2 * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
4 * Copyright (C) 2011, Guilhem Bonnefille <guilhem.bonnefille@gmail.com>
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 <glib/gprintf.h>
27 #include <glib/gi18n.h>
35 * See http://wiki.openstreetmap.org/wiki/API_v0.6#GPS_Traces
37 #define DOWNLOAD_URL_FMT "api.openstreetmap.org/api/0.6/trackpoints?bbox=%s,%s,%s,%s&page=%d"
40 GtkWidget *page_number;
42 } datasource_osm_widgets_t;
44 static gdouble last_page_number = 0;
46 static gpointer datasource_osm_init( );
47 static void datasource_osm_add_setup_widgets ( GtkWidget *dialog, VikViewport *vvp, gpointer user_data );
48 static void datasource_osm_get_cmd_string ( datasource_osm_widgets_t *widgets, gchar **cmd, gchar **input_file_type, DownloadMapOptions *options );
49 static void datasource_osm_cleanup ( gpointer data );
51 VikDataSourceInterface vik_datasource_osm_interface = {
54 VIK_DATASOURCE_ADDTOLAYER,
55 VIK_DATASOURCE_INPUTTYPE_NONE,
59 (VikDataSourceInitFunc) datasource_osm_init,
60 (VikDataSourceCheckExistenceFunc) NULL,
61 (VikDataSourceAddSetupWidgetsFunc) datasource_osm_add_setup_widgets,
62 (VikDataSourceGetCmdStringFunc) datasource_osm_get_cmd_string,
63 (VikDataSourceProcessFunc) a_babel_convert_from_url,
64 (VikDataSourceProgressFunc) NULL,
65 (VikDataSourceAddProgressWidgetsFunc) NULL,
66 (VikDataSourceCleanupFunc) datasource_osm_cleanup,
67 (VikDataSourceOffFunc) NULL,
70 static gpointer datasource_osm_init ( )
72 datasource_osm_widgets_t *widgets = g_malloc(sizeof(*widgets));
76 static void datasource_osm_add_setup_widgets ( GtkWidget *dialog, VikViewport *vvp, gpointer user_data )
78 datasource_osm_widgets_t *widgets = (datasource_osm_widgets_t *)user_data;
79 GtkWidget *page_number_label;
80 page_number_label = gtk_label_new (_("Page number:"));
81 widgets->page_number = gtk_spin_button_new_with_range(0, 100, 1);
82 gtk_spin_button_set_value(GTK_SPIN_BUTTON(widgets->page_number), last_page_number);
83 gtk_box_pack_start ( GTK_BOX(gtk_dialog_get_content_area(GTK_DIALOG(dialog))), page_number_label, FALSE, FALSE, 5 );
84 gtk_box_pack_start ( GTK_BOX(gtk_dialog_get_content_area(GTK_DIALOG(dialog))), widgets->page_number, FALSE, FALSE, 5 );
85 gtk_widget_show_all(dialog);
86 /* Keep reference to viewport */
90 static void datasource_osm_get_cmd_string ( datasource_osm_widgets_t *widgets, gchar **cmd, gchar **input_file_type, DownloadMapOptions *options )
93 gdouble min_lat, max_lat, min_lon, max_lon;
94 gchar sminlon[G_ASCII_DTOSTR_BUF_SIZE];
95 gchar smaxlon[G_ASCII_DTOSTR_BUF_SIZE];
96 gchar sminlat[G_ASCII_DTOSTR_BUF_SIZE];
97 gchar smaxlat[G_ASCII_DTOSTR_BUF_SIZE];
99 /* get Viewport bounding box */
100 vik_viewport_get_min_max_lat_lon ( widgets->vvp, &min_lat, &max_lat, &min_lon, &max_lon );
102 /* Convert as LANG=C double representation */
103 g_ascii_dtostr (sminlon, G_ASCII_DTOSTR_BUF_SIZE, min_lon);
104 g_ascii_dtostr (smaxlon, G_ASCII_DTOSTR_BUF_SIZE, max_lon);
105 g_ascii_dtostr (sminlat, G_ASCII_DTOSTR_BUF_SIZE, min_lat);
106 g_ascii_dtostr (smaxlat, G_ASCII_DTOSTR_BUF_SIZE, max_lat);
108 /* Retrieve the specified page number */
109 last_page_number = gtk_spin_button_get_value(GTK_SPIN_BUTTON(widgets->page_number));
110 page = last_page_number;
112 *cmd = g_strdup_printf( DOWNLOAD_URL_FMT, sminlon, sminlat, smaxlon, smaxlat, page );
113 *input_file_type = NULL;
117 static void datasource_osm_cleanup ( gpointer data )