g_scalar.c 26.4 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
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
            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);
    }
}

    /* 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);
    }
    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);
114
115
116
    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
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
    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);
}

/* -------------------- widget behavior for scalar ------------ */
151
void scalar_getbasexy(t_scalar *x, t_float *basex, t_float *basey)
Miller Puckette's avatar
Miller Puckette committed
152
153
154
155
156
157
{
    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);
}

158
159
extern int array_joc;

160
161
162
extern void template_notifyforscalar(t_template *template, t_glist *owner,
    t_scalar *sc, t_symbol *s, int argc, t_atom *argv);

163
164
t_canvas *sc_mouseover_canvas;
static void scalar_mouseover(t_scalar *x, t_floatarg state)
165
{
166
167
168
169
170
171
172
173
    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);
174
175
}

Miller Puckette's avatar
Miller Puckette committed
176
177
178
static void scalar_getrect(t_gobj *z, t_glist *owner,
    int *xp1, int *yp1, int *xp2, int *yp2)
{
179
    //fprintf(stderr,"scalar_getrect %d\n", array_joc);
Miller Puckette's avatar
Miller Puckette committed
180
    t_scalar *x = (t_scalar *)z;
181

Miller Puckette's avatar
Miller Puckette committed
182
183
184
185
    t_template *template = template_findbyname(x->sc_template);
    t_canvas *templatecanvas = template_findcanvas(template);
    int x1 = 0x7fffffff, x2 = -0x7fffffff, y1 = 0x7fffffff, y2 = -0x7fffffff;
    t_gobj *y;
186
    t_float basex, basey;
187

188
189
190
191
    // EXPERIMENTAL: we assume that entire canvas is within
    // the rectangle--this is for arrays
    // with "jump on click" enabled TODO: test for other regressions
    // (there shouuld not be any
192
    // provided the global variable array_joc is properly maintained)
193
194
    if (glist_istoplevel(owner) && array_joc)
    {
195
        x1 = -0x7fffffff, y1 = -0x7fffffff, x2 = 0x7fffffff, y2 = 0x7fffffff;
Miller Puckette's avatar
Miller Puckette committed
196
    }
197

198
199
    else
    {
200
201
202
        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
203
        {
204
            //fprintf(stderr,"...point\n");
205
206
207
208
209
            x1 = x2 = glist_xtopixels(owner, basex);
            y1 = y2 = glist_ytopixels(owner, basey);
        }
        else
        {
210
211
212
213
214
215
216
217
218
            /* 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;
            }
219
220
221
222
223
224
225
226
227
228
229
230
231
232
            x1 = y1 = 0x7fffffff;
            x2 = y2 = -0x7fffffff;
            for (y = templatecanvas->gl_list; y; y = y->g_next)
            {
                t_parentwidgetbehavior *wb = pd_getparentwidget(&y->g_pd);
                int nx1, ny1, nx2, ny2;
                if (!wb) continue;
                (*wb->w_parentgetrectfn)(y, owner,
                    x->sc_vec, 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;
233
234
                //fprintf(stderr,"====scalar_getrect x1 %d y1 %d x2 %d y2 %d\n",
                //    x1, y1, x2, y2);
235
236
237
            }
            if (x2 < x1 || y2 < y1)
                x1 = y1 = x2 = y2 = 0;
Miller Puckette's avatar
Miller Puckette committed
238
239
        }
    }
240
241
    //fprintf(stderr,"FINAL scalar_getrect x1 %d y1 %d x2 %d y2 %d\n",
    //    x1, y1, x2, y2);
242
243
244
245
246
    *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
247
248
}

249
void scalar_drawselectrect(t_scalar *x, t_glist *glist, int state)
Miller Puckette's avatar
Miller Puckette committed
250
251
252
253
254
255
256
{
    if (state)
    {
        int x1, y1, x2, y2;
       
        scalar_getrect(&x->sc_gobj, glist, &x1, &y1, &x2, &y2);
        x1--; x2++; y1--; y2++;
257
258
259
260
261
262
263
264
                /* we're not giving the rectangle the "select" tag
                   because we have to manually displace the scalar
                   in scalar_displace_withtag. The reason for that
                   is the "displace" message may trigger a redraw
                   of the bbox at the new position, and Pd-l2ork's
                   general "move selected" subcommand will end up
                   offsetting such a rect by dx dy.
                */
265
266
267
268
269
270
        if (glist_istoplevel(glist))
            sys_vgui(".x%lx.c create prect %d %d %d %d "
                     "-strokewidth 1 -stroke $pd_colors(selection) "
                     "-tags {select%lx}\n",
                    glist_getcanvas(glist), x1, y1, x2, y2,
                    x);
Miller Puckette's avatar
Miller Puckette committed
271
272
273
    }
    else
    {
274
275
        if (glist_istoplevel(glist))
            sys_vgui(".x%lx.c delete select%lx\n", glist_getcanvas(glist), x);
Miller Puckette's avatar
Miller Puckette committed
276
277
278
    }
}

279
280
281
282
283
284
285
286
287
288
289
290
291
/* This is a workaround.  Since scalars are contained within a tkpath
   group, and since tkpath groups don't have coords, we have to fudge
   things with regard to Pd-l2ork's normal *_displace_withtag functionality.
   (Additionally, we can't just fall back to the old displace method
   because it too assumes the canvas item has an xy coord.)

   We draw the selection rect but don't add the scalar to the
   "selected" tag.  This means when Pd-l2ork issues the canvas "move"
   command, our scalar doesn't go anywhere.  Instead we get the callback
   to scalar_displace_withtag and do another workaround to get the
   new position and feed it to the scalar's matrix.

   This creates a problem with gop canvases, and yet _another_ partial
292
   workaround which I apologize for inside t_scalar def in m_pd.h.
293
294
*/
void scalar_select(t_gobj *z, t_glist *owner, int state)
Miller Puckette's avatar
Miller Puckette committed
295
{
Ivica Bukvic's avatar
Ivica Bukvic committed
296
    fprintf(stderr,"scalar_select %d\n", state);
Miller Puckette's avatar
Miller Puckette committed
297
298
299
300
    t_scalar *x = (t_scalar *)z;
    t_template *tmpl;
    t_symbol *templatesym = x->sc_template;
    t_atom at;
301
    t_canvas *templatecanvas = NULL;
Miller Puckette's avatar
Miller Puckette committed
302
303
304
305
    t_gpointer gp;
    gpointer_init(&gp);
    gpointer_setglist(&gp, owner, x);
    SETPOINTER(&at, &gp);
306
307
    if (tmpl = template_findbyname(templatesym))
    {
Ivica Bukvic's avatar
Ivica Bukvic committed
308
        fprintf(stderr,"blah\n");
Miller Puckette's avatar
Miller Puckette committed
309
310
        template_notify(tmpl, (state ? gensym("select") : gensym("deselect")),
            1, &at);
311
312
        templatecanvas = template_findcanvas(tmpl);
    }
Miller Puckette's avatar
Miller Puckette committed
313
    gpointer_unset(&gp);
314
315
    if (state)
    {
316
                x->sc_selected = owner;
317
318
319
320
321
        sys_vgui(".x%lx.c addtag selected withtag blankscalar%lx\n",
            glist_getcanvas(owner), x);
        /* how do we navigate through a t_word list?
        if (x->sc_vec)
        {
322
            t_word *v = x->sc_vec;
323
324
325
326
327
            while(v)
            {
                sys_vgui(".x%lx.c "
                         "addtag selected withtag .x%lx.x%lx.template%lx\n",
                    glist_getcanvas(owner), glist_getcanvas(owner), owner, v);
328
329
            }
        }*/
330
331
332
333
334
335
336
337
338
339
340
341
342
        /*if (templatecanvas) {
            // get the universal tag for all nested objects
            t_canvas *tag = owner;
            while (tag->gl_owner)
            {
                tag = tag->gl_owner;
            }
            sys_vgui(".x%lx.c addtag selected withtag %lx\n",
                glist_getcanvas(owner), (t_int)tag);
        }*/
    }
    else
    {
343
        x->sc_selected = 0;
344
345
        sys_vgui(".x%lx.c dtag blankscalar%lx selected\n",
            glist_getcanvas(owner), x);
Ivica Bukvic's avatar
Ivica Bukvic committed
346
347
348
        sys_vgui(".x%lx.c dtag .x%lx.x%lx.template%lx selected\n",
            glist_getcanvas(owner), glist_getcanvas(owner),
            owner, x->sc_vec);
349
        /* how do we navigate through a t_word list?
350
351
        if (x->sc_vec)
        {
352
            t_word *v = x->sc_vec;
353
354
355
356
357
358
359
360
361
362
363
364
365
            while (v)
            {
                sys_vgui(".x%lx.c dtag .x%lx.x%lx.template%lx selected\n",
                    glist_getcanvas(owner), glist_getcanvas(owner),
                    owner, x->sc_vec);
            }
        }*/
        /*if (templatecanvas) {
            // get the universal tag for all nested objects
            t_canvas *tag = owner;
            while (tag->gl_owner)
            {
                tag = tag->gl_owner;
366
            }
367
368
            sys_vgui(".x%lx.c dtag %lx selected\n",
                glist_getcanvas(owner), (t_int)tag);
369
        }*/
370
371
372
    }
    //sys_vgui("pdtk_select_all_gop_widgets .x%lx %lx %d\n",
    //    glist_getcanvas(owner), owner, state);
Miller Puckette's avatar
Miller Puckette committed
373
374
375
376
377
    scalar_drawselectrect(x, owner, state);
}

static void scalar_displace(t_gobj *z, t_glist *glist, int dx, int dy)
{
378
    //fprintf(stderr,"scalar_displace\n");
Miller Puckette's avatar
Miller Puckette committed
379
380
381
382
383
384
385
    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;
386
    t_float basex = 0, basey = 0;
Miller Puckette's avatar
Miller Puckette committed
387
388
389
390
391
392
    if (!template)
    {
        error("scalar: couldn't find template %s", templatesym->s_name);
        return;
    }
    gotx = template_find_field(template, gensym("x"), &xonset, &xtype, &zz);
393
    if ((gotx && (xtype != DT_FLOAT)) || x->sc_selected != glist)
Miller Puckette's avatar
Miller Puckette committed
394
395
        gotx = 0;
    goty = template_find_field(template, gensym("y"), &yonset, &ytype, &zz);
396
    if ((goty && (ytype != DT_FLOAT)) || x->sc_selected != glist)
Miller Puckette's avatar
Miller Puckette committed
397
398
        goty = 0;
    if (gotx)
399
    {
Miller Puckette's avatar
Miller Puckette committed
400
401
        *(t_float *)(((char *)(x->sc_vec)) + xonset) +=
            dx * (glist_pixelstox(glist, 1) - glist_pixelstox(glist, 0));
402
403
404
        x->sc_x1 += dx;
        x->sc_x2 += dx;
    }
Miller Puckette's avatar
Miller Puckette committed
405
    if (goty)
406
    {
Miller Puckette's avatar
Miller Puckette committed
407
408
        *(t_float *)(((char *)(x->sc_vec)) + yonset) +=
            dy * (glist_pixelstoy(glist, 1) - glist_pixelstoy(glist, 0));
409
410
411
        x->sc_y1 += dy;
        x->sc_y2 += dy;
    }
Miller Puckette's avatar
Miller Puckette committed
412
413
414
    gpointer_init(&gp);
    gpointer_setglist(&gp, glist, x);
    SETPOINTER(&at[0], &gp);
415
416
    SETFLOAT(&at[1], (t_float)dx);
    SETFLOAT(&at[2], (t_float)dy);
Miller Puckette's avatar
Miller Puckette committed
417
418
419
420
    template_notify(template, gensym("displace"), 2, at);
    scalar_redraw(x, glist);
}

421
422
423
424
425
426
427
/* Very complicated at the moment. If a scalar is in a gop canvas, then
   we don't need to update its x/y fields (if it even has them) when displacing
   it.  Otherwise we do.  The global selected_owner variable is used to store
   the "owner" canvas-- if it matches the glist parameter below then we know
   the scalar is directly selected.  If not it's in a gop canvas.  (This doesn't
   yet handle nested GOPs, unfortunately.)
*/
428
429
static void scalar_displace_withtag(t_gobj *z, t_glist *glist, int dx, int dy)
{
430
    //fprintf(stderr,"scalar_displace_withtag %lx %d %d\n", (t_int)z, dx, dy);
431
432
433
434
435
436
437
    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;
438
    int bx1, bx2, by1, by2;
439
    t_float basex = 0, basey = 0;
440
441
442
443
444
445
    if (!template)
    {
        error("scalar: couldn't find template %s", templatesym->s_name);
        return;
    }
    gotx = template_find_field(template, gensym("x"), &xonset, &xtype, &zz);
446
    if ((gotx && (xtype != DT_FLOAT)) || x->sc_selected != glist)
447
448
        gotx = 0;
    goty = template_find_field(template, gensym("y"), &yonset, &ytype, &zz);
449
    if ((goty && (ytype != DT_FLOAT)) || x->sc_selected != glist)
450
451
        goty = 0;
    if (gotx)
452
    {
453
454
        *(t_float *)(((char *)(x->sc_vec)) + xonset) +=
            dx * (glist_pixelstox(glist, 1) - glist_pixelstox(glist, 0));
455
456
457
        x->sc_x1 += dx;
        x->sc_x2 += dx;
    }
458
    if (goty)
459
    {
460
461
        *(t_float *)(((char *)(x->sc_vec)) + yonset) +=
            dy * (glist_pixelstoy(glist, 1) - glist_pixelstoy(glist, 0));
462
463
464
        x->sc_y1 += dy;
        x->sc_y2 += dy;
    }
465
    scalar_getbasexy(x, &basex, &basey);
466
467
468
469
470
471
    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);
472

473
474
475
476
477
478
479
480
481
482
    /* this is a hack to make sure the bbox gets drawn in
       the right location.  If the scalar is selected
       then it's possible that a "displace" message
       from the [struct] will trigger a redraw of the
       bbox. So we don't update the cached bbox until
       after that redraw, so we can move the bbox below.
    */
    sys_vgui(".x%lx.c coords {select%lx} %d %d %d %d\n", glist, x,
        x->sc_x1 - 1, x->sc_y1 - 1, x->sc_x2 + 1, x->sc_y2 + 1);

483
484
485
486
    t_float xscale = glist_xtopixels(x->sc_selected, 1) -
        glist_xtopixels(x->sc_selected, 0);
    t_float yscale = glist_ytopixels(x->sc_selected, 1) -
        glist_ytopixels(x->sc_selected, 0);
487

488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
    sys_vgui(".x%lx.c itemconfigure {.scalar%lx} "
             "-matrix { {%g %g} {%g %g} {%d %d} }\n",
        glist_getcanvas(glist), x->sc_vec, xscale, 0.0, 0.0, yscale,
        (int)glist_xtopixels(x->sc_selected, basex) +
            (x->sc_selected == glist ? 0 : dx),
        (int)glist_ytopixels(x->sc_selected, basey) +
            (x->sc_selected == glist ? 0 : dy));

    /* This awful hack is here because plot_vis is used by both ds arrays
       and garrays.  Unlike the other drawing commands, plot_vis still does
       all the gop scaling and basex/basey calculations manually.  So
       currently the trace does not use the scalar group as its "-parent".

       Once all the calculations inside plot_vis, array_doclick, and
       array_motion remove the glist_[xy]topixels and basex/y stuff, plot_vis
       can use the scalar "-parent" and this awful hack can be removed.

       Garrays follow their Pd-l2ork's standard select and displace_withtag
       behavior, so we don't use the hack for them.  (Non-garray scalars
       should follow that behavior too, but cannot atm for the reason given
       in the comment above scalar_select...)
    */

    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);
            }
    }
523

524
525
526
    //scalar_redraw(x, glist);
}

Miller Puckette's avatar
Miller Puckette committed
527
528
529
530
531
532
533
534
535
536
537
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 */
}

538
539
540
541
542
543
544
/* At present, scalars have a three-level hierarchy in tkpath,
   with two levels accessible by the user from within Pd:
   scalar - tkpath group with matrix derived from x/y fields,
     |      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.
545
     v
546
547
548
549
   dgroup - user-facing group which is the parent for all the
     |      scalar's drawing commands. Its matrix and options
     |      can be accessed from the [draw group] object (one
     |      per templatecanvas).
550
     v
551
552
553
   draw   - the actual drawing command: rectangle, path, etc.
            Each has its own matrix and options which can set
            with messages to the corresponding [draw] object.
554
555
556
557

   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
558
559
static void scalar_vis(t_gobj *z, t_glist *owner, int vis)
{
560
    //fprintf(stderr,"scalar_vis %d\n", vis);
Miller Puckette's avatar
Miller Puckette committed
561
    t_scalar *x = (t_scalar *)z;
562
563
564

    x->sc_bboxcache = 0;

Miller Puckette's avatar
Miller Puckette committed
565
566
567
    t_template *template = template_findbyname(x->sc_template);
    t_canvas *templatecanvas = template_findcanvas(template);
    t_gobj *y;
568
    t_float basex, basey;
Miller Puckette's avatar
Miller Puckette committed
569
570
571
572
573
574
575
576
    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);
577
578
            sys_vgui(".x%lx.c create prect %d %d %d %d "
                     "-tags {blankscalar%lx}\n",
579
                glist_getcanvas(owner), x1-1, y1-1, x1+1, y1+1, x);
Miller Puckette's avatar
Miller Puckette committed
580
        }
581
582
        else sys_vgui(".x%lx.c delete blankscalar%lx\n",
            glist_getcanvas(owner), x);
Miller Puckette's avatar
Miller Puckette committed
583
584
        return;
    }
585
586
    //else sys_vgui(".x%lx.c delete blankscalar%lx\n",
    //    glist_getcanvas(owner), x);
587
588
589
590
591
592
593
594
595
596

    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 */
        sys_vgui(".x%lx.c create group -tags {.scalar%lx} "
            "-matrix { {%g %g} {%g %g} {%d %d} }\n",
            glist_getcanvas(owner), x->sc_vec,
597
598
            xscale, 0.0, 0.0, yscale, (int)glist_xtopixels(owner, basex),
            (int)glist_ytopixels(owner, basey)
599
            );
600
601
        sys_vgui(".x%lx.c create group -tags {.dgroup%lx} "
                 "-parent {.scalar%lx}\n",
602
            glist_getcanvas(owner), x->sc_vec, x->sc_vec);
603
604
        sys_vgui("pdtk_bind_scalar_mouseover "
                 ".x%lx.c .x%lx.x%lx.template%lx {.x%lx}\n",
605
606
            glist_getcanvas(owner), glist_getcanvas(owner),
            owner, x->sc_vec, x);
607
    }
Miller Puckette's avatar
Miller Puckette committed
608
609
610
611
612

    for (y = templatecanvas->gl_list; y; y = y->g_next)
    {
        t_parentwidgetbehavior *wb = pd_getparentwidget(&y->g_pd);
        if (!wb) continue;
613
614
        (*wb->w_parentvisfn)(y, owner, x, x->sc_vec, template,
            basex, basey, vis);
Miller Puckette's avatar
Miller Puckette committed
615
    }
616
    if (!vis)
617
618
        sys_vgui(".x%lx.c delete .scalar%lx\n", glist_getcanvas(owner),
            x->sc_vec);
619

620
    sys_unqueuegui(x);
Miller Puckette's avatar
Miller Puckette committed
621
622
    if (glist_isselected(owner, &x->sc_gobj))
    {
623
        scalar_select(z, owner, 1);
Miller Puckette's avatar
Miller Puckette committed
624
625
626
627
628
629
630
631
632
        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);
633
634
635
636
637
638
    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);
    }
639
    sys_vgui("pdtk_canvas_getscroll .x%lx.c\n", glist_getcanvas(glist));
Miller Puckette's avatar
Miller Puckette committed
640
641
642
643
644
}

void scalar_redraw(t_scalar *x, t_glist *glist)
{
    if (glist_isvisible(glist))
645
        scalar_doredraw((t_gobj *)x, glist);
646
        //sys_queuegui(x, glist, scalar_doredraw);
Miller Puckette's avatar
Miller Puckette committed
647
648
649
650
}

int scalar_doclick(t_word *data, t_template *template, t_scalar *sc,
    t_array *ap, struct _glist *owner,
651
    t_float xloc, t_float yloc, int xpix, int ypix,
Miller Puckette's avatar
Miller Puckette committed
652
653
654
655
656
    int shift, int alt, int dbl, int doit)
{
    int hit = 0;
    t_canvas *templatecanvas = template_findcanvas(template);
    t_gobj *y;
657
    t_atom at[2];
658
659
    t_float basex = template_getfloat(template, gensym("x"), data, 0);
    t_float basey = template_getfloat(template, gensym("y"), data, 0);
660
661
    //fprintf(stderr,"=================scalar_doclick %f %f %f %f %d\n",
    //    basex, basey, xloc, yloc, doit);
Ivica Bukvic's avatar
Ivica Bukvic committed
662

663
664
665
666
667
    SETFLOAT(at, basex + xloc);
    SETFLOAT(at+1, basey + yloc);
    if (doit)
    {
        //fprintf(stderr,"    doit\n");
668
669
        template_notifyforscalar(template, owner, 
            sc, gensym("click"), 2, at);
670
    }
Ivica Bukvic's avatar
Ivica Bukvic committed
671

672
673
674
675
676
677
678
679
    // 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
680

Miller Puckette's avatar
Miller Puckette committed
681
682
    for (y = templatecanvas->gl_list; y; y = y->g_next)
    {
683
684
        //fprintf(stderr,"looking for template... %f %f %f %f %lx %lx\n",
        //    basex, basey, xloc, yloc, (t_int)owner, (t_int)data);
Miller Puckette's avatar
Miller Puckette committed
685
686
        t_parentwidgetbehavior *wb = pd_getparentwidget(&y->g_pd);
        if (!wb) continue;
687
688
689
690
691
692
693
694
        if (hit = (*wb->w_parentclickfn)(y, owner,
            data, template, sc, ap, basex + xloc, basey + yloc,
            xpix, ypix, shift, alt, dbl, doit))
        {
                //fprintf(stderr,"    ...got it %f %f\n",
                //    basex + xloc, basey + yloc);
                return (hit);
        }
Miller Puckette's avatar
Miller Puckette committed
695
696
697
698
699
700
701
    }
    return (0);
}

static int scalar_click(t_gobj *z, struct _glist *owner,
    int xpix, int ypix, int shift, int alt, int dbl, int doit)
{
702
    //fprintf(stderr,"scalar_click %d %d\n", xpix, ypix);
Miller Puckette's avatar
Miller Puckette committed
703
    t_scalar *x = (t_scalar *)z;
704

705
706
707
    x->sc_bboxcache = 0;

    t_template *template = template_findbyname(x->sc_template);
708

Miller Puckette's avatar
Miller Puckette committed
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
    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();
    t_atom a, *argv;
    int i, argc;
    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,
758
    scalar_displace_withtag,
Miller Puckette's avatar
Miller Puckette committed
759
760
761
762
763
764
765
766
767
768
769
770
771
772
};

static void scalar_free(t_scalar *x)
{
    int i;
    t_dataslot *datatypes, *dt;
    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);
773
774
775
    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
776
777
778
779
780
781
782
783
784
785
786
787
    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);
788
789
    class_addmethod(scalar_class, (t_method)scalar_mouseover,
        gensym("mouseover"), A_FLOAT, A_NULL);
Miller Puckette's avatar
Miller Puckette committed
790
791
792
793
    class_setwidget(scalar_class, &scalar_widgetbehavior);
    class_setsavefn(scalar_class, scalar_save);
    class_setpropertiesfn(scalar_class, scalar_properties);
}