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EPUB Input plugin now rasterizes cover and sets a type='titlepage' guide element to point to the HTML cover. The HTML cover is removed from the spine.

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This commit is contained in:
Kovid Goyal 2009-04-19 20:12:25 -07:00
parent 1424632286
commit c37c5436b0
2 changed files with 41 additions and 2 deletions
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5
src/calibre/ebooks/__init__.py
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@ -59,7 +59,10 @@ class HTMLRenderer(object):
def render_html(path_to_html, width=590, height=750):
from PyQt4.QtWebKit import QWebPage
from PyQt4.Qt import QEventLoop, QPalette, Qt, SIGNAL, QUrl, QSize
from PyQt4.Qt import QEventLoop, QPalette, Qt, SIGNAL, QUrl, QSize, \
QApplication
if QApplication.instance() is None:
QApplication([])
path_to_html = os.path.abspath(path_to_html)
with CurrentDir(os.path.dirname(path_to_html)):
page = QWebPage()

38
src/calibre/ebooks/epub/input.py
View File

@ -51,6 +51,39 @@ class EPUBInput(InputFormatPlugin):
traceback.print_exc()
return False
@classmethod
def rationalize_cover(self, opf):
guide_cover, guide_elem = None, None
for guide_elem in opf.iterguide():
if guide_elem.get('type', '').lower() == 'cover':
guide_cover = guide_elem.get('href', '')
break
if not guide_cover:
return
spine = list(opf.iterspine())
if not spine:
return
idref = spine[0].get('idref', '')
manifest = list(opf.itermanifest())
if not manifest:
return
if manifest[0].get('id', False) != idref:
return
spine[0].getparent().remove(spine[0])
guide_elem.set('href', 'calibre_raster_cover.jpg')
for elem in list(opf.iterguide()):
if elem.get('type', '').lower() == 'titlepage':
elem.getparent().remove(elem)
from calibre.ebooks.oeb.base import OPF
t = etree.SubElement(guide_elem.getparent(), OPF('reference'))
t.set('type', 'titlepage')
t.set('href', guide_cover)
t.set('title', 'Title Page')
from calibre.ebooks import render_html
open('calibre_raster_cover.jpg', 'wb').write(
render_html(guide_cover).data)
def convert(self, stream, options, file_ext, log, accelerators):
from calibre.utils.zipfile import ZipFile
from calibre import walk
@ -75,14 +108,17 @@ class EPUBInput(InputFormatPlugin):
opf = os.path.relpath(opf, os.getcwdu())
parts = os.path.split(opf)
opf = OPF(opf, os.path.dirname(os.path.abspath(opf)))
if len(parts) > 1:
delta = '/'.join(parts[:-1])+'/'
opf = OPF(opf, os.path.dirname(os.path.abspath(opf)))
for elem in opf.itermanifest():
elem.set('href', delta+elem.get('href'))
for elem in opf.iterguide():
elem.set('href', delta+elem.get('href'))
self.rationalize_cover(opf)
with open('content.opf', 'wb') as nopf:
nopf.write(opf.render())