我无法将鼠标悬停样式应用于ContentPresenter内部的Path。
我有一个包含ContentPresenter的按钮样式:
<Style x:Key="ContentButton" TargetType="{x:Type Button}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<ContentPresenter
x:Name="contentPresenter"
Content="{TemplateBinding Content}">
<ContentPresenter.Resources>
<Style TargetType="{x:Type Path}"
BasedOn="{StaticResource ContentButtonPathStyle}"/>
</ContentPresenter.Resources>
</ContentPresenter>
这是一种样式,可以在路径上实现鼠标悬停效果:
<Style x:Key="ContentButtonPathStyle" TargetType="{x:Type Path}">
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Fill" Value="#FF00FF10"/>
<Setter Property="Stroke" Value="Red"/>
<Setter Property="StrokeThickness" Value="6"/>
</Trigger>
</Style.Triggers>
<Setter Property="Stroke" Value="Red"/>
<Setter Property="Fill">
<Setter.Value>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FFB4B3E7" Offset="0"/>
<GradientStop Color="#FF0800FF" Offset="1"/>
</LinearGradientBrush>
</Setter.Value>
</Setter>
</Style>
我还有一个图标资源文件,其中包含一个带有Viewbox的路径:
<Viewbox x:Key="MyIcon">
<Grid>
<Path Data="M78,296 L37.5,306.5 45.5,354.5 123.5,343.5 z" />
</Grid>
</Viewbox>
最后,我创建一个按钮并将Viewbox资源分配给内容:
<Button Style="{DynamicResource ContentButton}">
<ContentPresenter Content="{DynamicResource MyIcon}"/>
</Button>
使用“BasedOn”来为ContentPresenter的内容设置样式是我在这里发现的一种技巧:http://social.msdn.microsoft.com/forums/en-US/wpf/thread/412b1747-60e9-4b9a-8f8f-bd56f3aff875/。然而,这对我不起作用……我花了很多时间来尝试解决这个问题!有什么想法吗?谢谢!
好的,基于Mackho的出色回答,这是我的最终XAML。我还添加了一个DataTrigger来处理IsPressed,效果很棒!希望能帮助到其他人……首先是样式:
<Style x:Key="ContentButtonPathStyle" TargetType="{x:Type Path}">
<Style.Triggers>
<DataTrigger Binding="{Binding RelativeSource=
{RelativeSource Mode=FindAncestor, AncestorType={x:Type Button}}, Path=IsMouseOver}" Value="True">
<Setter Property="Fill" Value="Yellow"/>
<Setter Property="Stroke" Value="Blue"/>
</DataTrigger>
<DataTrigger Binding="{Binding RelativeSource=
{RelativeSource Mode=FindAncestor, AncestorType={x:Type Button}}, Path=IsPressed}" Value="True">
<Setter Property="Fill" Value="Red"/>
<Setter Property="Stroke" Value="Black"/>
</DataTrigger>
</Style.Triggers>
<Setter Property="Fill" Value="Green"/>
<Setter Property="Stroke" Value="Red"/>
</Style>
下一步,是图标本身:
<Viewbox Stretch="Fill" x:Shared="False" x:Key="MyIcon">
<Path StrokeThickness="6" Data="M160.26077,0.5 L196.5,36.739223 232.73923,0.5 251.12399,18.884777 214.88478,55.124001 251.12399,91.363222 232.73923,109.748 196.5,73.508779 160.26077,109.748 141.87601,91.363222 178.11522,55.124001 141.87601,18.884777 z" Stretch="Fill"/>
</Viewbox>
然后,模板如下:
<Style x:Key="ContentButton" TargetType="{x:Type Button}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<ControlTemplate.Resources>
<Style TargetType="{x:Type Path}" BasedOn="{StaticResource ContentButtonPathStyle}"/>
</ControlTemplate.Resources>
<Grid Background="Transparent"><ContentPresenter /></Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
最后,让我们放置几个使用模板和样式的按钮:
<Grid>
<Button Style="{DynamicResource ContentButton}" HorizontalAlignment="Left" Width="128" Height="128" VerticalAlignment="Top" Margin="85.5,87,0,0">
<ContentPresenter Content="{DynamicResource MyIcon}" d:IsLocked="True"/>
</Button>
<Button Style="{DynamicResource ContentButton}" Height="64" VerticalAlignment="Top" Margin="0,87,204.5,0" HorizontalAlignment="Right" Width="64">
<ContentPresenter Content="{DynamicResource MyIcon}" d:IsLocked="True"/>
</Button>
<Button Style="{DynamicResource ContentButton}" Height="96" VerticalAlignment="Bottom" Margin="234,0,0,66.5" HorizontalAlignment="Left" Width="96">
<ContentPresenter Content="{DynamicResource MyIcon}" d:IsLocked="True"/>
</Button>
<Button Style="{DynamicResource ContentButton}" Height="32" VerticalAlignment="Bottom" Margin="0,0,138.5,130.5" HorizontalAlignment="Right" Width="32">
<ContentPresenter Content="{DynamicResource MyIcon}" d:IsLocked="True"/>
</Button>
</Grid>