1 | #! /usr/bin/env python |
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2 | # -*- coding: ISO-8859-15 -*- |
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3 | # |
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4 | # pkpgcounter : a generic Page Description Language parser |
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5 | # |
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6 | # (c) 2003, 2004, 2005, 2006 Jerome Alet <alet@librelogiciel.com> |
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7 | # This program is free software; you can redistribute it and/or modify |
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8 | # it under the terms of the GNU General Public License as published by |
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9 | # the Free Software Foundation; either version 2 of the License, or |
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10 | # (at your option) any later version. |
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11 | # |
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12 | # This program is distributed in the hope that it will be useful, |
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13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 | # GNU General Public License for more details. |
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16 | # |
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17 | # You should have received a copy of the GNU General Public License |
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18 | # along with this program; if not, write to the Free Software |
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19 | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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20 | # |
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21 | # $Id$ |
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22 | # |
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23 | # |
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24 | |
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25 | """This document was created with the help of the ReportLab ToolKit (tm) |
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26 | available as Free Software from http://www.reportlab.org |
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27 | |
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28 | It contains 9 pages, including this one. |
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29 | |
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30 | Each page after this one is entirely filled with 100% of a particular |
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31 | color, as described below : |
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32 | |
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33 | Page 1 ====> This notice |
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34 | Page 2 ====> Red |
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35 | Page 3 ====> Green |
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36 | Page 4 ====> Blue |
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37 | Page 5 ====> Cyan |
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38 | Page 6 ====> Magenta |
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39 | Page 7 ====> Yellow |
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40 | Page 8 ====> Black |
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41 | Page 9 ====> White |
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42 | |
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43 | This document helps to ensure that the computation of ink coverage |
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44 | made by pkpgcounter works as expected. |
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45 | |
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46 | To check by yourself : |
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47 | |
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48 | $ for cspace in BW RGB CMY CMYK ; do |
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49 | echo "Colorspace : $cspace" ; |
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50 | pkpgcounter --colorspace $cspace colors.pdf ; |
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51 | echo ; |
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52 | done |
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53 | |
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54 | Please report any problem to : alet@librelogiciel.com |
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55 | """ |
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56 | |
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57 | import sys |
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58 | try : |
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59 | from reportlab.lib import colors |
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60 | from reportlab.lib import pagesizes |
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61 | from reportlab.lib.units import cm |
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62 | from reportlab.pdfgen import canvas |
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63 | except ImportError : |
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64 | sys.stderr.write("Please download and install ReportLab\n\tfrom http://www.reportlab.org\n") |
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65 | sys.exit(-1) |
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66 | |
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67 | if __name__ == "__main__" : |
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68 | canv = canvas.Canvas("colors.pdf", pagesize=pagesizes.A4) |
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69 | (width, height) = pagesizes.A4 |
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70 | xbase = 2*cm |
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71 | ybase = height - 2*cm |
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72 | |
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73 | # First we output the explanations on the first page. |
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74 | canv.setFont("Helvetica", 16) |
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75 | for line in __doc__.split("\n") : |
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76 | canv.drawString(xbase, ybase, line) |
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77 | ybase -= 24 |
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78 | canv.showPage() |
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79 | |
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80 | # Then we output each page |
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81 | for color in (colors.Color(1, 0, 0), # Red |
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82 | colors.Color(0, 1, 0), # Green |
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83 | colors.Color(0, 0, 1)) : # Blue |
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84 | canv.setStrokeColorRGB(*color.rgb()) |
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85 | canv.setFillColorRGB(*color.rgb()) |
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86 | canv.rect(0, 0, width, height, fill=1) |
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87 | canv.showPage() |
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88 | |
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89 | for color in (colors.CMYKColor(1, 0, 0, 0), # Cyan |
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90 | colors.CMYKColor(0, 1, 0, 0), # Magenta |
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91 | colors.CMYKColor(0, 0, 1, 0), # Yellow |
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92 | colors.CMYKColor(0, 0, 0, 1), # Black |
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93 | colors.CMYKColor(0, 0, 0, 0)) : # White |
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94 | canv.setStrokeColorCMYK(*color.cmyk()) |
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95 | canv.setFillColorCMYK(*color.cmyk()) |
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96 | canv.rect(0, 0, width, height, fill=1) |
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97 | canv.showPage() |
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98 | canv.save() |
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