首页 > 编程 > C# > 正文

WPF换肤设计原理浅析

2020-01-24 00:58:27
字体:
来源:转载
供稿:网友

WPF换肤的设计原理,利用资源字典为每种皮肤资源添加不同的样式,在后台切换皮肤资源文件。

截图


上图中,第一张图采用规则样式,第二张图采用不规则样式,截图的时候略有瑕疵。

资源字典

规则样式资源Skin.RegularStyle.xaml

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"> <!--Window样式--> <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样式--> <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样式--> <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样式--> <Style TargetType="ContextMenu">  <Setter Property="Template">   <Setter.Value>    <ControlTemplate TargetType="ContextMenu">     <Border BorderBrush="Green" BorderThickness="1">      <ItemsPresenter/>     </Border>    </ControlTemplate>   </Setter.Value>  </Setter> </Style> <!--MenuItem样式--> <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样式--> <Style TargetType="TextBlock">  <Setter Property="FontFamily" Value="SketchFlow Print"/>  <Setter Property="FontSize" Value="14"/> </Style></ResourceDictionary>不规则样式资源Skin.RoundedCornerStyle.xaml<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"> <!--Window样式--> <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样式--> <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样式--> <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样式--> <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样式--> <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样式--> <Style TargetType="TextBlock">  <Setter Property="FontFamily" Value="Times New Roman"/>  <Setter Property="FontSize" Value="14"/> </Style></ResourceDictionary>

仔细观察上面定义的样式,你会发现在定义Window样式的时候指定了Key,其他的Control样式却没有指定Key。大家都知道,如果没有给Style指定Key,那么这个Style会应用到所有目标类型(TargetType)为指定类型的Control。请看下面一段文字:

因为在换肤的过程中,需要动态加载Window的样式,所以用DynamicResource作绑定Style="{DynamicResource WindowStyle}"。

App.xaml

程序运行的时候,默认加载规则样式的皮肤。

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

后台代码

/// <summary>  /// MenuItem的执行方法  /// </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>  /// 更换皮肤资源  /// </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;    }   }  }

运行的时候在MainWindow上右键选择皮肤样式,就可以换肤了。

源码下载:http://xiazai.VeVB.COm/201610/yuanma/WPFSkin(VeVB.COm).rar

链接:stackoverflow

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持武林网。

发表评论 共有条评论
用户名: 密码:
验证码: 匿名发表