一．前言.效果图
申明：WPF自定义控件与样式是一个系列文章，前后是有些关联的，但大多是按照由简到繁的顺序逐步发布的等，若有不明白的地方可以参考本系列前面的文章，文末附有部分文章链接。
还是先看看效果图吧：
定义Button按钮名称叫FButton，主要是集成了字体图标（参考上一篇：WPF自定义控件与样式1-矢量字体图标(iconfont)）。其实在WPF里，要实现本文FButton的需求，完全可以不用自定义控件，使用样式、模板就可以搞定了的。
二．按钮FButton控件定义
2.1 FButton继承自微软基础控件Button （C#代码）
FButton继承自微软基础控件Button，没有什么逻辑代码，主要扩展了几个属性：
- 控件外观控制的属性，如圆角、鼠标悬浮前景色背景色、是否开启动画（鼠标悬停时小图标转一圈，移开又转回去）、鼠标按下颜色等；
- 字体图标相关属性，如字符值、字体图标大小、字体图标间距等。
详见代码：
/// <summary>
/// FButton.xaml 的交互逻辑
/// </summary> public partial class FButton : Button
{
public static readonly DependencyProperty PressedBackgroundProperty =
DependencyProperty.Register("PressedBackground", typeof(Brush), typeof(FButton), new PropertyMetadata(Brushes.DarkBlue));
/// <summary>
/// 鼠标按下背景样式
/// </summary>
public Brush PressedBackground
{
get { return (Brush)GetValue(PressedBackgroundProperty); }
set { SetValue(PressedBackgroundProperty, value); }
} public static readonly DependencyProperty PressedForegroundProperty =
DependencyProperty.Register("PressedForeground", typeof(Brush), typeof(FButton), new PropertyMetadata(Brushes.White));
/// <summary>
/// 鼠标按下前景样式（图标、文字）
/// </summary>
public Brush PressedForeground
{
get { return (Brush)GetValue(PressedForegroundProperty); }
set { SetValue(PressedForegroundProperty, value); }
} public static readonly DependencyProperty MouseOverBackgroundProperty =
DependencyProperty.Register("MouseOverBackground", typeof(Brush), typeof(FButton), new PropertyMetadata(Brushes.RoyalBlue));
/// <summary>
/// 鼠标进入背景样式
/// </summary>
public Brush MouseOverBackground
{
get { return (Brush)GetValue(MouseOverBackgroundProperty); }
set { SetValue(MouseOverBackgroundProperty, value); }
} public static readonly DependencyProperty MouseOverForegroundProperty =
DependencyProperty.Register("MouseOverForeground", typeof(Brush), typeof(FButton), new PropertyMetadata(Brushes.White));
/// <summary>
/// 鼠标进入前景样式
/// </summary>
public Brush MouseOverForeground
{
get { return (Brush)GetValue(MouseOverForegroundProperty); }
set { SetValue(MouseOverForegroundProperty, value); }
} public static readonly DependencyProperty FIconProperty =
DependencyProperty.Register("FIcon", typeof(string), typeof(FButton), new PropertyMetadata("\ue604"));
/// <summary>
/// 按钮字体图标编码
/// </summary>
public string FIcon
{
get { return (string)GetValue(FIconProperty); }
set { SetValue(FIconProperty, value); }
} public static readonly DependencyProperty FIconSizeProperty =
DependencyProperty.Register("FIconSize", typeof(int), typeof(FButton), new PropertyMetadata());
/// <summary>
/// 按钮字体图标大小
/// </summary>
public int FIconSize
{
get { return (int)GetValue(FIconSizeProperty); }
set { SetValue(FIconSizeProperty, value); }
} public static readonly DependencyProperty FIconMarginProperty = DependencyProperty.Register(
"FIconMargin", typeof(Thickness), typeof(FButton), new PropertyMetadata(new Thickness(, , , )));
/// <summary>
/// 字体图标间距
/// </summary>
public Thickness FIconMargin
{
get { return (Thickness)GetValue(FIconMarginProperty); }
set { SetValue(FIconMarginProperty, value); }
} public static readonly DependencyProperty AllowsAnimationProperty = DependencyProperty.Register(
"AllowsAnimation", typeof(bool), typeof(FButton), new PropertyMetadata(true));
/// <summary>
/// 是否启用Ficon动画
/// </summary>
public bool AllowsAnimation
{
get { return (bool)GetValue(AllowsAnimationProperty); }
set { SetValue(AllowsAnimationProperty, value); }
} public static readonly DependencyProperty CornerRadiusProperty =
DependencyProperty.Register("CornerRadius", typeof(CornerRadius), typeof(FButton), new PropertyMetadata(new CornerRadius()));
/// <summary>
/// 按钮圆角大小,左上，右上，右下，左下
/// </summary>
public CornerRadius CornerRadius
{
get { return (CornerRadius)GetValue(CornerRadiusProperty); }
set { SetValue(CornerRadiusProperty, value); }
} public static readonly DependencyProperty ContentDecorationsProperty = DependencyProperty.Register(
"ContentDecorations", typeof(TextDecorationCollection), typeof(FButton), new PropertyMetadata(null));
public TextDecorationCollection ContentDecorations
{
get { return (TextDecorationCollection)GetValue(ContentDecorationsProperty); }
set { SetValue(ContentDecorationsProperty, value); }
} static FButton()
{
DefaultStyleKeyProperty.OverrideMetadata(typeof(FButton), new FrameworkPropertyMetadata(typeof(FButton)));
}
}
2.2 FButton控件模板定义
模板内容分为两部分，第一部分为为基本结构，第二部分就是触发器，用触发器实现按钮不同状态的样式控制，详见代码：
<!--FButton模板-->
<ControlTemplate x:Key="FButton_Template" TargetType="{x:Type local:FButton}">
<Border x:Name="border" Background="{Binding RelativeSource={RelativeSource Mode=TemplatedParent}, Path= Background}"
Height="{Binding RelativeSource={RelativeSource Mode=TemplatedParent}, Path=Height}"
CornerRadius="{Binding RelativeSource={RelativeSource Mode=TemplatedParent}, Path=CornerRadius}"
Width="{Binding RelativeSource={RelativeSource Mode=TemplatedParent}, Path=Width}">
<!--Icon/Text-->
<StackPanel Orientation="Horizontal" VerticalAlignment="Center"
Margin="{TemplateBinding Padding}"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}">
<TextBlock x:Name="icon" Margin="{Binding RelativeSource={RelativeSource Mode=TemplatedParent}, Path=FIconMargin}"
RenderTransformOrigin="0.5,0.5" Style="{StaticResource FIcon}"
Text="{Binding RelativeSource={RelativeSource Mode=TemplatedParent}, Path= FIcon}"
FontSize="{Binding RelativeSource={RelativeSource Mode=TemplatedParent}, Path= FIconSize}"
Foreground="{Binding RelativeSource={RelativeSource Mode=TemplatedParent}, Path= Foreground}">
<TextBlock.RenderTransform>
<RotateTransform x:Name="transIcon" Angle="0"/>
</TextBlock.RenderTransform>
</TextBlock> <TextBlock VerticalAlignment="Center" x:Name="txt"
TextDecorations="{Binding RelativeSource={RelativeSource Mode=TemplatedParent}, Path=ContentDecorations}"
Text="{Binding RelativeSource={RelativeSource Mode=TemplatedParent}, Path=Content}"
FontSize="{Binding RelativeSource={RelativeSource Mode=TemplatedParent}, Path=FontSize}"
Foreground="{Binding RelativeSource={RelativeSource Mode=TemplatedParent}, Path=Foreground}"></TextBlock>
</StackPanel>
</Border>
<!--触发器-->
<ControlTemplate.Triggers>
<!--设置鼠标进入时的背景、前景样式-->
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="{Binding RelativeSource={RelativeSource Mode=TemplatedParent},
Path=MouseOverBackground}" TargetName="border" />
<Setter Property="Foreground" Value="{Binding RelativeSource={RelativeSource Mode=TemplatedParent},
Path=MouseOverForeground}" TargetName="icon"/>
<Setter Property="Foreground" Value="{Binding RelativeSource={RelativeSource Mode=TemplatedParent},
Path=MouseOverForeground}" TargetName="txt"/>
</Trigger>
<!--Ficon的动画触发器-->
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsMouseOver" Value="true"></Condition>
<Condition Property="AllowsAnimation" Value="true"></Condition>
</MultiTrigger.Conditions>
<MultiTrigger.EnterActions>
<BeginStoryboard>
<Storyboard>
<DoubleAnimation Storyboard.TargetName="transIcon" Storyboard.TargetProperty="Angle" To="180" Duration="0:0:0.2" />
</Storyboard>
</BeginStoryboard>
</MultiTrigger.EnterActions>
<MultiTrigger.ExitActions>
<BeginStoryboard>
<Storyboard>
<DoubleAnimation Storyboard.TargetName="transIcon" Storyboard.TargetProperty="Angle" To="0" Duration="0:0:0.2" />
</Storyboard>
</BeginStoryboard>
</MultiTrigger.ExitActions>
</MultiTrigger>
<!--鼠标按下时的前景、背景样式-->
<Trigger Property="IsPressed" Value="True">
<Setter Property="Background" Value="{Binding RelativeSource={RelativeSource Mode=TemplatedParent},
Path=PressedBackground}" TargetName="border" />
<Setter Property="Foreground" Value="{Binding RelativeSource={RelativeSource Mode=TemplatedParent},
Path=PressedForeground}" TargetName="icon"/>
<Setter Property="Foreground" Value="{Binding RelativeSource={RelativeSource Mode=TemplatedParent},
Path=PressedForeground}" TargetName="txt"/>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Opacity" Value="0.5" TargetName="border"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
2.3 FButton基本样式
样式定义代码：
<!--默认样式-->
<Style TargetType="{x:Type local:FButton}">
<Setter Property="Background" Value="{StaticResource ButtonBackground}" />
<Setter Property="Foreground" Value="{StaticResource ButtonForeground}" />
<Setter Property="MouseOverBackground" Value="{StaticResource ButtonMouseOverBackground}" />
<Setter Property="MouseOverForeground" Value="{StaticResource ButtonMouseOverForeground}" />
<Setter Property="PressedBackground" Value="{StaticResource ButtonPressedBackground}" />
<Setter Property="PressedForeground" Value="{StaticResource ButtonPressedForeground}" />
<Setter Property="HorizontalContentAlignment" Value="Center" />
<Setter Property="Width" Value="100" />
<Setter Property="Height" Value="30" />
<Setter Property="FontSize" Value="13" />
<Setter Property="CornerRadius" Value="0" />
<Setter Property="FIconSize" Value="22" />
<Setter Property="Template" Value="{StaticResource FButton_Template}"/>
<Setter Property="Padding" Value="3,1,3,1" />
<Setter Property="Content" Value="{x:Null}" />
<Setter Property="FIconMargin" Value="0,0,5,0" />
<Setter Property="AllowsAnimation" Value="False" />
</Style>
基本按钮的效果，参考（一．前言-效果图），示例代码：
<StackPanel >
<core:FButton FIcon="" Margin="3">系统换转</core:FButton>
<core:FButton FIcon="" Margin="3" Width="140" Height="40" Background="#771C79" MouseOverBackground="#F20BA0" Click="FButton_Click" >WaitingBox</core:FButton>
<core:FButton FIcon="" Margin="3" Width="140" Height="40" Background="#12B512" IsDefault="True" MouseOverBackground="#08EE08" Click="FButton_Click_WindowBase">WindowBase</core:FButton> <core:FButton FIcon="" Margin="5,0,0,0" CornerRadius="16,0,0,16" AllowsAnimation="True" Click="FButton_Click_Info">Info</core:FButton>
<core:FButton FIcon="" CornerRadius="0" Click="FButton_Click_Question">Question</core:FButton>
<core:FButton FIcon="" CornerRadius="0" Click="FButton_Click_Warning">Warining</core:FButton>
<core:FButton FIcon="" CornerRadius="0,16,16,0" AllowsAnimation="True" Click="FButton_Click_Error">Error</core:FButton>
</StackPanel>
2.4 FButton透明背景样式
背景透明效果的按钮样式
<!--背景透明的FButton样式-->
<Style x:Key="FButton_Transparency" TargetType="{x:Type local:FButton}">
<Setter Property="Background" Value="Transparent" />
<Setter Property="MouseOverBackground" Value="Transparent" />
<Setter Property="PressedBackground" Value="Transparent" />
<Setter Property="Foreground" Value="{StaticResource TextForeground}" />
<Setter Property="MouseOverForeground" Value="{StaticResource MouseOverForeground}" />
<Setter Property="PressedForeground" Value="{StaticResource PressedForeground}" />
<Setter Property="HorizontalContentAlignment" Value="Center" />
<Setter Property="Height" Value="Auto" />
<Setter Property="Width" Value="Auto" />
<Setter Property="CornerRadius" Value="0" />
<Setter Property="FontSize" Value="13" />
<Setter Property="FIconSize" Value="20" />
<Setter Property="Template" Value="{StaticResource FButton_Template}"/>
<Setter Property="Padding" Value="3,1,3,1" />
<Setter Property="Content" Value="{x:Null}" />
<Setter Property="FIconMargin" Value="0,0,2,0" />
<Setter Property="AllowsAnimation" Value="False" />
<Setter Property="Cursor" Value="Hand" />
</Style>
示例及效果：
<core:FButton FIcon="" Margin="5" FIconMargin="0" FIconSize="30" Style="{StaticResource FButton_Transparency}" ></core:FButton>
<core:FButton FIcon="" Margin="5" Style="{StaticResource FButton_Transparency}"></core:FButton>
<core:FButton FIcon="" Margin="5" Style="{StaticResource FButton_Transparency}" IsEnabled="False"></core:FButton>
<core:FButton FIcon="" Margin="3" Style="{StaticResource FButton_Transparency}">如何开启调试模式?</core:FButton>
<core:FButton FIcon="" Margin="3" Style="{StaticResource FButton_Transparency}" IsEnabled="False">设备检测</core:FButton>
<core:FButton FIcon="" Margin="3" Style="{StaticResource FButton_Transparency}">爸爸回来了</core:FButton>
2.3 类似LinkButton（超链接）样式
样式定义：
<!--LinkButton的FButton样式，默认无FIcon-->
<Style x:Key="FButton_LinkButton" TargetType="{x:Type local:FButton}">
<Setter Property="Background" Value="Transparent" />
<Setter Property="MouseOverBackground" Value="Transparent" />
<Setter Property="PressedBackground" Value="Transparent" />
<Setter Property="Foreground" Value="{StaticResource LinkForeground}" />
<Setter Property="MouseOverForeground" Value="{StaticResource MouseOverForeground}" />
<Setter Property="PressedForeground" Value="{StaticResource PressedForeground}" />
<Setter Property="HorizontalContentAlignment" Value="Center" />
<Setter Property="Height" Value="Auto" />
<Setter Property="Width" Value="Auto" />
<Setter Property="CornerRadius" Value="0" />
<Setter Property="FontSize" Value="13" />
<Setter Property="FIconSize" Value="20" />
<Setter Property="Template" Value="{StaticResource FButton_Template}"/>
<Setter Property="Padding" Value="3,1,3,1" />
<Setter Property="Content" Value="{x:Null}" />
<Setter Property="FIconMargin" Value="0" />
<Setter Property="FIcon" Value="" />
<Setter Property="AllowsAnimation" Value="False" />
<Setter Property="ContentDecorations" Value="Underline" />
<Setter Property="Cursor" Value="Hand" />
</Style>
示例及效果：
<core:FButton Margin="3,15" Style="{StaticResource FButton_LinkButton}" >如何开启调试模式?</core:FButton>
<core:FButton FIcon="" Margin="3" Style="{StaticResource FButton_LinkButton}">设备检测</core:FButton>
<core:FButton Margin="3" Style="{StaticResource FButton_LinkButton}">爸爸回来了</core:FButton>
附录：参考引用
WPF自定义控件与样式(1)-矢量字体图标(iconfont)
WPF自定义控件与样式(3)-TextBox & RichTextBox & PasswordBox样式、水印、Label标签、功能扩展
WPF自定义控件与样式(4)-CheckBox/RadioButton自定义样式
WPF自定义控件与样式(5)-Calendar/DatePicker日期控件自定义样式及扩展
WPF自定义控件与样式(6)-ScrollViewer与ListBox自定义样式
WPF自定义控件与样式(7)-列表控件DataGrid与ListView自定义样式
WPF自定义控件与样式(8)-ComboBox与自定义多选控件MultComboBox
WPF自定义控件与样式(9)-树控件TreeView与菜单Menu-ContextMenu
WPF自定义控件与样式(10)-进度控件ProcessBar自定义样
WPF自定义控件与样式(11)-等待/忙/正在加载状态-控件实现
WPF自定义控件与样式(12)-缩略图ThumbnailImage /gif动画图/图片列表
WPF自定义控件与样式(13)-自定义窗体Window & 自适应内容大小消息框MessageBox
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