src/viktrwlayer_propwin.c

   1 /*
   2  * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
   3  *
   4  * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net>
   5  * Copyright (C) 2005-2007, Alex Foobarian <foobarian@gmail.com>
   6  * Copyright (C) 2007-2008, Quy Tonthat <qtonthat@gmail.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  *
  22  */
  23
  24 #ifdef HAVE_CONFIG_H
  25 #include "config.h"
  26 #endif
  27
  28 #ifdef HAVE_MATH_H
  29 #include <math.h>
  30 #endif
  31
  32 #include <gtk/gtk.h>
  33 #include <glib/gi18n.h>
  34 #include <time.h>
  35 #ifdef HAVE_STRING_H
  36 #include <string.h>
  37 #endif
  38 #include "coords.h"
  39 #include "vikcoord.h"
  40 #include "viktrack.h"
  41 #include "viktrwlayer.h"
  42 #include "viktrwlayer_propwin.h"
  43 #include "vikwaypoint.h"
  44 #include "dialog.h"
  45 #include "globals.h"
  46 #include "dems.h"
  47
  48 #include "vikviewport.h" /* ugh */
  49 #include "viktreeview.h" /* ugh */
  50 #include <gdk-pixbuf/gdk-pixdata.h>
  51 #include "viklayer.h" /* ugh */
  52 #include "vikaggregatelayer.h"
  53 #include "viklayerspanel.h" /* ugh */
  54
  55 #define PROPWIN_PROFILE_WIDTH 600
  56 #define PROPWIN_PROFILE_HEIGHT 300
  57
  58 #define PROPWIN_LABEL_FONT "Sans 7"
  59
  60 #define MIN_ALT_DIFF 100.0
  61 #define MIN_SPEED_DIFF 5.0
  62
  63 typedef struct _propsaved {
  64   gboolean saved;
  65   gint pos;
  66   GdkImage *img;
  67 } PropSaved;
  68
  69 typedef struct _propwidgets {
  70   gboolean  configure_dialog;
  71   VikTrwLayer *vtl;
  72   VikTrack *tr;
  73   VikLayersPanel *vlp;
  74   gchar *track_name;
  75   gint      profile_width;
  76   gint      profile_height;
  77   GtkWidget *dialog;
  78   GtkWidget *w_comment;
  79   GtkWidget *w_track_length;
  80   GtkWidget *w_tp_count;
  81   GtkWidget *w_segment_count;
  82   GtkWidget *w_duptp_count;
  83   GtkWidget *w_max_speed;
  84   GtkWidget *w_avg_speed;
  85   GtkWidget *w_avg_dist;
  86   GtkWidget *w_elev_range;
  87   GtkWidget *w_elev_gain;
  88   GtkWidget *w_time_start;
  89   GtkWidget *w_time_end;
  90   GtkWidget *w_time_dur;
  91   GtkWidget *w_cur_dist; /*< Current distance */
  92   GtkWidget *w_cur_time; /*< Current time */
  93   gdouble   track_length;
  94   PropSaved elev_graph_saved_img;
  95   PropSaved speed_graph_saved_img;
  96   GtkWidget *elev_box;
  97   GtkWidget *speed_box;
  98   gdouble   *altitudes;
  99   gdouble   *speeds;
 100   VikTrackpoint *marker_tp;
 101   gboolean  is_marker_drawn;
 102 } PropWidgets;
 103
 104 static PropWidgets *prop_widgets_new()
 105 {
 106   PropWidgets *widgets = g_malloc0(sizeof(PropWidgets));
 107
 108   return widgets;
 109 }
 110
 111 static void prop_widgets_free(PropWidgets *widgets)
 112 {
 113   if (widgets->elev_graph_saved_img.img)
 114     g_object_unref(widgets->elev_graph_saved_img.img);
 115   if (widgets->speed_graph_saved_img.img)
 116     g_object_unref(widgets->speed_graph_saved_img.img);
 117   if (widgets->altitudes)
 118     g_free(widgets->altitudes);
 119   if (widgets->speeds)
 120     g_free(widgets->speeds);
 121   g_free(widgets);
 122 }
 123
 124 static void minmax_array(const gdouble *array, gdouble *min, gdouble *max, gboolean NO_ALT_TEST, gint PROFILE_WIDTH)
 125 {
 126   *max = -1000;
 127   *min = 20000;
 128   guint i;
 129   for ( i=0; i < PROFILE_WIDTH; i++ ) {
 130     if ( NO_ALT_TEST || (array[i] != VIK_DEFAULT_ALTITUDE) ) {
 131       if ( array[i] > *max )
 132         *max = array[i];
 133       if ( array[i] < *min )
 134         *min = array[i];
 135     }
 136   }
 137 }
 138
 139 #define MARGIN 70
 140 #define LINES 5
 141 static VikTrackpoint *set_center_at_graph_position(gdouble event_x,
 142                                                    gint img_width,
 143                                                    VikTrwLayer *vtl,
 144                                                    VikLayersPanel *vlp,
 145                                                    VikViewport *vvp,
 146                                                    VikTrack *tr,
 147                                                    gboolean time_base,
 148                                                    gint PROFILE_WIDTH)
 149 {
 150   VikTrackpoint *trackpoint;
 151   gdouble x = event_x - img_width / 2 + PROFILE_WIDTH / 2 - MARGIN / 2;
 152   if (x < 0)
 153     x = 0;
 154   if (x > PROFILE_WIDTH)
 155     x = PROFILE_WIDTH;
 156
 157   if (time_base)
 158     trackpoint = vik_track_get_closest_tp_by_percentage_time ( tr, (gdouble) x / PROFILE_WIDTH, NULL );
 159   else
 160     trackpoint = vik_track_get_closest_tp_by_percentage_dist ( tr, (gdouble) x / PROFILE_WIDTH, NULL );
 161
 162   if ( trackpoint ) {
 163     VikCoord coord = trackpoint->coord;
 164     if ( vlp ) {
 165       vik_viewport_set_center_coord ( vik_layers_panel_get_viewport(vlp), &coord );
 166       vik_layers_panel_emit_update ( vlp );
 167     }
 168     else {
 169       /* since vlp not set, vvp should be valid instead! */
 170       if ( vvp )
 171         vik_viewport_set_center_coord ( vvp, &coord );
 172       vik_layer_emit_update ( VIK_LAYER(vtl) );
 173     }
 174   }
 175   return trackpoint;
 176 }
 177
 178 /**
 179  * Returns whether the marker was drawn or not
 180  */
 181 static void draw_graph_mark (GtkWidget *image,
 182                              gdouble event_x,
 183                              gint img_width,
 184                              GdkGC *gc,
 185                              PropSaved *saved_img,
 186                              gint PROFILE_WIDTH,
 187                              gint PROFILE_HEIGHT,
 188                              gboolean *marker_drawn)
 189 {
 190   GdkPixmap *pix = NULL;
 191   /* the pixmap = margin + graph area */
 192   gdouble x = event_x - img_width/2 + PROFILE_WIDTH/2 + MARGIN/2;
 193
 194   // fprintf(stderr, "event_x=%f img_width=%d x=%f\n", event_x, img_width, x);
 195
 196   gtk_image_get_pixmap(GTK_IMAGE(image), &pix, NULL);
 197   /* Restore previously saved image */
 198   if (saved_img->saved) {
 199     gdk_draw_image(GDK_DRAWABLE(pix), gc, saved_img->img, 0, 0,
 200         saved_img->pos, 0, -1, -1);
 201     saved_img->saved = FALSE;
 202     gtk_widget_queue_draw_area(image,
 203         saved_img->pos + img_width/2 - PROFILE_WIDTH/2 - MARGIN/2, 0,
 204         saved_img->img->width, saved_img->img->height);
 205   }
 206   if ((x >= MARGIN) && (x < (PROFILE_WIDTH + MARGIN))) {
 207     /* Save part of the image */
 208     if (saved_img->img)
 209       gdk_drawable_copy_to_image(GDK_DRAWABLE(pix), saved_img->img,
 210           x, 0, 0, 0, saved_img->img->width, saved_img->img->height);
 211     else
 212       saved_img->img = gdk_drawable_copy_to_image(GDK_DRAWABLE(pix),
 213           saved_img->img, x, 0, 0, 0, 1, PROFILE_HEIGHT);
 214     saved_img->pos = x;
 215     saved_img->saved = TRUE;
 216     gdk_draw_line (GDK_DRAWABLE(pix), gc, x, 0, x, image->allocation.height);
 217     /* redraw the area which contains the line, saved_width is just convenient */
 218     gtk_widget_queue_draw_area(image, event_x, 0, 1, PROFILE_HEIGHT);
 219     *marker_drawn = TRUE;
 220   }
 221   else
 222     *marker_drawn = FALSE;
 223 }
 224
 225 /**
 226  * Return the percentage of how far a trackpoint is a long a track via the time method
 227  */
 228 static gdouble tp_percentage_by_time ( VikTrack *tr, VikTrackpoint *trackpoint )
 229 {
 230   gdouble pc = NAN;
 231   if (trackpoint == NULL)
 232     return pc;
 233   time_t t_start, t_end, t_total;
 234   t_start = VIK_TRACKPOINT(tr->trackpoints->data)->timestamp;
 235   t_end = VIK_TRACKPOINT(g_list_last(tr->trackpoints)->data)->timestamp;
 236   t_total = t_end - t_start;
 237   pc = (gdouble)(trackpoint->timestamp - t_start)/t_total;
 238   return pc;
 239 }
 240
 241 /**
 242  * Return the percentage of how far a trackpoint is a long a track via the distance method
 243  */
 244 static gdouble tp_percentage_by_distance ( VikTrack *tr, VikTrackpoint *trackpoint, gdouble track_length )
 245 {
 246   gdouble pc = NAN;
 247   if (trackpoint == NULL)
 248     return pc;
 249   gdouble dist = 0.0;
 250   GList *iter;
 251   for (iter = tr->trackpoints->next; iter != NULL; iter = iter->next) {
 252     dist += vik_coord_diff(&(VIK_TRACKPOINT(iter->data)->coord),
 253                            &(VIK_TRACKPOINT(iter->prev->data)->coord));
 254     /* Assuming trackpoint is not a copy */
 255     if (trackpoint == VIK_TRACKPOINT(iter->data))
 256       break;
 257   }
 258   if (iter != NULL)
 259     pc = dist/track_length;
 260   return pc;
 261 }
 262
 263 static void track_graph_click( GtkWidget *event_box, GdkEventButton *event, gpointer *pass_along, gboolean is_vt_graph )
 264 {
 265   VikTrack *tr = pass_along[0];
 266   VikLayersPanel *vlp = pass_along[1];
 267   VikViewport *vvp = pass_along[2];
 268   PropWidgets *widgets = pass_along[3];
 269   GList *child = gtk_container_get_children(GTK_CONTAINER(event_box));
 270   GtkWidget *image = GTK_WIDGET(child->data);
 271   GtkWidget *window = gtk_widget_get_toplevel(GTK_WIDGET(event_box));
 272
 273   VikTrackpoint *trackpoint = set_center_at_graph_position(event->x, event_box->allocation.width, widgets->vtl, vlp, vvp, tr, is_vt_graph, widgets->profile_width);
 274   draw_graph_mark(image,
 275                   event->x,
 276                   event_box->allocation.width,
 277                   window->style->black_gc,
 278                   is_vt_graph ? &widgets->speed_graph_saved_img : &widgets->elev_graph_saved_img,
 279                   widgets->profile_width,
 280                   widgets->profile_height,
 281                   &widgets->is_marker_drawn);
 282   g_list_free(child);
 283   widgets->marker_tp = trackpoint;
 284   gtk_dialog_set_response_sensitive(GTK_DIALOG(widgets->dialog), VIK_TRW_LAYER_PROPWIN_SPLIT_MARKER, widgets->is_marker_drawn);
 285
 286   /* draw on the other graph */
 287   if (trackpoint == NULL || widgets->elev_box == NULL || widgets->speed_box == NULL)
 288     /* This test assumes we have only 2 graphs */
 289     return;
 290
 291   gdouble pc = NAN;
 292   gdouble x2;
 293   GList *other_child = gtk_container_get_children(GTK_CONTAINER(
 294                          is_vt_graph ? widgets->elev_box : widgets->speed_box));
 295   GtkWidget *other_image = GTK_WIDGET(other_child->data);
 296   if (is_vt_graph) {
 297     pc = tp_percentage_by_distance ( tr, trackpoint, widgets->track_length );
 298   } else {
 299     pc = tp_percentage_by_time ( tr, trackpoint );
 300   }
 301   if (!isnan(pc)) {
 302     x2 = pc * widgets->profile_width + MARGIN + (event_box->allocation.width/2 - widgets->profile_width/2 - MARGIN/2);
 303     draw_graph_mark(other_image,
 304                     x2,
 305                     event_box->allocation.width,
 306                     window->style->black_gc,
 307                     is_vt_graph ? &widgets->elev_graph_saved_img : &widgets->speed_graph_saved_img,
 308                     widgets->profile_width,
 309                     widgets->profile_height,
 310                     &widgets->is_marker_drawn);
 311   }
 312
 313   g_list_free(other_child);
 314
 315 }
 316
 317 static gboolean track_profile_click( GtkWidget *event_box, GdkEventButton *event, gpointer *pass_along )
 318 {
 319   track_graph_click(event_box, event, pass_along, FALSE);
 320   return TRUE;  /* don't call other (further) callbacks */
 321 }
 322
 323 static gboolean track_vt_click( GtkWidget *event_box, GdkEventButton *event, gpointer *pass_along )
 324 {
 325   track_graph_click(event_box, event, pass_along, TRUE);
 326   return TRUE;  /* don't call other (further) callbacks */
 327 }
 328
 329 void track_profile_move( GtkWidget *image, GdkEventMotion *event, gpointer *pass_along )
 330 {
 331   VikTrack *tr = pass_along[0];
 332   PropWidgets *widgets = pass_along[3];
 333   int mouse_x, mouse_y;
 334   GdkModifierType state;
 335
 336   if (event->is_hint)
 337     gdk_window_get_pointer (event->window, &mouse_x, &mouse_y, &state);
 338   else
 339     mouse_x = event->x;
 340
 341   gdouble x = mouse_x - image->allocation.width / 2 + widgets->profile_width / 2 - MARGIN / 2;
 342   if (x < 0)
 343     x = 0;
 344   if (x > widgets->profile_width)
 345     x = widgets->profile_width;
 346
 347   gdouble meters_from_start;
 348   VikTrackpoint *trackpoint = vik_track_get_closest_tp_by_percentage_dist ( tr, (gdouble) x / widgets->profile_width, &meters_from_start );
 349   if (trackpoint && widgets->w_cur_dist) {
 350     static gchar tmp_buf[20];
 351     vik_units_distance_t dist_units = a_vik_get_units_distance ();
 352     switch (dist_units) {
 353     case VIK_UNITS_DISTANCE_KILOMETRES:
 354       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f km", meters_from_start/1000.0);
 355       break;
 356     case VIK_UNITS_DISTANCE_MILES:
 357       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f miles", VIK_METERS_TO_MILES(meters_from_start) );
 358       break;
 359     default:
 360       g_critical("Houston, we've had a problem. distance=%d", dist_units);
 361     }
 362     gtk_label_set_text(GTK_LABEL(widgets->w_cur_dist), tmp_buf);
 363   }
 364 }
 365
 366 void track_vt_move( GtkWidget *image, GdkEventMotion *event, gpointer *pass_along )
 367 {
 368   VikTrack *tr = pass_along[0];
 369   PropWidgets *widgets = pass_along[3];
 370   int mouse_x, mouse_y;
 371   GdkModifierType state;
 372
 373   if (event->is_hint)
 374     gdk_window_get_pointer (event->window, &mouse_x, &mouse_y, &state);
 375   else
 376     mouse_x = event->x;
 377
 378   gdouble x = mouse_x - image->allocation.width / 2 + widgets->profile_width / 2 - MARGIN / 2;
 379   if (x < 0)
 380     x = 0;
 381   if (x > widgets->profile_width)
 382     x = widgets->profile_width;
 383
 384   time_t seconds_from_start;
 385   VikTrackpoint *trackpoint = vik_track_get_closest_tp_by_percentage_time ( tr, (gdouble) x / widgets->profile_width, &seconds_from_start );
 386   if (trackpoint && widgets->w_cur_time) {
 387     static gchar tmp_buf[20];
 388     guint h, m, s;
 389     h = seconds_from_start/3600;
 390     m = (seconds_from_start - h*3600)/60;
 391     s = seconds_from_start - (3600*h) - (60*m);
 392     g_snprintf(tmp_buf, sizeof(tmp_buf), "%02d:%02d:%02d", h, m, s);
 393
 394     gtk_label_set_text(GTK_LABEL(widgets->w_cur_time), tmp_buf);
 395   }
 396 }
 397
 398 static void draw_dem_alt_speed_dist(VikTrack *tr, GdkDrawable *pix, GdkGC *alt_gc, GdkGC *speed_gc, gdouble alt_offset, gdouble alt_diff, gint width, gint height, gint margin)
 399 {
 400   GList *iter;
 401   gdouble dist = 0;
 402   gdouble max_speed = 0;
 403   gdouble total_length = vik_track_get_length_including_gaps(tr);
 404
 405   for (iter = tr->trackpoints->next; iter; iter = iter->next) {
 406     if (!isnan(VIK_TRACKPOINT(iter->data)->speed))
 407       max_speed = MAX(max_speed, VIK_TRACKPOINT(iter->data)->speed);
 408   }
 409   max_speed = max_speed * 110 / 100;
 410
 411   for (iter = tr->trackpoints->next; iter; iter = iter->next) {
 412     int x, y_alt, y_speed;
 413     gint16 elev = a_dems_get_elev_by_coord(&(VIK_TRACKPOINT(iter->data)->coord), VIK_DEM_INTERPOL_BEST);
 414     elev -= alt_offset;
 415     dist += vik_coord_diff ( &(VIK_TRACKPOINT(iter->data)->coord),
 416       &(VIK_TRACKPOINT(iter->prev->data)->coord) );
 417     x = (width * dist)/total_length + margin;
 418     if ( elev != VIK_DEM_INVALID_ELEVATION ) {
 419       y_alt = height - ((height * elev)/alt_diff);
 420       gdk_draw_rectangle(GDK_DRAWABLE(pix), alt_gc, TRUE, x-2, y_alt-2, 4, 4);
 421     }
 422     if (!isnan(VIK_TRACKPOINT(iter->data)->speed)) {
 423       y_speed = height - (height * VIK_TRACKPOINT(iter->data)->speed)/max_speed;
 424       gdk_draw_rectangle(GDK_DRAWABLE(pix), speed_gc, TRUE, x-2, y_speed-2, 4, 4);
 425     }
 426   }
 427 }
 428
 429 /**
 430  * Draw just the height profile image
 431  */
 432 static void draw_elevations (GtkWidget *image, VikTrack *tr, PropWidgets *widgets )
 433 {
 434   GtkWidget *window;
 435   GdkPixmap *pix;
 436   gdouble mina, maxa;
 437   guint i;
 438
 439   GdkGC *no_alt_info;
 440   GdkGC *dem_alt_gc;
 441   GdkGC *gps_speed_gc;
 442
 443   GdkColor color;
 444
 445   // Free previous allocation
 446   if ( widgets->altitudes )
 447     g_free ( widgets->altitudes );
 448
 449   widgets->altitudes = vik_track_make_elevation_map ( tr, widgets->profile_width );
 450
 451   if ( widgets->altitudes == NULL )
 452     return;
 453
 454   minmax_array(widgets->altitudes, &mina, &maxa, TRUE, widgets->profile_width);
 455   maxa = maxa + ((maxa - mina) * 0.25); // Make visible window a bit bigger than highest point
 456
 457   window = gtk_widget_get_toplevel (widgets->elev_box);
 458
 459   pix = gdk_pixmap_new( window->window, widgets->profile_width + MARGIN, widgets->profile_height, -1 );
 460
 461   gtk_image_set_from_pixmap ( GTK_IMAGE(image), pix, NULL );
 462
 463   no_alt_info = gdk_gc_new ( window->window );
 464   gdk_color_parse ( "yellow", &color );
 465   gdk_gc_set_rgb_fg_color ( no_alt_info, &color);
 466
 467   dem_alt_gc = gdk_gc_new ( window->window );
 468   gdk_color_parse ( "green", &color );
 469   gdk_gc_set_rgb_fg_color ( dem_alt_gc, &color);
 470
 471   gps_speed_gc = gdk_gc_new ( window->window );
 472   gdk_color_parse ( "red", &color );
 473   gdk_gc_set_rgb_fg_color ( gps_speed_gc, &color);
 474
 475   /* clear the image */
 476   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->bg_gc[0],
 477                      TRUE, 0, 0, MARGIN, widgets->profile_height);
 478   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->mid_gc[0],
 479                      TRUE, MARGIN, 0, widgets->profile_width, widgets->profile_height);
 480
 481   /* draw grid */
 482   vik_units_height_t height_units = a_vik_get_units_height ();
 483   for (i=0; i<=LINES; i++) {
 484     PangoFontDescription *pfd;
 485     PangoLayout *pl = gtk_widget_create_pango_layout (GTK_WIDGET(image), NULL);
 486     gchar s[32];
 487     int w, h;
 488
 489     pango_layout_set_alignment (pl, PANGO_ALIGN_RIGHT);
 490     pfd = pango_font_description_from_string (PROPWIN_LABEL_FONT);
 491     pango_layout_set_font_description (pl, pfd);
 492     pango_font_description_free (pfd);
 493     switch (height_units) {
 494     case VIK_UNITS_HEIGHT_METRES:
 495       sprintf(s, "%8dm", (int)(mina + (LINES-i)*(maxa-mina)/LINES));
 496       break;
 497     case VIK_UNITS_HEIGHT_FEET:
 498       sprintf(s, "%8dft", (int)VIK_METERS_TO_FEET(mina + (LINES-i)*(maxa-mina)/LINES));
 499       break;
 500     default:
 501       sprintf(s, "--");
 502       g_critical("Houston, we've had a problem. height=%d", height_units);
 503     }
 504     pango_layout_set_text(pl, s, -1);
 505     pango_layout_get_pixel_size (pl, &w, &h);
 506     gdk_draw_layout(GDK_DRAWABLE(pix), window->style->fg_gc[0], MARGIN-w-3,
 507                     CLAMP((int)i*widgets->profile_height/LINES - h/2, 0, widgets->profile_height-h), pl);
 508
 509     gdk_draw_line (GDK_DRAWABLE(pix), window->style->dark_gc[0],
 510                    MARGIN, widgets->profile_height/LINES * i, MARGIN + widgets->profile_width, widgets->profile_height/LINES * i);
 511     g_object_unref ( G_OBJECT ( pl ) );
 512     pl = NULL;
 513   }
 514
 515   /* draw elevations */
 516   for ( i = 0; i < widgets->profile_width; i++ )
 517     if ( widgets->altitudes[i] == VIK_DEFAULT_ALTITUDE )
 518       gdk_draw_line ( GDK_DRAWABLE(pix), no_alt_info,
 519                       i + MARGIN, 0, i + MARGIN, widgets->profile_height );
 520     else
 521       gdk_draw_line ( GDK_DRAWABLE(pix), window->style->dark_gc[3],
 522                       i + MARGIN, widgets->profile_height, i + MARGIN, widgets->profile_height-widgets->profile_height*(widgets->altitudes[i]-mina)/(maxa-mina) );
 523
 524   draw_dem_alt_speed_dist(tr, GDK_DRAWABLE(pix), dem_alt_gc, gps_speed_gc, mina, maxa - mina, widgets->profile_width, widgets->profile_height, MARGIN);
 525
 526   /* draw border */
 527   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->black_gc, FALSE, MARGIN, 0, widgets->profile_width-1, widgets->profile_height-1);
 528
 529   g_object_unref ( G_OBJECT(pix) );
 530   g_object_unref ( G_OBJECT(no_alt_info) );
 531   g_object_unref ( G_OBJECT(dem_alt_gc) );
 532   g_object_unref ( G_OBJECT(gps_speed_gc) );
 533
 534 }
 535
 536 /**
 537  * Draw just the speed (velocity)/time image
 538  */
 539 static void draw_vt ( GtkWidget *image, VikTrack *tr, PropWidgets *widgets)
 540 {
 541   GtkWidget *window;
 542   GdkPixmap *pix;
 543   gdouble mins, maxs;
 544   guint i;
 545
 546   // Free previous allocation
 547   if ( widgets->speeds )
 548     g_free ( widgets->speeds );
 549
 550   widgets->speeds = vik_track_make_speed_map ( tr, widgets->profile_width );
 551   if ( widgets->speeds == NULL )
 552     return;
 553
 554   GdkGC *gps_speed_gc;
 555   GdkColor color;
 556
 557   window = gtk_widget_get_toplevel (widgets->speed_box);
 558
 559   pix = gdk_pixmap_new( window->window, widgets->profile_width + MARGIN, widgets->profile_height, -1 );
 560
 561   gtk_image_set_from_pixmap ( GTK_IMAGE(image), pix, NULL );
 562
 563   gps_speed_gc = gdk_gc_new ( window->window );
 564   gdk_color_parse ( "red", &color );
 565   gdk_gc_set_rgb_fg_color ( gps_speed_gc, &color);
 566
 567   minmax_array(widgets->speeds, &mins, &maxs, FALSE, widgets->profile_width);
 568   if (mins < 0.0)
 569     mins = 0; /* splines sometimes give negative speeds */
 570   maxs = maxs + ((maxs - mins) * 0.1);
 571   if  (maxs-mins < MIN_SPEED_DIFF) {
 572     maxs = mins + MIN_SPEED_DIFF;
 573   }
 574
 575   /* clear the image */
 576   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->bg_gc[0],
 577                      TRUE, 0, 0, MARGIN, widgets->profile_height);
 578   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->mid_gc[0],
 579                      TRUE, MARGIN, 0, widgets->profile_width, widgets->profile_height);
 580
 581   /* draw grid */
 582   for (i=0; i<=LINES; i++) {
 583     PangoFontDescription *pfd;
 584     PangoLayout *pl = gtk_widget_create_pango_layout (GTK_WIDGET(image), NULL);
 585     gchar s[32];
 586     int w, h;
 587
 588     pango_layout_set_alignment (pl, PANGO_ALIGN_RIGHT);
 589     pfd = pango_font_description_from_string (PROPWIN_LABEL_FONT);
 590     pango_layout_set_font_description (pl, pfd);
 591     pango_font_description_free (pfd);
 592     vik_units_speed_t speed_units = a_vik_get_units_speed ();
 593     switch (speed_units) {
 594     case VIK_UNITS_SPEED_KILOMETRES_PER_HOUR:
 595       sprintf(s, "%6.1fkm/h", VIK_MPS_TO_KPH(mins + (LINES-i)*(maxs-mins)/LINES));
 596       break;
 597     case VIK_UNITS_SPEED_MILES_PER_HOUR:
 598       sprintf(s, "%6.1fmph", VIK_MPS_TO_MPH(mins + (LINES-i)*(maxs-mins)/LINES));
 599       break;
 600     case VIK_UNITS_SPEED_METRES_PER_SECOND:
 601       sprintf(s, "%8dm/s", (int)(mins + (LINES-i)*(maxs-mins)/LINES));
 602       break;
 603     case VIK_UNITS_SPEED_KNOTS:
 604       sprintf(s, "%6.1fknots", VIK_MPS_TO_KNOTS(mins + (LINES-i)*(maxs-mins)/LINES));
 605       break;
 606     default:
 607       sprintf(s, "--");
 608       g_critical("Houston, we've had a problem. speed=%d", speed_units);
 609     }
 610
 611     pango_layout_set_text(pl, s, -1);
 612     pango_layout_get_pixel_size (pl, &w, &h);
 613     gdk_draw_layout(GDK_DRAWABLE(pix), window->style->fg_gc[0], MARGIN-w-3,
 614                     CLAMP((int)i*widgets->profile_height/LINES - h/2, 0, widgets->profile_height-h), pl);
 615
 616     gdk_draw_line (GDK_DRAWABLE(pix), window->style->dark_gc[0],
 617                    MARGIN, widgets->profile_height/LINES * i, MARGIN + widgets->profile_width, widgets->profile_height/LINES * i);
 618     g_object_unref ( G_OBJECT ( pl ) );
 619     pl = NULL;
 620   }
 621
 622
 623   /* draw speeds */
 624   for ( i = 0; i < widgets->profile_width; i++ )
 625       gdk_draw_line ( GDK_DRAWABLE(pix), window->style->dark_gc[3],
 626                       i + MARGIN, widgets->profile_height, i + MARGIN, widgets->profile_height-widgets->profile_height*(widgets->speeds[i]-mins)/(maxs-mins) );
 627
 628
 629   time_t beg_time = VIK_TRACKPOINT(tr->trackpoints->data)->timestamp;
 630   time_t dur =  VIK_TRACKPOINT(g_list_last(tr->trackpoints)->data)->timestamp - beg_time;
 631   GList *iter;
 632   for (iter = tr->trackpoints; iter; iter = iter->next) {
 633     gdouble gps_speed = VIK_TRACKPOINT(iter->data)->speed;
 634     if (isnan(gps_speed))
 635         continue;
 636     int x = MARGIN + widgets->profile_width * (VIK_TRACKPOINT(iter->data)->timestamp - beg_time) / dur;
 637     int y = widgets->profile_height - widgets->profile_height*(gps_speed - mins)/(maxs - mins);
 638     gdk_draw_rectangle(GDK_DRAWABLE(pix), gps_speed_gc, TRUE, x-2, y-2, 4, 4);
 639   }
 640
 641   /* draw border */
 642   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->black_gc, FALSE, MARGIN, 0, widgets->profile_width-1, widgets->profile_height-1);
 643
 644   g_object_unref ( G_OBJECT(pix) );
 645   g_object_unref ( G_OBJECT(gps_speed_gc) );
 646
 647 }
 648 #undef LINES
 649
 650
 651 /**
 652  * Configure the profile & speed/time images
 653  */
 654 static gboolean configure_event ( GtkWidget *widget, GdkEventConfigure *event, gpointer *pass_along )
 655 {
 656   VikTrack *tr = pass_along[0];
 657   PropWidgets *widgets = pass_along[2];
 658
 659   // ATM we receive configure_events when the dialog is moved and so no further action is necessary
 660   if ( !widgets->configure_dialog )
 661     return FALSE;
 662
 663   widgets->configure_dialog = FALSE;
 664
 665   // Draw graphs even if they are not visible
 666
 667   GList *child = NULL;
 668   // Draw elevations
 669   if (widgets->elev_box != NULL) {
 670     child = gtk_container_get_children(GTK_CONTAINER(widgets->elev_box));
 671     draw_elevations (GTK_WIDGET(child->data), tr, widgets );
 672     g_list_free(child);
 673   }
 674
 675   // Draw speeds
 676   if (widgets->speed_box != NULL) {
 677     child = gtk_container_get_children(GTK_CONTAINER(widgets->speed_box));
 678     draw_vt (GTK_WIDGET(child->data), tr, widgets );
 679     g_list_free(child);
 680   }
 681
 682   return FALSE;
 683 }
 684
 685 /**
 686  * Create height profile widgets including the image and callbacks
 687  */
 688 GtkWidget *vik_trw_layer_create_profile ( GtkWidget *window, VikTrack *tr, gpointer vlp, VikViewport *vvp, PropWidgets *widgets, gdouble *min_alt, gdouble *max_alt)
 689 {
 690   GdkPixmap *pix;
 691   GtkWidget *image;
 692   GtkWidget *eventbox;
 693   gpointer *pass_along;
 694
 695   // First allocation
 696   widgets->altitudes = vik_track_make_elevation_map ( tr, widgets->profile_width );
 697
 698   if ( widgets->altitudes == NULL ) {
 699     *min_alt = *max_alt = VIK_DEFAULT_ALTITUDE;
 700     return NULL;
 701   }
 702
 703   minmax_array(widgets->altitudes, min_alt, max_alt, TRUE, widgets->profile_width);
 704
 705   pix = gdk_pixmap_new( window->window, widgets->profile_width + MARGIN, widgets->profile_height, -1 );
 706   image = gtk_image_new_from_pixmap ( pix, NULL );
 707
 708   g_object_unref ( G_OBJECT(pix) );
 709
 710   pass_along = g_malloc ( sizeof(gpointer) * 4 ); /* FIXME: mem leak -- never be freed */
 711   pass_along[0] = tr;
 712   pass_along[1] = vlp;
 713   pass_along[2] = vvp;
 714   pass_along[3] = widgets;
 715
 716   eventbox = gtk_event_box_new ();
 717   g_signal_connect ( G_OBJECT(eventbox), "button_press_event", G_CALLBACK(track_profile_click), pass_along );
 718   g_signal_connect ( G_OBJECT(eventbox), "motion_notify_event", G_CALLBACK(track_profile_move), pass_along );
 719   g_signal_connect_swapped ( G_OBJECT(eventbox), "destroy", G_CALLBACK(g_free), pass_along );
 720   gtk_container_add ( GTK_CONTAINER(eventbox), image );
 721   gtk_widget_set_events (eventbox, GDK_BUTTON_PRESS_MASK | GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_STRUCTURE_MASK);
 722
 723   return eventbox;
 724 }
 725
 726 /**
 727  * Create speed/time widgets including the image and callbacks
 728  */
 729 GtkWidget *vik_trw_layer_create_vtdiag ( GtkWidget *window, VikTrack *tr, gpointer vlp, VikViewport *vvp, PropWidgets *widgets)
 730 {
 731   GdkPixmap *pix;
 732   GtkWidget *image;
 733   GtkWidget *eventbox;
 734   gpointer *pass_along;
 735
 736   // First allocation
 737   widgets->speeds = vik_track_make_speed_map ( tr, widgets->profile_width );
 738   if ( widgets->speeds == NULL )
 739     return NULL;
 740
 741   pass_along = g_malloc ( sizeof(gpointer) * 4 ); /* FIXME: mem leak -- never be freed */
 742   pass_along[0] = tr;
 743   pass_along[1] = vlp;
 744   pass_along[2] = vvp;
 745   pass_along[3] = widgets;
 746
 747   pix = gdk_pixmap_new( window->window, widgets->profile_width + MARGIN, widgets->profile_height, -1 );
 748   image = gtk_image_new_from_pixmap ( pix, NULL );
 749
 750 #if 0
 751   /* XXX this can go out, it's just a helpful dev tool */
 752   {
 753     int j;
 754     GdkGC **colors[8] = { window->style->bg_gc,
 755                           window->style->fg_gc,
 756                           window->style->light_gc,
 757                           window->style->dark_gc,
 758                           window->style->mid_gc,
 759                           window->style->text_gc,
 760                           window->style->base_gc,
 761                           window->style->text_aa_gc };
 762     for (i=0; i<5; i++) {
 763       for (j=0; j<8; j++) {
 764         gdk_draw_rectangle(GDK_DRAWABLE(pix), colors[j][i],
 765                            TRUE, i*20, j*20, 20, 20);
 766         gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->black_gc,
 767                            FALSE, i*20, j*20, 20, 20);
 768       }
 769     }
 770   }
 771 #endif
 772
 773   g_object_unref ( G_OBJECT(pix) );
 774
 775   eventbox = gtk_event_box_new ();
 776   g_signal_connect ( G_OBJECT(eventbox), "button_press_event", G_CALLBACK(track_vt_click), pass_along );
 777   g_signal_connect ( G_OBJECT(eventbox), "motion_notify_event", G_CALLBACK(track_vt_move), pass_along );
 778   g_signal_connect_swapped ( G_OBJECT(eventbox), "destroy", G_CALLBACK(g_free), pass_along );
 779   gtk_container_add ( GTK_CONTAINER(eventbox), image );
 780   gtk_widget_set_events (eventbox, GDK_BUTTON_PRESS_MASK | GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK);
 781
 782   return eventbox;
 783 }
 784 #undef MARGIN
 785
 786 static void propwin_response_cb( GtkDialog *dialog, gint resp, PropWidgets *widgets)
 787 {
 788   VikTrack *tr = widgets->tr;
 789   VikTrwLayer *vtl = widgets->vtl;
 790   gboolean keep_dialog = FALSE;
 791
 792   /* FIXME: check and make sure the track still exists before doing anything to it */
 793   /* Note: destroying diaglog (eg, parent window exit) won't give "response" */
 794   switch (resp) {
 795     case GTK_RESPONSE_DELETE_EVENT: /* received delete event (not from buttons) */
 796     case GTK_RESPONSE_REJECT:
 797       break;
 798     case GTK_RESPONSE_ACCEPT:
 799       vik_track_set_comment(tr, gtk_entry_get_text(GTK_ENTRY(widgets->w_comment)));
 800       break;
 801     case VIK_TRW_LAYER_PROPWIN_REVERSE:
 802       vik_track_reverse(tr);
 803       vik_layer_emit_update ( VIK_LAYER(vtl) );
 804       break;
 805     case VIK_TRW_LAYER_PROPWIN_DEL_DUP:
 806       vik_track_remove_dup_points(tr);
 807       /* above operation could have deleted current_tp or last_tp */
 808       trw_layer_cancel_tps_of_track ( vtl, widgets->track_name );
 809       vik_layer_emit_update ( VIK_LAYER(vtl) );
 810       break;
 811     case VIK_TRW_LAYER_PROPWIN_SPLIT:
 812       {
 813         /* get new tracks, add them, resolve naming conflicts (free if cancel), and delete old. old can still exist on clipboard. */
 814         guint ntracks;
 815         VikTrack **tracks = vik_track_split_into_segments(tr, &ntracks);
 816         gchar *new_tr_name;
 817         guint i;
 818         for ( i = 0; i < ntracks; i++ )
 819         {
 820           g_assert ( tracks[i] );
 821           new_tr_name = g_strdup_printf("%s #%d", widgets->track_name, i+1);
 822           /* if ( (wp_exists) && (! overwrite) ) */
 823           /* don't need to upper case new_tr_name because old tr name was uppercase */
 824           if ( vik_trw_layer_get_track(vtl, new_tr_name ) &&
 825              ( ! a_dialog_yes_or_no ( VIK_GTK_WINDOW_FROM_LAYER(vtl), "The track \"%s\" exists, do you wish to overwrite it?", new_tr_name ) ) )
 826           {
 827             gchar *new_new_tr_name = a_dialog_new_track ( VIK_GTK_WINDOW_FROM_LAYER(vtl), vik_trw_layer_get_tracks(vtl), NULL );
 828             g_free ( new_tr_name );
 829             if (new_new_tr_name)
 830               new_tr_name = new_new_tr_name;
 831             else
 832             {
 833               new_tr_name = NULL;
 834               vik_track_free ( tracks[i] );
 835             }
 836           }
 837           if ( new_tr_name )
 838             vik_trw_layer_add_track ( vtl, new_tr_name, tracks[i] );
 839         }
 840         if ( tracks )
 841         {
 842           g_free ( tracks );
 843           /* Don't let track destroy this dialog */
 844           vik_track_clear_property_dialog(tr);
 845           vik_trw_layer_delete_track ( vtl, widgets->track_name );
 846           vik_layer_emit_update ( VIK_LAYER(vtl) ); /* chase thru the hoops */
 847         }
 848       }
 849       break;
 850     case VIK_TRW_LAYER_PROPWIN_SPLIT_MARKER:
 851       {
 852         GList *iter = tr->trackpoints;
 853         while ((iter = iter->next)) {
 854           if (widgets->marker_tp == VIK_TRACKPOINT(iter->data))
 855             break;
 856         }
 857         if (iter == NULL) {
 858           a_dialog_msg(VIK_GTK_WINDOW_FROM_LAYER(vtl), GTK_MESSAGE_ERROR,
 859                   _("Failed spliting track. Track unchanged"), NULL);
 860           keep_dialog = TRUE;
 861           break;
 862         }
 863
 864         gchar *r_name = g_strdup_printf("%s #R", widgets->track_name);
 865         if (vik_trw_layer_get_track(vtl, r_name ) &&
 866              ( ! a_dialog_yes_or_no( VIK_GTK_WINDOW_FROM_LAYER(vtl),
 867               "The track \"%s\" exists, do you wish to overwrite it?", r_name)))
 868         {
 869           gchar *new_r_name = a_dialog_new_track( VIK_GTK_WINDOW_FROM_LAYER(vtl), vik_trw_layer_get_tracks(vtl), NULL );
 870             if (new_r_name) {
 871               g_free( r_name );
 872               r_name = new_r_name;
 873             }
 874             else {
 875               a_dialog_msg(VIK_GTK_WINDOW_FROM_LAYER(vtl), GTK_MESSAGE_WARNING,
 876                   _("Operation Aborted. Track unchanged"), NULL);
 877               keep_dialog = TRUE;
 878               break;
 879             }
 880         }
 881         iter->prev->next = NULL;
 882         iter->prev = NULL;
 883         VikTrack *tr_right = vik_track_new();
 884         if ( tr->comment )
 885           vik_track_set_comment ( tr_right, tr->comment );
 886         tr_right->visible = tr->visible;
 887         tr_right->trackpoints = iter;
 888
 889         vik_trw_layer_add_track(vtl, r_name, tr_right);
 890         vik_layer_emit_update ( VIK_LAYER(vtl) );
 891       }
 892       break;
 893     default:
 894       fprintf(stderr, "DEBUG: unknown response\n");
 895       return;
 896   }
 897
 898   /* Keep same behaviour for now: destroy dialog if click on any button */
 899   if (!keep_dialog) {
 900     prop_widgets_free(widgets);
 901     vik_track_clear_property_dialog(tr);
 902     gtk_widget_destroy ( GTK_WIDGET(dialog) );
 903   }
 904 }
 905
 906 static GtkWidget *create_graph_page ( GtkWidget *graph,
 907                                       const gchar *markup,
 908                                       GtkWidget *value)
 909 {
 910   GtkWidget *hbox = gtk_hbox_new ( FALSE, 10 );
 911   GtkWidget *vbox = gtk_vbox_new ( FALSE, 10 );
 912   GtkWidget *label = gtk_label_new (NULL);
 913   gtk_box_pack_start (GTK_BOX(vbox), graph, FALSE, FALSE, 0);
 914   gtk_label_set_markup ( GTK_LABEL(label), markup );
 915   gtk_box_pack_start (GTK_BOX(hbox), label, FALSE, FALSE, 0);
 916   gtk_box_pack_start (GTK_BOX(hbox), value, FALSE, FALSE, 0);
 917   gtk_box_pack_start (GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
 918
 919   return vbox;
 920 }
 921
 922 void vik_trw_layer_propwin_run ( GtkWindow *parent, VikTrwLayer *vtl, VikTrack *tr, gpointer vlp, gchar *track_name, VikViewport *vvp )
 923 {
 924   /* FIXME: free widgets when destroy signal received */
 925   PropWidgets *widgets = prop_widgets_new();
 926   widgets->vtl = vtl;
 927   widgets->tr = tr;
 928   widgets->vlp = vlp;
 929   widgets->profile_width  = PROPWIN_PROFILE_WIDTH;
 930   widgets->profile_height = PROPWIN_PROFILE_HEIGHT;
 931   widgets->track_name = track_name;
 932   gchar *title = g_strdup_printf(_("%s - Track Properties"), track_name);
 933   GtkWidget *dialog = gtk_dialog_new_with_buttons (title,
 934                          parent,
 935                          GTK_DIALOG_DESTROY_WITH_PARENT | GTK_DIALOG_NO_SEPARATOR,
 936                          GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
 937                          _("Split at Marker"), VIK_TRW_LAYER_PROPWIN_SPLIT_MARKER,
 938                          _("Split Segments"), VIK_TRW_LAYER_PROPWIN_SPLIT,
 939                          _("Reverse"),        VIK_TRW_LAYER_PROPWIN_REVERSE,
 940                          _("Delete Dupl."),   VIK_TRW_LAYER_PROPWIN_DEL_DUP,
 941                          GTK_STOCK_OK,     GTK_RESPONSE_ACCEPT,
 942                          NULL);
 943   widgets->dialog = dialog;
 944   g_free(title);
 945   g_signal_connect(dialog, "response", G_CALLBACK(propwin_response_cb), widgets);
 946   GtkTable *table;
 947   gdouble tr_len;
 948   guint32 tp_count, seg_count;
 949
 950   gdouble min_alt, max_alt;
 951   widgets->elev_box = vik_trw_layer_create_profile(GTK_WIDGET(parent), tr, vlp, vvp, widgets, &min_alt, &max_alt);
 952   widgets->speed_box = vik_trw_layer_create_vtdiag(GTK_WIDGET(parent), tr, vlp, vvp, widgets);
 953   GtkWidget *graphs = gtk_notebook_new();
 954
 955   GtkWidget *content[20];
 956   int cnt;
 957   int i;
 958
 959   static gchar *label_texts[] = { N_("<b>Comment:</b>"), N_("<b>Track Length:</b>"), N_("<b>Trackpoints:</b>"), N_("<b>Segments:</b>"), N_("<b>Duplicate Points:</b>"), N_("<b>Max Speed:</b>"), N_("<b>Avg. Speed:</b>"), N_("<b>Avg. Dist. Between TPs:</b>"), N_("<b>Elevation Range:</b>"), N_("<b>Total Elevation Gain/Loss:</b>"), N_("<b>Start:</b>"), N_("<b>End:</b>"), N_("<b>Duration:</b>") };
 960   static gchar tmp_buf[50];
 961   gdouble tmp_speed;
 962
 963   cnt = 0;
 964   widgets->w_comment = gtk_entry_new ();
 965   if ( tr->comment )
 966     gtk_entry_set_text ( GTK_ENTRY(widgets->w_comment), tr->comment );
 967   g_signal_connect_swapped ( widgets->w_comment, "activate", G_CALLBACK(a_dialog_response_accept), GTK_DIALOG(dialog) );
 968   content[cnt++] = widgets->w_comment;
 969
 970   vik_units_distance_t dist_units = a_vik_get_units_distance ();
 971
 972   tr_len = widgets->track_length = vik_track_get_length(tr);
 973   switch (dist_units) {
 974   case VIK_UNITS_DISTANCE_KILOMETRES:
 975     g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f km", tr_len/1000.0 );
 976     break;
 977   case VIK_UNITS_DISTANCE_MILES:
 978     g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f miles", VIK_METERS_TO_MILES(tr_len) );
 979     break;
 980   default:
 981     g_critical("Houston, we've had a problem. distance=%d", dist_units);
 982   }
 983   widgets->w_track_length = content[cnt++] = gtk_label_new ( tmp_buf );
 984
 985   tp_count = vik_track_get_tp_count(tr);
 986   g_snprintf(tmp_buf, sizeof(tmp_buf), "%u", tp_count );
 987   widgets->w_tp_count = content[cnt++] = gtk_label_new ( tmp_buf );
 988
 989   seg_count = vik_track_get_segment_count(tr) ;
 990   g_snprintf(tmp_buf, sizeof(tmp_buf), "%u", seg_count );
 991   widgets->w_segment_count = content[cnt++] = gtk_label_new ( tmp_buf );
 992
 993   g_snprintf(tmp_buf, sizeof(tmp_buf), "%lu", vik_track_get_dup_point_count(tr) );
 994   widgets->w_duptp_count = content[cnt++] = gtk_label_new ( tmp_buf );
 995
 996   vik_units_speed_t speed_units = a_vik_get_units_speed ();
 997   tmp_speed = vik_track_get_max_speed(tr);
 998   if ( tmp_speed == 0 )
 999     g_snprintf(tmp_buf, sizeof(tmp_buf), _("No Data"));
1000   else {
1001     switch (speed_units) {
1002     case VIK_UNITS_SPEED_KILOMETRES_PER_HOUR:
1003       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f km/h", VIK_MPS_TO_KPH(tmp_speed));
1004       break;
1005     case VIK_UNITS_SPEED_MILES_PER_HOUR:
1006       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f mph", VIK_MPS_TO_MPH(tmp_speed));
1007       break;
1008     case VIK_UNITS_SPEED_METRES_PER_SECOND:
1009       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f m/s", tmp_speed );
1010       break;
1011     case VIK_UNITS_SPEED_KNOTS:
1012       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f knots", VIK_MPS_TO_KNOTS(tmp_speed));
1013       break;
1014     default:
1015       g_snprintf (tmp_buf, sizeof(tmp_buf), "--" );
1016       g_critical("Houston, we've had a problem. speed=%d", speed_units);
1017     }
1018   }
1019   widgets->w_max_speed = content[cnt++] = gtk_label_new ( tmp_buf );
1020
1021   tmp_speed = vik_track_get_average_speed(tr);
1022   if ( tmp_speed == 0 )
1023     g_snprintf(tmp_buf, sizeof(tmp_buf), _("No Data"));
1024   else {
1025     switch (speed_units) {
1026     case VIK_UNITS_SPEED_KILOMETRES_PER_HOUR:
1027       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f km/h", VIK_MPS_TO_KPH(tmp_speed));
1028       break;
1029     case VIK_UNITS_SPEED_MILES_PER_HOUR:
1030       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f mph", VIK_MPS_TO_MPH(tmp_speed));
1031       break;
1032     case VIK_UNITS_SPEED_METRES_PER_SECOND:
1033       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f m/s", tmp_speed );
1034       break;
1035     case VIK_UNITS_SPEED_KNOTS:
1036       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f knots", VIK_MPS_TO_KNOTS(tmp_speed));
1037       break;
1038     default:
1039       g_snprintf (tmp_buf, sizeof(tmp_buf), "--" );
1040       g_critical("Houston, we've had a problem. speed=%d", speed_units);
1041     }
1042   }
1043   widgets->w_avg_speed = content[cnt++] = gtk_label_new ( tmp_buf );
1044
1045   switch (dist_units) {
1046   case VIK_UNITS_DISTANCE_KILOMETRES:
1047     // Even though kilometres, the average distance between points is going to be quite small so keep in metres
1048     g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f m", (tp_count - seg_count) == 0 ? 0 : tr_len / ( tp_count - seg_count ) );
1049     break;
1050   case VIK_UNITS_DISTANCE_MILES:
1051     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 )) );
1052     break;
1053   default:
1054     g_critical("Houston, we've had a problem. distance=%d", dist_units);
1055   }
1056   widgets->w_avg_dist = content[cnt++] = gtk_label_new ( tmp_buf );
1057
1058   vik_units_height_t height_units = a_vik_get_units_height ();
1059   if ( min_alt == VIK_DEFAULT_ALTITUDE )
1060     g_snprintf(tmp_buf, sizeof(tmp_buf), _("No Data"));
1061   else {
1062     switch (height_units) {
1063     case VIK_UNITS_HEIGHT_METRES:
1064       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.0f m - %.0f m", min_alt, max_alt );
1065       break;
1066     case VIK_UNITS_HEIGHT_FEET:
1067       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.0f feet - %.0f feet", VIK_METERS_TO_FEET(min_alt), VIK_METERS_TO_FEET(max_alt) );
1068       break;
1069     default:
1070       g_snprintf(tmp_buf, sizeof(tmp_buf), "--" );
1071       g_critical("Houston, we've had a problem. height=%d", height_units);
1072     }
1073   }
1074   widgets->w_elev_range = content[cnt++] = gtk_label_new ( tmp_buf );
1075
1076   vik_track_get_total_elevation_gain(tr, &max_alt, &min_alt );
1077   if ( min_alt == VIK_DEFAULT_ALTITUDE )
1078     g_snprintf(tmp_buf, sizeof(tmp_buf), _("No Data"));
1079   else {
1080     switch (height_units) {
1081     case VIK_UNITS_HEIGHT_METRES:
1082       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.0f m / %.0f m", max_alt, min_alt );
1083       break;
1084     case VIK_UNITS_HEIGHT_FEET:
1085       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.0f feet / %.0f feet", VIK_METERS_TO_FEET(max_alt), VIK_METERS_TO_FEET(min_alt) );
1086       break;
1087     default:
1088       g_snprintf(tmp_buf, sizeof(tmp_buf), "--" );
1089       g_critical("Houston, we've had a problem. height=%d", height_units);
1090     }
1091   }
1092   widgets->w_elev_gain = content[cnt++] = gtk_label_new ( tmp_buf );
1093
1094 #if 0
1095 #define PACK(w) gtk_box_pack_start (GTK_BOX(right_vbox), w, FALSE, FALSE, 0);
1096   gtk_box_pack_start (GTK_BOX(right_vbox), e_cmt, FALSE, FALSE, 0);
1097   PACK(l_len);
1098   PACK(l_tps);
1099   PACK(l_segs);
1100   PACK(l_dups);
1101   PACK(l_maxs);
1102   PACK(l_avgs);
1103   PACK(l_avgd);
1104   PACK(l_elev);
1105   PACK(l_galo);
1106 #undef PACK;
1107 #endif
1108
1109   if ( tr->trackpoints && VIK_TRACKPOINT(tr->trackpoints->data)->timestamp )
1110   {
1111     time_t t1, t2;
1112     t1 = VIK_TRACKPOINT(tr->trackpoints->data)->timestamp;
1113     t2 = VIK_TRACKPOINT(g_list_last(tr->trackpoints)->data)->timestamp;
1114
1115     strncpy(tmp_buf, ctime(&t1), sizeof(tmp_buf));
1116     tmp_buf[sizeof(tmp_buf)-1] = 0;
1117     g_strchomp(tmp_buf);
1118     widgets->w_time_start = content[cnt++] = gtk_label_new(tmp_buf);
1119
1120     strncpy(tmp_buf, ctime(&t2), sizeof(tmp_buf));
1121     tmp_buf[sizeof(tmp_buf)-1] = 0;
1122     g_strchomp(tmp_buf);
1123     widgets->w_time_end = content[cnt++] = gtk_label_new(tmp_buf);
1124
1125     g_snprintf(tmp_buf, sizeof(tmp_buf), _("%d minutes"), (int)(t2-t1)/60);
1126     widgets->w_time_dur = content[cnt++] = gtk_label_new(tmp_buf);
1127   } else {
1128     widgets->w_time_start = content[cnt++] = gtk_label_new(_("No Data"));
1129     widgets->w_time_end = content[cnt++] = gtk_label_new(_("No Data"));
1130     widgets->w_time_dur = content[cnt++] = gtk_label_new(_("No Data"));
1131   }
1132
1133   table = GTK_TABLE(gtk_table_new (cnt, 2, FALSE));
1134   gtk_table_set_col_spacing (table, 0, 10);
1135   for (i=0; i<cnt; i++) {
1136     GtkWidget *label;
1137
1138     label = gtk_label_new(NULL);
1139     gtk_misc_set_alignment ( GTK_MISC(label), 1, 0 );
1140     gtk_label_set_markup ( GTK_LABEL(label), _(label_texts[i]) );
1141     gtk_table_attach_defaults ( table, label, 0, 1, i, i+1 );
1142     if (GTK_IS_MISC(content[i])) {
1143       gtk_misc_set_alignment ( GTK_MISC(content[i]), 0, 0 );
1144     }
1145     gtk_table_attach_defaults ( table, content[i], 1, 2, i, i+1 );
1146   }
1147
1148   gtk_notebook_append_page(GTK_NOTEBOOK(graphs), GTK_WIDGET(table), gtk_label_new(_("Statistics")));
1149
1150   if ( widgets->elev_box ) {
1151     GtkWidget *page = NULL;
1152     widgets->w_cur_dist = gtk_label_new(_("No Data"));
1153     page = create_graph_page (widgets->elev_box, _("<b>Track Distance:</b>"), widgets->w_cur_dist );
1154     gtk_notebook_append_page(GTK_NOTEBOOK(graphs), page, gtk_label_new(_("Elevation-distance")));
1155   }
1156
1157   if ( widgets->speed_box ) {
1158     GtkWidget *page = NULL;
1159     widgets->w_cur_time = gtk_label_new(_("No Data"));
1160     page = create_graph_page (widgets->speed_box, _("<b>Track Time:</b>"), widgets->w_cur_time );
1161     gtk_notebook_append_page(GTK_NOTEBOOK(graphs), page, gtk_label_new(_("Speed-time")));
1162   }
1163
1164   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), graphs, FALSE, FALSE, 0);
1165
1166   gtk_dialog_set_response_sensitive(GTK_DIALOG(dialog), VIK_TRW_LAYER_PROPWIN_SPLIT_MARKER, FALSE);
1167   if (seg_count <= 1)
1168     gtk_dialog_set_response_sensitive(GTK_DIALOG(dialog), VIK_TRW_LAYER_PROPWIN_SPLIT, FALSE);
1169   if (vik_track_get_dup_point_count(tr) <= 0)
1170     gtk_dialog_set_response_sensitive(GTK_DIALOG(dialog), VIK_TRW_LAYER_PROPWIN_DEL_DUP, FALSE);
1171
1172   gpointer *pass_along;
1173   pass_along = g_malloc ( sizeof(gpointer) * 3 ); /* FIXME: mem leak -- never be freed */
1174   pass_along[0] = tr;
1175   pass_along[1] = vlp;
1176   pass_along[2] = widgets;
1177
1178   // On dialog realization configure_event casues the graphs to be initially drawn
1179   widgets->configure_dialog = TRUE;
1180   g_signal_connect ( G_OBJECT(dialog), "configure-event", G_CALLBACK (configure_event), pass_along);
1181
1182   vik_track_set_property_dialog(tr, dialog);
1183   gtk_dialog_set_default_response ( GTK_DIALOG(dialog), GTK_RESPONSE_ACCEPT );
1184   gtk_widget_show_all ( dialog );
1185 }