www.pudn.com > MPEG2systemsrc.rar > Events.C

/* Copyright (C) 1995, Tektronix Inc. All Rights Reserved.
 *
 *   Usage Restrictions
 *
 * License is granted to copy, to use, and to make and to use derivative
 * works for research and evaluation purposes only.
 *
 *   Disclaimer of Warranty
 *
 * These software programs are available to the user without any license
 * fee or royalty on an "as is" basis.  Tektronix Inc. disclaims any and
 * all warranties, whether express, implied, or statuary, including any
 * implied warranties or merchantability or of fitness for a particular
 * purpose.  In no event shall the copyright-holder be liable for any 
 * incidental, punitive, or consequential damages of any kind whatsoever
 * arising from the use of these programs.
 *
 * This disclaimer of warranty extends to the user of these programs and
 * user's customers, employees, agents, transferees, successors, and
 * assigns.
 *
 * The Tektronix Inc. does not represent or warrant that the programs
 * furnished hereunder are free of infringement of any third-party
 * patents.
*/

/* Event implementation */

#include "Events.H"

EventManager::EventManager ()
{
  for (int i = 0; i < (int) NumberEventTypes; i++)
    {
      Callbacks[i] = NULL;
    }
}

void EventManager::Register (EventType t, Callback f, void* d)
{
  CallbackRecord* crec = new CallbackRecord(t, f, d);
  Callbacks[t] = crec;
}

void EventManager::Trigger (EventType t, void* call_data)
{
  if ((t < 0) || (t >= NumberEventTypes)) return;

  CallbackRecord* crec = Callbacks[t];
  if (crec) crec->callback(crec->type, crec->client_data, call_data);
}

CallbackRecord::CallbackRecord (EventType t, Callback c, void* d)
{
  type = t;
  callback = c;
  client_data = d;
}

Wrapper::Wrapper (int ii)
{
  i = ii;
}

Wrapper::Wrapper (char cc)
{
  c = cc;
}