vg_console.h

   1 /* Copyright (C) 2021-2023 Harry Godden (hgn) - All Rights Reserved */
   2
   3 #ifndef VG_CONSOLE_H
   4 #define VG_CONSOLE_H
   5
   6 #ifndef VG_GAME
   7   #define VG_GAME
   8 #endif
   9
  10 #include "vg/vg_imgui.h"
  11 #include "vg/vg_log.h"
  12
  13 #define VG_VAR_F32( NAME, ... ) \
  14    { u32 flags=0x00; __VA_ARGS__ ;\
  15    vg_console_reg_var( #NAME, &NAME, k_var_dtype_f32, flags ); }
  16
  17 #define VG_VAR_I32( NAME, ... ) \
  18    { u32 flags=0x00; __VA_ARGS__ ;\
  19    vg_console_reg_var( #NAME, &NAME, k_var_dtype_i32, flags ); }
  20
  21 #define VG_VAR_PERSISTENT  0x1
  22 #define VG_VAR_CHEAT       0x2
  23 #define VG_VAR_CHEATTOGGLE 0x4
  24
  25 typedef struct vg_var vg_var;
  26 typedef struct vg_cmd vg_cmd;
  27
  28 struct vg_console{
  29         struct vg_var{
  30                 void *data;
  31                 const char *name;
  32
  33                 enum vg_var_dtype{
  34                         k_var_dtype_i32,
  35                         k_var_dtype_u32,
  36                         k_var_dtype_f32
  37                 }
  38                 data_type;
  39       u32 flags;
  40
  41       union{ u32 _u32; f32 _f32; i32 _i32; } defaults;
  42         }
  43         vars[ 128 ];
  44
  45         struct vg_cmd{
  46                 int  (*function)( int argc, char const *argv[] );
  47       void (*poll_suggest)( int argc, char const *argv[] );
  48                 const char *name;
  49         }
  50         functions[ 32 ];
  51
  52    struct {
  53       const char *str;
  54       int len;
  55
  56       u32 lev_score;
  57    }
  58    suggestions[12];
  59    u32 suggestion_count;
  60    int suggestion_select,
  61        suggestion_pastepos,
  62        suggestion_maxlen;
  63
  64    u32 var_count, function_count;
  65
  66         char input[96],
  67         input_copy[96];
  68
  69         char history[32][96];
  70         int history_last, history_pos, history_count;
  71
  72         i32 enabled, cheats;
  73 }
  74 static vg_console;
  75
  76 static void _vg_console_draw( void );
  77 void           _vg_console_println( const char *str );
  78 static int  _vg_console_list( int argc, char const *argv[] );
  79 static void _vg_console_init(void);
  80 static void _vg_console_write_persistent(void);
  81 static void _vg_console_free(void);
  82 static void  vg_execute_console_input( const char *cmd );
  83
  84 /*
  85  * Console interface
  86  */
  87 static void console_history_get( char* buf, int entry_num );
  88 static int _vg_console_enabled(void);
  89 static void console_proc_key( SDL_Keysym ev );
  90
  91 /*
  92  * Implementation
  93  */
  94 static int _vg_console_enabled(void){
  95         return vg_console.enabled;
  96 }
  97
  98 static
  99 void vg_console_reg_var( const char *alias, void *ptr, enum vg_var_dtype type,
 100                          u32 flags )
 101 {
 102    if( vg_console.var_count > vg_list_size(vg_console.vars) )
 103       vg_fatal_error( "Too many vars registered" );
 104
 105    vg_var *var = &vg_console.vars[ vg_console.var_count ++ ];
 106    var->name = alias;
 107    var->data = ptr;
 108    var->data_type = type;
 109    var->flags = flags;
 110
 111    if     ( type == k_var_dtype_f32 ) var->defaults._f32 = *((f32 *)ptr);
 112    else if( type == k_var_dtype_i32 ) var->defaults._i32 = *((i32 *)ptr);
 113    else if( type == k_var_dtype_u32 ) var->defaults._u32 = *((u32 *)ptr);
 114
 115    vg_info( "Console variable '%s' registered\n", alias );
 116 }
 117
 118 static
 119 void vg_console_reg_cmd( const char *alias,
 120                          int (*function)(int argc, const char *argv[]),
 121                          void (*poll_suggest)(int argc, const char *argv[]) )
 122 {
 123    if( vg_console.function_count > vg_list_size(vg_console.functions) )
 124       vg_fatal_error( "Too many functions registered" );
 125
 126    vg_cmd *cmd = &vg_console.functions[ vg_console.function_count ++ ];
 127
 128    cmd->function = function;
 129    cmd->poll_suggest = poll_suggest;
 130    cmd->name = alias;
 131
 132    vg_info( "Console function '%s' registered\n", alias );
 133 }
 134
 135 static int _vg_console_list( int argc, char const *argv[] ){
 136         for( int i=0; i<vg_console.function_count; i ++ ){
 137                 struct vg_cmd *cmd = &vg_console.functions[ i ];
 138                 vg_info( "* %s\n", cmd->name );
 139         }
 140
 141         for( int i=0; i<vg_console.var_count; i ++ ){
 142                 struct vg_var *cv = &vg_console.vars[ i ];
 143                 vg_info( "%s\n", cv->name );
 144         }
 145
 146         return 0;
 147 }
 148
 149 int _test_break( int argc, const char *argv[] ){
 150    vg_fatal_error( "Test crash from main, after loading (console)" );
 151    return 0;
 152 }
 153
 154 int _vg_console_exec( int argc, const char *argv[] ){
 155    if( argc < 1 ) return 0;
 156
 157    char path[256];
 158    strcpy( path, "cfg/" );
 159    strncat( path, argv[0], 250 );
 160
 161         FILE *fp = fopen( path, "r" );
 162         if( fp ){
 163                 char line[256];
 164
 165                 while( fgets( line, sizeof( line ), fp ) ){
 166                         line[ strcspn( line, "\r\n#" ) ] = 0x00;
 167
 168                         if( line[0] != 0x00 ){
 169                                 vg_execute_console_input( line );
 170                         }
 171                 }
 172
 173                 fclose( fp );
 174         }
 175    else{
 176       vg_error( "Could not open '%s'\n", path );
 177    }
 178
 179    return 0;
 180 }
 181
 182 int _ccmd_vg_console_defaults( int argc, const char *argv[] ){
 183         for( int i=0; i<vg_console.var_count; i ++ ){
 184                 struct vg_var *cv = &vg_console.vars[i];
 185
 186       enum vg_var_dtype type = cv->data_type;
 187       void *ptr = cv->data;
 188
 189       if     ( type == k_var_dtype_f32 ) *((f32 *)ptr) = cv->defaults._f32;
 190       else if( type == k_var_dtype_i32 ) *((i32 *)ptr) = cv->defaults._i32;
 191       else if( type == k_var_dtype_u32 ) *((u32 *)ptr) = cv->defaults._u32;
 192         }
 193
 194    return 0;
 195 }
 196
 197 static void _vg_console_init(void){
 198    vg_console_reg_cmd( "list", _vg_console_list, NULL );
 199    vg_console_reg_cmd( "crash", _test_break, NULL );
 200    vg_console_reg_cmd( "exec", _vg_console_exec, NULL );
 201    vg_console_reg_cmd( "defaults", _ccmd_vg_console_defaults, NULL );
 202    vg_console_reg_var( "cheats", &vg_console.cheats, k_var_dtype_i32,
 203 #ifdef VG_DEVWINDOW
 204                        VG_VAR_PERSISTENT
 205 #else
 206                        0
 207 #endif
 208                        );
 209 }
 210
 211 static void vg_console_load_autos(void){
 212    _vg_console_exec( 1, (const char *[]){ "auto.conf" } );
 213 }
 214
 215 static void _vg_console_write_persistent(void){
 216         FILE *fp = fopen( "cfg/auto.conf", "w" );
 217
 218    if( !fp ){
 219       vg_error( "Cannot open cfg/auto.conf\n" );
 220       return;
 221    }
 222
 223         for( int i=0; i<vg_console.var_count; i ++ ){
 224                 struct vg_var *cv = &vg_console.vars[i];
 225
 226                 if( cv->flags & VG_VAR_PERSISTENT ){
 227                         switch( cv->data_type ){
 228                                 case k_var_dtype_i32:
 229                                         fprintf( fp, "%s %d\n", cv->name, *(i32 *)(cv->data) );
 230                                 break;
 231                                 case k_var_dtype_u32:
 232                                         fprintf( fp, "%s %u\n", cv->name, *(u32 *)(cv->data) );
 233                                 break;
 234                                 case k_var_dtype_f32:
 235                                         fprintf( fp, "%s %.5f\n", cv->name, *(float *)(cv->data ) );
 236                                 break;
 237                         }
 238                 }
 239         }
 240
 241         fclose( fp );
 242 }
 243
 244 static void _vg_console_free(void)
 245 {
 246         _vg_console_write_persistent();
 247 }
 248
 249 /*
 250  * splits src into tokens and fills out args as pointers to those tokens
 251  * returns number of tokens
 252  * dst must be as long as src
 253  */
 254 static int vg_console_tokenize( const char *src, char *dst,
 255                                    const char *args[8] )
 256 {
 257         int arg_count = 0,
 258        in_token = 0;
 259
 260         for( int i=0;; i ++ ){
 261                 if( src[i] ){
 262                         if( src[i] == ' ' || src[i] == '\t' ){
 263             if( in_token )
 264                dst[i] = '\0';
 265
 266                                 in_token = 0;
 267
 268                                 if( arg_count == 8 )
 269                                         break;
 270                         }
 271                         else{
 272                                 dst[i] = src[i];
 273
 274                                 if( !in_token ){
 275                                         args[ arg_count ++ ] = &dst[i];
 276                                         in_token = 1;
 277                                 }
 278                         }
 279                 }
 280                 else{
 281                         dst[i] = '\0';
 282                         break;
 283                 }
 284         }
 285
 286    return arg_count;
 287 }
 288
 289 static vg_var *vg_console_match_var( const char *kw )
 290 {
 291         for( int i=0; i<vg_console.var_count; i ++ ){
 292                 struct vg_var *cv = &vg_console.vars[ i ];
 293                 if( !strcmp( cv->name, kw ) ){
 294          return cv;
 295       }
 296    }
 297
 298    return NULL;
 299 }
 300
 301 static vg_cmd *vg_console_match_cmd( const char *kw )
 302 {
 303         for( int i=0; i<vg_console.function_count; i ++ ){
 304                 struct vg_cmd *cmd = &vg_console.functions[ i ];
 305                 if( !strcmp( cmd->name, kw ) ){
 306          return cmd;
 307       }
 308    }
 309
 310    return NULL;
 311 }
 312
 313 static void vg_execute_console_input( const char *cmd )
 314 {
 315         char temp[512];
 316         char const *args[8];
 317         int arg_count = vg_console_tokenize( cmd, temp, args );
 318
 319         if( arg_count == 0 )
 320                 return;
 321
 322    vg_var *cv = vg_console_match_var( args[0] );
 323    vg_cmd *fn = vg_console_match_cmd( args[0] );
 324
 325    assert( !(cv && fn) );
 326
 327    if( cv ){
 328       /* Cvar Matched, try get value */
 329       if( arg_count >= 2 ){
 330          if( cv->flags & VG_VAR_CHEAT ){
 331             if( !vg_console.cheats ){
 332                vg_error( "variable is cheat protected\n" );
 333                return;
 334             }
 335          }
 336
 337          if( (cv->data_type == k_var_dtype_u32) ||
 338              (cv->data_type == k_var_dtype_i32) )
 339          {
 340             int *ptr = cv->data;
 341             *ptr = atoi( args[1] );
 342
 343             if( cv->flags & VG_VAR_CHEATTOGGLE ){
 344                if( *ptr ){
 345                   _ccmd_vg_console_defaults( 0, NULL );
 346                }
 347             }
 348          }
 349          else if( cv->data_type == k_var_dtype_f32 ){
 350             float *ptr = cv->data;
 351             *ptr = atof( args[1] );
 352          }
 353       }
 354       else{
 355          if( cv->data_type == k_var_dtype_i32 )
 356             vg_info( "= %d\n", *((int *)cv->data) );
 357          else if( cv->data_type == k_var_dtype_u32 )
 358             vg_info( "= %u\n", *((u32 *)cv->data) );
 359          else if( cv->data_type == k_var_dtype_f32 )
 360             vg_info( "= %.4f\n", *((float *)cv->data) );
 361       }
 362
 363       return;
 364         }
 365    else if( fn ){
 366       fn->function( arg_count-1, args+1 );
 367       return;
 368    }
 369
 370         vg_error( "No command/var named '%s'. Use 'list' to view all\n", args[0] );
 371 }
 372
 373 u32 str_lev_distance( const char *s1, const char *s2 ){
 374    u32 m = strlen( s1 ),
 375        n = strlen( s2 );
 376
 377    if( m==0 ) return n;
 378    if( n==0 ) return m;
 379
 380    assert( n+1 <= 256 );
 381
 382    u32 costs[ 256 ];
 383
 384    for( u32 k=0; k<=n; k++ )
 385       costs[k] = k;
 386
 387    u32 i = 0;
 388    for( u32 i=0; i<m; i++ ){
 389       costs[0] = i+1;
 390
 391       u32 corner = i;
 392
 393       for( u32 j=0; j<n; j++ ){
 394          u32 upper = costs[j+1];
 395
 396          if( s1[i] == s2[j] )
 397             costs[ j+1 ] = corner;
 398          else{
 399             u32 t = (upper < corner)? upper: corner;
 400             costs[j+1] = ((costs[j] < t)? costs[j]: t) + 1;
 401          }
 402
 403          corner = upper;
 404       }
 405    }
 406
 407    return costs[n];
 408 }
 409
 410 u32 str_lcs( const char *s1, const char *s2 ){
 411    u32 m = VG_MIN( 31, strlen( s1 ) ),
 412        n = VG_MIN( 31, strlen( s2 ) );
 413
 414    int suff[32][32],
 415        result = 0;
 416
 417    for( int i=0; i<=m; i++ ){
 418       for( int j=0; j<=n; j++ ){
 419          if( i == 0 || j == 0 )
 420             suff[i][j] = 0;
 421          else if( s1[i-1] == s2[j-1] ){
 422             suff[i][j] = suff[i-1][j-1] + 1;
 423             result = VG_MAX( result, suff[i][j] );
 424          }
 425          else
 426             suff[i][j] = 0;
 427       }
 428    }
 429
 430    return result;
 431 }
 432
 433 /* str must not fuckoff ever! */
 434 static void console_suggest_score_text( const char *str, const char *input,
 435                                            int minscore )
 436 {
 437    /* filter duplicates */
 438    for( int i=0; i<vg_console.suggestion_count; i++ )
 439       if( !strcmp( vg_console.suggestions[i].str, str ) )
 440          return;
 441
 442    /* calc score */
 443    u32 score = str_lcs( str, input );
 444
 445    if( score < minscore )
 446       return;
 447
 448    int best_pos = vg_console.suggestion_count;
 449    for( int j=best_pos-1; j>=0; j -- )
 450       if( score > vg_console.suggestions[j].lev_score )
 451          best_pos = j;
 452
 453    /* insert if good score */
 454    if( best_pos < vg_list_size( vg_console.suggestions ) ){
 455       int start = VG_MIN( vg_console.suggestion_count,
 456                           vg_list_size( vg_console.suggestions )-1 );
 457       for( int j=start; j>best_pos; j -- )
 458          vg_console.suggestions[j] = vg_console.suggestions[j-1];
 459
 460       vg_console.suggestions[ best_pos ].str = str;
 461       vg_console.suggestions[ best_pos ].len = strlen( str );
 462       vg_console.suggestions[ best_pos ].lev_score = score;
 463
 464       if( vg_console.suggestion_count <
 465             vg_list_size( vg_console.suggestions ) )
 466          vg_console.suggestion_count ++;
 467    }
 468 }
 469
 470 static void console_update_suggestions(void)
 471 {
 472    if( vg_ui.focused_control_type != k_ui_control_textbox ||
 473        vg_ui.textbuf != vg_console.input )
 474       return;
 475
 476    vg_console.suggestion_count = 0;
 477    vg_console.suggestion_select = -1;
 478    vg_console.suggestion_maxlen = 0;
 479
 480    /*
 481     * - must be typing something
 482     * - must be at the end
 483     * - prev char must not be a whitespace
 484     * - cursors should match
 485     */
 486
 487    if( vg_ui.textbox.cursor_pos == 0 ) return;
 488    if( vg_ui.textbox.cursor_pos != vg_ui.textbox.cursor_user ) return;
 489    if( vg_console.input[ vg_ui.textbox.cursor_pos ] != '\0' ) return;
 490
 491    if(  (vg_console.input[ vg_ui.textbox.cursor_pos -1 ] == ' ') ||
 492         (vg_console.input[ vg_ui.textbox.cursor_pos -1 ] == '\t') )
 493       return;
 494
 495    char temp[128];
 496    const char *args[8];
 497
 498    int token_count = vg_console_tokenize( vg_console.input, temp, args );
 499    if( !token_count ) return;
 500    vg_console.suggestion_pastepos = args[token_count-1]-temp;
 501
 502    /* Score all our commands and cvars */
 503    if( token_count == 1 ){
 504       for( int i=0; i<vg_console.var_count; i++ ){
 505          vg_var *cvar = &vg_console.vars[i];
 506          console_suggest_score_text( cvar->name, args[0], 1 );
 507       }
 508
 509       for( int i=0; i<vg_console.function_count; i++ ){
 510          vg_cmd *cmd = &vg_console.functions[i];
 511          console_suggest_score_text( cmd->name, args[0], 1 );
 512       }
 513    }
 514    else{
 515       vg_cmd *cmd = vg_console_match_cmd( args[0] );
 516       vg_var *var = vg_console_match_var( args[0] );
 517
 518       assert( !( cmd && var ) );
 519
 520       if( cmd )
 521          if( cmd->poll_suggest )
 522             cmd->poll_suggest( token_count-1, &args[1] );
 523    }
 524
 525    /* some post processing */
 526    for( int i=0; i<vg_console.suggestion_count; i++ ){
 527       vg_console.suggestion_maxlen = VG_MAX( vg_console.suggestion_maxlen,
 528                                              vg_console.suggestions[i].len );
 529
 530       if( vg_console.suggestions[i].lev_score <
 531           vg_console.suggestions[0].lev_score/2 )
 532       {
 533          vg_console.suggestion_count = i;
 534          return;
 535       }
 536    }
 537 }
 538
 539 /*
 540  * Suggestion controls
 541  */
 542 static void _console_fetch_suggestion(void)
 543 {
 544    char *target = &vg_console.input[ vg_console.suggestion_pastepos ];
 545
 546    if( vg_console.suggestion_select == -1 ){
 547       strcpy( target, vg_console.input_copy );
 548       _ui_textbox_move_cursor( &vg_ui.textbox.cursor_user,
 549                                &vg_ui.textbox.cursor_pos, 10000, 1 );
 550    }
 551    else{
 552       strncpy( target,
 553             vg_console.suggestions[ vg_console.suggestion_select ].str,
 554             vg_list_size( vg_console.input )-1 );
 555
 556       _ui_textbox_move_cursor( &vg_ui.textbox.cursor_user,
 557                                &vg_ui.textbox.cursor_pos, 10000, 1 );
 558       _ui_textbox_put_char( ' ' );
 559    }
 560 }
 561
 562 static void _console_suggest_store_normal(void)
 563 {
 564    if( vg_console.suggestion_select == -1 ){
 565       char *target = &vg_console.input[ vg_console.suggestion_pastepos ];
 566       strcpy( vg_console.input_copy, target );
 567    }
 568 }
 569
 570 static void _console_suggest_next(void)
 571 {
 572    if( vg_console.suggestion_count ){
 573       _console_suggest_store_normal();
 574
 575       vg_console.suggestion_select ++;
 576
 577       if( vg_console.suggestion_select >= vg_console.suggestion_count )
 578          vg_console.suggestion_select = -1;
 579
 580       _console_fetch_suggestion();
 581    }
 582 }
 583
 584 static void _console_suggest_prev(void)
 585 {
 586    if( vg_console.suggestion_count ){
 587       _console_suggest_store_normal();
 588
 589       vg_console.suggestion_select --;
 590
 591       if( vg_console.suggestion_select < -1 )
 592          vg_console.suggestion_select = vg_console.suggestion_count-1;
 593
 594       _console_fetch_suggestion();
 595    }
 596 }
 597
 598 static void _vg_console_on_update( char *buf, u32 len )
 599 {
 600    if( buf == vg_console.input ){
 601       console_update_suggestions();
 602    }
 603 }
 604
 605 static void console_history_get( char* buf, int entry_num )
 606 {
 607         if( !vg_console.history_count )
 608                 return;
 609
 610    int offset = VG_MIN( entry_num, vg_console.history_count -1 ),
 611        pick = (vg_console.history_last - offset) %
 612                vg_list_size( vg_console.history );
 613         strcpy( buf, vg_console.history[ pick ] );
 614 }
 615
 616 static void _vg_console_on_up( char *buf, u32 len )
 617 {
 618    if( buf == vg_console.input ){
 619       vg_console.history_pos =
 620       VG_MAX
 621       (
 622         0,
 623         VG_MIN
 624         (
 625           vg_console.history_pos+1,
 626           VG_MIN
 627           (
 628             vg_list_size( vg_console.history ),
 629             vg_console.history_count - 1
 630           )
 631         )
 632       );
 633
 634       console_history_get( vg_console.input, vg_console.history_pos );
 635       _ui_textbox_move_cursor( &vg_ui.textbox.cursor_user,
 636                                &vg_ui.textbox.cursor_pos,
 637                                vg_list_size(vg_console.input)-1, 1);
 638    }
 639 }
 640
 641 static void _vg_console_on_down( char *buf, u32 len )
 642 {
 643    if( buf == vg_console.input ){
 644       vg_console.history_pos = VG_MAX( 0, vg_console.history_pos-1 );
 645       console_history_get( vg_console.input, vg_console.history_pos );
 646
 647       _ui_textbox_move_cursor( &vg_ui.textbox.cursor_user,
 648                                &vg_ui.textbox.cursor_pos,
 649                                vg_list_size(vg_console.input)-1, 1 );
 650    }
 651 }
 652
 653 static void _vg_console_on_enter( char *buf, u32 len )
 654 {
 655    if( buf == vg_console.input ){
 656       if( !strlen( vg_console.input ) )
 657          return;
 658
 659       vg_info( "%s\n", vg_console.input );
 660
 661       if( strcmp( vg_console.input,
 662                   vg_console.history[ vg_console.history_last ]) )
 663       {
 664          vg_console.history_last = ( vg_console.history_last + 1) %
 665                                     vg_list_size(vg_console.history );
 666          vg_console.history_count =
 667             VG_MIN( vg_list_size( vg_console.history ),
 668                   vg_console.history_count + 1 );
 669          strcpy( vg_console.history[ vg_console.history_last ],
 670                  vg_console.input );
 671       }
 672
 673       vg_console.history_pos = -1;
 674       vg_execute_console_input( vg_console.input );
 675       _ui_textbox_move_cursor( &vg_ui.textbox.cursor_user,
 676                                &vg_ui.textbox.cursor_pos, -10000, 1 );
 677
 678       vg_console.input[0] = '\0';
 679       console_update_suggestions();
 680    }
 681 }
 682
 683 static void _vg_console_draw(void)
 684 {
 685         if( !vg_console.enabled ) return;
 686
 687    SDL_AtomicLock( &log_print_sl );
 688
 689         int ptr = vg_log.log_line_current;
 690    int const fh = vg_ui.font->line_height, log_lines = 32;
 691    int console_lines = VG_MIN( log_lines, vg_log.log_line_count );
 692
 693    ui_rect rect_log   = { 0, 0,                vg.window_x, log_lines*fh },
 694            rect_input = { 0, log_lines*fh + 1, vg.window_x, fh*2 },
 695            rect_line  = { 0, 0,                vg.window_x, fh };
 696
 697    /*
 698     * log
 699     */
 700    u32 bg_colour = (ui_colour( k_ui_bg )&0x00ffffff)|0x9f000000;
 701
 702    ui_fill( rect_log, bg_colour );
 703    rect_line[1] = rect_log[1]+rect_log[3]-fh;
 704
 705    for( int i=0; i<console_lines; i ++ ){
 706       ptr --;
 707
 708       if( ptr < 0 ) ptr = vg_list_size( vg_log.log )-1;
 709
 710       ui_text( rect_line, vg_log.log[ptr], 1, k_ui_align_left, 0 );
 711       rect_line[1] -= fh;
 712    }
 713
 714    /*
 715     * Input area
 716     */
 717
 718    struct ui_textbox_callbacks callbacks = {
 719       .up = _vg_console_on_up,
 720       .down = _vg_console_on_down,
 721       .change = _vg_console_on_update,
 722       .enter = _vg_console_on_enter,
 723    };
 724    ui_textbox( rect_input, NULL,
 725                vg_console.input, vg_list_size(vg_console.input), 1,
 726                UI_TEXTBOX_AUTOFOCUS, &callbacks );
 727
 728    /*
 729     * suggestions
 730     */
 731    if( vg_console.suggestion_count ){
 732       ui_rect rect_suggest;
 733       rect_copy( rect_input, rect_suggest );
 734
 735       rect_suggest[0] += 6 + vg_ui.font->spacing*vg_console.suggestion_pastepos;
 736       rect_suggest[1] += rect_input[3];
 737       rect_suggest[2]  = vg_ui.font->spacing * vg_console.suggestion_maxlen;
 738       rect_suggest[3]  = vg_console.suggestion_count * fh;
 739
 740       ui_fill( rect_suggest, bg_colour );
 741
 742       rect_suggest[3] = fh;
 743
 744       for( int i=0; i<vg_console.suggestion_count; i ++ ){
 745          u32 text_colour;
 746          if( i == vg_console.suggestion_select ){
 747             ui_fill( rect_suggest, ui_colour( k_ui_orange ) );
 748             text_colour = ui_colourcont( k_ui_orange );
 749          }
 750          else text_colour = ui_colourcont( k_ui_bg );
 751
 752          ui_text( rect_suggest, vg_console.suggestions[i].str, 1,
 753                   k_ui_align_left, text_colour );
 754
 755          rect_suggest[1] += fh;
 756       }
 757    }
 758
 759    SDL_AtomicUnlock( &log_print_sl );
 760 }
 761
 762
 763 #endif /* VG_CONSOLE_H */