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| 1 | +using System; |
| 2 | +using System.Collections.Generic; |
| 3 | +using System.Linq; |
| 4 | +using System.Text; |
| 5 | +using System.Threading.Tasks; |
| 6 | +using System.Windows; |
| 7 | +using System.Windows.Data; |
| 8 | + |
| 9 | +namespace iNKORE.UI.WPF.Converters |
| 10 | +{ |
| 11 | + /// <summary> |
| 12 | + /// Extracts a single member of a CornerRadius object. |
| 13 | + /// For example, if you have a CornerRadius of 5,5,5,5 and you want to extract the TopLeft value, you would use this converter with the TargetMember set to TopLeft. |
| 14 | + /// </summary> |
| 15 | + public class CornerRadiusExtractionConverter: IValueConverter |
| 16 | + { |
| 17 | + public CornerRadiusExtractMember TargetMember { get; set; } |
| 18 | + |
| 19 | + public double Scale { get; set; } = 1; |
| 20 | + |
| 21 | + public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) |
| 22 | + { |
| 23 | + if (value is CornerRadius) |
| 24 | + { |
| 25 | + var result = 0d; |
| 26 | + CornerRadius cornerRadius = (CornerRadius)value; |
| 27 | + |
| 28 | + switch (TargetMember) |
| 29 | + { |
| 30 | + case CornerRadiusExtractMember.TopLeft: |
| 31 | + result = cornerRadius.TopLeft; |
| 32 | + break; |
| 33 | + case CornerRadiusExtractMember.TopRight: |
| 34 | + result = cornerRadius.TopRight; |
| 35 | + break; |
| 36 | + case CornerRadiusExtractMember.BottomRight: |
| 37 | + result = cornerRadius.BottomRight; |
| 38 | + break; |
| 39 | + case CornerRadiusExtractMember.BottomLeft: |
| 40 | + result = cornerRadius.BottomLeft; |
| 41 | + break; |
| 42 | + default: |
| 43 | + result = cornerRadius.TopLeft; |
| 44 | + break; |
| 45 | + } |
| 46 | + |
| 47 | + return result * Scale; |
| 48 | + } |
| 49 | + |
| 50 | + return null; |
| 51 | + } |
| 52 | + |
| 53 | + public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) |
| 54 | + { |
| 55 | + if (value is double) |
| 56 | + { |
| 57 | + double doubleValue = (double)value / Scale; |
| 58 | + |
| 59 | + switch (TargetMember) |
| 60 | + { |
| 61 | + case CornerRadiusExtractMember.TopLeft: |
| 62 | + return new CornerRadius(doubleValue, 0, 0, 0); |
| 63 | + case CornerRadiusExtractMember.TopRight: |
| 64 | + return new CornerRadius(0, doubleValue, 0, 0); |
| 65 | + case CornerRadiusExtractMember.BottomRight: |
| 66 | + return new CornerRadius(0, 0, doubleValue, 0); |
| 67 | + case CornerRadiusExtractMember.BottomLeft: |
| 68 | + return new CornerRadius(0, 0, 0, doubleValue); |
| 69 | + default: |
| 70 | + return new CornerRadius(doubleValue); |
| 71 | + } |
| 72 | + } |
| 73 | + |
| 74 | + return new CornerRadius(0); |
| 75 | + } |
| 76 | + } |
| 77 | + |
| 78 | + public enum CornerRadiusExtractMember |
| 79 | + { |
| 80 | + TopLeft, |
| 81 | + TopRight, |
| 82 | + BottomRight, |
| 83 | + BottomLeft |
| 84 | + } |
| 85 | +} |
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