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50a14534 EB |
1 | /* |
2 | * viking -- GPS Data and Topo Analyzer, Explorer, and Manager | |
3 | * | |
4 | * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | * | |
20 | */ | |
21 | ||
22 | #include <glib.h> | |
ddc47a46 | 23 | #include <string.h> |
50a14534 EB |
24 | #include "coords.h" |
25 | #include "vikcoord.h" | |
26 | #include "vikwaypoint.h" | |
27 | ||
acaf7113 | 28 | |
50a14534 EB |
29 | VikWaypoint *vik_waypoint_new() |
30 | { | |
31 | VikWaypoint *wp = g_malloc ( sizeof ( VikWaypoint ) ); | |
32 | wp->comment = NULL; | |
33 | wp->image = NULL; | |
acaf7113 | 34 | wp->symbol = NULL; |
50a14534 EB |
35 | return wp; |
36 | } | |
37 | ||
38 | void vik_waypoint_set_comment_no_copy(VikWaypoint *wp, gchar *comment) | |
39 | { | |
40 | if ( wp->comment ) | |
41 | g_free ( wp->comment ); | |
42 | wp->comment = comment; | |
43 | } | |
44 | ||
45 | void vik_waypoint_set_comment(VikWaypoint *wp, const gchar *comment) | |
46 | { | |
47 | if ( wp->comment ) | |
48 | g_free ( wp->comment ); | |
49 | ||
50 | if ( comment && comment[0] != '\0' ) | |
51 | wp->comment = g_strdup(comment); | |
52 | else | |
53 | wp->comment = NULL; | |
54 | } | |
55 | ||
56 | void vik_waypoint_set_image(VikWaypoint *wp, const gchar *image) | |
57 | { | |
58 | if ( wp->image ) | |
59 | g_free ( wp->image ); | |
60 | ||
61 | if ( image && image[0] != '\0' ) | |
62 | wp->image = g_strdup(image); | |
63 | else | |
64 | wp->image = NULL; | |
65 | } | |
66 | ||
acaf7113 AF |
67 | void vik_waypoint_set_symbol(VikWaypoint *wp, const gchar *symname) |
68 | { | |
69 | if ( wp->symbol ) | |
70 | g_free ( wp->symbol ); | |
71 | ||
72 | if ( symname && symname[0] != '\0' ) | |
73 | wp->symbol = g_strdup(symname); | |
74 | else | |
75 | wp->symbol = NULL; | |
76 | } | |
77 | ||
50a14534 EB |
78 | void vik_waypoint_free(VikWaypoint *wp) |
79 | { | |
80 | if ( wp->comment ) | |
81 | g_free ( wp->comment ); | |
82 | if ( wp->image ) | |
83 | g_free ( wp->image ); | |
acaf7113 AF |
84 | if ( wp->symbol ) |
85 | g_free ( wp->symbol ); | |
50a14534 EB |
86 | g_free ( wp ); |
87 | } | |
88 | ||
89 | VikWaypoint *vik_waypoint_copy(const VikWaypoint *wp) | |
90 | { | |
91 | VikWaypoint *new_wp = vik_waypoint_new(); | |
92 | *new_wp = *wp; | |
93 | new_wp->comment = NULL; /* if the waypoint had a comment, FOR CRYING OUT LOUD DON'T FREE IT! This lousy bug took me TWO HOURS to figure out... sigh... */ | |
94 | vik_waypoint_set_comment(new_wp,wp->comment); | |
95 | new_wp->image = NULL; | |
96 | vik_waypoint_set_image(new_wp,wp->image); | |
acaf7113 AF |
97 | new_wp->symbol = NULL; |
98 | vik_waypoint_set_symbol(new_wp,wp->symbol); | |
50a14534 EB |
99 | return new_wp; |
100 | } | |
acaf7113 | 101 | |
ddc47a46 AF |
102 | void vik_waypoint_marshall ( VikWaypoint *wp, guint8 **data, guint *datalen) |
103 | { | |
104 | GByteArray *b = g_byte_array_new(); | |
105 | guint len; | |
106 | ||
107 | g_byte_array_append(b, (guint8 *)wp, sizeof(*wp)); | |
108 | ||
109 | #define vwm_append(s) \ | |
110 | len = (s) ? strlen(s)+1 : 0; \ | |
111 | g_byte_array_append(b, (guint8 *)&len, sizeof(len)); \ | |
112 | if (s) g_byte_array_append(b, (guint8 *)s, len); | |
113 | ||
114 | vwm_append(wp->comment); | |
115 | vwm_append(wp->image); | |
116 | vwm_append(wp->symbol); | |
117 | ||
118 | *data = b->data; | |
119 | *datalen = b->len; | |
120 | g_byte_array_free(b, FALSE); | |
121 | #undef vwm_append | |
122 | } | |
123 | ||
124 | VikWaypoint *vik_waypoint_unmarshall (guint8 *data, guint datalen) | |
125 | { | |
126 | guint len; | |
127 | VikWaypoint *new_wp = vik_waypoint_new(); | |
128 | memcpy(new_wp, data, sizeof(*new_wp)); | |
129 | data += sizeof(*new_wp); | |
130 | ||
131 | #define vwu_get(s) \ | |
132 | len = *(guint *)data; \ | |
133 | data += sizeof(len); \ | |
134 | if (len) { \ | |
135 | (s) = g_strdup((gchar *)data); \ | |
136 | } else { \ | |
137 | (s) = NULL; \ | |
138 | } \ | |
139 | data += len; | |
140 | ||
141 | vwu_get(new_wp->comment); | |
142 | vwu_get(new_wp->image); | |
143 | vwu_get(new_wp->symbol); | |
144 | ||
145 | return new_wp; | |
146 | #undef vwu_get | |
147 | } | |
148 |