feature: add a pie-chart for top contributors

Signed-off-by: leo <longshuang@msn.cn>

Author: love-linger

src/Resources/Locales/en_US.axaml

@@ -950,10 +950,14 @@
   <x:String x:Key="Text.Stashes.Changes" xml:space="preserve">CHANGES</x:String>
   <x:String x:Key="Text.Stashes.Stashes" xml:space="preserve">STASHES</x:String>
   <x:String x:Key="Text.Statistics" xml:space="preserve">Statistics</x:String>
+  <x:String x:Key="Text.Statistics.Commits" xml:space="preserve">COMMITS</x:String>
   <x:String x:Key="Text.Statistics.Overview" xml:space="preserve">OVERVIEW</x:String>
   <x:String x:Key="Text.Statistics.ThisMonth" xml:space="preserve">MONTH</x:String>
   <x:String x:Key="Text.Statistics.ThisWeek" xml:space="preserve">WEEK</x:String>
   <x:String x:Key="Text.Statistics.Tips" xml:space="preserve">SourceGit will only get a maximum of 200,000 commits according to the target branch for analysis.</x:String>
+  <x:String x:Key="Text.Statistics.TopAuthors" xml:space="preserve">TOP AUTHORS</x:String>
+  <x:String x:Key="Text.Statistics.TopAuthors.Count" xml:space="preserve">COMMITS</x:String>
+  <x:String x:Key="Text.Statistics.TopAuthors.Percentage" xml:space="preserve">PERCENTAGE</x:String>
   <x:String x:Key="Text.Statistics.TotalAuthors" xml:space="preserve">AUTHORS: </x:String>
   <x:String x:Key="Text.Statistics.TotalCommits" xml:space="preserve">COMMITS: </x:String>
   <x:String x:Key="Text.Submodule" xml:space="preserve">SUBMODULES</x:String>

src/Resources/Locales/zh_CN.axaml

@@ -954,10 +954,14 @@
   <x:String x:Key="Text.Stashes.Changes" xml:space="preserve">查看变更</x:String>
   <x:String x:Key="Text.Stashes.Stashes" xml:space="preserve">贮藏列表</x:String>
   <x:String x:Key="Text.Statistics" xml:space="preserve">提交统计</x:String>
+  <x:String x:Key="Text.Statistics.Commits" xml:space="preserve">提交统计图</x:String>
   <x:String x:Key="Text.Statistics.Overview" xml:space="preserve">总览</x:String>
   <x:String x:Key="Text.Statistics.ThisMonth" xml:space="preserve">本月</x:String>
   <x:String x:Key="Text.Statistics.ThisWeek" xml:space="preserve">本周</x:String>
   <x:String x:Key="Text.Statistics.Tips" xml:space="preserve">SourceGit 仅会按所选分支最多取出 200000 条提交记录进行分析</x:String>
+  <x:String x:Key="Text.Statistics.TopAuthors" xml:space="preserve">主要贡献者</x:String>
+  <x:String x:Key="Text.Statistics.TopAuthors.Count" xml:space="preserve">提交数量</x:String>
+  <x:String x:Key="Text.Statistics.TopAuthors.Percentage" xml:space="preserve">百分比</x:String>
   <x:String x:Key="Text.Statistics.TotalAuthors" xml:space="preserve">贡献者人数: </x:String>
   <x:String x:Key="Text.Statistics.TotalCommits" xml:space="preserve">提交次数: </x:String>
   <x:String x:Key="Text.Submodule" xml:space="preserve">子模块</x:String>

src/ViewModels/Statistics.cs

@@ -45,6 +45,11 @@ public Models.StatisticsReport SelectedReport
             private set => SetProperty(ref _selectedReport, value);
         }
 
+        public Models.StatisticsAuthor SelectedAuthor
+        {
+            get => _selectedAuthor;
+        }
+
         public Models.StatisticsSamples Samples
         {
             get => _samples;
@@ -60,9 +65,10 @@ public Statistics(string repo)
 
         public void ChangeAuthor(Models.StatisticsAuthor author)
         {
-            if (SelectedReport == null)
+            if (SelectedReport == null || author == _selectedAuthor)
                 return;
 
+            _selectedAuthor = author;
             Samples = SelectedReport.GetSamples(author);
         }
 
@@ -120,6 +126,7 @@ private void RefreshReport()
         private Models.Statistics _data = null;
         private Models.StatisticsMode _viewMode = Models.StatisticsMode.All;
         private Models.StatisticsReport _selectedReport = null;
+        private Models.StatisticsAuthor _selectedAuthor = null;
         private Models.StatisticsSamples _samples = null;
     }
 }