X-Git-Url: https://git.mdrn.pl/librarian.git/blobdiff_plain/f4fdb08e0b0ff0da9faed1ac5d89a1523cad7271..b63b804c605433dde83600f6e6906a19bc8141b0:/librarian/cover.py diff --git a/librarian/cover.py b/librarian/cover.py index 717d5f0..0f38ec3 100644 --- a/librarian/cover.py +++ b/librarian/cover.py @@ -3,9 +3,11 @@ # This file is part of Librarian, licensed under GNU Affero GPLv3 or later. # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information. # +from __future__ import unicode_literals + import re from PIL import Image, ImageFont, ImageDraw, ImageFilter -from StringIO import StringIO +from six import BytesIO from librarian import get_resource, OutputFile, URLOpener @@ -69,7 +71,7 @@ class TextBox(object): line_width = self.draw.textsize(line, font=font)[0] line = line.strip() + ' ' - pos_x = (self.max_width - line_width) / 2 + pos_x = (self.max_width - line_width) // 2 if shadow_color: self.shadow_draw.text( @@ -139,21 +141,21 @@ class Cover(object): } def __init__(self, book_info, format=None, width=None, height=None): - self.author = ", ".join(auth.readable() for auth in book_info.authors) + self.authors = [auth.readable() for auth in book_info.authors] self.title = book_info.title if format is not None: self.format = format if width and height: - self.height = height * self.width / width + self.height = int(round(height * self.width / width)) scale = max(float(width or 0) / self.width, float(height or 0) / self.height) if scale >= 1: self.scale = scale elif scale: self.scale_after = scale - def pretty_author(self): - """Allows for decorating author's name.""" - return self.author + def pretty_authors(self): + """Allows for decorating authors' names.""" + return [self.authors] def pretty_title(self): """Allows for decorating title.""" @@ -171,8 +173,8 @@ class Cover(object): # WL logo if metr.logo_width: logo = Image.open(get_resource('res/wl-logo.png')) - logo = logo.resize((metr.logo_width, logo.size[1] * metr.logo_width / logo.size[0])) - img.paste(logo, ((metr.width - metr.logo_width) / 2, img.size[1] - logo.size[1] - metr.logo_bottom)) + logo = logo.resize((metr.logo_width, int(round(logo.size[1] * metr.logo_width / logo.size[0])))) + img.paste(logo, ((metr.width - metr.logo_width) // 2, img.size[1] - logo.size[1] - metr.logo_bottom)) top = metr.author_top tbox = TextBox( @@ -182,7 +184,8 @@ class Cover(object): author_font = ImageFont.truetype( self.author_font_ttf, metr.author_font_size) - tbox.text(self.pretty_author(), self.author_color, author_font, metr.author_lineskip, self.author_shadow) + for pa in self.pretty_authors(): + tbox.text(pa, self.author_color, author_font, metr.author_lineskip, self.author_shadow) text_img = tbox.image() img.paste(text_img, (metr.author_margin_left, top), text_img) @@ -223,9 +226,9 @@ class Cover(object): return self.final_image().save(*args, **default_kwargs) def output_file(self, *args, **kwargs): - imgstr = StringIO() + imgstr = BytesIO() self.save(imgstr, *args, **kwargs) - return OutputFile.from_string(imgstr.getvalue()) + return OutputFile.from_bytes(imgstr.getvalue()) class WLCover(Cover): @@ -303,11 +306,11 @@ class WLCover(Cover): bg_src = None if bg_src is None: bg_src = URLOpener().open(url) - self.background_img = StringIO(bg_src.read()) + self.background_img = BytesIO(bg_src.read()) bg_src.close() - def pretty_author(self): - return self.author.upper() + def pretty_authors(self): + return [a.upper() for a in self.authors] def add_box(self, img): if self.box_position == 'none': @@ -319,7 +322,8 @@ class WLCover(Cover): box = TextBox(metr.title_box_width, metr.height, padding_y=metr.box_padding_y) author_font = ImageFont.truetype( self.author_font_ttf, metr.author_font_size) - box.text(self.pretty_author(), + for pa in self.pretty_authors(): + box.text(pa, font=author_font, line_height=metr.author_lineskip, color=self.author_color, @@ -347,9 +351,9 @@ class WLCover(Cover): elif self.box_position == 'bottom': box_top = metr.height - metr.box_bottom_margin - box_img.size[1] else: # Middle. - box_top = (metr.height - box_img.size[1]) / 2 + box_top = (metr.height - box_img.size[1]) // 2 - box_left = metr.bar_width + (metr.width - metr.bar_width - box_img.size[0]) / 2 + box_left = metr.bar_width + (metr.width - metr.bar_width - box_img.size[0]) // 2 # Draw the white box. ImageDraw.Draw(img).rectangle( @@ -389,17 +393,17 @@ class WLCover(Cover): if src.size[0] * trg_size[1] < src.size[1] * trg_size[0]: resized = ( trg_size[0], - src.size[1] * trg_size[0] / src.size[0] + int(round(src.size[1] * trg_size[0] / src.size[0])) ) - cut = (resized[1] - trg_size[1]) / 2 + cut = (resized[1] - trg_size[1]) // 2 src = src.resize(resized, Image.ANTIALIAS) src = src.crop((0, cut, src.size[0], src.size[1] - cut)) else: resized = ( - src.size[0] * trg_size[1] / src.size[1], + int(round(src.size[0] * trg_size[1] / src.size[1])), trg_size[1], ) - cut = (resized[0] - trg_size[0]) / 2 + cut = (resized[0] - trg_size[0]) // 2 src = src.resize(resized, Image.ANTIALIAS) src = src.crop((cut, 0, src.size[0] - cut, src.size[1])) @@ -430,11 +434,16 @@ class LogoWLCover(WLCover): 'res/fnp-logo-white.png', ] - def __init__(self, *args, **kwargs): - super(LogoWLCover, self).__init__(*args, **kwargs) + def __init__(self, book_info, *args, **kwargs): + super(LogoWLCover, self).__init__(book_info, *args, **kwargs) self.gradient_height += self.bleed self.gradient_logo_margin_right += self.bleed + self.additional_cover_logos = [ + BytesIO(URLOpener().open(cover_logo_url).read()) + for cover_logo_url in book_info.cover_logo_urls + ] + def image(self): img = super(LogoWLCover, self).image() metr = Metric(self, self.scale) @@ -448,15 +457,29 @@ class LogoWLCover(WLCover): img.paste(gradient, (metr.bar_width, metr.height - metr.gradient_height), mask=gradient_mask) cursor = metr.width - metr.gradient_logo_margin_right - logo_top = metr.height - metr.gradient_height / 2 - metr.gradient_logo_height / 2 - metr.bleed / 2 - for logo_path in self.gradient_logos[::-1]: - logo = Image.open(get_resource(logo_path)) + logo_top = int(metr.height - metr.gradient_height / 2 - metr.gradient_logo_height / 2 - metr.bleed / 2) + + logos = [get_resource(logo_path) for logo_path in self.gradient_logos[::-1]] + logos = logos + self.additional_cover_logos + logos = [Image.open(logo_bytes).convert('RGBA') for logo_bytes in logos] + + # See if logos fit into the gradient. If not, scale down accordingly. + space_for_logos = metr.width - metr.bar_width - 2 * metr.gradient_logo_margin_right + widths = [logo.size[0] * metr.gradient_logo_height / logo.size[1] for logo in logos] + taken_space = sum(widths) + (len(logos) - 1) * (metr.gradient_logo_spacing) + logo_scale = space_for_logos / taken_space if taken_space > space_for_logos else 1 + logo_top += int(metr.gradient_logo_height * (1 - logo_scale) / 2) + + for i, logo in enumerate(logos): logo = logo.resize( - (logo.size[0] * metr.gradient_logo_height / logo.size[1], metr.gradient_logo_height), + ( + int(round(widths[i] * logo_scale)), + int(round(metr.gradient_logo_height * logo_scale)) + ), Image.ANTIALIAS) cursor -= logo.size[0] img.paste(logo, (cursor, logo_top), mask=logo) - cursor -= metr.gradient_logo_spacing + cursor -= int(round(metr.gradient_logo_spacing * logo_scale)) return img @@ -554,12 +577,38 @@ class KMLUCover(LogoWLCover): ] +class MPWCover(LogoWLCover): + gradient_logo_height = 58 + gradient_logo_spacing = 25 + gradient_logos = [ + 'res/mpw-logo-white.png', + 'res/wl-logo-white.png', + 'res/fnp-logo-white.png', + ] + + +class AtriumCover(LogoWLCover): + gradient_logo_height = 58 + gradient_logo_spacing = 25 + gradient_logos = [ + 'res/atrium-logo.png', + 'res/wl-logo-white.png', + 'res/fnp-logo-white.png', + ] + + COVER_CLASSES = { 'default': LogoWLCover, 'kmlu': KMLUCover, + 'mpw': MPWCover, + 'atrium': AtriumCover, } def make_cover(book_info, *args, **kwargs): - cover_class = COVER_CLASSES[book_info.cover_class] + if 'cover_class' in kwargs: + cover_class_name = kwargs.pop('cover_class') + else: + cover_class_name = book_info.cover_class + cover_class = COVER_CLASSES[cover_class_name] return cover_class(book_info, *args, **kwargs)