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 VG_STATIC void _vg_console_draw( void );
  77 void           _vg_console_println( const char *str );
  78 VG_STATIC int  _vg_console_list( int argc, char const *argv[] );
  79 VG_STATIC void _vg_console_init(void);
  80 VG_STATIC void _vg_console_write_persistent(void);
  81 VG_STATIC void _vg_console_free(void);
  82 VG_STATIC void  vg_execute_console_input( const char *cmd );
  83
  84 /*
  85  * Console interface
  86  */
  87 VG_STATIC void console_history_get( char* buf, int entry_num );
  88 VG_STATIC int _vg_console_enabled(void);
  89 VG_STATIC void console_proc_key( SDL_Keysym ev );
  90
  91 /*
  92  * Implementation
  93  */
  94 VG_STATIC int _vg_console_enabled(void){
  95         return vg_console.enabled;
  96 }
  97
  98 VG_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 VG_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 VG_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 VG_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, 0 );
 203 }
 204
 205 VG_STATIC void vg_console_load_autos(void){
 206    _vg_console_exec( 1, (const char *[]){ "auto.conf" } );
 207 }
 208
 209 VG_STATIC void _vg_console_write_persistent(void){
 210         FILE *fp = fopen( "cfg/auto.conf", "w" );
 211
 212         for( int i=0; i<vg_console.var_count; i ++ ){
 213                 struct vg_var *cv = &vg_console.vars[i];
 214
 215                 if( cv->flags & VG_VAR_PERSISTENT ){
 216                         switch( cv->data_type ){
 217                                 case k_var_dtype_i32:
 218                                         fprintf( fp, "%s %d\n", cv->name, *(i32 *)(cv->data) );
 219                                 break;
 220                                 case k_var_dtype_u32:
 221                                         fprintf( fp, "%s %u\n", cv->name, *(u32 *)(cv->data) );
 222                                 break;
 223                                 case k_var_dtype_f32:
 224                                         fprintf( fp, "%s %.5f\n", cv->name, *(float *)(cv->data ) );
 225                                 break;
 226                         }
 227                 }
 228         }
 229
 230         fclose( fp );
 231 }
 232
 233 VG_STATIC void _vg_console_free(void)
 234 {
 235         _vg_console_write_persistent();
 236 }
 237
 238 /*
 239  * splits src into tokens and fills out args as pointers to those tokens
 240  * returns number of tokens
 241  * dst must be as long as src
 242  */
 243 VG_STATIC int vg_console_tokenize( const char *src, char *dst,
 244                                    const char *args[8] )
 245 {
 246         int arg_count = 0,
 247        in_token = 0;
 248
 249         for( int i=0;; i ++ ){
 250                 if( src[i] ){
 251                         if( src[i] == ' ' || src[i] == '\t' ){
 252             if( in_token )
 253                dst[i] = '\0';
 254
 255                                 in_token = 0;
 256
 257                                 if( arg_count == 8 )
 258                                         break;
 259                         }
 260                         else{
 261                                 dst[i] = src[i];
 262
 263                                 if( !in_token ){
 264                                         args[ arg_count ++ ] = &dst[i];
 265                                         in_token = 1;
 266                                 }
 267                         }
 268                 }
 269                 else{
 270                         dst[i] = '\0';
 271                         break;
 272                 }
 273         }
 274
 275    return arg_count;
 276 }
 277
 278 VG_STATIC vg_var *vg_console_match_var( const char *kw )
 279 {
 280         for( int i=0; i<vg_console.var_count; i ++ ){
 281                 struct vg_var *cv = &vg_console.vars[ i ];
 282                 if( !strcmp( cv->name, kw ) ){
 283          return cv;
 284       }
 285    }
 286
 287    return NULL;
 288 }
 289
 290 VG_STATIC vg_cmd *vg_console_match_cmd( const char *kw )
 291 {
 292         for( int i=0; i<vg_console.function_count; i ++ ){
 293                 struct vg_cmd *cmd = &vg_console.functions[ i ];
 294                 if( !strcmp( cmd->name, kw ) ){
 295          return cmd;
 296       }
 297    }
 298
 299    return NULL;
 300 }
 301
 302 VG_STATIC void vg_execute_console_input( const char *cmd )
 303 {
 304         char temp[512];
 305         char const *args[8];
 306         int arg_count = vg_console_tokenize( cmd, temp, args );
 307
 308         if( arg_count == 0 )
 309                 return;
 310
 311    vg_var *cv = vg_console_match_var( args[0] );
 312    vg_cmd *fn = vg_console_match_cmd( args[0] );
 313
 314    assert( !(cv && fn) );
 315
 316    if( cv ){
 317       /* Cvar Matched, try get value */
 318       if( arg_count >= 2 ){
 319          if( cv->flags & VG_VAR_CHEAT ){
 320             if( !vg_console.cheats ){
 321                vg_error( "variable is cheat protected\n" );
 322                return;
 323             }
 324          }
 325
 326          if( (cv->data_type == k_var_dtype_u32) ||
 327              (cv->data_type == k_var_dtype_i32) )
 328          {
 329             int *ptr = cv->data;
 330             *ptr = atoi( args[1] );
 331
 332             if( cv->flags & VG_VAR_CHEATTOGGLE ){
 333                if( *ptr ){
 334                   _ccmd_vg_console_defaults( 0, NULL );
 335                }
 336             }
 337          }
 338          else if( cv->data_type == k_var_dtype_f32 ){
 339             float *ptr = cv->data;
 340             *ptr = atof( args[1] );
 341          }
 342       }
 343       else{
 344          if( cv->data_type == k_var_dtype_i32 )
 345             vg_info( "= %d\n", *((int *)cv->data) );
 346          else if( cv->data_type == k_var_dtype_u32 )
 347             vg_info( "= %u\n", *((u32 *)cv->data) );
 348          else if( cv->data_type == k_var_dtype_f32 )
 349             vg_info( "= %.4f\n", *((float *)cv->data) );
 350       }
 351
 352       return;
 353         }
 354    else if( fn ){
 355       fn->function( arg_count-1, args+1 );
 356       return;
 357    }
 358
 359         vg_error( "No command/var named '%s'. Use 'list' to view all\n", args[0] );
 360 }
 361
 362 u32 str_lev_distance( const char *s1, const char *s2 ){
 363    u32 m = strlen( s1 ),
 364        n = strlen( s2 );
 365
 366    if( m==0 ) return n;
 367    if( n==0 ) return m;
 368
 369    assert( n+1 <= 256 );
 370
 371    u32 costs[ 256 ];
 372
 373    for( u32 k=0; k<=n; k++ )
 374       costs[k] = k;
 375
 376    u32 i = 0;
 377    for( u32 i=0; i<m; i++ ){
 378       costs[0] = i+1;
 379
 380       u32 corner = i;
 381
 382       for( u32 j=0; j<n; j++ ){
 383          u32 upper = costs[j+1];
 384
 385          if( s1[i] == s2[j] )
 386             costs[ j+1 ] = corner;
 387          else{
 388             u32 t = (upper < corner)? upper: corner;
 389             costs[j+1] = ((costs[j] < t)? costs[j]: t) + 1;
 390          }
 391
 392          corner = upper;
 393       }
 394    }
 395
 396    return costs[n];
 397 }
 398
 399 u32 str_lcs( const char *s1, const char *s2 ){
 400    u32 m = VG_MIN( 31, strlen( s1 ) ),
 401        n = VG_MIN( 31, strlen( s2 ) );
 402
 403    int suff[32][32],
 404        result = 0;
 405
 406    for( int i=0; i<=m; i++ ){
 407       for( int j=0; j<=n; j++ ){
 408          if( i == 0 || j == 0 )
 409             suff[i][j] = 0;
 410          else if( s1[i-1] == s2[j-1] ){
 411             suff[i][j] = suff[i-1][j-1] + 1;
 412             result = VG_MAX( result, suff[i][j] );
 413          }
 414          else
 415             suff[i][j] = 0;
 416       }
 417    }
 418
 419    return result;
 420 }
 421
 422 /* str must not fuckoff ever! */
 423 VG_STATIC void console_suggest_score_text( const char *str, const char *input,
 424                                            int minscore )
 425 {
 426    /* filter duplicates */
 427    for( int i=0; i<vg_console.suggestion_count; i++ )
 428       if( !strcmp( vg_console.suggestions[i].str, str ) )
 429          return;
 430
 431    /* calc score */
 432    u32 score = str_lcs( str, input );
 433
 434    if( score < minscore )
 435       return;
 436
 437    int best_pos = vg_console.suggestion_count;
 438    for( int j=best_pos-1; j>=0; j -- )
 439       if( score > vg_console.suggestions[j].lev_score )
 440          best_pos = j;
 441
 442    /* insert if good score */
 443    if( best_pos < vg_list_size( vg_console.suggestions ) ){
 444       int start = VG_MIN( vg_console.suggestion_count,
 445                           vg_list_size( vg_console.suggestions )-1 );
 446       for( int j=start; j>best_pos; j -- )
 447          vg_console.suggestions[j] = vg_console.suggestions[j-1];
 448
 449       vg_console.suggestions[ best_pos ].str = str;
 450       vg_console.suggestions[ best_pos ].len = strlen( str );
 451       vg_console.suggestions[ best_pos ].lev_score = score;
 452
 453       if( vg_console.suggestion_count <
 454             vg_list_size( vg_console.suggestions ) )
 455          vg_console.suggestion_count ++;
 456    }
 457 }
 458
 459 VG_STATIC void console_update_suggestions(void)
 460 {
 461    if( vg_ui.focused_control_type != k_ui_control_textbox ||
 462        vg_ui.textbuf != vg_console.input )
 463       return;
 464
 465    vg_console.suggestion_count = 0;
 466    vg_console.suggestion_select = -1;
 467    vg_console.suggestion_maxlen = 0;
 468
 469    /*
 470     * - must be typing something
 471     * - must be at the end
 472     * - prev char must not be a whitespace
 473     * - cursors should match
 474     */
 475
 476    if( vg_ui.textbox.cursor_pos == 0 ) return;
 477    if( vg_ui.textbox.cursor_pos != vg_ui.textbox.cursor_user ) return;
 478    if( vg_console.input[ vg_ui.textbox.cursor_pos ] != '\0' ) return;
 479
 480    if(  (vg_console.input[ vg_ui.textbox.cursor_pos -1 ] == ' ') ||
 481         (vg_console.input[ vg_ui.textbox.cursor_pos -1 ] == '\t') )
 482       return;
 483
 484    char temp[128];
 485    const char *args[8];
 486
 487    int token_count = vg_console_tokenize( vg_console.input, temp, args );
 488    if( !token_count ) return;
 489    vg_console.suggestion_pastepos = args[token_count-1]-temp;
 490
 491    /* Score all our commands and cvars */
 492    if( token_count == 1 ){
 493       for( int i=0; i<vg_console.var_count; i++ ){
 494          vg_var *cvar = &vg_console.vars[i];
 495          console_suggest_score_text( cvar->name, args[0], 1 );
 496       }
 497
 498       for( int i=0; i<vg_console.function_count; i++ ){
 499          vg_cmd *cmd = &vg_console.functions[i];
 500          console_suggest_score_text( cmd->name, args[0], 1 );
 501       }
 502    }
 503    else{
 504       vg_cmd *cmd = vg_console_match_cmd( args[0] );
 505       vg_var *var = vg_console_match_var( args[0] );
 506
 507       assert( !( cmd && var ) );
 508
 509       if( cmd )
 510          if( cmd->poll_suggest )
 511             cmd->poll_suggest( token_count-1, &args[1] );
 512    }
 513
 514    /* some post processing */
 515    for( int i=0; i<vg_console.suggestion_count; i++ ){
 516       vg_console.suggestion_maxlen = VG_MAX( vg_console.suggestion_maxlen,
 517                                              vg_console.suggestions[i].len );
 518
 519       if( vg_console.suggestions[i].lev_score <
 520           vg_console.suggestions[0].lev_score/2 )
 521       {
 522          vg_console.suggestion_count = i;
 523          return;
 524       }
 525    }
 526 }
 527
 528 /*
 529  * Suggestion controls
 530  */
 531 VG_STATIC void _console_fetch_suggestion(void)
 532 {
 533    char *target = &vg_console.input[ vg_console.suggestion_pastepos ];
 534
 535    if( vg_console.suggestion_select == -1 ){
 536       strcpy( target, vg_console.input_copy );
 537       _ui_textbox_move_cursor( &vg_ui.textbox.cursor_user,
 538                                &vg_ui.textbox.cursor_pos, 10000, 1 );
 539    }
 540    else{
 541       strncpy( target,
 542             vg_console.suggestions[ vg_console.suggestion_select ].str,
 543             vg_list_size( vg_console.input )-1 );
 544
 545       _ui_textbox_move_cursor( &vg_ui.textbox.cursor_user,
 546                                &vg_ui.textbox.cursor_pos, 10000, 1 );
 547       _ui_textbox_put_char( ' ' );
 548    }
 549 }
 550
 551 VG_STATIC void _console_suggest_store_normal(void)
 552 {
 553    if( vg_console.suggestion_select == -1 ){
 554       char *target = &vg_console.input[ vg_console.suggestion_pastepos ];
 555       strcpy( vg_console.input_copy, target );
 556    }
 557 }
 558
 559 VG_STATIC void _console_suggest_next(void)
 560 {
 561    if( vg_console.suggestion_count ){
 562       _console_suggest_store_normal();
 563
 564       vg_console.suggestion_select ++;
 565
 566       if( vg_console.suggestion_select >= vg_console.suggestion_count )
 567          vg_console.suggestion_select = -1;
 568
 569       _console_fetch_suggestion();
 570    }
 571 }
 572
 573 VG_STATIC void _console_suggest_prev(void)
 574 {
 575    if( vg_console.suggestion_count ){
 576       _console_suggest_store_normal();
 577
 578       vg_console.suggestion_select --;
 579
 580       if( vg_console.suggestion_select < -1 )
 581          vg_console.suggestion_select = vg_console.suggestion_count-1;
 582
 583       _console_fetch_suggestion();
 584    }
 585 }
 586
 587 VG_STATIC void _vg_console_on_update( char *buf, u32 len )
 588 {
 589    if( buf == vg_console.input ){
 590       console_update_suggestions();
 591    }
 592 }
 593
 594 VG_STATIC void console_history_get( char* buf, int entry_num )
 595 {
 596         if( !vg_console.history_count )
 597                 return;
 598
 599    int offset = VG_MIN( entry_num, vg_console.history_count -1 ),
 600        pick = (vg_console.history_last - offset) %
 601                vg_list_size( vg_console.history );
 602         strcpy( buf, vg_console.history[ pick ] );
 603 }
 604
 605 VG_STATIC void _vg_console_on_up( char *buf, u32 len )
 606 {
 607    if( buf == vg_console.input ){
 608       vg_console.history_pos =
 609       VG_MAX
 610       (
 611         0,
 612         VG_MIN
 613         (
 614           vg_console.history_pos+1,
 615           VG_MIN
 616           (
 617             vg_list_size( vg_console.history ),
 618             vg_console.history_count - 1
 619           )
 620         )
 621       );
 622
 623       console_history_get( vg_console.input, vg_console.history_pos );
 624       _ui_textbox_move_cursor( &vg_ui.textbox.cursor_user,
 625                                &vg_ui.textbox.cursor_pos,
 626                                vg_list_size(vg_console.input)-1, 1);
 627    }
 628 }
 629
 630 VG_STATIC void _vg_console_on_down( char *buf, u32 len )
 631 {
 632    if( buf == vg_console.input ){
 633       vg_console.history_pos = VG_MAX( 0, vg_console.history_pos-1 );
 634       console_history_get( vg_console.input, vg_console.history_pos );
 635
 636       _ui_textbox_move_cursor( &vg_ui.textbox.cursor_user,
 637                                &vg_ui.textbox.cursor_pos,
 638                                vg_list_size(vg_console.input)-1, 1 );
 639    }
 640 }
 641
 642 VG_STATIC void _vg_console_on_enter( char *buf, u32 len )
 643 {
 644    if( buf == vg_console.input ){
 645       if( !strlen( vg_console.input ) )
 646          return;
 647
 648       vg_info( "%s\n", vg_console.input );
 649
 650       if( strcmp( vg_console.input,
 651                   vg_console.history[ vg_console.history_last ]) )
 652       {
 653          vg_console.history_last = ( vg_console.history_last + 1) %
 654                                     vg_list_size(vg_console.history );
 655          vg_console.history_count =
 656             VG_MIN( vg_list_size( vg_console.history ),
 657                   vg_console.history_count + 1 );
 658          strcpy( vg_console.history[ vg_console.history_last ],
 659                  vg_console.input );
 660       }
 661
 662       vg_console.history_pos = -1;
 663       vg_execute_console_input( vg_console.input );
 664       _ui_textbox_move_cursor( &vg_ui.textbox.cursor_user,
 665                                &vg_ui.textbox.cursor_pos, -10000, 1 );
 666
 667       vg_console.input[0] = '\0';
 668       console_update_suggestions();
 669    }
 670 }
 671
 672 VG_STATIC void _vg_console_draw(void)
 673 {
 674         if( !vg_console.enabled ) return;
 675
 676    SDL_AtomicLock( &log_print_sl );
 677
 678         int ptr = vg_log.log_line_current;
 679    int const fh = 14, log_lines = 32;
 680    int console_lines = VG_MIN( log_lines, vg_log.log_line_count );
 681
 682    ui_rect rect_log   = { 0, 0,                vg.window_x, log_lines*fh },
 683            rect_input = { 0, log_lines*fh + 1, vg.window_x, fh*2 },
 684            rect_line  = { 0, 0,                vg.window_x, fh };
 685
 686    /*
 687     * log
 688     */
 689    u32 bg_colour = (ui_colour( k_ui_bg )&0x00ffffff)|0x9f000000;
 690
 691    ui_fill( rect_log, bg_colour );
 692    rect_line[1] = rect_log[1]+rect_log[3]-fh;
 693
 694    for( int i=0; i<console_lines; i ++ ){
 695       ptr --;
 696
 697       if( ptr < 0 ) ptr = vg_list_size( vg_log.log )-1;
 698
 699       ui_text( rect_line, vg_log.log[ptr], 1, k_ui_align_left, 0 );
 700       rect_line[1] -= fh;
 701    }
 702
 703    /*
 704     * Input area
 705     */
 706
 707    struct ui_textbox_callbacks callbacks = {
 708       .up = _vg_console_on_up,
 709       .down = _vg_console_on_down,
 710       .change = _vg_console_on_update,
 711       .enter = _vg_console_on_enter
 712    };
 713    ui_textbox( rect_input, vg_console.input, vg_list_size(vg_console.input),
 714                UI_TEXTBOX_AUTOFOCUS, &callbacks );
 715
 716    /*
 717     * suggestions
 718     */
 719    if( vg_console.suggestion_count ){
 720       ui_rect rect_suggest;
 721       rect_copy( rect_input, rect_suggest );
 722
 723       rect_suggest[0] += 6 + UI_GLYPH_SPACING_X*vg_console.suggestion_pastepos;
 724       rect_suggest[1] += rect_input[3];
 725       rect_suggest[2]  = UI_GLYPH_SPACING_X * vg_console.suggestion_maxlen;
 726       rect_suggest[3]  = vg_console.suggestion_count * fh;
 727
 728       ui_fill( rect_suggest, bg_colour );
 729
 730       rect_suggest[3] = fh;
 731
 732       for( int i=0; i<vg_console.suggestion_count; i ++ ){
 733          u32 text_colour;
 734          if( i == vg_console.suggestion_select ){
 735             ui_fill( rect_suggest, ui_colour( k_ui_orange ) );
 736             text_colour = ui_colourcont( k_ui_orange );
 737          }
 738          else text_colour = ui_colourcont( k_ui_bg );
 739
 740          ui_text( rect_suggest, vg_console.suggestions[i].str, 1,
 741                   k_ui_align_left, text_colour );
 742
 743          rect_suggest[1] += fh;
 744       }
 745    }
 746
 747    SDL_AtomicUnlock( &log_print_sl );
 748 }
 749
 750
 751 #endif /* VG_CONSOLE_H */