X-Git-Url: https://git.mdrn.pl/librarian.git/blobdiff_plain/1e0f8d82649a23f695333d5ef4588e8b60afbe99..6cf1239c51e07bd17a4fd45269f583d0fc3f92c8:/librarian/cover.py diff --git a/librarian/cover.py b/librarian/cover.py index 20cca66..ddc85ca 100644 --- a/librarian/cover.py +++ b/librarian/cover.py @@ -7,31 +7,102 @@ import Image, ImageFont, ImageDraw, ImageFilter from librarian import get_resource -def cover(author, title, - width, height, background_color, background_img, - author_top, author_margin_left, author_margin_right, author_lineskip, author_color, author_font, author_shadow, - title_top, title_margin_left, title_margin_right, title_lineskip, title_color, title_font, title_shadow, - logo_width, logo_bottom - ): - def draw_centered_text(text, img, font, margin_left, width, pos_y, lineskip, color, shadow_color): +class Cover(object): + width = 600 + height = 800 + background_color = '#fff' + background_img = None + + author_align = 'c' + author_top = 100 + author_margin_left = 20 + author_margin_right = 20 + author_lineskip = 40 + author_color = '#000' + author_shadow = None + author_font = None + author_wrap = True + + title_align = 'c' + title_top = 100 + title_margin_left = 20 + title_margin_right = 20 + title_lineskip = 54 + title_color = '#000' + title_shadow = None + title_font = None + title_wrap = True + + logo_bottom = None + logo_width = None + + format = 'JPEG' + + + exts = { + 'JPEG': 'jpg', + 'PNG': 'png', + } + + mime_types = { + 'JPEG': 'image/jpeg', + 'PNG': 'image/png', + } + + @staticmethod + def person_shortener(text): + yield text + chunks = text.split() + n_chunks = len(chunks) + # make initials from given names, starting from last + for i in range(n_chunks - 2, -1, -1): + chunks[i] = chunks[i][0] + '.' + yield " ".join(chunks) + # remove given names initials, starting from last + while len(chunks) > 2: + del chunks[1] + yield " ".join(chunks) + + @staticmethod + def title_shortener(text): + yield text + chunks = text.split() + n_chunks = len(chunks) + # remove words, starting from last one + while len(chunks) > 1: + del chunks[-1] + yield " ".join(chunks) + u'…' + + @staticmethod + def draw_text(text, img, font, align, shortener, margin_left, width, pos_y, lineskip, color, shadow_color): if shadow_color: shadow_img = Image.new('RGBA', img.size) shadow_draw = ImageDraw.Draw(shadow_img) text_img = Image.new('RGBA', img.size) text_draw = ImageDraw.Draw(text_img) while text: - line = text - while text_draw.textsize(line, font=font)[0] > width: - try: - line, ext = line.rsplit(' ', 1) - except: - break - pos_x = margin_left + (width - text_draw.textsize(line, font=font)[0]) / 2 + if shortener: + for line in shortener(text): + if text_draw.textsize(line, font=font)[0] <= width: + break + text = '' + else: + line = text + while text_draw.textsize(line, font=font)[0] > width: + try: + line, ext = line.rsplit(' ', 1) + except: + break + text = text[len(line)+1:] + pos_x = margin_left + if align == 'c': + pos_x += (width - text_draw.textsize(line, font=font)[0]) / 2 + elif align == 'r': + pos_x += (width - text_draw.textsize(line, font=font)[0]) if shadow_color: shadow_draw.text((pos_x + 3, pos_y + 3), line, font=font, fill=shadow_color) text_draw.text((pos_x, pos_y), line, font=font, fill=color) pos_y += lineskip - text = text[len(line)+1:] if shadow_color: shadow_img = shadow_img.filter(ImageFilter.BLUR) img.paste(shadow_img, None, shadow_img) @@ -39,42 +110,158 @@ def cover(author, title, return pos_y - img = Image.new('RGB', (width, height), background_color) + def __init__(self, author='', title=''): + self.author = author + self.title = title + + def pretty_author(self): + return self.author + + def pretty_title(self): + return self.title + + def image(self): + img = Image.new('RGB', (self.width, self.height), self.background_color) + + if self.background_img: + background = Image.open(self.background_img) + try: + img.paste(background, None, background) + except ValueError, e: + img.paste(background) + del background + + # WL logo + if self.logo_width: + logo = Image.open(get_resource('res/wl-logo.png')) + logo = logo.resize((self.logo_width, logo.size[1] * self.logo_width / logo.size[0])) + img.paste(logo, ((self.width - self.logo_width) / 2, img.size[1] - logo.size[1] - self.logo_bottom)) + + author_font = self.author_font or ImageFont.truetype(get_resource('fonts/DejaVuSerif.ttf'), 30) + author_shortener = None if self.author_wrap else self.person_shortener + title_y = self.draw_text(self.pretty_author(), img, author_font, self.author_align, author_shortener, + self.author_margin_left, self.width - self.author_margin_left - self.author_margin_right, self.author_top, + self.author_lineskip, self.author_color, self.author_shadow) + self.title_top + title_shortener = None if self.title_wrap else self.title_shortener + title_font = self.title_font or ImageFont.truetype(get_resource('fonts/DejaVuSerif.ttf'), 40) + self.draw_text(self.pretty_title(), img, title_font, self.title_align, title_shortener, + self.title_margin_left, self.width - self.title_margin_left - self.title_margin_right, title_y, + self.title_lineskip, self.title_color, self.title_shadow) + + return img + + def mime_type(self): + return self.mime_types[self.format] + + def ext(self): + return self.exts[self.format] + + def save(self, *args, **kwargs): + return self.image().save(format=self.format, *args, **kwargs) + + + +class VirtualoCover(Cover): + width = 600 + height = 730 + author_top = 73 + title_top = 73 + logo_bottom = 25 + logo_width = 250 + + +class PrestigioCover(Cover): + width = 580 + height = 783 + background_img = get_resource('res/cover-prestigio.png') + + author_top = 446 + author_margin_left = 118 + author_margin_right = 62 + author_lineskip = 60 + author_color = '#fff' + author_shadow = '#000' + author_font = ImageFont.truetype(get_resource('fonts/JunicodeWL-Italic.ttf'), 50) + + title_top = 0 + title_margin_left = 118 + title_margin_right = 62 + title_lineskip = 60 + title_color = '#fff' + title_shadow = '#000' + title_font = ImageFont.truetype(get_resource('fonts/JunicodeWL-Italic.ttf'), 50) + + def pretty_title(self): + return u"„%s”" % self.title + + +class BookotekaCover(Cover): + width = 2140 + height = 2733 + background_img = get_resource('res/cover-bookoteka.png') + + author_top = 480 + author_margin_left = 307 + author_margin_right = 233 + author_lineskip = 156 + author_color = '#d9d919' + author_font = ImageFont.truetype(get_resource('fonts/JunicodeWL-Regular.ttf'), 130) + + title_top = 400 + title_margin_left = 307 + title_margin_right = 233 + title_lineskip = 168 + title_color = '#d9d919' + title_font = ImageFont.truetype(get_resource('fonts/JunicodeWL-Regular.ttf'), 140) + + format = 'PNG' + + +class GandalfCover(Cover): + width = 600 + height = 730 + background_img = get_resource('res/cover-gandalf.png') + author_font = ImageFont.truetype(get_resource('fonts/JunicodeWL-Regular.ttf'), 30) + title_font = ImageFont.truetype(get_resource('fonts/JunicodeWL-Regular.ttf'), 40) + logo_bottom = 25 + logo_width = 250 + format = 'PNG' - if background_img: - background = Image.open(background_img) - img.paste(background, None, background) - del background - # WL logo - if logo_width: - logo = Image.open(get_resource('res/wl-logo.png')) - logo = logo.resize((logo_width, logo.size[1] * logo_width / logo.size[0])) - img.paste(logo, ((width - logo_width) / 2, img.size[1] - logo.size[1] - logo_bottom)) +class ArtaTechCover(Cover): + width = 600 + height = 800 + background_img = get_resource('res/cover-arta-tech.jpg') + author_top = 132 + author_margin_left = 235 + author_margin_right = 23 + author_align = 'r' + author_font = ImageFont.truetype(get_resource('fonts/DroidSans.ttf'), 32) + author_color = '#555555' + author_wrap = False + title_top = 17 + title_margin_right = 21 + title_margin_left = 60 + title_align = 'r' + title_font = ImageFont.truetype(get_resource('fonts/EBGaramond-Regular.ttf'), 42) + title_color = '#222222' + title_wrap = False + format = 'PNG' - title_y = draw_centered_text(author, img, author_font, - author_margin_left, width - author_margin_left - author_margin_right, author_top, - author_lineskip, author_color, author_shadow) + title_top - draw_centered_text(title, img, title_font, - title_margin_left, width - title_margin_left - title_margin_right, title_y, - title_lineskip, title_color, title_shadow) + def pretty_author(self): + return self.author.upper() - return img +def ImageCover(img): + """ a class factory for simple image covers """ + img = Image.open(img) -def virtualo_cover(author, title): - return cover(author, title, - 600, 730, '#fff', None, - 73, 20, 20, 40, '#000', ImageFont.truetype(get_resource('fonts/DejaVuSerif.ttf'), 30), None, - 73, 20, 20, 54, '#000', ImageFont.truetype(get_resource('fonts/DejaVuSerif.ttf'), 40), None, - 300, 0 - ) + class ImgCover(Cover): + def image(self): + return img -def asbis_cover(author, title): - return cover(author, u"„%s”" % title, - 580, 783, '#fff', get_resource('res/cover-prestigio.png'), - 446, 118, 62, 60, '#fff', ImageFont.truetype(get_resource('fonts/JunicodeWL-Italic.ttf'), 50), '#000', - 0, 118, 62, 60, '#fff', ImageFont.truetype(get_resource('fonts/JunicodeWL-Italic.ttf'), 50), '#000', - None, None - ) + @property + def format(self): + return self.image().format + return ImgCover