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WPF換膚設(shè)計(jì)原理淺析

更新時(shí)間：2016年10月12日 10:40:30 作者：sunny906

這篇文章主要為大家詳細(xì)介紹了WPF換膚設(shè)計(jì)原理,具有一定的參考價(jià)值，感興趣的小伙伴們可以參考一下

WPF換膚的設(shè)計(jì)原理，利用資源字典為每種皮膚資源添加不同的樣式，在后臺(tái)切換皮膚資源文件。

截圖

上圖中，第一張圖采用規(guī)則樣式，第二張圖采用不規(guī)則樣式，截圖的時(shí)候略有瑕疵。

資源字典

規(guī)則樣式資源Skin.RegularStyle.xaml

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

 <!--Window樣式-->
 <Style x:Key="WindowStyle" TargetType="Window">
  <Setter Property="Template">
   <Setter.Value>
    <ControlTemplate TargetType="Window">
     <Border BorderBrush="{TemplateBinding BorderBrush}" 
       BorderThickness="{TemplateBinding BorderThickness}">
      <Border.Background>
       <LinearGradientBrush StartPoint="0,0" EndPoint="0,1">
        <GradientStop Color="Green" Offset="0"></GradientStop>
        <GradientStop Color="LightGreen" Offset="0.4"></GradientStop>
        <GradientStop Color="White" Offset="1"></GradientStop>
       </LinearGradientBrush>
      </Border.Background>
      <ContentPresenter></ContentPresenter>
     </Border>
    </ControlTemplate>
   </Setter.Value>
  </Setter>
 </Style>

 <!--Button樣式-->
 <Style TargetType="Button">
  <Setter Property="Width" Value="70"></Setter>
  <Setter Property="Height" Value="23"></Setter>
  <Setter Property="Template">
   <Setter.Value>
    <ControlTemplate TargetType="Button">
     <Border Name="bdr" Cursor="Arrow"
       BorderBrush="{TemplateBinding BorderBrush}" 
       BorderThickness="{TemplateBinding BorderThickness}">
      <Border.Background>
       <LinearGradientBrush StartPoint="0,0" EndPoint="0,1">
        <GradientStop Color="White" Offset="0"></GradientStop>
        <GradientStop Color="LightGreen" Offset="0.3"></GradientStop>
        <GradientStop Color="Green" Offset="1"></GradientStop>
       </LinearGradientBrush>
      </Border.Background>
      <TextBlock Name="tbk" Background="Transparent" Foreground="DarkGreen" TextAlignment="Center"
         Text="{TemplateBinding Content}"></TextBlock>
     </Border>
     <ControlTemplate.Triggers>
      <Trigger Property="IsMouseOver" Value="True">
       <Setter TargetName="bdr" Property="Background">
        <Setter.Value>
         <LinearGradientBrush StartPoint="0,0" EndPoint="0,1">
          <GradientStop Color="LightGreen" Offset="0"></GradientStop>
          <GradientStop Color="Green" Offset="1"></GradientStop>
         </LinearGradientBrush>
        </Setter.Value>
       </Setter>
       <Setter TargetName="tbk" Property="Foreground" Value="White"></Setter>
      </Trigger>
     </ControlTemplate.Triggers>
    </ControlTemplate>
   </Setter.Value>
  </Setter>
 </Style>

 <!--TextBox樣式-->
 <Style TargetType="TextBox">
  <Setter Property="FontFamily" Value="SketchFlow Print"/>
  <Setter Property="FontSize" Value="14"/>
  <Setter Property="Template">
   <Setter.Value>
    <ControlTemplate TargetType="TextBox">
     <Border BorderBrush="DarkGreen" BorderThickness="0.5">
      <ScrollViewer x:Name="PART_ContentHost" Focusable="false" 
          HorizontalScrollBarVisibility="Hidden" 
          VerticalScrollBarVisibility="Hidden"></ScrollViewer>
     </Border>
    </ControlTemplate>
   </Setter.Value>
  </Setter>
 </Style>

 <!--ContextMenu樣式-->
 <Style TargetType="ContextMenu">
  <Setter Property="Template">
   <Setter.Value>
    <ControlTemplate TargetType="ContextMenu">
     <Border BorderBrush="Green" BorderThickness="1">
      <ItemsPresenter/>
     </Border>
    </ControlTemplate>
   </Setter.Value>
  </Setter>
 </Style>

 <!--MenuItem樣式-->
 <Style TargetType="MenuItem">
  <Setter Property="Template">
   <Setter.Value>
    <ControlTemplate TargetType="MenuItem">
     <Border Name="border" Background="LightGreen" BorderThickness="0">
      <TextBlock Name="tbk" Background="Transparent" Padding="5,5"
         Text="{TemplateBinding Header}"></TextBlock>
     </Border>
     <ControlTemplate.Triggers>
      <Trigger Property="IsMouseOver" Value="True">
       <Setter TargetName="border" Property="Background" Value="Green"></Setter>
       <Setter TargetName="tbk" Property="Foreground" Value="White"></Setter>
      </Trigger>
     </ControlTemplate.Triggers>
    </ControlTemplate>
   </Setter.Value>
  </Setter>
 </Style>

 <!--TextBlock樣式-->
 <Style TargetType="TextBlock">
  <Setter Property="FontFamily" Value="SketchFlow Print"/>
  <Setter Property="FontSize" Value="14"/>
 </Style>

</ResourceDictionary>
不規(guī)則樣式資源Skin.RoundedCornerStyle.xaml
<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

 <!--Window樣式-->
 <Style x:Key="WindowStyle" TargetType="Window">
  <Setter Property="Template">
   <Setter.Value>
    <ControlTemplate TargetType="Window">
     <Grid Margin="10">
      <Rectangle Fill="{DynamicResource {x:Static SystemColors.WindowBrushKey}}" 
         RadiusX="5" RadiusY="5">
       <Rectangle.Effect>
        <DropShadowEffect BlurRadius="10" Color="Black" Direction="0" Opacity="0.8"
             RenderingBias="Performance" ShadowDepth="0"/>
       </Rectangle.Effect>
      </Rectangle>
      <Border BorderBrush="{TemplateBinding BorderBrush}" 
        BorderThickness="{TemplateBinding BorderThickness}" 
        SnapsToDevicePixels="True" CornerRadius="5">
       <Border.Background>
        <LinearGradientBrush StartPoint="0,0" EndPoint="0,1">
         <GradientStop Color="Blue" Offset="0"></GradientStop>
         <GradientStop Color="LightBlue" Offset="0.4"></GradientStop>
         <GradientStop Color="White" Offset="1"></GradientStop>
        </LinearGradientBrush>
       </Border.Background>
       <ContentPresenter></ContentPresenter>
      </Border>
     </Grid>
    </ControlTemplate>
   </Setter.Value>
  </Setter>
 </Style>
 
 <!--Button樣式-->
 <Style TargetType="Button">
  <Setter Property="Width" Value="70"></Setter>
  <Setter Property="Height" Value="23"></Setter>
  <Setter Property="Template">
   <Setter.Value>
    <ControlTemplate TargetType="Button">
     <Border Name="bdr" CornerRadius="5" Cursor="Hand"
       BorderBrush="{TemplateBinding BorderBrush}" 
       BorderThickness="{TemplateBinding BorderThickness}">
      <TextBlock Name="tbk" Background="Transparent" Foreground="Yellow" TextAlignment="Center"
         Text="{Binding RelativeSource={RelativeSource TemplatedParent},Path=Content}"></TextBlock>
      <Border.Background>
       <LinearGradientBrush StartPoint="0,0" EndPoint="0,1">
        <GradientStop Color="White" Offset="0"></GradientStop>
        <GradientStop Color="LightBlue" Offset="0.3"></GradientStop>
        <GradientStop Color="Blue" Offset="1"></GradientStop>
       </LinearGradientBrush>
      </Border.Background>
     </Border>
     <ControlTemplate.Triggers>
      <Trigger Property="IsMouseOver" Value="True">
       <Setter TargetName="bdr" Property="Background">
        <Setter.Value>
         <LinearGradientBrush StartPoint="0,0" EndPoint="0,1">
          <GradientStop Color="LightBlue" Offset="0"></GradientStop>
          <GradientStop Color="Blue" Offset="1"></GradientStop>
         </LinearGradientBrush>
        </Setter.Value>
       </Setter>
       <Setter TargetName="tbk" Property="Foreground" Value="LightYellow"></Setter>
      </Trigger>
     </ControlTemplate.Triggers>
    </ControlTemplate>
   </Setter.Value>
  </Setter>
 </Style>

 <!--TextBox樣式-->
 <Style TargetType="TextBox">
  <Setter Property="FontFamily" Value="Times New Roman"></Setter>
  <Setter Property="FontSize" Value="14"></Setter>
  <Setter Property="Template">
   <Setter.Value>
    <ControlTemplate TargetType="TextBox">
     <Border BorderBrush="Blue" BorderThickness="0.5" CornerRadius="5">
      <ScrollViewer x:Name="PART_ContentHost" Focusable="false" 
          HorizontalScrollBarVisibility="Hidden" 
          VerticalScrollBarVisibility="Hidden"></ScrollViewer>
     </Border>
    </ControlTemplate>
   </Setter.Value>
  </Setter>
 </Style>

 <!--ContextMenu樣式-->
 <Style TargetType="ContextMenu">
  <Setter Property="Template">
   <Setter.Value>
    <ControlTemplate TargetType="ContextMenu">
     <Border CornerRadius="5" BorderBrush="Blue" BorderThickness="1">
      <ItemsPresenter/>
     </Border>
    </ControlTemplate>
   </Setter.Value>
  </Setter>
 </Style>

 <!--MenuItem樣式-->
 <Style TargetType="MenuItem">
  <Setter Property="Template">
   <Setter.Value>
    <ControlTemplate TargetType="MenuItem">
     <Border Name="border" Background="LightSkyBlue" BorderThickness="0" CornerRadius="5">
      <TextBlock Name="tbk" Background="Transparent" Padding="5,5"
         Text="{TemplateBinding Header}"></TextBlock>
     </Border>
     <ControlTemplate.Triggers>
      <Trigger Property="IsMouseOver" Value="True">
       <Setter TargetName="border" Property="Background" Value="BlueViolet"></Setter>
       <Setter TargetName="tbk" Property="Foreground" Value="White"></Setter>
      </Trigger>
     </ControlTemplate.Triggers>
    </ControlTemplate>
   </Setter.Value>
  </Setter>
 </Style>
 
 <!--TextBlock樣式-->
 <Style TargetType="TextBlock">
  <Setter Property="FontFamily" Value="Times New Roman"/>
  <Setter Property="FontSize" Value="14"/>
 </Style>
</ResourceDictionary>

仔細(xì)觀察上面定義的樣式，你會(huì)發(fā)現(xiàn)在定義Window樣式的時(shí)候指定了Key，其他的Control樣式卻沒有指定Key。大家都知道，如果沒有給Style指定Key，那么這個(gè)Style會(huì)應(yīng)用到所有目標(biāo)類型(TargetType)為指定類型的Control。請(qǐng)看下面一段文字：

因?yàn)樵趽Q膚的過程中，需要?jiǎng)討B(tài)加載Window的樣式，所以用DynamicResource作綁定Style="{DynamicResource WindowStyle}"。

App.xaml

程序運(yùn)行的時(shí)候，默認(rèn)加載規(guī)則樣式的皮膚。

<Application.Resources>
  <ResourceDictionary>
   <ResourceDictionary.MergedDictionaries>
    <ResourceDictionary Source="Dictionary\Skin.RegularStyle.xaml"></ResourceDictionary>
   </ResourceDictionary.MergedDictionaries>
  </ResourceDictionary>
 </Application.Resources>

后臺(tái)代碼

/// <summary>
  /// MenuItem的執(zhí)行方法
  /// </summary>
  /// <param name="parameter"></param>
  private void RelayMenuItemEvent(object parameter)
  {
   if (parameter.ToString() == RegularStyle)
   {
    ChangeSkinResource(Skins[0]);
   }
   else if (parameter.ToString() == RoundedCornerStyle)
   {
    ChangeSkinResource(Skins[1]);
   }
  }

  /// <summary>
  /// 更換皮膚資源
  /// </summary>
  /// <param name="skin"></param>
  private void ChangeSkinResource(ResourceDictionary skin)
  {
   if (Application.Current.Resources.MergedDictionaries[0].Source.IsAbsoluteUri)
   {
    if (Application.Current.Resources.MergedDictionaries[0].Source.OriginalString != skin.Source.OriginalString)
    {
     Application.Current.Resources.MergedDictionaries[0] = skin;
    }
   }
   else
   {
    if (Application.Current.Resources.MergedDictionaries[0].Source.OriginalString.ToString('\\') != skin.Source.OriginalString.ToString('/'))
    {
     Application.Current.Resources.MergedDictionaries[0] = skin;
    }
   }
  }

運(yùn)行的時(shí)候在MainWindow上右鍵選擇皮膚樣式，就可以換膚了。

源碼下載：http://xiazai.jb51.net/201610/yuanma/WPFSkin(jb51.net).rar

鏈接：stackoverflow

以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。

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