2 * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
4 * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net>
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.
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.
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
26 #include "vikwaypoint.h"
28 #include "garminsymbols.h"
29 #include <glib/gi18n.h>
31 VikWaypoint *vik_waypoint_new()
33 VikWaypoint *wp = g_malloc0 ( sizeof ( VikWaypoint ) );
34 wp->altitude = VIK_DEFAULT_ALTITUDE;
35 wp->name = g_strdup(_("Waypoint"));
39 // Hmmm tempted to put in new constructor
40 void vik_waypoint_set_name(VikWaypoint *wp, const gchar *name)
45 if ( name && name[0] != '\0' )
46 wp->name = g_strdup(name);
51 void vik_waypoint_set_comment_no_copy(VikWaypoint *wp, gchar *comment)
54 g_free ( wp->comment );
55 wp->comment = comment;
58 void vik_waypoint_set_comment(VikWaypoint *wp, const gchar *comment)
61 g_free ( wp->comment );
63 if ( comment && comment[0] != '\0' )
64 wp->comment = g_strdup(comment);
69 void vik_waypoint_set_description(VikWaypoint *wp, const gchar *description)
71 if ( wp->description )
72 g_free ( wp->description );
74 if ( description && description[0] != '\0' )
75 wp->description = g_strdup(description);
77 wp->description = NULL;
80 void vik_waypoint_set_image(VikWaypoint *wp, const gchar *image)
85 if ( image && image[0] != '\0' )
86 wp->image = g_strdup(image);
89 // NOTE - ATM the image (thumbnail) size is calculated on demand when needed to be first drawn
92 void vik_waypoint_set_symbol(VikWaypoint *wp, const gchar *symname)
95 g_free ( wp->symbol );
97 // NB symbol_pixbuf is just a reference, so no need to free it
99 if ( symname && symname[0] != '\0' ) {
100 wp->symbol = g_strdup(symname);
101 wp->symbol_pixbuf = a_get_wp_sym ( wp->symbol );
105 wp->symbol_pixbuf = NULL;
109 void vik_waypoint_free(VikWaypoint *wp)
112 g_free ( wp->comment );
113 if ( wp->description )
114 g_free ( wp->description );
116 g_free ( wp->image );
118 g_free ( wp->symbol );
122 VikWaypoint *vik_waypoint_copy(const VikWaypoint *wp)
124 VikWaypoint *new_wp = vik_waypoint_new();
125 new_wp->coord = wp->coord;
126 new_wp->visible = wp->visible;
127 new_wp->altitude = wp->altitude;
128 vik_waypoint_set_name(new_wp,wp->name);
129 vik_waypoint_set_comment(new_wp,wp->comment);
130 vik_waypoint_set_description(new_wp,wp->description);
131 vik_waypoint_set_image(new_wp,wp->image);
132 vik_waypoint_set_symbol(new_wp,wp->symbol);
137 * Take a Waypoint and convert it into a byte array
139 void vik_waypoint_marshall ( VikWaypoint *wp, guint8 **data, guint *datalen)
141 GByteArray *b = g_byte_array_new();
144 // This creates space for fixed sized members like gints and whatnot
145 // and copies that amount of data from the waypoint to byte array
146 g_byte_array_append(b, (guint8 *)wp, sizeof(*wp));
148 // This allocates space for variant sized strings
149 // and copies that amount of data from the waypoint to byte array
150 #define vwm_append(s) \
151 len = (s) ? strlen(s)+1 : 0; \
152 g_byte_array_append(b, (guint8 *)&len, sizeof(len)); \
153 if (s) g_byte_array_append(b, (guint8 *)s, len);
155 vwm_append(wp->name);
156 vwm_append(wp->comment);
157 vwm_append(wp->description);
158 vwm_append(wp->image);
159 vwm_append(wp->symbol);
163 g_byte_array_free(b, FALSE);
168 * Take a byte array and convert it into a Waypoint
170 VikWaypoint *vik_waypoint_unmarshall (guint8 *data, guint datalen)
173 VikWaypoint *new_wp = vik_waypoint_new();
174 // This copies the fixed sized elements (i.e. visibility, altitude, image_width, etc...)
175 memcpy(new_wp, data, sizeof(*new_wp));
176 data += sizeof(*new_wp);
178 // Now the variant sized strings...
180 len = *(guint *)data; \
181 data += sizeof(len); \
183 (s) = g_strdup((gchar *)data); \
189 vwu_get(new_wp->name);
190 vwu_get(new_wp->comment);
191 vwu_get(new_wp->description);
192 vwu_get(new_wp->image);
193 vwu_get(new_wp->symbol);