compile once for now

[librarian.git] / librarian / picture.py

diff --git a/librarian/picture.py b/librarian/picture.py
index ee3c61d..1aa1d07 100644 (file)
--- a/librarian/picture.py
+++ b/librarian/picture.py
@@ -1,23 +1,25 @@
+# -*- coding: utf-8 -*-
+from operator import and_

 
 

-from dcparser import (as_person, as_date, Field, WorkInfo, DCNS)
+from dcparser import Field, WorkInfo, DCNS

 from librarian import (RDFNS, ValidationError, NoDublinCore, ParseError, WLURI)
 from xml.parsers.expat import ExpatError
 from os import path
 from StringIO import StringIO
 from lxml import etree
 from librarian import (RDFNS, ValidationError, NoDublinCore, ParseError, WLURI)
 from xml.parsers.expat import ExpatError
 from os import path
 from StringIO import StringIO
 from lxml import etree

-from lxml.etree import (XMLSyntaxError, XSLTApplyError)
+from lxml.etree import (XMLSyntaxError, XSLTApplyError, Element)

 import re
 
 
 class WLPictureURI(WLURI):
 import re
 
 
 class WLPictureURI(WLURI):

-    _re_wl_uri = re.compile('http://wolnelektury.pl/katalog/obraz/'
-            '(?P<slug>[-a-z0-9]+)/?$')
+    _re_wl_uri = re.compile('http://wolnelektury.pl/katalog/obraz/(?P<slug>[-a-z0-9]+)/?$')

 
     @classmethod
     def from_slug(cls, slug):
         uri = 'http://wolnelektury.pl/katalog/obraz/%s/' % slug
         return cls(uri)
 
 
     @classmethod
     def from_slug(cls, slug):
         uri = 'http://wolnelektury.pl/katalog/obraz/%s/' % slug
         return cls(uri)
 

+

 def as_wlpictureuri_strict(text):
     return WLPictureURI.strict(text)
 
 def as_wlpictureuri_strict(text):
     return WLPictureURI.strict(text)
 


@@ -30,21 +32,22 @@ class PictureInfo(WorkInfo):
         Field(DCNS('language'), 'language', required=False),
         Field(DCNS('subject.period'), 'epochs', salias='epoch', multiple=True),
         Field(DCNS('subject.type'), 'kinds', salias='kind', multiple=True),
         Field(DCNS('language'), 'language', required=False),
         Field(DCNS('subject.period'), 'epochs', salias='epoch', multiple=True),
         Field(DCNS('subject.type'), 'kinds', salias='kind', multiple=True),

+        Field(DCNS('subject.genre'), 'genres', salias='genre', multiple=True, required=False),
+        Field(DCNS('subject.style'), 'styles', salias='style', multiple=True, required=False),

 
         Field(DCNS('format.dimensions'), 'dimensions', required=False),
         Field(DCNS('format.checksum.sha1'), 'sha1', required=True),
         Field(DCNS('description.medium'), 'medium', required=False),
         Field(DCNS('description.dimensions'), 'original_dimensions', required=False),
         Field(DCNS('format'), 'mime_type', required=False),
 
         Field(DCNS('format.dimensions'), 'dimensions', required=False),
         Field(DCNS('format.checksum.sha1'), 'sha1', required=True),
         Field(DCNS('description.medium'), 'medium', required=False),
         Field(DCNS('description.dimensions'), 'original_dimensions', required=False),
         Field(DCNS('format'), 'mime_type', required=False),

-        Field(DCNS('identifier.url'), 'url', WLPictureURI,
-            strict=as_wlpictureuri_strict),
-        )
+        Field(DCNS('identifier.url'), 'url', WLPictureURI, strict=as_wlpictureuri_strict)
+    )

 
 
 class ImageStore(object):
     EXT = ['gif', 'jpeg', 'png', 'swf', 'psd', 'bmp'
 
 
 class ImageStore(object):
     EXT = ['gif', 'jpeg', 'png', 'swf', 'psd', 'bmp'

-            'tiff', 'tiff', 'jpc', 'jp2', 'jpf', 'jb2', 'swc',
-            'aiff', 'wbmp', 'xbm']
+           'tiff', 'tiff', 'jpc', 'jp2', 'jpf', 'jb2', 'swc',
+           'aiff', 'wbmp', 'xbm']

     MIME = ['image/gif', 'image/jpeg', 'image/png',
             'application/x-shockwave-flash', 'image/psd', 'image/bmp',
             'image/tiff', 'image/tiff', 'application/octet-stream',
     MIME = ['image/gif', 'image/jpeg', 'image/png',
             'application/x-shockwave-flash', 'image/psd', 'image/bmp',
             'image/tiff', 'image/tiff', 'application/octet-stream',


@@ -52,8 +55,8 @@ class ImageStore(object):
             'application/x-shockwave-flash', 'image/iff', 'image/vnd.wap.wbmp', 'image/xbm']
 
     def __init__(self, dir_):
             'application/x-shockwave-flash', 'image/iff', 'image/vnd.wap.wbmp', 'image/xbm']
 
     def __init__(self, dir_):

+        super(ImageStore, self).__init__()

         self.dir = dir_
         self.dir = dir_

-        return super(ImageStore, self).__init__()

 
     def path(self, slug, mime_type):
         """
 
     def path(self, slug, mime_type):
         """


@@ -93,6 +96,7 @@ class WLPicture(object):
             self.picture_info = PictureInfo.from_element(self.rdf_elem)
         else:
             self.picture_info = None
             self.picture_info = PictureInfo.from_element(self.rdf_elem)
         else:
             self.picture_info = None

+        self.frame = None

 
     @classmethod
     def from_string(cls, xml, *args, **kwargs):
 
     @classmethod
     def from_string(cls, xml, *args, **kwargs):


@@ -117,14 +121,16 @@ class WLPicture(object):
         data = data.replace(u'\ufeff', '')
 
         # assume images are in the same directory
         data = data.replace(u'\ufeff', '')
 
         # assume images are in the same directory

-        if image_store is None and xmlfile.name is not None:
+        if image_store is None and getattr(xmlfile, 'name', None):

             image_store = ImageStore(path.dirname(xmlfile.name))
 
         try:
             parser = etree.XMLParser(remove_blank_text=False)
             tree = etree.parse(StringIO(data.encode('utf-8')), parser)
 
             image_store = ImageStore(path.dirname(xmlfile.name))
 
         try:
             parser = etree.XMLParser(remove_blank_text=False)
             tree = etree.parse(StringIO(data.encode('utf-8')), parser)
 

-            return cls(tree, parse_dublincore=parse_dublincore, image_store=image_store)
+            me = cls(tree, parse_dublincore=parse_dublincore, image_store=image_store)
+            me.load_frame_info()
+            return me

         except (ExpatError, XMLSyntaxError, XSLTApplyError), e:
             raise ParseError(e)
 
         except (ExpatError, XMLSyntaxError, XSLTApplyError), e:
             raise ParseError(e)
 


@@ -142,32 +148,64 @@ class WLPicture(object):
     def image_path(self):
         if self.image_store is None:
             raise ValueError("No image store associated with whis WLPicture.")
     def image_path(self):
         if self.image_store is None:
             raise ValueError("No image store associated with whis WLPicture.")

+

         return self.image_store.path(self.slug, self.mime_type)
 
     def image_file(self, *args, **kwargs):
         return open(self.image_path, *args, **kwargs)
 
         return self.image_store.path(self.slug, self.mime_type)
 
     def image_file(self, *args, **kwargs):
         return open(self.image_path, *args, **kwargs)
 

+    def get_sem_coords(self, sem):
+        area = sem.find("div[@type='rect']")
+        if area is None:
+            area = sem.find("div[@type='whole']")
+            return [[0, 0], [-1, -1]]
+
+        def has_all_props(node, props):
+            return reduce(and_, map(lambda prop: prop in node.attrib, props))
+
+        if not has_all_props(area, ['x1', 'x2', 'y1', 'y2']):
+            return None
+
+        def n(prop): return int(area.get(prop))
+        return [[n('x1'), n('y1')], [n('x2'), n('y2')]]
+

     def partiter(self):
         """
         Iterates the parts of this picture and returns them and their metadata
         """
     def partiter(self):
         """
         Iterates the parts of this picture and returns them and their metadata
         """

-        for part in self.edoc.iter("div"):
-            pd = {}
-            pd['type'] = part.get('type')
-            if pd['type'] == 'area':
-                pd['coords'] = ((int(part.get('x1')), int(part.get('y1'))),
-                                (int(part.get('x2')), int(part.get('y2'))))
-
-            pd['themes'] = []
-            pd['object'] = None
-            parent = part
-            while True:
-                parent = parent.getparent()
-                if parent is None:
-                    break
-                if parent.tag == 'sem':
-                    if parent.get('type') == 'theme':
-                        pd['themes'] += map(unicode.strip, unicode(parent.get('theme')).split(','))
-                    elif parent.get('type') == 'object' and pd['object'] is None:
-                        pd['object'] = parent.get('object')
+        # omg no support for //sem[(@type='theme') or (@type='object')] ?
+        for part in list(self.edoc.iterfind("//sem[@type='theme']")) +\
+                list(self.edoc.iterfind("//sem[@type='object']")):
+            pd = {'type': part.get('type')}
+
+            coords = self.get_sem_coords(part)
+            if coords is None:
+                continue
+            pd['coords'] = coords
+
+            def want_unicode(x):
+                if not isinstance(x, unicode):
+                    return x.decode('utf-8')
+                else:
+                    return x
+            pd['object'] = part.attrib['type'] == 'object' and want_unicode(part.attrib.get('object', u'')) or None
+            pd['themes'] = part.attrib['type'] == 'theme' and [part.attrib.get('theme', u'')] or []

             yield pd
             yield pd

+
+    def load_frame_info(self):
+        k = self.edoc.find("//sem[@object='kadr']")
+        
+        if k is not None:
+            clip = self.get_sem_coords(k)
+            self.frame = clip
+            frm = Element("sem", {"type": "frame"})
+            frm.append(k.iter("div").next())
+            self.edoc.getroot().append(frm)
+            k.getparent().remove(k)
+        else:
+            frm = self.edoc.find("//sem[@type='frame']")
+            if frm:
+                self.frame = self.get_sem_coords(frm)
+            else:
+                self.frame = None
+        return self