style<Histories>: show guide directly instead of hiding it in button's tooltip

src/Resources/Locales/en_US.xaml

@@ -261,7 +261,7 @@
     <sys:String x:Key="Text.Histories.Guide_1">1. Select single commit to view detail</sys:String>
     <sys:String x:Key="Text.Histories.Guide_2">2. Select two commits to show differences</sys:String>
     <sys:String x:Key="Text.Histories.Guide_3">3. Select more than 2 commits to count</sys:String>
-    <sys:String x:Key="Text.Histories.Guide_4">4. Try to open context menu with selected commit</sys:String>
+    <sys:String x:Key="Text.Histories.Guide_4">4. Open context menu to see more options</sys:String>
 
     <sys:String x:Key="Text.Init">Initialize Repository</sys:String>
     <sys:String x:Key="Text.Init.Path">Path :</sys:String>

src/Resources/Locales/zh_CN.xaml

@@ -256,7 +256,7 @@
     <sys:String x:Key="Text.Histories.SearchClear">清空</sys:String>
     <sys:String x:Key="Text.Histories.GraphMode">切换曲线/折线显示</sys:String>
     <sys:String x:Key="Text.Histories.DisplayMode">切换横向/纵向显示</sys:String>
-    <sys:String x:Key="Text.Histories.Selected">已选中{0}项提交</sys:String>
+    <sys:String x:Key="Text.Histories.Selected">已选中 {0} 项提交</sys:String>
     <sys:String x:Key="Text.Histories.Guide">操作说明</sys:String>
     <sys:String x:Key="Text.Histories.Guide_1">1. 单选时，显示选中提交的详细信息</sys:String>
     <sys:String x:Key="Text.Histories.Guide_2">2. 双选时，按选中顺序对比两个提交</sys:String>

src/Views/Widgets/Histories.xaml

@@ -174,12 +174,26 @@
             <Border x:Name="mask" Background="{StaticResource Brush.Window}">
                 <StackPanel Orientation="Vertical" VerticalAlignment="Center" Opacity=".25">
                     <Path Width="128" Height="128" Data="{StaticResource Icon.Detail}"/>
-                    <TextBlock x:Name="txtCounter" Visibility="Hidden" FontFamily="Consolas" Margin="0,16,0,0" FontSize="24" FontWeight="UltraBold" HorizontalAlignment="Center"/>
+                    
+                    <TextBlock 
+                        x:Name="txtCounter" 
+                        Margin="0,16"
+                        FontFamily="Consolas" FontSize="24" FontWeight="UltraBold" 
+                        HorizontalAlignment="Center" 
+                        TextOptions.TextFormattingMode="Ideal"
+                        Text="{StaticResource Text.Histories.Guide}"/>
+
+                    <StackPanel Orientation="Vertical" HorizontalAlignment="Center" TextBlock.FontFamily="Consolas,Microsoft YaHei UI">
+                        <TextBlock Text="{StaticResource Text.Histories.Guide_1}" FontSize="14" Margin="0,2"/>
+                        <TextBlock Text="{StaticResource Text.Histories.Guide_2}" FontSize="14" Margin="0,2"/>
+                        <TextBlock Text="{StaticResource Text.Histories.Guide_3}" FontSize="14" Margin="0,2"/>
+                        <TextBlock Text="{StaticResource Text.Histories.Guide_4}" FontSize="14" Margin="0,2"/>
+                    </StackPanel>
                 </StackPanel>
             </Border>
 
             <!-- Right Top Button -->
-            <StackPanel HorizontalAlignment="Right" VerticalAlignment="Top" Margin="0,6,0,0" Orientation="Horizontal">
+            <StackPanel HorizontalAlignment="Right" VerticalAlignment="Top" Margin="0,6,8,0" Orientation="Horizontal">
                 <ToggleButton
                     Style="{StaticResource Style.ToggleButton.CommitGraphMode}"
                     Foreground="{StaticResource Brush.FG2}"
@@ -196,26 +210,6 @@
                     ToolTip="{StaticResource Text.Histories.DisplayMode}"
                     IsChecked="{Binding Source={x:Static models:Preference.Instance}, Path=Window.MoveCommitInfoRight, Mode=TwoWay, Converter={StaticResource InverseBool}}"
                     Checked="ChangeOrientation" Unchecked="ChangeOrientation"/>
-
-                <controls:IconButton
-                    Margin="8,0"
-                    Width="16" Height="16"
-                    ToolTip="{StaticResource Text.Histories.Guide}"
-                    Icon="{StaticResource Icon.Help}"
-                    Opacity=".4"
-                    Click="OpenGuide"/>
-
-                <Popup x:Name="popupGuide" IsOpen="False" StaysOpen="False" Placement="Bottom">
-                    <Border Background="{StaticResource Brush.Popup}" BorderThickness="1" BorderBrush="{StaticResource Brush.Border2}">
-                        <StackPanel Orientation="Vertical" TextElement.FontFamily="Consolas" Margin="8">
-                            <Label Content="{StaticResource Text.Histories.Guide}" FontWeight="Bold" FontSize="14" Margin="0,0,0,8"/>
-                            <Label Content="{StaticResource Text.Histories.Guide_1}"/>
-                            <Label Content="{StaticResource Text.Histories.Guide_2}"/>
-                            <Label Content="{StaticResource Text.Histories.Guide_3}"/>
-                            <Label Content="{StaticResource Text.Histories.Guide_4}"/>
-                        </StackPanel>
-                    </Border>
-                </Popup>
             </StackPanel>
         </Grid>
     </Grid>

src/Views/Widgets/Histories.xaml.cs

@@ -238,11 +238,10 @@ namespace SourceGit.Views.Widgets {
                 revisionCompare.Visibility = Visibility.Visible;
             } else if (selected.Count > 2) {
                 mask.Visibility = Visibility.Visible;
-                txtCounter.Visibility = Visibility.Visible;
                 txtCounter.Text = App.Text("Histories.Selected", selected.Count);
             } else {
                 mask.Visibility = Visibility.Visible; 
-                txtCounter.Visibility = Visibility.Hidden;
+                txtCounter.Text = App.Text("Histories.Guide");
             }
         }
 
@@ -594,12 +593,5 @@ namespace SourceGit.Views.Widgets {
             menu.Items.Add(submenu);
         }
         #endregion
-
-        #region GUIDE
-        private void OpenGuide(object sender, RoutedEventArgs e) {
-            popupGuide.IsOpen = !popupGuide.IsOpen;
-            e.Handled = true;
-        }
-        #endregion
     }
 }