public void AssertCompressAndUnCompressFileStream(string saveFileName,
Dictionary <string, FileStream> fileStreams,
byte compressLevelFlag)
{
var compressStream = new FileStream(saveFileName + ".multifile.huf", FileMode.Create);
compressStream.Seek(0, SeekOrigin.Begin);
var cw = new CompressStreamWriter(compressStream);
cw.Write(fileStreams, compressLevelFlag, (int)EncryptType.None);
compressStream.Seek(0, SeekOrigin.Begin);
// 解压缩
using (var cr = new CompressStreamReader(compressStream))
{
cr.Read(null, s => File.Create("recover." + s));
}
foreach (var s in fileStreams.Keys)
{
using (var fs = File.OpenRead("recover." + s))
{
using (var br = new BinaryReader(fs))
{
fileStreams[s].Seek(0, SeekOrigin.Begin);
using (var br2 = new BinaryReader(fileStreams[s]))
{
// TODO 长度有可能会溢出，不过这是测试，一般不用管
Assert.AreEqual(BitConverter.ToString(br2.ReadBytes((int)br2.BaseStream.Length)),
BitConverter.ToString(br.ReadBytes((int)br.BaseStream.Length)));
}
}
}
}
}
private void UnCompress_Button_Click(object sender, RoutedEventArgs e)
{
var encoding = new UTF8Encoding();
try
{
using (var unCompressStream = new MemoryStream())
{
using (var compressStream = new MemoryStream(Convert.FromBase64String(TextboxCompressed.Text)))
{
using (var cr = new CompressStreamReader(compressStream))
{
var readBytesCount = cr.Read(() => unCompressStream);
unCompressStream.Seek(0, SeekOrigin.Begin);
// 修复 Windows 7 下输出不可打印字符的问题
var bytes = new byte[readBytesCount];
Array.Copy(unCompressStream.GetBuffer(), bytes, readBytesCount);
TextboxUncompressed.Text = encoding.GetString(bytes);
}
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "哎呀，发生了一个错误~", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
public void AssertCompressAndUnCompressBytes(string saveFileName, byte[] sourceData, byte compressLevelFlag)
{
var output = new MemoryStream();
var input = new MemoryStream(sourceData);
var compressStream = new FileStream(saveFileName + ".test.huf", FileMode.Create);
compressStream.Seek(0, SeekOrigin.Begin);
var cw = new CompressStreamWriter(compressStream);
cw.Write(input, compressLevelFlag, (int)EncryptType.None);
compressStream.Seek(0, SeekOrigin.Begin);
var cr = new CompressStreamReader(compressStream);
cr.Read(() => output);
output.Seek(0, SeekOrigin.Begin);
var br = new BinaryReader(output);
Assert.AreEqual(BitConverter.ToString(sourceData), BitConverter.ToString(br.ReadBytes(sourceData.Length)));
}
private void UnCompress_Files_Button_Click(object sender, RoutedEventArgs e)
{
try
{
// 选择要压缩的文件
var fileOpenDialog = new OpenFileDialog
{
Multiselect = false,
Filter = "HUF压缩文件|*.huf",
Title = "选择你要解压缩的文件",
CheckFileExists = true
};
fileOpenDialog.FileOk += (o2, e2) =>
{
var folderBrowserDialog = new FolderBrowserDialog
{
Description = "选择你要解压到的文件夹"
};
if (folderBrowserDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
using (var cr = new CompressStreamReader(((OpenFileDialog)o2).OpenFile()))
{
cr.Read(null, s => File.Create(Path.Combine(folderBrowserDialog.SelectedPath, s)));
}
MessageBox.Show("解压成功！", "信息", MessageBoxButton.OK, MessageBoxImage.Information);
}
};
MessageBox.Show("解压过大的文件可能会导致程序暂时失去响应，建议使用不大于 50 kb 的 HUF 压缩文件解压缩测试", "警告", MessageBoxButton.OK, MessageBoxImage.Warning);
fileOpenDialog.ShowDialog();
}
catch (Exception exception)
{
MessageBox.Show(exception.Message, "哎呀，发生了一个错误~", MessageBoxButton.OK, MessageBoxImage.Error);
}
}