Return to xmenu.c CVS log

Up to [CSRG BSD Unix] / 43BSDReno / contrib / emacs-18.55 / src

Annotation of 43BSDReno/contrib/emacs-18.55/src/xmenu.c, revision 1.1

1.1     ! root        1: /* X Communication module for terminals which understand the X protocol.
        !             2:    Copyright (C) 1986, 1988 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: /u2/third_party/gnuemacs.chow/src/RCS/xmenu.c,v $
        !            29:  * $Author: rlk $
        !            30:  * $Locker:  $
        !            31:  * $Header: xmenu.c,v 1.6 86/08/26 17:23:26 rlk Exp $
        !            32:  *
        !            33:  */
        !            34: 
        !            35: #ifndef lint
        !            36: static char *rcsid_GXMenu_c = "$Header: xmenu.c,v 1.6 86/08/26 17:23:26 rlk Exp $";
        !            37: #endif lint
        !            38: 
        !            39: /* On 4.3 this loses if it comes after xterm.h.  */
        !            40: #include <signal.h>
        !            41: #include "config.h"
        !            42: #include "lisp.h"
        !            43: #include "window.h"
        !            44: 
        !            45: /* This may include sys/types.h, and that somehow loses
        !            46:    if this is not done before the other system files.  */
        !            47: #ifdef X11
        !            48: #include "x11term.h"
        !            49: #else
        !            50: #include "xterm.h"
        !            51: #endif
        !            52: 
        !            53: /* Load sys/types.h if not already loaded.
        !            54:    In some systems loading it twice is suicidal.  */
        !            55: #ifndef makedev
        !            56: #include <sys/types.h>
        !            57: #endif
        !            58: 
        !            59: #include "dispextern.h"
        !            60: 
        !            61: #ifdef X11
        !            62: #include "../oldXMenu/XMenu.h"
        !            63: #define X11ONLY(arg) arg,
        !            64: #else
        !            65: #include <X/XMenu.h>
        !            66: #define X11ONLY(arg)
        !            67: #endif
        !            68: 
        !            69: #include "termopts.h"
        !            70: 
        !            71: #define min(x,y) (((x) < (y)) ? (x) : (y))
        !            72: #define max(x,y) (((x) > (y)) ? (x) : (y))
        !            73: 
        !            74: #define NUL 0
        !            75: 
        !            76: #ifndef TRUE
        !            77: #define TRUE 1
        !            78: #define FALSE 0
        !            79: #endif TRUE
        !            80: 
        !            81: #ifdef X11
        !            82: extern XFontStruct *fontinfo;
        !            83: extern Display *XXdisplay;
        !            84: extern Window  XXwindow;
        !            85: extern int     XXfontw;
        !            86: extern int     XXfonth;
        !            87: int    XXscreen;
        !            88: #else
        !            89: extern int XXxoffset,XXyoffset;
        !            90: extern FontInfo *fontinfo;
        !            91: #define        ButtonRelease ButtonReleased
        !            92: #endif /* not X11 */
        !            93: 
        !            94: extern int (*handler)();
        !            95: 
        !            96: /*************************************************************/
        !            97: 
        !            98: /* Ignoring the args is easiest.  */
        !            99: XMenuQuit ()
        !           100: {
        !           101:   error("Unknown XMenu error");
        !           102: }
        !           103: 
        !           104: DEFUN ("x-popup-menu",Fx_popup_menu, Sx_popup_menu, 1, 2, 0,
        !           105:        "Interface to XMenu library; permits creation and use of\n\
        !           106: deck-of-cards pop-up menus.\n\
        !           107: \n\
        !           108: ARG is a position specification; it is a list of (Xoffset, Yoffset)\n\
        !           109: from the top-left corner of the editor window.  Note that this offset\n\
        !           110: is relative to the center of the first line in the first pane of the\n\
        !           111: menu, not the top left of the menu as a whole.\n\
        !           112: \n\
        !           113: MENU is a specifier for a menu.  It is a list of the form\n\
        !           114: (title pane1 pane2...), and each pane is a list of form\n\
        !           115: (title (line item)...).  Each line should be a string, and item should\n\
        !           116: be the return value for that line (i. e. if it is selected.")
        !           117:        (arg,menu)
        !           118:      Lisp_Object arg,menu;
        !           119: {
        !           120:   int number_of_panes;
        !           121:   Lisp_Object XMenu_return;
        !           122:   int XMenu_xpos,XMenu_ypos;
        !           123:   char **menus;
        !           124:   char ***names;
        !           125:   Lisp_Object **obj_list;
        !           126:   int *items;
        !           127:   char *title;
        !           128:   char *error_name;
        !           129:   Lisp_Object ltitle, selection;
        !           130:   Lisp_Object XEmacsMenu();
        !           131:   int i, j;
        !           132: #ifdef X11
        !           133:   Window root_window, wjunk;
        !           134:   int ijunk;
        !           135:   extern Lisp_Object Vx_mouse_abs_pos;
        !           136: #endif
        !           137:   BLOCK_INPUT_DECLARE ();
        !           138: 
        !           139:   check_xterm();
        !           140: #ifdef X11
        !           141: #if 0
        !           142:   if (interrupt_input)
        !           143:     unrequest_sigio ();
        !           144: #endif
        !           145:   BLOCK_INPUT ();
        !           146:   root_window = RootWindow (XXdisplay, DefaultScreen(XXdisplay));
        !           147:   UNBLOCK_INPUT ();
        !           148:   XMenu_xpos = Fcar (Vx_mouse_abs_pos);
        !           149:   XMenu_ypos = Fcar (Fcdr (Vx_mouse_abs_pos));
        !           150: #if 0
        !           151:   if (interrupt_input)
        !           152:     request_sigio ();
        !           153: #endif
        !           154: #else
        !           155:   XMenu_xpos = fontinfo->width * XINT(Fcar(arg));
        !           156:   XMenu_ypos = fontinfo->height * XINT(Fcar(Fcdr (arg)));
        !           157:   XMenu_xpos += XXxoffset;
        !           158:   XMenu_ypos += XXyoffset;
        !           159: #endif
        !           160:   ltitle = Fcar(menu);
        !           161:   CHECK_STRING(ltitle,1);
        !           162:   title = (char *) XSTRING(ltitle)->data;
        !           163:   number_of_panes=list_of_panes(&obj_list, &menus, &names, &items, Fcdr(menu));
        !           164: #ifdef XDEBUG
        !           165:   fprintf(stderr,"Panes= %d\n", number_of_panes);
        !           166:   for(i=0; i < number_of_panes; i++)
        !           167:     {
        !           168:       fprintf (stderr,"Pane %d lines %d title %s\n", i, items[i], menus[i]);
        !           169:       for (j=0; j < items[i]; j++)
        !           170:        {
        !           171:          fprintf (stderr,"    Item %d %s\n", j, names[i][j]);
        !           172:        }
        !           173:     }
        !           174: #endif
        !           175:   BLOCK_INPUT ();
        !           176: #ifdef X11
        !           177:   XSetErrorHandler(XMenuQuit);
        !           178:   selection = XEmacsMenu(root_window, XMenu_xpos, XMenu_ypos, names, menus,
        !           179:                         items, number_of_panes, obj_list ,title, &error_name);
        !           180:   XSetErrorHandler(handler);
        !           181: #else
        !           182:   XErrorHandler(XMenuQuit);
        !           183:   selection = XEmacsMenu(RootWindow, XMenu_xpos, XMenu_ypos, names, menus,
        !           184:                         items, number_of_panes, obj_list ,title, &error_name);
        !           185:   XErrorHandler(handler);
        !           186: #endif
        !           187:   UNBLOCK_INPUT ();
        !           188:   force_input_read ();
        !           189:   /** fprintf(stderr,"selection = %x\n",selection);  **/
        !           190:   if (selection != NUL)
        !           191:     {                          /* selected something */
        !           192:       XMenu_return = selection;
        !           193:     }
        !           194:   else
        !           195:     {                          /* nothing selected */
        !           196:       XMenu_return = Qnil;
        !           197:     }
        !           198:   /* now free up the strings */
        !           199:   for (i=0; i < number_of_panes; i++)
        !           200:     {
        !           201:       free(names[i]);
        !           202:       free(obj_list[i]);
        !           203:     }
        !           204:   free(menus);
        !           205:   free(obj_list);
        !           206:   free(names);
        !           207:   free(items);
        !           208:   /*   free(title); */
        !           209:   if (error_name) error(error_name);
        !           210:   return XMenu_return;
        !           211: }
        !           212: 
        !           213: struct indices {
        !           214:   int pane;
        !           215:   int line;
        !           216: };
        !           217: 
        !           218: Lisp_Object
        !           219: XEmacsMenu(parent, startx, starty, line_list, pane_list, line_cnt,
        !           220:           pane_cnt, item_list, title, error)
        !           221:      Window parent;            
        !           222:      int startx, starty;       /* upper left corner position BROKEN */
        !           223:      char **line_list[];       /* list of strings for items */
        !           224:      char *pane_list[];                /* list of pane titles */
        !           225:      char *title;
        !           226:      int pane_cnt;             /* total number of panes */
        !           227:      Lisp_Object *item_list[]; /* All items */
        !           228:      int line_cnt[];           /* Lines in each pane */
        !           229:      char **error;             /* Error returned */
        !           230: {
        !           231:   XMenu *GXMenu;
        !           232:   int last, panes, selidx, lpane, status;
        !           233:   int lines, sofar;
        !           234:   Lisp_Object entry;
        !           235:   /* struct indices *datap, *datap_save; */
        !           236:   char *datap;
        !           237:   int ulx = 0, uly = 0, width, height;
        !           238:   int dispwidth, dispheight;
        !           239:   
        !           240:   *error = (char *) 0;         /* Initialize error pointer to null */
        !           241:   if ((GXMenu = XMenuCreate( X11ONLY (XXdisplay) parent, "emacs" )) == NUL )
        !           242:     {
        !           243:       *error = "Can't create menu";
        !           244:       /* error("Can't create menu"); */
        !           245:       return(0);
        !           246:     }
        !           247:   
        !           248:   for (panes=0, lines=0; panes < pane_cnt; lines += line_cnt[panes], panes++ )
        !           249:     ;
        !           250:   /* datap = (struct indices *) xmalloc (lines * sizeof(struct indices)); */
        !           251:   /*datap = (char *) xmalloc(lines * sizeof(char));
        !           252:     datap_save = datap;*/
        !           253:   
        !           254:   for (panes = 0, sofar=0;panes < pane_cnt;sofar +=line_cnt[panes], panes++ )
        !           255:     {
        !           256:       /* create all the necessary panes */
        !           257:       if ((lpane= XMenuAddPane( X11ONLY (XXdisplay) GXMenu, pane_list[panes] , TRUE ))
        !           258:          == XM_FAILURE)
        !           259:        {
        !           260:          XMenuDestroy(X11ONLY (XXdisplay) GXMenu);
        !           261:          *error = "Can't create pane";
        !           262:          /* error("Can't create pane"); */
        !           263:          /* free(datap); */
        !           264:          return(0);
        !           265:        }
        !           266:       for ( selidx = 0; selidx < line_cnt[panes] ; selidx++ )
        !           267:        {
        !           268:          /* add the selection stuff to the menus */
        !           269:          /* datap[selidx+sofar].pane = panes;
        !           270:             datap[selidx+sofar].line = selidx; */
        !           271:          if (XMenuAddSelection(X11ONLY (XXdisplay) GXMenu, lpane, 0, line_list[panes][selidx], TRUE)
        !           272:              == XM_FAILURE)
        !           273:            {
        !           274:              XMenuDestroy(X11ONLY (XXdisplay) GXMenu);
        !           275:              /* free(datap); */
        !           276:              *error = "Can't add selection to menu";
        !           277:              /* error ("Can't add selection to menu"); */
        !           278:              return(0);
        !           279:            }
        !           280:        }
        !           281:     }
        !           282:   /* all set and ready to fly */
        !           283:   XMenuRecompute(X11ONLY (XXdisplay) GXMenu);
        !           284: #ifdef X11
        !           285:   XXscreen = DefaultScreen(XXdisplay);
        !           286:   dispwidth = DisplayWidth(XXdisplay, XXscreen);
        !           287:   dispheight = DisplayHeight(XXdisplay, XXscreen);
        !           288: #else
        !           289:   dispwidth = DisplayWidth();
        !           290:   dispheight = DisplayHeight();
        !           291: #endif
        !           292:   startx = min(startx, dispwidth);
        !           293:   starty = min(starty, dispheight);
        !           294:   startx = max(startx, 1);
        !           295:   starty = max(starty, 1);
        !           296:   XMenuLocate(X11ONLY (XXdisplay) GXMenu, 0, 0, startx, starty, &ulx, &uly, &width, &height);
        !           297:   if (ulx+width > dispwidth)
        !           298:     {
        !           299:       startx -= (ulx + width) - dispwidth;
        !           300:       ulx = dispwidth - width;
        !           301:     }
        !           302:   if (uly+height > dispheight)
        !           303:     {
        !           304:       starty -= (uly + height) - dispheight;
        !           305:       uly = dispheight - height;
        !           306:     }
        !           307:   if (ulx < 0) startx -= ulx;
        !           308:   if (uly < 0) starty -= uly;
        !           309:     
        !           310:   XMenuSetFreeze(GXMenu, TRUE);
        !           311:   panes = selidx = 0;
        !           312:   
        !           313:   status = XMenuActivate(X11ONLY (XXdisplay) GXMenu, &panes, &selidx,
        !           314:                         startx, starty, ButtonRelease, &datap);
        !           315:   switch (status ) {
        !           316:   case XM_SUCCESS:
        !           317: #ifdef XDEBUG
        !           318:     fprintf (stderr, "pane= %d line = %d\n", panes, selidx);
        !           319: #endif
        !           320:     entry = item_list[panes][selidx];
        !           321:     break;
        !           322:   case XM_FAILURE:
        !           323:     /*free (datap_save); */
        !           324:     XMenuDestroy(X11ONLY (XXdisplay) GXMenu);
        !           325:     *error = "Can't activate menu";
        !           326:     /* error("Can't activate menu"); */
        !           327:   case XM_IA_SELECT:
        !           328:   case XM_NO_SELECT:
        !           329:     entry = Qnil;
        !           330:     break;
        !           331:   }
        !           332:   XMenuDestroy(X11ONLY (XXdisplay) GXMenu);
        !           333:   /*free(datap_save);*/
        !           334:   return(entry);
        !           335: }
        !           336: 
        !           337: syms_of_xmenu ()
        !           338: {
        !           339:   defsubr (&Sx_popup_menu);
        !           340: }
        !           341: 
        !           342: list_of_panes (vector, panes, names, items, menu)
        !           343:      Lisp_Object ***vector;    /* RETURN all menu objects */
        !           344:      char ***panes;            /* RETURN pane names */
        !           345:      char ****names;           /* RETURN all line names */
        !           346:      int **items;              /* RETURN number of items per pane */
        !           347:      Lisp_Object menu;
        !           348: {
        !           349:   Lisp_Object tail, item, item1;
        !           350:   int i;
        !           351:   
        !           352:   if (XTYPE (menu) != Lisp_Cons) menu = wrong_type_argument(Qlistp, item);
        !           353:   
        !           354:   i= XFASTINT(Flength(menu,1));
        !           355: 
        !           356:   *vector = (Lisp_Object **) xmalloc(i * sizeof (Lisp_Object *));
        !           357:   *panes = (char **) xmalloc(i * sizeof (char *));
        !           358:   *items = (int *) xmalloc(i * sizeof (int));
        !           359:   *names = (char ***) xmalloc(i * sizeof (char **));
        !           360: 
        !           361:   for (i=0,tail = menu; !NULL (tail); tail = Fcdr (tail), i++)
        !           362:     {
        !           363:        item = Fcdr(Fcar(tail));
        !           364:        if (XTYPE (item) != Lisp_Cons) (void) wrong_type_argument(Qlistp, item);
        !           365: #ifdef XDEBUG
        !           366:        fprintf (stderr, "list_of_panes check tail, i=%d\n", i);
        !           367: #endif
        !           368:        item1 = Fcar(Fcar(tail));
        !           369:        CHECK_STRING (item1, 1);
        !           370: #ifdef XDEBUG
        !           371:        fprintf (stderr, "list_of_panes check pane, i=%d%s\n", i,
        !           372:                XSTRING(item1)->data);
        !           373: #endif
        !           374:        (*panes)[i] = (char *) XSTRING(item1)->data;
        !           375:        (*items)[i] = list_of_items ((*vector)+i, (*names)+i, item);
        !           376:        /* (*panes)[i] = (char *) xmalloc((XSTRING(item1)->size)+1);
        !           377:          bcopy (XSTRING (item1)->data, (*panes)[i], XSTRING(item1)->size + 1)
        !           378:          ; */
        !           379:     }
        !           380:   return i;
        !           381: }
        !           382:      
        !           383: 
        !           384: list_of_items (vector,names,pane)  /* get list from emacs and put to vector */
        !           385:      Lisp_Object **vector;     /* RETURN menu "objects" */
        !           386:      char ***names;            /* RETURN line names */
        !           387:      Lisp_Object pane;
        !           388: {
        !           389:   Lisp_Object tail, item, item1;
        !           390:   int i;
        !           391: 
        !           392:   if (XTYPE (pane) != Lisp_Cons) pane = wrong_type_argument(Qlistp, item);
        !           393:   
        !           394:   i= XFASTINT(Flength(pane,1));
        !           395: 
        !           396:   *vector = (Lisp_Object *) xmalloc(i * sizeof (Lisp_Object));
        !           397:   *names = (char **) xmalloc(i * sizeof (char *));
        !           398: 
        !           399:   for (i=0,tail = pane; !NULL (tail); tail = Fcdr (tail), i++)
        !           400:     {
        !           401:        item = Fcar(tail);
        !           402:        if (XTYPE (item) != Lisp_Cons) (void) wrong_type_argument(Qlistp, item);
        !           403: #ifdef XDEBUG
        !           404:        fprintf (stderr, "list_of_items check tail, i=%d\n", i);
        !           405: #endif
        !           406:        (*vector)[i] =  Fcdr (item);
        !           407:        item1 = Fcar(item);
        !           408:        CHECK_STRING (item1, 1);
        !           409: #ifdef XDEBUG
        !           410:        fprintf (stderr, "list_of_items check item, i=%d%s\n", i,
        !           411:                XSTRING(item1)->data);
        !           412: #endif
        !           413:        (*names)[i] = (char *) XSTRING(item1)->data;
        !           414:        /* (*names)[i] = (char *) xmalloc((XSTRING(item1)->size)+1);
        !           415:        bcopy (XSTRING (item1)->data, (*names)[i], XSTRING(item1)->size + 1); */
        !           416:     }
        !           417:   return i;
        !           418: }
        !           419: 

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.