g_canvas.c 75.3 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

/* --------- 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;

70
71
    /* maintain the list of visible toplevels for the GUI's "windows" menu */
void canvas_updatewindowlist( void)
Miller Puckette's avatar
Miller Puckette committed
72
{
73
    t_canvas *x;
74
75
    if (glist_amreloadingabstractions)  /* not if we're in a reload */
        return;
76
77
78
    gui_start_vmess("gui_set_toplevel_window_list", "s", "dummy");
    gui_start_array();
    for (x = canvas_list; x; x = x->gl_next)
Miller Puckette's avatar
Miller Puckette committed
79
    {
80
        if (!x->gl_owner)
Miller Puckette's avatar
Miller Puckette committed
81
        {
82
83
            /* this is a canvas; if we have a window, put on "windows" list */
            if (x->gl_havewindow)
Miller Puckette's avatar
Miller Puckette committed
84
            {
85
86
                gui_s(x->gl_name->s_name);
                gui_x((long unsigned int)x);
Miller Puckette's avatar
Miller Puckette committed
87
88
89
            }
        }
    }
90
91
    gui_end_array();
    gui_end_vmess();
Miller Puckette's avatar
Miller Puckette committed
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
}

    /* 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
152
            bug("t_canvasenvironment");
Miller Puckette's avatar
Miller Puckette committed
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
    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;
}

172
173
174
175
176
177
178
void canvas_getargs_after_creation(t_canvas *c, int *argcp, t_atom **argvp)
{
    t_canvasenvironment *e = canvas_getenv(c);
    *argcp = e->ce_argc;
    *argvp = e->ce_argv;
}

Miller Puckette's avatar
Miller Puckette committed
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
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)
{
208
209
210
    char interim[FILENAME_MAX];
    sys_expandpathelems(file, interim);
    //fprintf(stderr,"interim = <%s>\n", interim);
Miller Puckette's avatar
Miller Puckette committed
211
    char *dir = canvas_getenv(x)->ce_dir->s_name;
212
    if (interim[0] == '/' || (interim[0] && interim[1] == ':') || !*dir)
Miller Puckette's avatar
Miller Puckette committed
213
    {
214
        //fprintf(stderr,"root file\n");
215
        strncpy(result, interim, resultsize);
Miller Puckette's avatar
Miller Puckette committed
216
217
218
219
        result[resultsize-1] = 0;
    }
    else
    {
220
        //fprintf(stderr,"relative file\n");
Miller Puckette's avatar
Miller Puckette committed
221
222
223
224
225
226
        int nleft;
        strncpy(result, dir, resultsize);
        result[resultsize-1] = 0;
        nleft = resultsize - strlen(result) - 1;
        if (nleft <= 0) return;
        strcat(result, "/");
227
        strncat(result, interim, nleft);
Miller Puckette's avatar
Miller Puckette committed
228
        result[resultsize-1] = 0;
229
    } 
230
    //fprintf(stderr,"resulting file = <%s>\n", result);          
Miller Puckette's avatar
Miller Puckette committed
231
232
233
234
}

void canvas_rename(t_canvas *x, t_symbol *s, t_symbol *dir)
{
235
    canvas_unbind(x);
Miller Puckette's avatar
Miller Puckette committed
236
    x->gl_name = s;
237
    canvas_bind(x);
Miller Puckette's avatar
Miller Puckette committed
238
239
240
241
242
    if (dir && dir != &s_)
    {
        t_canvasenvironment *e = canvas_getenv(x);
        e->ce_dir = dir;
    }
243
244
245
    if (glist_isvisible(x))
        if (x->gl_havewindow) //was glist_isvisible(x)
            canvas_reflecttitle(x);
Miller Puckette's avatar
Miller Puckette committed
246
247
248
249
250
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
}

/* --------------- 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);
}

341
342
void canvasgop__clickhook(t_scalehandle *sh, int newstate);
void canvasgop__motionhook(t_scalehandle *sh,t_floatarg f1, t_floatarg f2);
343
extern void glist_setlastxy(t_glist *gl, int xval, int yval);
344

345
346
347
348
349
350
351
/* These globals are used to set state for the "canvas" field in a
   struct. We try below to make sure they only get set for the toplevel
   canvas, and then set them to NULL for everything else. */
t_symbol *canvas_field_templatesym; /* for "canvas" data type */
t_word *canvas_field_vec;           /* for "canvas" data type */
t_gpointer *canvas_field_gp;        /* parent for "canvas" data type */

Miller Puckette's avatar
Miller Puckette committed
352
    /* 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
    tells us which.) */
t_canvas *canvas_new(void *dummy, t_symbol *sel, int argc, t_atom *argv)
{
357
358
359
360
361
362
363
364
365
    /* DEBUG
    int d;
    for (d=0; d < argc; d++)
    {
        if (argv[d].a_type == A_FLOAT)
            fprintf(stderr, " %g ", argv[d].a_w.w_float);
        else fprintf(stderr, " %s ", argv[d].a_w.w_symbol->s_name);
    }
    fprintf(stderr,"\n");*/
Miller Puckette's avatar
Miller Puckette committed
366
367
368
369
370
371
    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);
372

Miller Puckette's avatar
Miller Puckette committed
373
    glist_init(x);
374
    //x->gl_magic_glass = magicGlass_new(x);
Miller Puckette's avatar
Miller Puckette committed
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
420
421
422
423
424
425
426
427
428
    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")));
429
    canvas_bind(x);
Miller Puckette's avatar
Miller Puckette committed
430
    x->gl_loading = 1;
431
    x->gl_unloading = 0;
432
    //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
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
    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);
450

451
    //dpsaha@vt.edu gop resize (refactored by mathieu)
452
453
    x-> x_handle = scalehandle_new((t_object *)x,x,1,canvasgop__clickhook,canvasgop__motionhook);
    x->x_mhandle = scalehandle_new((t_object *)x,x,0,canvasgop__clickhook,canvasgop__motionhook);
454
455

    x->u_queue = canvas_undo_init(x);
456
    //glist_setlastxy(x, 20, 20);
457
458
459
460
461
462
463
464
465
466

    x->gl_templatesym = canvas_field_templatesym;
    x->gl_vec = canvas_field_vec;
    if (canvas_field_gp) gpointer_copy(canvas_field_gp, &x->gl_gp);

    // unset the globals in case this was a canvas field
    canvas_field_templatesym = NULL;
    canvas_field_vec = NULL;
    canvas_field_gp = NULL;

Miller Puckette's avatar
Miller Puckette committed
467
468
469
470
471
472
473
    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)
{
474
475
    //IB: first delete the graph in case we are downsizing the object size via script
    canvas_setgraph(x, 0, 0);
476

Miller Puckette's avatar
Miller Puckette committed
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
    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,
496
497
    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
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
{
    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)
    {
522
        t_float zz;
Miller Puckette's avatar
Miller Puckette committed
523
524
525
526
527
528
529
530
531
        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;
532
533
    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
534
535
536
    if (px1 >= px2 || py1 >= py2)
        px1 = 100, py1 = 20, px2 = 100 + GLIST_DEFGRAPHWIDTH,
            py2 = 20 + GLIST_DEFGRAPHHEIGHT;
537

Miller Puckette's avatar
Miller Puckette committed
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
    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;
553
    canvas_bind(x);
Miller Puckette's avatar
Miller Puckette committed
554
555
556
557
558
559
560
    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);
561
    if (!do_not_redraw) scrollbar_update(glist_getcanvas(g));
Ivica Bukvic's avatar
Ivica Bukvic committed
562
    //fprintf(stderr,"    ... %f %f\n", x->gl_x1, x->gl_x2);
Miller Puckette's avatar
Miller Puckette committed
563
564
565
    return (x);
}

566
567
extern int we_are_undoing;

Miller Puckette's avatar
Miller Puckette committed
568
569
570
    /* call glist_addglist from a Pd message */
void glist_glist(t_glist *g, t_symbol *s, int argc, t_atom *argv)
{
571
    if (canvas_hasarray(g)) return;
572
    pd_vmess(&g->gl_pd, gensym("editmode"), "i", 1);
573
    t_symbol *sym = atom_getsymbolarg(0, argc, argv);
574
575
    /* 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_;  
576
577
578
579
580
581
582
583
    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
584
    glist_addglist(g, sym, x1, y1, x2, y2, px1, py1, px2, py2);
585
586
587
    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
588
589
590
591
592
593
}

    /* 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)
{
594
    // testing to see if we have an array and force hiding text (later update GUI accordingly)
595
596
    // we likely need this to silently update legacy arrays
    // (no regressions are expected but this needs to be tested)
597
598
599
600
601
602
    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;
    }
603
604
    if (hasarray)  {
        x->gl_isgraph = 1;
605
        x->gl_hidetext = 1;
606
    }
607
    return (x->gl_isgraph|(x->gl_hidetext<<1));
Miller Puckette's avatar
Miller Puckette committed
608
609
610
611
}

    /* This is sent from the GUI to inform a toplevel that its window has been
    moved or resized. */
612
void canvas_setbounds(t_canvas *x, int x1, int y1, int x2, int y2)
Miller Puckette's avatar
Miller Puckette committed
613
{
614
    //fprintf(stderr,"canvas_setbounds %d %d %d %d\n", x1, y1, x2, y2);
615

Miller Puckette's avatar
Miller Puckette committed
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
    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. */
631
        t_float diff = x->gl_y1 - x->gl_y2;
Miller Puckette's avatar
Miller Puckette committed
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
        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));
}

Jonathan Wilkes's avatar
Jonathan Wilkes committed
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
void canvas_args_to_string(char *namebuf, t_canvas *x)
{
    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;
}

Miller Puckette's avatar
Miller Puckette committed
673
674
675
void canvas_reflecttitle(t_canvas *x)
{
    char namebuf[MAXPDSTRING];
Jonathan Wilkes's avatar
Jonathan Wilkes committed
676
    canvas_args_to_string(namebuf, x);
677
678
    gui_vmess("gui_canvas_set_title", "xsssi",
        x, x->gl_name->s_name,
Jonathan Wilkes's avatar
Jonathan Wilkes committed
679
        namebuf, canvas_getdir(x)->s_name, x->gl_dirty);
Miller Puckette's avatar
Miller Puckette committed
680
681
}

Miller Puckette's avatar
Miller Puckette committed
682
683
    /* mark a glist dirty or clean */
void canvas_dirty(t_canvas *x, t_floatarg n)
Miller Puckette's avatar
Miller Puckette committed
684
685
{
    t_canvas *x2 = canvas_getrootfor(x);
686
687
    if (glist_amreloadingabstractions)
        return;
Miller Puckette's avatar
Miller Puckette committed
688
689
690
    if ((unsigned)n != x2->gl_dirty)
    {
        x2->gl_dirty = n;
691
        if (x2->gl_havewindow) // was glist_isvisible(x2)
Miller Puckette's avatar
test7    
Miller Puckette committed
692
            canvas_reflecttitle(x2);
Miller Puckette's avatar
Miller Puckette committed
693
694
695
    }
}

696
void draw_notify(t_canvas *x, t_symbol *s, int argc, t_atom *argv);
697

698
void canvas_scalar_event(t_canvas *x, t_symbol *s, int argc, t_atom *argv)
699
{
700
701
702
703
704
    /* These events only get sent when we're not in edit mode.  Once
       we get editmode status sync'd in the GUI we can just prevent
       sending any messages when in edit mode. */
    if (!x->gl_edit)
        draw_notify(x, s, argc, argv);
705
706
}

707
708
extern void canvas_check_nlet_highlights(t_canvas *x);

709
710
711
/*********** dpsaha@vt.edu resize move hooks ****************/
void canvas_draw_gop_resize_hooks(t_canvas* x)
{
712
713
    t_scalehandle *sh = (t_scalehandle *)(x->x_handle);
    t_scalehandle *mh = (t_scalehandle *)(x->x_mhandle);
714
    //fprintf(stderr,"draw_gop_resize_hooks START\n");
715
716
717
718
719
720
    //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
721
        //fprintf(stderr,"draw_gop_resize_hooks DRAW %lx %lx\n", (t_int)x, (t_int)glist_getcanvas(x));
722
723
        sprintf(sh->h_pathname, ".x%lx.h%lx", (t_int)x, (t_int)sh);
        sprintf(mh->h_pathname, ".x%lx.h%lx", (t_int)x, (t_int)mh);
724

725
726
727
728
729
730
731
        /* These are handled now in canvas_doclick */
        //scalehandle_draw_select(sh,
        //    -1-x->gl_obj.te_xpix+x->gl_xmargin + x->gl_pixwidth,
        //    -1-x->gl_obj.te_ypix+x->gl_ymargin + x->gl_pixheight/*,GOP_resblob*/);
        //scalehandle_draw_select(mh,
        //    2+SCALEHANDLE_WIDTH -x->gl_obj.te_xpix+x->gl_xmargin,
        //    2+SCALEHANDLE_HEIGHT-x->gl_obj.te_ypix+x->gl_ymargin /*,"GOP_movblob"*/);
732
733
734
735

        /* these constants don't actually reflect the actual size of the
           click rectangle-- we should probably change them... */

736
        scalehandle_draw_select(mh,
737
            SCALEHANDLE_WIDTH - 4, SCALEHANDLE_HEIGHT - 11);
738
739
740
    }
    else
    {
741
        //fprintf(stderr,"draw_gop_resize_hooks ERASE\n");
742
743
        scalehandle_draw_erase(sh);
        scalehandle_draw_erase(mh);
744
745
    }
    canvas_check_nlet_highlights(x);
746
747
748
}
/*****************************************************************************/

Miller Puckette's avatar
Miller Puckette committed
749
750
void canvas_drawredrect(t_canvas *x, int doit)
{
751
752
    if (doit)
    {
753
        int x1=x->gl_xmargin, y1=x->gl_ymargin + sys_legacy;
754
        int x2=x1+x->gl_pixwidth, y2=y1+x->gl_pixheight;
755
756
        gui_vmess("gui_canvas_drawredrect", "xiiii",
            glist_getcanvas(x),
Jonathan Wilkes's avatar
Jonathan Wilkes committed
757
            x1, y1, x2, y2);
758
759
760
761
        //dpsaha@vt.edu for drawing the GOP_blobs
        if (x->gl_goprect && x->gl_edit)
            canvas_draw_gop_resize_hooks(x);
    }
Jonathan Wilkes's avatar
Jonathan Wilkes committed
762
763
    else
    {
764
765
        gui_vmess("gui_canvas_deleteredrect", "x",
            glist_getcanvas(x));
Jonathan Wilkes's avatar
Jonathan Wilkes committed
766
    }
Miller Puckette's avatar
Miller Puckette committed
767
768
769
770
771
772
773
}

    /* 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)
{
774
    //fprintf(stderr,"canvas_map %lx %f\n", (t_int)x, f);
Miller Puckette's avatar
Miller Puckette committed
775
776
777
778
    int flag = (f != 0);
    t_gobj *y;
    if (flag)
    {
Ivica Ico Bukvic's avatar
Ivica Ico Bukvic committed
779
780
781
782
783
784
785
        t_selection *sel;
        if (!x->gl_havewindow)
        {
            bug("canvas_map");
            canvas_vis(x, 1);
        }

786
787
788
789
        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
790
791
        else for (y = x->gl_list; y; y = y->g_next) {
            gobj_vis(y, x, 1);
792
793
794
795
        }
        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
796
797
798
799
        x->gl_mapped = 1;
        canvas_drawlines(x);
        if (x->gl_isgraph && x->gl_goprect)
            canvas_drawredrect(x, 1);
800
        scrollbar_update(x);
Miller Puckette's avatar
Miller Puckette committed
801
802
803
    }
    else
    {
804
        //fprintf(stderr,"canvas_map 0\n");
Miller Puckette's avatar
Miller Puckette committed
805
806
        if (glist_isvisible(x))
        {
807
            /* just clear out the whole canvas */
808
809
            gui_vmess("gui_canvas_erase_all_gobjs", "x",
                x);
Miller Puckette's avatar
Miller Puckette committed
810
811
812
813
814
815
816
            x->gl_mapped = 0;
        }
    }
}

void canvas_redraw(t_canvas *x)
{
817
818
    if (do_not_redraw) return;
    //fprintf(stderr,"canvas_redraw %lx\n", (t_int)x);
Miller Puckette's avatar
Miller Puckette committed
819
820
    if (glist_isvisible(x))
    {
821
        //fprintf(stderr,"canvas_redraw glist_isvisible=true\n");
Miller Puckette's avatar
Miller Puckette committed
822
823
        canvas_map(x, 0);
        canvas_map(x, 1);
824
825
826
827
828
829

        /* 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
830
831
832
833
834
835
836
    }
}

    /* we call this on a non-toplevel glist to "open" it into its
    own window. */
void glist_menu_open(t_glist *x)
{
837
838
839
    /* 20151230: moved to canvas_vis, so that scripted vis calls (e.g. via
       [send pd-abstraction-name.pd] do proper redraws of abstractions */
    /*if (glist_isvisible(x))
Miller Puckette's avatar
Miller Puckette committed
840
    {
841
842
843
844
        if (!glist_istoplevel(x))
        {
            t_glist *gl2 = x->gl_owner;
            if (!gl2) 
845
                bug("glist_menu_open"); // shouldn't happen but not dangerous
846
847
            else
            {
848
                // erase ourself in parent window
849
                gobj_vis(&x->gl_gobj, gl2, 0);
850
                // get rid of our editor (and subeditors)
851
852
853
                if (x->gl_editor)
                    canvas_destroy_editor(x);
                x->gl_havewindow = 1;
854
                // redraw ourself in parent window (blanked out this time)
855
856
857
858
859
                gobj_vis(&x->gl_gobj, gl2, 1);
            }
        }
        else
        {
860
            // Not sure if this needs to get ported... need to test
861
            //sys_vgui("focus .x%lx\n", (t_int)x);
862
863
864
865
        }
    }
    else
    {
866
        if (x->gl_editor)
867
868
        canvas_destroy_editor(x);
    }
869
    */
Miller Puckette's avatar
Miller Puckette committed
870
871
872
873
874
    canvas_vis(x, 1);
}

int glist_isvisible(t_glist *x)
{
875
    return ((!x->gl_loading) && ((x->gl_isgraph && glist_getcanvas(x)->gl_mapped) || (!x->gl_isgraph && x->gl_mapped)));
Miller Puckette's avatar
Miller Puckette committed
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
}

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);
}

894
895
extern void canvas_group_free(t_pd *x);

Miller Puckette's avatar
Miller Puckette committed
896
897
void canvas_free(t_canvas *x)
{
898
    //fprintf(stderr,"canvas_free %lx\n", (t_int)x);
Miller Puckette's avatar
Miller Puckette committed
899
900
    t_gobj *y;
    int dspstate = canvas_suspend_dsp();
Ivica Ico Bukvic's avatar
Ivica Ico Bukvic committed
901

902
    //canvas_noundo(x);
903
    canvas_undo_free(x);
904

Miller Puckette's avatar
Miller Puckette committed
905
906
907
908
909
    if (canvas_editing == x)
        canvas_editing = 0;
    if (canvas_whichfind == x)
        canvas_whichfind = 0;
    glist_noselect(x);
910
    x->gl_unloading = 1;
Miller Puckette's avatar
Miller Puckette committed
911
912
    while (y = x->gl_list)
        glist_delete(x, y);
Miller Puckette's avatar
Miller Puckette committed
913
914
    if (x == glist_getcanvas(x))
        canvas_vis(x, 0);
915
916
    if (x->gl_editor)
        canvas_destroy_editor(x);   /* bug workaround; should already be gone*/
917

918
919
    if (x-> x_handle) scalehandle_free( x->x_handle);
    if (x->x_mhandle) scalehandle_free(x->x_mhandle);
920
    
921
    canvas_unbind(x);
Miller Puckette's avatar
Miller Puckette committed
922
923
924
925
926
    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));
    }
927
    canvas_resume_dsp(dspstate);
928
929
930
    freebytes(x->gl_xlabel, x->gl_nxlabels * sizeof(*(x->gl_xlabel)));
    freebytes(x->gl_ylabel, x->gl_nylabels * sizeof(*(x->gl_ylabel)));
    gstub_cutoff(x->gl_stub);
Miller Puckette's avatar
Miller Puckette committed
931
932
933
    gfxstub_deleteforkey(x);        /* probably unnecessary */
    if (!x->gl_owner)
        canvas_takeofflist(x);
934
935
    if (x->gl_svg)                   /* for groups, free the data */
        canvas_group_free(x->gl_svg);
Miller Puckette's avatar
Miller Puckette committed
936
937
938
939
940
941
942
943
}

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

static void canvas_drawlines(t_canvas *x)
{
    t_linetraverser t;
    t_outconnect *oc;
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
944
    int issignal;
945
946
    linetraverser_start(&t, x);
    while (oc = linetraverser_next(&t))
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
947
948
    {
        issignal = (outlet_getsymbol(t.tr_outlet) == &s_signal ? 1 : 0);
949
950
951
952
        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);
Miller Puckette's avatar
Miller Puckette committed
953
954
955
956
957
958
959
960
961
962
963
964
965
    }
}

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)
        {
966
967
            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
968
969
970
971
972
973
974
975
976
977
978
979
980
981
        }
    }
}

    /* 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)
        {
982
            if (x->gl_editor && glist_isvisible(glist_getcanvas(x)))
Miller Puckette's avatar
Miller Puckette committed
983
            {
984
985
986
987
                /* Still don't see any place where this gets used. Maybe it's
                   used by older externals? Need to test... */
                //sys_vgui(".x%lx.c delete l%lx\n",
                //    glist_getcanvas(x), oc);
988
                /* probably need a gui_vmess here */
Miller Puckette's avatar
Miller Puckette committed
989
990
991
992
993
994
            }
            obj_disconnect(t.tr_ob, t.tr_outno, t.tr_ob2, t.tr_inno);
        }
    }
}

995
996
    /*  delete all lines for the object 
        for efficient redrawing of connections */
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
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)
            {
Jonathan Wilkes's avatar
Jonathan Wilkes committed
1008
1009
                char tagbuf[MAXPDSTRING];
                sprintf(tagbuf, "l%lx", (long unsigned int)oc);
1010
1011
                gui_vmess("gui_canvas_delete_line", "xs",
                    glist_getcanvas(x), tagbuf);
1012
1013
1014
1015
1016
1017
            }
        }
    }
}


Miller Puckette's avatar
Miller Puckette committed
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
    /* 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)
            {
1032
1033
1034
1035
1036
                char buf[MAXPDSTRING];
                sprintf(buf, "l%lx", (long unsigned int)oc);
                gui_vmess("gui_canvas_delete_line", "xs",
                    glist_getcanvas(x),
                    buf);
Miller Puckette's avatar
Miller Puckette committed
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
            }
            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;
1051
    //fprintf(stderr,"loading = 0 .x%lx owner=.x%lx\n", x, x->gl_owner);
Miller Puckette's avatar
Miller Puckette committed
1052
1053
}

1054
1055
1056
1057
1058
1059
1060
1061
extern void *svg_new(t_pd *x, t_symbol *s, int argc, t_atom *argv);
extern t_pd *svg_header(t_pd *x);

static void group_svginit(t_glist *gl)
{
    gl->gl_svg = (t_pd *)(svg_new((t_pd *)gl, gensym("group"), 0, 0));
    t_pd *proxy = svg_header(gl->gl_svg);
    inlet_new(&gl->gl_obj, proxy, 0, 0);
1062
    outlet_new(&gl->gl_obj, &s_anything);
1063
1064
}

Miller Puckette's avatar
Miller Puckette committed
1065
1066
1067
1068
1069
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;
1070
    int is_draw_command = 0;
1071
    //fprintf(stderr,"canvas_restore %lx\n", x);
1072
1073
    /* for [draw group] we add an inlet to the svg attr proxy */
    if (argc > 2 && argv[2].a_w.w_symbol == gensym("draw"))
1074
1075
    {
        group_svginit(x);
1076
        is_draw_command = 1;
1077
    }
1078
    if (argc > 3 || (is_draw_command && argc > 4))
Miller Puckette's avatar
Miller Puckette committed
1079
    {
1080
1081
        int offset = is_draw_command ? 4 : 3;
        t_atom *ap=argv+offset;
Miller Puckette's avatar
Miller Puckette committed
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
        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);
    }
}

1101
void canvas_loadbangsubpatches(t_canvas *x, t_symbol *s)
Miller Puckette's avatar
Miller Puckette committed
1102
1103
{
    t_gobj *y;
1104
    //t_symbol *s = gensym("loadbang");
Miller Puckette's avatar
Miller Puckette committed
1105
1106
    for (y = x->gl_list; y; y = y->g_next)
        if (pd_class(&y->g_pd) == canvas_class)
1107
1108
1109
1110
1111
        {
            if (!canvas_isabstraction((t_canvas *)y))
            {
            //fprintf(stderr,"%lx s:canvas_loadbangsubpatches %s\n",
            //    x, s->s_name);
1112
            canvas_loadbangsubpatches((t_canvas *)y, s);
1113
1114
            }
        }
1115
1116
    for (y = x->gl_list; y; y = y->g_next)
        if ((pd_class(&y->g_pd) != canvas_class) &&
1117
1118
1119
1120
1121
            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
1122
1123
}

1124
static void canvas_loadbangabstractions(t_canvas *x, t_symbol *s)
Miller Puckette's avatar
Miller Puckette committed
1125
1126
{
    t_gobj *y;
1127
    //t_symbol *s = gensym("loadbang");
Miller Puckette's avatar
Miller Puckette committed
1128
1129
    for (y = x->gl_list; y; y = y->g_next)
        if (pd_class(&y->g_pd) == canvas_class)
1130
1131
1132
1133
        {
            if (canvas_isabstraction((t_canvas *)y))
            {
            //fprintf(stderr,"%lx a:canvas_loadbang %s\n",x,s->s_name);
1134
            canvas_loadbangabstractions((t_canvas *)y, s);
1135
1136
1137
1138
1139
1140
1141
1142
1143
            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
1144
1145
1146
1147
}

void canvas_loadbang(t_canvas *x)
{
1148
    //t_gobj *y;
1149
1150
    // first loadbang preset hubs and nodes
    //fprintf(stderr,"%lx 0\n", x);
1151
1152
    canvas_loadbangabstractions(x, gensym("pre-loadbang"));
    canvas_loadbangsubpatches(x, gensym("pre-loadbang"));
1153
1154
    //fprintf(stderr,"%lx 1\n", x);
    // then do the regular loadbang
1155
1156
    canvas_loadbangabstractions(x, gensym("loadbang"));
    canvas_loadbangsubpatches(x, gensym("loadbang"));
1157
    //fprintf(stderr,"%lx 2\n", x);
Miller Puckette's avatar
Miller Puckette committed
1158
}
1159

Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
/* 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
1175

Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
    /* 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
1193

Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
    /* 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
1206

1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
// we use this function to check if the canvas that has sent out the <config>
// signal, meaning it has been resized, if we have scalars in there and
// the canvas has gop enabled, we need to redraw the window to make sure
// scalars scale with the window
void canvas_checkconfig(t_canvas *x)
{
    //fprintf(stderr,"canvas_checkconfig\n");
    t_gobj *y;
    if (x->gl_isgraph)
    {
        for (y = x->gl_list; y; y = y->g_next)
        {
            if (pd_class(&y->g_pd) == scalar_class)
            {
                //fprintf(stderr,"...redrawing\n");
                canvas_redraw(x);
                break;
            }
        }
    }
}

1229
1230
/* needed for readjustment of garrays */
extern t_array *garray_getarray(t_garray *x);
1231
extern void garray_fittograph(t_garray *x, int n, int flag);
1232
1233
1234
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
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
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
1247
            txpix + cw, typix + ch);
1248
    /* readjust garrays (if any) */
Mathieu L Bouchard's avatar
Mathieu L Bouchard committed
1249
    t_gobj *g;
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
    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;
1267
                garray_fittograph(ga, num_elem, 1);
1268
1269
1270
            }
        }
    }
1271
    canvas_checkconfig(x);
Miller Puckette's avatar
Miller Puckette committed
1272
1273
1274
1275
1276
1277
}

void canvas_popabstraction(t_canvas *x)
{
    newest = &x->gl_pd;
    pd_popsym(&x->gl_pd);
1278
    //x->gl_loading = 1;
1279
    //fprintf(stderr,"loading = 1 .x%lx owner=.x%lx\n", x, x->gl_owner);
Miller Puckette's avatar
Miller Puckette committed
1280
1281
    canvas_resortinlets(x);
    canvas_resortoutlets(x);
1282
    x->gl_loading = 0;
1283
    //fprintf(stderr,"loading = 0 .x%lx owner=.x%lx\n", x, x->gl_owner);
Miller Puckette's avatar
Miller Puckette committed
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
}

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();
1301
    //fprintf(stderr,"subcanvas_new current canvas .x%lx\n", (t_int)z);
Miller Puckette's avatar
Miller Puckette committed
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
    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);
}

1315
void *group_new(t_symbol *s)
1316
1317
1318
1319
1320
{
    t_canvas *x = subcanvas_new(s);
    group_svginit(x);
    return (x);
}
Miller Puckette's avatar
Miller Puckette committed
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
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)
{
    *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);
}

1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
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
1375
1376
1377
1378
1379
1380
1381
/* ------------------ table ---------------------------*/

static int tabcount = 0;

static void *table_new(t_symbol *s, t_floatarg f)
{
    t_atom a[9];
1382
    t_atom ga[4];
Miller Puckette's avatar
Miller Puckette committed
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
    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);

1408
1409
1410
1411
1412
    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
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425

    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);
}

1426
1427
1428
1429
1430
    /* 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) */
1431
    return strcmp(x->gl_name->s_name, "Pd"); // && (!x->gl_owner || !x->gl_env);
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
}

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
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
1500
1501
1502
1503
1504
1505
1506
    /* 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(