X-Git-Url: https://git.mdrn.pl/librarian.git/blobdiff_plain/5c8dc23489cec14f405a7cf8aef9d68384762571..f981e2fe9c976709edb03f8617079319be6605e8:/librarian/cover.py diff --git a/librarian/cover.py b/librarian/cover.py index d1b2cc0..bec59f3 100644 --- a/librarian/cover.py +++ b/librarian/cover.py @@ -4,7 +4,7 @@ # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information. # import re -from PIL import Image, ImageFont, ImageDraw, ImageFilter, ImageEnhance +from PIL import Image, ImageFont, ImageDraw, ImageFilter from StringIO import StringIO from librarian import get_resource, OutputFile, URLOpener @@ -18,8 +18,9 @@ class Metric(object): def __getattr__(self, name): src = getattr(self._obj, name) if src and self._scale: - src = type(src)(self._scale * src) - return src + return type(src)(self._scale * src) + else: + return src class TextBox(object): @@ -142,6 +143,8 @@ class Cover(object): self.title = book_info.title if format is not None: self.format = format + if width and height: + self.height = height * self.width / width scale = max(float(width or 0) / self.width, float(height or 0) / self.height) if scale >= 1: self.scale = scale @@ -179,8 +182,7 @@ 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) + tbox.text(self.pretty_author(), 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) @@ -191,8 +193,7 @@ class Cover(object): ) title_font = ImageFont.truetype( self.title_font_ttf, metr.title_font_size) - tbox.text(self.pretty_title(), self.title_color, title_font, - metr.title_lineskip, self.title_shadow) + tbox.text(self.pretty_title(), self.title_color, title_font, metr.title_lineskip, self.title_shadow) text_img = tbox.image() img.paste(text_img, (metr.title_margin_left, top), text_img) @@ -214,7 +215,12 @@ class Cover(object): return self.exts[self.format] def save(self, *args, **kwargs): - return self.final_image().save(format=self.format, quality=95, *args, **kwargs) + default_kwargs = { + 'format': self.format, + 'quality': 95, + } + default_kwargs.update(kwargs) + return self.final_image().save(*args, **default_kwargs) def output_file(self, *args, **kwargs): imgstr = StringIO() @@ -234,7 +240,7 @@ class WLCover(Cover): title_font_size = 30 title_lineskip = 40 title_box_width = 350 - + box_top_margin = 100 box_bottom_margin = 100 box_padding_y = 20 @@ -248,9 +254,11 @@ class WLCover(Cover): logo_width = 140 bar_width = 35 + bar_color = '#000' + box_position = 'middle' background_color = '#444' author_color = '#444' - default_background = get_resource('res/cover.png') + background_img = get_resource('res/cover.png') format = 'JPEG' epoch_colors = { @@ -266,11 +274,30 @@ class WLCover(Cover): u'Współczesność': '#06393d', } - def __init__(self, book_info, format=None, width=None, height=None, with_logo=False): + kind_box_position = { + u'Liryka': 'top', + u'Epika': 'bottom', + } + + def __init__(self, book_info, format=None, width=None, height=None, bleed=0): super(WLCover, self).__init__(book_info, format=format, width=width, height=height) - self.kind = book_info.kind - self.epoch = book_info.epoch - self.with_logo = with_logo + # Set box position. + self.box_position = book_info.cover_box_position or \ + self.kind_box_position.get(book_info.kind, self.box_position) + # Set bar color. + if book_info.cover_bar_color == 'none': + self.bar_width = 0 + else: + self.bar_color = book_info.cover_bar_color or \ + self.epoch_colors.get(book_info.epoch, self.bar_color) + # Set title color. + self.title_color = self.epoch_colors.get(book_info.epoch, self.title_color) + + self.bleed = bleed + self.box_top_margin += bleed + self.box_bottom_margin += bleed + self.bar_width += bleed + if book_info.cover_url: url = book_info.cover_url bg_src = None @@ -278,22 +305,83 @@ class WLCover(Cover): bg_src = URLOpener().open(url) self.background_img = StringIO(bg_src.read()) bg_src.close() - else: - self.background_img = self.default_background def pretty_author(self): return self.author.upper() + def add_box(self, img): + if self.box_position == 'none': + return img + + metr = Metric(self, self.scale) + + # Write author name. + 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(), + font=author_font, + line_height=metr.author_lineskip, + color=self.author_color, + shadow_color=self.author_shadow) + + box.skip(metr.box_above_line) + box.draw.line((metr.box_line_left, box.height, metr.box_line_right, box.height), + fill=self.author_color, width=metr.box_line_width) + box.skip(metr.box_below_line) + + # Write title. + title_font = ImageFont.truetype( + self.title_font_ttf, metr.title_font_size) + box.text(self.pretty_title(), + line_height=metr.title_lineskip, + font=title_font, + color=self.title_color, + shadow_color=self.title_shadow) + + box_img = box.image() + + # Find box position. + if self.box_position == 'top': + box_top = metr.box_top_margin + 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_left = metr.bar_width + (metr.width - metr.bar_width - box_img.size[0]) / 2 + + # Draw the white box. + ImageDraw.Draw(img).rectangle( + (box_left, box_top, box_left + box_img.size[0], box_top + box_img.size[1]), fill='#fff') + # Paste the contents into the white box. + img.paste(box_img, (box_left, box_top), box_img) + return img + + def add_cut_lines(self, img): + line_ratio = 0.5 + if self.bleed == 0: + return img + metr = Metric(self, self.scale) + draw = ImageDraw.Draw(img) + for corner_x, corner_y in ((0, 0), (metr.width, 0), (0, metr.height), (metr.width, metr.height)): + dir_x = 1 if corner_x == 0 else -1 + dir_y = 1 if corner_y == 0 else -1 + for offset in (-1, 0, 1): + draw.line((corner_x, corner_y + dir_y * metr.bleed + offset, + corner_x + dir_x * metr.bleed * line_ratio, corner_y + dir_y * metr.bleed + offset), + fill='black' if offset == 0 else 'white', width=1) + draw.line((corner_x + dir_x * metr.bleed + offset, corner_y, + corner_x + dir_x * metr.bleed + offset, corner_y + dir_y * metr.bleed * line_ratio), + fill='black' if offset == 0 else 'white', width=1) + return img + def image(self): metr = Metric(self, self.scale) img = Image.new('RGB', (metr.width, metr.height), self.background_color) draw = ImageDraw.Draw(img) - if self.epoch in self.epoch_colors: - epoch_color = self.epoch_colors[self.epoch] - else: - epoch_color = '#000' - draw.rectangle((0, 0, metr.bar_width, metr.height), fill=epoch_color) + draw.rectangle((0, 0, metr.bar_width, metr.height), fill=self.bar_color) if self.background_img: src = Image.open(self.background_img) @@ -318,61 +406,9 @@ class WLCover(Cover): img.paste(src, (metr.bar_width, 0)) del src - 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(), - font=author_font, - line_height=metr.author_lineskip, - color=self.author_color, - shadow_color=self.author_shadow, - ) - - box.skip(metr.box_above_line) - box.draw.line((metr.box_line_left, box.height, metr.box_line_right, box.height), - fill=self.author_color, width=metr.box_line_width) - box.skip(metr.box_below_line) - - title_font = ImageFont.truetype( - self.title_font_ttf, metr.title_font_size) - box.text(self.pretty_title(), - line_height=metr.title_lineskip, - font=title_font, - color=epoch_color, - shadow_color=self.title_shadow, - ) - - if self.with_logo: - logo = Image.open(get_resource('res/wl-logo-mono.png')) - logo = logo.resize((metr.logo_width, logo.size[1] * metr.logo_width / logo.size[0]), Image.ANTIALIAS) - alpha = logo.split()[3] - alpha = ImageEnhance.Brightness(alpha).enhance(.75) - logo.putalpha(alpha) - box.skip(metr.logo_top + logo.size[1]) + img = self.add_box(img) - box_img = box.image() - - if self.kind == 'Liryka': - # top - box_top = metr.box_top_margin - elif self.kind == 'Epika': - # bottom - box_top = metr.height - metr.box_bottom_margin - box_img.size[1] - else: - # center - box_top = (metr.height - box_img.size[1]) / 2 - - box_left = metr.bar_width + (metr.width - metr.bar_width - - box_img.size[0]) / 2 - draw.rectangle((box_left, box_top, - box_left + box_img.size[0], box_top + box_img.size[1]), - fill='#fff') - img.paste(box_img, (box_left, box_top), box_img) - - if self.with_logo: - img.paste(logo, - (box_left + (box_img.size[0] - logo.size[0]) / 2, - box_top + box_img.size[1] - metr.box_padding_y - logo.size[1]), mask=logo) + img = self.add_cut_lines(img) return img @@ -389,6 +425,11 @@ class LogoWLCover(WLCover): 'res/fnp-logo-white.png', ] + def __init__(self, *args, **kwargs): + super(LogoWLCover, self).__init__(*args, **kwargs) + self.gradient_height += self.bleed + self.gradient_logo_margin_right += self.bleed + def image(self): img = super(LogoWLCover, self).image() metr = Metric(self, self.scale) @@ -396,12 +437,13 @@ class LogoWLCover(WLCover): gradient_mask = Image.new('L', (metr.width - metr.bar_width, metr.gradient_height)) draw = ImageDraw.Draw(gradient_mask) for line in range(0, metr.gradient_height): - draw.line((0, line, metr.width - metr.bar_width, line), fill=int(255 * self.gradient_opacity * line / metr.gradient_height)) - img.paste(gradient, - (metr.bar_width, metr.height - metr.gradient_height), mask=gradient_mask) + draw.line( + (0, line, metr.width - metr.bar_width, line), + fill=int(255 * self.gradient_opacity * line / metr.gradient_height)) + 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 + 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 = logo.resize( @@ -498,4 +540,3 @@ class GandalfCover(Cover): DefaultEbookCover = LogoWLCover -