88 lines
2.7 KiB
C#
88 lines
2.7 KiB
C#
|
/////////////////////////////////////////////////////////////////////////////////
|
||
|
|
//
|
||
|
|
// Photoshop PSD FileType Plugin for Paint.NET
|
||
|
|
// http://psdplugin.codeplex.com/
|
||
|
|
//
|
||
|
|
// This software is provided under the MIT License:
|
||
|
|
// Copyright (c) 2006-2007 Frank Blumenberg
|
||
|
|
// Copyright (c) 2010-2016 Tao Yue
|
||
|
|
//
|
||
|
|
// See LICENSE.txt for complete licensing and attribution information.
|
||
|
|
//
|
||
|
|
/////////////////////////////////////////////////////////////////////////////////
|
||
|
|
|
||
|
|
using System;
|
||
|
|
using System.Collections.Generic;
|
||
|
|
using System.Linq;
|
||
|
|
using System.Text;
|
||
|
|
|
||
|
|
namespace PhotoshopFile
|
||
|
|
{
|
||
|
|
/// <summary>
|
||
|
|
/// Layers that are stored as Additional Info, rather than in the main
|
||
|
|
/// Layers section of the PSD file.
|
||
|
|
/// </summary>
|
||
|
|
/// <remarks>
|
||
|
|
/// Photoshop stores layers in the Additional Info section for 16-bit and
|
||
|
|
/// 32-bit depth images. The Layers section in the PSD file is left empty.
|
||
|
|
///
|
||
|
|
/// This appears to be for backward-compatibility purposes, but it is not
|
||
|
|
/// required. Photoshop will successfully load a high-bitdepth image that
|
||
|
|
/// puts the layers in the Layers section.
|
||
|
|
/// </remarks>
|
||
|
|
internal class InfoLayers : LayerInfo
|
||
|
|
{
|
||
|
|
public override string Signature
|
||
|
|
{
|
||
|
|
get { return "8BIM"; }
|
||
|
|
}
|
||
|
|
|
||
|
|
private string key;
|
||
|
|
public override string Key
|
||
|
|
{
|
||
|
|
get { return key; }
|
||
|
|
}
|
||
|
|
|
||
|
|
public PsdFile PsdFile { get; set; }
|
||
|
|
|
||
|
|
public InfoLayers(PsdFile psdFile, string key)
|
||
|
|
{
|
||
|
|
PsdFile = psdFile;
|
||
|
|
|
||
|
|
switch (key)
|
||
|
|
{
|
||
|
|
// The key does not have to match the bit depth, but it does have to
|
||
|
|
// be one of the known values.
|
||
|
|
case "Layr":
|
||
|
|
case "Lr16":
|
||
|
|
case "Lr32":
|
||
|
|
this.key = key;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
throw new PsdInvalidException(
|
||
|
|
"InfoLayers key must be Layr, Lr16, or Lr32.");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
public InfoLayers(PsdBinaryReader reader, PsdFile psdFile,
|
||
|
|
string key, long dataLength)
|
||
|
|
: this(psdFile, key)
|
||
|
|
{
|
||
|
|
if (psdFile.Layers.Count > 0)
|
||
|
|
{
|
||
|
|
throw new PsdInvalidException(
|
||
|
|
"Cannot have both regular layers and Additional Info layers");
|
||
|
|
}
|
||
|
|
|
||
|
|
var endPosition = reader.BaseStream.Position + dataLength;
|
||
|
|
psdFile.LoadLayers(reader, false);
|
||
|
|
|
||
|
|
if (reader.BaseStream.Position != endPosition)
|
||
|
|
{
|
||
|
|
throw new PsdInvalidException(
|
||
|
|
"Incorrect length for InfoLayers.");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|