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Initial implementation of PDF cropping tool, pdftrim

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This commit is contained in:
Kovid Goyal 2009-01-08 12:49:39 -08:00
commit e7f2612643
4 changed files with 93 additions and 10 deletions
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2
src/calibre/devices/prs505/driver.py
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@ -86,7 +86,7 @@ class PRS505(Device):
deviceclass=cls.__name__,
vendor_id=hex(cls.VENDOR_ID),
product_id=hex(cls.PRODUCT_ID),
bcd=hex(cls.BCD),
bcd=hex(cls.BCD[0]),
main_memory=cls.MAIN_MEMORY_VOLUME_LABEL,
storage_card=cls.STORAGE_CARD_VOLUME_LABEL,
)

19
src/calibre/devices/usbms/device.py
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@ -21,7 +21,7 @@ class Device(_Device):
VENDOR_ID = 0x0
PRODUCT_ID = 0x0
BCD = 0x0
BCD = None
VENDOR_NAME = ''
PRODUCT_NAME = ''
@ -38,11 +38,9 @@ class Device(_Device):
<match key="info.category" string="volume">
<match key="@info.parent:@info.parent:@info.parent:@info.parent:usb.vendor_id" int="%(vendor_id)s">
<match key="@info.parent:@info.parent:@info.parent:@info.parent:usb.product_id" int="%(product_id)s">
<match key="@info.parent:@info.parent:@info.parent:@info.parent:usb.device_revision_bcd" int="%(bcd)s">
<match key="volume.is_partition" bool="false">
<match key="volume.is_partition" bool="false">
<merge key="volume.label" type="string">%(main_memory)s</merge>
<merge key="%(app)s.mainvolume" type="string">%(deviceclass)s</merge>
</match>
</match>
</match>
</match>
@ -52,11 +50,9 @@ class Device(_Device):
<match key="info.category" string="volume">
<match key="@info.parent:@info.parent:@info.parent:@info.parent:usb.vendor_id" int="%(vendor_id)s">
<match key="@info.parent:@info.parent:@info.parent:@info.parent:usb.product_id" int="%(product_id)s">
<match key="@info.parent:@info.parent:@info.parent:@info.parent:usb.device_revision_bcd" int="%(bcd)s">
<match key="volume.is_partition" bool="true">
<match key="volume.is_partition" bool="true">
<merge key="volume.label" type="string">%(storage_card)s</merge>
<merge key="%(app)s.cardvolume" type="string">%(deviceclass)s</merge>
</match>
</match>
</match>
</match>
@ -68,17 +64,22 @@ class Device(_Device):
self._main_prefix = self._card_prefix = None
@classmethod
def get_fdi(cls):
def get_bcd_less_fdi(cls):
return cls.FDI_TEMPLATE%dict(
app=__appname__,
deviceclass=cls.__name__,
vendor_id=hex(cls.VENDOR_ID),
product_id=hex(cls.PRODUCT_ID),
bcd=hex(cls.BCD),
main_memory=cls.MAIN_MEMORY_VOLUME_LABEL,
storage_card=cls.STORAGE_CARD_VOLUME_LABEL,
)
@classmethod
def get_fdi(cls):
if cls.BCD is None:
return cls.get_bcd_less_fdi()
raise NotImplementedError('TODO:')
def set_progress_reporter(self, report_progress):
self.report_progress = report_progress

81
src/calibre/ebooks/pdf/pdftrim.py Normal file
View File

@ -0,0 +1,81 @@
from __future__ import with_statement
__license__ = 'GPL v3'
__copyright__ = '2009, James Beal, james_@catbus.co.uk'
__docformat__ = 'restructuredtext en'
'crop a pdf file'
import os, sys, re
from calibre.utils.config import Config, StringConfig
from pyPdf import PdfFileWriter, PdfFileReader
def config(defaults=None):
desc = _('Options to control the transformation of pdf')
default_crop=10
if defaults is None:
c = Config('trimpdf', desc)
else:
c = StringConfig(defaults, desc)
c.add_opt('verbose', ['-v', '--verbose'], default=0, action='count',
help=_('Be verbose, useful for debugging. Can be specified multiple times for greater verbosity.'))
c.add_opt('output', ['-o', '--output'],default='cropped.pdf',
help=_('Path to output file. By default a file is created in the current directory.'))
c.add_opt('bottom_left_x', [ '-x', '--leftx'], default=default_crop,
help=_('Number of pixels to crop from the left most x (default is %d) ')%default_crop )
c.add_opt('bottom_left_y', [ '-y', '--lefty'], default=default_crop,
help=_('Number of pixels to crop from the left most y (default is %d) ')%default_crop )
c.add_opt('top_right_x', [ '-v', '--rightx'], default=default_crop,
help=_('Number of pixels to crop from the right most x (default is %d) ')%default_crop )
c.add_opt('top_right_y', [ '-w', '--righty'], default=default_crop,
help=_('Number of pixels to crop from the right most y (default is %d)')%default_crop )
c.add_opt('bounding', ['-b', '--bounding'],
help=_('A file generated by ghostscript which allows each page to be individually cropped'))
return c
def option_parser():
c = config()
return c.option_parser(usage=_('''\
%prog [options] file.pdf
Crop a pdf.
'''))
def main(args=sys.argv):
parser = option_parser()
opts, args = parser.parse_args(args)
source = os.path.abspath(args[1])
input_pdf = PdfFileReader(file(source, "rb"))
if opts.bounding != None:
try:
bounding = open( opts.bounding , 'r' )
bounding_regex= re.compile('%%BoundingBox: (?P<bottom_x>[0-9]+) (?P<bottom_y>[0-9]+) (?P<top_x>[0-9]+) (?P<top_y>[0-9]+)')
except:
print 'Error opening %s' % opts.bounding
return 1
output_pdf = PdfFileWriter()
for page_number in range (0, input_pdf.getNumPages() ):
page = input_pdf.getPage(page_number)
if opts.bounding != None:
while True:
line=bounding.readline()
match=bounding_regex.search(line)
if match !=None:
break
page.mediaBox.upperRight = (match.group('top_x'),match.group('top_y'))
page.mediaBox.lowerLeft = (match.group('bottom_x'),match.group('bottom_y'))
else:
page.mediaBox.upperRight = (page.bleedBox.getUpperRight_x()-opts.top_right_x,page.bleedBox.getUpperRight_y()-opts.top_right_y)
page.mediaBox.lowerLeft = (page.bleedBox.getLowerLeft_x()+opts.bottom_left_x,page.bleedBox.getLowerLeft_y()+opts.bottom_left_y)
output_pdf.addPage(page)
if opts.bounding != None:
bounding.close()
output_file = file(opts.output, "wb")
output_pdf.write(output_file)
output_file.close()
return 0
if __name__ == '__main__':
sys.exit(main())

1
src/calibre/linux.py
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@ -65,6 +65,7 @@ entry_points = {
'calibre-fontconfig = calibre.utils.fontconfig:main',
'calibre-parallel = calibre.parallel:main',
'calibre-customize = calibre.customize.ui:main',
'pdftrim = calibre.ebooks.pdf.pdftrim:main' ,
],
'gui_scripts' : [
__appname__+' = calibre.gui2.main:main',