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/******************************************************
*
* sendcanvas - implementation file
*
* copyleft (c) IOhannes m zmölnig
*
* 2007:forum::für::umläute:2007
*
* institute of electronic music and acoustics (iem)
*
******************************************************
*
* license: GNU General Public License v.2
*
******************************************************/
/*
* this object provides a way to send messages to upstream canvases
* by default it sends messages to the containing canvas, but you can give the
* "depth" as argument;
* e.g. [sendcanvas 1] will send messages to the parent of the containing canvas
*/
#include "m_pd.h"
#include "g_canvas.h"
int glist_getindex(t_glist *x, t_gobj *y);
/* ------------------------- sendcanvas ---------------------------- */
static t_class *sendcanvas_class;
typedef struct _sendcanvas
{
t_object x_obj;
t_pd *x_pd;
} t_sendcanvas;
static void sendcanvas_anything(t_sendcanvas *x, t_symbol*s, int argc, t_atom*argv)
{
if(0==x->x_pd)
return;
typedmess(x->x_pd, s, argc, argv);
}
static void sendcanvas_free(t_sendcanvas *x)
{
x->x_pd=0;
}
static void *sendcanvas_new(t_floatarg f)
{
t_sendcanvas *x = (t_sendcanvas *)pd_new(sendcanvas_class);
t_glist *glist=(t_glist *)canvas_getcurrent();
t_canvas *canvas=(t_canvas*)glist_getcanvas(glist);
int depth=(int)f;
if(depth<0)depth=0;
while(depth && canvas) {
canvas=canvas->gl_owner;
depth--;
}
x->x_pd = (t_pd*)canvas;
return (x);
}
void sendcanvas_setup(void)
{
sendcanvas_class = class_new(gensym("sendcanvas"), (t_newmethod)sendcanvas_new,
(t_method)sendcanvas_free, sizeof(t_sendcanvas), 0, A_DEFFLOAT, 0);
class_addanything(sendcanvas_class, (t_method)sendcanvas_anything);
}
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