public Layer( string name, Point location, Bitmap src )
{
this.file = null;
this.name = name;
this.location = location;
image = src == null ? null : ((Bitmap)src.Clone());
clipping = LayerClipping.Base;
opacity = 255;
visible = true;
protecttrans = false;
mode = LayerMode.Normal;
mask = null;
adjustments = new LayerAdjustment[0];
}
public void ReadDefinitionFrom( BinaryReader reader )
{
// Read bounds
int top = IPAddress.NetworkToHostOrder( reader.ReadInt32() );
int left = IPAddress.NetworkToHostOrder( reader.ReadInt32() );
int bottom = IPAddress.NetworkToHostOrder( reader.ReadInt32() );
int right = IPAddress.NetworkToHostOrder( reader.ReadInt32() );
bounds = Rectangle.FromLTRB( left, top, right, bottom );
maskbounds = bounds;
hasmask = false;
channels = new Channels( reader );
// Blend info
Utils.CheckSignature( reader, "8BIM", new InvalidBlendSignature() );
blendkey = new string( reader.ReadChars( 4 ) );
opacity = reader.ReadByte();
clipping = reader.ReadByte() == 0 ? LayerClipping.Base : LayerClipping.NonBase;
// Flags
byte flags = reader.ReadByte();
protecttrans = (flags & 1) != 0;
visible = (flags & 2) == 0;
reader.ReadByte(); // filler
// extra data (?)
int extradatasize = IPAddress.NetworkToHostOrder( reader.ReadInt32() );
if ( extradatasize > 0 ) extradatasize += (int)reader.BaseStream.Position;
// Layer mask data
int datasize = IPAddress.NetworkToHostOrder( reader.ReadInt32() );
if ( datasize > 0 ) {
top = IPAddress.NetworkToHostOrder( reader.ReadInt32() );
left = IPAddress.NetworkToHostOrder( reader.ReadInt32() );
bottom = IPAddress.NetworkToHostOrder( reader.ReadInt32() );
right = IPAddress.NetworkToHostOrder( reader.ReadInt32() );
maskbounds = Rectangle.FromLTRB( left, top, right, bottom );
hasmask = true;
// layer mask data
datasize = IPAddress.NetworkToHostOrder( reader.ReadInt32() );
}
// Range data
datasize = IPAddress.NetworkToHostOrder( reader.ReadInt32() );
if ( datasize > 0 ) {
reader.ReadBytes( datasize ); // throw away
}
name = Utils.ReadPascalString( reader, 4 );
// Read rest
System.Collections.ArrayList list = new System.Collections.ArrayList();
while ( (int)reader.BaseStream.Position < extradatasize ) {
LayerAdjustment adj = LayerAdjustment.Construct( reader );
if ( adj == null ) break;
list.Add( adj );
}
if ( list.Count > 0 ) {
adjustments = new LayerAdjustment[list.Count];
list.CopyTo( adjustments, 0 );
}
else
adjustments = new LayerAdjustment[0];
if ( channels.Mask != null ) channels.Mask.Size = maskbounds.Size;
if ( channels.Alpha != null ) channels.Alpha.Size = bounds.Size;
if ( channels.Red != null ) {
// Let's assume that a valid Red channel also means valid Green and Blue channels
channels.Red.Size = bounds.Size;
channels.Green.Size = bounds.Size;
channels.Blue.Size = bounds.Size;
}
}
