Implemented empty builder for GraphView

lib/l10n/arb/app_de.arb

@@ -85,6 +85,7 @@
   "end_game_message": "Möchtest du das Spiel beenden? Das Spiel wird als beendet markiert und kann nicht fortgeführt werden.",
 
   "game_process": "Spielverlauf",
+  "empty_graph_text": "Du musst mindestens zwei Runden spielen, damit der Graph des Spielverlaufes angezeigt werden kann.",
 
   "settings": "Einstellungen",
   "cabo_penalty": "Cabo-Strafe",

lib/l10n/arb/app_en.arb

@@ -74,18 +74,20 @@
   "done": "Done",
   "next_round": "Next Round",
 
+
   "statistics": "Statistics",
   "end_game": "End Game",
   "delete_game": "Delete Game",
   "new_game_same_settings": "New Game with same Settings",
   "export_game": "Export Game",
-
-  "game_process": "Spielverlauf",
   "id_error_title": "ID Error",
   "id_error_message": "The game has not yet been assigned an ID. If you want to delete the game, please do so via the main menu. All newly created games have an ID.",
   "end_game_title": "End the game?",
   "end_game_message": "Do you want to end the game? The game gets marked as finished and cannot be continued.",
 
+  "game_process": "Scoring History",
+  "empty_graph_text": "You must play at least two rounds for the game progress graph to be displayed.",
+
   "settings": "Settings",
   "cabo_penalty": "Cabo Penalty",
   "cabo_penalty_subtitle": "... for falsely calling Cabo.",

lib/l10n/generated/app_localizations.dart

@@ -476,6 +476,12 @@ abstract class AppLocalizations {
   /// **'Spielverlauf'**
   String get game_process;
 
+  /// No description provided for @empty_graph_text.
+  ///
+  /// In de, this message translates to:
+  /// **'Du musst mindestens zwei Runden spielen, damit der Graph des Spielverlaufes angezeigt werden kann.'**
+  String get empty_graph_text;
+
   /// No description provided for @settings.
   ///
   /// In de, this message translates to:

lib/l10n/generated/app_localizations_de.dart

@@ -210,6 +210,10 @@ class AppLocalizationsDe extends AppLocalizations {
   @override
   String get game_process => 'Spielverlauf';
 
+  @override
+  String get empty_graph_text =>
+      'Du musst mindestens zwei Runden spielen, damit der Graph des Spielverlaufes angezeigt werden kann.';
+
   @override
   String get settings => 'Einstellungen';
 

lib/l10n/generated/app_localizations_en.dart

@@ -92,7 +92,7 @@ class AppLocalizationsEn extends AppLocalizations {
       'If you are not satisfied with the app, please let me know before leaving a bad rating. I will try to fix the issue as soon as possible.';
 
   @override
-  String get contact_email => 'Contac via E-Mail';
+  String get contact_email => 'Contact via E-Mail';
 
   @override
   String get email_subject => 'Feedback: Cabo Counter App';
@@ -205,7 +205,11 @@ class AppLocalizationsEn extends AppLocalizations {
       'Do you want to end the game? The game gets marked as finished and cannot be continued.';
 
   @override
-  String get game_process => 'Spielverlauf';
+  String get game_process => 'Scoring History';
+
+  @override
+  String get empty_graph_text =>
+      'You must play at least two rounds for the game progress graph to be displayed.';
 
   @override
   String get settings => 'Settings';

lib/presentation/views/graph_view.dart

@@ -26,21 +26,39 @@ class _GraphViewState extends State<GraphView> {
   @override
   Widget build(BuildContext context) {
     return CupertinoPageScaffold(
-      navigationBar: CupertinoNavigationBar(
+        navigationBar: CupertinoNavigationBar(
-        middle: Text(AppLocalizations.of(context).game_process),
+          middle: Text(AppLocalizations.of(context).game_process),
-        previousPageTitle: AppLocalizations.of(context).back,
+          previousPageTitle: AppLocalizations.of(context).back,
-      ),
-      child: Padding(
-        padding: const EdgeInsets.fromLTRB(0, 100, 0, 0),
-        child: SfCartesianChart(
-          legend:
-              const Legend(isVisible: true, position: LegendPosition.bottom),
-          primaryXAxis: const NumericAxis(),
-          primaryYAxis: const NumericAxis(),
-          series: getCumulativeScores(),
         ),
-      ),
+        child: widget.gameSession.roundNumber > 2
-    );
+            ? Padding(
+                padding: const EdgeInsets.fromLTRB(0, 100, 0, 0),
+                child: SfCartesianChart(
+                  legend: const Legend(
+                      isVisible: true, position: LegendPosition.bottom),
+                  primaryXAxis: const NumericAxis(),
+                  primaryYAxis: const NumericAxis(),
+                  series: getCumulativeScores(),
+                ),
+              )
+            : Column(
+                mainAxisAlignment: MainAxisAlignment.center,
+                crossAxisAlignment: CrossAxisAlignment.center,
+                children: [
+                  const Center(
+                    child: Icon(CupertinoIcons.chart_bar_alt_fill, size: 60),
+                  ),
+                  const SizedBox(height: 10), // Abstand von oben
+                  Padding(
+                    padding: const EdgeInsets.symmetric(horizontal: 40),
+                    child: Text(
+                      AppLocalizations.of(context).empty_graph_text,
+                      textAlign: TextAlign.center,
+                      style: const TextStyle(fontSize: 16),
+                    ),
+                  ),
+                ],
+              ));
   }
 
   /// Returns a list of LineSeries representing the cumulative scores of each player.

pubspec.yaml

@@ -2,7 +2,7 @@ name: cabo_counter
 description: "Mobile app for the card game Cabo"
 publish_to: 'none'
 
-version: 0.4.0+467
+version: 0.4.0+470
 
 environment:
   sdk: ^3.5.4