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/*
* The ManaPlus Client
* Copyright (C) 2008-2009 The Mana World Development Team
* Copyright (C) 2009-2010 The Mana Developers
* Copyright (C) 2011-2012 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 TABLE_MODEL_H
#define TABLE_MODEL_H
#include <set>
#include <vector>
#include "localconsts.h"
namespace gcn
{
class Widget;
}
class TableModelListener
{
public:
/**
* Must be invoked by the TableModel whenever a global change is about to
* occur or has occurred (e.g., when a row or column is being removed or
* added).
*
* This method is triggered twice, once before and once after the update.
*
* \param completed whether we are signalling the end of the update
*/
virtual void modelUpdated(bool completed) = 0;
virtual ~TableModelListener()
{ }
};
/**
* A model for a regular table of widgets.
*/
class TableModel
{
public:
virtual ~TableModel()
{ }
/**
* Determines the number of rows (lines) in the table
*/
virtual int getRows() const A_WARN_UNUSED = 0;
/**
* Determines the number of columns in each row
*/
virtual int getColumns() const A_WARN_UNUSED = 0;
/**
* Determines the height for each row
*/
virtual int getRowHeight() const A_WARN_UNUSED = 0;
/**
* Determines the width of each individual column
*/
virtual int getColumnWidth(int index) const A_WARN_UNUSED = 0;
/**
* Retrieves the widget stored at the specified location within the table.
*/
virtual gcn::Widget *getElementAt(int row, int column)
const A_WARN_UNUSED = 0;
virtual void installListener(TableModelListener *const listener);
virtual void removeListener(TableModelListener *const listener);
protected:
/**
* Tells all listeners that the table is about to see an update
*/
virtual void signalBeforeUpdate();
/**
* Tells all listeners that the table has seen an update
*/
virtual void signalAfterUpdate();
private:
std::set<TableModelListener *> listeners;
};
class StaticTableModel final : public TableModel
{
public:
StaticTableModel(const int width, const int height);
A_DELETE_COPY(StaticTableModel)
virtual ~StaticTableModel();
/**
* Inserts a widget into the table model.
* The model is resized to accomodate the widget's width and height,
* unless column width / row height have been fixed.
*/
virtual void set(const int row, const int column,
gcn::Widget *const widget);
/**
* Fixes the column width for a given column; this overrides dynamic width
* inference.
*
* Semantics are undefined for width 0.
*/
virtual void fixColumnWidth(const int column, const int width);
/**
* Fixes the row height; this overrides dynamic height inference.
*
* Semantics are undefined for width 0.
*/
virtual void fixRowHeight(const int height);
/**
* Resizes the table model
*/
virtual void resize();
virtual int getRows() const A_WARN_UNUSED;
virtual int getColumns() const A_WARN_UNUSED;
virtual int getRowHeight() const override A_WARN_UNUSED;
virtual int getWidth() const A_WARN_UNUSED;
virtual int getHeight() const A_WARN_UNUSED;
virtual int getColumnWidth(int index) const A_WARN_UNUSED;
virtual gcn::Widget *getElementAt(int row, int column)
const override A_WARN_UNUSED;
protected:
int mRows, mColumns;
int mHeight;
std::vector<gcn::Widget *> mTableModel;
std::vector<int> mWidths;
};
#endif // TABLE_MODEL_H
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