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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 | #ifdef HAVE_CONFIG_H | |
22 | #include "config.h" | |
23 | #endif | |
24 | #ifdef VIK_CONFIG_GEOCACHES | |
25 | #include <string.h> | |
26 | ||
27 | #include <glib/gi18n.h> | |
28 | ||
29 | #include "viking.h" | |
30 | #include "babel.h" | |
31 | #include "gpx.h" | |
32 | #include "acquire.h" | |
33 | #include "preferences.h" | |
34 | ||
35 | /* params will be geocaching.username, geocaching.password */ | |
36 | /* we have to make sure these don't collide. */ | |
37 | #define VIKING_GC_PARAMS_GROUP_KEY "geocaching" | |
38 | #define VIKING_GC_PARAMS_NAMESPACE "geocaching." | |
39 | ||
40 | ||
41 | typedef struct { | |
42 | GtkWidget *num_spin; | |
43 | GtkWidget *center_entry; | |
44 | GtkWidget *miles_radius_spin; | |
45 | ||
46 | GdkGC *circle_gc; | |
47 | VikViewport *vvp; | |
48 | gboolean circle_onscreen; | |
49 | gint circle_x, circle_y, circle_width; | |
50 | } datasource_gc_widgets_t; | |
51 | ||
52 | ||
53 | static gpointer datasource_gc_init ( ); | |
54 | static void datasource_gc_add_setup_widgets ( GtkWidget *dialog, VikViewport *vvp, gpointer user_data ); | |
55 | static void datasource_gc_get_cmd_string ( datasource_gc_widgets_t *widgets, gchar **cmd, gchar **input_file_type ); | |
56 | static void datasource_gc_cleanup ( datasource_gc_widgets_t *widgets ); | |
57 | static gchar *datasource_gc_check_existence (); | |
58 | ||
59 | #define METERSPERMILE 1609.344 | |
60 | ||
61 | VikDataSourceInterface vik_datasource_gc_interface = { | |
62 | N_("Download Geocaches"), | |
63 | N_("Geocaching.com Caches"), | |
64 | VIK_DATASOURCE_SHELL_CMD, | |
65 | VIK_DATASOURCE_ADDTOLAYER, | |
66 | VIK_DATASOURCE_INPUTTYPE_NONE, | |
67 | TRUE, | |
68 | (VikDataSourceInitFunc) datasource_gc_init, | |
69 | (VikDataSourceCheckExistenceFunc) datasource_gc_check_existence, | |
70 | (VikDataSourceAddSetupWidgetsFunc) datasource_gc_add_setup_widgets, | |
71 | (VikDataSourceGetCmdStringFunc) datasource_gc_get_cmd_string, | |
72 | (VikDataSourceProgressFunc) NULL, | |
73 | (VikDataSourceAddProgressWidgetsFunc) NULL, | |
74 | (VikDataSourceCleanupFunc) datasource_gc_cleanup | |
75 | }; | |
76 | ||
77 | static VikLayerParam prefs[] = { | |
78 | { VIKING_GC_PARAMS_NAMESPACE "username", VIK_LAYER_PARAM_STRING, VIK_LAYER_GROUP_NONE, N_("geocaching.com username:"), VIK_LAYER_WIDGET_ENTRY }, | |
79 | { VIKING_GC_PARAMS_NAMESPACE "password", VIK_LAYER_PARAM_STRING, VIK_LAYER_GROUP_NONE, N_("geocaching.com password:"), VIK_LAYER_WIDGET_ENTRY }, | |
80 | }; | |
81 | ||
82 | void a_datasource_gc_init() | |
83 | { | |
84 | a_preferences_register_group ( VIKING_GC_PARAMS_GROUP_KEY, "Geocaching" ); | |
85 | ||
86 | VikLayerParamData tmp; | |
87 | tmp.s = "username"; | |
88 | a_preferences_register(prefs, tmp, VIKING_GC_PARAMS_GROUP_KEY); | |
89 | tmp.s = "password"; | |
90 | a_preferences_register(prefs+1, tmp, VIKING_GC_PARAMS_GROUP_KEY); | |
91 | } | |
92 | ||
93 | ||
94 | static gpointer datasource_gc_init ( ) | |
95 | { | |
96 | datasource_gc_widgets_t *widgets = g_malloc(sizeof(*widgets)); | |
97 | return widgets; | |
98 | } | |
99 | ||
100 | static gchar *datasource_gc_check_existence () | |
101 | { | |
102 | gchar *gcget_location = g_find_program_in_path("gcget"); | |
103 | if ( gcget_location ) { | |
104 | g_free(gcget_location); | |
105 | return NULL; | |
106 | } | |
107 | return g_strdup(_("Can't find gcget in path! Check that you have installed gcget correctly.")); | |
108 | } | |
109 | ||
110 | static void datasource_gc_draw_circle ( datasource_gc_widgets_t *widgets ) | |
111 | { | |
112 | gdouble lat, lon; | |
113 | if ( widgets->circle_onscreen ) { | |
114 | vik_viewport_draw_arc ( widgets->vvp, widgets->circle_gc, FALSE, | |
115 | widgets->circle_x - widgets->circle_width/2, | |
116 | widgets->circle_y - widgets->circle_width/2, | |
117 | widgets->circle_width, widgets->circle_width, 0, 360*64 ); | |
118 | } | |
119 | /* calculate widgets circle_x and circle_y */ | |
120 | /* split up lat,lon into lat and lon */ | |
121 | if ( 2 == sscanf ( gtk_entry_get_text ( GTK_ENTRY(widgets->center_entry) ), "%lf,%lf", &lat, &lon ) ) { | |
122 | struct LatLon ll; | |
123 | VikCoord c; | |
124 | gint x, y; | |
125 | ||
126 | ll.lat = lat; ll.lon = lon; | |
127 | vik_coord_load_from_latlon ( &c, vik_viewport_get_coord_mode ( widgets->vvp ), &ll ); | |
128 | vik_viewport_coord_to_screen ( widgets->vvp, &c, &x, &y ); | |
129 | /* TODO: real calculation */ | |
130 | if ( x > -1000 && y > -1000 && x < (vik_viewport_get_width(widgets->vvp) + 1000) && | |
131 | y < (vik_viewport_get_width(widgets->vvp) + 1000) ) { | |
132 | VikCoord c1, c2; | |
133 | gdouble pixels_per_meter; | |
134 | ||
135 | widgets->circle_x = x; | |
136 | widgets->circle_y = y; | |
137 | ||
138 | /* determine miles per pixel */ | |
139 | vik_viewport_screen_to_coord ( widgets->vvp, 0, vik_viewport_get_height(widgets->vvp)/2, &c1 ); | |
140 | vik_viewport_screen_to_coord ( widgets->vvp, vik_viewport_get_width(widgets->vvp), vik_viewport_get_height(widgets->vvp)/2, &c2 ); | |
141 | pixels_per_meter = ((gdouble)vik_viewport_get_width(widgets->vvp)) / vik_coord_diff(&c1, &c2); | |
142 | ||
143 | /* this is approximate */ | |
144 | widgets->circle_width = gtk_spin_button_get_value_as_float ( GTK_SPIN_BUTTON(widgets->miles_radius_spin) ) | |
145 | * METERSPERMILE * pixels_per_meter * 2; | |
146 | ||
147 | vik_viewport_draw_arc ( widgets->vvp, widgets->circle_gc, FALSE, | |
148 | widgets->circle_x - widgets->circle_width/2, | |
149 | widgets->circle_y - widgets->circle_width/2, | |
150 | widgets->circle_width, widgets->circle_width, 0, 360*64 ); | |
151 | ||
152 | widgets->circle_onscreen = TRUE; | |
153 | } else | |
154 | widgets->circle_onscreen = FALSE; | |
155 | } | |
156 | ||
157 | /* see if onscreen */ | |
158 | /* okay */ | |
159 | vik_viewport_sync ( widgets->vvp ); | |
160 | } | |
161 | ||
162 | static void datasource_gc_add_setup_widgets ( GtkWidget *dialog, VikViewport *vvp, gpointer user_data ) | |
163 | { | |
164 | datasource_gc_widgets_t *widgets = (datasource_gc_widgets_t *)user_data; | |
165 | GtkWidget *num_label, *center_label, *miles_radius_label; | |
166 | struct LatLon ll; | |
167 | gchar *s_ll; | |
168 | ||
169 | num_label = gtk_label_new (_("Number geocaches:")); | |
170 | widgets->num_spin = gtk_spin_button_new ( GTK_ADJUSTMENT(gtk_adjustment_new( 100, 1, 1000, 10, 20, 50 )), 25, 0 ); | |
171 | center_label = gtk_label_new (_("Centered around:")); | |
172 | widgets->center_entry = gtk_entry_new(); | |
173 | miles_radius_label = gtk_label_new ("Miles Radius:"); | |
174 | widgets->miles_radius_spin = gtk_spin_button_new ( GTK_ADJUSTMENT(gtk_adjustment_new( 100, 1, 1000, 5, 20, 50 )), 25, 2 ); | |
175 | ||
176 | vik_coord_to_latlon ( vik_viewport_get_center(vvp), &ll ); | |
177 | s_ll = g_strdup_printf("%f,%f", ll.lat, ll.lon ); | |
178 | gtk_entry_set_text ( GTK_ENTRY(widgets->center_entry), s_ll ); | |
179 | g_free ( s_ll ); | |
180 | ||
181 | ||
182 | widgets->vvp = vvp; | |
183 | widgets->circle_gc = vik_viewport_new_gc ( vvp, "#000000", 3 ); | |
184 | gdk_gc_set_function ( widgets->circle_gc, GDK_INVERT ); | |
185 | widgets->circle_onscreen = FALSE; | |
186 | datasource_gc_draw_circle ( widgets ); | |
187 | ||
188 | g_signal_connect_swapped ( G_OBJECT(widgets->center_entry), "changed", G_CALLBACK(datasource_gc_draw_circle), widgets ); | |
189 | g_signal_connect_swapped ( G_OBJECT(widgets->miles_radius_spin), "value-changed", G_CALLBACK(datasource_gc_draw_circle), widgets ); | |
190 | ||
191 | gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), num_label, FALSE, FALSE, 5 ); | |
192 | gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), widgets->num_spin, FALSE, FALSE, 5 ); | |
193 | gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), center_label, FALSE, FALSE, 5 ); | |
194 | gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), widgets->center_entry, FALSE, FALSE, 5 ); | |
195 | gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), miles_radius_label, FALSE, FALSE, 5 ); | |
196 | gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), widgets->miles_radius_spin, FALSE, FALSE, 5 ); | |
197 | gtk_widget_show_all(dialog); | |
198 | } | |
199 | ||
200 | static void datasource_gc_get_cmd_string ( datasource_gc_widgets_t *widgets, gchar **cmd, gchar **input_file_type ) | |
201 | { | |
202 | gchar *safe_string = g_shell_quote ( gtk_entry_get_text ( GTK_ENTRY(widgets->center_entry) ) ); | |
203 | gchar *safe_user = g_shell_quote ( a_preferences_get ( VIKING_GC_PARAMS_NAMESPACE "username")->s ); | |
204 | gchar *safe_pass = g_shell_quote ( a_preferences_get ( VIKING_GC_PARAMS_NAMESPACE "password")->s ); | |
205 | *cmd = g_strdup_printf( "gcget -u %s -p -- %s %s %d %.2lf", safe_user, safe_pass, safe_string, | |
206 | gtk_spin_button_get_value_as_int ( GTK_SPIN_BUTTON(widgets->num_spin) ), | |
207 | gtk_spin_button_get_value_as_float ( GTK_SPIN_BUTTON(widgets->miles_radius_spin) ) ); | |
208 | *input_file_type = NULL; | |
209 | g_free ( safe_string ); | |
210 | g_free ( safe_user ); | |
211 | g_free ( safe_pass ); | |
212 | } | |
213 | ||
214 | static void datasource_gc_cleanup ( datasource_gc_widgets_t *widgets ) | |
215 | { | |
216 | if ( widgets->circle_onscreen ) { | |
217 | vik_viewport_draw_arc ( widgets->vvp, widgets->circle_gc, FALSE, | |
218 | widgets->circle_x - widgets->circle_width/2, | |
219 | widgets->circle_y - widgets->circle_width/2, | |
220 | widgets->circle_width, widgets->circle_width, 0, 360*64 ); | |
221 | vik_viewport_sync( widgets->vvp ); | |
222 | } | |
223 | g_free ( widgets ); | |
224 | } | |
225 | #endif /* VIK_CONFIG_GEOCACHES */ |