[epub] fix for calibre warning - cover does not need linear=no attribute

[librarian.git] / librarian / cover.py

diff --git a/librarian/cover.py b/librarian/cover.py
index 9b10ed1..2f3117c 100644 (file)
--- a/librarian/cover.py
+++ b/librarian/cover.py
@@ -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 +214,7 @@ 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)
+        return self.final_image().save(format=self.format, quality=95, *args, **kwargs)

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


@@ -211,7 +223,7 @@ 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 +248,11 @@ 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 +268,25 @@ 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


@@ -266,46 +294,17 @@ 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, 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
+        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)


@@ -321,46 +320,68 @@ 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,
                 )
 

-        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()
 
         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)

 
 

-        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)
+        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
 
 
         return img
 


@@ -483,3 +504,7 @@ class GandalfCover(Cover):
     logo_bottom = 25
     logo_width = 250
     format = 'PNG'
     logo_bottom = 25
     logo_width = 250
     format = 'PNG'

+
+
+DefaultEbookCover = LogoWLCover
+