g_canvas.c 76.8 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
677
    canvas_args_to_string(namebuf, x);
/*
Miller Puckette's avatar
Miller Puckette committed
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
    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;
Jonathan Wilkes's avatar
Jonathan Wilkes committed
695
*/
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
696
697
698
699
700
#ifdef __APPLE__
    sys_vgui("wm attributes .x%lx -modified %d -titlepath {%s/%s}\n",
        x, x->gl_dirty, canvas_getdir(x)->s_name, x->gl_name->s_name);
    sys_vgui("wm title .x%lx {%s%s}\n", x, x->gl_name->s_name, namebuf);
#else
701
702
703
704
705
706
    //if(glist_havewindow(x) || !x->gl_isgraph || x->gl_isgraph && x->gl_havewindow || x->gl_loading || x->gl_dirty) {

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

Jonathan Wilkes's avatar
Jonathan Wilkes committed
707
708
709
    //sys_vgui("wm title .x%lx {%s%c%s - %s}\n", 
    //    x, x->gl_name->s_name, (x->gl_dirty? '*' : ' '), namebuf,
    //        canvas_getdir(x)->s_name);
710
711
    gui_vmess("gui_canvas_set_title", "xsssi",
        x, x->gl_name->s_name,
Jonathan Wilkes's avatar
Jonathan Wilkes committed
712
        namebuf, canvas_getdir(x)->s_name, x->gl_dirty);
713
//}
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
714
#endif
Miller Puckette's avatar
Miller Puckette committed
715
716
}

Miller Puckette's avatar
Miller Puckette committed
717
718
    /* mark a glist dirty or clean */
void canvas_dirty(t_canvas *x, t_floatarg n)
Miller Puckette's avatar
Miller Puckette committed
719
720
{
    t_canvas *x2 = canvas_getrootfor(x);
721
722
    if (glist_amreloadingabstractions)
        return;
Miller Puckette's avatar
Miller Puckette committed
723
724
725
    if ((unsigned)n != x2->gl_dirty)
    {
        x2->gl_dirty = n;
726
        if (x2->gl_havewindow) // was glist_isvisible(x2)
Miller Puckette's avatar
test7    
Miller Puckette committed
727
            canvas_reflecttitle(x2);
Miller Puckette's avatar
Miller Puckette committed
728
729
730
    }
}

731
void draw_notify(t_canvas *x, t_symbol *s, int argc, t_atom *argv);
732

733
void canvas_scalar_event(t_canvas *x, t_symbol *s, int argc, t_atom *argv)
734
{
735
736
737
738
739
    /* 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);
740
741
}

742
743
extern void canvas_check_nlet_highlights(t_canvas *x);

744
745
746
/*********** dpsaha@vt.edu resize move hooks ****************/
void canvas_draw_gop_resize_hooks(t_canvas* x)
{
747
748
    t_scalehandle *sh = (t_scalehandle *)(x->x_handle);
    t_scalehandle *mh = (t_scalehandle *)(x->x_mhandle);
749
    //fprintf(stderr,"draw_gop_resize_hooks START\n");
750
751
752
753
754
755
    //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
756
        //fprintf(stderr,"draw_gop_resize_hooks DRAW %lx %lx\n", (t_int)x, (t_int)glist_getcanvas(x));
757
758
        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);
759

760
761
762
763
764
765
766
767
768
769
//        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"*/);

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

770
        scalehandle_draw_select(mh,
771
            SCALEHANDLE_WIDTH - 4, SCALEHANDLE_HEIGHT - 11);
772
773
774
    }
    else
    {
775
        //fprintf(stderr,"draw_gop_resize_hooks ERASE\n");
776
777
        scalehandle_draw_erase(sh);
        scalehandle_draw_erase(mh);
778
779
    }
    canvas_check_nlet_highlights(x);
780
781
782
}
/*****************************************************************************/

Miller Puckette's avatar
Miller Puckette committed
783
784
void canvas_drawredrect(t_canvas *x, int doit)
{
785
786
    if (doit)
    {
787
        int x1=x->gl_xmargin, y1=x->gl_ymargin + sys_legacy;
788
        int x2=x1+x->gl_pixwidth, y2=y1+x->gl_pixheight;
Jonathan Wilkes's avatar
Jonathan Wilkes committed
789
790
791
        //sys_vgui(".x%lx.c create line "
        //    "%d %d %d %d %d %d %d %d %d %d -fill #ff8080 -tags GOP\n",
        //    glist_getcanvas(x), x1, y1, x2, y1, x2, y2, x1, y2, x1, y1);
792
793
        gui_vmess("gui_canvas_drawredrect", "xiiii",
            glist_getcanvas(x),
Jonathan Wilkes's avatar
Jonathan Wilkes committed
794
            x1, y1, x2, y2);
795
796
797
798
        //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
799
800
801
    else
    {
        //sys_vgui(".x%lx.c delete GOP\n",  glist_getcanvas(x));
802
803
        gui_vmess("gui_canvas_deleteredrect", "x",
            glist_getcanvas(x));
Jonathan Wilkes's avatar
Jonathan Wilkes committed
804
    }
Miller Puckette's avatar
Miller Puckette committed
805
806
807
808
809
810
811
}

    /* 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)
{
812
    //fprintf(stderr,"canvas_map %lx %f\n", (t_int)x, f);
Miller Puckette's avatar
Miller Puckette committed
813
814
815
816
    int flag = (f != 0);
    t_gobj *y;
    if (flag)
    {
Ivica Ico Bukvic's avatar
Ivica Ico Bukvic committed
817
818
819
820
821
822
823
        t_selection *sel;
        if (!x->gl_havewindow)
        {
            bug("canvas_map");
            canvas_vis(x, 1);
        }

824
825
826
827
        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
828
829
        else for (y = x->gl_list; y; y = y->g_next) {
            gobj_vis(y, x, 1);
830
831
832
833
        }
        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
834
835
836
837
        x->gl_mapped = 1;
        canvas_drawlines(x);
        if (x->gl_isgraph && x->gl_goprect)
            canvas_drawredrect(x, 1);
838
        scrollbar_update(x);
839
        //}
Miller Puckette's avatar
Miller Puckette committed
840
841
842
    }
    else
    {
843
        //fprintf(stderr,"canvas_map 0\n");
Miller Puckette's avatar
Miller Puckette committed
844
845
        if (glist_isvisible(x))
        {
846
            /* just clear out the whole canvas */
847
848
849
            //sys_vgui(".x%lx.c dtag all selected\n", x);
            //sys_vgui("foreach item [.x%lx.c find withtag {(!root)}] "
            //         "{ .x%lx.c delete $item }\n", x, x);
850
851
            gui_vmess("gui_canvas_erase_all_gobjs", "x",
                x);
Miller Puckette's avatar
Miller Puckette committed
852
853
854
855
856
857
858
            x->gl_mapped = 0;
        }
    }
}

void canvas_redraw(t_canvas *x)
{
859
860
    if (do_not_redraw) return;
    //fprintf(stderr,"canvas_redraw %lx\n", (t_int)x);
Miller Puckette's avatar
Miller Puckette committed
861
862
    if (glist_isvisible(x))
    {
863
        //fprintf(stderr,"canvas_redraw glist_isvisible=true\n");
Miller Puckette's avatar
Miller Puckette committed
864
865
        canvas_map(x, 0);
        canvas_map(x, 1);
866
867
868
869
870
871

        /* 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
872
873
874
875
876
877
878
    }
}

    /* we call this on a non-toplevel glist to "open" it into its
    own window. */
void glist_menu_open(t_glist *x)
{
879
    if (glist_isvisible(x))
Miller Puckette's avatar
Miller Puckette committed
880
    {
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
        if (!glist_istoplevel(x))
        {
            t_glist *gl2 = x->gl_owner;
            if (!gl2) 
                bug("glist_menu_open"); /* shouldn't happen but not dangerous */
            else
            {
                /* erase ourself in parent window */
                gobj_vis(&x->gl_gobj, gl2, 0);
                /* get rid of our editor (and subeditors) */
                if (x->gl_editor)
                    canvas_destroy_editor(x);
                x->gl_havewindow = 1;
                /* redraw ourself in parent window (blanked out this time) */
                gobj_vis(&x->gl_gobj, gl2, 1);
            }
        }
        else
        {
900
            /* Not sure if this is still needed */
901
902
903
904
905
            sys_vgui("focus .x%lx\n", (t_int)x);
        }
    }
    else
    {
906
        if (x->gl_editor)
907
908
        canvas_destroy_editor(x);
    }
Miller Puckette's avatar
Miller Puckette committed
909
910
911
912
913
    canvas_vis(x, 1);
}

int glist_isvisible(t_glist *x)
{
914
    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
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
}

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);
}

933
934
extern void canvas_group_free(t_pd *x);

Miller Puckette's avatar
Miller Puckette committed
935
936
void canvas_free(t_canvas *x)
{
937
    //fprintf(stderr,"canvas_free %lx\n", (t_int)x);
Miller Puckette's avatar
Miller Puckette committed
938
939
    t_gobj *y;
    int dspstate = canvas_suspend_dsp();
Ivica Ico Bukvic's avatar
Ivica Ico Bukvic committed
940

941
    //canvas_noundo(x);
942
    canvas_undo_free(x);
943

Miller Puckette's avatar
Miller Puckette committed
944
945
946
947
948
    if (canvas_editing == x)
        canvas_editing = 0;
    if (canvas_whichfind == x)
        canvas_whichfind = 0;
    glist_noselect(x);
949
    x->gl_unloading = 1;
Miller Puckette's avatar
Miller Puckette committed
950
951
    while (y = x->gl_list)
        glist_delete(x, y);
Miller Puckette's avatar
Miller Puckette committed
952
953
    if (x == glist_getcanvas(x))
        canvas_vis(x, 0);
954
955
    if (x->gl_editor)
        canvas_destroy_editor(x);   /* bug workaround; should already be gone*/
956

957
958
    if (x-> x_handle) scalehandle_free( x->x_handle);
    if (x->x_mhandle) scalehandle_free(x->x_mhandle);
959
    
960
    canvas_unbind(x);
Miller Puckette's avatar
Miller Puckette committed
961
962
963
964
965
    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));
    }
966
    canvas_resume_dsp(dspstate);
967
968
969
    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
970
971
972
    gfxstub_deleteforkey(x);        /* probably unnecessary */
    if (!x->gl_owner)
        canvas_takeofflist(x);
973
974
    if (x->gl_svg)                   /* for groups, free the data */
        canvas_group_free(x->gl_svg);
Miller Puckette's avatar
Miller Puckette committed
975
976
977
978
979
980
981
982
}

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

static void canvas_drawlines(t_canvas *x)
{
    t_linetraverser t;
    t_outconnect *oc;
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
983
    int issignal;
984
985
    linetraverser_start(&t, x);
    while (oc = linetraverser_next(&t))
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
986
987
    {
        issignal = (outlet_getsymbol(t.tr_outlet) == &s_signal ? 1 : 0);
988
989
990
991
992
993
994
995
996
997
998
999
1000
        if (!(pd_class(&t.tr_ob2->ob_g.g_pd) == preset_node_class &&
              pd_class(&t.tr_ob->ob_g.g_pd) != message_class))
            canvas_drawconnection(glist_getcanvas(x), t.tr_lx1, t.tr_ly1,
                t.tr_lx2, t.tr_ly2, (t_int)oc, issignal);

        /*sys_vgui(".x%lx.c create polyline %d %d %d %d -strokewidth %s "
                   "-stroke %s -tags {l%lx all_cords %s}\n",
              glist_getcanvas(x), t.tr_lx1, t.tr_ly1, t.tr_lx2, t.tr_ly2, 
              (issignal ? "$pd_colors(signal_cord_width)" :
                  "$pd_colors(control_cord_width)"),
              (issignal ? "$pd_colors(signal_cord)" :
                  "$pd_colors(control_cord)"),
              oc);*/
Miller Puckette's avatar
Miller Puckette committed
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
    }
}

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)
        {
1014
            /*sys_vgui(".x%lx.c coords l%lx %d %d %d %d\n",
Miller Puckette's avatar
Miller Puckette committed
1015
                glist_getcanvas(x), oc,
1016
                    t.tr_lx1, t.tr_ly1, t.tr_lx2, t.tr_ly2);*/
1017
        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
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
        }
    }
}

    /* 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)
        {
1032
            if (x->gl_editor && glist_isvisible(glist_getcanvas(x)))
Miller Puckette's avatar
Miller Puckette committed
1033
1034
1035
            {
                sys_vgui(".x%lx.c delete l%lx\n",
                    glist_getcanvas(x), oc);
1036
                /* probably need a gui_vmess here */
Miller Puckette's avatar
Miller Puckette committed
1037
1038
1039
1040
1041
1042
            }
            obj_disconnect(t.tr_ob, t.tr_outno, t.tr_ob2, t.tr_inno);
        }
    }
}

1043
1044
    /*  delete all lines for the object 
        for efficient redrawing of connections */
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
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
1056
1057
1058
1059
                //sys_vgui(".x%lx.c delete l%lx\n",
                //    glist_getcanvas(x), oc);
                char tagbuf[MAXPDSTRING];
                sprintf(tagbuf, "l%lx", (long unsigned int)oc);
1060
1061
                gui_vmess("gui_canvas_delete_line", "xs",
                    glist_getcanvas(x), tagbuf);
1062
1063
1064
1065
1066
1067
            }
        }
    }
}


Miller Puckette's avatar
Miller Puckette committed
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
    /* kill all lines for one inlet or outlet */
void canvas_deletelinesforio(t_canvas *x, t_text *text,
    t_inlet *inp, t_outlet *outp)
{
    t_linetraverser t;
    t_outconnect *oc;
    linetraverser_start(&t, x);
    while (oc = linetraverser_next(&t))
    {
        if ((t.tr_ob == text && t.tr_outlet == outp) ||
            (t.tr_ob2 == text && t.tr_inlet == inp))
        {
            if (x->gl_editor)
            {
                sys_vgui(".x%lx.c delete l%lx\n",
                    glist_getcanvas(x), oc);
            }
            obj_disconnect(t.tr_ob, t.tr_outno, t.tr_ob2, t.tr_inno);
        }
    }
}

static void canvas_pop(t_canvas *x, t_floatarg fvis)
{
    if (fvis != 0)
        canvas_vis(x, 1);
    pd_popsym(&x->gl_pd);
    canvas_resortinlets(x);
    canvas_resortoutlets(x);
    x->gl_loading = 0;
1098
1099
    //sys_vgui("pdtk_canvas_force_getscroll .x%lx.c\n", x);
    //fprintf(stderr,"loading = 0 .x%lx owner=.x%lx\n", x, x->gl_owner);
Miller Puckette's avatar
Miller Puckette committed
1100
1101
}

1102
1103
1104
1105
1106
1107
1108
1109
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);
1110
    outlet_new(&gl->gl_obj, &s_anything);
1111
1112
}

Miller Puckette's avatar
Miller Puckette committed
1113
1114
1115
1116
1117
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;
1118
    int is_draw_command = 0;
1119
    //fprintf(stderr,"canvas_restore %lx\n", x);
1120
1121
    /* for [draw group] we add an inlet to the svg attr proxy */
    if (argc > 2 && argv[2].a_w.w_symbol == gensym("draw"))
1122
1123
    {
        group_svginit(x);
1124
        is_draw_command = 1;
1125
    }
1126
    if (argc > 3 || (is_draw_command && argc > 4))
Miller Puckette's avatar
Miller Puckette committed
1127
    {
1128
1129
        int offset = is_draw_command ? 4 : 3;
        t_atom *ap=argv+offset;
Miller Puckette's avatar
Miller Puckette committed
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
        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);
    }
}

1149
void canvas_loadbangsubpatches(t_canvas *x, t_symbol *s)
Miller Puckette's avatar
Miller Puckette committed
1150
1151
{
    t_gobj *y;
1152
    //t_symbol *s = gensym("loadbang");
Miller Puckette's avatar
Miller Puckette committed
1153
1154
    for (y = x->gl_list; y; y = y->g_next)
        if (pd_class(&y->g_pd) == canvas_class)
1155
1156
1157
1158
1159
        {
            if (!canvas_isabstraction((t_canvas *)y))
            {
            //fprintf(stderr,"%lx s:canvas_loadbangsubpatches %s\n",
            //    x, s->s_name);
1160
            canvas_loadbangsubpatches((t_canvas *)y, s);
1161
1162
            }
        }
1163
1164
    for (y = x->gl_list; y; y = y->g_next)
        if ((pd_class(&y->g_pd) != canvas_class) &&
1165
1166
1167
1168
1169
            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
1170
1171
}

1172
static void canvas_loadbangabstractions(t_canvas *x, t_symbol *s)
Miller Puckette's avatar
Miller Puckette committed
1173
1174
{
    t_gobj *y;
1175
    //t_symbol *s = gensym("loadbang");
Miller Puckette's avatar
Miller Puckette committed
1176
1177
    for (y = x->gl_list; y; y = y->g_next)
        if (pd_class(&y->g_pd) == canvas_class)
1178
1179
1180
1181
        {
            if (canvas_isabstraction((t_canvas *)y))
            {
            //fprintf(stderr,"%lx a:canvas_loadbang %s\n",x,s->s_name);
1182
            canvas_loadbangabstractions((t_canvas *)y, s);
1183
1184
1185
1186
1187
1188
1189
1190
1191
            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
1192
1193
1194
1195
}

void canvas_loadbang(t_canvas *x)
{
1196
    //t_gobj *y;
1197
1198
    // first loadbang preset hubs and nodes
    //fprintf(stderr,"%lx 0\n", x);
1199
1200
    canvas_loadbangabstractions(x, gensym("pre-loadbang"));
    canvas_loadbangsubpatches(x, gensym("pre-loadbang"));
1201
1202
    //fprintf(stderr,"%lx 1\n", x);
    // then do the regular loadbang
1203
1204
    canvas_loadbangabstractions(x, gensym("loadbang"));
    canvas_loadbangsubpatches(x, gensym("loadbang"));
1205
    //fprintf(stderr,"%lx 2\n", x);
Miller Puckette's avatar
Miller Puckette committed
1206
}
1207

Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
/* 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
1223

Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
    /* 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
1241

Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
    /* 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
1254

1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
// 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;
            }
        }
    }
}

1277
1278
/* needed for readjustment of garrays */
extern t_array *garray_getarray(t_garray *x);
1279
extern void garray_fittograph(t_garray *x, int n, int flag);
1280
1281
1282
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
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
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
1295
            txpix + cw, typix + ch);
1296
    /* readjust garrays (if any) */
Mathieu L Bouchard's avatar
Mathieu L Bouchard committed
1297
    t_gobj *g;
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
    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;
1315
                garray_fittograph(ga, num_elem, 1);
1316
1317
1318
            }
        }
    }
1319
    canvas_checkconfig(x);
Miller Puckette's avatar
Miller Puckette committed
1320
1321
1322
1323
1324
1325
}

void canvas_popabstraction(t_canvas *x)
{
    newest = &x->gl_pd;
    pd_popsym(&x->gl_pd);
1326
    //x->gl_loading = 1;
1327
    //fprintf(stderr,"loading = 1 .x%lx owner=.x%lx\n", x, x->gl_owner);
Miller Puckette's avatar
Miller Puckette committed
1328
1329
    canvas_resortinlets(x);
    canvas_resortoutlets(x);
1330
    x->gl_loading = 0;
1331
    //fprintf(stderr,"loading = 0 .x%lx owner=.x%lx\n", x, x->gl_owner);
Miller Puckette's avatar
Miller Puckette committed
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
}

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();
1349
    //fprintf(stderr,"subcanvas_new current canvas .x%lx\n", (t_int)z);
Miller Puckette's avatar
Miller Puckette committed
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
    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);
}

1363
void *group_new(t_symbol *s)
1364
1365
1366
1367
1368
{
    t_canvas *x = subcanvas_new(s);
    group_svginit(x);
    return (x);
}
Miller Puckette's avatar
Miller Puckette committed
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
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);
}

1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
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
1423
1424
1425
1426
1427
1428
1429
/* ------------------ table ---------------------------*/

static int tabcount = 0;

static void *table_new(t_symbol *s, t_floatarg f)
{
    t_atom a[9];
1430
    t_atom ga[4];
Miller Puckette's avatar
Miller Puckette committed
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
    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);

1456
1457
1458
1459
1460
    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
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473

    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);
}

1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
    /* return true if the "canvas" object should be bound to a name */
static int canvas_should_bind(t_canvas *x)
{
        /* FIXME should have a "backwards compatible" mode */
        /* not named "Pd" && (is top level || is subpatch) */
    return strcmp(x->gl_name->s_name, "Pd") && (!x->gl_owner || !x->gl_env);
}

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

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

Miller Puckette's avatar
Miller Puckette committed
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545