修复 保存图片时图片不存在报错的问题

VPet.ModMaker/Models/Expansions.cs

@@ -80,6 +80,8 @@ public static class Extensions
     /// <param name="path">路径</param>
     public static void SaveToPng(this BitmapSource image, string path)
     {
+        if (image is null)
+            return;
         if (path.EndsWith(".png") is false)
             path += ".png";
         var encoder = new PngBitmapEncoder();

VPet.ModMaker/Models/ModModel/ModInfoModel.cs

@@ -249,8 +249,8 @@ public class ModInfoModel : I18nModel<I18nModInfoModel>
             if (I18nHelper.Current.CultureNames.Contains(lang) is false)
                 I18nHelper.Current.CultureNames.Add(lang);
         }
-        if (I18nHelper.Current.CultureNames.Count > 0)
-        {
+        if (I18nHelper.Current.CultureNames.Count == 0)
+            return;
         I18nHelper.Current.CultureName.Value = I18nHelper.Current.CultureNames.First();
         foreach (var i18nData in OtherI18nDatas)
         {
@@ -298,7 +298,6 @@ public class ModInfoModel : I18nModel<I18nModInfoModel>
             }
         }
     }
-    }
     #endregion
     #region Save
     /// <summary>

VPet.ModMaker/ViewModels/ModEdit/ModEditWindowVM.cs

@@ -200,21 +200,21 @@ public class ModEditWindowVM
         if (saveFileDialog.ShowDialog() is true)
         {
             var pending = PendingBox.Show("保存中".Translate());
-            try
-            {
+            //try
+            //{
             var path = Path.GetDirectoryName(saveFileDialog.FileName);
             ModInfo.Value.SaveTo(path);
             if (string.IsNullOrWhiteSpace(ModInfo.Value.SourcePath.Value))
                 ModInfo.Value.SourcePath.Value = path;
             pending.Close();
             MessageBox.Show(ModEditWindow, "保存成功".Translate());
-            }
-            catch (Exception ex)
-            {
-                pending.Close();
-                MessageBox.Show($"保存失败 错误信息:\n{0}".Translate(ex));
-                return;
-            }
+            //}
+            //catch (Exception ex)
+            //{
+            //    pending.Close();
+            //    MessageBox.Show("保存失败 错误信息:\n{0}".Translate(ex));
+            //    return;
+            //}
         }
     }
 

VPet.ModMaker/Views/ModMakerWindow.xaml

@@ -36,7 +36,7 @@
         <Button
           Grid.Column="1"
           Command="{Binding ClearHistoriesCommand}"
-          Content="清空历史" />
+          Content="{ll:Str 清空历史}" />
       </Grid>
       <ListBox
         Grid.Row="2"