2 * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
4 * Copyright (C) 2003-2007, 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
24 #ifdef VIK_CONFIG_GEOCACHES
27 #include <glib/gi18n.h>
33 #include "preferences.h"
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."
43 GtkWidget *center_entry;
44 GtkWidget *miles_radius_spin;
48 gboolean circle_onscreen;
49 gint circle_x, circle_y, circle_width;
50 } datasource_gc_widgets_t;
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 ();
59 #define METERSPERMILE 1609.344
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,
69 (VikDataSourceInitFunc) datasource_gc_init,
70 (VikDataSourceCheckExistenceFunc) datasource_gc_check_existence,
71 (VikDataSourceAddSetupWidgetsFunc) datasource_gc_add_setup_widgets,
72 (VikDataSourceGetCmdStringFunc) datasource_gc_get_cmd_string,
73 (VikDataSourceProgressFunc) NULL,
74 (VikDataSourceAddProgressWidgetsFunc) NULL,
75 (VikDataSourceCleanupFunc) datasource_gc_cleanup,
76 (VikDataSourceOffFunc) NULL,
79 static VikLayerParam prefs[] = {
80 { VIKING_GC_PARAMS_NAMESPACE "username", VIK_LAYER_PARAM_STRING, VIK_LAYER_GROUP_NONE, N_("geocaching.com username:"), VIK_LAYER_WIDGET_ENTRY },
81 { VIKING_GC_PARAMS_NAMESPACE "password", VIK_LAYER_PARAM_STRING, VIK_LAYER_GROUP_NONE, N_("geocaching.com password:"), VIK_LAYER_WIDGET_ENTRY },
84 void a_datasource_gc_init()
86 a_preferences_register_group ( VIKING_GC_PARAMS_GROUP_KEY, "Geocaching" );
88 VikLayerParamData tmp;
90 a_preferences_register(prefs, tmp, VIKING_GC_PARAMS_GROUP_KEY);
92 a_preferences_register(prefs+1, tmp, VIKING_GC_PARAMS_GROUP_KEY);
96 static gpointer datasource_gc_init ( )
98 datasource_gc_widgets_t *widgets = g_malloc(sizeof(*widgets));
102 static gchar *datasource_gc_check_existence ()
104 gchar *gcget_location = g_find_program_in_path("gcget");
105 if ( gcget_location ) {
106 g_free(gcget_location);
109 return g_strdup(_("Can't find gcget in path! Check that you have installed gcget correctly."));
112 static void datasource_gc_draw_circle ( datasource_gc_widgets_t *widgets )
115 if ( widgets->circle_onscreen ) {
116 vik_viewport_draw_arc ( widgets->vvp, widgets->circle_gc, FALSE,
117 widgets->circle_x - widgets->circle_width/2,
118 widgets->circle_y - widgets->circle_width/2,
119 widgets->circle_width, widgets->circle_width, 0, 360*64 );
121 /* calculate widgets circle_x and circle_y */
122 /* split up lat,lon into lat and lon */
123 if ( 2 == sscanf ( gtk_entry_get_text ( GTK_ENTRY(widgets->center_entry) ), "%lf,%lf", &lat, &lon ) ) {
128 ll.lat = lat; ll.lon = lon;
129 vik_coord_load_from_latlon ( &c, vik_viewport_get_coord_mode ( widgets->vvp ), &ll );
130 vik_viewport_coord_to_screen ( widgets->vvp, &c, &x, &y );
131 /* TODO: real calculation */
132 if ( x > -1000 && y > -1000 && x < (vik_viewport_get_width(widgets->vvp) + 1000) &&
133 y < (vik_viewport_get_width(widgets->vvp) + 1000) ) {
135 gdouble pixels_per_meter;
137 widgets->circle_x = x;
138 widgets->circle_y = y;
140 /* determine miles per pixel */
141 vik_viewport_screen_to_coord ( widgets->vvp, 0, vik_viewport_get_height(widgets->vvp)/2, &c1 );
142 vik_viewport_screen_to_coord ( widgets->vvp, vik_viewport_get_width(widgets->vvp), vik_viewport_get_height(widgets->vvp)/2, &c2 );
143 pixels_per_meter = ((gdouble)vik_viewport_get_width(widgets->vvp)) / vik_coord_diff(&c1, &c2);
145 /* this is approximate */
146 widgets->circle_width = gtk_spin_button_get_value_as_float ( GTK_SPIN_BUTTON(widgets->miles_radius_spin) )
147 * METERSPERMILE * pixels_per_meter * 2;
149 vik_viewport_draw_arc ( widgets->vvp, widgets->circle_gc, FALSE,
150 widgets->circle_x - widgets->circle_width/2,
151 widgets->circle_y - widgets->circle_width/2,
152 widgets->circle_width, widgets->circle_width, 0, 360*64 );
154 widgets->circle_onscreen = TRUE;
156 widgets->circle_onscreen = FALSE;
159 /* see if onscreen */
161 vik_viewport_sync ( widgets->vvp );
164 static void datasource_gc_add_setup_widgets ( GtkWidget *dialog, VikViewport *vvp, gpointer user_data )
166 datasource_gc_widgets_t *widgets = (datasource_gc_widgets_t *)user_data;
167 GtkWidget *num_label, *center_label, *miles_radius_label;
171 num_label = gtk_label_new (_("Number geocaches:"));
172 widgets->num_spin = gtk_spin_button_new ( GTK_ADJUSTMENT(gtk_adjustment_new( 100, 1, 1000, 10, 20, 0 )), 25, 0 );
173 center_label = gtk_label_new (_("Centered around:"));
174 widgets->center_entry = gtk_entry_new();
175 miles_radius_label = gtk_label_new ("Miles Radius:");
176 widgets->miles_radius_spin = gtk_spin_button_new ( GTK_ADJUSTMENT(gtk_adjustment_new( 100, 1, 1000, 5, 20, 0 )), 25, 2 );
178 vik_coord_to_latlon ( vik_viewport_get_center(vvp), &ll );
179 s_ll = g_strdup_printf("%f,%f", ll.lat, ll.lon );
180 gtk_entry_set_text ( GTK_ENTRY(widgets->center_entry), s_ll );
185 widgets->circle_gc = vik_viewport_new_gc ( vvp, "#000000", 3 );
186 gdk_gc_set_function ( widgets->circle_gc, GDK_INVERT );
187 widgets->circle_onscreen = FALSE;
188 datasource_gc_draw_circle ( widgets );
190 g_signal_connect_swapped ( G_OBJECT(widgets->center_entry), "changed", G_CALLBACK(datasource_gc_draw_circle), widgets );
191 g_signal_connect_swapped ( G_OBJECT(widgets->miles_radius_spin), "value-changed", G_CALLBACK(datasource_gc_draw_circle), widgets );
193 gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), num_label, FALSE, FALSE, 5 );
194 gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), widgets->num_spin, FALSE, FALSE, 5 );
195 gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), center_label, FALSE, FALSE, 5 );
196 gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), widgets->center_entry, FALSE, FALSE, 5 );
197 gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), miles_radius_label, FALSE, FALSE, 5 );
198 gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), widgets->miles_radius_spin, FALSE, FALSE, 5 );
199 gtk_widget_show_all(dialog);
202 static void datasource_gc_get_cmd_string ( datasource_gc_widgets_t *widgets, gchar **cmd, gchar **input_file_type )
204 gchar *safe_string = g_shell_quote ( gtk_entry_get_text ( GTK_ENTRY(widgets->center_entry) ) );
205 gchar *safe_user = g_shell_quote ( a_preferences_get ( VIKING_GC_PARAMS_NAMESPACE "username")->s );
206 gchar *safe_pass = g_shell_quote ( a_preferences_get ( VIKING_GC_PARAMS_NAMESPACE "password")->s );
207 *cmd = g_strdup_printf( "gcget -u %s -p %s %s %d %.2lf", safe_user, safe_pass, safe_string,
208 gtk_spin_button_get_value_as_int ( GTK_SPIN_BUTTON(widgets->num_spin) ),
209 gtk_spin_button_get_value_as_float ( GTK_SPIN_BUTTON(widgets->miles_radius_spin) ) );
210 *input_file_type = NULL;
211 g_free ( safe_string );
212 g_free ( safe_user );
213 g_free ( safe_pass );
216 static void datasource_gc_cleanup ( datasource_gc_widgets_t *widgets )
218 if ( widgets->circle_onscreen ) {
219 vik_viewport_draw_arc ( widgets->vvp, widgets->circle_gc, FALSE,
220 widgets->circle_x - widgets->circle_width/2,
221 widgets->circle_y - widgets->circle_width/2,
222 widgets->circle_width, widgets->circle_width, 0, 360*64 );
223 vik_viewport_sync( widgets->vvp );
227 #endif /* VIK_CONFIG_GEOCACHES */