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   GdkImage *img;
  66 } PropSaved;
  67
  68 typedef struct _propwidgets {
  69   gboolean  configure_dialog;
  70   VikTrwLayer *vtl;
  71   VikTrack *tr;
  72   VikLayersPanel *vlp;
  73   gchar *track_name;
  74   gint      profile_width;
  75   gint      profile_height;
  76   gint      profile_width_old;
  77   gint      profile_height_old;
  78   gint      profile_width_offset;
  79   gint      profile_height_offset;
  80   GtkWidget *dialog;
  81   GtkWidget *w_comment;
  82   GtkWidget *w_track_length;
  83   GtkWidget *w_tp_count;
  84   GtkWidget *w_segment_count;
  85   GtkWidget *w_duptp_count;
  86   GtkWidget *w_max_speed;
  87   GtkWidget *w_avg_speed;
  88   GtkWidget *w_avg_dist;
  89   GtkWidget *w_elev_range;
  90   GtkWidget *w_elev_gain;
  91   GtkWidget *w_time_start;
  92   GtkWidget *w_time_end;
  93   GtkWidget *w_time_dur;
  94   GtkWidget *w_cur_dist; /*< Current distance */
  95   GtkWidget *w_cur_elevation;
  96   GtkWidget *w_cur_time; /*< Current time */
  97   GtkWidget *w_cur_speed;
  98   GtkWidget *w_show_dem;
  99   GtkWidget *w_show_alt_gps_speed;
 100   GtkWidget *w_show_gps_speed;
 101   gdouble   track_length;
 102   PropSaved elev_graph_saved_img;
 103   PropSaved speed_graph_saved_img;
 104   GtkWidget *elev_box;
 105   GtkWidget *speed_box;
 106   gdouble   *altitudes;
 107   gdouble   min_altitude;
 108   gdouble   max_altitude;
 109   gdouble   *speeds;
 110   gdouble   min_speed;
 111   gdouble   max_speed;
 112   VikTrackpoint *marker_tp;
 113   gboolean  is_marker_drawn;
 114   VikTrackpoint *blob_tp;
 115   gboolean  is_blob_drawn;
 116 } PropWidgets;
 117
 118 static PropWidgets *prop_widgets_new()
 119 {
 120   PropWidgets *widgets = g_malloc0(sizeof(PropWidgets));
 121
 122   return widgets;
 123 }
 124
 125 static void prop_widgets_free(PropWidgets *widgets)
 126 {
 127   if (widgets->elev_graph_saved_img.img)
 128     g_object_unref(widgets->elev_graph_saved_img.img);
 129   if (widgets->speed_graph_saved_img.img)
 130     g_object_unref(widgets->speed_graph_saved_img.img);
 131   if (widgets->altitudes)
 132     g_free(widgets->altitudes);
 133   if (widgets->speeds)
 134     g_free(widgets->speeds);
 135   g_free(widgets);
 136 }
 137
 138 static void minmax_array(const gdouble *array, gdouble *min, gdouble *max, gboolean NO_ALT_TEST, gint PROFILE_WIDTH)
 139 {
 140   *max = -1000;
 141   *min = 20000;
 142   guint i;
 143   for ( i=0; i < PROFILE_WIDTH; i++ ) {
 144     if ( NO_ALT_TEST || (array[i] != VIK_DEFAULT_ALTITUDE) ) {
 145       if ( array[i] > *max )
 146         *max = array[i];
 147       if ( array[i] < *min )
 148         *min = array[i];
 149     }
 150   }
 151 }
 152
 153 #define MARGIN 70
 154 #define LINES 5
 155 static VikTrackpoint *set_center_at_graph_position(gdouble event_x,
 156                                                    gint img_width,
 157                                                    VikTrwLayer *vtl,
 158                                                    VikLayersPanel *vlp,
 159                                                    VikViewport *vvp,
 160                                                    VikTrack *tr,
 161                                                    gboolean time_base,
 162                                                    gint PROFILE_WIDTH)
 163 {
 164   VikTrackpoint *trackpoint;
 165   gdouble x = event_x - img_width / 2 + PROFILE_WIDTH / 2 - MARGIN / 2;
 166   if (x < 0)
 167     x = 0;
 168   if (x > PROFILE_WIDTH)
 169     x = PROFILE_WIDTH;
 170
 171   if (time_base)
 172     trackpoint = vik_track_get_closest_tp_by_percentage_time ( tr, (gdouble) x / PROFILE_WIDTH, NULL );
 173   else
 174     trackpoint = vik_track_get_closest_tp_by_percentage_dist ( tr, (gdouble) x / PROFILE_WIDTH, NULL );
 175
 176   if ( trackpoint ) {
 177     VikCoord coord = trackpoint->coord;
 178     if ( vlp ) {
 179       vik_viewport_set_center_coord ( vik_layers_panel_get_viewport(vlp), &coord );
 180       vik_layers_panel_emit_update ( vlp );
 181     }
 182     else {
 183       /* since vlp not set, vvp should be valid instead! */
 184       if ( vvp )
 185         vik_viewport_set_center_coord ( vvp, &coord );
 186       vik_layer_emit_update ( VIK_LAYER(vtl) );
 187     }
 188   }
 189   return trackpoint;
 190 }
 191
 192 /**
 193  * Returns whether the marker was drawn or not and whether the blob was drawn or not
 194  */
 195 static void save_image_and_draw_graph_marks (GtkWidget *image,
 196                                              gdouble marker_x,
 197                                              GdkGC *gc,
 198                                              gint blob_x,
 199                                              gint blob_y,
 200                                              PropSaved *saved_img,
 201                                              gint PROFILE_WIDTH,
 202                                              gint PROFILE_HEIGHT,
 203                                              gboolean *marker_drawn,
 204                                              gboolean *blob_drawn)
 205 {
 206   GdkPixmap *pix = NULL;
 207   /* the pixmap = margin + graph area */
 208   gtk_image_get_pixmap(GTK_IMAGE(image), &pix, NULL);
 209
 210   /* Restore previously saved image */
 211   if (saved_img->saved) {
 212     gdk_draw_image(GDK_DRAWABLE(pix), gc, saved_img->img, 0, 0, 0, 0, MARGIN+PROFILE_WIDTH, PROFILE_HEIGHT);
 213     saved_img->saved = FALSE;
 214   }
 215
 216   // ATM always save whole image - as anywhere could have changed
 217   if (saved_img->img)
 218     gdk_drawable_copy_to_image(GDK_DRAWABLE(pix), saved_img->img, 0, 0, 0, 0, MARGIN+PROFILE_WIDTH, PROFILE_HEIGHT);
 219   else
 220     saved_img->img = gdk_drawable_copy_to_image(GDK_DRAWABLE(pix), saved_img->img, 0, 0, 0, 0, MARGIN+PROFILE_WIDTH, PROFILE_HEIGHT);
 221   saved_img->saved = TRUE;
 222
 223   if ((marker_x >= MARGIN) && (marker_x < (PROFILE_WIDTH + MARGIN))) {
 224     gdk_draw_line (GDK_DRAWABLE(pix), gc, marker_x, 0, marker_x, image->allocation.height);
 225     *marker_drawn = TRUE;
 226   }
 227   else
 228     *marker_drawn = FALSE;
 229
 230   // Draw a square blob to indicate where we are on track for this graph
 231   if ( (blob_x >= MARGIN) && (blob_x < (PROFILE_WIDTH + MARGIN)) && (blob_y < PROFILE_HEIGHT) ) {
 232     gdk_draw_rectangle (GDK_DRAWABLE(pix), gc, TRUE, blob_x-3, blob_y-3, 6, 6);
 233     *blob_drawn = TRUE;
 234   }
 235   else
 236     *blob_drawn = FALSE;
 237
 238   // Anywhere on image could have changed
 239   if (*marker_drawn || *blob_drawn)
 240     gtk_widget_queue_draw(image);
 241 }
 242
 243 /**
 244  * Return the percentage of how far a trackpoint is a long a track via the time method
 245  */
 246 static gdouble tp_percentage_by_time ( VikTrack *tr, VikTrackpoint *trackpoint )
 247 {
 248   gdouble pc = NAN;
 249   if (trackpoint == NULL)
 250     return pc;
 251   time_t t_start, t_end, t_total;
 252   t_start = VIK_TRACKPOINT(tr->trackpoints->data)->timestamp;
 253   t_end = VIK_TRACKPOINT(g_list_last(tr->trackpoints)->data)->timestamp;
 254   t_total = t_end - t_start;
 255   pc = (gdouble)(trackpoint->timestamp - t_start)/t_total;
 256   return pc;
 257 }
 258
 259 /**
 260  * Return the percentage of how far a trackpoint is a long a track via the distance method
 261  */
 262 static gdouble tp_percentage_by_distance ( VikTrack *tr, VikTrackpoint *trackpoint, gdouble track_length )
 263 {
 264   gdouble pc = NAN;
 265   if (trackpoint == NULL)
 266     return pc;
 267   gdouble dist = 0.0;
 268   GList *iter;
 269   for (iter = tr->trackpoints->next; iter != NULL; iter = iter->next) {
 270     dist += vik_coord_diff(&(VIK_TRACKPOINT(iter->data)->coord),
 271                            &(VIK_TRACKPOINT(iter->prev->data)->coord));
 272     /* Assuming trackpoint is not a copy */
 273     if (trackpoint == VIK_TRACKPOINT(iter->data))
 274       break;
 275   }
 276   if (iter != NULL)
 277     pc = dist/track_length;
 278   return pc;
 279 }
 280
 281 static void track_graph_click( GtkWidget *event_box, GdkEventButton *event, gpointer *pass_along, gboolean is_vt_graph )
 282 {
 283   VikTrack *tr = pass_along[0];
 284   VikLayersPanel *vlp = pass_along[1];
 285   VikViewport *vvp = pass_along[2];
 286   PropWidgets *widgets = pass_along[3];
 287   GList *child = gtk_container_get_children(GTK_CONTAINER(event_box));
 288   GtkWidget *image = GTK_WIDGET(child->data);
 289   GtkWidget *window = gtk_widget_get_toplevel(GTK_WIDGET(event_box));
 290
 291   VikTrackpoint *trackpoint = set_center_at_graph_position(event->x, event_box->allocation.width, widgets->vtl, vlp, vvp, tr, is_vt_graph, widgets->profile_width);
 292   gdouble xm = event->x - event_box->allocation.width/2 + widgets->profile_width/2 + MARGIN/2;
 293   save_image_and_draw_graph_marks(image,
 294                                   xm,
 295                                   window->style->black_gc,
 296                                   -1, // Don't draw blob on clicks
 297                                   0,
 298                                   is_vt_graph ? &widgets->speed_graph_saved_img : &widgets->elev_graph_saved_img,
 299                                   widgets->profile_width,
 300                                   widgets->profile_height,
 301                                   &widgets->is_marker_drawn,
 302                                   &widgets->is_blob_drawn);
 303   g_list_free(child);
 304   widgets->marker_tp = trackpoint;
 305   gtk_dialog_set_response_sensitive(GTK_DIALOG(widgets->dialog), VIK_TRW_LAYER_PROPWIN_SPLIT_MARKER, widgets->is_marker_drawn);
 306
 307   /* draw on the other graph */
 308   if (trackpoint == NULL || widgets->elev_box == NULL || widgets->speed_box == NULL)
 309     /* This test assumes we have only 2 graphs */
 310     return;
 311
 312   gdouble pc = NAN;
 313   GList *other_child = gtk_container_get_children(GTK_CONTAINER(
 314                          is_vt_graph ? widgets->elev_box : widgets->speed_box));
 315   GtkWidget *other_image = GTK_WIDGET(other_child->data);
 316   if (is_vt_graph) {
 317     pc = tp_percentage_by_distance ( tr, trackpoint, widgets->track_length );
 318   } else {
 319     pc = tp_percentage_by_time ( tr, trackpoint );
 320   }
 321   if (!isnan(pc)) {
 322     gdouble x2 = pc * widgets->profile_width + MARGIN;
 323     save_image_and_draw_graph_marks(other_image,
 324                                     x2,
 325                                     window->style->black_gc,
 326                                     -1, // Don't draw blob on clicks
 327                                     0,
 328                                     is_vt_graph ? &widgets->elev_graph_saved_img : &widgets->speed_graph_saved_img,
 329                                     widgets->profile_width,
 330                                     widgets->profile_height,
 331                                     &widgets->is_marker_drawn,
 332                                     &widgets->is_blob_drawn);
 333   }
 334
 335   g_list_free(other_child);
 336
 337 }
 338
 339 static gboolean track_profile_click( GtkWidget *event_box, GdkEventButton *event, gpointer *pass_along )
 340 {
 341   track_graph_click(event_box, event, pass_along, FALSE);
 342   return TRUE;  /* don't call other (further) callbacks */
 343 }
 344
 345 static gboolean track_vt_click( GtkWidget *event_box, GdkEventButton *event, gpointer *pass_along )
 346 {
 347   track_graph_click(event_box, event, pass_along, TRUE);
 348   return TRUE;  /* don't call other (further) callbacks */
 349 }
 350
 351 /**
 352  * Calculate y position for blob on elevation graph
 353  */
 354 static gint blobby_altitude ( gdouble x_blob, PropWidgets *widgets )
 355 {
 356   gint ix = (gint)x_blob;
 357   // Ensure ix is inbounds
 358   if (ix == widgets->profile_width)
 359     ix--;
 360
 361   gdouble diff = widgets->max_altitude - widgets->min_altitude;
 362   gint y_blob = 0;
 363   // Ensure no divide by zero
 364   if (diff > 0.0)
 365     y_blob = widgets->profile_height-widgets->profile_height*(widgets->altitudes[ix]-widgets->min_altitude)/(widgets->max_altitude-widgets->min_altitude);
 366
 367   return y_blob;
 368 }
 369
 370 /**
 371  * Calculate y position for blob on speed graph
 372  */
 373 static gint blobby_speed ( gdouble x_blob, PropWidgets *widgets )
 374 {
 375   gint ix = (gint)x_blob;
 376   // Ensure ix is inbounds
 377   if (ix == widgets->profile_width)
 378     ix--;
 379
 380   gdouble diff = widgets->max_speed - widgets->min_speed;
 381   gint y_blob = 0;
 382   // Ensure no divide by zero
 383   if (diff > 0.0)
 384     y_blob = widgets->profile_height-widgets->profile_height*(widgets->speeds[ix]-widgets->min_speed)/(widgets->max_speed-widgets->min_speed);
 385
 386   return y_blob;
 387 }
 388
 389 void track_profile_move( GtkWidget *event_box, GdkEventMotion *event, gpointer *pass_along )
 390 {
 391   VikTrack *tr = pass_along[0];
 392   PropWidgets *widgets = pass_along[3];
 393   int mouse_x, mouse_y;
 394   GdkModifierType state;
 395
 396   if (event->is_hint)
 397     gdk_window_get_pointer (event->window, &mouse_x, &mouse_y, &state);
 398   else
 399     mouse_x = event->x;
 400
 401   gdouble x = mouse_x - event_box->allocation.width / 2 + widgets->profile_width / 2 - MARGIN / 2;
 402   if (x < 0)
 403     x = 0;
 404   if (x > widgets->profile_width)
 405     x = widgets->profile_width;
 406
 407   gdouble meters_from_start;
 408   VikTrackpoint *trackpoint = vik_track_get_closest_tp_by_percentage_dist ( tr, (gdouble) x / widgets->profile_width, &meters_from_start );
 409   if (trackpoint && widgets->w_cur_dist) {
 410     static gchar tmp_buf[20];
 411     vik_units_distance_t dist_units = a_vik_get_units_distance ();
 412     switch (dist_units) {
 413     case VIK_UNITS_DISTANCE_KILOMETRES:
 414       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f km", meters_from_start/1000.0);
 415       break;
 416     case VIK_UNITS_DISTANCE_MILES:
 417       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f miles", VIK_METERS_TO_MILES(meters_from_start) );
 418       break;
 419     default:
 420       g_critical("Houston, we've had a problem. distance=%d", dist_units);
 421     }
 422     gtk_label_set_text(GTK_LABEL(widgets->w_cur_dist), tmp_buf);
 423   }
 424
 425   // Show track elevation for this position - to the nearest whole number
 426   if (trackpoint && widgets->w_cur_elevation) {
 427     static gchar tmp_buf[20];
 428     if (a_vik_get_units_height () == VIK_UNITS_HEIGHT_FEET)
 429       g_snprintf(tmp_buf, sizeof(tmp_buf), "%d ft", (int)VIK_METERS_TO_FEET(trackpoint->altitude));
 430     else
 431       g_snprintf(tmp_buf, sizeof(tmp_buf), "%d m", (int)trackpoint->altitude);
 432     gtk_label_set_text(GTK_LABEL(widgets->w_cur_elevation), tmp_buf);
 433   }
 434
 435   widgets->blob_tp = trackpoint;
 436
 437   if ( widgets->altitudes == NULL )
 438     return;
 439
 440   GtkWidget *window = gtk_widget_get_toplevel (event_box);
 441   GList *child = gtk_container_get_children(GTK_CONTAINER(event_box));
 442   GtkWidget *image = GTK_WIDGET(child->data);
 443
 444   gint y_blob = blobby_altitude (x, widgets);
 445
 446   gdouble marker_x = -1.0; // i.e. Don't draw unless we get a valid value
 447   if (widgets->is_marker_drawn) {
 448     gdouble pc = tp_percentage_by_distance ( tr, widgets->marker_tp, widgets->track_length );
 449     if (!isnan(pc)) {
 450       marker_x = (pc * widgets->profile_width) + MARGIN;
 451     }
 452   }
 453
 454   save_image_and_draw_graph_marks (image,
 455                                    marker_x,
 456                                    window->style->black_gc,
 457                                    MARGIN+x,
 458                                    y_blob,
 459                                    &widgets->elev_graph_saved_img,
 460                                    widgets->profile_width,
 461                                    widgets->profile_height,
 462                                    &widgets->is_marker_drawn,
 463                                    &widgets->is_blob_drawn);
 464
 465   g_list_free(child);
 466 }
 467
 468 void track_vt_move( GtkWidget *event_box, GdkEventMotion *event, gpointer *pass_along )
 469 {
 470   VikTrack *tr = pass_along[0];
 471   PropWidgets *widgets = pass_along[3];
 472   int mouse_x, mouse_y;
 473   GdkModifierType state;
 474
 475   if (event->is_hint)
 476     gdk_window_get_pointer (event->window, &mouse_x, &mouse_y, &state);
 477   else
 478     mouse_x = event->x;
 479
 480   gdouble x = mouse_x - event_box->allocation.width / 2 + widgets->profile_width / 2 - MARGIN / 2;
 481   if (x < 0)
 482     x = 0;
 483   if (x > widgets->profile_width)
 484     x = widgets->profile_width;
 485
 486   time_t seconds_from_start;
 487   VikTrackpoint *trackpoint = vik_track_get_closest_tp_by_percentage_time ( tr, (gdouble) x / widgets->profile_width, &seconds_from_start );
 488   if (trackpoint && widgets->w_cur_time) {
 489     static gchar tmp_buf[20];
 490     guint h, m, s;
 491     h = seconds_from_start/3600;
 492     m = (seconds_from_start - h*3600)/60;
 493     s = seconds_from_start - (3600*h) - (60*m);
 494     g_snprintf(tmp_buf, sizeof(tmp_buf), "%02d:%02d:%02d", h, m, s);
 495
 496     gtk_label_set_text(GTK_LABEL(widgets->w_cur_time), tmp_buf);
 497   }
 498
 499   gint ix = (gint)x;
 500   // Ensure ix is inbounds
 501   if (ix == widgets->profile_width)
 502     ix--;
 503
 504   // Show track speed for this position
 505   if (trackpoint && widgets->w_cur_speed) {
 506     static gchar tmp_buf[20];
 507     // Even if GPS speed available (trackpoint->speed), the text will correspond to the speed map shown
 508     vik_units_speed_t speed_units = a_vik_get_units_speed ();
 509     switch (speed_units) {
 510     case VIK_UNITS_SPEED_KILOMETRES_PER_HOUR:
 511       g_snprintf(tmp_buf, sizeof(tmp_buf), _("%.1f kph"), VIK_MPS_TO_KPH(widgets->speeds[ix]));
 512       break;
 513     case VIK_UNITS_SPEED_MILES_PER_HOUR:
 514       g_snprintf(tmp_buf, sizeof(tmp_buf), _("%.1f mph"), VIK_MPS_TO_MPH(widgets->speeds[ix]));
 515       break;
 516     case VIK_UNITS_SPEED_KNOTS:
 517       g_snprintf(tmp_buf, sizeof(tmp_buf), _("%.1f knots"), VIK_MPS_TO_KNOTS(widgets->speeds[ix]));
 518       break;
 519     default:
 520       // VIK_UNITS_SPEED_METRES_PER_SECOND:
 521       // No need to convert as already in m/s
 522       g_snprintf(tmp_buf, sizeof(tmp_buf), _("%.1f m/s"), widgets->speeds[ix]);
 523       break;
 524     }
 525     gtk_label_set_text(GTK_LABEL(widgets->w_cur_speed), tmp_buf);
 526   }
 527
 528   widgets->blob_tp = trackpoint;
 529
 530   if ( widgets->speeds == NULL )
 531     return;
 532
 533   GtkWidget *window = gtk_widget_get_toplevel (event_box);
 534   GList *child = gtk_container_get_children(GTK_CONTAINER(event_box));
 535   GtkWidget *image = GTK_WIDGET(child->data);
 536
 537   gint y_blob = blobby_speed (x, widgets);
 538
 539   gdouble marker_x = -1.0; // i.e. Don't draw unless we get a valid value
 540   if (widgets->is_marker_drawn) {
 541     gdouble pc = tp_percentage_by_time ( tr, widgets->marker_tp );
 542     if (!isnan(pc)) {
 543       marker_x = (pc * widgets->profile_width) + MARGIN;
 544     }
 545   }
 546
 547   save_image_and_draw_graph_marks (image,
 548                                    marker_x,
 549                                    window->style->black_gc,
 550                                    MARGIN+x,
 551                                    y_blob,
 552                                    &widgets->speed_graph_saved_img,
 553                                    widgets->profile_width,
 554                                    widgets->profile_height,
 555                                    &widgets->is_marker_drawn,
 556                                    &widgets->is_blob_drawn);
 557
 558   g_list_free(child);
 559 }
 560
 561 /**
 562  * Draws DEM points and a respresentative speed on the supplied pixmap
 563  *   (which is the elevations graph)
 564  */
 565 static void draw_dem_alt_speed_dist(VikTrack *tr,
 566                                     GdkDrawable *pix,
 567                                     GdkGC *alt_gc,
 568                                     GdkGC *speed_gc,
 569                                     gdouble alt_offset,
 570                                     gdouble alt_diff,
 571                                     gdouble max_speed_in,
 572                                     gint width,
 573                                     gint height,
 574                                     gint margin,
 575                                     gboolean do_dem,
 576                                     gboolean do_speed)
 577 {
 578   GList *iter;
 579   gdouble max_speed = 0;
 580   gdouble total_length = vik_track_get_length_including_gaps(tr);
 581
 582   // Calculate the max speed factor
 583   if (do_speed)
 584     max_speed = max_speed_in * 110 / 100;
 585
 586   gdouble dist = 0;
 587   for (iter = tr->trackpoints->next; iter; iter = iter->next) {
 588     int x;
 589     dist += vik_coord_diff ( &(VIK_TRACKPOINT(iter->data)->coord),
 590                              &(VIK_TRACKPOINT(iter->prev->data)->coord) );
 591     x = (width * dist)/total_length + margin;
 592     if (do_dem) {
 593       gint16 elev = a_dems_get_elev_by_coord(&(VIK_TRACKPOINT(iter->data)->coord), VIK_DEM_INTERPOL_BEST);
 594       elev -= alt_offset;
 595       if ( elev != VIK_DEM_INVALID_ELEVATION ) {
 596         int y_alt = height - ((height * elev)/alt_diff);
 597         gdk_draw_rectangle(GDK_DRAWABLE(pix), alt_gc, TRUE, x-2, y_alt-2, 4, 4);
 598       }
 599     }
 600     if (do_speed) {
 601       // This is just a speed indicator - no actual values can be inferred by user
 602       if (!isnan(VIK_TRACKPOINT(iter->data)->speed)) {
 603         int y_speed = height - (height * VIK_TRACKPOINT(iter->data)->speed)/max_speed;
 604         gdk_draw_rectangle(GDK_DRAWABLE(pix), speed_gc, TRUE, x-2, y_speed-2, 4, 4);
 605       }
 606     }
 607   }
 608 }
 609
 610 /**
 611  * Draw just the height profile image
 612  */
 613 static void draw_elevations (GtkWidget *image, VikTrack *tr, PropWidgets *widgets )
 614 {
 615   GtkWidget *window;
 616   GdkPixmap *pix;
 617   gdouble mina, maxa;
 618   guint i;
 619
 620   GdkGC *no_alt_info;
 621   GdkGC *dem_alt_gc;
 622   GdkGC *gps_speed_gc;
 623
 624   GdkColor color;
 625
 626   // Free previous allocation
 627   if ( widgets->altitudes )
 628     g_free ( widgets->altitudes );
 629
 630   widgets->altitudes = vik_track_make_elevation_map ( tr, widgets->profile_width );
 631
 632   if ( widgets->altitudes == NULL )
 633     return;
 634
 635   minmax_array(widgets->altitudes, &widgets->min_altitude, &widgets->max_altitude, TRUE, widgets->profile_width);
 636   widgets->max_altitude = widgets->max_altitude + ((widgets->max_altitude - widgets->min_altitude) * 0.25); // Make visible window a bit bigger than highest point
 637   // Assign locally
 638   mina = widgets->min_altitude;
 639   maxa = widgets->max_altitude;
 640
 641   window = gtk_widget_get_toplevel (widgets->elev_box);
 642
 643   pix = gdk_pixmap_new( window->window, widgets->profile_width + MARGIN, widgets->profile_height, -1 );
 644
 645   gtk_image_set_from_pixmap ( GTK_IMAGE(image), pix, NULL );
 646
 647   no_alt_info = gdk_gc_new ( window->window );
 648   gdk_color_parse ( "yellow", &color );
 649   gdk_gc_set_rgb_fg_color ( no_alt_info, &color);
 650
 651   dem_alt_gc = gdk_gc_new ( window->window );
 652   gdk_color_parse ( "green", &color );
 653   gdk_gc_set_rgb_fg_color ( dem_alt_gc, &color);
 654
 655   gps_speed_gc = gdk_gc_new ( window->window );
 656   gdk_color_parse ( "red", &color );
 657   gdk_gc_set_rgb_fg_color ( gps_speed_gc, &color);
 658
 659   /* clear the image */
 660   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->bg_gc[0],
 661                      TRUE, 0, 0, MARGIN, widgets->profile_height);
 662   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->mid_gc[0],
 663                      TRUE, MARGIN, 0, widgets->profile_width, widgets->profile_height);
 664
 665   /* draw grid */
 666   vik_units_height_t height_units = a_vik_get_units_height ();
 667   for (i=0; i<=LINES; i++) {
 668     PangoFontDescription *pfd;
 669     PangoLayout *pl = gtk_widget_create_pango_layout (GTK_WIDGET(image), NULL);
 670     gchar s[32];
 671     int w, h;
 672
 673     pango_layout_set_alignment (pl, PANGO_ALIGN_RIGHT);
 674     pfd = pango_font_description_from_string (PROPWIN_LABEL_FONT);
 675     pango_layout_set_font_description (pl, pfd);
 676     pango_font_description_free (pfd);
 677     switch (height_units) {
 678     case VIK_UNITS_HEIGHT_METRES:
 679       sprintf(s, "%8dm", (int)(mina + (LINES-i)*(maxa-mina)/LINES));
 680       break;
 681     case VIK_UNITS_HEIGHT_FEET:
 682       sprintf(s, "%8dft", (int)VIK_METERS_TO_FEET(mina + (LINES-i)*(maxa-mina)/LINES));
 683       break;
 684     default:
 685       sprintf(s, "--");
 686       g_critical("Houston, we've had a problem. height=%d", height_units);
 687     }
 688     pango_layout_set_text(pl, s, -1);
 689     pango_layout_get_pixel_size (pl, &w, &h);
 690     gdk_draw_layout(GDK_DRAWABLE(pix), window->style->fg_gc[0], MARGIN-w-3,
 691                     CLAMP((int)i*widgets->profile_height/LINES - h/2, 0, widgets->profile_height-h), pl);
 692
 693     gdk_draw_line (GDK_DRAWABLE(pix), window->style->dark_gc[0],
 694                    MARGIN, widgets->profile_height/LINES * i, MARGIN + widgets->profile_width, widgets->profile_height/LINES * i);
 695     g_object_unref ( G_OBJECT ( pl ) );
 696     pl = NULL;
 697   }
 698
 699   /* draw elevations */
 700   for ( i = 0; i < widgets->profile_width; i++ )
 701     if ( widgets->altitudes[i] == VIK_DEFAULT_ALTITUDE )
 702       gdk_draw_line ( GDK_DRAWABLE(pix), no_alt_info,
 703                       i + MARGIN, 0, i + MARGIN, widgets->profile_height );
 704     else
 705       gdk_draw_line ( GDK_DRAWABLE(pix), window->style->dark_gc[3],
 706                       i + MARGIN, widgets->profile_height, i + MARGIN, widgets->profile_height-widgets->profile_height*(widgets->altitudes[i]-mina)/(maxa-mina) );
 707
 708   // Ensure somekind of max speed when not set
 709   if ( widgets->max_speed < 0.01 )
 710     widgets->max_speed = vik_track_get_max_speed(tr);
 711
 712   draw_dem_alt_speed_dist(tr,
 713                           GDK_DRAWABLE(pix),
 714                           dem_alt_gc,
 715                           gps_speed_gc,
 716                           mina,
 717                           maxa - mina,
 718                           widgets->max_speed,
 719                           widgets->profile_width,
 720                           widgets->profile_height,
 721                           MARGIN,
 722                           gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON(widgets->w_show_dem)),
 723                           gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON(widgets->w_show_alt_gps_speed)));
 724
 725   /* draw border */
 726   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->black_gc, FALSE, MARGIN, 0, widgets->profile_width-1, widgets->profile_height-1);
 727
 728   g_object_unref ( G_OBJECT(pix) );
 729   g_object_unref ( G_OBJECT(no_alt_info) );
 730   g_object_unref ( G_OBJECT(dem_alt_gc) );
 731   g_object_unref ( G_OBJECT(gps_speed_gc) );
 732
 733 }
 734
 735 /**
 736  * Draw just the speed (velocity)/time image
 737  */
 738 static void draw_vt ( GtkWidget *image, VikTrack *tr, PropWidgets *widgets)
 739 {
 740   GtkWidget *window;
 741   GdkPixmap *pix;
 742   gdouble mins, maxs;
 743   guint i;
 744
 745   // Free previous allocation
 746   if ( widgets->speeds )
 747     g_free ( widgets->speeds );
 748
 749   widgets->speeds = vik_track_make_speed_map ( tr, widgets->profile_width );
 750   if ( widgets->speeds == NULL )
 751     return;
 752
 753   GdkGC *gps_speed_gc;
 754   GdkColor color;
 755
 756   window = gtk_widget_get_toplevel (widgets->speed_box);
 757
 758   pix = gdk_pixmap_new( window->window, widgets->profile_width + MARGIN, widgets->profile_height, -1 );
 759
 760   gtk_image_set_from_pixmap ( GTK_IMAGE(image), pix, NULL );
 761
 762   gps_speed_gc = gdk_gc_new ( window->window );
 763   gdk_color_parse ( "red", &color );
 764   gdk_gc_set_rgb_fg_color ( gps_speed_gc, &color);
 765
 766   minmax_array(widgets->speeds, &widgets->min_speed, &widgets->max_speed, FALSE, widgets->profile_width);
 767   if (widgets->min_speed < 0.0)
 768     widgets->min_speed = 0; /* splines sometimes give negative speeds */
 769   widgets->max_speed = widgets->max_speed + ((widgets->max_speed - widgets->min_speed) * 0.1);
 770   if  (widgets->max_speed-widgets->min_speed < MIN_SPEED_DIFF) {
 771     widgets->max_speed = widgets->min_speed + MIN_SPEED_DIFF;
 772   }
 773   // Assign locally
 774   mins = widgets->min_speed;
 775   maxs = widgets->max_speed;
 776
 777   /* clear the image */
 778   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->bg_gc[0],
 779                      TRUE, 0, 0, MARGIN, widgets->profile_height);
 780   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->mid_gc[0],
 781                      TRUE, MARGIN, 0, widgets->profile_width, widgets->profile_height);
 782
 783   /* draw grid */
 784   for (i=0; i<=LINES; i++) {
 785     PangoFontDescription *pfd;
 786     PangoLayout *pl = gtk_widget_create_pango_layout (GTK_WIDGET(image), NULL);
 787     gchar s[32];
 788     int w, h;
 789
 790     pango_layout_set_alignment (pl, PANGO_ALIGN_RIGHT);
 791     pfd = pango_font_description_from_string (PROPWIN_LABEL_FONT);
 792     pango_layout_set_font_description (pl, pfd);
 793     pango_font_description_free (pfd);
 794     vik_units_speed_t speed_units = a_vik_get_units_speed ();
 795     switch (speed_units) {
 796     case VIK_UNITS_SPEED_KILOMETRES_PER_HOUR:
 797       sprintf(s, "%6.1fkm/h", VIK_MPS_TO_KPH(mins + (LINES-i)*(maxs-mins)/LINES));
 798       break;
 799     case VIK_UNITS_SPEED_MILES_PER_HOUR:
 800       sprintf(s, "%6.1fmph", VIK_MPS_TO_MPH(mins + (LINES-i)*(maxs-mins)/LINES));
 801       break;
 802     case VIK_UNITS_SPEED_METRES_PER_SECOND:
 803       sprintf(s, "%8dm/s", (int)(mins + (LINES-i)*(maxs-mins)/LINES));
 804       break;
 805     case VIK_UNITS_SPEED_KNOTS:
 806       sprintf(s, "%6.1fknots", VIK_MPS_TO_KNOTS(mins + (LINES-i)*(maxs-mins)/LINES));
 807       break;
 808     default:
 809       sprintf(s, "--");
 810       g_critical("Houston, we've had a problem. speed=%d", speed_units);
 811     }
 812
 813     pango_layout_set_text(pl, s, -1);
 814     pango_layout_get_pixel_size (pl, &w, &h);
 815     gdk_draw_layout(GDK_DRAWABLE(pix), window->style->fg_gc[0], MARGIN-w-3,
 816                     CLAMP((int)i*widgets->profile_height/LINES - h/2, 0, widgets->profile_height-h), pl);
 817
 818     gdk_draw_line (GDK_DRAWABLE(pix), window->style->dark_gc[0],
 819                    MARGIN, widgets->profile_height/LINES * i, MARGIN + widgets->profile_width, widgets->profile_height/LINES * i);
 820     g_object_unref ( G_OBJECT ( pl ) );
 821     pl = NULL;
 822   }
 823
 824
 825   /* draw speeds */
 826   for ( i = 0; i < widgets->profile_width; i++ )
 827       gdk_draw_line ( GDK_DRAWABLE(pix), window->style->dark_gc[3],
 828                       i + MARGIN, widgets->profile_height, i + MARGIN, widgets->profile_height-widgets->profile_height*(widgets->speeds[i]-mins)/(maxs-mins) );
 829
 830
 831   time_t beg_time = VIK_TRACKPOINT(tr->trackpoints->data)->timestamp;
 832   time_t dur =  VIK_TRACKPOINT(g_list_last(tr->trackpoints)->data)->timestamp - beg_time;
 833
 834   if ( gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widgets->w_show_gps_speed)) ) {
 835     GList *iter;
 836     for (iter = tr->trackpoints; iter; iter = iter->next) {
 837       gdouble gps_speed = VIK_TRACKPOINT(iter->data)->speed;
 838       if (isnan(gps_speed))
 839         continue;
 840       int x = MARGIN + widgets->profile_width * (VIK_TRACKPOINT(iter->data)->timestamp - beg_time) / dur;
 841       int y = widgets->profile_height - widgets->profile_height*(gps_speed - mins)/(maxs - mins);
 842       gdk_draw_rectangle(GDK_DRAWABLE(pix), gps_speed_gc, TRUE, x-2, y-2, 4, 4);
 843     }
 844   }
 845
 846   /* draw border */
 847   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->black_gc, FALSE, MARGIN, 0, widgets->profile_width-1, widgets->profile_height-1);
 848
 849   g_object_unref ( G_OBJECT(pix) );
 850   g_object_unref ( G_OBJECT(gps_speed_gc) );
 851
 852 }
 853 #undef LINES
 854
 855 /**
 856  * Draw all graphs
 857  */
 858 static void draw_all_graphs ( GtkWidget *widget, gpointer *pass_along, gboolean resized )
 859 {
 860   VikTrack *tr = pass_along[0];
 861   PropWidgets *widgets = pass_along[3];
 862
 863   // Draw graphs even if they are not visible
 864
 865   GList *child = NULL;
 866   GtkWidget *image = NULL;
 867   GtkWidget *window = gtk_widget_get_toplevel(widget);
 868   gdouble pc = NAN;
 869   gdouble pc_blob = NAN;
 870
 871   // Draw elevations
 872   if (widgets->elev_box != NULL) {
 873
 874     // Saved image no longer any good as we've resized, so we remove it here
 875     if (resized && widgets->elev_graph_saved_img.img) {
 876       g_object_unref(widgets->elev_graph_saved_img.img);
 877       widgets->elev_graph_saved_img.img = NULL;
 878       widgets->elev_graph_saved_img.saved = FALSE;
 879     }
 880
 881     child = gtk_container_get_children(GTK_CONTAINER(widgets->elev_box));
 882     draw_elevations (GTK_WIDGET(child->data), tr, widgets );
 883
 884     image = GTK_WIDGET(child->data);
 885     g_list_free(child);
 886
 887     // Ensure marker or blob are redrawn if necessary
 888     if (widgets->is_marker_drawn || widgets->is_blob_drawn) {
 889
 890       pc = tp_percentage_by_distance ( tr, widgets->marker_tp, widgets->track_length );
 891       gdouble x_blob = -MARGIN - 1.0; // i.e. Don't draw unless we get a valid value
 892       gint y_blob = 0;
 893       if (widgets->is_blob_drawn) {
 894         pc_blob = tp_percentage_by_distance ( tr, widgets->blob_tp, widgets->track_length );
 895         if (!isnan(pc_blob)) {
 896           x_blob = (pc_blob * widgets->profile_width);
 897         }
 898         y_blob = blobby_altitude (x_blob, widgets);
 899       }
 900
 901       gdouble marker_x = -1.0; // i.e. Don't draw unless we get a valid value
 902       if (!isnan(pc)) {
 903         marker_x = (pc * widgets->profile_width) + MARGIN;
 904       }
 905
 906       save_image_and_draw_graph_marks (image,
 907                                        marker_x,
 908                                        window->style->black_gc,
 909                                        x_blob+MARGIN,
 910                                        y_blob,
 911                                        &widgets->elev_graph_saved_img,
 912                                        widgets->profile_width,
 913                                        widgets->profile_height,
 914                                        &widgets->is_marker_drawn,
 915                                        &widgets->is_blob_drawn);
 916     }
 917   }
 918
 919   // Draw speeds
 920   if (widgets->speed_box != NULL) {
 921
 922     // Saved image no longer any good as we've resized
 923     if (resized && widgets->speed_graph_saved_img.img) {
 924       g_object_unref(widgets->speed_graph_saved_img.img);
 925       widgets->speed_graph_saved_img.img = NULL;
 926       widgets->speed_graph_saved_img.saved = FALSE;
 927     }
 928
 929     child = gtk_container_get_children(GTK_CONTAINER(widgets->speed_box));
 930     draw_vt (GTK_WIDGET(child->data), tr, widgets );
 931
 932     image = GTK_WIDGET(child->data);
 933     g_list_free(child);
 934
 935     // Ensure marker or blob are redrawn if necessary
 936     if (widgets->is_marker_drawn || widgets->is_blob_drawn) {
 937
 938       pc = tp_percentage_by_time ( tr, widgets->marker_tp );
 939
 940       gdouble x_blob = -MARGIN - 1.0; // i.e. Don't draw unless we get a valid value
 941       gint    y_blob = 0;
 942       if (widgets->is_blob_drawn) {
 943         pc_blob = tp_percentage_by_time ( tr, widgets->blob_tp );
 944         if (!isnan(pc_blob)) {
 945           x_blob = (pc_blob * widgets->profile_width);
 946         }
 947
 948         y_blob = blobby_speed (x_blob, widgets);
 949       }
 950
 951       gdouble marker_x = -1.0; // i.e. Don't draw unless we get a valid value
 952       if (!isnan(pc)) {
 953         marker_x = (pc * widgets->profile_width) + MARGIN;
 954       }
 955
 956       save_image_and_draw_graph_marks (image,
 957                                        marker_x,
 958                                        window->style->black_gc,
 959                                        x_blob+MARGIN,
 960                                        y_blob,
 961                                        &widgets->speed_graph_saved_img,
 962                                        widgets->profile_width,
 963                                        widgets->profile_height,
 964                                        &widgets->is_marker_drawn,
 965                                        &widgets->is_blob_drawn);
 966     }
 967   }
 968 }
 969
 970 /**
 971  * Configure/Resize the profile & speed/time images
 972  */
 973 static gboolean configure_event ( GtkWidget *widget, GdkEventConfigure *event, gpointer *pass_along )
 974 {
 975   PropWidgets *widgets = pass_along[3];
 976
 977   if (widgets->configure_dialog) {
 978     // Determine size offsets between dialog size and size for images
 979     // Only on the initialisation of the dialog
 980     widgets->profile_width_offset = event->width - widgets->profile_width;
 981     widgets->profile_height_offset = event->height - widgets->profile_height;
 982     widgets->configure_dialog = FALSE;
 983
 984     // Without this the settting, the dialog will only grow in vertical size - one can not then make it smaller!
 985     gtk_widget_set_size_request ( widget, widgets->profile_width+widgets->profile_width_offset, widgets->profile_height );
 986     // In fact this allows one to compress it a bit more vertically as I don't add on the height offset
 987   }
 988   else {
 989     widgets->profile_width_old = widgets->profile_width;
 990     widgets->profile_height_old = widgets->profile_height;
 991   }
 992
 993   // Now adjust From Dialog size to get image size
 994   widgets->profile_width = event->width - widgets->profile_width_offset;
 995   widgets->profile_height = event->height - widgets->profile_height_offset;
 996
 997   // ATM we receive configure_events when the dialog is moved and so no further action is necessary
 998   if ( !widgets->configure_dialog &&
 999        (widgets->profile_width_old == widgets->profile_width) && (widgets->profile_height_old == widgets->profile_height) )
1000     return FALSE;
1001
1002   // Draw stuff
1003   draw_all_graphs ( widget, pass_along, TRUE );
1004
1005   return FALSE;
1006 }
1007
1008 /**
1009  * Create height profile widgets including the image and callbacks
1010  */
1011 GtkWidget *vik_trw_layer_create_profile ( GtkWidget *window, VikTrack *tr, gpointer vlp, VikViewport *vvp, PropWidgets *widgets, gdouble *min_alt, gdouble *max_alt)
1012 {
1013   GdkPixmap *pix;
1014   GtkWidget *image;
1015   GtkWidget *eventbox;
1016   gpointer *pass_along;
1017
1018   // First allocation
1019   widgets->altitudes = vik_track_make_elevation_map ( tr, widgets->profile_width );
1020
1021   if ( widgets->altitudes == NULL ) {
1022     *min_alt = *max_alt = VIK_DEFAULT_ALTITUDE;
1023     return NULL;
1024   }
1025
1026   minmax_array(widgets->altitudes, min_alt, max_alt, TRUE, widgets->profile_width);
1027
1028   pix = gdk_pixmap_new( window->window, widgets->profile_width + MARGIN, widgets->profile_height, -1 );
1029   image = gtk_image_new_from_pixmap ( pix, NULL );
1030
1031   g_object_unref ( G_OBJECT(pix) );
1032
1033   pass_along = g_malloc ( sizeof(gpointer) * 4 ); /* FIXME: mem leak -- never be freed */
1034   pass_along[0] = tr;
1035   pass_along[1] = vlp;
1036   pass_along[2] = vvp;
1037   pass_along[3] = widgets;
1038
1039   eventbox = gtk_event_box_new ();
1040   g_signal_connect ( G_OBJECT(eventbox), "button_press_event", G_CALLBACK(track_profile_click), pass_along );
1041   g_signal_connect ( G_OBJECT(eventbox), "motion_notify_event", G_CALLBACK(track_profile_move), pass_along );
1042   g_signal_connect_swapped ( G_OBJECT(eventbox), "destroy", G_CALLBACK(g_free), pass_along );
1043   gtk_container_add ( GTK_CONTAINER(eventbox), image );
1044   gtk_widget_set_events (eventbox, GDK_BUTTON_PRESS_MASK | GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_STRUCTURE_MASK);
1045
1046   return eventbox;
1047 }
1048
1049 /**
1050  * Create speed/time widgets including the image and callbacks
1051  */
1052 GtkWidget *vik_trw_layer_create_vtdiag ( GtkWidget *window, VikTrack *tr, gpointer vlp, VikViewport *vvp, PropWidgets *widgets)
1053 {
1054   GdkPixmap *pix;
1055   GtkWidget *image;
1056   GtkWidget *eventbox;
1057   gpointer *pass_along;
1058
1059   // First allocation
1060   widgets->speeds = vik_track_make_speed_map ( tr, widgets->profile_width );
1061   if ( widgets->speeds == NULL )
1062     return NULL;
1063
1064   pass_along = g_malloc ( sizeof(gpointer) * 4 ); /* FIXME: mem leak -- never be freed */
1065   pass_along[0] = tr;
1066   pass_along[1] = vlp;
1067   pass_along[2] = vvp;
1068   pass_along[3] = widgets;
1069
1070   pix = gdk_pixmap_new( window->window, widgets->profile_width + MARGIN, widgets->profile_height, -1 );
1071   image = gtk_image_new_from_pixmap ( pix, NULL );
1072
1073 #if 0
1074   /* XXX this can go out, it's just a helpful dev tool */
1075   {
1076     int j;
1077     GdkGC **colors[8] = { window->style->bg_gc,
1078                           window->style->fg_gc,
1079                           window->style->light_gc,
1080                           window->style->dark_gc,
1081                           window->style->mid_gc,
1082                           window->style->text_gc,
1083                           window->style->base_gc,
1084                           window->style->text_aa_gc };
1085     for (i=0; i<5; i++) {
1086       for (j=0; j<8; j++) {
1087         gdk_draw_rectangle(GDK_DRAWABLE(pix), colors[j][i],
1088                            TRUE, i*20, j*20, 20, 20);
1089         gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->black_gc,
1090                            FALSE, i*20, j*20, 20, 20);
1091       }
1092     }
1093   }
1094 #endif
1095
1096   g_object_unref ( G_OBJECT(pix) );
1097
1098   eventbox = gtk_event_box_new ();
1099   g_signal_connect ( G_OBJECT(eventbox), "button_press_event", G_CALLBACK(track_vt_click), pass_along );
1100   g_signal_connect ( G_OBJECT(eventbox), "motion_notify_event", G_CALLBACK(track_vt_move), pass_along );
1101   g_signal_connect_swapped ( G_OBJECT(eventbox), "destroy", G_CALLBACK(g_free), pass_along );
1102   gtk_container_add ( GTK_CONTAINER(eventbox), image );
1103   gtk_widget_set_events (eventbox, GDK_BUTTON_PRESS_MASK | GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK);
1104
1105   return eventbox;
1106 }
1107 #undef MARGIN
1108
1109 static void propwin_response_cb( GtkDialog *dialog, gint resp, PropWidgets *widgets)
1110 {
1111   VikTrack *tr = widgets->tr;
1112   VikTrwLayer *vtl = widgets->vtl;
1113   gboolean keep_dialog = FALSE;
1114
1115   /* FIXME: check and make sure the track still exists before doing anything to it */
1116   /* Note: destroying diaglog (eg, parent window exit) won't give "response" */
1117   switch (resp) {
1118     case GTK_RESPONSE_DELETE_EVENT: /* received delete event (not from buttons) */
1119     case GTK_RESPONSE_REJECT:
1120       break;
1121     case GTK_RESPONSE_ACCEPT:
1122       vik_track_set_comment(tr, gtk_entry_get_text(GTK_ENTRY(widgets->w_comment)));
1123       break;
1124     case VIK_TRW_LAYER_PROPWIN_REVERSE:
1125       vik_track_reverse(tr);
1126       vik_layer_emit_update ( VIK_LAYER(vtl) );
1127       break;
1128     case VIK_TRW_LAYER_PROPWIN_DEL_DUP:
1129       vik_track_remove_dup_points(tr);
1130       /* above operation could have deleted current_tp or last_tp */
1131       trw_layer_cancel_tps_of_track ( vtl, widgets->track_name );
1132       vik_layer_emit_update ( VIK_LAYER(vtl) );
1133       break;
1134     case VIK_TRW_LAYER_PROPWIN_SPLIT:
1135       {
1136         /* get new tracks, add them, resolve naming conflicts (free if cancel), and delete old. old can still exist on clipboard. */
1137         guint ntracks;
1138         VikTrack **tracks = vik_track_split_into_segments(tr, &ntracks);
1139         gchar *new_tr_name;
1140         guint i;
1141         for ( i = 0; i < ntracks; i++ )
1142         {
1143           g_assert ( tracks[i] );
1144           new_tr_name = g_strdup_printf("%s #%d", widgets->track_name, i+1);
1145           /* if ( (wp_exists) && (! overwrite) ) */
1146           /* don't need to upper case new_tr_name because old tr name was uppercase */
1147           if ( vik_trw_layer_get_track(vtl, new_tr_name ) &&
1148              ( ! a_dialog_yes_or_no ( VIK_GTK_WINDOW_FROM_LAYER(vtl), "The track \"%s\" exists, do you wish to overwrite it?", new_tr_name ) ) )
1149           {
1150             gchar *new_new_tr_name = a_dialog_new_track ( VIK_GTK_WINDOW_FROM_LAYER(vtl), vik_trw_layer_get_tracks(vtl), NULL );
1151             g_free ( new_tr_name );
1152             if (new_new_tr_name)
1153               new_tr_name = new_new_tr_name;
1154             else
1155             {
1156               new_tr_name = NULL;
1157               vik_track_free ( tracks[i] );
1158             }
1159           }
1160           if ( new_tr_name )
1161             vik_trw_layer_add_track ( vtl, new_tr_name, tracks[i] );
1162         }
1163         if ( tracks )
1164         {
1165           g_free ( tracks );
1166           /* Don't let track destroy this dialog */
1167           vik_track_clear_property_dialog(tr);
1168           vik_trw_layer_delete_track ( vtl, widgets->track_name );
1169           vik_layer_emit_update ( VIK_LAYER(vtl) ); /* chase thru the hoops */
1170         }
1171       }
1172       break;
1173     case VIK_TRW_LAYER_PROPWIN_SPLIT_MARKER:
1174       {
1175         GList *iter = tr->trackpoints;
1176         while ((iter = iter->next)) {
1177           if (widgets->marker_tp == VIK_TRACKPOINT(iter->data))
1178             break;
1179         }
1180         if (iter == NULL) {
1181           a_dialog_msg(VIK_GTK_WINDOW_FROM_LAYER(vtl), GTK_MESSAGE_ERROR,
1182                   _("Failed spliting track. Track unchanged"), NULL);
1183           keep_dialog = TRUE;
1184           break;
1185         }
1186
1187         gchar *r_name = g_strdup_printf("%s #R", widgets->track_name);
1188         if (vik_trw_layer_get_track(vtl, r_name ) &&
1189              ( ! a_dialog_yes_or_no( VIK_GTK_WINDOW_FROM_LAYER(vtl),
1190               "The track \"%s\" exists, do you wish to overwrite it?", r_name)))
1191         {
1192           gchar *new_r_name = a_dialog_new_track( VIK_GTK_WINDOW_FROM_LAYER(vtl), vik_trw_layer_get_tracks(vtl), NULL );
1193             if (new_r_name) {
1194               g_free( r_name );
1195               r_name = new_r_name;
1196             }
1197             else {
1198               a_dialog_msg(VIK_GTK_WINDOW_FROM_LAYER(vtl), GTK_MESSAGE_WARNING,
1199                   _("Operation Aborted. Track unchanged"), NULL);
1200               keep_dialog = TRUE;
1201               break;
1202             }
1203         }
1204         iter->prev->next = NULL;
1205         iter->prev = NULL;
1206         VikTrack *tr_right = vik_track_new();
1207         if ( tr->comment )
1208           vik_track_set_comment ( tr_right, tr->comment );
1209         tr_right->visible = tr->visible;
1210         tr_right->trackpoints = iter;
1211
1212         vik_trw_layer_add_track(vtl, r_name, tr_right);
1213         vik_layer_emit_update ( VIK_LAYER(vtl) );
1214       }
1215       break;
1216     default:
1217       fprintf(stderr, "DEBUG: unknown response\n");
1218       return;
1219   }
1220
1221   /* Keep same behaviour for now: destroy dialog if click on any button */
1222   if (!keep_dialog) {
1223     prop_widgets_free(widgets);
1224     vik_track_clear_property_dialog(tr);
1225     gtk_widget_destroy ( GTK_WIDGET(dialog) );
1226   }
1227 }
1228
1229 /**
1230  * Force a redraw when checkbutton has been toggled to show/hide that information
1231  */
1232 static void checkbutton_toggle_cb ( GtkToggleButton *togglebutton, gpointer *pass_along, gpointer dummy)
1233 {
1234   PropWidgets *widgets = pass_along[3];
1235   // Even though not resized, we'll pretend it is -
1236   //  as this invalidates the saved images (since the image may have changed)
1237   draw_all_graphs ( widgets->dialog, pass_along, TRUE);
1238 }
1239
1240 /**
1241  *  Create the widgets for the given graph tab
1242  */
1243 static GtkWidget *create_graph_page ( GtkWidget *graph,
1244                                       const gchar *markup,
1245                                       GtkWidget *value,
1246                                       const gchar *markup2,
1247                                       GtkWidget *value2,
1248                                       GtkWidget *checkbutton1,
1249                                       gboolean checkbutton1_default,
1250                                       GtkWidget *checkbutton2,
1251                                       gboolean checkbutton2_default )
1252 {
1253   GtkWidget *hbox = gtk_hbox_new ( FALSE, 10 );
1254   GtkWidget *vbox = gtk_vbox_new ( FALSE, 10 );
1255   GtkWidget *label = gtk_label_new (NULL);
1256   GtkWidget *label2 = gtk_label_new (NULL);
1257   gtk_box_pack_start (GTK_BOX(vbox), graph, FALSE, FALSE, 0);
1258   gtk_label_set_markup ( GTK_LABEL(label), markup );
1259   gtk_label_set_markup ( GTK_LABEL(label2), markup2 );
1260   gtk_box_pack_start (GTK_BOX(hbox), label, FALSE, FALSE, 0);
1261   gtk_box_pack_start (GTK_BOX(hbox), value, FALSE, FALSE, 0);
1262   gtk_box_pack_start (GTK_BOX(hbox), label2, FALSE, FALSE, 0);
1263   gtk_box_pack_start (GTK_BOX(hbox), value2, FALSE, FALSE, 0);
1264   if (checkbutton2) {
1265     gtk_box_pack_end (GTK_BOX(hbox), checkbutton2, FALSE, FALSE, 0);
1266     gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON(checkbutton2), checkbutton2_default);
1267   }
1268   if (checkbutton1) {
1269     gtk_box_pack_end (GTK_BOX(hbox), checkbutton1, FALSE, FALSE, 0);
1270     gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON(checkbutton1), checkbutton1_default);
1271   }
1272   gtk_box_pack_start (GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
1273
1274   return vbox;
1275 }
1276
1277 void vik_trw_layer_propwin_run ( GtkWindow *parent, VikTrwLayer *vtl, VikTrack *tr, gpointer vlp, gchar *track_name, VikViewport *vvp )
1278 {
1279   /* FIXME: free widgets when destroy signal received */
1280   PropWidgets *widgets = prop_widgets_new();
1281   widgets->vtl = vtl;
1282   widgets->tr = tr;
1283   widgets->vlp = vlp;
1284   widgets->profile_width  = PROPWIN_PROFILE_WIDTH;
1285   widgets->profile_height = PROPWIN_PROFILE_HEIGHT;
1286   widgets->track_name = track_name;
1287   gchar *title = g_strdup_printf(_("%s - Track Properties"), track_name);
1288   GtkWidget *dialog = gtk_dialog_new_with_buttons (title,
1289                          parent,
1290                          GTK_DIALOG_DESTROY_WITH_PARENT | GTK_DIALOG_NO_SEPARATOR,
1291                          GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
1292                          _("Split at _Marker"), VIK_TRW_LAYER_PROPWIN_SPLIT_MARKER,
1293                          _("Split _Segments"), VIK_TRW_LAYER_PROPWIN_SPLIT,
1294                          _("_Reverse"),        VIK_TRW_LAYER_PROPWIN_REVERSE,
1295                          _("_Delete Dupl."),   VIK_TRW_LAYER_PROPWIN_DEL_DUP,
1296                          GTK_STOCK_OK,     GTK_RESPONSE_ACCEPT,
1297                          NULL);
1298   widgets->dialog = dialog;
1299   g_free(title);
1300   g_signal_connect(dialog, "response", G_CALLBACK(propwin_response_cb), widgets);
1301   GtkTable *table;
1302   gdouble tr_len;
1303   guint32 tp_count, seg_count;
1304
1305   gdouble min_alt, max_alt;
1306   widgets->elev_box = vik_trw_layer_create_profile(GTK_WIDGET(parent), tr, vlp, vvp, widgets, &min_alt, &max_alt);
1307   widgets->speed_box = vik_trw_layer_create_vtdiag(GTK_WIDGET(parent), tr, vlp, vvp, widgets);
1308   GtkWidget *graphs = gtk_notebook_new();
1309
1310   GtkWidget *content[20];
1311   int cnt;
1312   int i;
1313
1314   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>") };
1315   static gchar tmp_buf[50];
1316   gdouble tmp_speed;
1317
1318   cnt = 0;
1319   widgets->w_comment = gtk_entry_new ();
1320   if ( tr->comment )
1321     gtk_entry_set_text ( GTK_ENTRY(widgets->w_comment), tr->comment );
1322   g_signal_connect_swapped ( widgets->w_comment, "activate", G_CALLBACK(a_dialog_response_accept), GTK_DIALOG(dialog) );
1323   content[cnt++] = widgets->w_comment;
1324
1325   vik_units_distance_t dist_units = a_vik_get_units_distance ();
1326
1327   tr_len = widgets->track_length = vik_track_get_length(tr);
1328   switch (dist_units) {
1329   case VIK_UNITS_DISTANCE_KILOMETRES:
1330     g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f km", tr_len/1000.0 );
1331     break;
1332   case VIK_UNITS_DISTANCE_MILES:
1333     g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f miles", VIK_METERS_TO_MILES(tr_len) );
1334     break;
1335   default:
1336     g_critical("Houston, we've had a problem. distance=%d", dist_units);
1337   }
1338   widgets->w_track_length = content[cnt++] = gtk_label_new ( tmp_buf );
1339
1340   tp_count = vik_track_get_tp_count(tr);
1341   g_snprintf(tmp_buf, sizeof(tmp_buf), "%u", tp_count );
1342   widgets->w_tp_count = content[cnt++] = gtk_label_new ( tmp_buf );
1343
1344   seg_count = vik_track_get_segment_count(tr) ;
1345   g_snprintf(tmp_buf, sizeof(tmp_buf), "%u", seg_count );
1346   widgets->w_segment_count = content[cnt++] = gtk_label_new ( tmp_buf );
1347
1348   g_snprintf(tmp_buf, sizeof(tmp_buf), "%lu", vik_track_get_dup_point_count(tr) );
1349   widgets->w_duptp_count = content[cnt++] = gtk_label_new ( tmp_buf );
1350
1351   vik_units_speed_t speed_units = a_vik_get_units_speed ();
1352   tmp_speed = vik_track_get_max_speed(tr);
1353   if ( tmp_speed == 0 )
1354     g_snprintf(tmp_buf, sizeof(tmp_buf), _("No Data"));
1355   else {
1356     switch (speed_units) {
1357     case VIK_UNITS_SPEED_KILOMETRES_PER_HOUR:
1358       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f km/h", VIK_MPS_TO_KPH(tmp_speed));
1359       break;
1360     case VIK_UNITS_SPEED_MILES_PER_HOUR:
1361       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f mph", VIK_MPS_TO_MPH(tmp_speed));
1362       break;
1363     case VIK_UNITS_SPEED_METRES_PER_SECOND:
1364       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f m/s", tmp_speed );
1365       break;
1366     case VIK_UNITS_SPEED_KNOTS:
1367       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f knots", VIK_MPS_TO_KNOTS(tmp_speed));
1368       break;
1369     default:
1370       g_snprintf (tmp_buf, sizeof(tmp_buf), "--" );
1371       g_critical("Houston, we've had a problem. speed=%d", speed_units);
1372     }
1373   }
1374   widgets->w_max_speed = content[cnt++] = gtk_label_new ( tmp_buf );
1375
1376   tmp_speed = vik_track_get_average_speed(tr);
1377   if ( tmp_speed == 0 )
1378     g_snprintf(tmp_buf, sizeof(tmp_buf), _("No Data"));
1379   else {
1380     switch (speed_units) {
1381     case VIK_UNITS_SPEED_KILOMETRES_PER_HOUR:
1382       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f km/h", VIK_MPS_TO_KPH(tmp_speed));
1383       break;
1384     case VIK_UNITS_SPEED_MILES_PER_HOUR:
1385       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f mph", VIK_MPS_TO_MPH(tmp_speed));
1386       break;
1387     case VIK_UNITS_SPEED_METRES_PER_SECOND:
1388       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f m/s", tmp_speed );
1389       break;
1390     case VIK_UNITS_SPEED_KNOTS:
1391       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f knots", VIK_MPS_TO_KNOTS(tmp_speed));
1392       break;
1393     default:
1394       g_snprintf (tmp_buf, sizeof(tmp_buf), "--" );
1395       g_critical("Houston, we've had a problem. speed=%d", speed_units);
1396     }
1397   }
1398   widgets->w_avg_speed = content[cnt++] = gtk_label_new ( tmp_buf );
1399
1400   switch (dist_units) {
1401   case VIK_UNITS_DISTANCE_KILOMETRES:
1402     // Even though kilometres, the average distance between points is going to be quite small so keep in metres
1403     g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f m", (tp_count - seg_count) == 0 ? 0 : tr_len / ( tp_count - seg_count ) );
1404     break;
1405   case VIK_UNITS_DISTANCE_MILES:
1406     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 )) );
1407     break;
1408   default:
1409     g_critical("Houston, we've had a problem. distance=%d", dist_units);
1410   }
1411   widgets->w_avg_dist = content[cnt++] = gtk_label_new ( tmp_buf );
1412
1413   vik_units_height_t height_units = a_vik_get_units_height ();
1414   if ( min_alt == VIK_DEFAULT_ALTITUDE )
1415     g_snprintf(tmp_buf, sizeof(tmp_buf), _("No Data"));
1416   else {
1417     switch (height_units) {
1418     case VIK_UNITS_HEIGHT_METRES:
1419       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.0f m - %.0f m", min_alt, max_alt );
1420       break;
1421     case VIK_UNITS_HEIGHT_FEET:
1422       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.0f feet - %.0f feet", VIK_METERS_TO_FEET(min_alt), VIK_METERS_TO_FEET(max_alt) );
1423       break;
1424     default:
1425       g_snprintf(tmp_buf, sizeof(tmp_buf), "--" );
1426       g_critical("Houston, we've had a problem. height=%d", height_units);
1427     }
1428   }
1429   widgets->w_elev_range = content[cnt++] = gtk_label_new ( tmp_buf );
1430
1431   vik_track_get_total_elevation_gain(tr, &max_alt, &min_alt );
1432   if ( min_alt == VIK_DEFAULT_ALTITUDE )
1433     g_snprintf(tmp_buf, sizeof(tmp_buf), _("No Data"));
1434   else {
1435     switch (height_units) {
1436     case VIK_UNITS_HEIGHT_METRES:
1437       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.0f m / %.0f m", max_alt, min_alt );
1438       break;
1439     case VIK_UNITS_HEIGHT_FEET:
1440       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.0f feet / %.0f feet", VIK_METERS_TO_FEET(max_alt), VIK_METERS_TO_FEET(min_alt) );
1441       break;
1442     default:
1443       g_snprintf(tmp_buf, sizeof(tmp_buf), "--" );
1444       g_critical("Houston, we've had a problem. height=%d", height_units);
1445     }
1446   }
1447   widgets->w_elev_gain = content[cnt++] = gtk_label_new ( tmp_buf );
1448
1449 #if 0
1450 #define PACK(w) gtk_box_pack_start (GTK_BOX(right_vbox), w, FALSE, FALSE, 0);
1451   gtk_box_pack_start (GTK_BOX(right_vbox), e_cmt, FALSE, FALSE, 0);
1452   PACK(l_len);
1453   PACK(l_tps);
1454   PACK(l_segs);
1455   PACK(l_dups);
1456   PACK(l_maxs);
1457   PACK(l_avgs);
1458   PACK(l_avgd);
1459   PACK(l_elev);
1460   PACK(l_galo);
1461 #undef PACK;
1462 #endif
1463
1464   if ( tr->trackpoints && VIK_TRACKPOINT(tr->trackpoints->data)->timestamp )
1465   {
1466     time_t t1, t2;
1467     t1 = VIK_TRACKPOINT(tr->trackpoints->data)->timestamp;
1468     t2 = VIK_TRACKPOINT(g_list_last(tr->trackpoints)->data)->timestamp;
1469
1470     strncpy(tmp_buf, ctime(&t1), sizeof(tmp_buf));
1471     tmp_buf[sizeof(tmp_buf)-1] = 0;
1472     g_strchomp(tmp_buf);
1473     widgets->w_time_start = content[cnt++] = gtk_label_new(tmp_buf);
1474
1475     strncpy(tmp_buf, ctime(&t2), sizeof(tmp_buf));
1476     tmp_buf[sizeof(tmp_buf)-1] = 0;
1477     g_strchomp(tmp_buf);
1478     widgets->w_time_end = content[cnt++] = gtk_label_new(tmp_buf);
1479
1480     g_snprintf(tmp_buf, sizeof(tmp_buf), _("%d minutes"), (int)(t2-t1)/60);
1481     widgets->w_time_dur = content[cnt++] = gtk_label_new(tmp_buf);
1482   } else {
1483     widgets->w_time_start = content[cnt++] = gtk_label_new(_("No Data"));
1484     widgets->w_time_end = content[cnt++] = gtk_label_new(_("No Data"));
1485     widgets->w_time_dur = content[cnt++] = gtk_label_new(_("No Data"));
1486   }
1487
1488   table = GTK_TABLE(gtk_table_new (cnt, 2, FALSE));
1489   gtk_table_set_col_spacing (table, 0, 10);
1490   for (i=0; i<cnt; i++) {
1491     GtkWidget *label;
1492
1493     // Settings so the text positioning only moves around vertically when the dialog is resized
1494     // This also gives more room to see the track comment
1495     label = gtk_label_new(NULL);
1496     gtk_misc_set_alignment ( GTK_MISC(label), 1, 0.5 ); // Position text centrally in vertical plane
1497     gtk_label_set_markup ( GTK_LABEL(label), _(label_texts[i]) );
1498     gtk_table_attach ( table, label, 0, 1, i, i+1, GTK_FILL, GTK_SHRINK, 0, 0 );
1499     if (GTK_IS_MISC(content[i])) {
1500       gtk_misc_set_alignment ( GTK_MISC(content[i]), 0, 0.5 );
1501     }
1502     gtk_table_attach_defaults ( table, content[i], 1, 2, i, i+1 );
1503   }
1504
1505   gtk_notebook_append_page(GTK_NOTEBOOK(graphs), GTK_WIDGET(table), gtk_label_new(_("Statistics")));
1506
1507   gpointer *pass_along;
1508   pass_along = g_malloc ( sizeof(gpointer) * 4 ); /* FIXME: mem leak -- never be freed */
1509   pass_along[0] = tr;
1510   pass_along[1] = vlp;
1511   pass_along[2] = vvp;
1512   pass_along[3] = widgets;
1513
1514   if ( widgets->elev_box ) {
1515     GtkWidget *page = NULL;
1516     widgets->w_cur_dist = gtk_label_new(_("No Data"));
1517     widgets->w_cur_elevation = gtk_label_new(_("No Data"));
1518     widgets->w_show_dem = gtk_check_button_new_with_mnemonic(_("Show D_EM"));
1519     widgets->w_show_alt_gps_speed = gtk_check_button_new_with_mnemonic(_("Show _GPS Speed"));
1520     page = create_graph_page (widgets->elev_box,
1521                               _("<b>Track Distance:</b>"), widgets->w_cur_dist,
1522                               _("<b>Track Height:</b>"), widgets->w_cur_elevation,
1523                               widgets->w_show_dem, TRUE,
1524                               widgets->w_show_alt_gps_speed, TRUE);
1525     g_signal_connect (widgets->w_show_dem, "toggled", G_CALLBACK (checkbutton_toggle_cb), pass_along);
1526     g_signal_connect (widgets->w_show_alt_gps_speed, "toggled", G_CALLBACK (checkbutton_toggle_cb), pass_along);
1527     gtk_notebook_append_page(GTK_NOTEBOOK(graphs), page, gtk_label_new(_("Elevation-distance")));
1528   }
1529
1530   if ( widgets->speed_box ) {
1531     GtkWidget *page = NULL;
1532     widgets->w_cur_time = gtk_label_new(_("No Data"));
1533     widgets->w_cur_speed = gtk_label_new(_("No Data"));
1534     widgets->w_show_gps_speed = gtk_check_button_new_with_mnemonic(_("Show _GPS Speed"));
1535     page = create_graph_page (widgets->speed_box,
1536                               _("<b>Track Time:</b>"), widgets->w_cur_time,
1537                               _("<b>Track Speed:</b>"), widgets->w_cur_speed,
1538                               widgets->w_show_gps_speed, TRUE,
1539                               NULL, FALSE);
1540     g_signal_connect (widgets->w_show_gps_speed, "toggled", G_CALLBACK (checkbutton_toggle_cb), pass_along);
1541     gtk_notebook_append_page(GTK_NOTEBOOK(graphs), page, gtk_label_new(_("Speed-time")));
1542   }
1543
1544   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), graphs, FALSE, FALSE, 0);
1545
1546   gtk_dialog_set_response_sensitive(GTK_DIALOG(dialog), VIK_TRW_LAYER_PROPWIN_SPLIT_MARKER, FALSE);
1547   if (seg_count <= 1)
1548     gtk_dialog_set_response_sensitive(GTK_DIALOG(dialog), VIK_TRW_LAYER_PROPWIN_SPLIT, FALSE);
1549   if (vik_track_get_dup_point_count(tr) <= 0)
1550     gtk_dialog_set_response_sensitive(GTK_DIALOG(dialog), VIK_TRW_LAYER_PROPWIN_DEL_DUP, FALSE);
1551
1552   // On dialog realization configure_event casues the graphs to be initially drawn
1553   widgets->configure_dialog = TRUE;
1554   g_signal_connect ( G_OBJECT(dialog), "configure-event", G_CALLBACK (configure_event), pass_along);
1555
1556   vik_track_set_property_dialog(tr, dialog);
1557   gtk_dialog_set_default_response ( GTK_DIALOG(dialog), GTK_RESPONSE_ACCEPT );
1558   gtk_widget_show_all ( dialog );
1559 }