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

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revision 110 by harbaum, Sat Sep 12 20:56:35 2009 UTC revision 144 by harbaum, Tue Oct 27 08:38:31 2009 UTC
# Line 19  Line 19 
19    
20  #include "config.h"  #include "config.h"
21  #include <stdlib.h>  // abs  #include <stdlib.h>  // abs
22    #include <string.h>
23  #include <math.h>    // M_PI/cos()  #include <math.h>    // M_PI/cos()
24    
25  /* parameters that can be overwritten from the config file: */  /* parameters that can be overwritten from the config file: */
# Line 32  Line 33 
33  #include <cairo.h>  #include <cairo.h>
34    
35  #include "osm-gps-map.h"  #include "osm-gps-map.h"
36    #include "converter.h"
37  #include "osm-gps-map-osd-classic.h"  #include "osm-gps-map-osd-classic.h"
38    
39  //the osd controls  //the osd controls
# Line 45  typedef struct { Line 47  typedef struct {
47  #endif  #endif
48      } controls;      } controls;
49    
50    #ifdef OSD_BALLOON
51        //a balloon with additional info
52        struct {
53            cairo_surface_t *surface;
54            int orientation, offset_x, offset_y;
55    
56            gboolean just_created;
57            float lat, lon;
58            OsmGpsMapRect_t rect;
59    
60            /* function called to have the user app draw the contents */
61            OsmGpsMapBalloonCallback cb;
62            gpointer data;
63        } balloon;
64    #endif
65    
66  #ifdef OSD_SCALE  #ifdef OSD_SCALE
67      struct {      struct {
68          cairo_surface_t *surface;          cairo_surface_t *surface;
# Line 59  typedef struct { Line 77  typedef struct {
77      } crosshair;      } crosshair;
78  #endif  #endif
79    
80    #ifdef OSD_NAV
81        struct {
82            cairo_surface_t *surface;
83            float lat, lon;
84            char *name;
85            gboolean imperial;    // display distance imperial/metric
86        } nav;
87    #endif
88    
89  #ifdef OSD_COORDINATES  #ifdef OSD_COORDINATES
90      struct {      struct {
91          cairo_surface_t *surface;          cairo_surface_t *surface;
# Line 74  typedef struct { Line 101  typedef struct {
101          gint shift, dir, count;          gint shift, dir, count;
102          gint handler_id;          gint handler_id;
103          gint width, height;          gint width, height;
104            gboolean rendered;
105      } source_sel;      } source_sel;
106  #endif  #endif
107    
108  } osd_priv_t;  } osd_priv_t;
109    
110    #ifdef OSD_BALLOON
111    /* most visual effects are hardcoded by now, but may be made */
112    /* available via properties later */
113    #ifndef BALLOON_AREA_WIDTH
114    #define BALLOON_AREA_WIDTH           290
115    #endif
116    #ifndef BALLOON_AREA_HEIGHT
117    #define BALLOON_AREA_HEIGHT           75
118    #endif
119    #ifndef BALLOON_CORNER_RADIUS
120    #define BALLOON_CORNER_RADIUS         10
121    #endif
122    
123    #define BALLOON_BORDER               (BALLOON_CORNER_RADIUS/2)
124    #define BALLOON_WIDTH                (BALLOON_AREA_WIDTH + 2 * BALLOON_BORDER)
125    #define BALLOON_HEIGHT               (BALLOON_AREA_HEIGHT + 2 * BALLOON_BORDER)
126    #define BALLOON_TRANSPARENCY         0.8
127    #define POINTER_HEIGHT                20
128    #define POINTER_FOOT_WIDTH            20
129    #define POINTER_OFFSET               (BALLOON_CORNER_RADIUS*3/4)
130    #define BALLOON_SHADOW               (BALLOON_CORNER_RADIUS/2)
131    #define BALLOON_SHADOW_TRANSPARENCY  0.2
132    
133    #define BALLOON_W  (BALLOON_WIDTH + BALLOON_SHADOW)
134    #define BALLOON_H  (BALLOON_HEIGHT + POINTER_HEIGHT + BALLOON_SHADOW)
135    
136    #define CLOSE_BUTTON_RADIUS   (BALLOON_CORNER_RADIUS)
137    
138    #define FIN   printf("entering function %s\n", __func__);
139    #define FOUT  printf("leaving function %s\n", __func__);
140    
141    /* draw the bubble shape. this is used twice, once for the shape and once */
142    /* for the shadow */
143    static void
144    osm_gps_map_draw_balloon_shape (cairo_t *cr, int x0, int y0, int x1, int y1,
145           gboolean bottom, int px, int py, int px0, int px1) {
146    
147        FIN;
148    
149        cairo_move_to (cr, x0, y0 + BALLOON_CORNER_RADIUS);
150        cairo_arc (cr, x0 + BALLOON_CORNER_RADIUS, y0 + BALLOON_CORNER_RADIUS,
151                   BALLOON_CORNER_RADIUS, -M_PI, -M_PI/2);
152        if(!bottom) {
153            /* insert top pointer */
154            cairo_line_to (cr, px1, y0);
155            cairo_line_to (cr, px, py);
156            cairo_line_to (cr, px0, y0);
157        }
158    
159        cairo_line_to (cr, x1 - BALLOON_CORNER_RADIUS, y0);
160        cairo_arc (cr, x1 - BALLOON_CORNER_RADIUS, y0 + BALLOON_CORNER_RADIUS,
161                   BALLOON_CORNER_RADIUS, -M_PI/2, 0);
162        cairo_line_to (cr, x1 , y1 - BALLOON_CORNER_RADIUS);
163        cairo_arc (cr, x1 - BALLOON_CORNER_RADIUS, y1 - BALLOON_CORNER_RADIUS,
164                   BALLOON_CORNER_RADIUS, 0, M_PI/2);
165        if(bottom) {
166            /* insert bottom pointer */
167            cairo_line_to (cr, px0, y1);
168            cairo_line_to (cr, px, py);
169            cairo_line_to (cr, px1, y1);
170        }
171    
172        cairo_line_to (cr, x0 + BALLOON_CORNER_RADIUS, y1);
173        cairo_arc (cr, x0 + BALLOON_CORNER_RADIUS, y1 - BALLOON_CORNER_RADIUS,
174                   BALLOON_CORNER_RADIUS, M_PI/2, M_PI);
175    
176        cairo_close_path (cr);
177    
178        FOUT;
179    }
180    
181    static void
182    osd_render_balloon(osm_gps_map_osd_t *osd) {
183        FIN;
184    
185        osd_priv_t *priv = (osd_priv_t*)osd->priv;
186    
187        /* get zoom */
188        gint zoom;
189        g_object_get(OSM_GPS_MAP(osd->widget), "zoom", &zoom, NULL);
190    
191        /* ------- convert given coordinate into screen position --------- */
192        gint xs, ys;
193        osm_gps_map_geographic_to_screen (OSM_GPS_MAP(osd->widget),
194                                          priv->balloon.lat, priv->balloon.lon,
195                                          &xs, &ys);
196    
197        gint x0 = 1, y0 = 1;
198    
199        /* check position of this relative to screen center to determine */
200        /* pointer direction ... */
201        int pointer_x, pointer_x0, pointer_x1;
202        int pointer_y;
203    
204        /* ... and calculate position */
205        int orientation = 0;
206        if(xs > osd->widget->allocation.width/2) {
207            priv->balloon.offset_x = -BALLOON_WIDTH + POINTER_OFFSET;
208            pointer_x = x0 - priv->balloon.offset_x;
209            pointer_x0 = pointer_x - (BALLOON_CORNER_RADIUS - POINTER_OFFSET);
210            pointer_x1 = pointer_x0 - POINTER_FOOT_WIDTH;
211            orientation |= 1;
212        } else {
213            priv->balloon.offset_x = -POINTER_OFFSET;
214            pointer_x = x0 - priv->balloon.offset_x;
215            pointer_x1 = pointer_x + (BALLOON_CORNER_RADIUS - POINTER_OFFSET);
216            pointer_x0 = pointer_x1 + POINTER_FOOT_WIDTH;
217        }
218    
219        gboolean bottom = FALSE;
220        if(ys > osd->widget->allocation.height/2) {
221            priv->balloon.offset_y = -BALLOON_HEIGHT - POINTER_HEIGHT;
222            pointer_y = y0 - priv->balloon.offset_y;
223            bottom = TRUE;
224            orientation |= 2;
225        } else {
226            priv->balloon.offset_y = 0;
227            pointer_y = y0 - priv->balloon.offset_y;
228            y0 += POINTER_HEIGHT;
229        }
230    
231        /* if required orientation equals current one, then don't render */
232        /* anything */
233        if(orientation == priv->balloon.orientation)
234            return;
235    
236        priv->balloon.orientation = orientation;
237    
238        /* calculate bottom/right of box */
239        int x1 = x0 + BALLOON_WIDTH, y1 = y0 + BALLOON_HEIGHT;
240    
241        /* save balloon screen coordinates for later use */
242        priv->balloon.rect.x = x0 + BALLOON_BORDER;
243        priv->balloon.rect.y = y0 + BALLOON_BORDER;
244        priv->balloon.rect.w = x1 - x0 - 2*BALLOON_BORDER;
245        priv->balloon.rect.h = y1 - y0 - 2*BALLOON_BORDER;
246    
247        cairo_t *cr = cairo_create(priv->balloon.surface);
248        cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
249        cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.0);
250        cairo_paint(cr);
251        cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
252    
253        /* --------- draw shadow --------------- */
254        osm_gps_map_draw_balloon_shape (cr,
255                     x0 + BALLOON_SHADOW, y0 + BALLOON_SHADOW,
256                     x1 + BALLOON_SHADOW, y1 + BALLOON_SHADOW,
257                     bottom, pointer_x, pointer_y,
258                     pointer_x0 + BALLOON_SHADOW, pointer_x1 + BALLOON_SHADOW);
259    
260        cairo_set_source_rgba (cr, 0, 0, 0, BALLOON_SHADOW_TRANSPARENCY);
261        cairo_fill_preserve (cr);
262        cairo_set_source_rgba (cr, 1, 0, 0, 1.0);
263        cairo_set_line_width (cr, 0);
264        cairo_stroke (cr);
265    
266        /* --------- draw main shape ----------- */
267        osm_gps_map_draw_balloon_shape (cr, x0, y0, x1, y1,
268                     bottom, pointer_x, pointer_y, pointer_x0, pointer_x1);
269    
270        cairo_set_source_rgba (cr, 1, 1, 1, BALLOON_TRANSPARENCY);
271        cairo_fill_preserve (cr);
272        cairo_set_source_rgba (cr, 0, 0, 0, BALLOON_TRANSPARENCY);
273        cairo_set_line_width (cr, 1);
274        cairo_stroke (cr);
275    
276        if (priv->balloon.cb) {
277            osm_gps_map_balloon_event_t event;
278    
279            /* clip in case application tries to draw in */
280                /* exceed of the balloon */
281            cairo_rectangle (cr, priv->balloon.rect.x, priv->balloon.rect.y,
282                             priv->balloon.rect.w, priv->balloon.rect.h);
283            cairo_clip (cr);
284            cairo_new_path (cr);  /* current path is not consumed by cairo_clip */
285    
286            /* request the application to draw the balloon contents */
287            event.type = OSM_GPS_MAP_BALLOON_EVENT_TYPE_DRAW;
288            event.data.draw.rect = &priv->balloon.rect;
289            event.data.draw.cr = cr;
290    
291            priv->balloon.cb(&event, priv->balloon.data);
292        }
293    
294        cairo_destroy(cr);
295    
296        FOUT;
297    }
298    
299    /* return true if balloon is being displayed and if */
300    /* the given coordinate is within this balloon */
301    static gboolean
302    osd_balloon_check(osm_gps_map_osd_t *osd, gboolean click, gboolean down, gint x, gint y)
303    {
304        FIN;
305    
306        osd_priv_t *priv = (osd_priv_t*)osd->priv;
307    
308        if(!priv->balloon.surface)
309            return FALSE;
310    
311        gint xs, ys;
312        osm_gps_map_geographic_to_screen (OSM_GPS_MAP(osd->widget),
313                                          priv->balloon.lat, priv->balloon.lon,
314                                          &xs, &ys);
315    
316        xs += priv->balloon.rect.x + priv->balloon.offset_x;
317        ys += priv->balloon.rect.y + priv->balloon.offset_y;
318    
319        gboolean is_in =
320            (x > xs) && (x < xs + priv->balloon.rect.w) &&
321            (y > ys) && (y < ys + priv->balloon.rect.h);
322    
323        /* is this a real click or is the application just checking for something? */
324        if(click) {
325    
326            /* handle the fact that the balloon may have been created by the */
327            /* button down event */
328            if(!is_in && !down && !priv->balloon.just_created) {
329                /* the user actually clicked outside the balloon */
330    
331                /* close the balloon! */
332                osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(osd->widget));
333    
334                /* and inform application about this */
335                if(priv->balloon.cb) {
336                    osm_gps_map_balloon_event_t event;
337                    event.type = OSM_GPS_MAP_BALLOON_EVENT_TYPE_REMOVED;
338                    priv->balloon.cb(&event, priv->balloon.data);
339                }
340    
341            }
342    
343            if(is_in && priv->balloon.cb) {
344                osm_gps_map_balloon_event_t event;
345    
346                /* notify application of click */
347                event.type = OSM_GPS_MAP_BALLOON_EVENT_TYPE_CLICK;
348                event.data.click.x = x - xs;
349                event.data.click.y = y - ys;
350                event.data.click.down = down;
351    
352                priv->balloon.cb(&event, priv->balloon.data);
353            }
354        }
355        FOUT;
356        return is_in;
357    }
358    
359    void osm_gps_map_osd_clear_balloon (OsmGpsMap *map) {
360        FIN;
361    
362        g_return_if_fail (OSM_IS_GPS_MAP (map));
363    
364        osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map);
365        g_return_if_fail (osd);
366    
367        osd_priv_t *priv = (osd_priv_t*)osd->priv;
368        g_return_if_fail (priv);
369    
370        if(priv->balloon.surface) {
371            cairo_surface_destroy(priv->balloon.surface);
372            priv->balloon.surface = NULL;
373            priv->balloon.lat = OSM_GPS_MAP_INVALID;
374            priv->balloon.lon = OSM_GPS_MAP_INVALID;
375        }
376        osm_gps_map_redraw(map);
377        FOUT;
378    }
379    
380    void
381    osm_gps_map_osd_draw_balloon (OsmGpsMap *map, float latitude, float longitude,
382                                  OsmGpsMapBalloonCallback cb, gpointer data) {
383        FIN;
384        g_return_if_fail (OSM_IS_GPS_MAP (map));
385    
386        osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map);
387        g_return_if_fail (osd);
388    
389        osd_priv_t *priv = (osd_priv_t*)osd->priv;
390        g_return_if_fail (priv);
391    
392        osm_gps_map_osd_clear_balloon (map);
393    
394        /* allocate balloon surface */
395        priv->balloon.surface =
396            cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
397                                       BALLOON_W+2, BALLOON_H+2);
398    
399        priv->balloon.lat = latitude;
400        priv->balloon.lon = longitude;
401        priv->balloon.cb = cb;
402        priv->balloon.data = data;
403        priv->balloon.just_created = TRUE;
404    
405        priv->balloon.orientation = -1;
406    
407        osd_render_balloon(osd);
408    
409        osm_gps_map_redraw(map);
410        FOUT;
411    }
412    
413    #endif // OSD_BALLOON
414    
415  /* position and extent of bounding box */  /* position and extent of bounding box */
416  #ifndef OSD_X  #ifndef OSD_X
417  #define OSD_X      (10)  #define OSD_X      (10)
# Line 219  osd_shape(cairo_t *cr) { Line 552  osd_shape(cairo_t *cr) {
552  static gboolean  static gboolean
553  osm_gps_map_in_circle(gint x, gint y, gint cx, gint cy, gint rad)  osm_gps_map_in_circle(gint x, gint y, gint cx, gint cy, gint rad)
554  {  {
555        FIN;
556      return( pow(cx - x, 2) + pow(cy - y, 2) < rad * rad);      return( pow(cx - x, 2) + pow(cy - y, 2) < rad * rad);
557  }  }
558    
# Line 416  osd_source_content(osm_gps_map_osd_t *os Line 750  osd_source_content(osm_gps_map_osd_t *os
750  }  }
751    
752  static void  static void
753  osd_render_source_sel(osm_gps_map_osd_t *osd) {  osd_render_source_sel(osm_gps_map_osd_t *osd, gboolean force_rerender) {
754        FIN;
755    
756      osd_priv_t *priv = (osd_priv_t*)osd->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
757    
758        if(priv->source_sel.rendered && !force_rerender)
759            return;
760    
761        priv->source_sel.rendered = TRUE;
762    
763  #ifndef OSD_COLOR  #ifndef OSD_COLOR
764      GdkColor bg = GTK_WIDGET(osd->widget)->style->bg[GTK_STATE_NORMAL];      GdkColor bg = GTK_WIDGET(osd->widget)->style->bg[GTK_STATE_NORMAL];
765      GdkColor fg = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_NORMAL];      GdkColor fg = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_NORMAL];
# Line 458  osd_render_source_sel(osm_gps_map_osd_t Line 799  osd_render_source_sel(osm_gps_map_osd_t
799      cairo_stroke (cr);      cairo_stroke (cr);
800    
801      cairo_destroy(cr);      cairo_destroy(cr);
802        FOUT;
803  }  }
804    
805  /* re-allocate the buffer used to draw the menu. This is used */  /* re-allocate the buffer used to draw the menu. This is used */
806  /* to collapse/expand the buffer */  /* to collapse/expand the buffer */
807  static void  static void
808  osd_source_reallocate(osm_gps_map_osd_t *osd) {  osd_source_reallocate(osm_gps_map_osd_t *osd) {
809        FIN;
810      osd_priv_t *priv = (osd_priv_t*)osd->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
811    
812      /* re-allocate offscreen bitmap */      /* re-allocate offscreen bitmap */
# Line 503  osd_source_reallocate(osm_gps_map_osd_t Line 846  osd_source_reallocate(osm_gps_map_osd_t
846      priv->source_sel.surface =      priv->source_sel.surface =
847          cairo_image_surface_create(CAIRO_FORMAT_ARGB32, w+2, h+2);          cairo_image_surface_create(CAIRO_FORMAT_ARGB32, w+2, h+2);
848    
849      osd_render_source_sel(osd);      osd_render_source_sel(osd, TRUE);
850        FOUT;
851  }  }
852    
853  #define OSD_HZ      15  #define OSD_HZ      15
854  #define OSD_TIME    500  #define OSD_TIME    500
855    
856  static gboolean osd_source_animate(gpointer data) {  static gboolean osd_source_animate(gpointer data) {
857        FIN;
858      osm_gps_map_osd_t *osd = (osm_gps_map_osd_t*)data;      osm_gps_map_osd_t *osd = (osm_gps_map_osd_t*)data;
859      osd_priv_t *priv = (osd_priv_t*)osd->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
860      int diff = OSD_S_EXP_W - OSD_S_W - OSD_S_X;      int diff = OSD_S_EXP_W - OSD_S_W - OSD_S_X;
# Line 535  static gboolean osd_source_animate(gpoin Line 880  static gboolean osd_source_animate(gpoin
880    
881      /* 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 */
882    
883      /* nicer sinoid mapping */      /* nice sinoid mapping */
884      float m = 0.5-cos(priv->source_sel.count * M_PI / 1000.0)/2;      float m = 0.5-cos(priv->source_sel.count * M_PI / 1000.0)/2;
885      priv->source_sel.shift = (osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X) +      priv->source_sel.shift =
886            (osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X) +
887          m * diff;          m * diff;
888    
889        /* make sure the screen is updated */
890      osm_gps_map_repaint(OSM_GPS_MAP(osd->widget));      osm_gps_map_repaint(OSM_GPS_MAP(osd->widget));
891    
892        /* stop animation if done */
893      if(done)      if(done)
894          priv->source_sel.handler_id = 0;          priv->source_sel.handler_id = 0;
895    
896        FOUT;
897      return !done;      return !done;
898  }  }
899    
# Line 552  static gboolean osd_source_animate(gpoin Line 901  static gboolean osd_source_animate(gpoin
901  static void  static void
902  osd_source_toggle(osm_gps_map_osd_t *osd)  osd_source_toggle(osm_gps_map_osd_t *osd)
903  {  {
904        FIN;
905      osd_priv_t *priv = (osd_priv_t*)osd->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
906    
907      /* ignore clicks while animation is running */      /* ignore clicks while animation is running */
908      if(priv->source_sel.handler_id)      if(priv->source_sel.handler_id)
909          return;          return;
910    
911      /* expand immediately, collapse is handle at the end of the collapse animation */      /* expand immediately, collapse is handle at the end of the */
912        /* collapse animation */
913      if(!priv->source_sel.expanded) {      if(!priv->source_sel.expanded) {
914          priv->source_sel.expanded = TRUE;          priv->source_sel.expanded = TRUE;
915          osd_source_reallocate(osd);          osd_source_reallocate(osd);
# Line 568  osd_source_toggle(osm_gps_map_osd_t *osd Line 919  osd_source_toggle(osm_gps_map_osd_t *osd
919          priv->source_sel.dir = -1000/OSD_HZ;          priv->source_sel.dir = -1000/OSD_HZ;
920      } else {      } else {
921          priv->source_sel.count =  0;          priv->source_sel.count =  0;
922          priv->source_sel.shift = osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X;          priv->source_sel.shift = osd->widget->allocation.width -
923                OSD_S_EXP_W + OSD_S_X;
924          priv->source_sel.dir = +1000/OSD_HZ;          priv->source_sel.dir = +1000/OSD_HZ;
925      }      }
926    
927      priv->source_sel.handler_id = gtk_timeout_add(OSD_TIME/OSD_HZ, osd_source_animate, osd);      /* start timer to handle animation */
928        priv->source_sel.handler_id = gtk_timeout_add(OSD_TIME/OSD_HZ,
929                                                      osd_source_animate, osd);
930        FOUT;
931  }  }
932    
933  /* check if the user clicked inside the source selection area */  /* check if the user clicked inside the source selection area */
934  static osd_button_t  static osd_button_t
935  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) {
936        FIN;
937      osd_priv_t *priv = (osd_priv_t*)osd->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
938    
939      if(!priv->source_sel.expanded)      if(!priv->source_sel.expanded)
# Line 595  osd_source_check(osm_gps_map_osd_t *osd, Line 951  osd_source_check(osm_gps_map_osd_t *osd,
951          /* really within puller shape? */          /* really within puller shape? */
952          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)) {
953              /* expand source selector */              /* expand source selector */
954              osd_source_toggle(osd);              if(down)
955                    osd_source_toggle(osd);
956    
957              /* tell upper layers that user clicked some background element */              /* tell upper layers that user clicked some background element */
958              /* of the OSD */              /* of the OSD */
# Line 621  osd_source_check(osm_gps_map_osd_t *osd, Line 978  osd_source_check(osm_gps_map_osd_t *osd,
978              y /= step;              y /= step;
979              y += 1;              y += 1;
980    
981              gint old = 0;              if(down) {
982              g_object_get(osd->widget, "map-source", &old, NULL);                  gint old = 0;
983                    g_object_get(osd->widget, "map-source", &old, NULL);
984              if(y > OSM_GPS_MAP_SOURCE_NULL &&  
985                 y <= OSM_GPS_MAP_SOURCE_LAST &&                  if(y > OSM_GPS_MAP_SOURCE_NULL &&
986                 old != y) {                     y <= OSM_GPS_MAP_SOURCE_LAST &&
987                  g_object_set(osd->widget, "map-source", y, NULL);                     old != y) {
988                        g_object_set(osd->widget, "map-source", y, NULL);
989                  osd_render_source_sel(osd);  
990                  osm_gps_map_repaint(OSM_GPS_MAP(osd->widget));                      osd_render_source_sel(osd, TRUE);
991                        osm_gps_map_repaint(OSM_GPS_MAP(osd->widget));
992                    }
993              }              }
994    
995              /* return "clicked in OSD background" to prevent further */              /* return "clicked in OSD background" to prevent further */
996              /* processing by application */              /* processing by application */
997              return OSD_BG;              return OSD_BG;
998          }          }
999      }      }
1000    
1001        FOUT;
1002      return OSD_NONE;      return OSD_NONE;
1003  }  }
1004  #endif // OSD_SOURCE_SEL  #endif // OSD_SOURCE_SEL
1005    
1006  static osd_button_t  static osd_button_t
1007  osd_check(osm_gps_map_osd_t *osd, gint x, gint y) {  osd_check_int(osm_gps_map_osd_t *osd, gboolean click, gboolean down, gint x, gint y) {
1008        FIN;
1009      osd_button_t but = OSD_NONE;      osd_button_t but = OSD_NONE;
1010    
1011    #ifdef OSD_BALLOON
1012        if(down) {
1013            /* needed to handle balloons that are created at click */
1014            osd_priv_t *priv = (osd_priv_t*)osd->priv;
1015            priv->balloon.just_created = FALSE;
1016        }
1017    #endif
1018    
1019  #ifdef OSD_SOURCE_SEL  #ifdef OSD_SOURCE_SEL
1020      /* the source selection area is handles internally */      /* the source selection area is handles internally */
1021      but = osd_source_check(osd, x, y);      but = osd_source_check(osd, down, x, y);
     if(but != OSD_NONE)  
         return but;  
1022  #endif  #endif
1023    
1024      x -= OSD_X;      if(but == OSD_NONE) {
1025      y -= OSD_Y;          gint mx = x - OSD_X;
1026            gint my = y - OSD_Y;
1027      if(OSD_X < 0)  
1028          x -= (osd->widget->allocation.width - OSD_W);          if(OSD_X < 0)
1029                mx -= (osd->widget->allocation.width - OSD_W);
1030      if(OSD_Y < 0)  
1031          y -= (osd->widget->allocation.height - OSD_H);          if(OSD_Y < 0)
1032                my -= (osd->widget->allocation.height - OSD_H);
1033      /* first do a rough test for the OSD area. */  
1034      /* this is just to avoid an unnecessary detailed test */          /* first do a rough test for the OSD area. */
1035      if(x > 0 && x < OSD_W && y > 0 && y < OSD_H) {          /* this is just to avoid an unnecessary detailed test */
1036            if(mx > 0 && mx < OSD_W && my > 0 && my < OSD_H) {
1037  #ifndef OSD_NO_DPAD  #ifndef OSD_NO_DPAD
1038          but = osd_check_dpad(x, y);              but = osd_check_dpad(mx, my);
1039  #endif  #endif
1040            }
1041    
1042          if(but == OSD_NONE)          if(but == OSD_NONE)
1043              but = osd_check_zoom(x, y);              but = osd_check_zoom(mx, my);
1044      }      }
1045    
1046    #ifdef OSD_BALLOON
1047        if(but == OSD_NONE) {
1048            /* check if user clicked into balloon */
1049            if(osd_balloon_check(osd, click, down, x, y))
1050                but = OSD_BG;
1051        }
1052    #endif
1053    
1054        FOUT;
1055      return but;      return but;
1056  }  }
1057    
# Line 756  osd_zoom_labels(cairo_t *cr, gint x, gin Line 1134  osd_zoom_labels(cairo_t *cr, gint x, gin
1134  #define OSD_COORDINATES_OFFSET (OSD_COORDINATES_FONT_SIZE/6)  #define OSD_COORDINATES_OFFSET (OSD_COORDINATES_FONT_SIZE/6)
1135    
1136  #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)
1137  #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)
1138    
1139  /* these can be overwritten with versions that support */  /* these can be overwritten with versions that support */
1140  /* localization */  /* localization */
# Line 814  static char Line 1192  static char
1192                             c, (int)integral, fractional*60.0);                             c, (int)integral, fractional*60.0);
1193  }  }
1194    
1195    /* render a string at the given screen position */
1196    static int
1197    osd_render_centered_text(cairo_t *cr, int y, int width, char *text) {
1198        FIN;
1199    
1200        printf("params: %p %d %d %p\n", cr, y, width, text); // XXX
1201    
1202        if(!text) return y;
1203    
1204        printf("text given: %s\n", text); // XXX
1205    
1206        char *p = g_malloc(strlen(text)+4);  // space for "...\n"
1207        strcpy(p, text);
1208    
1209        cairo_text_extents_t extents;
1210        printf("getting extents for \"%s\"\n", p);  // XXX
1211        cairo_text_extents (cr, p, &extents);
1212        printf("initial extents.width = %d\n", extents.width);  // XXX
1213    
1214        /* check if text needs to be truncated */
1215        int trunc_at = strlen(text)-1;
1216        while(extents.width > width) {
1217            g_assert(trunc_at > 0);
1218    
1219            printf("trunc at %d\n", trunc_at);  // XXX
1220            printf("extents.width = %d > %d\n", extents.width, width);  // XXX
1221    
1222            trunc_at--;
1223            strcpy(p+trunc_at, "...");
1224            printf("getting extents for \"%s\"\n", p);  // XXX
1225            cairo_text_extents (cr, p, &extents);
1226        }
1227    
1228        printf("painting\n"); // XXX
1229    
1230        cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
1231        cairo_set_line_width (cr, OSD_COORDINATES_FONT_SIZE/6);
1232        cairo_move_to (cr, (width - extents.width)/2, y - extents.y_bearing);
1233        cairo_text_path (cr, p);
1234        cairo_stroke (cr);
1235    
1236        cairo_set_source_rgb(cr, 0.0, 0.0, 0.0);
1237        cairo_move_to (cr, (width - extents.width)/2, y - extents.y_bearing);
1238        cairo_show_text (cr, p);
1239    
1240        g_free(p);
1241    
1242        /* skip + 1/5 line */
1243        FOUT;
1244        return y + 6*OSD_COORDINATES_FONT_SIZE/5;
1245    }
1246    
1247  static void  static void
1248  osd_render_coordinates(osm_gps_map_osd_t *osd)  osd_render_coordinates(osm_gps_map_osd_t *osd)
1249  {  {
1250        FIN;
1251      osd_priv_t *priv = (osd_priv_t*)osd->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
1252    
1253      /* get current map position */      /* get current map position */
# Line 833  osd_render_coordinates(osm_gps_map_osd_t Line 1264  osd_render_coordinates(osm_gps_map_osd_t
1264      priv->coordinates.lat = lat;      priv->coordinates.lat = lat;
1265      priv->coordinates.lon = lon;      priv->coordinates.lon = lon;
1266    
1267      /* first fill with light transparency */      /* first fill with transparency */
1268      cairo_t *cr = cairo_create(priv->coordinates.surface);      cairo_t *cr = cairo_create(priv->coordinates.surface);
1269      cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);      cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
1270      cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 0.5);      //    cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 0.5);
1271        cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.0);
1272      cairo_paint(cr);      cairo_paint(cr);
1273      cairo_set_operator(cr, CAIRO_OPERATOR_OVER);      cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
1274    
# Line 848  osd_render_coordinates(osm_gps_map_osd_t Line 1280  osd_render_coordinates(osm_gps_map_osd_t
1280      char *latitude = osd_latitude_str(lat);      char *latitude = osd_latitude_str(lat);
1281      char *longitude = osd_longitude_str(lon);      char *longitude = osd_longitude_str(lon);
1282    
1283      cairo_text_extents_t lat_extents, lon_extents;      int y = OSD_COORDINATES_OFFSET;
1284      cairo_text_extents (cr, latitude, &lat_extents);      y = osd_render_centered_text(cr, y, OSD_COORDINATES_W, latitude);
1285      cairo_text_extents (cr, longitude, &lon_extents);      y = osd_render_centered_text(cr, y, OSD_COORDINATES_W, longitude);
1286    
1287        g_free(latitude);
1288        g_free(longitude);
1289    
1290      cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);      cairo_destroy(cr);
1291      cairo_set_line_width (cr, OSD_COORDINATES_FONT_SIZE/6);      FOUT;
1292      cairo_move_to (cr,  }
1293                     (OSD_COORDINATES_W - lat_extents.width)/2,  #endif  // OSD_COORDINATES
                    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);  
1294    
1295      cairo_set_source_rgb(cr, 0.0, 0.0, 0.0);  #ifdef OSD_NAV
1296      cairo_move_to (cr,  #define OSD_NAV_W  (8*OSD_COORDINATES_FONT_SIZE+2*OSD_COORDINATES_OFFSET)
1297                     (OSD_COORDINATES_W - lat_extents.width)/2,  #define OSD_NAV_H  (11*OSD_COORDINATES_FONT_SIZE)
1298                     OSD_COORDINATES_OFFSET - lat_extents.y_bearing);  
1299      cairo_show_text (cr, latitude);  /* http://mathforum.org/library/drmath/view/55417.html */
1300      cairo_move_to (cr,  static float get_bearing(float lat1, float lon1, float lat2, float lon2) {
1301                     (OSD_COORDINATES_W - lon_extents.width)/2,    return atan2( sin(lon2 - lon1) * cos(lat2),
1302                     OSD_COORDINATES_OFFSET - lon_extents.y_bearing +                  cos(lat1) * sin(lat2) -
1303                     OSD_COORDINATES_FONT_SIZE);                  sin(lat1) * cos(lat2) * cos(lon2 - lon1));
1304      cairo_show_text (cr, longitude);  }
1305    
1306    /* http://mathforum.org/library/drmath/view/51722.html */
1307    static float get_distance(float lat1, float lon1, float lat2, float lon2) {
1308      float aob = acos(cos(lat1) * cos(lat2) * cos(lon2 - lon1) +
1309                       sin(lat1) * sin(lat2));
1310    
1311      //  return(aob * 3959.0);   /* great circle radius in miles */
1312    
1313      return(aob * 6371000.0);     /* great circle radius in meters */
1314    }
1315    
1316    static void
1317    osd_render_nav(osm_gps_map_osd_t *osd)
1318    {
1319        FIN;
1320        osd_priv_t *priv = (osd_priv_t*)osd->priv;
1321    
1322        if(!priv->nav.surface || isnan(priv->nav.lat) || isnan(priv->nav.lon))
1323            return;
1324    
1325        /* first fill with transparency */
1326        cairo_t *cr = cairo_create(priv->nav.surface);
1327        cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
1328        cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0);
1329        cairo_paint(cr);
1330        cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
1331    
1332        cairo_select_font_face (cr, "Sans",
1333                                CAIRO_FONT_SLANT_NORMAL,
1334                                CAIRO_FONT_WEIGHT_BOLD);
1335        cairo_set_font_size (cr, OSD_COORDINATES_FONT_SIZE);
1336    
1337        char *latitude = osd_latitude_str(priv->nav.lat);
1338        char *longitude = osd_longitude_str(priv->nav.lon);
1339    
1340        int y = OSD_COORDINATES_OFFSET;
1341        y = osd_render_centered_text(cr, y, OSD_NAV_W, priv->nav.name);
1342        y = osd_render_centered_text(cr, y, OSD_NAV_W, latitude);
1343        y = osd_render_centered_text(cr, y, OSD_NAV_W, longitude);
1344    
1345      g_free(latitude);      g_free(latitude);
1346      g_free(longitude);      g_free(longitude);
1347    
1348        /* draw the compass */
1349        int radius = (OSD_NAV_H - y - 5*OSD_COORDINATES_FONT_SIZE/4)/2;
1350        if(radius > OSD_NAV_W/2)
1351            radius = OSD_NAV_W/2;
1352    
1353        int x = OSD_NAV_W/2+1;
1354        y += radius;
1355    
1356        cairo_stroke (cr);
1357    
1358        /* draw background */
1359        cairo_arc(cr, x, y, radius, 0,  2*M_PI);
1360        cairo_set_source_rgba (cr, 1, 1, 1, 0.5);
1361        cairo_fill_preserve (cr);
1362        cairo_set_source_rgb (cr, 0, 0, 0);
1363        cairo_set_line_width (cr, 1);
1364        cairo_stroke (cr);
1365    
1366        /* draw pointer */
1367    #define ARROW_WIDTH     0.3
1368    #define ARROW_LENGTH    0.7
1369    
1370        coord_t *gps = osm_gps_map_get_gps (OSM_GPS_MAP(osd->widget));
1371        if(gps) {
1372            float arot = get_bearing(gps->rlat, gps->rlon,
1373                         deg2rad(priv->nav.lat), deg2rad(priv->nav.lon));
1374    
1375            cairo_move_to(cr,
1376                          x + radius *  ARROW_LENGTH *  sin(arot),
1377                          y + radius *  ARROW_LENGTH * -cos(arot));
1378    
1379            cairo_line_to(cr,
1380                          x + radius * -ARROW_LENGTH *  sin(arot+ARROW_WIDTH),
1381                          y + radius * -ARROW_LENGTH * -cos(arot+ARROW_WIDTH));
1382    
1383            cairo_line_to(cr,
1384                          x + radius * -0.5 * ARROW_LENGTH *  sin(arot),
1385                          y + radius * -0.5 * ARROW_LENGTH * -cos(arot));
1386    
1387            cairo_line_to(cr,
1388                          x + radius * -ARROW_LENGTH *  sin(arot-ARROW_WIDTH),
1389                          y + radius * -ARROW_LENGTH * -cos(arot-ARROW_WIDTH));
1390    
1391            cairo_close_path(cr);
1392            cairo_set_source_rgb (cr, 0, 0, 0);
1393            cairo_fill (cr);
1394    
1395            y += radius + OSD_COORDINATES_FONT_SIZE/4;
1396    
1397            float dist = get_distance(gps->rlat, gps->rlon,
1398                            deg2rad(priv->nav.lat), deg2rad(priv->nav.lon));
1399    
1400            char *dist_str = NULL;
1401            if(!priv->nav.imperial) {
1402                /* metric is easy ... */
1403                if(dist<1000)
1404                    dist_str = g_strdup_printf("%u m", (int)dist);
1405                else
1406                    dist_str = g_strdup_printf("%.1f km", dist/1000);
1407            } else {
1408                /* and now the hard part: scale for useful imperial values :-( */
1409                /* try to convert to feet, 1ft == 0.3048 m */
1410    
1411                if(dist/(3*0.3048) >= 1760.0)      /* more than 1760 yard? */
1412                    dist_str = g_strdup_printf("%.1f mi", dist/(0.3048*3*1760.0));
1413                else if(dist/0.3048 >= 100)        /* more than 100 feet? */
1414                    dist_str = g_strdup_printf("%.1f yd", dist/(0.3048*3));
1415                else
1416                    dist_str = g_strdup_printf("%.0f ft", dist/0.3048);
1417            }
1418    
1419            y = osd_render_centered_text(cr, y, OSD_NAV_W, dist_str);
1420            g_free(dist_str);
1421        }
1422    
1423      cairo_destroy(cr);      cairo_destroy(cr);
1424        FOUT;
1425  }  }
1426  #endif  // OSD_COORDINATES  
1427    void osm_gps_map_osd_clear_nav (OsmGpsMap *map) {
1428        FIN;
1429        g_return_if_fail (OSM_IS_GPS_MAP (map));
1430    
1431        osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map);
1432        g_return_if_fail (osd);
1433    
1434        osd_priv_t *priv = (osd_priv_t*)osd->priv;
1435        g_return_if_fail (priv);
1436    
1437        if(priv->nav.surface) {
1438            cairo_surface_destroy(priv->nav.surface);
1439            priv->nav.surface = NULL;
1440            priv->nav.lat = OSM_GPS_MAP_INVALID;
1441            priv->nav.lon = OSM_GPS_MAP_INVALID;
1442            if(priv->nav.name) g_free(priv->nav.name);
1443        }
1444        osm_gps_map_redraw(map);
1445        FOUT;
1446    }
1447    
1448    void
1449    osm_gps_map_osd_draw_nav (OsmGpsMap *map, gboolean imperial,
1450                              float latitude, float longitude, char *name) {
1451        FIN;
1452        g_return_if_fail (OSM_IS_GPS_MAP (map));
1453    
1454        osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map);
1455        g_return_if_fail (osd);
1456    
1457        osd_priv_t *priv = (osd_priv_t*)osd->priv;
1458        g_return_if_fail (priv);
1459    
1460        osm_gps_map_osd_clear_nav (map);
1461    
1462        /* allocate balloon surface */
1463        priv->nav.surface =
1464            cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
1465                                       OSD_NAV_W+2, OSD_NAV_H+2);
1466    
1467        priv->nav.lat = latitude;
1468        priv->nav.lon = longitude;
1469        priv->nav.name = g_strdup(name);
1470        priv->nav.imperial = imperial;
1471    
1472        osd_render_nav(osd);
1473    
1474        osm_gps_map_redraw(map);
1475        FOUT;
1476    }
1477    
1478    #endif // OSD_NAV
1479    
1480    
1481  #ifdef OSD_CROSSHAIR  #ifdef OSD_CROSSHAIR
1482    
# Line 896  osd_render_coordinates(osm_gps_map_osd_t Line 1491  osd_render_coordinates(osm_gps_map_osd_t
1491    
1492  static void  static void
1493  osd_render_crosshair_shape(cairo_t *cr) {  osd_render_crosshair_shape(cairo_t *cr) {
1494        FIN;
1495      cairo_arc (cr, OSD_CROSSHAIR_W/2, OSD_CROSSHAIR_H/2,      cairo_arc (cr, OSD_CROSSHAIR_W/2, OSD_CROSSHAIR_H/2,
1496                 OSD_CROSSHAIR_RADIUS, 0,  2*M_PI);                 OSD_CROSSHAIR_RADIUS, 0,  2*M_PI);
1497    
# Line 914  osd_render_crosshair_shape(cairo_t *cr) Line 1510  osd_render_crosshair_shape(cairo_t *cr)
1510      cairo_rel_line_to (cr, 0, OSD_CROSSHAIR_TICK);      cairo_rel_line_to (cr, 0, OSD_CROSSHAIR_TICK);
1511    
1512      cairo_stroke (cr);      cairo_stroke (cr);
1513        FOUT;
1514  }  }
1515    
1516  static void  static void
1517  osd_render_crosshair(osm_gps_map_osd_t *osd)  osd_render_crosshair(osm_gps_map_osd_t *osd)
1518  {  {
1519        FIN;
1520      osd_priv_t *priv = (osd_priv_t*)osd->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
1521    
1522      if(priv->crosshair.rendered)      if(priv->crosshair.rendered)
# Line 944  osd_render_crosshair(osm_gps_map_osd_t * Line 1542  osd_render_crosshair(osm_gps_map_osd_t *
1542      osd_render_crosshair_shape(cr);      osd_render_crosshair_shape(cr);
1543    
1544      cairo_destroy(cr);      cairo_destroy(cr);
1545        FOUT;
1546  }  }
1547  #endif  #endif
1548    
# Line 965  osd_render_crosshair(osm_gps_map_osd_t * Line 1564  osd_render_crosshair(osm_gps_map_osd_t *
1564  static void  static void
1565  osd_render_scale(osm_gps_map_osd_t *osd)  osd_render_scale(osm_gps_map_osd_t *osd)
1566  {  {
1567        FIN;
1568      osd_priv_t *priv = (osd_priv_t*)osd->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
1569    
1570      /* this only needs to be rendered if the zoom has changed */      /* this only needs to be rendered if the zoom has changed */
# Line 1088  osd_render_scale(osm_gps_map_osd_t *osd) Line 1688  osd_render_scale(osm_gps_map_osd_t *osd)
1688      cairo_stroke(cr);      cairo_stroke(cr);
1689    
1690      cairo_destroy(cr);      cairo_destroy(cr);
1691        FOUT;
1692  }  }
1693  #endif  #endif
1694    
1695  static void  static void
1696  osd_render_controls(osm_gps_map_osd_t *osd)  osd_render_controls(osm_gps_map_osd_t *osd)
1697  {  {
1698        FIN;
1699      osd_priv_t *priv = (osd_priv_t*)osd->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
1700    
1701      if(priv->controls.rendered      if(priv->controls.rendered
# Line 1191  osd_render_controls(osm_gps_map_osd_t *o Line 1793  osd_render_controls(osm_gps_map_osd_t *o
1793  static void  static void
1794  osd_render(osm_gps_map_osd_t *osd)  osd_render(osm_gps_map_osd_t *osd)
1795  {  {
1796        /* this function is actually called pretty often since the */
1797        /* OSD contents may have changed (due to a coordinate/zoom change). */
1798        /* The different OSD parts have to make sure that they don't */
1799        /* render unneccessarily often and thus waste CPU power */
1800    
1801      osd_render_controls(osd);      osd_render_controls(osd);
1802    
1803  #ifdef OSD_SOURCE_SEL  #ifdef OSD_SOURCE_SEL
1804      osd_render_source_sel(osd);      osd_render_source_sel(osd, FALSE);
1805  #endif  #endif
1806    
1807  #ifdef OSD_SCALE  #ifdef OSD_SCALE
# Line 1205  osd_render(osm_gps_map_osd_t *osd) Line 1812  osd_render(osm_gps_map_osd_t *osd)
1812      osd_render_crosshair(osd);      osd_render_crosshair(osd);
1813  #endif  #endif
1814    
1815    #ifdef OSD_NAV
1816        osd_render_nav(osd);
1817    #endif
1818    
1819  #ifdef OSD_COORDINATES  #ifdef OSD_COORDINATES
1820      osd_render_coordinates(osd);      osd_render_coordinates(osd);
1821  #endif  #endif
# Line 1232  osd_draw(osm_gps_map_osd_t *osd, GdkDraw Line 1843  osd_draw(osm_gps_map_osd_t *osd, GdkDraw
1843          priv->source_sel.surface =          priv->source_sel.surface =
1844              cairo_image_surface_create(CAIRO_FORMAT_ARGB32,              cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
1845                                             OSD_S_W+2, OSD_S_H+2);                                             OSD_S_W+2, OSD_S_H+2);
1846            priv->source_sel.rendered = FALSE;
1847  #endif  #endif
1848    
1849  #ifdef OSD_SCALE  #ifdef OSD_SCALE
# Line 1263  osd_draw(osm_gps_map_osd_t *osd, GdkDraw Line 1875  osd_draw(osm_gps_map_osd_t *osd, GdkDraw
1875      // now draw this onto the original context      // now draw this onto the original context
1876      cairo_t *cr = gdk_cairo_create(drawable);      cairo_t *cr = gdk_cairo_create(drawable);
1877    
1878      int x, y;      gint x, y;
1879    
1880  #ifdef OSD_SCALE  #ifdef OSD_SCALE
1881      x =  OSD_X;      x =  OSD_X;
# Line 1283  osd_draw(osm_gps_map_osd_t *osd, GdkDraw Line 1895  osd_draw(osm_gps_map_osd_t *osd, GdkDraw
1895      cairo_paint(cr);      cairo_paint(cr);
1896  #endif  #endif
1897    
1898    #ifdef OSD_NAV
1899        if(priv->nav.surface) {
1900            x =  OSD_X;
1901            if(x < 0) x += osd->widget->allocation.width - OSD_NAV_W;
1902            y = (osd->widget->allocation.height - OSD_NAV_H)/2;
1903    
1904            cairo_set_source_surface(cr, priv->nav.surface, x, y);
1905            cairo_paint(cr);
1906        }
1907    #endif
1908    
1909  #ifdef OSD_COORDINATES  #ifdef OSD_COORDINATES
1910      x = -OSD_X;      x = -OSD_X;
1911      y = -OSD_Y;      y = -OSD_Y;
# Line 1293  osd_draw(osm_gps_map_osd_t *osd, GdkDraw Line 1916  osd_draw(osm_gps_map_osd_t *osd, GdkDraw
1916      cairo_paint(cr);      cairo_paint(cr);
1917  #endif  #endif
1918    
1919    #ifdef OSD_BALLOON
1920        if(priv->balloon.surface) {
1921    
1922            /* convert given lat lon into screen coordinates */
1923            gint x, y;
1924            osm_gps_map_geographic_to_screen (OSM_GPS_MAP(osd->widget),
1925                                          priv->balloon.lat, priv->balloon.lon,
1926                                          &x, &y);
1927    
1928            /* check if balloon needs to be rerendered */
1929            osd_render_balloon(osd);
1930    
1931            cairo_set_source_surface(cr, priv->balloon.surface,
1932                                     x + priv->balloon.offset_x,
1933                                     y + priv->balloon.offset_y);
1934            cairo_paint(cr);
1935        }
1936    #endif
1937    
1938      x = OSD_X;      x = OSD_X;
1939      if(x < 0)      if(x < 0)
1940          x += osd->widget->allocation.width - OSD_W;          x += osd->widget->allocation.width - OSD_W;
# Line 1327  osd_draw(osm_gps_map_osd_t *osd, GdkDraw Line 1969  osd_draw(osm_gps_map_osd_t *osd, GdkDraw
1969  #endif  #endif
1970    
1971      cairo_destroy(cr);      cairo_destroy(cr);
1972        FOUT;
1973  }  }
1974    
1975  static void  static void
1976  osd_free(osm_gps_map_osd_t *osd)  osd_free(osm_gps_map_osd_t *osd)
1977  {  {
1978        FIN;
1979      osd_priv_t *priv = (osd_priv_t *)(osd->priv);      osd_priv_t *priv = (osd_priv_t *)(osd->priv);
1980    
1981      if (priv->controls.surface)      if (priv->controls.surface)
# Line 1355  osd_free(osm_gps_map_osd_t *osd) Line 1999  osd_free(osm_gps_map_osd_t *osd)
1999           cairo_surface_destroy(priv->crosshair.surface);           cairo_surface_destroy(priv->crosshair.surface);
2000  #endif  #endif
2001    
2002    #ifdef OSD_NAV
2003        if (priv->nav.surface)
2004             cairo_surface_destroy(priv->nav.surface);
2005    #endif
2006    
2007  #ifdef OSD_COORDINATES  #ifdef OSD_COORDINATES
2008      if (priv->coordinates.surface)      if (priv->coordinates.surface)
2009           cairo_surface_destroy(priv->coordinates.surface);           cairo_surface_destroy(priv->coordinates.surface);
2010  #endif  #endif
2011    
2012    #ifdef OSD_BALLOON
2013        if (priv->balloon.surface)
2014             cairo_surface_destroy(priv->balloon.surface);
2015    #endif
2016    
2017      g_free(priv);      g_free(priv);
2018        FOUT;
2019  }  }
2020    
2021  static gboolean  static gboolean
2022  osd_busy(osm_gps_map_osd_t *osd)  osd_busy(osm_gps_map_osd_t *osd)
2023  {  {
2024        FIN;
2025  #ifdef OSD_SOURCE_SEL  #ifdef OSD_SOURCE_SEL
2026      osd_priv_t *priv = (osd_priv_t *)(osd->priv);      osd_priv_t *priv = (osd_priv_t *)(osd->priv);
2027      return (priv->source_sel.handler_id != 0);      return (priv->source_sel.handler_id != 0);
# Line 1374  osd_busy(osm_gps_map_osd_t *osd) Line 2030  osd_busy(osm_gps_map_osd_t *osd)
2030  #endif  #endif
2031  }  }
2032    
2033    static osd_button_t
2034    osd_check(osm_gps_map_osd_t *osd, gboolean down, gint x, gint y) {
2035        FIN;
2036        return osd_check_int(osd, TRUE, down, x, y);
2037    }
2038    
2039  static osm_gps_map_osd_t osd_classic = {  static osm_gps_map_osd_t osd_classic = {
2040      .widget     = NULL,      .widget     = NULL,
2041    
# Line 1393  static osm_gps_map_osd_t osd_classic = { Line 2055  static osm_gps_map_osd_t osd_classic = {
2055  void  void
2056  osm_gps_map_osd_classic_init(OsmGpsMap *map)  osm_gps_map_osd_classic_init(OsmGpsMap *map)
2057  {  {
2058        FIN;
2059      osd_priv_t *priv = osd_classic.priv = g_new0(osd_priv_t, 1);      osd_priv_t *priv = osd_classic.priv = g_new0(osd_priv_t, 1);
2060    
2061    #ifdef OSD_BALLOON
2062        priv->balloon.lat = OSM_GPS_MAP_INVALID;
2063        priv->balloon.lon = OSM_GPS_MAP_INVALID;
2064    #endif
2065    
2066      osd_classic.priv = priv;      osd_classic.priv = priv;
2067    
2068      osm_gps_map_register_osd(map, &osd_classic);      osm_gps_map_register_osd(map, &osd_classic);
2069        FOUT;
2070  }  }
2071    
2072  #ifdef OSD_GPS_BUTTON  #ifdef OSD_GPS_BUTTON
# Line 1405  osm_gps_map_osd_classic_init(OsmGpsMap * Line 2074  osm_gps_map_osd_classic_init(OsmGpsMap *
2074  /* but instead are to be used by the main application */  /* but instead are to be used by the main application */
2075  void osm_gps_map_osd_enable_gps (OsmGpsMap *map, OsmGpsMapOsdCallback cb,  void osm_gps_map_osd_enable_gps (OsmGpsMap *map, OsmGpsMapOsdCallback cb,
2076                                   gpointer data) {                                   gpointer data) {
2077        FIN;
2078      osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map);      osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map);
2079      g_return_if_fail (osd);      g_return_if_fail (osd);
2080    
# Line 1416  void osm_gps_map_osd_enable_gps (OsmGpsM Line 2086  void osm_gps_map_osd_enable_gps (OsmGpsM
2086      osd->render(osd);      osd->render(osd);
2087    
2088      osm_gps_map_redraw(map);      osm_gps_map_redraw(map);
2089        FOUT;
2090  }  }
2091  #endif  #endif
2092    
2093  osd_button_t  osd_button_t
2094  osm_gps_map_osd_check(OsmGpsMap *map, gint x, gint y) {  osm_gps_map_osd_check(OsmGpsMap *map, gint x, gint y) {
2095        FIN;
2096      osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map);      osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map);
2097      g_return_val_if_fail (osd, OSD_NONE);      g_return_val_if_fail (osd, OSD_NONE);
2098    
2099      return osd_check(osd, x, y);      return osd_check_int(osd, FALSE, TRUE, x, y);
2100  }  }
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Removed from v.110  
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  Added in v.144