leocad/common/message.h
2011-09-07 21:06:51 +00:00

40 lines
658 B
C++

#ifndef _MESSAGE_H_
#define _MESSAGE_H_
#include "array.h"
typedef void (*LC_MSG_CALLBACK) (int message, void *data, void *user);
typedef enum
{
LC_MSG_FOCUS_CHANGED,
// LC_MSG_SELECTION_CHANGED,
LC_MSG_COUNT
} LC_MSG_TYPES;
typedef struct
{
LC_MSG_CALLBACK func;
void *user;
} LC_MSG_STRUCT;
class Messenger
{
public:
Messenger ();
~Messenger ();
void AddRef ()
{ m_nRef++; };
void DecRef ()
{ m_nRef--; if (m_nRef == 0) delete this; };
void Dispatch (int message, void *data);
void Listen (LC_MSG_CALLBACK func, void *user);
protected:
int m_nRef;
PtrArray<LC_MSG_STRUCT> m_Listeners;
};
#endif // _MESSAGE_H_