1         public void OnPropertyChanged(Object sender, PropertyChangedEventArgs args)
 2         {
 3             //Rect tmp = _layoutTransform.TransformBounds(((Rect)_content));
 4             if (null == _content)
 5             {
 6                 return;
 7             }
 8
 9             _content.RenderTransform = _layoutTransform;
10             CompositeTransform tmp = (CompositeTransform) _layoutTransform;
11             double radian = tmp.Rotation * Math.PI / 180;
12             double d = (_content.Width) * (System.Math.Sin(radian) + System.Math.Cos(radian));
13             double margin = Math.Abs((d  - _content.Width)/2);
14             _content.Margin = new Thickness(margin);
15         }

 1 <phone:PhoneApplicationPage
 2     x:Name="Myself"
 3     x:Class="LayoutTransform.MainPage"
 4     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
 5     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
 6     xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
 7     xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
 8     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
 9     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
10     xmlns:system="clr-namespace:System;assembly=mscorlib"
11     xmlns:layouttransform="clr-namespace:LayoutTransform;assembly=LayoutTransform"
12     mc:Ignorable="d" d:DesignWidth="480" d:DesignHeight="768"
13     FontFamily="{StaticResource PhoneFontFamilyNormal}"
14     FontSize="{StaticResource PhoneFontSizeNormal}"
15     Foreground="{StaticResource PhoneForegroundBrush}"
16     SupportedOrientations="Portrait" Orientation="Portrait"
17     shell:SystemTray.IsVisible="True">
18
19     <phone:PhoneApplicationPage.Resources>
20         <system:Double x:Key="MyFontSizeAppName">24</system:Double>
21         <FontFamily x:Key="MyFontFamilySemiBold">Segoe WP Semibold</FontFamily>
22
23         <Style x:Key="MyAppNameTextBlockStyle" TargetType="TextBlock">
24             <Setter Property="FontFamily" Value="{StaticResource MyFontFamilySemiBold}"/>
25             <Setter Property="FontSize" Value="{StaticResource MyFontSizeAppName}"/>
26             <Setter Property="Foreground" Value="{StaticResource PhoneForegroundBrush}"/>
27             <Setter Property="Margin" Value="12,10,12,10" />
28         </Style>
29
30         <Storyboard x:Name="sb_protagonist">
31             <DoubleAnimation Storyboard.TargetName="Myself"
32                              Storyboard.TargetProperty="Rotation"
33                              From="0" To="360" Duration="0:0:5" />
34         </Storyboard>
35     </phone:PhoneApplicationPage.Resources>