grid.h

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//            Copyright (C) 2004-2007 by The Allacrost Project
//                         All Rights Reserved
//
// This code is licensed under the GNU GPL version 2. It is free software 
// and you may modify it and/or redistribute it under the terms of this license.
// See http://www.gnu.org/copyleft/gpl.html for details.

/*!****************************************************************************
 * \file    grid.h
 * \author  Philip Vorsilak, gorzuate@allacrost.org
 * \brief   Header file for editor's grid, used for the OpenGL map portion
 *          where tiles are painted, edited, etc.
 *****************************************************************************/

#ifndef __GRID_HEADER__
#define __GRID_HEADER__

#include "utils.h"
#include "defs.h"
#include "script.h"
#include "video.h"

#include "tileset.h"

#include <QGLWidget>
#include <QStringList>

namespace hoa_editor
{

enum LAYER_TYPE
{
  INVALID_LAYER = -1,
  LOWER_LAYER   = 0,
  MIDDLE_LAYER  = 1,
  UPPER_LAYER   = 2,
  TOTAL_LAYER   = 3
};

LAYER_TYPE& operator++(LAYER_TYPE& value, int dummy);

class Grid: public QGLWidget
{
  Q_OBJECT     // macro needed to use QT's slots and signals
  
  public:
    Grid(QWidget *parent = 0, const QString &name = QString("Untitled"),
      int width = 0, int height = 0); // constructor
    ~Grid();                            // destructor

    bool GetChanged() const { return _changed; }
    void SetChanged(bool value);
    QString GetFileName() const { return _file_name; }
    void    SetFileName(QString filename); // sets the map's file name
    int  GetHeight() const { return _height; }
    int  GetWidth() const {return _width; }
    void SetHeight(int height);         // sets the map's height in tiles (rows)
    void SetWidth(int width);           // sets the map's width in tiles (columns)
    void SetLLOn(bool value);           // sets lower layer on/off
    void SetMLOn(bool value);           // sets middle layer on/off
    void SetULOn(bool value);           // sets upper layer on/off
    void SetGridOn(bool value);         // sets grid on/off

    std::vector<int32>& GetLayer(LAYER_TYPE layer);

    void SetMusic(const QString& music_file);

    const QString& GetMusic() const;

    void LoadMap();

    void SaveMap();

    QStringList tileset_names;
    std::vector<Tileset*> tilesets;

  protected:
    void initializeGL();

    void paintGL();

    void resizeGL(int w, int h);

  private:
    QString _file_name;
    int _height;
    int _width;

    bool _changed;
    bool _grid_on;
    bool _ll_on;
    bool _ml_on;
    bool _ul_on;

    std::vector<int32> _lower_layer;
    std::vector<int32> _middle_layer;
    std::vector<int32> _upper_layer;

    QString _music_file;
}; // class Grid

} // namespace hoa_editor

#endif
// __GRID_HEADER__

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