g_canvas.c 76.1 KB
Newer Older
Miller Puckette's avatar
Miller Puckette committed
1
2
3
4
5
6
7
8
9
10
11
12
/* Copyright (c) 1997-2001 Miller Puckette and others.
* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */

/* this file defines the "glist" class, also known as "canvas" (the two used
to be different but are now unified except for some fossilized names.) */

#include <stdlib.h>
#include <stdio.h>
#include "m_pd.h"
#include "m_imp.h"
#include "s_stuff.h"
13
#include "g_magicglass.h"
Miller Puckette's avatar
Miller Puckette committed
14
15
#include "g_canvas.h"
#include "g_all_guis.h"
16
17
#include <string.h>

18
extern int do_not_redraw;
19
20
extern void canvas_drawconnection(t_canvas *x, int lx1, int ly1, int lx2, int ly2, t_int tag, int issignal);
extern void canvas_updateconnection(t_canvas *x, int lx1, int ly1, int lx2, int ly2, t_int tag);
Miller Puckette's avatar
Miller Puckette committed
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

    /* LATER consider adding font size to this struct (see glist_getfont()) */
struct _canvasenvironment
{
    t_symbol *ce_dir;      /* directory patch lives in */
    int ce_argc;           /* number of "$" arguments */
    t_atom *ce_argv;       /* array of "$" arguments */
    int ce_dollarzero;     /* value of "$0" */
    t_namelist *ce_path;   /* search path */
};

#define GLIST_DEFCANVASWIDTH 450
#define GLIST_DEFCANVASHEIGHT 300

#ifdef __APPLE__
#define GLIST_DEFCANVASYLOC 22
#else
#define GLIST_DEFCANVASYLOC 0
#endif

/* ---------------------- variables --------------------------- */

extern t_pd *newest;
t_class *canvas_class;
int canvas_dspstate;                /* whether DSP is on or off */  
t_canvas *canvas_editing;           /* last canvas to start text edting */ 
t_canvas *canvas_whichfind;         /* last canvas we did a find in */ 
t_canvas *canvas_list;              /* list of all root canvases */

/* ------------------ forward function declarations --------------- */
static void canvas_start_dsp(void);
static void canvas_stop_dsp(void);
static void canvas_drawlines(t_canvas *x);
54
void canvas_setbounds(t_canvas *x, int x1, int y1, int x2, int y2);
55
void canvas_reflecttitle(t_canvas *x);
Miller Puckette's avatar
Miller Puckette committed
56
57
58
static void canvas_addtolist(t_canvas *x);
static void canvas_takeofflist(t_canvas *x);
static void canvas_pop(t_canvas *x, t_floatarg fvis);
59
60
61
static int canvas_should_bind(t_canvas *x);
static void canvas_bind(t_canvas *x);
static void canvas_unbind(t_canvas *x);
Miller Puckette's avatar
Miller Puckette committed
62
63
64
65
66
67
68
69
70
71
72

/* --------- functions to handle the canvas environment ----------- */

static t_symbol *canvas_newfilename = &s_;
static t_symbol *canvas_newdirectory = &s_;
static int canvas_newargc;
static t_atom *canvas_newargv;

static void glist_doupdatewindowlist(t_glist *gl, char *sbuf)
{
    t_gobj *g;
73
74
    if (glist_amreloadingabstractions)  /* not if we're in a reload */
        return;
Miller Puckette's avatar
Miller Puckette committed
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
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
    if (!gl->gl_owner)
    {
        /* this is a canvas; if we have a window, put on "windows" list */
        t_canvas *canvas = (t_canvas *)gl;
        if (canvas->gl_havewindow)
        {
            if (strlen(sbuf) + strlen(gl->gl_name->s_name) + 100 <= 1024)
            {
                char tbuf[1024];
                sprintf(tbuf, "{{%s} .x%lx} ", gl->gl_name->s_name,
                    (t_int)canvas);
                strcat(sbuf, tbuf);
            }
        }
    }
    for (g = gl->gl_list; g; g = g->g_next)
    {
        if (pd_class(&g->g_pd) == canvas_class)
            glist_doupdatewindowlist((t_glist *)g, sbuf);
    }
    return;
}

    /* maintain the list of visible toplevels for the GUI's "windows" menu */
void canvas_updatewindowlist( void)
{
    t_canvas *x;
    char sbuf[1024];
    strcpy(sbuf, "set menu_windowlist {");
        /* find all root canvases */
    for (x = canvas_list; x; x = x->gl_next)
        glist_doupdatewindowlist(x, sbuf);
    /* next line updates the window menu state before -postcommand tries it */
    strcat(sbuf, "}\npdtk_fixwindowmenu\n");
    sys_gui(sbuf);
}

    /* add a glist the list of "root" canvases (toplevels without parents.) */
static void canvas_addtolist(t_canvas *x)
{
    x->gl_next = canvas_list;
    canvas_list = x;
}

static void canvas_takeofflist(t_canvas *x)
{
        /* take it off the window list */
    if (x == canvas_list) canvas_list = x->gl_next;
    else
    {
        t_canvas *z;
        for (z = canvas_list; z->gl_next != x; z = z->gl_next)
            ;
        z->gl_next = x->gl_next;
    }
}


void canvas_setargs(int argc, t_atom *argv)
{
        /* if there's an old one lying around free it here.  This
        happens if an abstraction is loaded but never gets as far
        as calling canvas_new(). */
    if (canvas_newargv)
        freebytes(canvas_newargv, canvas_newargc * sizeof(t_atom));
    canvas_newargc = argc;
    canvas_newargv = copybytes(argv, argc * sizeof(t_atom));
}

void glob_setfilename(void *dummy, t_symbol *filesym, t_symbol *dirsym)
{
    canvas_newfilename = filesym;
    canvas_newdirectory = dirsym;
}

t_canvas *canvas_getcurrent(void)
{
    return ((t_canvas *)pd_findbyclass(&s__X, canvas_class));
}

void canvas_setcurrent(t_canvas *x)
{
    pd_pushsym(&x->gl_pd);
}

void canvas_unsetcurrent(t_canvas *x)
{
    pd_popsym(&x->gl_pd);
}

t_canvasenvironment *canvas_getenv(t_canvas *x)
{
    if (!x) bug("canvas_getenv");
    while (!x->gl_env)
        if (!(x = x->gl_owner))
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
170
            bug("t_canvasenvironment");
Miller Puckette's avatar
Miller Puckette committed
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
    return (x->gl_env);
}

int canvas_getdollarzero( void)
{
    t_canvas *x = canvas_getcurrent();
    t_canvasenvironment *env = (x ? canvas_getenv(x) : 0);
    if (env)
        return (env->ce_dollarzero);
    else return (0);
}

void canvas_getargs(int *argcp, t_atom **argvp)
{
    t_canvasenvironment *e = canvas_getenv(canvas_getcurrent());
    *argcp = e->ce_argc;
    *argvp = e->ce_argv;
}

t_symbol *canvas_realizedollar(t_canvas *x, t_symbol *s)
{
    t_symbol *ret;
    char *name = s->s_name;
    if (strchr(name, '$'))
    {
        t_canvasenvironment *env = canvas_getenv(x);
        canvas_setcurrent(x);
        ret = binbuf_realizedollsym(s, env->ce_argc, env->ce_argv, 1);
        canvas_unsetcurrent(x);
    }
    else ret = s;
    return (ret);
}

t_symbol *canvas_getcurrentdir(void)
{
    t_canvasenvironment *e = canvas_getenv(canvas_getcurrent());
    return (e->ce_dir);
}

t_symbol *canvas_getdir(t_canvas *x)
{
    t_canvasenvironment *e = canvas_getenv(x);
    return (e->ce_dir);
}

void canvas_makefilename(t_canvas *x, char *file, char *result, int resultsize)
{
219
220
221
    char interim[FILENAME_MAX];
    sys_expandpathelems(file, interim);
    //fprintf(stderr,"interim = <%s>\n", interim);
Miller Puckette's avatar
Miller Puckette committed
222
    char *dir = canvas_getenv(x)->ce_dir->s_name;
223
    if (interim[0] == '/' || (interim[0] && interim[1] == ':') || !*dir)
Miller Puckette's avatar
Miller Puckette committed
224
    {
225
        //fprintf(stderr,"root file\n");
226
        strncpy(result, interim, resultsize);
Miller Puckette's avatar
Miller Puckette committed
227
228
229
230
        result[resultsize-1] = 0;
    }
    else
    {
231
        //fprintf(stderr,"relative file\n");
Miller Puckette's avatar
Miller Puckette committed
232
233
234
235
236
237
        int nleft;
        strncpy(result, dir, resultsize);
        result[resultsize-1] = 0;
        nleft = resultsize - strlen(result) - 1;
        if (nleft <= 0) return;
        strcat(result, "/");
238
        strncat(result, interim, nleft);
Miller Puckette's avatar
Miller Puckette committed
239
        result[resultsize-1] = 0;
240
    } 
241
    //fprintf(stderr,"resulting file = <%s>\n", result);          
Miller Puckette's avatar
Miller Puckette committed
242
243
244
245
}

void canvas_rename(t_canvas *x, t_symbol *s, t_symbol *dir)
{
246
    canvas_unbind(x);
Miller Puckette's avatar
Miller Puckette committed
247
    x->gl_name = s;
248
    canvas_bind(x);
249
    if (glist_isvisible(x))
250
    if (x->gl_havewindow) //was glist_isvisible(x)
Miller Puckette's avatar
Miller Puckette committed
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
        canvas_reflecttitle(x);
    if (dir && dir != &s_)
    {
        t_canvasenvironment *e = canvas_getenv(x);
        e->ce_dir = dir;
    }
}

/* --------------- traversing the set of lines in a canvas ----------- */

int canvas_getindex(t_canvas *x, t_gobj *y)
{
    t_gobj *y2;
    int indexno;
    for (indexno = 0, y2 = x->gl_list; y2 && y2 != y; y2 = y2->g_next)
        indexno++;
    return (indexno);
}

void linetraverser_start(t_linetraverser *t, t_canvas *x)
{
    t->tr_ob = 0;
    t->tr_x = x;
    t->tr_nextoc = 0;
    t->tr_nextoutno = t->tr_nout = 0;
}

t_outconnect *linetraverser_next(t_linetraverser *t)
{
    t_outconnect *rval = t->tr_nextoc;
    int outno;
    while (!rval)
    {
        outno = t->tr_nextoutno;
        while (outno == t->tr_nout)
        {
            t_gobj *y;
            t_object *ob = 0;
            if (!t->tr_ob) y = t->tr_x->gl_list;
            else y = t->tr_ob->ob_g.g_next;
            for (; y; y = y->g_next)
                if (ob = pd_checkobject(&y->g_pd)) break;
            if (!ob) return (0);
            t->tr_ob = ob;
            t->tr_nout = obj_noutlets(ob);
            outno = 0;
            if (glist_isvisible(t->tr_x))
                gobj_getrect(y, t->tr_x,
                    &t->tr_x11, &t->tr_y11, &t->tr_x12, &t->tr_y12);
            else t->tr_x11 = t->tr_y11 = t->tr_x12 = t->tr_y12 = 0;
        }
        t->tr_nextoutno = outno + 1;
        rval = obj_starttraverseoutlet(t->tr_ob, &t->tr_outlet, outno);
        t->tr_outno = outno;
    }
    t->tr_nextoc = obj_nexttraverseoutlet(rval, &t->tr_ob2,
        &t->tr_inlet, &t->tr_inno);
    t->tr_nin = obj_ninlets(t->tr_ob2);
    if (!t->tr_nin) bug("drawline");
    if (glist_isvisible(t->tr_x))
    {
        int inplus = (t->tr_nin == 1 ? 1 : t->tr_nin - 1);
        int outplus = (t->tr_nout == 1 ? 1 : t->tr_nout - 1);
        gobj_getrect(&t->tr_ob2->ob_g, t->tr_x,
            &t->tr_x21, &t->tr_y21, &t->tr_x22, &t->tr_y22);
        t->tr_lx1 = t->tr_x11 +
            ((t->tr_x12 - t->tr_x11 - IOWIDTH) * t->tr_outno) /
                outplus + IOMIDDLE;
        t->tr_ly1 = t->tr_y12;
        t->tr_lx2 = t->tr_x21 +
            ((t->tr_x22 - t->tr_x21 - IOWIDTH) * t->tr_inno)/inplus +
                IOMIDDLE;
        t->tr_ly2 = t->tr_y21;
    }
    else
    {
        t->tr_x21 = t->tr_y21 = t->tr_x22 = t->tr_y22 = 0;
        t->tr_lx1 = t->tr_ly1 = t->tr_lx2 = t->tr_ly2 = 0;
    }
    return (rval);
}

void linetraverser_skipobject(t_linetraverser *t)
{
    t->tr_nextoc = 0;
    t->tr_nextoutno = t->tr_nout;
}

/* -------------------- the canvas object -------------------------- */
int glist_valid = 10000;

void glist_init(t_glist *x)
{
        /* zero out everyone except "pd" field */
    memset(((char *)x) + sizeof(x->gl_pd), 0, sizeof(*x) - sizeof(x->gl_pd));
    x->gl_stub = gstub_new(x, 0);
    x->gl_valid = ++glist_valid;
    x->gl_xlabel = (t_symbol **)t_getbytes(0);
    x->gl_ylabel = (t_symbol **)t_getbytes(0);
}

    /* make a new glist.  It will either be a "root" canvas or else
353
    it appears as a "text" object in another window (canvas_getcurrent() 
Miller Puckette's avatar
Miller Puckette committed
354
355
356
357
358
359
360
361
362
    tells us which.) */
t_canvas *canvas_new(void *dummy, t_symbol *sel, int argc, t_atom *argv)
{
    t_canvas *x = (t_canvas *)pd_new(canvas_class);
    t_canvas *owner = canvas_getcurrent();
    t_symbol *s = &s_;
    int vis = 0, width = GLIST_DEFCANVASWIDTH, height = GLIST_DEFCANVASHEIGHT;
    int xloc = 0, yloc = GLIST_DEFCANVASYLOC;
    int font = (owner ? owner->gl_font : sys_defaultfont);
363

Miller Puckette's avatar
Miller Puckette committed
364
    glist_init(x);
365
    //x->gl_magic_glass = magicGlass_new(x);
Miller Puckette's avatar
Miller Puckette committed
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
    x->gl_obj.te_type = T_OBJECT;
    if (!owner)
        canvas_addtolist(x);
    /* post("canvas %lx, owner %lx", x, owner); */

    if (argc == 5)  /* toplevel: x, y, w, h, font */
    {
        xloc = atom_getintarg(0, argc, argv);
        yloc = atom_getintarg(1, argc, argv);
        width = atom_getintarg(2, argc, argv);
        height = atom_getintarg(3, argc, argv);
        font = atom_getintarg(4, argc, argv);
    }
    else if (argc == 6)  /* subwindow: x, y, w, h, name, vis */
    {
        xloc = atom_getintarg(0, argc, argv);
        yloc = atom_getintarg(1, argc, argv);
        width = atom_getintarg(2, argc, argv);
        height = atom_getintarg(3, argc, argv);
        s = atom_getsymbolarg(4, argc, argv);
        vis = atom_getintarg(5, argc, argv);
    }
        /* (otherwise assume we're being created from the menu.) */

    if (canvas_newdirectory->s_name[0])
    {
        static int dollarzero = 1000;
        t_canvasenvironment *env = x->gl_env =
            (t_canvasenvironment *)getbytes(sizeof(*x->gl_env));
        if (!canvas_newargv)
            canvas_newargv = getbytes(0);
        env->ce_dir = canvas_newdirectory;
        env->ce_argc = canvas_newargc;
        env->ce_argv = canvas_newargv;
        env->ce_dollarzero = dollarzero++;
        env->ce_path = 0;
        canvas_newdirectory = &s_;
        canvas_newargc = 0;
        canvas_newargv = 0;
    }
    else x->gl_env = 0;

    if (yloc < GLIST_DEFCANVASYLOC)
        yloc = GLIST_DEFCANVASYLOC;
    if (xloc < 0)
        xloc = 0;
    x->gl_x1 = 0;
    x->gl_y1 = 0;
    x->gl_x2 = 1;
    x->gl_y2 = 1;
    canvas_setbounds(x, xloc, yloc, xloc + width, yloc + height);
    x->gl_owner = owner;
    x->gl_name = (*s->s_name ? s : 
        (canvas_newfilename ? canvas_newfilename : gensym("Pd")));
420
    canvas_bind(x);
Miller Puckette's avatar
Miller Puckette committed
421
    x->gl_loading = 1;
422
    //fprintf(stderr,"loading = 1 .x%lx owner=.x%lx\n", (t_int)x, (t_int)x->gl_owner);
Miller Puckette's avatar
Miller Puckette committed
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
    x->gl_goprect = 0;      /* no GOP rectangle unless it's turned on later */
        /* cancel "vis" flag if we're a subpatch of an
         abstraction inside another patch.  A separate mechanism prevents
         the toplevel abstraction from showing up. */
    if (vis && gensym("#X")->s_thing && 
        ((*gensym("#X")->s_thing) == canvas_class))
    {
        t_canvas *zzz = (t_canvas *)(gensym("#X")->s_thing);
        while (zzz && !zzz->gl_env)
            zzz = zzz->gl_owner;
        if (zzz && canvas_isabstraction(zzz) && zzz->gl_owner)
            vis = 0;
    }
    x->gl_willvis = vis;
    x->gl_edit = !strncmp(x->gl_name->s_name, "Untitled", 8);
    x->gl_font = sys_nearestfontsize(font);
    pd_pushsym(&x->gl_pd);
440

441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
    //dpsaha@vt.edu gop resize

    //resize blob
    t_scalehandle *sh;
    char buf[64];
    x->x_handle = pd_new(scalehandle_class);
    sh = (t_scalehandle *)x->x_handle;
    sh->h_master = (t_gobj*)x;
    sprintf(buf, "_h%lx", (t_int)sh);
    pd_bind(x->x_handle, sh->h_bindsym = gensym(buf));
    sprintf(sh->h_outlinetag, "h%lx", (t_int)sh);
    sh->h_dragon = 0;
    sh->h_scale = 1;
    x->scale_offset_x = 0;
    x->scale_offset_y = 0;
    x->scale_vis = 0;
    
    //move blob    
    t_scalehandle *mh;
    char mbuf[64];
    x->x_mhandle = pd_new(scalehandle_class);
    mh = (t_scalehandle *)x->x_mhandle;
    mh->h_master = (t_gobj*)x;
    sprintf(mbuf, "_h%lx", (t_int)mh);
    pd_bind(x->x_mhandle, mh->h_bindsym = gensym(mbuf));
    sprintf(mh->h_outlinetag, "h%lx", (t_int)mh);
    mh->h_dragon = 0;
    mh->h_scale = 0;
    x->move_offset_x = 0;
    x->move_offset_y = 0;
    x->move_vis = 0;

    x->u_queue = canvas_undo_init(x);
474

Miller Puckette's avatar
Miller Puckette committed
475
476
477
478
479
480
481
    return(x);
}

void canvas_setgraph(t_glist *x, int flag, int nogoprect);

static void canvas_coords(t_glist *x, t_symbol *s, int argc, t_atom *argv)
{
482
483
    //IB: first delete the graph in case we are downsizing the object size via script
    canvas_setgraph(x, 0, 0);
484

Miller Puckette's avatar
Miller Puckette committed
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
    x->gl_x1 = atom_getfloatarg(0, argc, argv);
    x->gl_y1 = atom_getfloatarg(1, argc, argv);
    x->gl_x2 = atom_getfloatarg(2, argc, argv);
    x->gl_y2 = atom_getfloatarg(3, argc, argv);
    x->gl_pixwidth = atom_getintarg(4, argc, argv);
    x->gl_pixheight = atom_getintarg(5, argc, argv);
    if (argc <= 7)
        canvas_setgraph(x, atom_getintarg(6, argc, argv), 1);
    else
    {
        x->gl_xmargin = atom_getintarg(7, argc, argv);
        x->gl_ymargin = atom_getintarg(8, argc, argv);
        canvas_setgraph(x, atom_getintarg(6, argc, argv), 0);
    }
}

    /* make a new glist and add it to this glist.  It will appear as
    a "graph", not a text object.  */
t_glist *glist_addglist(t_glist *g, t_symbol *sym,
504
505
    t_float x1, t_float y1, t_float x2, t_float y2,
    t_float px1, t_float py1, t_float px2, t_float py2)
Miller Puckette's avatar
Miller Puckette committed
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
{
    static int gcount = 0;
    int zz;
    int menu = 0;
    char *str;
    t_glist *x = (t_glist *)pd_new(canvas_class);
    glist_init(x);
    x->gl_obj.te_type = T_OBJECT;
    if (!*sym->s_name)
    {
        char buf[40];
        sprintf(buf, "graph%d", ++gcount);
        sym = gensym(buf);
        menu = 1;
    }
    else if (!strncmp((str = sym->s_name), "graph", 5)
        && (zz = atoi(str + 5)) > gcount)
            gcount = zz;
        /* in 0.34 and earlier, the pixel rectangle and the y bounds were
        reversed; this would behave the same, except that the dialog window
        would be confusing.  The "correct" way is to have "py1" be the value
        that is higher on the screen. */
    if (py2 < py1)
    {
530
        t_float zz;
Miller Puckette's avatar
Miller Puckette committed
531
532
533
534
535
536
537
538
539
        zz = y2;
        y2 = y1;
        y1 = zz;
        zz = py2;
        py2 = py1;
        py1 = zz;
    }
    if (x1 == x2 || y1 == y2)
        x1 = 0, x2 = 100, y1 = 1, y2 = -1;
540
541
    if (px1 != 0 && px2 == 0) px2 = px1 + GLIST_DEFGRAPHWIDTH;
    if (py1 != 0 && py2 == py1) py2 = py1 + GLIST_DEFGRAPHHEIGHT;
Miller Puckette's avatar
Miller Puckette committed
542
543
544
    if (px1 >= px2 || py1 >= py2)
        px1 = 100, py1 = 20, px2 = 100 + GLIST_DEFGRAPHWIDTH,
            py2 = 20 + GLIST_DEFGRAPHHEIGHT;
545

Miller Puckette's avatar
Miller Puckette committed
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
    x->gl_name = sym;
    x->gl_x1 = x1;
    x->gl_x2 = x2;
    x->gl_y1 = y1;
    x->gl_y2 = y2;
    x->gl_obj.te_xpix = px1;
    x->gl_obj.te_ypix = py1;
    x->gl_pixwidth = px2 - px1;
    x->gl_pixheight = py2 - py1;
    x->gl_font =  (canvas_getcurrent() ?
        canvas_getcurrent()->gl_font : sys_defaultfont);
    x->gl_screenx1 = x->gl_screeny1 = 0;
    x->gl_screenx2 = 450;
    x->gl_screeny2 = 300;
    x->gl_owner = g;
561
    canvas_bind(x);
Miller Puckette's avatar
Miller Puckette committed
562
563
564
565
566
567
568
    x->gl_isgraph = 1;
    x->gl_goprect = 0;
    x->gl_obj.te_binbuf = binbuf_new();
    binbuf_addv(x->gl_obj.te_binbuf, "s", gensym("graph"));
    if (!menu)
        pd_pushsym(&x->gl_pd);
    glist_add(g, &x->gl_gobj);
569
    if (!do_not_redraw) sys_vgui("pdtk_canvas_getscroll .x%lx.c\n", (long unsigned int)glist_getcanvas(g));
Miller Puckette's avatar
Miller Puckette committed
570
571
572
    return (x);
}

573
574
extern int we_are_undoing;

Miller Puckette's avatar
Miller Puckette committed
575
576
577
    /* call glist_addglist from a Pd message */
void glist_glist(t_glist *g, t_symbol *s, int argc, t_atom *argv)
{
578
    if (canvas_hasarray(g)) return;
579
    pd_vmess(&g->gl_pd, gensym("editmode"), "i", 1);
580
    t_symbol *sym = atom_getsymbolarg(0, argc, argv);
581
582
    /* if we wish to put a graph where the mouse is we need to replace bogus name */
    if (!strcmp(sym->s_name, "NULL")) sym = &s_;  
583
584
585
586
587
588
589
590
    t_float x1 = atom_getfloatarg(1, argc, argv);  
    t_float y1 = atom_getfloatarg(2, argc, argv);  
    t_float x2 = atom_getfloatarg(3, argc, argv);  
    t_float y2 = atom_getfloatarg(4, argc, argv);  
    t_float px1 = atom_getfloatarg(5, argc, argv);  
    t_float py1 = atom_getfloatarg(6, argc, argv);  
    t_float px2 = atom_getfloatarg(7, argc, argv);  
    t_float py2 = atom_getfloatarg(8, argc, argv);
Miller Puckette's avatar
Miller Puckette committed
591
    glist_addglist(g, sym, x1, y1, x2, y2, px1, py1, px2, py2);
592
593
594
    if (!we_are_undoing)
        canvas_undo_add(glist_getcanvas(g), 9, "create",
            (void *)canvas_undo_set_create(glist_getcanvas(g)));
Miller Puckette's avatar
Miller Puckette committed
595
596
597
598
599
600
}

    /* return true if the glist should appear as a graph on parent;
    otherwise it appears as a text box. */
int glist_isgraph(t_glist *x)
{
601
    // testing to see if we have an array and force hiding text (later update GUI accordingly)
602
603
    // we likely need this to silently update legacy arrays
    // (no regressions are expected but this needs to be tested)
604
605
606
607
608
609
    t_gobj *g = x->gl_list;
    int hasarray = 0;
    while (g) {
        if (pd_class(&g->g_pd) == garray_class) hasarray = 1;
        g = g->g_next;
    }
610
611
    if (hasarray)  {
        x->gl_isgraph = 1;
612
        x->gl_hidetext = 1;
613
    }
614
    return (x->gl_isgraph|(x->gl_hidetext<<1));
Miller Puckette's avatar
Miller Puckette committed
615
616
617
618
}

    /* This is sent from the GUI to inform a toplevel that its window has been
    moved or resized. */
619
void canvas_setbounds(t_canvas *x, int x1, int y1, int x2, int y2)
Miller Puckette's avatar
Miller Puckette committed
620
{
621
    //fprintf(stderr,"canvas_setbounds %d %d %d %d\n", x1, y1, x2, y2);
622

Miller Puckette's avatar
Miller Puckette committed
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
    int heightwas = y2 - y1;
    int heightchange = y2 - y1 - (x->gl_screeny2 - x->gl_screeny1);
    if (x->gl_screenx1 == x1 && x->gl_screeny1 == y1 &&
        x->gl_screenx2 == x2 && x->gl_screeny2 == y2)
            return;
    x->gl_screenx1 = x1;
    x->gl_screeny1 = y1;
    x->gl_screenx2 = x2;
    x->gl_screeny2 = y2;
    if (!glist_isgraph(x) && (x->gl_y2 < x->gl_y1)) 
    {
            /* if it's flipped so that y grows upward,
            fix so that zero is bottom edge and redraw.  This is
            only appropriate if we're a regular "text" object on the
            parent. */
638
        t_float diff = x->gl_y1 - x->gl_y2;
Miller Puckette's avatar
Miller Puckette committed
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
        t_gobj *y;
        x->gl_y1 = heightwas * diff;
        x->gl_y2 = x->gl_y1 - diff;
            /* and move text objects accordingly; they should stick
            to the bottom, not the top. */
        for (y = x->gl_list; y; y = y->g_next)
            if (pd_checkobject(&y->g_pd))
                gobj_displace(y, x, 0, heightchange);
        canvas_redraw(x);
    }
}

t_symbol *canvas_makebindsym(t_symbol *s)
{
    char buf[MAXPDSTRING];
    strcpy(buf, "pd-");
    strcat(buf, s->s_name);
    return (gensym(buf));
}

void canvas_reflecttitle(t_canvas *x)
{
661
    //fprintf(stderr,"canvas_reflecttitle\n");
Miller Puckette's avatar
Miller Puckette committed
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
    char namebuf[MAXPDSTRING];
    t_canvasenvironment *env = canvas_getenv(x);
    if (env->ce_argc)
    {
        int i;
        strcpy(namebuf, " (");
        for (i = 0; i < env->ce_argc; i++)
        {
            if (strlen(namebuf) > MAXPDSTRING/2 - 5)
                break;
            if (i != 0)
                strcat(namebuf, " ");
            atom_string(&env->ce_argv[i], namebuf + strlen(namebuf), 
                MAXPDSTRING/2);
        }
        strcat(namebuf, ")");
    }
    else namebuf[0] = 0;
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
680
681
682
683
684
#ifdef __APPLE__
    sys_vgui("wm attributes .x%lx -modified %d -titlepath {%s/%s}\n",
        x, x->gl_dirty, canvas_getdir(x)->s_name, x->gl_name->s_name);
    sys_vgui("wm title .x%lx {%s%s}\n", x, x->gl_name->s_name, namebuf);
#else
685
686
687
688
689
690
691
692
    //if(glist_havewindow(x) || !x->gl_isgraph || x->gl_isgraph && x->gl_havewindow || x->gl_loading || x->gl_dirty) {

    /*fprintf(stderr,"%d %d %d %d %d\n", glist_istoplevel(x), !x->gl_isgraph,
    x->gl_isgraph && x->gl_havewindow, x->gl_loading,
    x->gl_dirty);*/

    sys_vgui("wm title .x%lx {%s%c%s - %s}\n", 
        x, x->gl_name->s_name, (x->gl_dirty? '*' : ' '), namebuf,
Miller Puckette's avatar
Miller Puckette committed
693
            canvas_getdir(x)->s_name);
694
//}
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
695
#endif
Miller Puckette's avatar
Miller Puckette committed
696
697
}

Miller Puckette's avatar
Miller Puckette committed
698
699
    /* mark a glist dirty or clean */
void canvas_dirty(t_canvas *x, t_floatarg n)
Miller Puckette's avatar
Miller Puckette committed
700
701
{
    t_canvas *x2 = canvas_getrootfor(x);
702
703
    if (glist_amreloadingabstractions)
        return;
Miller Puckette's avatar
Miller Puckette committed
704
705
706
    if ((unsigned)n != x2->gl_dirty)
    {
        x2->gl_dirty = n;
Miller Puckette's avatar
test7    
Miller Puckette committed
707
708
        if (glist_isvisible(x2))
            canvas_reflecttitle(x2);
Miller Puckette's avatar
Miller Puckette committed
709
710
711
    }
}

712
713
714
715
716
717
718
719
720
721
extern t_canvas *sc_mouseover_canvas;
void canvas_scalar_mouseover(t_canvas *x, t_symbol *sendsym, t_floatarg state)
{
    t_atom at[1];
    SETFLOAT(&at[0], state);
    sc_mouseover_canvas = x;
    if (sendsym->s_thing) typedmess(sendsym->s_thing, gensym("mouseover"),
        1, at);
}

722
723
extern void canvas_check_nlet_highlights(t_canvas *x);

724
725
726
/*********** dpsaha@vt.edu resize move hooks ****************/
void canvas_draw_gop_resize_hooks(t_canvas* x)
{
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
    t_scalehandle *sh = (t_scalehandle *)(x->x_handle);
    t_scalehandle *mh = (t_scalehandle *)(x->x_mhandle);
    //in case we are an array which does not initialize its hooks
    if (!sh || !mh) return;
    if(x->gl_edit && glist_isvisible(x) && glist_istoplevel(x) &&
        x->gl_goprect && !x->gl_editor->e_selection)
    {
        //Drawing and Binding Resize_Blob for GOP
        //fprintf(stderr,"draw_gop_resize_hooks %lx %lx\n",
        //    (t_int)x, (t_int)glist_getcanvas(x));
        sprintf(sh->h_pathname, ".x%lx.h%lx", (t_int)x, (t_int)sh);
        sys_vgui("destroy %s\n", sh->h_pathname);    
        sys_vgui(".x%lx.c delete GOP_resblob\n", x);    
        sys_vgui("canvas %s -width %d -height %d -bg $pd_colors(selection) "
                 "-bd 0 -cursor bottom_right_corner\n",
            sh->h_pathname, SCALEHANDLE_WIDTH, SCALEHANDLE_HEIGHT);
        sys_vgui(".x%x.c create window %d %d -anchor nw "
                 "-width %d -height %d -window %s "
                 "-tags {%lxSCALE %lxGOP GOP_resblob}\n",
             x, x->gl_xmargin + x->gl_pixwidth - SCALEHANDLE_WIDTH - 1,
             x->gl_ymargin + 3 + x->gl_pixheight - SCALEHANDLE_HEIGHT - 4,
             SCALEHANDLE_WIDTH, SCALEHANDLE_HEIGHT,
             sh->h_pathname, x, x);
        
        sys_vgui("bind %s <Button> {pd [concat %s _click 1 %%x %%y \\;]}\n",
                 sh->h_pathname, sh->h_bindsym->s_name);
        sys_vgui("bind %s <ButtonRelease> {pd [concat %s _click 0 0 0 \\;]}\n",
                 sh->h_pathname, sh->h_bindsym->s_name);
        sys_vgui("bind %s <Motion> {pd [concat %s _motion %%x %%y \\;]}\n",
                 sh->h_pathname, sh->h_bindsym->s_name);

        //Drawing and Binding Move_Blob for GOP
        sprintf(mh->h_pathname, ".x%lx.h%lx", (t_int)x, (t_int)mh);
        sys_vgui("destroy %s\n", mh->h_pathname);
        sys_vgui(".x%lx.c delete GOP_movblob\n", x);    
        sys_vgui("canvas %s -width %d -height %d -bg $pd_colors(selection) "
                 "-bd 0 -cursor crosshair\n",
            mh->h_pathname, SCALEHANDLE_WIDTH, SCALEHANDLE_HEIGHT);
        sys_vgui(".x%x.c create window %d %d -anchor nw -width %d -height %d "
                 "-window %s -tags {%lxMOVE %lxGOP GOP_movblob}\n",
            x, x->gl_xmargin + 2 ,
            x->gl_ymargin + 2 ,
            SCALEHANDLE_WIDTH, SCALEHANDLE_HEIGHT,
            mh->h_pathname, x, x);
        
        sys_vgui("bind %s <Button> {pd [concat %s _click 1 %%x %%y \\;]}\n",
                 mh->h_pathname, mh->h_bindsym->s_name);
        sys_vgui("bind %s <ButtonRelease> {pd [concat %s _click 0 0 0 \\;]}\n",
                 mh->h_pathname, mh->h_bindsym->s_name);
        sys_vgui("bind %s <Motion> {pd [concat %s _motion %%x %%y \\;]}\n",
                 mh->h_pathname, mh->h_bindsym->s_name);

    }
    else
    {
        if (sh && sh->h_pathname)
            sys_vgui("destroy %s\n", sh->h_pathname);
        if (mh && mh->h_pathname)
            sys_vgui("destroy %s\n", mh->h_pathname);
        //delete the GOP_resblob and GOP_movblob    
        sys_vgui(".x%lx.c delete GOP_resblob ; "
                 ".x%lx.c delete GOP_movblob ;\n",
            x, x);
    }
    canvas_check_nlet_highlights(x);
792
793
794
}
/*****************************************************************************/

Miller Puckette's avatar
Miller Puckette committed
795
796
void canvas_drawredrect(t_canvas *x, int doit)
{
797
798
    if (doit)
    {
799
        //fprintf(stderr,"GOP %d %d\n", x->gl_pixwidth, x->gl_pixheight);
Miller Puckette's avatar
Miller Puckette committed
800
801
802
803
804
805
806
807
        sys_vgui(".x%lx.c create line\
            %d %d %d %d %d %d %d %d %d %d -fill #ff8080 -tags GOP\n",
            glist_getcanvas(x),
            x->gl_xmargin, x->gl_ymargin,
            x->gl_xmargin + x->gl_pixwidth, x->gl_ymargin,
            x->gl_xmargin + x->gl_pixwidth, x->gl_ymargin + x->gl_pixheight,
            x->gl_xmargin, x->gl_ymargin + x->gl_pixheight,
            x->gl_xmargin, x->gl_ymargin);
808
809
810
811
        //dpsaha@vt.edu for drawing the GOP_blobs
        if (x->gl_goprect && x->gl_edit)
            canvas_draw_gop_resize_hooks(x);
    }
Miller Puckette's avatar
Miller Puckette committed
812
813
814
815
816
817
818
819
    else sys_vgui(".x%lx.c delete GOP\n",  glist_getcanvas(x));
}

    /* the window becomes "mapped" (visible and not miniaturized) or
    "unmapped" (either miniaturized or just plain gone.)  This should be
    called from the GUI after the fact to "notify" us that we're mapped. */
void canvas_map(t_canvas *x, t_floatarg f)
{
820
    //fprintf(stderr,"canvas_map %lx %f\n", (t_int)x, f);
Miller Puckette's avatar
Miller Puckette committed
821
822
823
824
    int flag = (f != 0);
    t_gobj *y;
    if (flag)
    {
825
        //fprintf(stderr,"canvas_map 1\n");
826
827
        //if (!glist_isvisible(x))
        //{
828
        //fprintf(stderr,"canvas_map 1 isvisible\n");
Ivica Ico Bukvic's avatar
Ivica Ico Bukvic committed
829
830
831
832
833
834
835
        t_selection *sel;
        if (!x->gl_havewindow)
        {
            bug("canvas_map");
            canvas_vis(x, 1);
        }

836
837
838
839
        if (!x->gl_list) {
            //if there are no objects on the canvas
            canvas_create_editor(x);
        }
Ivica Ico Bukvic's avatar
Ivica Ico Bukvic committed
840
841
        else for (y = x->gl_list; y; y = y->g_next) {
            gobj_vis(y, x, 1);
842
843
844
845
        }
        if (x->gl_editor && x->gl_editor->e_selection)
            for (sel = x->gl_editor->e_selection; sel; sel = sel->sel_next)
                gobj_select(sel->sel_what, x, 1);
Ivica Ico Bukvic's avatar
Ivica Ico Bukvic committed
846
847
848
849
        x->gl_mapped = 1;
        canvas_drawlines(x);
        if (x->gl_isgraph && x->gl_goprect)
            canvas_drawredrect(x, 1);
850
        sys_vgui("pdtk_canvas_getscroll .x%lx.c\n", x);
851
        //}
Miller Puckette's avatar
Miller Puckette committed
852
853
854
    }
    else
    {
855
        //fprintf(stderr,"canvas_map 0\n");
Miller Puckette's avatar
Miller Puckette committed
856
857
        if (glist_isvisible(x))
        {
858
            /* just clear out the whole canvas */
859
            sys_vgui(".x%lx.c dtag all selected\n", x);
860
            //sys_vgui(".x%lx.c delete all\n", x);
861
            sys_vgui("foreach item [.x%lx.c find withtag {(!root)}] { .x%lx.c delete $item }\n", x, x);
Miller Puckette's avatar
Miller Puckette committed
862
863
864
865
866
867
868
            x->gl_mapped = 0;
        }
    }
}

void canvas_redraw(t_canvas *x)
{
869
870
    if (do_not_redraw) return;
    //fprintf(stderr,"canvas_redraw %lx\n", (t_int)x);
Miller Puckette's avatar
Miller Puckette committed
871
872
    if (glist_isvisible(x))
    {
873
        //fprintf(stderr,"canvas_redraw glist_isvisible=true\n");
Miller Puckette's avatar
Miller Puckette committed
874
875
        canvas_map(x, 0);
        canvas_map(x, 1);
876
877
878
879
880
881

        /* now re-highlight our selection */
        t_selection *y;
        if (x->gl_editor && x->gl_editor->e_selection)
            for (y = x->gl_editor->e_selection; y; y = y->sel_next)
                gobj_select(y->sel_what, x, 1);
Miller Puckette's avatar
Miller Puckette committed
882
883
884
885
886
887
888
    }
}

    /* we call this on a non-toplevel glist to "open" it into its
    own window. */
void glist_menu_open(t_glist *x)
{
889
    if (glist_isvisible(x))
Miller Puckette's avatar
Miller Puckette committed
890
    {
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
        if (!glist_istoplevel(x))
        {
            t_glist *gl2 = x->gl_owner;
            if (!gl2) 
                bug("glist_menu_open"); /* shouldn't happen but not dangerous */
            else
            {
                /* erase ourself in parent window */
                gobj_vis(&x->gl_gobj, gl2, 0);
                /* get rid of our editor (and subeditors) */
                if (x->gl_editor)
                    canvas_destroy_editor(x);
                x->gl_havewindow = 1;
                /* redraw ourself in parent window (blanked out this time) */
                gobj_vis(&x->gl_gobj, gl2, 1);
            }
        }
        else
        {
            sys_vgui("focus .x%lx\n", (t_int)x);
        }
    }
    else
    {
915
        if (x->gl_editor)
916
917
        canvas_destroy_editor(x);
    }
Miller Puckette's avatar
Miller Puckette committed
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
    canvas_vis(x, 1);
}

int glist_isvisible(t_glist *x)
{
    return ((!x->gl_loading) && glist_getcanvas(x)->gl_mapped);
}

int glist_istoplevel(t_glist *x)
{
        /* we consider a graph "toplevel" if it has its own window
        or if it appears as a box in its parent window so that we
        don't draw the actual contents there. */
    return (x->gl_havewindow || !x->gl_isgraph);
}

int glist_getfont(t_glist *x)
{
    while (!x->gl_env)
        if (!(x = x->gl_owner))
            bug("t_canvasenvironment");
    return (x->gl_font);
}

void canvas_free(t_canvas *x)
{
944
    //fprintf(stderr,"canvas_free %lx\n", x);
Miller Puckette's avatar
Miller Puckette committed
945
946
    t_gobj *y;
    int dspstate = canvas_suspend_dsp();
Ivica Ico Bukvic's avatar
Ivica Ico Bukvic committed
947

948
    //canvas_noundo(x);
949
    canvas_undo_free(x);
950

Miller Puckette's avatar
Miller Puckette committed
951
952
953
954
955
956
957
    if (canvas_editing == x)
        canvas_editing = 0;
    if (canvas_whichfind == x)
        canvas_whichfind = 0;
    glist_noselect(x);
    while (y = x->gl_list)
        glist_delete(x, y);
Miller Puckette's avatar
Miller Puckette committed
958
959
    if (x == glist_getcanvas(x))
        canvas_vis(x, 0);
960
961
     if (x->gl_editor)
         canvas_destroy_editor(x);   /* bug workaround; should already be gone*/
962
    canvas_unbind(x);
Miller Puckette's avatar
Miller Puckette committed
963
964
965
966
967
    if (x->gl_env)
    {
        freebytes(x->gl_env->ce_argv, x->gl_env->ce_argc * sizeof(t_atom));
        freebytes(x->gl_env, sizeof(*x->gl_env));
    }
968
    canvas_resume_dsp(dspstate);
Miller Puckette's avatar
Miller Puckette committed
969
970
971
972
973
974
975
976
977
978
979
980
    glist_cleanup(x);
    gfxstub_deleteforkey(x);        /* probably unnecessary */
    if (!x->gl_owner)
        canvas_takeofflist(x);
}

/* ----------------- lines ---------- */

static void canvas_drawlines(t_canvas *x)
{
    t_linetraverser t;
    t_outconnect *oc;
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
981
    int issignal;
982
983
    linetraverser_start(&t, x);
    while (oc = linetraverser_next(&t))
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
984
985
    {
        issignal = (outlet_getsymbol(t.tr_outlet) == &s_signal ? 1 : 0);
986
987
988
989
990
991
992
993
994
995
996
997
998
        if (!(pd_class(&t.tr_ob2->ob_g.g_pd) == preset_node_class &&
              pd_class(&t.tr_ob->ob_g.g_pd) != message_class))
            canvas_drawconnection(glist_getcanvas(x), t.tr_lx1, t.tr_ly1,
                t.tr_lx2, t.tr_ly2, (t_int)oc, issignal);

        /*sys_vgui(".x%lx.c create polyline %d %d %d %d -strokewidth %s "
                   "-stroke %s -tags {l%lx all_cords %s}\n",
              glist_getcanvas(x), t.tr_lx1, t.tr_ly1, t.tr_lx2, t.tr_ly2, 
              (issignal ? "$pd_colors(signal_cord_width)" :
                  "$pd_colors(control_cord_width)"),
              (issignal ? "$pd_colors(signal_cord)" :
                  "$pd_colors(control_cord)"),
              oc);*/
Miller Puckette's avatar
Miller Puckette committed
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
    }
}

void canvas_fixlinesfor(t_canvas *x, t_text *text)
{
    t_linetraverser t;
    t_outconnect *oc;

    linetraverser_start(&t, x);
    while (oc = linetraverser_next(&t))
    {
        if (t.tr_ob == text || t.tr_ob2 == text)
        {
1012
            /*sys_vgui(".x%lx.c coords l%lx %d %d %d %d\n",
Miller Puckette's avatar
Miller Puckette committed
1013
                glist_getcanvas(x), oc,
1014
                    t.tr_lx1, t.tr_ly1, t.tr_lx2, t.tr_ly2);*/
1015
        canvas_updateconnection(x, t.tr_lx1, t.tr_ly1, t.tr_lx2, t.tr_ly2, (t_int)oc);
Miller Puckette's avatar
Miller Puckette committed
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
        }
    }
}

    /* kill all lines for the object */
void canvas_deletelinesfor(t_canvas *x, t_text *text)
{
    t_linetraverser t;
    t_outconnect *oc;
    linetraverser_start(&t, x);
    while (oc = linetraverser_next(&t))
    {
        if (t.tr_ob == text || t.tr_ob2 == text)
        {
1030
            if (x->gl_editor && glist_isvisible(glist_getcanvas(x)))
Miller Puckette's avatar
Miller Puckette committed
1031
1032
1033
1034
1035
1036
1037
1038
1039
            {
                sys_vgui(".x%lx.c delete l%lx\n",
                    glist_getcanvas(x), oc);
            }
            obj_disconnect(t.tr_ob, t.tr_outno, t.tr_ob2, t.tr_inno);
        }
    }
}

1040
1041
    /*  delete all lines for the object 
        for efficient redrawing of connections */
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
void canvas_eraselinesfor(t_canvas *x, t_text *text)
{
    t_linetraverser t;
    t_outconnect *oc;
    linetraverser_start(&t, x);
    while (oc = linetraverser_next(&t))
    {
        if (t.tr_ob == text || t.tr_ob2 == text)
        {
            if (x->gl_editor)
            {
                sys_vgui(".x%lx.c delete l%lx\n",
                    glist_getcanvas(x), oc);
            }
        }
    }
}


Miller Puckette's avatar
Miller Puckette committed
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
    /* kill all lines for one inlet or outlet */
void canvas_deletelinesforio(t_canvas *x, t_text *text,
    t_inlet *inp, t_outlet *outp)
{
    t_linetraverser t;
    t_outconnect *oc;
    linetraverser_start(&t, x);
    while (oc = linetraverser_next(&t))
    {
        if ((t.tr_ob == text && t.tr_outlet == outp) ||
            (t.tr_ob2 == text && t.tr_inlet == inp))
        {
            if (x->gl_editor)
            {
                sys_vgui(".x%lx.c delete l%lx\n",
                    glist_getcanvas(x), oc);
            }
            obj_disconnect(t.tr_ob, t.tr_outno, t.tr_ob2, t.tr_inno);
        }
    }
}

static void canvas_pop(t_canvas *x, t_floatarg fvis)
{
    if (fvis != 0)
        canvas_vis(x, 1);
    pd_popsym(&x->gl_pd);
    canvas_resortinlets(x);
    canvas_resortoutlets(x);
    x->gl_loading = 0;
1091
1092
    //sys_vgui("pdtk_canvas_force_getscroll .x%lx.c\n", x);
    //fprintf(stderr,"loading = 0 .x%lx owner=.x%lx\n", x, x->gl_owner);
Miller Puckette's avatar
Miller Puckette committed
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
}

void canvas_objfor(t_glist *gl, t_text *x, int argc, t_atom *argv);

void canvas_restore(t_canvas *x, t_symbol *s, int argc, t_atom *argv)
{
    t_pd *z;
    if (argc > 3)
    {
        t_atom *ap=argv+3;
        if (ap->a_type == A_SYMBOL)
        {
            t_canvasenvironment *e = canvas_getenv(canvas_getcurrent());
            canvas_rename(x, binbuf_realizedollsym(ap->a_w.w_symbol,
                e->ce_argc, e->ce_argv, 1), 0);
        }
    }
    canvas_pop(x, x->gl_willvis);

    if (!(z = gensym("#X")->s_thing)) error("canvas_restore: out of context");
    else if (*z != canvas_class) error("canvas_restore: wasn't a canvas");
    else
    {
        t_canvas *x2 = (t_canvas *)z;
        x->gl_owner = x2;
        canvas_objfor(x2, &x->gl_obj, argc, argv);
    }
}

1122
void canvas_loadbangsubpatches(t_canvas *x, t_symbol *s)
Miller Puckette's avatar
Miller Puckette committed
1123
1124
{
    t_gobj *y;
1125
    //t_symbol *s = gensym("loadbang");
Miller Puckette's avatar
Miller Puckette committed
1126
1127
    for (y = x->gl_list; y; y = y->g_next)
        if (pd_class(&y->g_pd) == canvas_class)
1128
1129
1130
1131
1132
        {
            if (!canvas_isabstraction((t_canvas *)y))
            {
            //fprintf(stderr,"%lx s:canvas_loadbangsubpatches %s\n",
            //    x, s->s_name);
1133
            canvas_loadbangsubpatches((t_canvas *)y, s);
1134
1135
            }
        }
1136
1137
    for (y = x->gl_list; y; y = y->g_next)
        if ((pd_class(&y->g_pd) != canvas_class) &&
1138
1139
1140
1141
1142
            zgetfn(&y->g_pd, s))
        {
            //fprintf(stderr,"%lx s:obj_loadbang %s\n",x,s->s_name);
            pd_vmess(&y->g_pd, s, "");
        }
Miller Puckette's avatar
Miller Puckette committed
1143
1144
}

1145
static void canvas_loadbangabstractions(t_canvas *x, t_symbol *s)
Miller Puckette's avatar
Miller Puckette committed
1146
1147
{
    t_gobj *y;
1148
    //t_symbol *s = gensym("loadbang");
Miller Puckette's avatar
Miller Puckette committed
1149
1150
    for (y = x->gl_list; y; y = y->g_next)
        if (pd_class(&y->g_pd) == canvas_class)
1151
1152
1153
1154
        {
            if (canvas_isabstraction((t_canvas *)y))
            {
            //fprintf(stderr,"%lx a:canvas_loadbang %s\n",x,s->s_name);
1155
            canvas_loadbangabstractions((t_canvas *)y, s);
1156
1157
1158
1159
1160
1161
1162
1163
1164
            canvas_loadbangsubpatches((t_canvas *)y, s);
            }
            else
            {
                //fprintf(stderr,"%lx a:canvas_loadbangabstractions %s\n",
                //    x, s->s_name);
                canvas_loadbangabstractions((t_canvas *)y, s);
            }
        }
Miller Puckette's avatar
Miller Puckette committed
1165
1166
1167
1168
}

void canvas_loadbang(t_canvas *x)
{
1169
    //t_gobj *y;
1170
1171
    // first loadbang preset hubs and nodes
    //fprintf(stderr,"%lx 0\n", x);
1172
1173
    canvas_loadbangabstractions(x, gensym("pre-loadbang"));
    canvas_loadbangsubpatches(x, gensym("pre-loadbang"));
1174
1175
    //fprintf(stderr,"%lx 1\n", x);
    // then do the regular loadbang
1176
1177
    canvas_loadbangabstractions(x, gensym("loadbang"));
    canvas_loadbangsubpatches(x, gensym("loadbang"));
1178
    //fprintf(stderr,"%lx 2\n", x);
Miller Puckette's avatar
Miller Puckette committed
1179
}
1180

Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
/* JMZ:
 * initbang is emitted after the canvas is done, but before the parent canvas is done
 * therefore, initbangs cannot reach to the outlets
 */
void canvas_initbang(t_canvas *x)
{
    t_gobj *y;
    t_symbol *s = gensym("initbang");
    /* run "initbang" for all subpatches, but NOT for the child abstractions */
    for (y = x->gl_list; y; y = y->g_next)
      if (pd_class(&y->g_pd) == canvas_class)
        {
          if (!canvas_isabstraction((t_canvas *)y))
            canvas_initbang((t_canvas *)y);
        }
Miller Puckette's avatar
Miller Puckette committed
1196

Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
    /* call the initbang()-method for objects that have one */
    for (y = x->gl_list; y; y = y->g_next)
      {
        if ((pd_class(&y->g_pd) != canvas_class) && zgetfn(&y->g_pd, s))
          {
            pd_vmess(&y->g_pd, s, "");
          }
      }
}
/* JMZ:
 * closebang is emitted before the canvas is destroyed
 * and BEFORE subpatches/abstractions in this canvas are destroyed
 */
void canvas_closebang(t_canvas *x)
{
    t_gobj *y;
    t_symbol *s = gensym("closebang");
Miller Puckette's avatar
Miller Puckette committed
1214

Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
    /* call the closebang()-method for objects that have one 
     * but NOT for subpatches/abstractions: these are called separately
     * from g_graph:glist_delete()
     */
    for (y = x->gl_list; y; y = y->g_next)
      {
        if ((pd_class(&y->g_pd) != canvas_class) && zgetfn(&y->g_pd, s))
          {
            pd_vmess(&y->g_pd, s, "");
          }
      }
}
Miller Puckette's avatar
Miller Puckette committed
1227

1228
1229
1230
1231
1232
1233
/* needed for readjustment of garrays */
extern t_array *garray_getarray(t_garray *x);
extern void garray_fittograph(t_garray *x, int n);
extern t_rtext *glist_findrtext(t_glist *gl, t_text *who);
extern void rtext_gettext(t_rtext *x, char **buf, int *bufsize);

Miller Puckette's avatar
Miller Puckette committed
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
static void canvas_relocate(t_canvas *x, t_symbol *canvasgeom,
    t_symbol *topgeom)
{
    int cxpix, cypix, cw, ch, txpix, typix, tw, th;
    if (sscanf(canvasgeom->s_name, "%dx%d+%d+%d", &cw, &ch, &cxpix, &cypix)
        < 4 ||
        sscanf(topgeom->s_name, "%dx%d+%d+%d", &tw, &th, &txpix, &typix) < 4)
        bug("canvas_relocate");
            /* for some reason this is initially called with cw=ch=1 so
            we just suppress that here. */
    if (cw > 5 && ch > 5)
        canvas_setbounds(x, txpix, typix,
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
1246
            txpix + cw, typix + ch);
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
    /* readjust garrays (if any) */
    t_gobj *g, *gg = NULL;
    t_garray *ga = NULL;
    t_array *a = NULL;
    int  num_elem = 0;

    for (g = x->gl_list; g; g = g->g_next)
    {
        //fprintf(stderr, "searching\n");

        //for subpatch garrays
        if (pd_class(&g->g_pd) == garray_class)
        {
            //fprintf(stderr,"found ya\n");
            ga = (t_garray *)g;
            if (ga)
            {
                a = garray_getarray(ga);
                num_elem = a->a_n;
                garray_fittograph(ga, num_elem);
            }
        }
    }
Miller Puckette's avatar
Miller Puckette committed
1270
1271
1272
1273
1274
1275
}

void canvas_popabstraction(t_canvas *x)
{
    newest = &x->gl_pd;
    pd_popsym(&x->gl_pd);
1276
    //x->gl_loading = 1;
1277
    //fprintf(stderr,"loading = 1 .x%lx owner=.x%lx\n", x, x->gl_owner);
Miller Puckette's avatar
Miller Puckette committed
1278
1279
    canvas_resortinlets(x);
    canvas_resortoutlets(x);
1280
    x->gl_loading = 0;
1281
    //fprintf(stderr,"loading = 0 .x%lx owner=.x%lx\n", x, x->gl_owner);
Miller Puckette's avatar
Miller Puckette committed
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
}

void canvas_logerror(t_object *y)
{
#ifdef LATER
    canvas_vis(x, 1);
    if (!glist_isselected(x, &y->ob_g))
        glist_select(x, &y->ob_g);
#endif
}

/* -------------------------- subcanvases ---------------------- */

static void *subcanvas_new(t_symbol *s)
{
    t_atom a[6];
    t_canvas *x, *z = canvas_getcurrent();
1299
    fprintf(stderr,"subcanvas_new current canvas .x%lx\n", (t_int)z);
Miller Puckette's avatar
Miller Puckette committed
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
    if (!*s->s_name) s = gensym("/SUBPATCH/");
    SETFLOAT(a, 0);
    SETFLOAT(a+1, GLIST_DEFCANVASYLOC);
    SETFLOAT(a+2, GLIST_DEFCANVASWIDTH);
    SETFLOAT(a+3, GLIST_DEFCANVASHEIGHT);
    SETSYMBOL(a+4, s);
    SETFLOAT(a+5, 1);
    x = canvas_new(0, 0, 6, a);
    x->gl_owner = z;
    canvas_pop(x, 1);
    return (x);
}

static void canvas_click(t_canvas *x,
    t_floatarg xpos, t_floatarg ypos,
        t_floatarg shift, t_floatarg ctrl, t_floatarg alt)
{
    canvas_vis(x, 1);
}


    /* find out from subcanvas contents how much to fatten the box */
void canvas_fattensub(t_canvas *x,
    int *xp1, int *yp1, int *xp2, int *yp2)
{
    t_gobj *y;
    *xp2 += 50;     /* fake for now */
    *yp2 += 50;
}

static void canvas_rename_method(t_canvas *x, t_symbol *s, int ac, t_atom *av)
{
    if (ac && av->a_type == A_SYMBOL)
        canvas_rename(x, av->a_w.w_symbol, 0);
    else if (ac && av->a_type == A_DOLLSYM)
    {
        t_canvasenvironment *e = canvas_getenv(x);
        canvas_setcurrent(x);
        canvas_rename(x, binbuf_realizedollsym(av->a_w.w_symbol,
            e->ce_argc, e->ce_argv, 1), 0); 
        canvas_unsetcurrent(x);
    }
    else canvas_rename(x, gensym("Pd"), 0);
}

1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
static int forwardmess_recurse = 0;

static void canvas_forwardmess(t_canvas *x, t_symbol *s, int ac, t_atom *av)
{
    if (av[0].a_type != A_FLOAT)
    {
        pd_error(x, "error: canvas: forwardmess: need object index");
        return;
    }
    t_int indexno = (t_int)atom_getfloatarg(0, ac--, av++);
    if (indexno < 0) indexno = 0;
    t_gobj *y;
    t_int i;
    for (i = 0, y = x->gl_list; y && i < indexno; i++)
        y = y->g_next;
    if (!y) return;
    if (forwardmess_recurse++ < 1)
        pd_forwardmess((t_pd *)y, ac, av);
    else
        pd_error(y, "error: canvas: forwardmess can't be in a recursive loop");
    forwardmess_recurse = 0;
}

Miller Puckette's avatar
Miller Puckette committed
1368
1369
1370
1371
1372
1373
1374
/* ------------------ table ---------------------------*/

static int tabcount = 0;

static void *table_new(t_symbol *s, t_floatarg f)
{
    t_atom a[9];
1375
    t_atom ga[4];
Miller Puckette's avatar
Miller Puckette committed
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
    t_glist *gl;
    t_canvas *x, *z = canvas_getcurrent();
    if (s == &s_)
    {
         char  tabname[255];
         t_symbol *t = gensym("table"); 
         sprintf(tabname, "%s%d", t->s_name, tabcount++);
         s = gensym(tabname); 
    }
    if (f <= 1)
        f = 100;
    SETFLOAT(a, 0);
    SETFLOAT(a+1, GLIST_DEFCANVASYLOC);
    SETFLOAT(a+2, 600);
    SETFLOAT(a+3, 400);
    SETSYMBOL(a+4, s);
    SETFLOAT(a+5, 0);
    x = canvas_new(0, 0, 6, a);

    x->gl_owner = z;

        /* create a graph for the table */
    gl = glist_addglist((t_glist*)x, &s_, 0, -1, (f > 1 ? f-1 : 1), 1,
        50, 350, 550, 50);

1401
1402
1403
1404
1405
    SETSYMBOL(ga, s);
    SETFLOAT(ga+1, f);
    SETSYMBOL(ga+2, &s_float);
    SETFLOAT(ga+3, 0);
    graph_array(gl, gensym("array"), 4, ga);
Miller Puckette's avatar
Miller Puckette committed
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418

    canvas_pop(x, 0); 

    return (x);
}

    /* return true if the "canvas" object is an abstraction (so we don't
    save its contents, fogr example.)  */
int canvas_isabstraction(t_canvas *x)
{
    return (x->gl_env != 0);
}

1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
    /* return true if the "canvas" object should be bound to a name */
static int canvas_should_bind(t_canvas *x)
{
        /* FIXME should have a "backwards compatible" mode */
        /* not named "Pd" && (is top level || is subpatch) */
    return strcmp(x->gl_name->s_name, "Pd") && (!x->gl_owner || !x->gl_env);
}

static void canvas_bind(t_canvas *x)
{
    if (canvas_should_bind(x))
        pd_bind(&x->gl_pd, canvas_makebindsym(x->gl_name));
}

static void canvas_unbind(t_canvas *x)
{
    if (canvas_should_bind(x))
        pd_unbind(&x->gl_pd, canvas_makebindsym(x->gl_name));
}

Miller Puckette's avatar
Miller Puckette committed
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
    /* return true if the "canvas" object is a "table". */
int canvas_istable(t_canvas *x)
{
    t_atom *argv = (x->gl_obj.te_binbuf? binbuf_getvec(x->gl_obj.te_binbuf):0);
    int argc = (x->gl_obj.te_binbuf? binbuf_getnatom(x->gl_obj.te_binbuf) : 0);
    int istable = (argc && argv[0].a_type == A_SYMBOL &&
        argv[0].a_w.w_symbol == gensym("table"));
    return (istable);
}

    /* return true if the "canvas" object should be treated as a text
    object.  This is true for abstractions but also for "table"s... */
/* JMZ: add a flag to gop-abstractions to hide the title */
int canvas_showtext(t_canvas *x)
{
    t_atom *argv = (x->gl_obj.te_binbuf? binbuf_getvec(x->gl_obj.te_binbuf):0);
    int argc = (x->gl_obj.te_binbuf? binbuf_getnatom(x->gl_obj.te_binbuf) : 0);
    int isarray = (argc && argv[0].a_type == A_SYMBOL &&
        argv[0].a_w.w_symbol == gensym("graph"));
    if(x->gl_hidetext)
      return 0;
    else
      return (!isarray);
}

    /* get the document containing this canvas */
t_canvas *canvas_getrootfor(t_canvas *x)
{
    if ((!x->gl_owner) || canvas_isabstraction(x))
        return (x);
    else return (canvas_getrootfor(x->gl_owner));
}

/* ------------------------- DSP chain handling ------------------------- */

EXTERN_STRUCT _dspcontext;
#define t_dspcontext struct _dspcontext

void ugen_start(void);
void ugen_stop(void);

t_dspcontext *ugen_start_graph(int toplevel, t_signal **sp,
    int ninlets, int noutlets);
void ugen_add(t_dspcontext *dc, t_object *x);
void ugen_connect(t_dspcontext *dc, t_object *x1, int outno,
    t_object *x2, int inno);
void ugen_done_graph(t_dspcontext *dc);

    /* schedule one canvas for DSP.  This is called below for all "root"
    canvases, but is also called from the "dsp" method for sub-
    canvases, which are treated almost like any other tilde object.  */

static void canvas_dodsp(t_canvas *x, int toplevel, t_signal **sp)
{
    t_linetraverser t;
    t_outconnect *oc;
    t_gobj *y;
    t_object *ob;
    t_symbol *dspsym = gensym("dsp");
    t_dspcontext *dc;    

1500
1501
    /* create a new "DSP graph" object to use in sorting this canvas.
       If we aren't toplevel, there are already other dspcontexts around. */
Miller Puckette's avatar
Miller Puckette committed
1502
1503
1504
1505
1506

    dc = ugen_start_graph(toplevel, sp,
        obj_nsiginlets(&x->gl_obj),
        obj_nsigoutlets(&x->gl_obj));

1507
    /* find all the "dsp" boxes and add them to the graph */
1508

1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
    if (x->gl_editor)
    {
        ob = &x->gl_editor->gl_magic_glass->x_obj;
        if (ob && magicGlass_bound(x->gl_editor->gl_magic_glass))
        {
            //fprintf(stderr,"adding cord inspector to dsp %d\n",
            //    magicGlass_bound(x->gl_magic_glass));
            // this t_canvas could be an array, hence no gl_magic_glass
            ugen_add(dc, ob);
        }
    }
Miller Puckette's avatar
Miller Puckette committed
1520
1521
1522
1523
1524
    
    for (y = x->gl_list; y; y = y->g_next)
        if ((ob = pd_checkobject(&y->g_pd)) && zgetfn(&y->g_pd, dspsym))
            ugen_add(dc, ob);

1525
    /* ... and all dsp interconnections */
Miller Puckette's avatar
Miller Puckette committed
1526
1527
1528
1529
1530
    linetraverser_start(&t, x);
    while (oc = linetraverser_next(&t))
        if (obj_issignaloutlet(t.tr_ob, t.tr_outno))
            ugen_connect(dc, t.tr_ob, t.tr_outno, t.tr_ob2, t.tr_inno);

1531
    /* finally, sort them and add them to the DSP chain */
Miller Puckette's avatar
Miller Puckette committed
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
    ugen_done_graph(dc);
}

static void canvas_dsp(t_canvas *x, t_signal **sp)
{
    canvas_dodsp(x, 0, sp);
}

    /* this routine starts DSP for all root canvases. */
static void canvas_start_dsp(void)
{
    t_canvas *x;
    if (canvas_dspstate) ugen_stop();
    else sys_gui("pdtk_pd_dsp ON\n");
    ugen_start();
    
    for (x = canvas_list; x; x = x->gl_next)
        canvas_dodsp(x, 1, 0);
    
    canvas_dspstate = 1;
}

static void canvas_stop_dsp(void)
{
    if (canvas_dspstate)
    {
        ugen_stop();
        sys_gui("pdtk_pd_dsp OFF\n");
        canvas_dspstate = 0;
    }
}

    /* DSP can be suspended before, and resumed after, operations which
    might affect the DSP chain.  For example, we suspend before loading and
    resume afterward, so that DSP doesn't get resorted for every DSP object
1567
    in the patch. */
Miller Puckette's avatar
Miller Puckette committed
1568
1569
1570
1571

int canvas_suspend_dsp(void)
{
    int rval = canvas_dspstate;
1572
    //fprintf(stderr,"canvas_suspend_dsp %d\n", rval);
Miller Puckette's avatar
Miller Puckette committed
1573
1574
1575
1576
1577
1578
    if (rval) canvas_stop_dsp();
    return (rval);
}

void canvas_resume_dsp(int oldstate)
{
1579
    //fprintf(stderr,"canvas_resume_dsp %d\n", oldstate);
Miller Puckette's avatar
Miller Puckette committed
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
    if (oldstate) canvas_start_dsp();
}

    /* this is equivalent to suspending and resuming in one step. */
void canvas_update_dsp(void)
{
    if (canvas_dspstate) canvas_start_dsp();
}

void glob_dsp(void *dummy, t_symbol *s, int argc, t_atom *argv)
{
    int newstate;
    if (argc)
    {
        newstate = atom_getintarg(0, argc, argv);
        if (newstate && !canvas_dspstate)
        {
            sys_set_audio_state(1);
            canvas_start_dsp();
        }
        else if (!newstate && canvas_dspstate)
        {
            canvas_stop_dsp();
            sys_set_audio_state(0);
        }
    }
    else post("dsp state %d", canvas_dspstate);
}

void *canvas_getblock(t_class *blockclass, t_canvas **canvasp)
{
    t_canvas *canvas = *canvasp;
    t_gobj *g;
    void *ret = 0;
    for (g = canvas->gl_list; g; g = g->g_next)
    {
        if (g->g_pd == blockclass)
            ret = g;
    }
    *canvasp = canvas->gl_owner;
    return(ret);
}
    
/******************* redrawing  data *********************/

    /* redraw all "scalars" (do this if a drawing command is changed.) 
    LATER we'll use the "template" information to select which ones we
    redraw.   Action = 0 for redraw, 1 for draw only, 2 for erase. */
1628
static void glist_redrawall(t_template *template, t_glist *gl, int action)
Miller Puckette's avatar
Miller Puckette committed
1629
{
1630
    //fprintf(stderr,"glist_redrawall\n");
Miller Puckette's avatar
Miller Puckette committed
1631
1632
1633
1634
1635
    t_gobj *g;
    int vis = glist_isvisible(gl);
    for (g = gl->gl_list; g; g = g->g_next)
    {
        t_class *cl;
1636
        if (vis && g->g_pd == scalar_class &&
1637
1638
1639
1640
            ((template == template_findbyname(((t_scalar *)g)->sc_template))
            || template_has_elemtemplate(
                   template_findbyname(((t_scalar *)g)->sc_template),
                       template)))
Miller Puckette's avatar
Miller Puckette committed
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
        {
            if (action == 1)
            {
                if (glist_isvisible(gl))
                    gobj_vis(g, gl, 1);
            }
            else if (action == 2)
            {
                if (glist_isvisible(gl))
                    gobj_vis(g, gl, 0);
            }
            else scalar_redraw((t_scalar *)g, gl);
        }
        else if (g->g_pd == canvas_class)
1655
            glist_redrawall(template, (t_glist *)g, action);
Miller Puckette's avatar
Miller Puckette committed
1656
    }
1657
1658
1659
1660
    if (glist_isselected(glist_getcanvas(gl), (t_gobj *)gl)) {
        sys_vgui("pdtk_select_all_gop_widgets .x%lx %lx %d\n",
            glist_getcanvas(gl), gl, 1);
    }
Miller Puckette's avatar
Miller Puckette committed
1661
1662
1663
1664
1665
1666
1667
1668
}

    /* public interface for above. */
void canvas_redrawallfortemplate(t_template *template, int action)
{
    t_canvas *x;
        /* find all root canvases */
    for (x = canvas_list; x; x = x->gl_next)
1669
        glist_redrawall(template, x, action);
Miller Puckette's avatar
Miller Puckette committed
1670
1671
1672
1673
1674
1675
}

    /* find the template defined by a canvas, and redraw all elements
    for that */
void canvas_redrawallfortemplatecanvas(t_canvas *x, int action)
{
1676
    //fprintf(stderr,"canvas_redrawallfortemplatecanvas\n");
Miller Puckette's avatar
Miller Puckette committed
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
    t_gobj *g;
    t_template *tmpl;
    t_symbol *s1 = gensym("struct");
    for (g = x->gl_list; g; g = g->g_next)
    {
        t_object *ob = pd_checkobject(&g->g_pd);
        t_atom *argv;
        if (!ob || ob->te_type != T_OBJECT ||
            binbuf_getnatom(ob->te_binbuf) < 2)
            continue;
        argv = binbuf_getvec(ob->te_binbuf);
        if (argv[0].a_type != A_SYMBOL || argv[1].a_type != A_SYMBOL
            || argv[0].a_w.w_symbol != s1)
                continue;
1691
        tmpl = template_findbyname(canvas_makebindsym(argv[1].a_w.w_symbol));
Miller Puckette's avatar
Miller Puckette committed
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
        canvas_redrawallfortemplate(tmpl, action);
    }
    canvas_redrawallfortemplate(0, action);
}

/* ------------------------------- declare ------------------------ */

/* put "declare" objects in a patch to tell it about the environment in
which objects should be created in this canvas.  This includes directories to
search ("-path", "-stdpath") and object libraries to load
("-lib" and "-stdlib").  These must be set before the patch containing
the "declare" object is filled in with its contents; so when the patch is
saved,  we throw early messages to the canvas to set the environment
before any objects are created in it. */

static t_class *declare_class;
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
1708
extern t_class *import_class;
Miller Puckette's avatar
Miller Puckette committed
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743

typedef struct _declare
{
    t_object x_obj;
    t_canvas *x_canvas;
    int x_useme;
} t_declare;

static void *declare_new(t_symbol *s, int argc, t_atom *argv)
{
    t_declare *x = (t_declare *)pd_new(declare_class);
    x->x_useme = 1;
    x->x_canvas = canvas_getcurrent();
        /* LATER update environment and/or load libraries */
    return (x);
}

static void declare_free(t_declare *x)
{
    x->x_useme = 0;
        /* LATER update environment */
}

void canvas_savedeclarationsto(t_canvas *x, t_binbuf *b)
{
    t_gobj *y;

    for (y = x->gl_list; y; y = y->g_next)
    {
        if (pd_class(&y->g_pd) == declare_class)
        {
            binbuf_addv(b, "s", gensym("#X"));
            binbuf_addbinbuf(b, ((t_declare *)y)->x_obj.te_binbuf);
            binbuf_addv(b, ";");
        }
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
1744
1745
1746
1747
1748
1749
1750
1751
1752