]> git.street.me.uk Git - andy/viking.git/blobdiff - src/viktrwlayer_propwin.c
Add capability to save layer defaults from outside the layer defaults code.
[andy/viking.git] / src / viktrwlayer_propwin.c
index 30990056ce1137df2f5b75a67d30dfb036a86a10..7e8071e243c4507fab04cb742e79b637e970e4af 100644 (file)
@@ -41,6 +41,7 @@
 #include "dems.h"
 #include "viking.h"
 #include "vikviewport.h" /* ugh */
+#include "vikutils.h"
 #include <gdk-pixbuf/gdk-pixdata.h>
 
 typedef enum {
@@ -76,7 +77,7 @@ static const gdouble chunkss[] = {1.0, 2.0, 3.0, 4.0, 5.0, 8.0, 10.0,
                                  750.0, 1000.0, 10000.0};
 
 /* (Hopefully!) Human friendly distance grid sizes - note no fixed 'ratio' just numbers that look nice...*/
-static const gdouble chunksd[] = {0.1, 0.5, 1.0, 2.0, 3.0, 4.0, 5.0, 8.0, 10.0,
+static const gdouble chunksd[] = {0.1, 0.2, 0.5, 1.0, 2.0, 3.0, 4.0, 5.0, 8.0, 10.0,
                                  15.0, 20.0, 25.0, 40.0, 50.0, 75.0,
                                  100.0, 150.0, 200.0, 250.0, 375.0, 500.0,
                                  750.0, 1000.0, 10000.0};
@@ -99,6 +100,16 @@ static const time_t chunkst[] = {
   2419200,// 4 weeks
 };
 
+// Local show settings to restore on dialog opening
+static gboolean show_dem                = TRUE;
+static gboolean show_alt_gps_speed      = TRUE;
+static gboolean show_gps_speed          = TRUE;
+static gboolean show_gradient_gps_speed = TRUE;
+static gboolean show_dist_speed         = FALSE;
+static gboolean show_elev_speed         = FALSE;
+static gboolean show_elev_dem           = FALSE;
+static gboolean show_sd_gps_speed       = TRUE;
+
 typedef struct _propsaved {
   gboolean saved;
   GdkImage *img;
@@ -156,6 +167,7 @@ typedef struct _propwidgets {
   GtkWidget *w_show_gradient_gps_speed;
   GtkWidget *w_show_dist_speed;
   GtkWidget *w_show_elev_speed;
+  GtkWidget *w_show_elev_dem;
   GtkWidget *w_show_sd_gps_speed;
   gdouble   track_length;
   gdouble   track_length_inc_gaps;
@@ -201,6 +213,7 @@ typedef struct _propwidgets {
   VikTrackpoint *blob_tp;
   gboolean  is_blob_drawn;
   time_t    duration;
+  gchar     *tz; // TimeZone at track's location
 } PropWidgets;
 
 static PropWidgets *prop_widgets_new()
@@ -327,6 +340,32 @@ static guint get_time_chunk_index (time_t duration)
   return ci;
 }
 
+/**
+ *
+ */
+static guint get_distance_chunk_index (gdouble length)
+{
+  // Grid split
+  gdouble mylength = length / LINES;
+
+  // Search nearest chunk index
+  guint ci = 0;
+  guint last_chunk = G_N_ELEMENTS(chunksd);
+
+  // Loop through to find best match
+  while (mylength > chunksd[ci]) {
+    ci++;
+    // Last Resort Check
+    if ( ci == last_chunk )
+      break;
+  }
+  // Use previous value
+  if ( ci != 0 )
+   ci--;
+
+  return ci;
+}
+
 static VikTrackpoint *set_center_at_graph_position(gdouble event_x,
                                                   gint img_width,
                                                   VikTrwLayer *vtl,
@@ -709,6 +748,9 @@ void track_profile_move( GtkWidget *event_box, GdkEventMotion *event, PropWidget
     case VIK_UNITS_DISTANCE_MILES:
       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f miles", VIK_METERS_TO_MILES(meters_from_start) );
       break;
+    case VIK_UNITS_DISTANCE_NAUTICAL_MILES:
+      g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f NM", VIK_METERS_TO_NAUTICAL_MILES(meters_from_start) );
+      break;
     default:
       g_critical("Houston, we've had a problem. distance=%d", dist_units);
     }
@@ -789,6 +831,9 @@ void track_gradient_move( GtkWidget *event_box, GdkEventMotion *event, PropWidge
     case VIK_UNITS_DISTANCE_MILES:
       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f miles", VIK_METERS_TO_MILES(meters_from_start) );
       break;
+    case VIK_UNITS_DISTANCE_NAUTICAL_MILES:
+      g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f NM", VIK_METERS_TO_NAUTICAL_MILES(meters_from_start) );
+      break;
     default:
       g_critical("Houston, we've had a problem. distance=%d", dist_units);
     }
@@ -850,13 +895,14 @@ static void time_label_update (GtkWidget *widget, time_t seconds_from_start)
 }
 
 //
-static void real_time_label_update (GtkWidget *widget, VikTrackpoint *trackpoint)
+static void real_time_label_update ( PropWidgets *widgets, GtkWidget *widget, VikTrackpoint *trackpoint)
 {
   static gchar tmp_buf[64];
-  if ( trackpoint->has_timestamp )
+  if ( trackpoint->has_timestamp ) {
     // Alternatively could use %c format but I prefer a slightly more compact form here
     //  The full date can of course be seen on the Statistics tab
-    strftime (tmp_buf, sizeof(tmp_buf), "%x %X %Z", localtime(&(trackpoint->timestamp)));
+    strftime (tmp_buf, sizeof(tmp_buf), "%X %x %Z", localtime(&(trackpoint->timestamp)));
+  }
   else
     g_snprintf (tmp_buf, sizeof(tmp_buf), _("No Data"));
   gtk_label_set_text(GTK_LABEL(widget), tmp_buf);
@@ -887,7 +933,7 @@ void track_vt_move( GtkWidget *event_box, GdkEventMotion *event, PropWidgets *wi
   }
 
   if (trackpoint && widgets->w_cur_time_real) {
-    real_time_label_update ( widgets->w_cur_time_real, trackpoint );
+    real_time_label_update ( widgets, widgets->w_cur_time_real, trackpoint );
   }
 
   gint ix = (gint)x;
@@ -981,7 +1027,7 @@ void track_dt_move( GtkWidget *event_box, GdkEventMotion *event, PropWidgets *wi
   }
 
   if (trackpoint && widgets->w_cur_dist_time_real) {
-    real_time_label_update ( widgets->w_cur_dist_time_real, trackpoint );
+    real_time_label_update ( widgets, widgets->w_cur_dist_time_real, trackpoint );
   }
 
   gint ix = (gint)x;
@@ -991,10 +1037,17 @@ void track_dt_move( GtkWidget *event_box, GdkEventMotion *event, PropWidgets *wi
 
   if (trackpoint && widgets->w_cur_dist_dist) {
     static gchar tmp_buf[20];
-    if ( a_vik_get_units_distance () == VIK_UNITS_DISTANCE_MILES )
+    switch ( a_vik_get_units_distance () ) {
+    case VIK_UNITS_DISTANCE_MILES:
       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f miles", widgets->distances[ix]);
-    else
+      break;
+    case VIK_UNITS_DISTANCE_NAUTICAL_MILES:
+      g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f NM", widgets->distances[ix]);
+      break;
+    default:
       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f km", widgets->distances[ix]);
+      break;
+    }
     gtk_label_set_text(GTK_LABEL(widgets->w_cur_dist_dist), tmp_buf);
   }
 
@@ -1060,7 +1113,7 @@ void track_et_move( GtkWidget *event_box, GdkEventMotion *event, PropWidgets *wi
   }
 
   if (trackpoint && widgets->w_cur_elev_time_real) {
-    real_time_label_update ( widgets->w_cur_elev_time_real, trackpoint );
+    real_time_label_update ( widgets, widgets->w_cur_elev_time_real, trackpoint );
   }
 
   gint ix = (gint)x;
@@ -1141,6 +1194,9 @@ void track_sd_move( GtkWidget *event_box, GdkEventMotion *event, PropWidgets *wi
     case VIK_UNITS_DISTANCE_MILES:
       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f miles", VIK_METERS_TO_MILES(meters_from_start) );
       break;
+    case VIK_UNITS_DISTANCE_NAUTICAL_MILES:
+      g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f NM", VIK_METERS_TO_NAUTICAL_MILES(meters_from_start) );
+      break;
     default:
       g_critical("Houston, we've had a problem. distance=%d", dist_units);
     }
@@ -1236,6 +1292,9 @@ static void draw_dem_alt_speed_dist(VikTrack *tr,
     max_speed = max_speed_in * 110 / 100;
 
   gdouble dist = 0;
+  gint h2 = height + MARGIN_Y; // Adjust height for x axis labelling offset
+  gint achunk = chunksa[cia]*LINES;
+
   for (iter = tr->trackpoints->next; iter; iter = iter->next) {
     int x;
     dist += vik_coord_diff ( &(VIK_TRACKPOINT(iter->data)->coord),
@@ -1250,16 +1309,16 @@ static void draw_dem_alt_speed_dist(VikTrack *tr,
          elev =  VIK_METERS_TO_FEET(elev);
        // No conversion needed if already in metres
 
-       // consider chunk size
-       int y_alt = height - ((height * elev)/(chunksa[cia]*LINES) );
-       gdk_draw_rectangle(GDK_DRAWABLE(pix), alt_gc, TRUE, x-2, y_alt-2, 4, 4);
+        // consider chunk size
+        int y_alt = h2 - ((height * elev)/achunk );
+        gdk_draw_rectangle(GDK_DRAWABLE(pix), alt_gc, TRUE, x-2, y_alt-2, 4, 4);
       }
     }
     if (do_speed) {
       // This is just a speed indicator - no actual values can be inferred by user
       if (!isnan(VIK_TRACKPOINT(iter->data)->speed)) {
-       int y_speed = height - (height * VIK_TRACKPOINT(iter->data)->speed)/max_speed;
-       gdk_draw_rectangle(GDK_DRAWABLE(pix), speed_gc, TRUE, x-2, y_speed-2, 4, 4);
+        int y_speed = h2 - (height * VIK_TRACKPOINT(iter->data)->speed)/max_speed;
+        gdk_draw_rectangle(GDK_DRAWABLE(pix), speed_gc, TRUE, x-2, y_speed-2, 4, 4);
       }
     }
   }
@@ -1357,6 +1416,55 @@ static void draw_grid_x_time ( GtkWidget *window, GtkWidget *image, PropWidgets
                   MARGIN_X+xx, MARGIN_Y, MARGIN_X+xx, MARGIN_Y+widgets->profile_height );
 }
 
+/**
+ * draw_grid_x_distance:
+ *
+ * A common way to draw the grid with x axis labels for distance graphs
+ *
+ */
+static void draw_grid_x_distance ( GtkWidget *window, GtkWidget *image, PropWidgets *widgets, GdkPixmap *pix, guint ii, gdouble dd, guint xx, vik_units_distance_t dist_units )
+{
+  gchar *label_markup = NULL;
+  switch ( dist_units ) {
+  case VIK_UNITS_DISTANCE_MILES:
+    if ( ii > 4 )
+      label_markup = g_strdup_printf ( "<span size=\"small\">%d %s</span>", (guint)dd, _("miles") );
+    else
+      label_markup = g_strdup_printf ( "<span size=\"small\">%.1f %s</span>", dd, _("miles") );
+    break;
+  case VIK_UNITS_DISTANCE_NAUTICAL_MILES:
+    if ( ii > 4 )
+      label_markup = g_strdup_printf ( "<span size=\"small\">%d %s</span>", (guint)dd, _("NM") );
+    else
+      label_markup = g_strdup_printf ( "<span size=\"small\">%.1f %s</span>", dd, _("NM") );
+    break;
+  default:
+    // VIK_UNITS_DISTANCE_KILOMETRES:
+    if ( ii > 4 )
+      label_markup = g_strdup_printf ( "<span size=\"small\">%d %s</span>", (guint)dd, _("km") );
+    else
+      label_markup = g_strdup_printf ( "<span size=\"small\">%.1f %s</span>", dd, _("km") );
+    break;
+  }
+
+  if ( label_markup ) {
+    PangoLayout *pl = gtk_widget_create_pango_layout (GTK_WIDGET(image), NULL);
+    pango_layout_set_font_description (pl, gtk_widget_get_style(window)->font_desc);
+
+    pango_layout_set_markup ( pl, label_markup, -1 );
+    g_free ( label_markup );
+    int ww, hh;
+    pango_layout_get_pixel_size ( pl, &ww, &hh );
+
+    gdk_draw_layout ( GDK_DRAWABLE(pix), gtk_widget_get_style(window)->fg_gc[0],
+                      MARGIN_X+xx-ww/2, MARGIN_Y/2-hh/2, pl );
+    g_object_unref ( G_OBJECT ( pl ) );
+  }
+
+  gdk_draw_line ( GDK_DRAWABLE(pix), gtk_widget_get_style(window)->dark_gc[0],
+                  MARGIN_X+xx, MARGIN_Y, MARGIN_X+xx, MARGIN_Y+widgets->profile_height );
+}
+
 /**
  * clear the images (scale texts & actual graph)
  */
@@ -1368,6 +1476,33 @@ static void clear_images (GdkPixmap *pix, GtkWidget *window, PropWidgets *widget
                      TRUE, 0, 0, widgets->profile_width+MARGIN_X, widgets->profile_height+MARGIN_Y);
 }
 
+/**
+ *
+ */
+static void draw_distance_divisions ( GtkWidget *window, GtkWidget *image, GdkPixmap *pix, PropWidgets *widgets, vik_units_distance_t dist_units )
+{
+  // Set to display units from length in metres.
+  gdouble length = widgets->track_length_inc_gaps;
+  switch (dist_units) {
+    case VIK_UNITS_DISTANCE_MILES:
+      length = VIK_METERS_TO_MILES(length);
+      break;
+    case VIK_UNITS_DISTANCE_NAUTICAL_MILES:
+      length = VIK_METERS_TO_NAUTICAL_MILES(length);
+      break;
+    default:
+      // KM
+      length = length/1000.0;
+      break;
+  }
+  guint index = get_distance_chunk_index ( length );
+  gdouble dist_per_pixel = length/widgets->profile_width;
+
+  for (guint i=1; chunksd[index]*i <= length; i++) {
+    draw_grid_x_distance ( window, image, widgets, pix, index, chunksd[index]*i, (guint)(chunksd[index]*i/dist_per_pixel), dist_units );
+  }
+}
+
 /**
  * Draw just the height profile image
  */
@@ -1403,7 +1538,6 @@ static void draw_elevations (GtkWidget *image, VikTrack *tr, PropWidgets *widget
 
   // Assign locally
   gdouble mina = widgets->draw_min_altitude;
-  gdouble maxa = widgets->max_altitude;
 
   GtkWidget *window = gtk_widget_get_toplevel (widgets->elev_box);
   GdkPixmap *pix = gdk_pixmap_new( gtk_widget_get_window(window), widgets->profile_width+MARGIN_X, widgets->profile_height+MARGIN_Y, -1 );
@@ -1437,6 +1571,8 @@ static void draw_elevations (GtkWidget *image, VikTrack *tr, PropWidgets *widget
     draw_grid_y ( window, image, widgets, pix, s, i );
   }
 
+  draw_distance_divisions ( window, image, pix, widgets, a_vik_get_units_distance() );
+
   /* draw elevations */
   guint height = MARGIN_Y+widgets->profile_height;
   for ( i = 0; i < widgets->profile_width; i++ )
@@ -1468,11 +1604,11 @@ static void draw_elevations (GtkWidget *image, VikTrack *tr, PropWidgets *widget
                            dem_alt_gc,
                            gps_speed_gc,
                            mina,
-                           maxa - mina,
+                           widgets->max_altitude - mina,
                            widgets->max_speed,
                            widgets->cia,
                            widgets->profile_width,
-                           widgets->profile_height+MARGIN_Y,
+                           widgets->profile_height,
                            MARGIN_X,
                            gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON(widgets->w_show_dem)),
                            gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON(widgets->w_show_alt_gps_speed)));
@@ -1565,6 +1701,8 @@ static void draw_gradients (GtkWidget *image, VikTrack *tr, PropWidgets *widgets
     draw_grid_y ( window, image, widgets, pix, s, i );
   }
 
+  draw_distance_divisions ( window, image, pix, widgets, a_vik_get_units_distance() );
+
   /* draw gradients */
   guint height = widgets->profile_height + MARGIN_Y;
   for ( i = 0; i < widgets->profile_width; i++ )
@@ -1770,16 +1908,23 @@ static void draw_dt ( GtkWidget *image, VikTrack *tr, PropWidgets *widgets )
 
   // Convert into appropriate units
   vik_units_distance_t dist_units = a_vik_get_units_distance ();
-  if ( dist_units == VIK_UNITS_DISTANCE_MILES ) {
-    for ( i = 0; i < widgets->profile_width; i++ ) {
-      widgets->distances[i] = VIK_METERS_TO_MILES(widgets->distances[i]);
-    }
-  }
-  else {
-    // Metres - but want in kms
-    for ( i = 0; i < widgets->profile_width; i++ ) {
-      widgets->distances[i] = widgets->distances[i]/1000.0;
-    }
+  switch ( dist_units ) {
+    case VIK_UNITS_DISTANCE_MILES:
+      for ( i = 0; i < widgets->profile_width; i++ ) {
+        widgets->distances[i] = VIK_METERS_TO_MILES(widgets->distances[i]);
+      }
+      break;
+    case VIK_UNITS_DISTANCE_NAUTICAL_MILES:
+      for ( i = 0; i < widgets->profile_width; i++ ) {
+        widgets->distances[i] = VIK_METERS_TO_NAUTICAL_MILES(widgets->distances[i]);
+      }
+      break;
+    default:
+      // Metres - but want in kms
+      for ( i = 0; i < widgets->profile_width; i++ ) {
+        widgets->distances[i] = widgets->distances[i]/1000.0;
+      }
+      break;
   }
 
   widgets->duration = vik_track_get_duration ( widgets->tr );
@@ -1796,10 +1941,17 @@ static void draw_dt ( GtkWidget *image, VikTrack *tr, PropWidgets *widgets )
   // Assign locally
   // mind = 0.0; - Thus not used
   gdouble maxd;
-  if ( dist_units == VIK_UNITS_DISTANCE_MILES )
+  switch ( dist_units ) {
+  case VIK_UNITS_DISTANCE_MILES:
     maxd = VIK_METERS_TO_MILES(vik_track_get_length_including_gaps (tr));
-  else
+    break;
+  case VIK_UNITS_DISTANCE_NAUTICAL_MILES:
+    maxd = VIK_METERS_TO_NAUTICAL_MILES(vik_track_get_length_including_gaps (tr));
+    break;
+  default:
     maxd = vik_track_get_length_including_gaps (tr) / 1000.0;
+    break;
+  }
 
   /* Find suitable chunk index */
   gdouble dummy = 0.0; // expect this to remain the same! (not that it's used)
@@ -1812,10 +1964,17 @@ static void draw_dt ( GtkWidget *image, VikTrack *tr, PropWidgets *widgets )
   for (i=0; i<=LINES; i++) {
     gchar s[32];
 
-    if ( dist_units == VIK_UNITS_DISTANCE_MILES )
+    switch ( dist_units ) {
+    case VIK_UNITS_DISTANCE_MILES:
       sprintf(s, _("%.1f miles"), ((LINES-i)*chunksd[widgets->cid]));
-    else
+      break;
+    case VIK_UNITS_DISTANCE_NAUTICAL_MILES:
+      sprintf(s, _("%.1f NM"), ((LINES-i)*chunksd[widgets->cid]));
+      break;
+    default:
       sprintf(s, _("%.1f km"), ((LINES-i)*chunksd[widgets->cid]));
+      break;
+    }
 
     draw_grid_y ( window, image, widgets, pix, s, i );
   }
@@ -1927,21 +2086,52 @@ static void draw_et ( GtkWidget *image, VikTrack *tr, PropWidgets *widgets )
     gdk_draw_line ( GDK_DRAWABLE(pix), gtk_widget_get_style(window)->dark_gc[3],
                     i + MARGIN_X, height, i + MARGIN_X, height-widgets->profile_height*(widgets->ats[i]-mina)/(chunksa[widgets->ciat]*LINES) );
 
-  // Show speed indicator
+  // Show DEMS
+  if ( gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widgets->w_show_elev_dem)) )  {
+    GdkColor color;
+    GdkGC *dem_alt_gc = gdk_gc_new ( gtk_widget_get_window(window) );
+    gdk_color_parse ( "green", &color );
+    gdk_gc_set_rgb_fg_color ( dem_alt_gc, &color);
+
+    gint h2 = widgets->profile_height + MARGIN_Y; // Adjust height for x axis labelling offset
+    gint achunk = chunksa[widgets->ciat]*LINES;
+
+    for ( i = 0; i < widgets->profile_width; i++ ) {
+      // This could be slow doing this each time...
+      VikTrackpoint *tp = vik_track_get_closest_tp_by_percentage_time ( widgets->tr, ((gdouble)i/(gdouble)widgets->profile_width), NULL );
+      if ( tp ) {
+        gint16 elev = a_dems_get_elev_by_coord(&(tp->coord), VIK_DEM_INTERPOL_SIMPLE);
+        elev -= mina; //?
+        if ( elev != VIK_DEM_INVALID_ELEVATION ) {
+          // Convert into height units
+          if ( a_vik_get_units_height () == VIK_UNITS_HEIGHT_FEET )
+            elev = VIK_METERS_TO_FEET(elev);
+          // No conversion needed if already in metres
+
+          // consider chunk size
+          int y_alt = h2 - ((widgets->profile_height * elev)/achunk );
+          gdk_draw_rectangle(GDK_DRAWABLE(pix), dem_alt_gc, TRUE, i+MARGIN_X-2, y_alt-2, 4, 4);
+        }
+      }
+    }
+    g_object_unref ( G_OBJECT(dem_alt_gc) );
+  }
+
+  // Show speeds
   if ( gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widgets->w_show_elev_speed)) ) {
-    GdkGC *elev_speed_gc = gdk_gc_new ( gtk_widget_get_window(window) );
     GdkColor color;
+    // This is just an indicator - no actual values can be inferred by user
+    GdkGC *elev_speed_gc = gdk_gc_new ( gtk_widget_get_window(window) );
     gdk_color_parse ( "red", &color );
     gdk_gc_set_rgb_fg_color ( elev_speed_gc, &color);
 
-    gdouble max_speed = 0;
-    max_speed = widgets->max_speed * 110 / 100;
+    gdouble max_speed = widgets->max_speed * 110 / 100;
 
-    // This is just an indicator - no actual values can be inferred by user
     for ( i = 0; i < widgets->profile_width; i++ ) {
       int y_speed = widgets->profile_height - (widgets->profile_height * widgets->speeds[i])/max_speed;
       gdk_draw_rectangle(GDK_DRAWABLE(pix), elev_speed_gc, TRUE, i+MARGIN_X-2, y_speed-2, 4, 4);
     }
+
     g_object_unref ( G_OBJECT(elev_speed_gc) );
   }
 
@@ -2036,6 +2226,8 @@ static void draw_sd ( GtkWidget *image, VikTrack *tr, PropWidgets *widgets)
     draw_grid_y ( window, image, widgets, pix, s, i );
   }
 
+  draw_distance_divisions ( window, image, pix, widgets, a_vik_get_units_distance() );
+
   /* draw speeds */
   guint height = widgets->profile_height + MARGIN_Y;
   for ( i = 0; i < widgets->profile_width; i++ )
@@ -2640,8 +2832,19 @@ GtkWidget *vik_trw_layer_create_sddiag ( GtkWidget *window, PropWidgets *widgets
 
 static void save_values ( PropWidgets *widgets )
 {
+  // Session settings
   a_settings_set_integer ( VIK_SETTINGS_TRACK_PROFILE_WIDTH, widgets->profile_width );
   a_settings_set_integer ( VIK_SETTINGS_TRACK_PROFILE_HEIGHT, widgets->profile_height );
+
+  // Just for this session ATM
+  show_dem                = gtk_toggle_button_get_active ( GTK_TOGGLE_BUTTON(widgets->w_show_dem) );
+  show_alt_gps_speed      = gtk_toggle_button_get_active ( GTK_TOGGLE_BUTTON(widgets->w_show_alt_gps_speed) );
+  show_gps_speed          = gtk_toggle_button_get_active ( GTK_TOGGLE_BUTTON(widgets->w_show_gps_speed) );
+  show_gradient_gps_speed = gtk_toggle_button_get_active ( GTK_TOGGLE_BUTTON(widgets->w_show_gradient_gps_speed) );
+  show_dist_speed         = gtk_toggle_button_get_active ( GTK_TOGGLE_BUTTON(widgets->w_show_dist_speed) );
+  show_elev_dem           = gtk_toggle_button_get_active ( GTK_TOGGLE_BUTTON(widgets->w_show_elev_dem) );
+  show_elev_speed         = gtk_toggle_button_get_active ( GTK_TOGGLE_BUTTON(widgets->w_show_elev_speed) );
+  show_sd_gps_speed       = gtk_toggle_button_get_active ( GTK_TOGGLE_BUTTON(widgets->w_show_sd_gps_speed) );
 }
 
 static void destroy_cb ( GtkDialog *dialog, PropWidgets *widgets )
@@ -2993,6 +3196,9 @@ void vik_trw_layer_propwin_run ( GtkWindow *parent,
   case VIK_UNITS_DISTANCE_MILES:
     g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f miles", VIK_METERS_TO_MILES(tr_len) );
     break;
+  case VIK_UNITS_DISTANCE_NAUTICAL_MILES:
+    g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f NM", VIK_METERS_TO_NAUTICAL_MILES(tr_len) );
+    break;
   default:
     g_critical("Houston, we've had a problem. distance=%d", dist_units);
   }
@@ -3094,6 +3300,9 @@ void vik_trw_layer_propwin_run ( GtkWindow *parent,
   case VIK_UNITS_DISTANCE_MILES:
     g_snprintf(tmp_buf, sizeof(tmp_buf), "%.3f miles", (tp_count - seg_count) == 0 ? 0 : VIK_METERS_TO_MILES(tr_len / ( tp_count - seg_count )) );
     break;
+  case VIK_UNITS_DISTANCE_NAUTICAL_MILES:
+    g_snprintf(tmp_buf, sizeof(tmp_buf), "%.3f NM", (tp_count - seg_count) == 0 ? 0 : VIK_METERS_TO_NAUTICAL_MILES(tr_len / ( tp_count - seg_count )) );
+    break;
   default:
     g_critical("Houston, we've had a problem. distance=%d", dist_units);
   }
@@ -3156,11 +3365,21 @@ void vik_trw_layer_propwin_run ( GtkWindow *parent,
     t1 = VIK_TRACKPOINT(tr->trackpoints->data)->timestamp;
     t2 = VIK_TRACKPOINT(g_list_last(tr->trackpoints)->data)->timestamp;
 
-    strftime (tmp_buf, sizeof(tmp_buf), "%c", localtime(&(t1)));
-    widgets->w_time_start = content[cnt++] = gtk_label_new(tmp_buf);
+    VikCoord vc;
+    // Notional center of a track is simply an average of the bounding box extremities
+    struct LatLon center = { (tr->bbox.north+tr->bbox.south)/2, (tr->bbox.east+tr->bbox.west)/2 };
+    vik_coord_load_from_latlon ( &vc, vik_trw_layer_get_coord_mode(vtl), &center );
+
+    widgets->tz = vu_get_tz_at_location ( &vc );
 
-    strftime (tmp_buf, sizeof(tmp_buf), "%c", localtime(&(t2)));
-    widgets->w_time_end = content[cnt++] = gtk_label_new(tmp_buf);
+    gchar *msg;
+    msg = vu_get_time_string ( &t1, "%c", &vc, widgets->tz );
+    widgets->w_time_start = content[cnt++] = gtk_label_new(msg);
+    g_free ( msg );
+
+    msg = vu_get_time_string ( &t2, "%c", &vc, widgets->tz );
+    widgets->w_time_end = content[cnt++] = gtk_label_new(msg);
+    g_free ( msg );
 
     g_snprintf(tmp_buf, sizeof(tmp_buf), _("%d minutes"), (int)(t2-t1)/60);
     widgets->w_time_dur = content[cnt++] = gtk_label_new(tmp_buf);
@@ -3184,8 +3403,8 @@ void vik_trw_layer_propwin_run ( GtkWindow *parent,
                               _("<b>Track Distance:</b>"), widgets->w_cur_dist,
                               _("<b>Track Height:</b>"), widgets->w_cur_elevation,
                               NULL, NULL,
-                              widgets->w_show_dem, TRUE,
-                              widgets->w_show_alt_gps_speed, TRUE);
+                              widgets->w_show_dem, show_dem,
+                              widgets->w_show_alt_gps_speed, show_alt_gps_speed);
     g_signal_connect (widgets->w_show_dem, "toggled", G_CALLBACK (checkbutton_toggle_cb), widgets);
     g_signal_connect (widgets->w_show_alt_gps_speed, "toggled", G_CALLBACK (checkbutton_toggle_cb), widgets);
     gtk_notebook_append_page(GTK_NOTEBOOK(graphs), page, gtk_label_new(_("Elevation-distance")));
@@ -3200,7 +3419,7 @@ void vik_trw_layer_propwin_run ( GtkWindow *parent,
                               _("<b>Track Distance:</b>"), widgets->w_cur_gradient_dist,
                               _("<b>Track Gradient:</b>"), widgets->w_cur_gradient_gradient,
                               NULL, NULL,
-                              widgets->w_show_gradient_gps_speed, TRUE,
+                              widgets->w_show_gradient_gps_speed, show_gradient_gps_speed,
                               NULL, FALSE);
     g_signal_connect (widgets->w_show_gradient_gps_speed, "toggled", G_CALLBACK (checkbutton_toggle_cb), widgets);
     gtk_notebook_append_page(GTK_NOTEBOOK(graphs), page, gtk_label_new(_("Gradient-distance")));
@@ -3215,8 +3434,8 @@ void vik_trw_layer_propwin_run ( GtkWindow *parent,
     page = create_graph_page (widgets->speed_box,
                               _("<b>Track Time:</b>"), widgets->w_cur_time,
                               _("<b>Track Speed:</b>"), widgets->w_cur_speed,
-                              _("<b>Date/Time:</b>"), widgets->w_cur_time_real,
-                              widgets->w_show_gps_speed, TRUE,
+                              _("<b>Time/Date:</b>"), widgets->w_cur_time_real,
+                              widgets->w_show_gps_speed, show_gps_speed,
                               NULL, FALSE);
     g_signal_connect (widgets->w_show_gps_speed, "toggled", G_CALLBACK (checkbutton_toggle_cb), widgets);
     gtk_notebook_append_page(GTK_NOTEBOOK(graphs), page, gtk_label_new(_("Speed-time")));
@@ -3231,8 +3450,8 @@ void vik_trw_layer_propwin_run ( GtkWindow *parent,
     page = create_graph_page (widgets->dist_box,
                               _("<b>Track Distance:</b>"), widgets->w_cur_dist_dist,
                               _("<b>Track Time:</b>"), widgets->w_cur_dist_time,
-                              _("<b>Date/Time:</b>"), widgets->w_cur_dist_time_real,
-                              widgets->w_show_dist_speed, FALSE,
+                              _("<b>Time/Date:</b>"), widgets->w_cur_dist_time_real,
+                              widgets->w_show_dist_speed, show_dist_speed,
                               NULL, FALSE);
     g_signal_connect (widgets->w_show_dist_speed, "toggled", G_CALLBACK (checkbutton_toggle_cb), widgets);
     gtk_notebook_append_page(GTK_NOTEBOOK(graphs), page, gtk_label_new(_("Distance-time")));
@@ -3244,12 +3463,14 @@ void vik_trw_layer_propwin_run ( GtkWindow *parent,
     widgets->w_cur_elev_elev = gtk_label_new(_("No Data"));
     widgets->w_cur_elev_time_real = gtk_label_new(_("No Data"));
     widgets->w_show_elev_speed = gtk_check_button_new_with_mnemonic(_("Show S_peed"));
+    widgets->w_show_elev_dem = gtk_check_button_new_with_mnemonic(_("Show D_EM"));
     page = create_graph_page (widgets->elev_time_box,
                               _("<b>Track Time:</b>"), widgets->w_cur_elev_time,
                               _("<b>Track Height:</b>"), widgets->w_cur_elev_elev,
-                              _("<b>Date/Time:</b>"), widgets->w_cur_elev_time_real,
-                              widgets->w_show_elev_speed, FALSE,
-                              NULL, FALSE);
+                              _("<b>Time/Date:</b>"), widgets->w_cur_elev_time_real,
+                              widgets->w_show_elev_dem, show_elev_dem,
+                              widgets->w_show_elev_speed, show_elev_speed);
+    g_signal_connect (widgets->w_show_elev_dem, "toggled", G_CALLBACK (checkbutton_toggle_cb), widgets);
     g_signal_connect (widgets->w_show_elev_speed, "toggled", G_CALLBACK (checkbutton_toggle_cb), widgets);
     gtk_notebook_append_page(GTK_NOTEBOOK(graphs), page, gtk_label_new(_("Elevation-time")));
   }
@@ -3263,7 +3484,7 @@ void vik_trw_layer_propwin_run ( GtkWindow *parent,
                               _("<b>Track Distance:</b>"), widgets->w_cur_speed_dist,
                               _("<b>Track Speed:</b>"), widgets->w_cur_speed_speed,
                               NULL, NULL,
-                              widgets->w_show_sd_gps_speed, TRUE,
+                              widgets->w_show_sd_gps_speed, show_sd_gps_speed,
                               NULL, FALSE);
     g_signal_connect (widgets->w_show_sd_gps_speed, "toggled", G_CALLBACK (checkbutton_toggle_cb), widgets);
     gtk_notebook_append_page(GTK_NOTEBOOK(graphs), page, gtk_label_new(_("Speed-distance")));