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chooser.cpp

/* ScummVM - Scumm Interpreter
 * Copyright (C) 2002-2005 The ScummVM project
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * $Header: /cvsroot/scummvm/scummvm/gui/chooser.cpp,v 1.19.2.1 2005/10/18 02:11:18 sev Exp $
 */

#include "common/stdafx.h"
#include "common/system.h"
#include "gui/chooser.h"
#include "gui/newgui.h"
#include "gui/ListWidget.h"

namespace GUI {

enum {
      kChooseCmd = 'Chos'
};

ChooserDialog::ChooserDialog(const String &title, const String &buttonLabel, int height)
      : Dialog(8, (200 - height) / 2, 320 - 2 * 8, height) {

      const int screenW = g_system->getOverlayWidth();
      const int screenH = g_system->getOverlayHeight();

      GUI::WidgetSize ws;
      int buttonWidth, buttonHeight;

      if (screenW >= 400 && screenH >= 300) {
            ws = GUI::kBigWidgetSize;
            buttonHeight = kBigButtonHeight;
            buttonWidth = kBigButtonWidth;
      } else {
            ws = GUI::kNormalWidgetSize;
            buttonHeight = kButtonHeight;
            buttonWidth = kButtonWidth;
      }

      // FIXME: This is an ugly hack. The 'height' parameter assumes a 200
      // pixel tall screen, so try to scale that to something sensible.

      _h = (screenH * height) / 200;
      _w = screenW - 2 * 8;

      _x = (screenW - _w) / 2;
      _y = (screenH - _h) / 2;

      int yoffset = 6;

      // Headline
      new StaticTextWidget(this, 10, 6, _w - 2 * 10, kLineHeight, title, kTextAlignCenter, ws);

      yoffset += kLineHeight + 2;

      // Add choice list
      // HACK: Subtracting -12 from the height makes the list look good when
      // it's used to list savegames in the 320x200 version of the GUI.
      _list = new ListWidget(this, 10, yoffset, _w - 2 * 10, _h - yoffset - buttonHeight - 12, ws);
      _list->setNumberingMode(kListNumberingOff);

      // Buttons
      addButton(this, _w - 2 * (buttonWidth + 10), _h - buttonHeight - 8, "Cancel", kCloseCmd, 0, ws);
      _chooseButton = addButton(this, _w - (buttonWidth + 10), _h - buttonHeight - 8, buttonLabel, kChooseCmd, 0, ws);
      _chooseButton->setEnabled(false);
}

void ChooserDialog::setList(const StringList& list) {
      _list->setList(list);
}

void ChooserDialog::handleCommand(CommandSender *sender, uint32 cmd, uint32 data) {
      int item = _list->getSelected();
      switch (cmd) {
      case kChooseCmd:
      case kListItemDoubleClickedCmd:
            _list->endEditMode();
            setResult(item);
            close();
            break;
      case kListSelectionChangedCmd:
            _chooseButton->setEnabled(item >= 0);
            _chooseButton->draw();
            break;
      case kCloseCmd:
            setResult(-1);
      default:
            Dialog::handleCommand(sender, cmd, data);
      }
}

} // End of namespace GUI

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