From 1d48ce144f30a77c3e033dcf44a14784cc8fd426 Mon Sep 17 00:00:00 2001
From: londre7 <mixervrot@yahoo.com>
Date: Fri, 20 Mar 2026 20:28:13 +0300
Subject: [PATCH] Use the compass in landscape

---
 .../core/data/injection/MainContainer.kt      |  4 +-
 .../core/data/repository/SensorsRepo.kt       | 40 ++++++++++++++++++-
 .../look4sat/feature/radar/RadarScreen.kt     |  2 +-
 3 files changed, 43 insertions(+), 3 deletions(-)

diff --git a/core/data/src/main/java/com/rtbishop/look4sat/core/data/injection/MainContainer.kt b/core/data/src/main/java/com/rtbishop/look4sat/core/data/injection/MainContainer.kt
index 1e87ee65..1b15b246 100644
--- a/core/data/src/main/java/com/rtbishop/look4sat/core/data/injection/MainContainer.kt
+++ b/core/data/src/main/java/com/rtbishop/look4sat/core/data/injection/MainContainer.kt
@@ -5,6 +5,7 @@ import android.content.Context
 import android.hardware.Sensor
 import android.hardware.SensorManager
 import android.location.LocationManager
+import android.view.WindowManager
 import androidx.room.Room
 import com.rtbishop.look4sat.core.data.database.Look4SatDb
 import com.rtbishop.look4sat.core.data.framework.BluetoothReporter
@@ -64,7 +65,8 @@ class MainContainer(private val context: Context) : IMainContainer {
     override fun provideSensorsRepo(): ISensorsRepo {
         val manager = context.getSystemService(Context.SENSOR_SERVICE) as SensorManager
         val sensor = manager.getDefaultSensor(Sensor.TYPE_ROTATION_VECTOR)
-        return SensorsRepo(manager, sensor)
+        val window = context.getSystemService(Context.WINDOW_SERVICE) as WindowManager
+        return SensorsRepo(manager,sensor,window)
     }
 
     private fun provideDatabaseRepo(): IDatabaseRepo {
diff --git a/core/data/src/main/java/com/rtbishop/look4sat/core/data/repository/SensorsRepo.kt b/core/data/src/main/java/com/rtbishop/look4sat/core/data/repository/SensorsRepo.kt
index 33033c2f..a0fbbb00 100644
--- a/core/data/src/main/java/com/rtbishop/look4sat/core/data/repository/SensorsRepo.kt
+++ b/core/data/src/main/java/com/rtbishop/look4sat/core/data/repository/SensorsRepo.kt
@@ -22,6 +22,8 @@ import android.hardware.Sensor
 import android.hardware.SensorEvent
 import android.hardware.SensorEventListener
 import android.hardware.SensorManager
+import android.view.Surface
+import android.view.WindowManager
 import com.rtbishop.look4sat.core.domain.predict.GeoPos
 import com.rtbishop.look4sat.core.domain.predict.RAD2DEG
 import com.rtbishop.look4sat.core.domain.repository.ISensorsRepo
@@ -29,7 +31,11 @@ import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlin.math.round
 
-class SensorsRepo(private val sensorManager: SensorManager, private val sensor: Sensor?) :
+class SensorsRepo(
+    private val sensorManager: SensorManager,
+    private val sensor: Sensor?,
+    private val windowManager: WindowManager
+) :
     SensorEventListener, ISensorsRepo {
 
     private val _orientation = MutableStateFlow(Pair(0f, 0f))
@@ -61,8 +67,40 @@ class SensorsRepo(private val sensorManager: SensorManager, private val sensor:
         else -> {}
     }
 
+    private fun getDisplayRotation(): Int {
+        return try {
+            @Suppress("DEPRECATION")
+            windowManager.defaultDisplay.rotation
+        } catch (e: Exception) {
+            Surface.ROTATION_0
+        }
+    }
+
+    private fun transformRotationMatrix(rotationMatrix: FloatArray, rotation: Int) {
+        val tempMatrix = FloatArray(9)
+        when (rotation) {
+            Surface.ROTATION_0 -> {
+                SensorManager.remapCoordinateSystem(rotationMatrix, SensorManager.AXIS_X, SensorManager.AXIS_Y, tempMatrix)
+                System.arraycopy(tempMatrix, 0, rotationMatrix, 0, 9)
+            }
+            Surface.ROTATION_90 -> {
+                SensorManager.remapCoordinateSystem(rotationMatrix, SensorManager.AXIS_Y, SensorManager.AXIS_MINUS_X, tempMatrix)
+                SensorManager.remapCoordinateSystem(tempMatrix, SensorManager.AXIS_MINUS_X, SensorManager.AXIS_Y, rotationMatrix)
+            }
+            Surface.ROTATION_180 -> {
+                SensorManager.remapCoordinateSystem(rotationMatrix, SensorManager.AXIS_MINUS_X, SensorManager.AXIS_MINUS_Y, tempMatrix)
+                System.arraycopy(tempMatrix, 0, rotationMatrix, 0, 9)
+            }
+            Surface.ROTATION_270 -> {
+                SensorManager.remapCoordinateSystem(rotationMatrix, SensorManager.AXIS_MINUS_Y, SensorManager.AXIS_X, tempMatrix)
+                SensorManager.remapCoordinateSystem(tempMatrix, SensorManager.AXIS_MINUS_X, SensorManager.AXIS_Y, rotationMatrix)
+            }
+        }
+    }
+
     private fun updateOrientation(rotationVector: FloatArray) {
         SensorManager.getRotationMatrixFromVector(rotationMatrix, rotationVector)
+        transformRotationMatrix(rotationMatrix, getDisplayRotation())
         SensorManager.getOrientation(rotationMatrix, orientationValues)
         val azimuth = (orientationValues[0] * RAD2DEG).toFloat()
         val pitch = (orientationValues[1] * RAD2DEG).toFloat() // roll [2]
diff --git a/feature/radar/src/main/java/com/rtbishop/look4sat/feature/radar/RadarScreen.kt b/feature/radar/src/main/java/com/rtbishop/look4sat/feature/radar/RadarScreen.kt
index 39f14d7b..640f36f0 100644
--- a/feature/radar/src/main/java/com/rtbishop/look4sat/feature/radar/RadarScreen.kt
+++ b/feature/radar/src/main/java/com/rtbishop/look4sat/feature/radar/RadarScreen.kt
@@ -229,7 +229,7 @@ private fun RadarScreen(uiState: RadarState, navigateUp: () -> Unit) {
                                 items = uiState.satTrack,
                                 azimElev = uiState.orientationValues,
                                 shouldShowSweep = uiState.shouldShowSweep,
-                                shouldUseCompass = false,
+                                shouldUseCompass = uiState.shouldUseCompass,
                                 modifier = Modifier.align(Alignment.Center)
                             )
                             Column(