public static int GetImageIndex(string filePath, string id, ImageList lstImg)
{
string fileExtention = Path.GetExtension(filePath);
string keyword = fileExtention;
try
{
if (!lstImg.Images.Keys.Contains(fileExtention))
{
//图片文件，寻找图片缩略图
if (fileExtention.ToLower().EndsWith(".png") || fileExtention.ToLower().EndsWith(".bmp") || fileExtention.ToLower().EndsWith(".jpeg") || fileExtention.ToLower().EndsWith(".jpg"))
{
keyword = id;
Image targetImg = null;
string tempDir = Path.Combine(System.Environment.GetEnvironmentVariable("TEMP"), "64");
if (!Directory.Exists(tempDir))
{
Directory.CreateDirectory(tempDir);
}
string tempPath = Path.Combine(tempDir, id + ".jpeg");
Image sourceImg = Image.FromFile(filePath);
targetImg = GetReducedImage(sourceImg, 64, 64);
targetImg.Save(tempPath, ImageFormat.Jpeg);
lstImg.Images.Add(keyword, targetImg);
}
else
{
keyword = fileExtention;
lstImg.Images.Add(keyword, IconsExtention.IconFromExtension(fileExtention, IconsExtention.SystemIconSize.Large));
}
}
}
catch (Exception)
{
if (fileExtention.EndsWith(".exe"))
{
keyword = fileExtention;
lstImg.Images.Add(keyword, Resources.exe);
}
}
return(lstImg.Images.IndexOfKey(keyword));
}
public static int GetImageIndex(TDataInfoDTO dto, ImageList lstImg)
{
string fileExtention = Path.GetExtension(dto.DataName);
string keyword = fileExtention;
try
{
if (!lstImg.Images.Keys.Contains(fileExtention))
{
//图片文件，寻找图片缩略图
if (fileExtention.ToLower().EndsWith(".png") || fileExtention.ToLower().EndsWith(".bmp") || fileExtention.ToLower().EndsWith(".jpeg") || fileExtention.ToLower().EndsWith(".jpg"))
{
keyword = dto.MetaDataId;
Image targetImg = null;
string tempDir = Path.Combine(System.Environment.GetEnvironmentVariable("TEMP"), "64");
if (!Directory.Exists(tempDir))
{
Directory.CreateDirectory(tempDir);
}
string tempPath = Path.Combine(tempDir, dto.MetaDataId + ".jpeg");
if (!File.Exists(tempPath))
{
//下载缩略图
string temp = Path.Combine(System.Environment.GetEnvironmentVariable("TEMP"), dto.MetaDataId + fileExtention);
long total = 0;
byte[] buffer = null;
bool success = true;
while (success)
{
using (FileStream stream = new FileStream(temp, FileMode.Append))
{
success = _client.TDataInfoDownloadFile(out buffer, total, dto.MetaDataId);
if (success == false)
{
break;
}
total += buffer.Length;
stream.Write(buffer, 0, buffer.Length);
}
}
Image sourceImg = Image.FromFile(temp);
int width = sourceImg.Width * 64 / sourceImg.Height;
targetImg = GetReducedImage(sourceImg, width, 64);
targetImg.Save(tempPath, ImageFormat.Jpeg);
// File.Delete(temp);
}
else
{
targetImg = Image.FromFile(tempPath);
}
lstImg.Images.Add(keyword, targetImg);
}
else
{
keyword = fileExtention;
lstImg.Images.Add(keyword, IconsExtention.IconFromExtension(fileExtention, IconsExtention.SystemIconSize.Large));
}
}
}
catch (Exception)
{
if (fileExtention.EndsWith(".exe"))
{
keyword = fileExtention;
lstImg.Images.Add(keyword, Resources.exe);
}
}
return(lstImg.Images.IndexOfKey(keyword));
}