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Diffstat (limited to 'bin/pychart/pngcanvas.py')
| -rw-r--r-- | bin/pychart/pngcanvas.py | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/bin/pychart/pngcanvas.py b/bin/pychart/pngcanvas.py new file mode 100644 index 00000000000..b0e95960a06 --- /dev/null +++ b/bin/pychart/pngcanvas.py @@ -0,0 +1,55 @@ +# +# Copyright (C) 2000-2005 by Yasushi Saito (yasushi.saito@gmail.com) +# +# Jockey is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by the +# Free Software Foundation; either version 2, or (at your option) any +# later version. +# +# Jockey is distributed in the hope that it will be useful, but WITHOUT +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +# for more details. +# +import sys +import os +import gs_frontend +import theme + +class T(gs_frontend.T): + def close(self): + gs_frontend.T.close(self) + if self.__output_lines == []: + return + + if theme.use_color: + gs_args = "-sDEVICE=png256 -dTextAlphaBits=4 -q -dNOPAUSE" #PDS + else: + gs_args = "-sDEVICE=pnggray -dTextAlphaBits=4 -q -dNOPAUSE" #PDS + + + temp_fname = None # the temporary file desc. + out_fd = None # the final destination. + + if self.__out_fname and isinstance(self.__out_fname, str): + gs_args += " -sOutputFile=%s" % self.__out_fname + else: + if not self.__out_fname: + out_fd = sys.stdout + else: + if not hasattr(self.__out_fname, "write"): + raise Exception, "Expecting either a filename or a file-like object, but got %s" % self.__out_fname + out_fd = self.__out_fname + import tempfile + temp_fname = tempfile.mktemp() + gs_args += " -sOutputFile=%s" % temp_fname + self.start_gs(gs_args) + self.close_gs() + + if temp_fname: + temp_fd = file(temp_fname, 'rb') + out_fd.write(temp_fd.read()) + temp_fd.close() + + + |