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[epub, mobi] book-text id – alignment with a rest of html output files
[librarian.git] / librarian / cover.py
diff --git a/librarian/cover.py b/librarian/cover.py
index 9fb01b7..21eedc3 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
-import Image, ImageFont, ImageDraw, ImageFilter
+from PIL import Image, ImageFont, ImageDraw, ImageFilter, ImageEnhance
 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',
@@ -142,8 +143,10 @@ class Cover(object):
         if format is not None:
             self.format = format
         scale = max(float(width or 0) / self.width, float(height or 0) / self.height)
         if format is not None:
             self.format = format
         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."""
@@ -195,6 +198,15 @@ class Cover(object):
 
         return 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
@@ -231,11 +248,16 @@ class WLCover(Cover):
     box_line_left = 75
     box_line_right = 275
     box_line_width = 2
     box_line_left = 75
     box_line_right = 275
     box_line_width = 2
-    
+
+    logo_top = 15
+    logo_width = 140
+
     bar_width = 35
     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 = {
@@ -251,10 +273,25 @@ class WLCover(Cover):
         u'Współczesność': '#06393d',
     }
 
         u'Współczesność': '#06393d',
     }
 
+    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)
     def __init__(self, book_info, format=None, width=None, height=None):
         super(WLCover, self).__init__(book_info, format=format, width=width, height=height)
-        self.kind = book_info.kind
-        self.epoch = book_info.epoch
+        # 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
@@ -262,46 +299,17 @@ 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 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)
+    def add_box(self, img):
+        if self.box_position == 'none':
+            return img
 
 
-        if self.background_img:
-            src = Image.open(self.background_img)
-            trg_size = (metr.width - metr.bar_width, metr.height)
-            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]
-                )
-                cut = (resized[1] - trg_size[1]) / 2
-                src = src.resize(resized)
-                src = src.crop((0, cut, src.size[0], src.size[1] - cut))
-            else:
-                resized = (
-                    src.size[0] * trg_size[1] / src.size[1],
-                    trg_size[1],
-                )
-                cut = (resized[0] - trg_size[0]) / 2
-                src = src.resize(resized)
-                src = src.crop((cut, 0, src.size[0] - cut, src.size[1]))
-
-            img.paste(src, (metr.bar_width, 0))
-            del src
+        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 = 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)
@@ -317,36 +325,118 @@ class WLCover(Cover):
                 fill=self.author_color, width=metr.box_line_width)
         box.skip(metr.box_below_line)
 
                 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,
         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,
+                 color=self.title_color,
                  shadow_color=self.title_shadow,
                 )
                  shadow_color=self.title_shadow,
                 )
+
         box_img = box.image()
 
         box_img = box.image()
 
-        if self.kind == 'Liryka':
-            # top
+        # Find box position.
+        if self.box_position == 'top':
             box_top = metr.box_top_margin
             box_top = metr.box_top_margin
-        elif self.kind == 'Epika':
-            # bottom
+        elif self.box_position == 'bottom':
             box_top = metr.height - metr.box_bottom_margin - box_img.size[1]
             box_top = metr.height - metr.box_bottom_margin - box_img.size[1]
-        else:
-            # center
+        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
             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,
+
+        # 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')
             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)
         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)
+
+        draw.rectangle((0, 0, metr.bar_width, metr.height), fill=self.bar_color)
+
+        if self.background_img:
+            src = Image.open(self.background_img)
+            trg_size = (metr.width - metr.bar_width, metr.height)
+            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]
+                )
+                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],
+                    trg_size[1],
+                )
+                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]))
+
+            img.paste(src, (metr.bar_width, 0))
+            del src
+
+        img = self.add_box(img)
+
+        return img
+
+
+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',
+    ]
+
+    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
 
         return img
 
 
 
         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):
     width = 600
 
 class VirtualoCover(Cover):
     width = 600
@@ -419,3 +509,7 @@ class GandalfCover(Cover):
     logo_bottom = 25
     logo_width = 250
     format = 'PNG'
     logo_bottom = 25
     logo_width = 250
     format = 'PNG'
+
+
+DefaultEbookCover = LogoWLCover
+