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  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include "config.h"
  24 #endif
  25
  26 #include <math.h>
  27
  28 #include <gtk/gtk.h>
  29 #include <glib/gi18n.h>
  30 #include <time.h>
  31 #include <string.h>
  32 #include "coords.h"
  33 #include "vikcoord.h"
  34 #include "viktrack.h"
  35 #include "viktrwlayer.h"
  36 #include "viktrwlayer_propwin.h"
  37 #include "vikwaypoint.h"
  38 #include "dialog.h"
  39 #include "globals.h"
  40 #include "dems.h"
  41
  42 #include "vikviewport.h" /* ugh */
  43 #include "viktreeview.h" /* ugh */
  44 #include <gdk-pixbuf/gdk-pixdata.h>
  45 #include "viklayer.h" /* ugh */
  46 #include "vikaggregatelayer.h"
  47 #include "viklayerspanel.h" /* ugh */
  48
  49 #define PROFILE_WIDTH 600
  50 #define PROFILE_HEIGHT 300
  51 #define MIN_ALT_DIFF 100.0
  52 #define MIN_SPEED_DIFF 20.0
  53
  54 typedef struct _propsaved {
  55   gboolean saved;
  56   gint pos;
  57   GdkImage *img;
  58 } PropSaved;
  59
  60 typedef struct _propwidgets {
  61   VikTrwLayer *vtl;
  62   VikTrack *tr;
  63   VikLayersPanel *vlp;
  64   gchar *track_name;
  65   GtkWidget *w_comment;
  66   GtkWidget *w_track_length;
  67   GtkWidget *w_tp_count;
  68   GtkWidget *w_segment_count;
  69   GtkWidget *w_duptp_count;
  70   GtkWidget *w_max_speed;
  71   GtkWidget *w_avg_speed;
  72   GtkWidget *w_avg_dist;
  73   GtkWidget *w_elev_range;
  74   GtkWidget *w_elev_gain;
  75   GtkWidget *w_time_start;
  76   GtkWidget *w_time_end;
  77   GtkWidget *w_time_dur;
  78   GtkWidget *w_dist_time;
  79   PropSaved elev_graph_saved_img;
  80   PropSaved speed_graph_saved_img;
  81 } PropWidgets;
  82
  83 static PropWidgets *prop_widgets_new()
  84 {
  85   PropWidgets *widgets = g_malloc0(sizeof(PropWidgets));
  86
  87   return widgets;
  88 }
  89
  90 static void prop_widgets_free(PropWidgets *widgets)
  91 {
  92
  93   if (widgets->elev_graph_saved_img.img)
  94     g_object_unref(widgets->elev_graph_saved_img.img);
  95   if (widgets->speed_graph_saved_img.img)
  96     g_object_unref(widgets->speed_graph_saved_img.img);
  97   g_free(widgets);
  98 }
  99
 100 static void minmax_alt(const gdouble *altitudes, gdouble *min, gdouble *max)
 101 {
 102   *max = -1000;
 103   *min = 20000;
 104   guint i;
 105   for ( i=0; i < PROFILE_WIDTH; i++ ) {
 106     if ( altitudes[i] != VIK_DEFAULT_ALTITUDE ) {
 107       if ( altitudes[i] > *max )
 108         *max = altitudes[i];
 109       if ( altitudes[i] < *min )
 110         *min = altitudes[i];
 111     }
 112   }
 113 }
 114
 115 #define MARGIN 50
 116 #define LINES 5
 117 static void set_center_at_graph_position(gdouble event_x, gint img_width, VikLayersPanel *vlp, VikTrack *tr, gboolean time_base)
 118 {
 119   VikTrackpoint *trackpoint;
 120   gdouble x = event_x - img_width / 2 + PROFILE_WIDTH / 2 - MARGIN / 2;
 121   if (x < 0)
 122     x = 0;
 123   if (x > PROFILE_WIDTH)
 124     x = PROFILE_WIDTH;
 125
 126   if (time_base)
 127     trackpoint = vik_track_get_closest_tp_by_percentage_time ( tr, (gdouble) x / PROFILE_WIDTH, NULL );
 128   else
 129     trackpoint = vik_track_get_closest_tp_by_percentage_dist ( tr, (gdouble) x / PROFILE_WIDTH, NULL );
 130
 131   if ( trackpoint ) {
 132     VikCoord coord = trackpoint->coord;
 133     vik_viewport_set_center_coord ( vik_layers_panel_get_viewport(vlp), &coord );
 134     vik_layers_panel_emit_update ( vlp );
 135   }
 136 }
 137
 138 static void draw_graph_mark(GtkWidget *image, gdouble x, GdkGC *gc, PropSaved *saved_img)
 139 {
 140   GdkPixmap *pix;
 141   const int saved_width = 5;
 142
 143   gtk_image_get_pixmap(GTK_IMAGE(image), &pix, NULL);
 144   if (saved_img->saved) {
 145     gdk_draw_image(GDK_DRAWABLE(pix), gc, saved_img->img, 0, 0,
 146         saved_img->pos, 0, -1, -1);
 147     saved_img->saved = FALSE;
 148     gtk_widget_queue_draw_area(image, saved_img->pos, 0,
 149         saved_img->img->width, saved_img->img->height);
 150   }
 151   if ((x >= MARGIN) && (x < (PROFILE_WIDTH + MARGIN))) {
 152     if (saved_img->img)
 153       gdk_drawable_copy_to_image(GDK_DRAWABLE(pix), saved_img->img,
 154           x - (saved_width/2), 0, 0, 0, saved_img->img->width, saved_img->img->height);
 155     else
 156       saved_img->img = gdk_drawable_copy_to_image(GDK_DRAWABLE(pix),
 157           saved_img->img, x - (saved_width/2), 0, 0, 0, saved_width, PROFILE_HEIGHT);
 158     saved_img->pos = x - (saved_width/2);
 159     saved_img->saved = TRUE;
 160     gdk_draw_line (GDK_DRAWABLE(pix), gc, x, 0, x, image->allocation.height);
 161     /* redraw the area which contains the line, saved_width is just convenient */
 162     gtk_widget_queue_draw_area(image, x - saved_width/2, 0, saved_width, PROFILE_HEIGHT);
 163   }
 164 }
 165
 166 static void track_graph_click( GtkWidget *event_box, GdkEventButton *event, gpointer *pass_along, gboolean is_vt_graph )
 167 {
 168   VikTrack *tr = pass_along[0];
 169   VikLayersPanel *vlp = pass_along[1];
 170   PropWidgets *widgets = pass_along[2];
 171   GList *child = gtk_container_get_children(GTK_CONTAINER(event_box));
 172   GtkWidget *image = GTK_WIDGET(child->data);
 173   GtkWidget *window = gtk_widget_get_toplevel(GTK_WIDGET(event_box));
 174
 175
 176   set_center_at_graph_position(event->x, event_box->allocation.width, vlp, tr, is_vt_graph);
 177   draw_graph_mark(image, event->x, window->style->black_gc,
 178       is_vt_graph ? &widgets->speed_graph_saved_img : &widgets->elev_graph_saved_img);
 179   g_list_free(child);
 180
 181 }
 182
 183 static gboolean track_profile_click( GtkWidget *event_box, GdkEventButton *event, gpointer *pass_along )
 184 {
 185   track_graph_click(event_box, event, pass_along, FALSE);
 186   return TRUE;  /* don't call other (further) callbacks */
 187 }
 188
 189 static gboolean track_vt_click( GtkWidget *event_box, GdkEventButton *event, gpointer *pass_along )
 190 {
 191   track_graph_click(event_box, event, pass_along, TRUE);
 192   return TRUE;  /* don't call other (further) callbacks */
 193 }
 194
 195 void track_profile_move( GtkWidget *image, GdkEventMotion *event, gpointer *pass_along )
 196 {
 197   VikTrack *tr = pass_along[0];
 198   PropWidgets *widgets = pass_along[2];
 199   int mouse_x, mouse_y;
 200   GdkModifierType state;
 201
 202   if (event->is_hint)
 203     gdk_window_get_pointer (event->window, &mouse_x, &mouse_y, &state);
 204   else
 205     mouse_x = event->x;
 206
 207   gdouble x = mouse_x - image->allocation.width / 2 + PROFILE_WIDTH / 2 - MARGIN / 2;
 208   if (x < 0)
 209     x = 0;
 210   if (x > PROFILE_WIDTH)
 211     x = PROFILE_WIDTH;
 212
 213   gdouble meters_from_start;
 214   VikTrackpoint *trackpoint = vik_track_get_closest_tp_by_percentage_dist ( tr, (gdouble) x / PROFILE_WIDTH, &meters_from_start );
 215   if (trackpoint && widgets->w_dist_time) {
 216     static gchar tmp_buf[20];
 217     g_snprintf(tmp_buf, sizeof(tmp_buf), "%.0f m", meters_from_start);
 218     gtk_label_set_text(GTK_LABEL(widgets->w_dist_time), tmp_buf);
 219   }
 220 }
 221
 222 void track_vt_move( GtkWidget *image, GdkEventMotion *event, gpointer *pass_along )
 223 {
 224   VikTrack *tr = pass_along[0];
 225   PropWidgets *widgets = pass_along[2];
 226   int mouse_x, mouse_y;
 227   GdkModifierType state;
 228
 229   if (event->is_hint)
 230     gdk_window_get_pointer (event->window, &mouse_x, &mouse_y, &state);
 231   else
 232     mouse_x = event->x;
 233
 234   gdouble x = mouse_x - image->allocation.width / 2 + PROFILE_WIDTH / 2 - MARGIN / 2;
 235   if (x < 0)
 236     x = 0;
 237   if (x > PROFILE_WIDTH)
 238     x = PROFILE_WIDTH;
 239
 240   time_t seconds_from_start;
 241   VikTrackpoint *trackpoint = vik_track_get_closest_tp_by_percentage_time ( tr, (gdouble) x / PROFILE_WIDTH, &seconds_from_start );
 242   if (trackpoint && widgets->w_dist_time) {
 243     static gchar tmp_buf[20];
 244     guint h, m, s;
 245     h = seconds_from_start/3600;
 246     m = (seconds_from_start - h*3600)/60;
 247     s = seconds_from_start - (3600*h) - (60*m);
 248     g_snprintf(tmp_buf, sizeof(tmp_buf), "%02d:%02d:%02d", h, m, s);
 249
 250     gtk_label_set_text(GTK_LABEL(widgets->w_dist_time), tmp_buf);
 251   }
 252 }
 253
 254 static void draw_dem_alt_speed_dist(VikTrack *tr, GdkDrawable *pix, GdkGC *alt_gc, GdkGC *speed_gc, gdouble alt_offset, gdouble alt_diff, gint width, gint height, gint margin)
 255 {
 256   GList *iter;
 257   gdouble dist = 0;
 258   gdouble max_speed = 0;
 259   gdouble total_length = vik_track_get_length_including_gaps(tr);
 260
 261   for (iter = tr->trackpoints->next; iter; iter = iter->next) {
 262     if (!isnan(VIK_TRACKPOINT(iter->data)->speed))
 263       max_speed = MAX(max_speed, VIK_TRACKPOINT(iter->data)->speed);
 264   }
 265   max_speed = max_speed * 110 / 100;
 266
 267   for (iter = tr->trackpoints->next; iter; iter = iter->next) {
 268     int x, y_alt, y_speed;
 269     gint16 elev = a_dems_get_elev_by_coord(&(VIK_TRACKPOINT(iter->data)->coord), VIK_DEM_INTERPOL_BEST);
 270     elev -= alt_offset;
 271     dist += vik_coord_diff ( &(VIK_TRACKPOINT(iter->data)->coord),
 272       &(VIK_TRACKPOINT(iter->prev->data)->coord) );
 273     x = (width * dist)/total_length + margin;
 274     if ( elev != VIK_DEM_INVALID_ELEVATION ) {
 275       y_alt = height - ((height * elev)/alt_diff);
 276       gdk_draw_rectangle(GDK_DRAWABLE(pix), alt_gc, TRUE, x-2, y_alt-2, 4, 4);
 277     }
 278     if (!isnan(VIK_TRACKPOINT(iter->data)->speed)) {
 279       y_speed = height - (height * VIK_TRACKPOINT(iter->data)->speed)/max_speed;
 280       gdk_draw_rectangle(GDK_DRAWABLE(pix), speed_gc, TRUE, x-2, y_speed-2, 4, 4);
 281     }
 282   }
 283 }
 284
 285 GtkWidget *vik_trw_layer_create_profile ( GtkWidget *window, VikTrack *tr, gpointer vlp, PropWidgets *widgets, gdouble *min_alt, gdouble *max_alt)
 286 {
 287   GdkPixmap *pix;
 288   GtkWidget *image;
 289   gdouble *altitudes = vik_track_make_elevation_map ( tr, PROFILE_WIDTH );
 290   gdouble mina, maxa;
 291   GtkWidget *eventbox;
 292   gpointer *pass_along;
 293   guint i;
 294
 295   if ( altitudes == NULL ) {
 296     *min_alt = *max_alt = VIK_DEFAULT_ALTITUDE;
 297     return NULL;
 298   }
 299
 300   pix = gdk_pixmap_new( window->window, PROFILE_WIDTH + MARGIN, PROFILE_HEIGHT, -1 );
 301   image = gtk_image_new_from_pixmap ( pix, NULL );
 302
 303   GdkGC *no_alt_info = gdk_gc_new ( window->window );
 304   GdkGC *dem_alt_gc = gdk_gc_new ( window->window );
 305   GdkGC *gps_speed_gc = gdk_gc_new ( window->window );
 306   GdkColor color;
 307
 308   gdk_color_parse ( "yellow", &color );
 309   gdk_gc_set_rgb_fg_color ( no_alt_info, &color);
 310   gdk_color_parse ( "green", &color );
 311   gdk_gc_set_rgb_fg_color ( dem_alt_gc, &color);
 312   gdk_color_parse ( "red", &color );
 313   gdk_gc_set_rgb_fg_color ( gps_speed_gc, &color);
 314
 315
 316   minmax_alt(altitudes, min_alt, max_alt);
 317   mina = *min_alt;
 318   maxa = *max_alt + ((*max_alt - *min_alt) * 0.25);
 319
 320   /* clear the image */
 321   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->bg_gc[0],
 322                      TRUE, 0, 0, MARGIN, PROFILE_HEIGHT);
 323   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->mid_gc[0],
 324                      TRUE, MARGIN, 0, PROFILE_WIDTH, PROFILE_HEIGHT);
 325
 326   /* draw grid */
 327 #define LABEL_FONT "Sans 8"
 328   for (i=0; i<=LINES; i++) {
 329     PangoFontDescription *pfd;
 330     PangoLayout *pl = gtk_widget_create_pango_layout (GTK_WIDGET(image), NULL);
 331     gchar s[32];
 332
 333     pfd = pango_font_description_from_string (LABEL_FONT);
 334     pango_layout_set_font_description (pl, pfd);
 335     pango_font_description_free (pfd);
 336     sprintf(s, "%8dm", (int)(mina + (LINES-i)*(maxa-mina)/LINES));
 337     pango_layout_set_text(pl, s, -1);
 338     gdk_draw_layout(GDK_DRAWABLE(pix), window->style->fg_gc[0], 0,
 339                     CLAMP((int)i*PROFILE_HEIGHT/LINES - 5, 0, PROFILE_HEIGHT-15), pl);
 340
 341     gdk_draw_line (GDK_DRAWABLE(pix), window->style->dark_gc[0],
 342                    MARGIN, PROFILE_HEIGHT/LINES * i, MARGIN + PROFILE_WIDTH, PROFILE_HEIGHT/LINES * i);
 343   }
 344
 345   /* draw elevations */
 346   for ( i = 0; i < PROFILE_WIDTH; i++ )
 347     if ( altitudes[i] == VIK_DEFAULT_ALTITUDE )
 348       gdk_draw_line ( GDK_DRAWABLE(pix), no_alt_info,
 349                       i + MARGIN, 0, i + MARGIN, PROFILE_HEIGHT );
 350     else
 351       gdk_draw_line ( GDK_DRAWABLE(pix), window->style->dark_gc[3],
 352                       i + MARGIN, PROFILE_HEIGHT, i + MARGIN, PROFILE_HEIGHT-PROFILE_HEIGHT*(altitudes[i]-mina)/(maxa-mina) );
 353
 354   draw_dem_alt_speed_dist(tr, GDK_DRAWABLE(pix), dem_alt_gc, gps_speed_gc, mina, maxa - mina, PROFILE_WIDTH, PROFILE_HEIGHT, MARGIN);
 355
 356   /* draw border */
 357   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->black_gc, FALSE, MARGIN, 0, PROFILE_WIDTH-1, PROFILE_HEIGHT-1);
 358
 359
 360
 361   g_object_unref ( G_OBJECT(pix) );
 362   g_free ( altitudes );
 363   g_object_unref ( G_OBJECT(no_alt_info) );
 364   g_object_unref ( G_OBJECT(dem_alt_gc) );
 365   g_object_unref ( G_OBJECT(gps_speed_gc) );
 366
 367   pass_along = g_malloc ( sizeof(gpointer) * 3 ); /* FIXME: mem leak -- never be freed */
 368   pass_along[0] = tr;
 369   pass_along[1] = vlp;
 370   pass_along[2] = widgets;
 371
 372   eventbox = gtk_event_box_new ();
 373   g_signal_connect ( G_OBJECT(eventbox), "button_press_event", G_CALLBACK(track_profile_click), pass_along );
 374   g_signal_connect ( G_OBJECT(eventbox), "motion_notify_event", G_CALLBACK(track_profile_move), pass_along );
 375   g_signal_connect_swapped ( G_OBJECT(eventbox), "destroy", G_CALLBACK(g_free), pass_along );
 376   gtk_container_add ( GTK_CONTAINER(eventbox), image );
 377   gtk_widget_set_events (eventbox, GDK_BUTTON_PRESS_MASK
 378                          | GDK_POINTER_MOTION_MASK
 379                          | GDK_POINTER_MOTION_HINT_MASK);
 380
 381   return eventbox;
 382 }
 383
 384 #define METRIC 1
 385 #ifdef METRIC
 386 #define MTOK(v) ( (v)*3.6) /* m/s to km/h */
 387 #else
 388 #define MTOK(v) ( (v)*3600.0/1000.0 * 0.6214) /* m/s to mph - we'll handle this globally eventually but for now ...*/
 389 #endif
 390
 391 GtkWidget *vik_trw_layer_create_vtdiag ( GtkWidget *window, VikTrack *tr, gpointer vlp, PropWidgets *widgets)
 392 {
 393   GdkPixmap *pix;
 394   GtkWidget *image;
 395   gdouble mins, maxs;
 396   guint i;
 397   GtkWidget *eventbox;
 398   gpointer *pass_along;
 399
 400   pass_along = g_malloc ( sizeof(gpointer) * 3 ); /* FIXME: mem leak -- never be freed */
 401   pass_along[0] = tr;
 402   pass_along[1] = vlp;
 403   pass_along[2] = widgets;
 404
 405   gdouble *speeds = vik_track_make_speed_map ( tr, PROFILE_WIDTH );
 406   if ( speeds == NULL )
 407     return NULL;
 408
 409   pix = gdk_pixmap_new( window->window, PROFILE_WIDTH + MARGIN, PROFILE_HEIGHT, -1 );
 410   image = gtk_image_new_from_pixmap ( pix, NULL );
 411
 412   for (i=0; i<PROFILE_WIDTH; i++) {
 413     speeds[i] = MTOK(speeds[i]);
 414   }
 415
 416   minmax_alt(speeds, &mins, &maxs);
 417   if (mins < 0.0)
 418     mins = 0; /* splines sometimes give negative speeds */
 419   maxs = maxs + ((maxs - mins) * 0.1);
 420   if  (maxs-mins < MIN_SPEED_DIFF) {
 421     maxs = mins + MIN_SPEED_DIFF;
 422   }
 423
 424   /* clear the image */
 425   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->bg_gc[0],
 426                      TRUE, 0, 0, MARGIN, PROFILE_HEIGHT);
 427   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->mid_gc[0],
 428                      TRUE, MARGIN, 0, PROFILE_WIDTH, PROFILE_HEIGHT);
 429
 430 #if 0
 431   /* XXX this can go out, it's just a helpful dev tool */
 432   {
 433     int j;
 434     GdkGC **colors[8] = { window->style->bg_gc, window->style->fg_gc,
 435                          window->style->light_gc,
 436                          window->style->dark_gc, window->style->mid_gc,
 437                          window->style->text_gc, window->style->base_gc,
 438                          window->style->text_aa_gc };
 439     for (i=0; i<5; i++) {
 440       for (j=0; j<8; j++) {
 441         gdk_draw_rectangle(GDK_DRAWABLE(pix), colors[j][i],
 442                            TRUE, i*20, j*20, 20, 20);
 443         gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->black_gc,
 444                            FALSE, i*20, j*20, 20, 20);
 445       }
 446     }
 447   }
 448 #else
 449
 450   /* draw grid */
 451 #define LABEL_FONT "Sans 8"
 452   for (i=0; i<=LINES; i++) {
 453     PangoFontDescription *pfd;
 454     PangoLayout *pl = gtk_widget_create_pango_layout (GTK_WIDGET(image), NULL);
 455     gchar s[32];
 456
 457     pfd = pango_font_description_from_string (LABEL_FONT);
 458     pango_layout_set_font_description (pl, pfd);
 459     pango_font_description_free (pfd);
 460 #ifdef METRIC
 461     sprintf(s, "%5dkm/h", (int)(mins + (LINES-i)*(maxs-mins)/LINES));
 462 #else
 463     sprintf(s, "%8dmph", (int)(mins + (LINES-i)*(maxs-mins)/LINES));
 464 #endif
 465     pango_layout_set_text(pl, s, -1);
 466     gdk_draw_layout(GDK_DRAWABLE(pix), window->style->fg_gc[0], 0,
 467                     CLAMP((int)i*PROFILE_HEIGHT/LINES - 5, 0, PROFILE_HEIGHT-15), pl);
 468
 469     gdk_draw_line (GDK_DRAWABLE(pix), window->style->dark_gc[0],
 470                    MARGIN, PROFILE_HEIGHT/LINES * i, MARGIN + PROFILE_WIDTH, PROFILE_HEIGHT/LINES * i);
 471   }
 472
 473   /* draw speeds */
 474   for ( i = 0; i < PROFILE_WIDTH; i++ )
 475       gdk_draw_line ( GDK_DRAWABLE(pix), window->style->dark_gc[3],
 476                       i + MARGIN, PROFILE_HEIGHT, i + MARGIN, PROFILE_HEIGHT-PROFILE_HEIGHT*(speeds[i]-mins)/(maxs-mins) );
 477 #endif
 478
 479
 480   GdkGC *gps_speed_gc = gdk_gc_new ( window->window );
 481   GdkColor color;
 482
 483   gdk_color_parse ( "red", &color );
 484   gdk_gc_set_rgb_fg_color ( gps_speed_gc, &color);
 485
 486   time_t beg_time = VIK_TRACKPOINT(tr->trackpoints->data)->timestamp;
 487   time_t dur =  VIK_TRACKPOINT(g_list_last(tr->trackpoints)->data)->timestamp - beg_time;
 488   GList *iter;
 489   for (iter = tr->trackpoints; iter; iter = iter->next) {
 490     gdouble gps_speed = VIK_TRACKPOINT(iter->data)->speed;
 491     if (isnan(gps_speed))
 492         continue;
 493     int x = MARGIN + PROFILE_WIDTH * (VIK_TRACKPOINT(iter->data)->timestamp - beg_time) / dur;
 494     int y = PROFILE_HEIGHT - PROFILE_HEIGHT*(MTOK(gps_speed) - mins)/(maxs - mins);
 495     gdk_draw_rectangle(GDK_DRAWABLE(pix), gps_speed_gc, TRUE, x-2, y-2, 4, 4);
 496   }
 497
 498   /* draw border */
 499   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->black_gc, FALSE, MARGIN, 0, PROFILE_WIDTH-1, PROFILE_HEIGHT-1);
 500
 501   g_object_unref ( G_OBJECT(pix) );
 502   g_object_unref ( G_OBJECT(gps_speed_gc) );
 503   g_free ( speeds );
 504
 505   eventbox = gtk_event_box_new ();
 506   g_signal_connect ( G_OBJECT(eventbox), "button_press_event", G_CALLBACK(track_vt_click), pass_along );
 507   g_signal_connect ( G_OBJECT(eventbox), "motion_notify_event", G_CALLBACK(track_vt_move), pass_along );
 508   g_signal_connect_swapped ( G_OBJECT(eventbox), "destroy", G_CALLBACK(g_free), pass_along );
 509   gtk_container_add ( GTK_CONTAINER(eventbox), image );
 510   gtk_widget_set_events (eventbox, GDK_BUTTON_PRESS_MASK
 511                          | GDK_POINTER_MOTION_MASK
 512                          | GDK_POINTER_MOTION_HINT_MASK);
 513
 514   return eventbox;
 515 }
 516 #undef MARGIN
 517 #undef LINES
 518
 519 static void propwin_response_cb( GtkDialog *dialog, gint resp, PropWidgets *widgets)
 520 {
 521   VikTrack *tr = widgets->tr;
 522   VikTrwLayer *vtl = widgets->vtl;
 523
 524   /* FIXME: check and make sure the track still exists before doing anything to it */
 525   /* Note: destroying diaglog (eg, parent window exit) won't give "response" */
 526   switch (resp) {
 527     case GTK_RESPONSE_DELETE_EVENT: /* received delete event (not from buttons) */
 528     case GTK_RESPONSE_REJECT:
 529       break;
 530     case GTK_RESPONSE_ACCEPT:
 531       vik_track_set_comment(tr, gtk_entry_get_text(GTK_ENTRY(widgets->w_comment)));
 532       break;
 533     case VIK_TRW_LAYER_PROPWIN_REVERSE:
 534       vik_track_reverse(tr);
 535       vik_layer_emit_update ( VIK_LAYER(vtl) );
 536       break;
 537     case VIK_TRW_LAYER_PROPWIN_DEL_DUP:
 538       vik_track_remove_dup_points(tr);
 539       /* above operation could have deleted current_tp or last_tp */
 540       trw_layer_cancel_tps_of_track ( vtl, widgets->track_name );
 541       vik_layer_emit_update ( VIK_LAYER(vtl) );
 542       break;
 543     case VIK_TRW_LAYER_PROPWIN_SPLIT:
 544       {
 545         /* get new tracks, add them, resolve naming conflicts (free if cancel), and delete old. old can still exist on clipboard. */
 546         guint ntracks;
 547         VikTrack **tracks = vik_track_split_into_segments(tr, &ntracks);
 548         gchar *new_tr_name;
 549         guint i;
 550         for ( i = 0; i < ntracks; i++ )
 551         {
 552           g_assert ( tracks[i] );
 553           new_tr_name = g_strdup_printf("%s #%d", widgets->track_name, i+1);
 554           /* if ( (wp_exists) && (! overwrite) ) */
 555           /* don't need to upper case new_tr_name because old tr name was uppercase */
 556           if ( vik_trw_layer_get_track(vtl, new_tr_name ) &&
 557              ( ! a_dialog_overwrite ( VIK_GTK_WINDOW_FROM_LAYER(vtl), "The track \"%s\" exists, do you wish to overwrite it?", new_tr_name ) ) )
 558           {
 559             gchar *new_new_tr_name = a_dialog_new_track ( VIK_GTK_WINDOW_FROM_LAYER(vtl), vik_trw_layer_get_tracks(vtl) );
 560             g_free ( new_tr_name );
 561             if (new_new_tr_name)
 562               new_tr_name = new_new_tr_name;
 563             else
 564             {
 565               new_tr_name = NULL;
 566               vik_track_free ( tracks[i] );
 567             }
 568           }
 569           if ( new_tr_name )
 570             vik_trw_layer_add_track ( vtl, new_tr_name, tracks[i] );
 571         }
 572         if ( tracks )
 573         {
 574           g_free ( tracks );
 575           /* Don't let track destroy this dialog */
 576           vik_track_clear_property_dialog(tr);
 577           vik_trw_layer_delete_track ( vtl, widgets->track_name );
 578           vik_layer_emit_update ( VIK_LAYER(vtl) ); /* chase thru the hoops */
 579         }
 580       }
 581       break;
 582     default:
 583       fprintf(stderr, "DEBUG: unknown response\n");
 584       return;
 585   }
 586
 587   /* Keep same behaviour for now: destroy dialog if click on any button */
 588   prop_widgets_free(widgets);
 589   vik_track_clear_property_dialog(tr);
 590   gtk_widget_destroy ( GTK_WIDGET(dialog) );
 591 }
 592
 593 void vik_trw_layer_propwin_run ( GtkWindow *parent, VikTrwLayer *vtl, VikTrack *tr, gpointer vlp, gchar *track_name )
 594 {
 595   /* FIXME: free widgets when destroy signal received */
 596   PropWidgets *widgets = prop_widgets_new();
 597   widgets->vtl = vtl;
 598   widgets->tr = tr;
 599   widgets->vlp = vlp;
 600   widgets->track_name = track_name;
 601   gchar *title = g_strdup_printf(_("%s - Track Properties"), track_name);
 602   GtkWidget *dialog = gtk_dialog_new_with_buttons (title,
 603                          parent,
 604                          GTK_DIALOG_DESTROY_WITH_PARENT | GTK_DIALOG_NO_SEPARATOR,
 605                          GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
 606                          _("Split Segments"), VIK_TRW_LAYER_PROPWIN_SPLIT,
 607                          _("Reverse"),        VIK_TRW_LAYER_PROPWIN_REVERSE,
 608                          _("Delete Dupl."),   VIK_TRW_LAYER_PROPWIN_DEL_DUP,
 609                          GTK_STOCK_OK,     GTK_RESPONSE_ACCEPT,
 610                          NULL);
 611   g_free(title);
 612   g_signal_connect(dialog, "response", G_CALLBACK(propwin_response_cb), widgets);
 613   //fprintf(stderr, "DEBUG: dialog=0x%p\n", dialog);
 614   GtkTable *table;
 615   gdouble tr_len;
 616   guint32 tp_count, seg_count;
 617
 618   gdouble min_alt, max_alt;
 619   GtkWidget *profile = vik_trw_layer_create_profile(GTK_WIDGET(parent),tr, vlp, widgets, &min_alt,&max_alt);
 620   GtkWidget *vtdiag = vik_trw_layer_create_vtdiag(GTK_WIDGET(parent), tr, vlp, widgets);
 621   GtkWidget *graphs = gtk_notebook_new();
 622
 623   GtkWidget *content[20];
 624   int cnt;
 625   int i;
 626
 627   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>"), N_("<b>Track Distance/Time:</b>") };
 628   static gchar tmp_buf[50];
 629   gdouble tmp_speed;
 630
 631   cnt = 0;
 632   widgets->w_comment = gtk_entry_new ();
 633   if ( tr->comment )
 634     gtk_entry_set_text ( GTK_ENTRY(widgets->w_comment), tr->comment );
 635   g_signal_connect_swapped ( widgets->w_comment, "activate", G_CALLBACK(a_dialog_response_accept), GTK_DIALOG(dialog) );
 636   content[cnt++] = widgets->w_comment;
 637
 638   tr_len = vik_track_get_length(tr);
 639   g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f m", tr_len );
 640   widgets->w_track_length = content[cnt++] = gtk_label_new ( tmp_buf );
 641
 642   tp_count = vik_track_get_tp_count(tr);
 643   g_snprintf(tmp_buf, sizeof(tmp_buf), "%u", tp_count );
 644   widgets->w_tp_count = content[cnt++] = gtk_label_new ( tmp_buf );
 645
 646   seg_count = vik_track_get_segment_count(tr) ;
 647   g_snprintf(tmp_buf, sizeof(tmp_buf), "%u", seg_count );
 648   widgets->w_segment_count = content[cnt++] = gtk_label_new ( tmp_buf );
 649
 650   g_snprintf(tmp_buf, sizeof(tmp_buf), "%lu", vik_track_get_dup_point_count(tr) );
 651   widgets->w_duptp_count = content[cnt++] = gtk_label_new ( tmp_buf );
 652
 653   tmp_speed = vik_track_get_max_speed(tr);
 654   if ( tmp_speed == 0 )
 655     g_snprintf(tmp_buf, sizeof(tmp_buf), _("No Data"));
 656   else
 657     g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f m/s   (%.0f km/h)", tmp_speed, MTOK(tmp_speed) );
 658   widgets->w_max_speed = content[cnt++] = gtk_label_new ( tmp_buf );
 659
 660   tmp_speed = vik_track_get_average_speed(tr);
 661   if ( tmp_speed == 0 )
 662     g_snprintf(tmp_buf, sizeof(tmp_buf), _("No Data"));
 663   else
 664     g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f m/s   (%.0f km/h)", tmp_speed, MTOK(tmp_speed) );
 665   widgets->w_avg_speed = content[cnt++] = gtk_label_new ( tmp_buf );
 666
 667   g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f m", (tp_count - seg_count) == 0 ? 0 : tr_len / ( tp_count - seg_count ) );
 668   widgets->w_avg_dist = content[cnt++] = gtk_label_new ( tmp_buf );
 669
 670   if ( min_alt == VIK_DEFAULT_ALTITUDE )
 671     g_snprintf(tmp_buf, sizeof(tmp_buf), _("No Data"));
 672   else
 673     g_snprintf(tmp_buf, sizeof(tmp_buf), "%.0f m - %.0f m", min_alt, max_alt );
 674   widgets->w_elev_range = content[cnt++] = gtk_label_new ( tmp_buf );
 675
 676   vik_track_get_total_elevation_gain(tr, &max_alt, &min_alt );
 677   if ( min_alt == VIK_DEFAULT_ALTITUDE )
 678     g_snprintf(tmp_buf, sizeof(tmp_buf), _("No Data"));
 679   else
 680     g_snprintf(tmp_buf, sizeof(tmp_buf), "%.0f m / %.0f m", max_alt, min_alt );
 681   widgets->w_elev_gain = content[cnt++] = gtk_label_new ( tmp_buf );
 682
 683 #if 0
 684 #define PACK(w) gtk_box_pack_start (GTK_BOX(right_vbox), w, FALSE, FALSE, 0);
 685   gtk_box_pack_start (GTK_BOX(right_vbox), e_cmt, FALSE, FALSE, 0);
 686   PACK(l_len);
 687   PACK(l_tps);
 688   PACK(l_segs);
 689   PACK(l_dups);
 690   PACK(l_maxs);
 691   PACK(l_avgs);
 692   PACK(l_avgd);
 693   PACK(l_elev);
 694   PACK(l_galo);
 695 #undef PACK;
 696 #endif
 697
 698   if ( tr->trackpoints && VIK_TRACKPOINT(tr->trackpoints->data)->timestamp )
 699   {
 700     time_t t1, t2;
 701     t1 = VIK_TRACKPOINT(tr->trackpoints->data)->timestamp;
 702     t2 = VIK_TRACKPOINT(g_list_last(tr->trackpoints)->data)->timestamp;
 703
 704     strncpy(tmp_buf, ctime(&t1), sizeof(tmp_buf));
 705     tmp_buf[sizeof(tmp_buf)-1] = 0;
 706     g_strchomp(tmp_buf);
 707     widgets->w_time_start = content[cnt++] = gtk_label_new(tmp_buf);
 708
 709     strncpy(tmp_buf, ctime(&t2), sizeof(tmp_buf));
 710     tmp_buf[sizeof(tmp_buf)-1] = 0;
 711     g_strchomp(tmp_buf);
 712     widgets->w_time_end = content[cnt++] = gtk_label_new(tmp_buf);
 713
 714     g_snprintf(tmp_buf, sizeof(tmp_buf), _("%d minutes"), (int)(t2-t1)/60);
 715     widgets->w_time_dur = content[cnt++] = gtk_label_new(tmp_buf);
 716   } else {
 717     widgets->w_time_start = content[cnt++] = gtk_label_new(_("No Data"));
 718     widgets->w_time_end = content[cnt++] = gtk_label_new(_("No Data"));
 719     widgets->w_time_dur = content[cnt++] = gtk_label_new(_("No Data"));
 720   }
 721   widgets->w_dist_time = content[cnt++] = gtk_label_new(_("No Data"));
 722
 723   table = GTK_TABLE(gtk_table_new (cnt, 2, FALSE));
 724   gtk_table_set_col_spacing (table, 0, 10);
 725   for (i=0; i<cnt; i++) {
 726     GtkWidget *label;
 727
 728     label = gtk_label_new(NULL);
 729     gtk_misc_set_alignment ( GTK_MISC(label), 1, 0 );
 730     gtk_label_set_markup ( GTK_LABEL(label), _(label_texts[i]) );
 731     gtk_table_attach_defaults ( table, label, 0, 1, i, i+1 );
 732     if (GTK_IS_MISC(content[i])) {
 733       gtk_misc_set_alignment ( GTK_MISC(content[i]), 0, 0 );
 734     }
 735     gtk_table_attach_defaults ( table, content[i], 1, 2, i, i+1 );
 736   }
 737
 738   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), GTK_WIDGET(table), FALSE, FALSE, 0);
 739
 740   if ( profile )
 741     gtk_notebook_append_page(GTK_NOTEBOOK(graphs), profile, gtk_label_new(_("Elevation-distance")));
 742
 743   if ( vtdiag )
 744     gtk_notebook_append_page(GTK_NOTEBOOK(graphs), vtdiag, gtk_label_new(_("Speed-time")));
 745
 746   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), graphs, FALSE, FALSE, 0);
 747
 748   if (seg_count <= 1)
 749     gtk_dialog_set_response_sensitive(GTK_DIALOG(dialog), VIK_TRW_LAYER_PROPWIN_SPLIT, FALSE);
 750   if (vik_track_get_dup_point_count(tr) <= 0)
 751     gtk_dialog_set_response_sensitive(GTK_DIALOG(dialog), VIK_TRW_LAYER_PROPWIN_DEL_DUP, FALSE);
 752
 753   vik_track_set_property_dialog(tr, dialog);
 754   gtk_widget_show_all ( dialog );
 755 }