motif_l/m_menu.c

   1 /*-
   2  * Copyright (c) 1996
   3  *      Rob Zimmermann.  All rights reserved.
   4  * Copyright (c) 1996
   5  *      Keith Bostic.  All rights reserved.
   6  *
   7  * See the LICENSE file for redistribution information.
   8  */
   9
  10 #include "config.h"
  11
  12 #ifndef lint
  13 static const char sccsid[] = "$Id: m_menu.c,v 8.19 1996/12/11 20:58:23 bostic Exp $ (Berkeley) $Date: 1996/12/11 20:58:23 $";
  14 #endif /* not lint */
  15
  16 #include <sys/queue.h>
  17
  18 #include <X11/Intrinsic.h>
  19 #include <X11/StringDefs.h>
  20 #include <Xm/PushB.h>
  21 #include <Xm/CascadeB.h>
  22 #include <Xm/RowColumn.h>
  23 #include <Xm/Separator.h>
  24 #include <Xm/FileSB.h>
  25 #include <Xm/SelectioB.h>
  26
  27 #include <bitstring.h>
  28 #include <stdio.h>
  29
  30 #include "../common/common.h"
  31 #include "../ip/ip.h"
  32 #include "ipc_extern.h"
  33
  34 /* save this for creation of children */
  35 static  Widget  main_widget = NULL;
  36
  37 /* This module defines the menu structure for vi.  Each menu
  38  * item has an action routine associated with it.  For the most
  39  * part, those actions will simply call __vi_send with vi commands.
  40  * others will pop up file selection dialogs and use them for
  41  * vi commands, and other will have to have special actions.
  42  *
  43  * Future:
  44  *      vi core will have to let us know when to be sensitive
  45  *      change VI_STRING to VI_COMMAND so that menu actions cannot
  46  *              be confusing when in insert mode
  47  *      need VI_CUT, VI_COPY, and VI_PASTE to perform the appropriate
  48  *              operations on the visible text of yank buffer.  VI_COPY
  49  *              is likely a NOP, but it will make users happy
  50  *      add mnemonics
  51  *      add accelerators
  52  *      implement file selection dialog boxes
  53  *      implement string prompt dialog boxes (e.g. for 'find')
  54  *
  55  * Interface:
  56  *      Widget  create_menubar( Widget parent ) creates and returns the
  57  *              X menu structure.  The caller can place this
  58  *              anywhere in the widget heirarchy.
  59  */
  60
  61 #define BufferSize      1024
  62
  63 /*
  64  * __vi_send_command_string --
  65  *      Utility:  Send a menu command to vi
  66  *
  67  * Future:
  68  * Change VI_STRING to VI_COMMAND so that menu actions cannot be confusing
  69  * when in insert mode.
  70  *
  71  * XXX
  72  * THIS SHOULD GO AWAY -- WE SHOULDN'T SEND UNINTERPRETED STRINGS TO THE
  73  * CORE.
  74  *
  75  * PUBLIC: void __vi_send_command_string __P((String));
  76  */
  77 void
  78 __vi_send_command_string(str)
  79 String  str;
  80 {
  81     IP_BUF      ipb;
  82     char        buffer[BufferSize];
  83
  84     /* Future:  Need VI_COMMAND so vi knows this is not text to insert
  85      * At that point, appending a cr/lf will not be necessary.  For now,
  86      * append iff we are a colon or slash command.  Of course, if we are in
  87      * insert mode, all bets are off.
  88      */
  89     strcpy( buffer, str );
  90     switch ( *str ) {
  91         case ':':
  92         case '/':
  93             strcat( buffer, "\n" );
  94             break;
  95     }
  96
  97     ipb.code = VI_STRING;
  98     ipb.str = buffer;
  99     ipb.len = strlen(buffer);
 100     __vi_send("s", &ipb);
 101 }
 102
 103 \f
 104 /* Utility:  beep for unimplemented command */
 105
 106 #if defined(__STDC__)
 107 static  void    send_beep( Widget w )
 108 #else
 109 static  void    send_beep( w )
 110         Widget  w;
 111 #endif
 112 {
 113     XBell( XtDisplay(w), 0 );
 114 }
 115
 116 \f
 117 /*
 118  * __vi_cancel_cb --
 119  *      Utility:  make a dialog box go Modal
 120  *
 121  * PUBLIC: void __vi_cancel_cb __P((Widget, XtPointer, XtPointer));
 122  */
 123 static  Bool    have_answer;
 124 void
 125 __vi_cancel_cb(w, client_data, call_data)
 126         Widget w;
 127         XtPointer client_data, call_data;
 128 {
 129         have_answer = True;
 130 }
 131
 132 void    __vi_modal_dialog( db )
 133 Widget  db;
 134 {
 135     XtAppContext        ctx;
 136
 137     /* post the dialog */
 138     XtManageChild( db );
 139     XtPopup( XtParent(db), XtGrabExclusive );
 140
 141     /* wait for a response */
 142     ctx = XtWidgetToApplicationContext(db);
 143     XtAddGrab( XtParent(db), TRUE, FALSE );
 144     for ( have_answer = False; ! have_answer; )
 145         XtAppProcessEvent( ctx, XtIMAll );
 146
 147     /* done with db */
 148     XtPopdown( XtParent(db) );
 149     XtRemoveGrab( XtParent(db) );
 150 }
 151
 152 \f
 153 /* Utility:  Get a file (using standard File Selection Dialog Box) */
 154
 155 static  String  file_name;
 156
 157
 158 #if defined(__STDC__)
 159 static  void            ok_file_name( Widget w,
 160                                       XtPointer client_data,
 161                                       XtPointer call_data
 162                                       )
 163 #else
 164 static  void            ok_file_name( w, client_data, call_data )
 165         Widget          w;
 166         XtPointer       client_data;
 167         XtPointer       call_data;
 168 #endif
 169 {
 170     XmFileSelectionBoxCallbackStruct    *cbs;
 171
 172     cbs = (XmFileSelectionBoxCallbackStruct *) call_data;
 173     XmStringGetLtoR( cbs->value, XmSTRING_DEFAULT_CHARSET, &file_name );
 174
 175     have_answer = True;
 176 }
 177
 178
 179 #if defined(__STDC__)
 180 static  String  get_file( Widget w, String prompt )
 181 #else
 182 static  String  get_file( w, prompt )
 183         Widget  w;
 184         String  prompt;
 185 #endif
 186 {
 187     /* make it static so we can reuse it */
 188     static      Widget  db;
 189
 190     /* our return parameter */
 191     if ( file_name != NULL ) {
 192         XtFree( file_name );
 193         file_name = NULL;
 194     }
 195
 196     /* create one? */
 197     if ( db == NULL ){
 198         db = XmCreateFileSelectionDialog( main_widget, "file", NULL, 0 );
 199         XtAddCallback( db, XmNokCallback, ok_file_name, NULL );
 200         XtAddCallback( db, XmNcancelCallback, __vi_cancel_cb, NULL );
 201     }
 202
 203     /* use the title as a prompt */
 204     XtVaSetValues( XtParent(db), XmNtitle, prompt, 0 );
 205
 206     /* wait for a response */
 207     __vi_modal_dialog( db );
 208
 209     /* done */
 210     return file_name;
 211 }
 212
 213 \f
 214 /*
 215  * file_command --
 216  *      Get a file name and send it with the command to the core.
 217  */
 218 static void
 219 file_command(w, code, prompt)
 220         Widget  w;
 221         int code;
 222         String prompt;
 223 {
 224         IP_BUF ipb;
 225         char *file;
 226
 227         if ((file = get_file(w, prompt)) != NULL) {
 228                 ipb.code = code;
 229                 ipb.str = file;
 230                 ipb.len = strlen(file);
 231                 __vi_send("s", &ipb);
 232         }
 233 }
 234
 235 \f
 236 /*
 237  * Menu action routines (one per menu entry)
 238  *
 239  * These are in the order in which they appear in the menu structure.
 240  */
 241 static void
 242 ma_edit_file(w, call_data, client_data)
 243         Widget w;
 244         XtPointer call_data, client_data;
 245 {
 246         file_command(w, VI_EDIT, "Edit");
 247 }
 248
 249 static void
 250 ma_split(w, call_data, client_data)
 251         Widget w;
 252         XtPointer call_data, client_data;
 253 {
 254         file_command(w, VI_EDITSPLIT, "Edit");
 255 }
 256
 257 static void
 258 ma_save(w, call_data, client_data)
 259         Widget w;
 260         XtPointer call_data, client_data;
 261 {
 262         IP_BUF ipb;
 263
 264         ipb.code = VI_WRITE;
 265         (void)__vi_send(NULL, &ipb);
 266 }
 267
 268 static void
 269 ma_save_as(w, call_data, client_data)
 270         Widget w;
 271         XtPointer call_data, client_data;
 272 {
 273         file_command(w, VI_WRITEAS, "Save As");
 274 }
 275
 276 static void
 277 ma_wq(w, call_data, client_data)
 278         Widget w;
 279         XtPointer call_data, client_data;
 280 {
 281         IP_BUF ipb;
 282
 283         ipb.code = VI_WQ;
 284         (void)__vi_send(NULL, &ipb);
 285 }
 286
 287 static void
 288 ma_quit(w, call_data, client_data)
 289         Widget w;
 290         XtPointer call_data, client_data;
 291 {
 292         IP_BUF ipb;
 293
 294         ipb.code = VI_QUIT;
 295         (void)__vi_send(NULL, &ipb);
 296 }
 297
 298 static void
 299 ma_undo(w, call_data, client_data)
 300         Widget w;
 301         XtPointer call_data, client_data;
 302 {
 303         IP_BUF ipb;
 304
 305         ipb.code = VI_UNDO;
 306         (void)__vi_send(NULL, &ipb);
 307 }
 308
 309 #if defined(__STDC__)
 310 static void     ma_cut( Widget w,
 311                         XtPointer call_data,
 312                         XtPointer client_data
 313                         )
 314 #else
 315 static  void            ma_cut( w, call_data, client_data )
 316         Widget          w;
 317         XtPointer       call_data;
 318         XtPointer       client_data;
 319 #endif
 320 {
 321     /* future */
 322     send_beep( w );
 323 }
 324
 325
 326 #if defined(__STDC__)
 327 static  void    ma_copy(        Widget w,
 328                                 XtPointer call_data,
 329                                 XtPointer client_data
 330                                 )
 331 #else
 332 static  void            ma_copy( w, call_data, client_data )
 333         Widget          w;
 334         XtPointer       call_data;
 335         XtPointer       client_data;
 336 #endif
 337 {
 338     /* future */
 339     send_beep( w );
 340 }
 341
 342
 343 #if defined(__STDC__)
 344 static  void    ma_paste(       Widget w,
 345                                 XtPointer call_data,
 346                                 XtPointer client_data
 347                                 )
 348 #else
 349 static  void            ma_paste( w, call_data, client_data )
 350         Widget          w;
 351         XtPointer       call_data;
 352         XtPointer       client_data;
 353 #endif
 354 {
 355     /* future */
 356     send_beep( w );
 357 }
 358
 359 static void
 360 ma_find(w, call_data, client_data)
 361         Widget w;
 362         XtPointer call_data, client_data;
 363 {
 364         __vi_show_search_dialog( main_widget, "Find" );
 365 }
 366
 367 static void
 368 ma_find_next(w, call_data, client_data)
 369         Widget w;
 370         XtPointer call_data, client_data;
 371 {
 372         __vi_search();
 373 }
 374
 375 static void
 376 ma_tags(w, call_data, client_data)
 377         Widget w;
 378         XtPointer call_data, client_data;
 379 {
 380         __vi_show_tags_dialog( main_widget, "Tag Stack" );
 381 }
 382
 383 static void
 384 ma_tagpop(w, call_data, client_data)
 385         Widget w;
 386         XtPointer call_data, client_data;
 387 {
 388         __vi_send_command_string( "\024" );
 389 }
 390
 391 static void
 392 ma_tagtop(w, call_data, client_data)
 393         Widget w;
 394         XtPointer call_data, client_data;
 395 {
 396         __vi_send_command_string( ":tagtop" );
 397 }
 398
 399 #if defined(__STDC__)
 400 static void     ma_preferences( Widget w,
 401                                 XtPointer call_data,
 402                                 XtPointer client_data
 403                                 )
 404 #else
 405 static  void            ma_preferences( w, call_data, client_data )
 406         Widget          w;
 407         XtPointer       call_data;
 408         XtPointer       client_data;
 409 #endif
 410 {
 411         __vi_show_options_dialog( main_widget, "Preferences" );
 412 }
 413
 414 \f
 415 /* Menu construction routines */
 416
 417 typedef struct {
 418     String      title;
 419     void        (*action)();
 420     String      accel;          /* for Motif */
 421     String      accel_text;     /* for the user */
 422 } pull_down;
 423
 424 typedef struct {
 425     char        mnemonic;
 426     String      title;
 427     pull_down   *actions;
 428 } menu_bar;
 429
 430 static  pull_down       file_menu[] = {
 431     { "Edit File...",           ma_edit_file,   "Alt<Key>e",    "Alt+E" },
 432     { "",                       NULL,           NULL,   NULL    },
 433     { "Split Window...",        ma_split,       NULL,   NULL    },
 434     { "",                       NULL,           NULL,   NULL    },
 435     { "Save ",                  ma_save,        "Alt<Key>s",    "Alt+S" },
 436     { "Save As...",             ma_save_as,     "Shift Alt<Key>s",      "Shift+Alt+S"   },
 437     { "",                       NULL,           NULL,   NULL    },
 438     { "Write and Quit",         ma_wq,          "Shift Alt<Key>q",      "Shift+Alt+Q"   },
 439     { "Quit",                   ma_quit,        "Alt<Key>q",    "Alt+Q" },
 440     { NULL,                     NULL,           NULL,   NULL    },
 441 };
 442
 443 static  pull_down       edit_menu[] = {
 444     { "Undo",                   ma_undo,        NULL,   NULL    },
 445     { "",                       NULL,           NULL,   NULL    },
 446     { "Cut",                    ma_cut,         "Alt<Key>x",    "Alt+X" },
 447     { "Copy",                   ma_copy,        "Alt<Key>c",    "Alt+C" },
 448     { "Paste",                  ma_paste,       "Alt<Key>v",    "Alt+V" },
 449     { "",                       NULL,           NULL,   NULL    },
 450     { "Find",                   ma_find,        "Alt<Key>f",    "Alt+F" },
 451     { "Find Next",              ma_find_next,   "Alt<Key>g",    "Alt+G" },
 452     { NULL,                     NULL,           NULL,   NULL    },
 453 };
 454
 455 static  pull_down       options_menu[] = {
 456     { "Preferences",            ma_preferences, NULL,   NULL    },
 457     { "Command Mode Maps",      NULL,           NULL,   NULL    },
 458     { "Insert Mode Maps",       NULL,           NULL,   NULL    },
 459     { NULL,                     NULL,           NULL,   NULL    },
 460 };
 461
 462 static  pull_down       tag_menu[] = {
 463     { "Show Tag Stack",         ma_tags,        "Alt<Key>t",    "Alt+T" },
 464     { "",                       NULL,           NULL,   NULL    },
 465     { "Pop Tag",                ma_tagpop,      NULL,   NULL    },
 466     { "Clear Stack",            ma_tagtop,      NULL,   NULL    },
 467     { NULL,                     NULL,           NULL,   NULL    },
 468 };
 469
 470 static  pull_down       help_menu[] = {
 471     { NULL,                     NULL,           NULL,   NULL    },
 472 };
 473
 474 static  menu_bar        main_menu[] = {
 475     { 'F',      "File",         file_menu       },
 476     { 'E',      "Edit",         edit_menu       },
 477     { 'O',      "Options",      options_menu    },
 478     { 'T',      "Tag",          tag_menu        },
 479     { 'H',      "Help",         help_menu       },
 480     { 0,        NULL,           NULL            },
 481 };
 482
 483
 484 #if defined(__STDC__)
 485 static  void    add_entries( Widget parent, pull_down *actions )
 486 #else
 487 static  void            add_entries( parent, actions )
 488         Widget          parent;
 489         pull_down       *actions;
 490 #endif
 491 {
 492     Widget      w;
 493     XmString    str;
 494
 495     for ( ; actions->title != NULL; actions++ ) {
 496
 497         /* a separator? */
 498         if ( *actions->title != '\0' ) {
 499             w = XmCreatePushButton( parent, actions->title, NULL, 0 );
 500             if ( actions->action == NULL )
 501                 XtSetSensitive( w, False );
 502             else
 503                 XtAddCallback(  w,
 504                                 XmNactivateCallback,
 505                                 (XtCallbackProc) actions->action,
 506                                 actions
 507                                 );
 508             if ( actions->accel != NULL ) {
 509                 str = XmStringCreateSimple( actions->accel_text );
 510                 XtVaSetValues(  w,
 511                                 XmNaccelerator,         actions->accel,
 512                                 XmNacceleratorText,     str,
 513                                 0
 514                                 );
 515                 XmStringFree( str );
 516             }
 517         }
 518         else {
 519             w = XmCreateSeparator( parent, "separator", NULL, 0 );
 520         }
 521
 522         XtManageChild( w );
 523
 524     }
 525 }
 526
 527 /*
 528  * vi_create_menubar --
 529  *
 530  * PUBLIC: Widget vi_create_menubar __P((Widget));
 531  */
 532 Widget
 533 vi_create_menubar(parent)
 534         Widget parent;
 535 {
 536     Widget      menu, pull, button;
 537     menu_bar    *ptr;
 538
 539     /* save this for creation of children */
 540     main_widget = parent;
 541
 542     menu = XmCreateMenuBar( parent, "Menu", NULL, 0 );
 543
 544     for ( ptr=main_menu; ptr->title != NULL; ptr++ ) {
 545
 546         pull = XmCreatePulldownMenu( menu, "pull", NULL, 0 );
 547         add_entries( pull, ptr->actions );
 548         button = XmCreateCascadeButton( menu, ptr->title, NULL, 0 );
 549         XtVaSetValues( button, XmNsubMenuId, pull, 0 );
 550
 551         if ( strcmp( ptr->title, "Help" ) == 0 )
 552             XtVaSetValues( menu, XmNmenuHelpWidget, button, 0 );
 553
 554 #if 0
 555         /* These screw up accelerator processing.  Punt for now */
 556         if ( ptr->mnemonic )
 557             XtVaSetValues( button, XmNmnemonic, ptr->mnemonic, 0 );
 558 #endif
 559
 560         XtManageChild( button );
 561     }
 562
 563     return menu;
 564 }