mirror of https://github.com/SixLabors/ImageSharp
Browse Source
Former-commit-id: 3130315aa377beef5f8a450649ffff180b9c42db Former-commit-id: 0a78dc90122182b36a3d0c2059dff6ad3cd2912b Former-commit-id: 315da6e6702d8276115b1af2966985c46c1b25fcaf/merge-core
James South
11 years ago
20 changed files with 452 additions and 599 deletions
@ -0,0 +1,141 @@ |
|||||
|
// --------------------------------------------------------------------------------------------------------------------
|
||||
|
// <copyright file="FontFamilyConverter.cs" company="James South">
|
||||
|
// Copyright (c) James South.
|
||||
|
// Licensed under the Apache License, Version 2.0.
|
||||
|
// </copyright>
|
||||
|
// <summary>
|
||||
|
// FontFamilyConverter - converter class for converting between the <see cref="FontFamily" />
|
||||
|
// and <see cref="String" /> types.
|
||||
|
// </summary>
|
||||
|
// --------------------------------------------------------------------------------------------------------------------
|
||||
|
|
||||
|
namespace ImageProcessor.Web.Helpers |
||||
|
{ |
||||
|
using System; |
||||
|
using System.ComponentModel; |
||||
|
using System.Drawing; |
||||
|
using System.Globalization; |
||||
|
|
||||
|
/// <summary>
|
||||
|
/// FontFamilyConverter - converter class for converting between the <see cref="FontFamily"/>
|
||||
|
/// and <see cref="String"/> types.
|
||||
|
/// </summary>
|
||||
|
public class FontFamilyConverter : TypeConverter |
||||
|
{ |
||||
|
/// <summary>
|
||||
|
/// Returns whether this converter can convert an object of the given type to the type of
|
||||
|
/// this converter, using the specified context.
|
||||
|
/// </summary>
|
||||
|
/// <returns>
|
||||
|
/// true if this converter can perform the conversion; otherwise, false.
|
||||
|
/// </returns>
|
||||
|
/// <param name="context">
|
||||
|
/// An <see cref="T:System.ComponentModel.ITypeDescriptorContext"/> that provides a format context.
|
||||
|
/// </param>
|
||||
|
/// <param name="sourceType">
|
||||
|
/// A <see cref="T:System.Type"/> that represents the type you want to convert from.
|
||||
|
/// </param>
|
||||
|
public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) |
||||
|
{ |
||||
|
if (sourceType == typeof(string)) |
||||
|
{ |
||||
|
return true; |
||||
|
} |
||||
|
|
||||
|
return base.CanConvertFrom(context, sourceType); |
||||
|
} |
||||
|
|
||||
|
/// <summary>
|
||||
|
/// Returns whether this converter can convert the object to the specified type, using
|
||||
|
/// the specified context.
|
||||
|
/// </summary>
|
||||
|
/// <returns>
|
||||
|
/// true if this converter can perform the conversion; otherwise, false.
|
||||
|
/// </returns>
|
||||
|
/// <param name="context">
|
||||
|
/// An <see cref="T:System.ComponentModel.ITypeDescriptorContext"/> that provides a format context.
|
||||
|
/// </param>
|
||||
|
/// <param name="destinationType">
|
||||
|
/// A <see cref="T:System.Type"/> that represents the type you want to convert to.
|
||||
|
/// </param>
|
||||
|
public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) |
||||
|
{ |
||||
|
if (destinationType == typeof(string) || destinationType == typeof(FontFamily)) |
||||
|
{ |
||||
|
return true; |
||||
|
} |
||||
|
|
||||
|
return base.CanConvertTo(context, destinationType); |
||||
|
} |
||||
|
|
||||
|
/// <summary>
|
||||
|
/// Converts the given object to the type of this converter, using the specified context and
|
||||
|
/// culture information.
|
||||
|
/// </summary>
|
||||
|
/// <returns>
|
||||
|
/// An <see cref="T:System.Object"/> that represents the converted value.
|
||||
|
/// </returns>
|
||||
|
/// <param name="context">
|
||||
|
/// An <see cref="T:System.ComponentModel.ITypeDescriptorContext"/> that provides a format context.
|
||||
|
/// </param>
|
||||
|
/// <param name="culture">
|
||||
|
/// The <see cref="T:System.Globalization.CultureInfo"/> to use as the current culture.
|
||||
|
/// </param>
|
||||
|
/// <param name="value">The <see cref="T:System.Object"/> to convert. </param>
|
||||
|
/// <exception cref="T:System.NotSupportedException">The conversion cannot be performed. </exception>
|
||||
|
public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value) |
||||
|
{ |
||||
|
string s = value as string; |
||||
|
if (!string.IsNullOrWhiteSpace(s)) |
||||
|
{ |
||||
|
return new FontFamily(s); |
||||
|
} |
||||
|
|
||||
|
return base.ConvertFrom(context, culture, value); |
||||
|
} |
||||
|
|
||||
|
/// <summary>
|
||||
|
/// Converts the given value object to the specified type, using the specified context and culture
|
||||
|
/// information.
|
||||
|
/// </summary>
|
||||
|
/// <returns>
|
||||
|
/// An <see cref="T:System.Object"/> that represents the converted value.
|
||||
|
/// </returns>
|
||||
|
/// <param name="context">
|
||||
|
/// An <see cref="T:System.ComponentModel.ITypeDescriptorContext"/> that provides a format context.
|
||||
|
/// </param>
|
||||
|
/// <param name="culture">
|
||||
|
/// A <see cref="T:System.Globalization.CultureInfo"/>. If null is passed, the current culture is assumed.
|
||||
|
/// </param><param name="value">The <see cref="T:System.Object"/> to convert. </param>
|
||||
|
/// <param name="destinationType">
|
||||
|
/// The <see cref="T:System.Type"/> to convert the <paramref name="value"/> parameter to.
|
||||
|
/// </param>
|
||||
|
/// <exception cref="T:System.ArgumentNullException">The <paramref name="destinationType"/> parameter is null. </exception>
|
||||
|
/// <exception cref="T:System.NotSupportedException">The conversion cannot be performed. </exception>
|
||||
|
public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) |
||||
|
{ |
||||
|
if (null == value) |
||||
|
{ |
||||
|
throw new ArgumentNullException("value"); |
||||
|
} |
||||
|
|
||||
|
FontFamily fontFamily = value as FontFamily; |
||||
|
if (fontFamily == null) |
||||
|
{ |
||||
|
throw new ArgumentException("value"); |
||||
|
} |
||||
|
|
||||
|
if (null == destinationType) |
||||
|
{ |
||||
|
throw new ArgumentNullException("destinationType"); |
||||
|
} |
||||
|
|
||||
|
if (destinationType == typeof(string)) |
||||
|
{ |
||||
|
return fontFamily.Name; |
||||
|
} |
||||
|
|
||||
|
return base.ConvertTo(context, culture, value, destinationType); |
||||
|
} |
||||
|
} |
||||
|
} |
||||
Loading…
Reference in new issue