minor fixes

lib/model/settings.dart

@@ -8,7 +8,7 @@ final Settings settings = Settings._private();
 typedef SettingsCallback = void Function(String key, dynamic oldValue, dynamic newValue);
 
 class Settings {
-  static SharedPreferences prefs;
+  static SharedPreferences _prefs;
 
   final ObserverList<SettingsCallback> _listeners = ObserverList<SettingsCallback>();
 
@@ -21,11 +21,11 @@ class Settings {
   static const catalogTimeZoneKey = 'catalog_time_zone';
 
   Future<void> init() async {
-    prefs = await SharedPreferences.getInstance();
+    _prefs = await SharedPreferences.getInstance();
   }
 
   Future<void> reset() {
-    return prefs.clear();
+    return _prefs.clear();
   }
 
   void addListener(SettingsCallback listener) => _listeners.add(listener);
@@ -48,11 +48,11 @@ class Settings {
     }
   }
 
-  double get infoMapZoom => prefs.getDouble(infoMapZoomKey) ?? 12;
+  double get infoMapZoom => _prefs.getDouble(infoMapZoomKey) ?? 12;
 
   set infoMapZoom(double newValue) => setAndNotify(infoMapZoomKey, newValue);
 
-  String get catalogTimeZone => prefs.getString(catalogTimeZoneKey) ?? '';
+  String get catalogTimeZone => _prefs.getString(catalogTimeZoneKey) ?? '';
 
   set catalogTimeZone(String newValue) => setAndNotify(catalogTimeZoneKey, newValue);
 
@@ -66,10 +66,10 @@ class Settings {
 
   // convenience methods
 
-  bool getBoolOrDefault(String key, bool defaultValue) => prefs.getKeys().contains(key) ? prefs.getBool(key) : defaultValue;
+  bool getBoolOrDefault(String key, bool defaultValue) => _prefs.getKeys().contains(key) ? _prefs.getBool(key) : defaultValue;
 
   T getEnumOrDefault<T>(String key, T defaultValue, Iterable<T> values) {
-    final valueString = prefs.getString(key);
+    final valueString = _prefs.getString(key);
     for (final element in values) {
       if (element.toString() == valueString) {
         return element;
@@ -79,28 +79,28 @@ class Settings {
   }
 
   List<T> getEnumListOrDefault<T>(String key, List<T> defaultValue, Iterable<T> values) {
-    return prefs.getStringList(key)?.map((s) => values.firstWhere((el) => el.toString() == s, orElse: () => null))?.where((el) => el != null)?.toList() ?? defaultValue;
+    return _prefs.getStringList(key)?.map((s) => values.firstWhere((el) => el.toString() == s, orElse: () => null))?.where((el) => el != null)?.toList() ?? defaultValue;
   }
 
   void setAndNotify(String key, dynamic newValue) {
-    var oldValue = prefs.get(key);
+    var oldValue = _prefs.get(key);
     if (newValue == null) {
-      prefs.remove(key);
+      _prefs.remove(key);
     } else if (newValue is String) {
-      oldValue = prefs.getString(key);
-      prefs.setString(key, newValue);
+      oldValue = _prefs.getString(key);
+      _prefs.setString(key, newValue);
     } else if (newValue is List<String>) {
-      oldValue = prefs.getStringList(key);
-      prefs.setStringList(key, newValue);
+      oldValue = _prefs.getStringList(key);
+      _prefs.setStringList(key, newValue);
     } else if (newValue is int) {
-      oldValue = prefs.getInt(key);
-      prefs.setInt(key, newValue);
+      oldValue = _prefs.getInt(key);
+      _prefs.setInt(key, newValue);
     } else if (newValue is double) {
-      oldValue = prefs.getDouble(key);
-      prefs.setDouble(key, newValue);
+      oldValue = _prefs.getDouble(key);
+      _prefs.setDouble(key, newValue);
     } else if (newValue is bool) {
-      oldValue = prefs.getBool(key);
-      prefs.setBool(key, newValue);
+      oldValue = _prefs.getBool(key);
+      _prefs.setBool(key, newValue);
     }
     if (oldValue != newValue) {
       notifyListeners(key, oldValue, newValue);

lib/widgets/fullscreen/fullscreen_actions.dart

@@ -1,6 +1,5 @@
 import 'package:flutter/material.dart';
 import 'package:outline_material_icons/outline_material_icons.dart';
-import 'package:tuple/tuple.dart';
 
 enum FullscreenAction { delete, edit, info, open, openMap, print, rename, rotateCCW, rotateCW, setAs, share, toggleFavourite }
 
@@ -22,36 +21,68 @@ class FullscreenActions {
     FullscreenAction.setAs,
     FullscreenAction.openMap,
   ];
+}
 
-  static Tuple2<String, IconData> getTextIcon(FullscreenAction action) {
-    switch (action) {
+extension ExtraFullscreenAction on FullscreenAction {
+  String getText() {
+    switch (this) {
       // in app actions
       case FullscreenAction.toggleFavourite:
         // different data depending on toggle state
         return null;
       case FullscreenAction.delete:
-        return const Tuple2('Delete', OMIcons.delete);
+        return 'Delete';
       case FullscreenAction.info:
-        return const Tuple2('Info', OMIcons.info);
+        return 'Info';
       case FullscreenAction.rename:
-        return const Tuple2('Rename', OMIcons.title);
+        return 'Rename';
       case FullscreenAction.rotateCCW:
-        return const Tuple2('Rotate left', OMIcons.rotateLeft);
+        return 'Rotate left';
       case FullscreenAction.rotateCW:
-        return const Tuple2('Rotate right', OMIcons.rotateRight);
+        return 'Rotate right';
       case FullscreenAction.print:
-        return const Tuple2('Print', OMIcons.print);
+        return 'Print';
       case FullscreenAction.share:
-        return const Tuple2('Share', OMIcons.share);
+        return 'Share';
       // external app actions
       case FullscreenAction.edit:
-        return const Tuple2('Edit with…', null);
+        return 'Edit with…';
       case FullscreenAction.open:
-        return const Tuple2('Open with…', null);
+        return 'Open with…';
       case FullscreenAction.setAs:
-        return const Tuple2('Set as…', null);
+        return 'Set as…';
       case FullscreenAction.openMap:
-        return const Tuple2('Show on map…', null);
+        return 'Show on map…';
+    }
+    return null;
+  }
+
+  IconData getIcon() {
+    switch (this) {
+      // in app actions
+      case FullscreenAction.toggleFavourite:
+        // different data depending on toggle state
+        return null;
+      case FullscreenAction.delete:
+        return OMIcons.delete;
+      case FullscreenAction.info:
+        return OMIcons.info;
+      case FullscreenAction.rename:
+        return OMIcons.title;
+      case FullscreenAction.rotateCCW:
+        return OMIcons.rotateLeft;
+      case FullscreenAction.rotateCW:
+        return OMIcons.rotateRight;
+      case FullscreenAction.print:
+        return OMIcons.print;
+      case FullscreenAction.share:
+        return OMIcons.share;
+      // external app actions
+      case FullscreenAction.edit:
+      case FullscreenAction.open:
+      case FullscreenAction.setAs:
+      case FullscreenAction.openMap:
+        return null;
     }
     return null;
   }

lib/widgets/fullscreen/overlay/top.dart

@@ -143,11 +143,10 @@ class FullscreenTopOverlay extends StatelessWidget {
       case FullscreenAction.rotateCCW:
       case FullscreenAction.rotateCW:
       case FullscreenAction.print:
-        final textIcon = FullscreenActions.getTextIcon(action);
         child = IconButton(
-          icon: Icon(textIcon.item2),
+          icon: Icon(action.getIcon()),
           onPressed: onPressed,
-          tooltip: textIcon.item1,
+          tooltip: action.getText(),
         );
         break;
       case FullscreenAction.openMap:
@@ -189,16 +188,14 @@ class FullscreenTopOverlay extends StatelessWidget {
       case FullscreenAction.rotateCCW:
       case FullscreenAction.rotateCW:
       case FullscreenAction.print:
-        final textIcon = FullscreenActions.getTextIcon(action);
-        child = MenuRow(text: textIcon.item1, icon: textIcon.item2);
+        child = MenuRow(text: action.getText(), icon: action.getIcon());
         break;
       // external app actions
       case FullscreenAction.edit:
       case FullscreenAction.open:
       case FullscreenAction.setAs:
       case FullscreenAction.openMap:
-        final textIcon = FullscreenActions.getTextIcon(action);
-        child = Text(textIcon.item1);
+        child = Text(action.getText());
         break;
     }
     return PopupMenuItem(