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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) 2011-2015, 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 General 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 General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General 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 "vikwebtoolbounds.h" | |
28 | ||
29 | #include <string.h> | |
30 | ||
31 | #include <glib.h> | |
32 | #include <glib/gi18n.h> | |
33 | ||
34 | #include "globals.h" | |
35 | ||
36 | static GObjectClass *parent_class; | |
37 | ||
38 | static void webtool_bounds_finalize ( GObject *gob ); | |
39 | static gchar *webtool_bounds_get_url ( VikWebtool *vw, VikWindow *vwindow ); | |
40 | static gchar *webtool_bounds_get_url_at_position ( VikWebtool *vw, VikWindow *vwindow, VikCoord *vc ); | |
41 | ||
42 | typedef struct _VikWebtoolBoundsPrivate VikWebtoolBoundsPrivate; | |
43 | ||
44 | struct _VikWebtoolBoundsPrivate | |
45 | { | |
46 | gchar *url; | |
47 | }; | |
48 | ||
49 | #define WEBTOOL_BOUNDS_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), \ | |
50 | VIK_WEBTOOL_BOUNDS_TYPE, \ | |
51 | VikWebtoolBoundsPrivate)) | |
52 | ||
53 | G_DEFINE_TYPE (VikWebtoolBounds, vik_webtool_bounds, VIK_WEBTOOL_TYPE) | |
54 | ||
55 | enum | |
56 | { | |
57 | PROP_0, | |
58 | ||
59 | PROP_URL, | |
60 | }; | |
61 | ||
62 | static void | |
63 | webtool_bounds_set_property (GObject *object, | |
64 | guint property_id, | |
65 | const GValue *value, | |
66 | GParamSpec *pspec) | |
67 | { | |
68 | VikWebtoolBounds *self = VIK_WEBTOOL_BOUNDS (object); | |
69 | VikWebtoolBoundsPrivate *priv = WEBTOOL_BOUNDS_GET_PRIVATE (self); | |
70 | ||
71 | switch (property_id) | |
72 | { | |
73 | case PROP_URL: | |
74 | g_free (priv->url); | |
75 | priv->url = g_value_dup_string (value); | |
76 | g_debug ("VikWebtoolBounds.url: %s", priv->url); | |
77 | break; | |
78 | ||
79 | default: | |
80 | /* We don't have any other property... */ | |
81 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); | |
82 | break; | |
83 | } | |
84 | } | |
85 | ||
86 | static void | |
87 | webtool_bounds_get_property (GObject *object, | |
88 | guint property_id, | |
89 | GValue *value, | |
90 | GParamSpec *pspec) | |
91 | { | |
92 | VikWebtoolBounds *self = VIK_WEBTOOL_BOUNDS (object); | |
93 | VikWebtoolBoundsPrivate *priv = WEBTOOL_BOUNDS_GET_PRIVATE (self); | |
94 | ||
95 | switch (property_id) | |
96 | { | |
97 | case PROP_URL: | |
98 | g_value_set_string (value, priv->url); | |
99 | break; | |
100 | ||
101 | default: | |
102 | /* We don't have any other property... */ | |
103 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); | |
104 | break; | |
105 | } | |
106 | } | |
107 | ||
108 | static void | |
109 | vik_webtool_bounds_class_init ( VikWebtoolBoundsClass *klass ) | |
110 | { | |
111 | GObjectClass *gobject_class; | |
112 | VikWebtoolClass *base_class; | |
113 | GParamSpec *pspec; | |
114 | ||
115 | gobject_class = G_OBJECT_CLASS (klass); | |
116 | ||
117 | gobject_class->finalize = webtool_bounds_finalize; | |
118 | gobject_class->set_property = webtool_bounds_set_property; | |
119 | gobject_class->get_property = webtool_bounds_get_property; | |
120 | ||
121 | pspec = g_param_spec_string ("url", | |
122 | "Template Url", | |
123 | "Set the template url", | |
124 | VIKING_URL /* default value */, | |
125 | G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE); | |
126 | g_object_class_install_property (gobject_class, | |
127 | PROP_URL, | |
128 | pspec); | |
129 | ||
130 | parent_class = g_type_class_peek_parent (klass); | |
131 | ||
132 | base_class = VIK_WEBTOOL_CLASS ( klass ); | |
133 | base_class->get_url = webtool_bounds_get_url; | |
134 | base_class->get_url_at_position = webtool_bounds_get_url_at_position; | |
135 | ||
136 | g_type_class_add_private (klass, sizeof (VikWebtoolBoundsPrivate)); | |
137 | } | |
138 | ||
139 | VikWebtoolBounds *vik_webtool_bounds_new () | |
140 | { | |
141 | return VIK_WEBTOOL_BOUNDS ( g_object_new ( VIK_WEBTOOL_BOUNDS_TYPE, NULL ) ); | |
142 | } | |
143 | ||
144 | VikWebtoolBounds *vik_webtool_bounds_new_with_members ( const gchar *label, const gchar *url ) | |
145 | { | |
146 | VikWebtoolBounds *result = VIK_WEBTOOL_BOUNDS ( g_object_new ( VIK_WEBTOOL_BOUNDS_TYPE, | |
147 | "label", label, | |
148 | "url", url, | |
149 | NULL ) ); | |
150 | ||
151 | return result; | |
152 | } | |
153 | ||
154 | static void | |
155 | vik_webtool_bounds_init ( VikWebtoolBounds *self ) | |
156 | { | |
157 | VikWebtoolBoundsPrivate *priv = WEBTOOL_BOUNDS_GET_PRIVATE (self); | |
158 | priv->url = NULL; | |
159 | } | |
160 | ||
161 | static void webtool_bounds_finalize ( GObject *gob ) | |
162 | { | |
163 | VikWebtoolBoundsPrivate *priv = WEBTOOL_BOUNDS_GET_PRIVATE ( gob ); | |
164 | g_free ( priv->url ); priv->url = NULL; | |
165 | G_OBJECT_CLASS(parent_class)->finalize(gob); | |
166 | } | |
167 | ||
168 | static gchar *webtool_bounds_get_url ( VikWebtool *self, VikWindow *vwindow ) | |
169 | { | |
170 | VikWebtoolBoundsPrivate *priv = NULL; | |
171 | VikViewport *viewport = NULL; | |
172 | ||
173 | priv = WEBTOOL_BOUNDS_GET_PRIVATE (self); | |
174 | viewport = vik_window_viewport ( vwindow ); | |
175 | ||
176 | // Get top left and bottom right lat/lon pairs from the viewport | |
177 | gdouble min_lat, max_lat, min_lon, max_lon; | |
178 | gchar sminlon[G_ASCII_DTOSTR_BUF_SIZE]; | |
179 | gchar smaxlon[G_ASCII_DTOSTR_BUF_SIZE]; | |
180 | gchar sminlat[G_ASCII_DTOSTR_BUF_SIZE]; | |
181 | gchar smaxlat[G_ASCII_DTOSTR_BUF_SIZE]; | |
182 | vik_viewport_get_min_max_lat_lon ( viewport, &min_lat, &max_lat, &min_lon, &max_lon ); | |
183 | ||
184 | // Cannot simply use g_strdup_printf and gdouble due to locale. | |
185 | // As we compute an URL, we have to think in C locale. | |
186 | g_ascii_dtostr (sminlon, G_ASCII_DTOSTR_BUF_SIZE, min_lon); | |
187 | g_ascii_dtostr (smaxlon, G_ASCII_DTOSTR_BUF_SIZE, max_lon); | |
188 | g_ascii_dtostr (sminlat, G_ASCII_DTOSTR_BUF_SIZE, min_lat); | |
189 | g_ascii_dtostr (smaxlat, G_ASCII_DTOSTR_BUF_SIZE, max_lat); | |
190 | ||
191 | return g_strdup_printf ( priv->url, sminlon, smaxlon, sminlat, smaxlat ); | |
192 | } | |
193 | ||
194 | static gchar *webtool_bounds_get_url_at_position ( VikWebtool *self, VikWindow *vwindow, VikCoord *vc ) | |
195 | { | |
196 | // TODO: could use zoom level to generate an offset from center lat/lon to get the bounds | |
197 | // For now simply use the existing function to use bounds from the viewport | |
198 | return webtool_bounds_get_url ( self, vwindow ); | |
199 | } |