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0001-misc-adapt-thumbnail-orientation-using-EXIF-metadata.patch

Frédéric Péters, 02 février 2019 20:24

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Subject: [PATCH] misc: adapt thumbnail orientation using EXIF metadata
 (#30235)


 wcs/qommon/misc.py | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
wcs/qommon/misc.py
60 60 
    HAS_GM = False
61 61 

  		




  62
  62
  
    

  		




  
  63
  
    
EXIF_ORIENTATION = 0x0112

  		




  
  64
  
    

  		




  63
  65
  
    
class ThumbnailError(Exception):

  		




  64
  66
  
    
    pass

  		




  65
  67
  
    

  		




  ......




  594
  596
  
    

  		




  595
  597
  
    
    try:

  		




  596
  598
  
    
        image = Image.open(fp)

  		




  
  599
  
    
        try:

  		




  
  600
  
    
            exif = image._getexif()

  		




  
  601
  
    
        except:

  		




  
  602
  
    
            exif = None

  		




  
  603
  
    

  		




  
  604
  
    
        if exif:

  		




  
  605
  
    
            # orientation code from sorl.thumbnail (engines/pil_engine.py)

  		




  
  606
  
    
            orientation = exif.get(EXIF_ORIENTATION)

  		




  
  607
  
    

  		




  
  608
  
    
            if orientation == 2:

  		




  
  609
  
    
                image = image.transpose(Image.FLIP_LEFT_RIGHT)

  		




  
  610
  
    
            elif orientation == 3:

  		




  
  611
  
    
                image = image.rotate(180)

  		




  
  612
  
    
            elif orientation == 4:

  		




  
  613
  
    
                image = image.transpose(Image.FLIP_TOP_BOTTOM)

  		




  
  614
  
    
            elif orientation == 5:

  		




  
  615
  
    
                image = image.rotate(-90, expand=1).transpose(Image.FLIP_LEFT_RIGHT)

  		




  
  616
  
    
            elif orientation == 6:

  		




  
  617
  
    
                image = image.rotate(-90, expand=1)

  		




  
  618
  
    
            elif orientation == 7:

  		




  
  619
  
    
                image = image.rotate(90, expand=1).transpose(Image.FLIP_LEFT_RIGHT)

  		




  
  620
  
    
            elif orientation == 8:

  		




  
  621
  
    
                image = image.rotate(90, expand=1)

  		




  
  622
  
    

  		




  597
  623
  
    
        image.thumbnail((500, 300))

  		




  598
  624
  
    
        image_thumb_fp = StringIO()

  		




  599
  625
  
    
        image.save(image_thumb_fp, "PNG")

  		




  600
  
  
    
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