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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.Drawing;
using System.Formats.Nrbf;
namespace System.Windows.Forms.Nrbf;
internal static class WinFormsSerializationRecordExtensions
{
/// <summary>
/// Tries to get this object as a binary formatted <see cref="ImageListStreamer"/>.
/// </summary>
public static bool TryGetImageListStreamer(
this SerializationRecord record,
out object? imageListStreamer)
{
return SerializationRecordExtensions.TryGet(Get, record, out imageListStreamer);
static bool Get(SerializationRecord record, [NotNullWhen(true)] out object? imageListStreamer)
{
imageListStreamer = null;
if (record is not ClassRecord types
|| !types.TypeNameMatches(typeof(ImageListStreamer))
|| !types.HasMember("Data")
|| types.GetRawValue("Data") is not SZArrayRecord<byte> data)
{
return false;
}
imageListStreamer = new ImageListStreamer(data.GetArray());
return true;
}
}
/// <summary>
/// Tries to get this object as a binary formatted <see cref="Bitmap"/>.
/// </summary>
public static bool TryGetBitmap(this SerializationRecord record, out object? bitmap)
{
bitmap = null;
if (record is not ClassRecord types
|| !types.TypeNameMatches(typeof(Bitmap))
|| !types.HasMember("Data")
|| types.GetRawValue("Data") is not SZArrayRecord<byte> data)
{
return false;
}
bitmap = new Bitmap(new MemoryStream(data.GetArray()));
return true;
}
/// <summary>
/// Try to get a supported object. This supports common types used in WinForms that do not have type converters.
/// </summary>
public static bool TryGetResXObject(this SerializationRecord record, [NotNullWhen(true)] out object? value) =>
record.TryGetFrameworkObject(out value)
|| record.TryGetBitmap(out value)
|| record.TryGetImageListStreamer(out value);
public static bool TryGetCommonObject(this SerializationRecord record, [NotNullWhen(true)] out object? value) =>
record.TryGetResXObject(out value)
|| record.TryGetDrawingPrimitivesObject(out value);
}
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