v7.90.0143 - 2009-04-23 12:50

• + Scripting got a new command (I needed it for my holiday fotos).
    Name:   rotate
    Action: Rotate JPG images. Rotation is lossless for typical
            digital camera images.
    Syntax: rotate [mode=90|180|270|h|v], [jpgfile_src],
                   [jpgfile_trg], [only_if_lossless=01]
      mode        = rotation in degrees (clockwise), or
                    horizontal/vertical flip orientation;
                    defaults to 90
      jpgfile_src = JPG file to rotate
                    defaults to current file if empty
                    relative current path if path missing
      jpgfile_trg = target file name
                    defaults to jpgfile_src if empty
                    relative current path if path missing
      only_if_lossless = 0: [default] rotate always
                         1: error if rotation cannot be done lossless
    Remarks:
    - ONLY if the width and height of the image are both multiples of
      16, then indeed the rotation is lossless! Luckily, digital
      camera image dimensions are usually multiples of 16. MS has
      buried some deeper info on this here:
        http://msdn.microsoft.com/en-us/library/ms533845.aspx
      If the image dimensions are not multiples of 16 then colors and
      sharpness will slightly fade if you do many consecutive
      rotations on the same image.
    - And yes, the function will ONLY work on JPG images.
    - EXIF data are preserved.
    Examples:
      ::rotate;     //rotate current image by 90 degrees (clockwise)
      ::rotate 180; //rotate current image by 180 degrees (clockwise)
      //rotate "E:\my.jpg" by 90, but only if it can be done lossless
      ::rotate , "E:\my.jpg", , 1;
      //flip current image horiz., save to "flipped.jpg" in cur path:
      ::rotate h, , "flipped.jpg";
      //save vertically flipped "D:\pic.jpg" to "E:\pic-v.jpg":
      ::rotate v, "D:\pic.jpg", "E:\pic-v.jpg";
    Example for POM:
        |"Rotate 90° clockwise" jpg>::rotate