C# CUR类实现代码

using System;
using System.Collections.Generic;
using System.Collections;
using System.Text;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Runtime.InteropServices;
namespace Zgke.MyImage.ImageFile
{
/// <summary>
/// CUR文件操作类
/// zgke@sina.com
/// qq:116149
/// </summary>
public class ImageCur
{
private class CurHead
{
private byte[] m_Retain = new byte[2];
private byte[] m_Type = new byte[] { 0x02, 0x00 };
private byte[] m_ImageCount = new byte[2];
private byte m_ImageWidth;
private byte m_ImageHeight;
private byte m_ColorCount;
private byte[] m_NotUser = new byte[5];
private byte[] m_ImageLength = new byte[4];
private byte[] m_ImageRVA = new byte[4];
/// <summary>
/// 图形高
/// </summary>
public byte ImageHeight { get { return m_ImageHeight; } set { m_ImageHeight = value; } }
/// <summary>
/// 图象个数
/// </summary>
public ushort ImageCount { get { return BitConverter.ToUInt16(m_ImageCount, 0); } set { m_ImageCount = BitConverter.GetBytes(value); } }
/// <summary>
/// 图形宽
/// </summary>
public byte ImageWidth { get { return m_ImageWidth; } set { m_ImageWidth = value; } }
/// <summary>
/// 色彩数 （256以下色用）
/// </summary>
public byte ColorCount { get { return m_ColorCount; } set { m_ColorCount = value; } }
/// <summary>
/// 图象数据块的长度
/// </summary>
public uint ImageLength { get { return BitConverter.ToUInt32(m_ImageLength, 0); } set { m_ImageLength = BitConverter.GetBytes(value); } }
/// <summary>
/// 图象数据块相对于文件头部的偏移量
/// </summary>
public uint ImageRVA { get { return BitConverter.ToUInt32(m_ImageRVA, 0); } set { m_ImageRVA = BitConverter.GetBytes(value); } }
public CurHead()
{
}
public CurHead(byte[] p_Data)
{
ImageCount = BitConverter.ToUInt16(p_Data, 4);
ImageHeight = p_Data[7];
ImageWidth = p_Data[6];
ColorCount = p_Data[8];
ImageLength = BitConverter.ToUInt32(p_Data, 14);
ImageRVA = BitConverter.ToUInt32(p_Data, 18);
}
public byte[] GetByte()
{
byte[] _ReturnBytes = new byte[22];
_ReturnBytes[0] = m_Retain[0];
_ReturnBytes[1] = m_Retain[1];
_ReturnBytes[2] = m_Retain[0];
_ReturnBytes[3] = m_Retain[1];
_ReturnBytes[4] = m_ImageCount[0];
_ReturnBytes[5] = m_ImageCount[1];
_ReturnBytes[6] = m_ImageWidth;
_ReturnBytes[7] = m_ImageHeight;
_ReturnBytes[8] = m_ColorCount;
_ReturnBytes[14] = m_ImageLength[0];
_ReturnBytes[15] = m_ImageLength[1];
_ReturnBytes[16] = m_ImageLength[2];
_ReturnBytes[17] = m_ImageLength[3];
_ReturnBytes[18] = m_ImageRVA[0];
_ReturnBytes[19] = m_ImageRVA[1];
_ReturnBytes[20] = m_ImageRVA[2];
_ReturnBytes[21] = m_ImageRVA[3];
return _ReturnBytes;
}
public byte[] GetImageByte()
{
byte[] _ReturnBytes = new byte[16];
_ReturnBytes[0] = m_ImageWidth;
_ReturnBytes[1] = m_ImageHeight;
_ReturnBytes[2] = m_ColorCount;
_ReturnBytes[8] = m_ImageLength[0];
_ReturnBytes[9] = m_ImageLength[1];
_ReturnBytes[10] = m_ImageLength[2];
_ReturnBytes[11] = m_ImageLength[3];
_ReturnBytes[12] = m_ImageRVA[0];
_ReturnBytes[13] = m_ImageRVA[1];
_ReturnBytes[14] = m_ImageRVA[2];
_ReturnBytes[15] = m_ImageRVA[3];
return _ReturnBytes;
}
}
private CurHead m_CurHead;
private Bitmap m_CurImage;
private IList<Image> m_CurList =new List<Image>();
public ImageCur(string p_FileFullName)
{
byte[] _FileBytes = File.ReadAllBytes(p_FileFullName);
ImageCurBytes(_FileBytes);
}
public ImageCur(byte[] p_FileBytes)
{
ImageCurBytes(p_FileBytes);
}
private void ImageCurBytes(byte[] p_Bytes)
{
m_CurHead = new CurHead(p_Bytes);
for (int i = 0; i != m_CurHead.ImageCount; i++)
{
m_CurHead.ImageWidth = (byte)BitConverter.ToInt16(p_Bytes, (int)m_CurHead.ImageRVA + 4);
m_CurHead.ImageHeight = (byte)(BitConverter.ToInt16(p_Bytes, (int)m_CurHead.ImageRVA + 8) / 2);
short _Piex = BitConverter.ToInt16(p_Bytes, (int)m_CurHead.ImageRVA + 14);
LoadImgae(_Piex, p_Bytes, (int)m_CurHead.ImageRVA + 40);
m_CurList.Add((Image)m_CurImage);
byte[] _Value = new byte[4];
_Value[3] = p_Bytes[((i + 1) * 16) + 18 + 3];
_Value[2] = p_Bytes[((i + 1) * 16) + 18 + 2];
_Value[1] = p_Bytes[((i + 1) * 16) + 18 + 1];
_Value[0] = p_Bytes[((i + 1) * 16) + 18];
m_CurHead.ImageRVA = BitConverter.ToUInt32(_Value, 0);
}
}
public ImageCur()
{
}
#region Read
private void Load32(byte[] p_FileBytes, byte[] p_NewData, int p_ReadIndex, int p_Width, int p_Height, int p_MashIndex, BitmapData p_NewBitmapData)
{
int _WriteIndex = 0;
for (int i = p_NewBitmapData.Height - 1; i != -1; i--)
{
_WriteIndex = i * p_NewBitmapData.Stride;
for (int z = 0; z != p_NewBitmapData.Width; z++)
{
p_NewData[_WriteIndex + (z * 4)] = p_FileBytes[p_ReadIndex];
p_NewData[_WriteIndex + (z * 4) + 1] = p_FileBytes[p_ReadIndex + 1];
p_NewData[_WriteIndex + (z * 4) + 2] = p_FileBytes[p_ReadIndex + 2];
p_NewData[_WriteIndex + (z * 4) + 3] = p_FileBytes[p_ReadIndex + 3];
p_ReadIndex += 4;
}
}
}
private void Load24(byte[] p_FileBytes, byte[] p_NewData, int p_ReadIndex, int p_Width, int p_Height, int p_MashIndex, BitmapData p_NewBitmapData)
{
int _WriteIndex = 0;
int _MashStride = p_Width / 8;
if (p_Width % 8 != 0) _MashStride++;
if (_MashStride % 4 != 0) _MashStride += _MashStride % 4;
byte[] _MashBytes = new byte[_MashStride * p_Height];
Array.Copy(p_FileBytes, p_MashIndex, _MashBytes, 0, _MashBytes.Length);
for (int i = 0; i != _MashBytes.Length; i++)
{
_MashBytes[i] = ConvertByte.OperateData.ReverseByte(_MashBytes[i]);
}
BitArray _MashArray = new BitArray(_MashBytes);
for (int i = p_NewBitmapData.Height - 1; i != -1; i--)
{
p_MashIndex = (p_Height - 1 - i) * (_MashStride * 8);
_WriteIndex = i * p_NewBitmapData.Stride;
for (int z = 0; z != p_NewBitmapData.Width; z++)
{
p_NewData[_WriteIndex + (z * 4)] = p_FileBytes[p_ReadIndex];
p_NewData[_WriteIndex + (z * 4) + 1] = p_FileBytes[p_ReadIndex + 1];
p_NewData[_WriteIndex + (z * 4) + 2] = p_FileBytes[p_ReadIndex + 2];
p_NewData[_WriteIndex + (z * 4) + 3] = 0xFF;
if (_MashArray[p_MashIndex])p_NewData[_WriteIndex + (z * 4) + 3] = 0x00; //
p_ReadIndex += 3;
p_MashIndex++;
}
}
}
private void Load8(byte[] p_FileBytes, byte[] p_NewData, int p_ReadIndex, int p_Width, int p_Height, int p_MashIndex, BitmapData p_NewBitmapData)
{
int _WriteIndex = 0;
Hashtable _ColorHashTable = new Hashtable();
for (int i = 0; i != 256; i++)
{
_ColorHashTable.Add(i.ToString(), Color.FromArgb(p_FileBytes[p_ReadIndex + 3], p_FileBytes[p_ReadIndex + 2], p_FileBytes[p_ReadIndex + 1], p_FileBytes[p_ReadIndex]));
p_ReadIndex += 4;
}
p_MashIndex = p_Width * p_Height + p_ReadIndex;
int _MashStride = p_Width / 8;
if (p_Width % 8 != 0) _MashStride++;
if (_MashStride % 4 !=0) _MashStride += _MashStride % 4;
byte[] _MashBytes = new byte[_MashStride * p_Height];
Array.Copy(p_FileBytes, p_MashIndex, _MashBytes, 0, _MashBytes.Length);
for (int i = 0; i != _MashBytes.Length; i++)
{
_MashBytes[i] = ConvertByte.OperateData.ReverseByte(_MashBytes[i]);
}
BitArray _MashArray = new BitArray(_MashBytes);
for (int i = p_NewBitmapData.Height - 1; i != -1; i--)
{
p_MashIndex = (p_Height - 1 - i) * (_MashStride * 8);
_WriteIndex = i * p_NewBitmapData.Stride;
for (int z = 0; z != p_NewBitmapData.Width; z++)
{
byte _Index = p_FileBytes[p_ReadIndex];
Color _SetColor = (Color)_ColorHashTable[_Index.ToString()];
p_NewData[_WriteIndex + (z * 4)] = (byte)_SetColor.B;
p_NewData[_WriteIndex + (z * 4) + 1] = (byte)_SetColor.G;
p_NewData[_WriteIndex + (z * 4) + 2] = (byte)_SetColor.R;
p_NewData[_WriteIndex + (z * 4) + 3] = 0xFF;
if (_MashArray[p_MashIndex])p_NewData[_WriteIndex + (z * 4) + 3] = 0x00; //
p_ReadIndex++;
p_MashIndex++;
}
}
}
private void Load4(byte[] p_FileBytes, byte[] p_NewData, int p_ReadIndex, int p_Width, int p_Height, int p_MashIndex, BitmapData p_NewBitmapData)
{
int _WriteIndex = 0;
Hashtable _ColorHashTable = new Hashtable();
for (int i = 0; i != 16; i++)
{
_ColorHashTable.Add(i.ToString(), Color.FromArgb(p_FileBytes[p_ReadIndex + 3], p_FileBytes[p_ReadIndex + 2], p_FileBytes[p_ReadIndex + 1], p_FileBytes[p_ReadIndex]));
p_ReadIndex += 4;
}
p_MashIndex = (p_Width * p_Height / 2) + p_ReadIndex;
int _MashStride = p_Width / 8;
if (p_Width % 8 != 0) _MashStride++;
if (_MashStride % 4 != 0) _MashStride += _MashStride % 4;
byte[] _MashBytes = new byte[_MashStride * p_Height];
Array.Copy(p_FileBytes, p_MashIndex, _MashBytes, 0, _MashBytes.Length);
for (int i = 0; i != _MashBytes.Length; i++)
{
_MashBytes[i] = ConvertByte.OperateData.ReverseByte(_MashBytes[i]);
}
BitArray _MashArray = new BitArray(_MashBytes);
bool _Lith = true;
for (int i = p_NewBitmapData.Height - 1; i != -1; i--)
{
p_MashIndex = (p_Height-1 - i) * (_MashStride * 8);
_WriteIndex = i * p_NewBitmapData.Stride;
for (int z = 0; z != p_NewBitmapData.Width; z++)
{
byte _Index = p_FileBytes[p_ReadIndex];
if (_Lith)
{
_Index = (byte)((_Index & 0xF0) >> 4);
_Lith = false;
}
else
{
_Index = (byte)(_Index & 0x0F); //后面的F
_Lith = true;
p_ReadIndex++;
}
Color _SetColor = (Color)_ColorHashTable[_Index.ToString()];
p_NewData[_WriteIndex + (z * 4)] = (byte)_SetColor.B;
p_NewData[_WriteIndex + (z * 4) + 1] = (byte)_SetColor.G;
p_NewData[_WriteIndex + (z * 4) + 2] = (byte)_SetColor.R;
p_NewData[_WriteIndex + (z * 4) + 3] = 0xFF;
if (_MashArray[p_MashIndex])p_NewData[_WriteIndex + (z * 4) + 3] = 0x00; //
p_MashIndex++;
}
}
}
private void Load1(byte[] p_FileBytes, byte[] p_NewData, int p_ReadIndex, int p_Width, int p_Height, int p_MashIndex, BitmapData p_NewBitmapData)
{
int _WriteIndex = 0;
Hashtable _ColorHashTable = new Hashtable();
for (int i = 0; i != 2; i++)
{
_ColorHashTable.Add(i.ToString(), Color.FromArgb(p_FileBytes[p_ReadIndex + 3], p_FileBytes[p_ReadIndex + 2], p_FileBytes[p_ReadIndex + 1], p_FileBytes[p_ReadIndex]));
p_ReadIndex += 4;
}
p_MashIndex = (p_Width * p_Height /8) + p_ReadIndex;
int _MashStride = p_Width / 8;
if (p_Width % 8 != 0) _MashStride++;
if (_MashStride % 4 != 0) _MashStride += _MashStride % 4;
byte[] _MashBytes = new byte[_MashStride * p_Height];
Array.Copy(p_FileBytes, p_MashIndex, _MashBytes, 0, _MashBytes.Length);
for (int i = 0; i != _MashBytes.Length; i++)
{
_MashBytes[i] = ConvertByte.OperateData.ReverseByte(_MashBytes[i]);
}
BitArray _MashArray = new BitArray(_MashBytes);
int _Lith = 7;
for (int i = p_NewBitmapData.Height - 1; i != -1; i--)
{
p_MashIndex = (p_Height - 1 - i) * (_MashStride * 8);
_WriteIndex = i * p_NewBitmapData.Stride;
for (int z = 0; z != p_NewBitmapData.Width; z++)
{
byte _Index = p_FileBytes[p_ReadIndex];
BitArray _ColorIndex = new BitArray(new byte[] { _Index });
if (_ColorIndex[_Lith])
{
_Index = 1;
}
else
{
_Index = 0;
}
if (_Lith == 0)
{
p_ReadIndex++;
_Lith = 7;
}
else
{
_Lith--;
}
Color _SetColor = (Color)_ColorHashTable[_Index.ToString()];
p_NewData[_WriteIndex + (z * 4)] = (byte)_SetColor.B;
p_NewData[_WriteIndex + (z * 4) + 1] = (byte)_SetColor.G;
p_NewData[_WriteIndex + (z * 4) + 2] = (byte)_SetColor.R;
p_NewData[_WriteIndex + (z * 4) + 3] = 0xFF;
if (_MashArray[p_MashIndex])p_NewData[_WriteIndex + (z * 4) + 3] = 0x00; //
p_MashIndex++;
}
}
}
#endregion
private void LoadImgae(short m_Piex, byte[] p_FileBytes,int _StarIndex)
{
int _Width = m_CurHead.ImageWidth;
int _Height = m_CurHead.ImageHeight;
m_CurImage = new Bitmap(_Width, _Height, PixelFormat.Format32bppArgb);
BitmapData _NewBitmapData = m_CurImage.LockBits(new Rectangle(0, 0, _Width, _Height), ImageLockMode.ReadWrite, PixelFormat.Format32bppArgb);
byte[] _NewData = new byte[_NewBitmapData.Stride * _NewBitmapData.Height];
int _ReadIndex = _StarIndex;
int _MashIndex = 0;
switch (m_Piex)
{
case 1:
_MashIndex = (_Width * _Height / 8) + _ReadIndex;
Load1(p_FileBytes, _NewData, _ReadIndex, _Width, _Height, _MashIndex, _NewBitmapData);
break;
case 4:
_MashIndex = (_Width * _Height / 2) + _ReadIndex;
Load4(p_FileBytes, _NewData, _ReadIndex, _Width, _Height, _MashIndex, _NewBitmapData);
break;
case 8:
_MashIndex = _Width * _Height + _ReadIndex;
Load8(p_FileBytes, _NewData, _ReadIndex, _Width, _Height, _MashIndex, _NewBitmapData);
break;
case 24:
_MashIndex = _Width * _Height * 3 + _ReadIndex;
Load24(p_FileBytes, _NewData, _ReadIndex, _Width, _Height, _MashIndex, _NewBitmapData);
break;
case 32:
_MashIndex = _Width * _Height * 4 + _ReadIndex;
Load32(p_FileBytes, _NewData, _ReadIndex, _Width, _Height, _MashIndex, _NewBitmapData);
break;
default:
throw new Exception("不支持的格式");
}
Marshal.Copy(_NewData, 0, _NewBitmapData.Scan0, _NewData.Length);
m_CurImage.UnlockBits(_NewBitmapData);
}
public void SaveImage(string p_FileName)
{
if (m_CurList.Count == 0) return;
FileStream _File = new FileStream(p_FileName, FileMode.Create, FileAccess.Write);
m_CurHead = new CurHead();
_File.Write(new byte[]{0x00,0x00,0x02,0x00},0,4);
_File.Write(BitConverter.GetBytes((ushort)m_CurList.Count),0,2);
List<byte[]> _ImageByteList = new List<byte[]>();
m_CurHead.ImageRVA = (uint)m_CurList.Count * 16+6;
for (int i = 0; i != m_CurList.Count; i++)
{
if (m_CurList[i].Width > 255 || m_CurList[i].Height > 255)
{
_File.Close();
throw new Exception("图形文件过大！");
}
byte[] _ImageSize = GetImageBytes(i);
m_CurHead.ImageHeight = (byte)CurImage[i].Height;
m_CurHead.ImageWidth = (byte)CurImage[i].Width;
m_CurHead.ImageRVA += m_CurHead.ImageLength;
m_CurHead.ImageLength = (uint)_ImageSize.Length;
_ImageByteList.Add(_ImageSize);
_File.Write(m_CurHead.GetImageByte(), 0, 16);
}
for (int i = 0; i != _ImageByteList.Count; i++)
{
byte[] _Height = BitConverter.GetBytes((uint)(m_CurList[i].Height * 2));
_ImageByteList[i][8] = _Height[0];
_ImageByteList[i][9] = _Height[1];
_ImageByteList[i][10] = _Height[2];
_ImageByteList[i][11] = _Height[3];
_File.Write(_ImageByteList[i], 0, _ImageByteList[i].Length);
}
_File.Close();
}
public MemoryStream SaveImage()
{
if (m_CurList.Count == 0) throw new Exception("无图形可保存");
MemoryStream _Memory = new MemoryStream();
m_CurHead = new CurHead();
_Memory.Write(new byte[] { 0x00, 0x00, 0x02, 0x00 }, 0, 4);
_Memory.Write(BitConverter.GetBytes((ushort)m_CurList.Count), 0, 2);
List<byte[]> _ImageByteList = new List<byte[]>();
m_CurHead.ImageRVA = (uint)m_CurList.Count * 16 + 6;
for (int i = 0; i != m_CurList.Count; i++)
{
if (m_CurList[i].Width > 255 || m_CurList[i].Height > 255)
{
_Memory.Close();
throw new Exception("图形文件过大！");
}
byte[] _ImageSize = GetImageBytes(i);
m_CurHead.ImageHeight = (byte)CurImage[i].Height;
m_CurHead.ImageWidth = (byte)CurImage[i].Width;
m_CurHead.ImageRVA += m_CurHead.ImageLength;
m_CurHead.ImageLength = (uint)_ImageSize.Length;
_ImageByteList.Add(_ImageSize);
_Memory.Write(m_CurHead.GetImageByte(), 0, 16);
}
for (int i = 0; i != _ImageByteList.Count; i++)
{
byte[] _Height = BitConverter.GetBytes((uint)(m_CurList[i].Height * 2));
_ImageByteList[i][8] = _Height[0];
_ImageByteList[i][9] = _Height[1];
_ImageByteList[i][10] = _Height[2];
_ImageByteList[i][11] = _Height[3];
_Memory.Write(_ImageByteList[i], 0, _ImageByteList[i].Length);
}
return _Memory;
}
/// <summary>
/// CUR图形
/// </summary>
public IList<Image> CurImage { get { return m_CurList; } set { m_CurList = value; } }
public byte[] GetImageBytes(int p_ImageIndex)
{
MemoryStream _Memory = new MemoryStream();
if (m_CurList[p_ImageIndex].PixelFormat != PixelFormat.Format32bppArgb)
{
Bitmap _Image = new Bitmap(m_CurList[p_ImageIndex].Width, m_CurList[p_ImageIndex].Height, PixelFormat.Format32bppArgb);
Graphics _Graphcis = Graphics.FromImage(_Image);
_Graphcis.Dispose();
_Image.Save(_Memory, ImageFormat.Bmp);
}
else
{
m_CurList[p_ImageIndex].Save(_Memory, ImageFormat.Bmp);
}
byte[] _Test = _Memory.ToArray();
byte[] _ImageBytes = new byte[_Memory.Length - 0x0E];
_Memory.Position = 0x0E;
_Memory.Read(_ImageBytes, 0, _ImageBytes.Length);
return _ImageBytes;
}
}
}

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