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+/*
+ * The Mana Client
+ * Copyright (C) 2004-2009 The Mana World Development Team
+ * Copyright (C) 2009-2010 The Mana Developers
+ *
+ * This file is part of The Mana Client.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef BUYSELL_H
+#define BUYSELL_H
+
+#include "gui/widgets/window.h"
+
+#include <guichan/actionlistener.hpp>
+
+/**
+ * A dialog to choose between buying or selling at a shop.
+ *
+ * \ingroup Interface
+ */
+class BuySellDialog : public Window, public gcn::ActionListener
+{
+ public:
+ /**
+ * Constructor. The action listener passed will receive "sell", "buy"
+ * or "cancel" events when the respective buttons are pressed.
+ *
+ * @see Window::Window
+ */
+ BuySellDialog(int npcId);
+
+ BuySellDialog(std::string nick);
+
+ virtual ~BuySellDialog();
+
+ void init();
+
+ void setVisible(bool visible);
+
+ /**
+ * Called when receiving actions from the widgets.
+ */
+ void action(const gcn::ActionEvent &event);
+
+ /**
+ * Returns true if any instances exist.
+ */
+ static bool isActive()
+ { return !instances.empty(); }
+
+ /**
+ * Closes all instances.
+ */
+ static void closeAll();
+
+ private:
+ typedef std::list<BuySellDialog*> DialogList;
+ static DialogList instances;
+
+ int mNpcId;
+ std::string mNick;
+ gcn::Button *mBuyButton;
+};
+
+#endif