From 3e2c8d2db2b86acd657dec12e9fa0a8963a71051 Mon Sep 17 00:00:00 2001
From: "a.kalmakhanov" <a.kalmakhanov@kazdream.kz>
Date: Wed, 27 Jul 2022 17:48:59 +0600
Subject: [PATCH] Added new feature to draw points on the map

---
 demo/maps/src/jvmMain/kotlin/Main.kt                | 13 +++++++++++++
 .../center/sciprog/maps/compose/MapFeature.kt       | 13 +++++++++++++
 .../sciprog/maps/compose/MapFeatureBuilder.kt       | 10 ++++++++++
 .../center/sciprog/maps/compose/MapViewJvm.kt       |  9 +++++++++
 4 files changed, 45 insertions(+)

diff --git a/demo/maps/src/jvmMain/kotlin/Main.kt b/demo/maps/src/jvmMain/kotlin/Main.kt
index 574dc0e..45c56e7 100644
--- a/demo/maps/src/jvmMain/kotlin/Main.kt
+++ b/demo/maps/src/jvmMain/kotlin/Main.kt
@@ -6,6 +6,7 @@ import androidx.compose.material.icons.filled.Home
 import androidx.compose.runtime.*
 import androidx.compose.ui.geometry.Offset
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.PointMode
 import androidx.compose.ui.window.Window
 import androidx.compose.ui.window.application
 import center.sciprog.maps.compose.*
@@ -62,6 +63,18 @@ fun App() {
 
             image(pointOne, Icons.Filled.Home)
 
+            points(
+                points = listOf(
+                    55.742465 to 37.615812,
+                    55.742713 to 37.616370,
+                    55.742815 to 37.616659,
+                    55.742320 to 37.617132,
+                    55.742086 to 37.616566,
+                    55.741715 to 37.616716
+                ),
+                pointMode = PointMode.Polygon
+            )
+
             //remember feature Id
             val circleId: FeatureId = circle(
                 centerCoordinates = pointTwo,
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 2180674..202e30b 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
@@ -3,6 +3,7 @@ package center.sciprog.maps.compose
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.ImageBitmap
+import androidx.compose.ui.graphics.PointMode
 import androidx.compose.ui.graphics.drawscope.DrawScope
 import androidx.compose.ui.graphics.painter.Painter
 import androidx.compose.ui.graphics.vector.ImageVector
@@ -48,6 +49,18 @@ public class MapDrawFeature(
     }
 }
 
+public class MapPointsFeature(
+    public val points: List<GeodeticMapCoordinates>,
+    override val zoomRange: IntRange = defaultZoomRange,
+    public val stroke: Float = 2f,
+    public val color: Color = Color.Red,
+    public val pointMode: PointMode = PointMode.Points
+) : MapFeature {
+    override fun getBoundingBox(zoom: Int): GmcBox {
+        return GmcBox(points.first(), points.last())
+    }
+}
+
 public class MapCircleFeature(
     public val center: GeodeticMapCoordinates,
     override val zoomRange: IntRange = defaultZoomRange,
diff --git a/maps-kt-compose/src/commonMain/kotlin/center/sciprog/maps/compose/MapFeatureBuilder.kt b/maps-kt-compose/src/commonMain/kotlin/center/sciprog/maps/compose/MapFeatureBuilder.kt
index 55f18ee..e916f12 100644
--- a/maps-kt-compose/src/commonMain/kotlin/center/sciprog/maps/compose/MapFeatureBuilder.kt
+++ b/maps-kt-compose/src/commonMain/kotlin/center/sciprog/maps/compose/MapFeatureBuilder.kt
@@ -4,6 +4,7 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.mutableStateMapOf
 import androidx.compose.runtime.snapshots.SnapshotStateMap
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.PointMode
 import androidx.compose.ui.graphics.drawscope.DrawScope
 import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.unit.DpSize
@@ -116,6 +117,15 @@ public fun MapFeatureBuilder.arc(
     )
 )
 
+public fun MapFeatureBuilder.points(
+    points: List<Pair<Double, Double>>,
+    zoomRange: IntRange = defaultZoomRange,
+    stroke: Float = 2f,
+    color: Color = Color.Red,
+    pointMode: PointMode = PointMode.Points,
+    id: FeatureId? = null
+): FeatureId = addFeature(id, MapPointsFeature(points.map { it.toCoordinates() }, zoomRange, stroke, color, pointMode))
+
 @Composable
 public fun MapFeatureBuilder.image(
     position: Pair<Double, Double>,
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 d12d568..e296900 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
@@ -275,6 +275,15 @@ public actual fun MapView(
                         drawFeature(zoom, it)
                     }
                 }
+                is MapPointsFeature -> {
+                    val points = feature.points.map { it.toOffset() }
+                    drawPoints(
+                        points = points,
+                        color = feature.color,
+                        strokeWidth = feature.stroke,
+                        pointMode = feature.pointMode
+                    )
+                }
                 else -> {
                     logger.error { "Unrecognized feature type: ${feature::class}" }
                 }
-- 
2.34.1