g_canvas.c 74.9 KB
Newer Older
Miller Puckette's avatar
Miller Puckette committed
1
2
3
4
5
6
7
8
9
10
11
12
/* Copyright (c) 1997-2001 Miller Puckette and others.
* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */

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

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

18
extern int do_not_redraw;
19
20
extern void canvas_drawconnection(t_canvas *x, int lx1, int ly1, int lx2, int ly2, t_int tag, int issignal);
extern void canvas_updateconnection(t_canvas *x, int lx1, int ly1, int lx2, int ly2, t_int tag);
Miller Puckette's avatar
Miller Puckette committed
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53

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

#define GLIST_DEFCANVASWIDTH 450
#define GLIST_DEFCANVASHEIGHT 300

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

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

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

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

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

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

static void glist_doupdatewindowlist(t_glist *gl, char *sbuf)
{
    t_gobj *g;
73
74
    if (glist_amreloadingabstractions)  /* not if we're in a reload */
        return;
Miller Puckette's avatar
Miller Puckette committed
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
    if (!gl->gl_owner)
    {
        /* this is a canvas; if we have a window, put on "windows" list */
        t_canvas *canvas = (t_canvas *)gl;
        if (canvas->gl_havewindow)
        {
            if (strlen(sbuf) + strlen(gl->gl_name->s_name) + 100 <= 1024)
            {
                char tbuf[1024];
                sprintf(tbuf, "{{%s} .x%lx} ", gl->gl_name->s_name,
                    (t_int)canvas);
                strcat(sbuf, tbuf);
            }
        }
    }
    for (g = gl->gl_list; g; g = g->g_next)
    {
        if (pd_class(&g->g_pd) == canvas_class)
            glist_doupdatewindowlist((t_glist *)g, sbuf);
    }
    return;
}

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

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

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


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

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

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

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

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

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

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

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

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

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

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

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

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

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

352
353
void canvasgop__clickhook(t_scalehandle *sh, int newstate);
void canvasgop__motionhook(t_scalehandle *sh,t_floatarg f1, t_floatarg f2);
354
extern void glist_setlastxy(t_glist *gl, int xval, int yval);
355

Miller Puckette's avatar
Miller Puckette committed
356
    /* make a new glist.  It will either be a "root" canvas or else
357
    it appears as a "text" object in another window (canvas_getcurrent() 
Miller Puckette's avatar
Miller Puckette committed
358
359
360
    tells us which.) */
t_canvas *canvas_new(void *dummy, t_symbol *sel, int argc, t_atom *argv)
{
361
362
363
364
365
366
367
368
369
    /* 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
370
371
372
373
374
375
    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);
376

Miller Puckette's avatar
Miller Puckette committed
377
    glist_init(x);
378
    //x->gl_magic_glass = magicGlass_new(x);
Miller Puckette's avatar
Miller Puckette committed
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
429
430
431
432
    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")));
433
    canvas_bind(x);
Miller Puckette's avatar
Miller Puckette committed
434
    x->gl_loading = 1;
435
    x->gl_unloading = 0;
436
    //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
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
    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);
454

455
    //dpsaha@vt.edu gop resize (refactored by mathieu)
456
457
    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);
458
459

    x->u_queue = canvas_undo_init(x);
460
    //glist_setlastxy(x, 20, 20);
Miller Puckette's avatar
Miller Puckette committed
461
462
463
464
465
466
467
    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)
{
468
469
    //IB: first delete the graph in case we are downsizing the object size via script
    canvas_setgraph(x, 0, 0);
470

Miller Puckette's avatar
Miller Puckette committed
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
    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,
490
491
    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
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
{
    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)
    {
516
        t_float zz;
Miller Puckette's avatar
Miller Puckette committed
517
518
519
520
521
522
523
524
525
        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;
526
527
    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
528
529
530
    if (px1 >= px2 || py1 >= py2)
        px1 = 100, py1 = 20, px2 = 100 + GLIST_DEFGRAPHWIDTH,
            py2 = 20 + GLIST_DEFGRAPHHEIGHT;
531

Miller Puckette's avatar
Miller Puckette committed
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
    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;
547
    canvas_bind(x);
Miller Puckette's avatar
Miller Puckette committed
548
549
550
551
552
553
554
    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);
555
    if (!do_not_redraw) scrollbar_update(glist_getcanvas(g));
Ivica Bukvic's avatar
Ivica Bukvic committed
556
    //fprintf(stderr,"    ... %f %f\n", x->gl_x1, x->gl_x2);
Miller Puckette's avatar
Miller Puckette committed
557
558
559
    return (x);
}

560
561
extern int we_are_undoing;

Miller Puckette's avatar
Miller Puckette committed
562
563
564
    /* call glist_addglist from a Pd message */
void glist_glist(t_glist *g, t_symbol *s, int argc, t_atom *argv)
{
565
    if (canvas_hasarray(g)) return;
566
    pd_vmess(&g->gl_pd, gensym("editmode"), "i", 1);
567
    t_symbol *sym = atom_getsymbolarg(0, argc, argv);
568
569
    /* 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_;  
570
571
572
573
574
575
576
577
    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
578
    glist_addglist(g, sym, x1, y1, x2, y2, px1, py1, px2, py2);
579
580
581
    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
582
583
584
585
586
587
}

    /* 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)
{
588
    // testing to see if we have an array and force hiding text (later update GUI accordingly)
589
590
    // we likely need this to silently update legacy arrays
    // (no regressions are expected but this needs to be tested)
591
592
593
594
595
596
    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;
    }
597
598
    if (hasarray)  {
        x->gl_isgraph = 1;
599
        x->gl_hidetext = 1;
600
    }
601
    return (x->gl_isgraph|(x->gl_hidetext<<1));
Miller Puckette's avatar
Miller Puckette committed
602
603
604
605
}

    /* This is sent from the GUI to inform a toplevel that its window has been
    moved or resized. */
606
void canvas_setbounds(t_canvas *x, int x1, int y1, int x2, int y2)
Miller Puckette's avatar
Miller Puckette committed
607
{
608
    //fprintf(stderr,"canvas_setbounds %d %d %d %d\n", x1, y1, x2, y2);
609

Miller Puckette's avatar
Miller Puckette committed
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
    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. */
625
        t_float diff = x->gl_y1 - x->gl_y2;
Miller Puckette's avatar
Miller Puckette committed
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
        t_gobj *y;
        x->gl_y1 = heightwas * diff;
        x->gl_y2 = x->gl_y1 - diff;
            /* and move text objects accordingly; they should stick
            to the bottom, not the top. */
        for (y = x->gl_list; y; y = y->g_next)
            if (pd_checkobject(&y->g_pd))
                gobj_displace(y, x, 0, heightchange);
        canvas_redraw(x);
    }
}

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

void canvas_reflecttitle(t_canvas *x)
{
    char namebuf[MAXPDSTRING];
    t_canvasenvironment *env = canvas_getenv(x);
    if (env->ce_argc)
    {
        int i;
        strcpy(namebuf, " (");
        for (i = 0; i < env->ce_argc; i++)
        {
            if (strlen(namebuf) > MAXPDSTRING/2 - 5)
                break;
            if (i != 0)
                strcat(namebuf, " ");
            atom_string(&env->ce_argv[i], namebuf + strlen(namebuf), 
                MAXPDSTRING/2);
        }
        strcat(namebuf, ")");
    }
    else namebuf[0] = 0;
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
666
667
668
669
670
#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
671
672
673
674
675
676
677
678
    //if(glist_havewindow(x) || !x->gl_isgraph || x->gl_isgraph && x->gl_havewindow || x->gl_loading || x->gl_dirty) {

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

    sys_vgui("wm title .x%lx {%s%c%s - %s}\n", 
        x, x->gl_name->s_name, (x->gl_dirty? '*' : ' '), namebuf,
Miller Puckette's avatar
Miller Puckette committed
679
            canvas_getdir(x)->s_name);
680
//}
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
681
#endif
Miller Puckette's avatar
Miller Puckette committed
682
683
}

Miller Puckette's avatar
Miller Puckette committed
684
685
    /* mark a glist dirty or clean */
void canvas_dirty(t_canvas *x, t_floatarg n)
Miller Puckette's avatar
Miller Puckette committed
686
687
{
    t_canvas *x2 = canvas_getrootfor(x);
688
689
    if (glist_amreloadingabstractions)
        return;
Miller Puckette's avatar
Miller Puckette committed
690
691
692
    if ((unsigned)n != x2->gl_dirty)
    {
        x2->gl_dirty = n;
Miller Puckette's avatar
test7    
Miller Puckette committed
693
694
        if (glist_isvisible(x2))
            canvas_reflecttitle(x2);
Miller Puckette's avatar
Miller Puckette committed
695
696
697
    }
}

698
699
700
701
702
703
704
705
706
707
extern t_canvas *sc_mouseover_canvas;
void canvas_scalar_mouseover(t_canvas *x, t_symbol *sendsym, t_floatarg state)
{
    t_atom at[1];
    SETFLOAT(&at[0], state);
    sc_mouseover_canvas = x;
    if (sendsym->s_thing) typedmess(sendsym->s_thing, gensym("mouseover"),
        1, at);
}

708
709
extern void canvas_check_nlet_highlights(t_canvas *x);

710
711
712
/*********** dpsaha@vt.edu resize move hooks ****************/
void canvas_draw_gop_resize_hooks(t_canvas* x)
{
713
714
    t_scalehandle *sh = (t_scalehandle *)(x->x_handle);
    t_scalehandle *mh = (t_scalehandle *)(x->x_mhandle);
715
    //fprintf(stderr,"draw_gop_resize_hooks START\n");
716
717
718
719
720
721
    //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
722
        //fprintf(stderr,"draw_gop_resize_hooks DRAW %lx %lx\n", (t_int)x, (t_int)glist_getcanvas(x));
723
724
        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);
725

726
        scalehandle_draw_select(sh,
727
            -1-x->gl_obj.te_xpix+x->gl_xmargin + x->gl_pixwidth,
728
            -1-x->gl_obj.te_ypix+x->gl_ymargin + x->gl_pixheight/*,GOP_resblob*/);
729
        scalehandle_draw_select(mh,
730
            2+SCALEHANDLE_WIDTH -x->gl_obj.te_xpix+x->gl_xmargin,
731
            2+SCALEHANDLE_HEIGHT-x->gl_obj.te_ypix+x->gl_ymargin /*,"GOP_movblob"*/);
732
733
734
    }
    else
    {
735
        //fprintf(stderr,"draw_gop_resize_hooks ERASE\n");
736
737
        scalehandle_draw_erase(sh);
        scalehandle_draw_erase(mh);
738
739
    }
    canvas_check_nlet_highlights(x);
740
741
742
}
/*****************************************************************************/

Miller Puckette's avatar
Miller Puckette committed
743
744
void canvas_drawredrect(t_canvas *x, int doit)
{
745
746
    if (doit)
    {
747
748
        int x1=x->gl_xmargin, y1=x->gl_ymargin;
        int x2=x1+x->gl_pixwidth, y2=y1+x->gl_pixheight;
Miller Puckette's avatar
Miller Puckette committed
749
750
        sys_vgui(".x%lx.c create line\
            %d %d %d %d %d %d %d %d %d %d -fill #ff8080 -tags GOP\n",
751
            glist_getcanvas(x), x1, y1, x2, y1, x2, y2, x1, y2, x1, y1);
752
753
754
755
        //dpsaha@vt.edu for drawing the GOP_blobs
        if (x->gl_goprect && x->gl_edit)
            canvas_draw_gop_resize_hooks(x);
    }
Miller Puckette's avatar
Miller Puckette committed
756
757
758
759
760
761
762
763
    else sys_vgui(".x%lx.c delete GOP\n",  glist_getcanvas(x));
}

    /* the window becomes "mapped" (visible and not miniaturized) or
    "unmapped" (either miniaturized or just plain gone.)  This should be
    called from the GUI after the fact to "notify" us that we're mapped. */
void canvas_map(t_canvas *x, t_floatarg f)
{
764
    //fprintf(stderr,"canvas_map %lx %f\n", (t_int)x, f);
Miller Puckette's avatar
Miller Puckette committed
765
766
767
768
    int flag = (f != 0);
    t_gobj *y;
    if (flag)
    {
Ivica Ico Bukvic's avatar
Ivica Ico Bukvic committed
769
770
771
772
773
774
775
        t_selection *sel;
        if (!x->gl_havewindow)
        {
            bug("canvas_map");
            canvas_vis(x, 1);
        }

776
777
778
779
        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
780
781
        else for (y = x->gl_list; y; y = y->g_next) {
            gobj_vis(y, x, 1);
782
783
784
785
        }
        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
786
787
788
789
        x->gl_mapped = 1;
        canvas_drawlines(x);
        if (x->gl_isgraph && x->gl_goprect)
            canvas_drawredrect(x, 1);
790
        scrollbar_update(x);
791
        //}
Miller Puckette's avatar
Miller Puckette committed
792
793
794
    }
    else
    {
795
        //fprintf(stderr,"canvas_map 0\n");
Miller Puckette's avatar
Miller Puckette committed
796
797
        if (glist_isvisible(x))
        {
798
            /* just clear out the whole canvas */
799
            sys_vgui(".x%lx.c dtag all selected\n", x);
800
            //sys_vgui(".x%lx.c delete all\n", x);
801
            sys_vgui("foreach item [.x%lx.c find withtag {(!root)}] { .x%lx.c delete $item }\n", x, x);
Miller Puckette's avatar
Miller Puckette committed
802
803
804
805
806
807
808
            x->gl_mapped = 0;
        }
    }
}

void canvas_redraw(t_canvas *x)
{
809
810
    if (do_not_redraw) return;
    //fprintf(stderr,"canvas_redraw %lx\n", (t_int)x);
Miller Puckette's avatar
Miller Puckette committed
811
812
    if (glist_isvisible(x))
    {
813
        //fprintf(stderr,"canvas_redraw glist_isvisible=true\n");
Miller Puckette's avatar
Miller Puckette committed
814
815
        canvas_map(x, 0);
        canvas_map(x, 1);
816
817
818
819
820
821

        /* 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
822
823
824
825
826
827
828
    }
}

    /* we call this on a non-toplevel glist to "open" it into its
    own window. */
void glist_menu_open(t_glist *x)
{
829
    if (glist_isvisible(x))
Miller Puckette's avatar
Miller Puckette committed
830
    {
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
        if (!glist_istoplevel(x))
        {
            t_glist *gl2 = x->gl_owner;
            if (!gl2) 
                bug("glist_menu_open"); /* shouldn't happen but not dangerous */
            else
            {
                /* erase ourself in parent window */
                gobj_vis(&x->gl_gobj, gl2, 0);
                /* get rid of our editor (and subeditors) */
                if (x->gl_editor)
                    canvas_destroy_editor(x);
                x->gl_havewindow = 1;
                /* redraw ourself in parent window (blanked out this time) */
                gobj_vis(&x->gl_gobj, gl2, 1);
            }
        }
        else
        {
            sys_vgui("focus .x%lx\n", (t_int)x);
        }
    }
    else
    {
855
        if (x->gl_editor)
856
857
        canvas_destroy_editor(x);
    }
Miller Puckette's avatar
Miller Puckette committed
858
859
860
861
862
    canvas_vis(x, 1);
}

int glist_isvisible(t_glist *x)
{
863
    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
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
}

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);
}

882
883
extern void canvas_group_free(t_pd *x);

Miller Puckette's avatar
Miller Puckette committed
884
885
void canvas_free(t_canvas *x)
{
886
    //fprintf(stderr,"canvas_free %lx\n", (t_int)x);
Miller Puckette's avatar
Miller Puckette committed
887
888
    t_gobj *y;
    int dspstate = canvas_suspend_dsp();
Ivica Ico Bukvic's avatar
Ivica Ico Bukvic committed
889

890
    //canvas_noundo(x);
891
    canvas_undo_free(x);
892

Miller Puckette's avatar
Miller Puckette committed
893
894
895
896
897
    if (canvas_editing == x)
        canvas_editing = 0;
    if (canvas_whichfind == x)
        canvas_whichfind = 0;
    glist_noselect(x);
898
    x->gl_unloading = 1;
Miller Puckette's avatar
Miller Puckette committed
899
900
    while (y = x->gl_list)
        glist_delete(x, y);
Miller Puckette's avatar
Miller Puckette committed
901
902
    if (x == glist_getcanvas(x))
        canvas_vis(x, 0);
903
904
    if (x->gl_editor)
        canvas_destroy_editor(x);   /* bug workaround; should already be gone*/
905

906
907
    if (x-> x_handle) scalehandle_free( x->x_handle);
    if (x->x_mhandle) scalehandle_free(x->x_mhandle);
908
    
909
    canvas_unbind(x);
Miller Puckette's avatar
Miller Puckette committed
910
911
912
913
914
    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));
    }
915
    canvas_resume_dsp(dspstate);
916
917
918
    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
919
920
921
    gfxstub_deleteforkey(x);        /* probably unnecessary */
    if (!x->gl_owner)
        canvas_takeofflist(x);
922
923
    if (x->gl_svg)                   /* for groups, free the data */
        canvas_group_free(x->gl_svg);
Miller Puckette's avatar
Miller Puckette committed
924
925
926
927
928
929
930
931
}

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

static void canvas_drawlines(t_canvas *x)
{
    t_linetraverser t;
    t_outconnect *oc;
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
932
    int issignal;
933
934
    linetraverser_start(&t, x);
    while (oc = linetraverser_next(&t))
Hans-Christoph Steiner's avatar
Hans-Christoph Steiner committed
935
936
    {
        issignal = (outlet_getsymbol(t.tr_outlet) == &s_signal ? 1 : 0);
937
938
939
940
941
942
943
944
945
946
947
948
949
        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
950
951
952
953
954
955
956
957
958
959
960
961
962
    }
}

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)
        {
963
            /*sys_vgui(".x%lx.c coords l%lx %d %d %d %d\n",
Miller Puckette's avatar
Miller Puckette committed
964
                glist_getcanvas(x), oc,
965
                    t.tr_lx1, t.tr_ly1, t.tr_lx2, t.tr_ly2);*/
966
        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
967
968
969
970
971
972
973
974
975
976
977
978
979
980
        }
    }
}

    /* 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)
        {
981
            if (x->gl_editor && glist_isvisible(glist_getcanvas(x)))
Miller Puckette's avatar
Miller Puckette committed
982
983
984
985
986
987
988
989
990
            {
                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);
        }
    }
}

991
992
    /*  delete all lines for the object 
        for efficient redrawing of connections */
993
994
995
996
997
998
999
1000
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)
For faster browsing, not all history is shown. View entire blame