private static void CreateImageThumbnail(File file)
{
using Image image = Image.FromFile(file.GetAbsolutePath());
using Image thumb = image.GetThumbnailImage(240, (int)(240.0 / image.Width * image.Height), () => false, IntPtr.Zero);
string guid = Guid.NewGuid().ToString();
thumb.Save(GetThumbnailPath(file), encoder, encParams);
}
public static bool TryGenerateExplorerIcon(File file)
{
string path = file.GetAbsolutePath();
if (!F.Exists(path))
{
return(false);
}
try
{
string ext = P.GetExtension(path).Replace(".", string.Empty);
if (file.IsFolder)
{
//string guid = GetGuidFromString("folder").ToString();
////文件夹，统一图标
//if (!F.Exists(GetExplorerIconPath(guid)))
//{
// var iconPath = GetExplorerIconPath(guid);
// ExplorerIcon.GetBitmapFromFolderPath(path, ExplorerIcon.IconSizeEnum.ExtraLargeIcon).Save(iconPath, ImageFormat.Png);
//}
//file.IconGUID = guid;
}
else if (FileUtility.IsExecutable(path))
{
//程序文件，每个图标都不同
string guid = Guid.NewGuid().ToString();
var iconPath = GetExplorerIconPath(file);
ExplorerIcon.GetBitmapFromFilePath(path, ExplorerIcon.IconSizeEnum.ExtraLargeIcon)
.Save(iconPath, ImageFormat.Png);
}
else
{
var iconPath = GetExplorerIconPath(file);
//其他文件，同一个格式的用同一个图标
if (F.Exists(iconPath))
{
}
else
{
string tempPath = P.GetTempFileName();
ExplorerIcon.GetBitmapFromFilePath(path, ExplorerIcon.IconSizeEnum.ExtraLargeIcon).Save(tempPath, ImageFormat.Png);
try
{
F.Move(tempPath, iconPath);
}
catch { }
};
}
}
catch (Exception ex)
{
}
return(false);
}
private static async Task CreateWin10ThumbnailAsync(File file)
{
var sFile = await StorageFile.GetFileFromPathAsync(file.GetAbsolutePath());
using StorageItemThumbnail thumb = await sFile.GetThumbnailAsync(ThumbnailMode.SingleItem);
using var bitmap = Bitmap.FromStream(thumb.AsStream()) as Bitmap;
Color leftTopColor = bitmap.GetPixel(0, 0);
if (leftTopColor.A == byte.MaxValue)//非透明色
{
bitmap.Save(GetWin10IconPath(file), encoder, encParams);
}
else//有透明色
{
bitmap.Save(GetWin10IconPath(file), ImageFormat.Png);
}
}
public static bool TryGenerateWin10Icon(File file)
{
string path = file.GetAbsolutePath();
if (!F.Exists(path) && !D.Exists(path))
{
return(false);
}
try
{
CreateWin10ThumbnailAsync(file).Wait();
return(true);
}
catch (Exception ex)
{
return(false);
}
}
public static bool HasIconInCurrentSettings(this File file)
{
if (Configs.ThumbnailStrategy == ThumbnailStrategy.Win10Icon)
{
return(file.HasWin10Icon());
}
if (Configs.ThumbnailStrategy == ThumbnailStrategy.MediaThumbnailPrefer)
{
if (file.FileInfo.IsImage() || file.FileInfo.IsVideo())
{
return(file.HasThumbnail());
}
return(file.HasExplorerIcon());
}
if (Configs.ThumbnailStrategy == ThumbnailStrategy.WindowsExplorerIcon)
{
return(file.HasExplorerIcon());
}
return(true);
}
private static bool CreateVideoThumbnail(File file)
{
var thumbnail = GetThumbnailPath(file);
var cmd = " -itsoffset -1 -i " + '"' + file.GetAbsolutePath() + '"' + " -vcodec mjpeg -vframes 1 -an -f rawvideo -vf scale=480:-1 " + '"' + thumbnail + '"';
var startInfo = new ProcessStartInfo
{
WindowStyle = ProcessWindowStyle.Hidden,
FileName = P.GetFullPath(FFMpegPath),
Arguments = cmd,
UseShellExecute = false,
CreateNoWindow = true,
//RedirectStandardOutput = true,
//RedirectStandardError = true,
};
Process p = Process.Start(startInfo);
bool result = p.WaitForExit(20000);
if (!result)
{
p.Kill();
try
{
F.Delete(thumbnail);
}
catch
{
}
return(false);
}
//string output = p.StandardOutput.ReadToEnd();
//string error = p.StandardError.ReadToEnd();
if (!F.Exists(thumbnail))
{
return(false);
}
return(true);
}
public static bool TryGenerateThumbnail(File file)
{
if (file.IsFolder)
{
return(false);
}
string path = file.GetAbsolutePath();
if (!F.Exists(path))
{
return(false);
}
if (FileUtility.IsImage(path))
{
try
{
CreateImageThumbnail(file);
return(true);
}
catch (Exception ex)
{
return(false);
}
}
else if (FileUtility.IsVideo(path))
{
try
{
return(CreateVideoThumbnail(file));
}
catch (Exception ex)
{
return(false);
}
}
return(false);
}
public static bool HasExplorerIcon(this File file)
{
return(F.Exists(file.GetExplorerIconPath()));
}
public static bool HasWin10Icon(this File file)
{
return(F.Exists(file.GetWin10IconPath()));
}
public static bool HasThumbnail(this File file)
{
return(F.Exists(file.GetThumbnailPath()));
}
public static void TryGenerateAllFileIcons(File file)
{
TryGenerateExplorerIcon(file);
TryGenerateWin10Icon(file);
TryGenerateThumbnail(file);
}
public static string GetExplorerIconPath(this File file)
{
return(P.GetFullPath(P.Combine(ThumbnailFolderPath, "exp", file.FileInfo.Extension.Trim('.').ToLower() + ".png")));
}
public static string GetWin10IconPath(this File file)
{
return(P.GetFullPath(P.Combine(ThumbnailFolderPath, "win10", file.ID + ".jpg")));
}
public static string GetThumbnailPath(this File file)
{
return(P.GetFullPath(P.Combine(ThumbnailFolderPath, "media", file.ID + ".jpg")));
}