<Window?x:Class="ScreenSaver.MainWindow"
????????xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
????????xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
????????xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
????????xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
????????xmlns:system="clr-namespace:System;assembly=mscorlib"
????????xmlns:drawing="http://www.microsoft.net/drawing"
????????xmlns:local="clr-namespace:ScreenSaver"
????????mc:Ignorable="d"?WindowStyle="None"
????????Title="MainWindow"?Height="450"?Width="800">
????<Grid?x:Name="MainGrid">
????????<drawing:PanningItems?ItemsSource="{Binding?stringCollection,RelativeSource={RelativeSource?AncestorType=local:MainWindow}}"
??????????????????????????????x:Name="MyPanningItems">
????????????<drawing:PanningItems.ItemTemplate>
????????????????<DataTemplate>
????????????????????<Rectangle>
????????????????????????<Rectangle.Fill>
????????????????????????????<ImageBrush?ImageSource="{Binding?.}"/>
????????????????????????</Rectangle.Fill>
????????????????????</Rectangle>
????????????????</DataTemplate>
????????????</drawing:PanningItems.ItemTemplate>
????????</drawing:PanningItems>
????????<Grid??HorizontalAlignment="Center"?
???????????????VerticalAlignment="Top"
????????????????Margin="0,50,0,0">
????????????<Grid.RowDefinitions>
????????????????<RowDefinition/>
????????????????<RowDefinition/>
????????????</Grid.RowDefinitions>
????????????<Grid.Resources>
????????????????<Style?TargetType="TextBlock">
????????????????????<Setter?Property="FontSize"?Value="90"/>
????????????????????<Setter?Property="FontWeight"?Value="Black"/>
????????????????????<Setter?Property="Foreground"?Value="White"/>
????????????????</Style>
????????????</Grid.Resources>
????????????<WrapPanel>
????????????????<TextBlock?Text="{Binding?Hour,RelativeSource={RelativeSource?AncestorType=local:MainWindow}}"/>
????????????????<TextBlock?Text=":"?x:Name="PART_TextBlock">
????????????????????<TextBlock.Triggers>
????????????????????????<EventTrigger?RoutedEvent="FrameworkElement.Loaded">
????????????????????????????<BeginStoryboard>
????????????????????????????????<Storyboard>
????????????????????????????????????<DoubleAnimation?Duration="00:00:01"
?????????????????????????????????????????????????From="1"
?????????????????????????????????????????????????To="0"
?????????????????????????????????????????????????Storyboard.TargetName="PART_TextBlock"
?????????????????????????????????????????????????Storyboard.TargetProperty="Opacity"
?????????????????????????????????????????????????RepeatBehavior="Forever"
?????????????????????????????????????????????????FillBehavior="Stop"/>
????????????????????????????????</Storyboard>
????????????????????????????</BeginStoryboard>
????????????????????????</EventTrigger>
????????????????????</TextBlock.Triggers>
????????????????</TextBlock>
????????????????<TextBlock?Text="{Binding?Minute,RelativeSource={RelativeSource?AncestorType=local:MainWindow}}"/>
????????????</WrapPanel>
????????????<TextBlock?Grid.Row="1"?FontSize="45"?HorizontalAlignment="Center"?Text="{Binding?Date,RelativeSource={RelativeSource?AncestorType=local:MainWindow}}"/>
????????</Grid>
????</Grid>
</Window>

using?System;
using?System.Collections.ObjectModel;
using?System.Globalization;
using?System.IO;
using?System.Windows;
using?System.Windows.Input;
using?System.Windows.Threading;

namespace?ScreenSaver
{
????///?<summary>
????///?????MainWindow.xaml?的交互邏輯
????///?</summary>
????public?partial?class?MainWindow?:?Window
????{
????????public?static?readonly?DependencyProperty?stringCollectionProperty?=
????????????DependencyProperty.Register("stringCollection",?typeof(ObservableCollection<string>),?typeof(MainWindow),
????????????????new?PropertyMetadata(null));

????????public?static?readonly?DependencyProperty?HourProperty?=
????????????DependencyProperty.Register("Hour",?typeof(string),?typeof(MainWindow),?new?PropertyMetadata(null));

????????public?static?readonly?DependencyProperty?MinuteProperty?=
????????????DependencyProperty.Register("Minute",?typeof(string),?typeof(MainWindow),?new?PropertyMetadata(null));

????????public?static?readonly?DependencyProperty?SecondProperty?=
????????????DependencyProperty.Register("Second",?typeof(string),?typeof(MainWindow),?new?PropertyMetadata(null));

????????public?static?readonly?DependencyProperty?DateProperty?=
????????????DependencyProperty.Register("Date",?typeof(string),?typeof(MainWindow),?new?PropertyMetadata());

????????private?readonly?DispatcherTimer?timer?=?new?DispatcherTimer();

????????public?MainWindow()
????????{
????????????InitializeComponent();
????????????Loaded?+=?delegate
????????????{
????????????????WindowState?=?WindowState.Maximized;
????????????????Mouse.OverrideCursor?=?Cursors.None;
????????????????var?date?=?DateTime.Now;
????????????????Hour?=?date.ToString("HH");
????????????????Minute?=?date.ToString("mm");
????????????????Date?=
????????????????????$"{date.Month}?/?{date.Day}???{CultureInfo.CurrentCulture.DateTimeFormat.GetDayName(date.DayOfWeek)}";
????????????????stringCollection?=?new?ObservableCollection<string>();
????????????????var?path?=?Path.Combine(AppDomain.CurrentDomain.BaseDirectory,?"Images");
????????????????var?directoryInfo?=?new?DirectoryInfo(path);
????????????????foreach?(var?item?in?directoryInfo.GetFiles())
????????????????{
????????????????????if?(Path.GetExtension(item.Name)?!=?".jpg")?continue;
????????????????????stringCollection.Add(item.FullName);
????????????????}

????????????????timer.Interval?=?TimeSpan.FromSeconds(1);
????????????????timer.Tick?+=?delegate
????????????????{
????????????????????date?=?DateTime.Now;
????????????????????Hour?=?date.ToString("HH");
????????????????????Minute?=?date.ToString("mm");
????????????????????Date?=
????????????????????????$"{date.Month}?/?{date.Day}???{CultureInfo.CurrentCulture.DateTimeFormat.GetDayName(date.DayOfWeek)}";
????????????????};
????????????????timer.Start();
????????????};
????????????MouseDown?+=?delegate?{?Application.Current.Shutdown();?};
????????????KeyDown?+=?delegate?{?Application.Current.Shutdown();?};
????????}

????????public?ObservableCollection<string>?stringCollection
????????{
????????????get?=>?(ObservableCollection<string>)GetValue(stringCollectionProperty);
????????????set?=>?SetValue(stringCollectionProperty,?value);
????????}


????????public?string?Hour
????????{
????????????get?=>?(string)GetValue(HourProperty);
????????????set?=>?SetValue(HourProperty,?value);
????????}

????????public?string?Minute
????????{
????????????get?=>?(string)GetValue(MinuteProperty);
????????????set?=>?SetValue(MinuteProperty,?value);
????????}

????????public?string?Second
????????{
????????????get?=>?(string)GetValue(SecondProperty);
????????????set?=>?SetValue(SecondProperty,?value);
????????}


????????public?string?Date
????????{
????????????get?=>?(string)GetValue(DateProperty);
????????????set?=>?SetValue(DateProperty,?value);
????????}
????}
}