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https://gitee.com/akwkevin/aistudio.-wpf.-diagram
synced 2026-04-05 08:46:34 +08:00
页面视图新增缩略图模式
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艾竹
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using System;
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using System.ComponentModel;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Input;
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using System.Windows.Threading;
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namespace AIStudio.Wpf.DiagramDesigner.Additionals.Controls
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{
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[TemplatePart(Name = Plane3DPartName, Type = typeof(Plane3D))]
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[TemplateVisualState(GroupName = TemplateFlipGroupName, Name = TemplateFlippedStateName)]
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[TemplateVisualState(GroupName = TemplateFlipGroupName, Name = TemplateUnflippedStateName)]
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public class Flipper : Control
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{
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public static readonly RoutedCommand FlipCommand = new RoutedCommand();
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public const string Plane3DPartName = "PART_Plane3D";
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public const string TemplateFlipGroupName = "FlipStates";
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public const string TemplateFlippedStateName = "Flipped";
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public const string TemplateUnflippedStateName = "Unflipped";
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private Plane3D _plane3D;
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static Flipper()
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{
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DefaultStyleKeyProperty.OverrideMetadata(typeof(Flipper), new FrameworkPropertyMetadata(typeof(Flipper)));
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}
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public Flipper()
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{
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CommandBindings.Add(new CommandBinding(FlipCommand, FlipHandler));
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}
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public static readonly DependencyProperty FrontContentProperty = DependencyProperty.Register(
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nameof(FrontContent), typeof(object), typeof(Flipper), new PropertyMetadata(default(object)));
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public object FrontContent
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{
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get => GetValue(FrontContentProperty);
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set => SetValue(FrontContentProperty, value);
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}
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public static readonly DependencyProperty FrontContentTemplateProperty = DependencyProperty.Register(
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nameof(FrontContentTemplate), typeof(DataTemplate), typeof(Flipper), new PropertyMetadata(default(DataTemplate)));
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public DataTemplate FrontContentTemplate
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{
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get => (DataTemplate)GetValue(FrontContentTemplateProperty);
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set => SetValue(FrontContentTemplateProperty, value);
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}
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public static readonly DependencyProperty FrontContentTemplateSelectorProperty = DependencyProperty.Register(
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nameof(FrontContentTemplateSelector), typeof(DataTemplateSelector), typeof(Flipper), new PropertyMetadata(default(DataTemplateSelector)));
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public DataTemplateSelector FrontContentTemplateSelector
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{
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get => (DataTemplateSelector)GetValue(FrontContentTemplateSelectorProperty);
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set => SetValue(FrontContentTemplateSelectorProperty, value);
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}
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public static readonly DependencyProperty FrontContentStringFormatProperty = DependencyProperty.Register(
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nameof(FrontContentStringFormat), typeof(string), typeof(Flipper), new PropertyMetadata(default(string)));
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public string FrontContentStringFormat
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{
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get => (string)GetValue(FrontContentStringFormatProperty);
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set => SetValue(FrontContentStringFormatProperty, value);
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}
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public static readonly DependencyProperty BackContentProperty = DependencyProperty.Register(
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nameof(BackContent), typeof(object), typeof(Flipper), new PropertyMetadata(default(object)));
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public object BackContent
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{
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get => GetValue(BackContentProperty);
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set => SetValue(BackContentProperty, value);
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}
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public static readonly DependencyProperty BackContentTemplateProperty = DependencyProperty.Register(
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nameof(BackContentTemplate), typeof(DataTemplate), typeof(Flipper), new PropertyMetadata(default(DataTemplate)));
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public DataTemplate BackContentTemplate
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{
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get => (DataTemplate)GetValue(BackContentTemplateProperty);
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set => SetValue(BackContentTemplateProperty, value);
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}
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public static readonly DependencyProperty BackContentTemplateSelectorProperty = DependencyProperty.Register(
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nameof(BackContentTemplateSelector), typeof(DataTemplateSelector), typeof(Flipper), new PropertyMetadata(default(DataTemplateSelector)));
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public DataTemplateSelector BackContentTemplateSelector
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{
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get => (DataTemplateSelector)GetValue(BackContentTemplateSelectorProperty);
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set => SetValue(BackContentTemplateSelectorProperty, value);
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}
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public static readonly DependencyProperty BackContentStringFormatProperty = DependencyProperty.Register(
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nameof(BackContentStringFormat), typeof(string), typeof(Flipper), new PropertyMetadata(default(string)));
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public string BackContentStringFormat
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{
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get => (string)GetValue(BackContentStringFormatProperty);
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set => SetValue(BackContentStringFormatProperty, value);
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}
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public static readonly DependencyProperty IsFlippedProperty = DependencyProperty.Register(
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nameof(IsFlipped), typeof(bool), typeof(Flipper), new PropertyMetadata(default(bool), IsFlippedPropertyChangedCallback));
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private static void IsFlippedPropertyChangedCallback(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs dependencyPropertyChangedEventArgs)
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{
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var flipper = (Flipper)dependencyObject;
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flipper.UpdateVisualStates(true);
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flipper.RemeasureDuringFlip();
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OnIsFlippedChanged(flipper, dependencyPropertyChangedEventArgs);
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}
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public bool IsFlipped
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{
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get => (bool)GetValue(IsFlippedProperty);
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set => SetValue(IsFlippedProperty, value);
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}
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public static readonly RoutedEvent IsFlippedChangedEvent =
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EventManager.RegisterRoutedEvent(
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nameof(IsFlipped),
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RoutingStrategy.Bubble,
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typeof(RoutedPropertyChangedEventHandler<bool>),
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typeof(Flipper));
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public event RoutedPropertyChangedEventHandler<bool> IsFlippedChanged
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{
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add => AddHandler(IsFlippedChangedEvent, value);
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remove => RemoveHandler(IsFlippedChangedEvent, value);
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}
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private static void OnIsFlippedChanged(
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DependencyObject d, DependencyPropertyChangedEventArgs e)
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{
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var instance = (Flipper)d;
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var args = new RoutedPropertyChangedEventArgs<bool>(
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(bool)e.OldValue,
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(bool)e.NewValue)
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{
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RoutedEvent = IsFlippedChangedEvent
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};
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instance.RaiseEvent(args);
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}
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public override void OnApplyTemplate()
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{
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base.OnApplyTemplate();
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UpdateVisualStates(false);
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_plane3D = GetTemplateChild(Plane3DPartName) as Plane3D;
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}
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private void RemeasureDuringFlip()
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{
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//not entirely happy hardcoding this, but I have explored other options I am not happy with, and this will do for now
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const int storyboardMs = 400;
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const int granularity = 6;
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var remeasureInterval = new TimeSpan(0, 0, 0, 0, storyboardMs / granularity);
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var refreshCount = 0;
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var plane3D = _plane3D;
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if (plane3D is null) return;
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DispatcherTimer dt = null;
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dt = new DispatcherTimer(remeasureInterval, DispatcherPriority.Normal,
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(sender, args) => {
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plane3D.InvalidateMeasure();
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if (refreshCount++ == granularity)
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dt?.Stop();
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}, Dispatcher);
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dt.Start();
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}
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private void UpdateVisualStates(bool useTransitions)
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{
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VisualStateManager.GoToState(this, IsFlipped ? TemplateFlippedStateName : TemplateUnflippedStateName,
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useTransitions);
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}
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private void FlipHandler(object sender, ExecutedRoutedEventArgs executedRoutedEventArgs)
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{
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SetCurrentValue(IsFlippedProperty, !IsFlipped);
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}
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public static readonly DependencyProperty HeaderProperty = DependencyProperty.Register(
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nameof(Header), typeof(object), typeof(Flipper), new PropertyMetadata(default(object)));
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public object Header
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{
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get => GetValue(HeaderProperty);
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set => SetValue(HeaderProperty, value);
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}
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public static readonly DependencyProperty HeaderTemplateProperty = DependencyProperty.Register(
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nameof(HeaderTemplate), typeof(DataTemplate), typeof(Flipper), new PropertyMetadata(default(DataTemplate)));
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[Bindable(true), Category("Content")]
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public DataTemplate HeaderTemplate
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{
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get => (DataTemplate)GetValue(HeaderTemplateProperty);
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set => SetValue(HeaderTemplateProperty, value);
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}
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public static readonly DependencyProperty HeaderTemplateSelectorProperty = DependencyProperty.Register(
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nameof(HeaderTemplateSelector), typeof(DataTemplateSelector), typeof(Flipper), new PropertyMetadata(default(DataTemplateSelector)));
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[Bindable(true), Category("Content")]
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public DataTemplateSelector HeaderTemplateSelector
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{
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get => (DataTemplateSelector)GetValue(HeaderTemplateSelectorProperty);
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set => SetValue(HeaderTemplateSelectorProperty, value);
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}
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public static readonly DependencyProperty HeaderStringFormatProperty = DependencyProperty.Register(
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nameof(HeaderStringFormat), typeof(string), typeof(Flipper), new PropertyMetadata(default(string)));
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[Bindable(true), Category("Content")]
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public string HeaderStringFormat
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{
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get => (string)GetValue(HeaderStringFormatProperty);
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set => SetValue(HeaderStringFormatProperty, value);
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}
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public static readonly DependencyProperty FooterProperty = DependencyProperty.Register(
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nameof(Footer), typeof(object), typeof(Flipper), new PropertyMetadata(default(object)));
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public object Footer
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{
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get => GetValue(FooterProperty);
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set => SetValue(FooterProperty, value);
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}
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public static readonly DependencyProperty FooterTemplateProperty = DependencyProperty.Register(
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nameof(FooterTemplate), typeof(DataTemplate), typeof(Flipper), new PropertyMetadata(default(DataTemplate)));
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[Bindable(true), Category("Content")]
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public DataTemplate FooterTemplate
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{
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get => (DataTemplate)GetValue(FooterTemplateProperty);
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set => SetValue(FooterTemplateProperty, value);
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}
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public static readonly DependencyProperty FooterTemplateSelectorProperty = DependencyProperty.Register(
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nameof(FooterTemplateSelector), typeof(DataTemplateSelector), typeof(Flipper), new PropertyMetadata(default(DataTemplateSelector)));
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[Bindable(true), Category("Content")]
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public DataTemplateSelector FooterTemplateSelector
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{
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get => (DataTemplateSelector)GetValue(FooterTemplateSelectorProperty);
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set => SetValue(FooterTemplateSelectorProperty, value);
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}
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public static readonly DependencyProperty FooterStringFormatProperty = DependencyProperty.Register(
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nameof(FooterStringFormat), typeof(string), typeof(Flipper), new PropertyMetadata(default(string)));
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[Bindable(true), Category("Content")]
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public string FooterStringFormat
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{
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get => (string)GetValue(FooterStringFormatProperty);
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set => SetValue(FooterStringFormatProperty, value);
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}
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}
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}
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