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// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
namespace WixToolset.Dtf.Resources
{
using System;
using System.IO;
using System.Text;
using System.Reflection;
using System.Collections;
using System.Globalization;
using System.Diagnostics.CodeAnalysis;
internal enum GroupIconType
{
Unknown,
Icon,
Cursor,
}
internal struct GroupIconDirectoryInfo
{
public byte width;
public byte height;
public byte colors;
public byte reserved;
public ushort planes;
public ushort bitsPerPixel;
public uint imageSize;
public uint imageOffset; // only valid when icon group is read from .ico file.
public ushort imageIndex; // only valid when icon group is read from PE resource.
}
internal class GroupIconInfo
{
private ushort reserved;
private GroupIconType type;
private GroupIconDirectoryInfo[] images;
public GroupIconInfo()
{
this.images = new GroupIconDirectoryInfo[0];
}
public GroupIconDirectoryInfo[] DirectoryInfo { get { return this.images; } }
public void ReadFromFile(Stream stream)
{
BinaryReader reader = new BinaryReader(stream);
this.Read(reader, true);
}
public void ReadFromResource(byte[] data)
{
using (BinaryReader reader = new BinaryReader(new MemoryStream(data, false)))
{
this.Read(reader, false);
}
}
public byte[] GetResourceData()
{
byte[] data = null;
using (MemoryStream stream = new MemoryStream())
{
BinaryWriter writer = new BinaryWriter(stream);
writer.Write(this.reserved);
writer.Write((ushort)this.type);
writer.Write((ushort)this.images.Length);
for (int i = 0; i < this.images.Length; ++i)
{
writer.Write(this.images[i].width);
writer.Write(this.images[i].height);
writer.Write(this.images[i].colors);
writer.Write(this.images[i].reserved);
writer.Write(this.images[i].planes);
writer.Write(this.images[i].bitsPerPixel);
writer.Write(this.images[i].imageSize);
writer.Write(this.images[i].imageIndex);
}
data = new byte[stream.Length];
stream.Seek(0, SeekOrigin.Begin);
stream.Read(data, 0, data.Length);
}
return data;
}
private void Read(BinaryReader reader, bool readFromFile)
{
this.reserved = reader.ReadUInt16();
this.type = (GroupIconType)reader.ReadUInt16();
int imageCount = reader.ReadUInt16();
this.images = new GroupIconDirectoryInfo[imageCount];
for (int i = 0; i < imageCount; ++i)
{
this.images[i].width = reader.ReadByte();
this.images[i].height = reader.ReadByte();
this.images[i].colors = reader.ReadByte();
this.images[i].reserved = reader.ReadByte();
this.images[i].planes = reader.ReadUInt16();
this.images[i].bitsPerPixel = reader.ReadUInt16();
this.images[i].imageSize = reader.ReadUInt32();
if (readFromFile)
{
this.images[i].imageOffset = reader.ReadUInt32();
this.images[i].imageIndex = (ushort)(i + 1);
}
else
{
this.images[i].imageIndex = reader.ReadUInt16();
}
}
}
}
}
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