ComPDFKit.Demo(win) - 注释回复 Converter

Demo/Examples/Compdfkit.Controls/Common/Convert/AntiVisibilityConverter.cs

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+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Data;
+
+namespace ComPDFKit.Controls.Common
+{
+    [ValueConversion(typeof(Visibility), typeof(Visibility))]
+    internal class AntiVisibilityConverter: IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            return (Visibility)value == Visibility.Visible ? Visibility.Collapsed : Visibility.Visible;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            return (Visibility)value == Visibility.Visible ? Visibility.Collapsed : Visibility.Visible;
+        }
+    }
+}

Demo/Examples/Compdfkit.Controls/Common/Convert/SubtractionConverter.cs

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+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Data;
+
+namespace ComPDFKit.Controls.Common 
+{
+    [ValueConversion(typeof(double), typeof(double))]
+    public class SubtractionConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            if (value is double actualWidth && parameter is string parameterValue && double.TryParse(parameterValue, out double subtractValue))
+            {
+                return actualWidth - subtractValue;
+            }
+            return value;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            return null;
+        }
+    }
+}