client/gui-gtk-3.0/transportdlg.c

   1 /***********************************************************************
   2  Freeciv - Copyright (C) 1996 - A Kjeldberg, L Gregersen, P Unold
   3    This program is free software; you can redistribute it and/or modify
   4    it under the terms of the GNU General Public License as published by
   5    the Free Software Foundation; either version 2, or (at your option)
   6    any later version.
   7
   8    This program is distributed in the hope that it will be useful,
   9    but WITHOUT ANY WARRANTY; without even the implied warranty of
  10    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11    GNU General Public License for more details.
  12 ***********************************************************************/
  13
  14 #ifdef HAVE_CONFIG_H
  15 #include <fc_config.h>
  16 #endif
  17
  18 #include <gtk/gtk.h>
  19
  20 /* utility */
  21 #include "fcintl.h"
  22
  23 /* common */
  24 #include "game.h"
  25 #include "movement.h"
  26 #include "unit.h"
  27
  28 /* client */
  29 #include "control.h"
  30 #include "tilespec.h"
  31
  32 /* client/gui-gtk-3.0 */
  33 #include "gui_main.h"
  34 #include "gui_stuff.h"
  35 #include "sprite.h"
  36 #include "unitselunitdlg.h"
  37
  38 #include "transportdlg.h"
  39
  40 struct transport_radio_cb_data {
  41   GtkWidget *dlg;
  42   int tp_id;
  43 };
  44
  45 /****************************************************************
  46   Handle user response to transport dialog.
  47 *****************************************************************/
  48 static void transport_response_callback(GtkWidget *dlg, gint arg)
  49 {
  50   if (arg == GTK_RESPONSE_YES) {
  51     struct unit *pcargo =
  52       game_unit_by_number(GPOINTER_TO_INT(
  53                             g_object_get_data(G_OBJECT(dlg),
  54                                               "actor")));
  55
  56     if (pcargo != NULL) {
  57       int tp_id = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(dlg),
  58                                                     "target"));
  59       struct tile *ptile = g_object_get_data(G_OBJECT(dlg), "tile");
  60
  61       if (tp_id == 0) {
  62         /* Load to any */
  63         request_unit_load(pcargo, NULL, ptile);
  64       } else {
  65         struct unit *ptransport = game_unit_by_number(tp_id);
  66
  67         if (ptransport != NULL) {
  68           /* Still exist */
  69           request_unit_load(pcargo, ptransport, ptile);
  70         }
  71       }
  72     }
  73   }
  74
  75   gtk_widget_destroy(dlg);
  76 }
  77
  78 /****************************************************************************
  79   Handle transport request automatically when there's nothing to
  80   choose from. Otherwise open up transport dialog for the unit
  81 ****************************************************************************/
  82 bool request_transport(struct unit *cargo, struct tile *ptile)
  83 {
  84   int tcount;
  85   struct unit_list *potential_transports = unit_list_new();
  86   struct unit *best_transport = transporter_for_unit_at(cargo, ptile);
  87
  88   unit_list_iterate(ptile->units, ptransport) {
  89     if (can_unit_transport(ptransport, cargo)
  90         && get_transporter_occupancy(ptransport) < get_transporter_capacity(ptransport)) {
  91       unit_list_append(potential_transports, ptransport);
  92     }
  93   } unit_list_iterate_end;
  94
  95   tcount = unit_list_size(potential_transports);
  96
  97   if (tcount == 0) {
  98     fc_assert(best_transport == NULL);
  99     unit_list_destroy(potential_transports);
 100
 101     return FALSE; /* Unit was not handled here. */
 102   } else if (tcount == 1) {
 103     /* There's exactly one potential transport - use it automatically */
 104     fc_assert(unit_list_get(potential_transports, 0) == best_transport);
 105     request_unit_load(cargo, unit_list_get(potential_transports, 0), ptile);
 106
 107     unit_list_destroy(potential_transports);
 108
 109     return TRUE;
 110   }
 111
 112   return select_tgt_unit(cargo, ptile, potential_transports, best_transport,
 113                          _("Transport selection"),
 114                          _("Looking for transport:"),
 115                          _("Transports available:"),
 116                          _("Load"),
 117                          G_CALLBACK(transport_response_callback));
 118 }