gnu/dist/groff/src/libs/libgroff/paper.cpp

   1 /*      $NetBSD$        */
   2
   3 // -*- C++ -*-
   4 /* Copyright (C) 2002, 2003, 2004
   5    Free Software Foundation, Inc.
   6      Written by Werner Lemberg (wl@gnu.org)
   7
   8 This file is part of groff.
   9
  10 groff is free software; you can redistribute it and/or modify it under
  11 the terms of the GNU General Public License as published by the Free
  12 Software Foundation; either version 2, or (at your option) any later
  13 version.
  14
  15 groff is distributed in the hope that it will be useful, but WITHOUT ANY
  16 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  17 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  18 for more details.
  19
  20 You should have received a copy of the GNU General Public License along
  21 with groff; see the file COPYING.  If not, write to the Free Software
  22 Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */
  23
  24 #include "lib.h"
  25 #include "paper.h"
  26
  27 paper papersizes[NUM_PAPERSIZES];
  28
  29 // length and width in mm
  30 static void add_iso_paper(char series, int offset,
  31                           int start_length, int start_width)
  32 {
  33   int length = start_length;
  34   int width = start_width;
  35   for (int i = 0; i < 8; i++)
  36   {
  37     char *p = new char[3];
  38     p[0] = series;
  39     p[1] = '0' + i;
  40     p[2] = '\0';
  41     papersizes[offset + i].name = p;
  42     // convert mm to inch
  43     papersizes[offset + i].length = (double)length / 25.4;
  44     papersizes[offset + i].width = (double)width / 25.4;
  45     // after division by two, values must be rounded down to the next
  46     // integer (as specified by ISO)
  47     int tmp = length;
  48     length = width;
  49     width = tmp / 2;
  50   }
  51 }
  52
  53 // length and width in inch
  54 static void add_american_paper(const char *name, int idx,
  55                                double length, double width )
  56 {
  57   char *p = new char[strlen(name) + 1];
  58   strcpy(p, name);
  59   papersizes[idx].name = p;
  60   papersizes[idx].length = length;
  61   papersizes[idx].width = width;
  62 }
  63
  64 int papersize_init::initialised = 0;
  65
  66 papersize_init::papersize_init()
  67 {
  68   if (initialised)
  69     return;
  70   initialised = 1;
  71   add_iso_paper('a', 0, 1189, 841);
  72   add_iso_paper('b', 8, 1414, 1000);
  73   add_iso_paper('c', 16, 1297, 917);
  74   add_iso_paper('d', 24, 1090, 771);
  75   add_american_paper("letter", 32, 11, 8.5);
  76   add_american_paper("legal", 33, 14, 8.5);
  77   add_american_paper("tabloid", 34, 17, 11);
  78   add_american_paper("ledger", 35, 11, 17);
  79   add_american_paper("statement", 36, 8.5, 5.5);
  80   add_american_paper("executive", 37, 10, 7.5);
  81   // the next three entries are for grolj4
  82   add_american_paper("com10", 38, 9.5, 4.125);
  83   add_american_paper("monarch", 39, 7.5, 3.875);
  84   // this is an ISO format, but it easier to use add_american_paper
  85   add_american_paper("dl", 40, 220/25.4, 110/25.4);
  86 }