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

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revision 88 by harbaum, Mon Aug 31 14:22:28 2009 UTC revision 112 by harbaum, Tue Sep 15 13:52:04 2009 UTC
# Line 32  Line 32 
32  #include <cairo.h>  #include <cairo.h>
33    
34  #include "osm-gps-map.h"  #include "osm-gps-map.h"
35    #include "converter.h"
36  #include "osm-gps-map-osd-classic.h"  #include "osm-gps-map-osd-classic.h"
37    
38  //the osd controls  //the osd controls
39  typedef struct {  typedef struct {
40      /* the offscreen representation of the OSD */      /* the offscreen representation of the OSD */
41      cairo_surface_t *overlay;      struct {
42            cairo_surface_t *surface;
43            gboolean rendered;
44    #ifdef OSD_GPS_BUTTON
45            gboolean gps_enabled;
46    #endif
47        } controls;
48    
49    #ifdef OSD_BALLOON
50        //a balloon with additional info
51        struct {
52            cairo_surface_t *surface;
53    
54            float lat, lon;
55            gboolean valid;
56            OsmGpsMapRect_t rect;
57    
58            /* function called to have the user app draw the contents */
59            OsmGpsMapBalloonCallback cb;
60            gpointer data;
61        } balloon;
62    #endif
63    
64    #ifdef OSD_SCALE
65        struct {
66            cairo_surface_t *surface;
67            int zoom;
68        } scale;
69    #endif
70    
71    #ifdef OSD_CROSSHAIR
72        struct {
73            cairo_surface_t *surface;
74            gboolean rendered;
75        } crosshair;
76    #endif
77    
78    #ifdef OSD_COORDINATES
79        struct {
80            cairo_surface_t *surface;
81            float lat, lon;
82        } coordinates;
83    #endif
84    
85  #ifdef OSD_SOURCE_SEL  #ifdef OSD_SOURCE_SEL
86      /* values to handle the "source" menu */      struct {
87      cairo_surface_t *map_source;          /* values to handle the "source" menu */
88      gboolean expanded;          cairo_surface_t *surface;
89      gint shift, dir, count;          gboolean expanded;
90      gint handler_id;          gint shift, dir, count;
91      gint width, height;          gint handler_id;
92            gint width, height;
93            gboolean rendered;
94        } source_sel;
95  #endif  #endif
96    
97  } osd_priv_t;  } osd_priv_t;
98    
99    #ifdef OSD_BALLOON
100    /* most visual effects are hardcoded by now, but may be made */
101    /* available via properties later */
102    #ifndef BALLOON_AREA_WIDTH
103    #define BALLOON_AREA_WIDTH           290
104    #endif
105    #ifndef BALLOON_AREA_HEIGHT
106    #define BALLOON_AREA_HEIGHT           75
107    #endif
108    #ifndef BALLOON_CORNER_RADIUS
109    #define BALLOON_CORNER_RADIUS         10
110    #endif
111    
112    #define BALLOON_BORDER               (BALLOON_CORNER_RADIUS/2)
113    #define BALLOON_WIDTH                (BALLOON_AREA_WIDTH + 2 * BALLOON_BORDER)
114    #define BALLOON_HEIGHT               (BALLOON_AREA_HEIGHT + 2 * BALLOON_BORDER)
115    #define BALLOON_TRANSPARENCY         0.8
116    #define POINTER_HEIGHT                20
117    #define POINTER_FOOT_WIDTH            20
118    #define POINTER_OFFSET               (BALLOON_CORNER_RADIUS*3/4)
119    #define BALLOON_SHADOW               (BALLOON_CORNER_RADIUS/2)
120    #define BALLOON_SHADOW_TRANSPARENCY  0.2
121    
122    #define CLOSE_BUTTON_RADIUS   (BALLOON_CORNER_RADIUS)
123    
124    
125    /* draw the bubble shape. this is used twice, once for the shape and once */
126    /* for the shadow */
127    static void
128    osm_gps_map_draw_balloon_shape (cairo_t *cr, int x0, int y0, int x1, int y1,
129           gboolean bottom, int px, int py, int px0, int px1) {
130    
131        cairo_move_to (cr, x0, y0 + BALLOON_CORNER_RADIUS);
132        cairo_arc (cr, x0 + BALLOON_CORNER_RADIUS, y0 + BALLOON_CORNER_RADIUS,
133                   BALLOON_CORNER_RADIUS, -M_PI, -M_PI/2);
134        if(!bottom) {
135            /* insert top pointer */
136            cairo_line_to (cr, px1, y0);
137            cairo_line_to (cr, px, py);
138            cairo_line_to (cr, px0, y0);
139        }
140    
141        cairo_line_to (cr, x1 - BALLOON_CORNER_RADIUS, y0);
142        cairo_arc (cr, x1 - BALLOON_CORNER_RADIUS, y0 + BALLOON_CORNER_RADIUS,
143                   BALLOON_CORNER_RADIUS, -M_PI/2, 0);
144        cairo_line_to (cr, x1 , y1 - BALLOON_CORNER_RADIUS);
145        cairo_arc (cr, x1 - BALLOON_CORNER_RADIUS, y1 - BALLOON_CORNER_RADIUS,
146                   BALLOON_CORNER_RADIUS, 0, M_PI/2);
147        if(bottom) {
148            /* insert bottom pointer */
149            cairo_line_to (cr, px0, y1);
150            cairo_line_to (cr, px, py);
151            cairo_line_to (cr, px1, y1);
152        }
153    
154        cairo_line_to (cr, x0 + BALLOON_CORNER_RADIUS, y1);
155        cairo_arc (cr, x0 + BALLOON_CORNER_RADIUS, y1 - BALLOON_CORNER_RADIUS,
156                   BALLOON_CORNER_RADIUS, M_PI/2, M_PI);
157    
158        cairo_close_path (cr);
159    }
160    
161    /* xyz */
162    
163    static void
164    osd_render_balloon(osm_gps_map_osd_t *osd) {
165        osd_priv_t *priv = (osd_priv_t*)osd->priv;
166    
167        /* get zoom */
168        gint zoom;
169        g_object_get(OSM_GPS_MAP(osd->widget), "zoom", &zoom, NULL);
170    
171        /* ------- convert given coordinate into screen position --------- */
172        gint x0, y0;
173        osm_gps_map_geographic_to_screen (OSM_GPS_MAP(osd->widget),
174                                          priv->balloon.lat, priv->balloon.lon,
175                                          &x0, &y0);
176    
177        /* check position of this relative to screen center to determine */
178        /* pointer direction ... */
179        int pointer_x = x0, pointer_x0, pointer_x1;
180        int pointer_y = y0;
181    
182        /* ... and calculate position */
183        if(x0 > osd->widget->allocation.width/2) {
184            x0 += POINTER_OFFSET;
185            pointer_x0 = pointer_x - (BALLOON_CORNER_RADIUS - POINTER_OFFSET);
186            pointer_x1 = pointer_x0 - POINTER_FOOT_WIDTH;
187        } else {
188            x0 -= POINTER_OFFSET;
189            pointer_x1 = pointer_x + (BALLOON_CORNER_RADIUS - POINTER_OFFSET);
190            pointer_x0 = pointer_x1 + POINTER_FOOT_WIDTH;
191        }
192    
193        gboolean bottom = FALSE;
194        if(y0 > osd->widget->allocation.height/2) {
195            bottom = TRUE;
196            y0 -= BALLOON_HEIGHT + POINTER_HEIGHT;
197        } else
198            y0 += POINTER_HEIGHT;
199    
200        /* calculate bottom/right of box */
201        int x1 = x0 + BALLOON_WIDTH, y1 = y0 + BALLOON_HEIGHT;
202    
203        /* save balloon screen coordinates for later use */
204        priv->balloon.rect.x = x0 + BALLOON_BORDER;
205        priv->balloon.rect.y = y0 + BALLOON_BORDER;
206        priv->balloon.rect.w = x1 - x0 - 2*BALLOON_BORDER;
207        priv->balloon.rect.h = y1 - y0 - 2*BALLOON_BORDER;
208    
209        cairo_t *cr = cairo_create(priv->balloon.surface);
210    
211        /* --------- draw shadow --------------- */
212        osm_gps_map_draw_balloon_shape (cr,
213                     x0 + BALLOON_SHADOW, y0 + BALLOON_SHADOW,
214                     x1 + BALLOON_SHADOW, y1 + BALLOON_SHADOW,
215                     bottom, pointer_x, pointer_y,
216                     pointer_x0 + BALLOON_SHADOW, pointer_x1 + BALLOON_SHADOW);
217    
218        cairo_set_source_rgba (cr, 0, 0, 0, BALLOON_SHADOW_TRANSPARENCY);
219        cairo_fill_preserve (cr);
220        cairo_set_source_rgba (cr, 1, 0, 0, 1.0);
221        cairo_set_line_width (cr, 0);
222        cairo_stroke (cr);
223    
224        /* --------- draw main shape ----------- */
225        osm_gps_map_draw_balloon_shape (cr, x0, y0, x1, y1,
226                     bottom, pointer_x, pointer_y, pointer_x0, pointer_x1);
227    
228        cairo_set_source_rgba (cr, 1, 1, 1, BALLOON_TRANSPARENCY);
229        cairo_fill_preserve (cr);
230        cairo_set_source_rgba (cr, 0, 0, 0, BALLOON_TRANSPARENCY);
231        cairo_set_line_width (cr, 1);
232        cairo_stroke (cr);
233    
234    
235        /* ---------- draw close button --------- */
236    
237        int cx = x1 - BALLOON_BORDER - CLOSE_BUTTON_RADIUS;
238        int cy = y0 + BALLOON_BORDER + CLOSE_BUTTON_RADIUS;
239        int crad = CLOSE_BUTTON_RADIUS;
240    
241        cairo_arc (cr, cx, cy, crad, 0, 2 * M_PI);
242        cairo_set_source_rgba (cr, 0.8, 0, 0, 1.0);
243        cairo_fill_preserve (cr);
244        cairo_set_source_rgba (cr, 0.3, 0, 0, 1.0);
245        cairo_set_line_width (cr, 2);
246        cairo_stroke(cr);
247    
248        cairo_set_source_rgba (cr, 1, 1, 1, 1.0);
249        cairo_set_line_width (cr, BALLOON_CORNER_RADIUS/3.3);
250        cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
251        cairo_move_to (cr, cx - crad/2, cy - crad/2);
252        cairo_line_to (cr, cx + crad/2, cy + crad/2);
253        cairo_stroke (cr);
254        cairo_move_to (cr, cx + crad/2, cy - crad/2);
255        cairo_line_to (cr, cx - crad/2, cy + crad/2);
256        cairo_stroke (cr);
257    
258        if (priv->balloon.cb) {
259            /* clip in case application tries to draw in */
260                /* exceed of the balloon */
261            cairo_rectangle (cr, priv->balloon.rect.x, priv->balloon.rect.y,
262                             priv->balloon.rect.w, priv->balloon.rect.h);
263            cairo_clip (cr);
264            cairo_new_path (cr);  /* current path is not
265                                     consumed by cairo_clip() */
266    
267            priv->balloon.cb(cr, &priv->balloon.rect, priv->balloon.data);
268        }
269    
270        cairo_destroy(cr);
271    }
272    
273    #if 0
274    /* the user clicked into the balloons main area. handle this */
275    static void
276    osm_gps_map_handle_balloon_click(OsmGpsMap *map, gint x, gint y)
277    {
278        OsmGpsMapPrivate *priv = map->priv;
279    
280        if (!priv->balloon.valid)
281            return;
282    
283        /* check if the close button was clicked */
284        if ((x > priv->balloon.rect.w - 2*CLOSE_BUTTON_RADIUS) &&
285            (x < priv->balloon.rect.w) &&
286            (y > 0) && (y < 2*CLOSE_BUTTON_RADIUS)) {
287    
288            priv->balloon.valid = FALSE;
289            osm_gps_map_map_redraw_idle(map);
290        }
291    }
292    
293    /* return true if balloon is being displayed and if */
294    /* the given coordinate is within this balloon */
295    static gboolean
296    osm_gps_map_in_balloon(OsmGpsMapPrivate *priv, gint x, gint y)
297    {
298        return (priv->balloon.valid &&
299                (x > priv->balloon.rect.x) &&
300                (x < priv->balloon.rect.x + priv->balloon.rect.w) &&
301                (y > priv->balloon.rect.y) &&
302                (y < priv->balloon.rect.y + priv->balloon.rect.h));
303    }
304    
305    #if 0
306        /* don't drag if the user clicked within the balloon */
307        if (osm_gps_map_in_balloon(priv,
308                       event->x + EXTRA_BORDER,
309                       event->y + EXTRA_BORDER))
310        {
311            priv->drag_counter = -1;
312            return FALSE;
313        }
314    
315    #ifdef ENABLE_BALLOON
316        /* released inside the balloon? */
317        if (osm_gps_map_in_balloon(priv,
318                       event->x + EXTRA_BORDER,
319                       event->y + EXTRA_BORDER))
320        {
321            osm_gps_map_handle_balloon_click(OSM_GPS_MAP(widget),
322                 event->x - priv->balloon.rect.x + EXTRA_BORDER,
323                 event->y - priv->balloon.rect.y + EXTRA_BORDER);
324        }
325    #endif
326    
327    #endif
328    
329    void
330    osm_gps_map_draw_balloon (OsmGpsMap *map, float latitude, float longitude,
331                              OsmGpsMapBalloonCallback cb, gpointer data)
332    {
333        OsmGpsMapPrivate *priv;
334    
335        /* remove and previously installed balloon */
336        osm_gps_map_clear_balloon (map);
337    
338        g_return_if_fail (OSM_IS_GPS_MAP (map));
339        priv = map->priv;
340    
341        priv->balloon.lat = latitude;
342        priv->balloon.lon = longitude;
343        priv->balloon.valid = TRUE;
344    
345        priv->balloon.cb = cb;
346        priv->balloon.data = data;
347    
348        // this redraws the map
349        osm_gps_map_map_redraw_idle(map);
350    }
351    
352    void
353    osm_gps_map_clear_balloon (OsmGpsMap *map)
354    {
355        OsmGpsMapPrivate *priv;
356    
357        g_return_if_fail (OSM_IS_GPS_MAP (map));
358        priv = map->priv;
359    
360        priv->balloon.valid = FALSE;
361    
362        osm_gps_map_map_redraw_idle(map);
363    }
364    #endif
365    
366    void osm_gps_map_osd_clear_balloon (OsmGpsMap *map) {
367        printf("request to clear balloon\n");
368    }
369    
370    void
371    osm_gps_map_osd_draw_balloon (OsmGpsMap *map, float latitude, float longitude,
372                                  OsmGpsMapBalloonCallback cb, gpointer data)
373    {
374        printf("request to draw balloon at %f %f\n", latitude, longitude);
375    }
376    
377    #endif // OSD_BALLOON
378    
379  /* position and extent of bounding box */  /* position and extent of bounding box */
380  #ifndef OSD_X  #ifndef OSD_X
381  #define OSD_X      (10)  #define OSD_X      (10)
# Line 272  osd_check_zoom(gint x, gint y) { Line 598  osd_check_zoom(gint x, gint y) {
598  #define OSD_S_H   (OSD_S_PH + OSD_SHADOW)  #define OSD_S_H   (OSD_S_PH + OSD_SHADOW)
599    
600  /* size of usable area when expanded */  /* size of usable area when expanded */
601  #define OSD_S_AREA_W (priv->width)  #define OSD_S_AREA_W (priv->source_sel.width)
602  #define OSD_S_AREA_H (priv->height)  #define OSD_S_AREA_H (priv->source_sel.height)
603  #define OSD_S_EXP_W  (OSD_S_PW + OSD_S_AREA_W + OSD_SHADOW)  #define OSD_S_EXP_W  (OSD_S_PW + OSD_S_AREA_W + OSD_SHADOW)
604  #define OSD_S_EXP_H  (OSD_S_AREA_H + OSD_SHADOW)  #define OSD_S_EXP_H  (OSD_S_AREA_H + OSD_SHADOW)
605    
# Line 289  osd_check_zoom(gint x, gint y) { Line 615  osd_check_zoom(gint x, gint y) {
615  /* or the entire menu incl. the puller (expanded) */  /* or the entire menu incl. the puller (expanded) */
616  static void  static void
617  osd_source_shape(osd_priv_t *priv, cairo_t *cr, gint x, gint y) {  osd_source_shape(osd_priv_t *priv, cairo_t *cr, gint x, gint y) {
618      if(!priv->expanded) {      if(!priv->source_sel.expanded) {
619          /* just draw the puller */          /* just draw the puller */
620          cairo_move_to (cr, x + OSD_S_PW, y + OSD_S_PH);          cairo_move_to (cr, x + OSD_S_PW, y + OSD_S_PH);
621          cairo_arc (cr, x+OSD_S_RAD, y+OSD_S_RAD, OSD_S_RAD, M_PI/2, -M_PI/2);          cairo_arc (cr, x+OSD_S_RAD, y+OSD_S_RAD, OSD_S_RAD, M_PI/2, -M_PI/2);
# Line 317  osd_source_content(osm_gps_map_osd_t *os Line 643  osd_source_content(osm_gps_map_osd_t *os
643    
644      int py = offset + OSD_S_RAD - OSD_S_D0;      int py = offset + OSD_S_RAD - OSD_S_D0;
645    
646      if(!priv->expanded) {      if(!priv->source_sel.expanded) {
647          /* draw the "puller" open (<) arrow */          /* draw the "puller" open (<) arrow */
648          cairo_move_to (cr, offset + OSD_S_RAD + OSD_S_D0/2, py);          cairo_move_to (cr, offset + OSD_S_RAD + OSD_S_D0/2, py);
649          cairo_rel_line_to (cr, -OSD_S_D0, +OSD_S_D0);          cairo_rel_line_to (cr, -OSD_S_D0, +OSD_S_D0);
# Line 342  osd_source_content(osm_gps_map_osd_t *os Line 668  osd_source_content(osm_gps_map_osd_t *os
668                                      CAIRO_FONT_WEIGHT_BOLD);                                      CAIRO_FONT_WEIGHT_BOLD);
669              cairo_set_font_size (cr, OSD_FONT_SIZE);              cairo_set_font_size (cr, OSD_FONT_SIZE);
670    
671              int i, step = (priv->height - 2*OSD_TEXT_BORDER)              int i, step = (priv->source_sel.height - 2*OSD_TEXT_BORDER) /
672                  / OSM_GPS_MAP_SOURCE_LAST;                  OSM_GPS_MAP_SOURCE_LAST;
673              for(i=OSM_GPS_MAP_SOURCE_NULL+1;i<=OSM_GPS_MAP_SOURCE_LAST;i++) {              for(i=OSM_GPS_MAP_SOURCE_NULL+1;i<=OSM_GPS_MAP_SOURCE_LAST;i++) {
674                  cairo_text_extents_t extents;                  cairo_text_extents_t extents;
675                  const char *src = osm_gps_map_source_get_friendly_name(i);                  const char *src = osm_gps_map_source_get_friendly_name(i);
# Line 356  osd_source_content(osm_gps_map_osd_t *os Line 682  osd_source_content(osm_gps_map_osd_t *os
682                  if(source == i) {                  if(source == i) {
683                      cairo_rectangle(cr, x - OSD_TEXT_BORDER/2,                      cairo_rectangle(cr, x - OSD_TEXT_BORDER/2,
684                                      y - OSD_TEXT_SKIP,                                      y - OSD_TEXT_SKIP,
685                                      priv->width - OSD_TEXT_BORDER,                                      priv->source_sel.width - OSD_TEXT_BORDER,
686                                      step + OSD_TEXT_SKIP);                                      step + OSD_TEXT_SKIP);
687                      cairo_fill(cr);                      cairo_fill(cr);
688    
# Line 387  osd_source_content(osm_gps_map_osd_t *os Line 713  osd_source_content(osm_gps_map_osd_t *os
713  }  }
714    
715  static void  static void
716  osd_render_source_sel(osm_gps_map_osd_t *osd) {  osd_render_source_sel(osm_gps_map_osd_t *osd, gboolean force_rerender) {
717      osd_priv_t *priv = (osd_priv_t*)osd->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
718    
719        if(priv->source_sel.rendered && !force_rerender)
720            return;
721    
722        priv->source_sel.rendered = TRUE;
723    
724  #ifndef OSD_COLOR  #ifndef OSD_COLOR
725      GdkColor bg = GTK_WIDGET(osd->widget)->style->bg[GTK_STATE_NORMAL];      GdkColor bg = GTK_WIDGET(osd->widget)->style->bg[GTK_STATE_NORMAL];
726      GdkColor fg = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_NORMAL];      GdkColor fg = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_NORMAL];
# Line 397  osd_render_source_sel(osm_gps_map_osd_t Line 728  osd_render_source_sel(osm_gps_map_osd_t
728  #endif  #endif
729    
730      /* draw source selector */      /* draw source selector */
731      cairo_t *cr = cairo_create(priv->map_source);      cairo_t *cr = cairo_create(priv->source_sel.surface);
732      cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);      cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
733      cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0);      cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0);
734      cairo_paint(cr);      cairo_paint(cr);
# Line 431  osd_render_source_sel(osm_gps_map_osd_t Line 762  osd_render_source_sel(osm_gps_map_osd_t
762      cairo_destroy(cr);      cairo_destroy(cr);
763  }  }
764    
765    /* re-allocate the buffer used to draw the menu. This is used */
766    /* to collapse/expand the buffer */
767  static void  static void
768  osd_source_reallocate(osm_gps_map_osd_t *osd) {  osd_source_reallocate(osm_gps_map_osd_t *osd) {
769      osd_priv_t *priv = (osd_priv_t*)osd->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
770    
771      /* re-allocate offscreen bitmap */      /* re-allocate offscreen bitmap */
772      g_assert (priv->map_source);      g_assert (priv->source_sel.surface);
773    
774      int w = OSD_S_W, h = OSD_S_H;      int w = OSD_S_W, h = OSD_S_H;
775      if(priv->expanded) {      if(priv->source_sel.expanded) {
         /* ... and right of it the waypoint id */  
776          cairo_text_extents_t extents;          cairo_text_extents_t extents;
777    
778          /* determine content size */          /* determine content size */
779          cairo_t *cr = cairo_create(priv->map_source);          cairo_t *cr = cairo_create(priv->source_sel.surface);
780          cairo_select_font_face (cr, "Sans",          cairo_select_font_face (cr, "Sans",
781                                  CAIRO_FONT_SLANT_NORMAL,                                  CAIRO_FONT_SLANT_NORMAL,
782                                  CAIRO_FONT_WEIGHT_BOLD);                                  CAIRO_FONT_WEIGHT_BOLD);
# Line 456  osd_source_reallocate(osm_gps_map_osd_t Line 788  osd_source_reallocate(osm_gps_map_osd_t
788              const char *src = osm_gps_map_source_get_friendly_name(i);              const char *src = osm_gps_map_source_get_friendly_name(i);
789              cairo_text_extents (cr, src, &extents);              cairo_text_extents (cr, src, &extents);
790    
             //            printf("Source %d: %s = %f %f\n", i, src,  
             //                   extents.width, extents.height);  
   
791              if(extents.width > max_w) max_w = extents.width;              if(extents.width > max_w) max_w = extents.width;
792              if(extents.height > max_h) max_h = extents.height;              if(extents.height > max_h) max_h = extents.height;
793          }          }
794          cairo_destroy(cr);          cairo_destroy(cr);
795    
796          priv->width  = max_w + 2*OSD_TEXT_BORDER;          priv->source_sel.width  = max_w + 2*OSD_TEXT_BORDER;
797          priv->height = OSM_GPS_MAP_SOURCE_LAST *          priv->source_sel.height = OSM_GPS_MAP_SOURCE_LAST *
798              (max_h + 2*OSD_TEXT_SKIP) + 2*OSD_TEXT_BORDER;              (max_h + 2*OSD_TEXT_SKIP) + 2*OSD_TEXT_BORDER;
799    
800          w = OSD_S_EXP_W;          w = OSD_S_EXP_W;
801          h = OSD_S_EXP_H;          h = OSD_S_EXP_H;
802      }      }
803    
804      cairo_surface_destroy(priv->map_source);      cairo_surface_destroy(priv->source_sel.surface);
805      priv->map_source =      priv->source_sel.surface =
806          cairo_image_surface_create(CAIRO_FORMAT_ARGB32, w+2, h+2);          cairo_image_surface_create(CAIRO_FORMAT_ARGB32, w+2, h+2);
807    
808      osd_render_source_sel(osd);      osd_render_source_sel(osd, TRUE);
   
809  }  }
810    
811  #define OSD_HZ      15  #define OSD_HZ      15
# Line 488  static gboolean osd_source_animate(gpoin Line 816  static gboolean osd_source_animate(gpoin
816      osd_priv_t *priv = (osd_priv_t*)osd->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
817      int diff = OSD_S_EXP_W - OSD_S_W - OSD_S_X;      int diff = OSD_S_EXP_W - OSD_S_W - OSD_S_X;
818      gboolean done = FALSE;      gboolean done = FALSE;
819      priv->count += priv->dir;      priv->source_sel.count += priv->source_sel.dir;
820    
821      /* shifting in */      /* shifting in */
822      if(priv->dir < 0) {      if(priv->source_sel.dir < 0) {
823          if(priv->count <= 0) {          if(priv->source_sel.count <= 0) {
824              priv->count = 0;              priv->source_sel.count = 0;
825              done = TRUE;              done = TRUE;
826          }          }
827      } else {      } else {
828          if(priv->count >= 1000) {          if(priv->source_sel.count >= 1000) {
829              priv->expanded = FALSE;              priv->source_sel.expanded = FALSE;
830              osd_source_reallocate(osd);              osd_source_reallocate(osd);
831    
832              priv->count = 1000;              priv->source_sel.count = 1000;
833              done = TRUE;              done = TRUE;
834          }          }
835      }      }
# Line 509  static gboolean osd_source_animate(gpoin Line 837  static gboolean osd_source_animate(gpoin
837    
838      /* count runs linearly from 0 to 1000, map this nicely onto a position */      /* count runs linearly from 0 to 1000, map this nicely onto a position */
839    
840      /* simple linear mapping */      /* nice sinoid mapping */
841      //    priv->shift = (osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X) +      float m = 0.5-cos(priv->source_sel.count * M_PI / 1000.0)/2;
842      //        (diff * priv->count)/1000;      priv->source_sel.shift =
843            (osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X) +
     /* nicer sinoid mapping */  
     float m = 0.5-cos(priv->count * M_PI / 1000.0)/2;  
     priv->shift = (osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X) +  
844          m * diff;          m * diff;
845    
846        /* make sure the screen is updated */
847      osm_gps_map_repaint(OSM_GPS_MAP(osd->widget));      osm_gps_map_repaint(OSM_GPS_MAP(osd->widget));
848    
849        /* stop animation if done */
850      if(done)      if(done)
851          priv->handler_id = 0;          priv->source_sel.handler_id = 0;
852    
853      return !done;      return !done;
854  }  }
# Line 533  osd_source_toggle(osm_gps_map_osd_t *osd Line 860  osd_source_toggle(osm_gps_map_osd_t *osd
860      osd_priv_t *priv = (osd_priv_t*)osd->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
861    
862      /* ignore clicks while animation is running */      /* ignore clicks while animation is running */
863      if(priv->handler_id)      if(priv->source_sel.handler_id)
864          return;          return;
865    
866      /* expand immediately, collapse is handle at the end of the collapse animation */      /* expand immediately, collapse is handle at the end of the */
867      if(!priv->expanded) {      /* collapse animation */
868          priv->expanded = TRUE;      if(!priv->source_sel.expanded) {
869            priv->source_sel.expanded = TRUE;
870          osd_source_reallocate(osd);          osd_source_reallocate(osd);
871    
872          priv->count = 1000;          priv->source_sel.count = 1000;
873          priv->shift = osd->widget->allocation.width - OSD_S_W;          priv->source_sel.shift = osd->widget->allocation.width - OSD_S_W;
874          priv->dir = -1000/OSD_HZ;          priv->source_sel.dir = -1000/OSD_HZ;
875      } else {      } else {
876          priv->count =  0;          priv->source_sel.count =  0;
877          priv->shift = osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X;          priv->source_sel.shift = osd->widget->allocation.width -
878          priv->dir = +1000/OSD_HZ;              OSD_S_EXP_W + OSD_S_X;
879            priv->source_sel.dir = +1000/OSD_HZ;
880      }      }
881    
882      priv->handler_id = gtk_timeout_add(OSD_TIME/OSD_HZ, osd_source_animate, osd);      /* start timer to handle animation */
883        priv->source_sel.handler_id = gtk_timeout_add(OSD_TIME/OSD_HZ,
884                                                      osd_source_animate, osd);
885  }  }
886    
887    /* check if the user clicked inside the source selection area */
888  static osd_button_t  static osd_button_t
889  osd_source_check(osm_gps_map_osd_t *osd, gint x, gint y) {  osd_source_check(osm_gps_map_osd_t *osd, gint x, gint y) {
890      osd_priv_t *priv = (osd_priv_t*)osd->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
891    
892      if(!priv->expanded)      if(!priv->source_sel.expanded)
893          x -= osd->widget->allocation.width - OSD_S_W;          x -= osd->widget->allocation.width - OSD_S_W;
894      else      else
895          x -= osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X;          x -= osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X;
# Line 581  osd_source_check(osm_gps_map_osd_t *osd, Line 913  osd_source_check(osm_gps_map_osd_t *osd,
913      }      }
914    
915      /* check for clicks into data area */      /* check for clicks into data area */
916      if(priv->expanded) {      if(priv->source_sel.expanded && !priv->source_sel.handler_id) {
917            /* re-adjust from puller top to content top */
918            if(OSD_S_Y < 0)
919                y += OSD_S_EXP_H - OSD_S_PH;
920    
921          if(x > OSD_S_PW &&          if(x > OSD_S_PW &&
922             x < OSD_S_PW + OSD_S_EXP_W &&             x < OSD_S_PW + OSD_S_EXP_W &&
923             y > 0 &&             y > 0 &&
924             y < OSD_S_EXP_H) {             y < OSD_S_EXP_H) {
925    
926                int step = (priv->source_sel.height - 2*OSD_TEXT_BORDER)
927                    / OSM_GPS_MAP_SOURCE_LAST;
928    
929              printf("in OSD source menu area\n");              y -= OSD_TEXT_BORDER - OSD_TEXT_SKIP;
930                y /= step;
931                y += 1;
932    
933                gint old = 0;
934                g_object_get(osd->widget, "map-source", &old, NULL);
935    
936                if(y > OSM_GPS_MAP_SOURCE_NULL &&
937                   y <= OSM_GPS_MAP_SOURCE_LAST &&
938                   old != y) {
939                    g_object_set(osd->widget, "map-source", y, NULL);
940    
941                    osd_render_source_sel(osd, TRUE);
942                    osm_gps_map_repaint(OSM_GPS_MAP(osd->widget));
943                }
944    
945                /* return "clicked in OSD background" to prevent further */
946                /* processing by application */
947              return OSD_BG;              return OSD_BG;
948          }          }
949      }      }
# Line 701  osd_zoom_labels(cairo_t *cr, gint x, gin Line 1056  osd_zoom_labels(cairo_t *cr, gint x, gin
1056      cairo_line_to (cr, x + Z_RIGHT + Z_LEN, y + Z_MID);      cairo_line_to (cr, x + Z_RIGHT + Z_LEN, y + Z_MID);
1057  }  }
1058    
1059    #ifdef OSD_COORDINATES
1060    
1061    #ifndef OSD_COORDINATES_FONT_SIZE
1062    #define OSD_COORDINATES_FONT_SIZE 12
1063    #endif
1064    
1065    #define OSD_COORDINATES_OFFSET (OSD_COORDINATES_FONT_SIZE/6)
1066    
1067    #define OSD_COORDINATES_W  (8*OSD_COORDINATES_FONT_SIZE+2*OSD_COORDINATES_OFFSET)
1068    #define OSD_COORDINATES_H  (2*OSD_COORDINATES_FONT_SIZE+OSD_COORDINATES_OFFSET)
1069    
1070    /* these can be overwritten with versions that support */
1071    /* localization */
1072    #ifndef OSD_COORDINATES_CHR_N
1073    #define OSD_COORDINATES_CHR_N  "N"
1074    #endif
1075    #ifndef OSD_COORDINATES_CHR_S
1076    #define OSD_COORDINATES_CHR_S  "S"
1077    #endif
1078    #ifndef OSD_COORDINATES_CHR_E
1079    #define OSD_COORDINATES_CHR_E  "E"
1080    #endif
1081    #ifndef OSD_COORDINATES_CHR_W
1082    #define OSD_COORDINATES_CHR_W  "W"
1083    #endif
1084    
1085    
1086    
1087    /* this is the classic geocaching notation */
1088    static char
1089    *osd_latitude_str(float latitude) {
1090        char *c = OSD_COORDINATES_CHR_N;
1091        float integral, fractional;
1092    
1093        if(isnan(latitude))
1094            return NULL;
1095    
1096        if(latitude < 0) {
1097            latitude = fabs(latitude);
1098            c = OSD_COORDINATES_CHR_S;
1099        }
1100    
1101        fractional = modff(latitude, &integral);
1102    
1103        return g_strdup_printf("%s %02d° %06.3f'",
1104                               c, (int)integral, fractional*60.0);
1105    }
1106    
1107    static char
1108    *osd_longitude_str(float longitude) {
1109        char *c = OSD_COORDINATES_CHR_E;
1110        float integral, fractional;
1111    
1112        if(isnan(longitude))
1113            return NULL;
1114    
1115        if(longitude < 0) {
1116            longitude = fabs(longitude);
1117            c = OSD_COORDINATES_CHR_W;
1118        }
1119    
1120        fractional = modff(longitude, &integral);
1121    
1122        return g_strdup_printf("%s %03d° %06.3f'",
1123                               c, (int)integral, fractional*60.0);
1124    }
1125    
1126  static void  static void
1127  osd_render(osm_gps_map_osd_t *osd) {  osd_render_coordinates(osm_gps_map_osd_t *osd)
1128    {
1129      osd_priv_t *priv = (osd_priv_t*)osd->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
1130    
1131        /* get current map position */
1132        gfloat lat, lon;
1133        g_object_get(osd->widget, "latitude", &lat, "longitude", &lon, NULL);
1134    
1135        /* check if position has changed enough to require redraw */
1136        if(!isnan(priv->coordinates.lat) && !isnan(priv->coordinates.lon))
1137            /* 1/60000 == 1/1000 minute */
1138            if((fabsf(lat - priv->coordinates.lat) < 1/60000) &&
1139               (fabsf(lon - priv->coordinates.lon) < 1/60000))
1140                return;
1141    
1142        priv->coordinates.lat = lat;
1143        priv->coordinates.lon = lon;
1144    
1145        /* first fill with transparency */
1146        cairo_t *cr = cairo_create(priv->coordinates.surface);
1147        cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
1148        //    cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 0.5);
1149        cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.0);
1150        cairo_paint(cr);
1151        cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
1152    
1153        cairo_select_font_face (cr, "Sans",
1154                                CAIRO_FONT_SLANT_NORMAL,
1155                                CAIRO_FONT_WEIGHT_BOLD);
1156        cairo_set_font_size (cr, OSD_COORDINATES_FONT_SIZE);
1157    
1158        char *latitude = osd_latitude_str(lat);
1159        char *longitude = osd_longitude_str(lon);
1160    
1161        cairo_text_extents_t lat_extents, lon_extents;
1162        cairo_text_extents (cr, latitude, &lat_extents);
1163        cairo_text_extents (cr, longitude, &lon_extents);
1164    
1165        cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
1166        cairo_set_line_width (cr, OSD_COORDINATES_FONT_SIZE/6);
1167        cairo_move_to (cr,
1168                       (OSD_COORDINATES_W - lat_extents.width)/2,
1169                       OSD_COORDINATES_OFFSET - lat_extents.y_bearing);
1170        cairo_text_path (cr, latitude);
1171        cairo_move_to (cr,
1172                       (OSD_COORDINATES_W - lon_extents.width)/2,
1173                       OSD_COORDINATES_OFFSET - lon_extents.y_bearing +
1174                       OSD_COORDINATES_FONT_SIZE);
1175        cairo_text_path (cr, longitude);
1176        cairo_stroke (cr);
1177    
1178        cairo_set_source_rgb(cr, 0.0, 0.0, 0.0);
1179        cairo_move_to (cr,
1180                       (OSD_COORDINATES_W - lat_extents.width)/2,
1181                       OSD_COORDINATES_OFFSET - lat_extents.y_bearing);
1182        cairo_show_text (cr, latitude);
1183        cairo_move_to (cr,
1184                       (OSD_COORDINATES_W - lon_extents.width)/2,
1185                       OSD_COORDINATES_OFFSET - lon_extents.y_bearing +
1186                       OSD_COORDINATES_FONT_SIZE);
1187        cairo_show_text (cr, longitude);
1188    
1189        g_free(latitude);
1190        g_free(longitude);
1191    
1192        cairo_destroy(cr);
1193    }
1194    #endif  // OSD_COORDINATES
1195    
1196    #ifdef OSD_CROSSHAIR
1197    
1198    #ifndef OSD_CROSSHAIR_RADIUS
1199    #define OSD_CROSSHAIR_RADIUS 10
1200    #endif
1201    
1202    #define OSD_CROSSHAIR_TICK  (OSD_CROSSHAIR_RADIUS/2)
1203    #define OSD_CROSSHAIR_BORDER (OSD_CROSSHAIR_TICK + OSD_CROSSHAIR_RADIUS/4)
1204    #define OSD_CROSSHAIR_W  ((OSD_CROSSHAIR_RADIUS+OSD_CROSSHAIR_BORDER)*2)
1205    #define OSD_CROSSHAIR_H  ((OSD_CROSSHAIR_RADIUS+OSD_CROSSHAIR_BORDER)*2)
1206    
1207    static void
1208    osd_render_crosshair_shape(cairo_t *cr) {
1209        cairo_arc (cr, OSD_CROSSHAIR_W/2, OSD_CROSSHAIR_H/2,
1210                   OSD_CROSSHAIR_RADIUS, 0,  2*M_PI);
1211    
1212        cairo_move_to (cr, OSD_CROSSHAIR_W/2 - OSD_CROSSHAIR_RADIUS,
1213                       OSD_CROSSHAIR_H/2);
1214        cairo_rel_line_to (cr, -OSD_CROSSHAIR_TICK, 0);
1215        cairo_move_to (cr, OSD_CROSSHAIR_W/2 + OSD_CROSSHAIR_RADIUS,
1216                       OSD_CROSSHAIR_H/2);
1217        cairo_rel_line_to (cr,  OSD_CROSSHAIR_TICK, 0);
1218    
1219        cairo_move_to (cr, OSD_CROSSHAIR_W/2,
1220                       OSD_CROSSHAIR_H/2 - OSD_CROSSHAIR_RADIUS);
1221        cairo_rel_line_to (cr, 0, -OSD_CROSSHAIR_TICK);
1222        cairo_move_to (cr, OSD_CROSSHAIR_W/2,
1223                       OSD_CROSSHAIR_H/2 + OSD_CROSSHAIR_RADIUS);
1224        cairo_rel_line_to (cr, 0, OSD_CROSSHAIR_TICK);
1225    
1226        cairo_stroke (cr);
1227    }
1228    
1229    static void
1230    osd_render_crosshair(osm_gps_map_osd_t *osd)
1231    {
1232        osd_priv_t *priv = (osd_priv_t*)osd->priv;
1233    
1234        if(priv->crosshair.rendered)
1235            return;
1236    
1237        priv->crosshair.rendered = TRUE;
1238    
1239        /* first fill with transparency */
1240        cairo_t *cr = cairo_create(priv->crosshair.surface);
1241        cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
1242        cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.0);
1243        cairo_paint(cr);
1244        cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
1245    
1246        cairo_set_line_cap  (cr, CAIRO_LINE_CAP_ROUND);
1247    
1248        cairo_set_source_rgba (cr, 1.0, 1.0, 1.0, 0.5);
1249        cairo_set_line_width (cr, OSD_CROSSHAIR_RADIUS/2);
1250        osd_render_crosshair_shape(cr);
1251    
1252        cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 0.5);
1253        cairo_set_line_width (cr, OSD_CROSSHAIR_RADIUS/4);
1254        osd_render_crosshair_shape(cr);
1255    
1256        cairo_destroy(cr);
1257    }
1258    #endif
1259    
1260    #ifdef OSD_SCALE
1261    
1262    #ifndef OSD_SCALE_FONT_SIZE
1263    #define OSD_SCALE_FONT_SIZE 12
1264    #endif
1265    #define OSD_SCALE_W   (10*OSD_SCALE_FONT_SIZE)
1266    #define OSD_SCALE_H   (5*OSD_SCALE_FONT_SIZE/2)
1267    
1268    /* various parameters used to create the scale */
1269    #define OSD_SCALE_H2   (OSD_SCALE_H/2)
1270    #define OSD_SCALE_TICK (2*OSD_SCALE_FONT_SIZE/3)
1271    #define OSD_SCALE_M    (OSD_SCALE_H2 - OSD_SCALE_TICK)
1272    #define OSD_SCALE_I    (OSD_SCALE_H2 + OSD_SCALE_TICK)
1273    #define OSD_SCALE_FD   (OSD_SCALE_FONT_SIZE/4)
1274    
1275    static void
1276    osd_render_scale(osm_gps_map_osd_t *osd)
1277    {
1278        osd_priv_t *priv = (osd_priv_t*)osd->priv;
1279    
1280        /* this only needs to be rendered if the zoom has changed */
1281        gint zoom;
1282        g_object_get(OSM_GPS_MAP(osd->widget), "zoom", &zoom, NULL);
1283        if(zoom == priv->scale.zoom)
1284            return;
1285    
1286        priv->scale.zoom = zoom;
1287    
1288        float m_per_pix = osm_gps_map_get_scale(OSM_GPS_MAP(osd->widget));
1289    
1290        /* first fill with transparency */
1291        cairo_t *cr = cairo_create(priv->scale.surface);
1292        cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
1293        cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0);
1294        // pink for testing:    cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.2);
1295        cairo_paint(cr);
1296        cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
1297    
1298        /* determine the size of the scale width in meters */
1299        float width = (OSD_SCALE_W-OSD_SCALE_FONT_SIZE/6) * m_per_pix;
1300    
1301        /* scale this to useful values */
1302        int exp = logf(width)*M_LOG10E;
1303        int mant = width/pow(10,exp);
1304        int width_metric = mant * pow(10,exp);
1305        char *dist_str = NULL;
1306        if(width_metric<1000)
1307            dist_str = g_strdup_printf("%u m", width_metric);
1308        else
1309            dist_str = g_strdup_printf("%u km", width_metric/1000);
1310        width_metric /= m_per_pix;
1311    
1312        /* and now the hard part: scale for useful imperial values :-( */
1313        /* try to convert to feet, 1ft == 0.3048 m */
1314        width /= 0.3048;
1315        float imp_scale = 0.3048;
1316        char *dist_imp_unit = "ft";
1317    
1318        if(width >= 100) {
1319            /* 1yd == 3 feet */
1320            width /= 3.0;
1321            imp_scale *= 3.0;
1322            dist_imp_unit = "yd";
1323    
1324            if(width >= 1760.0) {
1325                /* 1mi == 1760 yd */
1326                width /= 1760.0;
1327                imp_scale *= 1760.0;
1328                dist_imp_unit = "mi";
1329            }
1330        }
1331    
1332        /* also convert this to full tens/hundreds */
1333        exp = logf(width)*M_LOG10E;
1334        mant = width/pow(10,exp);
1335        int width_imp = mant * pow(10,exp);
1336        char *dist_str_imp = g_strdup_printf("%u %s", width_imp, dist_imp_unit);
1337    
1338        /* convert back to pixels */
1339        width_imp *= imp_scale;
1340        width_imp /= m_per_pix;
1341    
1342        cairo_select_font_face (cr, "Sans",
1343                                CAIRO_FONT_SLANT_NORMAL,
1344                                CAIRO_FONT_WEIGHT_BOLD);
1345        cairo_set_font_size (cr, OSD_SCALE_FONT_SIZE);
1346        cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 1.0);
1347    
1348        cairo_text_extents_t extents;
1349        cairo_text_extents (cr, dist_str, &extents);
1350    
1351        cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
1352        cairo_set_line_width (cr, OSD_SCALE_FONT_SIZE/6);
1353        cairo_move_to (cr, 2*OSD_SCALE_FD, OSD_SCALE_H2-OSD_SCALE_FD);
1354        cairo_text_path (cr, dist_str);
1355        cairo_stroke (cr);
1356        cairo_move_to (cr, 2*OSD_SCALE_FD,
1357                       OSD_SCALE_H2+OSD_SCALE_FD + extents.height);
1358        cairo_text_path (cr, dist_str_imp);
1359        cairo_stroke (cr);
1360    
1361        cairo_set_source_rgb(cr, 0.0, 0.0, 0.0);
1362        cairo_move_to (cr, 2*OSD_SCALE_FD, OSD_SCALE_H2-OSD_SCALE_FD);
1363        cairo_show_text (cr, dist_str);
1364        cairo_move_to (cr, 2*OSD_SCALE_FD,
1365                       OSD_SCALE_H2+OSD_SCALE_FD + extents.height);
1366        cairo_show_text (cr, dist_str_imp);
1367    
1368        g_free(dist_str);
1369        g_free(dist_str_imp);
1370    
1371        /* draw white line */
1372        cairo_set_line_cap  (cr, CAIRO_LINE_CAP_ROUND);
1373        cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 1.0);
1374        cairo_set_line_width (cr, OSD_SCALE_FONT_SIZE/3);
1375        cairo_move_to (cr, OSD_SCALE_FONT_SIZE/6, OSD_SCALE_M);
1376        cairo_rel_line_to (cr, 0,  OSD_SCALE_TICK);
1377        cairo_rel_line_to (cr, width_metric, 0);
1378        cairo_rel_line_to (cr, 0, -OSD_SCALE_TICK);
1379        cairo_stroke(cr);
1380        cairo_move_to (cr, OSD_SCALE_FONT_SIZE/6, OSD_SCALE_I);
1381        cairo_rel_line_to (cr, 0, -OSD_SCALE_TICK);
1382        cairo_rel_line_to (cr, width_imp, 0);
1383        cairo_rel_line_to (cr, 0, +OSD_SCALE_TICK);
1384        cairo_stroke(cr);
1385    
1386        /* draw black line */
1387        cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 1.0);
1388        cairo_set_line_width (cr, OSD_SCALE_FONT_SIZE/6);
1389        cairo_move_to (cr, OSD_SCALE_FONT_SIZE/6, OSD_SCALE_M);
1390        cairo_rel_line_to (cr, 0,  OSD_SCALE_TICK);
1391        cairo_rel_line_to (cr, width_metric, 0);
1392        cairo_rel_line_to (cr, 0, -OSD_SCALE_TICK);
1393        cairo_stroke(cr);
1394        cairo_move_to (cr, OSD_SCALE_FONT_SIZE/6, OSD_SCALE_I);
1395        cairo_rel_line_to (cr, 0, -OSD_SCALE_TICK);
1396        cairo_rel_line_to (cr, width_imp, 0);
1397        cairo_rel_line_to (cr, 0, +OSD_SCALE_TICK);
1398        cairo_stroke(cr);
1399    
1400        cairo_destroy(cr);
1401    }
1402    #endif
1403    
1404    static void
1405    osd_render_controls(osm_gps_map_osd_t *osd)
1406    {
1407        osd_priv_t *priv = (osd_priv_t*)osd->priv;
1408    
1409        if(priv->controls.rendered
1410    #ifdef OSD_GPS_BUTTON
1411           && (priv->controls.gps_enabled == (osd->cb != NULL))
1412    #endif
1413           )
1414            return;
1415    
1416    #ifdef OSD_GPS_BUTTON
1417        priv->controls.gps_enabled = (osd->cb != NULL);
1418    #endif
1419        priv->controls.rendered = TRUE;
1420    
1421  #ifndef OSD_COLOR  #ifndef OSD_COLOR
1422      GdkColor bg = GTK_WIDGET(osd->widget)->style->bg[GTK_STATE_NORMAL];      GdkColor bg = GTK_WIDGET(osd->widget)->style->bg[GTK_STATE_NORMAL];
1423      GdkColor fg = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_NORMAL];      GdkColor fg = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_NORMAL];
# Line 712  osd_render(osm_gps_map_osd_t *osd) { Line 1425  osd_render(osm_gps_map_osd_t *osd) {
1425  #endif  #endif
1426    
1427      /* first fill with transparency */      /* first fill with transparency */
1428      cairo_t *cr = cairo_create(priv->overlay);      cairo_t *cr = cairo_create(priv->controls.surface);
1429      cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);      cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
1430      cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0);      cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0);
1431      cairo_paint(cr);      cairo_paint(cr);
# Line 783  osd_render(osm_gps_map_osd_t *osd) { Line 1496  osd_render(osm_gps_map_osd_t *osd) {
1496      cairo_stroke(cr);      cairo_stroke(cr);
1497    
1498      cairo_destroy(cr);      cairo_destroy(cr);
1499    }
1500    
1501    static void
1502    osd_render(osm_gps_map_osd_t *osd)
1503    {
1504        /* this function is actually called pretty often since the */
1505        /* OSD contents may have changed (due to a coordinate/zoom change). */
1506        /* The different OSD parts have to make sure that they don't */
1507        /* render unneccessarily often and thus waste CPU power */
1508    
1509        osd_render_controls(osd);
1510    
1511  #ifdef OSD_SOURCE_SEL  #ifdef OSD_SOURCE_SEL
1512      osd_render_source_sel(osd);      osd_render_source_sel(osd, FALSE);
1513    #endif
1514    
1515    #ifdef OSD_SCALE
1516        osd_render_scale(osd);
1517    #endif
1518    
1519    #ifdef OSD_CROSSHAIR
1520        osd_render_crosshair(osd);
1521    #endif
1522    
1523    #ifdef OSD_COORDINATES
1524        osd_render_coordinates(osd);
1525  #endif  #endif
1526  }  }
1527    
# Line 796  osd_draw(osm_gps_map_osd_t *osd, GdkDraw Line 1532  osd_draw(osm_gps_map_osd_t *osd, GdkDraw
1532    
1533      /* OSD itself uses some off-screen rendering, so check if the */      /* OSD itself uses some off-screen rendering, so check if the */
1534      /* offscreen buffer is present and create it if not */      /* offscreen buffer is present and create it if not */
1535      if(!priv->overlay) {      if(!priv->controls.surface) {
1536          /* create overlay ... */          /* create overlay ... */
1537          priv->overlay =          priv->controls.surface =
1538              cairo_image_surface_create(CAIRO_FORMAT_ARGB32, OSD_W+2, OSD_H+2);              cairo_image_surface_create(CAIRO_FORMAT_ARGB32, OSD_W+2, OSD_H+2);
1539    
1540            priv->controls.rendered = FALSE;
1541    #ifdef OSD_GPS_BUTTON
1542            priv->controls.gps_enabled = FALSE;
1543    #endif
1544    
1545  #ifdef OSD_SOURCE_SEL  #ifdef OSD_SOURCE_SEL
1546          /* the initial OSD state is alway not-expanded */          /* the initial OSD state is alway not-expanded */
1547          priv->map_source =          priv->source_sel.surface =
1548              cairo_image_surface_create(CAIRO_FORMAT_ARGB32,              cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
1549                                             OSD_S_W+2, OSD_S_H+2);                                             OSD_S_W+2, OSD_S_H+2);
1550            priv->source_sel.rendered = FALSE;
1551    #endif
1552    
1553    #ifdef OSD_SCALE
1554            priv->scale.surface =
1555                cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
1556                                           OSD_SCALE_W, OSD_SCALE_H);
1557            priv->scale.zoom = -1;
1558    #endif
1559    
1560    #ifdef OSD_CROSSHAIR
1561            priv->crosshair.surface =
1562                cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
1563                                           OSD_CROSSHAIR_W, OSD_CROSSHAIR_H);
1564            priv->crosshair.rendered = FALSE;
1565    #endif
1566    
1567    #ifdef OSD_COORDINATES
1568            priv->coordinates.surface =
1569                cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
1570                                           OSD_COORDINATES_W, OSD_COORDINATES_H);
1571    
1572            priv->coordinates.lat = priv->coordinates.lon = OSM_GPS_MAP_INVALID;
1573  #endif  #endif
1574    
1575          /* ... and render it */          /* ... and render it */
# Line 815  osd_draw(osm_gps_map_osd_t *osd, GdkDraw Line 1579  osd_draw(osm_gps_map_osd_t *osd, GdkDraw
1579      // now draw this onto the original context      // now draw this onto the original context
1580      cairo_t *cr = gdk_cairo_create(drawable);      cairo_t *cr = gdk_cairo_create(drawable);
1581    
1582      int x = OSD_X, y = OSD_Y;      int x, y;
     if(OSD_X < 0)  
         x = osd->widget->allocation.width - OSD_W + OSD_X;  
1583    
1584      if(OSD_Y < 0)  #ifdef OSD_SCALE
1585          y = osd->widget->allocation.height - OSD_H + OSD_Y;      x =  OSD_X;
1586        y = -OSD_Y;
1587        if(x < 0) x += osd->widget->allocation.width - OSD_SCALE_W;
1588        if(y < 0) y += osd->widget->allocation.height - OSD_SCALE_H;
1589    
1590        cairo_set_source_surface(cr, priv->scale.surface, x, y);
1591        cairo_paint(cr);
1592    #endif
1593    
1594    #ifdef OSD_CROSSHAIR
1595        x = (osd->widget->allocation.width - OSD_CROSSHAIR_W)/2;
1596        y = (osd->widget->allocation.height - OSD_CROSSHAIR_H)/2;
1597    
1598        cairo_set_source_surface(cr, priv->crosshair.surface, x, y);
1599        cairo_paint(cr);
1600    #endif
1601    
1602    #ifdef OSD_COORDINATES
1603        x = -OSD_X;
1604        y = -OSD_Y;
1605        if(x < 0) x += osd->widget->allocation.width - OSD_COORDINATES_W;
1606        if(y < 0) y += osd->widget->allocation.height - OSD_COORDINATES_H;
1607    
1608        cairo_set_source_surface(cr, priv->coordinates.surface, x, y);
1609        cairo_paint(cr);
1610    #endif
1611    
1612        x = OSD_X;
1613        if(x < 0)
1614            x += osd->widget->allocation.width - OSD_W;
1615    
1616        y = OSD_Y;
1617        if(y < 0)
1618            y += osd->widget->allocation.height - OSD_H;
1619    
1620      cairo_set_source_surface(cr, priv->overlay, x, y);      cairo_set_source_surface(cr, priv->controls.surface, x, y);
1621      cairo_paint(cr);      cairo_paint(cr);
1622    
1623  #ifdef OSD_SOURCE_SEL  #ifdef OSD_SOURCE_SEL
1624      if(!priv->handler_id) {      if(!priv->source_sel.handler_id) {
1625          /* the OSD source selection is not being animated */          /* the OSD source selection is not being animated */
1626          if(!priv->expanded)          if(!priv->source_sel.expanded)
1627              x = osd->widget->allocation.width - OSD_S_W;              x = osd->widget->allocation.width - OSD_S_W;
1628          else          else
1629              x = osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X;              x = osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X;
1630      } else      } else
1631          x = priv->shift;          x = priv->source_sel.shift;
1632    
1633      y = OSD_S_Y;      y = OSD_S_Y;
1634      if(OSD_S_Y < 0) {      if(OSD_S_Y < 0) {
1635          if(!priv->expanded)          if(!priv->source_sel.expanded)
1636              y = osd->widget->allocation.height - OSD_S_H + OSD_S_Y;              y = osd->widget->allocation.height - OSD_S_H + OSD_S_Y;
1637          else          else
1638              y = osd->widget->allocation.height - OSD_S_EXP_H + OSD_S_Y;              y = osd->widget->allocation.height - OSD_S_EXP_H + OSD_S_Y;
1639      }      }
1640    
1641      cairo_set_source_surface(cr, priv->map_source, x, y);      cairo_set_source_surface(cr, priv->source_sel.surface, x, y);
1642      cairo_paint(cr);      cairo_paint(cr);
1643  #endif  #endif
1644    
# Line 855  osd_free(osm_gps_map_osd_t *osd) Line 1650  osd_free(osm_gps_map_osd_t *osd)
1650  {  {
1651      osd_priv_t *priv = (osd_priv_t *)(osd->priv);      osd_priv_t *priv = (osd_priv_t *)(osd->priv);
1652    
1653      if (priv->overlay)      if (priv->controls.surface)
1654           cairo_surface_destroy(priv->overlay);           cairo_surface_destroy(priv->controls.surface);
1655    
1656  #ifdef OSD_SOURCE_SEL  #ifdef OSD_SOURCE_SEL
1657      if(priv->handler_id)      if(priv->source_sel.handler_id)
1658          gtk_timeout_remove(priv->handler_id);          gtk_timeout_remove(priv->source_sel.handler_id);
1659    
1660        if (priv->source_sel.surface)
1661             cairo_surface_destroy(priv->source_sel.surface);
1662    #endif
1663    
1664      if (priv->map_source)  #ifdef OSD_SCALE
1665           cairo_surface_destroy(priv->map_source);      if (priv->scale.surface)
1666             cairo_surface_destroy(priv->scale.surface);
1667    #endif
1668    
1669    #ifdef OSD_CROSSHAIR
1670        if (priv->crosshair.surface)
1671             cairo_surface_destroy(priv->crosshair.surface);
1672    #endif
1673    
1674    #ifdef OSD_COORDINATES
1675        if (priv->coordinates.surface)
1676             cairo_surface_destroy(priv->coordinates.surface);
1677    #endif
1678    
1679    #ifdef OSD_BALLOON
1680        if (priv->balloon.surface)
1681             cairo_surface_destroy(priv->balloon.surface);
1682  #endif  #endif
1683    
1684      g_free(priv);      g_free(priv);
# Line 874  osd_busy(osm_gps_map_osd_t *osd) Line 1689  osd_busy(osm_gps_map_osd_t *osd)
1689  {  {
1690  #ifdef OSD_SOURCE_SEL  #ifdef OSD_SOURCE_SEL
1691      osd_priv_t *priv = (osd_priv_t *)(osd->priv);      osd_priv_t *priv = (osd_priv_t *)(osd->priv);
1692      return (priv->handler_id != 0);      return (priv->source_sel.handler_id != 0);
1693  #else  #else
1694      return FALSE;      return FALSE;
1695  #endif  #endif
# Line 901  osm_gps_map_osd_classic_init(OsmGpsMap * Line 1716  osm_gps_map_osd_classic_init(OsmGpsMap *
1716  {  {
1717      osd_priv_t *priv = osd_classic.priv = g_new0(osd_priv_t, 1);      osd_priv_t *priv = osd_classic.priv = g_new0(osd_priv_t, 1);
1718    
1719    #ifdef OSD_BALLOON
1720        priv->balloon.lat = OSM_GPS_MAP_INVALID;
1721        priv->balloon.lon = OSM_GPS_MAP_INVALID;
1722    #endif
1723    
1724      osd_classic.priv = priv;      osd_classic.priv = priv;
1725    
1726      osm_gps_map_register_osd(map, &osd_classic);      osm_gps_map_register_osd(map, &osd_classic);
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Removed from v.88  
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  Added in v.112