将形状填充颜色绑定到按钮背景刷
本文关键字：按钮 背景 绑定 颜色 填充 | 更新日期: 2023-09-27 18:06:07
我想为我的应用程序创建Close/Maximize/Minimize按钮。所以我写了这段Style:
<Style x:Key="CloseButton" TargetType="Button">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<Grid Background="Transparent">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal" />
<VisualState x:Name="MouseOver">
<Storyboard>
<ColorAnimation
Storyboard.TargetName="BackgroundColor1" Storyboard.TargetProperty="(Shape.Fill).(GradientBrush.GradientStops)[0].(GradientStop.Color)"
Duration="0"
To="#FFFF1111"/>
<ColorAnimation
Storyboard.TargetName="BackgroundColor2" Storyboard.TargetProperty="(Shape.Stroke).(GradientBrush.GradientStops)[0].(GradientStop.Color)"
Duration="0"
To="#FFFF1111"/>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Ellipse Name="BackgroundColor1" Margin="4,0,0,0" Width="18" Height="18">
<Ellipse.Fill>
<LinearGradientBrush StartPoint="0,0" EndPoint="1,1">
<GradientStop Color="{StaticResource ColorBorder}" Offset="0.2"/>
<GradientStop Color="WhiteSmoke" Offset=".9"/>
</LinearGradientBrush>
</Ellipse.Fill>
</Ellipse>
<Ellipse Name="BackgroundColor2" Margin="4,0,0,0" Width="18" Height="18">
<Ellipse.Stroke>
<LinearGradientBrush StartPoint="0,0" EndPoint="1,1">
<GradientStop Color="{StaticResource ColorBorder}" Offset="1"/>
<GradientStop Color="WhiteSmoke" Offset="0"/>
</LinearGradientBrush>
</Ellipse.Stroke>
</Ellipse>
<Ellipse Margin="4,0,0,8" Width="7" Height="7">
<Ellipse.Fill>
<LinearGradientBrush StartPoint="1,0" EndPoint="0,1">
<GradientStop Color="WhiteSmoke" Offset="0"/>
<GradientStop Color="Transparent" Offset="0.7"/>
</LinearGradientBrush>
</Ellipse.Fill>
</Ellipse>
<Ellipse Margin="4,0,0,0" Width="18" Height="18" StrokeThickness="2" StrokeLineJoin="Round">
<Ellipse.Stroke>
<LinearGradientBrush StartPoint="1,0" EndPoint="1,1">
<GradientStop Color="Black" Offset="0"/>
<GradientStop Color="Transparent" Offset="1"/>
</LinearGradientBrush>
</Ellipse.Stroke>
</Ellipse>
<Ellipse Margin="4,0,0,0" Width="18" Height="18" StrokeThickness="1" StrokeLineJoin="Round">
<Ellipse.Stroke>
<LinearGradientBrush StartPoint="1,0" EndPoint="1,1">
<GradientStop Color="#FF333333" Offset="1"/>
<GradientStop Color="Transparent" Offset="0.5"/>
</LinearGradientBrush>
</Ellipse.Stroke>
</Ellipse>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
现在我有3个这个样式的副本，改变MouseOver的颜色，像这样:
<ColorAnimation Storyboard.TargetName="BackgroundColor1" Storyboard.TargetProperty="(Shape.Fill).(GradientBrush.GradientStops)[0].(GradientStop.Color)"
<!-- Just "To" Color changes is each button -->
To="#FFFF1111"/>
但是我只想把这个颜色绑定到Button Background color，这样我就不需要有3个重复的Style。我做了一些RelativeSource绑定，但没有工作。
Q1:如何将此梯度绑定到按钮背景?
Q2:是否有其他类型的控制器可以做到这一点和有颜色属性?
提前感谢。
编辑:过渡代码:
<VisualStateGroup.Transitions>
<VisualTransition To="MouseOver" GeneratedDuration="0:0:0.2"/>
<VisualTransition From="MouseOver" GeneratedDuration="0:0:0.2"/>
</VisualStateGroup.Transitions>
如果是我，我可能会像下面这样做，这样你就可以更容易地传递Brush, Color, ColorName等，而不是换出GradientStop，一次只处理一个对象。因为填充只接受颜色。Brush和Fill是不同的野兽。;)
之类的;
风格;
<Style x:Key="CloseButton2" TargetType="{x:Type Button}">
<Setter Property="Background" Value="Red"/>
<Setter Property="HorizontalContentAlignment" Value="Center"/>
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Grid>
<!-- Left this here in case you want to use it later for something. Just set Visibility. -->
<Border x:Name="border" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}"
Background="{TemplateBinding Background}" SnapsToDevicePixels="true" Visibility="Collapsed">
<ContentPresenter x:Name="contentPresenter" Focusable="False"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}"
RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
</Border>
<!-- Your new magic. -->
<Border x:Name="buttonLight" Opacity="0"
Background="{TemplateBinding Background}" CornerRadius="50"
Width="18" Height="18" Margin="4,0,0,0"/>
<Ellipse Name="BackgroundColor1" Margin="4,0,0,0" Width="18" Height="18">
<Ellipse.Fill>
<LinearGradientBrush StartPoint="0,0" EndPoint="1,1">
<GradientStop Color="Transparent" Offset="0.2"/>
<GradientStop Color="WhiteSmoke" Offset=".9"/>
</LinearGradientBrush>
</Ellipse.Fill>
</Ellipse>
<Ellipse Name="BackgroundColor2" Margin="4,0,0,0" Width="18" Height="18">
<Ellipse.Stroke>
<LinearGradientBrush StartPoint="0,0" EndPoint="1,1">
<GradientStop Color="Transparent" Offset="1"/>
<GradientStop Color="WhiteSmoke" Offset="0"/>
</LinearGradientBrush>
</Ellipse.Stroke>
</Ellipse>
<Ellipse Margin="4,0,0,8" Width="7" Height="7">
<Ellipse.Fill>
<LinearGradientBrush StartPoint="1,0" EndPoint="0,1">
<GradientStop Color="WhiteSmoke" Offset="0"/>
<GradientStop Color="Transparent" Offset="0.7"/>
</LinearGradientBrush>
</Ellipse.Fill>
</Ellipse>
<Ellipse Margin="4,0,0,0" Width="18" Height="18" StrokeThickness="2" StrokeLineJoin="Round">
<Ellipse.Stroke>
<LinearGradientBrush StartPoint="1,0" EndPoint="1,1">
<GradientStop Color="Black" Offset="0"/>
<GradientStop Color="Transparent" Offset="1"/>
</LinearGradientBrush>
</Ellipse.Stroke>
</Ellipse>
<Ellipse Margin="4,0,0,0" Width="18" Height="18" StrokeThickness="1" StrokeLineJoin="Round">
<Ellipse.Stroke>
<LinearGradientBrush StartPoint="1,0" EndPoint="1,1">
<GradientStop Color="#FF333333" Offset="1"/>
<GradientStop Color="Transparent" Offset="0.5"/>
</LinearGradientBrush>
</Ellipse.Stroke>
</Ellipse>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="true">
<Setter Property="Opacity" TargetName="buttonLight" Value="1"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
然后，实例示例;
<StackPanel VerticalAlignment="Center" HorizontalAlignment="Center">
<Button Style="{DynamicResource CloseButton2}"/>
<Button Background="Green"
Style="{DynamicResource CloseButton2}" Margin="0,10"/>
<Button Background="Blue"
Style="{DynamicResource CloseButton2}"/>
</StackPanel>
希望这有帮助，干杯。
更多信息;
你仍然可以应用你的过渡，对于这个;您只需删除触发器(这部分在前一个示例中);
<!-- DELETE THIS PART -->
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="true">
<Setter Property="Opacity" TargetName="buttonLight" Value="1"/>
</Trigger>
</ControlTemplate.Triggers>
然后把你的VisualStateManager放到Grid里面的某个地方我更喜欢在<Grid>标签的右上方;
<!-- Invoke VisualStateManager to handle it instead of Trigger as requested. -->
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualStateGroup.Transitions>
<VisualTransition To="MouseOver" GeneratedDuration="0:0:0.2"/>
<VisualTransition From="MouseOver" GeneratedDuration="0:0:0.2"/>
</VisualStateGroup.Transitions>
<VisualState x:Name="Normal"/>
<VisualState x:Name="MouseOver">
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Opacity)"
Storyboard.TargetName="buttonLight"
Duration="0:0:1">
<EasingDoubleKeyFrame KeyTime="0" Value="1"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Pressed"/>
<VisualState x:Name="Disabled"/>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
…就这样，你完成了，仍然有颜色功能等:)