Contents of /trunk/src/map-tool.c

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Revision 38 - (hide annotations)
Sun Aug 2 18:37:10 2009 UTC (14 years, 9 months ago) by harbaum
File MIME type: text/plain
File size: 6779 byte(s)
Display caches on internal map
1 harbaum 33 /*
2     * Copyright (C) 2008 Till Harbaum <till@harbaum.org>.
3     *
4     * This file is part of GPXView.
5     *
6     * GPXView 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 3 of the License, or
9     * (at your option) any later version.
10     *
11     * GPXView 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 GPXView. If not, see <http://www.gnu.org/licenses/>.
18     */
19    
20     #include "gpxview.h"
21 harbaum 34 #include <math.h> // for isnan
22 harbaum 33
23     #ifdef ENABLE_OSM_GPS_MAP
24     #include "osm-gps-map.h"
25     #endif
26    
27     typedef struct {
28 harbaum 34 appdata_t *appdata;
29 harbaum 33 GtkWidget *widget;
30     GtkWidget *zoomin, *zoomout, *gps;
31     gint handler_id;
32     } map_context_t;
33    
34 harbaum 34 #define PROXY_KEY "/system/http_proxy/"
35    
36     static const char *get_proxy_uri(appdata_t *appdata) {
37     static char proxy_buffer[64] = "";
38 harbaum 33
39     /* use environment settings if preset */
40     const char *proxy = g_getenv("http_proxy");
41     if(proxy) {
42     printf("http_proxy: %s\n", proxy);
43     return proxy;
44     }
45    
46 harbaum 34 /* ------------- get proxy settings -------------------- */
47     if(gconf_client_get_bool(appdata->gconf_client,
48     PROXY_KEY "use_http_proxy", NULL)) {
49 harbaum 33
50 harbaum 34 /* we can savely ignore things like "ignore_hosts" since we */
51     /* are pretty sure not inside the net of one of our map renderers */
52     /* (unless the user works at google :-) */
53    
54     /* get basic settings */
55     char *host =
56     gconf_client_get_string(appdata->gconf_client, PROXY_KEY "host", NULL);
57     if(host) {
58     int port =
59     gconf_client_get_int(appdata->gconf_client, PROXY_KEY "port", NULL);
60 harbaum 33
61 harbaum 34 snprintf(proxy_buffer, sizeof(proxy_buffer),
62     "http://%s:%u", host, port);
63 harbaum 33
64 harbaum 34 g_free(host);
65     }
66 harbaum 35 return proxy_buffer;
67 harbaum 34 }
68    
69 harbaum 35 return NULL;
70 harbaum 33 }
71    
72     static void map_zoom(map_context_t *context, int step) {
73     int zoom;
74     OsmGpsMap *map = OSM_GPS_MAP(context->widget);
75     g_object_get(map, "zoom", &zoom, NULL);
76     zoom = osm_gps_map_set_zoom(map, zoom+step);
77    
78     /* enable/disable zoom buttons as required */
79     gtk_widget_set_sensitive(context->zoomin, zoom<17);
80     gtk_widget_set_sensitive(context->zoomout, zoom>1);
81     }
82    
83     static gboolean
84     cb_map_zoomin(GtkButton *button, map_context_t *context) {
85     map_zoom(context, +1);
86     return FALSE;
87     }
88    
89     static gboolean
90     cb_map_zoomout(GtkButton *button, map_context_t *context) {
91     map_zoom(context, -1);
92     return FALSE;
93     }
94    
95     static gboolean
96     cb_map_gps(GtkButton *button, map_context_t *context) {
97 harbaum 34 pos_t *refpos = get_pos(context->appdata);
98     if(refpos && !isnan(refpos->lat) && !isnan(refpos->lon)) {
99 harbaum 35 osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
100     refpos->lat, refpos->lon, 14);
101     } else {
102     /* no coordinates given: display the entire world */
103     osm_gps_map_set_mapcenter(OSM_GPS_MAP(context->widget),
104     0.0, 0.0, 1);
105 harbaum 34 }
106 harbaum 33
107     return FALSE;
108     }
109    
110     static GtkWidget
111     *map_add_button(const gchar *icon, GCallback cb, gpointer data,
112     char *tooltip) {
113     GtkWidget *button = gtk_button_new();
114     gtk_button_set_image(GTK_BUTTON(button),
115     gtk_image_new_from_stock(icon, GTK_ICON_SIZE_MENU));
116     g_signal_connect(button, "clicked", cb, data);
117     #ifndef USE_MAEMO
118     gtk_widget_set_tooltip_text(button, tooltip);
119     #endif
120     return button;
121     }
122    
123     static gboolean map_gps_update(gpointer data) {
124     map_context_t *context = (map_context_t*)data;
125    
126 harbaum 34 pos_t *refpos = get_pos(context->appdata);
127     gboolean ok = (refpos!= NULL) && !isnan(refpos->lat) && !isnan(refpos->lon);
128 harbaum 33
129 harbaum 34 /* get reference position and go there */
130     gtk_widget_set_sensitive(context->gps, ok);
131    
132 harbaum 33 return TRUE;
133     }
134    
135 harbaum 35 static gboolean on_map_configure(GtkWidget *widget,
136     GdkEventConfigure *event,
137     map_context_t *context) {
138 harbaum 33
139 harbaum 35 cb_map_gps(NULL, context);
140    
141     return FALSE;
142     }
143    
144 harbaum 38 static void map_draw_cachelist(GtkWidget *map, cache_t *cache) {
145     while(cache) {
146     GdkPixbuf *icon = icon_get(ICON_CACHE_TYPE, cache->type);
147    
148     osm_gps_map_add_image(OSM_GPS_MAP(map),
149     cache->pos.lat, cache->pos.lon, icon);
150    
151     cache = cache->next;
152     }
153     }
154    
155 harbaum 33 void map(appdata_t *appdata) {
156     map_context_t context;
157 harbaum 34 context.appdata = appdata;
158 harbaum 33
159     GtkWidget *dialog = gtk_dialog_new_with_buttons(_("Map"),
160     GTK_WINDOW(appdata->window),
161     GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
162     GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,
163     NULL);
164    
165     #ifndef USE_MAEMO
166     gtk_window_set_default_size(GTK_WINDOW(dialog), 400, 350);
167     #else
168     gtk_window_set_default_size(GTK_WINDOW(dialog), 800, 480);
169     #endif
170    
171     GtkWidget *hbox = gtk_hbox_new(FALSE, 0);
172    
173     char *path = g_strdup_printf("%s/map/", appdata->image_path);
174 harbaum 35 const char *proxy = get_proxy_uri(appdata);
175 harbaum 33
176     context.widget = g_object_new(OSM_TYPE_GPS_MAP,
177     "repo-uri", MAP_SOURCE_OPENSTREETMAP,
178     "tile-cache", path,
179 harbaum 35 proxy?"proxy-uri":NULL, proxy,
180 harbaum 33 NULL);
181    
182     g_free(path);
183    
184 harbaum 38 /* draw all geocaches */
185     gpx_t *gpx = appdata->gpx;
186     while(gpx) {
187     map_draw_cachelist(context.widget, gpx->cache);
188     gpx = gpx->next;
189     }
190    
191 harbaum 35 g_signal_connect(G_OBJECT(context.widget), "configure-event",
192     G_CALLBACK(on_map_configure), &context);
193 harbaum 33 #if 0
194     g_signal_connect(G_OBJECT(context.widget), "button-release-event",
195     G_CALLBACK(on_map_button_release_event), &context);
196     #endif
197    
198     gtk_box_pack_start_defaults(GTK_BOX(hbox), context.widget);
199     /* zoom button box */
200     GtkWidget *vbox = gtk_vbox_new(FALSE,0);
201    
202     context.zoomin =
203     map_add_button(GTK_STOCK_ZOOM_IN, G_CALLBACK(cb_map_zoomin),
204     &context, _("Zoom in"));
205     gtk_box_pack_start(GTK_BOX(vbox), context.zoomin, FALSE, FALSE, 0);
206    
207     context.zoomout =
208     map_add_button(GTK_STOCK_ZOOM_OUT, G_CALLBACK(cb_map_zoomout),
209     &context, _("Zoom out"));
210     gtk_box_pack_start(GTK_BOX(vbox), context.zoomout, FALSE, FALSE, 0);
211    
212     context.gps =
213     map_add_button(GTK_STOCK_HOME, G_CALLBACK(cb_map_gps),
214     &context, _("Jump to GPS position"));
215     gtk_widget_set_sensitive(context.gps, FALSE);
216     /* install handler for timed updates of the gps button */
217     context.handler_id = gtk_timeout_add(1000, map_gps_update, &context);
218     gtk_box_pack_start(GTK_BOX(vbox), context.gps, FALSE, FALSE, 0);
219    
220     gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);
221    
222     gtk_box_pack_start_defaults(GTK_BOX(GTK_DIALOG(dialog)->vbox), hbox);
223    
224     gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_CLOSE);
225    
226     gtk_widget_show_all(dialog);
227    
228     gtk_dialog_run(GTK_DIALOG(dialog));
229    
230 harbaum 35 gtk_timeout_remove(context.handler_id);
231    
232 harbaum 33 gtk_widget_destroy(dialog);
233     }