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Ankitkumar Satapara
2026-04-17 22:31:58 +05:30
commit 21aaef6776
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35
Examples/Nodify.Shared/Converters/BooleanToVisibilityConverter.cs Normal file
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using System;
using System.Globalization;
using System.Windows;
using System.Windows.Data;
using System.Windows.Markup;
namespace Nodify
{
public class BooleanToVisibilityConverter : MarkupExtension, IValueConverter
{
public Visibility FalseVisibility { get; set; } = Visibility.Collapsed;
public bool Negate { get; set; }
public object? Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
string? stringValue = value?.ToString();
if (bool.TryParse(stringValue, out var b))
{
return (Negate ? !b : b) ? Visibility.Visible : FalseVisibility;
}
else if (double.TryParse(stringValue, out var d))
{
return (Negate ? !(d > 0) : (d > 0)) ? Visibility.Visible : FalseVisibility;
}
bool result = value != null;
return (Negate ? !result : result) ? Visibility.Visible : FalseVisibility;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
=> value is Visibility v && v == Visibility.Visible;
public override object ProvideValue(IServiceProvider serviceProvider) => this;
}
}

33
Examples/Nodify.Shared/Converters/ColorToSolidColorBrushConverter.cs Normal file
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using System;
using System.Globalization;
using System.Windows.Data;
using System.Windows.Media;
namespace Nodify
{
public class ColorToSolidColorBrushConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if (value is Color color)
{
var brush = new SolidColorBrush(color);
if(double.TryParse(parameter?.ToString(), out double opacity))
brush.Opacity = opacity;
return brush;
}
return value;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
if (value is SolidColorBrush brush)
return brush.Color;
return value;
}
}
}

24
Examples/Nodify.Shared/Converters/DebugConverter.cs Normal file
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using System;
using System.Globalization;
using System.Windows.Data;
using System.Windows.Markup;
namespace Nodify
{
public class DebugConverter : MarkupExtension, IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
Console.WriteLine($"Value: {value} :: Parameter: {parameter}");
return value;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
Console.WriteLine($"Value: {value} :: Parameter: {parameter}");
return value;
}
public override object ProvideValue(IServiceProvider serviceProvider) => this;
}
}

49
Examples/Nodify.Shared/Converters/EnumValuesConverter.cs Normal file
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using System;
using System.Globalization;
using System.Windows.Data;
using System.Windows.Markup;
namespace Nodify
{
public readonly struct EnumValue
{
public EnumValue(string name, object? value)
{
Name = name;
Value = value;
}
public string Name { get; }
public object? Value { get; }
}
public class EnumValuesConverter : MarkupExtension, IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if (value is Enum enumValue)
{
var type = enumValue.GetType();
var values = Enum.GetValues(type);
var names = Enum.GetNames(type);
EnumValue[] result = new EnumValue[values.Length];
for (int i = 0; i < values.Length; i++)
{
result[i] = new EnumValue(names[i], values.GetValue(i));
}
return result;
}
return value;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
public override object ProvideValue(IServiceProvider serviceProvider) => this;
}
}

25
Examples/Nodify.Shared/Converters/InverseBooleanConverter.cs Normal file
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using System;
using System.Globalization;
using System.Windows.Data;
namespace Nodify
{
public class InverseBooleanConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if (targetType != typeof(bool))
throw new InvalidOperationException("The value must be of type bool.");
return !(bool)value;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
if (targetType != typeof(bool))
throw new InvalidOperationException("The value must be of type bool.");
return !(bool)value;
}
}
}

37
Examples/Nodify.Shared/Converters/MultiValueEqualityConverter.cs Normal file
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using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Windows.Data;
namespace Nodify
{
public class MultiValueEqualityConverter : IMultiValueConverter
{
public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
{
if (values == null)
{
return false;
}
return AllElementsEqual(values) || AllElementsNull(values);
}
public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
private static bool AllElementsEqual(IEnumerable<object> values)
{
object? firstElement = values.FirstOrDefault();
return values.All(o => o?.Equals(firstElement) == true);
}
private static bool AllElementsNull(IEnumerable<object> values)
{
return values.All(o => o == null);
}
}
}

30
Examples/Nodify.Shared/Converters/RandomBrushConverter.cs Normal file
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using System;
using System.Globalization;
using System.Windows.Data;
using System.Windows.Media;
namespace Nodify
{
public class RandomBrushConverter : IValueConverter
{
private readonly Random _rand = new Random();
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if (double.TryParse(parameter?.ToString(), out double alpha))
{
return new SolidColorBrush(Color.FromRgb((byte)_rand.Next(256), (byte)_rand.Next(256), (byte)_rand.Next(256)))
{
Opacity = alpha
};
}
return new SolidColorBrush(Color.FromRgb((byte)_rand.Next(256), (byte)_rand.Next(256), (byte)_rand.Next(256)));
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
return value;
}
}
}

30
Examples/Nodify.Shared/Converters/ResizeDirectionToVisiblityConverter.cs Normal file
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using System;
using System.Globalization;
using System.Windows;
using System.Windows.Data;
namespace Nodify
{
internal class ResizeDirectionToVisiblityConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if (!(value is ResizeDirections resizeDirections))
{
return Visibility.Collapsed;
}
if (Enum.TryParse(parameter.ToString(), out ResizeDirections direction))
{
return resizeDirections.HasFlag(direction) ? Visibility.Visible : Visibility.Collapsed;
}
return Visibility.Collapsed;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}
}

21
Examples/Nodify.Shared/Converters/StringToVisibilityConverter.cs Normal file
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using System;
using System.Globalization;
using System.Windows;
using System.Windows.Data;
using System.Windows.Markup;
namespace Nodify
{
public class StringToVisibilityConverter : MarkupExtension, IValueConverter
{
public Visibility NullVisibility { get; set; } = Visibility.Collapsed;
public object? Convert(object value, Type targetType, object parameter, CultureInfo culture)
=> string.IsNullOrEmpty(value as string) ? NullVisibility : Visibility.Visible;
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
=> throw new NotImplementedException();
public override object ProvideValue(IServiceProvider serviceProvider) => this;
}
}

35
Examples/Nodify.Shared/Converters/ToStringConverter.cs Normal file
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using System;
using System.Globalization;
using System.Windows;
using System.Windows.Data;
namespace Nodify
{
public class ToStringConverter : IValueConverter
{
public object? Convert(object? value, Type targetType, object parameter, CultureInfo culture)
{
if (value is Point p)
{
return $"{p.X:0.0}, {p.Y:0.0}";
}
if (value is Size s)
{
return $"{s.Width:0.0}, {s.Height:0.0}";
}
if(value is double d)
{
return d.ToString("0.00");
}
return value?.ToString();
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}
}