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1 | /* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*- */ | |
2 | /* | |
3 | * viking -- GPS Data and Topo Analyzer, Explorer, and Manager | |
4 | * | |
5 | * Copyright (C) 2014, Rob Norris <rw_norris@hotmail.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU Format Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU Format Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU Format Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | * | |
21 | */ | |
22 | ||
23 | #ifdef HAVE_CONFIG_H | |
24 | #include "config.h" | |
25 | #endif | |
26 | ||
27 | #include "vikwebtoolformat.h" | |
28 | ||
29 | #include <string.h> | |
30 | #include <glib.h> | |
31 | ||
32 | #include "util.h" | |
33 | #include "globals.h" | |
34 | #include "maputils.h" | |
35 | ||
36 | static GObjectClass *parent_class; | |
37 | ||
38 | static void webtool_format_finalize ( GObject *gob ); | |
39 | ||
40 | static guint8 webtool_format_mpp_to_zoom ( VikWebtool *self, gdouble mpp ); | |
41 | static gchar *webtool_format_get_url ( VikWebtool *vw, VikWindow *vwindow ); | |
42 | ||
43 | typedef struct _VikWebtoolFormatPrivate VikWebtoolFormatPrivate; | |
44 | ||
45 | struct _VikWebtoolFormatPrivate | |
46 | { | |
47 | gchar *url; | |
48 | gchar *url_format_code; | |
49 | }; | |
50 | ||
51 | #define WEBTOOL_FORMAT_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), \ | |
52 | VIK_WEBTOOL_FORMAT_TYPE, \ | |
53 | VikWebtoolFormatPrivate)) | |
54 | ||
55 | G_DEFINE_TYPE (VikWebtoolFormat, vik_webtool_format, VIK_WEBTOOL_TYPE) | |
56 | ||
57 | enum | |
58 | { | |
59 | PROP_0, | |
60 | ||
61 | PROP_URL, | |
62 | PROP_URL_FORMAT_CODE, | |
63 | }; | |
64 | ||
65 | static void | |
66 | webtool_format_set_property (GObject *object, | |
67 | guint property_id, | |
68 | const GValue *value, | |
69 | GParamSpec *pspec) | |
70 | { | |
71 | VikWebtoolFormat *self = VIK_WEBTOOL_FORMAT (object); | |
72 | VikWebtoolFormatPrivate *priv = WEBTOOL_FORMAT_GET_PRIVATE (self); | |
73 | ||
74 | switch (property_id) { | |
75 | case PROP_URL: | |
76 | g_free (priv->url); | |
77 | priv->url = g_value_dup_string (value); | |
78 | g_debug ("VikWebtoolFormat.url: %s", priv->url); | |
79 | break; | |
80 | case PROP_URL_FORMAT_CODE: | |
81 | g_free ( priv->url_format_code ); | |
82 | priv->url_format_code = g_value_dup_string ( value ); | |
83 | g_debug ( "VikWebtoolFormat.url_format_code: %s", priv->url_format_code ); | |
84 | break; | |
85 | ||
86 | default: | |
87 | /* We don't have any other property... */ | |
88 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); | |
89 | break; | |
90 | } | |
91 | } | |
92 | ||
93 | static void | |
94 | webtool_format_get_property (GObject *object, | |
95 | guint property_id, | |
96 | GValue *value, | |
97 | GParamSpec *pspec) | |
98 | { | |
99 | VikWebtoolFormat *self = VIK_WEBTOOL_FORMAT (object); | |
100 | VikWebtoolFormatPrivate *priv = WEBTOOL_FORMAT_GET_PRIVATE (self); | |
101 | ||
102 | switch (property_id) { | |
103 | case PROP_URL: | |
104 | g_value_set_string (value, priv->url); | |
105 | break; | |
106 | ||
107 | case PROP_URL_FORMAT_CODE: | |
108 | g_value_set_string ( value, priv->url_format_code ); | |
109 | break; | |
110 | ||
111 | default: | |
112 | /* We don't have any other property... */ | |
113 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); | |
114 | break; | |
115 | } | |
116 | } | |
117 | ||
118 | static void | |
119 | vik_webtool_format_class_init ( VikWebtoolFormatClass *klass ) | |
120 | { | |
121 | GObjectClass *gobject_class; | |
122 | VikWebtoolClass *base_class; | |
123 | GParamSpec *pspec; | |
124 | ||
125 | gobject_class = G_OBJECT_CLASS (klass); | |
126 | ||
127 | gobject_class->finalize = webtool_format_finalize; | |
128 | gobject_class->set_property = webtool_format_set_property; | |
129 | gobject_class->get_property = webtool_format_get_property; | |
130 | ||
131 | pspec = g_param_spec_string ("url", | |
132 | "Template Url", | |
133 | "Set the template url", | |
134 | VIKING_URL /* default value */, | |
135 | G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE); | |
136 | g_object_class_install_property (gobject_class, | |
137 | PROP_URL, | |
138 | pspec); | |
139 | ||
140 | pspec = g_param_spec_string ("url_format_code", | |
141 | "Template URL Format Code", | |
142 | "Set the template URL format code", | |
143 | "AOZ", // default value Lat, Long, Zoom | |
144 | G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE); | |
145 | g_object_class_install_property (gobject_class, | |
146 | PROP_URL_FORMAT_CODE, | |
147 | pspec); | |
148 | ||
149 | parent_class = g_type_class_peek_parent (klass); | |
150 | ||
151 | base_class = VIK_WEBTOOL_CLASS ( klass ); | |
152 | base_class->get_url = webtool_format_get_url; | |
153 | ||
154 | klass->mpp_to_zoom = webtool_format_mpp_to_zoom; | |
155 | ||
156 | g_type_class_add_private (klass, sizeof (VikWebtoolFormatPrivate)); | |
157 | } | |
158 | ||
159 | VikWebtoolFormat *vik_webtool_format_new () | |
160 | { | |
161 | return VIK_WEBTOOL_FORMAT ( g_object_new ( VIK_WEBTOOL_FORMAT_TYPE, NULL ) ); | |
162 | } | |
163 | ||
164 | VikWebtoolFormat *vik_webtool_format_new_with_members ( const gchar *label, | |
165 | const gchar *url, | |
166 | const gchar *url_format_code ) | |
167 | { | |
168 | VikWebtoolFormat *result = VIK_WEBTOOL_FORMAT ( g_object_new ( VIK_WEBTOOL_FORMAT_TYPE, | |
169 | "label", label, | |
170 | "url", url, | |
171 | "url_format_code", url_format_code, | |
172 | NULL ) ); | |
173 | ||
174 | return result; | |
175 | } | |
176 | ||
177 | static void | |
178 | vik_webtool_format_init ( VikWebtoolFormat *self ) | |
179 | { | |
180 | VikWebtoolFormatPrivate *priv = WEBTOOL_FORMAT_GET_PRIVATE (self); | |
181 | priv->url = NULL; | |
182 | priv->url_format_code = NULL; | |
183 | } | |
184 | ||
185 | static void webtool_format_finalize ( GObject *gob ) | |
186 | { | |
187 | VikWebtoolFormatPrivate *priv = WEBTOOL_FORMAT_GET_PRIVATE ( gob ); | |
188 | g_free ( priv->url ); priv->url = NULL; | |
189 | g_free ( priv->url_format_code ); priv->url_format_code = NULL; | |
190 | G_OBJECT_CLASS(parent_class)->finalize(gob); | |
191 | } | |
192 | ||
193 | static guint8 webtool_format_mpp_to_zoom ( VikWebtool *self, gdouble mpp ) { | |
194 | return map_utils_mpp_to_zoom_level ( mpp ); | |
195 | } | |
196 | ||
197 | #define MAX_NUMBER_CODES 7 | |
198 | ||
199 | static gchar *webtool_format_get_url ( VikWebtool *self, VikWindow *vw ) | |
200 | { | |
201 | VikWebtoolFormatPrivate *priv = NULL; | |
202 | priv = WEBTOOL_FORMAT_GET_PRIVATE (self); | |
203 | ||
204 | VikViewport *viewport = vik_window_viewport ( vw ); | |
205 | ||
206 | // Get top left and bottom right lat/lon pairs from the viewport | |
207 | gdouble min_lat, max_lat, min_lon, max_lon; | |
208 | gchar sminlon[G_ASCII_DTOSTR_BUF_SIZE]; | |
209 | gchar smaxlon[G_ASCII_DTOSTR_BUF_SIZE]; | |
210 | gchar sminlat[G_ASCII_DTOSTR_BUF_SIZE]; | |
211 | gchar smaxlat[G_ASCII_DTOSTR_BUF_SIZE]; | |
212 | vik_viewport_get_min_max_lat_lon ( viewport, &min_lat, &max_lat, &min_lon, &max_lon ); | |
213 | ||
214 | // Cannot simply use g_strdup_printf and gdouble due to locale. | |
215 | // As we compute an URL, we have to think in C locale. | |
216 | g_ascii_dtostr (sminlon, G_ASCII_DTOSTR_BUF_SIZE, min_lon); | |
217 | g_ascii_dtostr (smaxlon, G_ASCII_DTOSTR_BUF_SIZE, max_lon); | |
218 | g_ascii_dtostr (sminlat, G_ASCII_DTOSTR_BUF_SIZE, min_lat); | |
219 | g_ascii_dtostr (smaxlat, G_ASCII_DTOSTR_BUF_SIZE, max_lat); | |
220 | ||
221 | // Center values | |
222 | const VikCoord *coord = vik_viewport_get_center ( viewport ); | |
223 | struct LatLon ll; | |
224 | vik_coord_to_latlon ( coord, &ll ); | |
225 | ||
226 | gchar scenterlat[G_ASCII_DTOSTR_BUF_SIZE]; | |
227 | gchar scenterlon[G_ASCII_DTOSTR_BUF_SIZE]; | |
228 | g_ascii_dtostr (scenterlat, G_ASCII_DTOSTR_BUF_SIZE, ll.lat); | |
229 | g_ascii_dtostr (scenterlon, G_ASCII_DTOSTR_BUF_SIZE, ll.lon); | |
230 | ||
231 | guint8 zoom = 17; // A zoomed in default | |
232 | // zoom - ideally x & y factors need to be the same otherwise use the default | |
233 | if ( vik_viewport_get_xmpp ( viewport ) == vik_viewport_get_ympp ( viewport ) ) | |
234 | zoom = map_utils_mpp_to_zoom_level ( vik_viewport_get_zoom ( viewport ) ); | |
235 | ||
236 | gchar szoom[G_ASCII_DTOSTR_BUF_SIZE]; | |
237 | g_snprintf ( szoom, G_ASCII_DTOSTR_BUF_SIZE, "%d", zoom ); | |
238 | ||
239 | gint len = 0; | |
240 | if ( priv->url_format_code ) | |
241 | len = strlen ( priv->url_format_code ); | |
242 | if ( len > MAX_NUMBER_CODES ) | |
243 | len = MAX_NUMBER_CODES; | |
244 | ||
245 | gchar* values[MAX_NUMBER_CODES]; | |
246 | int i; | |
247 | for ( i = 0; i < MAX_NUMBER_CODES; i++ ) { | |
248 | values[i] = '\0'; | |
249 | } | |
250 | ||
251 | for ( i = 0; i < len; i++ ) { | |
252 | switch ( g_ascii_toupper ( priv->url_format_code[i] ) ) { | |
253 | case 'L': values[i] = g_strdup ( sminlon ); break; | |
254 | case 'R': values[i] = g_strdup ( smaxlon ); break; | |
255 | case 'B': values[i] = g_strdup ( sminlat ); break; | |
256 | case 'T': values[i] = g_strdup ( smaxlat ); break; | |
257 | case 'A': values[i] = g_strdup ( scenterlat ); break; | |
258 | case 'O': values[i] = g_strdup ( scenterlon ); break; | |
259 | case 'Z': values[i] = g_strdup ( szoom ); break; | |
260 | default: break; | |
261 | } | |
262 | } | |
263 | ||
264 | gchar *url = g_strdup_printf ( priv->url, values[0], values[1], values[2], values[3], values[4], values[5], values[6] ); | |
265 | ||
266 | for ( i = 0; i < MAX_NUMBER_CODES; i++ ) { | |
267 | if ( values[i] != '\0' ) | |
268 | g_free ( values[i] ); | |
269 | } | |
270 | ||
271 | g_debug ("%s %s", __FUNCTION__, url); | |
272 | return url; | |
273 | } | |
274 | ||
275 | guint8 vik_webtool_format_mpp_to_zoom (VikWebtool *self, gdouble mpp) | |
276 | { | |
277 | return VIK_WEBTOOL_FORMAT_GET_CLASS( self )->mpp_to_zoom( self, mpp ); | |
278 | } |