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/*
* The ManaPlus Client
* Copyright (C) 2009 The Mana World Development Team
* Copyright (C) 2009-2010 The Mana Developers
* Copyright (C) 2011 The ManaPlus Developers
*
* This file is part of The ManaPlus 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 LAYOUTHELPER_H
#define LAYOUTHELPER_H
#include "gui/widgets/layout.h"
#include "guichan/widgetlistener.hpp"
#ifdef __GNUC__
#define _UNUSED_ __attribute__ ((unused))
#else
#define _UNUSED_
#endif
/**
* A helper class for adding a layout to a Guichan container widget. The layout
* will register itself as a widget listener and relayout the widgets in the
* container dynamically on resize.
*/
class LayoutHelper : public gcn::WidgetListener
{
public:
/**
* Constructor.
*/
LayoutHelper(gcn::Container *container);
/**
* Destructor.
*/
~LayoutHelper();
/**
* Gets the layout handler.
*/
Layout &getLayout();
/**
* Computes the position of the widgets according to the current
* layout. Resizes the managed container so that the layout fits.
*
* @note This function is meant to be called with fixed-size
* containers.
*
* @param w if non-zero, force the container to this width.
* @param h if non-zero, force the container to this height.
*/
void reflowLayout(int w = 0, int h = 0);
/**
* Adds a widget to the container and sets it at given cell.
*/
LayoutCell &place(int x, int y, gcn::Widget *, int w = 1, int h = 1);
/**
* Returns a proxy for adding widgets in an inner table of the layout.
*/
ContainerPlacer getPlacer(int x, int y);
/**
* Called whenever the managed container changes size.
*/
void widgetResized(const gcn::Event &event);
private:
Layout mLayout; /**< Layout handler */
gcn::Container *mContainer; /**< Managed container */
};
#endif // LAYOUTHELPER_H
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