重启viz预览 按钮位置调整

VIZ.Package.Module.Resource/VIZ.Package.Module.Resource.csproj

@@ -277,5 +277,8 @@
     <Resource Include="Icons\update_36x36.png" />
     <Resource Include="Icons\update_hover_36x36.png" />
   </ItemGroup>
+  <ItemGroup>
+    <Resource Include="Icons\down_32x32.png" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
 </Project>
\ No newline at end of file

VIZ.Package.Module/Preview/VizPreview/View/VizPreviewView.xaml

@@ -56,8 +56,13 @@
             </StackPanel>
 
             <StackPanel Orientation="Horizontal" Grid.Column="1" HorizontalAlignment="Right" VerticalAlignment="Center">
-                <Menu IsEnabled="{Binding Path=IsVizPreviewRefreshEnabled}">
-                    <MenuItem Header="VIZ引擎">
+                <Menu IsEnabled="{Binding Path=IsVizPreviewRefreshEnabled}" Height="24">
+                    <MenuItem Height="24">
+                        <MenuItem.Header>
+                            <Border Background="Transparent">
+                                <Image Width="14" Height="14" Source="/VIZ.Package.Module.Resource;component/Icons/down_32x32.png"></Image>
+                            </Border>
+                        </MenuItem.Header>
                         <MenuItem Header="重启预览引擎"
                                   Command="{Binding Path=RestartPreviewCommand}">
                             <MenuItem.Icon>