50 lines
2.1 KiB
C#
50 lines
2.1 KiB
C#
using System;
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using System.Globalization;
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using System.Windows;
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using System.Windows.Data;
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using System.Windows.Media;
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namespace HandyControl.Tools.Converter;
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public class BorderClipConverter : IMultiValueConverter
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{
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public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
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{
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if (values.Length == 3 && values[0] is double width && values[1] is double height && values[2] is CornerRadius radius)
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{
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if (width < double.Epsilon || height < double.Epsilon)
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{
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return Geometry.Empty;
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}
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var clip = new PathGeometry
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{
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Figures = new PathFigureCollection
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{
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new(new Point(radius.TopLeft, 0), new PathSegment[]
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{
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new LineSegment(new Point(width - radius.TopRight, 0), false),
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new ArcSegment(new Point(width, radius.TopRight), new Size(radius.TopRight, radius.TopRight), 90, false, SweepDirection.Clockwise, false),
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new LineSegment(new Point(width, height - radius.BottomRight), false),
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new ArcSegment(new Point(width - radius.BottomRight, height), new Size(radius.BottomRight, radius.BottomRight), 90, false, SweepDirection.Clockwise, false),
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new LineSegment(new Point(radius.BottomLeft, height), false),
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new ArcSegment(new Point(0, height - radius.BottomLeft), new Size(radius.BottomLeft, radius.BottomLeft), 90, false, SweepDirection.Clockwise, false),
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new LineSegment(new Point(0, radius.TopLeft), false),
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new ArcSegment(new Point(radius.TopLeft, 0), new Size(radius.TopLeft, radius.TopLeft), 90, false, SweepDirection.Clockwise, false),
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}, false)
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}
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};
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clip.Freeze();
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return clip;
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}
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return DependencyProperty.UnsetValue;
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}
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public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
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{
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throw new NotSupportedException();
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}
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}
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