chore: use file-scoped namespace
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@@ -10,289 +10,288 @@ using System.Windows.Media.Media3D;
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using HandyControl.Data;
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using HandyControl.Tools.Extension;
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namespace HandyControl.Controls
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namespace HandyControl.Controls;
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/// <summary>
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/// 封面流
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/// </summary>
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[TemplatePart(Name = ElementViewport3D, Type = typeof(Viewport3D))]
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[TemplatePart(Name = ElementCamera, Type = typeof(ProjectionCamera))]
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[TemplatePart(Name = ElementVisualParent, Type = typeof(ModelVisual3D))]
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public class CoverFlow : Control
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{
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private const string ElementViewport3D = "PART_Viewport3D";
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private const string ElementCamera = "PART_Camera";
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private const string ElementVisualParent = "PART_VisualParent";
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/// <summary>
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/// 封面流
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/// 最大显示数量的一半
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/// </summary>
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[TemplatePart(Name = ElementViewport3D, Type = typeof(Viewport3D))]
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[TemplatePart(Name = ElementCamera, Type = typeof(ProjectionCamera))]
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[TemplatePart(Name = ElementVisualParent, Type = typeof(ModelVisual3D))]
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public class CoverFlow : Control
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private const int MaxShowCountHalf = 3;
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/// <summary>
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/// 页码
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/// </summary>
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public static readonly DependencyProperty PageIndexProperty = DependencyProperty.Register(
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"PageIndex", typeof(int), typeof(CoverFlow),
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new PropertyMetadata(ValueBoxes.Int0Box, OnPageIndexChanged, CoercePageIndex));
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private static object CoercePageIndex(DependencyObject d, object baseValue)
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{
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private const string ElementViewport3D = "PART_Viewport3D";
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var ctl = (CoverFlow) d;
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var v = (int) baseValue;
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private const string ElementCamera = "PART_Camera";
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private const string ElementVisualParent = "PART_VisualParent";
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/// <summary>
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/// 最大显示数量的一半
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/// </summary>
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private const int MaxShowCountHalf = 3;
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/// <summary>
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/// 页码
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/// </summary>
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public static readonly DependencyProperty PageIndexProperty = DependencyProperty.Register(
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"PageIndex", typeof(int), typeof(CoverFlow),
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new PropertyMetadata(ValueBoxes.Int0Box, OnPageIndexChanged, CoercePageIndex));
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private static object CoercePageIndex(DependencyObject d, object baseValue)
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if (v < 0)
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{
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var ctl = (CoverFlow) d;
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var v = (int) baseValue;
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return 0;
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}
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if (v >= ctl._contentDic.Count)
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{
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return ctl._contentDic.Count - 1;
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}
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return v;
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}
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if (v < 0)
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{
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return 0;
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}
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if (v >= ctl._contentDic.Count)
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{
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return ctl._contentDic.Count - 1;
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}
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return v;
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private static void OnPageIndexChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
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{
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var ctl = (CoverFlow) d;
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ctl.UpdateIndex((int) e.NewValue);
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}
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/// <summary>
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/// 是否循环
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/// </summary>
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public static readonly DependencyProperty LoopProperty = DependencyProperty.Register(
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"Loop", typeof(bool), typeof(CoverFlow), new PropertyMetadata(ValueBoxes.FalseBox));
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/// <summary>
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/// 存储所有的内容
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/// </summary>
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private readonly Dictionary<int, object> _contentDic = new();
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/// <summary>
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/// 当前在显示范围内的项
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/// </summary>
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private readonly Dictionary<int, CoverFlowItem> _itemShowDic = new();
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/// <summary>
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/// 相机
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/// </summary>
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private ProjectionCamera _camera;
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private Point3DAnimation _point3DAnimation;
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/// <summary>
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/// 3d画布
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/// </summary>
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private Viewport3D _viewport3D;
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/// <summary>
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/// 项容器
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/// </summary>
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private ModelVisual3D _visualParent;
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/// <summary>
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/// 显示范围内第一个项的编号
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/// </summary>
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private int _firstShowIndex;
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/// <summary>
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/// 显示范围内最后一个项的编号
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/// </summary>
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private int _lastShowIndex;
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/// <summary>
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/// 页码
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/// </summary>
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public int PageIndex
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{
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get => (int) GetValue(PageIndexProperty);
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set => SetValue(PageIndexProperty, value);
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}
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/// <summary>
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/// 是否循环
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/// </summary>
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public bool Loop
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{
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get => (bool) GetValue(LoopProperty);
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set => SetValue(LoopProperty, ValueBoxes.BooleanBox(value));
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}
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public override void OnApplyTemplate()
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{
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if (_viewport3D != null)
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{
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_viewport3D.Children.Clear();
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_itemShowDic.Clear();
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_viewport3D.MouseLeftButtonDown -= Viewport3D_MouseLeftButtonDown;
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}
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private static void OnPageIndexChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
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base.OnApplyTemplate();
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_viewport3D = GetTemplateChild(ElementViewport3D) as Viewport3D;
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if (_viewport3D != null)
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{
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var ctl = (CoverFlow) d;
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ctl.UpdateIndex((int) e.NewValue);
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_viewport3D.MouseLeftButtonDown += Viewport3D_MouseLeftButtonDown;
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}
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/// <summary>
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/// 是否循环
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/// </summary>
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public static readonly DependencyProperty LoopProperty = DependencyProperty.Register(
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"Loop", typeof(bool), typeof(CoverFlow), new PropertyMetadata(ValueBoxes.FalseBox));
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_camera = GetTemplateChild(ElementCamera) as ProjectionCamera;
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_visualParent = GetTemplateChild(ElementVisualParent) as ModelVisual3D;
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/// <summary>
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/// 存储所有的内容
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/// </summary>
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private readonly Dictionary<int, object> _contentDic = new();
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UpdateShowRange();
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/// <summary>
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/// 当前在显示范围内的项
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/// </summary>
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private readonly Dictionary<int, CoverFlowItem> _itemShowDic = new();
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_point3DAnimation = new Point3DAnimation(new Point3D(CoverFlowItem.Interval * PageIndex, _camera.Position.Y, _camera.Position.Z), new Duration(TimeSpan.FromMilliseconds(200)));
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_camera.BeginAnimation(ProjectionCamera.PositionProperty, _point3DAnimation);
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}
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/// <summary>
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/// 相机
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/// </summary>
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private ProjectionCamera _camera;
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private Point3DAnimation _point3DAnimation;
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/// <summary>
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/// 3d画布
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/// </summary>
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private Viewport3D _viewport3D;
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/// <summary>
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/// 项容器
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/// </summary>
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private ModelVisual3D _visualParent;
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/// <summary>
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/// 显示范围内第一个项的编号
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/// </summary>
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private int _firstShowIndex;
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/// <summary>
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/// 显示范围内最后一个项的编号
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/// </summary>
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private int _lastShowIndex;
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/// <summary>
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/// 页码
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/// </summary>
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public int PageIndex
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/// <summary>
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/// 批量添加资源
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/// </summary>
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/// <param name="contentList"></param>
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public void AddRange(IEnumerable<object> contentList)
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{
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foreach (var content in contentList)
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{
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get => (int) GetValue(PageIndexProperty);
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set => SetValue(PageIndexProperty, value);
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_contentDic.Add(_contentDic.Count, content);
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}
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}
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/// <summary>
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/// 添加一项资源
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/// </summary>
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/// <param name="uriString"></param>
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public void Add(string uriString) => _contentDic.Add(_contentDic.Count, new Uri(uriString));
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/// <summary>
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/// 添加一项资源
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/// </summary>
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/// <param name="uri"></param>
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public void Add(Uri uri) => _contentDic.Add(_contentDic.Count, uri);
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public void Next() => PageIndex++;
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public void Prev() => PageIndex--;
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protected override void OnMouseWheel(MouseWheelEventArgs e)
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{
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base.OnMouseWheel(e);
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if (e.Delta < 0)
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{
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var index = PageIndex + 1;
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PageIndex = index >= _contentDic.Count ? Loop ? 0 : _contentDic.Count - 1 : index;
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}
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else
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{
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var index = PageIndex - 1;
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PageIndex = index < 0 ? Loop ? _contentDic.Count - 1 : 0 : index;
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}
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/// <summary>
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/// 是否循环
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/// </summary>
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public bool Loop
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{
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get => (bool) GetValue(LoopProperty);
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set => SetValue(LoopProperty, ValueBoxes.BooleanBox(value));
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}
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e.Handled = true;
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}
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public override void OnApplyTemplate()
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/// <summary>
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/// 删除指定位置的项
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/// </summary>
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/// <param name="pos"></param>
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private void Remove(int pos)
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{
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if (!_itemShowDic.TryGetValue(pos, out var item)) return;
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_visualParent.Children.Remove(item);
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_itemShowDic.Remove(pos);
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}
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private void Viewport3D_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
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{
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var result = (RayMeshGeometry3DHitTestResult) VisualTreeHelper.HitTest(_viewport3D, e.GetPosition(_viewport3D));
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if (result != null)
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{
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if (_viewport3D != null)
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foreach (var item in _itemShowDic.Values)
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{
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_viewport3D.Children.Clear();
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_itemShowDic.Clear();
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_viewport3D.MouseLeftButtonDown -= Viewport3D_MouseLeftButtonDown;
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}
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base.OnApplyTemplate();
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_viewport3D = GetTemplateChild(ElementViewport3D) as Viewport3D;
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if (_viewport3D != null)
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{
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_viewport3D.MouseLeftButtonDown += Viewport3D_MouseLeftButtonDown;
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}
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_camera = GetTemplateChild(ElementCamera) as ProjectionCamera;
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_visualParent = GetTemplateChild(ElementVisualParent) as ModelVisual3D;
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UpdateShowRange();
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_point3DAnimation = new Point3DAnimation(new Point3D(CoverFlowItem.Interval * PageIndex, _camera.Position.Y, _camera.Position.Z), new Duration(TimeSpan.FromMilliseconds(200)));
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_camera.BeginAnimation(ProjectionCamera.PositionProperty, _point3DAnimation);
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}
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/// <summary>
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/// 批量添加资源
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/// </summary>
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/// <param name="contentList"></param>
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public void AddRange(IEnumerable<object> contentList)
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{
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foreach (var content in contentList)
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{
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_contentDic.Add(_contentDic.Count, content);
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if (item.HitTest(result.MeshHit))
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{
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PageIndex = item.Index;
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break;
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}
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}
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}
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}
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/// <summary>
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/// 添加一项资源
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/// </summary>
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/// <param name="uriString"></param>
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public void Add(string uriString) => _contentDic.Add(_contentDic.Count, new Uri(uriString));
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/// <summary>
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/// 添加一项资源
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/// </summary>
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/// <param name="uri"></param>
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public void Add(Uri uri) => _contentDic.Add(_contentDic.Count, uri);
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public void Next() => PageIndex++;
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public void Prev() => PageIndex--;
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protected override void OnMouseWheel(MouseWheelEventArgs e)
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/// <summary>
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/// 更新项的位置
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/// </summary>
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/// <param name="newIndex"></param>
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private void UpdateIndex(int newIndex)
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{
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if (!IsLoaded)
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{
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base.OnMouseWheel(e);
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return;
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}
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if (e.Delta < 0)
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UpdateShowRange();
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_itemShowDic.Do(item =>
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{
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if (item.Value.Index < _firstShowIndex || item.Value.Index > _lastShowIndex)
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{
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var index = PageIndex + 1;
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PageIndex = index >= _contentDic.Count ? Loop ? 0 : _contentDic.Count - 1 : index;
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Remove(item.Value.Index);
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}
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else
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{
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var index = PageIndex - 1;
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PageIndex = index < 0 ? Loop ? _contentDic.Count - 1 : 0 : index;
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item.Value.Move(PageIndex);
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}
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});
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e.Handled = true;
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}
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_point3DAnimation = new Point3DAnimation(new Point3D(CoverFlowItem.Interval * newIndex, _camera.Position.Y,
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_camera.Position.Z), new Duration(TimeSpan.FromMilliseconds(200)));
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/// <summary>
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/// 删除指定位置的项
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/// </summary>
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/// <param name="pos"></param>
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private void Remove(int pos)
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{
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if (!_itemShowDic.TryGetValue(pos, out var item)) return;
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_visualParent.Children.Remove(item);
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_itemShowDic.Remove(pos);
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}
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private void Viewport3D_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
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{
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var result = (RayMeshGeometry3DHitTestResult) VisualTreeHelper.HitTest(_viewport3D, e.GetPosition(_viewport3D));
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if (result != null)
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{
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foreach (var item in _itemShowDic.Values)
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{
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if (item.HitTest(result.MeshHit))
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{
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PageIndex = item.Index;
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break;
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}
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}
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}
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}
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/// <summary>
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/// 更新项的位置
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/// </summary>
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/// <param name="newIndex"></param>
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private void UpdateIndex(int newIndex)
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{
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if (!IsLoaded)
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{
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return;
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}
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UpdateShowRange();
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_itemShowDic.Do(item =>
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{
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if (item.Value.Index < _firstShowIndex || item.Value.Index > _lastShowIndex)
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{
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Remove(item.Value.Index);
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}
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else
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{
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item.Value.Move(PageIndex);
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}
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});
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_point3DAnimation = new Point3DAnimation(new Point3D(CoverFlowItem.Interval * newIndex, _camera.Position.Y,
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_camera.Position.Z), new Duration(TimeSpan.FromMilliseconds(200)));
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_camera.BeginAnimation(ProjectionCamera.PositionProperty, _point3DAnimation);
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}
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/// <summary>
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/// 更新显示范围
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/// </summary>
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private void UpdateShowRange()
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{
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var newFirstShowIndex = Math.Max(PageIndex - MaxShowCountHalf, 0);
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var newLastShowIndex = Math.Min(PageIndex + MaxShowCountHalf, _contentDic.Count - 1);
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for (var i = newFirstShowIndex; i <= newLastShowIndex; i++)
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{
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if (!_itemShowDic.ContainsKey(i))
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{
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var cover = CreateCoverFlowItem(i, _contentDic[i]);
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_itemShowDic[i] = cover;
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_visualParent.Children.Add(cover);
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}
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}
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_firstShowIndex = newFirstShowIndex;
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_lastShowIndex = newLastShowIndex;
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}
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private CoverFlowItem CreateCoverFlowItem(int index, object content)
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{
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if (content is Uri uri)
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{
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try
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{
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return new CoverFlowItem(index, PageIndex, new Image
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{
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Source = BitmapFrame.Create(uri, BitmapCreateOptions.DelayCreation, BitmapCacheOption.OnDemand)
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});
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}
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catch
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{
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return new CoverFlowItem(index, PageIndex, new ContentControl());
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}
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}
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return new CoverFlowItem(index, PageIndex, new ContentControl
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{
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Content = content
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});
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}
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_camera.BeginAnimation(ProjectionCamera.PositionProperty, _point3DAnimation);
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}
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}
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/// <summary>
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/// 更新显示范围
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/// </summary>
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private void UpdateShowRange()
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{
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var newFirstShowIndex = Math.Max(PageIndex - MaxShowCountHalf, 0);
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var newLastShowIndex = Math.Min(PageIndex + MaxShowCountHalf, _contentDic.Count - 1);
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for (var i = newFirstShowIndex; i <= newLastShowIndex; i++)
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{
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if (!_itemShowDic.ContainsKey(i))
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{
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var cover = CreateCoverFlowItem(i, _contentDic[i]);
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_itemShowDic[i] = cover;
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_visualParent.Children.Add(cover);
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||||
}
|
||||
}
|
||||
|
||||
_firstShowIndex = newFirstShowIndex;
|
||||
_lastShowIndex = newLastShowIndex;
|
||||
}
|
||||
|
||||
private CoverFlowItem CreateCoverFlowItem(int index, object content)
|
||||
{
|
||||
if (content is Uri uri)
|
||||
{
|
||||
try
|
||||
{
|
||||
return new CoverFlowItem(index, PageIndex, new Image
|
||||
{
|
||||
Source = BitmapFrame.Create(uri, BitmapCreateOptions.DelayCreation, BitmapCacheOption.OnDemand)
|
||||
});
|
||||
}
|
||||
catch
|
||||
{
|
||||
return new CoverFlowItem(index, PageIndex, new ContentControl());
|
||||
}
|
||||
}
|
||||
|
||||
return new CoverFlowItem(index, PageIndex, new ContentControl
|
||||
{
|
||||
Content = content
|
||||
});
|
||||
}
|
||||
}
|
||||
Reference in new issue
Block a user