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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using MaterialDesignThemes.Wpf.Transitions;
namespace MaterialDesignThemes.Wpf
{
/// <summary>
///
/// </summary>
[TemplateVisualState(GroupName="ActivationStates", Name = ActiveStateName)]
[TemplateVisualState(GroupName = "ActivationStates", Name = InactiveStateName)]
public class Underline : Control
{
public const string ActiveStateName = "Active";
public const string InactiveStateName = "Inactive";
static Underline()
{
DefaultStyleKeyProperty.OverrideMetadata(typeof(Underline), new FrameworkPropertyMetadata(typeof(Underline)));
}
public static readonly DependencyProperty IsActiveProperty = DependencyProperty.Register(
nameof(IsActive), typeof(bool), typeof(Underline),
new FrameworkPropertyMetadata(false, FrameworkPropertyMetadataOptions.AffectsRender, IsActivePropertyChangedCallback));
private static void IsActivePropertyChangedCallback(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs dependencyPropertyChangedEventArgs)
{
((Underline)dependencyObject).GotoVisualState(!TransitionAssist.GetDisableTransitions(dependencyObject));
}
public bool IsActive
{
get { return (bool)GetValue(IsActiveProperty); }
set { SetValue(IsActiveProperty, value); }
}
public static readonly DependencyProperty CornerRadiusProperty = DependencyProperty.Register(
nameof(CornerRadius), typeof(CornerRadius), typeof(Underline),
new FrameworkPropertyMetadata(new CornerRadius(0), FrameworkPropertyMetadataOptions.AffectsRender, null));
public CornerRadius CornerRadius
{
get { return (CornerRadius)GetValue(CornerRadiusProperty); }
set { SetValue(CornerRadiusProperty, value); }
}
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
GotoVisualState(false);
}
private void GotoVisualState(bool useTransitions)
{
VisualStateManager.GoToState(this, SelectStateName(), useTransitions);
}
private string SelectStateName()
{
return IsActive ? ActiveStateName : InactiveStateName;
}
}
}
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