/* * 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> 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 = 0; /** * Determines the number of columns in each row */ virtual int getColumns() const = 0; /** * Determines the height for each row */ virtual int getRowHeight() const = 0; /** * Determines the width of each individual column */ virtual int getColumnWidth(int index) const = 0; /** * Retrieves the widget stored at the specified location within the table. */ virtual gcn::Widget *getElementAt(int row, int column) const = 0; virtual void installListener(TableModelListener *listener); virtual void removeListener(TableModelListener *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 : public TableModel { public: StaticTableModel(int width, int height); 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(int row, int column, gcn::Widget *widget); /** * Fixes the column width for a given column; this overrides dynamic width * inference. * * Semantics are undefined for width 0. */ virtual void fixColumnWidth(int column, int width); /** * Fixes the row height; this overrides dynamic height inference. * * Semantics are undefined for width 0. */ virtual void fixRowHeight(int height); /** * Resizes the table model */ virtual void resize(); virtual int getRows() const; virtual int getColumns() const; virtual int getRowHeight() const; virtual int getWidth() const; virtual int getHeight() const; virtual int getColumnWidth(int index) const; virtual gcn::Widget *getElementAt(int row, int column) const; protected: int mRows, mColumns; int mHeight; std::vector<gcn::Widget *> mTableModel; std::vector<int> mWidths; }; #endif // TABLE_MODEL_H