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messages.h

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/**********************************************************************
* FILE: MESSAGES.H
* AUTHOR: CAL
* DATE: 18 April 1993
* PURPOSE:
*   Messages are used to represent mouse and keyboard events, as
*   well as to inform control functions of event that occur at
*   the GUI level, for example, the pressing of a button.
***********************************************************************/

#ifndef _MESSAGES_H
#define _MESSAGES_H

#include "typedefs.h"


/**********************************************************************
* Message Structure
***********************************************************************/

struct Message {
  unsigned origin;
  unsigned code;  // Event code or message type
  int d1, d2;   // Integer data
  char str [25];  // String data

  Message (void) { origin = code = d1 = d2 = 0; str [0] = 0; }
  Message (unsigned o, unsigned c)
    { origin = o; code = c; d1 = d2 = 0; str [0] = 0; }
  Message (unsigned o, unsigned c, int a)
    { origin = o; code = c; d1 = a; d2 = 0; str [0] = 0; }
  Message (unsigned o, unsigned c, int a, int b)
    { origin = o; code = c; d1 = a; d2 = b; str [0] = 0; }
  bool operator == (Message &);
  bool operator != (Message &msg) { return (bool) (! (*this == msg)); }
};


/**********************************************************************
* Predefined Message Origins
***********************************************************************/

const unsigned GodMsg    = 0x0000;
const unsigned Unknown   = 0xFFFF;
const unsigned MouseMsg  = 0x0002;
const unsigned KeyMsg  = 0x0001;
const unsigned ButtonMsg = 0x0010;

/**********************************************************************
* Predefined Message Types
***********************************************************************/

const unsigned Null   = 0x0000; // Normal stuff
const unsigned Idle   = 0x0000;
const unsigned String   = 0x0001;
const unsigned Acknowledgement  = 0x0002;

const unsigned MouseDown  = 0x0020; // Mouse stuff
const unsigned LMouseDown = 0x0020;
const unsigned RMouseDown = 0x0021;
const unsigned MouseStillDown = 0x0022;
const unsigned LMouseStillDown  = 0x0022;
const unsigned RMouseStillDown  = 0x0023;
const unsigned MouseUp    = 0x0024;
const unsigned LMouseUp   = 0x0024;
const unsigned RMouseUp   = 0x0025;

const unsigned KeyPressed   = 0x0010;      // Keyboard

const unsigned ButtonPress    = 0x0101;      // Buttons
const unsigned RequestStatus  = 0x0102;
const unsigned Status         = 0x0103;
const unsigned Enable   = 0x0104;
const unsigned Disable    = 0x0105;


/**********************************************************************
* Predefined Message
***********************************************************************/

extern Message NullMsg;
extern Message Acknowledged;


#endif

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