuilder.text(
+fun SchemeFeatureBuilder.text(
     position: Pair<Number, Number>,
     text: String,
     scaleRange: FloatRange = defaultScaleRange,
@@ -112,7 +114,7 @@ fun FeatureBuilder.text(
 ) = addFeature(id, SchemeTextFeature(position.toCoordinates(), text, scaleRange, color))
 
 @Composable
-fun FeatureBuilder.image(
+fun SchemeFeatureBuilder.image(
     position: Pair<Number, Number>,
     image: ImageVector,
     size: DpSize = DpSize(20.dp, 20.dp),
@@ -120,12 +122,12 @@ fun FeatureBuilder.image(
     id: FeatureId? = null,
 ) = addFeature(id, SchemeVectorImageFeature(position.toCoordinates(), image, size, scaleRange))
 
-fun FeatureBuilder.group(
+fun SchemeFeatureBuilder.group(
     scaleRange: FloatRange = defaultScaleRange,
     id: FeatureId? = null,
-    builder: FeatureBuilder.() -> Unit,
+    builder: SchemeFeatureBuilder.() -> Unit,
 ): FeatureId {
-    val map = SchemeFeatureBuilder(emptyMap()).apply(builder).build()
+    val map = SchemeFeatureBuilderImpl(emptyMap()).apply(builder).build()
     val feature = SchemeFeatureGroup(map, scaleRange)
     return addFeature(id, feature)
 }
\ No newline at end of file
diff --git a/maps-kt-scheme/src/jvmMain/kotlin/center/sciprog/maps/scheme/SchemeView.kt b/maps-kt-scheme/src/jvmMain/kotlin/center/sciprog/maps/scheme/SchemeView.kt
index a05f56a..b7ea5d3 100644
--- a/maps-kt-scheme/src/jvmMain/kotlin/center/sciprog/maps/scheme/SchemeView.kt
+++ b/maps-kt-scheme/src/jvmMain/kotlin/center/sciprog/maps/scheme/SchemeView.kt
@@ -249,9 +249,9 @@ fun SchemeView(
     features: Map<FeatureId, SchemeFeature> = emptyMap(),
     config: SchemeViewConfig = SchemeViewConfig(),
     modifier: Modifier = Modifier.fillMaxSize(),
-    buildFeatures: @Composable (FeatureBuilder.() -> Unit) = {},
+    buildFeatures: @Composable (SchemeFeatureBuilder.() -> Unit) = {},
 ) {
-    val featuresBuilder = SchemeFeatureBuilder(features)
+    val featuresBuilder = SchemeFeatureBuilderImpl(features)
     featuresBuilder.buildFeatures()
     SchemeView(
         { initialViewPoint },