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 #ifdef HAVE_MATH_H
  27 #include <math.h>
  28 #endif
  29
  30 #include <gtk/gtk.h>
  31 #include <glib/gi18n.h>
  32 #include <time.h>
  33 #ifdef HAVE_STRING_H
  34 #include <string.h>
  35 #endif
  36 #include "coords.h"
  37 #include "vikcoord.h"
  38 #include "viktrack.h"
  39 #include "viktrwlayer.h"
  40 #include "viktrwlayer_propwin.h"
  41 #include "vikwaypoint.h"
  42 #include "dialog.h"
  43 #include "globals.h"
  44 #include "dems.h"
  45
  46 #include "vikviewport.h" /* ugh */
  47 #include "viktreeview.h" /* ugh */
  48 #include <gdk-pixbuf/gdk-pixdata.h>
  49 #include "viklayer.h" /* ugh */
  50 #include "vikaggregatelayer.h"
  51 #include "viklayerspanel.h" /* ugh */
  52
  53 #define PROFILE_WIDTH 600
  54 #define PROFILE_HEIGHT 300
  55 #define MIN_ALT_DIFF 100.0
  56 #define MIN_SPEED_DIFF 20.0
  57
  58 typedef struct _propsaved {
  59   gboolean saved;
  60   gint pos;
  61   GdkImage *img;
  62 } PropSaved;
  63
  64 typedef struct _propwidgets {
  65   VikTrwLayer *vtl;
  66   VikTrack *tr;
  67   VikLayersPanel *vlp;
  68   gchar *track_name;
  69   GtkWidget *dialog;
  70   GtkWidget *w_comment;
  71   GtkWidget *w_track_length;
  72   GtkWidget *w_tp_count;
  73   GtkWidget *w_segment_count;
  74   GtkWidget *w_duptp_count;
  75   GtkWidget *w_max_speed;
  76   GtkWidget *w_avg_speed;
  77   GtkWidget *w_avg_dist;
  78   GtkWidget *w_elev_range;
  79   GtkWidget *w_elev_gain;
  80   GtkWidget *w_time_start;
  81   GtkWidget *w_time_end;
  82   GtkWidget *w_time_dur;
  83   GtkWidget *w_cur_dist; /*< Current distance */
  84   GtkWidget *w_cur_time; /*< Current time */
  85   gdouble   track_length;
  86   PropSaved elev_graph_saved_img;
  87   PropSaved speed_graph_saved_img;
  88   GtkWidget *elev_box;
  89   GtkWidget *speed_box;
  90   VikTrackpoint *marker_tp;
  91 } PropWidgets;
  92
  93 static PropWidgets *prop_widgets_new()
  94 {
  95   PropWidgets *widgets = g_malloc0(sizeof(PropWidgets));
  96
  97   return widgets;
  98 }
  99
 100 static void prop_widgets_free(PropWidgets *widgets)
 101 {
 102
 103   if (widgets->elev_graph_saved_img.img)
 104     g_object_unref(widgets->elev_graph_saved_img.img);
 105   if (widgets->speed_graph_saved_img.img)
 106     g_object_unref(widgets->speed_graph_saved_img.img);
 107   g_free(widgets);
 108 }
 109
 110 static void minmax_alt(const gdouble *altitudes, gdouble *min, gdouble *max)
 111 {
 112   *max = -1000;
 113   *min = 20000;
 114   guint i;
 115   for ( i=0; i < PROFILE_WIDTH; i++ ) {
 116     if ( altitudes[i] != VIK_DEFAULT_ALTITUDE ) {
 117       if ( altitudes[i] > *max )
 118         *max = altitudes[i];
 119       if ( altitudes[i] < *min )
 120         *min = altitudes[i];
 121     }
 122   }
 123 }
 124
 125 #define MARGIN 70
 126 #define LINES 5
 127 static VikTrackpoint *set_center_at_graph_position(gdouble event_x, gint img_width, VikLayersPanel *vlp, VikTrack *tr, gboolean time_base)
 128 {
 129   VikTrackpoint *trackpoint;
 130   gdouble x = event_x - img_width / 2 + PROFILE_WIDTH / 2 - MARGIN / 2;
 131   if (x < 0)
 132     x = 0;
 133   if (x > PROFILE_WIDTH)
 134     x = PROFILE_WIDTH;
 135
 136   if (time_base)
 137     trackpoint = vik_track_get_closest_tp_by_percentage_time ( tr, (gdouble) x / PROFILE_WIDTH, NULL );
 138   else
 139     trackpoint = vik_track_get_closest_tp_by_percentage_dist ( tr, (gdouble) x / PROFILE_WIDTH, NULL );
 140
 141   if ( trackpoint ) {
 142     VikCoord coord = trackpoint->coord;
 143     vik_viewport_set_center_coord ( vik_layers_panel_get_viewport(vlp), &coord );
 144     vik_layers_panel_emit_update ( vlp );
 145   }
 146   return trackpoint;
 147 }
 148
 149 static void draw_graph_mark(GtkWidget *image, gdouble event_x, gint img_width, GdkGC *gc, PropSaved *saved_img)
 150 {
 151   GdkPixmap *pix;
 152   const int saved_width = 5;
 153   /* the pixmap = margin + graph area */
 154   gdouble x = event_x - img_width/2 + PROFILE_WIDTH/2 + MARGIN/2;
 155
 156   // fprintf(stderr, "event_x=%f img_width=%d x=%f\n", event_x, img_width, x);
 157
 158   gtk_image_get_pixmap(GTK_IMAGE(image), &pix, NULL);
 159   if (saved_img->saved) {
 160     gdk_draw_image(GDK_DRAWABLE(pix), gc, saved_img->img, 0, 0,
 161         saved_img->pos, 0, -1, -1);
 162     saved_img->saved = FALSE;
 163     gtk_widget_queue_draw_area(image,
 164         saved_img->pos + img_width/2 - PROFILE_WIDTH/2 - MARGIN/2, 0,
 165         saved_img->img->width, saved_img->img->height);
 166   }
 167   if ((x >= MARGIN) && (x < (PROFILE_WIDTH + MARGIN))) {
 168     if (saved_img->img)
 169       gdk_drawable_copy_to_image(GDK_DRAWABLE(pix), saved_img->img,
 170           x - (saved_width/2), 0, 0, 0, saved_img->img->width, saved_img->img->height);
 171     else
 172       saved_img->img = gdk_drawable_copy_to_image(GDK_DRAWABLE(pix),
 173           saved_img->img, x - (saved_width/2), 0, 0, 0, saved_width, PROFILE_HEIGHT);
 174     saved_img->pos = x - (saved_width/2);
 175     saved_img->saved = TRUE;
 176     gdk_draw_line (GDK_DRAWABLE(pix), gc, x, 0, x, image->allocation.height);
 177     /* redraw the area which contains the line, saved_width is just convenient */
 178     gtk_widget_queue_draw_area(image, event_x - saved_width/2, 0, saved_width, PROFILE_HEIGHT);
 179   }
 180 }
 181
 182 static void track_graph_click( GtkWidget *event_box, GdkEventButton *event, gpointer *pass_along, gboolean is_vt_graph )
 183 {
 184   VikTrack *tr = pass_along[0];
 185   VikLayersPanel *vlp = pass_along[1];
 186   PropWidgets *widgets = pass_along[2];
 187   GList *child = gtk_container_get_children(GTK_CONTAINER(event_box));
 188   GtkWidget *image = GTK_WIDGET(child->data);
 189   GtkWidget *window = gtk_widget_get_toplevel(GTK_WIDGET(event_box));
 190
 191
 192   VikTrackpoint *trackpoint = set_center_at_graph_position(event->x, event_box->allocation.width, vlp, tr, is_vt_graph);
 193   draw_graph_mark(image, event->x, event_box->allocation.width, window->style->black_gc,
 194       is_vt_graph ? &widgets->speed_graph_saved_img : &widgets->elev_graph_saved_img);
 195   g_list_free(child);
 196   widgets->marker_tp = trackpoint;
 197   gtk_dialog_set_response_sensitive(GTK_DIALOG(widgets->dialog), VIK_TRW_LAYER_PROPWIN_SPLIT_MARKER, TRUE);
 198
 199   /* draw on the other graph */
 200   if (trackpoint == NULL || widgets->elev_box == NULL || widgets->speed_box == NULL)
 201     /* This test assumes we have only 2 graphs */
 202     return;
 203
 204   gdouble pc = NAN;
 205   gdouble x2;
 206   GList *other_child = gtk_container_get_children(GTK_CONTAINER(
 207                          is_vt_graph ? widgets->elev_box : widgets->speed_box));
 208   GtkWidget *other_image = GTK_WIDGET(other_child->data);
 209   if (is_vt_graph) {
 210     gdouble dist = 0.0;
 211     GList *iter;
 212     for (iter = tr->trackpoints->next; iter != NULL; iter = iter->next) {
 213       dist += vik_coord_diff(&(VIK_TRACKPOINT(iter->data)->coord),
 214                                  &(VIK_TRACKPOINT(iter->prev->data)->coord));
 215       /* Assuming trackpoint is not a copy */
 216       if (trackpoint == VIK_TRACKPOINT(iter->data))
 217         break;
 218     }
 219     if (iter != NULL)
 220       pc = dist/widgets->track_length;
 221   } else {
 222     time_t t_start, t_end, t_total;
 223     t_start = VIK_TRACKPOINT(tr->trackpoints->data)->timestamp;
 224     t_end = VIK_TRACKPOINT(g_list_last(tr->trackpoints)->data)->timestamp;
 225     t_total = t_end - t_start;
 226     pc = (gdouble)(trackpoint->timestamp - t_start)/t_total;
 227   }
 228   if (!isnan(pc)) {
 229     x2 = pc * PROFILE_WIDTH + MARGIN + (event_box->allocation.width/2 - PROFILE_WIDTH/2 - MARGIN/2);
 230     draw_graph_mark(other_image, x2, event_box->allocation.width, window->style->black_gc,
 231       is_vt_graph ? &widgets->elev_graph_saved_img : &widgets->speed_graph_saved_img);
 232   }
 233
 234   g_list_free(other_child);
 235
 236 }
 237
 238 static gboolean track_profile_click( GtkWidget *event_box, GdkEventButton *event, gpointer *pass_along )
 239 {
 240   track_graph_click(event_box, event, pass_along, FALSE);
 241   return TRUE;  /* don't call other (further) callbacks */
 242 }
 243
 244 static gboolean track_vt_click( GtkWidget *event_box, GdkEventButton *event, gpointer *pass_along )
 245 {
 246   track_graph_click(event_box, event, pass_along, TRUE);
 247   return TRUE;  /* don't call other (further) callbacks */
 248 }
 249
 250 void track_profile_move( GtkWidget *image, GdkEventMotion *event, gpointer *pass_along )
 251 {
 252   VikTrack *tr = pass_along[0];
 253   PropWidgets *widgets = pass_along[2];
 254   int mouse_x, mouse_y;
 255   GdkModifierType state;
 256
 257   if (event->is_hint)
 258     gdk_window_get_pointer (event->window, &mouse_x, &mouse_y, &state);
 259   else
 260     mouse_x = event->x;
 261
 262   gdouble x = mouse_x - image->allocation.width / 2 + PROFILE_WIDTH / 2 - MARGIN / 2;
 263   if (x < 0)
 264     x = 0;
 265   if (x > PROFILE_WIDTH)
 266     x = PROFILE_WIDTH;
 267
 268   gdouble meters_from_start;
 269   VikTrackpoint *trackpoint = vik_track_get_closest_tp_by_percentage_dist ( tr, (gdouble) x / PROFILE_WIDTH, &meters_from_start );
 270   if (trackpoint && widgets->w_cur_dist) {
 271     static gchar tmp_buf[20];
 272     g_snprintf(tmp_buf, sizeof(tmp_buf), "%.0f m", meters_from_start);
 273     gtk_label_set_text(GTK_LABEL(widgets->w_cur_dist), tmp_buf);
 274   }
 275 }
 276
 277 void track_vt_move( GtkWidget *image, GdkEventMotion *event, gpointer *pass_along )
 278 {
 279   VikTrack *tr = pass_along[0];
 280   PropWidgets *widgets = pass_along[2];
 281   int mouse_x, mouse_y;
 282   GdkModifierType state;
 283
 284   if (event->is_hint)
 285     gdk_window_get_pointer (event->window, &mouse_x, &mouse_y, &state);
 286   else
 287     mouse_x = event->x;
 288
 289   gdouble x = mouse_x - image->allocation.width / 2 + PROFILE_WIDTH / 2 - MARGIN / 2;
 290   if (x < 0)
 291     x = 0;
 292   if (x > PROFILE_WIDTH)
 293     x = PROFILE_WIDTH;
 294
 295   time_t seconds_from_start;
 296   VikTrackpoint *trackpoint = vik_track_get_closest_tp_by_percentage_time ( tr, (gdouble) x / PROFILE_WIDTH, &seconds_from_start );
 297   if (trackpoint && widgets->w_cur_time) {
 298     static gchar tmp_buf[20];
 299     guint h, m, s;
 300     h = seconds_from_start/3600;
 301     m = (seconds_from_start - h*3600)/60;
 302     s = seconds_from_start - (3600*h) - (60*m);
 303     g_snprintf(tmp_buf, sizeof(tmp_buf), "%02d:%02d:%02d", h, m, s);
 304
 305     gtk_label_set_text(GTK_LABEL(widgets->w_cur_time), tmp_buf);
 306   }
 307 }
 308
 309 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)
 310 {
 311   GList *iter;
 312   gdouble dist = 0;
 313   gdouble max_speed = 0;
 314   gdouble total_length = vik_track_get_length_including_gaps(tr);
 315
 316   for (iter = tr->trackpoints->next; iter; iter = iter->next) {
 317     if (!isnan(VIK_TRACKPOINT(iter->data)->speed))
 318       max_speed = MAX(max_speed, VIK_TRACKPOINT(iter->data)->speed);
 319   }
 320   max_speed = max_speed * 110 / 100;
 321
 322   for (iter = tr->trackpoints->next; iter; iter = iter->next) {
 323     int x, y_alt, y_speed;
 324     gint16 elev = a_dems_get_elev_by_coord(&(VIK_TRACKPOINT(iter->data)->coord), VIK_DEM_INTERPOL_BEST);
 325     elev -= alt_offset;
 326     dist += vik_coord_diff ( &(VIK_TRACKPOINT(iter->data)->coord),
 327       &(VIK_TRACKPOINT(iter->prev->data)->coord) );
 328     x = (width * dist)/total_length + margin;
 329     if ( elev != VIK_DEM_INVALID_ELEVATION ) {
 330       y_alt = height - ((height * elev)/alt_diff);
 331       gdk_draw_rectangle(GDK_DRAWABLE(pix), alt_gc, TRUE, x-2, y_alt-2, 4, 4);
 332     }
 333     if (!isnan(VIK_TRACKPOINT(iter->data)->speed)) {
 334       y_speed = height - (height * VIK_TRACKPOINT(iter->data)->speed)/max_speed;
 335       gdk_draw_rectangle(GDK_DRAWABLE(pix), speed_gc, TRUE, x-2, y_speed-2, 4, 4);
 336     }
 337   }
 338 }
 339
 340 GtkWidget *vik_trw_layer_create_profile ( GtkWidget *window, VikTrack *tr, gpointer vlp, PropWidgets *widgets, gdouble *min_alt, gdouble *max_alt)
 341 {
 342   GdkPixmap *pix;
 343   GtkWidget *image;
 344   gdouble *altitudes = vik_track_make_elevation_map ( tr, PROFILE_WIDTH );
 345   gdouble mina, maxa;
 346   GtkWidget *eventbox;
 347   gpointer *pass_along;
 348   guint i;
 349
 350   if ( altitudes == NULL ) {
 351     *min_alt = *max_alt = VIK_DEFAULT_ALTITUDE;
 352     return NULL;
 353   }
 354
 355   pix = gdk_pixmap_new( window->window, PROFILE_WIDTH + MARGIN, PROFILE_HEIGHT, -1 );
 356   image = gtk_image_new_from_pixmap ( pix, NULL );
 357
 358   GdkGC *no_alt_info = gdk_gc_new ( window->window );
 359   GdkGC *dem_alt_gc = gdk_gc_new ( window->window );
 360   GdkGC *gps_speed_gc = gdk_gc_new ( window->window );
 361   GdkColor color;
 362
 363   gdk_color_parse ( "yellow", &color );
 364   gdk_gc_set_rgb_fg_color ( no_alt_info, &color);
 365   gdk_color_parse ( "green", &color );
 366   gdk_gc_set_rgb_fg_color ( dem_alt_gc, &color);
 367   gdk_color_parse ( "red", &color );
 368   gdk_gc_set_rgb_fg_color ( gps_speed_gc, &color);
 369
 370
 371   minmax_alt(altitudes, min_alt, max_alt);
 372   mina = *min_alt;
 373   maxa = *max_alt + ((*max_alt - *min_alt) * 0.25);
 374
 375   /* clear the image */
 376   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->bg_gc[0],
 377                      TRUE, 0, 0, MARGIN, PROFILE_HEIGHT);
 378   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->mid_gc[0],
 379                      TRUE, MARGIN, 0, PROFILE_WIDTH, PROFILE_HEIGHT);
 380
 381   /* draw grid */
 382 #define LABEL_FONT "Sans 7"
 383   for (i=0; i<=LINES; i++) {
 384     PangoFontDescription *pfd;
 385     PangoLayout *pl = gtk_widget_create_pango_layout (GTK_WIDGET(image), NULL);
 386     gchar s[32];
 387     int w, h;
 388
 389     pango_layout_set_alignment (pl, PANGO_ALIGN_RIGHT);
 390     pfd = pango_font_description_from_string (LABEL_FONT);
 391     pango_layout_set_font_description (pl, pfd);
 392     pango_font_description_free (pfd);
 393     sprintf(s, "%8dm", (int)(mina + (LINES-i)*(maxa-mina)/LINES));
 394     pango_layout_set_text(pl, s, -1);
 395     pango_layout_get_pixel_size (pl, &w, &h);
 396     gdk_draw_layout(GDK_DRAWABLE(pix), window->style->fg_gc[0], MARGIN-w-3,
 397                     CLAMP((int)i*PROFILE_HEIGHT/LINES - h/2, 0, PROFILE_HEIGHT-h), pl);
 398
 399     gdk_draw_line (GDK_DRAWABLE(pix), window->style->dark_gc[0],
 400                    MARGIN, PROFILE_HEIGHT/LINES * i, MARGIN + PROFILE_WIDTH, PROFILE_HEIGHT/LINES * i);
 401     g_object_unref ( G_OBJECT ( pl ) );
 402     pl = NULL;
 403   }
 404
 405   /* draw elevations */
 406   for ( i = 0; i < PROFILE_WIDTH; i++ )
 407     if ( altitudes[i] == VIK_DEFAULT_ALTITUDE )
 408       gdk_draw_line ( GDK_DRAWABLE(pix), no_alt_info,
 409                       i + MARGIN, 0, i + MARGIN, PROFILE_HEIGHT );
 410     else
 411       gdk_draw_line ( GDK_DRAWABLE(pix), window->style->dark_gc[3],
 412                       i + MARGIN, PROFILE_HEIGHT, i + MARGIN, PROFILE_HEIGHT-PROFILE_HEIGHT*(altitudes[i]-mina)/(maxa-mina) );
 413
 414   draw_dem_alt_speed_dist(tr, GDK_DRAWABLE(pix), dem_alt_gc, gps_speed_gc, mina, maxa - mina, PROFILE_WIDTH, PROFILE_HEIGHT, MARGIN);
 415
 416   /* draw border */
 417   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->black_gc, FALSE, MARGIN, 0, PROFILE_WIDTH-1, PROFILE_HEIGHT-1);
 418
 419
 420
 421   g_object_unref ( G_OBJECT(pix) );
 422   g_free ( altitudes );
 423   g_object_unref ( G_OBJECT(no_alt_info) );
 424   g_object_unref ( G_OBJECT(dem_alt_gc) );
 425   g_object_unref ( G_OBJECT(gps_speed_gc) );
 426
 427   pass_along = g_malloc ( sizeof(gpointer) * 3 ); /* FIXME: mem leak -- never be freed */
 428   pass_along[0] = tr;
 429   pass_along[1] = vlp;
 430   pass_along[2] = widgets;
 431
 432   eventbox = gtk_event_box_new ();
 433   g_signal_connect ( G_OBJECT(eventbox), "button_press_event", G_CALLBACK(track_profile_click), pass_along );
 434   g_signal_connect ( G_OBJECT(eventbox), "motion_notify_event", G_CALLBACK(track_profile_move), pass_along );
 435   g_signal_connect_swapped ( G_OBJECT(eventbox), "destroy", G_CALLBACK(g_free), pass_along );
 436   gtk_container_add ( GTK_CONTAINER(eventbox), image );
 437   gtk_widget_set_events (eventbox, GDK_BUTTON_PRESS_MASK
 438                          | GDK_POINTER_MOTION_MASK
 439                          | GDK_POINTER_MOTION_HINT_MASK);
 440
 441   return eventbox;
 442 }
 443
 444 #define METRIC 1
 445 #ifdef METRIC
 446 #define MTOK(v) ( (v)*3.6) /* m/s to km/h */
 447 #else
 448 #define MTOK(v) ( (v)*3600.0/1000.0 * 0.6214) /* m/s to mph - we'll handle this globally eventually but for now ...*/
 449 #endif
 450
 451 GtkWidget *vik_trw_layer_create_vtdiag ( GtkWidget *window, VikTrack *tr, gpointer vlp, PropWidgets *widgets)
 452 {
 453   GdkPixmap *pix;
 454   GtkWidget *image;
 455   gdouble mins, maxs;
 456   guint i;
 457   GtkWidget *eventbox;
 458   gpointer *pass_along;
 459
 460   pass_along = g_malloc ( sizeof(gpointer) * 3 ); /* FIXME: mem leak -- never be freed */
 461   pass_along[0] = tr;
 462   pass_along[1] = vlp;
 463   pass_along[2] = widgets;
 464
 465   gdouble *speeds = vik_track_make_speed_map ( tr, PROFILE_WIDTH );
 466   if ( speeds == NULL )
 467     return NULL;
 468
 469   pix = gdk_pixmap_new( window->window, PROFILE_WIDTH + MARGIN, PROFILE_HEIGHT, -1 );
 470   image = gtk_image_new_from_pixmap ( pix, NULL );
 471
 472   for (i=0; i<PROFILE_WIDTH; i++) {
 473     speeds[i] = MTOK(speeds[i]);
 474   }
 475
 476   minmax_alt(speeds, &mins, &maxs);
 477   if (mins < 0.0)
 478     mins = 0; /* splines sometimes give negative speeds */
 479   maxs = maxs + ((maxs - mins) * 0.1);
 480   if  (maxs-mins < MIN_SPEED_DIFF) {
 481     maxs = mins + MIN_SPEED_DIFF;
 482   }
 483
 484   /* clear the image */
 485   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->bg_gc[0],
 486                      TRUE, 0, 0, MARGIN, PROFILE_HEIGHT);
 487   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->mid_gc[0],
 488                      TRUE, MARGIN, 0, PROFILE_WIDTH, PROFILE_HEIGHT);
 489
 490 #if 0
 491   /* XXX this can go out, it's just a helpful dev tool */
 492   {
 493     int j;
 494     GdkGC **colors[8] = { window->style->bg_gc, window->style->fg_gc,
 495                          window->style->light_gc,
 496                          window->style->dark_gc, window->style->mid_gc,
 497                          window->style->text_gc, window->style->base_gc,
 498                          window->style->text_aa_gc };
 499     for (i=0; i<5; i++) {
 500       for (j=0; j<8; j++) {
 501         gdk_draw_rectangle(GDK_DRAWABLE(pix), colors[j][i],
 502                            TRUE, i*20, j*20, 20, 20);
 503         gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->black_gc,
 504                            FALSE, i*20, j*20, 20, 20);
 505       }
 506     }
 507   }
 508 #else
 509
 510   /* draw grid */
 511 #define LABEL_FONT "Sans 7"
 512   for (i=0; i<=LINES; i++) {
 513     PangoFontDescription *pfd;
 514     PangoLayout *pl = gtk_widget_create_pango_layout (GTK_WIDGET(image), NULL);
 515     gchar s[32];
 516     int w, h;
 517
 518     pango_layout_set_alignment (pl, PANGO_ALIGN_RIGHT);
 519     pfd = pango_font_description_from_string (LABEL_FONT);
 520     pango_layout_set_font_description (pl, pfd);
 521     pango_font_description_free (pfd);
 522 #ifdef METRIC
 523     sprintf(s, "%5dkm/h", (int)(mins + (LINES-i)*(maxs-mins)/LINES));
 524 #else
 525     sprintf(s, "%8dmph", (int)(mins + (LINES-i)*(maxs-mins)/LINES));
 526 #endif
 527     pango_layout_set_text(pl, s, -1);
 528     pango_layout_get_pixel_size (pl, &w, &h);
 529     gdk_draw_layout(GDK_DRAWABLE(pix), window->style->fg_gc[0], MARGIN-w-3,
 530                     CLAMP((int)i*PROFILE_HEIGHT/LINES - h/2, 0, PROFILE_HEIGHT-h), pl);
 531
 532     gdk_draw_line (GDK_DRAWABLE(pix), window->style->dark_gc[0],
 533                    MARGIN, PROFILE_HEIGHT/LINES * i, MARGIN + PROFILE_WIDTH, PROFILE_HEIGHT/LINES * i);
 534     g_object_unref ( G_OBJECT ( pl ) );
 535     pl = NULL;
 536   }
 537
 538
 539   /* draw speeds */
 540   for ( i = 0; i < PROFILE_WIDTH; i++ )
 541       gdk_draw_line ( GDK_DRAWABLE(pix), window->style->dark_gc[3],
 542                       i + MARGIN, PROFILE_HEIGHT, i + MARGIN, PROFILE_HEIGHT-PROFILE_HEIGHT*(speeds[i]-mins)/(maxs-mins) );
 543 #endif
 544
 545
 546   GdkGC *gps_speed_gc = gdk_gc_new ( window->window );
 547   GdkColor color;
 548
 549   gdk_color_parse ( "red", &color );
 550   gdk_gc_set_rgb_fg_color ( gps_speed_gc, &color);
 551
 552   time_t beg_time = VIK_TRACKPOINT(tr->trackpoints->data)->timestamp;
 553   time_t dur =  VIK_TRACKPOINT(g_list_last(tr->trackpoints)->data)->timestamp - beg_time;
 554   GList *iter;
 555   for (iter = tr->trackpoints; iter; iter = iter->next) {
 556     gdouble gps_speed = VIK_TRACKPOINT(iter->data)->speed;
 557     if (isnan(gps_speed))
 558         continue;
 559     int x = MARGIN + PROFILE_WIDTH * (VIK_TRACKPOINT(iter->data)->timestamp - beg_time) / dur;
 560     int y = PROFILE_HEIGHT - PROFILE_HEIGHT*(MTOK(gps_speed) - mins)/(maxs - mins);
 561     gdk_draw_rectangle(GDK_DRAWABLE(pix), gps_speed_gc, TRUE, x-2, y-2, 4, 4);
 562   }
 563
 564   /* draw border */
 565   gdk_draw_rectangle(GDK_DRAWABLE(pix), window->style->black_gc, FALSE, MARGIN, 0, PROFILE_WIDTH-1, PROFILE_HEIGHT-1);
 566
 567   g_object_unref ( G_OBJECT(pix) );
 568   g_object_unref ( G_OBJECT(gps_speed_gc) );
 569   g_free ( speeds );
 570
 571   eventbox = gtk_event_box_new ();
 572   g_signal_connect ( G_OBJECT(eventbox), "button_press_event", G_CALLBACK(track_vt_click), pass_along );
 573   g_signal_connect ( G_OBJECT(eventbox), "motion_notify_event", G_CALLBACK(track_vt_move), pass_along );
 574   g_signal_connect_swapped ( G_OBJECT(eventbox), "destroy", G_CALLBACK(g_free), pass_along );
 575   gtk_container_add ( GTK_CONTAINER(eventbox), image );
 576   gtk_widget_set_events (eventbox, GDK_BUTTON_PRESS_MASK
 577                          | GDK_POINTER_MOTION_MASK
 578                          | GDK_POINTER_MOTION_HINT_MASK);
 579
 580   return eventbox;
 581 }
 582 #undef MARGIN
 583 #undef LINES
 584
 585 static void propwin_response_cb( GtkDialog *dialog, gint resp, PropWidgets *widgets)
 586 {
 587   VikTrack *tr = widgets->tr;
 588   VikTrwLayer *vtl = widgets->vtl;
 589   gboolean keep_dialog = FALSE;
 590
 591   /* FIXME: check and make sure the track still exists before doing anything to it */
 592   /* Note: destroying diaglog (eg, parent window exit) won't give "response" */
 593   switch (resp) {
 594     case GTK_RESPONSE_DELETE_EVENT: /* received delete event (not from buttons) */
 595     case GTK_RESPONSE_REJECT:
 596       break;
 597     case GTK_RESPONSE_ACCEPT:
 598       vik_track_set_comment(tr, gtk_entry_get_text(GTK_ENTRY(widgets->w_comment)));
 599       break;
 600     case VIK_TRW_LAYER_PROPWIN_REVERSE:
 601       vik_track_reverse(tr);
 602       vik_layer_emit_update ( VIK_LAYER(vtl) );
 603       break;
 604     case VIK_TRW_LAYER_PROPWIN_DEL_DUP:
 605       vik_track_remove_dup_points(tr);
 606       /* above operation could have deleted current_tp or last_tp */
 607       trw_layer_cancel_tps_of_track ( vtl, widgets->track_name );
 608       vik_layer_emit_update ( VIK_LAYER(vtl) );
 609       break;
 610     case VIK_TRW_LAYER_PROPWIN_SPLIT:
 611       {
 612         /* get new tracks, add them, resolve naming conflicts (free if cancel), and delete old. old can still exist on clipboard. */
 613         guint ntracks;
 614         VikTrack **tracks = vik_track_split_into_segments(tr, &ntracks);
 615         gchar *new_tr_name;
 616         guint i;
 617         for ( i = 0; i < ntracks; i++ )
 618         {
 619           g_assert ( tracks[i] );
 620           new_tr_name = g_strdup_printf("%s #%d", widgets->track_name, i+1);
 621           /* if ( (wp_exists) && (! overwrite) ) */
 622           /* don't need to upper case new_tr_name because old tr name was uppercase */
 623           if ( vik_trw_layer_get_track(vtl, new_tr_name ) &&
 624              ( ! a_dialog_overwrite ( VIK_GTK_WINDOW_FROM_LAYER(vtl), "The track \"%s\" exists, do you wish to overwrite it?", new_tr_name ) ) )
 625           {
 626             gchar *new_new_tr_name = a_dialog_new_track ( VIK_GTK_WINDOW_FROM_LAYER(vtl), vik_trw_layer_get_tracks(vtl) );
 627             g_free ( new_tr_name );
 628             if (new_new_tr_name)
 629               new_tr_name = new_new_tr_name;
 630             else
 631             {
 632               new_tr_name = NULL;
 633               vik_track_free ( tracks[i] );
 634             }
 635           }
 636           if ( new_tr_name )
 637             vik_trw_layer_add_track ( vtl, new_tr_name, tracks[i] );
 638         }
 639         if ( tracks )
 640         {
 641           g_free ( tracks );
 642           /* Don't let track destroy this dialog */
 643           vik_track_clear_property_dialog(tr);
 644           vik_trw_layer_delete_track ( vtl, widgets->track_name );
 645           vik_layer_emit_update ( VIK_LAYER(vtl) ); /* chase thru the hoops */
 646         }
 647       }
 648       break;
 649     case VIK_TRW_LAYER_PROPWIN_SPLIT_MARKER:
 650       {
 651         GList *iter = tr->trackpoints;
 652         while ((iter = iter->next)) {
 653           if (widgets->marker_tp == VIK_TRACKPOINT(iter->data))
 654             break;
 655         }
 656         if (iter == NULL) {
 657           a_dialog_msg(VIK_GTK_WINDOW_FROM_LAYER(vtl), GTK_MESSAGE_ERROR,
 658                   _("Failed spliting track. Track unchanged"), NULL);
 659           keep_dialog = TRUE;
 660           break;
 661         }
 662
 663         gchar *r_name = g_strdup_printf("%s #R", widgets->track_name);
 664         if (vik_trw_layer_get_track(vtl, r_name ) &&
 665              ( ! a_dialog_overwrite( VIK_GTK_WINDOW_FROM_LAYER(vtl),
 666               "The track \"%s\" exists, do you wish to overwrite it?", r_name)))
 667         {
 668             gchar *new_r_name = a_dialog_new_track( VIK_GTK_WINDOW_FROM_LAYER(vtl), vik_trw_layer_get_tracks(vtl) );
 669             if (new_r_name) {
 670               g_free( r_name );
 671               r_name = new_r_name;
 672             }
 673             else {
 674               a_dialog_msg(VIK_GTK_WINDOW_FROM_LAYER(vtl), GTK_MESSAGE_WARNING,
 675                   _("Operation Aborted. Track unchanged"), NULL);
 676               keep_dialog = TRUE;
 677               break;
 678             }
 679         }
 680         iter->prev->next = NULL;
 681         iter->prev = NULL;
 682         VikTrack *tr_right = vik_track_new();
 683         if ( tr->comment )
 684           vik_track_set_comment ( tr_right, tr->comment );
 685         tr_right->visible = tr->visible;
 686         tr_right->trackpoints = iter;
 687
 688         vik_trw_layer_add_track(vtl, r_name, tr_right);
 689         vik_layer_emit_update ( VIK_LAYER(vtl) );
 690       }
 691       break;
 692     default:
 693       fprintf(stderr, "DEBUG: unknown response\n");
 694       return;
 695   }
 696
 697   /* Keep same behaviour for now: destroy dialog if click on any button */
 698   if (!keep_dialog) {
 699     prop_widgets_free(widgets);
 700     vik_track_clear_property_dialog(tr);
 701     gtk_widget_destroy ( GTK_WIDGET(dialog) );
 702   }
 703 }
 704
 705 static GtkWidget *create_graph_page ( GtkWidget *graph,
 706                                       const gchar *markup,
 707                                       GtkWidget *value)
 708 {
 709   GtkWidget *hbox = gtk_hbox_new ( FALSE, 10 );
 710   GtkWidget *vbox = gtk_vbox_new ( FALSE, 10 );
 711   GtkWidget *label = gtk_label_new (NULL);
 712   gtk_box_pack_start (GTK_BOX(vbox), graph, FALSE, FALSE, 0);
 713   gtk_label_set_markup ( GTK_LABEL(label), markup );
 714   gtk_box_pack_start (GTK_BOX(hbox), label, FALSE, FALSE, 0);
 715   gtk_box_pack_start (GTK_BOX(hbox), value, FALSE, FALSE, 0);
 716   gtk_box_pack_start (GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
 717
 718   return vbox;
 719 }
 720
 721 void vik_trw_layer_propwin_run ( GtkWindow *parent, VikTrwLayer *vtl, VikTrack *tr, gpointer vlp, gchar *track_name )
 722 {
 723   /* FIXME: free widgets when destroy signal received */
 724   PropWidgets *widgets = prop_widgets_new();
 725   widgets->vtl = vtl;
 726   widgets->tr = tr;
 727   widgets->vlp = vlp;
 728   widgets->track_name = track_name;
 729   gchar *title = g_strdup_printf(_("%s - Track Properties"), track_name);
 730   GtkWidget *dialog = gtk_dialog_new_with_buttons (title,
 731                          parent,
 732                          GTK_DIALOG_DESTROY_WITH_PARENT | GTK_DIALOG_NO_SEPARATOR,
 733                          GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
 734                          _("Split at Marker"), VIK_TRW_LAYER_PROPWIN_SPLIT_MARKER,
 735                          _("Split Segments"), VIK_TRW_LAYER_PROPWIN_SPLIT,
 736                          _("Reverse"),        VIK_TRW_LAYER_PROPWIN_REVERSE,
 737                          _("Delete Dupl."),   VIK_TRW_LAYER_PROPWIN_DEL_DUP,
 738                          GTK_STOCK_OK,     GTK_RESPONSE_ACCEPT,
 739                          NULL);
 740   widgets->dialog = dialog;
 741   g_free(title);
 742   g_signal_connect(dialog, "response", G_CALLBACK(propwin_response_cb), widgets);
 743   //fprintf(stderr, "DEBUG: dialog=0x%p\n", dialog);
 744   GtkTable *table;
 745   gdouble tr_len;
 746   guint32 tp_count, seg_count;
 747
 748   gdouble min_alt, max_alt;
 749   GtkWidget *profile = vik_trw_layer_create_profile(GTK_WIDGET(parent),tr, vlp, widgets, &min_alt,&max_alt);
 750   GtkWidget *vtdiag = vik_trw_layer_create_vtdiag(GTK_WIDGET(parent), tr, vlp, widgets);
 751   GtkWidget *graphs = gtk_notebook_new();
 752
 753   widgets->elev_box = profile;
 754   widgets->speed_box = vtdiag;
 755
 756   GtkWidget *content[20];
 757   int cnt;
 758   int i;
 759
 760   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>") };
 761   static gchar tmp_buf[50];
 762   gdouble tmp_speed;
 763
 764   cnt = 0;
 765   widgets->w_comment = gtk_entry_new ();
 766   if ( tr->comment )
 767     gtk_entry_set_text ( GTK_ENTRY(widgets->w_comment), tr->comment );
 768   g_signal_connect_swapped ( widgets->w_comment, "activate", G_CALLBACK(a_dialog_response_accept), GTK_DIALOG(dialog) );
 769   content[cnt++] = widgets->w_comment;
 770
 771   tr_len = widgets->track_length = vik_track_get_length(tr);
 772   g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f m", tr_len );
 773   widgets->w_track_length = content[cnt++] = gtk_label_new ( tmp_buf );
 774
 775   tp_count = vik_track_get_tp_count(tr);
 776   g_snprintf(tmp_buf, sizeof(tmp_buf), "%u", tp_count );
 777   widgets->w_tp_count = content[cnt++] = gtk_label_new ( tmp_buf );
 778
 779   seg_count = vik_track_get_segment_count(tr) ;
 780   g_snprintf(tmp_buf, sizeof(tmp_buf), "%u", seg_count );
 781   widgets->w_segment_count = content[cnt++] = gtk_label_new ( tmp_buf );
 782
 783   g_snprintf(tmp_buf, sizeof(tmp_buf), "%lu", vik_track_get_dup_point_count(tr) );
 784   widgets->w_duptp_count = content[cnt++] = gtk_label_new ( tmp_buf );
 785
 786   tmp_speed = vik_track_get_max_speed(tr);
 787   if ( tmp_speed == 0 )
 788     g_snprintf(tmp_buf, sizeof(tmp_buf), _("No Data"));
 789   else
 790     g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f m/s   (%.0f km/h)", tmp_speed, MTOK(tmp_speed) );
 791   widgets->w_max_speed = content[cnt++] = gtk_label_new ( tmp_buf );
 792
 793   tmp_speed = vik_track_get_average_speed(tr);
 794   if ( tmp_speed == 0 )
 795     g_snprintf(tmp_buf, sizeof(tmp_buf), _("No Data"));
 796   else
 797     g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f m/s   (%.0f km/h)", tmp_speed, MTOK(tmp_speed) );
 798   widgets->w_avg_speed = content[cnt++] = gtk_label_new ( tmp_buf );
 799
 800   g_snprintf(tmp_buf, sizeof(tmp_buf), "%.2f m", (tp_count - seg_count) == 0 ? 0 : tr_len / ( tp_count - seg_count ) );
 801   widgets->w_avg_dist = content[cnt++] = gtk_label_new ( tmp_buf );
 802
 803   if ( min_alt == VIK_DEFAULT_ALTITUDE )
 804     g_snprintf(tmp_buf, sizeof(tmp_buf), _("No Data"));
 805   else
 806     g_snprintf(tmp_buf, sizeof(tmp_buf), "%.0f m - %.0f m", min_alt, max_alt );
 807   widgets->w_elev_range = content[cnt++] = gtk_label_new ( tmp_buf );
 808
 809   vik_track_get_total_elevation_gain(tr, &max_alt, &min_alt );
 810   if ( min_alt == VIK_DEFAULT_ALTITUDE )
 811     g_snprintf(tmp_buf, sizeof(tmp_buf), _("No Data"));
 812   else
 813     g_snprintf(tmp_buf, sizeof(tmp_buf), "%.0f m / %.0f m", max_alt, min_alt );
 814   widgets->w_elev_gain = content[cnt++] = gtk_label_new ( tmp_buf );
 815
 816 #if 0
 817 #define PACK(w) gtk_box_pack_start (GTK_BOX(right_vbox), w, FALSE, FALSE, 0);
 818   gtk_box_pack_start (GTK_BOX(right_vbox), e_cmt, FALSE, FALSE, 0);
 819   PACK(l_len);
 820   PACK(l_tps);
 821   PACK(l_segs);
 822   PACK(l_dups);
 823   PACK(l_maxs);
 824   PACK(l_avgs);
 825   PACK(l_avgd);
 826   PACK(l_elev);
 827   PACK(l_galo);
 828 #undef PACK;
 829 #endif
 830
 831   if ( tr->trackpoints && VIK_TRACKPOINT(tr->trackpoints->data)->timestamp )
 832   {
 833     time_t t1, t2;
 834     t1 = VIK_TRACKPOINT(tr->trackpoints->data)->timestamp;
 835     t2 = VIK_TRACKPOINT(g_list_last(tr->trackpoints)->data)->timestamp;
 836
 837     strncpy(tmp_buf, ctime(&t1), sizeof(tmp_buf));
 838     tmp_buf[sizeof(tmp_buf)-1] = 0;
 839     g_strchomp(tmp_buf);
 840     widgets->w_time_start = content[cnt++] = gtk_label_new(tmp_buf);
 841
 842     strncpy(tmp_buf, ctime(&t2), sizeof(tmp_buf));
 843     tmp_buf[sizeof(tmp_buf)-1] = 0;
 844     g_strchomp(tmp_buf);
 845     widgets->w_time_end = content[cnt++] = gtk_label_new(tmp_buf);
 846
 847     g_snprintf(tmp_buf, sizeof(tmp_buf), _("%d minutes"), (int)(t2-t1)/60);
 848     widgets->w_time_dur = content[cnt++] = gtk_label_new(tmp_buf);
 849   } else {
 850     widgets->w_time_start = content[cnt++] = gtk_label_new(_("No Data"));
 851     widgets->w_time_end = content[cnt++] = gtk_label_new(_("No Data"));
 852     widgets->w_time_dur = content[cnt++] = gtk_label_new(_("No Data"));
 853   }
 854
 855   table = GTK_TABLE(gtk_table_new (cnt, 2, FALSE));
 856   gtk_table_set_col_spacing (table, 0, 10);
 857   for (i=0; i<cnt; i++) {
 858     GtkWidget *label;
 859
 860     label = gtk_label_new(NULL);
 861     gtk_misc_set_alignment ( GTK_MISC(label), 1, 0 );
 862     gtk_label_set_markup ( GTK_LABEL(label), _(label_texts[i]) );
 863     gtk_table_attach_defaults ( table, label, 0, 1, i, i+1 );
 864     if (GTK_IS_MISC(content[i])) {
 865       gtk_misc_set_alignment ( GTK_MISC(content[i]), 0, 0 );
 866     }
 867     gtk_table_attach_defaults ( table, content[i], 1, 2, i, i+1 );
 868   }
 869
 870   gtk_notebook_append_page(GTK_NOTEBOOK(graphs), GTK_WIDGET(table), gtk_label_new(_("Statistics")));
 871
 872   if ( profile ) {
 873     GtkWidget *page = NULL;
 874     widgets->w_cur_dist = gtk_label_new(_("No Data"));
 875     page = create_graph_page (profile, _("<b>Track Distance:</b>"), widgets->w_cur_dist );
 876     gtk_notebook_append_page(GTK_NOTEBOOK(graphs), page, gtk_label_new(_("Elevation-distance")));
 877   }
 878
 879   if ( vtdiag ) {
 880     GtkWidget *page = NULL;
 881     widgets->w_cur_time = gtk_label_new(_("No Data"));
 882     page = create_graph_page (vtdiag, _("<b>Track Time:</b>"), widgets->w_cur_time );
 883     gtk_notebook_append_page(GTK_NOTEBOOK(graphs), page, gtk_label_new(_("Speed-time")));
 884   }
 885
 886   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), graphs, FALSE, FALSE, 0);
 887
 888   gtk_dialog_set_response_sensitive(GTK_DIALOG(dialog), VIK_TRW_LAYER_PROPWIN_SPLIT_MARKER, FALSE);
 889   if (seg_count <= 1)
 890     gtk_dialog_set_response_sensitive(GTK_DIALOG(dialog), VIK_TRW_LAYER_PROPWIN_SPLIT, FALSE);
 891   if (vik_track_get_dup_point_count(tr) <= 0)
 892     gtk_dialog_set_response_sensitive(GTK_DIALOG(dialog), VIK_TRW_LAYER_PROPWIN_DEL_DUP, FALSE);
 893
 894   vik_track_set_property_dialog(tr, dialog);
 895   gtk_widget_show_all ( dialog );
 896 }