public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
var num = value as int?;
if (num == null)
{
return(null);
}
return(array.Value.FromIndexOrDefault(RateConvertingHelper.ToRating(num.Value)));
}
public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
var num = value as int?;
if (num == null)
{
var dnum = value as double?;
if (num == null)
{
return(null);
}
num = (int)dnum.Value;
}
return(RateConvertingHelper.Reverse((int)num.Value));
}
/// <summary>
/// 画像ファイルの情報を取得
/// </summary>
/// <param name="fullPath"></param>
/// <param name="level"></param>
/// <returns></returns>
public ImageFileInformation GetImage(string fullPath, PropertiesLevel level)
{
ImageFileInformation image = null;
var hasDecoration = true;
try
{
var name = System.IO.Path.GetFileName(fullPath);
var isUnknownType = false;
var width = 0;
var height = 0;
var length = 0L;
//画像ファイルのヘッダからサイズを抽出
if (level >= PropertiesLevel.Size)
{
var graphicInfo = new GraphicInformation(fullPath);
width = graphicInfo.GraphicSize.Width;
height = graphicInfo.GraphicSize.Height;
length = graphicInfo.FileSize;
isUnknownType = graphicInfo.Type == GraphicFileType.Unknown;
//タグ・評価を付加できないファイルの場合は情報読み取りをスキップ
if (graphicInfo.Type != GraphicFileType.Jpeg &&
graphicInfo.Type != GraphicFileType.Tiff &&
graphicInfo.Type != GraphicFileType.Psd &&
graphicInfo.Type != GraphicFileType.Unknown)
{
hasDecoration = false;
}
}
var creationTime = defaultDateTime;
var lastWriteTime = defaultDateTime;
//日付情報
if (level >= PropertiesLevel.Basic)
{
try
{
var file = new System.IO.FileInfo(fullPath);
creationTime = ImageFileUtility.ConvertDateTime(file.CreationTime);
lastWriteTime = ImageFileUtility.ConvertDateTime(file.LastWriteTime);
}
catch
{
//No operation
}
}
image = new ImageFileInformation()
{
DateCreated = creationTime,
DateModified = lastWriteTime,
Name = name,
Path = fullPath,
Height = height,
Width = width,
Size = length,
Rating = 0,
Keywords = null,
IsNotFound = isUnknownType,
};
}
catch
{
return(null);
}
if (image == null)
{
return(null);
}
var rating = 0;
HashSet <string> tags = null;
//画像の評価・キーワード(時間かかる)
if (level >= PropertiesLevel.Shell && hasDecoration)
{
try
{
var fileAccesser = this.GetFile(fullPath, image.Name);
var kw = fileAccesser.GetDetailsOf(18);
if (kw != null)
{
tags = new HashSet <string>(kw
.Split(';')
.Select(x => x.Trim())
.Where(x => x != null && x.Length > 0)
.Distinct());
}
rating = 0;
var rateText = fileAccesser.GetDetailsOf(19);
var rateArray = rateText?
.Select(x => x - '0')
.Where(x => x > 0 && x <= 5)
.ToArray();
if (rateArray != null && rateArray.Length == 1)
{
rating = RateConvertingHelper.Reverse(rateArray[0]);
}
}
catch
{
return(null);
}
}
image.Rating = rating;
image.Keywords = tags;
return(image);
}