treecutter/image.py

   1 #!/usr/bin/python
   2
   3 from PIL import Image as PIL_Image
   4 from libxmp import consts
   5 from libxmp import XMPFiles
   6 from treecutter.tools import sizeof_fmt
   7
   8
   9 class Image():
  10     """Class representing an image"""
  11     def __init__(self,filename):
  12         self._filename = filename
  13         self._format = {}
  14
  15     def infostr(self):
  16         image = PIL_Image.open(self._filename)
  17         w,d = image.size
  18         image.close()
  19         byte = os.path.getsize(self._filename)
  20         return "[%dx%d (%s)]" % (w,d,sizeof_fmt(byte))
  21
  22     def resize(self,x,y):
  23         size = (x, y)
  24         outfile, ext = os.path.splitext(self._filename)
  25         outfile = "%s.%dx%d.%s" % (outfile, size[0], size[1], ext)
  26         if not os.path.exists(outfile):
  27             im = PIL_Image.open(infile)
  28             im.thumbnail(size, PIL_Image.ANTIALIAS)
  29             bg = PIL_Image.new('RGBA', size, (0, 0, 0, 0))
  30             bg.paste(im,((size[0]-im.size[0])/2, (size[1]-im.size[1])/2))
  31             im.save(outfile)
  32             self._format[size] = outfile
  33         return outfile
  34
  35     def set_generated(self):
  36         print self._filename
  37
  38     def generated(self):
  39         print self._filename
  40
  41     def thumbnail(self):
  42         return image.resize(50,50)
  43
  44     def slider(self):
  45         return image.resize(700,438)
  46
  47     def caption(self):
  48         xmpfile = XMPFiles(file_path=self._filename)
  49         xmp = xmpfile.get_xmp()
  50         cap = xmp.get_property(consts.XMP_NS_DC, 'description[1]' )
  51         xmpfile.close_file()
  52         return cap