1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
/*****************************************************
*
* receivecanvas - implementation file
*
* copyleft (c) 2009, IOhannes m zmölnig
*
* forum::für::umläute
*
* institute of electronic music and acoustics (iem)
*
******************************************************
*
* license: GNU General Public License v.2 (or later)
*
******************************************************/
/*
* this object provides a way to receive messages to upstream canvases
* by default it receives messages to the containing canvas, but you can give the "depth" as argument;
* e.g. [receivecanvas 1] will receive messages to the parent of the containing canvas
*/
/* NOTES:
* it would be _really_ nice to get all the messages that are somehow "sent" to a (parent) object,
* no matter whether using typedmess() or using sendcanvas()
* this would require (however) to overwrite and proxy the classmethods for canvas which is a chore
*
* currently this objects only gets the messages from typedmess()...
*/
#include "m_pd.h"
#include "g_canvas.h"
#include <stdio.h>
static t_class *receivecanvas_class, *receivecanvas_proxy_class;
typedef struct _receivecanvas_proxy
{
t_object p_obj;
t_symbol*p_sym;
t_clock *p_clock;
struct _receivecanvas*p_parent;
} t_receivecanvas_proxy;
typedef struct _receivecanvas
{
t_object x_obj;
t_receivecanvas_proxy*x_proxy;
} t_receivecanvas;
/* ------------------------- receivecanvas proxy ---------------------------- */
static void receivecanvas_anything(t_receivecanvas *x, t_symbol*s, int argc, t_atom*argv);
static void receivecanvas_proxy_anything(t_receivecanvas_proxy *p, t_symbol*s, int argc, t_atom*argv) {
if(p->p_parent)
receivecanvas_anything(p->p_parent, s, argc, argv);
}
static void receivecanvas_proxy_free(t_receivecanvas_proxy *p)
{
if(p->p_sym)
pd_unbind(&p->p_obj.ob_pd, p->p_sym);
p->p_sym=NULL;
clock_free(p->p_clock);
p->p_clock=NULL;
p->p_parent=NULL;
pd_free(&p->p_obj.ob_pd);
p=NULL;
}
static t_receivecanvas_proxy*receivecanvas_proxy_new(t_receivecanvas *x, t_symbol*s) {
t_receivecanvas_proxy*p=NULL;
if(!x) return p;
p=(t_receivecanvas_proxy*)pd_new(receivecanvas_proxy_class);
p->p_sym=s;
if(p->p_sym) {
pd_bind(&p->p_obj.ob_pd, p->p_sym);
}
p->p_parent=x;
p->p_clock=clock_new(p, (t_method)receivecanvas_proxy_free);
return p;
}
/* ------------------------- receivecanvas ---------------------------- */
static void receivecanvas_anything(t_receivecanvas *x, t_symbol*s, int argc, t_atom*argv)
{
outlet_anything(x->x_obj.ob_outlet, s, argc, argv);
}
static void receivecanvas_free(t_receivecanvas *x)
{
if(x->x_proxy) {
x->x_proxy->p_parent = NULL;
clock_delay(x->x_proxy->p_clock, 0);
}
}
static void *receivecanvas_new(t_floatarg f)
{
t_receivecanvas *x = (t_receivecanvas *)pd_new(receivecanvas_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_proxy=NULL;
if(canvas) {
char buf[MAXPDSTRING];
snprintf(buf, MAXPDSTRING-1, ".x%lx", (t_int)canvas);
buf[MAXPDSTRING-1]=0;
x->x_proxy=receivecanvas_proxy_new(x, gensym(buf));
}
outlet_new(&x->x_obj, 0);
return (x);
}
void receivecanvas_setup(void)
{
receivecanvas_class = class_new(gensym("receivecanvas"), (t_newmethod)receivecanvas_new,
(t_method)receivecanvas_free, sizeof(t_receivecanvas), CLASS_NOINLET, A_DEFFLOAT, 0);
receivecanvas_proxy_class = class_new(0, 0, 0, sizeof(t_receivecanvas_proxy), CLASS_NOINLET | CLASS_PD, 0);
class_addanything(receivecanvas_proxy_class, receivecanvas_proxy_anything);
}
|
