epub fix for multiple authors (#3655)

[librarian.git] / librarian / cover.py

diff --git a/librarian/cover.py b/librarian/cover.py
index 8b770ca..0b7a176 100644 (file)
--- a/librarian/cover.py
+++ b/librarian/cover.py
@@ -4,7 +4,7 @@
 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
 #
 import re
 # 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
 
 from StringIO import StringIO
 from librarian import get_resource, OutputFile, URLOpener
 


@@ -125,6 +125,7 @@ class Cover(object):
 
     format = 'JPEG'
     scale = 1
 
     format = 'JPEG'
     scale = 1

+    scale_after = 1

 
     exts = {
         'JPEG': 'jpg',
 
     exts = {
         'JPEG': 'jpg',


@@ -141,9 +142,13 @@ class Cover(object):
         self.title = book_info.title
         if format is not None:
             self.format = format
         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)
         scale = max(float(width or 0) / self.width, float(height or 0) / self.height)

-        if scale:
+        if scale >= 1:

             self.scale = scale
             self.scale = scale

+        elif scale:
+            self.scale_after = scale

 
     def pretty_author(self):
         """Allows for decorating author's name."""
 
     def pretty_author(self):
         """Allows for decorating author's name."""


@@ -176,8 +181,7 @@ class Cover(object):
             
         author_font = ImageFont.truetype(
             self.author_font_ttf, metr.author_font_size)
             
         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)
 
         text_img = tbox.image()
         img.paste(text_img, (metr.author_margin_left, top), text_img)
 


@@ -188,13 +192,21 @@ class Cover(object):
             )
         title_font = ImageFont.truetype(
             self.title_font_ttf, metr.title_font_size)
             )
         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)
 
         return img
 
         text_img = tbox.image()
         img.paste(text_img, (metr.title_margin_left, top), text_img)
 
         return img
 

+    def final_image(self):
+        img = self.image()
+        if self.scale_after != 1:
+            img = img.resize((
+                    int(round(img.size[0] * self.scale_after)),
+                    int(round(img.size[1] * self.scale_after))),
+                Image.ANTIALIAS)
+        return img
+

     def mime_type(self):
         return self.mime_types[self.format]
 
     def mime_type(self):
         return self.mime_types[self.format]
 


@@ -202,7 +214,12 @@ class Cover(object):
         return self.exts[self.format]
 
     def save(self, *args, **kwargs):
         return self.exts[self.format]
 
     def save(self, *args, **kwargs):

-        return self.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()
 
     def output_file(self, *args, **kwargs):
         imgstr = StringIO()


@@ -211,7 +228,7 @@ class Cover(object):
 
 
 class WLCover(Cover):
 
 
 class WLCover(Cover):

-    """Default Wolne Lektury cover generator."""
+    """Wolne Lektury cover without logos."""

     width = 600
     height = 833
     uses_dc_cover = True
     width = 600
     height = 833
     uses_dc_cover = True


@@ -236,9 +253,11 @@ class WLCover(Cover):
     logo_width = 140
 
     bar_width = 35
     logo_width = 140
 
     bar_width = 35

+    bar_color = '#000'
+    box_position = 'middle'

     background_color = '#444'
     author_color = '#444'
     background_color = '#444'
     author_color = '#444'

-    default_background = get_resource('res/cover.png')
+    background_img = get_resource('res/cover.png')

     format = 'JPEG'
 
     epoch_colors = {
     format = 'JPEG'
 
     epoch_colors = {


@@ -254,11 +273,25 @@ class WLCover(Cover):
         u'Współczesność': '#06393d',
     }
 
         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):

         super(WLCover, self).__init__(book_info, format=format, width=width, height=height)
         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)
+

         if book_info.cover_url:
             url = book_info.cover_url
             bg_src = None
         if book_info.cover_url:
             url = book_info.cover_url
             bg_src = None


@@ -266,22 +299,65 @@ class WLCover(Cover):
                 bg_src = URLOpener().open(url)
             self.background_img = StringIO(bg_src.read())
             bg_src.close()
                 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 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 image(self):
         metr = Metric(self, self.scale)
         img = Image.new('RGB', (metr.width, metr.height), self.background_color)
         draw = ImageDraw.Draw(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)
 
         if self.background_img:
             src = Image.open(self.background_img)


@@ -306,63 +382,57 @@ class WLCover(Cover):
             img.paste(src, (metr.bar_width, 0))
             del src
 
             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)
+        img = self.add_box(img)

 
 

-        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,
-                )
+        return img

 
 

-        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])

 
 

-        box_img = box.image()
+class LogoWLCover(WLCover):
+    gradient_height = 90
+    gradient_logo_height = 60
+    gradient_logo_margin_right = 30
+    gradient_logo_spacing = 40
+    gradient_color = '#000'
+    gradient_opacity = .6
+    gradient_logos = [
+        'res/wl-logo-white.png',
+        'res/fnp-logo-white.png',
+    ]

 
 

-        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
+    def image(self):
+        img = super(LogoWLCover, self).image()
+        metr = Metric(self, self.scale)
+        gradient = Image.new('RGBA', (metr.width - metr.bar_width, metr.gradient_height), self.gradient_color)
+        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)
+
+        cursor = metr.width - metr.gradient_logo_margin_right
+        logo_top = metr.height - metr.gradient_height / 2 - metr.gradient_logo_height / 2
+        for logo_path in self.gradient_logos[::-1]:
+            logo = Image.open(get_resource(logo_path))
+            logo = logo.resize(
+                (logo.size[0] * metr.gradient_logo_height / logo.size[1], metr.gradient_logo_height),
+                Image.ANTIALIAS)
+            cursor -= logo.size[0]
+            img.paste(logo, (cursor, logo_top), mask=logo)
+            cursor -= metr.gradient_logo_spacing

 
 

-        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)
+        return 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)

 
 

-        return img
+class EbookpointCover(LogoWLCover):
+    gradient_logo_height = 58
+    gradient_logo_spacing = 25
+    gradient_logos = [
+        'res/ebookpoint-logo-white.png',
+        'res/wl-logo-white.png',
+        'res/fnp-logo-white.png',
+    ]

 
 
 class VirtualoCover(Cover):
 
 
 class VirtualoCover(Cover):


@@ -436,3 +506,6 @@ class GandalfCover(Cover):
     logo_bottom = 25
     logo_width = 250
     format = 'PNG'
     logo_bottom = 25
     logo_width = 250
     format = 'PNG'

+
+
+DefaultEbookCover = LogoWLCover