//public void AddChannel(Channel ch)
//{
// this._channels.Add(ch.Usage, ch);
//}
public Layer(BinaryPSDReader reader, Document document)
{
this._document = document;
this._rect = reader.ReadPSDRectangle();
ushort numChannels = reader.ReadUInt16();
this._channels = new Dictionary <int, Channel>();
for (int channelNum = 0; channelNum < numChannels; channelNum++)
{
Channel ch = new Channel(reader, this);
if (this._channels.ContainsKey(ch.Usage))
{
continue; //TODO: !!
}
this._channels.Add(ch.Usage, ch);
}
string sHeader = new string(reader.ReadPSDChars(4));
if (sHeader != "8BIM")
{
throw(new Exception("Layer Channelheader error!"));
}
//'levl'=Levels 'curv'=Curves 'brit'=Brightness/contrast 'blnc'=Color balance 'hue '=Old Hue/saturation, Photoshop 4.0 'hue2'=New Hue/saturation, Photoshop 5.0 'selc'=Selective color 'thrs'=Threshold 'nvrt'=Invert 'post'=Posterize
this.BlendKey = new string(reader.ReadPSDChars(4));
int nBlend = -1;
try
{
nBlend = (int)Enum.Parse(typeof(_blendKeysPsd), this.BlendKey);
}
catch
{
throw new Exception("Unknown blend key: " + this.BlendKey);
}
if (nBlend >= 0)
{
BlendKeys key = (BlendKeys)nBlend;
this.BlendKey = Enum.GetName(typeof(BlendKeys), key);
}
this.Opacity = reader.ReadByte();
this.Clipping = reader.ReadByte();
this.Flags = reader.ReadByte();
reader.ReadByte(); //padding
uint extraDataSize = reader.ReadUInt32();
long nChannelEndPos = reader.BaseStream.Position + (long)extraDataSize;
if (extraDataSize > 0)
{
uint nLength;
this._mask = new Mask(reader, this);
if (this._mask.Rectangle == null)
{
this._mask = null;
}
//blending ranges
this._blendRanges = new List <System.Drawing.Color>();
nLength = reader.ReadUInt32();
//First come Composite gray blend source / destination; Contains 2 black values followed by 2 white values. Present but irrelevant for Lab & Grayscale.
//Then 4+4 for each channel (source + destination colors)
for (uint i = 0; i < nLength / 8; i++)
{
this._blendRanges.Add(System.Drawing.Color.FromArgb((int)reader.ReadUInt32()));
this._blendRanges.Add(System.Drawing.Color.FromArgb((int)reader.ReadUInt32()));
}
//Name
//nLength = (uint)reader.ReadByte();
//reader.BaseStream.Position -= 1; //TODO: wtf did I do here?
this.Name = reader.ReadPascalString();
//TODO: sometimes there's a 2-byte padding here, but it's not 4-aligned... What is it?
long posBefore = reader.BaseStream.Position;
sHeader = new string(reader.ReadPSDChars(4));
if (sHeader != "8BIM")
{
reader.BaseStream.Position -= 2;
sHeader = new string(reader.ReadPSDChars(4));
}
if (sHeader != "8BIM")
{
reader.BaseStream.Position = posBefore;
}
else
{
reader.BaseStream.Position -= 4;
this._resources = LayerResource.ReadLayerResources(reader, null);
}
if (reader.BaseStream.Position != nChannelEndPos)
{
reader.BaseStream.Position = nChannelEndPos;
}
}
}
public void Write(BinaryPSDWriter writer)
{
writer.WritePSDRectangle(this._rect); // new Rectangle(this._rect).Write(writer);
writer.Write((ushort)this._channels.Count);
foreach (Channel channel in this._channels.Values)
{
channel.Write(writer);
}
writer.Write("8BIM");
BlendKeys bk = (BlendKeys)Enum.Parse(typeof(BlendKeys), this.BlendKey);
_blendKeysPsd bkPsd = (_blendKeysPsd)(int)bk;
writer.Write(bkPsd.ToString());
writer.Write(this.Opacity);
writer.Write(this.Clipping);
writer.Write(this.Flags);
writer.Write((byte)0); //padding
writer.StartLengthBlock(typeof(uint));
if (this._mask != null || (this._blendRanges != null && this._blendRanges.Count > 0) || !string.IsNullOrEmpty(this.Name))
{
if (this._mask != null)
{
this._mask.Write(writer);
}
else
{
writer.Write((uint)0); //TODO: should be a static of Mask..?
}
//blending ranges
writer.Write((uint)this._blendRanges.Count * 4);
foreach (System.Drawing.Color clr in this._blendRanges)
{
writer.Write((uint)clr.ToArgb());
}
//why is there padding here? Seems unnecessary.
long namePosition = writer.BaseStream.Position;
writer.WritePascalString(this.Name);
int paddingBytes = (int)((writer.BaseStream.Position - namePosition) % 4);
for (int i = 0; i < paddingBytes; i++)
{
writer.Write((byte)0);
}
foreach (LayerResource res in this._resources.Values)
{
res.Write(writer);
}
}
writer.EndLengthBlock();
}
public Layer(BinaryReverseReader reader, Document document)
{
this._document = document;
this._rect = new ERectangle();
this._rect.Y = reader.ReadInt32();
this._rect.X = reader.ReadInt32();
this._rect.Height = reader.ReadInt32() - this._rect.Y;
this._rect.Width = reader.ReadInt32() - this._rect.X;
this.NumChannels = reader.ReadUInt16();
this._channels = new Dictionary <int, Channel>();
for (int channelNum = 0; channelNum < this.NumChannels; channelNum++)
{
Channel ch = new Channel(reader, this);
this._channels.Add(ch.Usage, ch);
}
string sHeader = new string(reader.ReadChars(4));
if (sHeader != "8BIM")
{
throw(new Exception("Layer Channelheader error!"));
}
this.BlendKey = new string(reader.ReadChars(4));
int nBlend = -1;
try
{
nBlend = (int)Enum.Parse(typeof(_blendKeysPsd), this.BlendKey);
}
catch { }
if (nBlend >= 0)
{
BlendKeys key = (BlendKeys)nBlend;
this.BlendKey = Enum.GetName(typeof(BlendKeys), key);
}
this.Opacity = reader.ReadByte(); //(byte)(255 - (int)reader.ReadByte());
//paLayerInfo[#Opacity] = 256 - m_oReader.readUC() --256-ScaleCharToQuantum(ReadBlobByte(image))
this.Clipping = reader.ReadByte();
this.Flags = reader.ReadByte();
reader.ReadByte(); //padding
uint nSize = reader.ReadUInt32();
long nChannelEndPos = reader.BaseStream.Position + (long)nSize;
if (nSize > 0)
{
uint nLength;
//uint nCombinedlength = 0;
this._mask = new Mask(reader, this);
if (this._mask.Rectangle == null)
{
this._mask = null;
}
//reader.BaseStream.Position+=nLength-16;
//nCombinedlength+= nLength + 4;
//blending ranges
nLength = reader.ReadUInt32();
for (uint i = 0; i < nLength / 8; i++)
{
uint color1 = reader.ReadUInt32();
uint color2 = reader.ReadUInt32();
}
//nCombinedlength+= nLength + 4;
//Name
nLength = (uint)reader.ReadByte();
reader.BaseStream.Position -= 1;
this.Name = reader.ReadPascalString();
//nCombinedlength+= nLength + 4;
#region Adjustment etc layers
//TODO: there's probably a 2-byte padding here
sHeader = new string(reader.ReadChars(4));
if (sHeader != "8BIM")
{
reader.BaseStream.Position -= 2;
sHeader = new string(reader.ReadChars(4));
}
reader.BaseStream.Position -= 4;
do
{
try
{
this.ReadPSDChannelTag(reader);
}
catch
{
//dunno what the last bytes are for, just skip them:
reader.BaseStream.Position = nChannelEndPos;
}
}while(reader.BaseStream.Position < nChannelEndPos);
#endregion
}
}
