client/gui-qt/gotodlg.cpp

   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 //qt
  19 #include <QApplication>
  20 #include <QHeaderView>
  21 #include <QTableWidget>
  22
  23 /* common */
  24 #include "game.h"
  25
  26 /* client */
  27 #include "client_main.h"
  28 #include "control.h"
  29 #include "goto.h"
  30 #include "text.h"
  31
  32 // gui-qt
  33 #include "sprite.h"
  34 #include "qtg_cxxside.h"
  35 #include "gotodlg.h"
  36
  37 /***************************************************************************
  38   Constructor for goto_dialog
  39 ***************************************************************************/
  40 goto_dialog::goto_dialog(QWidget *parent)
  41 {
  42   QStringList headers_lst;
  43   QHBoxLayout *hb;
  44
  45   setParent(parent);
  46   headers_lst << QString(_("City")) << QString(_("Nation"))
  47               << QString(_("Airlift"));
  48   goto_tab = new QTableWidget;
  49   goto_city = new QPushButton(_("&Goto"));
  50   airlift_city = new QPushButton(_("&Airlift"));
  51   close_but = new QPushButton(_("&Close"));
  52   layout = new QGridLayout;
  53
  54   show_all = new QCheckBox;
  55   show_all->setChecked(false);
  56   show_all_label = new QLabel(_("Show All Cities"));
  57   show_all_label->setAlignment(Qt::AlignLeft);
  58   hb = new QHBoxLayout;
  59   hb->addWidget(show_all);
  60   hb->addWidget(show_all_label, Qt::AlignLeft);
  61
  62   goto_tab->setProperty("showGrid", "false");
  63   goto_tab->setSelectionBehavior(QAbstractItemView::SelectRows);
  64   goto_tab->setEditTriggers(QAbstractItemView::NoEditTriggers);
  65   goto_tab->verticalHeader()->setVisible(false);
  66   goto_tab->horizontalHeader()->setVisible(true);
  67   goto_tab->setSelectionMode(QAbstractItemView::SingleSelection);
  68   goto_tab->setColumnCount(3);
  69   goto_tab->setHorizontalHeaderLabels(headers_lst);
  70   goto_tab->setSortingEnabled(true);
  71   goto_tab->horizontalHeader()->setSectionResizeMode(
  72                                              QHeaderView::ResizeToContents);
  73
  74   layout->addWidget(goto_tab, 0, 0, 4, 4);
  75   layout->addItem(hb, 4, 0, 1, 2);
  76   layout->addWidget(goto_city, 5, 0, 1, 1);
  77   layout->addWidget(airlift_city, 5, 1, 1, 1);
  78   layout->addWidget(close_but, 5, 3, 1, 1);
  79
  80   setFixedWidth(goto_tab->horizontalHeader()->width());
  81   connect(close_but, SIGNAL(clicked()), SLOT(close_dlg()));
  82   connect(goto_city, SIGNAL(clicked()), SLOT(go_to_city()));
  83   connect(airlift_city, SIGNAL(clicked()), SLOT(airlift_to()));
  84   connect(show_all, SIGNAL(stateChanged(int)),
  85           SLOT(checkbox_changed(int)));
  86   connect(goto_tab->selectionModel(),
  87           SIGNAL(selectionChanged(const QItemSelection &,
  88                                   const QItemSelection &)),
  89           SLOT(item_selected(const QItemSelection &,
  90                              const QItemSelection &)));
  91
  92   setLayout(layout);
  93   original_tile = NULL;
  94   setFocus();
  95 }
  96
  97 /***************************************************************************
  98   Sets variables which must be destroyed later
  99 ***************************************************************************/
 100 void goto_dialog::init()
 101 {
 102   if (original_tile) {
 103     tile_virtual_destroy(original_tile);
 104   }
 105   original_tile = tile_virtual_new(get_center_tile_mapcanvas());
 106 }
 107
 108 /***************************************************************************
 109   Destructor for goto dialog
 110 ***************************************************************************/
 111 goto_dialog::~goto_dialog()
 112 {
 113   if (original_tile) {
 114     tile_virtual_destroy(original_tile);
 115   }
 116 }
 117
 118 /***************************************************************************
 119   Slot for checkbox 'all nations'
 120 ***************************************************************************/
 121 void goto_dialog::checkbox_changed(int state)
 122 {
 123   update_dlg();
 124 }
 125
 126 /***************************************************************************
 127   User has chosen some city on table
 128 ***************************************************************************/
 129 void goto_dialog::item_selected(const QItemSelection &sl,
 130                                 const QItemSelection &ds)
 131 {
 132   int i;
 133   int city_id;
 134   QModelIndex index;
 135   QModelIndexList indexes = sl.indexes();
 136   QTableWidgetItem *item;
 137   struct city *dest;
 138   bool can_airlift;
 139
 140   if (indexes.isEmpty()) {
 141     return;
 142   }
 143   index = indexes.at(0);
 144   i = index.row();
 145   item = goto_tab->item(i, 0);
 146   city_id = item->data(Qt::UserRole).toInt();
 147   dest = game_city_by_number(city_id);
 148   center_tile_mapcanvas(city_tile(dest));
 149   can_airlift = false;
 150   unit_list_iterate(get_units_in_focus(), punit) {
 151     if (unit_can_airlift_to(punit, dest)) {
 152       can_airlift = true;
 153       break;
 154     }
 155   } unit_list_iterate_end;
 156
 157   if (can_airlift) {
 158     airlift_city->setEnabled(true);
 159   } else {
 160     airlift_city->setDisabled(true);
 161   }
 162
 163 }
 164
 165 /***************************************************************************
 166   Sorts dialog by default column (0)
 167 ***************************************************************************/
 168 void goto_dialog::sort_def()
 169 {
 170   goto_tab->sortByColumn(0, Qt::AscendingOrder);
 171 }
 172
 173 /***************************************************************************
 174   Shows and moves widget
 175 ***************************************************************************/
 176 void goto_dialog::show_me()
 177 {
 178   QPoint p, final_p;
 179   p = QCursor::pos();
 180   p = parentWidget()->mapFromGlobal(p);
 181   final_p.setX(p.x());
 182   final_p.setY(p.y());
 183   if (p.x() + width() > parentWidget()->width()) {
 184     final_p.setX(parentWidget()->width() - width());
 185   }
 186   if (p.y() - height() < 0) {
 187     final_p.setY(height());
 188   }
 189   move(final_p.x(), final_p.y() - height());
 190   show();
 191 }
 192
 193 /***************************************************************************
 194   Updates table in widget
 195 ***************************************************************************/
 196 void goto_dialog::update_dlg()
 197 {
 198   goto_tab->clearContents();
 199   goto_tab->setRowCount(0);
 200   goto_tab->setSortingEnabled(false);
 201   if (show_all->isChecked()) {
 202     players_iterate(pplayer) {
 203       fill_tab(pplayer);
 204     } players_iterate_end;
 205   } else {
 206     fill_tab(client_player());
 207   }
 208   goto_tab->setSortingEnabled(true);
 209   goto_tab->horizontalHeader()->setStretchLastSection(false);
 210   goto_tab->resizeRowsToContents();
 211   goto_tab->horizontalHeader()->setStretchLastSection(true);
 212 }
 213
 214 /***************************************************************************
 215   Helper for function for filling table
 216 ***************************************************************************/
 217 void goto_dialog::fill_tab(player *pplayer)
 218 {
 219   int i;
 220
 221   QString str;
 222   const char *at;
 223   QFont f = QApplication::font();
 224   QFontMetrics fm(f);
 225   int h;
 226   struct sprite *sprite;
 227   QPixmap *pix;
 228   QPixmap pix_scaled;
 229   QTableWidgetItem *item;
 230
 231
 232   h = fm.height() + 6;
 233   i = goto_tab->rowCount();
 234   city_list_iterate(pplayer->cities, pcity) {
 235     goto_tab->insertRow(i);
 236     for (int j = 0; j < 3; j++) {
 237       item = new QTableWidgetItem;
 238       switch (j) {
 239       case 0:
 240         str = city_name_get(pcity);
 241         break;
 242       case 1:
 243         sprite = get_nation_flag_sprite(tileset, nation_of_player(pplayer));
 244         if (sprite != NULL) {
 245           pix = sprite->pm;
 246           pix_scaled = pix->scaledToHeight(h);
 247           item->setData(Qt::DecorationRole, pix_scaled);
 248         }
 249         str = nation_adjective_translation(nation_of_player(pplayer));
 250         break;
 251       case 2:
 252         at = get_airlift_text(get_units_in_focus(), pcity);
 253         if (at == NULL) {
 254           str = "-";
 255         } else {
 256           str = at;
 257         }
 258         item->setTextAlignment(Qt::AlignHCenter);
 259         break;
 260       }
 261       item->setText(str);
 262       item->setData(Qt::UserRole, pcity->id);
 263       goto_tab->setItem(i, j, item);
 264     }
 265     i++;
 266   } city_list_iterate_end;
 267 }
 268
 269 /***************************************************************************
 270   Slot for airlifting unit
 271 ***************************************************************************/
 272 void goto_dialog::airlift_to()
 273 {
 274   struct city *pdest;
 275
 276   if (goto_tab->currentRow() == -1) {
 277     return;
 278   }
 279   pdest = game_city_by_number(goto_tab->item(goto_tab->currentRow(),
 280                                              0)->data(Qt::UserRole).toInt());
 281   if (pdest) {
 282     unit_list_iterate(get_units_in_focus(), punit) {
 283       if (unit_can_airlift_to(punit, pdest)) {
 284         request_unit_airlift(punit, pdest);
 285       }
 286     } unit_list_iterate_end;
 287   }
 288 }
 289
 290 /***************************************************************************
 291   Slot for goto for city
 292 ***************************************************************************/
 293 void goto_dialog::go_to_city()
 294 {
 295   struct city *pdest;
 296
 297   if (goto_tab->currentRow() == -1) {
 298     return;
 299   }
 300
 301   pdest = game_city_by_number(goto_tab->item(goto_tab->currentRow(),
 302                                              0)->data(Qt::UserRole).toInt());
 303   if (pdest) {
 304     unit_list_iterate(get_units_in_focus(), punit) {
 305       send_goto_tile(punit, pdest->tile);
 306     } unit_list_iterate_end;
 307   }
 308 }
 309
 310 /***************************************************************************
 311   Slot for hiding dialog
 312 ***************************************************************************/
 313 void goto_dialog::close_dlg()
 314 {
 315   center_tile_mapcanvas(original_tile);
 316   hide();
 317 }
 318
 319 /***************************************************************************
 320   Paints rectangles for goto_dialog
 321 ***************************************************************************/
 322 void goto_dialog::paint(QPainter *painter, QPaintEvent *event)
 323 {
 324   painter->setBrush(QColor(0, 0, 30, 85));
 325   painter->drawRect(0, 0, width(), height());
 326   painter->setBrush(QColor(0, 0, 0, 85));
 327   painter->drawRect(5, 5, width() - 10, height() - 10);
 328 }
 329
 330 /***************************************************************************
 331   Paint event for goto_dialog
 332 ***************************************************************************/
 333 void goto_dialog::paintEvent(QPaintEvent *event)
 334 {
 335   QPainter painter;
 336
 337   painter.begin(this);
 338   paint(&painter, event);
 339   painter.end();
 340 }
 341
 342 /**************************************************************************
 343   Popup a dialog to have the focus unit goto to a city.
 344 **************************************************************************/
 345 void popup_goto_dialog(void)
 346 {
 347   if (C_S_RUNNING != client_state()) {
 348     return;
 349   }
 350   if (get_num_units_in_focus() == 0) {
 351     return;
 352   }
 353   if (!client_has_player()) {
 354     return;
 355   }
 356
 357   if (gui()->gtd != NULL) {
 358     gui()->gtd->init();
 359     gui()->gtd->update_dlg();
 360     gui()->gtd->sort_def();
 361     gui()->gtd->show_me();
 362   }
 363 }