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Annotation of researchv9/X11/src/X.V11R1/clients/emacs/xmenu.c, revision 1.1

1.1     ! root        1: /* X Communication module for terminals which understand the X protocol.
        !             2:    Copyright (C) 1986 Free Software Foundation, Inc.
        !             3: 
        !             4: This file is part of GNU Emacs.
        !             5: 
        !             6: GNU Emacs is distributed in the hope that it will be useful,
        !             7: but WITHOUT ANY WARRANTY.  No author or distributor
        !             8: accepts responsibility to anyone for the consequences of using it
        !             9: or for whether it serves any particular purpose or works at all,
        !            10: unless he says so in writing.  Refer to the GNU Emacs General Public
        !            11: License for full details.
        !            12: 
        !            13: Everyone is granted permission to copy, modify and redistribute
        !            14: GNU Emacs, but only under the conditions described in the
        !            15: GNU Emacs General Public License.   A copy of this license is
        !            16: supposed to have been given to you along with GNU Emacs so you
        !            17: can know your rights and responsibilities.  It should be in a
        !            18: file named COPYING.  Among other things, the copyright notice
        !            19: and this notice must be preserved on all copies.
        !            20: 
        !            21:  * X pop-up deck-of-cards menu facility for gnuemacs.
        !            22:  *
        !            23:  * Written by Jon Arnold and Roman Budzianowski
        !            24:  * Mods and rewrite by Robert Krawitz
        !            25:  *
        !            26:  */
        !            27: 
        !            28: /* $Source: /@/orpheus/u1/X11/clients/emacs/RCS/xmenu.c,v $
        !            29:  * $Author: newman $
        !            30:  * $Locker:  $
        !            31:  * $Header: xmenu.c,v 1.1 87/09/12 16:33:40 newman Exp $
        !            32:  *
        !            33:  */
        !            34: 
        !            35: #ifndef lint
        !            36: static char *rcsid_GXMenu_c = "$Header: xmenu.c,v 1.1 87/09/12 16:33:40 newman Exp $";
        !            37: #endif lint
        !            38: 
        !            39: #ifdef HAVE_X_MENU
        !            40: 
        !            41: #include "config.h"
        !            42: #include <signal.h>
        !            43: #include "xterm.h"
        !            44: 
        !            45: /* Load sys/types.h if not already loaded.
        !            46:    In some systems loading it twice is suicidal.  */
        !            47: #ifndef makedev
        !            48: #include <sys/types.h>
        !            49: #endif
        !            50: 
        !            51: #include <stdio.h>
        !            52: #undef NULL
        !            53: #include "dispextern.h"
        !            54: #include <sys/time.h>
        !            55: #include <fcntl.h>
        !            56: #include "lisp.h"
        !            57: #include "window.h"
        !            58: #include <X11/XMenu.h>
        !            59: 
        !            60: #define min(x,y) (((x) < (y)) ? (x) : (y))
        !            61: #define max(x,y) (((x) > (y)) ? (x) : (y))
        !            62: 
        !            63: #define NUL 0
        !            64: 
        !            65: #ifndef TRUE
        !            66: #define TRUE 1
        !            67: #define FALSE 0
        !            68: #endif TRUE
        !            69: extern Display *XXdisplay;
        !            70: extern int XXxoffset,XXyoffset;
        !            71: extern int XXfontw,XXfonth;
        !            72: extern int (*handler)();
        !            73: extern int request_sigio(), unrequest_sigio();
        !            74: 
        !            75: /*************************************************************/
        !            76: 
        !            77: XMenuQuit ()
        !            78: {
        !            79:   error("Unknown XMenu error");
        !            80: }
        !            81: 
        !            82: DEFUN ("x-popup-menu",Fx_popup_menu, Sx_popup_menu, 1, 2, 0,
        !            83:        "Interface to XMenu library; permits creation and use of\n\
        !            84: deck-of-cards pop-up menus.\n\
        !            85: \n\
        !            86: ARG is a position specification; it is a list of (Xoffset, Yoffset)\n\
        !            87: from the top-left corner of the editor window.  Note that this offset\n\
        !            88: is relative to the center of the first line in the first pane of the\n\
        !            89: menu, not the top left of the menu as a whole.\n\
        !            90: \n\
        !            91: MENU is a specifier for a menu.  It is a list of the form\n\
        !            92: (title pane1 pane2...), and each pane is a list of form\n\
        !            93: (title (line item)...).  Each line should be a string, and item should\n\
        !            94: be the return value for that line (i. e. if it is selected.")
        !            95:        (arg,menu)
        !            96:      Lisp_Object arg,menu;
        !            97: {
        !            98:   int number_of_panes;
        !            99:   Lisp_Object XMenu_return;
        !           100:   int XMenu_xpos,XMenu_ypos;
        !           101:   char **menus;
        !           102:   char ***names;
        !           103:   Lisp_Object **obj_list;
        !           104:   int *items;
        !           105:   char *title;
        !           106:   char *error_name;
        !           107:   Lisp_Object ltitle, selection;
        !           108:   extern Lisp_Object Vx_mouse_abs_pos;
        !           109:   Lisp_Object XEmacsMenu();
        !           110:   int i;
        !           111:   int mask;
        !           112: 
        !           113:   check_xterm();
        !           114:   XMenu_xpos = XINT(Fcar(Vx_mouse_abs_pos));
        !           115:   XMenu_ypos = XINT(Fcar(Fcdr (Vx_mouse_abs_pos)));
        !           116:   ltitle = Fcar(menu);
        !           117:   CHECK_STRING(ltitle,1);
        !           118:   title = (char *) XSTRING(ltitle)->data;
        !           119:   /* title = (char *) xmalloc ((XSTRING(ltitle)->size + 1) * sizeof(char));
        !           120:      bcopy (XSTRING(ltitle)->data, title, XSTRING(ltitle)->size); */
        !           121:   number_of_panes=list_of_panes(&obj_list, &menus, &names, &items, Fcdr(menu));
        !           122: #ifdef XDEBUG
        !           123:   fprintf(stderr,"Panes= %d\n", number_of_panes);
        !           124:   for(i=0; i < number_of_panes; i++)
        !           125:     {
        !           126:       fprintf (stderr,"Pane %d lines %d title %s\n", i, items[i], menus[i]);
        !           127:       for (j=0; j < items[i]; j++)
        !           128:        {
        !           129:          fprintf (stderr,"    Item %d %s\n", j, names[i][j]);
        !           130:        }
        !           131:     }
        !           132: #endif
        !           133:   mask = sigblock (sigmask (SIGIO));
        !           134:   XSetErrorHandler(XMenuQuit);
        !           135:   selection = XEmacsMenu(RootWindow(XXdisplay,0), XMenu_xpos, XMenu_ypos, names, menus,
        !           136:                         items, number_of_panes, obj_list ,title, &error_name);
        !           137:   XSetErrorHandler(handler);
        !           138:   sigsetmask (mask);
        !           139:   /** fprintf(stderr,"selection = %x\n",selection);  **/
        !           140:   if (selection != NUL)
        !           141:     {                          /* selected something */
        !           142:       XMenu_return = selection;
        !           143:     }
        !           144:   else
        !           145:     {                          /* nothing selected */
        !           146:       XMenu_return = Qnil;
        !           147:     }
        !           148:   /* now free up the strings */
        !           149:   for (i=0; i < number_of_panes; i++)
        !           150:     {
        !           151:       free(names[i]);
        !           152:       free(obj_list[i]);
        !           153:     }
        !           154:   free(menus);
        !           155:   free(obj_list);
        !           156:   free(names);
        !           157:   free(items);
        !           158:   /*   free(title); */
        !           159:   if (error_name) error(error_name);
        !           160:   return XMenu_return;
        !           161: }
        !           162: 
        !           163: struct indices {
        !           164:   int pane;
        !           165:   int line;
        !           166: };
        !           167: 
        !           168: Lisp_Object
        !           169: XEmacsMenu(parent, startx, starty, line_list, pane_list, line_cnt,
        !           170:                      pane_cnt, item_list, title, errorstr)
        !           171:      Window parent;            
        !           172:      int startx, starty;       /* upper left corner position BROKEN */
        !           173:      char **line_list[];       /* list of strings for items */
        !           174:      char *pane_list[];                /* list of pane titles */
        !           175:      char *title;
        !           176:      int pane_cnt;             /* total number of panes */
        !           177:      Lisp_Object *item_list[]; /* All items */
        !           178:      int line_cnt[];           /* Lines in each pane */
        !           179:      char **errorstr;          /* Error returned */
        !           180: {
        !           181:   XMenu *GXMenu;
        !           182:   int panes, sel, lpane, status;
        !           183:   Lisp_Object entry;
        !           184:   /* struct indices *datap, *datap_save; */
        !           185:   char *datap;
        !           186:   
        !           187:   *errorstr = (char *) 0;              /* Initialize errorstr pointer to null */
        !           188:   if ((GXMenu = XMenuCreate(XXdisplay, parent, "emacs" )) == NUL )
        !           189:     {
        !           190:       *errorstr = "Can't create menu";
        !           191:       /* error("Can't create menu"); */
        !           192:       return(0);
        !           193:     }
        !           194:   
        !           195:   for (panes=0; panes < pane_cnt; panes++ )
        !           196:     ;
        !           197:   /* datap = (struct indices *) xmalloc (lines * sizeof(struct indices)); */
        !           198:   /*datap = (char *) xmalloc(lines * sizeof(char));
        !           199:     datap_save = datap;*/
        !           200:   
        !           201:   for (panes = 0;panes < pane_cnt; panes++ )
        !           202:     {
        !           203:       /* create all the necessary panes */
        !           204:       if ((lpane= XMenuAddPane(XXdisplay, GXMenu, pane_list[panes] , TRUE ))
        !           205:          == XM_FAILURE)
        !           206:        {
        !           207:          XMenuDestroy(XXdisplay, GXMenu);
        !           208:          *errorstr = "Can't create pane";
        !           209:          /* error("Can't create pane"); */
        !           210:          /* free(datap); */
        !           211:          return(0);
        !           212:        }
        !           213:       for ( sel = 0; sel < line_cnt[panes] ; sel++ )
        !           214:        {
        !           215:          /* add the selection stuff to the menus */
        !           216:          /* datap[sel+sofar].pane = panes;
        !           217:             datap[sel+sofar].line = sel; */
        !           218:          if (XMenuAddSelection(XXdisplay, GXMenu, lpane, 0, line_list[panes][sel], TRUE)
        !           219:              == XM_FAILURE)
        !           220:            {
        !           221:              XMenuDestroy(XXdisplay, GXMenu);
        !           222:              /* free(datap); */
        !           223:              *errorstr = "Can't add selection to menu";
        !           224:              /* error ("Can't add selection to menu"); */
        !           225:              return(0);
        !           226:            }
        !           227:        }
        !           228:     }
        !           229:   /* all set and ready to fly */
        !           230:   XMenuSetFreeze(GXMenu, TRUE);
        !           231:   XMenuRecompute(XXdisplay,GXMenu);
        !           232:   panes = sel = 0;
        !           233:   
        !           234:   status = XMenuActivate(XXdisplay, GXMenu, &panes, &sel, startx, starty,
        !           235:                         ButtonReleaseMask, &datap);
        !           236:   switch (status ) {
        !           237:   case XM_SUCCESS:
        !           238: #ifdef XDEBUG
        !           239:     fprintf (stderr, "pane= %d line = %d\n", panes, sel);
        !           240: #endif
        !           241:     entry = item_list[panes][sel];
        !           242:     break;
        !           243:   case XM_FAILURE:
        !           244:     /*free (datap_save); */
        !           245:     /*XMenuDestroy(XXdisplay, GXMenu);*/
        !           246:     *errorstr = "Can't activate menu";
        !           247:     /* error("Can't activate menu"); */
        !           248:   case XM_IA_SELECT:
        !           249:   case XM_NO_SELECT:
        !           250:     entry = Qnil;
        !           251:     break;
        !           252:   }
        !           253:   XMenuDestroy(XXdisplay, GXMenu);
        !           254:   XFlush(XXdisplay);
        !           255:   if (XPending(XXdisplay))
        !           256:          read_events_block();
        !           257:   /*free(datap_save);*/
        !           258:   return(entry);
        !           259: }
        !           260: 
        !           261: syms_of_xmenu ()
        !           262: {
        !           263:   defsubr (&Sx_popup_menu);
        !           264: }
        !           265: 
        !           266: list_of_panes (vector, panes, names, items, menu)
        !           267:      Lisp_Object ***vector;    /* RETURN all menu objects */
        !           268:      char ***panes;            /* RETURN pane names */
        !           269:      char ****names;           /* RETURN all line names */
        !           270:      int **items;              /* RETURN number of items per pane */
        !           271:      Lisp_Object menu;
        !           272: {
        !           273:   Lisp_Object tail, item, item1;
        !           274:   int i;
        !           275:   
        !           276:   if (XTYPE (menu) != Lisp_Cons) menu = wrong_type_argument(Qlistp, item);
        !           277:   
        !           278:   i= XFASTINT(Flength(menu,1));
        !           279: 
        !           280:   *vector = (Lisp_Object **) xmalloc(i * sizeof (Lisp_Object *));
        !           281:   *panes = (char **) xmalloc(i * sizeof (char *));
        !           282:   *items = (int *) xmalloc(i * sizeof (int));
        !           283:   *names = (char ***) xmalloc(i * sizeof (char **));
        !           284: 
        !           285:   for (i=0,tail = menu; !NULL (tail); tail = Fcdr (tail), i++)
        !           286:     {
        !           287:        item = Fcdr(Fcar(tail));
        !           288:        if (XTYPE (item) != Lisp_Cons) (void) wrong_type_argument(Qlistp, item);
        !           289: #ifdef XDEBUG
        !           290:        fprintf (stderr, "list_of_panes check tail, i=%d\n", i);
        !           291: #endif
        !           292:        item1 = Fcar(Fcar(tail));
        !           293:        CHECK_STRING (item1, 1);
        !           294: #ifdef XDEBUG
        !           295:        fprintf (stderr, "list_of_panes check pane, i=%d%s\n", i,
        !           296:                XSTRING(item1)->data);
        !           297: #endif
        !           298:        (*panes)[i] = (char *) XSTRING(item1)->data;
        !           299:        (*items)[i] = list_of_items ((*vector)+i, (*names)+i, item);
        !           300:        /* (*panes)[i] = (char *) xmalloc((XSTRING(item1)->size)+1);
        !           301:          bcopy (XSTRING (item1)->data, (*panes)[i], XSTRING(item1)->size + 1)
        !           302:          ; */
        !           303:     }
        !           304:   return i;
        !           305: }
        !           306:      
        !           307: 
        !           308: list_of_items (vector,names,pane)  /* get list from emacs and put to vector */
        !           309:      Lisp_Object **vector;     /* RETURN menu "objects" */
        !           310:      char ***names;            /* RETURN line names */
        !           311:      Lisp_Object pane;
        !           312: {
        !           313:   Lisp_Object tail, item, item1;
        !           314:   int i;
        !           315: 
        !           316:   if (XTYPE (pane) != Lisp_Cons) pane = wrong_type_argument(Qlistp, item);
        !           317:   
        !           318:   i= XFASTINT(Flength(pane,1));
        !           319: 
        !           320:   *vector = (Lisp_Object *) xmalloc(i * sizeof (Lisp_Object));
        !           321:   *names = (char **) xmalloc(i * sizeof (char *));
        !           322: 
        !           323:   for (i=0,tail = pane; !NULL (tail); tail = Fcdr (tail), i++)
        !           324:     {
        !           325:        item = Fcar(tail);
        !           326:        if (XTYPE (item) != Lisp_Cons) (void) wrong_type_argument(Qlistp, item);
        !           327: #ifdef XDEBUG
        !           328:        fprintf (stderr, "list_of_items check tail, i=%d\n", i);
        !           329: #endif
        !           330:        (*vector)[i] =  Fcdr (item);
        !           331:        item1 = Fcar(item);
        !           332:        CHECK_STRING (item1, 1);
        !           333: #ifdef XDEBUG
        !           334:        fprintf (stderr, "list_of_items check item, i=%d%s\n", i,
        !           335:                XSTRING(item1)->data);
        !           336: #endif
        !           337:        (*names)[i] = (char *) XSTRING(item1)->data;
        !           338:        /* (*names)[i] = (char *) xmalloc((XSTRING(item1)->size)+1);
        !           339:        bcopy (XSTRING (item1)->data, (*names)[i], XSTRING(item1)->size + 1); */
        !           340:     }
        !           341:   return i;
        !           342: }
        !           343: 
        !           344: #endif HAVE_X_MENU

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