From 5839501f49a10e69d48157fb92b8b13ef0e48391 Mon Sep 17 00:00:00 2001
From: Peter Leibiger <kuhnroyal@gmail.com>
Date: Tue, 25 Jun 2024 12:10:58 +0200
Subject: [PATCH] Fix #437 toggling myLocationEnabled in example (#457)

`myLocationEnabled` can only be disabled for
`MyLocationRenderMode.normal` - it is required for gps/compass. This
change disables the appropriate buttons and actually passes the current
render mode to the map widget.
Fixes #437

Co-authored-by: Joscha <34318751+josxha@users.noreply.github.com>
---
 example/lib/map_ui.dart | 32 ++++++++++++++++++++++++++------
 1 file changed, 26 insertions(+), 6 deletions(-)

diff --git a/example/lib/map_ui.dart b/example/lib/map_ui.dart
index 8321fd50..dc405f5c 100644
--- a/example/lib/map_ui.dart
+++ b/example/lib/map_ui.dart
@@ -62,6 +62,7 @@ class MapUiBodyState extends State<MapUiBody> {
   bool _telemetryEnabled = true;
   bool _countriesVisible = true;
   MyLocationTrackingMode _myLocationTrackingMode = MyLocationTrackingMode.none;
+  MyLocationRenderMode _myLocationRenderMode = MyLocationRenderMode.normal;
   List<Object>? _featureQueryFilter;
   Fill? _selectedFill;
 
@@ -97,6 +98,22 @@ class MapUiBodyState extends State<MapUiBody> {
     );
   }
 
+  Widget _myLocationRenderModeCycler() {
+    final MyLocationRenderMode nextType = MyLocationRenderMode.values[
+        (_myLocationRenderMode.index + 1) % MyLocationRenderMode.values.length];
+    return TextButton(
+      onPressed:
+          _myLocationEnabled == true || nextType == MyLocationRenderMode.normal
+              ? () {
+                  setState(() {
+                    _myLocationRenderMode = nextType;
+                  });
+                }
+              : null,
+      child: Text('change to $nextType'),
+    );
+  }
+
   Widget _queryFilterToggler() {
     return TextButton(
       child: Text(
@@ -251,12 +268,14 @@ class MapUiBodyState extends State<MapUiBody> {
 
   Widget _myLocationToggler() {
     return TextButton(
+      onPressed: _myLocationRenderMode == MyLocationRenderMode.normal
+          ? () {
+              setState(() {
+                _myLocationEnabled = !_myLocationEnabled;
+              });
+            }
+          : null,
       child: Text('${_myLocationEnabled ? 'disable' : 'enable'} my location'),
-      onPressed: () {
-        setState(() {
-          _myLocationEnabled = !_myLocationEnabled;
-        });
-      },
     );
   }
 
@@ -355,7 +374,7 @@ class MapUiBodyState extends State<MapUiBody> {
       doubleClickZoomEnabled: _doubleClickToZoomEnabled,
       myLocationEnabled: _myLocationEnabled,
       myLocationTrackingMode: _myLocationTrackingMode,
-      myLocationRenderMode: MyLocationRenderMode.gps,
+      myLocationRenderMode: _myLocationRenderMode,
       onMapClick: (point, latLng) async {
         debugPrint(
             "Map click: ${point.x},${point.y}   ${latLng.latitude}/${latLng.longitude}");
@@ -420,6 +439,7 @@ class MapUiBodyState extends State<MapUiBody> {
           _queryFilterToggler(),
           _compassToggler(),
           _myLocationTrackingModeCycler(),
+          _myLocationRenderModeCycler(),
           _latLngBoundsToggler(),
           _setStyleToSatellite(),
           _zoomBoundsToggler(),