initial commit
This commit is contained in:
Matthias Heil
@@ -0,0 +1,54 @@
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.ComponentModel;
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namespace Avalonia.PropertyGrid.Models;
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/// <summary>
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/// Represents a category group in the PropertyGrid
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/// </summary>
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public class CategoryGroup : INotifyPropertyChanged
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{
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private bool _isExpanded = true;
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/// <summary>
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/// Occurs when a property value changes.
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/// </summary>
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public event PropertyChangedEventHandler? PropertyChanged;
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/// <summary>
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/// The category name
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/// </summary>
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public string CategoryName { get; set; } = string.Empty;
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/// <summary>
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/// Properties in this category
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/// </summary>
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public ObservableCollection<PropertyItem> Properties { get; set; } = new();
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/// <summary>
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/// Whether the category is expanded
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/// </summary>
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public bool IsExpanded
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{
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get => _isExpanded;
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set
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{
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if (_isExpanded != value)
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{
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_isExpanded = value;
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OnPropertyChanged(nameof(IsExpanded));
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}
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}
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}
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/// <summary>
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/// Number of properties in this category
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/// </summary>
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public int PropertyCount => Properties.Count;
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protected virtual void OnPropertyChanged(string propertyName)
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{
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PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
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}
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}
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@@ -0,0 +1,54 @@
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using System.Collections.Generic;
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using System.Linq;
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namespace Avalonia.PropertyGrid.Models;
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/// <summary>
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/// Represents a category group of properties
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/// </summary>
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public class PropertyCategory
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{
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/// <summary>
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/// Gets or sets the category name.
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/// </summary>
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public string Name { get; set; } = string.Empty;
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/// <summary>
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/// Gets or sets the list of properties in this category.
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/// </summary>
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public List<PropertyItem> Properties { get; set; } = new();
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/// <summary>
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/// Gets or sets whether the category is expanded in the UI.
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/// </summary>
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public bool IsExpanded { get; set; } = true;
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/// <summary>
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/// Gets or sets the display order of the category.
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/// </summary>
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public int Order { get; set; }
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}
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/// <summary>
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/// Helper for grouping properties by category
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/// </summary>
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public static class PropertyCategoryHelper
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{
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/// <summary>
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/// Groups a list of properties by their category.
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/// </summary>
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public static List<PropertyCategory> GroupByCategory(List<PropertyItem> properties)
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{
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return properties.GroupBy(p => p.Category)
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.Select(g => new PropertyCategory
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{
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Name = g.Key,
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Properties = g.ToList(),
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IsExpanded = true,
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Order = g.Min(p => p.Order)
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})
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.OrderBy(c => c.Order)
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.ThenBy(c => c.Name)
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.ToList();
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}
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}
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@@ -0,0 +1,311 @@
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Globalization;
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using System.Reflection;
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namespace Avalonia.PropertyGrid.Models;
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/// <summary>
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/// Represents a single property item in the PropertyGrid
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/// </summary>
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public class PropertyItem : INotifyPropertyChanged
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{
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private object? _value;
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private bool _isExpanded;
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/// <summary>
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/// Occurs when a property value changes.
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/// </summary>
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public event PropertyChangedEventHandler? PropertyChanged;
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/// <summary>
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/// The property name displayed in the grid
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/// </summary>
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public string Name { get; set; } = string.Empty;
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/// <summary>
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/// The display name (from DisplayAttribute or DisplayNameAttribute)
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/// </summary>
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public string DisplayName { get; set; } = string.Empty;
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/// <summary>
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/// The property description
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/// </summary>
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public string? Description { get; set; }
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/// <summary>
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/// The category this property belongs to
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/// </summary>
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public string Category { get; set; } = "Misc";
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/// <summary>
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/// The property value
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/// </summary>
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public object? Value
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{
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get => _value;
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set
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{
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if (_value != value)
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{
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_value = value;
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OnPropertyChanged(nameof(Value));
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OnPropertyChanged(nameof(ValueString));
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OnPropertyChanged(nameof(NumericValue));
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OnPropertyChanged(nameof(ColorValue));
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OnPropertyChanged(nameof(BooleanValue));
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// Update the actual object property
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if (PropertyInfo != null && Instance != null)
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{
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try
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{
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PropertyInfo.SetValue(Instance, value);
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}
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catch
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{
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// Ignore errors during setting
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}
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}
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}
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}
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}
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/// <summary>
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/// Numeric value for NumericUpDown binding (converts to/from decimal)
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/// </summary>
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public decimal NumericValue
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{
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get
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{
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if (Value == null) return 0;
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try
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{
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return Convert.ToDecimal(Value, CultureInfo.InvariantCulture);
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}
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catch
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{
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return 0;
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}
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}
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set
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{
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try
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{
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// Convert decimal to the actual property type
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object? converted = null;
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if (PropertyType == typeof(int)) converted = (int)value;
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else if (PropertyType == typeof(long)) converted = (long)value;
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else if (PropertyType == typeof(short)) converted = (short)value;
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else if (PropertyType == typeof(byte)) converted = (byte)value;
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else if (PropertyType == typeof(uint)) converted = (uint)value;
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else if (PropertyType == typeof(ulong)) converted = (ulong)value;
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else if (PropertyType == typeof(ushort)) converted = (ushort)value;
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else if (PropertyType == typeof(sbyte)) converted = (sbyte)value;
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else if (PropertyType == typeof(float)) converted = (float)value;
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else if (PropertyType == typeof(double)) converted = (double)value;
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else if (PropertyType == typeof(decimal)) converted = value;
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if (converted != null)
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{
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Value = converted;
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}
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}
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catch
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{
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// Ignore conversion errors
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}
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}
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}
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/// <summary>
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/// Color value for ColorPicker binding
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/// </summary>
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public Media.Color ColorValue
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{
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get
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{
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if (Value is Media.Color color)
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{
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System.Diagnostics.Debug.WriteLine($"ColorValue getter: returning {color}");
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return color;
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}
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System.Diagnostics.Debug.WriteLine($"ColorValue getter: Value is not Color (is {Value?.GetType().Name ?? "null"}), returning Black");
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return Media.Colors.Black;
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}
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set
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{
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System.Diagnostics.Debug.WriteLine($"ColorValue setter: setting to {value}");
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Value = value;
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}
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}
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/// <summary>
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/// Boolean value for RadioButton binding
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/// </summary>
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public bool BooleanValue
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{
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get
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{
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if (Value is bool boolVal)
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{
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return boolVal;
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}
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return false;
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}
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set
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{
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Value = value;
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}
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}
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/// <summary>
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/// String representation of the value for display
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/// </summary>
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public string ValueString
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{
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get
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{
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if (Value is Media.Color color)
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{
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return $"#{color.A:X2}{color.R:X2}{color.G:X2}{color.B:X2}";
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}
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return Value?.ToString() ?? string.Empty;
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}
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set
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{
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// Try to parse as color if the property type is Color
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if (PropertyType == typeof(Media.Color))
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{
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try
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{
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var hexString = value?.Trim() ?? "";
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if (!hexString.StartsWith("#"))
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hexString = "#" + hexString;
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Value = Media.Color.Parse(hexString);
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}
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catch
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{
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// If parsing fails, ignore
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}
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}
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else
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{
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// For other types, try to convert the string to the property type
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try
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{
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if (!string.IsNullOrEmpty(value))
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{
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Value = Convert.ChangeType(value, PropertyType, CultureInfo.InvariantCulture);
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}
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}
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catch
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{
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// If conversion fails, ignore
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}
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}
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}
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}
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/// <summary>
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/// The property type
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/// </summary>
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public Type PropertyType { get; set; } = typeof(object);
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/// <summary>
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/// Whether the property is read-only
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/// </summary>
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public bool IsReadOnly { get; set; }
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/// <summary>
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/// Whether the property is browsable (visible)
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/// </summary>
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public bool IsBrowsable { get; set; } = true;
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/// <summary>
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/// Whether the property is expandable (has sub-properties)
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/// </summary>
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public bool IsExpandable { get; set; }
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/// <summary>
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/// Whether the property is currently expanded
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/// </summary>
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public bool IsExpanded
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{
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get => _isExpanded;
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set
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{
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if (_isExpanded != value)
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{
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_isExpanded = value;
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OnPropertyChanged(nameof(IsExpanded));
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}
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}
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}
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/// <summary>
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/// Child properties (for complex types)
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/// </summary>
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public List<PropertyItem> Children { get; set; } = new();
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/// <summary>
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/// The PropertyInfo reflection object
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/// </summary>
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public PropertyInfo? PropertyInfo { get; set; }
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/// <summary>
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/// The object instance this property belongs to
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/// </summary>
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public object? Instance { get; set; }
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/// <summary>
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/// Custom editor type for this property
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/// </summary>
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public Type? EditorType { get; set; }
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/// <summary>
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/// The indentation level (for nested properties)
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/// </summary>
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public int IndentLevel { get; set; }
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/// <summary>
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/// Custom converter for this property
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/// </summary>
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public TypeConverter? Converter { get; set; }
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/// <summary>
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/// Order/priority for display
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/// </summary>
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public int Order { get; set; }
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/// <summary>
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/// Raises the PropertyChanged event.
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/// </summary>
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protected virtual void OnPropertyChanged(string propertyName)
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{
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PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
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}
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/// <summary>
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/// Refreshes the value from the source instance
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/// </summary>
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public void RefreshValue()
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{
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if (PropertyInfo != null && Instance != null)
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{
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try
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{
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_value = PropertyInfo.GetValue(Instance);
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OnPropertyChanged(nameof(Value));
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OnPropertyChanged(nameof(ValueString));
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}
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catch
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{
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// Ignore errors during refresh
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}
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}
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}
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}
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