366 lines
11 KiB
Python
366 lines
11 KiB
Python
#! /usr/bin/python
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# coding=utf-8
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# Generator-Python - a Inkscape extension to generate end-use files
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# from a model
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# Copyright (C) 2017 Johannes Matschke
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# Based on the Generator extension by Aurélio A. Heckert
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# Version 1.0
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import sys
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import os
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import subprocess
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import platform
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import distutils.spawn
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import tempfile
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import shutil
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import argparse
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import csv
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import ctypes
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class SimpleObject:
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pass
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class MyArgumentParser(argparse.ArgumentParser):
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def error(self, message):
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# use "argument" instead of "--argument"
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message = message.replace(' --', ' ')
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Show_error_and_exit('Argument error', message)
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def Is_executable(filename):
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return distutils.spawn.find_executable(filename) is not None
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if platform.system() != 'Windows' and Is_executable('zenity'):
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class ProgressBar():
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def __init__(self, title, text):
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self.__title = title
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self.__text = text
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self.__active = False
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def __enter__(self):
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self.__devnull = open(os.devnull, 'w')
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self.__proc = subprocess.Popen(
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[
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'zenity',
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'--progress',
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'--title={0}'.format(self.__title),
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'--text={0}'.format(self.__text),
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'--auto-close',
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'--width=400'
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], stdin=subprocess.PIPE, stdout=self.__devnull,
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stderr=self.__devnull)
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self.__active = True
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return self
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def __exit__(self, *args):
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if self.__active:
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self.__close()
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def Set_percent(self, p):
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if self.is_active:
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self.__proc.stdin.write(str(p) + '\n')
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@property
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def is_active(self):
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if self.__active and self.__proc.poll() is not None:
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self.__close()
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return self.__active
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def __close(self):
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if not self.__proc.stdin.closed:
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self.__proc.stdin.close()
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if not self.__devnull.closed:
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self.__devnull.close()
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self.__active = False
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else:
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class ProgressBar():
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def __init__(self, title, text):
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pass
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def __enter__(self):
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return self
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def __exit__(self, *args):
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pass
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def Set_percent(self, p):
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pass
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@property
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def is_active(self):
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return True
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if platform.system() == 'Windows':
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def Show_info(title, message):
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MB_ICONINFORMATION = 0x40
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ctypes.windll.user32.MessageBoxA(0, message, title, MB_ICONINFORMATION)
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def Show_question(title, message):
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MB_ICONQUESTION = 0x20
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MB_YESNO = 0x4
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IDYES = 6
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return ctypes.windll.user32.MessageBoxA(
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0, message, title, MB_ICONQUESTION | MB_YESNO) == IDYES
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def Show_error_and_exit(title, message):
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MB_ICONERROR = 0x10
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ctypes.windll.user32.MessageBoxA(0, message, title, MB_ICONERROR)
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sys.exit(1)
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elif Is_executable('zenity'):
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def Show_info(title, message):
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Zenity('info', title, message)
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def Show_question(title, message):
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return Zenity('question', title, message) == 0
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def Show_error_and_exit(title, message):
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Zenity('error', title, message)
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sys.exit(1)
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def Zenity(mode, title, message):
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return Call_no_output(
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[
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'zenity',
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'--{0}'.format(mode),
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'--title={0}'.format(title),
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'--text={0}'.format(message)
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])
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else:
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def Show_info(title, message):
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pass
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def Show_question(title, message):
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return None
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def Show_error_and_exit(title, message):
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sys.stderr.write(title + '\n' + message + '\n')
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sys.exit(1)
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def Get_command_line_arguments():
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parser = MyArgumentParser()
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parser.add_argument(
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'--vartype', choices=['COLUMN', 'NAME'], required=True, type=str.upper,
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help='How to refer to columns')
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parser.add_argument(
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'--extravars', default='',
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help='Extra textual values to be replaced')
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parser.add_argument(
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'--datafile', required=True, help='path of CSV data file')
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parser.add_argument(
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'--format',
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choices=['PDF', 'SVG', 'PS', 'EPS', 'PNG', 'JPG'],
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default='PDF', type=str.upper, help='Export format')
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parser.add_argument(
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'--dpi', default='90', help='DPI (for PNG and JPG)')
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parser.add_argument(
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'--output', required=True, help='Output pattern')
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parser.add_argument(
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'--preview', choices=['TRUE', 'FALSE'], default='FALSE', type=str.upper,
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help='Preview (only first page)')
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parser.add_argument(
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'--specialchars', choices=['TRUE', 'FALSE'], default='TRUE', type=str.upper,
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help='Handle special XML characters')
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parser.add_argument('infile', help='SVG input file')
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args = parser.parse_known_args()[0]
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return args
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def Generate(replacements):
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template = globaldata.template
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destfile = globaldata.args.output
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for search, replace in replacements:
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template = template.replace(search, replace)
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destfile = destfile.replace(search, replace)
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tmp_svg = os.path.join(globaldata.tempdir, 'temp.svg')
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with open(tmp_svg, 'wb') as f:
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f.write(template)
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if globaldata.args.format == 'SVG':
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shutil.move(tmp_svg, destfile)
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elif globaldata.args.format == 'JPG':
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tmp_png = os.path.join(globaldata.tempdir, 'temp.png')
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Ink_render(tmp_svg, tmp_png, 'PNG')
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Png_to_jpg(tmp_png, destfile)
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else:
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Ink_render(tmp_svg, destfile, globaldata.args.format)
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return destfile
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def Ink_render(infile, outfile, format):
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Call_or_die(
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[
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'inkscape',
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'--without-gui',
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'--export-{0}={1}'.format(
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format.lower(), outfile),
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'--export-dpi={0}'.format(globaldata.args.dpi),
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infile
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],
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'Inkscape Converting Error')
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def Png_to_jpg(pngfile, jpgfile):
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if platform.system() == 'Windows':
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Show_error_and_exit(
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'JPG Export', 'JPG Export is not available on Windows.')
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elif Is_executable('convert'):
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Call_or_die(
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[
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'convert',
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'PNG:' + pngfile,
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'JPG:' + jpgfile
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],
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'ImageMagick Converting Error')
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else:
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Show_error_and_exit(
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'JPG export', 'JPG export is not available because '
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'Image Magick is not installed.')
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def Prepare_data(data_old):
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data_new = []
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if len(globaldata.args.extravars) == 0:
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extra_value_info = []
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else:
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extra_value_info = \
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[x.split('=>', 2) for x in globaldata.args.extravars.split('|')]
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for row in data_old:
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row_new = []
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for key, value in row:
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if key == '':
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continue
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if globaldata.args.specialchars == 'TRUE':
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value = value.replace('&', '&')
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value = value.replace('<', '<')
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value = value.replace('>', '>')
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value = value.replace('"', '"')
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value = value.replace("'", ''')
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row_new.append(('%VAR_'+key+'%', value))
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for search_replace in extra_value_info:
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if len(search_replace) != 2:
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Show_error_and_exit(
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'Extra vars error',
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'There is something wrong with your extra vars '
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'parameter')
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if search_replace[1] == key:
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row_new.append((search_replace[0], value))
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data_new.append(row_new)
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return data_new
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def Open_file_viewer(filename):
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if platform.system() == 'Windows':
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os.startfile(filename)
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elif Is_executable('xdg-open'):
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Call_no_output(['xdg-open', filename])
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else:
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Show_error_and_exit(
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'No preview', 'Preview is not available because '
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'"xdg-open" is not installed.')
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def Call_no_output(args):
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with open(os.devnull, 'w') as devnull:
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return subprocess.call(args, stdout=devnull, stderr=devnull)
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def Call_or_die(args, error_title):
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try:
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subprocess.check_output(args, stderr=subprocess.STDOUT)
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except subprocess.CalledProcessError as error:
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Show_error_and_exit(error_title, error.output)
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def Process_csv_file(csvfile):
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if globaldata.args.vartype == 'COLUMN':
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csvdata = [[(str(x), y) for x, y in enumerate(row, start=1)]
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for row in csv.reader(csvfile)]
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else:
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csvdata = [row.items() for row in csv.DictReader(csvfile)]
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csvdata = Prepare_data(csvdata)
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count = sum(1 for i in csvdata)
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if count == 0:
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Show_error_and_exit(
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'Empty CSV file', 'There are no data sets in your CSV file.')
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if globaldata.args.preview == 'TRUE':
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for row in csvdata:
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varlist = '\n'.join(
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[key for key, value in row])
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Show_info(
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'Generator Variables',
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'The replaceable text, based on your configuration and on '
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'the CSV are:\n{0}'.format(varlist))
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new_file = Generate(row)
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Open_file_viewer(new_file)
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break
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else: # no preview
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with ProgressBar('Generator', 'Generating...') as progress:
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for num, row in enumerate(csvdata, start=1):
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Generate(row)
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if not progress.is_active:
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break
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progress.Set_percent(num * 100 / count)
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try:
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globaldata = SimpleObject()
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globaldata.args = Get_command_line_arguments()
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globaldata.tempdir = tempfile.mkdtemp()
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if not os.path.isfile(globaldata.args.datafile):
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Show_error_and_exit(
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'File not found', 'The CSV file "{0}" does not '
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'exist.'.format(globaldata.args.datafile))
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if (not os.path.splitext(globaldata.args.output)[1][1:].upper() ==
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globaldata.args.format):
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if Show_question(
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'Output file extension',
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'Your output pattern has a file extension '
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'diferent from the export format.\n\nDo you want to '
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'add the file extension?'):
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globaldata.args.output += '.' + \
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globaldata.args.format.lower()
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outdir = os.path.dirname(globaldata.args.output)
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if outdir != '' and not os.path.exists(outdir):
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os.makedirs(outdir)
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with open(globaldata.args.infile, 'rb') as f:
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globaldata.template = f.read()
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with open(globaldata.args.datafile, 'rb') as csvfile:
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Process_csv_file(csvfile)
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finally:
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shutil.rmtree(globaldata.tempdir)
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