external/bsd/nvi/dist/motif_l/m_search.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_search.c,v 8.14 2003/11/05 17:10:00 skimo Exp  (Berkeley) Date: 2003/11/05 17:10:00 ";
  14 #endif /* not lint */
  15
  16 #include <sys/queue.h>
  17
  18 /* context */
  19 #include <X11/X.h>
  20 #include <X11/Intrinsic.h>
  21 #include <Xm/DialogS.h>
  22 #include <Xm/Form.h>
  23 #include <Xm/Label.h>
  24 #include <Xm/PushBG.h>
  25 #include <Xm/TextF.h>
  26 #include <Xm/ToggleB.h>
  27 #include <Xm/RowColumn.h>
  28
  29 #include <bitstring.h>
  30 #include <stdio.h>
  31 #include <stdlib.h>
  32
  33 #undef LOCK_SUCCESS
  34 #include "../common/common.h"
  35 #include "../ipc/ip.h"
  36 #include "m_motif.h"
  37
  38 extern int vi_ofd;
  39
  40 \f
  41 /* types */
  42
  43 typedef struct sds {
  44     struct sds  *next;
  45     Widget      shell;
  46 } save_dialog;
  47
  48 static  save_dialog     *dialogs = NULL;
  49
  50 typedef struct  {
  51     String      name;
  52     void        (*cb)();
  53 } ButtonData;
  54
  55 \f
  56 /* globals and constants */
  57
  58 static  String  PatternWidget = "text";
  59 static  String  pattern = NULL;
  60
  61 static optData  search_toggles[] = {
  62         { optToggle,    "extended",     NULL,   VI_SEARCH_EXT   },
  63         { optToggle,    "iclower",      NULL,   VI_SEARCH_ICL   },
  64         { optToggle,    "ignorecase",   NULL,   VI_SEARCH_IC    },
  65         { optToggle,    "literal",      NULL,   VI_SEARCH_LIT   },
  66         { optToggle,    "searchincr",   NULL,   VI_SEARCH_INCR  },
  67         { optToggle,    "wrapscan",     NULL,   VI_SEARCH_WR    },
  68         { optTerminator,                },
  69 };
  70
  71 static void done_func __P((Widget));
  72 static void next_func __P((Widget));
  73 static void prev_func __P((Widget));
  74 static void search __P((Widget, int));
  75
  76 static  ButtonData button_data[] = {
  77     { "Next",           next_func       },
  78     { "Previous",       prev_func       },
  79     { "Cancel",         done_func       }       /* always last */
  80 };
  81
  82 \f
  83 /* Xt utilities */
  84
  85 #if defined(__STDC__)
  86 static  Widget  get_child_widget( Widget parent, String name )
  87 #else
  88 static  Widget  get_child_widget( parent, name )
  89         Widget  parent;
  90         String  name;
  91 #endif
  92 {
  93     char buffer[1024];
  94
  95     strcpy( buffer, "*" );
  96     strcat( buffer, name );
  97     return XtNameToWidget( parent, buffer );
  98 }
  99
 100 \f
 101 /* sync the global state */
 102
 103 #if defined(__STDC__)
 104 static  void    get_state( Widget w )
 105 #else
 106 static  void    get_state( w )
 107         Widget  w;
 108 #endif
 109 {
 110 #if defined(SelfTest)
 111     int         i;
 112 #endif
 113     Widget      shell = w;
 114
 115     /* get all the data from the root of the widget tree */
 116     while ( ! XtIsShell(shell) ) shell = XtParent(shell);
 117
 118 #if defined(SelfTest)
 119     /* which flags? */
 120     for (i=0; i<XtNumber(toggle_data); i++) {
 121         if (( w = get_child_widget( shell, toggle_data[i].name )) != NULL ) {
 122             XtVaGetValues( w, XmNset, &toggle_data[i].value, 0 );
 123         }
 124     }
 125 #endif
 126
 127     /* what's the pattern? */
 128     if (( w = get_child_widget( shell, PatternWidget )) != NULL ) {
 129         if ( pattern != NULL ) XtFree( pattern );
 130         pattern = XmTextFieldGetString( w );
 131     }
 132 }
 133
 134 \f
 135 /* Translate the user's actions into nvi commands */
 136 /*
 137  * next_func --
 138  *      Action for next button.
 139  */
 140 static void
 141 next_func(Widget w)
 142 {
 143         search(w, 0);
 144 }
 145
 146 /*
 147  * prev_func --
 148  *      Action for previous button.
 149  */
 150 static void
 151 prev_func(Widget w)
 152 {
 153         search(w, VI_SEARCH_REV);
 154 }
 155
 156 /*
 157  * search --
 158  *      Perform the search.
 159  */
 160 static void
 161 search(Widget w, int flags)
 162 {
 163         IP_BUF ipb;
 164         optData *opt;
 165         Widget shell;
 166
 167         shell = w;
 168         while ( ! XtIsShell(shell) ) shell = XtParent(shell);
 169
 170         /* Get current data from the root of the widget tree?
 171          * Do it if we are a child of a dialog shell (assume we
 172          * are a 'Find' dialog).  Otherwise don't (we are the child
 173          * of a menu and being invoked via accelerator)
 174          */
 175         if (XmIsDialogShell(shell))
 176                 get_state(w);
 177
 178         /* no pattern? probably, we haven't posted a search dialog yet.
 179          * there ought to be a better thing to do here.
 180          */
 181         if ( pattern == NULL ) {
 182             vi_info_message( w, "No previous string specified" );
 183             return;
 184         }
 185
 186         ipb.str1 = pattern;
 187         ipb.len1 = strlen(pattern);
 188
 189         /* Initialize the search flags based on the buttons. */
 190         ipb.val1 = flags;
 191         for (opt = search_toggles; opt->kind != optTerminator; ++opt)
 192                 if (opt->value != NULL)
 193                         ipb.val1 |= opt->flags;
 194
 195         ipb.code = VI_C_SEARCH;
 196         vi_send(vi_ofd, "a1", &ipb);
 197 }
 198
 199 #if defined(__STDC__)
 200 static  void    done_func( Widget w )
 201 #else
 202 static  void    done_func( w )
 203         Widget  w;
 204 #endif
 205 {
 206     save_dialog *ptr;
 207
 208 #if defined(SelfTest)
 209     puts( XtName(w) );
 210 #endif
 211
 212     while ( ! XtIsShell(w) ) w = XtParent(w);
 213     XtPopdown( w );
 214
 215     /* save it for later */
 216     ptr         = (save_dialog *) malloc( sizeof(save_dialog) );
 217     ptr->next   = dialogs;
 218     ptr->shell  = w;
 219     dialogs     = ptr;
 220 }
 221
 222 \f
 223 /* create a set of push buttons */
 224
 225 #define SpacingRatio    4       /* 3:1 button to spaces */
 226
 227 #if defined(__STDC__)
 228 static  Widget  create_push_buttons( Widget parent,
 229                                      ButtonData *data,
 230                                      int count
 231                                     )
 232 #else
 233 static  Widget  create_push_buttons( parent, data, count )
 234     Widget      parent;
 235     ButtonData  *data;
 236     int         count;
 237 #endif
 238 {
 239     Widget      w, form;
 240     int         pos = 1, base;
 241
 242     base = SpacingRatio*count + 1;
 243     form = XtVaCreateManagedWidget( "buttons",
 244                                     xmFormWidgetClass,
 245                                     parent,
 246                                     XmNleftAttachment,  XmATTACH_FORM,
 247                                     XmNrightAttachment, XmATTACH_FORM,
 248                                     XmNfractionBase,    base,
 249                                     XmNshadowType,      XmSHADOW_ETCHED_IN,
 250                                     XmNshadowThickness, 2,
 251                                     XmNverticalSpacing, 4,
 252                                     0
 253                                     );
 254
 255     while ( count-- > 0 ) {
 256         w = XtVaCreateManagedWidget(data->name,
 257                                     xmPushButtonGadgetClass,
 258                                     form,
 259                                     XmNtopAttachment,   XmATTACH_FORM,
 260                                     XmNbottomAttachment,XmATTACH_FORM,
 261                                     XmNleftAttachment,  XmATTACH_POSITION,
 262                                     XmNleftPosition,    pos,
 263                                     XmNshowAsDefault,   False,
 264                                     XmNrightAttachment, XmATTACH_POSITION,
 265                                     XmNrightPosition,   pos+SpacingRatio-1,
 266                                     0
 267                                     );
 268         XtAddCallback( w, XmNactivateCallback, data->cb, 0 );
 269         pos += SpacingRatio;
 270         data++;
 271     }
 272
 273     /* last button is 'cancel' */
 274     XtVaSetValues( XtParent(form), XmNcancelButton, w, 0 );
 275
 276     return form;
 277 }
 278
 279 \f
 280 /* create a set of check boxes */
 281
 282 #if defined(SelfTest)
 283
 284 #if defined(__STDC__)
 285 static  Widget  create_check_boxes( Widget parent,
 286                                     ToggleData *toggles,
 287                                     int count
 288                                     )
 289 #else
 290 static  Widget  create_check_boxes( parent, toggles, count )
 291         Widget  parent;
 292         ToggleData *toggles;
 293         int     count;
 294 #endif
 295 {
 296     Widget      form;
 297     int         pos = 1, base;
 298
 299     base = SpacingRatio*count +1;
 300     form = XtVaCreateManagedWidget( "toggles",
 301                                     xmFormWidgetClass,
 302                                     parent,
 303                                     XmNleftAttachment,  XmATTACH_FORM,
 304                                     XmNrightAttachment, XmATTACH_FORM,
 305                                     XmNfractionBase,    base,
 306                                     XmNverticalSpacing, 4,
 307                                     0
 308                                     );
 309
 310     while ( count-- > 0 ) {
 311         XtVaCreateManagedWidget(toggles->name,
 312                                 xmToggleButtonWidgetClass,
 313                                 form,
 314                                 XmNtopAttachment,       XmATTACH_FORM,
 315                                 XmNbottomAttachment,    XmATTACH_FORM,
 316                                 XmNleftAttachment,      XmATTACH_POSITION,
 317                                 XmNleftPosition,        pos,
 318                                 XmNrightAttachment,     XmATTACH_POSITION,
 319                                 XmNrightPosition,       pos+SpacingRatio-1,
 320                                 0
 321                                 );
 322         pos += SpacingRatio;
 323         ++toggles;
 324     }
 325
 326     return form;
 327 }
 328
 329 #endif
 330
 331 \f
 332 /* Routines to handle the text field widget */
 333
 334 /* when the user hits 'CR' in a text widget, fire the default pushbutton */
 335 #if defined(__STDC__)
 336 static  void    text_cr( Widget w, void *ptr, void *ptr2 )
 337 #else
 338 static  void    text_cr( w, ptr, ptr2 )
 339         Widget  w;
 340         void    *ptr;
 341         void    *ptr2;
 342 #endif
 343 {
 344     next_func( w );
 345 }
 346
 347
 348 #ifdef notdef
 349 /*
 350  * when the user hits any other character, if we are doing incremental
 351  * search, send the updated string to nvi
 352  *
 353  * XXX
 354  * I don't currently see any way to make this work -- incremental search
 355  * is going to be really nasty.  What makes it worse is that the dialog
 356  * box almost certainly obscured a chunk of the text file, so there's no
 357  * way to use it even if it works.
 358  */
 359 #if defined(__STDC__)
 360 static  void    value_changed( Widget w, void *ptr, void *ptr2 )
 361 #else
 362 static  void    value_changed( w, ptr, ptr2 )
 363         Widget  w;
 364         void    *ptr;
 365         void    *ptr2;
 366 #endif
 367 {
 368     /* get all the data from the root of the widget tree */
 369     get_state( w );
 370
 371     /* send it along? */
 372 #if defined(SelfTest)
 373     if ( incremental_search ) send_command( w );
 374 #else
 375     if ( __vi_incremental_search() ) send_command( w );
 376 #endif
 377 }
 378 #endif /* notdef */
 379
 380 \f
 381 /* Draw and display a dialog the describes nvi search capability */
 382
 383 #if defined(__STDC__)
 384 static  Widget  create_search_dialog( Widget parent, String title )
 385 #else
 386 static  Widget  create_search_dialog( parent, title )
 387         Widget  parent;
 388         String  title;
 389 #endif
 390 {
 391     Widget      box, form, label, text, checks, buttons, form2;
 392     save_dialog *ptr;
 393
 394     /* use an existing one? */
 395     if ( dialogs != NULL ) {
 396         box = dialogs->shell;
 397         ptr = dialogs->next;
 398         free( dialogs );
 399         dialogs = ptr;
 400         return box;
 401     }
 402
 403     box = XtVaCreatePopupShell( title,
 404                                 xmDialogShellWidgetClass,
 405                                 parent,
 406                                 XmNtitle,               title,
 407                                 XmNallowShellResize,    False,
 408                                 0
 409                                 );
 410
 411     form = XtVaCreateWidget( "form",
 412                                 xmFormWidgetClass,
 413                                 box,
 414                                 XmNverticalSpacing,     4,
 415                                 XmNhorizontalSpacing,   4,
 416                                 0
 417                                 );
 418
 419     form2 = XtVaCreateManagedWidget( "form",
 420                                 xmFormWidgetClass,
 421                                 form,
 422                                 XmNtopAttachment,       XmATTACH_FORM,
 423                                 XmNleftAttachment,      XmATTACH_FORM,
 424                                 XmNrightAttachment,     XmATTACH_FORM,
 425                                 0
 426                                 );
 427
 428     label = XtVaCreateManagedWidget( "Pattern:",
 429                                     xmLabelWidgetClass,
 430                                     form2,
 431                                     XmNtopAttachment,   XmATTACH_FORM,
 432                                     XmNbottomAttachment,XmATTACH_FORM,
 433                                     XmNleftAttachment,  XmATTACH_FORM,
 434                                     0
 435                                     );
 436
 437     text = XtVaCreateManagedWidget( PatternWidget,
 438                                     xmTextFieldWidgetClass,
 439                                     form2,
 440                                     XmNtopAttachment,   XmATTACH_FORM,
 441                                     XmNbottomAttachment,XmATTACH_FORM,
 442                                     XmNleftAttachment,  XmATTACH_WIDGET,
 443                                     XmNleftWidget,      label,
 444                                     XmNrightAttachment, XmATTACH_FORM,
 445                                     0
 446                                     );
 447 #ifdef notdef
 448     XtAddCallback( text, XmNvalueChangedCallback, value_changed, 0 );
 449 #endif
 450     XtAddCallback( text, XmNactivateCallback, text_cr, 0 );
 451
 452     buttons = create_push_buttons( form, button_data, XtNumber(button_data) );
 453     XtVaSetValues( buttons,
 454                    XmNbottomAttachment, XmATTACH_FORM,
 455                    0
 456                    );
 457
 458 #if defined(SelfTest)
 459     checks = create_check_boxes( form, toggle_data, XtNumber(toggle_data) );
 460 #else
 461     checks = (Widget) __vi_create_search_toggles( form, search_toggles );
 462 #endif
 463     XtVaSetValues( checks,
 464                    XmNtopAttachment,    XmATTACH_WIDGET,
 465                    XmNtopWidget,        form2,
 466                    XmNbottomAttachment, XmATTACH_WIDGET,
 467                    XmNbottomWidget,     buttons,
 468                    0
 469                    );
 470
 471     XtManageChild( form );
 472     return box;
 473 }
 474
 475 \f
 476 /* Module interface to the outside world
 477  *
 478  *      xip_show_search_dialog( parent, title )
 479  *      pops up a search dialog
 480  *
 481  *      xip_next_search()
 482  *      simulates a 'next' assuming that a search has been done
 483  */
 484
 485 #if defined(__STDC__)
 486 void    __vi_show_search_dialog( Widget parent, String title )
 487 #else
 488 void    __vi_show_search_dialog( parent, data, cbs )
 489 Widget  parent;
 490 String  title;
 491 #endif
 492 {
 493     Widget      db = create_search_dialog( parent, title );
 494     Dimension   height;
 495
 496     /* we can handle getting taller and wider or narrower, but not shorter */
 497     XtVaGetValues( db, XmNheight, &height, 0 );
 498     XtVaSetValues( db, XmNmaxHeight, height, XmNminHeight, height, 0 );
 499
 500     /* post the dialog */
 501     XtPopup( db, XtGrabNone );
 502
 503     /* request initial focus to the text widget */
 504     XmProcessTraversal( get_child_widget( db, PatternWidget ),
 505                         XmTRAVERSE_CURRENT
 506                         );
 507 }
 508
 509
 510 /*
 511  * __vi_search --
 512  *
 513  * PUBLIC: void __vi_search __P((Widget));
 514  */
 515 void
 516 __vi_search(Widget w)
 517 {
 518     next_func( w );
 519 }
 520
 521 \f
 522 #if defined(SelfTest)
 523
 524 #if defined(__STDC__)
 525 static void show_search( Widget w, XtPointer data, XtPointer cbs )
 526 #else
 527 static void show_search( w, data, cbs )
 528 Widget w;
 529 XtPointer       data;
 530 XtPointer       cbs;
 531 #endif
 532 {
 533     __vi_show_search_dialog( data, "Search" );
 534 }
 535
 536 main( int argc, char *argv[] )
 537 {
 538     XtAppContext        ctx;
 539     Widget              top_level, rc, button;
 540     extern              exit();
 541
 542     /* create a top-level shell for the window manager */
 543     top_level = XtVaAppInitialize( &ctx,
 544                                    argv[0],
 545                                    NULL, 0,     /* options */
 546                                    (ArgcType) &argc,
 547                                    argv,        /* might get modified */
 548                                    NULL,
 549                                    NULL
 550                                    );
 551
 552     rc = XtVaCreateManagedWidget( "rc",
 553                                   xmRowColumnWidgetClass,
 554                                   top_level,
 555                                   0
 556                                   );
 557
 558     button = XtVaCreateManagedWidget( "Pop up search dialog",
 559                                       xmPushButtonGadgetClass,
 560                                       rc,
 561                                       0
 562                                       );
 563     XtAddCallback( button, XmNactivateCallback, show_search, rc );
 564
 565     button = XtVaCreateManagedWidget( "Quit",
 566                                       xmPushButtonGadgetClass,
 567                                       rc,
 568                                       0
 569                                       );
 570     XtAddCallback( button, XmNactivateCallback, exit, 0 );
 571
 572     XtRealizeWidget(top_level);
 573     XtAppMainLoop(ctx);
 574 }
 575 #endif