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# module : graphics/inkscape
# copyright : PRAGMA Advanced Document Engineering
# version : 2002-2005
# author : Hans Hagen
#
# project : ConTeXt / eXaMpLe
# concept : Hans Hagen
# info : j.hagen@xs4all.nl
# www : www.pragma-ade.com
# ['base/variables','variables'].each do |r| begin require r ; rescue Exception ; else break ; end ; end
# ['graphics/gs','gs'].each do |r| begin require r ; rescue Exception ; else break ; end ; end
require 'base/variables'
require 'base/system'
require 'graphics/gs'
class InkScape
include Variables
def initialize(logger=nil)
unless logger then
puts('inkscape class needs a logger')
exit
end
@variables = Hash.new
@logger = logger
reset
end
def reset
# nothing yet
end
def supported?(filename)
filename =~ /.*\.(svg|svgz)/io
end
def convert(logfile=System.null)
directpdf = false
logfile = logfile.gsub(/\/+$/,"")
inpfilename = getvariable('inputfile').dup
outfilename = getvariable('outputfile').dup
outfilename = inpfilename.dup if outfilename.empty?
outfilename.gsub!(/(\.[^\.]*?)$/, ".pdf")
tmpfilename = outfilename.gsub(/(\.[^\.]*?)$/, ".ps")
if inpfilename.empty? || outfilename.empty? then
report("no filenames given")
return false
end
if inpfilename == outfilename then
report("filenames must differ (#{inpfilename} #{outfilename})")
return false
end
unless FileTest.file?(inpfilename) then
report("unknown file #{inpfilename}")
return false
end
# we need to redirect the error info else we get a pop up console
if directpdf then
report("converting #{inpfilename} to #{outfilename}")
# resultpipe = "--without-gui --export-pdf=\"#{outfilename}\" 2>#{logfile}"
resultpipe = "--without-gui --export-filename=\"#{outfilename}\" 2>#{logfile}"
else
report("converting #{inpfilename} to #{tmpfilename}")
resultpipe = "--without-gui --print=\">#{tmpfilename}\" 2>#{logfile}"
end
arguments = [resultpipe,inpfilename].join(' ').gsub(/\s+/,' ')
ok = true
begin
debug("inkscape: #{arguments}")
# should work
# ok = System.run('inkscape',arguments) # does not work here
# but 0.40 only works with this:
command = "inkscape #{arguments}"
report(command)
ok = system(command)
# and 0.41 fails with everything
# and 0.45 is better
rescue
report("aborted due to error")
return false
else
return false unless ok
end
if not directpdf then
ghostscript = GhostScript.new(@logger)
ghostscript.setvariable('inputfile',tmpfilename)
ghostscript.setvariable('outputfile',outfilename)
report("converting #{tmpfilename} to #{outfilename}")
ghostscript.convert
begin
File.delete(tmpfilename)
rescue
end
end
end
end
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