public static ResIconDir FromFile(Boolean isIcon, Stream stream, UInt16 lang, ResourceSource source)
{
ResIconDir retval = new ResIconDir(isIcon, lang, source);
FromFile(stream, lang, source, retval);
return(retval);
}
public static ResIconDir FromResource(ResourceLang lang, Byte[] rawBytes)
{
Int32 sizeOfIconDir = Marshal.SizeOf(typeof(IconDirectory));
Int32 sizeOfDirEntr = Marshal.SizeOf(typeof(ResIconDirectoryEntry));
// the data in here is an ICONDIR structure
IntPtr p = Marshal.AllocHGlobal(rawBytes.Length);
Marshal.Copy(rawBytes, 0, p, rawBytes.Length);
// this could be vastly simplified by correctly marshaling the member array of IconDirectory
// but that's a can of worms, I'd rather not
IconDirectory dir = (IconDirectory)Marshal.PtrToStructure(p, typeof(IconDirectory));
Marshal.FreeHGlobal(p);
if (dir.wType != 1 && dir.wType != 2)
{
throw new InvalidOperationException("Provided rawData is not an icon or cursor");
}
ResIconDirectoryEntry[] subImages = new ResIconDirectoryEntry[dir.wCount];
for (int i = 0; i < dir.wCount; i++)
{
Int32 byteOffset = sizeOfIconDir + sizeOfDirEntr * i;
p = Marshal.AllocHGlobal(sizeOfDirEntr);
Marshal.Copy(rawBytes, byteOffset, p, sizeOfDirEntr);
ResIconDirectoryEntry img = (ResIconDirectoryEntry)Marshal.PtrToStructure(p, typeof(ResIconDirectoryEntry));
subImages[i] = img;
}
ResIconDir retval = new ResIconDir(dir.wType == 1, lang.LanguageId, lang.Name.Type.Source);
// then we might be able to get the resourcedata for the subimages to include in the directory
// find the Icon Image resource type
ResourceType imageType = null;
Win32ResourceType desired = dir.wType == 1 ? Win32ResourceType.IconImage : Win32ResourceType.CursorImage;
foreach (ResourceType type in lang.Name.Type.Source.AllTypes)
{
if (type.Identifier.KnownType == desired)
{
imageType = type;
break;
}
}
if (imageType != null)
{
foreach (ResIconDirectoryEntry img in subImages)
{
IconCursorImageResourceData rd = GetDataFromWid(imageType, lang, img.wId);
Size dimensions = new Size(img.bWidth == 0 ? 256 : img.bWidth, img.bHeight == 0 ? 256 : img.bHeight);
// cursors might have Height == 0, so it should copy the width rather than being set to 256
retval.Members.Add(new IconDirectoryMember(rd, dimensions, img.bColorCount, img.bReserved, img.wPlanes, img.wBitCount, img.dwBytesInRes));
}
}
return(retval);
}
public static void FromFile(Stream stream, UInt16 lang, ResourceSource source, ResIconDir resDir)
{
if (stream.Length < Marshal.SizeOf(typeof(IconDirectory)))
{
return;
}
BinaryReader rdr = new BinaryReader(stream);
IconDirectory?tDir = ReadIcoHeader(rdr);
if (tDir == null)
{
return;
}
IconDirectory dir = tDir.Value;
///////////////////////////////
// rdr is now at the beginning of the array of FileIconDirectoryMembers
FileIconDirectoryEntry[] subImages = new FileIconDirectoryEntry[dir.wCount];
for (int i = 0; i < dir.wCount; i++)
{
subImages[i] = ReadFileDirMember(rdr);
}
/////////////////////////////
// now for image data itself
IconImageResourceDataFactory factory = GetIconImageFactory();
for (int i = 0; i < dir.wCount; i++)
{
FileIconDirectoryEntry img = subImages[i];
stream.Seek(img.dwImageOffset, SeekOrigin.Begin);
Byte[] data = new Byte[img.dwBytesInRes];
stream.Read(data, 0, (int)img.dwBytesInRes);
Size dimensions = new Size(img.bWidth == 0 ? 256 : img.bWidth, img.bHeight == 0 ? 256 : img.bHeight);
IconCursorImageResourceData memberImageData = factory.FromResource(null, data) as IconCursorImageResourceData;
IconDirectoryMember member = new IconDirectoryMember(memberImageData, dimensions, img.bColorCount, img.bReserved, img.wPlanes, img.wBitCount, img.dwBytesInRes);
resDir.AddUpdateMemberImage(member);
}
}
