Node / meshtastic / Meshtastic-Android / files / androidApp / src / google / kotlin / org / meshtastic / app / map / component / NodeClusterMarkers.kt

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T8b949e/*

* Copyright (c) 2026 Meshtastic LLC

*

* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation, either version 3 of the License, or

* (at your option) any later version.

*

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

*

* You should have received a copy of the GNU General Public License

* along with this program. If not, see <https://www.gnu.org/licenses/>.

*/

Tff7b72package T7ee787org.meshtastic.app.map.component

Tff7b72import T7ee787android.content.Context

Tff7b72import T7ee787androidx.compose.runtime.Composable

Tff7b72import T7ee787androidx.compose.runtime.DisposableEffect

Tff7b72import T7ee787androidx.compose.runtime.LaunchedEffect

Tff7b72import T7ee787androidx.compose.runtime.SideEffect

Tff7b72import T7ee787androidx.compose.runtime.key

Tff7b72import T7ee787androidx.compose.runtime.mutableStateMapOf

Tff7b72import T7ee787androidx.compose.runtime.mutableStateOf

Tff7b72import T7ee787androidx.compose.runtime.remember

Tff7b72import T7ee787androidx.compose.ui.graphics.Color

Tff7b72import T7ee787androidx.compose.ui.platform.LocalContext

Tff7b72import T7ee787com.google.android.gms.maps.GoogleMap

Tff7b72import T7ee787com.google.android.gms.maps.model.BitmapDescriptor

Tff7b72import T7ee787com.google.android.gms.maps.model.Marker

Tff7b72import T7ee787com.google.android.gms.maps.model.MarkerOptions

Tff7b72import T7ee787com.google.maps.android.clustering.Cluster

Tff7b72import T7ee787com.google.maps.android.clustering.ClusterManager

Tff7b72import T7ee787com.google.maps.android.clustering.view.DefaultClusterRenderer

Tff7b72import T7ee787com.google.maps.android.compose.Circle

Tff7b72import T7ee787com.google.maps.android.compose.MapEffect

Tff7b72import T7ee787com.google.maps.android.compose.MapsComposeExperimentalApi

Tff7b72import T7ee787com.google.maps.android.compose.clustering.Clustering

Tff7b72import T7ee787com.google.maps.android.compose.clustering.rememberClusterManager

Tff7b72import T7ee787com.google.maps.android.compose.rememberComposeBitmapDescriptor

Tff7b72import T7ee787org.meshtastic.app.map.model.NodeClusterItem

Tff7b72import T7ee787org.meshtastic.feature.map.BaseMapViewModel

Tff7b72private Tff7b72const Tff7b72val Te6edf3MIN_CLUSTER_SIZE Tff7b72= T79c0ff1T79c0ff0

T8b949e/**

* Renders node markers with clustering.

*

* Marker bitmaps are generated **in the maps compose scope** via [rememberComposeBitmapDescriptor], which composes each

* chip in a `ComposeView` parented to the live host view (a real, attached view that has valid `ViewTreeLifecycleOwner`

* / `SavedStateRegistryOwner`) and renders it synchronously to a [BitmapDescriptor].

*

* This deliberately avoids the clustering library's `clusterItemContent` path: that renderer

* ([com.google.maps.android.compose.clustering.ComposeUiClusterRenderer]) composes each item in a *detached*

* `ComposeView` that only carries a fake lifecycle owner and no `SavedStateRegistryOwner`, so it crashes when the

* surrounding Navigation 3 / popup hierarchy lacks those owners (the top Crashlytics FATAL). A custom

* [DefaultClusterRenderer] subclass assigns the pre-baked bitmaps instead, keeping native info windows (title/snippet

* from [NodeClusterItem]) and click interactions intact.

*/

Tf0883e@OptInTb4b4b4(Te6edf3MapsComposeExperimentalApiTff7b72::Te6edf3classTb4b4b4)

Tf0883e@SuppressTb4b4b4(Ta5d6ff"Ta5d6ffNestedBlockDepthTa5d6ff"Tb4b4b4)

Tf0883e@Composable

Tff7b72fun Td2a8ffNodeClusterMarkersTb4b4b4(

Te6edf3nodeClusterItemsTb4b4b4: Te6edf3ListTff7b72<Te6edf3NodeClusterItemTff7b72>Tb4b4b4,

Te6edf3mapFilterStateTb4b4b4: Te6edf3BaseMapViewModelTb4b4b4.Te6edf3MapFilterStateTb4b4b4,

Te6edf3navigateToNodeDetailsTb4b4b4: Tb4b4b4(Tffa657IntTb4b4b4) Tff7b72-Tff7b72> Tffa657UnitTb4b4b4,

Te6edf3onClusterClickTb4b4b4: Tb4b4b4(Te6edf3ClusterTff7b72<Te6edf3NodeClusterItemTff7b72>Tb4b4b4) Tff7b72-Tff7b72> Tffa657BooleanTb4b4b4,

Tb4b4b4) Tb4b4b4{

Tff7b72val Te6edf3context Tff7b72= Te6edf3LocalContextTb4b4b4.Te6edf3current

Tff7b72val Te6edf3clusterManager Tff7b72= Te6edf3rememberClusterManagerTff7b72<Te6edf3NodeClusterItemTff7b72>Tb4b4b4(Tb4b4b4)

T8b949e// Bake each node's marker icon in-scope. Keyed by node so a bitmap is only re-rendered when that node

T8b949e// actually changes. The descriptors are stashed in a snapshot map the renderer reads at render time.

Tff7b72val Te6edf3iconDescriptors Tff7b72= Te6edf3remember Tb4b4b4{ Te6edf3mutableStateMapOfTff7b72<Tffa657IntTb4b4b4, Te6edf3BitmapDescriptorTff7b72>Tb4b4b4(Tb4b4b4) Tb4b4b4}

Te6edf3nodeClusterItemsTb4b4b4.Te6edf3forEach Tb4b4b4{ Te6edf3item Tff7b72-Tff7b72>

Te6edf3keyTb4b4b4(Te6edf3itemTb4b4b4.Te6edf3nodeTb4b4b4.Te6edf3numTb4b4b4) Tb4b4b4{

Tff7b72val Te6edf3descriptor Tff7b72= Te6edf3rememberComposeBitmapDescriptorTb4b4b4(Te6edf3itemTb4b4b4.Te6edf3nodeTb4b4b4) Tb4b4b4{ Te6edf3PulsingNodeChipTb4b4b4(Te6edf3node Tff7b72= Te6edf3itemTb4b4b4.Te6edf3nodeTb4b4b4) Tb4b4b4}

Te6edf3DisposableEffectTb4b4b4(Te6edf3descriptorTb4b4b4) Tb4b4b4{

Te6edf3iconDescriptorsTff7b72[Te6edf3itemTb4b4b4.Te6edf3nodeTb4b4b4.Te6edf3numTff7b72] Tff7b72= Te6edf3descriptor

Te6edf3onDispose Tb4b4b4{ Te6edf3iconDescriptorsTb4b4b4.Te6edf3removeTb4b4b4(Te6edf3itemTb4b4b4.Te6edf3nodeTb4b4b4.Te6edf3numTb4b4b4) Tb4b4b4}

Tb4b4b4}

Tb4b4b4}

Tb4b4b4}

Tff7b72if Tb4b4b4(Te6edf3clusterManager Tff7b72!Tff7b72= Tff7b72nullTb4b4b4) Tb4b4b4{

Tff7b72val Te6edf3rendererState Tff7b72= Te6edf3remember Tb4b4b4{ Te6edf3mutableStateOfTff7b72<Te6edf3NodeClusterRenderer?Tff7b72>Tb4b4b4(Tff7b72nullTb4b4b4) Tb4b4b4}

T8b949e// The renderer needs the GoogleMap instance, only available inside the map scope.

Te6edf3MapEffectTb4b4b4(Te6edf3clusterManagerTb4b4b4) Tb4b4b4{ Te6edf3map Tff7b72-Tff7b72>

Tff7b72val Te6edf3renderer Tff7b72= Te6edf3NodeClusterRendererTb4b4b4(Te6edf3contextTb4b4b4, Te6edf3mapTb4b4b4, Te6edf3clusterManagerTb4b4b4) Tb4b4b4{ Te6edf3iconDescriptorsTff7b72[Tffa657itTff7b72] Tb4b4b4}

Te6edf3clusterManagerTb4b4b4.Te6edf3renderer Tff7b72= Te6edf3renderer

Te6edf3rendererStateTb4b4b4.Te6edf3value Tff7b72= Te6edf3renderer

Tb4b4b4}

T8b949e// Keep listeners current — the lambdas can change across recompositions.

Te6edf3SideEffect Tb4b4b4{

Te6edf3clusterManagerTb4b4b4.Te6edf3setOnClusterClickListener Tb4b4b4{ Te6edf3cluster Tff7b72-Tff7b72> Te6edf3onClusterClickTb4b4b4(Te6edf3clusterTb4b4b4) Tb4b4b4}

Te6edf3clusterManagerTb4b4b4.Te6edf3setOnClusterItemInfoWindowClickListener Tb4b4b4{ Te6edf3item Tff7b72-Tff7b72> Te6edf3navigateToNodeDetailsTb4b4b4(Te6edf3itemTb4b4b4.Te6edf3nodeTb4b4b4.Te6edf3numTb4b4b4) Tb4b4b4}

Tb4b4b4}

T8b949e// Re-cluster once the renderer is attached and freshly-baked icons arrive, so markers pick up the bitmaps

T8b949e// even when the cluster manager became available after the icons were rendered.

Tff7b72val Te6edf3renderer Tff7b72= Te6edf3rendererStateTb4b4b4.Te6edf3value

Te6edf3LaunchedEffectTb4b4b4(Te6edf3rendererTb4b4b4, Te6edf3iconDescriptorsTb4b4b4.Te6edf3sizeTb4b4b4) Tb4b4b4{ Tff7b72if Tb4b4b4(Te6edf3renderer Tff7b72!Tff7b72= Tff7b72nullTb4b4b4) Te6edf3clusterManagerTb4b4b4.Te6edf3clusterTb4b4b4(Tb4b4b4) Tb4b4b4}

Te6edf3ClusteringTb4b4b4(Te6edf3items Tff7b72= Te6edf3nodeClusterItemsTb4b4b4, Te6edf3clusterManager Tff7b72= Te6edf3clusterManagerTb4b4b4)

T8b949e// Precision circles for the currently-unclustered items (the renderer tracks them as the zoom changes).

Tff7b72if Tb4b4b4(Te6edf3mapFilterStateTb4b4b4.Te6edf3showPrecisionCircleTb4b4b4) Tb4b4b4{

Te6edf3rendererTff7b72?.Te6edf3unclusteredItemsTff7b72?.Te6edf3valueTff7b72?.Te6edf3forEach Tb4b4b4{ Te6edf3item Tff7b72-Tff7b72>

Te6edf3itemTb4b4b4.Te6edf3getPrecisionMetersTb4b4b4(Tb4b4b4)Tff7b72?.Te6edf3let Tb4b4b4{ Te6edf3precisionMeters Tff7b72-Tff7b72>

Tff7b72if Tb4b4b4(Te6edf3precisionMeters Tff7b72> T79c0ff0Tb4b4b4) Tb4b4b4{

Te6edf3CircleTb4b4b4(

Te6edf3center Tff7b72= Te6edf3itemTb4b4b4.Te6edf3positionTb4b4b4,

Te6edf3radius Tff7b72= Te6edf3precisionMetersTb4b4b4,

Te6edf3fillColor Tff7b72= Te6edf3ColorTb4b4b4(Te6edf3itemTb4b4b4.Te6edf3nodeTb4b4b4.Te6edf3colorsTb4b4b4.Te6edf3secondTb4b4b4)Tb4b4b4.Te6edf3copyTb4b4b4(Te6edf3alpha Tff7b72= T79c0ff0.2fTb4b4b4)Tb4b4b4,

Te6edf3strokeColor Tff7b72= Te6edf3ColorTb4b4b4(Te6edf3itemTb4b4b4.Te6edf3nodeTb4b4b4.Te6edf3colorsTb4b4b4.Te6edf3secondTb4b4b4)Tb4b4b4,

Te6edf3strokeWidth Tff7b72= T79c0ff2fTb4b4b4,

Te6edf3zIndex Tff7b72= T79c0ff0fTb4b4b4,

Tb4b4b4)

Tb4b4b4}

Tb4b4b4}

Tb4b4b4}

Tb4b4b4}

Tb4b4b4}

Tb4b4b4}

T8b949e/**

* [DefaultClusterRenderer] that assigns the pre-baked [BitmapDescriptor]s (rendered in the maps compose scope) to

* non-clustered item markers, and exposes the set of currently-unclustered items so the caller can decorate them (e.g.

* precision circles). Cluster bubbles keep the library's default rendering.

*/

Tff7b72private Tff7b72class T56d364NodeClusterRendererTb4b4b4(

Te6edf3contextTb4b4b4: Te6edf3ContextTb4b4b4,

Te6edf3mapTb4b4b4: Te6edf3GoogleMapTb4b4b4,

Te6edf3clusterManagerTb4b4b4: Te6edf3ClusterManagerTff7b72<Te6edf3NodeClusterItemTff7b72>Tb4b4b4,

Tff7b72private Tff7b72val Te6edf3iconProviderTb4b4b4: Tb4b4b4(Tffa657IntTb4b4b4) Tff7b72-Tff7b72> Te6edf3BitmapDescriptor?Tb4b4b4,

Tb4b4b4) Tb4b4b4: Te6edf3DefaultClusterRendererTff7b72<Te6edf3NodeClusterItemTff7b72>Tb4b4b4(Te6edf3contextTb4b4b4, Te6edf3mapTb4b4b4, Te6edf3clusterManagerTb4b4b4) Tb4b4b4{

Tff7b72val Te6edf3unclusteredItems Tff7b72= Te6edf3mutableStateOfTff7b72<Te6edf3SetTff7b72<Te6edf3NodeClusterItemTff7b72>Tff7b72>Tb4b4b4(Te6edf3emptySetTb4b4b4(Tb4b4b4)Tb4b4b4)

Tff7b72init Tb4b4b4{

Te6edf3minClusterSize Tff7b72= Te6edf3MIN_CLUSTER_SIZE

Tb4b4b4}

Tff7b72override Tff7b72fun Td2a8ffonClustersChangedTb4b4b4(Te6edf3clustersTb4b4b4: Te6edf3SetTff7b72<Te6edf3ClusterTff7b72<Te6edf3NodeClusterItemTff7b72>Tff7b72>Tb4b4b4) Tb4b4b4{

Tff7b72superTb4b4b4.Te6edf3onClustersChangedTb4b4b4(Te6edf3clustersTb4b4b4)

Te6edf3unclusteredItemsTb4b4b4.Te6edf3value Tff7b72= Te6edf3clustersTb4b4b4.Te6edf3filterNot Tb4b4b4{ Te6edf3shouldRenderAsClusterTb4b4b4(Tffa657itTb4b4b4) Tb4b4b4}Tb4b4b4.Te6edf3flatMap Tb4b4b4{ Tffa657itTb4b4b4.Te6edf3items Tb4b4b4}Tb4b4b4.Te6edf3toSetTb4b4b4(Tb4b4b4)

Tb4b4b4}

Tff7b72override Tff7b72fun Td2a8ffonBeforeClusterItemRenderedTb4b4b4(Te6edf3itemTb4b4b4: Te6edf3NodeClusterItemTb4b4b4, Te6edf3markerOptionsTb4b4b4: Te6edf3MarkerOptionsTb4b4b4) Tb4b4b4{

T8b949e// super sets title/snippet from the ClusterItem, which drives the native info window.

Tff7b72superTb4b4b4.Te6edf3onBeforeClusterItemRenderedTb4b4b4(Te6edf3itemTb4b4b4, Te6edf3markerOptionsTb4b4b4)

Te6edf3iconProviderTb4b4b4(Te6edf3itemTb4b4b4.Te6edf3nodeTb4b4b4.Te6edf3numTb4b4b4)Tff7b72?.Te6edf3let Tb4b4b4{ Te6edf3markerOptionsTb4b4b4.Te6edf3iconTb4b4b4(Tffa657itTb4b4b4) Tb4b4b4}

Te6edf3markerOptionsTb4b4b4.Te6edf3zIndexTb4b4b4(Te6edf3itemTb4b4b4.Te6edf3getZIndexTb4b4b4(Tb4b4b4)Tb4b4b4)

Tb4b4b4}

Tff7b72override Tff7b72fun Td2a8ffonClusterItemUpdatedTb4b4b4(Te6edf3itemTb4b4b4: Te6edf3NodeClusterItemTb4b4b4, Te6edf3markerTb4b4b4: Te6edf3MarkerTb4b4b4) Tb4b4b4{

T8b949e// super keeps title/snippet (and the open info window) in sync.

Tff7b72superTb4b4b4.Te6edf3onClusterItemUpdatedTb4b4b4(Te6edf3itemTb4b4b4, Te6edf3markerTb4b4b4)

Te6edf3iconProviderTb4b4b4(Te6edf3itemTb4b4b4.Te6edf3nodeTb4b4b4.Te6edf3numTb4b4b4)Tff7b72?.Te6edf3let Tb4b4b4{ Te6edf3markerTb4b4b4.Te6edf3setIconTb4b4b4(Tffa657itTb4b4b4) Tb4b4b4}

Te6edf3markerTb4b4b4.Te6edf3zIndex Tff7b72= Te6edf3itemTb4b4b4.Te6edf3getZIndexTb4b4b4(Tb4b4b4)

Tb4b4b4}

Tb4b4b4}