[1908] | 1 | #! /usr/bin/env python |
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| 2 | # -*- coding: ISO-8859-15 -*- |
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| 3 | |
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| 4 | # A banner generator for PyKota |
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| 5 | # |
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| 6 | # PyKota - Print Quotas for CUPS and LPRng |
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| 7 | # |
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| 8 | # (c) 2003-2004 Jerome Alet <alet@librelogiciel.com> |
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| 9 | # This program is free software; you can redistribute it and/or modify |
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| 10 | # it under the terms of the GNU General Public License as published by |
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| 11 | # the Free Software Foundation; either version 2 of the License, or |
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| 12 | # (at your option) any later version. |
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| 13 | # |
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| 14 | # This program is distributed in the hope that it will be useful, |
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| 15 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 17 | # GNU General Public License for more details. |
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| 18 | # |
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| 19 | # You should have received a copy of the GNU General Public License |
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| 20 | # along with this program; if not, write to the Free Software |
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| 21 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. |
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| 22 | # |
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| 23 | # $Id$ |
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| 24 | # |
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| 25 | # $Log$ |
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[1918] | 26 | # Revision 1.4 2004/11/15 19:59:34 jalet |
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| 27 | # PyKota banners now basically work ! |
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| 28 | # |
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[1911] | 29 | # Revision 1.3 2004/11/12 23:46:44 jalet |
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| 30 | # Heavy work on pkbanner. Not finished yet though, but mostly works. |
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| 31 | # |
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[1909] | 32 | # Revision 1.2 2004/11/11 14:25:48 jalet |
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| 33 | # Added some TODO comments |
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| 34 | # |
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[1908] | 35 | # Revision 1.1 2004/11/10 22:48:47 jalet |
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| 36 | # Banner generator's skeleton added |
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| 37 | # |
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| 38 | # |
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| 39 | # |
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| 40 | |
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| 41 | import sys |
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| 42 | import os |
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[1911] | 43 | import cStringIO |
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[1918] | 44 | import popen2 |
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[1908] | 45 | |
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[1911] | 46 | try : |
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| 47 | from reportlab.pdfgen import canvas |
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| 48 | from reportlab.lib import pagesizes |
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| 49 | from reportlab.lib.units import cm |
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| 50 | except ImportError : |
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| 51 | hasRL = 0 |
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| 52 | else : |
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| 53 | hasRL = 1 |
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| 54 | |
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| 55 | try : |
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| 56 | import PIL.Image |
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| 57 | except ImportError : |
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| 58 | hasPIL = 0 |
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| 59 | else : |
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| 60 | hasPIL = 1 |
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| 61 | |
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| 62 | from pykota.tool import Tool, PyKotaToolError, crashed, N_ |
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| 63 | |
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| 64 | __doc__ = N_("""pkbanner v%s (c) 2003-2004 C@LL - Conseil Internet & Logiciels Libres |
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| 65 | |
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| 66 | Generates banners. |
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| 67 | |
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| 68 | command line usage : |
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| 69 | |
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| 70 | pkbanner [options] [files] |
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| 71 | |
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| 72 | options : |
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| 73 | |
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| 74 | -v | --version Prints pkbanner's version number then exits. |
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| 75 | -h | --help Prints this message then exits. |
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| 76 | |
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| 77 | ... TODO... |
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| 78 | |
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| 79 | examples : |
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| 80 | |
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| 81 | ... TODO... |
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| 82 | |
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| 83 | This program is free software; you can redistribute it and/or modify |
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| 84 | it under the terms of the GNU General Public License as published by |
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| 85 | the Free Software Foundation; either version 2 of the License, or |
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| 86 | (at your option) any later version. |
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| 87 | |
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| 88 | This program is distributed in the hope that it will be useful, |
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| 89 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 90 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 91 | GNU General Public License for more details. |
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| 92 | |
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| 93 | You should have received a copy of the GNU General Public License |
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| 94 | along with this program; if not, write to the Free Software |
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| 95 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. |
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| 96 | |
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| 97 | Please e-mail bugs to: %s""") |
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| 98 | |
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| 99 | class PyKotaBanner(Tool) : |
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| 100 | """A class for pkbanner.""" |
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| 101 | primaryfields = [ |
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| 102 | ("PRINTERNAME", N_("Printer")), |
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| 103 | ("USERNAME", N_("User")), |
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| 104 | ("JOBID", N_("JobId")), |
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| 105 | ("JOBORIGINATINGHOSTNAME", N_("Client host")), |
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| 106 | ("TITLE", N_("Title")), |
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| 107 | ("FILENAME", N_("Filename")), |
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| 108 | ("COPIES", N_("Copies")), |
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| 109 | ("JOBSIZEBYTES", N_("Job size in bytes")), |
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| 110 | ("PRECOMPUTEDJOBSIZE", N_("Estimated job size")), |
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| 111 | ("PRECOMPUTEDJOBPRICE", N_("Estimated job price")), |
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| 112 | ] |
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| 113 | |
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| 114 | secondaryfields = [ |
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| 115 | ("LIMITBY", N_("Account limited by")), |
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| 116 | ("BALANCE", N_("Account balance")), |
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| 117 | ("PAGECOUNTER", N_("Number of pages on this printer")), |
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| 118 | ("SOFTLIMIT", N_("Soft limit")), |
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| 119 | ("HARDLIMIT", N_("Hard limit")), |
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| 120 | ("DATELIMIT", N_("Date limit")), |
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| 121 | ] |
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| 122 | |
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| 123 | tertiaryfields = [ |
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| 124 | ("ACTION", N_("Action taken for current job")), |
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| 125 | ] |
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| 126 | |
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| 127 | def getPageSize(self, pgsize) : |
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| 128 | """Returns the correct page size or None if not found.""" |
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| 129 | try : |
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| 130 | return getattr(pagesizes, pgsize.upper()) |
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| 131 | except AttributeError : |
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| 132 | try : |
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| 133 | return getattr(pagesizes, pgsize.lower()) |
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| 134 | except AttributeError : |
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| 135 | pass |
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| 136 | |
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| 137 | def genPDF(self, pagesize, logo, url) : |
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| 138 | """Generates the banner in PDF format, return the PDF document as a string.""" |
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| 139 | document = cStringIO.StringIO() |
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| 140 | c = canvas.Canvas(document, pagesize=pagesize, pageCompression=1) |
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| 141 | |
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| 142 | c.setAuthor("Jerome Alet") |
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| 143 | c.setTitle("PyKota generated Banner") |
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| 144 | c.setSubject("This is a print banner generated with PyKota") |
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| 145 | |
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| 146 | xcenter = pagesize[0] / 2.0 |
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| 147 | ycenter = pagesize[1] / 2.0 |
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| 148 | |
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| 149 | ypos = pagesize[1] - (2 * cm) |
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| 150 | try : |
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| 151 | imglogo = PIL.Image.open(logo) |
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| 152 | except : |
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| 153 | self.printInfo("Unable to open image %s" % logo, "warn") |
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| 154 | else : |
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| 155 | (width, height) = imglogo.size |
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| 156 | multi = float(width) / (8 * cm) |
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| 157 | width = float(width) / multi |
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| 158 | height = float(height) / multi |
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| 159 | xpos = xcenter - (width / 2.0) |
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| 160 | ypos -= height |
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| 161 | c.drawImage(logo, xpos, ypos, width, height) |
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| 162 | |
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| 163 | # New top |
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| 164 | xpos = pagesize[0] / 5.0 |
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| 165 | ypos -= (1 * cm) + 20 |
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| 166 | |
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| 167 | for fieldsgroup in [ self.primaryfields, self.secondaryfields, self.tertiaryfields] : |
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| 168 | c.saveState() |
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| 169 | for (varname, label) in fieldsgroup : |
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| 170 | c.setFont("Helvetica-Bold", 14) |
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| 171 | c.setFillColorRGB(0, 0, 0) |
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| 172 | message = "%s :" % _(label).title() |
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| 173 | c.drawRightString(xcenter, ypos, message) |
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| 174 | c.setFont("Courier-Bold", 14) |
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| 175 | c.setFillColorRGB(1, 0, 0) |
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| 176 | c.drawString(xcenter + 0.5*cm, ypos, os.environ.get("PYKOTA%s" % varname, _("Unknown"))) |
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| 177 | ypos -= 18 # next line |
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| 178 | c.restoreState() |
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| 179 | ypos -= 18 # skip an additionnal line |
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| 180 | |
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| 181 | # URL |
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| 182 | c.saveState() |
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| 183 | c.setFont("Courier-Bold", 16) |
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| 184 | c.setFillColorRGB(0, 0, 1) |
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| 185 | c.drawCentredString(xcenter, 2 * cm, url) |
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| 186 | c.restoreState() |
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| 187 | |
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| 188 | c.showPage() |
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| 189 | c.save() |
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| 190 | return document.getvalue() |
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| 191 | |
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| 192 | def main(self, files, options) : |
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| 193 | """Generates a banner.""" |
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| 194 | if not hasRL : |
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| 195 | raise PyKotaToolError, "The ReportLab module is missing. Download it from http://www.reportlab.org" |
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| 196 | if not hasPIL : |
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| 197 | raise PyKotaToolError, "The Python Imaging Library is missing. Download it from http://www.pythonware.com/downloads" |
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| 198 | |
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| 199 | pagesize = self.getPageSize(options["pagesize"]) |
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| 200 | if pagesize is None : |
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| 201 | pagesize = self.getPageSize("a4") |
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| 202 | self.printInfo("Unknown page size %s, defaulting to A4." % options["pagesize"], "warn") |
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| 203 | |
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[1918] | 204 | self.logdebug("Generating the banner in PDF format...") |
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[1911] | 205 | doc = self.genPDF(pagesize, options["logo"], options["url"].strip()) |
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[1918] | 206 | |
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| 207 | self.logdebug("Converting the banner to PostScript...") |
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| 208 | os.environ["PATH"] = "%s:/bin:/usr/bin:/usr/local/bin:/opt/bin:/sbin:/usr/sbin" % os.environ.get("PATH", "") |
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| 209 | child = popen2.Popen3("gs -q -dNOPAUSE -dBATCH -dPARANOIDSAFER -sDEVICE=pswrite -sOutputFile=- - 2>/tmp/errgs") |
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| 210 | child.tochild.write(doc) |
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| 211 | child.tochild.close() |
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| 212 | sys.stdout.write(child.fromchild.read()) |
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| 213 | sys.stdout.flush() |
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| 214 | child.fromchild.close() |
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| 215 | status = child.wait() |
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| 216 | if os.WIFEXITED(status) : |
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| 217 | status = os.WEXITSTATUS(status) |
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| 218 | self.logdebug("PDF to PostScript converter exit code is %s" % str(status)) |
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| 219 | self.logdebug("Banner completed.") |
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| 220 | return status |
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[1911] | 221 | |
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[1908] | 222 | def getInfo(name) : |
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| 223 | """Extracts some information from the environment.""" |
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| 224 | return os.environ.get(name, _("Unknown")) |
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| 225 | |
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| 226 | if __name__ == "__main__" : |
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[1909] | 227 | # TODO : --papertray : to print banners on a different paper (colored for example) |
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[1911] | 228 | retcode = 0 |
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| 229 | try : |
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| 230 | defaults = { \ |
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| 231 | "pagesize" : "a4", \ |
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| 232 | "logo" : "/usr/share/pykota/logos/pykota.jpeg", |
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| 233 | "url" : "http://www.librelogiciel.com/software/", |
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| 234 | } |
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| 235 | short_options = "vhl:p:u:" |
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| 236 | long_options = ["help", "version", "pagesize=", "logo=", "url="] |
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| 237 | |
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| 238 | # Initializes the command line tool |
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| 239 | banner = PyKotaBanner(doc=__doc__) |
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| 240 | |
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| 241 | # parse and checks the command line |
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| 242 | (options, args) = banner.parseCommandline(sys.argv[1:], short_options, long_options, allownothing=1) |
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| 243 | |
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| 244 | # sets long options |
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| 245 | options["help"] = options["h"] or options["help"] |
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| 246 | options["version"] = options["v"] or options["version"] |
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| 247 | options["pagesize"] = options["p"] or options["pagesize"] or defaults["pagesize"] |
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| 248 | options["logo"] = options["l"] or options["logo"] or defaults["logo"] |
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| 249 | options["url"] = options["u"] or options["url"] or defaults["url"] |
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| 250 | |
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| 251 | if options["help"] : |
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| 252 | banner.display_usage_and_quit() |
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| 253 | elif options["version"] : |
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| 254 | banner.display_version_and_quit() |
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| 255 | else : |
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| 256 | retcode = banner.main(args, options) |
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| 257 | except SystemExit : |
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| 258 | pass |
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| 259 | except : |
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| 260 | try : |
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| 261 | banner.crashed("pkbanner failed") |
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| 262 | except : |
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| 263 | crashed("pkbanner failed") |
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| 264 | retcode = -1 |
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| 265 | |
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| 266 | sys.exit(retcode) |
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