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

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revision 70 by harbaum, Thu Aug 20 19:17:23 2009 UTC revision 106 by harbaum, Thu Sep 10 13:06:16 2009 UTC
# Line 1  Line 1 
1    /* -*- Mode: C; indent-tabs-mode: nil; c-basic-offset: 4; tab-width: 4 -*- */
2    /* vim:set et sw=4 ts=4 cino=t0,(0: */
3  /*  /*
4   * Copyright (C) Till Harbaum 2009 <till@harbaum.org>   * Copyright (C) Till Harbaum 2009 <till@harbaum.org>
5   *   *
# Line 15  Line 17 
17   * with this program.  If not, see <http://www.gnu.org/licenses/>.   * with this program.  If not, see <http://www.gnu.org/licenses/>.
18   */   */
19    
20  #include "config.h"  #include "config.h"
21    #include <stdlib.h>  // abs
22    #include <math.h>    // M_PI/cos()
23    
24    /* parameters that can be overwritten from the config file: */
25    /* OSD_DIAMETER */
26    /* OSD_X, OSD_Y */
27    
28  #ifdef USE_CAIRO  #ifndef USE_CAIRO
29  #include <cairo.h>  #error "OSD control display lacks a non-cairo implementation!"
30  #endif  #endif
31    
32    #include <cairo.h>
33    
34    #include "osm-gps-map.h"
35    #include "osm-gps-map-osd-classic.h"
36    
37    #define OSD_COORDINATES
38    
39  //the osd controls  //the osd controls
40  typedef struct {  typedef struct {
41      GdkPixmap *backup;      /* the offscreen representation of the OSD */
42      cairo_surface_t *overlay;      cairo_surface_t *overlay;
     gint backup_x, backup_y;  
     OsmGpsMapOsdGpsCallback cb;  
     gpointer data;  
 } osd_priv_t;  
43    
44  typedef struct {  #ifdef OSD_SCALE
45        cairo_surface_t *scale;
46        int scale_zoom;
47    #endif
48    
49    #ifdef OSD_CROSSHAIR
50        cairo_surface_t *crosshair;
51    #endif
52    
53    #ifdef OSD_COORDINATES
54        cairo_surface_t *coordinates;
55    #endif
56    
57    #ifdef OSD_SOURCE_SEL
58        /* values to handle the "source" menu */
59        cairo_surface_t *map_source;
60        gboolean expanded;
61        gint shift, dir, count;
62        gint handler_id;
63        gint width, height;
64    #endif
65    
66      gpointer priv;  } osd_priv_t;
 } osm_gps_map_osd_t;  
67    
68  /* position and extent of bounding box */  /* position and extent of bounding box */
69    #ifndef OSD_X
70  #define OSD_X      (10)  #define OSD_X      (10)
71  #define OSD_Y      (10)  #endif
72    
73  #define OSD_COLOR            0.5, 0.5, 1  #ifndef OSD_Y
74  #define OSD_COLOR_DISABLED   0.8, 0.8, 0.8  #define OSD_Y      (10)
75    #endif
76    
77  /* parameters of the direction shape */  /* parameters of the direction shape */
78  #ifndef OSM_GPS_MAP_OSD_DIAMETER  #ifndef OSD_DIAMETER
79  #define D_RAD  (30)         // diameter of dpad  #define D_RAD  (30)         // diameter of dpad
80  #else  #else
81  #define D_RAD  (OSM_GPS_MAP_OSD_DIAMETER)  #define D_RAD  (OSD_DIAMETER)
82  #endif  #endif
83  #define D_TIP  (4*D_RAD/5)  // distance of arrow tip from dpad center  #define D_TIP  (4*D_RAD/5)  // distance of arrow tip from dpad center
84  #define D_LEN  (D_RAD/4)    // length of arrow  #define D_LEN  (D_RAD/4)    // length of arrow
# Line 59  typedef struct { Line 88  typedef struct {
88  #define Z_STEP   (D_RAD/4)  // distance between dpad and zoom  #define Z_STEP   (D_RAD/4)  // distance between dpad and zoom
89  #define Z_RAD    (D_RAD/2)  // radius of "caps" of zoom bar  #define Z_RAD    (D_RAD/2)  // radius of "caps" of zoom bar
90    
91    #ifdef OSD_SHADOW_ENABLE
92  /* shadow also depends on control size */  /* shadow also depends on control size */
93  #define OSD_SHADOW (D_RAD/6)  #define OSD_SHADOW (D_RAD/6)
94    #else
95    #define OSD_SHADOW (0)
96    #endif
97    
98    /* normally the GPS button is in the center of the dpad. if there's */
99    /* no dpad it will go into the zoom area */
100    #if defined(OSD_GPS_BUTTON) && defined(OSD_NO_DPAD)
101    #define Z_GPS  1
102    #else
103    #define Z_GPS  0
104    #endif
105    
106  /* total width and height of controls incl. shadow */  /* total width and height of controls incl. shadow */
107  #define OSD_W    (2*D_RAD + OSD_SHADOW)  #define OSD_W    (2*D_RAD + OSD_SHADOW + Z_GPS * 2 * Z_RAD)
108    #if !Z_GPS
109  #define OSD_H    (2*D_RAD + Z_STEP + 2*Z_RAD + OSD_SHADOW)  #define OSD_H    (2*D_RAD + Z_STEP + 2*Z_RAD + OSD_SHADOW)
110    #else
111    #define OSD_H    (2*Z_RAD + OSD_SHADOW)
112    #endif
113    
114    #ifdef OSD_SHADOW_ENABLE
115  #define OSD_LBL_SHADOW (OSD_SHADOW/2)  #define OSD_LBL_SHADOW (OSD_SHADOW/2)
116    #endif
117    
118    #define Z_TOP    ((1-Z_GPS) * (2 * D_RAD + Z_STEP))
119    
 #define Z_TOP    (2 * D_RAD + Z_STEP)  
120  #define Z_MID    (Z_TOP + Z_RAD)  #define Z_MID    (Z_TOP + Z_RAD)
121  #define Z_BOT    (Z_MID + Z_RAD)  #define Z_BOT    (Z_MID + Z_RAD)
122  #define Z_LEFT   (Z_RAD)  #define Z_LEFT   (Z_RAD)
123  #define Z_RIGHT  (2 * D_RAD - Z_RAD)  #define Z_RIGHT  (2 * D_RAD - Z_RAD + Z_GPS * 2 * Z_RAD)
124    #define Z_CENTER ((Z_RIGHT + Z_LEFT)/2)
125    
126  /* create the cairo shape used for the zoom buttons */  /* create the cairo shape used for the zoom buttons */
127  static void  static void
128  osm_gps_map_osd_zoom_shape(cairo_t *cr, gint x, gint y) {  osd_zoom_shape(cairo_t *cr, gint x, gint y)
129    {
130      cairo_move_to (cr, x+Z_LEFT,    y+Z_TOP);      cairo_move_to (cr, x+Z_LEFT,    y+Z_TOP);
131      cairo_line_to (cr, x+Z_RIGHT,   y+Z_TOP);      cairo_line_to (cr, x+Z_RIGHT,   y+Z_TOP);
132      cairo_arc     (cr, x+Z_RIGHT,   y+Z_MID, Z_RAD, -M_PI/2,  M_PI/2);      cairo_arc     (cr, x+Z_RIGHT,   y+Z_MID, Z_RAD, -M_PI/2,  M_PI/2);
# Line 84  osm_gps_map_osd_zoom_shape(cairo_t *cr, Line 134  osm_gps_map_osd_zoom_shape(cairo_t *cr,
134      cairo_arc     (cr, x+Z_LEFT,    y+Z_MID, Z_RAD,  M_PI/2, -M_PI/2);      cairo_arc     (cr, x+Z_LEFT,    y+Z_MID, Z_RAD,  M_PI/2, -M_PI/2);
135  }  }
136    
137    /* ------------------- color/shadow functions ----------------- */
138    
139    #ifndef OSD_COLOR
140    /* if no color has been specified we just use the gdks default colors */
141    static void
142    osd_labels(cairo_t *cr, gint width, gboolean enabled,
143                           GdkColor *fg, GdkColor *disabled) {
144        if(enabled)  gdk_cairo_set_source_color(cr, fg);
145        else         gdk_cairo_set_source_color(cr, disabled);
146        cairo_set_line_width (cr, width);
147    }
148    #else
149    static void
150    osd_labels(cairo_t *cr, gint width, gboolean enabled) {
151        if(enabled)  cairo_set_source_rgb (cr, OSD_COLOR);
152        else         cairo_set_source_rgb (cr, OSD_COLOR_DISABLED);
153        cairo_set_line_width (cr, width);
154    }
155    #endif
156    
157    #ifdef OSD_SHADOW_ENABLE
158    static void
159    osd_labels_shadow(cairo_t *cr, gint width, gboolean enabled) {
160        cairo_set_source_rgba (cr, 0, 0, 0, enabled?0.3:0.15);
161        cairo_set_line_width (cr, width);
162    }
163    #endif
164    
165    #ifndef OSD_NO_DPAD
166  /* create the cairo shape used for the dpad */  /* create the cairo shape used for the dpad */
167  static void  static void
168  osm_gps_map_osd_dpad_shape(cairo_t *cr, gint x, gint y) {  osd_dpad_shape(cairo_t *cr, gint x, gint y)
169    {
170      cairo_arc (cr, x+D_RAD, y+D_RAD, D_RAD, 0, 2 * M_PI);      cairo_arc (cr, x+D_RAD, y+D_RAD, D_RAD, 0, 2 * M_PI);
171  }  }
172    #endif
173    
174    #ifdef OSD_SHADOW_ENABLE
175    static void
176    osd_shape_shadow(cairo_t *cr) {
177        cairo_set_source_rgba (cr, 0, 0, 0, 0.2);
178        cairo_fill (cr);
179        cairo_stroke (cr);
180    }
181    #endif
182    
183    #ifndef OSD_COLOR
184    /* if no color has been specified we just use the gdks default colors */
185    static void
186    osd_shape(cairo_t *cr, GdkColor *bg, GdkColor *fg) {
187        gdk_cairo_set_source_color(cr, bg);
188        cairo_fill_preserve (cr);
189        gdk_cairo_set_source_color(cr, fg);
190        cairo_set_line_width (cr, 1);
191        cairo_stroke (cr);
192    }
193    #else
194    static void
195    osd_shape(cairo_t *cr) {
196        cairo_set_source_rgb (cr, OSD_COLOR_BG);
197        cairo_fill_preserve (cr);
198        cairo_set_source_rgb (cr, OSD_COLOR);
199        cairo_set_line_width (cr, 1);
200        cairo_stroke (cr);
201    }
202    #endif
203    
 typedef enum {  
     OSD_NONE = 0,  
     OSD_BG,  
     OSD_UP,  
     OSD_DOWN,  
     OSD_LEFT,  
     OSD_RIGHT,  
     OSD_IN,  
     OSD_OUT,  
     OSD_GPS  
 } osd_button_t;  
204    
205  static gboolean  static gboolean
206  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)
# Line 108  osm_gps_map_in_circle(gint x, gint y, gi Line 208  osm_gps_map_in_circle(gint x, gint y, gi
208      return( pow(cx - x, 2) + pow(cy - y, 2) < rad * rad);      return( pow(cx - x, 2) + pow(cy - y, 2) < rad * rad);
209  }  }
210    
211    #ifndef OSD_NO_DPAD
212  /* check whether x/y is within the dpad */  /* check whether x/y is within the dpad */
213  static osd_button_t  static osd_button_t
214  osm_gps_map_osd_check_dpad(gint x, gint y)  osd_check_dpad(gint x, gint y)
215  {  {
216      /* within entire dpad circle */      /* within entire dpad circle */
217      if( osm_gps_map_in_circle(x, y, OSD_X + D_RAD, OSD_Y + D_RAD, D_RAD))      if( osm_gps_map_in_circle(x, y, D_RAD, D_RAD, D_RAD))
218      {      {
219          /* convert into position relative to dpads centre */          /* convert into position relative to dpads centre */
220          x -= (OSD_X + D_RAD);          x -= D_RAD;
221          y -= (OSD_Y + D_RAD);          y -= D_RAD;
222    
223    #ifdef OSD_GPS_BUTTON
224          /* check for dpad center goes here! */          /* check for dpad center goes here! */
225          if( osm_gps_map_in_circle(x, y, 0, 0, D_RAD/3))          if( osm_gps_map_in_circle(x, y, 0, 0, D_RAD/3))
226              return OSD_GPS;              return OSD_GPS;
227    #endif
228    
229          if( y < 0 && abs(x) < abs(y))          if( y < 0 && abs(x) < abs(y))
230              return OSD_UP;              return OSD_UP;
# Line 139  osm_gps_map_osd_check_dpad(gint x, gint Line 242  osm_gps_map_osd_check_dpad(gint x, gint
242      }      }
243      return OSD_NONE;      return OSD_NONE;
244  }  }
245    #endif
246    
247  /* check whether x/y is within the zoom pads */  /* check whether x/y is within the zoom pads */
248  static osd_button_t  static osd_button_t
249  osm_gps_map_osd_check_zoom(gint x, gint y) {  osd_check_zoom(gint x, gint y) {
250      if( x > OSD_X && x < (OSD_X + OSD_W) && y > Z_TOP && y < (OSD_Y+Z_BOT)) {      if( x > 0 && x < OSD_W && y > Z_TOP && y < Z_BOT) {
251    
252          /* within circle around (-) label */          /* within circle around (-) label */
253          if( osm_gps_map_in_circle(x, y, OSD_X + Z_LEFT, OSD_Y + Z_MID, Z_RAD))          if( osm_gps_map_in_circle(x, y, Z_LEFT, Z_MID, Z_RAD))
             return OSD_OUT;  
   
         /* between center of (-) button and center of entire zoom control area */  
         if(x > OSD_LEFT && x < OSD_X + D_RAD)  
254              return OSD_OUT;              return OSD_OUT;
255    
256          /* within circle around (+) label */          /* within circle around (+) label */
257          if( osm_gps_map_in_circle(x, y, OSD_X + Z_RIGHT, OSD_Y + Z_MID, Z_RAD))          if( osm_gps_map_in_circle(x, y, Z_RIGHT, Z_MID, Z_RAD))
258              return OSD_IN;              return OSD_IN;
259    
260    #if Z_GPS == 1
261            /* within square around center */
262            if( x > Z_CENTER - Z_RAD && x < Z_CENTER + Z_RAD)
263                return OSD_GPS;
264    #endif
265    
266            /* between center of (-) button and center of entire zoom control area */
267            if(x > OSD_LEFT && x < D_RAD)
268                return OSD_OUT;
269    
270          /* between center of (+) button and center of entire zoom control area */          /* between center of (+) button and center of entire zoom control area */
271          if(x < OSD_RIGHT && x > OSD_X + D_RAD)          if(x < OSD_RIGHT && x > D_RAD)
272              return OSD_IN;              return OSD_IN;
273      }      }
274    
275      return OSD_NONE;      return OSD_NONE;
276  }  }
277    
278    #ifdef OSD_SOURCE_SEL
279    
280    /* place source selection at right border */
281    #define OSD_S_RAD (Z_RAD)
282    #define OSD_S_X   (-OSD_X)
283    #define OSD_S_Y   (OSD_Y)
284    #define OSD_S_PW  (2 * Z_RAD)
285    #define OSD_S_W   (OSD_S_PW)
286    #define OSD_S_PH  (2 * Z_RAD)
287    #define OSD_S_H   (OSD_S_PH + OSD_SHADOW)
288    
289    /* size of usable area when expanded */
290    #define OSD_S_AREA_W (priv->width)
291    #define OSD_S_AREA_H (priv->height)
292    #define OSD_S_EXP_W  (OSD_S_PW + OSD_S_AREA_W + OSD_SHADOW)
293    #define OSD_S_EXP_H  (OSD_S_AREA_H + OSD_SHADOW)
294    
295    /* internal value to draw the arrow on the "puller" */
296    #define OSD_S_D0  (OSD_S_RAD/2)
297    #ifndef OSD_FONT_SIZE
298    #define OSD_FONT_SIZE 16.0
299    #endif
300    #define OSD_TEXT_BORDER   (OSD_FONT_SIZE/2)
301    #define OSD_TEXT_SKIP     (OSD_FONT_SIZE/8)
302    
303    /* draw the shape of the source selection OSD, either only the puller (not expanded) */
304    /* or the entire menu incl. the puller (expanded) */
305    static void
306    osd_source_shape(osd_priv_t *priv, cairo_t *cr, gint x, gint y) {
307        if(!priv->expanded) {
308            /* just draw the puller */
309            cairo_move_to (cr, x + OSD_S_PW, y + OSD_S_PH);
310            cairo_arc (cr, x+OSD_S_RAD, y+OSD_S_RAD, OSD_S_RAD, M_PI/2, -M_PI/2);
311            cairo_line_to (cr, x + OSD_S_PW, y);
312        } else {
313            /* draw the puller and the area itself */
314            cairo_move_to (cr, x + OSD_S_PW + OSD_S_AREA_W, y + OSD_S_AREA_H);
315            cairo_line_to (cr, x + OSD_S_PW, y + OSD_S_AREA_H);
316            if(OSD_S_Y > 0) {
317                cairo_line_to (cr, x + OSD_S_PW, y + OSD_S_PH);
318                cairo_arc (cr, x+OSD_S_RAD, y+OSD_S_RAD, OSD_S_RAD, M_PI/2, -M_PI/2);
319            } else {
320                cairo_arc (cr, x+OSD_S_RAD, y+OSD_S_AREA_H-OSD_S_RAD, OSD_S_RAD, M_PI/2, -M_PI/2);
321                cairo_line_to (cr, x + OSD_S_PW, y + OSD_S_AREA_H - OSD_S_PH);
322                cairo_line_to (cr, x + OSD_S_PW, y);
323            }
324            cairo_line_to (cr, x + OSD_S_PW + OSD_S_AREA_W, y);
325            cairo_close_path (cr);
326        }
327    }
328    
329    static void
330    osd_source_content(osm_gps_map_osd_t *osd, cairo_t *cr, gint offset) {
331        osd_priv_t *priv = (osd_priv_t*)osd->priv;
332    
333        int py = offset + OSD_S_RAD - OSD_S_D0;
334    
335        if(!priv->expanded) {
336            /* draw the "puller" open (<) arrow */
337            cairo_move_to (cr, offset + OSD_S_RAD + OSD_S_D0/2, py);
338            cairo_rel_line_to (cr, -OSD_S_D0, +OSD_S_D0);
339            cairo_rel_line_to (cr, +OSD_S_D0, +OSD_S_D0);
340        } else {
341            if(OSD_S_Y < 0)
342                py += OSD_S_AREA_H - OSD_S_PH;
343    
344            /* draw the "puller" close (>) arrow */
345            cairo_move_to (cr, offset + OSD_S_RAD - OSD_S_D0/2, py);
346            cairo_rel_line_to (cr, +OSD_S_D0, +OSD_S_D0);
347            cairo_rel_line_to (cr, -OSD_S_D0, +OSD_S_D0);
348            cairo_stroke(cr);
349    
350            /* don't draw a shadow for the text content */
351            if(offset == 1) {
352                gint source;
353                g_object_get(osd->widget, "map-source", &source, NULL);
354    
355                cairo_select_font_face (cr, "Sans",
356                                        CAIRO_FONT_SLANT_NORMAL,
357                                        CAIRO_FONT_WEIGHT_BOLD);
358                cairo_set_font_size (cr, OSD_FONT_SIZE);
359    
360                int i, step = (priv->height - 2*OSD_TEXT_BORDER) /
361                    OSM_GPS_MAP_SOURCE_LAST;
362                for(i=OSM_GPS_MAP_SOURCE_NULL+1;i<=OSM_GPS_MAP_SOURCE_LAST;i++) {
363                    cairo_text_extents_t extents;
364                    const char *src = osm_gps_map_source_get_friendly_name(i);
365                    cairo_text_extents (cr, src, &extents);
366    
367                    int x = offset + OSD_S_PW + OSD_TEXT_BORDER;
368                    int y = offset + step * (i-1) + OSD_TEXT_BORDER;
369    
370                    /* draw filled rectangle if selected */
371                    if(source == i) {
372                        cairo_rectangle(cr, x - OSD_TEXT_BORDER/2,
373                                        y - OSD_TEXT_SKIP,
374                                        priv->width - OSD_TEXT_BORDER,
375                                        step + OSD_TEXT_SKIP);
376                        cairo_fill(cr);
377    
378                        /* temprarily draw with background color */
379    #ifndef OSD_COLOR
380                        GdkColor bg = osd->widget->style->bg[GTK_STATE_NORMAL];
381                        gdk_cairo_set_source_color(cr, &bg);
382    #else
383                        cairo_set_source_rgb (cr, OSD_COLOR_BG);
384    #endif
385                    }
386    
387                    cairo_move_to (cr, x, y + OSD_TEXT_SKIP - extents.y_bearing);
388                    cairo_show_text (cr, src);
389    
390                    /* restore color */
391                    if(source == i) {
392    #ifndef OSD_COLOR
393                        GdkColor fg = osd->widget->style->fg[GTK_STATE_NORMAL];
394                        gdk_cairo_set_source_color(cr, &fg);
395    #else
396                        cairo_set_source_rgb (cr, OSD_COLOR);
397    #endif
398                    }
399                }
400            }
401        }
402    }
403    
404    static void
405    osd_render_source_sel(osm_gps_map_osd_t *osd) {
406        osd_priv_t *priv = (osd_priv_t*)osd->priv;
407    
408    #ifndef OSD_COLOR
409        GdkColor bg = GTK_WIDGET(osd->widget)->style->bg[GTK_STATE_NORMAL];
410        GdkColor fg = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_NORMAL];
411        GdkColor da = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_INSENSITIVE];
412    #endif
413    
414        /* draw source selector */
415        cairo_t *cr = cairo_create(priv->map_source);
416        cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
417        cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0);
418        cairo_paint(cr);
419        cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
420    
421    #ifdef OSD_SHADOW_ENABLE
422        osd_source_shape(priv, cr, 1+OSD_SHADOW, 1+OSD_SHADOW);
423        osd_shape_shadow(cr);
424    #endif
425    
426        osd_source_shape(priv, cr, 1, 1);
427    #ifndef OSD_COLOR
428        osd_shape(cr, &bg, &fg);
429    #else
430        osd_shape(cr);
431    #endif
432    
433    #ifdef OSD_SHADOW_ENABLE
434        osd_labels_shadow(cr, Z_RAD/3, TRUE);
435        osd_source_content(osd, cr, 1+OSD_LBL_SHADOW);
436        cairo_stroke (cr);
437    #endif
438    #ifndef OSD_COLOR
439        osd_labels(cr, Z_RAD/3, TRUE, &fg, &da);
440    #else
441        osd_labels(cr, Z_RAD/3, TRUE);
442    #endif
443        osd_source_content(osd, cr, 1);
444        cairo_stroke (cr);
445    
446        cairo_destroy(cr);
447    }
448    
449    /* re-allocate the buffer used to draw the menu. This is used */
450    /* to collapse/expand the buffer */
451    static void
452    osd_source_reallocate(osm_gps_map_osd_t *osd) {
453        osd_priv_t *priv = (osd_priv_t*)osd->priv;
454    
455        /* re-allocate offscreen bitmap */
456        g_assert (priv->map_source);
457    
458        int w = OSD_S_W, h = OSD_S_H;
459        if(priv->expanded) {
460            cairo_text_extents_t extents;
461    
462            /* determine content size */
463            cairo_t *cr = cairo_create(priv->map_source);
464            cairo_select_font_face (cr, "Sans",
465                                    CAIRO_FONT_SLANT_NORMAL,
466                                    CAIRO_FONT_WEIGHT_BOLD);
467            cairo_set_font_size (cr, OSD_FONT_SIZE);
468    
469            /* calculate menu size */
470            int i, max_h = 0, max_w = 0;
471            for(i=OSM_GPS_MAP_SOURCE_NULL+1;i<=OSM_GPS_MAP_SOURCE_LAST;i++) {
472                const char *src = osm_gps_map_source_get_friendly_name(i);
473                cairo_text_extents (cr, src, &extents);
474    
475                if(extents.width > max_w) max_w = extents.width;
476                if(extents.height > max_h) max_h = extents.height;
477            }
478            cairo_destroy(cr);
479    
480            priv->width  = max_w + 2*OSD_TEXT_BORDER;
481            priv->height = OSM_GPS_MAP_SOURCE_LAST *
482                (max_h + 2*OSD_TEXT_SKIP) + 2*OSD_TEXT_BORDER;
483    
484            w = OSD_S_EXP_W;
485            h = OSD_S_EXP_H;
486        }
487    
488        cairo_surface_destroy(priv->map_source);
489        priv->map_source =
490            cairo_image_surface_create(CAIRO_FORMAT_ARGB32, w+2, h+2);
491    
492        osd_render_source_sel(osd);
493    }
494    
495    #define OSD_HZ      15
496    #define OSD_TIME    500
497    
498    static gboolean osd_source_animate(gpointer data) {
499        osm_gps_map_osd_t *osd = (osm_gps_map_osd_t*)data;
500        osd_priv_t *priv = (osd_priv_t*)osd->priv;
501        int diff = OSD_S_EXP_W - OSD_S_W - OSD_S_X;
502        gboolean done = FALSE;
503        priv->count += priv->dir;
504    
505        /* shifting in */
506        if(priv->dir < 0) {
507            if(priv->count <= 0) {
508                priv->count = 0;
509                done = TRUE;
510            }
511        } else {
512            if(priv->count >= 1000) {
513                priv->expanded = FALSE;
514                osd_source_reallocate(osd);
515    
516                priv->count = 1000;
517                done = TRUE;
518            }
519        }
520    
521    
522        /* count runs linearly from 0 to 1000, map this nicely onto a position */
523    
524        /* nicer sinoid mapping */
525        float m = 0.5-cos(priv->count * M_PI / 1000.0)/2;
526        priv->shift = (osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X) +
527            m * diff;
528    
529        osm_gps_map_repaint(OSM_GPS_MAP(osd->widget));
530    
531        if(done)
532            priv->handler_id = 0;
533    
534        return !done;
535    }
536    
537    /* switch between expand and collapse mode of source selection */
538    static void
539    osd_source_toggle(osm_gps_map_osd_t *osd)
540    {
541        osd_priv_t *priv = (osd_priv_t*)osd->priv;
542    
543        /* ignore clicks while animation is running */
544        if(priv->handler_id)
545            return;
546    
547        /* expand immediately, collapse is handle at the end of the collapse animation */
548        if(!priv->expanded) {
549            priv->expanded = TRUE;
550            osd_source_reallocate(osd);
551    
552            priv->count = 1000;
553            priv->shift = osd->widget->allocation.width - OSD_S_W;
554            priv->dir = -1000/OSD_HZ;
555        } else {
556            priv->count =  0;
557            priv->shift = osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X;
558            priv->dir = +1000/OSD_HZ;
559        }
560    
561        priv->handler_id = gtk_timeout_add(OSD_TIME/OSD_HZ, osd_source_animate, osd);
562    }
563    
564    /* check if the user clicked inside the source selection area */
565    static osd_button_t
566    osd_source_check(osm_gps_map_osd_t *osd, gint x, gint y) {
567        osd_priv_t *priv = (osd_priv_t*)osd->priv;
568    
569        if(!priv->expanded)
570            x -= osd->widget->allocation.width - OSD_S_W;
571        else
572            x -= osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X;
573    
574        if(OSD_S_Y > 0)
575            y -= OSD_S_Y;
576        else
577            y -= osd->widget->allocation.height - OSD_S_PH + OSD_S_Y;
578    
579        /* within square around puller? */
580        if(y > 0 && y < OSD_S_PH && x > 0 && x < OSD_S_PW) {
581            /* really within puller shape? */
582            if(x > Z_RAD || osm_gps_map_in_circle(x, y, Z_RAD, Z_RAD, Z_RAD)) {
583                /* expand source selector */
584                osd_source_toggle(osd);
585    
586                /* tell upper layers that user clicked some background element */
587                /* of the OSD */
588                return OSD_BG;
589            }
590        }
591    
592        /* check for clicks into data area */
593        if(priv->expanded && !priv->handler_id) {
594            /* re-adjust from puller top to content top */
595            if(OSD_S_Y < 0)
596                y += OSD_S_EXP_H - OSD_S_PH;
597    
598            if(x > OSD_S_PW &&
599               x < OSD_S_PW + OSD_S_EXP_W &&
600               y > 0 &&
601               y < OSD_S_EXP_H) {
602    
603                int step = (priv->height - 2*OSD_TEXT_BORDER)
604                    / OSM_GPS_MAP_SOURCE_LAST;
605    
606                y -= OSD_TEXT_BORDER - OSD_TEXT_SKIP;
607                y /= step;
608                y += 1;
609    
610                gint old = 0;
611                g_object_get(osd->widget, "map-source", &old, NULL);
612    
613                if(y > OSM_GPS_MAP_SOURCE_NULL &&
614                   y <= OSM_GPS_MAP_SOURCE_LAST &&
615                   old != y) {
616                    g_object_set(osd->widget, "map-source", y, NULL);
617    
618                    osd_render_source_sel(osd);
619                    osm_gps_map_repaint(OSM_GPS_MAP(osd->widget));
620                }
621    
622                /* return "clicked in OSD background" to prevent further */
623                /* processing by application */
624                return OSD_BG;
625            }
626        }
627    
628        return OSD_NONE;
629    }
630    #endif // OSD_SOURCE_SEL
631    
632  static osd_button_t  static osd_button_t
633  osm_gps_map_osd_check(gint x, gint y) {  osd_check(osm_gps_map_osd_t *osd, gint x, gint y) {
634      osd_button_t but = OSD_NONE;      osd_button_t but = OSD_NONE;
635    
636    #ifdef OSD_SOURCE_SEL
637        /* the source selection area is handles internally */
638        but = osd_source_check(osd, x, y);
639        if(but != OSD_NONE)
640            return but;
641    #endif
642    
643        x -= OSD_X;
644        y -= OSD_Y;
645    
646        if(OSD_X < 0)
647            x -= (osd->widget->allocation.width - OSD_W);
648    
649        if(OSD_Y < 0)
650            y -= (osd->widget->allocation.height - OSD_H);
651    
652      /* first do a rough test for the OSD area. */      /* first do a rough test for the OSD area. */
653      /* this is just to avoid an unnecessary detailed test */      /* this is just to avoid an unnecessary detailed test */
654      if(x > OSD_X && x < OSD_X + OSD_W &&      if(x > 0 && x < OSD_W && y > 0 && y < OSD_H) {
655         y > OSD_Y && y < OSD_Y + OSD_H) {  #ifndef OSD_NO_DPAD
656          but = osm_gps_map_osd_check_dpad(x, y);          but = osd_check_dpad(x, y);
657    #endif
658    
659          if(but == OSD_NONE)          if(but == OSD_NONE)
660              but = osm_gps_map_osd_check_zoom(x, y);              but = osd_check_zoom(x, y);
661      }      }
662    
663      return but;      return but;
664  }  }
665    
666  static void  #ifndef OSD_NO_DPAD
 osm_gps_map_osd_shape_shadow(cairo_t *cr) {  
     cairo_set_source_rgba (cr, 0, 0, 0, 0.2);  
     cairo_fill (cr);  
     cairo_stroke (cr);  
 }  
   
 static void  
 osm_gps_map_osd_shape(cairo_t *cr) {  
     cairo_set_source_rgb (cr, 1, 1, 1);  
     cairo_fill_preserve (cr);  
     cairo_set_source_rgb (cr, OSD_COLOR);  
     cairo_set_line_width (cr, 1);  
     cairo_stroke (cr);  
 }  
   
667  static void  static void
668  osm_gps_map_osd_dpad_labels(cairo_t *cr, gint x, gint y) {  osd_dpad_labels(cairo_t *cr, gint x, gint y) {
669      /* move reference to dpad center */      /* move reference to dpad center */
670      x += D_RAD;      x += D_RAD;
671      y += D_RAD;      y += D_RAD;
# Line 222  osm_gps_map_osd_dpad_labels(cairo_t *cr, Line 688  osm_gps_map_osd_dpad_labels(cairo_t *cr,
688          cairo_rel_line_to (cr, offset[i][2][0], offset[i][2][1]);          cairo_rel_line_to (cr, offset[i][2][0], offset[i][2][1]);
689      }      }
690  }  }
691    #endif
692    
693  /* draw the sattelite dish icon in the center of the dpad */  #ifdef OSD_GPS_BUTTON
694  #define GPS_V0  (D_RAD/8)  /* draw the satellite dish icon in the center of the dpad */
695    #define GPS_V0  (D_RAD/7)
696  #define GPS_V1  (D_RAD/10)  #define GPS_V1  (D_RAD/10)
697  #define GPS_V2  (D_RAD/5)  #define GPS_V2  (D_RAD/5)
698    
699  /* draw a satellite receiver dish */  /* draw a satellite receiver dish */
700    /* this is either drawn in the center of the dpad (if present) */
701    /* or in the middle of the zoom area */
702  static void  static void
703  osm_gps_map_osd_dpad_gps(cairo_t *cr, gint x, gint y) {  osd_dpad_gps(cairo_t *cr, gint x, gint y) {
704      /* move reference to dpad center */      /* move reference to dpad center */
705      x += D_RAD;      x += (1-Z_GPS) * D_RAD + Z_GPS * Z_RAD * 3;
706      y += D_RAD + GPS_V0;      y += (1-Z_GPS) * D_RAD + Z_GPS * Z_RAD + GPS_V0;
707    
708      cairo_move_to (cr, x-GPS_V0, y+GPS_V0);      cairo_move_to (cr, x-GPS_V0, y+GPS_V0);
709      cairo_rel_line_to (cr, +GPS_V0, -GPS_V0);      cairo_rel_line_to (cr, +GPS_V0, -GPS_V0);
# Line 248  osm_gps_map_osd_dpad_gps(cairo_t *cr, gi Line 718  osm_gps_map_osd_dpad_gps(cairo_t *cr, gi
718      cairo_move_to (cr, x, y-GPS_V2);      cairo_move_to (cr, x, y-GPS_V2);
719      cairo_rel_line_to (cr, +GPS_V1, -GPS_V1);      cairo_rel_line_to (cr, +GPS_V1, -GPS_V1);
720  }  }
721    #endif
722    
723  #define Z_LEN  (2*Z_RAD/3)  #define Z_LEN  (2*Z_RAD/3)
724    
725  static void  static void
726  osm_gps_map_osd_zoom_labels(cairo_t *cr, gint x, gint y) {  osd_zoom_labels(cairo_t *cr, gint x, gint y) {
727      cairo_move_to (cr, x + Z_LEFT  - Z_LEN, y + Z_MID);      cairo_move_to (cr, x + Z_LEFT  - Z_LEN, y + Z_MID);
728      cairo_line_to (cr, x + Z_LEFT  + Z_LEN, y + Z_MID);      cairo_line_to (cr, x + Z_LEFT  + Z_LEN, y + Z_MID);
729    
# Line 262  osm_gps_map_osd_zoom_labels(cairo_t *cr, Line 733  osm_gps_map_osd_zoom_labels(cairo_t *cr,
733      cairo_line_to (cr, x + Z_RIGHT + Z_LEN, y + Z_MID);      cairo_line_to (cr, x + Z_RIGHT + Z_LEN, y + Z_MID);
734  }  }
735    
736    #ifdef OSD_COORDINATES
737    #define OSD_COORDINATES_W  100
738    #define OSD_COORDINATES_H   50
739    
740  static void  static void
741  osm_gps_map_osd_labels(cairo_t *cr, gint width, gboolean enabled) {  osd_render_coordinates(osm_gps_map_osd_t *osd)
742      if(enabled)  cairo_set_source_rgb (cr, OSD_COLOR);  {
743      else         cairo_set_source_rgb (cr, OSD_COLOR_DISABLED);      osd_priv_t *priv = (osd_priv_t*)osd->priv;
744      cairo_set_line_width (cr, width);  
745      cairo_stroke (cr);      /* first fill with transparency */
746        cairo_t *cr = cairo_create(priv->coordinates);
747        cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
748        //    cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.0);
749        cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.2);
750        cairo_paint(cr);
751        cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
752    
753        cairo_destroy(cr);
754  }  }
755    #endif  // OSD_COORDINATES
756    
757    #ifdef OSD_CROSSHAIR
758    
759    #ifndef OSD_CROSSHAIR_RADIUS
760    #define OSD_CROSSHAIR_RADIUS 10
761    #endif
762    
763    #define OSD_CROSSHAIR_TICK  (OSD_CROSSHAIR_RADIUS/2)
764    #define OSD_CROSSHAIR_BORDER (OSD_CROSSHAIR_TICK + OSD_CROSSHAIR_RADIUS/4)
765    #define OSD_CROSSHAIR_W  ((OSD_CROSSHAIR_RADIUS+OSD_CROSSHAIR_BORDER)*2)
766    #define OSD_CROSSHAIR_H  ((OSD_CROSSHAIR_RADIUS+OSD_CROSSHAIR_BORDER)*2)
767    
768    static void
769    osd_render_crosshair_shape(cairo_t *cr) {
770        cairo_arc (cr, OSD_CROSSHAIR_W/2, OSD_CROSSHAIR_H/2,
771                   OSD_CROSSHAIR_RADIUS, 0,  2*M_PI);
772    
773        cairo_move_to (cr, OSD_CROSSHAIR_W/2 - OSD_CROSSHAIR_RADIUS,
774                       OSD_CROSSHAIR_H/2);
775        cairo_rel_line_to (cr, -OSD_CROSSHAIR_TICK, 0);
776        cairo_move_to (cr, OSD_CROSSHAIR_W/2 + OSD_CROSSHAIR_RADIUS,
777                       OSD_CROSSHAIR_H/2);
778        cairo_rel_line_to (cr,  OSD_CROSSHAIR_TICK, 0);
779    
780        cairo_move_to (cr, OSD_CROSSHAIR_W/2,
781                       OSD_CROSSHAIR_H/2 - OSD_CROSSHAIR_RADIUS);
782        cairo_rel_line_to (cr, 0, -OSD_CROSSHAIR_TICK);
783        cairo_move_to (cr, OSD_CROSSHAIR_W/2,
784                       OSD_CROSSHAIR_H/2 + OSD_CROSSHAIR_RADIUS);
785        cairo_rel_line_to (cr, 0, OSD_CROSSHAIR_TICK);
786    
 static void  
 osm_gps_map_osd_labels_shadow(cairo_t *cr, gint width, gboolean enabled) {  
     cairo_set_source_rgba (cr, 0, 0, 0, enabled?0.3:0.15);  
     cairo_set_line_width (cr, width);  
787      cairo_stroke (cr);      cairo_stroke (cr);
788  }  }
789    
790  static void  static void
791  osm_gps_map_osd_render(OsmGpsMapPrivate *priv) {  osd_render_crosshair(osm_gps_map_osd_t *osd)
792    {
793        osd_priv_t *priv = (osd_priv_t*)osd->priv;
794    
795      /* first fill with transparency */      /* first fill with transparency */
796      cairo_t *cr = cairo_create(priv->osd.overlay);      cairo_t *cr = cairo_create(priv->crosshair);
797      cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);      cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
798      cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0);      cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.0);
799        //    cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.2);
800      cairo_paint(cr);      cairo_paint(cr);
   
801      cairo_set_operator(cr, CAIRO_OPERATOR_OVER);      cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
802    
803      /* --------- draw zoom and dpad shape shadow ----------- */      cairo_set_line_cap  (cr, CAIRO_LINE_CAP_ROUND);
804      gint x = 0, y = 0;  
805        cairo_set_source_rgba (cr, 1.0, 1.0, 1.0, 0.5);
806      osm_gps_map_osd_zoom_shape(cr, x + OSD_SHADOW, y + OSD_SHADOW);      cairo_set_line_width (cr, OSD_CROSSHAIR_RADIUS/2);
807      osm_gps_map_osd_shape_shadow(cr);      osd_render_crosshair_shape(cr);
808      osm_gps_map_osd_dpad_shape(cr, x + OSD_SHADOW, y + OSD_SHADOW);  
809      osm_gps_map_osd_shape_shadow(cr);      cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 0.5);
810        cairo_set_line_width (cr, OSD_CROSSHAIR_RADIUS/4);
811        osd_render_crosshair_shape(cr);
812    
813      /* --------- draw zoom and dpad shape ----------- */      cairo_destroy(cr);
814    }
815    #endif
816    
817      osm_gps_map_osd_zoom_shape(cr, x, y);  #ifdef OSD_SCALE
     osm_gps_map_osd_shape(cr);  
     osm_gps_map_osd_dpad_shape(cr, x, y);  
     osm_gps_map_osd_shape(cr);  
818    
819      /* --------- draw zoom and dpad labels --------- */  #ifndef OSD_SCALE_FONT_SIZE
820    #define OSD_SCALE_FONT_SIZE 12
821    #endif
822    #define OSD_SCALE_W   (10*OSD_SCALE_FONT_SIZE)
823    #define OSD_SCALE_H   (5*OSD_SCALE_FONT_SIZE/2)
824    
825      osm_gps_map_osd_zoom_labels(cr, x + OSD_LBL_SHADOW, y + OSD_LBL_SHADOW);  /* various parameters used to create the scale */
826      osm_gps_map_osd_dpad_labels(cr, x + OSD_LBL_SHADOW, y + OSD_LBL_SHADOW);  #define OSD_SCALE_H2   (OSD_SCALE_H/2)
827      osm_gps_map_osd_labels_shadow(cr, Z_RAD/3, TRUE);  #define OSD_SCALE_TICK (2*OSD_SCALE_FONT_SIZE/3)
828      osm_gps_map_osd_dpad_gps(cr, x + OSD_LBL_SHADOW, y + OSD_LBL_SHADOW);  #define OSD_SCALE_M    (OSD_SCALE_H2 - OSD_SCALE_TICK)
829      osm_gps_map_osd_labels_shadow(cr, Z_RAD/6, priv->osd.cb != NULL);  #define OSD_SCALE_I    (OSD_SCALE_H2 + OSD_SCALE_TICK)
830    #define OSD_SCALE_FD   (OSD_SCALE_FONT_SIZE/4)
     osm_gps_map_osd_zoom_labels(cr, x, y);  
     osm_gps_map_osd_dpad_labels(cr, x, y);  
     osm_gps_map_osd_labels(cr, Z_RAD/3, TRUE);  
     osm_gps_map_osd_dpad_gps(cr, x, y);  
     osm_gps_map_osd_labels(cr, Z_RAD/6, priv->osd.cb != NULL);  
   
     cairo_destroy(cr);  
 }  
831    
832  static void  static void
833  osm_gps_map_osd_draw_controls (OsmGpsMap *map, gint xoffset, gint yoffset)  osd_render_scale(osm_gps_map_osd_t *osd)
834  {  {
835      OsmGpsMapPrivate *priv = map->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
836    
837      /* backup previous contents */      /* this only needs to be rendered if the zoom has changed */
838      if(!priv->osd.backup)      gint zoom;
839          priv->osd.backup = gdk_pixmap_new(priv->pixmap, OSD_W+2, OSD_H+2, -1);      g_object_get(OSM_GPS_MAP(osd->widget), "zoom", &zoom, NULL);
840        if(zoom == priv->scale_zoom)
841      gint x = OSD_X + EXTRA_BORDER + xoffset;          return;
     gint y = OSD_Y + EXTRA_BORDER + yoffset;  
842    
843      /* create backup of background */      priv->scale_zoom = zoom;
     gdk_draw_drawable(priv->osd.backup,  
         GTK_WIDGET(map)->style->fg_gc[GTK_WIDGET_STATE(GTK_WIDGET(map))],  
                       priv->pixmap, x-1, y-1, 0, 0, OSD_W+2, OSD_H+2);  
844    
845      priv->osd.backup_x = x-1;      float m_per_pix = osm_gps_map_get_scale(OSM_GPS_MAP(osd->widget));
     priv->osd.backup_y = y-1;  
846    
847        /* first fill with transparency */
848        cairo_t *cr = cairo_create(priv->scale);
849        cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
850        cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0);
851        // pink for testing:    cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.2);
852        cairo_paint(cr);
853        cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
854    
855  #ifdef USE_CAIRO      /* determine the size of the scale width in meters */
856      /* OSD itself uses some off-screen rendering, so check if the */      float width = (OSD_SCALE_W-OSD_SCALE_FONT_SIZE/6) * m_per_pix;
857      /* offscreen buffer is present and create it if not */  
858      if(!priv->osd.overlay) {      /* scale this to useful values */
859          /* create overlay ... */      int exp = logf(width)*M_LOG10E;
860          priv->osd.overlay =      int mant = width/pow(10,exp);
861              cairo_image_surface_create(CAIRO_FORMAT_ARGB32, OSD_W, OSD_H);      int width_metric = mant * pow(10,exp);
862          /* ... and render it */      char *dist_str = NULL;
863          osm_gps_map_osd_render(priv);      if(width_metric<1000)
864            dist_str = g_strdup_printf("%u m", width_metric);
865        else
866            dist_str = g_strdup_printf("%u km", width_metric/1000);
867        width_metric /= m_per_pix;
868    
869        /* and now the hard part: scale for useful imperial values :-( */
870        /* try to convert to feet, 1ft == 0.3048 m */
871        width /= 0.3048;
872        float imp_scale = 0.3048;
873        char *dist_imp_unit = "ft";
874    
875        if(width >= 100) {
876            /* 1yd == 3 feet */
877            width /= 3.0;
878            imp_scale *= 3.0;
879            dist_imp_unit = "yd";
880    
881            if(width >= 1760.0) {
882                /* 1mi == 1760 yd */
883                width /= 1760.0;
884                imp_scale *= 1760.0;
885                dist_imp_unit = "mi";
886            }
887      }      }
888    
889      // now draw this onto the original context      /* also convert this to full tens/hundreds */
890      cairo_t *cr = gdk_cairo_create(priv->pixmap);      exp = logf(width)*M_LOG10E;
891      cairo_set_source_surface(cr, priv->osd.overlay, x, y);      mant = width/pow(10,exp);
892      cairo_paint(cr);      int width_imp = mant * pow(10,exp);
893      cairo_destroy(cr);      char *dist_str_imp = g_strdup_printf("%u %s", width_imp, dist_imp_unit);
894    
895        /* convert back to pixels */
896        width_imp *= imp_scale;
897        width_imp /= m_per_pix;
898    
899        cairo_select_font_face (cr, "Sans",
900                                CAIRO_FONT_SLANT_NORMAL,
901                                CAIRO_FONT_WEIGHT_BOLD);
902        cairo_set_font_size (cr, OSD_SCALE_FONT_SIZE);
903        cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 1.0);
904    
905        cairo_text_extents_t extents;
906        cairo_text_extents (cr, dist_str, &extents);
907    
908        cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
909        cairo_set_line_width (cr, OSD_SCALE_FONT_SIZE/6);
910        cairo_move_to (cr, 2*OSD_SCALE_FD, OSD_SCALE_H2-OSD_SCALE_FD);
911        cairo_text_path (cr, dist_str);
912        cairo_stroke (cr);
913        cairo_move_to (cr, 2*OSD_SCALE_FD,
914                       OSD_SCALE_H2+OSD_SCALE_FD + extents.height);
915        cairo_text_path (cr, dist_str_imp);
916        cairo_stroke (cr);
917    
918  #else      cairo_set_source_rgb(cr, 0.0, 0.0, 0.0);
919  #warning "OSD control display lacks a non-cairo implementation!"      cairo_move_to (cr, 2*OSD_SCALE_FD, OSD_SCALE_H2-OSD_SCALE_FD);
920  #endif      cairo_show_text (cr, dist_str);
921        cairo_move_to (cr, 2*OSD_SCALE_FD,
922                       OSD_SCALE_H2+OSD_SCALE_FD + extents.height);
923        cairo_show_text (cr, dist_str_imp);
924    
925        g_free(dist_str);
926        g_free(dist_str_imp);
927    
928        /* draw white line */
929        cairo_set_line_cap  (cr, CAIRO_LINE_CAP_ROUND);
930        cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 1.0);
931        cairo_set_line_width (cr, OSD_SCALE_FONT_SIZE/3);
932        cairo_move_to (cr, OSD_SCALE_FONT_SIZE/6, OSD_SCALE_M);
933        cairo_rel_line_to (cr, 0,  OSD_SCALE_TICK);
934        cairo_rel_line_to (cr, width_metric, 0);
935        cairo_rel_line_to (cr, 0, -OSD_SCALE_TICK);
936        cairo_stroke(cr);
937        cairo_move_to (cr, OSD_SCALE_FONT_SIZE/6, OSD_SCALE_I);
938        cairo_rel_line_to (cr, 0, -OSD_SCALE_TICK);
939        cairo_rel_line_to (cr, width_imp, 0);
940        cairo_rel_line_to (cr, 0, +OSD_SCALE_TICK);
941        cairo_stroke(cr);
942    
943        /* draw black line */
944        cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 1.0);
945        cairo_set_line_width (cr, OSD_SCALE_FONT_SIZE/6);
946        cairo_move_to (cr, OSD_SCALE_FONT_SIZE/6, OSD_SCALE_M);
947        cairo_rel_line_to (cr, 0,  OSD_SCALE_TICK);
948        cairo_rel_line_to (cr, width_metric, 0);
949        cairo_rel_line_to (cr, 0, -OSD_SCALE_TICK);
950        cairo_stroke(cr);
951        cairo_move_to (cr, OSD_SCALE_FONT_SIZE/6, OSD_SCALE_I);
952        cairo_rel_line_to (cr, 0, -OSD_SCALE_TICK);
953        cairo_rel_line_to (cr, width_imp, 0);
954        cairo_rel_line_to (cr, 0, +OSD_SCALE_TICK);
955        cairo_stroke(cr);
956    
957        cairo_destroy(cr);
958  }  }
959    #endif
960    
961  static void  static void
962  osm_gps_map_osd_restore (OsmGpsMap *map)  osd_render(osm_gps_map_osd_t *osd)
963  {  {
964      OsmGpsMapPrivate *priv = map->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
   
     /* restore backup of previous contents */  
     if(priv->osd.backup) {  
         /* create backup of background */  
         gdk_draw_drawable(priv->pixmap,  
             GTK_WIDGET(map)->style->fg_gc[GTK_WIDGET_STATE(GTK_WIDGET(map))],  
                       priv->osd.backup, 0, 0,  
                       priv->osd.backup_x, priv->osd.backup_y, OSD_W+2, OSD_H+2);  
     }  
 }  
965    
966    #ifndef OSD_COLOR
967        GdkColor bg = GTK_WIDGET(osd->widget)->style->bg[GTK_STATE_NORMAL];
968        GdkColor fg = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_NORMAL];
969        GdkColor da = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_INSENSITIVE];
970  #endif  #endif
971    
972  static gboolean      /* first fill with transparency */
973  osm_gps_map_map_redraw (OsmGpsMap *map)      cairo_t *cr = cairo_create(priv->overlay);
974  {      cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
975      OsmGpsMapPrivate *priv = map->priv;      cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0);
976        cairo_paint(cr);
977      priv->idle_map_redraw = 0;      cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
   
     /* the motion_notify handler uses priv->pixmap to redraw the area; if we  
      * change it while we are dragging, we will end up showing it in the wrong  
      * place. This could be fixed by carefully recompute the coordinates, but  
      * for now it's easier just to disable redrawing the map while dragging */  
     if (priv->dragging)  
         return FALSE;  
   
     priv->redraw_cycle++;  
   
     /* draw white background to initialise pixmap */  
     gdk_draw_rectangle (  
                         priv->pixmap,  
                         GTK_WIDGET(map)->style->white_gc,  
                         TRUE,  
                         0, 0,  
                         GTK_WIDGET(map)->allocation.width + EXTRA_BORDER * 2,  
                         GTK_WIDGET(map)->allocation.height + EXTRA_BORDER * 2);  
   
     osm_gps_map_fill_tiles_pixel(map);  
   
     osm_gps_map_print_tracks(map);  
     osm_gps_map_draw_gps_point(map);  
     osm_gps_map_print_images(map);  
 #ifdef ENABLE_BALLOON  
     osm_gps_map_draw_balloon_int(map);  
 #endif  
 #ifdef ENABLE_OSD  
     osm_gps_map_osd_draw_controls(map, 0, 0);  
 #endif  
   
     //osm_gps_map_osd_speed(map, 1.5);  
     osm_gps_map_purge_cache(map);  
     gtk_widget_queue_draw (GTK_WIDGET (map));  
   
     return FALSE;  
 }  
   
 static void  
 osm_gps_map_map_redraw_idle (OsmGpsMap *map)  
 {  
     OsmGpsMapPrivate *priv = map->priv;  
   
     if (priv->idle_map_redraw == 0)  
         priv->idle_map_redraw = g_idle_add ((GSourceFunc)osm_gps_map_map_redraw, map);  
 }  
   
 static void  
 osm_gps_map_init (OsmGpsMap *object)  
 {  
     OsmGpsMapPrivate *priv;  
   
     priv = G_TYPE_INSTANCE_GET_PRIVATE (object, OSM_TYPE_GPS_MAP, OsmGpsMapPrivate);  
     object->priv = priv;  
   
     priv->pixmap = NULL;  
   
     priv->trip_history = NULL;  
     priv->gps = g_new0(coord_t, 1);  
     priv->gps_valid = FALSE;  
978    
979  #ifdef ENABLE_BALLOON      /* --------- draw zoom and dpad shape shadow ----------- */
980      priv->balloon.coo = g_new0(coord_t, 1);  #ifdef OSD_SHADOW_ENABLE
981      priv->balloon.valid = FALSE;      osd_zoom_shape(cr, 1+OSD_SHADOW, 1+OSD_SHADOW);
982      priv->balloon.cb = NULL;      osd_shape_shadow(cr);
983    #ifndef OSD_NO_DPAD
984        osd_dpad_shape(cr, 1+OSD_SHADOW, 1+OSD_SHADOW);
985        osd_shape_shadow(cr);
986  #endif  #endif
   
 #ifdef ENABLE_OSD  
     priv->osd.backup = NULL;  
     priv->osd.overlay = NULL;  
     priv->osd.cb = NULL;  
987  #endif  #endif
988    
989      priv->tracks = NULL;      /* --------- draw zoom and dpad shape ----------- */
     priv->images = NULL;  
   
     priv->drag_counter = 0;  
     priv->drag_mouse_dx = 0;  
     priv->drag_mouse_dy = 0;  
     priv->drag_start_mouse_x = 0;  
     priv->drag_start_mouse_y = 0;  
   
     priv->uri_format = 0;  
     priv->the_google = FALSE;  
   
     priv->map_source = -1;  
990    
991  #ifndef LIBSOUP22      osd_zoom_shape(cr, 1, 1);
992      //Change naumber of concurrent connections option?  #ifndef OSD_COLOR
993      priv->soup_session = soup_session_async_new_with_options(      osd_shape(cr, &bg, &fg);
                                                              SOUP_SESSION_USER_AGENT,  
                                                              "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.11) Gecko/20071127 Firefox/2.0.0.11",  
                                                              NULL);  
994  #else  #else
995      /* libsoup-2.2 seems not to be able to set the user agent */      osd_shape(cr);
996      priv->soup_session = soup_session_async_new();  #endif
997    #ifndef OSD_NO_DPAD
998        osd_dpad_shape(cr, 1, 1);
999    #ifndef OSD_COLOR
1000        osd_shape(cr, &bg, &fg);
1001    #else
1002        osd_shape(cr);
1003  #endif  #endif
   
     //Hash table which maps tile d/l URIs to SoupMessage requests  
     priv->tile_queue = g_hash_table_new (g_str_hash, g_str_equal);  
   
     //Some mapping providers (Google) have varying degrees of tiles at multiple  
     //zoom levels  
     priv->missing_tiles = g_hash_table_new (g_str_hash, g_str_equal);  
   
     /* memory cache for most recently used tiles */  
     priv->tile_cache = g_hash_table_new_full (g_str_hash, g_str_equal,  
                                               g_free, (GDestroyNotify)cached_tile_free);  
     priv->max_tile_cache_size = 20;  
   
     gtk_widget_add_events (GTK_WIDGET (object),  
                            GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |  
                            GDK_POINTER_MOTION_MASK |  
                            GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK);  
     GTK_WIDGET_SET_FLAGS (object, GTK_CAN_FOCUS);  
   
     g_log_set_handler (G_LOG_DOMAIN, G_LOG_LEVEL_MASK, my_log_handler, NULL);  
 }  
   
 #ifndef G_CHECKSUM_MD5  
 /* simple hash algorithm hack if md5 is not present */  
 static char *simple_hash(char *str) {  
     union {  
         char str[4];  
         gulong val;  
     } hash = { .val = 0x55555555 };  
   
     while(*str) {  
         hash.str[(int)str & 3] ^= *str;  
         str++;  
     }  
     return g_strdup_printf("%08lX", hash.val);  
 }  
1004  #endif  #endif
1005    
1006  static GObject *      /* --------- draw zoom and dpad labels --------- */
 osm_gps_map_constructor (GType gtype, guint n_properties, GObjectConstructParam *properties)  
 {  
     GObject *object;  
     OsmGpsMapPrivate *priv;  
     OsmGpsMap *map;  
     const char *uri;  
   
     //Always chain up to the parent constructor  
     object = G_OBJECT_CLASS(osm_gps_map_parent_class)->constructor(gtype, n_properties, properties);  
     map = OSM_GPS_MAP(object);  
     priv = OSM_GPS_MAP_PRIVATE(object);  
   
     //user can specify a map source ID, or a repo URI as the map source  
     uri = osm_gps_map_source_get_repo_uri(OSM_GPS_MAP_SOURCE_NULL);  
     if ( (priv->map_source == 0) || (strcmp(priv->repo_uri, uri) == 0) ) {  
         g_debug("Using null source");  
         priv->map_source = OSM_GPS_MAP_SOURCE_NULL;  
1007    
1008          priv->null_tile = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, 256, 256);  #ifdef OSD_SHADOW_ENABLE
1009          gdk_pixbuf_fill(priv->null_tile, 0xcccccc00);      osd_labels_shadow(cr, Z_RAD/3, TRUE);
1010      }      osd_zoom_labels(cr, 1+OSD_LBL_SHADOW, 1+OSD_LBL_SHADOW);
1011      else if (priv->map_source >= 0) {  #ifndef OSD_NO_DPAD
1012          //check if the source given is valid      osd_dpad_labels(cr, 1+OSD_LBL_SHADOW, 1+OSD_LBL_SHADOW);
1013          uri = osm_gps_map_source_get_repo_uri(priv->map_source);  #endif
1014          if (uri) {      cairo_stroke(cr);
1015              g_debug("Setting map source from ID");  #ifdef OSD_GPS_BUTTON
1016              g_free(priv->repo_uri);      osd_labels_shadow(cr, Z_RAD/6, osd->cb != NULL);
1017        osd_dpad_gps(cr, 1+OSD_LBL_SHADOW, 1+OSD_LBL_SHADOW);
1018              priv->repo_uri = g_strdup(uri);      cairo_stroke(cr);
1019              priv->image_format = g_strdup(  #endif
1020                  osm_gps_map_source_get_image_format(priv->map_source));  #endif
             priv->max_zoom = osm_gps_map_source_get_max_zoom(priv->map_source);  
             priv->min_zoom = osm_gps_map_source_get_min_zoom(priv->map_source);  
         }  
     }  
1021    
1022      if (!priv->cache_dir_is_full_path) {  #ifndef OSD_COLOR
1023  #ifdef G_CHECKSUM_MD5      osd_labels(cr, Z_RAD/3, TRUE, &fg, &da);
         char *md5 = g_compute_checksum_for_string (G_CHECKSUM_MD5, priv->repo_uri, -1);  
1024  #else  #else
1025          char *md5 = simple_hash(priv->repo_uri);      osd_labels(cr, Z_RAD/3, TRUE);
1026  #endif  #endif
1027        osd_zoom_labels(cr, 1, 1);
1028          if (priv->cache_dir) {  #ifndef OSD_NO_DPAD
1029              char *old = priv->cache_dir;      osd_dpad_labels(cr, 1, 1);
             //the new cachedir is the given cache dir + the md5 of the repo_uri  
             priv->cache_dir = g_strdup_printf("%s%c%s", old, G_DIR_SEPARATOR, md5);  
             g_debug("Adjusting cache dir %s -> %s", old, priv->cache_dir);  
             g_free(old);  
         } else {  
             //the new cachedir is the current dir + the md5 of the repo_uri  
             priv->cache_dir = g_strdup(md5);  
         }  
   
         g_free(md5);  
     }  
   
     inspect_map_uri(map);  
   
     return object;  
 }  
   
 static void  
 osm_gps_map_dispose (GObject *object)  
 {  
     OsmGpsMap *map = OSM_GPS_MAP(object);  
     OsmGpsMapPrivate *priv = map->priv;  
   
     if (priv->is_disposed)  
         return;  
   
     priv->is_disposed = TRUE;  
   
     soup_session_abort(priv->soup_session);  
     g_object_unref(priv->soup_session);  
   
     g_hash_table_destroy(priv->tile_queue);  
     g_hash_table_destroy(priv->missing_tiles);  
     g_hash_table_destroy(priv->tile_cache);  
   
     osm_gps_map_free_images(map);  
   
     if(priv->pixmap)  
         g_object_unref (priv->pixmap);  
   
     if (priv->null_tile)  
         g_object_unref (priv->null_tile);  
   
     if(priv->gc_map)  
         g_object_unref(priv->gc_map);  
   
     if (priv->idle_map_redraw != 0)  
         g_source_remove (priv->idle_map_redraw);  
   
     g_free(priv->gps);  
   
 #ifdef ENABLE_BALLOON  
     g_free(priv->balloon.coo);  
1030  #endif  #endif
1031        cairo_stroke(cr);
1032    
1033  #ifdef ENABLE_OSD  #ifndef OSD_COLOR
1034      if (priv->osd.backup)      osd_labels(cr, Z_RAD/6, osd->cb != NULL, &fg, &da);
1035          g_object_unref(priv->osd.backup);  #else
1036        osd_labels(cr, Z_RAD/6, osd->cb != NULL);
     if (priv->osd.overlay)  
          cairo_surface_destroy(priv->osd.overlay);  
1037  #endif  #endif
1038    #ifdef OSD_GPS_BUTTON
1039        osd_dpad_gps(cr, 1, 1);
1040    #endif
1041        cairo_stroke(cr);
1042    
1043        cairo_destroy(cr);
1044    
1045      G_OBJECT_CLASS (osm_gps_map_parent_class)->dispose (object);  #ifdef OSD_SOURCE_SEL
1046  }      osd_render_source_sel(osd);
1047    #endif
 static void  
 osm_gps_map_finalize (GObject *object)  
 {  
     OsmGpsMap *map = OSM_GPS_MAP(object);  
     OsmGpsMapPrivate *priv = map->priv;  
   
     g_free(priv->cache_dir);  
     g_free(priv->repo_uri);  
     g_free(priv->image_format);  
   
     osm_gps_map_free_trip(map);  
     osm_gps_map_free_tracks(map);  
   
     G_OBJECT_CLASS (osm_gps_map_parent_class)->finalize (object);  
 }  
   
 static void  
 osm_gps_map_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)  
 {  
     g_return_if_fail (OSM_IS_GPS_MAP (object));  
     OsmGpsMap *map = OSM_GPS_MAP(object);  
     OsmGpsMapPrivate *priv = map->priv;  
1048    
1049      switch (prop_id)  #ifdef OSD_SCALE
1050      {      osd_render_scale(osd);
1051          case PROP_AUTO_CENTER:  #endif
             priv->map_auto_center = g_value_get_boolean (value);  
             break;  
         case PROP_RECORD_TRIP_HISTORY:  
             priv->record_trip_history = g_value_get_boolean (value);  
             break;  
         case PROP_SHOW_TRIP_HISTORY:  
             priv->show_trip_history = g_value_get_boolean (value);  
             break;  
         case PROP_AUTO_DOWNLOAD:  
             priv->map_auto_download = g_value_get_boolean (value);  
             break;  
         case PROP_REPO_URI:  
             priv->repo_uri = g_value_dup_string (value);  
             break;  
         case PROP_PROXY_URI:  
             if ( g_value_get_string(value) ) {  
                 priv->proxy_uri = g_value_dup_string (value);  
                 g_debug("Setting proxy server: %s", priv->proxy_uri);  
   
 #ifndef LIBSOUP22  
                 GValue val = {0};  
   
                 SoupURI* uri = soup_uri_new(priv->proxy_uri);  
                 g_value_init(&val, SOUP_TYPE_URI);  
                 g_value_take_boxed(&val, uri);  
1052    
1053                  g_object_set_property(G_OBJECT(priv->soup_session),SOUP_SESSION_PROXY_URI,&val);  #ifdef OSD_CROSSHAIR
1054  #else      osd_render_crosshair(osd);
                 SoupUri* uri = soup_uri_new(priv->proxy_uri);  
                 g_object_set(G_OBJECT(priv->soup_session), SOUP_SESSION_PROXY_URI, uri, NULL);  
1055  #endif  #endif
             } else  
                 priv->proxy_uri = NULL;  
1056    
1057              break;  #ifdef OSD_COORDINATES
1058          case PROP_TILE_CACHE_DIR:      osd_render_coordinates(osd);
1059              if ( g_value_get_string(value) )  #endif
                 priv->cache_dir = g_value_dup_string (value);  
             break;  
         case PROP_TILE_CACHE_DIR_IS_FULL_PATH:  
             priv->cache_dir_is_full_path = g_value_get_boolean (value);  
             break;  
         case PROP_ZOOM:  
             priv->map_zoom = g_value_get_int (value);  
             break;  
         case PROP_MAX_ZOOM:  
             priv->max_zoom = g_value_get_int (value);  
             break;  
         case PROP_MIN_ZOOM:  
             priv->min_zoom = g_value_get_int (value);  
             break;  
         case PROP_MAP_X:  
             priv->map_x = g_value_get_int (value);  
             priv->center_coord_set = FALSE;  
             break;  
         case PROP_MAP_Y:  
             priv->map_y = g_value_get_int (value);  
             priv->center_coord_set = FALSE;  
             break;  
         case PROP_GPS_TRACK_WIDTH:  
             priv->ui_gps_track_width = g_value_get_int (value);  
             break;  
         case PROP_GPS_POINT_R1:  
             priv->ui_gps_point_inner_radius = g_value_get_int (value);  
             break;  
         case PROP_GPS_POINT_R2:  
             priv->ui_gps_point_outer_radius = g_value_get_int (value);  
             break;  
         case PROP_MAP_SOURCE:  
             priv->map_source = g_value_get_int (value);  
             break;  
         case PROP_IMAGE_FORMAT:  
             priv->image_format = g_value_dup_string (value);  
             break;  
         default:  
             G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);  
             break;  
     }  
1060  }  }
1061    
1062  static void  static void
1063  osm_gps_map_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)  osd_draw(osm_gps_map_osd_t *osd, GdkDrawable *drawable)
1064  {  {
1065      g_return_if_fail (OSM_IS_GPS_MAP (object));      osd_priv_t *priv = (osd_priv_t*)osd->priv;
     float lat,lon;  
     OsmGpsMap *map = OSM_GPS_MAP(object);  
     OsmGpsMapPrivate *priv = map->priv;  
   
     switch (prop_id)  
     {  
         case PROP_AUTO_CENTER:  
             g_value_set_boolean(value, priv->map_auto_center);  
             break;  
         case PROP_RECORD_TRIP_HISTORY:  
             g_value_set_boolean(value, priv->record_trip_history);  
             break;  
         case PROP_SHOW_TRIP_HISTORY:  
             g_value_set_boolean(value, priv->show_trip_history);  
             break;  
         case PROP_AUTO_DOWNLOAD:  
             g_value_set_boolean(value, priv->map_auto_download);  
             break;  
         case PROP_REPO_URI:  
             g_value_set_string(value, priv->repo_uri);  
             break;  
         case PROP_PROXY_URI:  
             g_value_set_string(value, priv->proxy_uri);  
             break;  
         case PROP_TILE_CACHE_DIR:  
             g_value_set_string(value, priv->cache_dir);  
             break;  
         case PROP_TILE_CACHE_DIR_IS_FULL_PATH:  
             g_value_set_boolean(value, priv->cache_dir_is_full_path);  
             break;  
         case PROP_ZOOM:  
             g_value_set_int(value, priv->map_zoom);  
             break;  
         case PROP_MAX_ZOOM:  
             g_value_set_int(value, priv->max_zoom);  
             break;  
         case PROP_MIN_ZOOM:  
             g_value_set_int(value, priv->min_zoom);  
             break;  
         case PROP_LATITUDE:  
             lat = pixel2lat(priv->map_zoom,  
                             priv->map_y + (GTK_WIDGET(map)->allocation.height / 2));  
             g_value_set_float(value, rad2deg(lat));  
             break;  
         case PROP_LONGITUDE:  
             lon = pixel2lon(priv->map_zoom,  
                             priv->map_x + (GTK_WIDGET(map)->allocation.width / 2));  
             g_value_set_float(value, rad2deg(lon));  
             break;  
         case PROP_MAP_X:  
             g_value_set_int(value, priv->map_x);  
             break;  
         case PROP_MAP_Y:  
             g_value_set_int(value, priv->map_y);  
             break;  
         case PROP_TILES_QUEUED:  
             g_value_set_int(value, g_hash_table_size(priv->tile_queue));  
             break;  
         case PROP_GPS_TRACK_WIDTH:  
             g_value_set_int(value, priv->ui_gps_track_width);  
             break;  
         case PROP_GPS_POINT_R1:  
             g_value_set_int(value, priv->ui_gps_point_inner_radius);  
             break;  
         case PROP_GPS_POINT_R2:  
             g_value_set_int(value, priv->ui_gps_point_outer_radius);  
             break;  
         case PROP_MAP_SOURCE:  
             g_value_set_int(value, priv->map_source);  
             break;  
         case PROP_IMAGE_FORMAT:  
             g_value_set_string(value, priv->image_format);  
             break;  
         default:  
             G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);  
             break;  
     }  
 }  
   
 static gboolean  
 osm_gps_map_scroll_event (GtkWidget *widget, GdkEventScroll  *event)  
 {  
     OsmGpsMap *map = OSM_GPS_MAP(widget);  
     OsmGpsMapPrivate *priv = map->priv;  
   
     if (event->direction == GDK_SCROLL_UP)  
     {  
         osm_gps_map_set_zoom(map, priv->map_zoom+1);  
     }  
     else  
     {  
         osm_gps_map_set_zoom(map, priv->map_zoom-1);  
     }  
1066    
1067      return FALSE;      /* OSD itself uses some off-screen rendering, so check if the */
1068  }      /* offscreen buffer is present and create it if not */
1069        if(!priv->overlay) {
1070  static gboolean          /* create overlay ... */
1071  osm_gps_map_button_press (GtkWidget *widget, GdkEventButton *event)          priv->overlay =
1072  {              cairo_image_surface_create(CAIRO_FORMAT_ARGB32, OSD_W+2, OSD_H+2);
     OsmGpsMapPrivate *priv = OSM_GPS_MAP_PRIVATE(widget);  
1073    
1074  #ifdef ENABLE_BALLOON  #ifdef OSD_SOURCE_SEL
1075      /* don't drag if the user clicked within the balloon */          /* the initial OSD state is alway not-expanded */
1076      if (osm_gps_map_in_balloon(priv,          priv->map_source =
1077                     event->x + EXTRA_BORDER,              cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
1078                     event->y + EXTRA_BORDER))                                             OSD_S_W+2, OSD_S_H+2);
     {  
         priv->drag_counter = -1;  
         return FALSE;  
     }  
1079  #endif  #endif
1080    
1081  #ifdef ENABLE_OSD  #ifdef OSD_SCALE
1082      #define SCROLL_STEP 10          priv->scale =
1083                cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
1084      /* pressed inside OSD control? */                                         OSD_SCALE_W, OSD_SCALE_H);
1085      osd_button_t but = osm_gps_map_osd_check(event->x, event->y);          priv->scale_zoom = -1;
     if(but != OSD_NONE)  
     {  
         priv->drag_counter = -1;  
   
         switch(but) {  
         case OSD_GPS:  
             priv->osd.cb(priv->osd.data);  
             break;  
   
         case OSD_UP:  
             priv->map_y -= GTK_WIDGET(widget)->allocation.height/SCROLL_STEP;  
             priv->center_coord_set = FALSE;  
             break;  
   
         case OSD_DOWN:  
             priv->map_y += GTK_WIDGET(widget)->allocation.height/SCROLL_STEP;  
             priv->center_coord_set = FALSE;  
             break;  
   
         case OSD_LEFT:  
             priv->map_x -= GTK_WIDGET(widget)->allocation.width/SCROLL_STEP;  
             priv->center_coord_set = FALSE;  
             break;  
   
         case OSD_RIGHT:  
             priv->map_x += GTK_WIDGET(widget)->allocation.width/SCROLL_STEP;  
             priv->center_coord_set = FALSE;  
             break;  
   
         case OSD_IN:  
             osm_gps_map_set_zoom(OSM_GPS_MAP(widget), priv->map_zoom+1);  
             break;  
   
         case OSD_OUT:  
             osm_gps_map_set_zoom(OSM_GPS_MAP(widget), priv->map_zoom-1);  
             break;  
   
         default:  
             break;  
         }  
   
         osm_gps_map_map_redraw_idle(OSM_GPS_MAP(widget));  
   
         return FALSE;  
     }  
1086  #endif  #endif
1087    
1088      priv->drag_counter = 0;  #ifdef OSD_CROSSHAIR
1089      priv->drag_start_mouse_x = (int) event->x;          priv->crosshair =
1090      priv->drag_start_mouse_y = (int) event->y;              cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
1091      priv->drag_start_map_x = priv->map_x;                                         OSD_CROSSHAIR_W, OSD_CROSSHAIR_H);
     priv->drag_start_map_y = priv->map_y;  
   
     return FALSE;  
 }  
   
 static gboolean  
 osm_gps_map_button_release (GtkWidget *widget, GdkEventButton *event)  
 {  
     OsmGpsMapPrivate *priv = OSM_GPS_MAP_PRIVATE(widget);  
   
 #ifdef ENABLE_BALLOON  
     /* released inside the balloon? */  
     if (osm_gps_map_in_balloon(priv,  
                    event->x + EXTRA_BORDER,  
                    event->y + EXTRA_BORDER))  
     {  
         osm_gps_map_handle_balloon_click(OSM_GPS_MAP(widget),  
              event->x - priv->balloon.rect.x + EXTRA_BORDER,  
              event->y - priv->balloon.rect.y + EXTRA_BORDER);  
     }  
1092  #endif  #endif
1093    
1094      if (priv->dragging)  #ifdef OSD_COORDINATES
1095      {          priv->coordinates =
1096          priv->dragging = FALSE;              cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
1097                                           OSD_COORDINATES_W, OSD_COORDINATES_H);
1098          priv->map_x = priv->drag_start_map_x;  #endif
         priv->map_y = priv->drag_start_map_y;  
   
         priv->map_x += (priv->drag_start_mouse_x - (int) event->x);  
         priv->map_y += (priv->drag_start_mouse_y - (int) event->y);  
   
         priv->center_coord_set = FALSE;  
1099    
1100          osm_gps_map_map_redraw_idle(OSM_GPS_MAP(widget));          /* ... and render it */
1101            osd_render(osd);
1102      }      }
1103    
1104      priv->drag_mouse_dx = 0;      // now draw this onto the original context
1105      priv->drag_mouse_dy = 0;      cairo_t *cr = gdk_cairo_create(drawable);
     priv->drag_counter = -1;  
   
     return FALSE;  
 }  
   
 static gboolean  
 osm_gps_map_expose (GtkWidget *widget, GdkEventExpose  *event);  
1106    
 static gboolean  
 osm_gps_map_motion_notify (GtkWidget *widget, GdkEventMotion  *event)  
 {  
1107      int x, y;      int x, y;
     GdkModifierType state;  
     OsmGpsMapPrivate *priv = OSM_GPS_MAP_PRIVATE(widget);  
   
     if (event->is_hint)  
         gdk_window_get_pointer (event->window, &x, &y, &state);  
     else  
     {  
         x = event->x;  
         y = event->y;  
         state = event->state;  
     }  
1108    
1109      // are we being dragged  #ifdef OSD_SCALE
1110      if (!(state & GDK_BUTTON1_MASK))      x =  OSD_X;
1111          return FALSE;      y = -OSD_Y;
1112        if(x < 0) x += osd->widget->allocation.width - OSD_SCALE_W;
1113        if(y < 0) y += osd->widget->allocation.height - OSD_SCALE_H;
1114    
1115      if (priv->drag_counter < 0)      cairo_set_source_surface(cr, priv->scale, x, y);
1116          return FALSE;      cairo_paint(cr);
   
     priv->drag_counter++;  
   
     // we havent dragged more than 6 pixels  
     if (priv->drag_counter < 6)  
         return FALSE;  
   
 #ifdef USE_MAEMO  
     /* reduce update frequency on maemo to keep screen update fluid */  
     static guint32 last_time = 0;  
   
     if(event->time - last_time < 100) return FALSE;  
     last_time = event->time;  
1117  #endif  #endif
1118    
1119      priv->dragging = TRUE;  #ifdef OSD_CROSSHAIR
1120        x = (osd->widget->allocation.width - OSD_CROSSHAIR_W)/2;
1121        y = (osd->widget->allocation.height - OSD_CROSSHAIR_H)/2;
1122    
1123      if (priv->map_auto_center)      cairo_set_source_surface(cr, priv->crosshair, x, y);
1124          g_object_set(G_OBJECT(widget), "auto-center", FALSE, NULL);      cairo_paint(cr);
   
     priv->drag_mouse_dx = x - priv->drag_start_mouse_x;  
     priv->drag_mouse_dy = y - priv->drag_start_mouse_y;  
   
 #ifdef ENABLE_OSD  
     /* undo OSD */  
     osm_gps_map_osd_restore (OSM_GPS_MAP(widget));  
   
     /* draw new OSD */  
     osm_gps_map_osd_draw_controls (OSM_GPS_MAP(widget),  
                                    -priv->drag_mouse_dx,  
                                    -priv->drag_mouse_dy);  
1125  #endif  #endif
1126    
1127      osm_gps_map_expose (widget, NULL);  #ifdef OSD_COORDINATES
1128        x = -OSD_X;
1129        y = -OSD_Y;
1130      return FALSE;      if(x < 0) x += osd->widget->allocation.width - OSD_COORDINATES_W;
1131  }      if(y < 0) y += osd->widget->allocation.height - OSD_COORDINATES_H;
   
 static gboolean  
 osm_gps_map_configure (GtkWidget *widget, GdkEventConfigure *event)  
 {  
     OsmGpsMapPrivate *priv = OSM_GPS_MAP_PRIVATE(widget);  
1132    
1133      /* create pixmap */      cairo_set_source_surface(cr, priv->coordinates, x, y);
1134      if (priv->pixmap)      cairo_paint(cr);
         g_object_unref (priv->pixmap);  
   
     priv->pixmap = gdk_pixmap_new (  
                                    widget->window,  
                                    widget->allocation.width + EXTRA_BORDER * 2,  
                                    widget->allocation.height + EXTRA_BORDER * 2,  
                                    -1);  
   
     /* and gc, used for clipping (I think......) */  
     if(priv->gc_map)  
         g_object_unref(priv->gc_map);  
   
     priv->gc_map = gdk_gc_new(priv->pixmap);  
   
     osm_gps_map_map_redraw(OSM_GPS_MAP(widget));  
   
     return FALSE;  
 }  
   
 static gboolean  
 osm_gps_map_expose (GtkWidget *widget, GdkEventExpose  *event)  
 {  
     OsmGpsMapPrivate *priv = OSM_GPS_MAP_PRIVATE(widget);  
   
     gdk_draw_drawable (  
                        widget->window,  
                        widget->style->fg_gc[GTK_WIDGET_STATE (widget)],  
                        priv->pixmap,  
                        0,0,  
                        priv->drag_mouse_dx - EXTRA_BORDER,  
                        priv->drag_mouse_dy - EXTRA_BORDER,  
                        -1,-1);  
   
     //Paint white outside of the map if dragging. Its less  
     //ugly than painting the corrupted map  
     if(priv->drag_mouse_dx>EXTRA_BORDER) {  
         gdk_draw_rectangle (  
                             widget->window,  
                             widget->style->white_gc,  
                             TRUE,  
                             0, 0,  
                             priv->drag_mouse_dx - EXTRA_BORDER,  
                             widget->allocation.height);  
     }  
     else if (-priv->drag_mouse_dx > EXTRA_BORDER)  
     {  
         gdk_draw_rectangle (  
                             widget->window,  
                             widget->style->white_gc,  
                             TRUE,  
                             priv->drag_mouse_dx + widget->allocation.width + EXTRA_BORDER, 0,  
                             -priv->drag_mouse_dx - EXTRA_BORDER,  
                             widget->allocation.height);  
     }  
   
     if (priv->drag_mouse_dy>EXTRA_BORDER) {  
         gdk_draw_rectangle (  
                             widget->window,  
                             widget->style->white_gc,  
                             TRUE,  
                             0, 0,  
                             widget->allocation.width,  
                             priv->drag_mouse_dy - EXTRA_BORDER);  
     }  
     else if (-priv->drag_mouse_dy > EXTRA_BORDER)  
     {  
         gdk_draw_rectangle (  
                             widget->window,  
                             widget->style->white_gc,  
                             TRUE,  
                             0, priv->drag_mouse_dy + widget->allocation.height + EXTRA_BORDER,  
                             widget->allocation.width,  
                             -priv->drag_mouse_dy - EXTRA_BORDER);  
     }  
 #if 0  
     if(!priv->dragging)  
         gdk_draw_drawable (  
                        widget->window,  
                        widget->style->fg_gc[GTK_WIDGET_STATE (widget)],  
                        priv->pixmap,  
                        event->area.x + EXTRA_BORDER,  
                        event->area.y + EXTRA_BORDER,  
                        event->area.x, event->area.y,  
                        event->area.width, event->area.height);  
1135  #endif  #endif
     return FALSE;  
 }  
1136    
1137  static void      x = OSD_X;
1138  osm_gps_map_class_init (OsmGpsMapClass *klass)      if(x < 0)
1139  {          x += osd->widget->allocation.width - OSD_W;
1140      GObjectClass* object_class = G_OBJECT_CLASS (klass);  
1141      GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);      y = OSD_Y;
1142        if(y < 0)
1143      g_type_class_add_private (klass, sizeof (OsmGpsMapPrivate));          y += osd->widget->allocation.height - OSD_H;
1144    
1145      object_class->dispose = osm_gps_map_dispose;      cairo_set_source_surface(cr, priv->overlay, x, y);
1146      object_class->finalize = osm_gps_map_finalize;      cairo_paint(cr);
     object_class->constructor = osm_gps_map_constructor;  
     object_class->set_property = osm_gps_map_set_property;  
     object_class->get_property = osm_gps_map_get_property;  
   
     widget_class->expose_event = osm_gps_map_expose;  
     widget_class->configure_event = osm_gps_map_configure;  
     widget_class->button_press_event = osm_gps_map_button_press;  
     widget_class->button_release_event = osm_gps_map_button_release;  
     widget_class->motion_notify_event = osm_gps_map_motion_notify;  
     widget_class->scroll_event = osm_gps_map_scroll_event;  
   
     g_object_class_install_property (object_class,  
                                      PROP_AUTO_CENTER,  
                                      g_param_spec_boolean ("auto-center",  
                                                            "auto center",  
                                                            "map auto center",  
                                                            TRUE,  
                                                            G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));  
   
     g_object_class_install_property (object_class,  
                                      PROP_RECORD_TRIP_HISTORY,  
                                      g_param_spec_boolean ("record-trip-history",  
                                                            "record trip history",  
                                                            "should all gps points be recorded in a trip history",  
                                                            TRUE,  
                                                            G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));  
   
     g_object_class_install_property (object_class,  
                                      PROP_SHOW_TRIP_HISTORY,  
                                      g_param_spec_boolean ("show-trip-history",  
                                                            "show trip history",  
                                                            "should the recorded trip history be shown on the map",  
                                                            TRUE,  
                                                            G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));  
   
     g_object_class_install_property (object_class,  
                                      PROP_AUTO_DOWNLOAD,  
                                      g_param_spec_boolean ("auto-download",  
                                                            "auto download",  
                                                            "map auto download",  
                                                            TRUE,  
                                                            G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));  
   
     g_object_class_install_property (object_class,  
                                      PROP_REPO_URI,  
                                      g_param_spec_string ("repo-uri",  
                                                           "repo uri",  
                                                           "map source tile repository uri",  
                                                           OSM_REPO_URI,  
                                                           G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));  
   
      g_object_class_install_property (object_class,  
                                      PROP_PROXY_URI,  
                                      g_param_spec_string ("proxy-uri",  
                                                           "proxy uri",  
                                                           "http proxy uri on NULL",  
                                                           NULL,  
                                                           G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));  
   
     g_object_class_install_property (object_class,  
                                      PROP_TILE_CACHE_DIR,  
                                      g_param_spec_string ("tile-cache",  
                                                           "tile cache",  
                                                           "osm local tile cache dir",  
                                                           NULL,  
                                                           G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));  
   
     g_object_class_install_property (object_class,  
                                      PROP_TILE_CACHE_DIR_IS_FULL_PATH,  
                                      g_param_spec_boolean ("tile-cache-is-full-path",  
                                                            "tile cache is full path",  
                                                            "if true, the path passed to tile-cache is interpreted as the full cache path",  
                                                            FALSE,  
                                                            G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));  
   
     g_object_class_install_property (object_class,  
                                      PROP_ZOOM,  
                                      g_param_spec_int ("zoom",  
                                                        "zoom",  
                                                        "zoom level",  
                                                        MIN_ZOOM, /* minimum property value */  
                                                        MAX_ZOOM, /* maximum property value */  
                                                        3,  
                                                        G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));  
   
     g_object_class_install_property (object_class,  
                                      PROP_MAX_ZOOM,  
                                      g_param_spec_int ("max-zoom",  
                                                        "max zoom",  
                                                        "maximum zoom level",  
                                                        MIN_ZOOM, /* minimum property value */  
                                                        MAX_ZOOM, /* maximum property value */  
                                                        OSM_MAX_ZOOM,  
                                                        G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));  
   
     g_object_class_install_property (object_class,  
                                      PROP_MIN_ZOOM,  
                                      g_param_spec_int ("min-zoom",  
                                                        "min zoom",  
                                                        "minimum zoom level",  
                                                        MIN_ZOOM, /* minimum property value */  
                                                        MAX_ZOOM, /* maximum property value */  
                                                        OSM_MIN_ZOOM,  
                                                        G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));  
   
     g_object_class_install_property (object_class,  
                                      PROP_LATITUDE,  
                                      g_param_spec_float ("latitude",  
                                                          "latitude",  
                                                          "latitude in degrees",  
                                                          -90.0, /* minimum property value */  
                                                          90.0, /* maximum property value */  
                                                          0,  
                                                          G_PARAM_READABLE));  
   
     g_object_class_install_property (object_class,  
                                      PROP_LONGITUDE,  
                                      g_param_spec_float ("longitude",  
                                                          "longitude",  
                                                          "longitude in degrees",  
                                                          -180.0, /* minimum property value */  
                                                          180.0, /* maximum property value */  
                                                          0,  
                                                          G_PARAM_READABLE));  
   
     g_object_class_install_property (object_class,  
                                      PROP_MAP_X,  
                                      g_param_spec_int ("map-x",  
                                                        "map-x",  
                                                        "initial map x location",  
                                                        G_MININT, /* minimum property value */  
                                                        G_MAXINT, /* maximum property value */  
                                                        890,  
                                                        G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));  
   
     g_object_class_install_property (object_class,  
                                      PROP_MAP_Y,  
                                      g_param_spec_int ("map-y",  
                                                        "map-y",  
                                                        "initial map y location",  
                                                        G_MININT, /* minimum property value */  
                                                        G_MAXINT, /* maximum property value */  
                                                        515,  
                                                        G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));  
   
     g_object_class_install_property (object_class,  
                                      PROP_TILES_QUEUED,  
                                      g_param_spec_int ("tiles-queued",  
                                                        "tiles-queued",  
                                                        "number of tiles currently waiting to download",  
                                                        G_MININT, /* minimum property value */  
                                                        G_MAXINT, /* maximum property value */  
                                                        0,  
                                                        G_PARAM_READABLE));  
   
     g_object_class_install_property (object_class,  
                                      PROP_GPS_TRACK_WIDTH,  
                                      g_param_spec_int ("gps-track-width",  
                                                        "gps-track-width",  
                                                        "width of the lines drawn for the gps track",  
                                                        1,           /* minimum property value */  
                                                        G_MAXINT,    /* maximum property value */  
                                                        4,  
                                                        G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));  
   
     g_object_class_install_property (object_class,  
                                      PROP_GPS_POINT_R1,  
                                      g_param_spec_int ("gps-track-point-radius",  
                                                        "gps-track-point-radius",  
                                                        "radius of the gps point inner circle",  
                                                        0,           /* minimum property value */  
                                                        G_MAXINT,    /* maximum property value */  
                                                        10,  
                                                        G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));  
   
     g_object_class_install_property (object_class,  
                                      PROP_GPS_POINT_R2,  
                                      g_param_spec_int ("gps-track-highlight-radius",  
                                                        "gps-track-highlight-radius",  
                                                        "radius of the gps point highlight circle",  
                                                        0,           /* minimum property value */  
                                                        G_MAXINT,    /* maximum property value */  
                                                        20,  
                                                        G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT));  
   
     g_object_class_install_property (object_class,  
                                      PROP_MAP_SOURCE,  
                                      g_param_spec_int ("map-source",  
                                                        "map source",  
                                                        "map source ID",  
                                                        -1,           /* minimum property value */  
                                                        G_MAXINT,    /* maximum property value */  
                                                        -1,  
                                                        G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));  
   
     g_object_class_install_property (object_class,  
                                      PROP_IMAGE_FORMAT,  
                                      g_param_spec_string ("image-format",  
                                                           "image format",  
                                                           "map source tile repository image format (jpg, png)",  
                                                           OSM_IMAGE_FORMAT,  
                                                           G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));  
 }  
   
 const char*  
 osm_gps_map_source_get_friendly_name(OsmGpsMapSource_t source)  
 {  
     switch(source)  
     {  
         case OSM_GPS_MAP_SOURCE_NULL:  
             return "None";  
         case OSM_GPS_MAP_SOURCE_OPENSTREETMAP:  
             return "OpenStreetMap";  
         case OSM_GPS_MAP_SOURCE_OPENSTREETMAP_RENDERER:  
             return "OpenStreetMap Renderer";  
         case OSM_GPS_MAP_SOURCE_OPENAERIALMAP:  
             return "OpenAerialMap";  
         case OSM_GPS_MAP_SOURCE_MAPS_FOR_FREE:  
             return "Maps-For-Free";  
         case OSM_GPS_MAP_SOURCE_GOOGLE_STREET:  
             return "Google Maps";  
         case OSM_GPS_MAP_SOURCE_GOOGLE_SATELLITE:  
             return "Google Satellite";  
         case OSM_GPS_MAP_SOURCE_GOOGLE_HYBRID:  
             return "Google Hybrid";  
         case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_STREET:  
             return "Virtual Earth";  
         case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_SATELLITE:  
             return "Virtual Earth Satellite";  
         case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_HYBRID:  
             return "Virtual Earth Hybrid";  
         case OSM_GPS_MAP_SOURCE_YAHOO_STREET:  
             return "Yahoo Maps";  
         case OSM_GPS_MAP_SOURCE_YAHOO_SATELLITE:  
             return "Yahoo Satellite";  
         case OSM_GPS_MAP_SOURCE_YAHOO_HYBRID:  
             return "Yahoo Hybrid";  
         default:  
             return NULL;  
     }  
     return NULL;  
 }  
   
 //http://www.internettablettalk.com/forums/showthread.php?t=5209  
 //https://garage.maemo.org/plugins/scmsvn/viewcvs.php/trunk/src/maps.c?root=maemo-mapper&view=markup  
 //http://www.ponies.me.uk/maps/GoogleTileUtils.java  
 //http://www.mgmaps.com/cache/MapTileCacher.perl  
 const char*  
 osm_gps_map_source_get_repo_uri(OsmGpsMapSource_t source)  
 {  
     switch(source)  
     {  
         case OSM_GPS_MAP_SOURCE_NULL:  
             return "none://";  
         case OSM_GPS_MAP_SOURCE_OPENSTREETMAP:  
             return OSM_REPO_URI;  
         case OSM_GPS_MAP_SOURCE_OPENSTREETMAP_RENDERER:  
             return "http://tah.openstreetmap.org/Tiles/tile/#Z/#X/#Y.png";  
         case OSM_GPS_MAP_SOURCE_OPENAERIALMAP:  
             return "http://tile.openaerialmap.org/tiles/1.0.0/openaerialmap-900913/#Z/#X/#Y.jpg";  
         case OSM_GPS_MAP_SOURCE_MAPS_FOR_FREE:  
             return "http://maps-for-free.com/layer/relief/z#Z/row#Y/#Z_#X-#Y.jpg";  
         case OSM_GPS_MAP_SOURCE_GOOGLE_STREET:  
             return "http://mt#R.google.com/vt/v=w2.97&x=#X&y=#Y&z=#Z";  
         case OSM_GPS_MAP_SOURCE_GOOGLE_SATELLITE:  
             return "http://khm#R.google.com/kh?n=404&v=3&t=#Q";  
         case OSM_GPS_MAP_SOURCE_GOOGLE_HYBRID:  
             return NULL; /* No longer working  "http://mt#R.google.com/mt?n=404&v=w2t.99&x=#X&y=#Y&zoom=#S" */  
         case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_STREET:  
             return "http://a#R.ortho.tiles.virtualearth.net/tiles/r#W.jpeg?g=50";  
         case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_SATELLITE:  
             return "http://a#R.ortho.tiles.virtualearth.net/tiles/a#W.jpeg?g=50";  
         case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_HYBRID:  
             return "http://a#R.ortho.tiles.virtualearth.net/tiles/h#W.jpeg?g=50";  
         case OSM_GPS_MAP_SOURCE_YAHOO_STREET:  
         case OSM_GPS_MAP_SOURCE_YAHOO_SATELLITE:  
         case OSM_GPS_MAP_SOURCE_YAHOO_HYBRID:  
             /* TODO: Implement signed Y, aka U  
              * http://us.maps3.yimg.com/aerial.maps.yimg.com/ximg?v=1.7&t=a&s=256&x=%d&y=%-d&z=%d  
              *  x = tilex,  
              *  y = (1 << (MAX_ZOOM - zoom)) - tiley - 1,  
              *  z = zoom - (MAX_ZOOM - 17));  
              */  
             return NULL;  
         default:  
             return NULL;  
     }  
     return NULL;  
 }  
   
 const char *  
 osm_gps_map_source_get_image_format(OsmGpsMapSource_t source)  
 {  
     switch(source) {  
         case OSM_GPS_MAP_SOURCE_NULL:  
         case OSM_GPS_MAP_SOURCE_OPENSTREETMAP:  
         case OSM_GPS_MAP_SOURCE_OPENSTREETMAP_RENDERER:  
             return "png";  
         case OSM_GPS_MAP_SOURCE_OPENAERIALMAP:  
         case OSM_GPS_MAP_SOURCE_GOOGLE_STREET:  
         case OSM_GPS_MAP_SOURCE_GOOGLE_HYBRID:  
         case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_STREET:  
         case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_SATELLITE:  
         case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_HYBRID:  
         case OSM_GPS_MAP_SOURCE_YAHOO_STREET:  
         case OSM_GPS_MAP_SOURCE_YAHOO_SATELLITE:  
         case OSM_GPS_MAP_SOURCE_YAHOO_HYBRID:  
         case OSM_GPS_MAP_SOURCE_MAPS_FOR_FREE:  
         case OSM_GPS_MAP_SOURCE_GOOGLE_SATELLITE:  
             return "jpg";  
         default:  
             return "bin";  
     }  
     return "bin";  
 }  
   
   
 int  
 osm_gps_map_source_get_min_zoom(OsmGpsMapSource_t source)  
 {  
     return 1;  
 }  
   
 int  
 osm_gps_map_source_get_max_zoom(OsmGpsMapSource_t source)  
 {  
     switch(source) {  
         case OSM_GPS_MAP_SOURCE_NULL:  
             return 18;  
         case OSM_GPS_MAP_SOURCE_OPENSTREETMAP:  
             return OSM_MAX_ZOOM;  
         case OSM_GPS_MAP_SOURCE_OPENSTREETMAP_RENDERER:  
         case OSM_GPS_MAP_SOURCE_OPENAERIALMAP:  
         case OSM_GPS_MAP_SOURCE_GOOGLE_STREET:  
         case OSM_GPS_MAP_SOURCE_GOOGLE_HYBRID:  
         case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_STREET:  
         case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_SATELLITE:  
         case OSM_GPS_MAP_SOURCE_VIRTUAL_EARTH_HYBRID:  
         case OSM_GPS_MAP_SOURCE_YAHOO_STREET:  
         case OSM_GPS_MAP_SOURCE_YAHOO_SATELLITE:  
         case OSM_GPS_MAP_SOURCE_YAHOO_HYBRID:  
             return 17;  
         case OSM_GPS_MAP_SOURCE_MAPS_FOR_FREE:  
             return 11;  
         case OSM_GPS_MAP_SOURCE_GOOGLE_SATELLITE:  
             return 18;  
         default:  
             return 17;  
     }  
     return 17;  
 }  
   
 void  
 osm_gps_map_download_maps (OsmGpsMap *map, coord_t *pt1, coord_t *pt2, int zoom_start, int zoom_end)  
 {  
     int i,j,zoom,num_tiles;  
     OsmGpsMapPrivate *priv = map->priv;  
   
     if (pt1 && pt2)  
     {  
         gchar *filename;  
         num_tiles = 0;  
         zoom_end = CLAMP(zoom_end, priv->min_zoom, priv->max_zoom);  
         g_debug("Download maps: z:%d->%d",zoom_start, zoom_end);  
   
         for(zoom=zoom_start; zoom<=zoom_end; zoom++)  
         {  
             int x1,y1,x2,y2;  
   
             x1 = (int)floor((float)lon2pixel(zoom, pt1->rlon) / (float)TILESIZE);  
             y1 = (int)floor((float)lat2pixel(zoom, pt1->rlat) / (float)TILESIZE);  
   
             x2 = (int)floor((float)lon2pixel(zoom, pt2->rlon) / (float)TILESIZE);  
             y2 = (int)floor((float)lat2pixel(zoom, pt2->rlat) / (float)TILESIZE);  
   
             // loop x1-x2  
             for(i=x1; i<=x2; i++)  
             {  
                 // loop y1 - y2  
                 for(j=y1; j<=y2; j++)  
                 {  
                     // x = i, y = j  
                     filename = g_strdup_printf("%s%c%d%c%d%c%d.%s",  
                                     priv->cache_dir, G_DIR_SEPARATOR,  
                                     zoom, G_DIR_SEPARATOR,  
                                     i, G_DIR_SEPARATOR,  
                                     j,  
                                     priv->image_format);  
                     if (!g_file_test(filename, G_FILE_TEST_EXISTS))  
                     {  
                         osm_gps_map_download_tile(map, zoom, i, j, FALSE);  
                         num_tiles++;  
                     }  
                     g_free(filename);  
                 }  
             }  
             g_debug("DL @Z:%d = %d tiles",zoom,num_tiles);  
         }  
     }  
 }  
   
 void  
 osm_gps_map_get_bbox (OsmGpsMap *map, coord_t *pt1, coord_t *pt2)  
 {  
     OsmGpsMapPrivate *priv = map->priv;  
   
     if (pt1 && pt2) {  
         pt1->rlat = pixel2lat(priv->map_zoom, priv->map_y);  
         pt1->rlon = pixel2lon(priv->map_zoom, priv->map_x);  
         pt2->rlat = pixel2lat(priv->map_zoom, priv->map_y + GTK_WIDGET(map)->allocation.height);  
         pt2->rlon = pixel2lon(priv->map_zoom, priv->map_x + GTK_WIDGET(map)->allocation.width);  
   
         g_debug("BBOX: %f %f %f %f", pt1->rlat, pt1->rlon, pt2->rlat, pt2->rlon);  
     }  
 }  
   
 void  
 osm_gps_map_set_mapcenter (OsmGpsMap *map, float latitude, float longitude, int zoom)  
 {  
     osm_gps_map_set_center (map, latitude, longitude);  
     osm_gps_map_set_zoom (map, zoom);  
 }  
   
 void  
 osm_gps_map_set_center (OsmGpsMap *map, float latitude, float longitude)  
 {  
     int pixel_x, pixel_y;  
     OsmGpsMapPrivate *priv;  
   
     g_return_if_fail (OSM_IS_GPS_MAP (map));  
     priv = map->priv;  
   
     priv->center_rlat = deg2rad(latitude);  
     priv->center_rlon = deg2rad(longitude);  
     priv->center_coord_set = TRUE;  
   
     // pixel_x,y, offsets  
     pixel_x = lon2pixel(priv->map_zoom, priv->center_rlon);  
     pixel_y = lat2pixel(priv->map_zoom, priv->center_rlat);  
   
     priv->map_x = pixel_x - GTK_WIDGET(map)->allocation.width/2;  
     priv->map_y = pixel_y - GTK_WIDGET(map)->allocation.height/2;  
   
     osm_gps_map_map_redraw_idle(map);  
 }  
   
 int  
 osm_gps_map_set_zoom (OsmGpsMap *map, int zoom)  
 {  
     int zoom_old;  
     double factor = 0.0;  
     int width_center, height_center;  
     OsmGpsMapPrivate *priv;  
   
     g_return_val_if_fail (OSM_IS_GPS_MAP (map), 0);  
     priv = map->priv;  
   
     if (zoom != priv->map_zoom)  
     {  
         width_center  = GTK_WIDGET(map)->allocation.width / 2;  
         height_center = GTK_WIDGET(map)->allocation.height / 2;  
1147    
1148          zoom_old = priv->map_zoom;  #ifdef OSD_SOURCE_SEL
1149          //constrain zoom min_zoom -> max_zoom      if(!priv->handler_id) {
1150          priv->map_zoom = CLAMP(zoom, priv->min_zoom, priv->max_zoom);          /* the OSD source selection is not being animated */
1151            if(!priv->expanded)
1152          if (priv->center_coord_set)              x = osd->widget->allocation.width - OSD_S_W;
         {  
             priv->map_x = lon2pixel(priv->map_zoom, priv->center_rlon) - width_center;  
             priv->map_y = lat2pixel(priv->map_zoom, priv->center_rlat) - height_center;  
         }  
1153          else          else
1154          {              x = osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X;
1155              factor = exp(priv->map_zoom * M_LN2)/exp(zoom_old * M_LN2);      } else
1156              priv->map_x = ((priv->map_x + width_center) * factor) - width_center;          x = priv->shift;
1157              priv->map_y = ((priv->map_y + height_center) * factor) - height_center;  
1158          }      y = OSD_S_Y;
1159        if(OSD_S_Y < 0) {
1160          g_debug("Zoom changed from %d to %d factor:%f x:%d",          if(!priv->expanded)
1161                  zoom_old, priv->map_zoom, factor, priv->map_x);              y = osd->widget->allocation.height - OSD_S_H + OSD_S_Y;
1162            else
1163          osm_gps_map_map_redraw_idle(map);              y = osd->widget->allocation.height - OSD_S_EXP_H + OSD_S_Y;
1164      }      }
     return priv->map_zoom;  
 }  
   
 void  
 osm_gps_map_add_track (OsmGpsMap *map, GSList *track)  
 {  
     OsmGpsMapPrivate *priv;  
1165    
1166      g_return_if_fail (OSM_IS_GPS_MAP (map));      cairo_set_source_surface(cr, priv->map_source, x, y);
1167      priv = map->priv;      cairo_paint(cr);
1168    #endif
1169    
1170      if (track) {      cairo_destroy(cr);
         priv->tracks = g_slist_append(priv->tracks, track);  
         osm_gps_map_map_redraw_idle(map);  
     }  
1171  }  }
1172    
1173  void  static void
1174  osm_gps_map_clear_tracks (OsmGpsMap *map)  osd_free(osm_gps_map_osd_t *osd)
1175  {  {
1176      g_return_if_fail (OSM_IS_GPS_MAP (map));      osd_priv_t *priv = (osd_priv_t *)(osd->priv);
1177    
1178      osm_gps_map_free_tracks(map);      if (priv->overlay)
1179      osm_gps_map_map_redraw_idle(map);           cairo_surface_destroy(priv->overlay);
 }  
1180    
1181  void  #ifdef OSD_SOURCE_SEL
1182  osm_gps_map_add_image (OsmGpsMap *map, float latitude, float longitude, GdkPixbuf *image)      if(priv->handler_id)
1183  {          gtk_timeout_remove(priv->handler_id);
     g_return_if_fail (OSM_IS_GPS_MAP (map));  
1184    
1185      if (image) {      if (priv->map_source)
1186          OsmGpsMapPrivate *priv = map->priv;           cairo_surface_destroy(priv->map_source);
1187          image_t *im;  #endif
1188    
1189          //cache w/h for speed, and add image to list  #ifdef OSD_SCALE
1190          im = g_new0(image_t,1);      if (priv->scale)
1191          im->w = gdk_pixbuf_get_width(image);           cairo_surface_destroy(priv->scale);
1192          im->h = gdk_pixbuf_get_height(image);  #endif
         im->pt.rlat = deg2rad(latitude);  
         im->pt.rlon = deg2rad(longitude);  
1193    
1194          g_object_ref(image);  #ifdef OSD_CROSSHAIR
1195          im->image = image;      if (priv->crosshair)
1196             cairo_surface_destroy(priv->crosshair);
1197    #endif
1198    
1199          priv->images = g_slist_append(priv->images, im);  #ifdef OSD_COORDINATES
1200        if (priv->coordinates)
1201             cairo_surface_destroy(priv->coordinates);
1202    #endif
1203    
1204          osm_gps_map_map_redraw_idle(map);      g_free(priv);
     }  
1205  }  }
1206    
1207  gboolean  static gboolean
1208  osm_gps_map_remove_image (OsmGpsMap *map, GdkPixbuf *image)  osd_busy(osm_gps_map_osd_t *osd)
1209  {  {
1210      OsmGpsMapPrivate *priv = map->priv;  #ifdef OSD_SOURCE_SEL
1211      if (priv->images) {      osd_priv_t *priv = (osd_priv_t *)(osd->priv);
1212          GSList *list;      return (priv->handler_id != 0);
1213          for(list = priv->images; list != NULL; list = list->next)  #else
         {  
             image_t *im = list->data;  
                 if (im->image == image)  
                 {  
                         priv->images = g_slist_remove_link(priv->images, list);  
                         g_object_unref(im->image);  
                         g_free(im);  
                         osm_gps_map_map_redraw_idle(map);  
                         return TRUE;  
                 }  
         }  
     }  
1214      return FALSE;      return FALSE;
1215    #endif
1216  }  }
1217    
1218  void  static osm_gps_map_osd_t osd_classic = {
1219  osm_gps_map_clear_images (OsmGpsMap *map)      .widget     = NULL,
 {  
     g_return_if_fail (OSM_IS_GPS_MAP (map));  
   
     osm_gps_map_free_images(map);  
     osm_gps_map_map_redraw_idle(map);  
 }  
   
 void  
 osm_gps_map_osd_speed (OsmGpsMap *map, float speed)  
 {  
     OsmGpsMapPrivate *priv;  
   
     PangoContext        *context = NULL;  
     PangoLayout     *layout  = NULL;  
     PangoFontDescription    *desc    = NULL;  
   
     GdkColor color;  
     GdkGC *gc;  
   
     gchar *buffer;  
     //static int x = 10, y = 10;  
     static int width = 0, height = 0;  
   
     g_return_if_fail (OSM_IS_GPS_MAP (map));  
     priv = map->priv;  
   
     buffer = g_strdup_printf("%.0f", speed);  
   
     /* pango initialisation */  
     context = gtk_widget_get_pango_context (GTK_WIDGET(map));  
     layout  = pango_layout_new (context);  
     desc    = pango_font_description_new();  
   
     pango_font_description_set_size (desc, 40 * PANGO_SCALE);  
     pango_layout_set_font_description (layout, desc);  
     pango_layout_set_text (layout, buffer, strlen(buffer));  
   
     gc = gdk_gc_new (GTK_WIDGET(map)->window);  
   
     color.red = (0 > 50) ? 0xffff : 0;  
     color.green = 0;  
     color.blue = 0;  
   
     gdk_gc_set_rgb_fg_color (gc, &color);  
   
     /* faster / less flicker alternative:*/  
     gdk_draw_drawable (  
                        GTK_WIDGET(map)->window,  
                        GTK_WIDGET(map)->style->fg_gc[GTK_WIDGET_STATE(map)],  
                        priv->pixmap,  
                        0,0,  
                        0,0,  
                        width+10,width+10);  
   
     gdk_draw_layout(GTK_WIDGET(map)->window,  
                     gc,  
                     0, 0,  
                     layout);  
   
     /* set width and height */  
     pango_layout_get_pixel_size(layout, &width, &height);  
   
     g_free(buffer);  
     pango_font_description_free (desc);  
     g_object_unref (layout);  
     g_object_unref (gc);  
 }  
   
 void  
 osm_gps_map_draw_gps (OsmGpsMap *map, float latitude, float longitude, float heading)  
 {  
     int pixel_x, pixel_y;  
     OsmGpsMapPrivate *priv;  
   
     g_return_if_fail (OSM_IS_GPS_MAP (map));  
     priv = map->priv;  
   
     priv->gps->rlat = deg2rad(latitude);  
     priv->gps->rlon = deg2rad(longitude);  
     priv->gps_valid = TRUE;  
   
     // pixel_x,y, offsets  
     pixel_x = lon2pixel(priv->map_zoom, priv->gps->rlon);  
     pixel_y = lat2pixel(priv->map_zoom, priv->gps->rlat);  
   
     //If trip marker add to list of gps points.  
     if (priv->record_trip_history) {  
         coord_t *tp = g_new0(coord_t,1);  
         tp->rlat = priv->gps->rlat;  
         tp->rlon = priv->gps->rlon;  
         priv->trip_history = g_slist_append(priv->trip_history, tp);  
     }  
   
     // dont draw anything if we are dragging  
     if (priv->dragging) {  
         g_debug("Dragging");  
         return;  
     }  
   
     //Automatically center the map if the track approaches the edge  
     if(priv->map_auto_center)   {  
         int x = pixel_x - priv->map_x;  
         int y = pixel_y - priv->map_y;  
         int width = GTK_WIDGET(map)->allocation.width;  
         int height = GTK_WIDGET(map)->allocation.height;  
         if( x < (width/2 - width/8)     || x > (width/2 + width/8)  ||  
             y < (height/2 - height/8)   || y > (height/2 + height/8)) {  
   
             priv->map_x = pixel_x - GTK_WIDGET(map)->allocation.width/2;  
             priv->map_y = pixel_y - GTK_WIDGET(map)->allocation.height/2;  
             priv->center_coord_set = FALSE;  
         }  
     }  
   
     // this redraws the map (including the gps track, and adjusts the  
     // map center if it was changed  
     osm_gps_map_map_redraw_idle(map);  
 }  
   
 void  
 osm_gps_map_clear_gps (OsmGpsMap *map)  
 {  
     osm_gps_map_free_trip(map);  
     osm_gps_map_map_redraw_idle(map);  
 }  
   
 coord_t  
 osm_gps_map_get_co_ordinates (OsmGpsMap *map, int pixel_x, int pixel_y)  
 {  
     coord_t coord;  
     OsmGpsMapPrivate *priv = map->priv;  
1220    
1221      coord.rlat = pixel2lat(priv->map_zoom, priv->map_y + pixel_y);      .draw       = osd_draw,
1222      coord.rlon = pixel2lon(priv->map_zoom, priv->map_x + pixel_x);      .check      = osd_check,
1223      return coord;      .render     = osd_render,
1224  }      .free       = osd_free,
1225        .busy       = osd_busy,
1226    
1227  GtkWidget *      .cb         = NULL,
1228  osm_gps_map_new (void)      .data       = NULL,
 {  
     return g_object_new (OSM_TYPE_GPS_MAP, NULL);  
 }  
1229    
1230  void      .priv       = NULL
1231  osm_gps_map_screen_to_geographic (OsmGpsMap *map, gint pixel_x, gint pixel_y,  };
                                   gfloat *latitude, gfloat *longitude)  
 {  
     OsmGpsMapPrivate *priv;  
   
     g_return_if_fail (OSM_IS_GPS_MAP (map));  
     priv = map->priv;  
   
     if (latitude)  
         *latitude = rad2deg(pixel2lat(priv->map_zoom, priv->map_y + pixel_y));  
     if (longitude)  
         *longitude = rad2deg(pixel2lon(priv->map_zoom, priv->map_x + pixel_x));  
 }  
1232    
1233    /* this is the only function that's externally visible */
1234  void  void
1235  osm_gps_map_geographic_to_screen (OsmGpsMap *map,  osm_gps_map_osd_classic_init(OsmGpsMap *map)
                                   gfloat latitude, gfloat longitude,  
                                   gint *pixel_x, gint *pixel_y)  
 {  
     OsmGpsMapPrivate *priv;  
   
     g_return_if_fail (OSM_IS_GPS_MAP (map));  
     priv = map->priv;  
   
     if (pixel_x)  
         *pixel_x = lon2pixel(priv->map_zoom, deg2rad(longitude)) - priv->map_x;  
     if (pixel_y)  
         *pixel_y = lat2pixel(priv->map_zoom, deg2rad(latitude)) - priv->map_y;  
 }  
   
 void  
 osm_gps_map_scroll (OsmGpsMap *map, gint dx, gint dy)  
 {  
     OsmGpsMapPrivate *priv;  
   
     g_return_if_fail (OSM_IS_GPS_MAP (map));  
     priv = map->priv;  
   
     priv->center_coord_set = FALSE;  
     priv->map_x += dx;  
     priv->map_y += dy;  
   
     osm_gps_map_map_redraw_idle (map);  
 }  
   
 float  
 osm_gps_map_get_scale(OsmGpsMap *map)  
1236  {  {
1237      OsmGpsMapPrivate *priv;      osd_priv_t *priv = osd_classic.priv = g_new0(osd_priv_t, 1);
1238    
1239      g_return_val_if_fail (OSM_IS_GPS_MAP (map), OSM_NAN);      osd_classic.priv = priv;
     priv = map->priv;  
1240    
1241      return osm_gps_map_get_scale_at_point(priv->map_zoom, priv->center_rlat, priv->center_rlon);      osm_gps_map_register_osd(map, &osd_classic);
1242  }  }
1243    
1244  #ifdef ENABLE_BALLOON  #ifdef OSD_GPS_BUTTON
1245  void  /* below are osd specific functions which aren't used by osm-gps-map */
1246  osm_gps_map_draw_balloon (OsmGpsMap *map, float latitude, float longitude,  /* but instead are to be used by the main application */
1247                            OsmGpsMapBalloonCallback cb, gpointer data)  void osm_gps_map_osd_enable_gps (OsmGpsMap *map, OsmGpsMapOsdCallback cb,
1248  {                                   gpointer data) {
1249      OsmGpsMapPrivate *priv;      osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map);
1250        g_return_if_fail (osd);
     /* remove and previously installed balloon */  
     osm_gps_map_clear_balloon (map);  
   
     g_return_if_fail (OSM_IS_GPS_MAP (map));  
     priv = map->priv;  
   
     priv->balloon.coo->rlat = deg2rad(latitude);  
     priv->balloon.coo->rlon = deg2rad(longitude);  
     priv->balloon.valid = TRUE;  
   
     priv->balloon.cb = cb;  
     priv->balloon.data = data;  
   
     // this redraws the map  
     osm_gps_map_map_redraw_idle(map);  
 }  
   
 void  
 osm_gps_map_clear_balloon (OsmGpsMap *map)  
 {  
     OsmGpsMapPrivate *priv;  
1251    
1252      g_return_if_fail (OSM_IS_GPS_MAP (map));      osd->cb = cb;
1253      priv = map->priv;      osd->data = data;
   
     priv->balloon.valid = FALSE;  
   
     osm_gps_map_map_redraw_idle(map);  
 }  
 #endif  
   
 #ifdef ENABLE_OSD  
 void osm_gps_map_osd_enable_gps (OsmGpsMap *map, OsmGpsMapOsdGpsCallback cb, gpointer data) {  
     OsmGpsMapPrivate *priv;  
   
     g_return_if_fail (OSM_IS_GPS_MAP (map));  
     priv = map->priv;  
   
     priv->osd.cb = cb;  
     priv->osd.data = data;  
1254    
1255      /* this may have changed the state of the gps button */      /* this may have changed the state of the gps button */
1256      /* we thus re-render the overlay */      /* we thus re-render the overlay */
1257      osm_gps_map_osd_render(priv);      osd->render(osd);
1258    
1259      osm_gps_map_map_redraw_idle(map);      osm_gps_map_redraw(map);
1260  }  }
1261  #endif  #endif
1262    
1263    osd_button_t
1264    osm_gps_map_osd_check(OsmGpsMap *map, gint x, gint y) {
1265        osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map);
1266        g_return_val_if_fail (osd, OSD_NONE);
1267    
1268        return osd_check(osd, x, y);
1269    }
Legend:
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  Added in v.106