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

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revision 76 by harbaum, Mon Aug 24 19:21:46 2009 UTC revision 88 by harbaum, Mon Aug 31 14:22:28 2009 UTC
# Line 19  Line 19 
19    
20  #include "config.h"  #include "config.h"
21  #include <stdlib.h>  // abs  #include <stdlib.h>  // abs
22  #include <math.h>    // M_PI  #include <math.h>    // M_PI/cos()
23    
24  /* parameters that can be overwritten from the config file: */  /* parameters that can be overwritten from the config file: */
25  /* OSM_GPS_MAP_OSD_DIAMETER */  /* OSD_DIAMETER */
26    /* OSD_X, OSD_Y */
27    
28  #ifndef USE_CAIRO  #ifndef USE_CAIRO
29  #error "OSD control display lacks a non-cairo implementation!"  #error "OSD control display lacks a non-cairo implementation!"
# Line 38  typedef struct { Line 39  typedef struct {
39      /* the offscreen representation of the OSD */      /* the offscreen representation of the OSD */
40      cairo_surface_t *overlay;      cairo_surface_t *overlay;
41    
42      GdkColor bg, fg, da;  #ifdef OSD_SOURCE_SEL
43        /* values to handle the "source" menu */
44        cairo_surface_t *map_source;
45        gboolean expanded;
46        gint shift, dir, count;
47        gint handler_id;
48        gint width, height;
49    #endif
50    
51  } osd_priv_t;  } osd_priv_t;
52    
53  /* position and extent of bounding box */  /* position and extent of bounding box */
54    #ifndef OSD_X
55  #define OSD_X      (10)  #define OSD_X      (10)
56    #endif
57    
58    #ifndef OSD_Y
59  #define OSD_Y      (10)  #define OSD_Y      (10)
60    #endif
61    
62  /* parameters of the direction shape */  /* parameters of the direction shape */
63  #ifndef OSM_GPS_MAP_OSD_DIAMETER  #ifndef OSD_DIAMETER
64  #define D_RAD  (30)         // diameter of dpad  #define D_RAD  (30)         // diameter of dpad
65  #else  #else
66  #define D_RAD  (OSM_GPS_MAP_OSD_DIAMETER)  #define D_RAD  (OSD_DIAMETER)
67  #endif  #endif
68  #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
69  #define D_LEN  (D_RAD/4)    // length of arrow  #define D_LEN  (D_RAD/4)    // length of arrow
# Line 67  typedef struct { Line 80  typedef struct {
80  #define OSD_SHADOW (0)  #define OSD_SHADOW (0)
81  #endif  #endif
82    
83    /* normally the GPS button is in the center of the dpad. if there's */
84    /* no dpad it will go into the zoom area */
85    #if defined(OSD_GPS_BUTTON) && defined(OSD_NO_DPAD)
86    #define Z_GPS  1
87    #else
88    #define Z_GPS  0
89    #endif
90    
91  /* total width and height of controls incl. shadow */  /* total width and height of controls incl. shadow */
92  #define OSD_W    (2*D_RAD + OSD_SHADOW)  #define OSD_W    (2*D_RAD + OSD_SHADOW + Z_GPS * 2 * Z_RAD)
93    #if !Z_GPS
94  #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)
95    #else
96    #define OSD_H    (2*Z_RAD + OSD_SHADOW)
97    #endif
98    
99  #ifdef OSD_SHADOW_ENABLE  #ifdef OSD_SHADOW_ENABLE
100  #define OSD_LBL_SHADOW (OSD_SHADOW/2)  #define OSD_LBL_SHADOW (OSD_SHADOW/2)
101  #endif  #endif
102    
103  #define Z_TOP    (2 * D_RAD + Z_STEP)  #define Z_TOP    ((1-Z_GPS) * (2 * D_RAD + Z_STEP))
104    
105  #define Z_MID    (Z_TOP + Z_RAD)  #define Z_MID    (Z_TOP + Z_RAD)
106  #define Z_BOT    (Z_MID + Z_RAD)  #define Z_BOT    (Z_MID + Z_RAD)
107  #define Z_LEFT   (Z_RAD)  #define Z_LEFT   (Z_RAD)
108  #define Z_RIGHT  (2 * D_RAD - Z_RAD)  #define Z_RIGHT  (2 * D_RAD - Z_RAD + Z_GPS * 2 * Z_RAD)
109    #define Z_CENTER ((Z_RIGHT + Z_LEFT)/2)
110    
111  /* create the cairo shape used for the zoom buttons */  /* create the cairo shape used for the zoom buttons */
112  static void  static void
113  osm_gps_map_osd_zoom_shape(cairo_t *cr, gint x, gint y)  osd_zoom_shape(cairo_t *cr, gint x, gint y)
114  {  {
115      cairo_move_to (cr, x+Z_LEFT,    y+Z_TOP);      cairo_move_to (cr, x+Z_LEFT,    y+Z_TOP);
116      cairo_line_to (cr, x+Z_RIGHT,   y+Z_TOP);      cairo_line_to (cr, x+Z_RIGHT,   y+Z_TOP);
# Line 93  osm_gps_map_osd_zoom_shape(cairo_t *cr, Line 119  osm_gps_map_osd_zoom_shape(cairo_t *cr,
119      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);
120  }  }
121    
122    /* ------------------- color/shadow functions ----------------- */
123    
124    #ifndef OSD_COLOR
125    /* if no color has been specified we just use the gdks default colors */
126    static void
127    osd_labels(cairo_t *cr, gint width, gboolean enabled,
128                           GdkColor *fg, GdkColor *disabled) {
129        if(enabled)  gdk_cairo_set_source_color(cr, fg);
130        else         gdk_cairo_set_source_color(cr, disabled);
131        cairo_set_line_width (cr, width);
132    }
133    #else
134    static void
135    osd_labels(cairo_t *cr, gint width, gboolean enabled) {
136        if(enabled)  cairo_set_source_rgb (cr, OSD_COLOR);
137        else         cairo_set_source_rgb (cr, OSD_COLOR_DISABLED);
138        cairo_set_line_width (cr, width);
139    }
140    #endif
141    
142    #ifdef OSD_SHADOW_ENABLE
143    static void
144    osd_labels_shadow(cairo_t *cr, gint width, gboolean enabled) {
145        cairo_set_source_rgba (cr, 0, 0, 0, enabled?0.3:0.15);
146        cairo_set_line_width (cr, width);
147    }
148    #endif
149    
150  #ifndef OSD_NO_DPAD  #ifndef OSD_NO_DPAD
151  /* create the cairo shape used for the dpad */  /* create the cairo shape used for the dpad */
152  static void  static void
153  osm_gps_map_osd_dpad_shape(cairo_t *cr, gint x, gint y)  osd_dpad_shape(cairo_t *cr, gint x, gint y)
154  {  {
155      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);
156  }  }
157  #endif  #endif
158    
159    #ifdef OSD_SHADOW_ENABLE
160    static void
161    osd_shape_shadow(cairo_t *cr) {
162        cairo_set_source_rgba (cr, 0, 0, 0, 0.2);
163        cairo_fill (cr);
164        cairo_stroke (cr);
165    }
166    #endif
167    
168    #ifndef OSD_COLOR
169    /* if no color has been specified we just use the gdks default colors */
170    static void
171    osd_shape(cairo_t *cr, GdkColor *bg, GdkColor *fg) {
172        gdk_cairo_set_source_color(cr, bg);
173        cairo_fill_preserve (cr);
174        gdk_cairo_set_source_color(cr, fg);
175        cairo_set_line_width (cr, 1);
176        cairo_stroke (cr);
177    }
178    #else
179    static void
180    osd_shape(cairo_t *cr) {
181        cairo_set_source_rgb (cr, OSD_COLOR_BG);
182        cairo_fill_preserve (cr);
183        cairo_set_source_rgb (cr, OSD_COLOR);
184        cairo_set_line_width (cr, 1);
185        cairo_stroke (cr);
186    }
187    #endif
188    
189    
190  static gboolean  static gboolean
191  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)
192  {  {
# Line 111  osm_gps_map_in_circle(gint x, gint y, gi Line 196  osm_gps_map_in_circle(gint x, gint y, gi
196  #ifndef OSD_NO_DPAD  #ifndef OSD_NO_DPAD
197  /* check whether x/y is within the dpad */  /* check whether x/y is within the dpad */
198  static osd_button_t  static osd_button_t
199  osm_gps_map_osd_check_dpad(gint x, gint y)  osd_check_dpad(gint x, gint y)
200  {  {
201      /* within entire dpad circle */      /* within entire dpad circle */
202      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))
203      {      {
204          /* convert into position relative to dpads centre */          /* convert into position relative to dpads centre */
205          x -= (OSD_X + D_RAD);          x -= D_RAD;
206          y -= (OSD_Y + D_RAD);          y -= D_RAD;
207    
208  #ifdef OSD_GPS_BUTTON  #ifdef OSD_GPS_BUTTON
209          /* check for dpad center goes here! */          /* check for dpad center goes here! */
# Line 146  osm_gps_map_osd_check_dpad(gint x, gint Line 231  osm_gps_map_osd_check_dpad(gint x, gint
231    
232  /* check whether x/y is within the zoom pads */  /* check whether x/y is within the zoom pads */
233  static osd_button_t  static osd_button_t
234  osm_gps_map_osd_check_zoom(gint x, gint y) {  osd_check_zoom(gint x, gint y) {
235      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) {
236    
237          /* within circle around (-) label */          /* within circle around (-) label */
238          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)  
239              return OSD_OUT;              return OSD_OUT;
240    
241          /* within circle around (+) label */          /* within circle around (+) label */
242          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))
243              return OSD_IN;              return OSD_IN;
244    
245    #if Z_GPS == 1
246            /* within square around center */
247            if( x > Z_CENTER - Z_RAD && x < Z_CENTER + Z_RAD)
248                return OSD_GPS;
249    #endif
250    
251            /* between center of (-) button and center of entire zoom control area */
252            if(x > OSD_LEFT && x < D_RAD)
253                return OSD_OUT;
254    
255          /* between center of (+) button and center of entire zoom control area */          /* between center of (+) button and center of entire zoom control area */
256          if(x < OSD_RIGHT && x > OSD_X + D_RAD)          if(x < OSD_RIGHT && x > D_RAD)
257              return OSD_IN;              return OSD_IN;
258      }      }
259    
260      return OSD_NONE;      return OSD_NONE;
261  }  }
262    
263  static osd_button_t  #ifdef OSD_SOURCE_SEL
 osm_gps_map_osd_check(gint x, gint y) {  
     osd_button_t but = OSD_NONE;  
264    
265      /* first do a rough test for the OSD area. */  /* place source selection at right border */
266      /* this is just to avoid an unnecessary detailed test */  #define OSD_S_RAD (Z_RAD)
267      if(x > OSD_X && x < OSD_X + OSD_W &&  #define OSD_S_X   (-OSD_X)
268         y > OSD_Y && y < OSD_Y + OSD_H) {  #define OSD_S_Y   (OSD_Y)
269  #ifndef OSD_NO_DPAD  #define OSD_S_PW  (2 * Z_RAD)
270          but = osm_gps_map_osd_check_dpad(x, y);  #define OSD_S_W   (OSD_S_PW)
271    #define OSD_S_PH  (2 * Z_RAD)
272    #define OSD_S_H   (OSD_S_PH + OSD_SHADOW)
273    
274    /* size of usable area when expanded */
275    #define OSD_S_AREA_W (priv->width)
276    #define OSD_S_AREA_H (priv->height)
277    #define OSD_S_EXP_W  (OSD_S_PW + OSD_S_AREA_W + OSD_SHADOW)
278    #define OSD_S_EXP_H  (OSD_S_AREA_H + OSD_SHADOW)
279    
280    /* internal value to draw the arrow on the "puller" */
281    #define OSD_S_D0  (OSD_S_RAD/2)
282    #ifndef OSD_FONT_SIZE
283    #define OSD_FONT_SIZE 16.0
284  #endif  #endif
285    #define OSD_TEXT_BORDER   (OSD_FONT_SIZE/2)
286    #define OSD_TEXT_SKIP     (OSD_FONT_SIZE/8)
287    
288          if(but == OSD_NONE)  /* draw the shape of the source selection OSD, either only the puller (not expanded) */
289              but = osm_gps_map_osd_check_zoom(x, y);  /* or the entire menu incl. the puller (expanded) */
290    static void
291    osd_source_shape(osd_priv_t *priv, cairo_t *cr, gint x, gint y) {
292        if(!priv->expanded) {
293            /* just draw the puller */
294            cairo_move_to (cr, x + OSD_S_PW, y + OSD_S_PH);
295            cairo_arc (cr, x+OSD_S_RAD, y+OSD_S_RAD, OSD_S_RAD, M_PI/2, -M_PI/2);
296            cairo_line_to (cr, x + OSD_S_PW, y);
297        } else {
298            /* draw the puller and the area itself */
299            cairo_move_to (cr, x + OSD_S_PW + OSD_S_AREA_W, y + OSD_S_AREA_H);
300            cairo_line_to (cr, x + OSD_S_PW, y + OSD_S_AREA_H);
301            if(OSD_S_Y > 0) {
302                cairo_line_to (cr, x + OSD_S_PW, y + OSD_S_PH);
303                cairo_arc (cr, x+OSD_S_RAD, y+OSD_S_RAD, OSD_S_RAD, M_PI/2, -M_PI/2);
304            } else {
305                cairo_arc (cr, x+OSD_S_RAD, y+OSD_S_AREA_H-OSD_S_RAD, OSD_S_RAD, M_PI/2, -M_PI/2);
306                cairo_line_to (cr, x + OSD_S_PW, y + OSD_S_AREA_H - OSD_S_PH);
307                cairo_line_to (cr, x + OSD_S_PW, y);
308            }
309            cairo_line_to (cr, x + OSD_S_PW + OSD_S_AREA_W, y);
310            cairo_close_path (cr);
311      }      }
312    }
313    
314      return but;  static void
315    osd_source_content(osm_gps_map_osd_t *osd, cairo_t *cr, gint offset) {
316        osd_priv_t *priv = (osd_priv_t*)osd->priv;
317    
318        int py = offset + OSD_S_RAD - OSD_S_D0;
319    
320        if(!priv->expanded) {
321            /* draw the "puller" open (<) arrow */
322            cairo_move_to (cr, offset + OSD_S_RAD + OSD_S_D0/2, py);
323            cairo_rel_line_to (cr, -OSD_S_D0, +OSD_S_D0);
324            cairo_rel_line_to (cr, +OSD_S_D0, +OSD_S_D0);
325        } else {
326            if(OSD_S_Y < 0)
327                py += OSD_S_AREA_H - OSD_S_PH;
328    
329            /* draw the "puller" close (>) arrow */
330            cairo_move_to (cr, offset + OSD_S_RAD - OSD_S_D0/2, py);
331            cairo_rel_line_to (cr, +OSD_S_D0, +OSD_S_D0);
332            cairo_rel_line_to (cr, -OSD_S_D0, +OSD_S_D0);
333            cairo_stroke(cr);
334    
335            /* don't draw a shadow for the text content */
336            if(offset == 1) {
337                gint source;
338                g_object_get(osd->widget, "map-source", &source, NULL);
339    
340                cairo_select_font_face (cr, "Sans",
341                                        CAIRO_FONT_SLANT_NORMAL,
342                                        CAIRO_FONT_WEIGHT_BOLD);
343                cairo_set_font_size (cr, OSD_FONT_SIZE);
344    
345                int i, step = (priv->height - 2*OSD_TEXT_BORDER)
346                    / OSM_GPS_MAP_SOURCE_LAST;
347                for(i=OSM_GPS_MAP_SOURCE_NULL+1;i<=OSM_GPS_MAP_SOURCE_LAST;i++) {
348                    cairo_text_extents_t extents;
349                    const char *src = osm_gps_map_source_get_friendly_name(i);
350                    cairo_text_extents (cr, src, &extents);
351    
352                    int x = offset + OSD_S_PW + OSD_TEXT_BORDER;
353                    int y = offset + step * (i-1) + OSD_TEXT_BORDER;
354    
355                    /* draw filled rectangle if selected */
356                    if(source == i) {
357                        cairo_rectangle(cr, x - OSD_TEXT_BORDER/2,
358                                        y - OSD_TEXT_SKIP,
359                                        priv->width - OSD_TEXT_BORDER,
360                                        step + OSD_TEXT_SKIP);
361                        cairo_fill(cr);
362    
363                        /* temprarily draw with background color */
364    #ifndef OSD_COLOR
365                        GdkColor bg = osd->widget->style->bg[GTK_STATE_NORMAL];
366                        gdk_cairo_set_source_color(cr, &bg);
367    #else
368                        cairo_set_source_rgb (cr, OSD_COLOR_BG);
369    #endif
370                    }
371    
372                    cairo_move_to (cr, x, y + OSD_TEXT_SKIP - extents.y_bearing);
373                    cairo_show_text (cr, src);
374    
375                    /* restore color */
376                    if(source == i) {
377    #ifndef OSD_COLOR
378                        GdkColor fg = osd->widget->style->fg[GTK_STATE_NORMAL];
379                        gdk_cairo_set_source_color(cr, &fg);
380    #else
381                        cairo_set_source_rgb (cr, OSD_COLOR);
382    #endif
383                    }
384                }
385            }
386        }
387  }  }
388    
389    static void
390    osd_render_source_sel(osm_gps_map_osd_t *osd) {
391        osd_priv_t *priv = (osd_priv_t*)osd->priv;
392    
393    #ifndef OSD_COLOR
394        GdkColor bg = GTK_WIDGET(osd->widget)->style->bg[GTK_STATE_NORMAL];
395        GdkColor fg = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_NORMAL];
396        GdkColor da = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_INSENSITIVE];
397    #endif
398    
399        /* draw source selector */
400        cairo_t *cr = cairo_create(priv->map_source);
401        cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
402        cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0);
403        cairo_paint(cr);
404        cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
405    
406  #ifdef OSD_SHADOW_ENABLE  #ifdef OSD_SHADOW_ENABLE
407  static void      osd_source_shape(priv, cr, 1+OSD_SHADOW, 1+OSD_SHADOW);
408  osm_gps_map_osd_shape_shadow(cairo_t *cr) {      osd_shape_shadow(cr);
     cairo_set_source_rgba (cr, 0, 0, 0, 0.2);  
     cairo_fill (cr);  
     cairo_stroke (cr);  
 }  
409  #endif  #endif
410    
411        osd_source_shape(priv, cr, 1, 1);
412  #ifndef OSD_COLOR  #ifndef OSD_COLOR
413  /* if no color has been specified we just use the gdks default colors */      osd_shape(cr, &bg, &fg);
414  static void  #else
415  osm_gps_map_osd_shape(cairo_t *cr, GdkColor *bg, GdkColor *fg) {      osd_shape(cr);
416      gdk_cairo_set_source_color(cr, bg);  #endif
417      cairo_fill_preserve (cr);  
418      gdk_cairo_set_source_color(cr, fg);  #ifdef OSD_SHADOW_ENABLE
419      cairo_set_line_width (cr, 1);      osd_labels_shadow(cr, Z_RAD/3, TRUE);
420        osd_source_content(osd, cr, 1+OSD_LBL_SHADOW);
421      cairo_stroke (cr);      cairo_stroke (cr);
422  }  #endif
423    #ifndef OSD_COLOR
424        osd_labels(cr, Z_RAD/3, TRUE, &fg, &da);
425  #else  #else
426  static void      osd_labels(cr, Z_RAD/3, TRUE);
427  osm_gps_map_osd_shape(cairo_t *cr) {  #endif
428      cairo_set_source_rgb (cr, OSD_COLOR_BG);      osd_source_content(osd, cr, 1);
     cairo_fill_preserve (cr);  
     cairo_set_source_rgb (cr, OSD_COLOR);  
     cairo_set_line_width (cr, 1);  
429      cairo_stroke (cr);      cairo_stroke (cr);
430    
431        cairo_destroy(cr);
432    }
433    
434    static void
435    osd_source_reallocate(osm_gps_map_osd_t *osd) {
436        osd_priv_t *priv = (osd_priv_t*)osd->priv;
437    
438        /* re-allocate offscreen bitmap */
439        g_assert (priv->map_source);
440    
441        int w = OSD_S_W, h = OSD_S_H;
442        if(priv->expanded) {
443            /* ... and right of it the waypoint id */
444            cairo_text_extents_t extents;
445    
446            /* determine content size */
447            cairo_t *cr = cairo_create(priv->map_source);
448            cairo_select_font_face (cr, "Sans",
449                                    CAIRO_FONT_SLANT_NORMAL,
450                                    CAIRO_FONT_WEIGHT_BOLD);
451            cairo_set_font_size (cr, OSD_FONT_SIZE);
452    
453            /* calculate menu size */
454            int i, max_h = 0, max_w = 0;
455            for(i=OSM_GPS_MAP_SOURCE_NULL+1;i<=OSM_GPS_MAP_SOURCE_LAST;i++) {
456                const char *src = osm_gps_map_source_get_friendly_name(i);
457                cairo_text_extents (cr, src, &extents);
458    
459                //            printf("Source %d: %s = %f %f\n", i, src,
460                //                   extents.width, extents.height);
461    
462                if(extents.width > max_w) max_w = extents.width;
463                if(extents.height > max_h) max_h = extents.height;
464            }
465            cairo_destroy(cr);
466    
467            priv->width  = max_w + 2*OSD_TEXT_BORDER;
468            priv->height = OSM_GPS_MAP_SOURCE_LAST *
469                (max_h + 2*OSD_TEXT_SKIP) + 2*OSD_TEXT_BORDER;
470    
471            w = OSD_S_EXP_W;
472            h = OSD_S_EXP_H;
473        }
474    
475        cairo_surface_destroy(priv->map_source);
476        priv->map_source =
477            cairo_image_surface_create(CAIRO_FORMAT_ARGB32, w+2, h+2);
478    
479        osd_render_source_sel(osd);
480    
481    }
482    
483    #define OSD_HZ      15
484    #define OSD_TIME    500
485    
486    static gboolean osd_source_animate(gpointer data) {
487        osm_gps_map_osd_t *osd = (osm_gps_map_osd_t*)data;
488        osd_priv_t *priv = (osd_priv_t*)osd->priv;
489        int diff = OSD_S_EXP_W - OSD_S_W - OSD_S_X;
490        gboolean done = FALSE;
491        priv->count += priv->dir;
492    
493        /* shifting in */
494        if(priv->dir < 0) {
495            if(priv->count <= 0) {
496                priv->count = 0;
497                done = TRUE;
498            }
499        } else {
500            if(priv->count >= 1000) {
501                priv->expanded = FALSE;
502                osd_source_reallocate(osd);
503    
504                priv->count = 1000;
505                done = TRUE;
506            }
507        }
508    
509    
510        /* count runs linearly from 0 to 1000, map this nicely onto a position */
511    
512        /* simple linear mapping */
513        //    priv->shift = (osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X) +
514        //        (diff * priv->count)/1000;
515    
516        /* nicer sinoid mapping */
517        float m = 0.5-cos(priv->count * M_PI / 1000.0)/2;
518        priv->shift = (osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X) +
519            m * diff;
520    
521        osm_gps_map_repaint(OSM_GPS_MAP(osd->widget));
522    
523        if(done)
524            priv->handler_id = 0;
525    
526        return !done;
527    }
528    
529    /* switch between expand and collapse mode of source selection */
530    static void
531    osd_source_toggle(osm_gps_map_osd_t *osd)
532    {
533        osd_priv_t *priv = (osd_priv_t*)osd->priv;
534    
535        /* ignore clicks while animation is running */
536        if(priv->handler_id)
537            return;
538    
539        /* expand immediately, collapse is handle at the end of the collapse animation */
540        if(!priv->expanded) {
541            priv->expanded = TRUE;
542            osd_source_reallocate(osd);
543    
544            priv->count = 1000;
545            priv->shift = osd->widget->allocation.width - OSD_S_W;
546            priv->dir = -1000/OSD_HZ;
547        } else {
548            priv->count =  0;
549            priv->shift = osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X;
550            priv->dir = +1000/OSD_HZ;
551        }
552    
553        priv->handler_id = gtk_timeout_add(OSD_TIME/OSD_HZ, osd_source_animate, osd);
554    }
555    
556    static osd_button_t
557    osd_source_check(osm_gps_map_osd_t *osd, gint x, gint y) {
558        osd_priv_t *priv = (osd_priv_t*)osd->priv;
559    
560        if(!priv->expanded)
561            x -= osd->widget->allocation.width - OSD_S_W;
562        else
563            x -= osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X;
564    
565        if(OSD_S_Y > 0)
566            y -= OSD_S_Y;
567        else
568            y -= osd->widget->allocation.height - OSD_S_PH + OSD_S_Y;
569    
570        /* within square around puller? */
571        if(y > 0 && y < OSD_S_PH && x > 0 && x < OSD_S_PW) {
572            /* really within puller shape? */
573            if(x > Z_RAD || osm_gps_map_in_circle(x, y, Z_RAD, Z_RAD, Z_RAD)) {
574                /* expand source selector */
575                osd_source_toggle(osd);
576    
577                /* tell upper layers that user clicked some background element */
578                /* of the OSD */
579                return OSD_BG;
580            }
581        }
582    
583        /* check for clicks into data area */
584        if(priv->expanded) {
585            if(x > OSD_S_PW &&
586               x < OSD_S_PW + OSD_S_EXP_W &&
587               y > 0 &&
588               y < OSD_S_EXP_H) {
589    
590                printf("in OSD source menu area\n");
591    
592                return OSD_BG;
593            }
594        }
595    
596        return OSD_NONE;
597  }  }
598    #endif // OSD_SOURCE_SEL
599    
600    static osd_button_t
601    osd_check(osm_gps_map_osd_t *osd, gint x, gint y) {
602        osd_button_t but = OSD_NONE;
603    
604    #ifdef OSD_SOURCE_SEL
605        /* the source selection area is handles internally */
606        but = osd_source_check(osd, x, y);
607        if(but != OSD_NONE)
608            return but;
609  #endif  #endif
610    
611        x -= OSD_X;
612        y -= OSD_Y;
613    
614        if(OSD_X < 0)
615            x -= (osd->widget->allocation.width - OSD_W);
616    
617        if(OSD_Y < 0)
618            y -= (osd->widget->allocation.height - OSD_H);
619    
620        /* first do a rough test for the OSD area. */
621        /* this is just to avoid an unnecessary detailed test */
622        if(x > 0 && x < OSD_W && y > 0 && y < OSD_H) {
623    #ifndef OSD_NO_DPAD
624            but = osd_check_dpad(x, y);
625    #endif
626    
627            if(but == OSD_NONE)
628                but = osd_check_zoom(x, y);
629        }
630    
631        return but;
632    }
633    
634  #ifndef OSD_NO_DPAD  #ifndef OSD_NO_DPAD
635  static void  static void
636  osm_gps_map_osd_dpad_labels(cairo_t *cr, gint x, gint y) {  osd_dpad_labels(cairo_t *cr, gint x, gint y) {
637      /* move reference to dpad center */      /* move reference to dpad center */
638      x += D_RAD;      x += D_RAD;
639      y += D_RAD;      y += D_RAD;
# Line 247  osm_gps_map_osd_dpad_labels(cairo_t *cr, Line 660  osm_gps_map_osd_dpad_labels(cairo_t *cr,
660    
661  #ifdef OSD_GPS_BUTTON  #ifdef OSD_GPS_BUTTON
662  /* draw the satellite dish icon in the center of the dpad */  /* draw the satellite dish icon in the center of the dpad */
663  #define GPS_V0  (D_RAD/8)  #define GPS_V0  (D_RAD/7)
664  #define GPS_V1  (D_RAD/10)  #define GPS_V1  (D_RAD/10)
665  #define GPS_V2  (D_RAD/5)  #define GPS_V2  (D_RAD/5)
666    
667  /* draw a satellite receiver dish */  /* draw a satellite receiver dish */
668    /* this is either drawn in the center of the dpad (if present) */
669    /* or in the middle of the zoom area */
670  static void  static void
671  osm_gps_map_osd_dpad_gps(cairo_t *cr, gint x, gint y) {  osd_dpad_gps(cairo_t *cr, gint x, gint y) {
672      /* move reference to dpad center */      /* move reference to dpad center */
673      x += D_RAD;      x += (1-Z_GPS) * D_RAD + Z_GPS * Z_RAD * 3;
674      y += D_RAD + GPS_V0;      y += (1-Z_GPS) * D_RAD + Z_GPS * Z_RAD + GPS_V0;
675    
676      cairo_move_to (cr, x-GPS_V0, y+GPS_V0);      cairo_move_to (cr, x-GPS_V0, y+GPS_V0);
677      cairo_rel_line_to (cr, +GPS_V0, -GPS_V0);      cairo_rel_line_to (cr, +GPS_V0, -GPS_V0);
# Line 276  osm_gps_map_osd_dpad_gps(cairo_t *cr, gi Line 691  osm_gps_map_osd_dpad_gps(cairo_t *cr, gi
691  #define Z_LEN  (2*Z_RAD/3)  #define Z_LEN  (2*Z_RAD/3)
692    
693  static void  static void
694  osm_gps_map_osd_zoom_labels(cairo_t *cr, gint x, gint y) {  osd_zoom_labels(cairo_t *cr, gint x, gint y) {
695      cairo_move_to (cr, x + Z_LEFT  - Z_LEN, y + Z_MID);      cairo_move_to (cr, x + Z_LEFT  - Z_LEN, y + Z_MID);
696      cairo_line_to (cr, x + Z_LEFT  + Z_LEN, y + Z_MID);      cairo_line_to (cr, x + Z_LEFT  + Z_LEN, y + Z_MID);
697    
# Line 286  osm_gps_map_osd_zoom_labels(cairo_t *cr, Line 701  osm_gps_map_osd_zoom_labels(cairo_t *cr,
701      cairo_line_to (cr, x + Z_RIGHT + Z_LEN, y + Z_MID);      cairo_line_to (cr, x + Z_RIGHT + Z_LEN, y + Z_MID);
702  }  }
703    
 #ifndef OSD_COLOR  
 /* if no color has been specified we just use the gdks default colors */  
704  static void  static void
705  osm_gps_map_osd_labels(cairo_t *cr, gint width, gboolean enabled,  osd_render(osm_gps_map_osd_t *osd) {
706                         GdkColor *fg, GdkColor *disabled) {      osd_priv_t *priv = (osd_priv_t*)osd->priv;
     if(enabled)  gdk_cairo_set_source_color(cr, fg);  
     else         gdk_cairo_set_source_color(cr, disabled);  
     cairo_set_line_width (cr, width);  
     cairo_stroke (cr);  
 }  
 #else  
 static void  
 osm_gps_map_osd_labels(cairo_t *cr, gint width, gboolean enabled) {  
     if(enabled)  cairo_set_source_rgb (cr, OSD_COLOR);  
     else         cairo_set_source_rgb (cr, OSD_COLOR_DISABLED);  
     cairo_set_line_width (cr, width);  
     cairo_stroke (cr);  
 }  
 #endif  
707    
708  #ifdef OSD_SHADOW_ENABLE  #ifndef OSD_COLOR
709  static void      GdkColor bg = GTK_WIDGET(osd->widget)->style->bg[GTK_STATE_NORMAL];
710  osm_gps_map_osd_labels_shadow(cairo_t *cr, gint width, gboolean enabled) {      GdkColor fg = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_NORMAL];
711      cairo_set_source_rgba (cr, 0, 0, 0, enabled?0.3:0.15);      GdkColor da = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_INSENSITIVE];
     cairo_set_line_width (cr, width);  
     cairo_stroke (cr);  
 }  
712  #endif  #endif
713    
 static void  
 osm_gps_map_osd_render(osm_gps_map_osd_t *osd) {  
     osd_priv_t *priv = (osd_priv_t*)osd->priv;  
   
714      /* first fill with transparency */      /* first fill with transparency */
715      cairo_t *cr = cairo_create(priv->overlay);      cairo_t *cr = cairo_create(priv->overlay);
716      cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);      cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
717      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);
718      cairo_paint(cr);      cairo_paint(cr);
   
719      cairo_set_operator(cr, CAIRO_OPERATOR_OVER);      cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
720    
721      /* --------- draw zoom and dpad shape shadow ----------- */      /* --------- draw zoom and dpad shape shadow ----------- */
     gint x = 0, y = 0;  
   
722  #ifdef OSD_SHADOW_ENABLE  #ifdef OSD_SHADOW_ENABLE
723      osm_gps_map_osd_zoom_shape(cr, x + OSD_SHADOW, y + OSD_SHADOW);      osd_zoom_shape(cr, 1+OSD_SHADOW, 1+OSD_SHADOW);
724      osm_gps_map_osd_shape_shadow(cr);      osd_shape_shadow(cr);
725  #ifndef OSD_NO_DPAD  #ifndef OSD_NO_DPAD
726      osm_gps_map_osd_dpad_shape(cr, x + OSD_SHADOW, y + OSD_SHADOW);      osd_dpad_shape(cr, 1+OSD_SHADOW, 1+OSD_SHADOW);
727      osm_gps_map_osd_shape_shadow(cr);      osd_shape_shadow(cr);
728  #endif  #endif
729  #endif  #endif
730    
731      /* --------- draw zoom and dpad shape ----------- */      /* --------- draw zoom and dpad shape ----------- */
732    
733      osm_gps_map_osd_zoom_shape(cr, x, y);      osd_zoom_shape(cr, 1, 1);
734  #ifndef OSD_COLOR  #ifndef OSD_COLOR
735      osm_gps_map_osd_shape(cr, &priv->bg, &priv->fg);      osd_shape(cr, &bg, &fg);
736  #else  #else
737      osm_gps_map_osd_shape(cr);      osd_shape(cr);
738  #endif  #endif
739  #ifndef OSD_NO_DPAD  #ifndef OSD_NO_DPAD
740      osm_gps_map_osd_dpad_shape(cr, x, y);      osd_dpad_shape(cr, 1, 1);
741  #ifndef OSD_COLOR  #ifndef OSD_COLOR
742      osm_gps_map_osd_shape(cr, &priv->bg, &priv->fg);      osd_shape(cr, &bg, &fg);
743  #else  #else
744      osm_gps_map_osd_shape(cr);      osd_shape(cr);
745  #endif  #endif
746  #endif  #endif
747    
748      /* --------- draw zoom and dpad labels --------- */      /* --------- draw zoom and dpad labels --------- */
749    
750  #ifdef OSD_SHADOW_ENABLE  #ifdef OSD_SHADOW_ENABLE
751      osm_gps_map_osd_zoom_labels(cr, x + OSD_LBL_SHADOW, y + OSD_LBL_SHADOW);      osd_labels_shadow(cr, Z_RAD/3, TRUE);
752        osd_zoom_labels(cr, 1+OSD_LBL_SHADOW, 1+OSD_LBL_SHADOW);
753  #ifndef OSD_NO_DPAD  #ifndef OSD_NO_DPAD
754      osm_gps_map_osd_dpad_labels(cr, x + OSD_LBL_SHADOW, y + OSD_LBL_SHADOW);      osd_dpad_labels(cr, 1+OSD_LBL_SHADOW, 1+OSD_LBL_SHADOW);
755  #endif  #endif
756      osm_gps_map_osd_labels_shadow(cr, Z_RAD/3, TRUE);      cairo_stroke(cr);
757  #ifdef OSD_GPS_BUTTON  #ifdef OSD_GPS_BUTTON
758      osm_gps_map_osd_dpad_gps(cr, x + OSD_LBL_SHADOW, y + OSD_LBL_SHADOW);      osd_labels_shadow(cr, Z_RAD/6, osd->cb != NULL);
759      osm_gps_map_osd_labels_shadow(cr, Z_RAD/6, osd->cb != NULL);      osd_dpad_gps(cr, 1+OSD_LBL_SHADOW, 1+OSD_LBL_SHADOW);
760        cairo_stroke(cr);
761  #endif  #endif
762  #endif  #endif
763    
     osm_gps_map_osd_zoom_labels(cr, x, y);  
 #ifndef OSD_NO_DPAD  
     osm_gps_map_osd_dpad_labels(cr, x, y);  
 #endif  
764  #ifndef OSD_COLOR  #ifndef OSD_COLOR
765      osm_gps_map_osd_labels(cr, Z_RAD/3, TRUE, &priv->fg, &priv->da);      osd_labels(cr, Z_RAD/3, TRUE, &fg, &da);
766  #else  #else
767      osm_gps_map_osd_labels(cr, Z_RAD/3, TRUE);      osd_labels(cr, Z_RAD/3, TRUE);
768  #endif  #endif
769  #ifdef OSD_GPS_BUTTON      osd_zoom_labels(cr, 1, 1);
770      osm_gps_map_osd_dpad_gps(cr, x, y);  #ifndef OSD_NO_DPAD
771        osd_dpad_labels(cr, 1, 1);
772    #endif
773        cairo_stroke(cr);
774    
775  #ifndef OSD_COLOR  #ifndef OSD_COLOR
776      osm_gps_map_osd_labels(cr, Z_RAD/6, osd->cb != NULL, &priv->fg, &priv->da);      osd_labels(cr, Z_RAD/6, osd->cb != NULL, &fg, &da);
777  #else  #else
778      osm_gps_map_osd_labels(cr, Z_RAD/6, osd->cb != NULL);      osd_labels(cr, Z_RAD/6, osd->cb != NULL);
779  #endif  #endif
780    #ifdef OSD_GPS_BUTTON
781        osd_dpad_gps(cr, 1, 1);
782  #endif  #endif
783        cairo_stroke(cr);
784    
785      cairo_destroy(cr);      cairo_destroy(cr);
786    
787    #ifdef OSD_SOURCE_SEL
788        osd_render_source_sel(osd);
789    #endif
790  }  }
791    
792  static void  static void
793  osm_gps_map_osd_draw(osm_gps_map_osd_t *osd, GdkDrawable *drawable)  osd_draw(osm_gps_map_osd_t *osd, GdkDrawable *drawable)
794  {  {
795      osd_priv_t *priv = (osd_priv_t*)osd->priv;      osd_priv_t *priv = (osd_priv_t*)osd->priv;
796    
# Line 401  osm_gps_map_osd_draw(osm_gps_map_osd_t * Line 799  osm_gps_map_osd_draw(osm_gps_map_osd_t *
799      if(!priv->overlay) {      if(!priv->overlay) {
800          /* create overlay ... */          /* create overlay ... */
801          priv->overlay =          priv->overlay =
802              cairo_image_surface_create(CAIRO_FORMAT_ARGB32, OSD_W, OSD_H);              cairo_image_surface_create(CAIRO_FORMAT_ARGB32, OSD_W+2, OSD_H+2);
803    
804    #ifdef OSD_SOURCE_SEL
805            /* the initial OSD state is alway not-expanded */
806            priv->map_source =
807                cairo_image_surface_create(CAIRO_FORMAT_ARGB32,
808                                               OSD_S_W+2, OSD_S_H+2);
809    #endif
810    
811          /* ... and render it */          /* ... and render it */
812          osm_gps_map_osd_render(osd);          osd_render(osd);
813      }      }
814    
815      // now draw this onto the original context      // now draw this onto the original context
816      cairo_t *cr = gdk_cairo_create(drawable);      cairo_t *cr = gdk_cairo_create(drawable);
817      cairo_set_source_surface(cr, priv->overlay, OSD_X, OSD_Y);  
818        int x = OSD_X, y = OSD_Y;
819        if(OSD_X < 0)
820            x = osd->widget->allocation.width - OSD_W + OSD_X;
821    
822        if(OSD_Y < 0)
823            y = osd->widget->allocation.height - OSD_H + OSD_Y;
824    
825        cairo_set_source_surface(cr, priv->overlay, x, y);
826        cairo_paint(cr);
827    
828    #ifdef OSD_SOURCE_SEL
829        if(!priv->handler_id) {
830            /* the OSD source selection is not being animated */
831            if(!priv->expanded)
832                x = osd->widget->allocation.width - OSD_S_W;
833            else
834                x = osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X;
835        } else
836            x = priv->shift;
837    
838        y = OSD_S_Y;
839        if(OSD_S_Y < 0) {
840            if(!priv->expanded)
841                y = osd->widget->allocation.height - OSD_S_H + OSD_S_Y;
842            else
843                y = osd->widget->allocation.height - OSD_S_EXP_H + OSD_S_Y;
844        }
845    
846        cairo_set_source_surface(cr, priv->map_source, x, y);
847      cairo_paint(cr);      cairo_paint(cr);
848    #endif
849    
850      cairo_destroy(cr);      cairo_destroy(cr);
851  }  }
852    
853  static void  static void
854  osm_gps_map_osd_free(osm_gps_map_osd_t *osd)  osd_free(osm_gps_map_osd_t *osd)
855  {  {
856      osd_priv_t *priv = (osd_priv_t *)(osd->priv);      osd_priv_t *priv = (osd_priv_t *)(osd->priv);
857    
858      if (priv->overlay)      if (priv->overlay)
859           cairo_surface_destroy(priv->overlay);           cairo_surface_destroy(priv->overlay);
860    
861    #ifdef OSD_SOURCE_SEL
862        if(priv->handler_id)
863            gtk_timeout_remove(priv->handler_id);
864    
865        if (priv->map_source)
866             cairo_surface_destroy(priv->map_source);
867    #endif
868    
869      g_free(priv);      g_free(priv);
870  }  }
871    
872    static gboolean
873    osd_busy(osm_gps_map_osd_t *osd)
874    {
875    #ifdef OSD_SOURCE_SEL
876        osd_priv_t *priv = (osd_priv_t *)(osd->priv);
877        return (priv->handler_id != 0);
878    #else
879        return FALSE;
880    #endif
881    }
882    
883  static osm_gps_map_osd_t osd_classic = {  static osm_gps_map_osd_t osd_classic = {
884      .draw       = osm_gps_map_osd_draw,      .widget     = NULL,
885      .check      = osm_gps_map_osd_check,  
886      .render     = osm_gps_map_osd_render,      .draw       = osd_draw,
887      .free       = osm_gps_map_osd_free,      .check      = osd_check,
888        .render     = osd_render,
889        .free       = osd_free,
890        .busy       = osd_busy,
891    
892      .cb         = NULL,      .cb         = NULL,
893      .data       = NULL,      .data       = NULL,
# Line 444  osm_gps_map_osd_classic_init(OsmGpsMap * Line 903  osm_gps_map_osd_classic_init(OsmGpsMap *
903    
904      osd_classic.priv = priv;      osd_classic.priv = priv;
905    
     /* extract style info from the widget */  
     priv->bg = GTK_WIDGET(map)->style->bg[GTK_STATE_NORMAL];  
     priv->fg = GTK_WIDGET(map)->style->fg[GTK_STATE_NORMAL];  
     priv->da = GTK_WIDGET(map)->style->fg[GTK_STATE_INSENSITIVE];  
   
906      osm_gps_map_register_osd(map, &osd_classic);      osm_gps_map_register_osd(map, &osd_classic);
907  }  }
908    
# Line 458  osm_gps_map_osd_classic_init(OsmGpsMap * Line 912  osm_gps_map_osd_classic_init(OsmGpsMap *
912  void osm_gps_map_osd_enable_gps (OsmGpsMap *map, OsmGpsMapOsdCallback cb,  void osm_gps_map_osd_enable_gps (OsmGpsMap *map, OsmGpsMapOsdCallback cb,
913                                   gpointer data) {                                   gpointer data) {
914      osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map);      osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map);
   
915      g_return_if_fail (osd);      g_return_if_fail (osd);
916    
917      osd->cb = cb;      osd->cb = cb;
# Line 471  void osm_gps_map_osd_enable_gps (OsmGpsM Line 924  void osm_gps_map_osd_enable_gps (OsmGpsM
924      osm_gps_map_redraw(map);      osm_gps_map_redraw(map);
925  }  }
926  #endif  #endif
927    
928    osd_button_t
929    osm_gps_map_osd_check(OsmGpsMap *map, gint x, gint y) {
930        osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map);
931        g_return_val_if_fail (osd, OSD_NONE);
932    
933        return osd_check(osd, x, y);
934    }
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