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/******************************************************
*
* canvasdollarzero - implementation file
*
*
* copyleft (c) IOhannes m zmölnig
*
* 2007:forum::für::umläute:2007
*
* institute of electronic music and acoustics (iem)
*
* based on iemlib2
* copyright (c) 2000-2006 Thomas Musil, IEM, KUG, Graz/Austria
*
******************************************************
*
* license: GNU General Public License v.2 (or later)
*
******************************************************/
#include "iemguts.h"
#include "g_canvas.h"
/* -------------- canvasdollarzero --------------- */
/* -- receives the $0 value of the parent canvas --*/
static t_class *canvasdollarzero_class;
typedef struct _canvasdollarzero
{
t_object x_obj;
t_symbol *s_dollzero;
} t_canvasdollarzero;
static void canvasdollarzero_bang(t_canvasdollarzero *x)
{
if(x->s_dollzero)
outlet_symbol(x->x_obj.ob_outlet, x->s_dollzero);
}
static void *canvasdollarzero_new(t_floatarg f)
{
t_canvasdollarzero *x = (t_canvasdollarzero *)pd_new(canvasdollarzero_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->s_dollzero=0;
if(canvas) {
x->s_dollzero = canvas_realizedollar(canvas, gensym("$0"));
}
outlet_new(&x->x_obj, &s_symbol);
return (x);
}
void canvasdollarzero_setup(void)
{
iemguts_boilerplate("[canvasdollarzero]", 0);
canvasdollarzero_class = class_new(gensym("canvasdollarzero"),
(t_newmethod)canvasdollarzero_new, 0,
sizeof(t_canvasdollarzero), 0,
A_DEFFLOAT, 0);
class_addbang(canvasdollarzero_class, (t_method)canvasdollarzero_bang);
}
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