X-Git-Url: https://git.mdrn.pl/librarian.git/blobdiff_plain/12266a4397d9e344b7f95a19edc4a8df7cd5f9f0..04007a695c00e4b9191dcd873b6a6d7b96939279:/librarian/cover.py diff --git a/librarian/cover.py b/librarian/cover.py index 9070344..8e61fe3 100644 --- a/librarian/cover.py +++ b/librarian/cover.py @@ -13,6 +13,7 @@ class Cover(object): background_color = '#fff' background_img = None + author_align = 'c' author_top = 100 author_margin_left = 20 author_margin_right = 20 @@ -20,7 +21,9 @@ class Cover(object): 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 @@ -28,6 +31,7 @@ class Cover(object): title_color = '#000' title_shadow = None title_font = None + title_wrap = True logo_bottom = None logo_width = None @@ -45,27 +49,60 @@ class Cover(object): '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_centered_text(text, img, font, margin_left, width, pos_y, lineskip, color, shadow_color): + 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) @@ -88,7 +125,10 @@ class Cover(object): if self.background_img: background = Image.open(self.background_img) - img.paste(background, None, background) + try: + img.paste(background, None, background) + except ValueError, e: + img.paste(background) del background # WL logo @@ -98,11 +138,13 @@ class Cover(object): 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) - title_y = self.draw_centered_text(self.pretty_author(), img, author_font, + 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_centered_text(self.pretty_title(), img, title_font, + 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) @@ -184,3 +226,42 @@ class GandalfCover(Cover): logo_bottom = 25 logo_width = 250 format = 'PNG' + + +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 = 'JPEG' + + def pretty_author(self): + return self.author.upper() + + +def ImageCover(img): + """ a class factory for simple image covers """ + img = Image.open(img) + + class ImgCover(Cover): + def image(self): + return img + + @property + def format(self): + return self.image().format + + return ImgCover