/// <summary>
/// Creates new tree heirarchy underneath the specified path.
/// Leaf nodes are represented by <creg="Song"/> and sub-directories
/// by <see cref="Album"/>.
/// </summary>
/// <param name="depth">Number of levels down object resides from root</param>
/// <param name="path">Absolute path of the object. Must be a directory.</param>
/// <remarks>
/// Depth defaults to 0, meaning root. Each child's depth is incremented by 1
/// and the child's parent is set to the current object. The album object
/// assumed the path represents a directory, otherwise a <see cref="Song"/>
/// should be created.
///
/// Once individual files have been read in the metadata for the
/// folder is set since requesting Metadata.Artist pulls the artist
/// tag from the first file in the folder.
/// </remarks>
/// <exception cref="IOException">When path is not directory</exception>
public Release(string path, int depth=0)
{
// Initialize album parameters
Path = path;
Depth = depth;
Art = new Art();
TargetFormat = Encoding.MP3;
Checksum = new Md5();
children = new List<File>();
metadata = new MetadataCollection();
// Parse directories
foreach (var Item in System.IO.Directory.GetDirectories(Path))
{
Add(new Release(Item, Depth + 1));
}
// Parse individual files
foreach (var Item in System.IO.Directory.GetFiles(Path))
{
Add(new Song(Item, Depth + 1));
}
if (!Root)
{
// If no album metadata set, use folder name
Metadata.Release = Metadata.Release ?? Name;
}
}
public byte[] GetVerifyCode()
{
int codeW = 80;
int codeH = 30;
int fontSize = 16;
string chkCode = string.Empty;
//颜色列表，用于验证码、噪线、噪点
Color[] color = { Color.Black, Color.Red, Color.Blue, Color.Green, Color.Orange, Color.Brown, Color.Brown, Color.DarkBlue };
//字体列表，用于验证码
string[] font = { "Times New Roman" };
//验证码的字符集，去掉了一些容易混淆的字符
char[] character = { '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'd', 'e', 'f', 'h', 'k', 'm', 'n', 'r', 'x', 'y', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'J', 'K', 'L', 'M', 'N', 'P', 'R', 'S', 'T', 'W', 'X', 'Y' };
Random rnd = new Random();
//生成验证码字符串
for (int i = 0; i < 4; i++)
{
chkCode += character[rnd.Next(character.Length)];
}
//写入Session、验证码加密
WebHelper.WriteSession("nfine_session_verifycode", Md5.md5(chkCode.ToLower(), 16));
//创建画布
Bitmap bmp = new Bitmap(codeW, codeH);
Graphics g = Graphics.FromImage(bmp);
g.Clear(Color.White);
//画噪线
for (int i = 0; i < 3; i++)
{
int x1 = rnd.Next(codeW);
int y1 = rnd.Next(codeH);
int x2 = rnd.Next(codeW);
int y2 = rnd.Next(codeH);
Color clr = color[rnd.Next(color.Length)];
g.DrawLine(new Pen(clr), x1, y1, x2, y2);
}
//画验证码字符串
for (int i = 0; i < chkCode.Length; i++)
{
string fnt = font[rnd.Next(font.Length)];
Font ft = new Font(fnt, fontSize);
Color clr = color[rnd.Next(color.Length)];
g.DrawString(chkCode[i].ToString(), ft, new SolidBrush(clr), (float)i * 18, (float)0);
}
//将验证码图片写入内存流，并将其以 "image/Png" 格式输出
MemoryStream ms = new MemoryStream();
try
{
bmp.Save(ms, ImageFormat.Png);
return(ms.ToArray());
}
catch (Exception)
{
return(null);
}
finally
{
g.Dispose();
bmp.Dispose();
}
}
/// <summary>
/// Default ctor
/// </summary>
public Release()
{
Art = new Art();
TargetFormat = Encoding.MP3;
Checksum = new Md5();
children = new List<File>();
metadata = new MetadataCollection();
}