g_scalar.c 30.7 KB
Newer Older
Miller Puckette's avatar
Miller Puckette committed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
/* Copyright (c) 1997-1999 Miller Puckette.
* 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 "scalar" object, which is not a text object, just a
"gobj".  Scalars have templates which describe their structures, which
can contain numbers, sublists, and arrays.

*/

#include <stdlib.h>
#include <string.h>
#include <stdio.h>      /* for read/write to files */
#include "m_pd.h"
#include "g_canvas.h"

t_class *scalar_class;

void word_init(t_word *wp, t_template *template, t_gpointer *gp)
{
    int i, nitems = template->t_n;
    t_dataslot *datatypes = template->t_vec;
    for (i = 0; i < nitems; i++, datatypes++, wp++)
    {
        int type = datatypes->ds_type;
        if (type == DT_FLOAT)
            wp->w_float = 0; 
        else if (type == DT_SYMBOL)
            wp->w_symbol = &s_symbol;
        else if (type == DT_ARRAY)
        {
            wp->w_array = array_new(datatypes->ds_arraytemplate, gp);
        }
        else if (type == DT_LIST)
        {
                /* LATER test this and get it to work */
            wp->w_list = canvas_new(0, 0, 0, 0);
        }
    }
}

void word_restore(t_word *wp, t_template *template,
    int argc, t_atom *argv)
{
    int i, nitems = template->t_n;
    t_dataslot *datatypes = template->t_vec;
    for (i = 0; i < nitems; i++, datatypes++, wp++)
    {
        int type = datatypes->ds_type;
        if (type == DT_FLOAT)
        {
52
            t_float f;
Miller Puckette's avatar
Miller Puckette committed
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
            if (argc)
            {
                f =  atom_getfloat(argv);
                argv++, argc--;
            }
            else f = 0;
            wp->w_float = f; 
        }
        else if (type == DT_SYMBOL)
        {
            t_symbol *s;
            if (argc)
            {
                s =  atom_getsymbol(argv);
                argv++, argc--;
            }
            else s = &s_;
            wp->w_symbol = s;
        }
    }
    if (argc)
        post("warning: word_restore: extra arguments");
}

void word_free(t_word *wp, t_template *template)
{
    int i;
    t_dataslot *dt;
    for (dt = template->t_vec, i = 0; i < template->t_n; i++, dt++)
    {
        if (dt->ds_type == DT_ARRAY)
            array_free(wp[i].w_array);
        else if (dt->ds_type == DT_LIST)
            canvas_free(wp[i].w_list);
    }
}

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
/* some of this code is used in a function in g_canvas.c...
   need to modularize it */
static t_object *template_getstruct(t_template *template)
{
    if (template)
    {
        t_gobj *y;
        t_canvas *c;
        if (c = template_findcanvas(template))
        {
            t_symbol *s1 = gensym("struct");
            for (y = c->gl_list; y; y = y->g_next)
            {
                t_object *ob = pd_checkobject(&y->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_w.w_symbol != s1)
                    continue;
                if (canvas_makebindsym(argv[1].a_w.w_symbol) == template->t_sym)
                    return (ob);
            }
        }
    }
    return (0);
}

int template_hasxy(t_template *template)
{
    t_symbol *zz;
    int xonset, yonset, xtype, ytype, gotx, goty;
    if (!template)
    {
        error("struct: couldn't find template %s", template->t_sym->s_name);
        return 0;
    }
    gotx = template_find_field(template, gensym("x"), &xonset, &xtype, &zz);
    goty = template_find_field(template, gensym("y"), &yonset, &ytype, &zz);
    if ((gotx && (xtype == DT_FLOAT)) &&
        (goty && (ytype == DT_FLOAT)) &&
        (xonset == 0) && (yonset == sizeof(t_word)))
    {
        return 1;
    }
    else
        return 0;
}

140
int template_check_array_fields(t_symbol *structname, t_template *template)
141
{
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
    /* We're calling this from template_cancreate as well as
       gtemplate_cancreate.
       With gtemplate_cancreate, the t_template doesn't exist yet.
       So we send the struct name to see if it matches the name of any
       array field templates that our gtemplate will depend on. If we find
       a match we will refuse to create the gtemplate.
       However, template_cancreate starts from the struct name for a template
       that already exists.  So on the first time through this recursive
       function, there isn't a containing structname yet.
       So we suppress this conditional the first
       time through the recursive loop, and then set the structname for
       all subsequent iterations through the loop. */
    if (structname && structname == template->t_sym)
    {
        return 0;
    }
Mathieu L Bouchard's avatar
Mathieu L Bouchard committed
158
    int i, nitems = template->t_n;
159
160
161
162
    t_dataslot *datatypes = template->t_vec;
    t_template *elemtemplate;
    for (i = 0; i < nitems; i++, datatypes++)
    {
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
        if (datatypes->ds_type == DT_ARRAY)
        {
            elemtemplate = template_findbyname(datatypes->ds_arraytemplate);
            if (!(elemtemplate))
            {
                t_object *ob = template_getstruct(template);
                pd_error(ob, "%s: no such template",
                    datatypes->ds_arraytemplate->s_name);
                return (0);
            }
            else if (elemtemplate->t_sym == structname)
            {
                t_object *ob = template_getstruct(template);
                pd_error(ob, "%s: circular dependency",
                    datatypes->ds_arraytemplate->s_name);
                return (0);
            }
            else
            {
                if (!structname)
                {
                    structname = template->t_sym;
                }
                return (template_check_array_fields(structname, elemtemplate));
            }
        }
189
190
191
192
    }
    return (1);
}

193
194
195
196
197
198
int template_cancreate(t_template *template)
{
    /* we send "0" for the structname since there is no container struct */
    return (template_check_array_fields(0, template));
}

Miller Puckette's avatar
Miller Puckette committed
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
    /* make a new scalar and add to the glist.  We create a "gp" here which
    will be used for array items to point back here.  This gp doesn't do
    reference counting or "validation" updates though; the parent won't go away
    without the contained arrays going away too.  The "gp" is copied out
    by value in the word_init() routine so we can throw our copy away. */

t_scalar *scalar_new(t_glist *owner, t_symbol *templatesym)
{
    t_scalar *x;
    t_template *template;
    t_gpointer gp;
    gpointer_init(&gp);
    template = template_findbyname(templatesym);
    if (!template)
    {
        error("scalar: couldn't find template %s", templatesym->s_name);
        return (0);
    }
217
218
    if (!template_cancreate(template))
        return (0);
Miller Puckette's avatar
Miller Puckette committed
219
220
221
222
223
224
    x = (t_scalar *)getbytes(sizeof(t_scalar) +
        (template->t_n - 1) * sizeof(*x->sc_vec));
    x->sc_gobj.g_pd = scalar_class;
    x->sc_template = templatesym;
    gpointer_setglist(&gp, owner, x);
    word_init(x->sc_vec, template, &gp);
225
226
227
    char buf[50];
    sprintf(buf, ".x%lx", (long unsigned int)x);
    pd_bind(&x->sc_gobj.g_pd, gensym(buf));
Miller Puckette's avatar
Miller Puckette committed
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
    return (x);
}

    /* Pd method to create a new scalar, add it to a glist, and initialize
    it from the message arguments. */

int glist_readscalar(t_glist *x, int natoms, t_atom *vec,
    int *p_nextmsg, int selectit);

void glist_scalar(t_glist *glist,
    t_symbol *classname, t_int argc, t_atom *argv)
{
    t_symbol *templatesym =
        canvas_makebindsym(atom_getsymbolarg(0, argc, argv));
    t_binbuf *b;
    int natoms, nextmsg = 0;
    t_atom *vec;
    if (!template_findbyname(templatesym))
    {
        pd_error(glist, "%s: no such template",
            atom_getsymbolarg(0, argc, argv)->s_name);
        return;
    }

    b = binbuf_new();
    binbuf_restore(b, argc, argv);
    natoms = binbuf_getnatom(b);
    vec = binbuf_getvec(b);
    
    glist_readscalar(glist, natoms, vec, &nextmsg, 0);
    binbuf_free(b);
}

261
262
263
264
265
266
267
268
    /* search template fields recursively to see if the template
       depends on elemtemplate */
int template_has_elemtemplate(t_template *t, t_template *elemtemplate)
{
    int returnval = 0;
    if (t && elemtemplate)
    {
        int i;
269
        t_dataslot *d = t->t_vec;
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
        for (i = 0; i < t->t_n; i++, d++)
        {
            if (d->ds_type == DT_ARRAY)
            {
                if (d->ds_arraytemplate == elemtemplate->t_sym)
                {
                    returnval = 1;
                    break;
                }
                else
                {
                    returnval = template_has_elemtemplate(
                        template_findbyname(d->ds_arraytemplate),
                        elemtemplate);
                }
            }
        }
    }
    return (returnval);
}

Miller Puckette's avatar
Miller Puckette committed
291
/* -------------------- widget behavior for scalar ------------ */
292
void scalar_getbasexy(t_scalar *x, t_float *basex, t_float *basey)
Miller Puckette's avatar
Miller Puckette committed
293
294
295
296
297
298
{
    t_template *template = template_findbyname(x->sc_template);
    *basex = template_getfloat(template, gensym("x"), x->sc_vec, 0);
    *basey = template_getfloat(template, gensym("y"), x->sc_vec, 0);
}

299
300
extern int array_joc;

301
302
303
extern void template_notifyforscalar(t_template *template, t_glist *owner,
    t_scalar *sc, t_symbol *s, int argc, t_atom *argv);

304
305
t_canvas *sc_mouseover_canvas;
static void scalar_mouseover(t_scalar *x, t_floatarg state)
306
{
307
308
309
310
311
312
313
314
    t_atom at[1];
    t_template *template = template_findbyname(x->sc_template);
    if (state)
        template_notifyforscalar(template, sc_mouseover_canvas,
            x, gensym("leave"), 1, at);
    else
        template_notifyforscalar(template, sc_mouseover_canvas,
            x, gensym("enter"), 1, at);
315
316
}

317
318
319
320
321
322
323
324
static void scalar_getgrouprect(t_glist *owner, t_glist *groupcanvas,
    t_word *data, t_template *template, int basex, int basey,
    int *x1, int *x2, int *y1, int *y2)
{
    t_gobj *y;
    for (y = groupcanvas->gl_list; y; y = y->g_next)
    {
        if (pd_class(&y->g_pd) == canvas_class &&
325
            ((t_canvas *)y)->gl_svg)
326
327
328
        {
            /* todo: accumulate basex and basey for correct offset */
            scalar_getgrouprect(owner, (t_glist *)y, data, template,
329
                basex, basey, x1, x2, y1, y2);
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
        }
        else
        {
            t_parentwidgetbehavior *wb = pd_getparentwidget(&y->g_pd);
            int nx1, ny1, nx2, ny2;
            if (!wb) continue;
            (*wb->w_parentgetrectfn)(y, owner,
                data, template, basex, basey,
                &nx1, &ny1, &nx2, &ny2);
            if (nx1 < *x1) *x1 = nx1;
            if (ny1 < *y1) *y1 = ny1;
            if (nx2 > *x2) *x2 = nx2;
            if (ny2 > *y2) *y2 = ny2;
            //fprintf(stderr,"====scalar_getrect x1 %d y1 %d x2 %d y2 %d\n",
            //    x1, y1, x2, y2);
        }
    }
}
 
Miller Puckette's avatar
Miller Puckette committed
349
350
351
static void scalar_getrect(t_gobj *z, t_glist *owner,
    int *xp1, int *yp1, int *xp2, int *yp2)
{
352
    //fprintf(stderr,"scalar_getrect %d\n", array_joc);
Miller Puckette's avatar
Miller Puckette committed
353
    t_scalar *x = (t_scalar *)z;
354

Miller Puckette's avatar
Miller Puckette committed
355
356
357
    t_template *template = template_findbyname(x->sc_template);
    t_canvas *templatecanvas = template_findcanvas(template);
    int x1 = 0x7fffffff, x2 = -0x7fffffff, y1 = 0x7fffffff, y2 = -0x7fffffff;
358
    t_float basex, basey;
359

360
361
362
    // EXPERIMENTAL: we assume that entire canvas is within
    // the rectangle--this is for arrays
    // with "jump on click" enabled TODO: test for other regressions
363
    // (there should not be any
364
    // provided the global variable array_joc is properly maintained)
365
366
    if (glist_istoplevel(owner) && array_joc)
    {
367
        x1 = -0x7fffffff, y1 = -0x7fffffff, x2 = 0x7fffffff, y2 = 0x7fffffff;
Miller Puckette's avatar
Miller Puckette committed
368
    }
369

370
371
    else
    {
372
373
374
        scalar_getbasexy(x, &basex, &basey);
            /* if someone deleted the template canvas, we're just a point */
        if (!templatecanvas)
Miller Puckette's avatar
Miller Puckette committed
375
        {
376
            //fprintf(stderr,"...point\n");
377
378
379
380
381
            x1 = x2 = glist_xtopixels(owner, basex);
            y1 = y2 = glist_ytopixels(owner, basey);
        }
        else
        {
382
383
384
385
386
387
388
389
390
            /* todo: bad flow with internal return here. make it cleaner */
            if (x->sc_bboxcache)
            {
                *xp1 = x->sc_x1;
                *yp1 = x->sc_y1;
                *xp2 = x->sc_x2;
                *yp2 = x->sc_y2;
                return;
            }
391
392
            x1 = y1 = 0x7fffffff;
            x2 = y2 = -0x7fffffff;
393
            scalar_getgrouprect(owner, templatecanvas, x->sc_vec, template,
394
395
                basex, basey, &x1, &x2, &y1, &y2);
            if (x2 < x1 || y2 < y1)
396
                x1 = y1 = x2 = y2 = 0;
Miller Puckette's avatar
Miller Puckette committed
397
398
        }
    }
399
400
    //fprintf(stderr,"FINAL scalar_getrect x1 %d y1 %d x2 %d y2 %d\n",
    //    x1, y1, x2, y2);
401
402
403
404
405
    *xp1 = x->sc_x1 = x1;
    *yp1 = x->sc_y1 = y1;
    *xp2 = x->sc_x2 = x2;
    *yp2 = x->sc_y2 = y2; 
    x->sc_bboxcache = 1;
Miller Puckette's avatar
Miller Puckette committed
406
407
}

408
void scalar_drawselectrect(t_scalar *x, t_glist *glist, int state)
Miller Puckette's avatar
Miller Puckette committed
409
{
410
    //fprintf(stderr,"scalar_drawselecterect%d\n", state);
Miller Puckette's avatar
Miller Puckette committed
411
412
413
414
415
416
    if (state)
    {
        int x1, y1, x2, y2;
       
        scalar_getrect(&x->sc_gobj, glist, &x1, &y1, &x2, &y2);
        x1--; x2++; y1--; y2++;
417
418
419
        if (glist_istoplevel(glist))
            sys_vgui(".x%lx.c create prect %d %d %d %d "
                     "-strokewidth 1 -stroke $pd_colors(selection) "
420
                     "-tags {select%lx selected}\n",
421
422
                    glist_getcanvas(glist), x1, y1, x2, y2,
                    x);
Miller Puckette's avatar
Miller Puckette committed
423
424
425
    }
    else
    {
426
427
        if (glist_istoplevel(glist))
            sys_vgui(".x%lx.c delete select%lx\n", glist_getcanvas(glist), x);
Miller Puckette's avatar
Miller Puckette committed
428
429
430
    }
}

431
/* This is a workaround.  Since scalars are contained within a tkpath
432
433
434
435
436
437
438
439
440
441
442
443
   group, and since tkpath groups don't have coords, we can't just use
   the same "selected" tag that is used to move all other Pd objects. That
   would move scalars in their local coordinate system, which is wrong
   for transformed objects. For example, if a rectangle is rotated 45 and
   we try to do a [canvas move 10 0] command on it, it would get moved to
   the northeast instead of to the right!

   Instead, we tag selected scalars with the "scalar_selected" tag. Then in
   the GUI we use that tag to loop through and change each scalar's group
   matrix, and add (dx,dy) to its current translation values. The scalar
   group matrix .scalar%lx isn't accessible by the user, so it will only
   ever contain these translation values.
444
445
*/
void scalar_select(t_gobj *z, t_glist *owner, int state)
Miller Puckette's avatar
Miller Puckette committed
446
{
447
    //fprintf(stderr,"scalar_select %d\n", state);
Miller Puckette's avatar
Miller Puckette committed
448
449
450
451
    t_scalar *x = (t_scalar *)z;
    t_template *tmpl;
    t_symbol *templatesym = x->sc_template;
    t_atom at;
452
    //t_canvas *templatecanvas = NULL;
Miller Puckette's avatar
Miller Puckette committed
453
454
455
456
    t_gpointer gp;
    gpointer_init(&gp);
    gpointer_setglist(&gp, owner, x);
    SETPOINTER(&at, &gp);
457
458
    if (tmpl = template_findbyname(templatesym))
    {
Miller Puckette's avatar
Miller Puckette committed
459
460
        template_notify(tmpl, (state ? gensym("select") : gensym("deselect")),
            1, &at);
461
        //templatecanvas = template_findcanvas(tmpl);
462
    }
Miller Puckette's avatar
Miller Puckette committed
463
    gpointer_unset(&gp);
464
465
    if (state)
    {
466
        x->sc_selected = owner;
467
468
        sys_vgui(".x%lx.c addtag selected withtag blankscalar%lx\n",
            glist_getcanvas(owner), x);
469
470
        sys_vgui(".x%lx.c addtag scalar_selected withtag {.scalar%lx}\n",
            glist_getcanvas(owner), x->sc_vec);
471
472
473
    }
    else
    {
474
        x->sc_selected = 0;
475
476
        sys_vgui(".x%lx.c dtag blankscalar%lx selected\n",
            glist_getcanvas(owner), x);
477
478
        sys_vgui(".x%lx.c dtag .scalar%lx scalar_selected\n",
            glist_getcanvas(owner), x->sc_vec);
479
480
481
    }
    //sys_vgui("pdtk_select_all_gop_widgets .x%lx %lx %d\n",
    //    glist_getcanvas(owner), owner, state);
Miller Puckette's avatar
Miller Puckette committed
482
483
484
485
486
    scalar_drawselectrect(x, owner, state);
}

static void scalar_displace(t_gobj *z, t_glist *glist, int dx, int dy)
{
487
    //fprintf(stderr,"scalar_displace\n");
Miller Puckette's avatar
Miller Puckette committed
488
489
490
491
492
493
494
495
496
497
498
499
500
    t_scalar *x = (t_scalar *)z;
    t_symbol *templatesym = x->sc_template;
    t_template *template = template_findbyname(templatesym);
    t_symbol *zz;
    t_atom at[3];
    t_gpointer gp;
    int xonset, yonset, xtype, ytype, gotx, goty;
    if (!template)
    {
        error("scalar: couldn't find template %s", templatesym->s_name);
        return;
    }
    gotx = template_find_field(template, gensym("x"), &xonset, &xtype, &zz);
501
    if ((gotx && (xtype != DT_FLOAT)) || x->sc_selected != glist)
Miller Puckette's avatar
Miller Puckette committed
502
503
        gotx = 0;
    goty = template_find_field(template, gensym("y"), &yonset, &ytype, &zz);
504
    if ((goty && (ytype != DT_FLOAT)) || x->sc_selected != glist)
Miller Puckette's avatar
Miller Puckette committed
505
506
        goty = 0;
    if (gotx)
507
    {
Miller Puckette's avatar
Miller Puckette committed
508
509
        *(t_float *)(((char *)(x->sc_vec)) + xonset) +=
            dx * (glist_pixelstox(glist, 1) - glist_pixelstox(glist, 0));
510
511
512
        x->sc_x1 += dx;
        x->sc_x2 += dx;
    }
Miller Puckette's avatar
Miller Puckette committed
513
    if (goty)
514
    {
Miller Puckette's avatar
Miller Puckette committed
515
516
        *(t_float *)(((char *)(x->sc_vec)) + yonset) +=
            dy * (glist_pixelstoy(glist, 1) - glist_pixelstoy(glist, 0));
517
518
519
        x->sc_y1 += dy;
        x->sc_y2 += dy;
    }
Miller Puckette's avatar
Miller Puckette committed
520
521
522
    gpointer_init(&gp);
    gpointer_setglist(&gp, glist, x);
    SETPOINTER(&at[0], &gp);
523
524
    SETFLOAT(&at[1], (t_float)dx);
    SETFLOAT(&at[2], (t_float)dy);
Miller Puckette's avatar
Miller Puckette committed
525
526
527
528
    template_notify(template, gensym("displace"), 2, at);
    scalar_redraw(x, glist);
}

529
/* Kind of complicated at the moment. If a scalar is in a gop canvas, then
530
   we don't need to update its x/y fields (if it even has them) when displacing
531
532
533
   it.  Otherwise we do.  The member sc_selected is used to store the canvas
   where the selection exists-- if it matches the glist parameter below then we
   know the scalar is directly selected.  If not it's in a gop canvas.
534
*/
535
536
static void scalar_displace_withtag(t_gobj *z, t_glist *glist, int dx, int dy)
{
537
    //fprintf(stderr,"scalar_displace_withtag %lx %d %d\n", (t_int)z, dx, dy);
538
539
540
541
542
543
544
    t_scalar *x = (t_scalar *)z;
    t_symbol *templatesym = x->sc_template;
    t_template *template = template_findbyname(templatesym);
    t_symbol *zz;
    t_atom at[3];
    t_gpointer gp;
    int xonset, yonset, xtype, ytype, gotx, goty;
545
    t_float basex = 0, basey = 0;
546
547
548
549
550
551
    if (!template)
    {
        error("scalar: couldn't find template %s", templatesym->s_name);
        return;
    }
    gotx = template_find_field(template, gensym("x"), &xonset, &xtype, &zz);
552
    if ((gotx && (xtype != DT_FLOAT)) || x->sc_selected != glist)
553
554
        gotx = 0;
    goty = template_find_field(template, gensym("y"), &yonset, &ytype, &zz);
555
    if ((goty && (ytype != DT_FLOAT)) || x->sc_selected != glist)
556
557
        goty = 0;
    if (gotx)
558
    {
559
560
        *(t_float *)(((char *)(x->sc_vec)) + xonset) +=
            dx * (glist_pixelstox(glist, 1) - glist_pixelstox(glist, 0));
561
562
563
        x->sc_x1 += dx;
        x->sc_x2 += dx;
    }
564
    if (goty)
565
    {
566
567
        *(t_float *)(((char *)(x->sc_vec)) + yonset) +=
            dy * (glist_pixelstoy(glist, 1) - glist_pixelstoy(glist, 0));
568
569
570
        x->sc_y1 += dy;
        x->sc_y2 += dy;
    }
571
    scalar_getbasexy(x, &basex, &basey);
572
573
574
575
576
577
    gpointer_init(&gp);
    gpointer_setglist(&gp, glist, x);
    SETPOINTER(&at[0], &gp);
    SETFLOAT(&at[1], (t_float)dx);
    SETFLOAT(&at[2], (t_float)dy);
    template_notify(template, gensym("displace"), 2, at);
578

579
580
    sys_vgui("pdtk_canvas_getscroll .x%lx.c\n", glist);
     
581
582
    /* Apparently this is no longer needed, so it is commented out.  But if
       we merge garrays back into this code we may need it... */
583
    /*
584
585
586
587
588
589
590
591
592
593
594
595
    if (template->t_sym != gensym("_float_array"))
    {
        t_gobj *y;
        t_canvas *templatecanvas = template_findcanvas(template);
        for (y = templatecanvas->gl_list; y; y = y->g_next)
            {
                t_parentwidgetbehavior *wb = pd_getparentwidget(&y->g_pd);
                if (!wb) continue;
                (*wb->w_parentdisplacefn)(y, glist, x->sc_vec, template,
                    basex, basey, dx, dy);
            }
    }
596
    */
597

598
599
600
    //scalar_redraw(x, glist);
}

Miller Puckette's avatar
Miller Puckette committed
601
602
603
604
605
606
607
608
609
610
611
static void scalar_activate(t_gobj *z, t_glist *owner, int state)
{
    /* post("scalar_activate %d", state); */
    /* later */
}

static void scalar_delete(t_gobj *z, t_glist *glist)
{
    /* nothing to do */
}

612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
extern void svg_grouptogui(t_glist *g, t_template *template, t_word *data);

static void scalar_groupvis(t_scalar *x, t_glist *owner, t_template *template,
    t_glist *gl, t_glist *parent, int vis)
{
    t_gobj *y;
    if (vis)
    {
        sys_vgui(".x%lx.c create group -tags {.dgroup%lx.%lx} "
                 "-parent {.dgroup%lx.%lx}\\\n",
            glist_getcanvas(owner), gl, x->sc_vec,
            parent, x->sc_vec);
        svg_grouptogui(gl, template, x->sc_vec);
        sys_gui("\n");

    }
    for (y = gl->gl_list; y; y = y->g_next)
    {
        if (pd_class(&y->g_pd) == canvas_class &&
631
            ((t_glist *)y)->gl_svg)
632
        {
633
            scalar_groupvis(x, owner, template, (t_glist *)y, gl, vis);
634
635
636
637
638
639
640
641
        }
        t_parentwidgetbehavior *wb = pd_getparentwidget(&y->g_pd);
        if (!wb) continue;
        (*wb->w_parentvisfn)(y, owner, gl, x, x->sc_vec, template,
            0, 0, vis);
    }
}

642
643
/* At present, scalars have a three-level hierarchy in tkpath,
   with two levels accessible by the user from within Pd:
644
645
   scalar - ".scalar%lx", x->sc_vec
     |      tkpath group with matrix derived from x/y fields,
646
647
648
649
     |      gop basexy, and gop scaling values. This group is
     |      not configurable by the user. This means that the
     |      [draw group] below can ignore basexy and gop junk
     |      when computing the transform matrix.
650
     v
651
652
653
654
655
   group  - ".dgroup%lx.%lx", templatecanvas, x->sc_vec
     |      group used as parent for all the toplevel drawing
     |      commands of the scalar (i.e., the ones located on
     |      the same canvas as the [struct]).  Its matrix and
     |      options aren't yet accessible by the user.
656
     v
657
658
   (draw  - ".draw%lx.%lx", (t_draw *ptr), x->sc_vec
     |      the actual drawing command: rectangle, path, etc.
659
660
661
662
663
664
665
     or     Each has its own matrix and options which can set
   scelem   with messages to the corresponding [draw] object.
     or   - ds arrays can nest arbitrarily deep. Scelem is for
   group)   data structure arrays.  group is for more groups.
     |
     v
    etc.
666
667
668
669

   The tag "blankscalar" is for scalars that don't have a visual
   representation, but maybe this can just be merged with "scalar"
*/
Miller Puckette's avatar
Miller Puckette committed
670
671
static void scalar_vis(t_gobj *z, t_glist *owner, int vis)
{
672
    //fprintf(stderr,"scalar_vis %d %lx\n", vis, (t_int)z);
Miller Puckette's avatar
Miller Puckette committed
673
    t_scalar *x = (t_scalar *)z;
674
675
676

    x->sc_bboxcache = 0;

Miller Puckette's avatar
Miller Puckette committed
677
678
679
    t_template *template = template_findbyname(x->sc_template);
    t_canvas *templatecanvas = template_findcanvas(template);
    t_gobj *y;
680
    t_float basex, basey;
Miller Puckette's avatar
Miller Puckette committed
681
682
683
684
685
686
687
688
    scalar_getbasexy(x, &basex, &basey);
        /* if we don't know how to draw it, make a small rectangle */
    if (!templatecanvas)
    {
        if (vis)
        {
            int x1 = glist_xtopixels(owner, basex);
            int y1 = glist_ytopixels(owner, basey);
689
            sys_vgui(".x%lx.c create prect %d %d %d %d "
690
691
692
693
                     "-tags {blankscalar%lx %s}\n",
                glist_getcanvas(owner), x1-1, y1-1, x1+1, y1+1, x,
                (glist_isselected(owner, &x->sc_gobj) ?
                    "scalar_selected" : ""));
Miller Puckette's avatar
Miller Puckette committed
694
        }
695
696
        else sys_vgui(".x%lx.c delete blankscalar%lx\n",
            glist_getcanvas(owner), x);
Miller Puckette's avatar
Miller Puckette committed
697
698
        return;
    }
699
700
    //else sys_vgui(".x%lx.c delete blankscalar%lx\n",
    //    glist_getcanvas(owner), x);
701
702
703
704
705
706
707

    if (vis)
    {
        t_float xscale = glist_xtopixels(owner, 1) - glist_xtopixels(owner, 0);
        t_float yscale = glist_ytopixels(owner, 1) - glist_ytopixels(owner, 0);
        /* we could use the tag .template%lx for easy access from
           the draw_class, but that's not necessary at this point */
708
        sys_vgui(".x%lx.c create group -tags {.scalar%lx %s} "
709
710
            "-matrix { {%g %g} {%g %g} {%d %d} }\n",
            glist_getcanvas(owner), x->sc_vec,
711
            (glist_isselected(owner, &x->sc_gobj) ? "scalar_selected" : ""),
712
713
            xscale, 0.0, 0.0, yscale, (int)glist_xtopixels(owner, basex),
            (int)glist_ytopixels(owner, basey)
714
            );
715
        sys_vgui(".x%lx.c create group -tags {.dgroup%lx.%lx} "
716
                 "-parent {.scalar%lx}\n",
717
            glist_getcanvas(owner), templatecanvas, x->sc_vec, x->sc_vec);
718
719
        sys_vgui("pdtk_bind_scalar_mouseover "
                 ".x%lx.c .x%lx.x%lx.template%lx {.x%lx}\n",
720
721
            glist_getcanvas(owner), glist_getcanvas(owner),
            owner, x->sc_vec, x);
722
    }
Miller Puckette's avatar
Miller Puckette committed
723

724
    /* warning: don't need--- have recursive func. */
Miller Puckette's avatar
Miller Puckette committed
725
726
727
    for (y = templatecanvas->gl_list; y; y = y->g_next)
    {
        t_parentwidgetbehavior *wb = pd_getparentwidget(&y->g_pd);
728
729
        if (!wb)
        {
730
            /* check subpatches for more drawing commands.  This
731
732
               can be optimized to only search [group] subpatches */
            if (pd_class(&y->g_pd) == canvas_class &&
733
734
                ((t_glist *)y)->gl_svg)
            {
735
736
                scalar_groupvis(x, owner, template,
                    (t_glist *)y, templatecanvas, vis);
737
            }
738
739
740
            continue;
        }
        (*wb->w_parentvisfn)(y, owner, 0, x, x->sc_vec, template,
741
            basex, basey, vis);
Miller Puckette's avatar
Miller Puckette committed
742
    }
743
    if (!vis)
744
745
        sys_vgui(".x%lx.c delete .scalar%lx\n", glist_getcanvas(owner),
            x->sc_vec);
746

747
    sys_unqueuegui(x);
Miller Puckette's avatar
Miller Puckette committed
748
749
    if (glist_isselected(owner, &x->sc_gobj))
    {
750
751
        // we removed this because it caused infinite recursion
        // in the scalar-help.pd example
752
        //scalar_select(z, owner, 1);
Miller Puckette's avatar
Miller Puckette committed
753
754
755
756
757
758
759
760
761
        scalar_drawselectrect(x, owner, 0);
        scalar_drawselectrect(x, owner, 1);
    }
}

static void scalar_doredraw(t_gobj *client, t_glist *glist)
{
    scalar_vis(client, glist, 0);
    scalar_vis(client, glist, 1);
762
763
764
765
766
767
    if (glist_isselected(glist_getcanvas(glist), (t_gobj *)glist))
    {
        //fprintf(stderr,"yes\n");
        sys_vgui("pdtk_select_all_gop_widgets .x%lx %lx %d\n",
            glist_getcanvas(glist), glist, 1);
    }
768
    sys_vgui("pdtk_canvas_getscroll .x%lx.c\n", glist_getcanvas(glist));
Miller Puckette's avatar
Miller Puckette committed
769
770
771
772
773
}

void scalar_redraw(t_scalar *x, t_glist *glist)
{
    if (glist_isvisible(glist))
774
        scalar_doredraw((t_gobj *)x, glist);
775
        //sys_queuegui(x, glist, scalar_doredraw);
Miller Puckette's avatar
Miller Puckette committed
776
777
}

778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
int scalar_groupclick(struct _glist *groupcanvas,
    t_word *data, t_template *template, t_scalar *sc,
    t_array *ap, struct _glist *owner,
    t_float xloc, t_float yloc, int xpix, int ypix,
    int shift, int alt, int dbl, int doit, t_float basex, t_float basey)
{
    int hit = 0;
    t_gobj *y;
    for (y = groupcanvas->gl_list; y; y = y->g_next)
    {
        if (pd_class(&y->g_pd) == canvas_class &&
            ((t_glist *)y)->gl_svg)
        {
            if (hit = scalar_groupclick((t_glist *)y, data, template, sc, ap,
                owner, xloc, yloc, xpix, ypix,
                shift, alt, dbl, doit, basex, basey))
            {
                return (hit);
            }
        }
        t_parentwidgetbehavior *wb = pd_getparentwidget(&y->g_pd);
        if (!wb) continue;
        if (hit = (*wb->w_parentclickfn)(y, owner,
            data, template, sc, ap, basex + xloc, basey + yloc,
            xpix, ypix, shift, alt, dbl, doit))
        {
            return (hit);
        }
    }
    return 0;
}

Miller Puckette's avatar
Miller Puckette committed
810
811
int scalar_doclick(t_word *data, t_template *template, t_scalar *sc,
    t_array *ap, struct _glist *owner,
812
    t_float xloc, t_float yloc, int xpix, int ypix,
Miller Puckette's avatar
Miller Puckette committed
813
814
815
816
    int shift, int alt, int dbl, int doit)
{
    int hit = 0;
    t_canvas *templatecanvas = template_findcanvas(template);
817
    t_atom at[2];
818
819
    t_float basex = template_getfloat(template, gensym("x"), data, 0);
    t_float basey = template_getfloat(template, gensym("y"), data, 0);
820
821
    //fprintf(stderr,"=================scalar_doclick %f %f %f %f %d\n",
    //    basex, basey, xloc, yloc, doit);
Ivica Bukvic's avatar
Ivica Bukvic committed
822

823
824
825
826
827
    SETFLOAT(at, basex + xloc);
    SETFLOAT(at+1, basey + yloc);
    if (doit)
    {
        //fprintf(stderr,"    doit\n");
828
829
        template_notifyforscalar(template, owner, 
            sc, gensym("click"), 2, at);
830
    }
Ivica Bukvic's avatar
Ivica Bukvic committed
831

832
833
834
835
836
837
838
839
    // if we are nested ignore xloc and yloc, otherwise
    // nested objects get their hitbox miscalculated
    if (xloc != 0.0 || yloc != 0.0)
    {
        //fprintf(stderr,"ignoring\n");
        basex = 0.0;
        basey = 0.0;
    }
Ivica Bukvic's avatar
Ivica Bukvic committed
840

841
842
843
844
    hit = scalar_groupclick(templatecanvas, data, template, sc, ap,
                owner, xloc, yloc, xpix, ypix,
                shift, alt, dbl, doit, basex, basey);
    return hit;
Miller Puckette's avatar
Miller Puckette committed
845
846
}

847
848
849
/* Unfortunately, nested gops don't yet handle scalar clicks correctly. The
   nested scalar seems not to receive the click.  However, the enter/leave
   messages happen just fine since most of their logic is in tcl/tk. */
Miller Puckette's avatar
Miller Puckette committed
850
851
852
static int scalar_click(t_gobj *z, struct _glist *owner,
    int xpix, int ypix, int shift, int alt, int dbl, int doit)
{
853
    //fprintf(stderr,"scalar_click %d %d\n", xpix, ypix);
Miller Puckette's avatar
Miller Puckette committed
854
    t_scalar *x = (t_scalar *)z;
855

856
857
858
    x->sc_bboxcache = 0;

    t_template *template = template_findbyname(x->sc_template);
859

Miller Puckette's avatar
Miller Puckette committed
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
    return (scalar_doclick(x->sc_vec, template, x, 0,
        owner, 0, 0, xpix, ypix, shift, alt, dbl, doit));
}

void canvas_writescalar(t_symbol *templatesym, t_word *w, t_binbuf *b,
    int amarrayelement);

static void scalar_save(t_gobj *z, t_binbuf *b)
{
    t_scalar *x = (t_scalar *)z;
    t_binbuf *b2 = binbuf_new();
    canvas_writescalar(x->sc_template, x->sc_vec, b2, 0);
    binbuf_addv(b, "ss", &s__X, gensym("scalar"));
    binbuf_addbinbuf(b, b2);
    binbuf_addsemi(b);
    binbuf_free(b2);
}

static void scalar_properties(t_gobj *z, struct _glist *owner)
{
    t_scalar *x = (t_scalar *)z;
    char *buf, buf2[80];
    int bufsize;
    t_binbuf *b;
    glist_noselect(owner);
    glist_select(owner, z);
    b = glist_writetobinbuf(owner, 0);
    binbuf_gettext(b, &buf, &bufsize);
    binbuf_free(b);
    buf = t_resizebytes(buf, bufsize, bufsize+1);
    buf[bufsize] = 0;
    sprintf(buf2, "pdtk_data_dialog %%s {");
    gfxstub_new((t_pd *)owner, x, buf2);
    sys_gui(buf);
    sys_gui("}\n");
    t_freebytes(buf, bufsize+1);
}

static t_widgetbehavior scalar_widgetbehavior =
{
    scalar_getrect,
    scalar_displace,
    scalar_select,
    scalar_activate,
    scalar_delete,
    scalar_vis,
    scalar_click,
907
    scalar_displace_withtag,
Miller Puckette's avatar
Miller Puckette committed
908
909
910
911
912
913
914
915
916
917
918
919
};

static void scalar_free(t_scalar *x)
{
    t_symbol *templatesym = x->sc_template;
    t_template *template = template_findbyname(templatesym);
    if (!template)
    {
        error("scalar: couldn't find template %s", templatesym->s_name);
        return;
    }
    word_free(x->sc_vec, template);
920
921
922
    char buf[50];
    sprintf(buf, ".x%lx", (long unsigned int)x);
    pd_unbind(&x->sc_gobj.g_pd, gensym(buf));
Miller Puckette's avatar
Miller Puckette committed
923
924
925
926
927
928
929
930
931
932
933
934
    gfxstub_deleteforkey(x);
        /* the "size" field in the class is zero, so Pd doesn't try to free
        us automatically (see pd_free()) */
    freebytes(x, sizeof(t_scalar) + (template->t_n - 1) * sizeof(*x->sc_vec));
}

/* ----------------- setup function ------------------- */

void g_scalar_setup(void)
{
    scalar_class = class_new(gensym("scalar"), 0, (t_method)scalar_free, 0,
        CLASS_GOBJ, 0);
935
936
    class_addmethod(scalar_class, (t_method)scalar_mouseover,
        gensym("mouseover"), A_FLOAT, A_NULL);
Miller Puckette's avatar
Miller Puckette committed
937
938
939
940
    class_setwidget(scalar_class, &scalar_widgetbehavior);
    class_setsavefn(scalar_class, scalar_save);
    class_setpropertiesfn(scalar_class, scalar_properties);
}