new cover scheme; Cover accepts BookInfo now; e-books include cover attribution,...
authorRadek Czajka <radoslaw.czajka@nowoczesnapolska.org.pl>
Mon, 12 Dec 2011 10:25:15 +0000 (11:25 +0100)
committerRadek Czajka <radoslaw.czajka@nowoczesnapolska.org.pl>
Mon, 12 Dec 2011 10:25:15 +0000 (11:25 +0100)
14 files changed:
librarian/__init__.py
librarian/cover.py
librarian/dcparser.py
librarian/epub.py
librarian/epub/xsltLast.xsl
librarian/mobi.py
librarian/packagers.py
librarian/pdf.py
librarian/pdf/wl.cls
librarian/pdf/wl2tex.xslt
scripts/book2cover [new file with mode: 0755]
scripts/book2epub
scripts/book2pdf
setup.py

index 32a3af0..2e515dd 100644 (file)
@@ -150,7 +150,6 @@ class DirDocProvider(DocProvider):
     def __init__(self, dir_):
         self.dir = dir_
         self.files = {}
-        return super(DirDocProvider, self).__init__()
 
     def by_slug_and_lang(self, slug, lang=None):
         fname = WLURI.from_slug_and_lang(slug, lang).filename_stem() + '.xml'
index f7d8f7d..f93e709 100644 (file)
@@ -7,7 +7,79 @@ import Image, ImageFont, ImageDraw, ImageFilter
 from librarian import get_resource
 
 
+class TextBox(object):
+    """Creates an Image with a series of centered strings."""
+
+    SHADOW_X = 3
+    SHADOW_Y = 3
+    SHADOW_BLUR = 3
+
+    def __init__(self, max_width, max_height, padding_x=None, padding_y=None):
+        if padding_x is None:
+            padding_x = self.SHADOW_X + self.SHADOW_BLUR
+        if padding_y is None:
+            padding_y = self.SHADOW_Y + self.SHADOW_BLUR
+
+        self.max_width = max_width
+        self.max_text_width = max_width - 2 * padding_x
+        self.padding_y = padding_y
+        self.height = padding_y
+        self.img = Image.new('RGBA', (max_width, max_height))
+        self.draw = ImageDraw.Draw(self.img)
+        self.shadow_img = None
+        self.shadow_draw = None
+
+    def skip(self, height):
+        """Skips some vertical space."""
+        self.height += height
+
+    def text(self, text, color='#000', font=None, line_height=20, 
+             shadow_color=None):
+        """Writes some centered text."""
+        if shadow_color:
+            if not self.shadow_img:
+                self.shadow_img = Image.new('RGBA', self.img.size)
+                self.shadow_draw = ImageDraw.Draw(self.shadow_img)
+        while text:
+            line = text
+            line_width = self.draw.textsize(line, font=font)[0]
+            while line_width > self.max_text_width:
+                parts = line.rsplit(' ', 1)
+                if len(parts) == 1:
+                    line_width = self.max_text_width
+                    break
+                line = parts[0]
+                line_width = self.draw.textsize(line, font=font)[0]
+            line = line.strip() + ' '
+
+            pos_x = (self.max_width - line_width) / 2
+
+            if shadow_color:
+                self.shadow_draw.text(
+                        (pos_x + self.SHADOW_X, self.height + self.SHADOW_Y),
+                        line, font=font, fill=shadow_color
+                )
+
+            self.draw.text((pos_x, self.height), line, font=font, fill=color)
+            self.height += line_height
+            # go to next line
+            text = text[len(line):]
+
+    def image(self):
+        """Creates the actual Image object."""
+        image = Image.new('RGBA', (self.max_width,
+                                   self.height + self.padding_y))
+        if self.shadow_img:
+            shadow = self.shadow_img.filter(ImageFilter.BLUR)
+            image.paste(shadow, (0, 0), shadow)
+            image.paste(self.img, (0, 0), self.img)
+        else:
+            image.paste(self.img, (0, 0))
+        return image
+
+
 class Cover(object):
+    """Abstract base class for cover images generator."""
     width = 600
     height = 800
     background_color = '#fff'
@@ -31,10 +103,10 @@ class Cover(object):
 
     logo_bottom = None
     logo_width = None
+    uses_dc_cover = False
 
     format = 'JPEG'
 
-
     exts = {
         'JPEG': 'jpg',
         'PNG': 'png',
@@ -45,42 +117,16 @@ class Cover(object):
         'PNG': 'image/png',
         }
 
-
-    @staticmethod
-    def draw_centered_text(text, img, font, 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 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)
-        img.paste(text_img, None, text_img)
-        return pos_y
-
-
-    def __init__(self, author='', title=''):
-        self.author = author
-        self.title = title
+    def __init__(self, book_info):
+        self.author = book_info.author.readable()
+        self.title = book_info.title
 
     def pretty_author(self):
+        """Allows for decorating author's name."""
         return self.author
 
     def pretty_title(self):
+        """Allows for decorating title."""
         return self.title
 
     def image(self):
@@ -97,14 +143,29 @@ class Cover(object):
             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)
-        title_y = self.draw_centered_text(self.pretty_author(), img, author_font,
-                    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_font = self.title_font or ImageFont.truetype(get_resource('fonts/DejaVuSerif.ttf'), 40)
-        self.draw_centered_text(self.pretty_title(), img, title_font,
-                    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)
+        top = self.author_top
+        tbox = TextBox(
+            self.width - self.author_margin_left - self.author_margin_right,
+            self.height - top,
+            )
+        author_font = self.author_font or ImageFont.truetype(
+            get_resource('fonts/DejaVuSerif.ttf'), 30)
+        tbox.text(self.pretty_author(), self.author_color, author_font,
+            self.author_lineskip, self.author_shadow)
+        text_img = tbox.image()
+        img.paste(text_img, (self.author_margin_left, top), text_img)
+        
+        top += text_img.size[1] + self.title_top
+        tbox = TextBox(
+            self.width - self.title_margin_left - self.title_margin_right,
+            self.height - top,
+            )
+        title_font = self.author_font or ImageFont.truetype(
+            get_resource('fonts/DejaVuSerif.ttf'), 40)
+        tbox.text(self.pretty_title(), self.title_color, title_font,
+            self.title_lineskip, self.title_shadow)
+        text_img = tbox.image()
+        img.paste(text_img, (self.title_margin_left, top), text_img)
 
         return img
 
@@ -119,10 +180,122 @@ class Cover(object):
 
 
 class WLCover(Cover):
-    author_font = ImageFont.truetype(get_resource('fonts/JunicodeWL-Italic.ttf'), 40)
-    title_font = ImageFont.truetype(get_resource('fonts/JunicodeWL-Italic.ttf'), 50)
-    logo_width = 250
-    logo_bottom = 20
+    """Default Wolne Lektury cover generator."""
+    uses_dc_cover = True
+    author_font = ImageFont.truetype(
+        get_resource('fonts/JunicodeWL-Regular.ttf'), 20)
+    author_lineskip = 30
+    title_font = ImageFont.truetype(
+        get_resource('fonts/DejaVuSerif-Bold.ttf'), 30)
+    title_lineskip = 40
+    title_box_width = 350
+    bar_width = 35
+    background_color = '#444'
+    author_color = '#444'
+
+    epochs = {
+        u'Starożytność': 0,
+        u'Średniowiecze': 30,
+        u'Renesans': 60,
+        u'Barok': 90,
+        u'Oświecenie': 120,
+        u'Romantyzm': 150,
+        u'Pozytywizm': 180,
+        u'Modernizm': 210,
+        u'Dwudziestolecie międzywojenne': 240,
+        u'Współczesność': 270,
+    }
+
+    def __init__(self, book_info):
+        super(WLCover, self).__init__(book_info)
+        self.kind = book_info.kind
+        self.epoch = book_info.epoch
+        if book_info.cover_url:
+            from urllib2 import urlopen
+            from StringIO import StringIO
+
+            bg_src = urlopen(book_info.cover_url)
+            self.background_img = StringIO(bg_src.read())
+            bg_src.close()
+
+    def pretty_author(self):
+        return self.author.upper()
+
+    def image(self):
+        from colorsys import hsv_to_rgb
+
+        img = Image.new('RGB', (self.width, self.height), self.background_color)
+        draw = ImageDraw.Draw(img)
+
+        if self.epoch in self.epochs:
+            epoch_color = tuple(int(255 * c) for c in hsv_to_rgb(
+                    float(self.epochs[self.epoch]) / 360, .7, .7))
+        else:
+            epoch_color = '#000'
+        draw.rectangle((0, 0, self.bar_width, self.height), fill=epoch_color)
+
+        if self.background_img:
+            src = Image.open(self.background_img)
+            trg_size = (self.width - self.bar_width, self.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, (self.bar_width, 0))
+            del src
+
+        box = TextBox(self.title_box_width, self.height, padding_y=20)
+        box.text(self.pretty_author(), 
+                 font=self.author_font,
+                 line_height=self.author_lineskip,
+                 color=self.author_color,
+                 shadow_color=self.author_shadow,
+                )
+
+        box.skip(10)
+        box.draw.line((75, box.height, 275, box.height), 
+                fill=self.author_color, width=2)
+        box.skip(15)
+
+        box.text(self.pretty_title(),
+                 line_height=self.title_lineskip,
+                 font=self.title_font,
+                 color=epoch_color,
+                 shadow_color=self.title_shadow,
+                )
+        box_img = box.image()
+
+        if self.kind == 'Liryka':
+            # top
+            box_top = 100
+        elif self.kind == 'Epika':
+            # bottom
+            box_top = self.height - 100 - box_img.size[1]
+        else:
+            # center
+            box_top = (self.height - box_img.size[1]) / 2
+
+        box_left = self.bar_width + (self.width - self.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
 
 
 
index 992029e..57308c6 100644 (file)
@@ -147,6 +147,9 @@ class BookInfo(object):
         Field( DCNS('rights'), 'license_description'),
         Field( DCNS('language'), 'language'),
         Field( DCNS('description'), 'description', required=False),
+        Field( DCNS('relation.cover_image.url'), 'cover_url', required=False),
+        Field( DCNS('relation.cover_image.attribution'), 'cover_by', required=False),
+        Field( DCNS('relation.cover_image.source'), 'cover_source', required=False),
     )
 
     @classmethod
index b063380..80941eb 100644 (file)
@@ -16,6 +16,7 @@ from tempfile import mkdtemp, NamedTemporaryFile
 from shutil import rmtree
 
 from librarian import RDFNS, WLNS, NCXNS, OPFNS, XHTMLNS, OutputFile
+from librarian.cover import WLCover
 
 from librarian import functions, get_resource
 
@@ -290,7 +291,7 @@ def transform(wldoc, verbose=False,
     """ produces a EPUB file
 
     sample=n: generate sample e-book (with at least n paragraphs)
-    cover: a cover.Cover object
+    cover: a cover.Cover object or True for default
     flags: less-advertising, without-fonts
     """
 
@@ -392,10 +393,17 @@ def transform(wldoc, verbose=False,
         style = get_resource('epub/style.css')
     zip.write(style, os.path.join('OPS', 'style.css'))
 
-
     if cover:
+        if cover is True:
+            cover = WLCover
+        if cover.uses_dc_cover:
+            if document.book_info.cover_by:
+                document.edoc.getroot().set('data-cover-by', document.book_info.cover_by)
+            if document.book_info.cover_source:
+                document.edoc.getroot().set('data-cover-source', document.book_info.cover_source)
+
         cover_file = StringIO()
-        c = cover(document.book_info.author.readable(), document.book_info.title)
+        c = cover(document.book_info)
         c.save(cover_file)
         c_name = 'cover.%s' % c.ext()
         zip.writestr(os.path.join('OPS', c_name), cover_file.getvalue())
index 67f6b0e..751f97a 100644 (file)
@@ -9,7 +9,7 @@
   <xsl:output doctype-system="http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd" />
   <xsl:output doctype-public="-//W3C//DTD XHTML 1.1//EN" />
 
-  <xsl:template match="/">
+  <xsl:template match="utwor">
     <html>
       <head>
         <link rel="stylesheet" href="style.css" type="text/css" />
 
           <xsl:call-template name="editors" />
 
+          <xsl:if test="@data-cover-by">
+            <p class="info">Okładka na podstawie: 
+            <xsl:choose>
+            <xsl:when test="@data-cover-source">
+                <a>
+                <xsl:attribute name="href">
+                  <xsl:value-of select="@data-cover-source" />
+                </xsl:attribute>
+                <xsl:value-of select="@data-cover-by" />
+                </a>
+            </xsl:when>
+            <xsl:otherwise>
+                <xsl:value-of select="@data-cover-by" />
+            </xsl:otherwise>
+            </xsl:choose>
+            </p>
+          </xsl:if>
+
           <div class="info">
           <img src="jedenprocent.png" alt="Logo 1%" />
           <div>Przekaż 1% podatku na rozwój Wolnych Lektur.</div>
index a93315e..1e7569b 100755 (executable)
@@ -3,6 +3,7 @@
 # This file is part of Librarian, licensed under GNU Affero GPLv3 or later.
 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
 #
+from copy import deepcopy
 import os
 import subprocess
 from tempfile import NamedTemporaryFile
@@ -22,19 +23,27 @@ def transform(wldoc, verbose=False,
     flags: less-advertising,
     """
 
-    book_info = wldoc.book_info
+    document = deepcopy(wldoc)
+    del wldoc
+    book_info = document.book_info
 
     # provide a cover by default
     if not cover:
         cover = WLCover
     cover_file = NamedTemporaryFile(suffix='.png', delete=False)
-    c = cover(book_info.author.readable(), book_info.title)
+    c = cover(book_info)
     c.save(cover_file)
 
+    if cover.uses_dc_cover:
+        if document.book_info.cover_by:
+            document.edoc.getroot().set('data-cover-by', document.book_info.cover_by)
+        if document.book_info.cover_source:
+            document.edoc.getroot().set('data-cover-source', document.book_info.cover_source)
+
     if not flags:
         flags = []
     flags = list(flags) + ['without-fonts']
-    epub = wldoc.as_epub(verbose=verbose, sample=sample, html_toc=True,
+    epub = document.as_epub(verbose=verbose, sample=sample, html_toc=True,
             flags=flags, style=get_resource('mobi/style.css'))
 
     if verbose:
index ebeb5b3..36a7b60 100644 (file)
@@ -130,10 +130,7 @@ class VirtualoEpubPackager(Packager):
                 product_elem[4][0][1].text = cls.utf_trunc(info.author.last_name, 100)
                 xml.append(product_elem)
 
-                cover.VirtualoCover(
-                    u' '.join(info.author.first_names + (info.author.last_name,)),
-                    info.title
-                    ).save(os.path.join(outfile_dir, slug+'.jpg'))
+                cover.VirtualoCover(info).save(os.path.join(outfile_dir, slug+'.jpg'))
                 outfile = os.path.join(outfile_dir, '1.epub')
                 outfile_sample = os.path.join(outfile_dir, '1.sample.epub')
                 doc.save_output_file(epub.transform(doc),
index 02438a6..bcf8d9a 100644 (file)
@@ -21,6 +21,7 @@ from librarian.dcparser import Person
 from librarian.parser import WLDocument
 from librarian import ParseError, DCNS, get_resource, OutputFile
 from librarian import functions
+from librarian.cover import WLCover
 
 
 functions.reg_substitute_entities()
@@ -189,8 +190,15 @@ def transform(wldoc, verbose=False, save_tex=None, morefloats=None,
         document = load_including_children(wldoc)
 
         if cover:
+            if cover is True:
+                cover = WLCover
             document.edoc.getroot().set('data-cover-width', str(cover.width))
             document.edoc.getroot().set('data-cover-height', str(cover.height))
+            if cover.uses_dc_cover:
+                if document.book_info.cover_by:
+                    document.edoc.getroot().set('data-cover-by', document.book_info.cover_by)
+                if document.book_info.cover_source:
+                    document.edoc.getroot().set('data-cover-source', document.book_info.cover_source)
         if flags:
             for flag in flags:
                 document.edoc.getroot().set('flag-' + flag, 'yes')
@@ -222,7 +230,7 @@ def transform(wldoc, verbose=False, save_tex=None, morefloats=None,
         temp = mkdtemp('-wl2pdf')
 
         if cover:
-            c = cover(document.book_info.author.readable(), document.book_info.title)
+            c = cover(document.book_info)
             with open(os.path.join(temp, 'cover.png'), 'w') as f:
                 c.save(f)
 
index 37d1d24..c9305ca 100644 (file)
@@ -244,6 +244,9 @@ Letters={SmallCaps,UppercaseSmallCaps}
 
     \editors
 
+    \vspace{.6em}
+    \coverby
+
     \color{black}
   }
   \end{figure}
index 25d76d9..1a675ba 100644 (file)
             </parm></cmd>
             <xsl:apply-templates select="powiesc|opowiadanie|liryka_l|liryka_lp|dramat_wierszowany_l|dramat_wierszowany_lp|dramat_wspolczesny" />
             <xsl:apply-templates select="utwor" mode="part" />
+
+            <TeXML escape="0">
+                \def\coverby{
+                <xsl:if test="@data-cover-by">Okładka na podstawie: 
+                    <xsl:choose>
+                    <xsl:when test="@data-cover-source">
+                        \href{\datacoversource}{\datacoverby}
+                    </xsl:when>
+                    <xsl:otherwise>
+                        \datacoverby{}
+                    </xsl:otherwise>
+                    </xsl:choose>
+                </xsl:if>
+                }
+            </TeXML>
+
             <cmd name="editorialsection" />
         </env>
     </TeXML>
diff --git a/scripts/book2cover b/scripts/book2cover
new file mode 100755 (executable)
index 0000000..d2befc3
--- /dev/null
@@ -0,0 +1,39 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+#
+# This file is part of Librarian, licensed under GNU Affero GPLv3 or later.
+# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
+#
+import os
+import optparse
+
+from librarian import ParseError
+from librarian.parser import WLDocument
+from librarian.cover import WLCover
+
+
+if __name__ == '__main__':
+    # Parse commandline arguments
+    usage = """Usage: %prog [options] SOURCE [SOURCE...]
+    Create cover images for SOURCE files."""
+
+    parser = optparse.OptionParser(usage=usage)
+
+    parser.add_option('-v', '--verbose', action='store_true', dest='verbose', default=False,
+        help='print status messages to stdout')
+
+    options, input_filenames = parser.parse_args()
+
+    if len(input_filenames) < 1:
+        parser.print_help()
+        exit(1)
+
+    # Do some real work
+    for input_filename in input_filenames:
+        if options.verbose:
+            print input_filename
+
+        output_filename = os.path.splitext(input_filename)[0] + '.png'
+
+        doc = WLDocument.from_file(input_filename)
+        WLCover(doc.book_info).save(output_filename)
index 9af3692..bdb5ac6 100755 (executable)
@@ -20,6 +20,8 @@ if __name__ == '__main__':
 
     parser.add_option('-v', '--verbose', action='store_true', dest='verbose', default=False,
         help='print status messages to stdout')
+    parser.add_option('-c', '--with-cover', action='store_true', dest='with_cover', default=False,
+                      help='create default cover')
     parser.add_option('-d', '--make-dir', action='store_true', dest='make_dir', default=False,
                       help='create a directory for author and put the PDF in it')
     parser.add_option('-o', '--output-file', dest='output_file', metavar='FILE',
@@ -47,7 +49,7 @@ if __name__ == '__main__':
                 output_file = None
 
             doc = WLDocument.from_file(main_input, provider=provider)
-            epub = doc.as_epub()
+            epub = doc.as_epub(cover=options.with_cover)
 
             doc.save_output_file(epub,
                 output_file, options.output_dir, options.make_dir, 'epub')
index 171264b..258c20d 100755 (executable)
@@ -18,6 +18,8 @@ if __name__ == '__main__':
     parser = OptionParser(usage)
     parser.add_option('-v', '--verbose', action='store_true', dest='verbose', default=False,
                       help='make lots of noise and revert to default interaction in LaTeX')
+    parser.add_option('-c', '--with-cover', action='store_true', dest='with_cover', default=False,
+                      help='create default cover')
     parser.add_option('-d', '--make-dir', action='store_true', dest='make_dir', default=False,
                       help='create a directory for author and put the PDF in it')
     parser.add_option('-t', '--save-tex', dest='save_tex', metavar='FILE',
@@ -49,6 +51,7 @@ if __name__ == '__main__':
 
             doc = WLDocument.from_file(main_input, provider=provider)
             pdf = doc.as_pdf(save_tex=options.save_tex,
+                        cover=options.with_cover,
                         morefloats=options.morefloats)
 
             doc.save_output_file(pdf,
index 023c943..4d8ec9b 100755 (executable)
--- a/setup.py
+++ b/setup.py
@@ -39,6 +39,7 @@ setup(
              'scripts/book2mobi',
              'scripts/book2pdf',
              'scripts/book2partner',
+             'scripts/book2cover',
              'scripts/bookfragments',
              'scripts/genslugs'],
     tests_require=['nose>=0.11', 'coverage>=3.0.1'],