src/output/page-setup.c

   1 /* PSPP - a program for statistical analysis.
   2    Copyright (C) 2018 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation, either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
  16
  17 #include <config.h>
  18
  19 #include "output/page-setup.h"
  20
  21 #include <stdlib.h>
  22 #include <string.h>
  23
  24 #include "output/options.h"
  25
  26 #include "gl/xalloc.h"
  27
  28 bool
  29 page_paragraph_equals (const struct page_paragraph *a,
  30                        const struct page_paragraph *b)
  31 {
  32   return (!a || !b ? a == b
  33           : !a->markup || !b->markup ? a->markup == b->markup
  34           : !strcmp (a->markup, b->markup) && a->halign == b->halign);
  35 }
  36
  37 void
  38 page_heading_copy (struct page_heading *dst, const struct page_heading *src)
  39 {
  40   dst->n = src->n;
  41   dst->paragraphs = xmalloc (dst->n * sizeof *dst->paragraphs);
  42   for (size_t i = 0; i < dst->n; i++)
  43     {
  44       dst->paragraphs[i].markup = xstrdup (src->paragraphs[i].markup);
  45       dst->paragraphs[i].halign = src->paragraphs[i].halign;
  46     }
  47 }
  48
  49 void
  50 page_heading_uninit (struct page_heading *ph)
  51 {
  52   if (!ph)
  53     return;
  54
  55   for (size_t i = 0; i < ph->n; i++)
  56     free (ph->paragraphs[i].markup);
  57   free (ph->paragraphs);
  58 }
  59
  60 bool
  61 page_heading_equals (const struct page_heading *a,
  62                      const struct page_heading *b)
  63 {
  64   if (!a || !b)
  65     return a == b;
  66
  67   if (a->n != b->n)
  68     return false;
  69
  70   for (size_t i = 0; i < a->n; i++)
  71     if (!page_paragraph_equals (&a->paragraphs[i], &b->paragraphs[i]))
  72       return false;
  73
  74   return true;
  75 }
  76
  77 struct page_setup *
  78 page_setup_clone (const struct page_setup *old)
  79 {
  80   struct page_setup *new = xmalloc (sizeof *new);
  81   *new = *old;
  82   for (int i = 0; i < 2; i++)
  83     page_heading_copy (&new->headings[i], &old->headings[i]);
  84   if (new->file_name)
  85     new->file_name = xstrdup (new->file_name);
  86   return new;
  87 }
  88
  89 void
  90 page_setup_destroy (struct page_setup *ps)
  91 {
  92   if (ps)
  93     {
  94       for (int i = 0; i < 2; i++)
  95         page_heading_uninit (&ps->headings[i]);
  96       free (ps->file_name);
  97       free (ps);
  98     }
  99 }
 100
 101 static struct driver_option
 102 opt (struct driver_options *options, const char *key, const char *default_value)
 103 {
 104   return driver_option_get (options, key, default_value);
 105 }
 106
 107 struct page_setup *
 108 page_setup_parse (struct driver_options *o)
 109 {
 110   struct page_setup *ps = xmalloc (sizeof *ps);
 111   *ps = (struct page_setup) PAGE_SETUP_INITIALIZER;
 112
 113   enum { H = TABLE_HORZ, V = TABLE_VERT };
 114   parse_paper_size (opt (o, "paper-size", ""), &ps->paper[H], &ps->paper[V]);
 115
 116   ps->margins[H][0] = parse_dimension (opt (o, "left-margin", ".5in"));
 117   ps->margins[H][1] = parse_dimension (opt (o, "right-margin", ".5in"));
 118   ps->margins[V][0] = parse_dimension (opt (o, "top-margin", ".5in"));
 119   ps->margins[V][1] = parse_dimension (opt (o, "bottom-margin", ".5in"));
 120
 121   ps->object_spacing = parse_dimension (opt (o, "object-spacing", NULL));
 122   if (ps->object_spacing <= 0)
 123     ps->object_spacing = 12.0 / 72.0;
 124
 125   return ps;
 126 }