commit 3f6e41440295b9e662a88accdc5c1905d037a175
Author: Fabio Mazza <fab4mazz@gmail.com>
Date:   Mon Oct 5 14:25:43 2026 +0200

    Add button to center the map on open stop or vehicle

diff --git a/app/src/main/java/it/reyboz/bustorino/fragments/GeneralMapLibreFragment.kt b/app/src/main/java/it/reyboz/bustorino/fragments/GeneralMapLibreFragment.kt
index 915b4f3..1b760ec 100644
--- a/app/src/main/java/it/reyboz/bustorino/fragments/GeneralMapLibreFragment.kt
+++ b/app/src/main/java/it/reyboz/bustorino/fragments/GeneralMapLibreFragment.kt
@@ -76,6 +76,7 @@ import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import org.maplibre.android.MapLibre
 import org.maplibre.android.camera.CameraPosition
+import org.maplibre.android.camera.CameraUpdateFactory
 import org.maplibre.android.geometry.LatLng
 import org.maplibre.android.location.LocationComponent
 import org.maplibre.android.location.LocationComponentActivationOptions
@@ -100,6 +101,7 @@ import org.maplibre.android.style.sources.GeoJsonSource
 import org.maplibre.geojson.Feature
 import org.maplibre.geojson.FeatureCollection
 import org.maplibre.geojson.Point
+import kotlin.math.absoluteValue
 import kotlin.time.Duration.Companion.milliseconds
 
 abstract class GeneralMapLibreFragment: ScreenBaseFragment(), OnMapReadyCallback {
@@ -181,6 +183,7 @@ abstract class GeneralMapLibreFragment: ScreenBaseFragment(), OnMapReadyCallback
     protected lateinit var vehicleIcon: ImageView
     protected lateinit var warningTripIcon: ImageView
     private lateinit var loadingTripIcon: ImageView
+    protected lateinit var centerBottomImage: ImageView
 
     protected var lastLocation : Location? = null
 
@@ -282,7 +285,8 @@ abstract class GeneralMapLibreFragment: ScreenBaseFragment(), OnMapReadyCallback
         linesBottomTextView.text = getString(R.string.lines_fill, "")
         bottomSheetBehavior = BottomSheetBehavior.from(bottomSheet)
         bottomSheetBehavior.state = BottomSheetBehavior.STATE_HIDDEN
-
+        centerBottomImage = view.findViewById(R.id.centerBottomLayoutImage)
+        centerBottomImage.setOnClickListener(){ centerOnOpenItemInBottomSheet() }
         //set onclick listener for warning trip icon
         warningTripIcon.setOnClickListener {
             showToastMessage(R.string.no_trip_info_warning, true)
@@ -1218,6 +1222,44 @@ abstract class GeneralMapLibreFragment: ScreenBaseFragment(), OnMapReadyCallback
         }
     }
 
+    protected fun centerOnOpenItemInBottomSheet(){
+        var latlng: LatLng? = null
+        var found = 0
+        if(shownStopInBottomSheet!=null){
+            val stop = shownStopInBottomSheet!!
+            latlng = LatLng(stop.latitude!!, stop.longitude!!)
+            found = 1
+        }else if(vehShowing!=null){
+            val update = updatesByVehDict.getOrDefault(vehShowing!!, null)
+            update?.let{
+                latlng = LatLng(it.posUpdate.latitude, it.posUpdate.longitude)
+                found = 2
+            }
+
+        }
+        if (latlng!=null) {
+            map?.apply{
+                //complicated part: make toast if the position is the same
+                //val newBbox = projection.visibleRegion.latLngBounds
+                val ll = cameraPosition.target
+                if(ll!=null && (ll.latitude - latlng.latitude).absoluteValue < 1e-4 && (ll.longitude-latlng.longitude).absoluteValue < 1e-4){
+                    Toast.makeText(requireContext(),
+                        if(found==1) R.string.already_center_bottom_sheet_stop else R.string.already_center_bottom_sheet_vehicle,
+                        Toast.LENGTH_SHORT
+                        ).show()
+                } else {
+                    animateCamera(
+                        CameraUpdateFactory.newLatLng(latlng),
+                        700
+                    )
+                }
+            }
+        }else {
+            Log.d(DEBUG_TAG, "Asked to center on open thing in bottom sheet but no position found")
+        }
+
+    }
+
 
 
 
diff --git a/app/src/main/java/it/reyboz/bustorino/fragments/LinesDetailFragment.kt b/app/src/main/java/it/reyboz/bustorino/fragments/LinesDetailFragment.kt
index 74e0d9f..ba55d31 100644
--- a/app/src/main/java/it/reyboz/bustorino/fragments/LinesDetailFragment.kt
+++ b/app/src/main/java/it/reyboz/bustorino/fragments/LinesDetailFragment.kt
@@ -236,7 +236,7 @@ class LinesDetailFragment() : GeneralMapLibreFragment() {
         mapView = rootView.findViewById(R.id.lineMap)
         mapView!!.getMapAsync(this)
 
-
+        //TODO: Unify in GeneralMapLibreFragment
         // Setup close button
         rootView.findViewById<View>(R.id.btnClose).setOnClickListener {
             hideStopOrBusBottomSheet()
diff --git a/app/src/main/res/drawable/bottom_sheet_background.xml b/app/src/main/res/drawable/bottom_sheet_background.xml
index 4319073..fede6dd 100644
--- a/app/src/main/res/drawable/bottom_sheet_background.xml
+++ b/app/src/main/res/drawable/bottom_sheet_background.xml
@@ -2,6 +2,6 @@
 <shape xmlns:android="http://schemas.android.com/apk/res/android">
     <solid android:color="?android:colorBackground" />
     <corners
-        android:topLeftRadius="14sp"
-        android:topRightRadius="14sp" />
+        android:topLeftRadius="16sp"
+        android:topRightRadius="16sp" />
 </shape>
\ No newline at end of file
diff --git a/app/src/main/res/drawable/ic_map_pin.xml b/app/src/main/res/drawable/ic_map_pin.xml
new file mode 100644
index 0000000..cfac477
--- /dev/null
+++ b/app/src/main/res/drawable/ic_map_pin.xml
@@ -0,0 +1,12 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+  <path
+      android:pathData="m12,17l1,-2V9.858c1.721,-0.447 3,-2 3,-3.858c0,-2.206 -1.794,-4 -4,-4S8,3.794 8,6c0,1.858 1.279,3.411 3,3.858V15z"
+      android:fillColor="#000"/>
+  <path
+      android:pathData="m16.267,10.563l-0.533,1.928C18.325,13.207 20,14.584 20,16c0,1.892 -3.285,4 -8,4s-8,-2.108 -8,-4c0,-1.416 1.675,-2.793 4.267,-3.51l-0.533,-1.928C4.197,11.54 2,13.623 2,16c0,3.364 4.393,6 10,6s10,-2.636 10,-6c0,-2.377 -2.197,-4.46 -5.733,-5.437"
+      android:fillColor="#000"/>
+</vector>
diff --git a/app/src/main/res/layout/include_map_bottom_sheet.xml b/app/src/main/res/layout/include_map_bottom_sheet.xml
index 63ffb40..40145a9 100644
--- a/app/src/main/res/layout/include_map_bottom_sheet.xml
+++ b/app/src/main/res/layout/include_map_bottom_sheet.xml
@@ -205,14 +205,53 @@
 
 
     <!-- Additional details -->
+    <ImageView
+            android:layout_width="35sp"
+            android:layout_height="35sp"
+            app:srcCompat="@drawable/ic_map_pin"
+            android:id="@+id/centerBottomLayoutImage"
+            android:layout_marginTop="12dp"
+            android:layout_marginEnd="12dp"
+            android:layout_marginBottom="5dp"
+            android:layout_marginStart="12dp"
+            app:layout_constraintEnd_toStartOf="@id/directionsCardButton"
+            app:layout_constraintTop_toBottomOf="@id/directionsCardButton"
+            android:foreground="?selectableItemBackground"
+            app:tint="?colorPrimary"
+    />
+    <!--
+    <androidx.cardview.widget.CardView
+            android:id="@+id/centerMapCardView"
+            android:layout_width="40dp"
+            android:layout_height="40dp"
+            android:layout_margin="10dp"
+            app:cardCornerRadius="5dp"
+            app:cardElevation="2dp"
+            android:clickable="true"
+            android:focusable="true"
+            app:layout_constraintTop_toBottomOf="@id/directionsCardButton"
+            app:layout_constraintEnd_toStartOf="@id/btnClose"
+            android:foreground="?selectableItemBackground"
+            android:backgroundTint="@color/colorTransparent"
+    >
+
+        <ImageView
+                android:layout_width="30sp"
+                android:layout_height="30sp"
+                android:layout_gravity="center"
+                app:tint="?colorPrimary"
+                android:backgroundTint="@color/colorTransparent"
+                app:srcCompat="@drawable/ic_map_center_carbon" />
 
+    </androidx.cardview.widget.CardView>
+    -->
     <!-- Close button -->
     <ImageView
             android:layout_width="30sp"
             android:layout_height="30sp"
             app:srcCompat="@drawable/baseline_close_16"
             android:id="@+id/btnClose"
-            android:layout_marginTop="15dp"
+            android:layout_marginTop="17dp"
             android:layout_marginEnd="15dp"
             android:layout_marginBottom="5dp"
             android:layout_marginStart="10dp"
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 829603a..d64b3d5 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -207,6 +207,8 @@
     <string name="location_enabled">Location enabled</string>
     <string name="location_disabled">Location disabled</string>
     <string name="map_location_disabled_device">Location is disabled on device</string>
+    <string name="already_center_bottom_sheet_stop">Map already centered on stop</string>
+    <string name="already_center_bottom_sheet_vehicle">Map already centered on vehicle</string>
 
     <!--
     Arrival times sources