1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
/*
This file is part of anastasis-gtk.
Copyright (C) 2021 Anastasis SARL
Anastasis is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 3, or (at your
option) any later version.
Anastasis is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with Anastasis; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
/**
* @file src/anastasis/print.c
* @brief Printing helper.
* @author Christian Grothoff
*/
#include <gnunet/platform.h>
#include <setjmp.h>
#include <hpdf.h>
#include <gnunet/gnunet_util_lib.h>
#include "print.h"
static jmp_buf env;
static void
error_handler (HPDF_STATUS error_no,
HPDF_STATUS detail_no,
void *user_data)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"error_no=%04X, detail_no=%u\n",
(HPDF_UINT) error_no,
(HPDF_UINT) detail_no);
longjmp (env,
1);
}
int
AG_print (json_t *user,
const char *fname)
{
const char *page_title = "GNU Anastasis Identity Sheet";
const char *type;
json_t *jvalue;
HPDF_Doc pdf;
HPDF_Font font;
HPDF_Page page;
float tw;
float fsize;
pdf = HPDF_New (error_handler, NULL);
if (! pdf)
{
printf ("error: cannot create PdfDoc object\n");
return 1;
}
if (setjmp (env))
{
HPDF_Free (pdf);
return 1;
}
/* set compression mode */
HPDF_SetCompressionMode (pdf,
HPDF_COMP_ALL);
/* create default-font */
font = HPDF_GetFont (pdf,
"Helvetica",
NULL);
/* add a new page object. */
page = HPDF_AddPage (pdf);
/* print the lines of the page. */
HPDF_Page_SetLineWidth (page, 1);
HPDF_Page_Rectangle (page,
50, 50,
HPDF_Page_GetWidth (page) - 100,
HPDF_Page_GetHeight (page) - 110);
HPDF_Page_Stroke (page);
/* print the title of the page (with positioning center). */
HPDF_Page_SetFontAndSize (page,
font,
24);
tw = HPDF_Page_TextWidth (page,
page_title);
HPDF_Page_BeginText (page);
HPDF_Page_TextOut (page,
(HPDF_Page_GetWidth (page) - tw) / 2,
HPDF_Page_GetHeight (page) - 50,
page_title);
HPDF_Page_EndText (page);
HPDF_Page_BeginText (page);
HPDF_Page_MoveTextPos (page, 60, HPDF_Page_GetHeight (page) - 60);
/*
* font size
*/
fsize = 18;
json_object_foreach (user, type, jvalue)
{
char *val;
int len;
/* print the description. */
HPDF_Page_MoveTextPos (page, 0, -12);
HPDF_Page_SetFontAndSize (page, font, 10);
HPDF_Page_ShowText (page, type);
/* set the position of the text. */
HPDF_Page_MoveTextPos (page, 10, -5 - fsize);
val = GNUNET_strdup (json_string_value (jvalue));
do {
/* set style and size of font. */
HPDF_Page_SetFontAndSize (page, font, fsize);
/* measure the number of characters which included in the page. */
len = HPDF_Page_MeasureText (page,
val,
HPDF_Page_GetWidth (page) - 130,
HPDF_FALSE,
NULL);
if ( (len < strlen (val)) &&
(fsize > 10) )
fsize--;
else
break;
} while (1);
/* truncate the text. */
val[len] = 0x00;
HPDF_Page_ShowText (page, val);
GNUNET_free (val);
HPDF_Page_MoveTextPos (page, -10, -25 - fsize);
}
HPDF_Page_EndText (page);
/* save the document to a file */
HPDF_SaveToFile (pdf, fname);
/* clean up */
HPDF_Free (pdf);
return 0;
}
|
