HandyControl应用之本地图片查看器

<Application x:Class="WPFImageExplorer.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             StartupUri="MainWindow.xaml">
    <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="pack://application:,,,/HandyControl;component/Themes/SkinDefault.xaml"/>
                <ResourceDictionary Source="pack://application:,,,/HandyControl;component/Themes/Theme.xaml"/>
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    </Application.Resources>
</Application>

public class BindingProxy : Freezable
    {
        protected override Freezable CreateInstanceCore()
        {
            return new BindingProxy();
        }
        public object Data
        {
            get { return (object)GetValue(DataProperty); }
            set { SetValue(DataProperty, value); }
        }
        public static readonly DependencyProperty DataProperty =
            DependencyProperty.Register("Data", typeof(object), typeof(BindingProxy), new UIPropertyMetadata(null));
    }

<local:BindingProxy x:Key="ImageLst" Data="{Binding ElementName=ImageLst, Mode=OneWay}"></local:BindingProxy>
        <Style x:Key="ListBoxItem.Common" TargetType="{x:Type ListBoxItem}">
            <Setter Property="Cursor" Value="Hand"/>
            <Setter  Property="FocusVisualStyle" Value="{x:Null}"/>
            <Setter Property="VerticalAlignment" Value="Stretch"/>
            <Setter Property="HorizontalAlignment" Value="Stretch"/>
        </Style>
        <Style x:Key="ListBox.Large" BasedOn="{StaticResource ListBoxCustom}" TargetType="{x:Type ListBox}">
            <Setter Property="VerticalContentAlignment" Value="Center"/>
            <Setter Property="ItemContainerStyle" Value="{StaticResource ListBoxItem.Common}"/>
            <Setter Property="ItemsPanel">
                <Setter.Value>
                    <ItemsPanelTemplate>
                        <hc:WaterfallPanel AutoGroup="True" DesiredLength="210" ></hc:WaterfallPanel>
                    </ItemsPanelTemplate>
                </Setter.Value>
            </Setter>
            <Setter Property="ItemTemplate">
                <Setter.Value>
                    <DataTemplate DataType="{x:Type vm:ImageObject}">
                        <Border Padding="0,4" MinWidth="210"  MinHeight="210">
                            <DockPanel x:Name="Content" MaxWidth="210"  MaxHeight="210">
                                <TextBlock TextBlock.TextAlignment="Center" TextWrapping="Wrap" Text="{Binding Name}" DockPanel.Dock="Bottom"></TextBlock>
                                <Image Stretch="Uniform" Margin="0,4" ToolTip="{Binding Name}" VerticalAlignment="Bottom" Source="{Binding Path}">
                                    <Image.Effect>
                                        <DropShadowEffect ShadowDepth="2" BlurRadius="10" Direction="270" Color="Black" Opacity="0.4"></DropShadowEffect>
                                    </Image.Effect>
                                </Image>
                            </DockPanel>
                        </Border>
                    </DataTemplate>
                </Setter.Value>
            </Setter>
        </Style>
        <Style x:Key="ListBox.Normal" BasedOn="{StaticResource ListBoxCustom}" TargetType="{x:Type ListBox}">
            <Setter Property="VerticalContentAlignment" Value="Center"/>
            <Setter Property="HorizontalContentAlignment" Value="Left"/>
            <Setter Property="ItemContainerStyle" Value="{StaticResource ListBoxItem.Common}"/>
            <Setter Property="ItemsPanel">
                <Setter.Value>
                    <ItemsPanelTemplate>
                        <hc:WaterfallPanel AutoGroup="True" DesiredLength="210" ></hc:WaterfallPanel>
                    </ItemsPanelTemplate>
                </Setter.Value>
            </Setter>
            <Setter Property="ItemTemplate">
                <Setter.Value>
                    <DataTemplate DataType="{x:Type vm:ImageObject}">
                        <DockPanel ToolTip="{Binding Name}" MinWidth="210"  MinHeight="210">
                            <TextBlock TextBlock.TextAlignment="Center" TextWrapping="Wrap" VerticalAlignment="Center" Text="{Binding Name}" DockPanel.Dock="Right"></TextBlock>
                            <Image Stretch="Uniform" Margin="5"  Width="100" Height="100" HorizontalAlignment="Left" VerticalAlignment="Center" Source="{Binding Path}">
                            </Image>
                        </DockPanel>
                    </DataTemplate>
                </Setter.Value>
            </Setter>
        </Style>

<DockPanel>
        <hc:Drawer Name="DrawerLeft" Dock="Right" ShowMode="Cover">
            <hc:SimplePanel>
                <Border BorderThickness="0" BorderBrush="Transparent" Background="{DynamicResource RegionBrush}" Width="{Binding Data.ActualWidth, Source={StaticResource ImageLst}}">
                    <hc:ImageViewer Name="ImageViewer"></hc:ImageViewer>
                </Border>
                <Button Cursor="Hand" Command="hc:ControlCommands.Close" HorizontalAlignment="Left" VerticalAlignment="Top" Foreground="{DynamicResource PrimaryTextBrush}" Opacity="0.5" Style="{DynamicResource ButtonIcon}" hc:IconElement.Geometry="{DynamicResource DeleteFillCircleGeometry}"/>
            </hc:SimplePanel>
        </hc:Drawer>
        <StackPanel DockPanel.Dock="Top" Orientation="Horizontal" HorizontalAlignment="Center">
            <Button x:Name="btn_selected" Content="加载" Click="btn_selected_Click"></Button>
            <hc:ButtonGroup Style="{DynamicResource ButtonGroupSolid}">
                <RadioButton Style="{StaticResource ToggleButtonIcon}" hc:IconElement.Geometry="{DynamicResource AllGeometry}" Tag="Normal" x:Name="btn_nomal" Checked="btn_nomal_Checked"></RadioButton>
                <RadioButton Style="{StaticResource ToggleButtonIcon}" hc:IconElement.Geometry="{DynamicResource FatalGeometry}" Tag="Large" x:Name="btn_large" Checked="btn_nomal_Checked"></RadioButton>
            </hc:ButtonGroup>
        </StackPanel>
        <ListBox x:Name="ImageLst"  Padding="0" MinWidth="210" Style="{StaticResource ListBox.Normal}" SelectionChanged="ImageLst_Selected" d:ItemsSource="{d:SampleData ItemCount=5}">         
   </ListBox>
</DockPanel>

public class ImageObject
    {
        public ImageObject(FileInfo file)
        {
            Name = file.Name;
            Path = file.FullName;
            ModifyDate = file.LastWriteTime;
        }
        public string Name { get; set; }
        public string Path { get; set; }
        public DateTime ModifyDate { get; set; }
    }
    public class ImageCollection : Collection<ImageObject>
    {

string folder = @"图片物理路径";
DateTime startdate = DateTime.Parse("2015/01/01");
DateTime enddate = DateTime.Parse("2022/02/01");
System.IO.FileInfo[] files = new System.IO.DirectoryInfo(folder).GetFiles("*.jpg").Where(x => x.LastWriteTime >= startdate && x.LastWriteTime <= enddate).OrderBy(x => x.LastWriteTime).Take(100).ToArray();
int count = files.Length;
ImageCollection images = new ImageCollection();
for (int i = 0; i < count; i++)
{
    images.Add(new ImageObject(files[i]));
}
ImageLst.ItemsSource = images;

RadioButton radioButton = sender as RadioButton;
 if (radioButton != null)
{
    string tag = radioButton.Tag?.ToString();
    if (string.IsNullOrEmpty(tag))
    {
        return;
    }
    string strkey = $"ListBox.{tag}";
    var keystyle = FindResource(strkey) as Style;
    if (keystyle != null) {
        ImageLst.Style = keystyle;
    }
}