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  * Copyright (C) 2011, Rob Norris <rw_norris@hotmail.com>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  22  *
  23  */
  24
  25 #ifdef HAVE_CONFIG_H
  26 #include "config.h"
  27 #endif
  28
  29 #ifdef HAVE_MATH_H
  30 #include <math.h>
  31 #endif
  32
  33 #include <gtk/gtk.h>
  34 #include <glib/gi18n.h>
  35 #include <time.h>
  36 #ifdef HAVE_STRING_H
  37 #include <string.h>
  38 #endif
  39 #include "coords.h"
  40 #include "vikcoord.h"
  41 #include "viktrack.h"
  42 #include "viktrwlayer.h"
  43 #include "viktrwlayer_propwin.h"
  44 #include "vikwaypoint.h"
  45 #include "dialog.h"
  46 #include "globals.h"
  47 #include "dems.h"
  48
  49 #include "vikviewport.h" /* ugh */
  50 #include "viktreeview.h" /* ugh */
  51 #include <gdk-pixbuf/gdk-pixdata.h>
  52 #include "viklayer.h" /* ugh */
  53 #include "vikaggregatelayer.h"
  54 #include "viklayerspanel.h" /* ugh */
  55
  56 #define PROPWIN_PROFILE_WIDTH 600
  57 #define PROPWIN_PROFILE_HEIGHT 300
  58
  59 #define PROPWIN_LABEL_FONT "Sans 7"
  60
  61 /* (Hopefully!) Human friendly altitude grid sizes - note no fixed 'ratio' just numbers that look nice...*/
  62 static const gdouble chunksa[] = {2.0, 5.0, 10.0, 15.0, 20.0,
  63                                   25.0, 50.0, 75.0, 100.0,
  64                                   150.0, 200.0, 250.0, 375.0, 500.0,
  65                                   750.0, 1000.0, 2000.0, 5000.0, 10000.0, 100000.0};
  66
  67 /* (Hopefully!) Human friendly grid sizes - note no fixed 'ratio' just numbers that look nice...*/
  68 /* As need to cover walking speeds - have many low numbers (but also may go up to airplane speeds!) */
  69 static const gdouble chunkss[] = {1.0, 2.0, 3.0, 4.0, 5.0, 8.0, 10.0,
  70                                   15.0, 20.0, 25.0, 40.0, 50.0, 75.0,
  71                                   100.0, 150.0, 200.0, 250.0, 375.0, 500.0,
  72                                   750.0, 1000.0, 10000.0};
  73
  74 typedef struct _propsaved {
  75   gboolean saved;
  76   GdkImage *img;
  77 } PropSaved;
  78
  79 typedef struct _propwidgets {
  80   gboolean  configure_dialog;
  81   VikTrwLayer *vtl;
  82   VikTrack *tr;
  83   gchar *track_name;
  84   gint      profile_width;
  85   gint      profile_height;
  86   gint      profile_width_old;
  87   gint      profile_height_old;
  88   gint      profile_width_offset;
  89   gint      profile_height_offset;
  90   GtkWidget *dialog;
  91   GtkWidget *w_comment;
  92   GtkWidget *w_track_length;
  93   GtkWidget *w_tp_count;
  94   GtkWidget *w_segment_count;
  95   GtkWidget *w_duptp_count;
  96   GtkWidget *w_max_speed;
  97   GtkWidget *w_avg_speed;
  98   GtkWidget *w_avg_dist;
  99   GtkWidget *w_elev_range;
 100   GtkWidget *w_elev_gain;
 101   GtkWidget *w_time_start;
 102   GtkWidget *w_time_end;
 103   GtkWidget *w_time_dur;
 104   GtkWidget *w_cur_dist; /*< Current distance */
 105   GtkWidget *w_cur_elevation;
 106   GtkWidget *w_cur_time; /*< Current time */
 107   GtkWidget *w_cur_speed;
 108   GtkWidget *w_show_dem;
 109   GtkWidget *w_show_alt_gps_speed;
 110   GtkWidget *w_show_gps_speed;
 111   gdouble   track_length;
 112   PropSaved elev_graph_saved_img;
 113   PropSaved speed_graph_saved_img;
 114   GtkWidget *elev_box;
 115   GtkWidget *speed_box;
 116   gdouble   *altitudes;
 117   gdouble   min_altitude;
 118   gdouble   max_altitude;
 119   gdouble   draw_min_altitude;
 120   gint      cia; // Chunk size Index into Altitudes
 121   gdouble   *speeds;
 122   gdouble   min_speed;
 123   gdouble   max_speed;
 124   gdouble   draw_min_speed;
 125   gint      cis; // Chunk size Index into Speeds
 126   VikTrackpoint *marker_tp;
 127   gboolean  is_marker_drawn;
 128   VikTrackpoint *blob_tp;
 129   gboolean  is_blob_drawn;
 130 } PropWidgets;
 131
 132 static PropWidgets *prop_widgets_new()
 133 {
 134   PropWidgets *widgets = g_malloc0(sizeof(PropWidgets));
 135
 136   return widgets;
 137 }
 138
 139 static void prop_widgets_free(PropWidgets *widgets)
 140 {
 141   if (widgets->elev_graph_saved_img.img)
 142     g_object_unref(widgets->elev_graph_saved_img.img);
 143   if (widgets->speed_graph_saved_img.img)
 144     g_object_unref(widgets->speed_graph_saved_img.img);
 145   if (widgets->altitudes)
 146     g_free(widgets->altitudes);
 147   if (widgets->speeds)
 148     g_free(widgets->speeds);
 149   g_free(widgets);
 150 }
 151
 152 static void minmax_array(const gdouble *array, gdouble *min, gdouble *max, gboolean NO_ALT_TEST, gint PROFILE_WIDTH)
 153 {
 154   *max = -1000;
 155   *min = 20000;
 156   guint i;
 157   for ( i=0; i < PROFILE_WIDTH; i++ ) {
 158     if ( NO_ALT_TEST || (array[i] != VIK_DEFAULT_ALTITUDE) ) {
 159       if ( array[i] > *max )
 160         *max = array[i];
 161       if ( array[i] < *min )
 162         *min = array[i];
 163     }
 164   }
 165 }
 166
 167 #define MARGIN 70
 168 #define LINES 5
 169 /**
 170  * Returns via pointers:
 171  *   the new minimum value to be used for the altitude graph
 172  *   the index in to the altitudes chunk sizes array (ci = Chunk Index)
 173  */
 174 static void get_new_min_and_chunk_index_altitude (gdouble mina, gdouble maxa, gdouble *new_min, gint *ci)
 175 {
 176   /* Get unitized chunk */
 177   /* Find suitable chunk index */
 178   *ci = 0;
 179   gdouble diffa_chunk = (maxa - mina)/LINES;
 180
 181   /* Loop through to find best match */
 182   while (diffa_chunk > chunksa[*ci]) {
 183     (*ci)++;
 184     /* Last Resort Check */
 185     if ( *ci == sizeof(chunksa)/sizeof(chunksa[0]) )
 186       break;
 187   }
 188
 189   /* Ensure adjusted minimum .. maximum covers mina->maxa */
 190
 191   // Now work out adjusted minimum point to the nearest lowest chunk divisor value
 192   // When negative ensure logic uses lowest value
 193   if ( mina < 0 )
 194     *new_min = (gdouble) ( ( (gint)(mina - chunksa[*ci]) / (gint)chunksa[*ci] ) * (gint)chunksa[*ci] );
 195   else
 196     *new_min = (gdouble) ( ( (gint)mina / (gint)chunksa[*ci] ) * (gint)chunksa[*ci] );
 197
 198   // Range not big enough - as new minimum has lowered
 199   if ((*new_min + (chunksa[*ci] * LINES) < maxa)) {
 200     // Next chunk should cover it
 201     if ( *ci < sizeof(chunksa)/sizeof(chunksa[0]) ) {
 202       (*ci)++;
 203     }
 204   }
 205 }
 206
 207 /**
 208  * Returns via pointers:
 209  *   the new minimum value to be used for the appropriate graph
 210  *   the index in to that array (ci = Chunk Index)
 211  */
 212 static void get_new_min_and_chunk_index (gdouble mins, gdouble maxs, const gdouble *chunks, size_t chunky, gdouble *new_min, gint *ci)
 213 {
 214   *ci = 0;
 215   gdouble diff_chunk = (maxs - mins)/LINES;
 216
 217   /* Loop through to find best match */
 218   while (diff_chunk > chunks[*ci]) {
 219     (*ci)++;
 220     /* Last Resort Check */
 221     if ( *ci == chunky )
 222       break;
 223   }
 224   *new_min = (gdouble) ( (gint)((mins / chunks[*ci] ) * chunks[*ci]) );
 225
 226   // Speeds are never negative so don't need to worry about a negative new minimum
 227 }
 228
 229 static VikTrackpoint *set_center_at_graph_position(gdouble event_x,
 230                                                    gint img_width,
 231                                                    VikTrwLayer *vtl,
 232                                                    VikLayersPanel *vlp,
 233                                                    VikViewport *vvp,
 234                                                    VikTrack *tr,
 235                                                    gboolean time_base,
 236                                                    gint PROFILE_WIDTH)
 237 {
 238   VikTrackpoint *trackpoint;
 239   gdouble x = event_x - img_width / 2 + PROFILE_WIDTH / 2 - MARGIN / 2;
 240   if (x < 0)
 241     x = 0;
 242   if (x > PROFILE_WIDTH)
 243     x = PROFILE_WIDTH;
 244
 245   if (time_base)
 246     trackpoint = vik_track_get_closest_tp_by_percentage_time ( tr, (gdouble) x / PROFILE_WIDTH, NULL );
 247   else
 248     trackpoint = vik_track_get_closest_tp_by_percentage_dist ( tr, (gdouble) x / PROFILE_WIDTH, NULL );
 249
 250   if ( trackpoint ) {
 251     VikCoord coord = trackpoint->coord;
 252     if ( vlp ) {
 253       vik_viewport_set_center_coord ( vik_layers_panel_get_viewport(vlp), &coord );
 254       vik_layers_panel_emit_update ( vlp );
 255     }
 256     else {
 257       /* since vlp not set, vvp should be valid instead! */
 258       if ( vvp )
 259         vik_viewport_set_center_coord ( vvp, &coord );
 260       vik_layer_emit_update ( VIK_LAYER(vtl) );
 261     }
 262   }
 263   return trackpoint;
 264 }
 265
 266 /**
 267  * Returns whether the marker was drawn or not and whether the blob was drawn or not
 268  */
 269 static void save_image_and_draw_graph_marks (GtkWidget *image,
 270                                              gdouble marker_x,
 271                                              GdkGC *gc,
 272                                              gint blob_x,
 273                                              gint blob_y,
 274                                              PropSaved *saved_img,
 275                                              gint PROFILE_WIDTH,
 276                                              gint PROFILE_HEIGHT,
 277                                              gboolean *marker_drawn,
 278                                              gboolean *blob_drawn)
 279 {
 280   GdkPixmap *pix = NULL;
 281   /* the pixmap = margin + graph area */
 282   gtk_image_get_pixmap(GTK_IMAGE(image), &pix, NULL);
 283
 284   /* Restore previously saved image */
 285   if (saved_img->saved) {
 286     gdk_draw_image(GDK_DRAWABLE(pix), gc, saved_img->img, 0, 0, 0, 0, MARGIN+PROFILE_WIDTH, PROFILE_HEIGHT);
 287     saved_img->saved = FALSE;
 288   }
 289
 290   // ATM always save whole image - as anywhere could have changed
 291   if (saved_img->img)
 292     gdk_drawable_copy_to_image(GDK_DRAWABLE(pix), saved_img->img, 0, 0, 0, 0, MARGIN+PROFILE_WIDTH, PROFILE_HEIGHT);
 293   else
 294     saved_img->img = gdk_drawable_copy_to_image(GDK_DRAWABLE(pix), saved_img->img, 0, 0, 0, 0, MARGIN+PROFILE_WIDTH, PROFILE_HEIGHT);
 295   saved_img->saved = TRUE;
 296
 297   if ((marker_x >= MARGIN) && (marker_x < (PROFILE_WIDTH + MARGIN))) {
 298     gdk_draw_line (GDK_DRAWABLE(pix), gc, marker_x, 0, marker_x, image->allocation.height);
 299     *marker_drawn = TRUE;
 300   }
 301   else
 302     *marker_drawn = FALSE;
 303
 304   // Draw a square blob to indicate where we are on track for this graph
 305   if ( (blob_x >= MARGIN) && (blob_x < (PROFILE_WIDTH + MARGIN)) && (blob_y < PROFILE_HEIGHT) ) {
 306     gdk_draw_rectangle (GDK_DRAWABLE(pix), gc, TRUE, blob_x-3, blob_y-3, 6, 6);
 307     *blob_drawn = TRUE;
 308   }
 309   else
 310     *blob_drawn = FALSE;
 311
 312   // Anywhere on image could have changed
 313   if (*marker_drawn || *blob_drawn)
 314     gtk_widget_queue_draw(image);
 315 }
 316
 317 /**
 318  * Return the percentage of how far a trackpoint is a long a track via the time method
 319  */
 320 static gdouble tp_percentage_by_time ( VikTrack *tr, VikTrackpoint *trackpoint )
 321 {
 322   gdouble pc = NAN;
 323   if (trackpoint == NULL)
 324     return pc;
 325   time_t t_start, t_end, t_total;
 326   t_start = VIK_TRACKPOINT(tr->trackpoints->data)->timestamp;
 327   t_end = VIK_TRACKPOINT(g_list_last(tr->trackpoints)->data)->timestamp;
 328   t_total = t_end - t_start;
 329   pc = (gdouble)(trackpoint->timestamp - t_start)/t_total;
 330   return pc;
 331 }
 332
 333 /**
 334  * Return the percentage of how far a trackpoint is a long a track via the distance method
 335  */
 336 static gdouble tp_percentage_by_distance ( VikTrack *tr, VikTrackpoint *trackpoint, gdouble track_length )
 337 {
 338   gdouble pc = NAN;
 339   if (trackpoint == NULL)
 340     return pc;
 341   gdouble dist = 0.0;
 342   GList *iter;
 343   for (iter = tr->trackpoints->next; iter != NULL; iter = iter->next) {
 344     dist += vik_coord_diff(&(VIK_TRACKPOINT(iter->data)->coord),
 345                            &(VIK_TRACKPOINT(iter->prev->data)->coord));
 346     /* Assuming trackpoint is not a copy */
 347     if (trackpoint == VIK_TRACKPOINT(iter->data))
 348       break;
 349   }
 350   if (iter != NULL)
 351     pc = dist/track_length;
 352   return pc;
 353 }
 354
 355 static void track_graph_click( GtkWidget *event_box, GdkEventButton *event, gpointer *pass_along, gboolean is_vt_graph )
 356 {
 357   VikTrack *tr = pass_along[0];
 358   VikLayersPanel *vlp = pass_along[1];
 359   VikViewport *vvp = pass_along[2];
 360   PropWidgets *widgets = pass_along[3];
 361   GList *child = gtk_container_get_children(GTK_CONTAINER(event_box));
 362   GtkWidget *image = GTK_WIDGET(child->data);
 363   GtkWidget *window = gtk_widget_get_toplevel(GTK_WIDGET(event_box));
 364
 365   VikTrackpoint *trackpoint = set_center_at_graph_position(event->x, event_box->allocation.width, widgets->vtl, vlp, vvp, tr, is_vt_graph, widgets->profile_width);
 366   gdouble xm = event->x - event_box->allocation.width/2 + widgets->profile_width/2 + MARGIN/2;
 367   save_image_and_draw_graph_marks(image,
 368                                   xm,
 369                                   window->style->black_gc,
 370                                   -1, // Don't draw blob on clicks
 371                                   0,
 372                                   is_vt_graph ? &widgets->speed_graph_saved_img : &widgets->elev_graph_saved_img,
 373                                   widgets->profile_width,
 374                                   widgets->profile_height,
 375                                   &widgets->is_marker_drawn,
 376                                   &widgets->is_blob_drawn);
 377   g_list_free(child);
 378   widgets->marker_tp = trackpoint;
 379   gtk_dialog_set_response_sensitive(GTK_DIALOG(widgets->dialog), VIK_TRW_LAYER_PROPWIN_SPLIT_MARKER, widgets->is_marker_drawn);
 380
 381   /* draw on the other graph */
 382   if (trackpoint == NULL || widgets->elev_box == NULL || widgets->speed_box == NULL)
 383     /* This test assumes we have only 2 graphs */
 384     return;
 385
 386   gdouble pc = NAN;
 387   GList *other_child = gtk_container_get_children(GTK_CONTAINER(
 388                          is_vt_graph ? widgets->elev_box : widgets->speed_box));
 389   GtkWidget *other_image = GTK_WIDGET(other_child->data);
 390   if (is_vt_graph) {
 391     pc = tp_percentage_by_distance ( tr, trackpoint, widgets->track_length );
 392   } else {
 393     pc = tp_percentage_by_time ( tr, trackpoint );
 394   }
 395   if (!isnan(pc)) {
 396     gdouble x2 = pc * widgets->profile_width + MARGIN;
 397     save_image_and_draw_graph_marks(other_image,
 398                                     x2,
 399                                     window->style->black_gc,
 400                                     -1, // Don't draw blob on clicks
 401                                     0,
 402                                     is_vt_graph ? &widgets->elev_graph_saved_img : &widgets->speed_graph_saved_img,
 403                                     widgets->profile_width,
 404                                     widgets->profile_height,
 405                                     &widgets->is_marker_drawn,
 406                                     &widgets->is_blob_drawn);
 407   }
 408
 409   g_list_free(other_child);
 410
 411 }
 412
 413 static gboolean track_profile_click( GtkWidget *event_box, GdkEventButton *event, gpointer *pass_along )
 414 {
 415   track_graph_click(event_box, event, pass_along, FALSE);
 416   return TRUE;  /* don't call other (further) callbacks */
 417 }
 418
 419 static gboolean track_vt_click( GtkWidget *event_box, GdkEventButton *event, gpointer *pass_along )
 420 {
 421   track_graph_click(event_box, event, pass_along, TRUE);
 422   return TRUE;  /* don't call other (further) callbacks */
 423 }
 424
 425 /**
 426  * Calculate y position for blob on elevation graph
 427  */
 428 static gint blobby_altitude ( gdouble x_blob, PropWidgets *widgets )
 429 {
 430   gint ix = (gint)x_blob;
 431   // Ensure ix is inbounds
 432   if (ix == widgets->profile_width)
 433     ix--;
 434
 435   gint y_blob = widgets->profile_height-widgets->profile_height*(widgets->altitudes[ix]-widgets->draw_min_altitude)/(chunksa[widgets->cia]*LINES);
 436
 437   return y_blob;
 438 }
 439
 440 /**
 441  * Calculate y position for blob on speed graph
 442  */
 443 static gint blobby_speed ( gdouble x_blob, PropWidgets *widgets )
 444 {
 445   gint ix = (gint)x_blob;
 446   // Ensure ix is inbounds
 447   if (ix == widgets->profile_width)
 448     ix--;
 449
 450   gint y_blob = widgets->profile_height-widgets->profile_height*(widgets->speeds[ix]-widgets->draw_min_speed)/(chunkss[widgets->cis]*LINES);
 451
 452   return y_blob;
 453 }
 454
 455 void track_profile_move( GtkWidget *event_box, GdkEventMotion *event, gpointer *pass_along )
 456 {
 457   VikTrack *tr = pass_along[0];
 458   PropWidgets *widgets = pass_along[3];
 459   int mouse_x, mouse_y;
 460   GdkModifierType state;
 461
 462   if (event->is_hint)
 463     gdk_window_get_pointer (event->window, &mouse_x, &mouse_y, &state);
 464   else
 465     mouse_x = event->x;
 466
 467   gdouble x = mouse_x - event_box->allocation.width / 2 + widgets->profile_width / 2 - MARGIN / 2;
 468   if (x < 0)
 469     x = 0;
 470   if (x > widgets->profile_width)
 471     x = widgets->profile_width;
 472
 473   gdouble meters_from_start;
 474   VikTrackpoint *trackpoint = vik_track_get_closest_tp_by_percentage_dist ( tr, (gdouble) x / widgets->profile_width, &meters_from_start );
 475   if (trackpoint && widgets->w_cur_dist) {
 476     static gchar tmp_buf[20];
 477     vik_units_distance_t dist_units = a_vik_get_units_distance ();
 478     switch (dist_units) {
 479     case VIK_UNITS_DISTANCE_KILOMETRES:
 480       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f km", meters_from_start/1000.0);
 481       break;
 482     case VIK_UNITS_DISTANCE_MILES:
 483       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f miles", VIK_METERS_TO_MILES(meters_from_start) );
 484       break;
 485     default:
 486       g_critical("Houston, we've had a problem. distance=%d", dist_units);
 487     }
 488     gtk_label_set_text(GTK_LABEL(widgets->w_cur_dist), tmp_buf);
 489   }
 490
 491   // Show track elevation for this position - to the nearest whole number
 492   if (trackpoint && widgets->w_cur_elevation) {
 493     static gchar tmp_buf[20];
 494     if (a_vik_get_units_height () == VIK_UNITS_HEIGHT_FEET)
 495       g_snprintf(tmp_buf, sizeof(tmp_buf), "%d ft", (int)VIK_METERS_TO_FEET(trackpoint->altitude));
 496     else
 497       g_snprintf(tmp_buf, sizeof(tmp_buf), "%d m", (int)trackpoint->altitude);
 498     gtk_label_set_text(GTK_LABEL(widgets->w_cur_elevation), tmp_buf);
 499   }
 500
 501   widgets->blob_tp = trackpoint;
 502
 503   if ( widgets->altitudes == NULL )
 504     return;
 505
 506   GtkWidget *window = gtk_widget_get_toplevel (event_box);
 507   GList *child = gtk_container_get_children(GTK_CONTAINER(event_box));
 508   GtkWidget *image = GTK_WIDGET(child->data);
 509
 510   gint y_blob = blobby_altitude (x, widgets);
 511
 512   gdouble marker_x = -1.0; // i.e. Don't draw unless we get a valid value
 513   if (widgets->is_marker_drawn) {
 514     gdouble pc = tp_percentage_by_distance ( tr, widgets->marker_tp, widgets->track_length );
 515     if (!isnan(pc)) {
 516       marker_x = (pc * widgets->profile_width) + MARGIN;
 517     }
 518   }
 519
 520   save_image_and_draw_graph_marks (image,
 521                                    marker_x,
 522                                    window->style->black_gc,
 523                                    MARGIN+x,
 524                                    y_blob,
 525                                    &widgets->elev_graph_saved_img,
 526                                    widgets->profile_width,
 527                                    widgets->profile_height,
 528                                    &widgets->is_marker_drawn,
 529                                    &widgets->is_blob_drawn);
 530
 531   g_list_free(child);
 532 }
 533
 534 void track_vt_move( GtkWidget *event_box, GdkEventMotion *event, gpointer *pass_along )
 535 {
 536   VikTrack *tr = pass_along[0];
 537   PropWidgets *widgets = pass_along[3];
 538   int mouse_x, mouse_y;
 539   GdkModifierType state;
 540
 541   if (event->is_hint)
 542     gdk_window_get_pointer (event->window, &mouse_x, &mouse_y, &state);
 543   else
 544     mouse_x = event->x;
 545
 546   gdouble x = mouse_x - event_box->allocation.width / 2 + widgets->profile_width / 2 - MARGIN / 2;
 547   if (x < 0)
 548     x = 0;
 549   if (x > widgets->profile_width)
 550     x = widgets->profile_width;
 551
 552   time_t seconds_from_start;
 553   VikTrackpoint *trackpoint = vik_track_get_closest_tp_by_percentage_time ( tr, (gdouble) x / widgets->profile_width, &seconds_from_start );
 554   if (trackpoint && widgets->w_cur_time) {
 555     static gchar tmp_buf[20];
 556     guint h, m, s;
 557     h = seconds_from_start/3600;
 558     m = (seconds_from_start - h*3600)/60;
 559     s = seconds_from_start - (3600*h) - (60*m);
 560     g_snprintf(tmp_buf, sizeof(tmp_buf), "%02d:%02d:%02d", h, m, s);
 561
 562     gtk_label_set_text(GTK_LABEL(widgets->w_cur_time), tmp_buf);
 563   }
 564
 565   gint ix = (gint)x;
 566   // Ensure ix is inbounds
 567   if (ix == widgets->profile_width)
 568     ix--;
 569
 570   // Show track speed for this position
 571   if (trackpoint && widgets->w_cur_speed) {
 572     static gchar tmp_buf[20];
 573     // Even if GPS speed available (trackpoint->speed), the text will correspond to the speed map shown
 574     // No conversions needed as already in appropriate units
 575     vik_units_speed_t speed_units = a_vik_get_units_speed ();
 576     switch (speed_units) {
 577     case VIK_UNITS_SPEED_KILOMETRES_PER_HOUR:
 578       g_snprintf(tmp_buf, sizeof(tmp_buf), _("%.1f kph"), widgets->speeds[ix]);
 579       break;
 580     case VIK_UNITS_SPEED_MILES_PER_HOUR:
 581       g_snprintf(tmp_buf, sizeof(tmp_buf), _("%.1f mph"), widgets->speeds[ix]);
 582       break;
 583     case VIK_UNITS_SPEED_KNOTS:
 584       g_snprintf(tmp_buf, sizeof(tmp_buf), _("%.1f knots"), widgets->speeds[ix]);
 585       break;
 586     default:
 587       // VIK_UNITS_SPEED_METRES_PER_SECOND:
 588       g_snprintf(tmp_buf, sizeof(tmp_buf), _("%.1f m/s"), widgets->speeds[ix]);
 589       break;
 590     }
 591     gtk_label_set_text(GTK_LABEL(widgets->w_cur_speed), tmp_buf);
 592   }
 593
 594   widgets->blob_tp = trackpoint;
 595
 596   if ( widgets->speeds == NULL )
 597     return;
 598
 599   GtkWidget *window = gtk_widget_get_toplevel (event_box);
 600   GList *child = gtk_container_get_children(GTK_CONTAINER(event_box));
 601   GtkWidget *image = GTK_WIDGET(child->data);
 602
 603   gint y_blob = blobby_speed (x, widgets);
 604
 605   gdouble marker_x = -1.0; // i.e. Don't draw unless we get a valid value
 606   if (widgets->is_marker_drawn) {
 607     gdouble pc = tp_percentage_by_time ( tr, widgets->marker_tp );
 608     if (!isnan(pc)) {
 609       marker_x = (pc * widgets->profile_width) + MARGIN;
 610     }
 611   }
 612
 613   save_image_and_draw_graph_marks (image,
 614                                    marker_x,
 615                                    window->style->black_gc,
 616                                    MARGIN+x,
 617                                    y_blob,
 618                                    &widgets->speed_graph_saved_img,
 619                                    widgets->profile_width,
 620                                    widgets->profile_height,
 621                                    &widgets->is_marker_drawn,
 622                                    &widgets->is_blob_drawn);
 623
 624   g_list_free(child);
 625 }
 626
 627 /**
 628  * Draws DEM points and a respresentative speed on the supplied pixmap
 629  *   (which is the elevations graph)
 630  */
 631 static void draw_dem_alt_speed_dist(VikTrack *tr,
 632                                     GdkDrawable *pix,
 633                                     GdkGC *alt_gc,
 634                                     GdkGC *speed_gc,
 635                                     gdouble alt_offset,
 636                                     gdouble alt_diff,
 637                                     gdouble max_speed_in,
 638                                     gint cia,
 639                                     gint width,
 640                                     gint height,
 641                                     gint margin,
 642                                     gboolean do_dem,
 643                                     gboolean do_speed)
 644 {
 645   GList *iter;
 646   gdouble max_speed = 0;
 647   gdouble total_length = vik_track_get_length_including_gaps(tr);
 648
 649   // Calculate the max speed factor
 650   if (do_speed)
 651     max_speed = max_speed_in * 110 / 100;
 652
 653   gdouble dist = 0;
 654   for (iter = tr->trackpoints->next; iter; iter = iter->next) {
 655     int x;
 656     dist += vik_coord_diff ( &(VIK_TRACKPOINT(iter->data)->coord),
 657                              &(VIK_TRACKPOINT(iter->prev->data)->coord) );
 658     x = (width * dist)/total_length + margin;
 659     if (do_dem) {
 660       gint16 elev = a_dems_get_elev_by_coord(&(VIK_TRACKPOINT(iter->data)->coord), VIK_DEM_INTERPOL_BEST);
 661       elev -= alt_offset;
 662       if ( elev != VIK_DEM_INVALID_ELEVATION ) {
 663         // Convert into height units
 664         if (a_vik_get_units_height () == VIK_UNITS_HEIGHT_FEET)
 665           elev =  VIK_METERS_TO_FEET(elev);
 666         // No conversion needed if already in metres
 667
 668         // consider chunk size
 669         int y_alt = height - ((height * (elev-alt_offset))/(chunksa[cia]*LINES) );
 670         gdk_draw_rectangle(GDK_DRAWABLE(pix), alt_gc, TRUE, x-2, y_alt-2, 4, 4);
 671       }
 672     }
 673     if (do_speed) {
 674       // This is just a speed indicator - no actual values can be inferred by user
 675       if (!isnan(VIK_TRACKPOINT(iter->data)->speed)) {
 676         int y_speed = height - (height * VIK_TRACKPOINT(iter->data)->speed)/max_speed;
 677         gdk_draw_rectangle(GDK_DRAWABLE(pix), speed_gc, TRUE, x-2, y_speed-2, 4, 4);
 678       }
 679     }
 680   }
 681 }
 682
 683 /**
 684  * Draw just the height profile image
 685  */
 686 static void draw_elevations (GtkWidget *image, VikTrack *tr, PropWidgets *widgets )
 687 {
 688   GtkWidget *window;
 689   GdkPixmap *pix;
 690   gdouble mina, maxa;
 691   guint i;
 692
 693   GdkGC *no_alt_info;
 694   GdkGC *dem_alt_gc;
 695   GdkGC *gps_speed_gc;
 696
 697   GdkColor color;
 698
 699   // Free previous allocation
 700   if ( widgets->altitudes )
 701     g_free ( widgets->altitudes );
 702
 703   widgets->altitudes = vik_track_make_elevation_map ( tr, widgets->profile_width );
 704
 705   if ( widgets->altitudes == NULL )
 706     return;
 707
 708   // Convert into appropriate units
 709   vik_units_height_t height_units = a_vik_get_units_height ();
 710   if ( height_units == VIK_UNITS_HEIGHT_FEET ) {
 711     // Convert altitudes into feet units
 712     for ( i = 0; i < widgets->profile_width; i++ ) {
 713       widgets->altitudes[i] = VIK_METERS_TO_FEET(widgets->altitudes[i]);
 714     }
 715   }
 716   // Otherwise leave in metres
 717
 718   minmax_array(widgets->altitudes, &widgets->min_altitude, &widgets->max_altitude, TRUE, widgets->profile_width);
 719
 720   get_new_min_and_chunk_index_altitude (widgets->min_altitude, widgets->max_altitude, &widgets->draw_min_altitude, &widgets->cia);
 721
 722   // Assign locally
 723   mina = widgets->draw_min_altitude;
 724   maxa = widgets->max_altitude;
 725
 726   window = gtk_widget_get_toplevel (widgets->elev_box);
 727
 728   pix = gdk_pixmap_new( window->window, widgets->profile_width + MARGIN, widgets->profile_height, -1 );
 729
 730   gtk_image_set_from_pixmap ( GTK_IMAGE(image), pix, NULL );
 731
 732   no_alt_info = gdk_gc_new ( window->window );
 733   gdk_color_parse ( "yellow", &color );
 734   gdk_gc_set_rgb_fg_color ( no_alt_info, &color);
 735
 736   dem_alt_gc = gdk_gc_new ( window->window );
 737   gdk_color_parse ( "green", &color );
 738   gdk_gc_set_rgb_fg_color ( dem_alt_gc, &color);
 739
 740   gps_speed_gc = gdk_gc_new ( window->window );
 741   gdk_color_parse ( "red", &color );
 742   gdk_gc_set_rgb_fg_color ( gps_speed_gc, &color);
 743
 744   /* clear the image */
 745   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->bg_gc[0],
 746                      TRUE, 0, 0, MARGIN, widgets->profile_height);
 747   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->mid_gc[0],
 748                      TRUE, MARGIN, 0, widgets->profile_width, widgets->profile_height);
 749
 750   /* draw grid */
 751   for (i=0; i<=LINES; i++) {
 752     PangoFontDescription *pfd;
 753     PangoLayout *pl = gtk_widget_create_pango_layout (GTK_WIDGET(image), NULL);
 754     gchar s[32];
 755     int w, h;
 756
 757     pango_layout_set_alignment (pl, PANGO_ALIGN_RIGHT);
 758     pfd = pango_font_description_from_string (PROPWIN_LABEL_FONT);
 759     pango_layout_set_font_description (pl, pfd);
 760     pango_font_description_free (pfd);
 761     switch (height_units) {
 762     case VIK_UNITS_HEIGHT_METRES:
 763       sprintf(s, "%8dm", (int)(mina + (LINES-i)*chunksa[widgets->cia]));
 764       break;
 765     case VIK_UNITS_HEIGHT_FEET:
 766       // NB values already converted into feet
 767       sprintf(s, "%8dft", (int)(mina + (LINES-i)*chunksa[widgets->cia]));
 768       break;
 769     default:
 770       sprintf(s, "--");
 771       g_critical("Houston, we've had a problem. height=%d", height_units);
 772     }
 773     pango_layout_set_text(pl, s, -1);
 774     pango_layout_get_pixel_size (pl, &w, &h);
 775     gdk_draw_layout(GDK_DRAWABLE(pix), window->style->fg_gc[0], MARGIN-w-3,
 776                     CLAMP((int)i*widgets->profile_height/LINES - h/2, 0, widgets->profile_height-h), pl);
 777
 778     gdk_draw_line (GDK_DRAWABLE(pix), window->style->dark_gc[0],
 779                    MARGIN, widgets->profile_height/LINES * i, MARGIN + widgets->profile_width, widgets->profile_height/LINES * i);
 780     g_object_unref ( G_OBJECT ( pl ) );
 781     pl = NULL;
 782   }
 783
 784   /* draw elevations */
 785   for ( i = 0; i < widgets->profile_width; i++ )
 786     if ( widgets->altitudes[i] == VIK_DEFAULT_ALTITUDE )
 787       gdk_draw_line ( GDK_DRAWABLE(pix), no_alt_info,
 788                       i + MARGIN, 0, i + MARGIN, widgets->profile_height );
 789     else
 790       gdk_draw_line ( GDK_DRAWABLE(pix), window->style->dark_gc[3],
 791                       i + MARGIN, widgets->profile_height, i + MARGIN, widgets->profile_height-widgets->profile_height*(widgets->altitudes[i]-mina)/(chunksa[widgets->cia]*LINES) );
 792
 793   // Ensure somekind of max speed when not set
 794   if ( widgets->max_speed < 0.01 )
 795     widgets->max_speed = vik_track_get_max_speed(tr);
 796
 797   draw_dem_alt_speed_dist(tr,
 798                           GDK_DRAWABLE(pix),
 799                           dem_alt_gc,
 800                           gps_speed_gc,
 801                           mina,
 802                           maxa - mina,
 803                           widgets->max_speed,
 804                           widgets->cia,
 805                           widgets->profile_width,
 806                           widgets->profile_height,
 807                           MARGIN,
 808                           gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON(widgets->w_show_dem)),
 809                           gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON(widgets->w_show_alt_gps_speed)));
 810
 811   /* draw border */
 812   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->black_gc, FALSE, MARGIN, 0, widgets->profile_width-1, widgets->profile_height-1);
 813
 814   g_object_unref ( G_OBJECT(pix) );
 815   g_object_unref ( G_OBJECT(no_alt_info) );
 816   g_object_unref ( G_OBJECT(dem_alt_gc) );
 817   g_object_unref ( G_OBJECT(gps_speed_gc) );
 818
 819 }
 820
 821 /**
 822  * Draw just the speed (velocity)/time image
 823  */
 824 static void draw_vt ( GtkWidget *image, VikTrack *tr, PropWidgets *widgets)
 825 {
 826   GtkWidget *window;
 827   GdkPixmap *pix;
 828   gdouble mins, maxs;
 829   guint i;
 830
 831   // Free previous allocation
 832   if ( widgets->speeds )
 833     g_free ( widgets->speeds );
 834
 835   widgets->speeds = vik_track_make_speed_map ( tr, widgets->profile_width );
 836   if ( widgets->speeds == NULL )
 837     return;
 838
 839   // Convert into appropriate units
 840   vik_units_speed_t speed_units = a_vik_get_units_speed ();
 841   switch (speed_units) {
 842   case VIK_UNITS_SPEED_KILOMETRES_PER_HOUR:
 843     for ( i = 0; i < widgets->profile_width; i++ ) {
 844       widgets->speeds[i] = VIK_MPS_TO_KPH(widgets->speeds[i]);
 845     }
 846     break;
 847   case VIK_UNITS_SPEED_MILES_PER_HOUR:
 848     for ( i = 0; i < widgets->profile_width; i++ ) {
 849       widgets->speeds[i] = VIK_MPS_TO_MPH(widgets->speeds[i]);
 850     }
 851     break;
 852   case VIK_UNITS_SPEED_KNOTS:
 853     for ( i = 0; i < widgets->profile_width; i++ ) {
 854       widgets->speeds[i] = VIK_MPS_TO_KNOTS(widgets->speeds[i]);
 855     }
 856     break;
 857   default:
 858     // VIK_UNITS_SPEED_METRES_PER_SECOND:
 859     // No need to convert as already in m/s
 860     break;
 861   }
 862
 863   GdkGC *gps_speed_gc;
 864   GdkColor color;
 865
 866   window = gtk_widget_get_toplevel (widgets->speed_box);
 867
 868   pix = gdk_pixmap_new( window->window, widgets->profile_width + MARGIN, widgets->profile_height, -1 );
 869
 870   gtk_image_set_from_pixmap ( GTK_IMAGE(image), pix, NULL );
 871
 872   gps_speed_gc = gdk_gc_new ( window->window );
 873   gdk_color_parse ( "red", &color );
 874   gdk_gc_set_rgb_fg_color ( gps_speed_gc, &color);
 875
 876   minmax_array(widgets->speeds, &widgets->min_speed, &widgets->max_speed, FALSE, widgets->profile_width);
 877   if (widgets->min_speed < 0.0)
 878     widgets->min_speed = 0; /* splines sometimes give negative speeds */
 879
 880   /* Find suitable chunk index */
 881   get_new_min_and_chunk_index (widgets->min_speed, widgets->max_speed, chunkss, sizeof(chunkss)/sizeof(chunkss[0]), &widgets->draw_min_speed, &widgets->cis);
 882
 883   // Assign locally
 884   mins = widgets->draw_min_speed;
 885   maxs = widgets->max_speed;
 886
 887   /* clear the image */
 888   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->bg_gc[0],
 889                      TRUE, 0, 0, MARGIN, widgets->profile_height);
 890   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->mid_gc[0],
 891                      TRUE, MARGIN, 0, widgets->profile_width, widgets->profile_height);
 892
 893   /* draw grid */
 894   for (i=0; i<=LINES; i++) {
 895     PangoFontDescription *pfd;
 896     PangoLayout *pl = gtk_widget_create_pango_layout (GTK_WIDGET(image), NULL);
 897     gchar s[32];
 898     int w, h;
 899
 900     pango_layout_set_alignment (pl, PANGO_ALIGN_RIGHT);
 901     pfd = pango_font_description_from_string (PROPWIN_LABEL_FONT);
 902     pango_layout_set_font_description (pl, pfd);
 903     pango_font_description_free (pfd);
 904     // NB: No need to convert here anymore as numbers are in the appropriate units
 905     switch (speed_units) {
 906     case VIK_UNITS_SPEED_KILOMETRES_PER_HOUR:
 907       sprintf(s, "%8dkm/h", (int)(mins + (LINES-i)*chunkss[widgets->cis]));
 908       break;
 909     case VIK_UNITS_SPEED_MILES_PER_HOUR:
 910       sprintf(s, "%8dmph", (int)(mins + (LINES-i)*chunkss[widgets->cis]));
 911       break;
 912     case VIK_UNITS_SPEED_METRES_PER_SECOND:
 913       sprintf(s, "%8dm/s", (int)(mins + (LINES-i)*chunkss[widgets->cis]));
 914       break;
 915     case VIK_UNITS_SPEED_KNOTS:
 916       sprintf(s, "%8dknots", (int)(mins + (LINES-i)*chunkss[widgets->cis]));
 917       break;
 918     default:
 919       sprintf(s, "--");
 920       g_critical("Houston, we've had a problem. speed=%d", speed_units);
 921     }
 922
 923     pango_layout_set_text(pl, s, -1);
 924     pango_layout_get_pixel_size (pl, &w, &h);
 925     gdk_draw_layout(GDK_DRAWABLE(pix), window->style->fg_gc[0], MARGIN-w-3,
 926                     CLAMP((int)i*widgets->profile_height/LINES - h/2, 0, widgets->profile_height-h), pl);
 927
 928     gdk_draw_line (GDK_DRAWABLE(pix), window->style->dark_gc[0],
 929                    MARGIN, widgets->profile_height/LINES * i, MARGIN + widgets->profile_width, widgets->profile_height/LINES * i);
 930     g_object_unref ( G_OBJECT ( pl ) );
 931     pl = NULL;
 932   }
 933
 934
 935   /* draw speeds */
 936   for ( i = 0; i < widgets->profile_width; i++ )
 937       gdk_draw_line ( GDK_DRAWABLE(pix), window->style->dark_gc[3],
 938                       i + MARGIN, widgets->profile_height, i + MARGIN, widgets->profile_height-widgets->profile_height*(widgets->speeds[i]-mins)/(chunkss[widgets->cis]*LINES) );
 939
 940
 941   time_t beg_time = VIK_TRACKPOINT(tr->trackpoints->data)->timestamp;
 942   time_t dur =  VIK_TRACKPOINT(g_list_last(tr->trackpoints)->data)->timestamp - beg_time;
 943
 944   if ( gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widgets->w_show_gps_speed)) ) {
 945     GList *iter;
 946     for (iter = tr->trackpoints; iter; iter = iter->next) {
 947       gdouble gps_speed = VIK_TRACKPOINT(iter->data)->speed;
 948       if (isnan(gps_speed))
 949         continue;
 950       switch (speed_units) {
 951       case VIK_UNITS_SPEED_KILOMETRES_PER_HOUR:
 952         gps_speed = VIK_MPS_TO_KPH(gps_speed);
 953         break;
 954       case VIK_UNITS_SPEED_MILES_PER_HOUR:
 955         gps_speed = VIK_MPS_TO_MPH(gps_speed);
 956         break;
 957       case VIK_UNITS_SPEED_KNOTS:
 958         gps_speed = VIK_MPS_TO_KNOTS(gps_speed);
 959         break;
 960       default:
 961         // VIK_UNITS_SPEED_METRES_PER_SECOND:
 962         // No need to convert as already in m/s
 963         break;
 964       }
 965       int x = MARGIN + widgets->profile_width * (VIK_TRACKPOINT(iter->data)->timestamp - beg_time) / dur;
 966       int y = widgets->profile_height - widgets->profile_height*(gps_speed - mins)/(chunkss[widgets->cis]*LINES);
 967       gdk_draw_rectangle(GDK_DRAWABLE(pix), gps_speed_gc, TRUE, x-2, y-2, 4, 4);
 968     }
 969   }
 970
 971   /* draw border */
 972   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->black_gc, FALSE, MARGIN, 0, widgets->profile_width-1, widgets->profile_height-1);
 973
 974   g_object_unref ( G_OBJECT(pix) );
 975   g_object_unref ( G_OBJECT(gps_speed_gc) );
 976
 977 }
 978 #undef LINES
 979
 980 /**
 981  * Draw all graphs
 982  */
 983 static void draw_all_graphs ( GtkWidget *widget, gpointer *pass_along, gboolean resized )
 984 {
 985   VikTrack *tr = pass_along[0];
 986   PropWidgets *widgets = pass_along[3];
 987
 988   // Draw graphs even if they are not visible
 989
 990   GList *child = NULL;
 991   GtkWidget *image = NULL;
 992   GtkWidget *window = gtk_widget_get_toplevel(widget);
 993   gdouble pc = NAN;
 994   gdouble pc_blob = NAN;
 995
 996   // Draw elevations
 997   if (widgets->elev_box != NULL) {
 998
 999     // Saved image no longer any good as we've resized, so we remove it here
1000     if (resized && widgets->elev_graph_saved_img.img) {
1001       g_object_unref(widgets->elev_graph_saved_img.img);
1002       widgets->elev_graph_saved_img.img = NULL;
1003       widgets->elev_graph_saved_img.saved = FALSE;
1004     }
1005
1006     child = gtk_container_get_children(GTK_CONTAINER(widgets->elev_box));
1007     draw_elevations (GTK_WIDGET(child->data), tr, widgets );
1008
1009     image = GTK_WIDGET(child->data);
1010     g_list_free(child);
1011
1012     // Ensure marker or blob are redrawn if necessary
1013     if (widgets->is_marker_drawn || widgets->is_blob_drawn) {
1014
1015       pc = tp_percentage_by_distance ( tr, widgets->marker_tp, widgets->track_length );
1016       gdouble x_blob = -MARGIN - 1.0; // i.e. Don't draw unless we get a valid value
1017       gint y_blob = 0;
1018       if (widgets->is_blob_drawn) {
1019         pc_blob = tp_percentage_by_distance ( tr, widgets->blob_tp, widgets->track_length );
1020         if (!isnan(pc_blob)) {
1021           x_blob = (pc_blob * widgets->profile_width);
1022         }
1023         y_blob = blobby_altitude (x_blob, widgets);
1024       }
1025
1026       gdouble marker_x = -1.0; // i.e. Don't draw unless we get a valid value
1027       if (!isnan(pc)) {
1028         marker_x = (pc * widgets->profile_width) + MARGIN;
1029       }
1030
1031       save_image_and_draw_graph_marks (image,
1032                                        marker_x,
1033                                        window->style->black_gc,
1034                                        x_blob+MARGIN,
1035                                        y_blob,
1036                                        &widgets->elev_graph_saved_img,
1037                                        widgets->profile_width,
1038                                        widgets->profile_height,
1039                                        &widgets->is_marker_drawn,
1040                                        &widgets->is_blob_drawn);
1041     }
1042   }
1043
1044   // Draw speeds
1045   if (widgets->speed_box != NULL) {
1046
1047     // Saved image no longer any good as we've resized
1048     if (resized && widgets->speed_graph_saved_img.img) {
1049       g_object_unref(widgets->speed_graph_saved_img.img);
1050       widgets->speed_graph_saved_img.img = NULL;
1051       widgets->speed_graph_saved_img.saved = FALSE;
1052     }
1053
1054     child = gtk_container_get_children(GTK_CONTAINER(widgets->speed_box));
1055     draw_vt (GTK_WIDGET(child->data), tr, widgets );
1056
1057     image = GTK_WIDGET(child->data);
1058     g_list_free(child);
1059
1060     // Ensure marker or blob are redrawn if necessary
1061     if (widgets->is_marker_drawn || widgets->is_blob_drawn) {
1062
1063       pc = tp_percentage_by_time ( tr, widgets->marker_tp );
1064
1065       gdouble x_blob = -MARGIN - 1.0; // i.e. Don't draw unless we get a valid value
1066       gint    y_blob = 0;
1067       if (widgets->is_blob_drawn) {
1068         pc_blob = tp_percentage_by_time ( tr, widgets->blob_tp );
1069         if (!isnan(pc_blob)) {
1070           x_blob = (pc_blob * widgets->profile_width);
1071         }
1072
1073         y_blob = blobby_speed (x_blob, widgets);
1074       }
1075
1076       gdouble marker_x = -1.0; // i.e. Don't draw unless we get a valid value
1077       if (!isnan(pc)) {
1078         marker_x = (pc * widgets->profile_width) + MARGIN;
1079       }
1080
1081       save_image_and_draw_graph_marks (image,
1082                                        marker_x,
1083                                        window->style->black_gc,
1084                                        x_blob+MARGIN,
1085                                        y_blob,
1086                                        &widgets->speed_graph_saved_img,
1087                                        widgets->profile_width,
1088                                        widgets->profile_height,
1089                                        &widgets->is_marker_drawn,
1090                                        &widgets->is_blob_drawn);
1091     }
1092   }
1093 }
1094
1095 /**
1096  * Configure/Resize the profile & speed/time images
1097  */
1098 static gboolean configure_event ( GtkWidget *widget, GdkEventConfigure *event, gpointer *pass_along )
1099 {
1100   PropWidgets *widgets = pass_along[3];
1101
1102   if (widgets->configure_dialog) {
1103     // Determine size offsets between dialog size and size for images
1104     // Only on the initialisation of the dialog
1105     widgets->profile_width_offset = event->width - widgets->profile_width;
1106     widgets->profile_height_offset = event->height - widgets->profile_height;
1107     widgets->configure_dialog = FALSE;
1108
1109     // Without this the settting, the dialog will only grow in vertical size - one can not then make it smaller!
1110     gtk_widget_set_size_request ( widget, widgets->profile_width+widgets->profile_width_offset, widgets->profile_height );
1111     // In fact this allows one to compress it a bit more vertically as I don't add on the height offset
1112   }
1113   else {
1114     widgets->profile_width_old = widgets->profile_width;
1115     widgets->profile_height_old = widgets->profile_height;
1116   }
1117
1118   // Now adjust From Dialog size to get image size
1119   widgets->profile_width = event->width - widgets->profile_width_offset;
1120   widgets->profile_height = event->height - widgets->profile_height_offset;
1121
1122   // ATM we receive configure_events when the dialog is moved and so no further action is necessary
1123   if ( !widgets->configure_dialog &&
1124        (widgets->profile_width_old == widgets->profile_width) && (widgets->profile_height_old == widgets->profile_height) )
1125     return FALSE;
1126
1127   // Draw stuff
1128   draw_all_graphs ( widget, pass_along, TRUE );
1129
1130   return FALSE;
1131 }
1132
1133 /**
1134  * Create height profile widgets including the image and callbacks
1135  */
1136 GtkWidget *vik_trw_layer_create_profile ( GtkWidget *window, VikTrack *tr, gpointer vlp, VikViewport *vvp, PropWidgets *widgets, gdouble *min_alt, gdouble *max_alt)
1137 {
1138   GdkPixmap *pix;
1139   GtkWidget *image;
1140   GtkWidget *eventbox;
1141   gpointer *pass_along;
1142
1143   // First allocation
1144   widgets->altitudes = vik_track_make_elevation_map ( tr, widgets->profile_width );
1145
1146   if ( widgets->altitudes == NULL ) {
1147     *min_alt = *max_alt = VIK_DEFAULT_ALTITUDE;
1148     return NULL;
1149   }
1150
1151   minmax_array(widgets->altitudes, min_alt, max_alt, TRUE, widgets->profile_width);
1152
1153   pix = gdk_pixmap_new( window->window, widgets->profile_width + MARGIN, widgets->profile_height, -1 );
1154   image = gtk_image_new_from_pixmap ( pix, NULL );
1155
1156   g_object_unref ( G_OBJECT(pix) );
1157
1158   pass_along = g_malloc ( sizeof(gpointer) * 4 ); /* FIXME: mem leak -- never be freed */
1159   pass_along[0] = tr;
1160   pass_along[1] = vlp;
1161   pass_along[2] = vvp;
1162   pass_along[3] = widgets;
1163
1164   eventbox = gtk_event_box_new ();
1165   g_signal_connect ( G_OBJECT(eventbox), "button_press_event", G_CALLBACK(track_profile_click), pass_along );
1166   g_signal_connect ( G_OBJECT(eventbox), "motion_notify_event", G_CALLBACK(track_profile_move), pass_along );
1167   g_signal_connect_swapped ( G_OBJECT(eventbox), "destroy", G_CALLBACK(g_free), pass_along );
1168   gtk_container_add ( GTK_CONTAINER(eventbox), image );
1169   gtk_widget_set_events (eventbox, GDK_BUTTON_PRESS_MASK | GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_STRUCTURE_MASK);
1170
1171   return eventbox;
1172 }
1173
1174 /**
1175  * Create speed/time widgets including the image and callbacks
1176  */
1177 GtkWidget *vik_trw_layer_create_vtdiag ( GtkWidget *window, VikTrack *tr, gpointer vlp, VikViewport *vvp, PropWidgets *widgets)
1178 {
1179   GdkPixmap *pix;
1180   GtkWidget *image;
1181   GtkWidget *eventbox;
1182   gpointer *pass_along;
1183
1184   // First allocation
1185   widgets->speeds = vik_track_make_speed_map ( tr, widgets->profile_width );
1186   if ( widgets->speeds == NULL )
1187     return NULL;
1188
1189   pass_along = g_malloc ( sizeof(gpointer) * 4 ); /* FIXME: mem leak -- never be freed */
1190   pass_along[0] = tr;
1191   pass_along[1] = vlp;
1192   pass_along[2] = vvp;
1193   pass_along[3] = widgets;
1194
1195   pix = gdk_pixmap_new( window->window, widgets->profile_width + MARGIN, widgets->profile_height, -1 );
1196   image = gtk_image_new_from_pixmap ( pix, NULL );
1197
1198 #if 0
1199   /* XXX this can go out, it's just a helpful dev tool */
1200   {
1201     int j;
1202     GdkGC **colors[8] = { window->style->bg_gc,
1203                           window->style->fg_gc,
1204                           window->style->light_gc,
1205                           window->style->dark_gc,
1206                           window->style->mid_gc,
1207                           window->style->text_gc,
1208                           window->style->base_gc,
1209                           window->style->text_aa_gc };
1210     for (i=0; i<5; i++) {
1211       for (j=0; j<8; j++) {
1212         gdk_draw_rectangle(GDK_DRAWABLE(pix), colors[j][i],
1213                            TRUE, i*20, j*20, 20, 20);
1214         gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->black_gc,
1215                            FALSE, i*20, j*20, 20, 20);
1216       }
1217     }
1218   }
1219 #endif
1220
1221   g_object_unref ( G_OBJECT(pix) );
1222
1223   eventbox = gtk_event_box_new ();
1224   g_signal_connect ( G_OBJECT(eventbox), "button_press_event", G_CALLBACK(track_vt_click), pass_along );
1225   g_signal_connect ( G_OBJECT(eventbox), "motion_notify_event", G_CALLBACK(track_vt_move), pass_along );
1226   g_signal_connect_swapped ( G_OBJECT(eventbox), "destroy", G_CALLBACK(g_free), pass_along );
1227   gtk_container_add ( GTK_CONTAINER(eventbox), image );
1228   gtk_widget_set_events (eventbox, GDK_BUTTON_PRESS_MASK | GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK);
1229
1230   return eventbox;
1231 }
1232 #undef MARGIN
1233
1234 static void propwin_response_cb( GtkDialog *dialog, gint resp, PropWidgets *widgets)
1235 {
1236   VikTrack *tr = widgets->tr;
1237   VikTrwLayer *vtl = widgets->vtl;
1238   gboolean keep_dialog = FALSE;
1239
1240   /* FIXME: check and make sure the track still exists before doing anything to it */
1241   /* Note: destroying diaglog (eg, parent window exit) won't give "response" */
1242   switch (resp) {
1243     case GTK_RESPONSE_DELETE_EVENT: /* received delete event (not from buttons) */
1244     case GTK_RESPONSE_REJECT:
1245       break;
1246     case GTK_RESPONSE_ACCEPT:
1247       vik_track_set_comment(tr, gtk_entry_get_text(GTK_ENTRY(widgets->w_comment)));
1248       break;
1249     case VIK_TRW_LAYER_PROPWIN_REVERSE:
1250       vik_track_reverse(tr);
1251       vik_layer_emit_update ( VIK_LAYER(vtl) );
1252       break;
1253     case VIK_TRW_LAYER_PROPWIN_DEL_DUP:
1254       vik_track_remove_dup_points(tr);
1255       /* above operation could have deleted current_tp or last_tp */
1256       trw_layer_cancel_tps_of_track ( vtl, widgets->track_name );
1257       vik_layer_emit_update ( VIK_LAYER(vtl) );
1258       break;
1259     case VIK_TRW_LAYER_PROPWIN_SPLIT:
1260       {
1261         /* get new tracks, add them, resolve naming conflicts (free if cancel), and delete old. old can still exist on clipboard. */
1262         guint ntracks;
1263         VikTrack **tracks = vik_track_split_into_segments(tr, &ntracks);
1264         gchar *new_tr_name;
1265         guint i;
1266         for ( i = 0; i < ntracks; i++ )
1267         {
1268           g_assert ( tracks[i] );
1269           new_tr_name = g_strdup_printf("%s #%d", widgets->track_name, i+1);
1270           /* if ( (wp_exists) && (! overwrite) ) */
1271           /* don't need to upper case new_tr_name because old tr name was uppercase */
1272           if ( vik_trw_layer_get_track(vtl, new_tr_name ) &&
1273              ( ! a_dialog_yes_or_no ( VIK_GTK_WINDOW_FROM_LAYER(vtl), "The track \"%s\" exists, do you wish to overwrite it?", new_tr_name ) ) )
1274           {
1275             gchar *new_new_tr_name = a_dialog_new_track ( VIK_GTK_WINDOW_FROM_LAYER(vtl), vik_trw_layer_get_tracks(vtl), NULL );
1276             g_free ( new_tr_name );
1277             if (new_new_tr_name)
1278               new_tr_name = new_new_tr_name;
1279             else
1280             {
1281               new_tr_name = NULL;
1282               vik_track_free ( tracks[i] );
1283             }
1284           }
1285           if ( new_tr_name )
1286             vik_trw_layer_add_track ( vtl, new_tr_name, tracks[i] );
1287         }
1288         if ( tracks )
1289         {
1290           g_free ( tracks );
1291           /* Don't let track destroy this dialog */
1292           vik_track_clear_property_dialog(tr);
1293           vik_trw_layer_delete_track ( vtl, widgets->track_name );
1294           vik_layer_emit_update ( VIK_LAYER(vtl) ); /* chase thru the hoops */
1295         }
1296       }
1297       break;
1298     case VIK_TRW_LAYER_PROPWIN_SPLIT_MARKER:
1299       {
1300         GList *iter = tr->trackpoints;
1301         while ((iter = iter->next)) {
1302           if (widgets->marker_tp == VIK_TRACKPOINT(iter->data))
1303             break;
1304         }
1305         if (iter == NULL) {
1306           a_dialog_msg(VIK_GTK_WINDOW_FROM_LAYER(vtl), GTK_MESSAGE_ERROR,
1307                   _("Failed spliting track. Track unchanged"), NULL);
1308           keep_dialog = TRUE;
1309           break;
1310         }
1311
1312         gchar *r_name = g_strdup_printf("%s #R", widgets->track_name);
1313         if (vik_trw_layer_get_track(vtl, r_name ) &&
1314              ( ! a_dialog_yes_or_no( VIK_GTK_WINDOW_FROM_LAYER(vtl),
1315               "The track \"%s\" exists, do you wish to overwrite it?", r_name)))
1316         {
1317           gchar *new_r_name = a_dialog_new_track( VIK_GTK_WINDOW_FROM_LAYER(vtl), vik_trw_layer_get_tracks(vtl), NULL );
1318             if (new_r_name) {
1319               g_free( r_name );
1320               r_name = new_r_name;
1321             }
1322             else {
1323               a_dialog_msg(VIK_GTK_WINDOW_FROM_LAYER(vtl), GTK_MESSAGE_WARNING,
1324                   _("Operation Aborted. Track unchanged"), NULL);
1325               keep_dialog = TRUE;
1326               break;
1327             }
1328         }
1329         iter->prev->next = NULL;
1330         iter->prev = NULL;
1331         VikTrack *tr_right = vik_track_new();
1332         if ( tr->comment )
1333           vik_track_set_comment ( tr_right, tr->comment );
1334         tr_right->visible = tr->visible;
1335         tr_right->trackpoints = iter;
1336
1337         vik_trw_layer_add_track(vtl, r_name, tr_right);
1338         vik_layer_emit_update ( VIK_LAYER(vtl) );
1339       }
1340       break;
1341     default:
1342       fprintf(stderr, "DEBUG: unknown response\n");
1343       return;
1344   }
1345
1346   /* Keep same behaviour for now: destroy dialog if click on any button */
1347   if (!keep_dialog) {
1348     prop_widgets_free(widgets);
1349     vik_track_clear_property_dialog(tr);
1350     gtk_widget_destroy ( GTK_WIDGET(dialog) );
1351   }
1352 }
1353
1354 /**
1355  * Force a redraw when checkbutton has been toggled to show/hide that information
1356  */
1357 static void checkbutton_toggle_cb ( GtkToggleButton *togglebutton, gpointer *pass_along, gpointer dummy)
1358 {
1359   PropWidgets *widgets = pass_along[3];
1360   // Even though not resized, we'll pretend it is -
1361   //  as this invalidates the saved images (since the image may have changed)
1362   draw_all_graphs ( widgets->dialog, pass_along, TRUE);
1363 }
1364
1365 /**
1366  *  Create the widgets for the given graph tab
1367  */
1368 static GtkWidget *create_graph_page ( GtkWidget *graph,
1369                                       const gchar *markup,
1370                                       GtkWidget *value,
1371                                       const gchar *markup2,
1372                                       GtkWidget *value2,
1373                                       GtkWidget *checkbutton1,
1374                                       gboolean checkbutton1_default,
1375                                       GtkWidget *checkbutton2,
1376                                       gboolean checkbutton2_default )
1377 {
1378   GtkWidget *hbox = gtk_hbox_new ( FALSE, 10 );
1379   GtkWidget *vbox = gtk_vbox_new ( FALSE, 10 );
1380   GtkWidget *label = gtk_label_new (NULL);
1381   GtkWidget *label2 = gtk_label_new (NULL);
1382   gtk_box_pack_start (GTK_BOX(vbox), graph, FALSE, FALSE, 0);
1383   gtk_label_set_markup ( GTK_LABEL(label), markup );
1384   gtk_label_set_markup ( GTK_LABEL(label2), markup2 );
1385   gtk_box_pack_start (GTK_BOX(hbox), label, FALSE, FALSE, 0);
1386   gtk_box_pack_start (GTK_BOX(hbox), value, FALSE, FALSE, 0);
1387   gtk_box_pack_start (GTK_BOX(hbox), label2, FALSE, FALSE, 0);
1388   gtk_box_pack_start (GTK_BOX(hbox), value2, FALSE, FALSE, 0);
1389   if (checkbutton2) {
1390     gtk_box_pack_end (GTK_BOX(hbox), checkbutton2, FALSE, FALSE, 0);
1391     gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON(checkbutton2), checkbutton2_default);
1392   }
1393   if (checkbutton1) {
1394     gtk_box_pack_end (GTK_BOX(hbox), checkbutton1, FALSE, FALSE, 0);
1395     gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON(checkbutton1), checkbutton1_default);
1396   }
1397   gtk_box_pack_start (GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
1398
1399   return vbox;
1400 }
1401
1402 void vik_trw_layer_propwin_run ( GtkWindow *parent, VikTrwLayer *vtl, VikTrack *tr, gpointer vlp, gchar *track_name, VikViewport *vvp )
1403 {
1404   /* FIXME: free widgets when destroy signal received */
1405   PropWidgets *widgets = prop_widgets_new();
1406   widgets->vtl = vtl;
1407   widgets->tr = tr;
1408   widgets->profile_width  = PROPWIN_PROFILE_WIDTH;
1409   widgets->profile_height = PROPWIN_PROFILE_HEIGHT;
1410   widgets->track_name = track_name;
1411   gchar *title = g_strdup_printf(_("%s - Track Properties"), track_name);
1412   GtkWidget *dialog = gtk_dialog_new_with_buttons (title,
1413                          parent,
1414                          GTK_DIALOG_DESTROY_WITH_PARENT | GTK_DIALOG_NO_SEPARATOR,
1415                          GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
1416                          _("Split at _Marker"), VIK_TRW_LAYER_PROPWIN_SPLIT_MARKER,
1417                          _("Split _Segments"), VIK_TRW_LAYER_PROPWIN_SPLIT,
1418                          _("_Reverse"),        VIK_TRW_LAYER_PROPWIN_REVERSE,
1419                          _("_Delete Dupl."),   VIK_TRW_LAYER_PROPWIN_DEL_DUP,
1420                          GTK_STOCK_OK,     GTK_RESPONSE_ACCEPT,
1421                          NULL);
1422   widgets->dialog = dialog;
1423   g_free(title);
1424   g_signal_connect(dialog, "response", G_CALLBACK(propwin_response_cb), widgets);
1425   GtkTable *table;
1426   gdouble tr_len;
1427   guint32 tp_count, seg_count;
1428
1429   gdouble min_alt, max_alt;
1430   widgets->elev_box = vik_trw_layer_create_profile(GTK_WIDGET(parent), tr, vlp, vvp, widgets, &min_alt, &max_alt);
1431   widgets->speed_box = vik_trw_layer_create_vtdiag(GTK_WIDGET(parent), tr, vlp, vvp, widgets);
1432   GtkWidget *graphs = gtk_notebook_new();
1433
1434   GtkWidget *content[20];
1435   int cnt;
1436   int i;
1437
1438   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>") };
1439   static gchar tmp_buf[50];
1440   gdouble tmp_speed;
1441
1442   cnt = 0;
1443   widgets->w_comment = gtk_entry_new ();
1444   if ( tr->comment )
1445     gtk_entry_set_text ( GTK_ENTRY(widgets->w_comment), tr->comment );
1446   g_signal_connect_swapped ( widgets->w_comment, "activate", G_CALLBACK(a_dialog_response_accept), GTK_DIALOG(dialog) );
1447   content[cnt++] = widgets->w_comment;
1448
1449   vik_units_distance_t dist_units = a_vik_get_units_distance ();
1450
1451   tr_len = widgets->track_length = vik_track_get_length(tr);
1452   switch (dist_units) {
1453   case VIK_UNITS_DISTANCE_KILOMETRES:
1454     g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f km", tr_len/1000.0 );
1455     break;
1456   case VIK_UNITS_DISTANCE_MILES:
1457     g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f miles", VIK_METERS_TO_MILES(tr_len) );
1458     break;
1459   default:
1460     g_critical("Houston, we've had a problem. distance=%d", dist_units);
1461   }
1462   widgets->w_track_length = content[cnt++] = gtk_label_new ( tmp_buf );
1463
1464   tp_count = vik_track_get_tp_count(tr);
1465   g_snprintf(tmp_buf, sizeof(tmp_buf), "%u", tp_count );
1466   widgets->w_tp_count = content[cnt++] = gtk_label_new ( tmp_buf );
1467
1468   seg_count = vik_track_get_segment_count(tr) ;
1469   g_snprintf(tmp_buf, sizeof(tmp_buf), "%u", seg_count );
1470   widgets->w_segment_count = content[cnt++] = gtk_label_new ( tmp_buf );
1471
1472   g_snprintf(tmp_buf, sizeof(tmp_buf), "%lu", vik_track_get_dup_point_count(tr) );
1473   widgets->w_duptp_count = content[cnt++] = gtk_label_new ( tmp_buf );
1474
1475   vik_units_speed_t speed_units = a_vik_get_units_speed ();
1476   tmp_speed = vik_track_get_max_speed(tr);
1477   if ( tmp_speed == 0 )
1478     g_snprintf(tmp_buf, sizeof(tmp_buf), _("No Data"));
1479   else {
1480     switch (speed_units) {
1481     case VIK_UNITS_SPEED_KILOMETRES_PER_HOUR:
1482       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f km/h", VIK_MPS_TO_KPH(tmp_speed));
1483       break;
1484     case VIK_UNITS_SPEED_MILES_PER_HOUR:
1485       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f mph", VIK_MPS_TO_MPH(tmp_speed));
1486       break;
1487     case VIK_UNITS_SPEED_METRES_PER_SECOND:
1488       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f m/s", tmp_speed );
1489       break;
1490     case VIK_UNITS_SPEED_KNOTS:
1491       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f knots", VIK_MPS_TO_KNOTS(tmp_speed));
1492       break;
1493     default:
1494       g_snprintf (tmp_buf, sizeof(tmp_buf), "--" );
1495       g_critical("Houston, we've had a problem. speed=%d", speed_units);
1496     }
1497   }
1498   widgets->w_max_speed = content[cnt++] = gtk_label_new ( tmp_buf );
1499
1500   tmp_speed = vik_track_get_average_speed(tr);
1501   if ( tmp_speed == 0 )
1502     g_snprintf(tmp_buf, sizeof(tmp_buf), _("No Data"));
1503   else {
1504     switch (speed_units) {
1505     case VIK_UNITS_SPEED_KILOMETRES_PER_HOUR:
1506       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f km/h", VIK_MPS_TO_KPH(tmp_speed));
1507       break;
1508     case VIK_UNITS_SPEED_MILES_PER_HOUR:
1509       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f mph", VIK_MPS_TO_MPH(tmp_speed));
1510       break;
1511     case VIK_UNITS_SPEED_METRES_PER_SECOND:
1512       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f m/s", tmp_speed );
1513       break;
1514     case VIK_UNITS_SPEED_KNOTS:
1515       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f knots", VIK_MPS_TO_KNOTS(tmp_speed));
1516       break;
1517     default:
1518       g_snprintf (tmp_buf, sizeof(tmp_buf), "--" );
1519       g_critical("Houston, we've had a problem. speed=%d", speed_units);
1520     }
1521   }
1522   widgets->w_avg_speed = content[cnt++] = gtk_label_new ( tmp_buf );
1523
1524   switch (dist_units) {
1525   case VIK_UNITS_DISTANCE_KILOMETRES:
1526     // Even though kilometres, the average distance between points is going to be quite small so keep in metres
1527     g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f m", (tp_count - seg_count) == 0 ? 0 : tr_len / ( tp_count - seg_count ) );
1528     break;
1529   case VIK_UNITS_DISTANCE_MILES:
1530     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 )) );
1531     break;
1532   default:
1533     g_critical("Houston, we've had a problem. distance=%d", dist_units);
1534   }
1535   widgets->w_avg_dist = content[cnt++] = gtk_label_new ( tmp_buf );
1536
1537   vik_units_height_t height_units = a_vik_get_units_height ();
1538   if ( min_alt == VIK_DEFAULT_ALTITUDE )
1539     g_snprintf(tmp_buf, sizeof(tmp_buf), _("No Data"));
1540   else {
1541     switch (height_units) {
1542     case VIK_UNITS_HEIGHT_METRES:
1543       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.0f m - %.0f m", min_alt, max_alt );
1544       break;
1545     case VIK_UNITS_HEIGHT_FEET:
1546       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.0f feet - %.0f feet", VIK_METERS_TO_FEET(min_alt), VIK_METERS_TO_FEET(max_alt) );
1547       break;
1548     default:
1549       g_snprintf(tmp_buf, sizeof(tmp_buf), "--" );
1550       g_critical("Houston, we've had a problem. height=%d", height_units);
1551     }
1552   }
1553   widgets->w_elev_range = content[cnt++] = gtk_label_new ( tmp_buf );
1554
1555   vik_track_get_total_elevation_gain(tr, &max_alt, &min_alt );
1556   if ( min_alt == VIK_DEFAULT_ALTITUDE )
1557     g_snprintf(tmp_buf, sizeof(tmp_buf), _("No Data"));
1558   else {
1559     switch (height_units) {
1560     case VIK_UNITS_HEIGHT_METRES:
1561       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.0f m / %.0f m", max_alt, min_alt );
1562       break;
1563     case VIK_UNITS_HEIGHT_FEET:
1564       g_snprintf(tmp_buf, sizeof(tmp_buf), "%.0f feet / %.0f feet", VIK_METERS_TO_FEET(max_alt), VIK_METERS_TO_FEET(min_alt) );
1565       break;
1566     default:
1567       g_snprintf(tmp_buf, sizeof(tmp_buf), "--" );
1568       g_critical("Houston, we've had a problem. height=%d", height_units);
1569     }
1570   }
1571   widgets->w_elev_gain = content[cnt++] = gtk_label_new ( tmp_buf );
1572
1573 #if 0
1574 #define PACK(w) gtk_box_pack_start (GTK_BOX(right_vbox), w, FALSE, FALSE, 0);
1575   gtk_box_pack_start (GTK_BOX(right_vbox), e_cmt, FALSE, FALSE, 0);
1576   PACK(l_len);
1577   PACK(l_tps);
1578   PACK(l_segs);
1579   PACK(l_dups);
1580   PACK(l_maxs);
1581   PACK(l_avgs);
1582   PACK(l_avgd);
1583   PACK(l_elev);
1584   PACK(l_galo);
1585 #undef PACK;
1586 #endif
1587
1588   if ( tr->trackpoints && VIK_TRACKPOINT(tr->trackpoints->data)->timestamp )
1589   {
1590     time_t t1, t2;
1591     t1 = VIK_TRACKPOINT(tr->trackpoints->data)->timestamp;
1592     t2 = VIK_TRACKPOINT(g_list_last(tr->trackpoints)->data)->timestamp;
1593
1594     strncpy(tmp_buf, ctime(&t1), sizeof(tmp_buf));
1595     tmp_buf[sizeof(tmp_buf)-1] = 0;
1596     g_strchomp(tmp_buf);
1597     widgets->w_time_start = content[cnt++] = gtk_label_new(tmp_buf);
1598
1599     strncpy(tmp_buf, ctime(&t2), sizeof(tmp_buf));
1600     tmp_buf[sizeof(tmp_buf)-1] = 0;
1601     g_strchomp(tmp_buf);
1602     widgets->w_time_end = content[cnt++] = gtk_label_new(tmp_buf);
1603
1604     g_snprintf(tmp_buf, sizeof(tmp_buf), _("%d minutes"), (int)(t2-t1)/60);
1605     widgets->w_time_dur = content[cnt++] = gtk_label_new(tmp_buf);
1606   } else {
1607     widgets->w_time_start = content[cnt++] = gtk_label_new(_("No Data"));
1608     widgets->w_time_end = content[cnt++] = gtk_label_new(_("No Data"));
1609     widgets->w_time_dur = content[cnt++] = gtk_label_new(_("No Data"));
1610   }
1611
1612   table = GTK_TABLE(gtk_table_new (cnt, 2, FALSE));
1613   gtk_table_set_col_spacing (table, 0, 10);
1614   for (i=0; i<cnt; i++) {
1615     GtkWidget *label;
1616
1617     // Settings so the text positioning only moves around vertically when the dialog is resized
1618     // This also gives more room to see the track comment
1619     label = gtk_label_new(NULL);
1620     gtk_misc_set_alignment ( GTK_MISC(label), 1, 0.5 ); // Position text centrally in vertical plane
1621     gtk_label_set_markup ( GTK_LABEL(label), _(label_texts[i]) );
1622     gtk_table_attach ( table, label, 0, 1, i, i+1, GTK_FILL, GTK_SHRINK, 0, 0 );
1623     if (GTK_IS_MISC(content[i])) {
1624       gtk_misc_set_alignment ( GTK_MISC(content[i]), 0, 0.5 );
1625     }
1626     gtk_table_attach_defaults ( table, content[i], 1, 2, i, i+1 );
1627   }
1628
1629   gtk_notebook_append_page(GTK_NOTEBOOK(graphs), GTK_WIDGET(table), gtk_label_new(_("Statistics")));
1630
1631   gpointer *pass_along;
1632   pass_along = g_malloc ( sizeof(gpointer) * 4 ); /* FIXME: mem leak -- never be freed */
1633   pass_along[0] = tr;
1634   pass_along[1] = vlp;
1635   pass_along[2] = vvp;
1636   pass_along[3] = widgets;
1637
1638   if ( widgets->elev_box ) {
1639     GtkWidget *page = NULL;
1640     widgets->w_cur_dist = gtk_label_new(_("No Data"));
1641     widgets->w_cur_elevation = gtk_label_new(_("No Data"));
1642     widgets->w_show_dem = gtk_check_button_new_with_mnemonic(_("Show D_EM"));
1643     widgets->w_show_alt_gps_speed = gtk_check_button_new_with_mnemonic(_("Show _GPS Speed"));
1644     page = create_graph_page (widgets->elev_box,
1645                               _("<b>Track Distance:</b>"), widgets->w_cur_dist,
1646                               _("<b>Track Height:</b>"), widgets->w_cur_elevation,
1647                               widgets->w_show_dem, TRUE,
1648                               widgets->w_show_alt_gps_speed, TRUE);
1649     g_signal_connect (widgets->w_show_dem, "toggled", G_CALLBACK (checkbutton_toggle_cb), pass_along);
1650     g_signal_connect (widgets->w_show_alt_gps_speed, "toggled", G_CALLBACK (checkbutton_toggle_cb), pass_along);
1651     gtk_notebook_append_page(GTK_NOTEBOOK(graphs), page, gtk_label_new(_("Elevation-distance")));
1652   }
1653
1654   if ( widgets->speed_box ) {
1655     GtkWidget *page = NULL;
1656     widgets->w_cur_time = gtk_label_new(_("No Data"));
1657     widgets->w_cur_speed = gtk_label_new(_("No Data"));
1658     widgets->w_show_gps_speed = gtk_check_button_new_with_mnemonic(_("Show _GPS Speed"));
1659     page = create_graph_page (widgets->speed_box,
1660                               _("<b>Track Time:</b>"), widgets->w_cur_time,
1661                               _("<b>Track Speed:</b>"), widgets->w_cur_speed,
1662                               widgets->w_show_gps_speed, TRUE,
1663                               NULL, FALSE);
1664     g_signal_connect (widgets->w_show_gps_speed, "toggled", G_CALLBACK (checkbutton_toggle_cb), pass_along);
1665     gtk_notebook_append_page(GTK_NOTEBOOK(graphs), page, gtk_label_new(_("Speed-time")));
1666   }
1667
1668   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), graphs, FALSE, FALSE, 0);
1669
1670   gtk_dialog_set_response_sensitive(GTK_DIALOG(dialog), VIK_TRW_LAYER_PROPWIN_SPLIT_MARKER, FALSE);
1671   if (seg_count <= 1)
1672     gtk_dialog_set_response_sensitive(GTK_DIALOG(dialog), VIK_TRW_LAYER_PROPWIN_SPLIT, FALSE);
1673   if (vik_track_get_dup_point_count(tr) <= 0)
1674     gtk_dialog_set_response_sensitive(GTK_DIALOG(dialog), VIK_TRW_LAYER_PROPWIN_DEL_DUP, FALSE);
1675
1676   // On dialog realization configure_event casues the graphs to be initially drawn
1677   widgets->configure_dialog = TRUE;
1678   g_signal_connect ( G_OBJECT(dialog), "configure-event", G_CALLBACK (configure_event), pass_along);
1679
1680   vik_track_set_property_dialog(tr, dialog);
1681   gtk_dialog_set_default_response ( GTK_DIALOG(dialog), GTK_RESPONSE_ACCEPT );
1682   gtk_widget_show_all ( dialog );
1683 }