/// <summary>
/// 填充指针列表
/// </summary>
/// <param name="filepath"></param>
private void PakImzPngListIndex()
{
ListIndexXY = ReadDir();
if (ListIndexXY != null)
{
imzNum = ListIndexXY.Count;
for (int i = 0; i < imzNum; i++)
{
imzPngIndexopr tmppngindex = new imzPngIndexopr();
if (File.Exists(filepath + string.Format(@"/{0}.png", i)))
{
tmppngindex.X = ListIndexXY[i].x;
tmppngindex.Y = ListIndexXY[i].y;
tmppngindex.imzPngIndexStart.Add(new imzPngIndexopr.imzPngIndexStartOpr(0, 0));
imzPngListIndex.Add(tmppngindex);
}
else
{
int tmpFileIndex = 0;
while (File.Exists(filepath + string.Format(@"/{0}_{1}.png", i, tmpFileIndex)))
{
tmppngindex.imzPngIndexStart.Add(new imzPngIndexopr.imzPngIndexStartOpr(0, 0));
tmpFileIndex++;
}
tmppngindex.X = ListIndexXY[i].x;
tmppngindex.Y = ListIndexXY[i].y;
imzPngListIndex.Add(tmppngindex);
}
}
}
}
private void PakImzPngList(string filename)
{
PakImzPngListIndex();
PakImzListIndex();
if (ListIndexXY != null)
{
imzNum = ListIndexXY.Count;
FileStream fs = new FileStream(filename, FileMode.Create);
BinaryWriter br = new BinaryWriter(fs);
br.Write(imzNum);
for (int i = 0; i < imzListIndex.Count; i++)
{
br.Write(imzListIndex[i]);
}
fs.Seek(imzPngListIndexSize, SeekOrigin.Current);
for (int i = 0; i < imzNum; i++)
{
byte[] tmpbyte;
string tmpfilename;
switch (imzPngListIndex[i].imzPngIndexStart.Count)
{
case 0:
imzPngListIndex[i] = new imzPngIndexopr();
break;
case 1:
tmpfilename = string.Format(filepath + string.Format(@"/{0}.png", i));
imzPngListIndex[i].imzPngIndexStart = new List <imzPngIndexopr.imzPngIndexStartOpr>();
if (!File.Exists(tmpfilename))
{
tmpfilename = filepath + string.Format(@"/{0}_{1}.png", i, 0);
}
using (FileStream pngstream = new FileStream(tmpfilename, FileMode.Open))
{
tmpbyte = new byte[pngstream.Length];
pngstream.Read(tmpbyte, 0, (int)pngstream.Length);
}
imzPngListIndex[i].imzPngIndexStart.Add(new imzPngIndexopr.imzPngIndexStartOpr((int)fs.Position, tmpbyte.Length));
fs.Write(tmpbyte, 0, tmpbyte.Length);
GC.Collect();
break;
default:
int tmpcount = imzPngListIndex[i].imzPngIndexStart.Count;
imzPngListIndex[i].imzPngIndexStart = new List <imzPngIndexopr.imzPngIndexStartOpr>();
for (int tmpFileIndex = 0; tmpFileIndex < tmpcount; tmpFileIndex++)
{
using (FileStream pngstream = new FileStream(filepath + string.Format(@"/{0}_{1}.png", i, tmpFileIndex),
FileMode.Open))
{
tmpbyte = new byte[pngstream.Length];
pngstream.Read(tmpbyte, 0, (int)pngstream.Length);
}
imzPngListIndex[i].imzPngIndexStart.Add(new imzPngIndexopr.imzPngIndexStartOpr((int)fs.Position, tmpbyte.Length));
fs.Write(tmpbyte, 0, tmpbyte.Length);
GC.Collect();
}
break;
}
}
fs.Seek(imzListIndexSize, SeekOrigin.Begin);
for (int i = 0; i < imzPngListIndex.Count; i++)
{
br.Write(imzPngListIndex[i].X);
br.Write(imzPngListIndex[i].Y);
br.Write(imzPngListIndex[i].num);
for (int j = 0; j < imzPngListIndex[i].imzPngIndexStart.Count; j++)
{
br.Write(imzPngListIndex[i].imzPngIndexStart[j].StartIndex);
br.Write(imzPngListIndex[i].imzPngIndexStart[j].LengthIndex);
}
}
br.Close();
fs.Close();
}
}