src/lib-roff/paper.cpp

   1 /*@
   2  * Copyright (c) 2014 - 2015 Steffen (Daode) Nurpmeso <sdaoden@users.sf.net>.
   3  *
   4  * Copyright (C) 2002 - 2004
   5  *    Free Software Foundation, Inc.
   6  *      Written by Werner Lemberg (wl@gnu.org)
   7  *
   8  * This is free software; you can redistribute it and/or modify it under
   9  * the terms of the GNU General Public License as published by the Free
  10  * Software Foundation; either version 2, or (at your option) any later
  11  * version.
  12  *
  13  * This is distributed in the hope that it will be useful, but WITHOUT ANY
  14  * WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  16  * for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along
  19  * with groff; see the file COPYING.  If not, write to the Free Software
  20  * Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA.
  21  */
  22
  23 #include "config.h"
  24 #include "lib.h"
  25
  26 #include "paper.h"
  27
  28 paper papersizes[NUM_PAPERSIZES];
  29
  30 // length and width in mm
  31 static void add_iso_paper(char series, int offset,
  32                           int start_length, int start_width)
  33 {
  34   int length = start_length;
  35   int width = start_width;
  36   for (int i = 0; i < 8; i++)
  37   {
  38     char *p = new char[3];
  39     p[0] = series;
  40     p[1] = '0' + i;
  41     p[2] = '\0';
  42     papersizes[offset + i].name = p;
  43     // convert mm to inch
  44     papersizes[offset + i].length = (double)length / 25.4;
  45     papersizes[offset + i].width = (double)width / 25.4;
  46     // after division by two, values must be rounded down to the next
  47     // integer (as specified by ISO)
  48     int tmp = length;
  49     length = width;
  50     width = tmp / 2;
  51   }
  52 }
  53
  54 // length and width in inch
  55 static void add_american_paper(const char *name, int idx,
  56                                double length, double width )
  57 {
  58   char *p = new char[strlen(name) + 1];
  59   strcpy(p, name);
  60   papersizes[idx].name = p;
  61   papersizes[idx].length = length;
  62   papersizes[idx].width = width;
  63 }
  64
  65 int papersize_init::initialised = 0;
  66
  67 papersize_init::papersize_init()
  68 {
  69   if (initialised)
  70     return;
  71   initialised = 1;
  72   add_iso_paper('a', 0, 1189, 841);
  73   add_iso_paper('b', 8, 1414, 1000);
  74   add_iso_paper('c', 16, 1297, 917);
  75   add_iso_paper('d', 24, 1090, 771);
  76   add_american_paper("letter", 32, 11, 8.5);
  77   add_american_paper("legal", 33, 14, 8.5);
  78   add_american_paper("tabloid", 34, 17, 11);
  79   add_american_paper("ledger", 35, 11, 17);
  80   add_american_paper("statement", 36, 8.5, 5.5);
  81   add_american_paper("executive", 37, 10, 7.5);
  82 }
  83
  84 // s-it2-mode