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/* 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
 * 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/PopUpWidget.h,v 2005/10/18 02:11:18 sev Exp $


#include "gui/widget.h"
#include "common/str.h"
#include "common/array.h"

namespace GUI {

enum {
      kPopUpItemSelectedCmd   = 'POPs'

 * Popup or dropdown widget which, when clicked, "pop up" a list of items and
 * lets the user pick on of them.
 * Implementation wise, when the user selects an item, then a kPopUpItemSelectedCmd
 * is broadcast, with data being equal to the tag value of the selected entry.
00041 class PopUpWidget : public Widget, public CommandSender {
      friend class PopUpDialog;
      typedef Common::String String;

      struct Entry {
            String      name;
            uint32      tag;
      typedef Common::Array<Entry> EntryList;
      const WidgetSize        _ws;
      EntryList         _entries;
      int                     _selectedItem;

      String                  _label;
      uint              _labelWidth;

      PopUpWidget(GuiObject *boss, int x, int y, int w, int h, const String &label, uint labelWidth = 0, WidgetSize ws = kDefaultWidgetSize);

      void handleMouseDown(int x, int y, int button, int clickCount);

      void appendEntry(const String &entry, uint32 tag = (uint32)-1);
      void clearEntries();

      /** Select the entry at the given index. */
      void setSelected(int item);

      /** Select the first entry matching the given tag. */
      void setSelectedTag(uint32 tag);

      int getSelected() const                               { return _selectedItem; }
      uint32 getSelectedTag() const                   { return (_selectedItem >= 0) ? _entries[_selectedItem].tag : (uint32)-1; }
      const String& getSelectedString() const         { return (_selectedItem >= 0) ? _entries[_selectedItem].name : String::emptyString; }

      void drawWidget(bool hilite);

} // End of namespace GUI


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