/// <summary>
/// Generates a preview image and populates a new
/// <see cref="PreviewFile"/> object.
/// </summary>
/// <param name="img"></param>
/// <param name="p"></param>
/// <param name="fmt"></param>
/// <param name="mime"></param>
/// <param name="ici"></param>
/// <param name="eparams"></param>
/// <returns></returns>
private PreviewFile lowGenImg(ref Bitmap img,
Preview p,
ImageFormat fmt,
string mime,
ImageCodecInfo ici,
EncoderParameters eparams)
{
if (p.Name != "square") {
int[] c = Gfx.GetConstraints(MediaFile.Width, MediaFile.Height,
p.Width, p.Height);
using (Bitmap n = Gfx.ScaleImage(img, c[0], c[1])) {
if (!orgIsScaled) {
img = (Bitmap)n.Clone();
orgIsScaled = true;
}
using (MemoryStream s = new MemoryStream())
{
if (ici != null)
n.Save(s, ici, eparams);
else
n.Save(s, fmt);
PreviewFile pf = new PreviewFile();
pf.Width = n.Width;
pf.Height = n.Height;
pf.Size = s.Length;
pf.Mimetype = mime;
pf.Name = p.Name;
pf.Data = s.ToArray();
s.Close();
return pf;
}
}
}
else {
int[] c = Gfx.GetConstraintsSq(MediaFile.Width, MediaFile.Height,
p.Width, p.Height);
using (Bitmap n = Gfx.ScaleImageSq(img, Math.Min(c[0], c[1]))) {
if (!orgIsScaled) {
img = (Bitmap)n.Clone();
orgIsScaled = true;
}
using (MemoryStream s = new MemoryStream()) {
if (ici != null)
n.Save(s, ici, eparams);
else
n.Save(s, fmt);
PreviewFile pf = new PreviewFile();
pf.Width = n.Width;
pf.Height = n.Height;
pf.Size = s.Length;
pf.Mimetype = mime;
pf.Name = p.Name;
pf.Data = s.ToArray();
s.Close();
return pf;
}
}
}
}
public static PreviewFile FromSql(MySqlDataReader rd)
{
var pf = new PreviewFile();
pf.SetFromSql(rd);
return pf;
}