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This commit is contained in:
Kovid Goyal 2012-03-31 10:45:51 +05:30
parent 259ee6c6dd
commit 78cb205f1b
1 changed files with 31 additions and 31 deletions
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62
src/calibre/ebooks/pdf/writer.py
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@ -40,27 +40,34 @@ def get_custom_size(opts):
custom_size = None custom_size = None
return custom_size return custom_size
def get_pdf_printer(opts, for_comic=False): def get_pdf_printer(opts, for_comic=False, output_file_name=None):
from calibre.gui2 import is_ok_to_use_qt from calibre.gui2 import is_ok_to_use_qt
if not is_ok_to_use_qt(): if not is_ok_to_use_qt():
raise Exception('Not OK to use Qt') raise Exception('Not OK to use Qt')
printer = QPrinter(QPrinter.HighResolution) printer = QPrinter(QPrinter.HighResolution)
custom_size = get_custom_size(opts) custom_size = get_custom_size(opts)
if isosx and not for_comic:
if opts.output_profile.short_name == 'default' or \ # On OSX, the native engine can only produce a single page size
opts.output_profile.width > 9999: # (usually A4). The Qt engine on the other hand produces image based
if custom_size is None: # PDFs. If we set a custom page size using QSizeF the native engine
printer.setPaperSize(paper_size(opts.paper_size)) # produces unreadable output, so we just ignore the custom size
else: # settings.
printer.setPaperSize(QSizeF(custom_size[0], custom_size[1]), unit(opts.unit)) printer.setPaperSize(paper_size(opts.paper_size))
else: else:
w = opts.output_profile.comic_screen_size[0] if for_comic else \ if opts.output_profile.short_name == 'default' or \
opts.output_profile.width opts.output_profile.width > 9999:
h = opts.output_profile.comic_screen_size[1] if for_comic else \ if custom_size is None:
opts.output_profile.height printer.setPaperSize(paper_size(opts.paper_size))
dpi = opts.output_profile.dpi else:
printer.setPaperSize(QSizeF(float(w) / dpi, float(h) / dpi), QPrinter.Inch) printer.setPaperSize(QSizeF(custom_size[0], custom_size[1]), unit(opts.unit))
else:
w = opts.output_profile.comic_screen_size[0] if for_comic else \
opts.output_profile.width
h = opts.output_profile.comic_screen_size[1] if for_comic else \
opts.output_profile.height
dpi = opts.output_profile.dpi
printer.setPaperSize(QSizeF(float(w) / dpi, float(h) / dpi), QPrinter.Inch)
if for_comic: if for_comic:
# Comic pages typically have their own margins, or their background # Comic pages typically have their own margins, or their background
@ -72,6 +79,12 @@ def get_pdf_printer(opts, for_comic=False):
printer.setOrientation(orientation(opts.orientation)) printer.setOrientation(orientation(opts.orientation))
printer.setOutputFormat(QPrinter.PdfFormat) printer.setOutputFormat(QPrinter.PdfFormat)
printer.setFullPage(for_comic) printer.setFullPage(for_comic)
if output_file_name:
printer.setOutputFileName(output_file_name)
if isosx and not for_comic:
# Ensure we are not generating enormous image based PDFs
printer.setOutputFormat(QPrinter.NativeFormat)
return printer return printer
def get_printer_page_size(opts, for_comic=False): def get_printer_page_size(opts, for_comic=False):
@ -163,15 +176,7 @@ class PDFWriter(QObject): # {{{
if ok: if ok:
item_path = os.path.join(self.tmp_path, '%i.pdf' % len(self.combine_queue)) item_path = os.path.join(self.tmp_path, '%i.pdf' % len(self.combine_queue))
self.logger.debug('\tRendering item %s as %i.pdf' % (os.path.basename(str(self.view.url().toLocalFile())), len(self.combine_queue))) self.logger.debug('\tRendering item %s as %i.pdf' % (os.path.basename(str(self.view.url().toLocalFile())), len(self.combine_queue)))
printer = get_pdf_printer(self.opts) printer = get_pdf_printer(self.opts, output_file_name=item_path)
printer.setOutputFileName(item_path)
# We have to set the engine to Native on OS X after the call to set
# filename. Setting a filename with .pdf as the extension causes
# Qt to set the format to use Qt's PDF engine even if native was
# previously set on the printer. Qt's PDF engine produces image
# based PDFs on OS X, so we cannot use it.
if isosx:
printer.setOutputFormat(QPrinter.NativeFormat)
self.view.page().mainFrame().evaluateJavaScript(''' self.view.page().mainFrame().evaluateJavaScript('''
document.body.style.backgroundColor = "white"; document.body.style.backgroundColor = "white";
@ -193,10 +198,7 @@ class PDFWriter(QObject): # {{{
if self.cover_data is None: if self.cover_data is None:
return return
item_path = os.path.join(self.tmp_path, 'cover.pdf') item_path = os.path.join(self.tmp_path, 'cover.pdf')
printer = get_pdf_printer(self.opts) printer = get_pdf_printer(self.opts, output_file_name=item_path)
printer.setOutputFileName(item_path)
if isosx:
printer.setOutputFormat(QPrinter.NativeFormat)
self.combine_queue.insert(0, item_path) self.combine_queue.insert(0, item_path)
p = QPixmap() p = QPixmap()
p.loadFromData(self.cover_data) p.loadFromData(self.cover_data)
@ -248,10 +250,8 @@ class ImagePDFWriter(object):
os.remove(f.name) os.remove(f.name)
def render_images(self, outpath, mi, items): def render_images(self, outpath, mi, items):
printer = get_pdf_printer(self.opts, for_comic=True) printer = get_pdf_printer(self.opts, for_comic=True,
printer.setOutputFileName(outpath) output_file_name=outpath)
if isosx:
printer.setOutputFormat(QPrinter.NativeFormat)
printer.setDocName(mi.title) printer.setDocName(mi.title)
printer.setCreator(u'%s [%s]'%(__appname__, __version__)) printer.setCreator(u'%s [%s]'%(__appname__, __version__))
# Seems to be no way to set author # Seems to be no way to set author