29 lines
1.3 KiB
C#
29 lines
1.3 KiB
C#
using System.Globalization;
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using System.Windows.Data;
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namespace Melskin.Converters.Internal;
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/// <summary>
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/// IntensityToEmbossMarginRightBottomConverter 转换器用于将浮点数强度值转换为 Thickness 结构，以应用于右下边距。
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/// 该转换器主要用于创建浮雕效果的控件中，通过调整边距来模拟不同强度下的视觉效果。
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/// 当输入的强度值为1时，产生的边距最小，从而使得着色边框更加明显。随着强度值减小，边距增大，
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/// 使着色部分看起来更模糊或更不显著。
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/// </summary>
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[ValueConversion(typeof(double), typeof(Thickness))]
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internal sealed class IntensityToEmbossMarginRightBottomConverter : IValueConverter
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{
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public static readonly IntensityToEmbossMarginRightBottomConverter Instance = new();
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public object Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
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{
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var intensity = (double)(value ?? 0.5);
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//数值为1的时候边距最小，露出的着色边框越大
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var marginValue = 4 * intensity;
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return new Thickness(marginValue, marginValue, -marginValue, -marginValue);
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}
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public object ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
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{
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return Binding.DoNothing;
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}
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} |