context.h

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//--- < CONTEXT.H > -------------| ViewGraph - A Flexible Graph view Framework |
//
// This class implements context storage for
// scene nodes. Derive a Camera, Window or Scene
// from context to present the scene node programmer
// with context storage.
//
// Programmers: use context storage to keep scene 
// object state you might need later. For example,
// active leaf nodes store hover state to paint 
// themselves differently when mouse is over them.
// You may associate data with a camera, window, or
// the whole scene. 
//
//
// $Author: botik32 $
// $Revision: 1.1.1.1 $
// $Date: 2004/03/26 10:50:21 $
//-----------------------------------------------------------------------------/

#ifndef CONTEXT_H
#define CONTEXT_H

#include <map>

class BaseSceneNode;

class Context
{
protected:
        std::map< BaseSceneNode*, void* > storage;
public:
        void* register_data( BaseSceneNode*, void * );
        void* remove_data( BaseSceneNode* );
        void* get_data( BaseSceneNode * );

        Context(){};
        ~Context();
};

#endif

/// $Log: context.h,v $
/// Revision 1.1.1.1  2004/03/26 10:50:21  botik32
/// Initial release
///
/// Revision 1.1.1.1  2004/03/26 08:53:33  botik
/// initial import
///
///
/// Revision 1.1  2003/12/02 14:39:37  botik
/// Changed the repaint strategy to always repaint the scene
/// Added Context class to handle context-related data for
/// scene nodes
/// Added get_surfacerect() to ScrollableView
/// Camera, Scene and GraphWindow now inherit from Context
/// Changed activeleaf to use Scene context to store hover
/// status
///

---