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=[], clear_page=True): 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) if clear_page: self.clear_page(page) page.render(context) fd = StringIO.StringIO() surface.write_to_png(fd) fd.seek(0) yield fd def clear_page(self, page): for field_mapping in page.get_form_field_mapping(): field = field_mapping.field field_type = field.get_field_type().value_nick if field_type == 'text': field.text_set_text('') elif field_type == 'button': field.button_set_state(0) 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 field_type = data.get_field_type() if field_type.value_nick == 'text': value = data.text_get_text() elif field_type.value_nick == 'button': value = data.button_get_state() yield { 'name': data.get_name(), 'value': value, 'type': field_type.value_nick, '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