基于WPF实现控件轮廓跑马灯动画效果
代码如下
一、创建EdgeLight.xaml代码如下。
<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:controls="clr-namespace:WPFDevelopers.Controls"> <ResourceDictionary.MergedDictionaries> <ResourceDictionary Source="Basic/ControlBasic.xaml"/> </ResourceDictionary.MergedDictionaries> <Style TargetType="{x:Type controls:EdgeLight}" BasedOn="{StaticResource ControlBasicStyle}"> <Setter Property="BorderBrush" Value="{DynamicResource PrimaryNormalSolidColorBrush}"/> <Setter Property="HorizontalContentAlignment" Value="Center"/> <Setter Property="VerticalContentAlignment" Value="Center"/> <Setter Property="HorizontalAlignment" Value="Center"/> <Setter Property="VerticalAlignment" Value="Center"/> <Setter Property="Padding" Value="20"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type controls:EdgeLight}"> <ControlTemplate.Resources> <Storyboard x:Key="EdgeLightStoryboard"> <DoubleAnimation Duration="00:00:0.5" To="1" Storyboard.TargetName="PART_Top" Storyboard.TargetProperty="ScaleX"/> <DoubleAnimation Duration="00:00:0.5" BeginTime="00:00:0.5" To="1" Storyboard.TargetName="PART_Right" Storyboard.TargetProperty="ScaleY"/> <DoubleAnimation Duration="00:00:.5" BeginTime="00:00:01" To="1" Storyboard.TargetName="PART_Bottom" Storyboard.TargetProperty="ScaleX"/> <DoubleAnimation Duration="00:00:.5" BeginTime="00:00:01.5" To="1" Storyboard.TargetName="PART_Left" Storyboard.TargetProperty="ScaleY"/> </Storyboard> </ControlTemplate.Resources> <Grid> <DockPanel LastChildFill="False"> <Rectangle DockPanel.Dock="Top" Height="{TemplateBinding LineSize}" Fill="{TemplateBinding BorderBrush}"> <Rectangle.RenderTransform> <ScaleTransform x:Name="PART_Top" ScaleX="0"/> </Rectangle.RenderTransform> </Rectangle> <Rectangle DockPanel.Dock="Right" Width="{TemplateBinding LineSize}" Fill="{TemplateBinding BorderBrush}"> <Rectangle.RenderTransform> <ScaleTransform x:Name="PART_Right" ScaleY="0"/> </Rectangle.RenderTransform> </Rectangle> <Rectangle DockPanel.Dock="Bottom" Height="{TemplateBinding LineSize}" Fill="{TemplateBinding BorderBrush}" RenderTransformOrigin="1,1"> <Rectangle.RenderTransform> <ScaleTransform x:Name="PART_Bottom" ScaleX="0"/> </Rectangle.RenderTransform> </Rectangle> <Rectangle DockPanel.Dock="Left" Width="{TemplateBinding LineSize}" Fill="{TemplateBinding BorderBrush}" RenderTransformOrigin="1,1"> <Rectangle.RenderTransform> <ScaleTransform x:Name="PART_Left" ScaleY="0"/> </Rectangle.RenderTransform> </Rectangle> </DockPanel> <ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/> </Grid> <ControlTemplate.Triggers> <Trigger Property="IsAnimation" Value="True"> <Trigger.EnterActions> <BeginStoryboard x:Name="beginAnimation" Storyboard="{StaticResource EdgeLightStoryboard}" /> </Trigger.EnterActions> <Trigger.ExitActions> <StopStoryboard BeginStoryboardName="beginAnimation" /> </Trigger.ExitActions> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> </Style> </ResourceDictionary>
二、EdgeLight.cs代码如下。
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Windows; using System.Windows.Controls; using System.Windows.Media; using System.Windows.Media.Animation; namespace WPFDevelopers.Controls { public class EdgeLight:ContentControl { public bool IsAnimation { get { return (bool)GetValue(IsAnimationProperty); } set { SetValue(IsAnimationProperty, value); } } public static readonly DependencyProperty IsAnimationProperty = DependencyProperty.Register("IsAnimation", typeof(bool), typeof(EdgeLight), new PropertyMetadata(false)); public double LineSize { get { return (double)GetValue(LineSizeProperty); } set { SetValue(LineSizeProperty, value); } } public static readonly DependencyProperty LineSizeProperty = DependencyProperty.Register("LineSize", typeof(double), typeof(EdgeLight), new PropertyMetadata(1.0d)); static EdgeLight() { DefaultStyleKeyProperty.OverrideMetadata(typeof(EdgeLight), new FrameworkPropertyMetadata(typeof(EdgeLight))); } } }
三、新建EdgeLightExample.cs代码如下。
<UserControl x:Class="WPFDevelopers.Samples.ExampleViews.EdgeLightExample" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:local="clr-namespace:WPFDevelopers.Samples.ExampleViews" xmlns:wpfdev="https://github.com/yanjinhuagood/WPFDevelopers" mc:Ignorable="d" d:DesignHeight="450" d:DesignWidth="800"> <Grid> <UniformGrid Columns="2"> <wpfdev:EdgeLight IsAnimation="{Binding ElementName=myCheckBox,Path=IsChecked}" Margin="10" LineSize="2"> <CheckBox Content="EdgeLight" x:Name="myCheckBox"/> </wpfdev:EdgeLight> <wpfdev:EdgeLight IsAnimation="{Binding ElementName=myToggleButton,Path=IsChecked}" Margin="10" BorderBrush="OrangeRed" LineSize="4"> <ToggleButton Content="EdgeLight2" x:Name="myToggleButton"/> </wpfdev:EdgeLight> </UniformGrid> </Grid> </UserControl>
效果预览
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