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|
/* Copyright (c) 2002-2005 krzYszcz and others.
* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution. */
/* The three uses of the 'hammerfile' proxy class are:
1. providing `embedding' facility -- storing master object's state
in a .pd file,
2. encapsulating openpanel/savepanel management,
3. extending the gui of Pd with a simple text editor window.
A master class which needs embedding feature (like coll), passes
a nonzero flag to the hammerfile setup routine, and a nonzero embedfn
function pointer to the hammerfile constructor. If a master needs
access to the panels (like collcommon), then it passes nonzero readfn
and/or writefn callback pointers to the constructor. A master which has
an associated text editor, AND wants to update object's state after
edits, passes a nonzero updatefn callback in a call to the constructor.
LATER extract the embedding stuff. */
#include <stdio.h>
#include <string.h>
#include "m_pd.h"
#include "g_canvas.h"
#include "common/os.h"
#include "unstable/forky.h"
#include "hammer/file.h"
struct _hammerfile
{
t_pd f_pd;
t_pd *f_master;
t_canvas *f_canvas;
t_symbol *f_bindname;
t_symbol *f_currentdir;
t_symbol *f_inidir;
t_symbol *f_inifile;
t_hammerfilefn f_panelfn;
t_hammerfilefn f_editorfn;
t_hammerembedfn f_embedfn;
t_binbuf *f_binbuf;
t_clock *f_panelclock;
t_clock *f_editorclock;
struct _hammerfile *f_savepanel;
struct _hammerfile *f_next;
};
static t_class *hammerfile_class = 0;
static t_hammerfile *hammerfile_proxies;
static t_symbol *ps__C;
static t_hammerfile *hammerfile_getproxy(t_pd *master)
{
t_hammerfile *f;
for (f = hammerfile_proxies; f; f = f->f_next)
if (f->f_master == master)
return (f);
return (0);
}
static void hammereditor_guidefs(void)
{
sys_gui("proc hammereditor_open {name geometry title sendable} {\n");
sys_gui(" if {[winfo exists $name]} {\n");
sys_gui(" $name.text delete 1.0 end\n");
sys_gui(" } else {\n");
sys_gui(" toplevel $name\n");
sys_gui(" wm title $name $title\n");
sys_gui(" wm geometry $name $geometry\n");
sys_gui(" if {$sendable} {\n");
sys_gui(" wm protocol $name WM_DELETE_WINDOW \\\n");
sys_gui(" [concat hammereditor_close $name 1]\n");
sys_gui(" bind $name <<Modified>> \"hammereditor_dodirty $name\"\n");
sys_gui(" }\n");
sys_gui(" text $name.text -relief raised -bd 2 \\\n");
sys_gui(" -font -*-courier-medium--normal--12-* \\\n");
sys_gui(" -yscrollcommand \"$name.scroll set\" -background lightgrey\n");
sys_gui(" scrollbar $name.scroll -command \"$name.text yview\"\n");
sys_gui(" pack $name.scroll -side right -fill y\n");
sys_gui(" pack $name.text -side left -fill both -expand 1\n");
sys_gui(" }\n");
sys_gui("}\n");
sys_gui("proc hammereditor_dodirty {name} {\n");
sys_gui(" if {[catch {$name.text edit modified} dirty]} {set dirty 0}\n");
sys_gui(" set title [wm title $name]\n");
sys_gui(" set dt [string equal -length 1 $title \"*\"]\n");
sys_gui(" if {$dirty} {\n");
sys_gui(" if {$dt == 0} {wm title $name *$title}\n");
sys_gui(" } else {\n");
sys_gui(" if {$dt} {wm title $name [string range $title 1 end]}\n");
sys_gui(" }\n");
sys_gui("}\n");
sys_gui("proc hammereditor_setdirty {name flag} {\n");
sys_gui(" if {[winfo exists $name]} {\n");
sys_gui(" catch {$name.text edit modified $flag}\n");
sys_gui(" }\n");
sys_gui("}\n");
sys_gui("proc hammereditor_doclose {name} {\n");
sys_gui(" destroy $name\n");
sys_gui("}\n");
sys_gui("proc hammereditor_append {name contents} {\n");
sys_gui(" if {[winfo exists $name]} {\n");
sys_gui(" $name.text insert end $contents\n");
sys_gui(" }\n");
sys_gui("}\n");
/* FIXME make it more reliable */
sys_gui("proc hammereditor_send {name} {\n");
sys_gui(" if {[winfo exists $name]} {\n");
sys_gui(" pd [concat miXed$name clear \\;]\n");
sys_gui(" for {set i 1} \\\n");
sys_gui(" {[$name.text compare $i.end < end]} \\\n");
sys_gui(" {incr i 1} {\n");
sys_gui(" set lin [$name.text get $i.0 $i.end]\n");
sys_gui(" if {$lin != \"\"} {\n");
/* LATER rethink semi/comma mapping */
sys_gui(" regsub -all \\; $lin \" _semi_ \" tmplin\n");
sys_gui(" regsub -all \\, $tmplin \" _comma_ \" lin\n");
sys_gui(" pd [concat miXed$name addline $lin \\;]\n");
sys_gui(" }\n");
sys_gui(" }\n");
sys_gui(" pd [concat miXed$name end \\;]\n");
sys_gui(" }\n");
sys_gui("}\n");
sys_gui("proc hammereditor_close {name ask} {\n");
sys_gui(" if {[winfo exists $name]} {\n");
sys_gui(" if {[catch {$name.text edit modified} dirty]} {set dirty 0}\n");
sys_gui(" if {$ask && $dirty} {\n");
sys_gui(" set title [wm title $name]\n");
sys_gui(" if {[string equal -length 1 $title \"*\"]} {\n");
sys_gui(" set title [string range $title 1 end]\n");
sys_gui(" }\n");
sys_gui(" set answer [tk_messageBox \\-type yesnocancel \\\n");
sys_gui(" \\-icon question \\\n");
sys_gui(" \\-message [concat Save changes to $title?]]\n");
sys_gui(" if {$answer == \"yes\"} {hammereditor_send $name}\n");
sys_gui(" if {$answer != \"cancel\"} {hammereditor_doclose $name}\n");
sys_gui(" } else {hammereditor_doclose $name}\n");
sys_gui(" }\n");
sys_gui("}\n");
}
/* null owner defaults to class name, pass "" to supress */
void hammereditor_open(t_hammerfile *f, char *title, char *owner)
{
if (!owner)
owner = class_getname(*f->f_master);
if (!*owner)
owner = 0;
if (!title)
{
title = owner;
owner = 0;
}
if (owner)
sys_vgui("hammereditor_open .%x %dx%d {%s: %s} %d\n",
(int)f, 600, 340, owner, title, (f->f_editorfn != 0));
else
sys_vgui("hammereditor_open .%x %dx%d {%s} %d\n",
(int)f, 600, 340, (title ? title : "Untitled"),
(f->f_editorfn != 0));
}
static void hammereditor_tick(t_hammerfile *f)
{
sys_vgui("hammereditor_close .%x 1\n", (int)f);
}
void hammereditor_close(t_hammerfile *f, int ask)
{
if (ask && f->f_editorfn)
/* hack: deferring modal dialog creation in order to allow for
a message box redraw to happen -- LATER investigate */
clock_delay(f->f_editorclock, 0);
else
sys_vgui("hammereditor_close .%x 0\n", (int)f);
}
void hammereditor_append(t_hammerfile *f, char *contents)
{
if (!contents) contents = "";
sys_vgui("hammereditor_append .%x {%s}\n", (int)f, contents);
}
void hammereditor_setdirty(t_hammerfile *f, int flag)
{
if (f->f_editorfn)
sys_vgui("hammereditor_setdirty .%x %d\n", (int)f, flag);
}
static void hammereditor_clear(t_hammerfile *f)
{
if (f->f_editorfn)
{
if (f->f_binbuf)
binbuf_clear(f->f_binbuf);
else
f->f_binbuf = binbuf_new();
}
}
static void hammereditor_addline(t_hammerfile *f,
t_symbol *s, int ac, t_atom *av)
{
if (f->f_editorfn)
{
int i;
t_atom *ap;
for (i = 0, ap = av; i < ac; i++, ap++)
{
if (ap->a_type == A_SYMBOL)
{
/* LATER rethink semi/comma mapping */
if (!strcmp(ap->a_w.w_symbol->s_name, "_semi_"))
SETSEMI(ap);
else if (!strcmp(ap->a_w.w_symbol->s_name, "_comma_"))
SETCOMMA(ap);
}
}
binbuf_add(f->f_binbuf, ac, av);
}
}
static void hammereditor_end(t_hammerfile *f)
{
if (f->f_editorfn)
{
(*f->f_editorfn)(f->f_master, 0, binbuf_getnatom(f->f_binbuf),
binbuf_getvec(f->f_binbuf));
binbuf_clear(f->f_binbuf);
}
}
static void hammerpanel_guidefs(void)
{
sys_gui("proc hammerpanel_open {target inidir} {\n");
sys_gui(" global pd_opendir\n");
sys_gui(" if {$inidir == \"\"} {\n");
sys_gui(" set $inidir $pd_opendir\n");
sys_gui(" }\n");
sys_gui(" set filename [tk_getOpenFile \\\n");
sys_gui(" -initialdir $inidir]\n");
sys_gui(" if {$filename != \"\"} {\n");
sys_gui(" set directory [string range $filename 0 \\\n");
sys_gui(" [expr [string last / $filename ] - 1]]\n");
sys_gui(" if {$directory == \"\"} {set directory \"/\"}\n");
#if 1
sys_gui(" puts stderr [concat $directory]\n");
#endif
sys_gui(" pd [concat $target path \\\n");
sys_gui(" [pdtk_enquote $filename] [pdtk_enquote $directory] \\;]\n");
sys_gui(" }\n");
sys_gui("}\n");
sys_gui("proc hammerpanel_save {target inidir inifile} {\n");
sys_gui(" if {$inifile != \"\"} {\n");
sys_gui(" set filename [tk_getSaveFile \\\n");
sys_gui(" -initialdir $inidir -initialfile $inifile]\n");
sys_gui(" } else {\n");
sys_gui(" set filename [tk_getSaveFile]\n");
sys_gui(" }\n");
sys_gui(" if {$filename != \"\"} {\n");
sys_gui(" set directory [string range $filename 0 \\\n");
sys_gui(" [expr [string last / $filename ] - 1]]\n");
sys_gui(" if {$directory == \"\"} {set directory \"/\"}\n");
sys_gui(" pd [concat $target path \\\n");
sys_gui(" [pdtk_enquote $filename] [pdtk_enquote $directory] \\;]\n");
sys_gui(" }\n");
sys_gui("}\n");
}
/* There are two modes of -initialdir persistence:
1. Using last reply from gui (if any, default is canvas directory):
pass null to hammerpanel_open/save() (for explicit cd, optionally call
hammerpanel_setopen/savedir() first).
2. Starting always in the same directory (eg. canvasdir):
feed hammerpanel_open/save().
Usually, first mode fits opening better, the second -- saving. */
/* This is obsolete, but has to stay, because older versions of miXed libraries
might overwrite new hammerpanel_guidefs(). FIXME we need version control. */
static void hammerpanel_symbol(t_hammerfile *f, t_symbol *s)
{
if (s && s != &s_ && f->f_panelfn)
(*f->f_panelfn)(f->f_master, s, 0, 0);
}
static void hammerpanel_path(t_hammerfile *f, t_symbol *s1, t_symbol *s2)
{
if (s2 && s2 != &s_)
f->f_currentdir = s2;
if (s1 && s1 != &s_ && f->f_panelfn)
(*f->f_panelfn)(f->f_master, s1, 0, 0);
}
static void hammerpanel_tick(t_hammerfile *f)
{
if (f->f_savepanel)
sys_vgui("hammerpanel_open %s {%s}\n", f->f_bindname->s_name,
f->f_inidir->s_name);
else
sys_vgui("hammerpanel_save %s {%s} {%s}\n", f->f_bindname->s_name,
f->f_inidir->s_name, f->f_inifile->s_name);
}
/* these are hacks: deferring modal dialog creation in order to allow for
a message box redraw to happen -- LATER investigate */
void hammerpanel_open(t_hammerfile *f, t_symbol *inidir)
{
if (inidir)
f->f_inidir = inidir;
else
f->f_inidir = (f->f_currentdir ? f->f_currentdir : &s_);
clock_delay(f->f_panelclock, 0);
}
void hammerpanel_setopendir(t_hammerfile *f, t_symbol *dir)
{
if (f->f_currentdir && f->f_currentdir != &s_)
{
if (dir && dir != &s_)
{
int length;
if (length = ospath_length(dir->s_name, f->f_currentdir->s_name))
{
char *path = getbytes(length + 1);
if (ospath_absolute(dir->s_name, f->f_currentdir->s_name, path))
/* LATER stat (think how to report a failure) */
f->f_currentdir = gensym(path);
freebytes(path, length + 1);
}
}
else if (f->f_canvas)
f->f_currentdir = canvas_getdir(f->f_canvas);
}
else bug("hammerpanel_setopendir");
}
t_symbol *hammerpanel_getopendir(t_hammerfile *f)
{
return (f->f_currentdir);
}
void hammerpanel_save(t_hammerfile *f, t_symbol *inidir, t_symbol *inifile)
{
if (f = f->f_savepanel)
{
if (inidir)
f->f_inidir = inidir;
else
/* LATER ask if we can rely on s_ pointing to "" */
f->f_inidir = (f->f_currentdir ? f->f_currentdir : &s_);
f->f_inifile = (inifile ? inifile : &s_);
clock_delay(f->f_panelclock, 0);
}
}
void hammerpanel_setsavedir(t_hammerfile *f, t_symbol *dir)
{
if (f = f->f_savepanel)
hammerpanel_setopendir(f, dir);
}
t_symbol *hammerpanel_getsavedir(t_hammerfile *f)
{
return (f->f_savepanel ? f->f_savepanel->f_currentdir : 0);
}
/* Currently embeddable hammer classes do not use the 'saveto' method.
In order to use it, any embeddable class would have to add a creation
method to pd_canvasmaker -- then saving could be done with a 'proper'
sequence: #N <master> <args>; #X <whatever>; ...; #X restore <x> <y>;
However, this works only for -lib externals. So, we choose a sequence:
#X obj <x> <y> <master> <args>; #C <whatever>; ...; #C restore;
Since the first message in this sequence is a valid creation message
on its own, we have to distinguish loading from a .pd file, and other
cases (editing). */
static void hammerembed_gc(t_pd *x, t_symbol *s, int expected)
{
t_pd *garbage;
int count = 0;
while (garbage = pd_findbyclass(s, *x)) pd_unbind(garbage, s), count++;
if (count != expected)
bug("hammerembed_gc (%d garbage bindings)", count);
}
static void hammerembed_restore(t_pd *master)
{
hammerembed_gc(master, ps__C, 1);
}
void hammerembed_save(t_gobj *master, t_binbuf *bb)
{
t_hammerfile *f = hammerfile_getproxy((t_pd *)master);
t_text *t = (t_text *)master;
binbuf_addv(bb, "ssii", &s__X, gensym("obj"),
(int)t->te_xpix, (int)t->te_ypix);
binbuf_addbinbuf(bb, t->te_binbuf);
binbuf_addsemi(bb);
if (f && f->f_embedfn)
(*f->f_embedfn)(f->f_master, bb, ps__C);
binbuf_addv(bb, "ss;", ps__C, gensym("restore"));
}
int hammerfile_ismapped(t_hammerfile *f)
{
return (f->f_canvas->gl_mapped);
}
int hammerfile_isloading(t_hammerfile *f)
{
return (f->f_canvas->gl_loading);
}
/* LATER find a better way */
int hammerfile_ispasting(t_hammerfile *f)
{
int result = 0;
t_canvas *cv = f->f_canvas;
if (!cv->gl_loading)
{
t_pd *z = s__X.s_thing;
if (z == (t_pd *)cv)
{
pd_popsym(z);
if (s__X.s_thing == (t_pd *)cv) result = 1;
pd_pushsym(z);
}
else if (z) result = 1;
}
#if 0
if (result) post("pasting");
#endif
return (result);
}
void hammerfile_free(t_hammerfile *f)
{
t_hammerfile *prev, *next;
hammereditor_close(f, 0);
if (f->f_embedfn)
/* just in case of missing 'restore' */
hammerembed_gc(f->f_master, ps__C, 0);
if (f->f_savepanel)
{
pd_unbind((t_pd *)f->f_savepanel, f->f_savepanel->f_bindname);
pd_free((t_pd *)f->f_savepanel);
}
if (f->f_bindname) pd_unbind((t_pd *)f, f->f_bindname);
if (f->f_panelclock) clock_free(f->f_panelclock);
if (f->f_editorclock) clock_free(f->f_editorclock);
for (prev = 0, next = hammerfile_proxies;
next; prev = next, next = next->f_next)
if (next == f)
break;
if (prev)
prev->f_next = f->f_next;
else if (f == hammerfile_proxies)
hammerfile_proxies = f->f_next;
pd_free((t_pd *)f);
}
t_hammerfile *hammerfile_new(t_pd *master, t_hammerembedfn embedfn,
t_hammerfilefn readfn, t_hammerfilefn writefn,
t_hammerfilefn updatefn)
{
t_hammerfile *result = (t_hammerfile *)pd_new(hammerfile_class);
result->f_master = master;
result->f_next = hammerfile_proxies;
hammerfile_proxies = result;
if (!(result->f_canvas = canvas_getcurrent()))
{
bug("hammerfile_new: out of context");
return (result);
}
/* 1. embedding */
if (result->f_embedfn = embedfn)
{
/* just in case of missing 'restore' */
hammerembed_gc(master, ps__C, 0);
if (hammerfile_isloading(result) || hammerfile_ispasting(result))
pd_bind(master, ps__C);
}
/* 2. the panels */
if (readfn || writefn)
{
t_hammerfile *f;
char buf[64];
sprintf(buf, "miXed.%x", (int)result);
result->f_bindname = gensym(buf);
pd_bind((t_pd *)result, result->f_bindname);
result->f_currentdir =
result->f_inidir = canvas_getdir(result->f_canvas);
result->f_panelfn = readfn;
result->f_panelclock = clock_new(result, (t_method)hammerpanel_tick);
f = (t_hammerfile *)pd_new(hammerfile_class);
f->f_master = master;
f->f_canvas = result->f_canvas;
sprintf(buf, "miXed.%x", (int)f);
f->f_bindname = gensym(buf);
pd_bind((t_pd *)f, f->f_bindname);
f->f_currentdir = f->f_inidir = result->f_currentdir;
f->f_panelfn = writefn;
f->f_panelclock = clock_new(f, (t_method)hammerpanel_tick);
result->f_savepanel = f;
}
else result->f_savepanel = 0;
/* 3. editor */
if (result->f_editorfn = updatefn)
{
result->f_editorclock = clock_new(result, (t_method)hammereditor_tick);
if (!result->f_bindname)
{
char buf[64];
sprintf(buf, "miXed.%x", (int)result);
result->f_bindname = gensym(buf);
pd_bind((t_pd *)result, result->f_bindname);
}
}
return (result);
}
void hammerfile_setup(t_class *c, int embeddable)
{
if (embeddable)
{
forky_setsavefn(c, hammerembed_save);
class_addmethod(c, (t_method)hammerembed_restore,
gensym("restore"), 0);
}
if (!hammerfile_class)
{
ps__C = gensym("#C");
hammerfile_class = class_new(gensym("_hammerfile"), 0, 0,
sizeof(t_hammerfile),
CLASS_PD | CLASS_NOINLET, 0);
class_addsymbol(hammerfile_class, hammerpanel_symbol);
class_addmethod(hammerfile_class, (t_method)hammerpanel_path,
gensym("path"), A_SYMBOL, A_DEFSYM, 0);
class_addmethod(hammerfile_class, (t_method)hammereditor_clear,
gensym("clear"), 0);
class_addmethod(hammerfile_class, (t_method)hammereditor_addline,
gensym("addline"), A_GIMME, 0);
class_addmethod(hammerfile_class, (t_method)hammereditor_end,
gensym("end"), 0);
/* LATER find a way of ensuring that these are not defined yet... */
hammereditor_guidefs();
hammerpanel_guidefs();
}
}
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