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// This file may be redistributed and modified only under the terms of
// the GNU General Public License (See COPYING for details).
// Copyright (C) 2001 - 2004 Simon Goodall
// $Id: StateManager.h,v 1.6 2004/04/26 17:37:51 simon Exp $
#ifndef SEAR_RENDER_STATEMANAGER_H
#define SEAR_RENDER_STATEMANAGER_H 1
#include <string>
#include <map>
#include <vector>
#include <sigc++/object_slot.h>
#include "interfaces/ConsoleObject.h"
#include "RenderSystem.h"
namespace varconf {
class Config;
}
namespace Sear {
class Console;
// This would be better obtained elsewhere ie from a query to
// OpenGL, but simpler this way
#define MAX_UNITS 2
typedef struct {
std::string state;
bool alpha_test;
bool blend;
bool lighting;
bool two_sided_lighting;
bool textures[MAX_UNITS];
bool colour_material;
bool depth_test;
bool cull_face;
bool cull_face_cw;
bool stencil;
bool fog;
bool rescale_normals;
float alpha_value;
int alpha_function;
int blend_src_function;
int blend_dest_function;
} StateProperties;
//typedef int StateID;
typedef std::map<std::string, StateID> StateNameMap;
typedef std::vector<std::string> NameStateVector;
typedef std::vector<StateProperties*> StateVector;
typedef std::vector<std::vector<unsigned int> > StateChangeVector;
class StateManager : public SigC::Object, public ConsoleObject {
public:
StateManager();
~StateManager();
void init();
void shutdown();
void readFiles(const std::string &);
StateID getState(const std::string &state_name) const;
void stateChange(StateID state);
// std::map<std::string, StateProperties*> getMap() const { return _state_properties; }
// StateProperties *getStateProperties(const std::string &state) {
// StateProperties *sp = _state_properties[state];
// return ((sp) ? (sp) : (_state_properties["default"]));
// }
void registerCommands(Console *console);
void runCommand(const std::string &command, const std::string &arguments);
StateID getCurrentState() const { return _current_state; }
void invalidate();
private:
void varconf_callback(const std::string §ion, const std::string &key, varconf::Config &config);
void varconf_error_callback(const char *message);
int getAlphaFunction(const std::string &alpha_function);
int getBlendFunction(const std::string &blend_function);
void buildStateChange(unsigned int &list, StateProperties *previous_state, StateProperties *next_state);
bool _initialised;
StateVector _states; ///< This stores all the state records
StateChangeVector _state_change_vector; ///< This keeps a display list for every state change
StateNameMap _state_name_map; ///< This maps a state name to its id
NameStateVector _name_state_vector; ///< This will map a stateid back to its name
StateID _current_state;
unsigned int _state_counter;
};
} /* namespace Sear */
#endif /* SEAR_RENDER_STATEMANAGER_H */
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