19 |
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20 |
#include "config.h" |
#include "config.h" |
21 |
#include <stdlib.h> // abs |
#include <stdlib.h> // abs |
22 |
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#include <string.h> |
23 |
#include <math.h> // M_PI/cos() |
#include <math.h> // M_PI/cos() |
24 |
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25 |
/* parameters that can be overwritten from the config file: */ |
/* parameters that can be overwritten from the config file: */ |
51 |
//a balloon with additional info |
//a balloon with additional info |
52 |
struct { |
struct { |
53 |
cairo_surface_t *surface; |
cairo_surface_t *surface; |
54 |
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int orientation, offset_x, offset_y; |
55 |
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56 |
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gboolean just_created; |
57 |
float lat, lon; |
float lat, lon; |
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gboolean valid; |
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58 |
OsmGpsMapRect_t rect; |
OsmGpsMapRect_t rect; |
59 |
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60 |
/* function called to have the user app draw the contents */ |
/* function called to have the user app draw the contents */ |
77 |
} crosshair; |
} crosshair; |
78 |
#endif |
#endif |
79 |
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80 |
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#ifdef OSD_NAV |
81 |
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struct { |
82 |
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cairo_surface_t *surface; |
83 |
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float lat, lon; |
84 |
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char *name; |
85 |
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gboolean imperial; // display distance imperial/metric |
86 |
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} nav; |
87 |
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#endif |
88 |
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89 |
#ifdef OSD_COORDINATES |
#ifdef OSD_COORDINATES |
90 |
struct { |
struct { |
91 |
cairo_surface_t *surface; |
cairo_surface_t *surface; |
130 |
#define BALLOON_SHADOW (BALLOON_CORNER_RADIUS/2) |
#define BALLOON_SHADOW (BALLOON_CORNER_RADIUS/2) |
131 |
#define BALLOON_SHADOW_TRANSPARENCY 0.2 |
#define BALLOON_SHADOW_TRANSPARENCY 0.2 |
132 |
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133 |
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#define BALLOON_W (BALLOON_WIDTH + BALLOON_SHADOW) |
134 |
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#define BALLOON_H (BALLOON_HEIGHT + POINTER_HEIGHT + BALLOON_SHADOW) |
135 |
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136 |
#define CLOSE_BUTTON_RADIUS (BALLOON_CORNER_RADIUS) |
#define CLOSE_BUTTON_RADIUS (BALLOON_CORNER_RADIUS) |
137 |
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138 |
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172 |
cairo_close_path (cr); |
cairo_close_path (cr); |
173 |
} |
} |
174 |
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/* xyz */ |
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175 |
static void |
static void |
176 |
osd_render_balloon(osm_gps_map_osd_t *osd) { |
osd_render_balloon(osm_gps_map_osd_t *osd) { |
177 |
osd_priv_t *priv = (osd_priv_t*)osd->priv; |
osd_priv_t *priv = (osd_priv_t*)osd->priv; |
181 |
g_object_get(OSM_GPS_MAP(osd->widget), "zoom", &zoom, NULL); |
g_object_get(OSM_GPS_MAP(osd->widget), "zoom", &zoom, NULL); |
182 |
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183 |
/* ------- convert given coordinate into screen position --------- */ |
/* ------- convert given coordinate into screen position --------- */ |
184 |
gint x0, y0; |
gint xs, ys; |
185 |
osm_gps_map_geographic_to_screen (OSM_GPS_MAP(osd->widget), |
osm_gps_map_geographic_to_screen (OSM_GPS_MAP(osd->widget), |
186 |
priv->balloon.lat, priv->balloon.lon, |
priv->balloon.lat, priv->balloon.lon, |
187 |
&x0, &y0); |
&xs, &ys); |
188 |
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189 |
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gint x0 = 1, y0 = 1; |
190 |
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191 |
/* check position of this relative to screen center to determine */ |
/* check position of this relative to screen center to determine */ |
192 |
/* pointer direction ... */ |
/* pointer direction ... */ |
193 |
int pointer_x = x0, pointer_x0, pointer_x1; |
int pointer_x, pointer_x0, pointer_x1; |
194 |
int pointer_y = y0; |
int pointer_y; |
195 |
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|
196 |
/* ... and calculate position */ |
/* ... and calculate position */ |
197 |
if(x0 > osd->widget->allocation.width/2) { |
int orientation = 0; |
198 |
x0 += POINTER_OFFSET; |
if(xs > osd->widget->allocation.width/2) { |
199 |
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priv->balloon.offset_x = -BALLOON_WIDTH + POINTER_OFFSET; |
200 |
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pointer_x = x0 - priv->balloon.offset_x; |
201 |
pointer_x0 = pointer_x - (BALLOON_CORNER_RADIUS - POINTER_OFFSET); |
pointer_x0 = pointer_x - (BALLOON_CORNER_RADIUS - POINTER_OFFSET); |
202 |
pointer_x1 = pointer_x0 - POINTER_FOOT_WIDTH; |
pointer_x1 = pointer_x0 - POINTER_FOOT_WIDTH; |
203 |
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orientation |= 1; |
204 |
} else { |
} else { |
205 |
x0 -= POINTER_OFFSET; |
priv->balloon.offset_x = -POINTER_OFFSET; |
206 |
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pointer_x = x0 - priv->balloon.offset_x; |
207 |
pointer_x1 = pointer_x + (BALLOON_CORNER_RADIUS - POINTER_OFFSET); |
pointer_x1 = pointer_x + (BALLOON_CORNER_RADIUS - POINTER_OFFSET); |
208 |
pointer_x0 = pointer_x1 + POINTER_FOOT_WIDTH; |
pointer_x0 = pointer_x1 + POINTER_FOOT_WIDTH; |
209 |
} |
} |
210 |
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|
211 |
gboolean bottom = FALSE; |
gboolean bottom = FALSE; |
212 |
if(y0 > osd->widget->allocation.height/2) { |
if(ys > osd->widget->allocation.height/2) { |
213 |
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priv->balloon.offset_y = -BALLOON_HEIGHT - POINTER_HEIGHT; |
214 |
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pointer_y = y0 - priv->balloon.offset_y; |
215 |
bottom = TRUE; |
bottom = TRUE; |
216 |
y0 -= BALLOON_HEIGHT + POINTER_HEIGHT; |
orientation |= 2; |
217 |
} else |
} else { |
218 |
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priv->balloon.offset_y = 0; |
219 |
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pointer_y = y0 - priv->balloon.offset_y; |
220 |
y0 += POINTER_HEIGHT; |
y0 += POINTER_HEIGHT; |
221 |
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} |
222 |
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223 |
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/* if required orientation equals current one, then don't render */ |
224 |
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/* anything */ |
225 |
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if(orientation == priv->balloon.orientation) |
226 |
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return; |
227 |
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228 |
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priv->balloon.orientation = orientation; |
229 |
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230 |
/* calculate bottom/right of box */ |
/* calculate bottom/right of box */ |
231 |
int x1 = x0 + BALLOON_WIDTH, y1 = y0 + BALLOON_HEIGHT; |
int x1 = x0 + BALLOON_WIDTH, y1 = y0 + BALLOON_HEIGHT; |
232 |
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|
237 |
priv->balloon.rect.h = y1 - y0 - 2*BALLOON_BORDER; |
priv->balloon.rect.h = y1 - y0 - 2*BALLOON_BORDER; |
238 |
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|
239 |
cairo_t *cr = cairo_create(priv->balloon.surface); |
cairo_t *cr = cairo_create(priv->balloon.surface); |
240 |
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cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); |
241 |
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cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.0); |
242 |
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cairo_paint(cr); |
243 |
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cairo_set_operator(cr, CAIRO_OPERATOR_OVER); |
244 |
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|
245 |
/* --------- draw shadow --------------- */ |
/* --------- draw shadow --------------- */ |
246 |
osm_gps_map_draw_balloon_shape (cr, |
osm_gps_map_draw_balloon_shape (cr, |
265 |
cairo_set_line_width (cr, 1); |
cairo_set_line_width (cr, 1); |
266 |
cairo_stroke (cr); |
cairo_stroke (cr); |
267 |
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/* ---------- draw close button --------- */ |
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int cx = x1 - BALLOON_BORDER - CLOSE_BUTTON_RADIUS; |
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int cy = y0 + BALLOON_BORDER + CLOSE_BUTTON_RADIUS; |
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int crad = CLOSE_BUTTON_RADIUS; |
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cairo_arc (cr, cx, cy, crad, 0, 2 * M_PI); |
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cairo_set_source_rgba (cr, 0.8, 0, 0, 1.0); |
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cairo_fill_preserve (cr); |
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cairo_set_source_rgba (cr, 0.3, 0, 0, 1.0); |
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cairo_set_line_width (cr, 2); |
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cairo_stroke(cr); |
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cairo_set_source_rgba (cr, 1, 1, 1, 1.0); |
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cairo_set_line_width (cr, BALLOON_CORNER_RADIUS/3.3); |
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cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); |
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cairo_move_to (cr, cx - crad/2, cy - crad/2); |
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cairo_line_to (cr, cx + crad/2, cy + crad/2); |
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cairo_stroke (cr); |
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cairo_move_to (cr, cx + crad/2, cy - crad/2); |
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cairo_line_to (cr, cx - crad/2, cy + crad/2); |
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cairo_stroke (cr); |
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268 |
if (priv->balloon.cb) { |
if (priv->balloon.cb) { |
269 |
/* clip in case application tries to draw in */ |
/* clip in case application tries to draw in */ |
270 |
/* exceed of the balloon */ |
/* exceed of the balloon */ |
276 |
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|
277 |
priv->balloon.cb(cr, &priv->balloon.rect, priv->balloon.data); |
priv->balloon.cb(cr, &priv->balloon.rect, priv->balloon.data); |
278 |
} |
} |
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cairo_destroy(cr); |
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} |
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#if 0 |
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/* the user clicked into the balloons main area. handle this */ |
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static void |
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osm_gps_map_handle_balloon_click(OsmGpsMap *map, gint x, gint y) |
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{ |
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OsmGpsMapPrivate *priv = map->priv; |
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if (!priv->balloon.valid) |
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return; |
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/* check if the close button was clicked */ |
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if ((x > priv->balloon.rect.w - 2*CLOSE_BUTTON_RADIUS) && |
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(x < priv->balloon.rect.w) && |
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(y > 0) && (y < 2*CLOSE_BUTTON_RADIUS)) { |
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279 |
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|
280 |
priv->balloon.valid = FALSE; |
cairo_destroy(cr); |
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osm_gps_map_map_redraw_idle(map); |
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} |
|
281 |
} |
} |
282 |
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|
283 |
/* return true if balloon is being displayed and if */ |
/* return true if balloon is being displayed and if */ |
284 |
/* the given coordinate is within this balloon */ |
/* the given coordinate is within this balloon */ |
285 |
static gboolean |
static gboolean |
286 |
osm_gps_map_in_balloon(OsmGpsMapPrivate *priv, gint x, gint y) |
osd_balloon_check(osm_gps_map_osd_t *osd, gboolean down, gint x, gint y) |
287 |
{ |
{ |
288 |
return (priv->balloon.valid && |
osd_priv_t *priv = (osd_priv_t*)osd->priv; |
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(x > priv->balloon.rect.x) && |
|
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(x < priv->balloon.rect.x + priv->balloon.rect.w) && |
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(y > priv->balloon.rect.y) && |
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(y < priv->balloon.rect.y + priv->balloon.rect.h)); |
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} |
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289 |
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290 |
#if 0 |
if(!priv->balloon.surface) |
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/* don't drag if the user clicked within the balloon */ |
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if (osm_gps_map_in_balloon(priv, |
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event->x + EXTRA_BORDER, |
|
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event->y + EXTRA_BORDER)) |
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{ |
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priv->drag_counter = -1; |
|
291 |
return FALSE; |
return FALSE; |
|
} |
|
292 |
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|
293 |
#ifdef ENABLE_BALLOON |
gint xs, ys; |
294 |
/* released inside the balloon? */ |
osm_gps_map_geographic_to_screen (OSM_GPS_MAP(osd->widget), |
295 |
if (osm_gps_map_in_balloon(priv, |
priv->balloon.lat, priv->balloon.lon, |
296 |
event->x + EXTRA_BORDER, |
&xs, &ys); |
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event->y + EXTRA_BORDER)) |
|
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{ |
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osm_gps_map_handle_balloon_click(OSM_GPS_MAP(widget), |
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event->x - priv->balloon.rect.x + EXTRA_BORDER, |
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event->y - priv->balloon.rect.y + EXTRA_BORDER); |
|
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} |
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|
#endif |
|
297 |
|
|
298 |
#endif |
xs += priv->balloon.rect.x + priv->balloon.offset_x; |
299 |
|
ys += priv->balloon.rect.y + priv->balloon.offset_y; |
300 |
|
|
301 |
void |
gboolean is_in = |
302 |
osm_gps_map_draw_balloon (OsmGpsMap *map, float latitude, float longitude, |
(x > xs) && (x < xs + priv->balloon.rect.w) && |
303 |
OsmGpsMapBalloonCallback cb, gpointer data) |
(y > ys) && (y < ys + priv->balloon.rect.h); |
304 |
{ |
|
305 |
OsmGpsMapPrivate *priv; |
/* handle the fact that the balloon may have been created by the */ |
306 |
|
/* button down event */ |
307 |
|
if(!is_in && !down && !priv->balloon.just_created) { |
308 |
|
/* the user actually clicked outside the balloon */ |
309 |
|
|
310 |
/* remove and previously installed balloon */ |
/* close the balloon! */ |
311 |
osm_gps_map_clear_balloon (map); |
osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(osd->widget)); |
312 |
|
} |
313 |
|
|
314 |
|
return is_in; |
315 |
|
} |
316 |
|
|
317 |
|
void osm_gps_map_osd_clear_balloon (OsmGpsMap *map) { |
318 |
g_return_if_fail (OSM_IS_GPS_MAP (map)); |
g_return_if_fail (OSM_IS_GPS_MAP (map)); |
|
priv = map->priv; |
|
319 |
|
|
320 |
priv->balloon.lat = latitude; |
osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map); |
321 |
priv->balloon.lon = longitude; |
g_return_if_fail (osd); |
|
priv->balloon.valid = TRUE; |
|
322 |
|
|
323 |
priv->balloon.cb = cb; |
osd_priv_t *priv = (osd_priv_t*)osd->priv; |
324 |
priv->balloon.data = data; |
g_return_if_fail (priv); |
325 |
|
|
326 |
// this redraws the map |
if(priv->balloon.surface) { |
327 |
osm_gps_map_map_redraw_idle(map); |
cairo_surface_destroy(priv->balloon.surface); |
328 |
|
priv->balloon.surface = NULL; |
329 |
|
priv->balloon.lat = OSM_GPS_MAP_INVALID; |
330 |
|
priv->balloon.lon = OSM_GPS_MAP_INVALID; |
331 |
|
} |
332 |
|
osm_gps_map_redraw(map); |
333 |
} |
} |
334 |
|
|
335 |
void |
void |
336 |
osm_gps_map_clear_balloon (OsmGpsMap *map) |
osm_gps_map_osd_draw_balloon (OsmGpsMap *map, float latitude, float longitude, |
337 |
{ |
OsmGpsMapBalloonCallback cb, gpointer data) { |
|
OsmGpsMapPrivate *priv; |
|
|
|
|
338 |
g_return_if_fail (OSM_IS_GPS_MAP (map)); |
g_return_if_fail (OSM_IS_GPS_MAP (map)); |
|
priv = map->priv; |
|
339 |
|
|
340 |
priv->balloon.valid = FALSE; |
osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map); |
341 |
|
g_return_if_fail (osd); |
|
osm_gps_map_map_redraw_idle(map); |
|
|
} |
|
|
#endif |
|
342 |
|
|
343 |
void osm_gps_map_osd_clear_balloon (OsmGpsMap *map) { |
osd_priv_t *priv = (osd_priv_t*)osd->priv; |
344 |
printf("request to clear balloon\n"); |
g_return_if_fail (priv); |
|
} |
|
345 |
|
|
346 |
void |
osm_gps_map_osd_clear_balloon (map); |
347 |
osm_gps_map_osd_draw_balloon (OsmGpsMap *map, float latitude, float longitude, |
|
348 |
OsmGpsMapBalloonCallback cb, gpointer data) |
/* allocate balloon surface */ |
349 |
{ |
priv->balloon.surface = |
350 |
printf("request to draw balloon at %f %f\n", latitude, longitude); |
cairo_image_surface_create(CAIRO_FORMAT_ARGB32, |
351 |
|
BALLOON_W+2, BALLOON_H+2); |
352 |
|
|
353 |
|
priv->balloon.lat = latitude; |
354 |
|
priv->balloon.lon = longitude; |
355 |
|
priv->balloon.cb = cb; |
356 |
|
priv->balloon.data = data; |
357 |
|
priv->balloon.just_created = TRUE; |
358 |
|
|
359 |
|
priv->balloon.orientation = -1; |
360 |
|
|
361 |
|
osd_render_balloon(osd); |
362 |
|
|
363 |
|
osm_gps_map_redraw(map); |
364 |
} |
} |
365 |
|
|
366 |
#endif // OSD_BALLOON |
#endif // OSD_BALLOON |
875 |
|
|
876 |
/* check if the user clicked inside the source selection area */ |
/* check if the user clicked inside the source selection area */ |
877 |
static osd_button_t |
static osd_button_t |
878 |
osd_source_check(osm_gps_map_osd_t *osd, gint x, gint y) { |
osd_source_check(osm_gps_map_osd_t *osd, gboolean down, gint x, gint y) { |
879 |
osd_priv_t *priv = (osd_priv_t*)osd->priv; |
osd_priv_t *priv = (osd_priv_t*)osd->priv; |
880 |
|
|
881 |
if(!priv->source_sel.expanded) |
if(!priv->source_sel.expanded) |
893 |
/* really within puller shape? */ |
/* really within puller shape? */ |
894 |
if(x > Z_RAD || osm_gps_map_in_circle(x, y, Z_RAD, Z_RAD, Z_RAD)) { |
if(x > Z_RAD || osm_gps_map_in_circle(x, y, Z_RAD, Z_RAD, Z_RAD)) { |
895 |
/* expand source selector */ |
/* expand source selector */ |
896 |
osd_source_toggle(osd); |
if(down) |
897 |
|
osd_source_toggle(osd); |
898 |
|
|
899 |
/* tell upper layers that user clicked some background element */ |
/* tell upper layers that user clicked some background element */ |
900 |
/* of the OSD */ |
/* of the OSD */ |
920 |
y /= step; |
y /= step; |
921 |
y += 1; |
y += 1; |
922 |
|
|
923 |
gint old = 0; |
if(down) { |
924 |
g_object_get(osd->widget, "map-source", &old, NULL); |
gint old = 0; |
925 |
|
g_object_get(osd->widget, "map-source", &old, NULL); |
926 |
if(y > OSM_GPS_MAP_SOURCE_NULL && |
|
927 |
y <= OSM_GPS_MAP_SOURCE_LAST && |
if(y > OSM_GPS_MAP_SOURCE_NULL && |
928 |
old != y) { |
y <= OSM_GPS_MAP_SOURCE_LAST && |
929 |
g_object_set(osd->widget, "map-source", y, NULL); |
old != y) { |
930 |
|
g_object_set(osd->widget, "map-source", y, NULL); |
931 |
osd_render_source_sel(osd, TRUE); |
|
932 |
osm_gps_map_repaint(OSM_GPS_MAP(osd->widget)); |
osd_render_source_sel(osd, TRUE); |
933 |
|
osm_gps_map_repaint(OSM_GPS_MAP(osd->widget)); |
934 |
|
} |
935 |
} |
} |
936 |
|
|
937 |
/* return "clicked in OSD background" to prevent further */ |
/* return "clicked in OSD background" to prevent further */ |
945 |
#endif // OSD_SOURCE_SEL |
#endif // OSD_SOURCE_SEL |
946 |
|
|
947 |
static osd_button_t |
static osd_button_t |
948 |
osd_check(osm_gps_map_osd_t *osd, gint x, gint y) { |
osd_check(osm_gps_map_osd_t *osd, gboolean down, gint x, gint y) { |
949 |
osd_button_t but = OSD_NONE; |
osd_button_t but = OSD_NONE; |
950 |
|
|
951 |
|
#ifdef OSD_BALLOON |
952 |
|
if(down) { |
953 |
|
/* needed to handle balloons that are created at click */ |
954 |
|
osd_priv_t *priv = (osd_priv_t*)osd->priv; |
955 |
|
priv->balloon.just_created = FALSE; |
956 |
|
} |
957 |
|
#endif |
958 |
|
|
959 |
#ifdef OSD_SOURCE_SEL |
#ifdef OSD_SOURCE_SEL |
960 |
/* the source selection area is handles internally */ |
/* the source selection area is handles internally */ |
961 |
but = osd_source_check(osd, x, y); |
but = osd_source_check(osd, down, x, y); |
|
if(but != OSD_NONE) |
|
|
return but; |
|
962 |
#endif |
#endif |
963 |
|
|
964 |
x -= OSD_X; |
if(but == OSD_NONE) { |
965 |
y -= OSD_Y; |
gint mx = x - OSD_X; |
966 |
|
gint my = y - OSD_Y; |
967 |
if(OSD_X < 0) |
|
968 |
x -= (osd->widget->allocation.width - OSD_W); |
if(OSD_X < 0) |
969 |
|
mx -= (osd->widget->allocation.width - OSD_W); |
970 |
if(OSD_Y < 0) |
|
971 |
y -= (osd->widget->allocation.height - OSD_H); |
if(OSD_Y < 0) |
972 |
|
my -= (osd->widget->allocation.height - OSD_H); |
973 |
/* first do a rough test for the OSD area. */ |
|
974 |
/* this is just to avoid an unnecessary detailed test */ |
/* first do a rough test for the OSD area. */ |
975 |
if(x > 0 && x < OSD_W && y > 0 && y < OSD_H) { |
/* this is just to avoid an unnecessary detailed test */ |
976 |
|
if(mx > 0 && mx < OSD_W && my > 0 && my < OSD_H) { |
977 |
#ifndef OSD_NO_DPAD |
#ifndef OSD_NO_DPAD |
978 |
but = osd_check_dpad(x, y); |
but = osd_check_dpad(mx, my); |
979 |
#endif |
#endif |
980 |
|
} |
981 |
|
|
982 |
if(but == OSD_NONE) |
if(but == OSD_NONE) |
983 |
but = osd_check_zoom(x, y); |
but = osd_check_zoom(mx, my); |
984 |
} |
} |
985 |
|
|
986 |
|
#ifdef OSD_BALLOON |
987 |
|
if(but == OSD_NONE) { |
988 |
|
/* check if user clicked into balloon */ |
989 |
|
if(osd_balloon_check(osd, down, x, y)) |
990 |
|
but = OSD_BG; |
991 |
|
} |
992 |
|
#endif |
993 |
|
|
994 |
return but; |
return but; |
995 |
} |
} |
996 |
|
|
1073 |
#define OSD_COORDINATES_OFFSET (OSD_COORDINATES_FONT_SIZE/6) |
#define OSD_COORDINATES_OFFSET (OSD_COORDINATES_FONT_SIZE/6) |
1074 |
|
|
1075 |
#define OSD_COORDINATES_W (8*OSD_COORDINATES_FONT_SIZE+2*OSD_COORDINATES_OFFSET) |
#define OSD_COORDINATES_W (8*OSD_COORDINATES_FONT_SIZE+2*OSD_COORDINATES_OFFSET) |
1076 |
#define OSD_COORDINATES_H (2*OSD_COORDINATES_FONT_SIZE+OSD_COORDINATES_OFFSET) |
#define OSD_COORDINATES_H (2*OSD_COORDINATES_FONT_SIZE+2*OSD_COORDINATES_OFFSET+OSD_COORDINATES_FONT_SIZE/4) |
1077 |
|
|
1078 |
/* these can be overwritten with versions that support */ |
/* these can be overwritten with versions that support */ |
1079 |
/* localization */ |
/* localization */ |
1131 |
c, (int)integral, fractional*60.0); |
c, (int)integral, fractional*60.0); |
1132 |
} |
} |
1133 |
|
|
1134 |
|
/* render a string at the given screen position */ |
1135 |
|
static int |
1136 |
|
osd_render_centered_text(cairo_t *cr, int y, int width, char *text) { |
1137 |
|
char *p = g_strdup(text); |
1138 |
|
cairo_text_extents_t extents; |
1139 |
|
cairo_text_extents (cr, p, &extents); |
1140 |
|
|
1141 |
|
/* check if text needs to be truncated */ |
1142 |
|
int len = strlen(text)-2; |
1143 |
|
while(extents.width > width) { |
1144 |
|
len--; |
1145 |
|
strcpy(p+len, "..."); |
1146 |
|
cairo_text_extents (cr, p, &extents); |
1147 |
|
} |
1148 |
|
|
1149 |
|
cairo_set_source_rgb(cr, 1.0, 1.0, 1.0); |
1150 |
|
cairo_set_line_width (cr, OSD_COORDINATES_FONT_SIZE/6); |
1151 |
|
cairo_move_to (cr, (width - extents.width)/2, y - extents.y_bearing); |
1152 |
|
cairo_text_path (cr, p); |
1153 |
|
cairo_stroke (cr); |
1154 |
|
|
1155 |
|
cairo_set_source_rgb(cr, 0.0, 0.0, 0.0); |
1156 |
|
cairo_move_to (cr, (width - extents.width)/2, y - extents.y_bearing); |
1157 |
|
cairo_show_text (cr, p); |
1158 |
|
|
1159 |
|
g_free(p); |
1160 |
|
|
1161 |
|
/* skip + 1/4 line */ |
1162 |
|
return y + 5*OSD_COORDINATES_FONT_SIZE/4; |
1163 |
|
} |
1164 |
|
|
1165 |
static void |
static void |
1166 |
osd_render_coordinates(osm_gps_map_osd_t *osd) |
osd_render_coordinates(osm_gps_map_osd_t *osd) |
1167 |
{ |
{ |
1197 |
char *latitude = osd_latitude_str(lat); |
char *latitude = osd_latitude_str(lat); |
1198 |
char *longitude = osd_longitude_str(lon); |
char *longitude = osd_longitude_str(lon); |
1199 |
|
|
1200 |
cairo_text_extents_t lat_extents, lon_extents; |
int y = OSD_COORDINATES_OFFSET; |
1201 |
cairo_text_extents (cr, latitude, &lat_extents); |
y = osd_render_centered_text(cr, y, OSD_COORDINATES_W, latitude); |
1202 |
cairo_text_extents (cr, longitude, &lon_extents); |
y = osd_render_centered_text(cr, y, OSD_COORDINATES_W, longitude); |
1203 |
|
|
1204 |
|
g_free(latitude); |
1205 |
|
g_free(longitude); |
1206 |
|
|
1207 |
cairo_set_source_rgb(cr, 1.0, 1.0, 1.0); |
cairo_destroy(cr); |
1208 |
cairo_set_line_width (cr, OSD_COORDINATES_FONT_SIZE/6); |
} |
1209 |
cairo_move_to (cr, |
#endif // OSD_COORDINATES |
|
(OSD_COORDINATES_W - lat_extents.width)/2, |
|
|
OSD_COORDINATES_OFFSET - lat_extents.y_bearing); |
|
|
cairo_text_path (cr, latitude); |
|
|
cairo_move_to (cr, |
|
|
(OSD_COORDINATES_W - lon_extents.width)/2, |
|
|
OSD_COORDINATES_OFFSET - lon_extents.y_bearing + |
|
|
OSD_COORDINATES_FONT_SIZE); |
|
|
cairo_text_path (cr, longitude); |
|
|
cairo_stroke (cr); |
|
1210 |
|
|
1211 |
cairo_set_source_rgb(cr, 0.0, 0.0, 0.0); |
#ifdef OSD_NAV |
1212 |
cairo_move_to (cr, |
#define OSD_NAV_W (8*OSD_COORDINATES_FONT_SIZE+2*OSD_COORDINATES_OFFSET) |
1213 |
(OSD_COORDINATES_W - lat_extents.width)/2, |
#define OSD_NAV_H (11*OSD_COORDINATES_FONT_SIZE) |
1214 |
OSD_COORDINATES_OFFSET - lat_extents.y_bearing); |
|
1215 |
cairo_show_text (cr, latitude); |
/* http://mathforum.org/library/drmath/view/55417.html */ |
1216 |
cairo_move_to (cr, |
static float get_bearing(float lat1, float lon1, float lat2, float lon2) { |
1217 |
(OSD_COORDINATES_W - lon_extents.width)/2, |
return atan2( sin(lon2 - lon1) * cos(lat2), |
1218 |
OSD_COORDINATES_OFFSET - lon_extents.y_bearing + |
cos(lat1) * sin(lat2) - |
1219 |
OSD_COORDINATES_FONT_SIZE); |
sin(lat1) * cos(lat2) * cos(lon2 - lon1)); |
1220 |
cairo_show_text (cr, longitude); |
} |
1221 |
|
|
1222 |
|
/* http://mathforum.org/library/drmath/view/51722.html */ |
1223 |
|
static float get_distance(float lat1, float lon1, float lat2, float lon2) { |
1224 |
|
float aob = acos(cos(lat1) * cos(lat2) * cos(lon2 - lon1) + |
1225 |
|
sin(lat1) * sin(lat2)); |
1226 |
|
|
1227 |
|
// return(aob * 3959.0); /* great circle radius in miles */ |
1228 |
|
|
1229 |
|
return(aob * 6371000.0); /* great circle radius in meters */ |
1230 |
|
} |
1231 |
|
|
1232 |
|
static void |
1233 |
|
osd_render_nav(osm_gps_map_osd_t *osd) |
1234 |
|
{ |
1235 |
|
osd_priv_t *priv = (osd_priv_t*)osd->priv; |
1236 |
|
|
1237 |
|
if(!priv->nav.surface || isnan(priv->nav.lat) || isnan(priv->nav.lon)) |
1238 |
|
return; |
1239 |
|
|
1240 |
|
/* first fill with transparency */ |
1241 |
|
cairo_t *cr = cairo_create(priv->nav.surface); |
1242 |
|
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); |
1243 |
|
cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0); |
1244 |
|
cairo_paint(cr); |
1245 |
|
cairo_set_operator(cr, CAIRO_OPERATOR_OVER); |
1246 |
|
|
1247 |
|
cairo_select_font_face (cr, "Sans", |
1248 |
|
CAIRO_FONT_SLANT_NORMAL, |
1249 |
|
CAIRO_FONT_WEIGHT_BOLD); |
1250 |
|
cairo_set_font_size (cr, OSD_COORDINATES_FONT_SIZE); |
1251 |
|
|
1252 |
|
char *latitude = osd_latitude_str(priv->nav.lat); |
1253 |
|
char *longitude = osd_longitude_str(priv->nav.lon); |
1254 |
|
|
1255 |
|
int y = OSD_COORDINATES_OFFSET; |
1256 |
|
y = osd_render_centered_text(cr, y, OSD_NAV_W, priv->nav.name); |
1257 |
|
y = osd_render_centered_text(cr, y, OSD_NAV_W, latitude); |
1258 |
|
y = osd_render_centered_text(cr, y, OSD_NAV_W, longitude); |
1259 |
|
|
1260 |
g_free(latitude); |
g_free(latitude); |
1261 |
g_free(longitude); |
g_free(longitude); |
1262 |
|
|
1263 |
|
/* draw the compass */ |
1264 |
|
int radius = (OSD_NAV_H - y - 5*OSD_COORDINATES_FONT_SIZE/4)/2; |
1265 |
|
if(radius > OSD_NAV_W/2) |
1266 |
|
radius = OSD_NAV_W/2; |
1267 |
|
|
1268 |
|
int x = OSD_NAV_W/2+1; |
1269 |
|
y += radius; |
1270 |
|
|
1271 |
|
cairo_stroke (cr); |
1272 |
|
|
1273 |
|
/* draw background */ |
1274 |
|
cairo_arc(cr, x, y, radius, 0, 2*M_PI); |
1275 |
|
cairo_set_source_rgba (cr, 1, 1, 1, 0.5); |
1276 |
|
cairo_fill_preserve (cr); |
1277 |
|
cairo_set_source_rgb (cr, 0, 0, 0); |
1278 |
|
cairo_set_line_width (cr, 1); |
1279 |
|
cairo_stroke (cr); |
1280 |
|
|
1281 |
|
/* draw pointer */ |
1282 |
|
#define ARROW_WIDTH 0.3 |
1283 |
|
#define ARROW_LENGTH 0.7 |
1284 |
|
|
1285 |
|
coord_t *gps = osm_gps_map_get_gps (OSM_GPS_MAP(osd->widget)); |
1286 |
|
if(gps) { |
1287 |
|
float arot = get_bearing(gps->rlat, gps->rlon, |
1288 |
|
deg2rad(priv->nav.lat), deg2rad(priv->nav.lon)); |
1289 |
|
|
1290 |
|
cairo_move_to(cr, |
1291 |
|
x + radius * ARROW_LENGTH * sin(arot), |
1292 |
|
y + radius * ARROW_LENGTH * -cos(arot)); |
1293 |
|
|
1294 |
|
cairo_line_to(cr, |
1295 |
|
x + radius * -ARROW_LENGTH * sin(arot+ARROW_WIDTH), |
1296 |
|
y + radius * -ARROW_LENGTH * -cos(arot+ARROW_WIDTH)); |
1297 |
|
|
1298 |
|
cairo_line_to(cr, |
1299 |
|
x + radius * -0.5 * ARROW_LENGTH * sin(arot), |
1300 |
|
y + radius * -0.5 * ARROW_LENGTH * -cos(arot)); |
1301 |
|
|
1302 |
|
cairo_line_to(cr, |
1303 |
|
x + radius * -ARROW_LENGTH * sin(arot-ARROW_WIDTH), |
1304 |
|
y + radius * -ARROW_LENGTH * -cos(arot-ARROW_WIDTH)); |
1305 |
|
|
1306 |
|
cairo_close_path(cr); |
1307 |
|
cairo_set_source_rgb (cr, 0, 0, 0); |
1308 |
|
cairo_fill (cr); |
1309 |
|
|
1310 |
|
y += radius + OSD_COORDINATES_FONT_SIZE/4; |
1311 |
|
|
1312 |
|
float dist = get_distance(gps->rlat, gps->rlon, |
1313 |
|
deg2rad(priv->nav.lat), deg2rad(priv->nav.lon)); |
1314 |
|
|
1315 |
|
char *dist_str = NULL; |
1316 |
|
if(!priv->nav.imperial) { |
1317 |
|
/* metric is easy ... */ |
1318 |
|
if(dist<1000) |
1319 |
|
dist_str = g_strdup_printf("%u m", (int)dist); |
1320 |
|
else |
1321 |
|
dist_str = g_strdup_printf("%.1f km", dist/1000); |
1322 |
|
} else { |
1323 |
|
/* and now the hard part: scale for useful imperial values :-( */ |
1324 |
|
/* try to convert to feet, 1ft == 0.3048 m */ |
1325 |
|
|
1326 |
|
if(dist/(3*0.3048) >= 1760.0) /* more than 1760 yard? */ |
1327 |
|
dist_str = g_strdup_printf("%.1f mi", dist/(0.3048*3*1760.0)); |
1328 |
|
else if(dist/0.3048 >= 100) /* more than 100 feet? */ |
1329 |
|
dist_str = g_strdup_printf("%.1f yd", dist/(0.3048*3)); |
1330 |
|
else |
1331 |
|
dist_str = g_strdup_printf("%.0f ft", dist/0.3048); |
1332 |
|
} |
1333 |
|
|
1334 |
|
y = osd_render_centered_text(cr, y, OSD_NAV_W, dist_str); |
1335 |
|
g_free(dist_str); |
1336 |
|
} |
1337 |
|
|
1338 |
cairo_destroy(cr); |
cairo_destroy(cr); |
1339 |
} |
} |
1340 |
#endif // OSD_COORDINATES |
|
1341 |
|
void osm_gps_map_osd_clear_nav (OsmGpsMap *map) { |
1342 |
|
g_return_if_fail (OSM_IS_GPS_MAP (map)); |
1343 |
|
|
1344 |
|
osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map); |
1345 |
|
g_return_if_fail (osd); |
1346 |
|
|
1347 |
|
osd_priv_t *priv = (osd_priv_t*)osd->priv; |
1348 |
|
g_return_if_fail (priv); |
1349 |
|
|
1350 |
|
if(priv->nav.surface) { |
1351 |
|
cairo_surface_destroy(priv->nav.surface); |
1352 |
|
priv->nav.surface = NULL; |
1353 |
|
priv->nav.lat = OSM_GPS_MAP_INVALID; |
1354 |
|
priv->nav.lon = OSM_GPS_MAP_INVALID; |
1355 |
|
if(priv->nav.name) g_free(priv->nav.name); |
1356 |
|
} |
1357 |
|
osm_gps_map_redraw(map); |
1358 |
|
} |
1359 |
|
|
1360 |
|
void |
1361 |
|
osm_gps_map_osd_draw_nav (OsmGpsMap *map, gboolean imperial, |
1362 |
|
float latitude, float longitude, char *name) { |
1363 |
|
g_return_if_fail (OSM_IS_GPS_MAP (map)); |
1364 |
|
|
1365 |
|
osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map); |
1366 |
|
g_return_if_fail (osd); |
1367 |
|
|
1368 |
|
osd_priv_t *priv = (osd_priv_t*)osd->priv; |
1369 |
|
g_return_if_fail (priv); |
1370 |
|
|
1371 |
|
osm_gps_map_osd_clear_nav (map); |
1372 |
|
|
1373 |
|
/* allocate balloon surface */ |
1374 |
|
priv->nav.surface = |
1375 |
|
cairo_image_surface_create(CAIRO_FORMAT_ARGB32, |
1376 |
|
OSD_NAV_W+2, OSD_NAV_H+2); |
1377 |
|
|
1378 |
|
priv->nav.lat = latitude; |
1379 |
|
priv->nav.lon = longitude; |
1380 |
|
priv->nav.name = g_strdup(name); |
1381 |
|
priv->nav.imperial = imperial; |
1382 |
|
|
1383 |
|
osd_render_nav(osd); |
1384 |
|
|
1385 |
|
osm_gps_map_redraw(map); |
1386 |
|
} |
1387 |
|
|
1388 |
|
#endif // OSD_NAV |
1389 |
|
|
1390 |
|
|
1391 |
#ifdef OSD_CROSSHAIR |
#ifdef OSD_CROSSHAIR |
1392 |
|
|
1715 |
osd_render_crosshair(osd); |
osd_render_crosshair(osd); |
1716 |
#endif |
#endif |
1717 |
|
|
1718 |
|
#ifdef OSD_NAV |
1719 |
|
osd_render_nav(osd); |
1720 |
|
#endif |
1721 |
|
|
1722 |
#ifdef OSD_COORDINATES |
#ifdef OSD_COORDINATES |
1723 |
osd_render_coordinates(osd); |
osd_render_coordinates(osd); |
1724 |
#endif |
#endif |
1778 |
// now draw this onto the original context |
// now draw this onto the original context |
1779 |
cairo_t *cr = gdk_cairo_create(drawable); |
cairo_t *cr = gdk_cairo_create(drawable); |
1780 |
|
|
1781 |
int x, y; |
gint x, y; |
1782 |
|
|
1783 |
#ifdef OSD_SCALE |
#ifdef OSD_SCALE |
1784 |
x = OSD_X; |
x = OSD_X; |
1798 |
cairo_paint(cr); |
cairo_paint(cr); |
1799 |
#endif |
#endif |
1800 |
|
|
1801 |
|
#ifdef OSD_NAV |
1802 |
|
if(priv->nav.surface) { |
1803 |
|
x = OSD_X; |
1804 |
|
if(x < 0) x += osd->widget->allocation.width - OSD_NAV_W; |
1805 |
|
y = (osd->widget->allocation.height - OSD_NAV_H)/2; |
1806 |
|
|
1807 |
|
cairo_set_source_surface(cr, priv->nav.surface, x, y); |
1808 |
|
cairo_paint(cr); |
1809 |
|
} |
1810 |
|
#endif |
1811 |
|
|
1812 |
#ifdef OSD_COORDINATES |
#ifdef OSD_COORDINATES |
1813 |
x = -OSD_X; |
x = -OSD_X; |
1814 |
y = -OSD_Y; |
y = -OSD_Y; |
1819 |
cairo_paint(cr); |
cairo_paint(cr); |
1820 |
#endif |
#endif |
1821 |
|
|
1822 |
|
#ifdef OSD_BALLOON |
1823 |
|
if(priv->balloon.surface) { |
1824 |
|
|
1825 |
|
/* convert given lat lon into screen coordinates */ |
1826 |
|
gint x, y; |
1827 |
|
osm_gps_map_geographic_to_screen (OSM_GPS_MAP(osd->widget), |
1828 |
|
priv->balloon.lat, priv->balloon.lon, |
1829 |
|
&x, &y); |
1830 |
|
|
1831 |
|
/* check if balloon needs to be rerendered */ |
1832 |
|
osd_render_balloon(osd); |
1833 |
|
|
1834 |
|
cairo_set_source_surface(cr, priv->balloon.surface, |
1835 |
|
x + priv->balloon.offset_x, |
1836 |
|
y + priv->balloon.offset_y); |
1837 |
|
cairo_paint(cr); |
1838 |
|
} |
1839 |
|
#endif |
1840 |
|
|
1841 |
x = OSD_X; |
x = OSD_X; |
1842 |
if(x < 0) |
if(x < 0) |
1843 |
x += osd->widget->allocation.width - OSD_W; |
x += osd->widget->allocation.width - OSD_W; |
1900 |
cairo_surface_destroy(priv->crosshair.surface); |
cairo_surface_destroy(priv->crosshair.surface); |
1901 |
#endif |
#endif |
1902 |
|
|
1903 |
|
#ifdef OSD_NAV |
1904 |
|
if (priv->nav.surface) |
1905 |
|
cairo_surface_destroy(priv->nav.surface); |
1906 |
|
#endif |
1907 |
|
|
1908 |
#ifdef OSD_COORDINATES |
#ifdef OSD_COORDINATES |
1909 |
if (priv->coordinates.surface) |
if (priv->coordinates.surface) |
1910 |
cairo_surface_destroy(priv->coordinates.surface); |
cairo_surface_destroy(priv->coordinates.surface); |
1984 |
osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map); |
osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map); |
1985 |
g_return_val_if_fail (osd, OSD_NONE); |
g_return_val_if_fail (osd, OSD_NONE); |
1986 |
|
|
1987 |
return osd_check(osd, x, y); |
return osd_check(osd, TRUE, x, y); |
1988 |
} |
} |