| 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.Controls; |
| 8 | |
| 9 | namespace UI.Controls.Base |
| 10 | { |
| 11 | public class DiffValue : StackPanel |
| 12 | { |
| 13 | public enum DiffType |
| 14 | { |
| 15 | ///<summary> |
| 16 | /// |
| 17 | ///</summary> |
| 18 | Percent, |
| 19 | ///<summary> |
| 20 | /// |
| 21 | ///</summary> |
| 22 | Number |
| 23 | } |
| 24 | public double Value |
| 25 | { |
| 26 | get { return (double)GetValue(ValueProperty); } |
| 27 | set { SetValue(ValueProperty, value); } |
| 28 | } |
| 29 | public static readonly DependencyProperty ValueProperty = |
| 30 | DependencyProperty.Register("Value", |
| 31 | typeof(double), |
| 32 | typeof(DiffValue), new PropertyMetadata(new PropertyChangedCallback(OnPropertyChanged))); |
| 33 | public double LastValue |
| 34 | { |
| 35 | get { return (double)GetValue(LastValueProperty); } |
| 36 | set { SetValue(LastValueProperty, value); } |
| 37 | } |
| 38 | public static readonly DependencyProperty LastValueProperty = |
| 39 | DependencyProperty.Register("LastValue", |
| 40 | typeof(double), |
| 41 | typeof(DiffValue), new PropertyMetadata(new PropertyChangedCallback(OnPropertyChanged))); |
| 42 | public DiffType Type |
| 43 | { |
| 44 | get { return (DiffType)GetValue(TypeProperty); } |
| 45 | set { SetValue(TypeProperty, value); } |
| 46 | } |
| 47 | public static readonly DependencyProperty TypeProperty = |
| 48 | DependencyProperty.Register("Type", |
| 49 | typeof(DiffType), |
| 50 | typeof(DiffValue), new PropertyMetadata(DiffType.Percent, new PropertyChangedCallback(OnPropertyChanged))); |
| 51 | |
| 52 | private static void OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) |
| 53 | { |
| 54 | var control = d as DiffValue; |
| 55 | control.Render(); |
| 56 | } |
| 57 | |
| 58 | public DiffValue() |
| 59 | { |
| 60 | DefaultStyleKey = typeof(DiffValue); |
| 61 | Orientation = Orientation.Horizontal; |
| 62 | Render(); |
| 63 | } |
| 64 | |
| 65 | |
| 66 | |
| 67 | private void Render() |
| 68 | { |
| 69 | Children.Clear(); |
| 70 | |
| 71 | double diffValue = Value - LastValue; |
| 72 | double result = Type == DiffType.Percent ? diffValue / LastValue * 100 : diffValue; |
| 73 | if (Value > 0 && LastValue <= 0) |
| 74 | { |
| 75 | result = Type == DiffType.Percent ? 100 : Value; |
| 76 | } |
| 77 | else if (Value == LastValue) |
| 78 | { |
| 79 | result = 0; |
| 80 | } |
| 81 | var text = new TextBlock(); |
| 82 | text.Text = Type == DiffType.Percent ? Math.Abs(result).ToString("f2") + "%" : Math.Abs(result).ToString(); |
| 83 | text.VerticalAlignment = VerticalAlignment.Center; |
| 84 | |
| 85 | var icon = new Icon(); |
| 86 | icon.FontSize = 10; |
| 87 | icon.VerticalAlignment = VerticalAlignment.Center; |
| 88 | |
| 89 | if (result > 0) |
| 90 | { |
| 91 | icon.IconType = IconTypes.ArrowUp8; |
| 92 | Children.Add(icon); |
| 93 | Children.Add(text); |
| 94 | } |
| 95 | else if (result < 0) |
| 96 | { |
| 97 | icon.IconType = IconTypes.ArrowDown8; |
| 98 | Children.Add(icon); |
| 99 | Children.Add(text); |
| 100 | } |
| 101 | else |
| 102 | { |
| 103 | icon.IconType = IconTypes.SubtractBold; |
| 104 | Children.Add(icon); |
| 105 | } |
| 106 | |
| 107 | |
| 108 | } |
| 109 | } |
| 110 | } |