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/*
flext - C++ layer for Max/MSP and pd (pure data) externals
Copyright (c) 2001-2003 Thomas Grill (xovo@gmx.net)
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "license.txt," in this distribution.
*/
/*! \file flext.cpp
\brief Implementation of the flext base class.
*/
#include "flext.h"
#include "flinternal.h"
#include <string.h>
// === flext_base ============================================
bool flext_base::compatibility = true;
flext_base::flext_base():
inlist(NULL),outlist(NULL),
curtag(NULL),
incnt(0),outcnt(0),
insigs(0),outsigs(0),
distmsgs(false)
#if FLEXT_SYS == FLEXT_SYS_PD || FLEXT_SYS == FLEXT_SYS_MAX
,outlets(NULL),inlets(NULL)
#endif
#if FLEXT_SYS == FLEXT_SYS_MAX
,indesc(NULL),outdesc(NULL)
#endif
{
FLEXT_LOG1("%s - flext logging is on",thisName());
t_classid clid = thisClassId();
clmethhead = ClMeths(clid);
methhead = new itemarr;
bindhead = NULL;
if(procattr) {
// initialize when attribute processing is enabled
attrhead = new itemarr;
clattrhead = ClAttrs(clid);
}
else
attrhead = clattrhead = NULL;
}
flext_base::~flext_base()
{
#if FLEXT_SYS == FLEXT_SYS_MAX
// according to David Z. one should do that first...
// if(insigs) dsp_free(thisHdr());
if(insigs) dsp_freebox(thisHdr());
#endif
#ifdef FLEXT_THREADS
StopThreads();
#endif
// send remaining pending messages for this object
QFlush(this);
// delete message lists
if(methhead) delete methhead;
if(bindhead) delete bindhead; // ATTENTION: the object must free all memory associated to bindings itself
if(attrhead) delete attrhead;
// destroy inlets and outlets and their proxy objects
if(inlist) delete inlist;
if(outlist) delete outlist;
#if FLEXT_SYS == FLEXT_SYS_PD || FLEXT_SYS == FLEXT_SYS_MAX
if(outlets) delete[] outlets;
if(inlets) {
for(int ix = 0; ix < incnt; ++ix)
if(inlets[ix]) {
// release proxy object
#if FLEXT_SYS == FLEXT_SYS_PD
pd_free(&inlets[ix]->obj.ob_pd);
#elif FLEXT_SYS == FLEXT_SYS_MAX
freeobject((object *)inlets[ix]);
#endif
}
delete[] inlets;
}
#endif
#if FLEXT_SYS == FLEXT_SYS_MAX
if(indesc) {
for(int i = 0; i < incnt; ++i) if(indesc[i]) delete[] indesc[i];
delete[] indesc;
}
if(outdesc) {
for(int i = 0; i < outcnt; ++i) if(outdesc[i]) delete[] outdesc[i];
delete[] outdesc;
}
#endif
}
/*! This virtual function is called after the object has been created, that is,
after the constructor has been processed.
It creates the inlets and outlets and the message and attribute lists.
\note You can override it in your own class, but be sure to call it,
\note otherwise no inlets/outlets will be created
\note All inlet, outlets, method and attribute declarations must be made before a call to Init!
\remark Creation of inlets/outlets can't be done upon declaration, as Max/MSP needs creation
\remark in reverse.
*/
bool flext_base::Init()
{
bool ok = flext_obj::Init();
if(ok) ok = InitInlets() && InitOutlets();
if(ok) {
// initialize method lists
if(methhead) methhead->Finalize();
if(clmethhead) clmethhead->Finalize();
if(procattr) {
// initialize attribute lists
if(attrhead) attrhead->Finalize();
if(clattrhead) clattrhead->Finalize();
// initialize creation attributes
if(m_holdaargc && m_holdaargv)
ok = InitAttrib(m_holdaargc,m_holdaargv);
}
}
return ok;
}
/*! Set up proxy classes and basic methods at class creation time
This ensures that they are processed before the registered flext messages
*/
void flext_base::Setup(t_classid id)
{
t_class *c = getClass(id);
#if FLEXT_SYS == FLEXT_SYS_PD || FLEXT_SYS == FLEXT_SYS_MAX
add_method(c,cb_help,"help");
add_loadbang(c,cb_loadbang);
#if FLEXT_SYS == FLEXT_SYS_MAX
add_assist(c,cb_assist);
#endif
#else
fts_class_message_varargs(c,MakeSymbol("help"),cb_help);
#pragma message ("no implementation of loadbang or assist")
#endif
if(process_attributes) {
AddMethod(id,0,"getattributes",cb_ListAttrib);
AddMethod(id,0,"getmethods",cb_ListMethods);
}
SetProxies(c);
StartQueue();
}
#if FLEXT_SYS == FLEXT_SYS_JMAX
void flext_base::cb_help(fts_object_t *c,int, fts_symbol_t, int, const fts_atom_t *) { thisObject(c)->m_help(); }
#else
void flext_base::cb_help(t_class *c) { thisObject(c)->m_help(); }
void flext_base::cb_loadbang(t_class *c) { thisObject(c)->m_loadbang(); }
#endif
void flext_base::m_help()
{
// This should better be overloaded
post("%s (using flext " FLEXT_VERSTR ") - compiled on %s %s",thisName(),__DATE__,__TIME__);
}
void flext_base::m_loadbang() {}
#if FLEXT_SYS == FLEXT_SYS_MAX
void flext_base::cb_assist(t_class *c,void * /*b*/,long msg,long arg,char *s) { thisObject(c)->m_assist(msg,arg,s); }
#endif
void flext_base::m_assist(long msg,long arg,char *s)
{
#if FLEXT_SYS == FLEXT_SYS_MAX
switch(msg) {
case 1: //ASSIST_INLET:
strcpy(s,arg < incnt && indesc[arg]?indesc[arg]:"");
break;
case 2: //ASSIST_OUTLET:
if(arg < outcnt)
strcpy(s,outdesc[arg]?outdesc[arg]:"");
else
strcpy(s,arg == outcnt && procattr?"Attributes":"");
break;
}
#endif
}
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