If you would like to be added as a developer on the pure-data CVS,
just send an email to pd-dev introducing yourself and a brief
explanation of what you are working on and why you want to be added
as a developer. I think no one will object.
.hc
On Aug 29, 2007, at 6:17 PM, Thomas O Fredericks wrote:
Oh yeah, attached is the source code and compiled versions for
linux and window. I do not have cvs access. Could someone please
include it in the cvs and adapt the makefile accordingly? Also
could someone compile it for OS X intel and PPC and send me the
binary?
Tom
On 8/29/07, Thomas O Fredericks <[EMAIL PROTECTED]> wrote:
getdollarzero can get the dollar zero of any parent.
For example, lets say a patch called "top" contains the abstraction 1.
The abstraction 1 contains the abstraction 2.
The abstraction 2 contains the abstraction 3.
Well, with getdollarzero, abstraction 1 through 3 can know the
dollar zero of the patch "top".
The patch "top" becomes the "root" patch.
All the abstractions 1 through 3 have in common this "root" patch.
This is what I needed it for:
1) I am currently developing a state saving system that does not
require the "$0" arguments (of Memento for example). The state of
all elements that have the same "root" patch are saved together.
2) I am also creating a timing architecture for PD and I wanted all
elements in the same "root" to be synchronized together.
Tom
On 8/29/07, Hans-Christoph Steiner <[EMAIL PROTECTED]> wrote:
Hey,
I think Günter didn't want to depend on non-public headers like
g_canvas.h, so included the glist struct from that header.
Personally, I think makes more sense to include the g_canvas.h header.
[parentdollarzero] like a useful object, I am not usre what
[getdollarzero] does beyond [float $0] or [$0]. Anyway, hopefully
they make into Pd-extended.
.hc
On Aug 27, 2007, at 4:43 PM, Thomas O Fredericks wrote:
Thanks to Han's help page ( http://puredata.info/docs/developer/
mingw) I was able to compile a test external on windows with mingw.
I then started making a new external called getdollarzero based on
getdir (from ggee) and parentdollarzero (from iemlib2). I compiled
it and it works but I had to:
1) remove Guenter's hack from getdir's source code
2) and therefore include g_canvas.h
My question is the following: why is there a hack in the first
place? If I do not use it will my code crash PD in some way (I
compiled against PD 0.4 and worked fine during testing)?
As a reference, here is my code with the hack commented out :
--------- getdollarzero --------
#include "m_pd.h"
#include "g_canvas.h" //needed to include g_canvas.h once the hack
was commented out
/* HACK
struct _glist
{
t_object gl_obj; // header in case we're a glist
t_gobj *gl_list; // the actual data
struct _gstub *gl_stub; // safe pointer handler
int gl_valid; // incremented when pointers might
be stale
struct _glist *gl_owner; // parent glist, supercanvas, or 0
if none
};
END HACK
*/
typedef struct getdollarzero
{
t_object x_ob;
t_canvas * x_canvas;
t_outlet* x_outlet;
int x_level;
} t_getdollarzero;
static void getdollarzero_bang(t_getdollarzero *x)
{
int i = x->x_level;
t_canvas* last = x->x_canvas;
while (i>0) {
i--;
if (last->gl_owner) last = last->gl_owner;
}
// code example taken from iemlib2's parentdollarzero:
// x->s_parent_unique = canvas_realizedollar((t_canvas *)
this_canvas->gl_owner, gensym("$0"));
// original get dir function:
//outlet_symbol(x->x_outlet,canvas_getdir(last));
outlet_symbol(x->x_outlet,canvas_realizedollar(last, gensym
("$0")));
}
t_class *getdollarzero_class;
static void *getdollarzero_new(t_floatarg level)
{
t_getdollarzero *x = (t_getdollarzero *)pd_new
(getdollarzero_class);
x->x_canvas = canvas_getcurrent();
x->x_outlet = outlet_new(&x->x_ob, &s_);
x->x_level = level;
return (void *)x;
}
void getdollarzero_setup(void)
{
getdollarzero_class = class_new(gensym("getdollarzero"),
(t_newmethod)getdollarzero_new, 0,
sizeof(t_getdollarzero), 0, A_DEFFLOAT,0);
class_addbang(getdollarzero_class, getdollarzero_bang);
}
--------- getdollarzero end --------
--
thomas ouellet fredericks, [EMAIL PROTECTED], montreal, canada
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----------------------------------------------------------------------
------
Computer science is no more related to the computer than astronomy
is related to the telescope. -Edsger Dykstra
--
thomas ouellet fredericks, [EMAIL PROTECTED] , montreal, canada
--
thomas ouellet fredericks, [EMAIL PROTECTED], montreal, canada
<getdollarzero.zip>
------------------------------------------------------------------------
----
"It is convenient to imagine a power beyond us because that means we
don't have to examine our own lives.", from "The Idols of
Environmentalism", by Curtis White
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