diff options
Diffstat (limited to 'externals/vanilla/e_gfxstub.c')
| -rw-r--r-- | externals/vanilla/e_gfxstub.c | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/externals/vanilla/e_gfxstub.c b/externals/vanilla/e_gfxstub.c new file mode 100644 index 00000000..e3321ec9 --- /dev/null +++ b/externals/vanilla/e_gfxstub.c @@ -0,0 +1,174 @@ +/* Copyright (c) 1997-2000 Miller Puckette. +* For information on usage and redistribution, and for a DISCLAIMER OF ALL +* WARRANTIES, see the file, "LICENSE.txt," in this distribution. */ + +/* gfxstub stuff from pd-vanilla's x_gui.c */ + +/* dialogs. LATER, deal with the situation where the object goes +away before the panel does... */ + +#include "m_pd.h" +#include <stdio.h> +#include <string.h> +#ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif + +/* --------------------- graphics responder ---------------- */ + +/* make one of these if you want to put up a dialog window but want to be +protected from getting deleted and then having the dialog call you back. In +this design the calling object doesn't have to keep the address of the dialog +window around; instead we keep a list of all open dialogs. Any object that +might have dialogs, when it is deleted, simply checks down the dialog window +list and breaks off any dialogs that might later have sent messages to it. +Only when the dialog window itself closes do we delete the gfxstub object. */ + +static t_class *gfxstub_class; + +typedef struct _gfxstub +{ + t_pd x_pd; + t_pd *x_owner; + void *x_key; + t_symbol *x_sym; + struct _gfxstub *x_next; +} t_gfxstub; + +static t_gfxstub *gfxstub_list; + + /* create a new one. the "key" is an address by which the owner + will identify it later; if the owner only wants one dialog, this + could just be a pointer to the owner itself. The string "cmd" + is a TK command to create the dialog, with "%s" embedded in + it so we can provide a name by which the GUI can send us back + messages; e.g., "pdtk_canvas_dofont %s 10". */ + +void gfxstub_new(t_pd *owner, void *key, const char *cmd) +{ + char buf[4*MAXPDSTRING]; + char namebuf[80]; + t_gfxstub *x; + t_symbol *s; + /* if any exists with matching key, burn it. */ + for (x = gfxstub_list; x; x = x->x_next) + if (x->x_key == key) + gfxstub_deleteforkey(key); + if (strlen(cmd) + 50 > 4*MAXPDSTRING) + { + bug("audio dialog too long"); + bug("%x", cmd); + return; + } + x = (t_gfxstub *)pd_new(gfxstub_class); + sprintf(namebuf, ".gfxstub%lx", (t_int)x); + + s = gensym(namebuf); + pd_bind(&x->x_pd, s); + x->x_owner = owner; + x->x_sym = s; + x->x_key = key; + x->x_next = gfxstub_list; + gfxstub_list = x; + sprintf(buf, cmd, s->s_name); + sys_gui(buf); +} + +static void gfxstub_offlist(t_gfxstub *x) +{ + t_gfxstub *y1, *y2; + if (gfxstub_list == x) + gfxstub_list = x->x_next; + else for (y1 = gfxstub_list; y2 = y1->x_next; y1 = y2) + if (y2 == x) + { + y1->x_next = y2->x_next; + break; + } +} + + /* if the owner disappears, we still may have to stay around until our + dialog window signs off. Anyway we can now tell the GUI to destroy the + window. */ +void gfxstub_deleteforkey(void *key) +{ + t_gfxstub *y; + int didit = 1; + while (didit) + { + didit = 0; + for (y = gfxstub_list; y; y = y->x_next) + { + if (y->x_key == key) + { + sys_vgui("destroy .gfxstub%lx\n", y); + y->x_owner = 0; + gfxstub_offlist(y); + didit = 1; + break; + } + } + } +} + +/* --------- pd messages for gfxstub (these come from the GUI) ---------- */ + + /* "cancel" to request that we close the dialog window. */ +static void gfxstub_cancel(t_gfxstub *x) +{ + gfxstub_deleteforkey(x->x_key); +} + + /* "signoff" comes from the GUI to say the dialog window closed. */ +static void gfxstub_signoff(t_gfxstub *x) +{ + gfxstub_offlist(x); + pd_free(&x->x_pd); +} + +static t_binbuf *gfxstub_binbuf; + + /* a series of "data" messages rebuilds a scalar */ +static void gfxstub_data(t_gfxstub *x, t_symbol *s, int argc, t_atom *argv) +{ + if (!gfxstub_binbuf) + gfxstub_binbuf = binbuf_new(); + binbuf_add(gfxstub_binbuf, argc, argv); + binbuf_addsemi(gfxstub_binbuf); +} + /* the "end" message terminates rebuilding the scalar */ +static void gfxstub_end(t_gfxstub *x) +{ + canvas_dataproperties((t_canvas *)x->x_owner, + (t_scalar *)x->x_key, gfxstub_binbuf); + binbuf_free(gfxstub_binbuf); + gfxstub_binbuf = 0; +} + + /* anything else is a message from the dialog window to the owner; + just forward it. */ +static void gfxstub_anything(t_gfxstub *x, t_symbol *s, int argc, t_atom *argv) +{ + if (x->x_owner) + pd_typedmess(x->x_owner, s, argc, argv); +} + +static void gfxstub_free(t_gfxstub *x) +{ + pd_unbind(&x->x_pd, x->x_sym); +} + +static void gfxstub_setup(void) +{ + gfxstub_class = class_new(gensym("gfxstub"), 0, (t_method)gfxstub_free, + sizeof(t_gfxstub), CLASS_PD, 0); + class_addanything(gfxstub_class, gfxstub_anything); + class_addmethod(gfxstub_class, (t_method)gfxstub_signoff, + gensym("signoff"), 0); + class_addmethod(gfxstub_class, (t_method)gfxstub_data, + gensym("data"), A_GIMME, 0); + class_addmethod(gfxstub_class, (t_method)gfxstub_end, + gensym("end"), 0); + class_addmethod(gfxstub_class, (t_method)gfxstub_cancel, + gensym("cancel"), 0); +} |