Diff of /trunk/src/area_edit.c

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revision 248 by harbaum, Tue Jul 28 06:27:25 2009 UTC revision 249 by harbaum, Thu Jul 30 07:57:48 2009 UTC
# Line 91  static gboolean current_tab_is(context_t Line 91  static gboolean current_tab_is(context_t
91    return(strcasecmp(name, _(str)) == 0);    return(strcasecmp(name, _(str)) == 0);
92  }  }
93    
94    static char *warn_text(context_t *context) {
95      /* compute area size */
96      pos_float_t center_lat = (context->max.lat + context->min.lat)/2;
97      double vscale = DEG2RAD(POS_EQ_RADIUS / 1000.0);
98      double hscale = DEG2RAD(cos(DEG2RAD(center_lat)) * POS_EQ_RADIUS / 1000.0);
99    
100      double area = vscale * (context->max.lat - context->min.lat) *
101        hscale * (context->max.lon - context->min.lon);
102    
103      return g_strdup_printf(
104         _("The currently selected area is %.02f km² (%.02f mi²) in size. "
105           "This is more than the recommended %.02f km² (%.02f mi²).\n\n"
106           "Continuing may result in a big or failing download and low "
107           "mapping performance in a densly mapped area (e.g. cities)!"),
108         area, area/(KMPMIL*KMPMIL),
109         WARN_OVER, WARN_OVER/(KMPMIL*KMPMIL)
110         );
111    }
112    
113  static void on_area_warning_clicked(GtkButton *button, gpointer data) {  static void on_area_warning_clicked(GtkButton *button, gpointer data) {
114    context_t *context = (context_t*)data;    context_t *context = (context_t*)data;
115    
116    /* compute area size */    char *wtext = warn_text(context);
117      warningf(context->dialog, wtext);
118      g_free(wtext);
119    }
120    
121    static gboolean area_warning(context_t *context) {
122      gboolean ret = TRUE;
123    
124      /* check if area size exceeds recommended values */
125    pos_float_t center_lat = (context->max.lat + context->min.lat)/2;    pos_float_t center_lat = (context->max.lat + context->min.lat)/2;
126    double vscale = DEG2RAD(POS_EQ_RADIUS / 1000.0);    double vscale = DEG2RAD(POS_EQ_RADIUS / 1000.0);
127    double hscale = DEG2RAD(cos(DEG2RAD(center_lat)) * POS_EQ_RADIUS / 1000.0);    double hscale = DEG2RAD(cos(DEG2RAD(center_lat)) * POS_EQ_RADIUS / 1000.0);
# Line 102  static void on_area_warning_clicked(GtkB Line 129  static void on_area_warning_clicked(GtkB
129    double area = vscale * (context->max.lat - context->min.lat) *    double area = vscale * (context->max.lat - context->min.lat) *
130      hscale * (context->max.lon - context->min.lon);      hscale * (context->max.lon - context->min.lon);
131    
132    warningf(context->dialog,    if(area > WARN_OVER) {
133     _("The currently selected area is %.02f km² (%.02f mi²) in size. "      char *wtext = warn_text(context);
      "This is more than the recommended %.02f km² (%.02f mi²).\n\n"  
      "Continuing may result in a big download and low mapping performance "  
      "in a densly mapped area (e.g. cities)!"),  
            area, area/(KMPMIL*KMPMIL),  
            WARN_OVER, WARN_OVER/(KMPMIL*KMPMIL)  
            );  
134    
135        ret = yes_no_f(context->dialog, context->area->appdata,
136                       MISC_AGAIN_ID_AREA_TOO_BIG, MISC_AGAIN_FLAG_DONT_SAVE_NO,
137                       _("Area size warning!"),
138                       _("%s Do you really want to continue?"), wtext);
139    
140        g_free(wtext);
141      }
142    
143      return ret;
144  }  }
145    
146  static void area_main_update(context_t *context) {  static void area_main_update(context_t *context) {
# Line 559  static gboolean map_gps_update(gpointer Line 589  static gboolean map_gps_update(gpointer
589    
590  gboolean area_edit(area_edit_t *area) {  gboolean area_edit(area_edit_t *area) {
591    GtkWidget *vbox;    GtkWidget *vbox;
   gboolean ok = FALSE;  
592    
593    context_t context;    context_t context;
594    memset(&context, 0, sizeof(context_t));    memset(&context, 0, sizeof(context_t));
# Line 808  gboolean area_edit(area_edit_t *area) { Line 837  gboolean area_edit(area_edit_t *area) {
837    
838    area_main_update(&context);    area_main_update(&context);
839    
840    if(GTK_RESPONSE_ACCEPT == gtk_dialog_run(GTK_DIALOG(context.dialog))) {    gboolean leave = FALSE, ok = FALSE;
841      do {
842        if(GTK_RESPONSE_ACCEPT == gtk_dialog_run(GTK_DIALOG(context.dialog))) {
843          if(area_warning(&context)) {
844            leave = TRUE;
845            ok = TRUE;
846          }
847        } else
848          leave = TRUE;
849      } while(!leave);
850    
851      if(ok) {
852      /* copy modified values back to given storage */      /* copy modified values back to given storage */
853      area->min->lat = context.min.lat;      area->min->lat = context.min.lat;
854      area->min->lon = context.min.lon;      area->min->lon = context.min.lon;
855      area->max->lat = context.max.lat;      area->max->lat = context.max.lat;
856      area->max->lon = context.max.lon;      area->max->lon = context.max.lon;
     ok = TRUE;  
857    }    }
858    
859  #ifdef ENABLE_OSM_GPS_MAP  #ifdef ENABLE_OSM_GPS_MAP
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