Diff of /trunk/src/osm-gps-map-osd-classic.c

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 100 by harbaum, Tue Sep 8 10:24:11 2009 UTC revision 280 by harbaum, Fri May 21 19:28:16 2010 UTC
# Line 18  Line 18 
18   */   */
19    
20  #include "config.h"  #include "config.h"
21    
22  #include <stdlib.h>  // abs  #include <stdlib.h>  // abs
23    #include <string.h>
24  #include <math.h>    // M_PI/cos()  #include <math.h>    // M_PI/cos()
25    
26  /* parameters that can be overwritten from the config file: */  /* parameters that can be overwritten from the config file: */
27  /* OSD_DIAMETER */  /* OSD_DIAMETER */
28  /* OSD_X, OSD_Y */  /* OSD_X, OSD_Y */
29    
 #define OSD_SCALE  
   
 #define OSD_SCALE_W  120  
 #define OSD_SCALE_H   20  
   
 #ifndef USE_CAIRO  
 #error "OSD control display lacks a non-cairo implementation!"  
 #endif  
   
30  #include <cairo.h>  #include <cairo.h>
31    
32  #include "osm-gps-map.h"  #include "osm-gps-map.h"
33    #include "converter.h"
34  #include "osm-gps-map-osd-classic.h"  #include "osm-gps-map-osd-classic.h"
35    
36    static OsmGpsMapSource_t map_sources[] = {
37        OSM_GPS_MAP_SOURCE_OPENSTREETMAP,
38        OSM_GPS_MAP_SOURCE_OPENSTREETMAP_RENDERER,
39        OSM_GPS_MAP_SOURCE_OPENCYCLEMAP,
40        OSM_GPS_MAP_SOURCE_OSM_PUBLIC_TRANSPORT,
41        OSM_GPS_MAP_SOURCE_GOOGLE_STREET,
42        OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_STREET,
43        OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_SATELLITE,
44        OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_HYBRID
45    };
46    static int num_map_sources = sizeof(map_sources)/sizeof(map_sources[0]);
47    
48    #ifdef OSD_DOUBLEPIXEL
49    #define OSD_DPIX_EXTRA 1
50    #define OSD_DPIX_SKIP  (OSD_FONT_SIZE/2)
51    #else
52    #define OSD_DPIX_EXTRA 0
53    #define OSD_DPIX_SKIP  0
54    #endif
55    
56  //the osd controls  //the osd controls
57  typedef struct {  typedef struct {
58      /* the offscreen representation of the OSD */      /* the offscreen representation of the OSD */
59      cairo_surface_t *overlay;      struct {
60            cairo_surface_t *surface;
61            gboolean rendered;
62    #ifdef OSD_GPS_BUTTON
63            gboolean gps_enabled;
64    #endif
65        } controls;
66    
67    #ifdef OSD_BALLOON
68        //a balloon with additional info
69        struct {
70            cairo_surface_t *surface;
71            int orientation, offset_x, offset_y;
72    
73            gboolean just_created;
74            float lat, lon;
75            OsmGpsMapRect_t rect;
76    
77            /* function called to have the user app draw the contents */
78            OsmGpsMapBalloonCallback cb;
79            gpointer data;
80        } balloon;
81    #endif
82    
83  #ifdef OSD_SCALE  #ifdef OSD_SCALE
84      cairo_surface_t *scale;      struct {
85            cairo_surface_t *surface;
86            int zoom;
87        } scale;
88    #endif
89    
90    #ifdef OSD_CROSSHAIR
91        struct {
92            cairo_surface_t *surface;
93            gboolean rendered;
94        } crosshair;
95    #endif
96    
97    #ifdef OSD_NAV
98        struct {
99            cairo_surface_t *surface;
100            float lat, lon;
101            char *name;
102            gboolean imperial, mode;    // display distance imperial/metric
103            int click_sep;
104        } nav;
105    #endif
106    
107    #ifdef OSD_HEARTRATE
108        struct {
109            cairo_surface_t *surface;
110            gint rate;
111            gboolean ok;
112        } hr;
113    #endif
114    
115    #ifdef OSD_COORDINATES
116        struct {
117            cairo_surface_t *surface;
118            float lat, lon;
119        } coordinates;
120  #endif  #endif
121    
122  #ifdef OSD_SOURCE_SEL  #ifdef OSD_SOURCE_SEL
123      /* values to handle the "source" menu */      struct {
124      cairo_surface_t *map_source;          /* values to handle the "source" menu */
125      gboolean expanded;          cairo_surface_t *surface;
126      gint shift, dir, count;          gboolean expanded;
127      gint handler_id;          gint shift, dir, count;
128      gint width, height;          gint handler_id;
129            gint width, height;
130            gboolean rendered;
131            gint max_h;
132        } source_sel;
133  #endif  #endif
134    
135  } osd_priv_t;  } osd_priv_t;
136    
137    #ifdef OSD_BALLOON
138    /* most visual effects are hardcoded by now, but may be made */
139    /* available via properties later */
140    #ifndef BALLOON_AREA_WIDTH
141    #define BALLOON_AREA_WIDTH           290
142    #endif
143    #ifndef BALLOON_AREA_HEIGHT
144    #define BALLOON_AREA_HEIGHT           75
145    #endif
146    #ifndef BALLOON_CORNER_RADIUS
147    #define BALLOON_CORNER_RADIUS         10
148    #endif
149    
150    #define BALLOON_BORDER               (BALLOON_CORNER_RADIUS/2)
151    #define BALLOON_WIDTH                (priv->balloon.rect.w + 2 * BALLOON_BORDER)
152    #define BALLOON_HEIGHT               (priv->balloon.rect.h + 2 * BALLOON_BORDER)
153    #define BALLOON_TRANSPARENCY         0.8
154    #define POINTER_HEIGHT                20
155    #define POINTER_FOOT_WIDTH            20
156    #define POINTER_OFFSET               (BALLOON_CORNER_RADIUS*3/4)
157    #define BALLOON_SHADOW               (BALLOON_CORNER_RADIUS/2)
158    #define BALLOON_SHADOW_TRANSPARENCY  0.2
159    
160    #define BALLOON_W  (BALLOON_WIDTH + BALLOON_SHADOW)
161    #define BALLOON_H  (BALLOON_HEIGHT + POINTER_HEIGHT + BALLOON_SHADOW)
162    
163    /* draw the bubble shape. this is used twice, once for the shape and once */
164    /* for the shadow */
165    static void
166    osm_gps_map_draw_balloon_shape (cairo_t *cr, int x0, int y0, int x1, int y1,
167           gboolean bottom, int px, int py, int px0, int px1) {
168    
169        cairo_move_to (cr, x0, y0 + BALLOON_CORNER_RADIUS);
170        cairo_arc (cr, x0 + BALLOON_CORNER_RADIUS, y0 + BALLOON_CORNER_RADIUS,
171                   BALLOON_CORNER_RADIUS, -M_PI, -M_PI/2);
172        if(!bottom) {
173            /* insert top pointer */
174            cairo_line_to (cr, px1, y0);
175            cairo_line_to (cr, px, py);
176            cairo_line_to (cr, px0, y0);
177        }
178    
179        cairo_line_to (cr, x1 - BALLOON_CORNER_RADIUS, y0);
180        cairo_arc (cr, x1 - BALLOON_CORNER_RADIUS, y0 + BALLOON_CORNER_RADIUS,
181                   BALLOON_CORNER_RADIUS, -M_PI/2, 0);
182        cairo_line_to (cr, x1 , y1 - BALLOON_CORNER_RADIUS);
183        cairo_arc (cr, x1 - BALLOON_CORNER_RADIUS, y1 - BALLOON_CORNER_RADIUS,
184                   BALLOON_CORNER_RADIUS, 0, M_PI/2);
185        if(bottom) {
186            /* insert bottom pointer */
187            cairo_line_to (cr, px0, y1);
188            cairo_line_to (cr, px, py);
189            cairo_line_to (cr, px1, y1);
190        }
191    
192        cairo_line_to (cr, x0 + BALLOON_CORNER_RADIUS, y1);
193        cairo_arc (cr, x0 + BALLOON_CORNER_RADIUS, y1 - BALLOON_CORNER_RADIUS,
194                   BALLOON_CORNER_RADIUS, M_PI/2, M_PI);
195    
196        cairo_close_path (cr);
197    }
198    
199    static void
200    osd_render_balloon(osm_gps_map_osd_t *osd) {
201        osd_priv_t *priv = (osd_priv_t*)osd->priv;
202    
203        if(!priv->balloon.surface)
204            return;
205        /* get zoom */
206        gint zoom;
207        g_object_get(OSM_GPS_MAP(osd->widget), "zoom", &zoom, NULL);
208    
209        /* ------- convert given coordinate into screen position --------- */
210        gint xs, ys;
211        osm_gps_map_geographic_to_screen (OSM_GPS_MAP(osd->widget),
212                                          priv->balloon.lat, priv->balloon.lon,
213                                          &xs, &ys);
214    
215        gint x0 = 1, y0 = 1;
216    
217        /* check position of this relative to screen center to determine */
218        /* pointer direction ... */
219        int pointer_x, pointer_x0, pointer_x1;
220        int pointer_y;
221    
222        /* ... and calculate position */
223        int orientation = 0;
224        if(xs > osd->widget->allocation.width/2) {
225            priv->balloon.offset_x = -BALLOON_WIDTH + POINTER_OFFSET;
226            pointer_x = x0 - priv->balloon.offset_x;
227            pointer_x0 = pointer_x - (BALLOON_CORNER_RADIUS - POINTER_OFFSET);
228            pointer_x1 = pointer_x0 - POINTER_FOOT_WIDTH;
229            orientation |= 1;
230        } else {
231            priv->balloon.offset_x = -POINTER_OFFSET;
232            pointer_x = x0 - priv->balloon.offset_x;
233            pointer_x1 = pointer_x + (BALLOON_CORNER_RADIUS - POINTER_OFFSET);
234            pointer_x0 = pointer_x1 + POINTER_FOOT_WIDTH;
235        }
236    
237        gboolean bottom = FALSE;
238        if(ys > osd->widget->allocation.height/2) {
239            priv->balloon.offset_y = -BALLOON_HEIGHT - POINTER_HEIGHT;
240            pointer_y = y0 - priv->balloon.offset_y;
241            bottom = TRUE;
242            orientation |= 2;
243        } else {
244            priv->balloon.offset_y = 0;
245            pointer_y = y0 - priv->balloon.offset_y;
246            y0 += POINTER_HEIGHT;
247        }
248    
249        /* if required orientation equals current one, then don't render */
250        /* anything */
251        if(orientation == priv->balloon.orientation)
252            return;
253    
254        priv->balloon.orientation = orientation;
255    
256        /* calculate bottom/right of box */
257        int x1 = x0 + priv->balloon.rect.w + 2*BALLOON_BORDER;
258        int y1 = y0 + priv->balloon.rect.h + 2*BALLOON_BORDER;
259    
260        /* save balloon screen coordinates for later use */
261        priv->balloon.rect.x = x0 + BALLOON_BORDER;
262        priv->balloon.rect.y = y0 + BALLOON_BORDER;
263    
264        g_assert(priv->balloon.surface);
265        cairo_t *cr = cairo_create(priv->balloon.surface);
266        cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
267        cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.0);
268        cairo_paint(cr);
269        cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
270    
271        /* --------- draw shadow --------------- */
272        osm_gps_map_draw_balloon_shape (cr,
273                     x0 + BALLOON_SHADOW, y0 + BALLOON_SHADOW,
274                     x1 + BALLOON_SHADOW, y1 + BALLOON_SHADOW,
275                     bottom, pointer_x, pointer_y,
276                     pointer_x0 + BALLOON_SHADOW, pointer_x1 + BALLOON_SHADOW);
277    
278        cairo_set_source_rgba (cr, 0, 0, 0, BALLOON_SHADOW_TRANSPARENCY);
279        cairo_fill_preserve (cr);
280        cairo_set_source_rgba (cr, 1, 0, 0, 1.0);
281        cairo_set_line_width (cr, 0);
282        cairo_stroke (cr);
283    
284        /* --------- draw main shape ----------- */
285        osm_gps_map_draw_balloon_shape (cr, x0, y0, x1, y1,
286                     bottom, pointer_x, pointer_y, pointer_x0, pointer_x1);
287    
288        cairo_set_source_rgba (cr, 1, 1, 1, BALLOON_TRANSPARENCY);
289        cairo_fill_preserve (cr);
290        cairo_set_source_rgba (cr, 0, 0, 0, BALLOON_TRANSPARENCY);
291        cairo_set_line_width (cr, 1);
292        cairo_stroke (cr);
293    
294        if (priv->balloon.cb) {
295            osm_gps_map_balloon_event_t event;
296    
297            /* clip in case application tries to draw in */
298                /* exceed of the balloon */
299            cairo_rectangle (cr, priv->balloon.rect.x, priv->balloon.rect.y,
300                             priv->balloon.rect.w, priv->balloon.rect.h);
301            cairo_clip (cr);
302            cairo_new_path (cr);  /* current path is not consumed by cairo_clip */
303    
304            /* request the application to draw the balloon contents */
305            event.type = OSM_GPS_MAP_BALLOON_EVENT_TYPE_DRAW;
306            event.data.draw.rect = &priv->balloon.rect;
307            event.data.draw.cr = cr;
308    
309            priv->balloon.cb(&event, priv->balloon.data);
310        }
311    
312        cairo_destroy(cr);
313    }
314    
315    #define OSD_STATE_DOWN  0
316    #define OSD_STATE_UP    1
317    #define OSD_STATE_CHECK 2
318    
319    /* return true if balloon is being displayed and if */
320    /* the given coordinate is within this balloon */
321    static gboolean
322    osd_balloon_check(osm_gps_map_osd_t *osd, gboolean click, gint state, gint x, gint y)
323    {
324        osd_priv_t *priv = (osd_priv_t*)osd->priv;
325    
326        if(!priv->balloon.surface)
327            return FALSE;
328    
329        gint xs, ys;
330        osm_gps_map_geographic_to_screen (OSM_GPS_MAP(osd->widget),
331                                          priv->balloon.lat, priv->balloon.lon,
332                                          &xs, &ys);
333    
334        xs += priv->balloon.rect.x + priv->balloon.offset_x;
335        ys += priv->balloon.rect.y + priv->balloon.offset_y;
336    
337        gboolean is_in =
338            (x > xs) && (x < xs + priv->balloon.rect.w) &&
339            (y > ys) && (y < ys + priv->balloon.rect.h);
340    
341        /* is this a real click or is the application just checking for something? */
342        if(click) {
343    
344            /* handle the fact that the balloon may have been created by the */
345            /* button down event */
346            if(!is_in && state == OSD_STATE_UP && !priv->balloon.just_created) {
347                /* the user actually clicked outside the balloon */
348    
349                /* close the balloon! */
350                osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(osd->widget));
351    
352                /* and inform application about this */
353                if(priv->balloon.cb) {
354                    osm_gps_map_balloon_event_t event;
355                    event.type = OSM_GPS_MAP_BALLOON_EVENT_TYPE_REMOVED;
356                    priv->balloon.cb(&event, priv->balloon.data);
357                }
358    
359            }
360    
361            if(is_in && priv->balloon.cb) {
362                osm_gps_map_balloon_event_t event;
363    
364                /* notify application of click */
365                event.type = OSM_GPS_MAP_BALLOON_EVENT_TYPE_CLICK;
366                event.data.click.x = x - xs;
367                event.data.click.y = y - ys;
368                event.data.click.down = (state == OSD_STATE_DOWN);
369    
370                priv->balloon.cb(&event, priv->balloon.data);
371            }
372        }
373        return is_in;
374    }
375    
376    void osm_gps_map_osd_clear_balloon (OsmGpsMap *map) {
377        g_return_if_fail (OSM_IS_GPS_MAP (map));
378    
379        osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map);
380        g_return_if_fail (osd);
381    
382        osd_priv_t *priv = (osd_priv_t*)osd->priv;
383        g_return_if_fail (priv);
384    
385        if(priv->balloon.surface) {
386            cairo_surface_destroy(priv->balloon.surface);
387            priv->balloon.surface = NULL;
388            priv->balloon.lat = OSM_GPS_MAP_INVALID;
389            priv->balloon.lon = OSM_GPS_MAP_INVALID;
390        }
391        osm_gps_map_redraw(map);
392    }
393    
394    void
395    osm_gps_map_osd_draw_balloon (OsmGpsMap *map, float latitude, float longitude,
396                                  OsmGpsMapBalloonCallback cb, gpointer data) {
397        g_return_if_fail (OSM_IS_GPS_MAP (map));
398    
399        osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map);
400        g_return_if_fail (osd);
401    
402        osd_priv_t *priv = (osd_priv_t*)osd->priv;
403        g_return_if_fail (priv);
404    
405        osm_gps_map_osd_clear_balloon (map);
406    
407        priv->balloon.lat = latitude;
408        priv->balloon.lon = longitude;
409        priv->balloon.cb = cb;
410        priv->balloon.data = data;
411        priv->balloon.just_created = TRUE;
412        priv->balloon.orientation = -1;
413        priv->balloon.rect.w = 0;
414        priv->balloon.rect.h = 0;
415    
416        /* set default size and call app callback */
417        if(!priv->balloon.rect.w || !priv->balloon.rect.h) {
418            osm_gps_map_balloon_event_t event;
419    
420            priv->balloon.rect.w = BALLOON_AREA_WIDTH;
421            priv->balloon.rect.h = BALLOON_AREA_HEIGHT;
422    
423            /* create some temporary surface, so the callback can */
424            /* e.g. determine text extents etc */
425            cairo_surface_t *surface =
426                cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 10,10);
427    
428            event.type = OSM_GPS_MAP_BALLOON_EVENT_TYPE_SIZE_REQUEST;
429            event.data.draw.rect = &priv->balloon.rect;
430            event.data.draw.cr = cairo_create(surface);
431            priv->balloon.cb(&event, priv->balloon.data);
432    
433            cairo_destroy(event.data.draw.cr);
434            cairo_surface_destroy(surface);
435        }
436    
437        /* allocate balloon surface */
438        priv->balloon.surface =
439            cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
440                                       BALLOON_W+2, BALLOON_H+2);
441    
442        osd_render_balloon(osd);
443    
444        osm_gps_map_redraw(map);
445    }
446    
447    #endif // OSD_BALLOON
448    
449  /* position and extent of bounding box */  /* position and extent of bounding box */
450  #ifndef OSD_X  #ifndef OSD_X
451  #define OSD_X      (10)  #define OSD_X      (10)
# Line 187  osd_shape(cairo_t *cr, GdkColor *bg, Gdk Line 574  osd_shape(cairo_t *cr, GdkColor *bg, Gdk
574  #else  #else
575  static void  static void
576  osd_shape(cairo_t *cr) {  osd_shape(cairo_t *cr) {
577      cairo_set_source_rgb (cr, OSD_COLOR_BG);      cairo_set_source_rgba (cr, OSD_COLOR_BG);
578      cairo_fill_preserve (cr);      cairo_fill_preserve (cr);
579      cairo_set_source_rgb (cr, OSD_COLOR);      cairo_set_source_rgb (cr, OSD_COLOR);
580      cairo_set_line_width (cr, 1);      cairo_set_line_width (cr, 1);
# Line 281  osd_check_zoom(gint x, gint y) { Line 668  osd_check_zoom(gint x, gint y) {
668  #define OSD_S_H   (OSD_S_PH + OSD_SHADOW)  #define OSD_S_H   (OSD_S_PH + OSD_SHADOW)
669    
670  /* size of usable area when expanded */  /* size of usable area when expanded */
671  #define OSD_S_AREA_W (priv->width)  #define OSD_S_AREA_W (priv->source_sel.width)
672  #define OSD_S_AREA_H (priv->height)  #define OSD_S_AREA_H (priv->source_sel.height)
673  #define OSD_S_EXP_W  (OSD_S_PW + OSD_S_AREA_W + OSD_SHADOW)  #define OSD_S_EXP_W  (OSD_S_PW + OSD_S_AREA_W + OSD_SHADOW)
674  #define OSD_S_EXP_H  (OSD_S_AREA_H + OSD_SHADOW)  #define OSD_S_EXP_H  (OSD_S_AREA_H + OSD_SHADOW)
675    
676  /* internal value to draw the arrow on the "puller" */  /* internal value to draw the arrow on the "puller" */
677  #define OSD_S_D0  (OSD_S_RAD/2)  #define OSD_S_D0  (OSD_S_RAD/2)
678  #ifndef OSD_FONT_SIZE  #ifndef OSD_FONT_SIZE
679  #define OSD_FONT_SIZE 16.0  #define OSD_FONT_SIZE (16.0)
680  #endif  #endif
681  #define OSD_TEXT_BORDER   (OSD_FONT_SIZE/2)  #define OSD_TEXT_BORDER   (OSD_FONT_SIZE/2)
682  #define OSD_TEXT_SKIP     (OSD_FONT_SIZE/8)  #define OSD_TEXT_SKIP     (OSD_FONT_SIZE/8)
# Line 298  osd_check_zoom(gint x, gint y) { Line 685  osd_check_zoom(gint x, gint y) {
685  /* or the entire menu incl. the puller (expanded) */  /* or the entire menu incl. the puller (expanded) */
686  static void  static void
687  osd_source_shape(osd_priv_t *priv, cairo_t *cr, gint x, gint y) {  osd_source_shape(osd_priv_t *priv, cairo_t *cr, gint x, gint y) {
688      if(!priv->expanded) {      if(!priv->source_sel.expanded) {
689          /* just draw the puller */          /* just draw the puller */
690          cairo_move_to (cr, x + OSD_S_PW, y + OSD_S_PH);          cairo_move_to (cr, x + OSD_S_PW, y + OSD_S_PH);
691          cairo_arc (cr, x+OSD_S_RAD, y+OSD_S_RAD, OSD_S_RAD, M_PI/2, -M_PI/2);          cairo_arc (cr, x+OSD_S_RAD, y+OSD_S_RAD, OSD_S_RAD, M_PI/2, -M_PI/2);
# Line 326  osd_source_content(osm_gps_map_osd_t *os Line 713  osd_source_content(osm_gps_map_osd_t *os
713    
714      int py = offset + OSD_S_RAD - OSD_S_D0;      int py = offset + OSD_S_RAD - OSD_S_D0;
715    
716      if(!priv->expanded) {      if(!priv->source_sel.expanded) {
717          /* draw the "puller" open (<) arrow */          /* draw the "puller" open (<) arrow */
718          cairo_move_to (cr, offset + OSD_S_RAD + OSD_S_D0/2, py);          cairo_move_to (cr, offset + OSD_S_RAD + OSD_S_D0/2, py);
719          cairo_rel_line_to (cr, -OSD_S_D0, +OSD_S_D0);          cairo_rel_line_to (cr, -OSD_S_D0, +OSD_S_D0);
# Line 350  osd_source_content(osm_gps_map_osd_t *os Line 737  osd_source_content(osm_gps_map_osd_t *os
737                                      CAIRO_FONT_SLANT_NORMAL,                                      CAIRO_FONT_SLANT_NORMAL,
738                                      CAIRO_FONT_WEIGHT_BOLD);                                      CAIRO_FONT_WEIGHT_BOLD);
739              cairo_set_font_size (cr, OSD_FONT_SIZE);              cairo_set_font_size (cr, OSD_FONT_SIZE);
740    
741              int i, step = (priv->height - 2*OSD_TEXT_BORDER) /              int i, step = (priv->source_sel.height - 2*OSD_TEXT_BORDER - OSD_DPIX_SKIP) /
742                  OSM_GPS_MAP_SOURCE_LAST;                  (num_map_sources + OSD_DPIX_EXTRA);
743              for(i=OSM_GPS_MAP_SOURCE_NULL+1;i<=OSM_GPS_MAP_SOURCE_LAST;i++) {              for(i=0;i<num_map_sources + OSD_DPIX_EXTRA;i++) {
744                  cairo_text_extents_t extents;                  cairo_text_extents_t extents;
745                  const char *src = osm_gps_map_source_get_friendly_name(i);                  const char *src = NULL;
746    #if OSD_DPIX_EXTRA > 0
747                    /* draw "double pixel" check button */
748                    const char *dpix = _("Double Pixel");
749                    if(i == num_map_sources) {
750                        src = dpix;
751                    } else
752    #endif
753                    src = osm_gps_map_source_get_friendly_name( map_sources[i] );
754    
755                  cairo_text_extents (cr, src, &extents);                  cairo_text_extents (cr, src, &extents);
756    
757                  int x = offset + OSD_S_PW + OSD_TEXT_BORDER;                  int x = offset + OSD_S_PW + OSD_TEXT_BORDER;
758                  int y = offset + step * (i-1) + OSD_TEXT_BORDER;                  int y = offset + step * i + OSD_TEXT_BORDER;
759    
760    #if OSD_DPIX_EXTRA > 0
761                    if(i == num_map_sources) {
762                        int skip3 = OSD_DPIX_SKIP/3;
763    
764                        gboolean dpix;
765                        g_object_get(osd->widget, "double-pixel", &dpix, NULL);
766    
767                        cairo_set_line_width (cr, skip3);
768    
769                        /* draw seperator line */
770                        cairo_move_to (cr, x, y + skip3);
771                        cairo_rel_line_to (cr, OSD_S_AREA_W - 2*OSD_TEXT_BORDER, 0);
772                        cairo_stroke(cr);
773    
774                        y += OSD_DPIX_SKIP;
775    
776                        /* draw check box */
777                        cairo_move_to (cr, x, y);
778                        cairo_rel_line_to (cr, OSD_FONT_SIZE, 0);
779                        cairo_rel_line_to (cr, 0, OSD_FONT_SIZE);
780                        cairo_rel_line_to (cr, -OSD_FONT_SIZE, 0);
781                        cairo_rel_line_to (cr, 0, -OSD_FONT_SIZE);
782                        cairo_stroke(cr);
783    
784                        /* draw check if needed */
785                        if(dpix) {
786                            int space = OSD_FONT_SIZE/4;
787                            cairo_move_to (cr, x + space, y + space);
788                            cairo_rel_line_to (cr, OSD_FONT_SIZE - 2*space, OSD_FONT_SIZE - 2*space);
789                            cairo_stroke(cr);
790    
791                            cairo_move_to (cr, x + OSD_FONT_SIZE - space, y + space);
792                            cairo_rel_line_to (cr, -(OSD_FONT_SIZE - 2*space), OSD_FONT_SIZE - 2*space);
793                            cairo_stroke(cr);
794                        }
795    
796                        x += 1.5 * OSD_FONT_SIZE;
797                    }
798    #endif
799    
800                  /* draw filled rectangle if selected */                  /* draw filled rectangle if selected */
801                  if(source == i) {                  if(source == map_sources[i]) {
802                      cairo_rectangle(cr, x - OSD_TEXT_BORDER/2,                      cairo_rectangle(cr, x - OSD_TEXT_BORDER/2,
803                                      y - OSD_TEXT_SKIP,                                      y - OSD_TEXT_SKIP,
804                                      priv->width - OSD_TEXT_BORDER,                                      priv->source_sel.width - OSD_TEXT_BORDER,
805                                      step + OSD_TEXT_SKIP);                                      step + OSD_TEXT_SKIP);
806                      cairo_fill(cr);                      cairo_fill(cr);
807    
# Line 374  osd_source_content(osm_gps_map_osd_t *os Line 810  osd_source_content(osm_gps_map_osd_t *os
810                      GdkColor bg = osd->widget->style->bg[GTK_STATE_NORMAL];                      GdkColor bg = osd->widget->style->bg[GTK_STATE_NORMAL];
811                      gdk_cairo_set_source_color(cr, &bg);                      gdk_cairo_set_source_color(cr, &bg);
812  #else  #else
813                      cairo_set_source_rgb (cr, OSD_COLOR_BG);                      cairo_set_source_rgba (cr, OSD_COLOR_BG);
814  #endif  #endif
815                  }                  }
816    
# Line 382  osd_source_content(osm_gps_map_osd_t *os Line 818  osd_source_content(osm_gps_map_osd_t *os
818                  cairo_show_text (cr, src);                  cairo_show_text (cr, src);
819    
820                  /* restore color */                  /* restore color */
821                  if(source == i) {                  if(source == map_sources[i]) {
822  #ifndef OSD_COLOR  #ifndef OSD_COLOR
823                      GdkColor fg = osd->widget->style->fg[GTK_STATE_NORMAL];                      GdkColor fg = osd->widget->style->fg[GTK_STATE_NORMAL];
824                      gdk_cairo_set_source_color(cr, &fg);                      gdk_cairo_set_source_color(cr, &fg);
# Line 396  osd_source_content(osm_gps_map_osd_t *os Line 832  osd_source_content(osm_gps_map_osd_t *os
832  }  }
833    
834  static void  static void
835  osd_render_source_sel(osm_gps_map_osd_t *osd) {  osd_render_source_sel(osm_gps_map_osd_t *osd, gboolean force_rerender) {
836      osd_priv_t *priv = (osd_priv_t*)osd->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
837    
838        if(!priv->source_sel.surface ||
839           (priv->source_sel.rendered && !force_rerender))
840            return;
841    
842        priv->source_sel.rendered = TRUE;
843    
844  #ifndef OSD_COLOR  #ifndef OSD_COLOR
845      GdkColor bg = GTK_WIDGET(osd->widget)->style->bg[GTK_STATE_NORMAL];      GdkColor bg = GTK_WIDGET(osd->widget)->style->bg[GTK_STATE_NORMAL];
846      GdkColor fg = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_NORMAL];      GdkColor fg = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_NORMAL];
# Line 406  osd_render_source_sel(osm_gps_map_osd_t Line 848  osd_render_source_sel(osm_gps_map_osd_t
848  #endif  #endif
849    
850      /* draw source selector */      /* draw source selector */
851      cairo_t *cr = cairo_create(priv->map_source);      g_assert(priv->source_sel.surface);
852        cairo_t *cr = cairo_create(priv->source_sel.surface);
853      cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);      cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
854      cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0);      cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0);
855      cairo_paint(cr);      cairo_paint(cr);
# Line 447  osd_source_reallocate(osm_gps_map_osd_t Line 890  osd_source_reallocate(osm_gps_map_osd_t
890      osd_priv_t *priv = (osd_priv_t*)osd->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
891    
892      /* re-allocate offscreen bitmap */      /* re-allocate offscreen bitmap */
893      g_assert (priv->map_source);      g_assert (priv->source_sel.surface);
894    
895      int w = OSD_S_W, h = OSD_S_H;      int w = OSD_S_W, h = OSD_S_H;
896      if(priv->expanded) {      if(priv->source_sel.expanded) {
897          cairo_text_extents_t extents;          cairo_text_extents_t extents;
898    
899          /* determine content size */          /* determine content size */
900          cairo_t *cr = cairo_create(priv->map_source);          g_assert(priv->source_sel.surface);
901            cairo_t *cr = cairo_create(priv->source_sel.surface);
902          cairo_select_font_face (cr, "Sans",          cairo_select_font_face (cr, "Sans",
903                                  CAIRO_FONT_SLANT_NORMAL,                                  CAIRO_FONT_SLANT_NORMAL,
904                                  CAIRO_FONT_WEIGHT_BOLD);                                  CAIRO_FONT_WEIGHT_BOLD);
905          cairo_set_font_size (cr, OSD_FONT_SIZE);          cairo_set_font_size (cr, OSD_FONT_SIZE);
906    
907          /* calculate menu size */          /* calculate menu size */
908          int i, max_h = 0, max_w = 0;          int i,  max_w = 0;
909          for(i=OSM_GPS_MAP_SOURCE_NULL+1;i<=OSM_GPS_MAP_SOURCE_LAST;i++) {          priv->source_sel.max_h = 0;
910              const char *src = osm_gps_map_source_get_friendly_name(i);          for(i=0;i<num_map_sources;i++) {
911                const char *src = osm_gps_map_source_get_friendly_name( map_sources[i] );
912              cairo_text_extents (cr, src, &extents);              cairo_text_extents (cr, src, &extents);
913    
914              if(extents.width > max_w) max_w = extents.width;              if(extents.width > max_w) max_w = extents.width;
915              if(extents.height > max_h) max_h = extents.height;              if(extents.height > priv->source_sel.max_h) priv->source_sel.max_h = extents.height;
916          }          }
917          cairo_destroy(cr);          cairo_destroy(cr);
918    
919          priv->width  = max_w + 2*OSD_TEXT_BORDER;          priv->source_sel.width  = max_w + 2*OSD_TEXT_BORDER;
920          priv->height = OSM_GPS_MAP_SOURCE_LAST *          priv->source_sel.height = (num_map_sources + OSD_DPIX_EXTRA) *
921              (max_h + 2*OSD_TEXT_SKIP) + 2*OSD_TEXT_BORDER;              (priv->source_sel.max_h + 2*OSD_TEXT_SKIP) + 2*OSD_TEXT_BORDER + OSD_DPIX_SKIP;
922    
923          w = OSD_S_EXP_W;          w = OSD_S_EXP_W;
924          h = OSD_S_EXP_H;          h = OSD_S_EXP_H;
925      }      }
926    
927      cairo_surface_destroy(priv->map_source);      cairo_surface_destroy(priv->source_sel.surface);
928      priv->map_source =      priv->source_sel.surface =
929          cairo_image_surface_create(CAIRO_FORMAT_ARGB32, w+2, h+2);          cairo_image_surface_create(CAIRO_FORMAT_ARGB32, w+2, h+2);
930    
931      osd_render_source_sel(osd);      osd_render_source_sel(osd, TRUE);
932  }  }
933    
934  #define OSD_HZ      15  #define OSD_HZ      15
# Line 494  static gboolean osd_source_animate(gpoin Line 939  static gboolean osd_source_animate(gpoin
939      osd_priv_t *priv = (osd_priv_t*)osd->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
940      int diff = OSD_S_EXP_W - OSD_S_W - OSD_S_X;      int diff = OSD_S_EXP_W - OSD_S_W - OSD_S_X;
941      gboolean done = FALSE;      gboolean done = FALSE;
942      priv->count += priv->dir;      priv->source_sel.count += priv->source_sel.dir;
943    
944      /* shifting in */      /* shifting in */
945      if(priv->dir < 0) {      if(priv->source_sel.dir < 0) {
946          if(priv->count <= 0) {          if(priv->source_sel.count <= 0) {
947              priv->count = 0;              priv->source_sel.count = 0;
948              done = TRUE;              done = TRUE;
949          }          }
950      } else {      } else {
951          if(priv->count >= 1000) {          if(priv->source_sel.count >= 1000) {
952              priv->expanded = FALSE;              priv->source_sel.expanded = FALSE;
953              osd_source_reallocate(osd);              osd_source_reallocate(osd);
954    
955              priv->count = 1000;              priv->source_sel.count = 1000;
956              done = TRUE;              done = TRUE;
957          }          }
958      }      }
# Line 515  static gboolean osd_source_animate(gpoin Line 960  static gboolean osd_source_animate(gpoin
960    
961      /* count runs linearly from 0 to 1000, map this nicely onto a position */      /* count runs linearly from 0 to 1000, map this nicely onto a position */
962    
963      /* nicer sinoid mapping */      /* nice sinoid mapping */
964      float m = 0.5-cos(priv->count * M_PI / 1000.0)/2;      float m = 0.5-cos(priv->source_sel.count * M_PI / 1000.0)/2;
965      priv->shift = (osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X) +      priv->source_sel.shift =
966            (osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X) +
967          m * diff;          m * diff;
968    
969        /* make sure the screen is updated */
970      osm_gps_map_repaint(OSM_GPS_MAP(osd->widget));      osm_gps_map_repaint(OSM_GPS_MAP(osd->widget));
971    
972        /* stop animation if done */
973      if(done)      if(done)
974          priv->handler_id = 0;          priv->source_sel.handler_id = 0;
975    
976      return !done;      return !done;
977  }  }
# Line 535  osd_source_toggle(osm_gps_map_osd_t *osd Line 983  osd_source_toggle(osm_gps_map_osd_t *osd
983      osd_priv_t *priv = (osd_priv_t*)osd->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
984    
985      /* ignore clicks while animation is running */      /* ignore clicks while animation is running */
986      if(priv->handler_id)      if(priv->source_sel.handler_id)
987          return;          return;
988    
989      /* expand immediately, collapse is handle at the end of the collapse animation */      /* expand immediately, collapse is handle at the end of the */
990      if(!priv->expanded) {      /* collapse animation */
991          priv->expanded = TRUE;      if(!priv->source_sel.expanded) {
992            priv->source_sel.expanded = TRUE;
993          osd_source_reallocate(osd);          osd_source_reallocate(osd);
994    
995          priv->count = 1000;          priv->source_sel.count = 1000;
996          priv->shift = osd->widget->allocation.width - OSD_S_W;          priv->source_sel.shift = osd->widget->allocation.width - OSD_S_W;
997          priv->dir = -1000/OSD_HZ;          priv->source_sel.dir = -1000/OSD_HZ;
998      } else {      } else {
999          priv->count =  0;          priv->source_sel.count =  0;
1000          priv->shift = osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X;          priv->source_sel.shift = osd->widget->allocation.width -
1001          priv->dir = +1000/OSD_HZ;              OSD_S_EXP_W + OSD_S_X;
1002            priv->source_sel.dir = +1000/OSD_HZ;
1003      }      }
1004    
1005      priv->handler_id = gtk_timeout_add(OSD_TIME/OSD_HZ, osd_source_animate, osd);      /* start timer to handle animation */
1006        priv->source_sel.handler_id = gtk_timeout_add(OSD_TIME/OSD_HZ,
1007                                                      osd_source_animate, osd);
1008  }  }
1009    
1010  /* check if the user clicked inside the source selection area */  /* check if the user clicked inside the source selection area */
1011  static osd_button_t  static osd_button_t
1012  osd_source_check(osm_gps_map_osd_t *osd, gint x, gint y) {  osd_source_check(osm_gps_map_osd_t *osd, gint state, gint x, gint y) {
1013      osd_priv_t *priv = (osd_priv_t*)osd->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
1014    
1015      if(!priv->expanded)      if(!priv->source_sel.expanded)
1016          x -= osd->widget->allocation.width - OSD_S_W;          x -= osd->widget->allocation.width - OSD_S_W;
1017      else      else
1018          x -= osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X;          x -= osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X;
# Line 575  osd_source_check(osm_gps_map_osd_t *osd, Line 1027  osd_source_check(osm_gps_map_osd_t *osd,
1027          /* really within puller shape? */          /* really within puller shape? */
1028          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)) {
1029              /* expand source selector */              /* expand source selector */
1030              osd_source_toggle(osd);              if(state == OSD_STATE_DOWN)
1031                    osd_source_toggle(osd);
1032    
1033              /* tell upper layers that user clicked some background element */              /* tell upper layers that user clicked some background element */
1034              /* of the OSD */              /* of the OSD */
# Line 584  osd_source_check(osm_gps_map_osd_t *osd, Line 1037  osd_source_check(osm_gps_map_osd_t *osd,
1037      }      }
1038    
1039      /* check for clicks into data area */      /* check for clicks into data area */
1040      if(priv->expanded && !priv->handler_id) {      if(priv->source_sel.expanded && !priv->source_sel.handler_id) {
1041          /* re-adjust from puller top to content top */          /* re-adjust from puller top to content top */
1042          if(OSD_S_Y < 0)          if(OSD_S_Y < 0)
1043              y += OSD_S_EXP_H - OSD_S_PH;              y += OSD_S_EXP_H - OSD_S_PH;
# Line 594  osd_source_check(osm_gps_map_osd_t *osd, Line 1047  osd_source_check(osm_gps_map_osd_t *osd,
1047             y > 0 &&             y > 0 &&
1048             y < OSD_S_EXP_H) {             y < OSD_S_EXP_H) {
1049    
1050              int step = (priv->height - 2*OSD_TEXT_BORDER)              int step = (priv->source_sel.height - 2*OSD_TEXT_BORDER - OSD_DPIX_SKIP)
1051                  / OSM_GPS_MAP_SOURCE_LAST;                  / (num_map_sources + OSD_DPIX_EXTRA);
1052    
1053              y -= OSD_TEXT_BORDER - OSD_TEXT_SKIP;              y -= OSD_TEXT_BORDER - OSD_TEXT_SKIP;
1054              y /= step;              int py = y / step;
             y += 1;  
1055    
1056              gint old = 0;              if(state == OSD_STATE_DOWN) {
1057              g_object_get(osd->widget, "map-source", &old, NULL);                  gint old = 0;
1058                    g_object_get(osd->widget, "map-source", &old, NULL);
1059    
1060                    if(py >= 0 &&
1061                       py < num_map_sources &&
1062                       old != map_sources[py]) {
1063                        g_object_set(osd->widget, "map-source", map_sources[py], NULL);
1064    
1065                        osd_render_source_sel(osd, TRUE);
1066                        osm_gps_map_repaint(OSM_GPS_MAP(osd->widget));
1067                        osm_gps_map_redraw(OSM_GPS_MAP(osd->widget));
1068                    }
1069    
1070              if(y > OSM_GPS_MAP_SOURCE_NULL &&  #if OSD_DPIX_EXTRA > 0
1071                 y <= OSM_GPS_MAP_SOURCE_LAST &&                  if(py >= num_map_sources) {
1072                 old != y) {                      y -= num_map_sources * (priv->source_sel.max_h + 2*OSD_TEXT_SKIP ) +
1073                  g_object_set(osd->widget, "map-source", y, NULL);                          OSD_TEXT_SKIP + OSD_DPIX_SKIP;
1074                        if(y >= 0) {
1075                  osd_render_source_sel(osd);                          gboolean dpix = 0;
1076                  osm_gps_map_repaint(OSM_GPS_MAP(osd->widget));                          g_object_get(osd->widget, "double-pixel", &dpix, NULL);
1077                            g_object_set(osd->widget, "double-pixel", !dpix, NULL);
1078                            osd_render_source_sel(osd, TRUE);
1079                            osm_gps_map_repaint(OSM_GPS_MAP(osd->widget));
1080                            osm_gps_map_redraw(OSM_GPS_MAP(osd->widget));
1081                        }
1082                    }
1083    #endif
1084              }              }
1085    
1086              /* return "clicked in OSD background" to prevent further */              /* return "clicked in OSD background" to prevent further */
1087              /* processing by application */              /* processing by application */
1088              return OSD_BG;              return OSD_BG;
# Line 623  osd_source_check(osm_gps_map_osd_t *osd, Line 1093  osd_source_check(osm_gps_map_osd_t *osd,
1093  }  }
1094  #endif // OSD_SOURCE_SEL  #endif // OSD_SOURCE_SEL
1095    
 static osd_button_t  
 osd_check(osm_gps_map_osd_t *osd, gint x, gint y) {  
     osd_button_t but = OSD_NONE;  
   
 #ifdef OSD_SOURCE_SEL  
     /* the source selection area is handles internally */  
     but = osd_source_check(osd, x, y);  
     if(but != OSD_NONE)  
         return but;  
 #endif  
   
     x -= OSD_X;  
     y -= OSD_Y;  
   
     if(OSD_X < 0)  
         x -= (osd->widget->allocation.width - OSD_W);  
   
     if(OSD_Y < 0)  
         y -= (osd->widget->allocation.height - OSD_H);  
   
     /* first do a rough test for the OSD area. */  
     /* this is just to avoid an unnecessary detailed test */  
     if(x > 0 && x < OSD_W && y > 0 && y < OSD_H) {  
 #ifndef OSD_NO_DPAD  
         but = osd_check_dpad(x, y);  
 #endif  
   
         if(but == OSD_NONE)  
             but = osd_check_zoom(x, y);  
     }  
   
     return but;  
 }  
   
1096  #ifndef OSD_NO_DPAD  #ifndef OSD_NO_DPAD
1097  static void  static void
1098  osd_dpad_labels(cairo_t *cr, gint x, gint y) {  osd_dpad_labels(cairo_t *cr, gint x, gint y) {
# Line 727  osd_zoom_labels(cairo_t *cr, gint x, gin Line 1163  osd_zoom_labels(cairo_t *cr, gint x, gin
1163      cairo_line_to (cr, x + Z_RIGHT + Z_LEN, y + Z_MID);      cairo_line_to (cr, x + Z_RIGHT + Z_LEN, y + Z_MID);
1164  }  }
1165    
1166  static char *  #ifdef OSD_COORDINATES
1167  dist_str_metric(int dist)  
1168  {  #ifndef OSD_COORDINATES_FONT_SIZE
1169      if(dist<1000)  #define OSD_COORDINATES_FONT_SIZE (12.0)
1170          return g_strdup_printf("%u m",  dist);  #endif
1171    
1172    #define OSD_COORDINATES_OFFSET (OSD_COORDINATES_FONT_SIZE/6)
1173    
1174    #define OSD_COORDINATES_W  (8*OSD_COORDINATES_FONT_SIZE+2*OSD_COORDINATES_OFFSET)
1175    #define OSD_COORDINATES_H  (2*OSD_COORDINATES_FONT_SIZE+2*OSD_COORDINATES_OFFSET+OSD_COORDINATES_FONT_SIZE/4)
1176    
1177    /* these can be overwritten with versions that support */
1178    /* localization */
1179    #ifndef OSD_COORDINATES_CHR_N
1180    #define OSD_COORDINATES_CHR_N  "N"
1181    #endif
1182    #ifndef OSD_COORDINATES_CHR_S
1183    #define OSD_COORDINATES_CHR_S  "S"
1184    #endif
1185    #ifndef OSD_COORDINATES_CHR_E
1186    #define OSD_COORDINATES_CHR_E  "E"
1187    #endif
1188    #ifndef OSD_COORDINATES_CHR_W
1189    #define OSD_COORDINATES_CHR_W  "W"
1190    #endif
1191    
1192    
1193    
1194    /* this is the classic geocaching notation */
1195    static char
1196    *osd_latitude_str(float latitude) {
1197        char *c = OSD_COORDINATES_CHR_N;
1198        float integral, fractional;
1199    
1200        if(isnan(latitude))
1201            return NULL;
1202    
1203        if(latitude < 0) {
1204            latitude = fabs(latitude);
1205            c = OSD_COORDINATES_CHR_S;
1206        }
1207    
1208        fractional = modff(latitude, &integral);
1209    
1210        return g_strdup_printf("%s %02d° %06.3f'",
1211                               c, (int)integral, fractional*60.0);
1212    }
1213    
1214    static char
1215    *osd_longitude_str(float longitude) {
1216        char *c = OSD_COORDINATES_CHR_E;
1217        float integral, fractional;
1218    
1219        if(isnan(longitude))
1220            return NULL;
1221    
1222        if(longitude < 0) {
1223            longitude = fabs(longitude);
1224            c = OSD_COORDINATES_CHR_W;
1225        }
1226    
1227      return g_strdup_printf("%u km", dist/1000);      fractional = modff(longitude, &integral);
1228    
1229        return g_strdup_printf("%s %03d° %06.3f'",
1230                               c, (int)integral, fractional*60.0);
1231    }
1232    
1233    /* render a string at the given screen position */
1234    static int
1235    osd_render_centered_text(cairo_t *cr, int y, int width, char *text) {
1236        if(!text) return y;
1237    
1238        char *p = g_malloc(strlen(text)+4);  // space for "...\n"
1239        strcpy(p, text);
1240    
1241        cairo_text_extents_t extents;
1242        memset(&extents, 0, sizeof(cairo_text_extents_t));
1243        cairo_text_extents (cr, p, &extents);
1244        g_assert(extents.width != 0.0);
1245    
1246        /* check if text needs to be truncated */
1247        int trunc_at = strlen(text);
1248        while(extents.width > width) {
1249    
1250            /* cut off all utf8 multibyte remains so the actual */
1251            /* truncation only deals with one byte */
1252            while((p[trunc_at-1] & 0xc0) == 0x80) {
1253                trunc_at--;
1254                g_assert(trunc_at > 0);
1255            }
1256    
1257            trunc_at--;
1258            g_assert(trunc_at > 0);
1259    
1260            strcpy(p+trunc_at, "...");
1261            cairo_text_extents (cr, p, &extents);
1262        }
1263    
1264        cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
1265        cairo_set_line_width (cr, OSD_COORDINATES_FONT_SIZE/6);
1266        cairo_move_to (cr, (width - extents.width)/2, y - extents.y_bearing);
1267        cairo_text_path (cr, p);
1268        cairo_stroke (cr);
1269    
1270        cairo_set_source_rgb(cr, 0.0, 0.0, 0.0);
1271        cairo_move_to (cr, (width - extents.width)/2, y - extents.y_bearing);
1272        cairo_show_text (cr, p);
1273    
1274        g_free(p);
1275    
1276        /* skip + 1/5 line */
1277        return y + 6*OSD_COORDINATES_FONT_SIZE/5;
1278  }  }
1279    
1280  static void  static void
1281  osd_render_scale(osm_gps_map_osd_t *osd)  osd_render_coordinates(osm_gps_map_osd_t *osd)
1282  {  {
1283      osd_priv_t *priv = (osd_priv_t*)osd->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
     float m_per_pix = osm_gps_map_get_scale(OSM_GPS_MAP(osd->widget));  
1284    
1285      /* first fill with transparency */      if(!priv->coordinates.surface)
1286      cairo_t *cr = cairo_create(priv->scale);          return;
     cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);  
     cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0);  
     //    cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.2);  
     cairo_paint(cr);  
     cairo_set_operator(cr, CAIRO_OPERATOR_OVER);  
1287    
1288      /* determine the size of the scale width in meters */      /* get current map position */
1289      float width = (OSD_SCALE_W-2) * m_per_pix;      gfloat lat, lon;
1290      printf("width = %f meters\n", width);      g_object_get(osd->widget, "latitude", &lat, "longitude", &lon, NULL);
1291    
1292        /* check if position has changed enough to require redraw */
1293        if(!isnan(priv->coordinates.lat) && !isnan(priv->coordinates.lon))
1294            /* 1/60000 == 1/1000 minute */
1295            if((fabsf(lat - priv->coordinates.lat) < 1/60000) &&
1296               (fabsf(lon - priv->coordinates.lon) < 1/60000))
1297                return;
1298    
1299      /* scale this to useful values */      priv->coordinates.lat = lat;
1300      int exp = logf(width)*M_LOG10E;      priv->coordinates.lon = lon;
     int mant = width/pow(10,exp);  
     printf("mant = %d, exp = %d \n", mant, exp);  
1301    
1302      int width_metric = mant * pow(10,exp);      /* first fill with transparency */
     char *dist_str = dist_str_metric(width_metric);  
     width_metric /= m_per_pix;  
     printf("metric scale width = %d pixels: %s\n", width_metric, dist_str);  
1303    
1304      int font_size = 12;      g_assert(priv->coordinates.surface);
1305        cairo_t *cr = cairo_create(priv->coordinates.surface);
1306        cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
1307        //    cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 0.5);
1308        cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.0);
1309        cairo_paint(cr);
1310        cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
1311    
1312      cairo_select_font_face (cr, "Sans",      cairo_select_font_face (cr, "Sans",
1313                              CAIRO_FONT_SLANT_NORMAL,                              CAIRO_FONT_SLANT_NORMAL,
1314                              CAIRO_FONT_WEIGHT_BOLD);                              CAIRO_FONT_WEIGHT_BOLD);
1315      cairo_set_font_size (cr, font_size);      cairo_set_font_size (cr, OSD_COORDINATES_FONT_SIZE);
     cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 1.0);  
1316    
1317      cairo_text_extents_t extents;      char *latitude = osd_latitude_str(lat);
1318      cairo_text_extents (cr, dist_str, &extents);      char *longitude = osd_longitude_str(lon);
1319    
1320      cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);      int y = OSD_COORDINATES_OFFSET;
1321      cairo_move_to (cr, font_size/3, font_size);      y = osd_render_centered_text(cr, y, OSD_COORDINATES_W, latitude);
1322      cairo_text_path (cr, dist_str);      y = osd_render_centered_text(cr, y, OSD_COORDINATES_W, longitude);
1323      cairo_set_line_width (cr, 2);  
1324      cairo_stroke (cr);      g_free(latitude);
1325        g_free(longitude);
1326    
1327      cairo_set_source_rgb(cr, 0.0, 0.0, 0.0);      cairo_destroy(cr);
1328      cairo_move_to (cr, font_size/3, font_size);  }
1329      cairo_show_text (cr, dist_str);  #endif  // OSD_COORDINATES
1330    
1331      /* draw white line */  #ifdef OSD_NAV
1332      cairo_set_line_cap  (cr, CAIRO_LINE_CAP_ROUND);  #define OSD_NAV_W  (8*OSD_COORDINATES_FONT_SIZE+2*OSD_COORDINATES_OFFSET)
1333      cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 1.0);  #define OSD_NAV_H  (11*OSD_COORDINATES_FONT_SIZE)
     cairo_set_line_width (cr, 4);  
     cairo_move_to (cr, 2, 2*font_size/3);  
     cairo_rel_line_to (cr, 0,  2*font_size/3);  
     cairo_rel_line_to (cr, width_metric, 0);  
     cairo_rel_line_to (cr, 0, -2*font_size/3);  
     cairo_stroke(cr);  
1334    
1335      /* draw black line */  /* http://mathforum.org/library/drmath/view/55417.html */
1336      cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 1.0);  static float get_bearing(float lat1, float lon1, float lat2, float lon2) {
1337      cairo_set_line_width (cr, 2);    return atan2( sin(lon2 - lon1) * cos(lat2),
1338      cairo_move_to (cr, 2, 2*font_size/3);                  cos(lat1) * sin(lat2) -
1339      cairo_rel_line_to (cr, 0,  2*font_size/3);                  sin(lat1) * cos(lat2) * cos(lon2 - lon1));
1340      cairo_rel_line_to (cr, width_metric, 0);  }
     cairo_rel_line_to (cr, 0, -2*font_size/3);  
     cairo_stroke(cr);  
1341    
1342      /* xyz */  /* http://mathforum.org/library/drmath/view/51722.html */
1343    static float get_distance(float lat1, float lon1, float lat2, float lon2) {
1344      float aob = acos(cos(lat1) * cos(lat2) * cos(lon2 - lon1) +
1345                       sin(lat1) * sin(lat2));
1346    
1347      cairo_destroy(cr);    return(aob * 6371000.0);     /* great circle radius in meters */
1348  }  }
1349    
1350  static void  static void
1351  osd_render(osm_gps_map_osd_t *osd)  osd_render_nav(osm_gps_map_osd_t *osd)
1352  {  {
1353      osd_priv_t *priv = (osd_priv_t*)osd->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
1354    
1355  #ifndef OSD_COLOR      if(!priv->nav.surface || isnan(priv->nav.lat) || isnan(priv->nav.lon))
1356      GdkColor bg = GTK_WIDGET(osd->widget)->style->bg[GTK_STATE_NORMAL];          return;
     GdkColor fg = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_NORMAL];  
     GdkColor da = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_INSENSITIVE];  
 #endif  
1357    
1358      /* first fill with transparency */      /* first fill with transparency */
1359      cairo_t *cr = cairo_create(priv->overlay);      g_assert(priv->nav.surface);
1360        cairo_t *cr = cairo_create(priv->nav.surface);
1361      cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);      cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
1362      cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0);      cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0);
1363      cairo_paint(cr);      cairo_paint(cr);
1364      cairo_set_operator(cr, CAIRO_OPERATOR_OVER);      cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
1365    
1366      /* --------- draw zoom and dpad shape shadow ----------- */      cairo_select_font_face (cr, "Sans",
1367  #ifdef OSD_SHADOW_ENABLE                              CAIRO_FONT_SLANT_NORMAL,
1368      osd_zoom_shape(cr, 1+OSD_SHADOW, 1+OSD_SHADOW);                              CAIRO_FONT_WEIGHT_BOLD);
1369      osd_shape_shadow(cr);      cairo_set_font_size (cr, OSD_COORDINATES_FONT_SIZE);
 #ifndef OSD_NO_DPAD  
     osd_dpad_shape(cr, 1+OSD_SHADOW, 1+OSD_SHADOW);  
     osd_shape_shadow(cr);  
 #endif  
 #endif  
1370    
1371      /* --------- draw zoom and dpad shape ----------- */      char *latitude = osd_latitude_str(priv->nav.lat);
1372        char *longitude = osd_longitude_str(priv->nav.lon);
1373    
1374        int y = OSD_COORDINATES_OFFSET;
1375        y = osd_render_centered_text(cr, y, OSD_NAV_W, priv->nav.name);
1376        y = osd_render_centered_text(cr, y, OSD_NAV_W, latitude);
1377        y = osd_render_centered_text(cr, y, OSD_NAV_W, longitude);
1378    
1379        g_free(latitude);
1380        g_free(longitude);
1381    
1382        /* everything below this is the compass. we need to know this */
1383        /* to differ between coordinate clicks and compass clicks */
1384        priv->nav.click_sep = y;
1385    
1386        /* draw the compass */
1387        int radius = (OSD_NAV_H - y - 5*OSD_COORDINATES_FONT_SIZE/4)/2;
1388        if(radius > OSD_NAV_W/2)
1389            radius = OSD_NAV_W/2;
1390    
1391      osd_zoom_shape(cr, 1, 1);      int x = OSD_NAV_W/2+1;
1392  #ifndef OSD_COLOR      y += radius;
1393      osd_shape(cr, &bg, &fg);  
1394  #else      cairo_stroke (cr);
1395      osd_shape(cr);  
1396  #endif      /* draw background */
1397  #ifndef OSD_NO_DPAD      cairo_arc(cr, x, y, radius, 0,  2*M_PI);
1398      osd_dpad_shape(cr, 1, 1);      cairo_set_source_rgba (cr, 1, 1, 1, 0.5);
1399  #ifndef OSD_COLOR      cairo_fill_preserve (cr);
1400      osd_shape(cr, &bg, &fg);      cairo_set_source_rgb (cr, 0, 0, 0);
1401  #else      cairo_set_line_width (cr, 1);
1402      osd_shape(cr);      cairo_stroke (cr);
1403  #endif  
1404  #endif      /* draw pointer */
1405    #define ARROW_WIDTH     0.3
1406    #define ARROW_LENGTH    0.7
1407    
1408        coord_t mpos, *pos = osm_gps_map_get_gps (OSM_GPS_MAP(osd->widget));
1409        if(priv->nav.mode) {
1410            gfloat lat, lon;
1411            g_object_get(osd->widget, "latitude", &lat, "longitude", &lon, NULL);
1412            mpos.rlat = deg2rad(lat);
1413            mpos.rlon = deg2rad(lon);
1414            pos = &mpos;
1415        }
1416    
1417        if(pos) {
1418            float arot = get_bearing(pos->rlat, pos->rlon,
1419                         deg2rad(priv->nav.lat), deg2rad(priv->nav.lon));
1420    
1421            cairo_move_to(cr,
1422                          x + radius *  ARROW_LENGTH *  sin(arot),
1423                          y + radius *  ARROW_LENGTH * -cos(arot));
1424    
1425            cairo_line_to(cr,
1426                          x + radius * -ARROW_LENGTH *  sin(arot+ARROW_WIDTH),
1427                          y + radius * -ARROW_LENGTH * -cos(arot+ARROW_WIDTH));
1428    
1429            cairo_line_to(cr,
1430                          x + radius * -0.5 * ARROW_LENGTH *  sin(arot),
1431                          y + radius * -0.5 * ARROW_LENGTH * -cos(arot));
1432    
1433            cairo_line_to(cr,
1434                          x + radius * -ARROW_LENGTH *  sin(arot-ARROW_WIDTH),
1435                          y + radius * -ARROW_LENGTH * -cos(arot-ARROW_WIDTH));
1436    
1437            cairo_close_path(cr);
1438            if(priv->nav.mode)
1439                cairo_set_source_rgb (cr, 0, 0, 0);
1440            else
1441                cairo_set_source_rgb (cr, 0, 0, 0.8);
1442    
1443            cairo_fill (cr);
1444    
1445            y += radius + OSD_COORDINATES_FONT_SIZE/4;
1446    
1447            float dist = get_distance(pos->rlat, pos->rlon,
1448                            deg2rad(priv->nav.lat), deg2rad(priv->nav.lon));
1449    
1450            char *dist_str = NULL;
1451            if(!priv->nav.imperial) {
1452                /* metric is easy ... */
1453                if(dist<1000)
1454                    dist_str = g_strdup_printf("%u m", (int)dist);
1455                else
1456                    dist_str = g_strdup_printf("%.1f km", dist/1000);
1457            } else {
1458                /* and now the hard part: scale for useful imperial values :-( */
1459                /* try to convert to feet, 1ft == 0.3048 m */
1460    
1461                if(dist/(3*0.3048) >= 1760.0)      /* more than 1760 yard? */
1462                    dist_str = g_strdup_printf("%.1f mi", dist/(0.3048*3*1760.0));
1463                else if(dist/0.3048 >= 100)        /* more than 100 feet? */
1464                    dist_str = g_strdup_printf("%.1f yd", dist/(0.3048*3));
1465                else
1466                    dist_str = g_strdup_printf("%.0f ft", dist/0.3048);
1467            }
1468    
1469            y = osd_render_centered_text(cr, y, OSD_NAV_W, dist_str);
1470            g_free(dist_str);
1471        }
1472    
1473        cairo_destroy(cr);
1474    }
1475    
1476    /* check if the user clicked inside the source selection area */
1477    static osd_button_t
1478    osd_nav_check(osm_gps_map_osd_t *osd, gint state, gint x, gint y) {
1479        osd_priv_t *priv = (osd_priv_t*)osd->priv;
1480    
1481        if(!priv->nav.surface || state == OSD_STATE_DOWN)
1482            return OSD_NONE;
1483    
1484        x -= OSD_X;
1485        if(OSD_X < 0)
1486            x -= (osd->widget->allocation.width - OSD_NAV_W);
1487    
1488        y -= (osd->widget->allocation.height - OSD_NAV_H)/2;
1489    
1490        if(x >= 0 && y >= 0 && x <= OSD_NAV_W && y <= OSD_NAV_H) {
1491            if(y < priv->nav.click_sep)
1492                osm_gps_map_set_center(OSM_GPS_MAP(osd->widget),
1493                                       priv->nav.lat, priv->nav.lon);
1494            else {
1495                priv->nav.mode = !priv->nav.mode;
1496                osm_gps_map_redraw(OSM_GPS_MAP(osd->widget));
1497            }
1498        }
1499    
1500        return OSD_NONE;
1501    }
1502    
1503    void osm_gps_map_osd_clear_nav (OsmGpsMap *map) {
1504        g_return_if_fail (OSM_IS_GPS_MAP (map));
1505    
1506        osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map);
1507        g_return_if_fail (osd);
1508    
1509        osd_priv_t *priv = (osd_priv_t*)osd->priv;
1510        g_return_if_fail (priv);
1511    
1512        if(priv->nav.surface) {
1513            cairo_surface_destroy(priv->nav.surface);
1514            priv->nav.surface = NULL;
1515            priv->nav.lat = OSM_GPS_MAP_INVALID;
1516            priv->nav.lon = OSM_GPS_MAP_INVALID;
1517            if(priv->nav.name) g_free(priv->nav.name);
1518        }
1519        osm_gps_map_redraw(map);
1520    }
1521    
1522    void
1523    osm_gps_map_osd_draw_nav (OsmGpsMap *map, gboolean imperial,
1524                              float latitude, float longitude, char *name) {
1525        g_return_if_fail (OSM_IS_GPS_MAP (map));
1526    
1527        osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map);
1528        g_return_if_fail (osd);
1529    
1530        osd_priv_t *priv = (osd_priv_t*)osd->priv;
1531        g_return_if_fail (priv);
1532    
1533        osm_gps_map_osd_clear_nav (map);
1534    
1535        /* allocate balloon surface */
1536        priv->nav.surface =
1537            cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
1538                                       OSD_NAV_W+2, OSD_NAV_H+2);
1539    
1540        priv->nav.lat = latitude;
1541        priv->nav.lon = longitude;
1542        priv->nav.name = g_strdup(name);
1543        priv->nav.imperial = imperial;
1544    
1545        osd_render_nav(osd);
1546    
1547        osm_gps_map_redraw(map);
1548    }
1549    
1550    #endif // OSD_NAV
1551    
1552    #ifdef OSD_HEARTRATE
1553    #ifndef OSD_HR_FONT_SIZE
1554    #define OSD_HR_FONT_SIZE 60
1555    #endif
1556    #define OSD_HR_W  3*OSD_HR_FONT_SIZE
1557    #define OSD_HR_H  OSD_HR_FONT_SIZE
1558    
1559    #ifndef OSD_HR_Y
1560    #define OSD_HR_Y OSD_Y
1561    #endif
1562    
1563    static void
1564    osd_render_heart_shape(cairo_t *cr, gint x, gint y, gint s) {
1565        cairo_move_to (cr, x-s, y-s/4);
1566        cairo_curve_to (cr, x-s, y-s,     x,   y-s,     x,   y-s/4);
1567        cairo_curve_to (cr, x,   y-s,     x+s, y-s,     x+s, y-s/4);
1568        cairo_curve_to (cr, x+s, y+s/2,   x,   y+3*s/4, x,   y+s);
1569        cairo_curve_to (cr, x,   y+3*s/4, x-s, y+s/2,   x-s, y-s/4);
1570    }
1571    
1572    static void
1573    osd_render_heart(cairo_t *cr, gint x, gint y, gint s, gboolean ok) {
1574        /* xyz */
1575    
1576        cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
1577    
1578        osd_render_heart_shape(cr, x, y, s);
1579        cairo_set_source_rgb (cr, 1, 1, 1);
1580        cairo_set_line_width (cr, s/2);
1581        cairo_stroke(cr);
1582    
1583        osd_render_heart_shape(cr, x, y, s);
1584        if(ok) cairo_set_source_rgb (cr, 1, 0, 0);
1585        else   cairo_set_source_rgb (cr, 0.8, 0.8, 0.8);
1586        cairo_fill_preserve (cr);
1587        cairo_set_line_width (cr, s/5);
1588    
1589        cairo_stroke(cr);
1590    }
1591    
1592    static void
1593    osd_render_hr(osm_gps_map_osd_t *osd)
1594    {
1595        osd_priv_t *priv = (osd_priv_t*)osd->priv;
1596    
1597        if(!priv->hr.surface)
1598            return;
1599    
1600        /* first fill with transparency */
1601        g_assert(priv->hr.surface);
1602        cairo_t *cr = cairo_create(priv->hr.surface);
1603        cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
1604        cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.0);
1605        cairo_paint(cr);
1606        cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
1607    
1608        cairo_select_font_face (cr, "Sans",
1609                                CAIRO_FONT_SLANT_NORMAL,
1610                                CAIRO_FONT_WEIGHT_BOLD);
1611        cairo_set_font_size (cr, OSD_HR_FONT_SIZE);
1612    
1613        char str[5];
1614        if(priv->hr.rate > 0)
1615            snprintf(str, 4, "%03u", priv->hr.rate);
1616        else if(priv->hr.rate == OSD_HR_INVALID)
1617            strcpy(str, "?");
1618        else if(priv->hr.rate == OSD_HR_ERROR)
1619            strcpy(str, "Err");
1620        else
1621            g_assert(priv->hr.rate != OSD_HR_NONE);
1622    
1623        cairo_text_extents_t extents;
1624        cairo_text_extents (cr, str, &extents);
1625    
1626        cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
1627        cairo_set_line_width (cr, OSD_HR_FONT_SIZE/10);
1628    
1629        cairo_move_to (cr, OSD_HR_W/2 - extents.width/2 + OSD_HR_FONT_SIZE/4,
1630                           OSD_HR_H/2 - extents.y_bearing/2);
1631        cairo_text_path (cr, str);
1632        cairo_stroke (cr);
1633    
1634        cairo_set_source_rgb(cr, 0.0, 0.0, 0.0);
1635        cairo_move_to (cr, OSD_HR_W/2 - extents.width/2 + OSD_HR_FONT_SIZE/4,
1636                           OSD_HR_H/2 - extents.y_bearing/2);
1637        cairo_show_text (cr, str);
1638    
1639        osd_render_heart(cr, OSD_HR_W/2 - extents.width/2 - OSD_HR_FONT_SIZE/8,
1640                         OSD_HR_H/2, OSD_HR_FONT_SIZE/5, priv->hr.ok);
1641    
1642    
1643        cairo_destroy(cr);
1644    }
1645    
1646    void
1647    osm_gps_map_osd_draw_hr (OsmGpsMap *map, gboolean ok, gint rate) {
1648        g_return_if_fail (OSM_IS_GPS_MAP (map));
1649    
1650        osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map);
1651        g_return_if_fail (osd);
1652    
1653        osd_priv_t *priv = (osd_priv_t*)osd->priv;
1654        g_return_if_fail (priv);
1655    
1656        /* allocate heart rate surface */
1657        if(rate != OSD_HR_NONE && !priv->hr.surface)
1658            priv->hr.surface =
1659                cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
1660                                           OSD_HR_W, OSD_HR_H);
1661    
1662        if(rate == OSD_HR_NONE && priv->hr.surface) {
1663            cairo_surface_destroy(priv->hr.surface);
1664            priv->hr.surface = NULL;
1665        }
1666    
1667        if(priv->hr.rate != rate || priv->hr.ok != ok) {
1668            priv->hr.rate = rate;
1669            priv->hr.ok = ok;
1670            osd_render_hr(osd);
1671        }
1672    
1673        osm_gps_map_redraw(map);
1674    }
1675    
1676    #endif // OSD_HEARTRATE
1677    
1678    static osd_button_t
1679    osd_check_int(osm_gps_map_osd_t *osd, gboolean click, gint state, gint x, gint y) {
1680        osd_button_t but = OSD_NONE;
1681    
1682    #ifdef OSD_BALLOON
1683        if(state == OSD_STATE_DOWN) {
1684            /* needed to handle balloons that are created at click */
1685            osd_priv_t *priv = (osd_priv_t*)osd->priv;
1686            priv->balloon.just_created = FALSE;
1687        }
1688    #endif
1689    
1690    #ifdef OSD_SOURCE_SEL
1691        /* the source selection area is handles internally */
1692        but = osd_source_check(osd, state, x, y);
1693    #endif
1694    
1695    #ifdef OSD_NAV
1696        if(but == OSD_NONE) {
1697            /* the source selection area is handles internally */
1698            but = osd_nav_check(osd, state, x, y);
1699        }
1700    #endif
1701    
1702        if(but == OSD_NONE) {
1703            gint mx = x - OSD_X;
1704            gint my = y - OSD_Y;
1705    
1706            if(OSD_X < 0)
1707                mx -= (osd->widget->allocation.width - OSD_W);
1708    
1709            if(OSD_Y < 0)
1710                my -= (osd->widget->allocation.height - OSD_H);
1711    
1712            /* first do a rough test for the OSD area. */
1713            /* this is just to avoid an unnecessary detailed test */
1714            if(mx > 0 && mx < OSD_W && my > 0 && my < OSD_H) {
1715    #ifndef OSD_NO_DPAD
1716                but = osd_check_dpad(mx, my);
1717    #endif
1718            }
1719    
1720            if(but == OSD_NONE)
1721                but = osd_check_zoom(mx, my);
1722        }
1723    
1724    #ifdef OSD_BALLOON
1725        if(but == OSD_NONE) {
1726            /* check if user clicked into balloon */
1727            if(osd_balloon_check(osd, click, state, x, y))
1728                but = OSD_BG;
1729        }
1730    #endif
1731    
1732        return but;
1733    }
1734    
1735    
1736    #ifdef OSD_CROSSHAIR
1737    
1738    #ifndef OSD_CROSSHAIR_RADIUS
1739    #define OSD_CROSSHAIR_RADIUS 10
1740    #endif
1741    
1742    #define OSD_CROSSHAIR_TICK  (OSD_CROSSHAIR_RADIUS/2)
1743    #define OSD_CROSSHAIR_BORDER (OSD_CROSSHAIR_TICK + OSD_CROSSHAIR_RADIUS/4)
1744    #define OSD_CROSSHAIR_W  ((OSD_CROSSHAIR_RADIUS+OSD_CROSSHAIR_BORDER)*2)
1745    #define OSD_CROSSHAIR_H  ((OSD_CROSSHAIR_RADIUS+OSD_CROSSHAIR_BORDER)*2)
1746    
1747    static void
1748    osd_render_crosshair_shape(cairo_t *cr) {
1749        cairo_arc (cr, OSD_CROSSHAIR_W/2, OSD_CROSSHAIR_H/2,
1750                   OSD_CROSSHAIR_RADIUS, 0,  2*M_PI);
1751    
1752        cairo_move_to (cr, OSD_CROSSHAIR_W/2 - OSD_CROSSHAIR_RADIUS,
1753                       OSD_CROSSHAIR_H/2);
1754        cairo_rel_line_to (cr, -OSD_CROSSHAIR_TICK, 0);
1755        cairo_move_to (cr, OSD_CROSSHAIR_W/2 + OSD_CROSSHAIR_RADIUS,
1756                       OSD_CROSSHAIR_H/2);
1757        cairo_rel_line_to (cr,  OSD_CROSSHAIR_TICK, 0);
1758    
1759        cairo_move_to (cr, OSD_CROSSHAIR_W/2,
1760                       OSD_CROSSHAIR_H/2 - OSD_CROSSHAIR_RADIUS);
1761        cairo_rel_line_to (cr, 0, -OSD_CROSSHAIR_TICK);
1762        cairo_move_to (cr, OSD_CROSSHAIR_W/2,
1763                       OSD_CROSSHAIR_H/2 + OSD_CROSSHAIR_RADIUS);
1764        cairo_rel_line_to (cr, 0, OSD_CROSSHAIR_TICK);
1765    
1766        cairo_stroke (cr);
1767    }
1768    
1769    static void
1770    osd_render_crosshair(osm_gps_map_osd_t *osd)
1771    {
1772        osd_priv_t *priv = (osd_priv_t*)osd->priv;
1773    
1774        if(!priv->crosshair.surface || priv->crosshair.rendered)
1775            return;
1776    
1777        priv->crosshair.rendered = TRUE;
1778    
1779        /* first fill with transparency */
1780        g_assert(priv->crosshair.surface);
1781        cairo_t *cr = cairo_create(priv->crosshair.surface);
1782        cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
1783        cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.0);
1784        cairo_paint(cr);
1785        cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
1786    
1787        cairo_set_line_cap  (cr, CAIRO_LINE_CAP_ROUND);
1788    
1789        cairo_set_source_rgba (cr, 1.0, 1.0, 1.0, 0.5);
1790        cairo_set_line_width (cr, OSD_CROSSHAIR_RADIUS/2);
1791        osd_render_crosshair_shape(cr);
1792    
1793        cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 0.5);
1794        cairo_set_line_width (cr, OSD_CROSSHAIR_RADIUS/4);
1795        osd_render_crosshair_shape(cr);
1796    
1797        cairo_destroy(cr);
1798    }
1799    #endif
1800    
1801    #ifdef OSD_SCALE
1802    
1803    #ifndef OSD_SCALE_FONT_SIZE
1804    #define OSD_SCALE_FONT_SIZE (12.0)
1805    #endif
1806    #define OSD_SCALE_W   (10*OSD_SCALE_FONT_SIZE)
1807    #define OSD_SCALE_H   (5*OSD_SCALE_FONT_SIZE/2)
1808    
1809    /* various parameters used to create the scale */
1810    #define OSD_SCALE_H2   (OSD_SCALE_H/2)
1811    #define OSD_SCALE_TICK (2*OSD_SCALE_FONT_SIZE/3)
1812    #define OSD_SCALE_M    (OSD_SCALE_H2 - OSD_SCALE_TICK)
1813    #define OSD_SCALE_I    (OSD_SCALE_H2 + OSD_SCALE_TICK)
1814    #define OSD_SCALE_FD   (OSD_SCALE_FONT_SIZE/4)
1815    
1816    static void
1817    osd_render_scale(osm_gps_map_osd_t *osd)
1818    {
1819        osd_priv_t *priv = (osd_priv_t*)osd->priv;
1820    
1821        if(!priv->scale.surface)
1822            return;
1823    
1824        /* this only needs to be rendered if the zoom has changed */
1825        gint zoom;
1826        g_object_get(OSM_GPS_MAP(osd->widget), "zoom", &zoom, NULL);
1827        if(zoom == priv->scale.zoom)
1828            return;
1829    
1830        priv->scale.zoom = zoom;
1831    
1832        float m_per_pix = osm_gps_map_get_scale(OSM_GPS_MAP(osd->widget));
1833    
1834        /* first fill with transparency */
1835        g_assert(priv->scale.surface);
1836        cairo_t *cr = cairo_create(priv->scale.surface);
1837        cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
1838        cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0);
1839        // pink for testing:    cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.2);
1840        cairo_paint(cr);
1841        cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
1842    
1843        /* determine the size of the scale width in meters */
1844        float width = (OSD_SCALE_W-OSD_SCALE_FONT_SIZE/6) * m_per_pix;
1845    
1846        /* scale this to useful values */
1847        int exp = logf(width)*M_LOG10E;
1848        int mant = width/pow(10,exp);
1849        int width_metric = mant * pow(10,exp);
1850        char *dist_str = NULL;
1851        if(width_metric<1000)
1852            dist_str = g_strdup_printf("%u m", width_metric);
1853        else
1854            dist_str = g_strdup_printf("%u km", width_metric/1000);
1855        width_metric /= m_per_pix;
1856    
1857        /* and now the hard part: scale for useful imperial values :-( */
1858        /* try to convert to feet, 1ft == 0.3048 m */
1859        width /= 0.3048;
1860        float imp_scale = 0.3048;
1861        char *dist_imp_unit = "ft";
1862    
1863        if(width >= 100) {
1864            /* 1yd == 3 feet */
1865            width /= 3.0;
1866            imp_scale *= 3.0;
1867            dist_imp_unit = "yd";
1868    
1869            if(width >= 1760.0) {
1870                /* 1mi == 1760 yd */
1871                width /= 1760.0;
1872                imp_scale *= 1760.0;
1873                dist_imp_unit = "mi";
1874            }
1875        }
1876    
1877        /* also convert this to full tens/hundreds */
1878        exp = logf(width)*M_LOG10E;
1879        mant = width/pow(10,exp);
1880        int width_imp = mant * pow(10,exp);
1881        char *dist_str_imp = g_strdup_printf("%u %s", width_imp, dist_imp_unit);
1882    
1883        /* convert back to pixels */
1884        width_imp *= imp_scale;
1885        width_imp /= m_per_pix;
1886    
1887        cairo_select_font_face (cr, "Sans",
1888                                CAIRO_FONT_SLANT_NORMAL,
1889                                CAIRO_FONT_WEIGHT_BOLD);
1890        cairo_set_font_size (cr, OSD_SCALE_FONT_SIZE);
1891        cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 1.0);
1892    
1893        cairo_text_extents_t extents;
1894        cairo_text_extents (cr, dist_str, &extents);
1895    
1896        cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
1897        cairo_set_line_width (cr, OSD_SCALE_FONT_SIZE/6);
1898        cairo_move_to (cr, 2*OSD_SCALE_FD, OSD_SCALE_H2-OSD_SCALE_FD);
1899        cairo_text_path (cr, dist_str);
1900        cairo_stroke (cr);
1901        cairo_move_to (cr, 2*OSD_SCALE_FD,
1902                       OSD_SCALE_H2+OSD_SCALE_FD + extents.height);
1903        cairo_text_path (cr, dist_str_imp);
1904        cairo_stroke (cr);
1905    
1906        cairo_set_source_rgb(cr, 0.0, 0.0, 0.0);
1907        cairo_move_to (cr, 2*OSD_SCALE_FD, OSD_SCALE_H2-OSD_SCALE_FD);
1908        cairo_show_text (cr, dist_str);
1909        cairo_move_to (cr, 2*OSD_SCALE_FD,
1910                       OSD_SCALE_H2+OSD_SCALE_FD + extents.height);
1911        cairo_show_text (cr, dist_str_imp);
1912    
1913        g_free(dist_str);
1914        g_free(dist_str_imp);
1915    
1916        /* draw white line */
1917        cairo_set_line_cap  (cr, CAIRO_LINE_CAP_ROUND);
1918        cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 1.0);
1919        cairo_set_line_width (cr, OSD_SCALE_FONT_SIZE/3);
1920        cairo_move_to (cr, OSD_SCALE_FONT_SIZE/6, OSD_SCALE_M);
1921        cairo_rel_line_to (cr, 0,  OSD_SCALE_TICK);
1922        cairo_rel_line_to (cr, width_metric, 0);
1923        cairo_rel_line_to (cr, 0, -OSD_SCALE_TICK);
1924        cairo_stroke(cr);
1925        cairo_move_to (cr, OSD_SCALE_FONT_SIZE/6, OSD_SCALE_I);
1926        cairo_rel_line_to (cr, 0, -OSD_SCALE_TICK);
1927        cairo_rel_line_to (cr, width_imp, 0);
1928        cairo_rel_line_to (cr, 0, +OSD_SCALE_TICK);
1929        cairo_stroke(cr);
1930    
1931        /* draw black line */
1932        cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 1.0);
1933        cairo_set_line_width (cr, OSD_SCALE_FONT_SIZE/6);
1934        cairo_move_to (cr, OSD_SCALE_FONT_SIZE/6, OSD_SCALE_M);
1935        cairo_rel_line_to (cr, 0,  OSD_SCALE_TICK);
1936        cairo_rel_line_to (cr, width_metric, 0);
1937        cairo_rel_line_to (cr, 0, -OSD_SCALE_TICK);
1938        cairo_stroke(cr);
1939        cairo_move_to (cr, OSD_SCALE_FONT_SIZE/6, OSD_SCALE_I);
1940        cairo_rel_line_to (cr, 0, -OSD_SCALE_TICK);
1941        cairo_rel_line_to (cr, width_imp, 0);
1942        cairo_rel_line_to (cr, 0, +OSD_SCALE_TICK);
1943        cairo_stroke(cr);
1944    
1945        cairo_destroy(cr);
1946    }
1947    #endif
1948    
1949    static void
1950    osd_render_controls(osm_gps_map_osd_t *osd)
1951    {
1952        osd_priv_t *priv = (osd_priv_t*)osd->priv;
1953    
1954        if(!priv->controls.surface)
1955            return;
1956    
1957        if(priv->controls.rendered
1958    #ifdef OSD_GPS_BUTTON
1959           && (priv->controls.gps_enabled == (osd->cb != NULL))
1960    #endif
1961           )
1962            return;
1963    
1964    #ifdef OSD_GPS_BUTTON
1965        priv->controls.gps_enabled = (osd->cb != NULL);
1966    #endif
1967        priv->controls.rendered = TRUE;
1968    
1969    #ifndef OSD_COLOR
1970        GdkColor bg = GTK_WIDGET(osd->widget)->style->bg[GTK_STATE_NORMAL];
1971        GdkColor fg = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_NORMAL];
1972        GdkColor da = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_INSENSITIVE];
1973    #endif
1974    
1975        /* first fill with transparency */
1976        g_assert(priv->controls.surface);
1977        cairo_t *cr = cairo_create(priv->controls.surface);
1978        cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
1979        cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0);
1980        cairo_paint(cr);
1981        cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
1982    
1983        /* --------- draw zoom and dpad shape shadow ----------- */
1984    #ifdef OSD_SHADOW_ENABLE
1985        osd_zoom_shape(cr, 1+OSD_SHADOW, 1+OSD_SHADOW);
1986        osd_shape_shadow(cr);
1987    #ifndef OSD_NO_DPAD
1988        osd_dpad_shape(cr, 1+OSD_SHADOW, 1+OSD_SHADOW);
1989        osd_shape_shadow(cr);
1990    #endif
1991    #endif
1992    
1993        /* --------- draw zoom and dpad shape ----------- */
1994    
1995        osd_zoom_shape(cr, 1, 1);
1996    #ifndef OSD_COLOR
1997        osd_shape(cr, &bg, &fg);
1998    #else
1999        osd_shape(cr);
2000    #endif
2001    #ifndef OSD_NO_DPAD
2002        osd_dpad_shape(cr, 1, 1);
2003    #ifndef OSD_COLOR
2004        osd_shape(cr, &bg, &fg);
2005    #else
2006        osd_shape(cr);
2007    #endif
2008    #endif
2009    
2010      /* --------- draw zoom and dpad labels --------- */      /* --------- draw zoom and dpad labels --------- */
2011    
# Line 892  osd_render(osm_gps_map_osd_t *osd) Line 2045  osd_render(osm_gps_map_osd_t *osd)
2045      cairo_stroke(cr);      cairo_stroke(cr);
2046    
2047      cairo_destroy(cr);      cairo_destroy(cr);
2048    }
2049    
2050    static void
2051    osd_render(osm_gps_map_osd_t *osd)
2052    {
2053        /* this function is actually called pretty often since the */
2054        /* OSD contents may have changed (due to a coordinate/zoom change). */
2055        /* The different OSD parts have to make sure that they don't */
2056        /* render unneccessarily often and thus waste CPU power */
2057    
2058        osd_render_controls(osd);
2059    
2060  #ifdef OSD_SOURCE_SEL  #ifdef OSD_SOURCE_SEL
2061      osd_render_source_sel(osd);      osd_render_source_sel(osd, FALSE);
2062  #endif  #endif
2063    
2064  #ifdef OSD_SCALE  #ifdef OSD_SCALE
2065      osd_render_scale(osd);      osd_render_scale(osd);
2066  #endif  #endif
2067    
2068    #ifdef OSD_CROSSHAIR
2069        osd_render_crosshair(osd);
2070    #endif
2071    
2072    #ifdef OSD_NAV
2073        osd_render_nav(osd);
2074    #endif
2075    
2076    #ifdef OSD_COORDINATES
2077        osd_render_coordinates(osd);
2078    #endif
2079  }  }
2080    
2081  static void  static void
# Line 909  osd_draw(osm_gps_map_osd_t *osd, GdkDraw Line 2085  osd_draw(osm_gps_map_osd_t *osd, GdkDraw
2085    
2086      /* OSD itself uses some off-screen rendering, so check if the */      /* OSD itself uses some off-screen rendering, so check if the */
2087      /* offscreen buffer is present and create it if not */      /* offscreen buffer is present and create it if not */
2088      if(!priv->overlay) {      if(!priv->controls.surface) {
2089          /* create overlay ... */          /* create overlay ... */
2090          priv->overlay =          priv->controls.surface =
2091              cairo_image_surface_create(CAIRO_FORMAT_ARGB32, OSD_W+2, OSD_H+2);              cairo_image_surface_create(CAIRO_FORMAT_ARGB32, OSD_W+2, OSD_H+2);
2092    
2093            priv->controls.rendered = FALSE;
2094    #ifdef OSD_GPS_BUTTON
2095            priv->controls.gps_enabled = FALSE;
2096    #endif
2097    
2098  #ifdef OSD_SOURCE_SEL  #ifdef OSD_SOURCE_SEL
2099          /* the initial OSD state is alway not-expanded */          /* the initial OSD state is alway not-expanded */
2100          priv->map_source =          priv->source_sel.surface =
2101              cairo_image_surface_create(CAIRO_FORMAT_ARGB32,              cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
2102                                             OSD_S_W+2, OSD_S_H+2);                                             OSD_S_W+2, OSD_S_H+2);
2103            priv->source_sel.rendered = FALSE;
2104  #endif  #endif
2105    
2106  #ifdef OSD_SCALE  #ifdef OSD_SCALE
2107          priv->scale =          priv->scale.surface =
2108                cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
2109                                           OSD_SCALE_W, OSD_SCALE_H);
2110            priv->scale.zoom = -1;
2111    #endif
2112    
2113    #ifdef OSD_CROSSHAIR
2114            priv->crosshair.surface =
2115              cairo_image_surface_create(CAIRO_FORMAT_ARGB32,              cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
2116                                         OSD_SCALE_W+2, OSD_SCALE_H+2);                                         OSD_CROSSHAIR_W, OSD_CROSSHAIR_H);
2117            priv->crosshair.rendered = FALSE;
2118    #endif
2119    
2120    #ifdef OSD_COORDINATES
2121            priv->coordinates.surface =
2122                cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
2123                                           OSD_COORDINATES_W, OSD_COORDINATES_H);
2124    
2125            priv->coordinates.lat = priv->coordinates.lon = OSM_GPS_MAP_INVALID;
2126  #endif  #endif
2127    
2128          /* ... and render it */          /* ... and render it */
# Line 934  osd_draw(osm_gps_map_osd_t *osd, GdkDraw Line 2132  osd_draw(osm_gps_map_osd_t *osd, GdkDraw
2132      // now draw this onto the original context      // now draw this onto the original context
2133      cairo_t *cr = gdk_cairo_create(drawable);      cairo_t *cr = gdk_cairo_create(drawable);
2134    
2135      int x = OSD_X, y = OSD_Y;      gint x, y;
2136      if(OSD_X < 0)  
2137          x = osd->widget->allocation.width - OSD_W + OSD_X;  #ifdef OSD_SCALE
2138        x =  OSD_X;
2139        y = -OSD_Y;
2140        if(x < 0) x += osd->widget->allocation.width - OSD_SCALE_W;
2141        if(y < 0) y += osd->widget->allocation.height - OSD_SCALE_H;
2142    
2143        cairo_set_source_surface(cr, priv->scale.surface, x, y);
2144        cairo_paint(cr);
2145    #endif
2146    
2147    #ifdef OSD_CROSSHAIR
2148        x = (osd->widget->allocation.width - OSD_CROSSHAIR_W)/2;
2149        y = (osd->widget->allocation.height - OSD_CROSSHAIR_H)/2;
2150    
2151        cairo_set_source_surface(cr, priv->crosshair.surface, x, y);
2152        cairo_paint(cr);
2153    #endif
2154    
2155    #ifdef OSD_NAV
2156        if(priv->nav.surface) {
2157            x =  OSD_X;
2158            if(x < 0) x += osd->widget->allocation.width - OSD_NAV_W;
2159            y = (osd->widget->allocation.height - OSD_NAV_H)/2;
2160    
2161            cairo_set_source_surface(cr, priv->nav.surface, x, y);
2162            cairo_paint(cr);
2163        }
2164    #endif
2165    
2166    #ifdef OSD_COORDINATES
2167        x = -OSD_X;
2168        y = -OSD_Y;
2169        if(x < 0) x += osd->widget->allocation.width - OSD_COORDINATES_W;
2170        if(y < 0) y += osd->widget->allocation.height - OSD_COORDINATES_H;
2171    
2172        cairo_set_source_surface(cr, priv->coordinates.surface, x, y);
2173        cairo_paint(cr);
2174    #endif
2175    
2176    #ifdef OSD_HEARTRATE
2177        if(priv->hr.surface) {
2178            x = (osd->widget->allocation.width - OSD_HR_W)/2;
2179            y = OSD_HR_Y;
2180            if(y < 0) y += osd->widget->allocation.height - OSD_COORDINATES_H;
2181    
2182            cairo_set_source_surface(cr, priv->hr.surface, x, y);
2183            cairo_paint(cr);
2184        }
2185    #endif
2186    
2187    #ifdef OSD_BALLOON
2188        if(priv->balloon.surface) {
2189    
2190            /* convert given lat lon into screen coordinates */
2191            gint x, y;
2192            osm_gps_map_geographic_to_screen (OSM_GPS_MAP(osd->widget),
2193                                          priv->balloon.lat, priv->balloon.lon,
2194                                          &x, &y);
2195    
2196            /* check if balloon needs to be rerendered */
2197            osd_render_balloon(osd);
2198    
2199            cairo_set_source_surface(cr, priv->balloon.surface,
2200                                     x + priv->balloon.offset_x,
2201                                     y + priv->balloon.offset_y);
2202            cairo_paint(cr);
2203        }
2204    #endif
2205    
2206      if(OSD_Y < 0)      x = OSD_X;
2207          y = osd->widget->allocation.height - OSD_H + OSD_Y;      if(x < 0)
2208            x += osd->widget->allocation.width - OSD_W;
2209    
2210        y = OSD_Y;
2211        if(y < 0)
2212            y += osd->widget->allocation.height - OSD_H;
2213    
2214      cairo_set_source_surface(cr, priv->overlay, x, y);      cairo_set_source_surface(cr, priv->controls.surface, x, y);
2215      cairo_paint(cr);      cairo_paint(cr);
2216    
2217  #ifdef OSD_SOURCE_SEL  #ifdef OSD_SOURCE_SEL
2218      if(!priv->handler_id) {      if(!priv->source_sel.handler_id) {
2219          /* the OSD source selection is not being animated */          /* the OSD source selection is not being animated */
2220          if(!priv->expanded)          if(!priv->source_sel.expanded)
2221              x = osd->widget->allocation.width - OSD_S_W;              x = osd->widget->allocation.width - OSD_S_W;
2222          else          else
2223              x = osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X;              x = osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X;
2224      } else      } else
2225          x = priv->shift;          x = priv->source_sel.shift;
2226    
2227      y = OSD_S_Y;      y = OSD_S_Y;
2228      if(OSD_S_Y < 0) {      if(OSD_S_Y < 0) {
2229          if(!priv->expanded)          if(!priv->source_sel.expanded)
2230              y = osd->widget->allocation.height - OSD_S_H + OSD_S_Y;              y = osd->widget->allocation.height - OSD_S_H + OSD_S_Y;
2231          else          else
2232              y = osd->widget->allocation.height - OSD_S_EXP_H + OSD_S_Y;              y = osd->widget->allocation.height - OSD_S_EXP_H + OSD_S_Y;
2233      }      }
2234    
2235      cairo_set_source_surface(cr, priv->map_source, x, y);      cairo_set_source_surface(cr, priv->source_sel.surface, x, y);
     cairo_paint(cr);  
 #endif  
   
 #ifdef OSD_SCALE  
     x =  OSD_X;  
     y = -OSD_Y;  
     if(x < 0) x += osd->widget->allocation.width - OSD_SCALE_W;  
     if(y < 0) y += osd->widget->allocation.height - OSD_SCALE_H;  
   
     cairo_set_source_surface(cr, priv->scale, x, y);  
2236      cairo_paint(cr);      cairo_paint(cr);
2237  #endif  #endif
2238    
# Line 984  osd_free(osm_gps_map_osd_t *osd) Line 2244  osd_free(osm_gps_map_osd_t *osd)
2244  {  {
2245      osd_priv_t *priv = (osd_priv_t *)(osd->priv);      osd_priv_t *priv = (osd_priv_t *)(osd->priv);
2246    
2247      if (priv->overlay)      if (priv->controls.surface)
2248           cairo_surface_destroy(priv->overlay);           cairo_surface_destroy(priv->controls.surface);
2249    
2250  #ifdef OSD_SOURCE_SEL  #ifdef OSD_SOURCE_SEL
2251      if(priv->handler_id)      if(priv->source_sel.handler_id)
2252          gtk_timeout_remove(priv->handler_id);          gtk_timeout_remove(priv->source_sel.handler_id);
2253    
2254      if (priv->map_source)      if (priv->source_sel.surface)
2255           cairo_surface_destroy(priv->map_source);           cairo_surface_destroy(priv->source_sel.surface);
2256  #endif  #endif
2257    
2258  #ifdef OSD_SCALE  #ifdef OSD_SCALE
2259      if (priv->scale)      if (priv->scale.surface)
2260           cairo_surface_destroy(priv->scale);           cairo_surface_destroy(priv->scale.surface);
2261    #endif
2262    
2263    #ifdef OSD_CROSSHAIR
2264        if (priv->crosshair.surface)
2265             cairo_surface_destroy(priv->crosshair.surface);
2266    #endif
2267    
2268    #ifdef OSD_NAV
2269        if (priv->nav.surface)
2270             cairo_surface_destroy(priv->nav.surface);
2271    #endif
2272    
2273    #ifdef OSD_COORDINATES
2274        if (priv->coordinates.surface)
2275             cairo_surface_destroy(priv->coordinates.surface);
2276    #endif
2277    
2278    #ifdef OSD_BALLOON
2279        if (priv->balloon.surface)
2280             cairo_surface_destroy(priv->balloon.surface);
2281    #endif
2282    
2283    #ifdef OSD_HEARTRATE
2284        if (priv->hr.surface)
2285             cairo_surface_destroy(priv->hr.surface);
2286  #endif  #endif
2287    
2288      g_free(priv);      g_free(priv);
2289        osd->priv = NULL;
2290  }  }
2291    
2292  static gboolean  static gboolean
# Line 1008  osd_busy(osm_gps_map_osd_t *osd) Line 2294  osd_busy(osm_gps_map_osd_t *osd)
2294  {  {
2295  #ifdef OSD_SOURCE_SEL  #ifdef OSD_SOURCE_SEL
2296      osd_priv_t *priv = (osd_priv_t *)(osd->priv);      osd_priv_t *priv = (osd_priv_t *)(osd->priv);
2297      return (priv->handler_id != 0);      return (priv->source_sel.handler_id != 0);
2298  #else  #else
2299      return FALSE;      return FALSE;
2300  #endif  #endif
2301  }  }
2302    
2303    static osd_button_t
2304    osd_check(osm_gps_map_osd_t *osd, gboolean down, gint x, gint y) {
2305        return osd_check_int(osd, TRUE, down?OSD_STATE_DOWN:OSD_STATE_UP, x, y);
2306    }
2307    
2308  static osm_gps_map_osd_t osd_classic = {  static osm_gps_map_osd_t osd_classic = {
2309      .widget     = NULL,      .widget     = NULL,
2310    
# Line 1033  static osm_gps_map_osd_t osd_classic = { Line 2324  static osm_gps_map_osd_t osd_classic = {
2324  void  void
2325  osm_gps_map_osd_classic_init(OsmGpsMap *map)  osm_gps_map_osd_classic_init(OsmGpsMap *map)
2326  {  {
2327      osd_priv_t *priv = osd_classic.priv = g_new0(osd_priv_t, 1);      osd_priv_t *priv = g_new0(osd_priv_t, 1);
2328    
2329        /* reset entries to default value */
2330        osd_classic.widget = NULL;
2331        osd_classic.cb     = NULL;
2332        osd_classic.data   = NULL;
2333        osd_classic.priv   = priv;
2334    
2335      osd_classic.priv = priv;  #ifdef OSD_BALLOON
2336        priv->balloon.lat = OSM_GPS_MAP_INVALID;
2337        priv->balloon.lon = OSM_GPS_MAP_INVALID;
2338    #endif
2339    
2340    #ifdef OSD_HEARTRATE
2341        priv->hr.rate = OSD_HR_NONE;
2342    #endif
2343    
2344      osm_gps_map_register_osd(map, &osd_classic);      osm_gps_map_register_osd(map, &osd_classic);
2345  }  }
# Line 1064  osm_gps_map_osd_check(OsmGpsMap *map, gi Line 2368  osm_gps_map_osd_check(OsmGpsMap *map, gi
2368      osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map);      osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map);
2369      g_return_val_if_fail (osd, OSD_NONE);      g_return_val_if_fail (osd, OSD_NONE);
2370    
2371      return osd_check(osd, x, y);      return osd_check_int(osd, FALSE, OSD_STATE_CHECK, x, y);
2372  }  }
Legend:
Removed from v.100  
changed lines
  Added in v.280