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/*
* The Mana World
* Copyright (C) 2004-2010 The Mana World Development Team
*
* This file is part of The Mana World.
*
* 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
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef BUY_H
#define BUY_H
#include "guichanfwd.h"
#include "gui/widgets/window.h"
#include <guichan/actionlistener.hpp>
#include <guichan/selectionlistener.hpp>
class ShopItems;
class ShopListBox;
class ListBox;
/**
* The buy dialog.
*
* \ingroup Interface
*/
class BuyDialog : public Window, public gcn::ActionListener,
public gcn::SelectionListener
{
public:
/**
* Constructor.
*
* @see Window::Window
*/
BuyDialog(int npcId);
/**
* Destructor
*/
~BuyDialog();
/**
* Resets the dialog, clearing shop inventory.
*/
void reset();
/**
* Sets the amount of available money.
*/
void setMoney(int amount);
/**
* Adds an item to the shop inventory.
*/
void addItem(int id, int amount, int price);
/**
* Called when receiving actions from the widgets.
*/
void action(const gcn::ActionEvent &event);
/**
* Returns the number of items in the shop inventory.
*/
int getNumberOfElements();
/**
* Updates the labels according to the selected item.
*/
void valueChanged(const gcn::SelectionEvent &event);
/**
* Returns the name of item number i in the shop inventory.
*/
std::string getElementAt(int i);
/**
* Updates the state of buttons and labels.
*/
void updateButtonsAndLabels();
/**
* Sets the visibility of this window.
*/
void setVisible(bool visible);
/**
* Returns true if any instances exist.
*/
static bool isActive() { return instances.size() > 0; }
/**
* Closes all instances.
*/
static void closeAll();
private:
typedef std::list<BuyDialog*> DialogList;
static DialogList instances;
int mNpcId;
gcn::Button *mBuyButton;
gcn::Button *mQuitButton;
gcn::Button *mAddMaxButton;
gcn::Button *mIncreaseButton;
gcn::Button *mDecreaseButton;
ShopListBox *mShopItemList;
gcn::ScrollArea *mScrollArea;
gcn::Label *mMoneyLabel;
gcn::Label *mQuantityLabel;
gcn::Slider *mSlider;
ShopItems *mShopItems;
int mMoney;
int mAmountItems;
int mMaxItems;
};
#endif
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