oasisconsolesystem.h

使用stl技术,(还没看,是听说的)

/******************************************************************************
 * This source file is part of Bad Camel Gaming
 * Copyright (C) 2003  Zephie Greyvenstein
 * See Readme.html for acknowledgements
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *****************************************************************************/

/******************************************************************************
 * FILENAME    : oasisConsoleSystem.h
 * DESCRIPTION : The console system
 * AUTHOR      : Zephie Greyvenstein
 *****************************************************************************/

/// Avoid double inclusion
#ifndef __CONSOLESYSTEM_H__
#define __CONSOLESYSTEM_H__

/// Include the common headers
#include "oasisCommon.h"
#include "oasisFrameListener.h"
#include "oasisKeyListener.h"
#include "oasisSystem.h"
#include "oasisSingleton.h"

//////////////////////// Forward declare Ogre stuff
namespace Ogre { 
  class Overlay;
  class GuiElement;
  class TextAreaGuiElement; 
};

namespace Oasis {
  /// The console system for in-game scripting
  class _oasisExport consoleSystem : public frameListener,	            
                                     public keyListener,
                                     public system,
                                     public singleton< consoleSystem > {
  public:
    /// The console states
    enum ConsoleState {
      /// Open state
      CS_OPEN        = 0,
      /// Opening state
      CS_OPENING     = 1,
      /// Closed state
      CS_CLOSED      = 2,
      /// Closing state
      CS_CLOSING     =3
    };
       
    /// Constructor
    consoleSystem( );
    /// Deconstructor
    virtual ~consoleSystem( );
   
    /// Get singleton
    static consoleSystem &get( void );
    /// Get singleton pointer
    static consoleSystem *getPtr( void );

    /// Reset this system
    void reset( void );
    /// Update this system
    void update( real time );
       
    /// Clear the console
    void clear( void );
    /// Get the lines count
    const uint8 getLineCount( void ) const;
    /// Open console
    void open( void );
    /// Close console
    void close( void );
    /// Set a line's text
    void setLineText( uint8 line, const string &text );
    /// Get a line's text
    const string &getLineText( uint8 line ) const;
    /// Write something on the console
    void write( const string &text );
    
  private:    
    /// Handle to the console overlay
    Ogre::Overlay *consoleOverlay;
    /// State of the console
    ConsoleState state; 
    /// Cursor position
    uint8 cursorPos;
    
    /// Listener event for frame started
    bool frameStarted( real time );
   
    /// When the console is open, it processes key events
    void keyClicked( KeyCode key, char keyChar ) {}
    /// When the console is open, it processes key events
    void keyPressed( KeyCode key, char keyChar );
    /// When the console is open, it processes key events
    void keyReleased( KeyCode key, char keyChar );
    
    /// Bump text up one line
    void _bumpText( void );

    /// The command string
    string command;
    /// The last command string
    string lastCommand;
    /// Records if we are using the buffer
    bool pressedUp;

    /// A vector of textarea's
    typedef std::vector< Ogre::TextAreaGuiElement* > textAreaVector;
    /// The text lines
    textAreaVector textLines;
          
    /// !!! Hack until I've written gui system
    Ogre::Overlay *_getOverlay( const string &overlay );  
    /// !!! Hack until I've written gui system
    Ogre::TextAreaGuiElement *_createTextArea( const string &name );
    /// !!! Hack until I've written gui system
    void _addGuiElement( const string &parent, Ogre::GuiElement *child );
  };
};

#endif