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#nullable disable
using System;
using System.ComponentModel;
using System.Globalization;
using Microsoft.Maui.Controls.Xaml;
namespace Microsoft.Maui.Controls
{
/// <include file="../../docs/Microsoft.Maui.Controls/FontSizeConverter.xml" path="Type[@FullName='Microsoft.Maui.Controls.FontSizeConverter']/Docs/*" />
[ProvideCompiled("Microsoft.Maui.Controls.XamlC.FontSizeTypeConverter")]
public class FontSizeConverter : TypeConverter, IExtendedTypeConverter
{
public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType)
=> sourceType == typeof(string);
public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType)
=> destinationType == typeof(string);
object IExtendedTypeConverter.ConvertFromInvariantString(string value, IServiceProvider serviceProvider)
{
if (value != null)
{
value = value.Trim();
if (double.TryParse(value, NumberStyles.Number, CultureInfo.InvariantCulture, out double size))
return size;
#pragma warning disable CS0612 // Type or member is obsolete
var ignoreCase = (serviceProvider?.GetService(typeof(IConverterOptions)) as IConverterOptions)?.IgnoreCase ?? false;
var sc = ignoreCase ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal;
NamedSize? namedSize = null;
if (value.Equals(nameof(NamedSize.Default), sc))
namedSize = NamedSize.Default;
else if (value.Equals(nameof(NamedSize.Micro), sc))
namedSize = NamedSize.Micro;
else if (value.Equals(nameof(NamedSize.Small), sc))
namedSize = NamedSize.Small;
else if (value.Equals(nameof(NamedSize.Medium), sc))
namedSize = NamedSize.Medium;
else if (value.Equals(nameof(NamedSize.Large), sc))
namedSize = NamedSize.Large;
else if (value.Equals(nameof(NamedSize.Body), sc))
namedSize = NamedSize.Body;
else if (value.Equals(nameof(NamedSize.Caption), sc))
namedSize = NamedSize.Caption;
else if (value.Equals(nameof(NamedSize.Header), sc))
namedSize = NamedSize.Header;
else if (value.Equals(nameof(NamedSize.Subtitle), sc))
namedSize = NamedSize.Subtitle;
else if (value.Equals(nameof(NamedSize.Title), sc))
namedSize = NamedSize.Title;
else if (Enum.TryParse(value, ignoreCase, out NamedSize ns))
namedSize = ns;
if (namedSize.HasValue)
{
var type = serviceProvider.GetService(typeof(IProvideValueTarget)) is IProvideValueTarget valueTargetProvider ? valueTargetProvider.TargetObject.GetType() : typeof(Label);
return Device.GetNamedSize(namedSize.Value, type, false);
}
#pragma warning restore CS0612 // Type or member is obsolete
}
throw new InvalidOperationException(string.Format("Cannot convert \"{0}\" into {1}", value, typeof(double)));
}
public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
{
var strValue = value?.ToString();
if (strValue != null)
{
if (double.TryParse(strValue, NumberStyles.Number, CultureInfo.InvariantCulture, out double size))
return size;
strValue = strValue.Trim();
#pragma warning disable CS0612 // Type or member is obsolete
if (strValue.Equals(nameof(NamedSize.Default), StringComparison.Ordinal))
return Device.GetNamedSize(NamedSize.Default, typeof(Label), false);
if (strValue.Equals(nameof(NamedSize.Micro), StringComparison.Ordinal))
return Device.GetNamedSize(NamedSize.Micro, typeof(Label), false);
if (strValue.Equals(nameof(NamedSize.Small), StringComparison.Ordinal))
return Device.GetNamedSize(NamedSize.Small, typeof(Label), false);
if (strValue.Equals(nameof(NamedSize.Medium), StringComparison.Ordinal))
return Device.GetNamedSize(NamedSize.Medium, typeof(Label), false);
if (strValue.Equals(nameof(NamedSize.Large), StringComparison.Ordinal))
return Device.GetNamedSize(NamedSize.Large, typeof(Label), false);
if (strValue.Equals(nameof(NamedSize.Body), StringComparison.Ordinal))
return Device.GetNamedSize(NamedSize.Body, typeof(Label), false);
if (strValue.Equals(nameof(NamedSize.Caption), StringComparison.Ordinal))
return Device.GetNamedSize(NamedSize.Caption, typeof(Label), false);
if (strValue.Equals(nameof(NamedSize.Header), StringComparison.Ordinal))
return Device.GetNamedSize(NamedSize.Header, typeof(Label), false);
if (strValue.Equals(nameof(NamedSize.Subtitle), StringComparison.Ordinal))
return Device.GetNamedSize(NamedSize.Subtitle, typeof(Label), false);
if (strValue.Equals(nameof(NamedSize.Title), StringComparison.Ordinal))
return Device.GetNamedSize(NamedSize.Title, typeof(Label), false);
if (Enum.TryParse(strValue, out NamedSize namedSize))
return Device.GetNamedSize(namedSize, typeof(Label), false);
#pragma warning restore CS0612 // Type or member is obsolete
}
throw new InvalidOperationException(string.Format("Cannot convert \"{0}\" into {1}", strValue, typeof(double)));
}
public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
{
if (value is not double d)
throw new NotSupportedException();
return $"{d.ToString(CultureInfo.InvariantCulture)}";
}
}
}
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