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diff --git a/atlantik/libatlantic/trade.h b/atlantik/libatlantic/trade.h
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+// Copyright (c) 2002-2003 Rob Kaper <cap@capsi.com>
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License version 2.1 as published by the Free Software Foundation.
+//
+// This library 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
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this library; see the file COPYING.LIB.  If not, write to
+// the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+// Boston, MA 02110-1301, USA.
+
+#ifndef LIBATLANTIC_TRADE_H
+#define LIBATLANTIC_TRADE_H
+
+#include <qobject.h>
+#include <qstring.h>
+#include <qptrlist.h>
+
+#include "libatlantic_export.h"
+#include "player.h"
+
+class Player;
+class Trade;
+class Estate;
+
+class LIBATLANTIC_EXPORT TradeItem : public QObject
+{
+Q_OBJECT
+
+public:
+	TradeItem(Trade *trade, Player *from, Player *to);
+	virtual ~TradeItem() { }
+	
+	Player *from() { return mFrom; }
+	Player *to() { return mTo; }
+	void setTo(Player *p) { mTo=p; }
+	Trade *trade() { return mTrade; }
+
+	/**
+	 * how to visualize this
+	 **/
+	virtual QString text() const=0;
+
+signals:
+	void changed(TradeItem *);
+
+private slots:
+	void playerChanged();
+
+private:
+	Player *mFrom, *mTo;
+	Trade *mTrade;
+};
+
+class LIBATLANTIC_EXPORT TradeEstate : public TradeItem
+{
+Q_OBJECT
+
+public:
+	TradeEstate(Estate *estate, Trade *trade, Player *to);
+
+	Estate *estate() { return mEstate; }
+	
+	virtual QString text() const;
+
+signals:
+	void updateEstate(Trade *trade, Estate *estate, Player *player);
+	void updateMoney(Trade *trade, unsigned int money, Player *from, Player *to);
+
+private:
+	Estate *mEstate;
+};
+
+class LIBATLANTIC_EXPORT TradeMoney : public TradeItem
+{
+Q_OBJECT
+
+public:
+	TradeMoney(unsigned int money, Trade *trade, Player *from, Player *to);
+
+	unsigned int money() const { return m_money; }
+	void setMoney(unsigned int money);
+	
+	virtual QString text() const;
+
+signals:
+	void changed(TradeItem *tradeItem);
+
+private:
+	unsigned int m_money;
+};
+
+
+class LIBATLANTIC_EXPORT Trade : public QObject
+{
+Q_OBJECT
+
+public:
+	Trade(int tradeId);
+	int tradeId() { return m_tradeId; }
+
+	void setRevision(int revision);
+	int revision() const;
+
+	void addPlayer(Player *player);
+	void removePlayer(Player *player);
+	
+	unsigned int count( bool acceptOnly );
+
+	bool isRejected() { return m_rejected; }
+	
+private slots:	
+	/**
+	 * tell someone that this changed
+	 **/
+//	void changed(TradeItem *i) { emit itemChanged(i); }
+
+public:
+	void update(bool force = false);
+	void updateEstate(Estate *estate, Player *player);
+	void updateMoney(unsigned int money, Player *from, Player *to);
+	void updateAccept(Player *player, bool accept);
+	void reject(Player *player);
+	
+signals:
+	void changed(Trade *);
+	void rejected(Player *player);
+
+	void itemAdded(TradeItem *);
+	void itemRemoved(TradeItem *);
+
+	void updateEstate(Trade *trade, Estate *estate, Player *to);
+	void updateMoney(Trade *trade, unsigned int money, Player *from, Player *to);
+	void reject(Trade *trade);
+	void accept(Trade *trade);
+
+private:
+	bool m_changed, m_rejected;
+	int m_tradeId, m_revision;
+
+	QPtrList<Player> mPlayers;
+	QMap<Player *, bool> m_playerAcceptMap;
+	
+	QPtrList<TradeItem> mTradeItems;
+};
+
+#endif