src/dialog.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 #include "viking.h"
  23 #include "thumbnails.h"
  24 #include "garminsymbols.h"
  25 #include "degrees_converters.h"
  26
  27 #include <stdlib.h>
  28 #include <string.h>
  29 #include <ctype.h>
  30
  31 void a_dialog_msg ( GtkWindow *parent, gint type, const gchar *info, const gchar *extra )
  32 {
  33   GtkWidget *msgbox = gtk_message_dialog_new ( parent, GTK_DIALOG_DESTROY_WITH_PARENT, type, GTK_BUTTONS_OK, info, extra );
  34   gtk_dialog_run ( GTK_DIALOG(msgbox) );
  35   gtk_widget_destroy ( msgbox );
  36 }
  37
  38 gboolean a_dialog_goto_latlon ( GtkWindow *parent, struct LatLon *ll, const struct LatLon *old )
  39 {
  40   GtkWidget *dialog = gtk_dialog_new_with_buttons ("Go to Lat/Lon",
  41                                                   parent,
  42                                                   GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
  43                                                   GTK_STOCK_CANCEL,
  44                                                   GTK_RESPONSE_REJECT,
  45                                                   GTK_STOCK_OK,
  46                                                   GTK_RESPONSE_ACCEPT,
  47                                                   NULL);
  48   GtkWidget *latlabel, *lonlabel;
  49   GtkWidget *lat, *lon;
  50   gchar *tmp_lat, *tmp_lon;
  51
  52   latlabel = gtk_label_new ("Latitude:");
  53   lat = gtk_entry_new ();
  54   tmp_lat = g_strdup_printf ( "%f", old->lat );
  55   gtk_entry_set_text ( GTK_ENTRY(lat), tmp_lat );
  56   g_free ( tmp_lat );
  57
  58   lonlabel = gtk_label_new ("Longitude:");
  59   lon = gtk_entry_new ();
  60   tmp_lon = g_strdup_printf ( "%f", old->lon );
  61   gtk_entry_set_text ( GTK_ENTRY(lon), tmp_lon );
  62   g_free ( tmp_lon );
  63
  64   gtk_widget_show ( latlabel );
  65   gtk_widget_show ( lonlabel );
  66   gtk_widget_show ( lat );
  67   gtk_widget_show ( lon );
  68
  69   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), latlabel,  FALSE, FALSE, 0);
  70   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), lat, FALSE, FALSE, 0);
  71   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), lonlabel,  FALSE, FALSE, 0);
  72   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), lon,  FALSE, FALSE, 0);
  73
  74   if ( gtk_dialog_run ( GTK_DIALOG(dialog) ) == GTK_RESPONSE_ACCEPT )
  75   {
  76     ll->lat = convert_dms_to_dec ( gtk_entry_get_text ( GTK_ENTRY(lat) ) );
  77     ll->lon = convert_dms_to_dec ( gtk_entry_get_text ( GTK_ENTRY(lon) ) );
  78     gtk_widget_destroy ( dialog );
  79     return TRUE;
  80   }
  81
  82   gtk_widget_destroy ( dialog );
  83   return FALSE;
  84 }
  85
  86 gboolean a_dialog_goto_utm ( GtkWindow *parent, struct UTM *utm, const struct UTM *old )
  87 {
  88   GtkWidget *dialog = gtk_dialog_new_with_buttons ("Go to Lat/Lon",
  89                                                   parent,
  90                                                   GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
  91                                                   GTK_STOCK_CANCEL,
  92                                                   GTK_RESPONSE_REJECT,
  93                                                   GTK_STOCK_OK,
  94                                                   GTK_RESPONSE_ACCEPT,
  95                                                   NULL);
  96   GtkWidget *norlabel, *easlabel, *nor, *eas;
  97   GtkWidget *zonehbox, *zonespin, *letterentry;
  98   gchar *tmp_eas, *tmp_nor;
  99   gchar tmp_letter[2];
 100
 101   norlabel = gtk_label_new ("Northing:");
 102   nor = gtk_entry_new ();
 103   tmp_nor = g_strdup_printf("%ld", (long) old->northing );
 104   gtk_entry_set_text ( GTK_ENTRY(nor), tmp_nor );
 105   g_free ( tmp_nor );
 106
 107   easlabel = gtk_label_new ("Easting:");
 108   eas = gtk_entry_new ();
 109   tmp_eas = g_strdup_printf("%ld", (long) old->easting );
 110   gtk_entry_set_text ( GTK_ENTRY(eas), tmp_eas );
 111   g_free ( tmp_eas );
 112
 113   zonehbox = gtk_hbox_new ( FALSE, 0 );
 114   gtk_box_pack_start ( GTK_BOX(zonehbox), gtk_label_new ( "Zone:" ), FALSE, FALSE, 5 );
 115   zonespin = gtk_spin_button_new ( (GtkAdjustment *) gtk_adjustment_new ( old->zone, 1, 60, 1, 5, 5 ), 1, 0 );
 116   gtk_box_pack_start ( GTK_BOX(zonehbox), zonespin, TRUE, TRUE, 5 );
 117   gtk_box_pack_start ( GTK_BOX(zonehbox), gtk_label_new ( "Letter:" ), FALSE, FALSE, 5 );
 118   letterentry = gtk_entry_new ();
 119   gtk_entry_set_max_length ( GTK_ENTRY(letterentry), 1 );
 120   gtk_entry_set_width_chars ( GTK_ENTRY(letterentry), 2 );
 121   tmp_letter[0] = old->letter;
 122   tmp_letter[1] = '\0';
 123   gtk_entry_set_text ( GTK_ENTRY(letterentry), tmp_letter );
 124   gtk_box_pack_start ( GTK_BOX(zonehbox), letterentry, FALSE, FALSE, 5 );
 125
 126   gtk_widget_show ( norlabel );
 127   gtk_widget_show ( easlabel );
 128   gtk_widget_show ( nor );
 129   gtk_widget_show ( eas );
 130
 131   gtk_widget_show_all ( zonehbox );
 132
 133   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), norlabel, FALSE, FALSE, 0);
 134   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), nor, FALSE, FALSE, 0);
 135   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), easlabel,  FALSE, FALSE, 0);
 136   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), eas,  FALSE, FALSE, 0);
 137   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), zonehbox,  FALSE, FALSE, 0);
 138
 139   if ( gtk_dialog_run ( GTK_DIALOG(dialog) ) == GTK_RESPONSE_ACCEPT )
 140   {
 141     const gchar *letter;
 142     utm->northing = atof ( gtk_entry_get_text ( GTK_ENTRY(nor) ) );
 143     utm->easting = atof ( gtk_entry_get_text ( GTK_ENTRY(eas) ) );
 144     utm->zone = gtk_spin_button_get_value_as_int ( GTK_SPIN_BUTTON(zonespin) );
 145     letter = gtk_entry_get_text ( GTK_ENTRY(letterentry) );
 146     if (*letter)
 147        utm->letter = toupper(*letter);
 148     gtk_widget_destroy ( dialog );
 149     return TRUE;
 150   }
 151
 152   gtk_widget_destroy ( dialog );
 153   return FALSE;
 154 }
 155
 156 void a_dialog_response_accept ( GtkDialog *dialog )
 157 {
 158   gtk_dialog_response ( dialog, GTK_RESPONSE_ACCEPT );
 159 }
 160
 161 /* todo: less on this side, like add track */
 162 gboolean a_dialog_new_waypoint ( GtkWindow *parent, gchar **dest, VikWaypoint *wp, GHashTable *waypoints, VikCoordMode coord_mode )
 163 {
 164   GtkWidget *dialog = gtk_dialog_new_with_buttons ("Create",
 165                                                    parent,
 166                                                    GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
 167                                                    GTK_STOCK_CANCEL,
 168                                                    GTK_RESPONSE_REJECT,
 169                                                    GTK_STOCK_OK,
 170                                                    GTK_RESPONSE_ACCEPT,
 171                                                    NULL);
 172   struct LatLon ll;
 173   GtkWidget *latlabel, *lonlabel, *namelabel, *latentry, *lonentry, *altentry, *altlabel, *nameentry, *commentlabel,
 174     *commententry, *imagelabel, *imageentry, *symbollabel, *symbolentry;
 175   GtkListStore *store;
 176
 177
 178
 179
 180   gchar *lat, *lon, *alt;
 181
 182   vik_coord_to_latlon ( &(wp->coord), &ll );
 183
 184   lat = g_strdup_printf ( "%f", ll.lat );
 185   lon = g_strdup_printf ( "%f", ll.lon );
 186   alt = g_strdup_printf ( "%f", wp->altitude );
 187
 188   if ( dest != NULL )
 189   {
 190     namelabel = gtk_label_new ("Name:");
 191     nameentry = gtk_entry_new ();
 192     g_signal_connect_swapped ( nameentry, "activate", G_CALLBACK(a_dialog_response_accept), GTK_DIALOG(dialog) );
 193     gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), namelabel, FALSE, FALSE, 0);
 194     gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), nameentry, FALSE, FALSE, 0);
 195   }
 196
 197   latlabel = gtk_label_new ("Latitude:");
 198   latentry = gtk_entry_new ();
 199   gtk_entry_set_text ( GTK_ENTRY(latentry), lat );
 200   g_free ( lat );
 201
 202   lonlabel = gtk_label_new ("Longitude:");
 203   lonentry = gtk_entry_new ();
 204   gtk_entry_set_text ( GTK_ENTRY(lonentry), lon );
 205   g_free ( lon );
 206
 207   altlabel = gtk_label_new ("Altitude:");
 208   altentry = gtk_entry_new ();
 209   gtk_entry_set_text ( GTK_ENTRY(altentry), alt );
 210   g_free ( alt );
 211
 212   commentlabel = gtk_label_new ("Comment:");
 213   commententry = gtk_entry_new ();
 214
 215   imagelabel = gtk_label_new ("Image:");
 216   imageentry = vik_file_entry_new ();
 217
 218   {
 219     GtkCellRenderer *r;
 220     symbollabel = gtk_label_new ("Symbol:");
 221     GtkTreeIter iter;
 222
 223     store = gtk_list_store_new(3, G_TYPE_STRING, GDK_TYPE_PIXBUF, G_TYPE_STRING);
 224     symbolentry = gtk_combo_box_new_with_model(GTK_TREE_MODEL(store));
 225     gtk_combo_box_set_wrap_width(GTK_COMBO_BOX(symbolentry), 3);
 226     gtk_list_store_append (store, &iter);
 227     gtk_list_store_set (store, &iter, 0, NULL, 1, NULL, 2, "(none)", -1);
 228     a_populate_sym_list(store);
 229
 230     r = gtk_cell_renderer_pixbuf_new ();
 231     gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (symbolentry), r, FALSE);
 232     gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (symbolentry), r, "pixbuf", 1, NULL);
 233
 234     r = gtk_cell_renderer_text_new ();
 235     gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (symbolentry), r, FALSE);
 236     gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (symbolentry), r, "text", 2, NULL);
 237
 238     if ( dest == NULL && wp->symbol ) {
 239       gboolean ok;
 240       gchar *sym;
 241       for (ok = gtk_tree_model_get_iter_first ( GTK_TREE_MODEL(store), &iter ); ok; ok = gtk_tree_model_iter_next ( GTK_TREE_MODEL(store), &iter)) {
 242         gtk_tree_model_get ( GTK_TREE_MODEL(store), &iter, 0, (void *)&sym, -1 );
 243         if (sym && !strcmp(sym, wp->symbol)) {
 244           g_free(sym);
 245           break;
 246         } else {
 247           g_free(sym);
 248         }
 249       }
 250       gtk_combo_box_set_active_iter(GTK_COMBO_BOX(symbolentry), &iter);
 251     }
 252   }
 253
 254   if ( dest == NULL && wp->comment )
 255     gtk_entry_set_text ( GTK_ENTRY(commententry), wp->comment );
 256
 257   if ( dest == NULL && wp->image )
 258     vik_file_entry_set_filename ( VIK_FILE_ENTRY(imageentry), wp->image );
 259
 260
 261   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), latlabel, FALSE, FALSE, 0);
 262   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), latentry, FALSE, FALSE, 0);
 263   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), lonlabel, FALSE, FALSE, 0);
 264   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), lonentry, FALSE, FALSE, 0);
 265   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), altlabel, FALSE, FALSE, 0);
 266   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), altentry, FALSE, FALSE, 0);
 267   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), commentlabel, FALSE, FALSE, 0);
 268   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), commententry, FALSE, FALSE, 0);
 269   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), imagelabel, FALSE, FALSE, 0);
 270   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), imageentry, FALSE, FALSE, 0);
 271   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), symbollabel, FALSE, FALSE, 0);
 272   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), GTK_WIDGET(symbolentry), FALSE, FALSE, 0);
 273
 274   gtk_widget_show_all ( GTK_DIALOG(dialog)->vbox );
 275
 276   while ( gtk_dialog_run ( GTK_DIALOG(dialog) ) == GTK_RESPONSE_ACCEPT )
 277   {
 278     if ( dest )
 279     {
 280       const gchar *constname = gtk_entry_get_text ( GTK_ENTRY(nameentry) );
 281       if ( strlen(constname) == 0 ) /* TODO: other checks (isalpha or whatever ) */
 282         a_dialog_info_msg ( parent, "Please enter a name for the waypoint." );
 283       else {
 284         int i;
 285         gchar *name = g_strdup ( constname );
 286
 287         for ( i = strlen ( name ) - 1; i >= 0; i-- )
 288           name[i] = toupper(name[i]); /* all caps for stardandization */
 289
 290         if ( g_hash_table_lookup ( waypoints, name ) && !a_dialog_overwrite ( parent, "The waypoint \"%s\" exists, do you want to overwrite it?", name ) )
 291           g_free ( name );
 292         else
 293         {
 294           /* Do It */
 295           *dest = name;
 296           ll.lat = convert_dms_to_dec ( gtk_entry_get_text ( GTK_ENTRY(latentry) ) );
 297           ll.lon = convert_dms_to_dec ( gtk_entry_get_text ( GTK_ENTRY(lonentry) ) );
 298           vik_coord_load_from_latlon ( &(wp->coord), coord_mode, &ll );
 299           wp->altitude = atof ( gtk_entry_get_text ( GTK_ENTRY(altentry) ) );
 300           vik_waypoint_set_comment ( wp, gtk_entry_get_text ( GTK_ENTRY(commententry) ) );
 301           vik_waypoint_set_image ( wp, vik_file_entry_get_filename ( VIK_FILE_ENTRY(imageentry) ) );
 302           if ( wp->image && *(wp->image) && (!a_thumbnails_exists(wp->image)) )
 303             a_thumbnails_create ( wp->image );
 304
 305           {
 306             GtkTreeIter iter, first;
 307             gtk_tree_model_get_iter_first ( GTK_TREE_MODEL(store), &first );
 308             if ( !gtk_combo_box_get_active_iter ( GTK_COMBO_BOX(symbolentry), &iter ) || !memcmp(&iter, &first, sizeof(GtkTreeIter)) ) {
 309               vik_waypoint_set_symbol ( wp, NULL );
 310             } else {
 311               gchar *sym;
 312               gtk_tree_model_get ( GTK_TREE_MODEL(store), &iter, 0, (void *)&sym, -1 );
 313               vik_waypoint_set_symbol ( wp, sym );
 314               g_free(sym);
 315             }
 316           }
 317
 318           gtk_widget_destroy ( dialog );
 319           return TRUE;
 320         }
 321       } /* else (valid name) */
 322     }
 323     else
 324     {
 325       ll.lat = convert_dms_to_dec ( gtk_entry_get_text ( GTK_ENTRY(latentry) ) );
 326       ll.lon = convert_dms_to_dec ( gtk_entry_get_text ( GTK_ENTRY(lonentry) ) );
 327       vik_coord_load_from_latlon ( &(wp->coord), coord_mode, &ll );
 328       wp->altitude = atof ( gtk_entry_get_text ( GTK_ENTRY(altentry) ) );
 329       if ( (! wp->comment) || strcmp ( wp->comment, gtk_entry_get_text ( GTK_ENTRY(commententry) ) ) != 0 )
 330         vik_waypoint_set_comment ( wp, gtk_entry_get_text ( GTK_ENTRY(commententry) ) );
 331       if ( (! wp->image) || strcmp ( wp->image, vik_file_entry_get_filename ( VIK_FILE_ENTRY ( imageentry ) ) ) != 0 )
 332       {
 333         vik_waypoint_set_image ( wp, vik_file_entry_get_filename ( VIK_FILE_ENTRY(imageentry) ) );
 334         if ( wp->image && *(wp->image) && (!a_thumbnails_exists(wp->image)) )
 335           a_thumbnails_create ( wp->image );
 336       }
 337
 338       {
 339         GtkTreeIter iter, first;
 340         gtk_tree_model_get_iter_first ( GTK_TREE_MODEL(store), &first );
 341         if ( !gtk_combo_box_get_active_iter ( GTK_COMBO_BOX(symbolentry), &iter ) || !memcmp(&iter, &first, sizeof(GtkTreeIter)) ) {
 342           vik_waypoint_set_symbol ( wp, NULL );
 343         } else {
 344           gchar *sym;
 345           gtk_tree_model_get ( GTK_TREE_MODEL(store), &iter, 0, (void *)&sym, -1 );
 346           vik_waypoint_set_symbol ( wp, sym );
 347           g_free(sym);
 348         }
 349       }
 350
 351       gtk_widget_destroy ( dialog );
 352
 353       return TRUE;
 354     }
 355   }
 356   gtk_widget_destroy ( dialog );
 357   return FALSE;
 358 }
 359
 360 gchar *a_dialog_new_track ( GtkWindow *parent, GHashTable *tracks )
 361 {
 362   GtkWidget *dialog = gtk_dialog_new_with_buttons ("Add Track",
 363                                                   parent,
 364                                                   GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
 365                                                   GTK_STOCK_CANCEL,
 366                                                   GTK_RESPONSE_REJECT,
 367                                                   GTK_STOCK_OK,
 368                                                   GTK_RESPONSE_ACCEPT,
 369                                                   NULL);
 370   GtkWidget *label = gtk_label_new ( "Track Name:" );
 371   GtkWidget *entry = gtk_entry_new ();
 372
 373   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), label, FALSE, FALSE, 0);
 374   gtk_box_pack_start (GTK_BOX(GTK_DIALOG(dialog)->vbox), entry, FALSE, FALSE, 0);
 375
 376   g_signal_connect_swapped ( entry, "activate", G_CALLBACK(a_dialog_response_accept), GTK_DIALOG(dialog) );
 377
 378   gtk_widget_show ( label );
 379   gtk_widget_show ( entry );
 380
 381   while ( gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_ACCEPT )
 382   {
 383     const gchar *constname = gtk_entry_get_text ( GTK_ENTRY(entry) );
 384     if ( *constname == '\0' )
 385       a_dialog_info_msg ( parent, "Please enter a name for the track." );
 386     else {
 387       gchar *name = g_strdup ( constname );
 388       gint i;
 389
 390       for ( i = strlen ( name ) - 1; i >= 0; i-- )
 391         name[i] = toupper(name[i]); /* all caps for stardandization */
 392
 393       if ( g_hash_table_lookup( tracks, name ) && !a_dialog_overwrite ( parent, "The track \"%s\" exists, do you want to overwrite it?", gtk_entry_get_text ( GTK_ENTRY(entry) ) ) )
 394       {
 395         g_free ( name );
 396       }
 397       else
 398       {
 399         gtk_widget_destroy ( dialog );
 400         return name;
 401       }
 402     }
 403   }
 404   gtk_widget_destroy ( dialog );
 405   return NULL;
 406 }
 407
 408 /* creates a vbox full of labels */
 409 GtkWidget *a_dialog_create_label_vbox ( gchar **texts, int label_count )
 410 {
 411   GtkWidget *vbox, *label;
 412   int i;
 413   vbox = gtk_vbox_new( TRUE, 3 );
 414
 415   for ( i = 0; i < label_count; i++ )
 416   {
 417     label = gtk_label_new(NULL);
 418     gtk_label_set_markup ( GTK_LABEL(label), texts[i] );
 419     gtk_box_pack_start ( GTK_BOX(vbox), label, FALSE, TRUE, 5 );
 420   }
 421   return vbox;
 422 }
 423
 424 gboolean a_dialog_overwrite ( GtkWindow *parent, const gchar *message, const gchar *extra )
 425 {
 426   GtkWidget *dia;
 427   dia = gtk_message_dialog_new ( parent,
 428                                  GTK_DIALOG_DESTROY_WITH_PARENT,
 429                                  GTK_MESSAGE_QUESTION,
 430                                  GTK_BUTTONS_YES_NO,
 431                                  message, extra );
 432
 433   if ( gtk_dialog_run ( GTK_DIALOG(dia) ) == GTK_RESPONSE_YES )
 434   {
 435     gtk_widget_destroy ( dia );
 436     return TRUE;
 437   }
 438   else
 439   {
 440     gtk_widget_destroy ( dia );
 441     return FALSE;
 442   }
 443 }
 444
 445 static void zoom_spin_changed ( GtkSpinButton *spin, GtkWidget *pass_along[3] )
 446 {
 447   if ( gtk_toggle_button_get_active ( GTK_TOGGLE_BUTTON(pass_along[2]) ) )
 448     gtk_spin_button_set_value (
 449         GTK_SPIN_BUTTON(pass_along[GTK_WIDGET(spin) == pass_along[0] ? 1 : 0]),
 450         gtk_spin_button_get_value ( spin ) );
 451 }
 452
 453 gboolean a_dialog_custom_zoom ( GtkWindow *parent, gdouble *xmpp, gdouble *ympp )
 454 {
 455   GtkWidget *dialog = gtk_dialog_new_with_buttons ("Zoom Factors...",
 456                                                   parent,
 457                                                   GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
 458                                                   GTK_STOCK_CANCEL,
 459                                                   GTK_RESPONSE_REJECT,
 460                                                   GTK_STOCK_OK,
 461                                                   GTK_RESPONSE_ACCEPT,
 462                                                   NULL);
 463   GtkWidget *table, *label, *xlabel, *xspin, *ylabel, *yspin, *samecheck;
 464   GtkWidget *pass_along[3];
 465
 466   table = gtk_table_new ( 4, 2, FALSE );
 467   gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), table, TRUE, TRUE, 0 );
 468
 469   label = gtk_label_new ( "Zoom factor (in meters per pixel:" );
 470   xlabel = gtk_label_new ( "X (easting): ");
 471   ylabel = gtk_label_new ( "Y (northing): ");
 472
 473   pass_along[0] = xspin = gtk_spin_button_new ( (GtkAdjustment *) gtk_adjustment_new ( *xmpp, VIK_VIEWPORT_MIN_ZOOM, VIK_VIEWPORT_MAX_ZOOM, 1, 5, 5 ), 1, 8 );
 474   pass_along[1] = yspin = gtk_spin_button_new ( (GtkAdjustment *) gtk_adjustment_new ( *ympp, VIK_VIEWPORT_MIN_ZOOM, VIK_VIEWPORT_MAX_ZOOM, 1, 5, 5 ), 1, 8 );
 475
 476   pass_along[2] = samecheck = gtk_check_button_new_with_label ( "X and Y zoom factors must be equal" );
 477   /* TODO -- same factor */
 478   /*  samecheck = gtk_check_button_new_with_label ( "Same x/y zoom factor" ); */
 479
 480   if ( *xmpp == *ympp )
 481     gtk_toggle_button_set_active ( GTK_TOGGLE_BUTTON(samecheck), TRUE );
 482
 483   gtk_table_attach_defaults ( GTK_TABLE(table), label, 0, 2, 0, 1 );
 484   gtk_table_attach_defaults ( GTK_TABLE(table), xlabel, 0, 1, 1, 2 );
 485   gtk_table_attach_defaults ( GTK_TABLE(table), xspin, 1, 2, 1, 2 );
 486   gtk_table_attach_defaults ( GTK_TABLE(table), ylabel, 0, 1, 2, 3 );
 487   gtk_table_attach_defaults ( GTK_TABLE(table), yspin, 1, 2, 2, 3 );
 488   gtk_table_attach_defaults ( GTK_TABLE(table), samecheck, 0, 2, 3, 4 );
 489
 490   gtk_widget_show_all ( table );
 491
 492   g_signal_connect ( G_OBJECT(xspin), "value-changed", G_CALLBACK(zoom_spin_changed), pass_along );
 493   g_signal_connect ( G_OBJECT(yspin), "value-changed", G_CALLBACK(zoom_spin_changed), pass_along );
 494
 495   if ( gtk_dialog_run ( GTK_DIALOG(dialog) ) == GTK_RESPONSE_ACCEPT )
 496   {
 497     *xmpp = gtk_spin_button_get_value ( GTK_SPIN_BUTTON(xspin) );
 498     *ympp = gtk_spin_button_get_value ( GTK_SPIN_BUTTON(yspin) );
 499     gtk_widget_destroy ( dialog );
 500     return TRUE;
 501   }
 502   gtk_widget_destroy ( dialog );
 503   return FALSE;
 504 }
 505
 506 static void split_spin_focused ( GtkSpinButton *spin, GtkWidget *pass_along[1] )
 507 {
 508   gtk_toggle_button_set_active    (GTK_TOGGLE_BUTTON(pass_along[0]), 1);
 509 }
 510
 511 gboolean a_dialog_time_threshold ( GtkWindow *parent, gchar *title_text, gchar *label_text, guint *thr )
 512 {
 513   GtkWidget *dialog = gtk_dialog_new_with_buttons (title_text,
 514                                                   parent,
 515                                                   GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
 516                                                   GTK_STOCK_CANCEL,
 517                                                   GTK_RESPONSE_REJECT,
 518                                                   GTK_STOCK_OK,
 519                                                   GTK_RESPONSE_ACCEPT,
 520                                                   NULL);
 521   GtkWidget *table, *t1, *t2, *t3, *t4, *spin, *label;
 522   GtkWidget *pass_along[1];
 523
 524   table = gtk_table_new ( 4, 2, FALSE );
 525   gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), table, TRUE, TRUE, 0 );
 526
 527   label = gtk_label_new (label_text);
 528
 529   t1 = gtk_radio_button_new_with_label ( NULL, "1 min" );
 530   t2 = gtk_radio_button_new_with_label_from_widget ( GTK_RADIO_BUTTON(t1), "1 hour" );
 531   t3 = gtk_radio_button_new_with_label_from_widget ( GTK_RADIO_BUTTON(t2), "1 day" );
 532   t4 = gtk_radio_button_new_with_label_from_widget ( GTK_RADIO_BUTTON(t3), "Custom (in minutes):" );
 533
 534   pass_along[0] = t4;
 535
 536   spin = gtk_spin_button_new ( (GtkAdjustment *) gtk_adjustment_new ( *thr, 0, 65536, 1, 5, 5 ), 1, 0 );
 537
 538   gtk_table_attach_defaults ( GTK_TABLE(table), label, 0, 2, 0, 1 );
 539   gtk_table_attach_defaults ( GTK_TABLE(table), t1, 0, 1, 1, 2 );
 540   gtk_table_attach_defaults ( GTK_TABLE(table), t2, 0, 1, 2, 3 );
 541   gtk_table_attach_defaults ( GTK_TABLE(table), t3, 0, 1, 3, 4 );
 542   gtk_table_attach_defaults ( GTK_TABLE(table), t4, 0, 1, 4, 5 );
 543   gtk_table_attach_defaults ( GTK_TABLE(table), spin, 1, 2, 4, 5 );
 544
 545   gtk_widget_show_all ( table );
 546
 547   g_signal_connect ( G_OBJECT(spin), "grab-focus", G_CALLBACK(split_spin_focused), pass_along );
 548
 549   if ( gtk_dialog_run ( GTK_DIALOG(dialog) ) == GTK_RESPONSE_ACCEPT )
 550   {
 551     if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(t1))) {
 552       *thr = 1;
 553     } else if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(t2))) {
 554       *thr = 60;
 555     } else if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(t3))) {
 556       *thr = 60 * 24;
 557     } else if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(t4))) {
 558       *thr = gtk_spin_button_get_value ( GTK_SPIN_BUTTON(spin) );
 559     }
 560     gtk_widget_destroy ( dialog );
 561     return TRUE;
 562   }
 563   gtk_widget_destroy ( dialog );
 564   return FALSE;
 565 }
 566
 567
 568 void a_dialog_about ( GtkWindow *parent )
 569 {
 570   int re;
 571   char *msg = g_markup_printf_escaped (
 572     "<span font_desc='20' weight='bold'>Viking %s</span>\n\n"
 573     "GPS Data and Topo Analyzer, Explorer, and Manager.\n\n"
 574     "<small>(C) 2003-2007, Evan Battaglia</small>\n\n"
 575     "<small>Web site: %s</small>",
 576     VIKING_VERSION, VIKING_URL);
 577   GtkWidget *msgbox = gtk_message_dialog_new_with_markup ( parent,
 578                                                            GTK_DIALOG_DESTROY_WITH_PARENT,
 579                                                            GTK_MESSAGE_INFO,
 580                                                            GTK_BUTTONS_NONE,
 581                                                            msg);
 582
 583   gtk_dialog_add_buttons (GTK_DIALOG(msgbox), "Credits", 1, "License", 2, "Close", 3, NULL, NULL);
 584
 585   while ((re = gtk_dialog_run ( GTK_DIALOG(msgbox))) != 3) {
 586     if (re==1) {
 587       /* creds */
 588       a_dialog_info_msg(parent,
 589                         "Author:\n"
 590                         "  Evan Battaglia <gtoevan@gmx.net>\n\n"
 591                         "Contributors:\n"
 592                         "  Alex Foobarian <foobarian@gmail.com>\n"
 593                         "  Guilhem Bonnefille <guilhem.bonnefille@gmail.com>\n"
 594                         "  Jocelyn Jaubert <jocelyn.jaubert@gmail.com>\n"
 595                         "  Quy Tonthat <qtonthat@gmail.com>\n"
 596                         "  Reid Priedhorsky <reid@reidster.net>\n"
 597                         );
 598     }
 599     if (re==2) {
 600       a_dialog_info_msg(parent, "\n\n"
 601                         "This program is free software; you can redistribute it and/or modify "
 602                         "it under the terms of the GNU General Public License as published by "
 603                         "the Free Software Foundation; either version 2 of the License, or "
 604                         "(at your option) any later version."
 605                         "\n\n"
 606                         "This program is distributed in the hope that it will be useful, "
 607                         "but WITHOUT ANY WARRANTY; without even the implied warranty of "
 608                         "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the "
 609                         "GNU General Public License for more details."
 610                         "\n\n"
 611                         "You should have received a copy of the GNU General Public License "
 612                         "along with this program; if not, write to the Free Software "
 613                         "Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA");
 614     }
 615   }
 616   gtk_widget_destroy ( msgbox );
 617 }