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 77 by harbaum, Tue Aug 25 12:49:03 2009 UTC
# Line 22  Line 22 
22  #include <math.h>    // M_PI  #include <math.h>    // M_PI
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 37  Line 38 
38  typedef struct {  typedef struct {
39      /* the offscreen representation of the OSD */      /* the offscreen representation of the OSD */
40      cairo_surface_t *overlay;      cairo_surface_t *overlay;
   
     GdkColor bg, fg, da;  
   
41  } osd_priv_t;  } osd_priv_t;
42    
43  /* position and extent of bounding box */  /* position and extent of bounding box */
44    #ifndef OSD_X
45  #define OSD_X      (10)  #define OSD_X      (10)
46    #endif
47    
48    #ifndef OSD_Y
49  #define OSD_Y      (10)  #define OSD_Y      (10)
50    #endif
51    
52  /* parameters of the direction shape */  /* parameters of the direction shape */
53  #ifndef OSM_GPS_MAP_OSD_DIAMETER  #ifndef OSD_DIAMETER
54  #define D_RAD  (30)         // diameter of dpad  #define D_RAD  (30)         // diameter of dpad
55  #else  #else
56  #define D_RAD  (OSM_GPS_MAP_OSD_DIAMETER)  #define D_RAD  (OSD_DIAMETER)
57  #endif  #endif
58  #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
59  #define D_LEN  (D_RAD/4)    // length of arrow  #define D_LEN  (D_RAD/4)    // length of arrow
# Line 67  typedef struct { Line 70  typedef struct {
70  #define OSD_SHADOW (0)  #define OSD_SHADOW (0)
71  #endif  #endif
72    
73    /* normally the GPS button is in the center of the dpad. if there's */
74    /* no dpad it will go into the zoom area */
75    #if defined(OSD_GPS_BUTTON) && defined(OSD_NO_DPAD)
76    #define Z_GPS  1
77    #else
78    #define Z_GPS  0
79    #endif
80    
81  /* total width and height of controls incl. shadow */  /* total width and height of controls incl. shadow */
82  #define OSD_W    (2*D_RAD + OSD_SHADOW)  #define OSD_W    (2*D_RAD + OSD_SHADOW + Z_GPS * 2 * Z_RAD)
83    #if !Z_GPS
84  #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)
85    #else
86    #define OSD_H    (2*Z_RAD + OSD_SHADOW)
87    #endif
88    
89  #ifdef OSD_SHADOW_ENABLE  #ifdef OSD_SHADOW_ENABLE
90  #define OSD_LBL_SHADOW (OSD_SHADOW/2)  #define OSD_LBL_SHADOW (OSD_SHADOW/2)
91  #endif  #endif
92    
93  #define Z_TOP    (2 * D_RAD + Z_STEP)  #define Z_TOP    ((1-Z_GPS) * (2 * D_RAD + Z_STEP))
94    
95  #define Z_MID    (Z_TOP + Z_RAD)  #define Z_MID    (Z_TOP + Z_RAD)
96  #define Z_BOT    (Z_MID + Z_RAD)  #define Z_BOT    (Z_MID + Z_RAD)
97  #define Z_LEFT   (Z_RAD)  #define Z_LEFT   (Z_RAD)
98  #define Z_RIGHT  (2 * D_RAD - Z_RAD)  #define Z_RIGHT  (2 * D_RAD - Z_RAD + Z_GPS * 2 * Z_RAD)
99    #define Z_CENTER ((Z_RIGHT + Z_LEFT)/2)
100    
101  /* create the cairo shape used for the zoom buttons */  /* create the cairo shape used for the zoom buttons */
102  static void  static void
# Line 114  static osd_button_t Line 130  static osd_button_t
130  osm_gps_map_osd_check_dpad(gint x, gint y)  osm_gps_map_osd_check_dpad(gint x, gint y)
131  {  {
132      /* within entire dpad circle */      /* within entire dpad circle */
133      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))
134      {      {
135          /* convert into position relative to dpads centre */          /* convert into position relative to dpads centre */
136          x -= (OSD_X + D_RAD);          x -= D_RAD;
137          y -= (OSD_Y + D_RAD);          y -= D_RAD;
138    
139  #ifdef OSD_GPS_BUTTON  #ifdef OSD_GPS_BUTTON
140          /* check for dpad center goes here! */          /* check for dpad center goes here! */
# Line 147  osm_gps_map_osd_check_dpad(gint x, gint Line 163  osm_gps_map_osd_check_dpad(gint x, gint
163  /* check whether x/y is within the zoom pads */  /* check whether x/y is within the zoom pads */
164  static osd_button_t  static osd_button_t
165  osm_gps_map_osd_check_zoom(gint x, gint y) {  osm_gps_map_osd_check_zoom(gint x, gint y) {
166      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) {
167    
168          /* within circle around (-) label */          /* within circle around (-) label */
169          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)  
170              return OSD_OUT;              return OSD_OUT;
171    
172          /* within circle around (+) label */          /* within circle around (+) label */
173          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))
174              return OSD_IN;              return OSD_IN;
175    
176    #if Z_GPS == 1
177            /* within square around center */
178            if( x > Z_CENTER - Z_RAD && x < Z_CENTER + Z_RAD)
179                return OSD_GPS;
180    #endif
181    
182            /* between center of (-) button and center of entire zoom control area */
183            if(x > OSD_LEFT && x < D_RAD)
184                return OSD_OUT;
185    
186          /* between center of (+) button and center of entire zoom control area */          /* between center of (+) button and center of entire zoom control area */
187          if(x < OSD_RIGHT && x > OSD_X + D_RAD)          if(x < OSD_RIGHT && x > D_RAD)
188              return OSD_IN;              return OSD_IN;
189      }      }
190    
# Line 170  osm_gps_map_osd_check_zoom(gint x, gint Line 192  osm_gps_map_osd_check_zoom(gint x, gint
192  }  }
193    
194  static osd_button_t  static osd_button_t
195  osm_gps_map_osd_check(gint x, gint y) {  osm_gps_map_osd_check(osm_gps_map_osd_t *osd, gint x, gint y) {
196      osd_button_t but = OSD_NONE;      osd_button_t but = OSD_NONE;
197    
198        x -= OSD_X;
199        y -= OSD_Y;
200    
201        if(OSD_X < 0)
202            x -= (osd->widget->allocation.width - OSD_W);
203    
204        if(OSD_Y < 0)
205            y -= (osd->widget->allocation.height - OSD_H);
206    
207      /* first do a rough test for the OSD area. */      /* first do a rough test for the OSD area. */
208      /* this is just to avoid an unnecessary detailed test */      /* this is just to avoid an unnecessary detailed test */
209      if(x > OSD_X && x < OSD_X + OSD_W &&      if(x > 0 && x < OSD_W && y > 0 && y < OSD_H) {
        y > OSD_Y && y < OSD_Y + OSD_H) {  
210  #ifndef OSD_NO_DPAD  #ifndef OSD_NO_DPAD
211          but = osm_gps_map_osd_check_dpad(x, y);          but = osm_gps_map_osd_check_dpad(x, y);
212  #endif  #endif
# Line 247  osm_gps_map_osd_dpad_labels(cairo_t *cr, Line 277  osm_gps_map_osd_dpad_labels(cairo_t *cr,
277    
278  #ifdef OSD_GPS_BUTTON  #ifdef OSD_GPS_BUTTON
279  /* draw the satellite dish icon in the center of the dpad */  /* draw the satellite dish icon in the center of the dpad */
280  #define GPS_V0  (D_RAD/8)  #define GPS_V0  (D_RAD/7)
281  #define GPS_V1  (D_RAD/10)  #define GPS_V1  (D_RAD/10)
282  #define GPS_V2  (D_RAD/5)  #define GPS_V2  (D_RAD/5)
283    
284  /* draw a satellite receiver dish */  /* draw a satellite receiver dish */
285    /* this is either drawn in the center of the dpad (if present) */
286    /* or in the middle of the zoom area */
287  static void  static void
288  osm_gps_map_osd_dpad_gps(cairo_t *cr, gint x, gint y) {  osm_gps_map_osd_dpad_gps(cairo_t *cr, gint x, gint y) {
289      /* move reference to dpad center */      /* move reference to dpad center */
290      x += D_RAD;      x += (1-Z_GPS) * D_RAD + Z_GPS * Z_RAD * 3;
291      y += D_RAD + GPS_V0;      y += (1-Z_GPS) * D_RAD + Z_GPS * Z_RAD + GPS_V0;
292    
293      cairo_move_to (cr, x-GPS_V0, y+GPS_V0);      cairo_move_to (cr, x-GPS_V0, y+GPS_V0);
294      cairo_rel_line_to (cr, +GPS_V0, -GPS_V0);      cairo_rel_line_to (cr, +GPS_V0, -GPS_V0);
# Line 325  osm_gps_map_osd_render(osm_gps_map_osd_t Line 357  osm_gps_map_osd_render(osm_gps_map_osd_t
357      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);
358      cairo_paint(cr);      cairo_paint(cr);
359    
360    #ifndef OSD_COLOR
361        GdkColor bg = GTK_WIDGET(osd->widget)->style->bg[GTK_STATE_NORMAL];
362        GdkColor fg = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_NORMAL];
363        GdkColor da = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_INSENSITIVE];
364    #endif
365    
366      cairo_set_operator(cr, CAIRO_OPERATOR_OVER);      cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
367    
368      /* --------- draw zoom and dpad shape shadow ----------- */      /* --------- draw zoom and dpad shape shadow ----------- */
# Line 343  osm_gps_map_osd_render(osm_gps_map_osd_t Line 381  osm_gps_map_osd_render(osm_gps_map_osd_t
381    
382      osm_gps_map_osd_zoom_shape(cr, x, y);      osm_gps_map_osd_zoom_shape(cr, x, y);
383  #ifndef OSD_COLOR  #ifndef OSD_COLOR
384      osm_gps_map_osd_shape(cr, &priv->bg, &priv->fg);      osm_gps_map_osd_shape(cr, &bg, &fg);
385  #else  #else
386      osm_gps_map_osd_shape(cr);      osm_gps_map_osd_shape(cr);
387  #endif  #endif
388  #ifndef OSD_NO_DPAD  #ifndef OSD_NO_DPAD
389      osm_gps_map_osd_dpad_shape(cr, x, y);      osm_gps_map_osd_dpad_shape(cr, x, y);
390  #ifndef OSD_COLOR  #ifndef OSD_COLOR
391      osm_gps_map_osd_shape(cr, &priv->bg, &priv->fg);      osm_gps_map_osd_shape(cr, &bg, &fg);
392  #else  #else
393      osm_gps_map_osd_shape(cr);      osm_gps_map_osd_shape(cr);
394  #endif  #endif
# Line 375  osm_gps_map_osd_render(osm_gps_map_osd_t Line 413  osm_gps_map_osd_render(osm_gps_map_osd_t
413      osm_gps_map_osd_dpad_labels(cr, x, y);      osm_gps_map_osd_dpad_labels(cr, x, y);
414  #endif  #endif
415  #ifndef OSD_COLOR  #ifndef OSD_COLOR
416      osm_gps_map_osd_labels(cr, Z_RAD/3, TRUE, &priv->fg, &priv->da);      osm_gps_map_osd_labels(cr, Z_RAD/3, TRUE, &fg, &da);
417  #else  #else
418      osm_gps_map_osd_labels(cr, Z_RAD/3, TRUE);      osm_gps_map_osd_labels(cr, Z_RAD/3, TRUE);
419  #endif  #endif
420  #ifdef OSD_GPS_BUTTON  #ifdef OSD_GPS_BUTTON
421      osm_gps_map_osd_dpad_gps(cr, x, y);      osm_gps_map_osd_dpad_gps(cr, x, y);
422  #ifndef OSD_COLOR  #ifndef OSD_COLOR
423      osm_gps_map_osd_labels(cr, Z_RAD/6, osd->cb != NULL, &priv->fg, &priv->da);      osm_gps_map_osd_labels(cr, Z_RAD/6, osd->cb != NULL, &fg, &da);
424  #else  #else
425      osm_gps_map_osd_labels(cr, Z_RAD/6, osd->cb != NULL);      osm_gps_map_osd_labels(cr, Z_RAD/6, osd->cb != NULL);
426  #endif  #endif
# Line 408  osm_gps_map_osd_draw(osm_gps_map_osd_t * Line 446  osm_gps_map_osd_draw(osm_gps_map_osd_t *
446    
447      // now draw this onto the original context      // now draw this onto the original context
448      cairo_t *cr = gdk_cairo_create(drawable);      cairo_t *cr = gdk_cairo_create(drawable);
449      cairo_set_source_surface(cr, priv->overlay, OSD_X, OSD_Y);  
450        int x = OSD_X, y = OSD_Y;
451        if(OSD_X < 0)
452            x = osd->widget->allocation.width - OSD_W + OSD_X;
453    
454        if(OSD_Y < 0)
455            y = osd->widget->allocation.height - OSD_H + OSD_Y;
456    
457        cairo_set_source_surface(cr, priv->overlay, x, y);
458      cairo_paint(cr);      cairo_paint(cr);
459      cairo_destroy(cr);      cairo_destroy(cr);
460  }  }
# Line 444  osm_gps_map_osd_classic_init(OsmGpsMap * Line 490  osm_gps_map_osd_classic_init(OsmGpsMap *
490    
491      osd_classic.priv = priv;      osd_classic.priv = priv;
492    
     /* 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];  
   
493      osm_gps_map_register_osd(map, &osd_classic);      osm_gps_map_register_osd(map, &osd_classic);
494  }  }
495    
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