WPF自定义控件与样式(2)-自定义按钮FButton

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：

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(20));
        /// <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(0, 1, 3, 1)));
        /// <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(2)));
        /// <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="&#xe602;" Margin="3">系统换转</core:FButton>
            <core:FButton FIcon="&#xe628;" Margin="3" Width="140" Height="40" Background="#771C79" MouseOverBackground="#F20BA0"  Click="FButton_Click" >WaitingBox</core:FButton>
            <core:FButton FIcon="&#xe629;" Margin="3" Width="140" Height="40" Background="#12B512" IsDefault="True" MouseOverBackground="#08EE08" Click="FButton_Click_WindowBase">WindowBase</core:FButton>

            <core:FButton FIcon="&#xe64f;" Margin="5,0,0,0" CornerRadius="16,0,0,16" AllowsAnimation="True" Click="FButton_Click_Info">Info</core:FButton>
            <core:FButton FIcon="&#xe628;" CornerRadius="0" Click="FButton_Click_Question">Question</core:FButton>
            <core:FButton FIcon="&#xe628;" CornerRadius="0" Click="FButton_Click_Warning">Warining</core:FButton>
            <core:FButton FIcon="&#xe629;" 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="&#xe627;" Margin="5" FIconMargin="0" FIconSize="30" Style="{StaticResource FButton_Transparency}" ></core:FButton>
            <core:FButton FIcon="&#xe628;" Margin="5" Style="{StaticResource FButton_Transparency}"></core:FButton>
            <core:FButton FIcon="&#xe629;" Margin="5" Style="{StaticResource FButton_Transparency}" IsEnabled="False"></core:FButton>


            <core:FButton FIcon="&#xe60e;" Margin="3" Style="{StaticResource FButton_Transparency}">如何开启调试模式?</core:FButton>
            <core:FButton FIcon="&#xe617;" Margin="3" Style="{StaticResource FButton_Transparency}" IsEnabled="False">设备检测</core:FButton>
            <core:FButton FIcon="&#xe629;" 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="&#xe617;" 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>