Added field extraction and model creation

controller.py

@@ -0,0 +1,57 @@
+import poppler
+
+import pdfformfiller.models
+import pdb
+
+class PopplerController(object):
+    def __init__(self, pdf=""):
+        self.doc = poppler.document_new_from_file('file:///home/mark/Bedraga.pdf', password=None)
+
+    def load_poppler_doc(self, filename):
+        from django.conf import settings
+
+        pdf_path = os.path.abspath(os.path.join(settings.STATIC_FORMS_ROOT, filename))
+        if os.path.isfile(pdf_path):
+            return poppler.document_new_from_file('file://' + pdf_path, password=None)
+
+
+    def generate_page_images(self, pages=[]):
+        import cairo
+        import StringIO
+
+        page = self.doc.get_page(pages[0] if pages else 0)
+        width, height = page.get_size()
+        surface = cairo.ImageSurface(cairo.FORMAT_RGB24, int(width*2), int(height*2))
+        context = cairo.Context(surface)
+        context.scale(2, 2)
+
+        for page_num in pages or xrange(self.doc.get_n_pages()):
+            page = self.doc.get_page(page_num)
+            page.render(context)
+            fd = StringIO.StringIO()
+            surface.write_to_png(fd)
+            fd.seek(0)
+            yield fd
+
+
+    def get_page_fields(self, page_num):
+        page = self.doc.get_page(page_num)
+        for field in page.get_form_field_mapping():
+            area = field.area
+            data = field.field
+
+            yield {
+                'name': data.get_name(),
+                'value': data.text_get_text(),
+                'area': {
+                    'pos_x': area.x1,
+                    'pos_y': area.y1,
+                    'width': area.x2 - area.x1,
+                    'height': area.y2 - area.y1,
+                }
+            }
+
+class PDFFormFillerPostSave(PopplerController):
+    def __init__(self, document):
+        pass
+