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,
 203 #ifdef VG_DEVWINDOW
 204                        VG_VAR_PERSISTENT
 205 #else
 206                        0
 207 #endif
 208                        );
 209 }
 210
 211 VG_STATIC void vg_console_load_autos(void){
 212    _vg_console_exec( 1, (const char *[]){ "auto.conf" } );
 213 }
 214
 215 VG_STATIC void _vg_console_write_persistent(void){
 216         FILE *fp = fopen( "cfg/auto.conf", "w" );
 217
 218         for( int i=0; i<vg_console.var_count; i ++ ){
 219                 struct vg_var *cv = &vg_console.vars[i];
 220
 221                 if( cv->flags & VG_VAR_PERSISTENT ){
 222                         switch( cv->data_type ){
 223                                 case k_var_dtype_i32:
 224                                         fprintf( fp, "%s %d\n", cv->name, *(i32 *)(cv->data) );
 225                                 break;
 226                                 case k_var_dtype_u32:
 227                                         fprintf( fp, "%s %u\n", cv->name, *(u32 *)(cv->data) );
 228                                 break;
 229                                 case k_var_dtype_f32:
 230                                         fprintf( fp, "%s %.5f\n", cv->name, *(float *)(cv->data ) );
 231                                 break;
 232                         }
 233                 }
 234         }
 235
 236         fclose( fp );
 237 }
 238
 239 VG_STATIC void _vg_console_free(void)
 240 {
 241         _vg_console_write_persistent();
 242 }
 243
 244 /*
 245  * splits src into tokens and fills out args as pointers to those tokens
 246  * returns number of tokens
 247  * dst must be as long as src
 248  */
 249 VG_STATIC int vg_console_tokenize( const char *src, char *dst,
 250                                    const char *args[8] )
 251 {
 252         int arg_count = 0,
 253        in_token = 0;
 254
 255         for( int i=0;; i ++ ){
 256                 if( src[i] ){
 257                         if( src[i] == ' ' || src[i] == '\t' ){
 258             if( in_token )
 259                dst[i] = '\0';
 260
 261                                 in_token = 0;
 262
 263                                 if( arg_count == 8 )
 264                                         break;
 265                         }
 266                         else{
 267                                 dst[i] = src[i];
 268
 269                                 if( !in_token ){
 270                                         args[ arg_count ++ ] = &dst[i];
 271                                         in_token = 1;
 272                                 }
 273                         }
 274                 }
 275                 else{
 276                         dst[i] = '\0';
 277                         break;
 278                 }
 279         }
 280
 281    return arg_count;
 282 }
 283
 284 VG_STATIC vg_var *vg_console_match_var( const char *kw )
 285 {
 286         for( int i=0; i<vg_console.var_count; i ++ ){
 287                 struct vg_var *cv = &vg_console.vars[ i ];
 288                 if( !strcmp( cv->name, kw ) ){
 289          return cv;
 290       }
 291    }
 292
 293    return NULL;
 294 }
 295
 296 VG_STATIC vg_cmd *vg_console_match_cmd( const char *kw )
 297 {
 298         for( int i=0; i<vg_console.function_count; i ++ ){
 299                 struct vg_cmd *cmd = &vg_console.functions[ i ];
 300                 if( !strcmp( cmd->name, kw ) ){
 301          return cmd;
 302       }
 303    }
 304
 305    return NULL;
 306 }
 307
 308 VG_STATIC void vg_execute_console_input( const char *cmd )
 309 {
 310         char temp[512];
 311         char const *args[8];
 312         int arg_count = vg_console_tokenize( cmd, temp, args );
 313
 314         if( arg_count == 0 )
 315                 return;
 316
 317    vg_var *cv = vg_console_match_var( args[0] );
 318    vg_cmd *fn = vg_console_match_cmd( args[0] );
 319
 320    assert( !(cv && fn) );
 321
 322    if( cv ){
 323       /* Cvar Matched, try get value */
 324       if( arg_count >= 2 ){
 325          if( cv->flags & VG_VAR_CHEAT ){
 326             if( !vg_console.cheats ){
 327                vg_error( "variable is cheat protected\n" );
 328                return;
 329             }
 330          }
 331
 332          if( (cv->data_type == k_var_dtype_u32) ||
 333              (cv->data_type == k_var_dtype_i32) )
 334          {
 335             int *ptr = cv->data;
 336             *ptr = atoi( args[1] );
 337
 338             if( cv->flags & VG_VAR_CHEATTOGGLE ){
 339                if( *ptr ){
 340                   _ccmd_vg_console_defaults( 0, NULL );
 341                }
 342             }
 343          }
 344          else if( cv->data_type == k_var_dtype_f32 ){
 345             float *ptr = cv->data;
 346             *ptr = atof( args[1] );
 347          }
 348       }
 349       else{
 350          if( cv->data_type == k_var_dtype_i32 )
 351             vg_info( "= %d\n", *((int *)cv->data) );
 352          else if( cv->data_type == k_var_dtype_u32 )
 353             vg_info( "= %u\n", *((u32 *)cv->data) );
 354          else if( cv->data_type == k_var_dtype_f32 )
 355             vg_info( "= %.4f\n", *((float *)cv->data) );
 356       }
 357
 358       return;
 359         }
 360    else if( fn ){
 361       fn->function( arg_count-1, args+1 );
 362       return;
 363    }
 364
 365         vg_error( "No command/var named '%s'. Use 'list' to view all\n", args[0] );
 366 }
 367
 368 u32 str_lev_distance( const char *s1, const char *s2 ){
 369    u32 m = strlen( s1 ),
 370        n = strlen( s2 );
 371
 372    if( m==0 ) return n;
 373    if( n==0 ) return m;
 374
 375    assert( n+1 <= 256 );
 376
 377    u32 costs[ 256 ];
 378
 379    for( u32 k=0; k<=n; k++ )
 380       costs[k] = k;
 381
 382    u32 i = 0;
 383    for( u32 i=0; i<m; i++ ){
 384       costs[0] = i+1;
 385
 386       u32 corner = i;
 387
 388       for( u32 j=0; j<n; j++ ){
 389          u32 upper = costs[j+1];
 390
 391          if( s1[i] == s2[j] )
 392             costs[ j+1 ] = corner;
 393          else{
 394             u32 t = (upper < corner)? upper: corner;
 395             costs[j+1] = ((costs[j] < t)? costs[j]: t) + 1;
 396          }
 397
 398          corner = upper;
 399       }
 400    }
 401
 402    return costs[n];
 403 }
 404
 405 u32 str_lcs( const char *s1, const char *s2 ){
 406    u32 m = VG_MIN( 31, strlen( s1 ) ),
 407        n = VG_MIN( 31, strlen( s2 ) );
 408
 409    int suff[32][32],
 410        result = 0;
 411
 412    for( int i=0; i<=m; i++ ){
 413       for( int j=0; j<=n; j++ ){
 414          if( i == 0 || j == 0 )
 415             suff[i][j] = 0;
 416          else if( s1[i-1] == s2[j-1] ){
 417             suff[i][j] = suff[i-1][j-1] + 1;
 418             result = VG_MAX( result, suff[i][j] );
 419          }
 420          else
 421             suff[i][j] = 0;
 422       }
 423    }
 424
 425    return result;
 426 }
 427
 428 /* str must not fuckoff ever! */
 429 VG_STATIC void console_suggest_score_text( const char *str, const char *input,
 430                                            int minscore )
 431 {
 432    /* filter duplicates */
 433    for( int i=0; i<vg_console.suggestion_count; i++ )
 434       if( !strcmp( vg_console.suggestions[i].str, str ) )
 435          return;
 436
 437    /* calc score */
 438    u32 score = str_lcs( str, input );
 439
 440    if( score < minscore )
 441       return;
 442
 443    int best_pos = vg_console.suggestion_count;
 444    for( int j=best_pos-1; j>=0; j -- )
 445       if( score > vg_console.suggestions[j].lev_score )
 446          best_pos = j;
 447
 448    /* insert if good score */
 449    if( best_pos < vg_list_size( vg_console.suggestions ) ){
 450       int start = VG_MIN( vg_console.suggestion_count,
 451                           vg_list_size( vg_console.suggestions )-1 );
 452       for( int j=start; j>best_pos; j -- )
 453          vg_console.suggestions[j] = vg_console.suggestions[j-1];
 454
 455       vg_console.suggestions[ best_pos ].str = str;
 456       vg_console.suggestions[ best_pos ].len = strlen( str );
 457       vg_console.suggestions[ best_pos ].lev_score = score;
 458
 459       if( vg_console.suggestion_count <
 460             vg_list_size( vg_console.suggestions ) )
 461          vg_console.suggestion_count ++;
 462    }
 463 }
 464
 465 VG_STATIC void console_update_suggestions(void)
 466 {
 467    if( vg_ui.focused_control_type != k_ui_control_textbox ||
 468        vg_ui.textbuf != vg_console.input )
 469       return;
 470
 471    vg_console.suggestion_count = 0;
 472    vg_console.suggestion_select = -1;
 473    vg_console.suggestion_maxlen = 0;
 474
 475    /*
 476     * - must be typing something
 477     * - must be at the end
 478     * - prev char must not be a whitespace
 479     * - cursors should match
 480     */
 481
 482    if( vg_ui.textbox.cursor_pos == 0 ) return;
 483    if( vg_ui.textbox.cursor_pos != vg_ui.textbox.cursor_user ) return;
 484    if( vg_console.input[ vg_ui.textbox.cursor_pos ] != '\0' ) return;
 485
 486    if(  (vg_console.input[ vg_ui.textbox.cursor_pos -1 ] == ' ') ||
 487         (vg_console.input[ vg_ui.textbox.cursor_pos -1 ] == '\t') )
 488       return;
 489
 490    char temp[128];
 491    const char *args[8];
 492
 493    int token_count = vg_console_tokenize( vg_console.input, temp, args );
 494    if( !token_count ) return;
 495    vg_console.suggestion_pastepos = args[token_count-1]-temp;
 496
 497    /* Score all our commands and cvars */
 498    if( token_count == 1 ){
 499       for( int i=0; i<vg_console.var_count; i++ ){
 500          vg_var *cvar = &vg_console.vars[i];
 501          console_suggest_score_text( cvar->name, args[0], 1 );
 502       }
 503
 504       for( int i=0; i<vg_console.function_count; i++ ){
 505          vg_cmd *cmd = &vg_console.functions[i];
 506          console_suggest_score_text( cmd->name, args[0], 1 );
 507       }
 508    }
 509    else{
 510       vg_cmd *cmd = vg_console_match_cmd( args[0] );
 511       vg_var *var = vg_console_match_var( args[0] );
 512
 513       assert( !( cmd && var ) );
 514
 515       if( cmd )
 516          if( cmd->poll_suggest )
 517             cmd->poll_suggest( token_count-1, &args[1] );
 518    }
 519
 520    /* some post processing */
 521    for( int i=0; i<vg_console.suggestion_count; i++ ){
 522       vg_console.suggestion_maxlen = VG_MAX( vg_console.suggestion_maxlen,
 523                                              vg_console.suggestions[i].len );
 524
 525       if( vg_console.suggestions[i].lev_score <
 526           vg_console.suggestions[0].lev_score/2 )
 527       {
 528          vg_console.suggestion_count = i;
 529          return;
 530       }
 531    }
 532 }
 533
 534 /*
 535  * Suggestion controls
 536  */
 537 VG_STATIC void _console_fetch_suggestion(void)
 538 {
 539    char *target = &vg_console.input[ vg_console.suggestion_pastepos ];
 540
 541    if( vg_console.suggestion_select == -1 ){
 542       strcpy( target, vg_console.input_copy );
 543       _ui_textbox_move_cursor( &vg_ui.textbox.cursor_user,
 544                                &vg_ui.textbox.cursor_pos, 10000, 1 );
 545    }
 546    else{
 547       strncpy( target,
 548             vg_console.suggestions[ vg_console.suggestion_select ].str,
 549             vg_list_size( vg_console.input )-1 );
 550
 551       _ui_textbox_move_cursor( &vg_ui.textbox.cursor_user,
 552                                &vg_ui.textbox.cursor_pos, 10000, 1 );
 553       _ui_textbox_put_char( ' ' );
 554    }
 555 }
 556
 557 VG_STATIC void _console_suggest_store_normal(void)
 558 {
 559    if( vg_console.suggestion_select == -1 ){
 560       char *target = &vg_console.input[ vg_console.suggestion_pastepos ];
 561       strcpy( vg_console.input_copy, target );
 562    }
 563 }
 564
 565 VG_STATIC void _console_suggest_next(void)
 566 {
 567    if( vg_console.suggestion_count ){
 568       _console_suggest_store_normal();
 569
 570       vg_console.suggestion_select ++;
 571
 572       if( vg_console.suggestion_select >= vg_console.suggestion_count )
 573          vg_console.suggestion_select = -1;
 574
 575       _console_fetch_suggestion();
 576    }
 577 }
 578
 579 VG_STATIC void _console_suggest_prev(void)
 580 {
 581    if( vg_console.suggestion_count ){
 582       _console_suggest_store_normal();
 583
 584       vg_console.suggestion_select --;
 585
 586       if( vg_console.suggestion_select < -1 )
 587          vg_console.suggestion_select = vg_console.suggestion_count-1;
 588
 589       _console_fetch_suggestion();
 590    }
 591 }
 592
 593 VG_STATIC void _vg_console_on_update( char *buf, u32 len )
 594 {
 595    if( buf == vg_console.input ){
 596       console_update_suggestions();
 597    }
 598 }
 599
 600 VG_STATIC void console_history_get( char* buf, int entry_num )
 601 {
 602         if( !vg_console.history_count )
 603                 return;
 604
 605    int offset = VG_MIN( entry_num, vg_console.history_count -1 ),
 606        pick = (vg_console.history_last - offset) %
 607                vg_list_size( vg_console.history );
 608         strcpy( buf, vg_console.history[ pick ] );
 609 }
 610
 611 VG_STATIC void _vg_console_on_up( char *buf, u32 len )
 612 {
 613    if( buf == vg_console.input ){
 614       vg_console.history_pos =
 615       VG_MAX
 616       (
 617         0,
 618         VG_MIN
 619         (
 620           vg_console.history_pos+1,
 621           VG_MIN
 622           (
 623             vg_list_size( vg_console.history ),
 624             vg_console.history_count - 1
 625           )
 626         )
 627       );
 628
 629       console_history_get( vg_console.input, vg_console.history_pos );
 630       _ui_textbox_move_cursor( &vg_ui.textbox.cursor_user,
 631                                &vg_ui.textbox.cursor_pos,
 632                                vg_list_size(vg_console.input)-1, 1);
 633    }
 634 }
 635
 636 VG_STATIC void _vg_console_on_down( char *buf, u32 len )
 637 {
 638    if( buf == vg_console.input ){
 639       vg_console.history_pos = VG_MAX( 0, vg_console.history_pos-1 );
 640       console_history_get( vg_console.input, vg_console.history_pos );
 641
 642       _ui_textbox_move_cursor( &vg_ui.textbox.cursor_user,
 643                                &vg_ui.textbox.cursor_pos,
 644                                vg_list_size(vg_console.input)-1, 1 );
 645    }
 646 }
 647
 648 VG_STATIC void _vg_console_on_enter( char *buf, u32 len )
 649 {
 650    if( buf == vg_console.input ){
 651       if( !strlen( vg_console.input ) )
 652          return;
 653
 654       vg_info( "%s\n", vg_console.input );
 655
 656       if( strcmp( vg_console.input,
 657                   vg_console.history[ vg_console.history_last ]) )
 658       {
 659          vg_console.history_last = ( vg_console.history_last + 1) %
 660                                     vg_list_size(vg_console.history );
 661          vg_console.history_count =
 662             VG_MIN( vg_list_size( vg_console.history ),
 663                   vg_console.history_count + 1 );
 664          strcpy( vg_console.history[ vg_console.history_last ],
 665                  vg_console.input );
 666       }
 667
 668       vg_console.history_pos = -1;
 669       vg_execute_console_input( vg_console.input );
 670       _ui_textbox_move_cursor( &vg_ui.textbox.cursor_user,
 671                                &vg_ui.textbox.cursor_pos, -10000, 1 );
 672
 673       vg_console.input[0] = '\0';
 674       console_update_suggestions();
 675    }
 676 }
 677
 678 VG_STATIC void _vg_console_draw(void)
 679 {
 680         if( !vg_console.enabled ) return;
 681
 682    SDL_AtomicLock( &log_print_sl );
 683
 684         int ptr = vg_log.log_line_current;
 685    int const fh = 14, log_lines = 32;
 686    int console_lines = VG_MIN( log_lines, vg_log.log_line_count );
 687
 688    ui_rect rect_log   = { 0, 0,                vg.window_x, log_lines*fh },
 689            rect_input = { 0, log_lines*fh + 1, vg.window_x, fh*2 },
 690            rect_line  = { 0, 0,                vg.window_x, fh };
 691
 692    /*
 693     * log
 694     */
 695    u32 bg_colour = (ui_colour( k_ui_bg )&0x00ffffff)|0x9f000000;
 696
 697    ui_fill( rect_log, bg_colour );
 698    rect_line[1] = rect_log[1]+rect_log[3]-fh;
 699
 700    for( int i=0; i<console_lines; i ++ ){
 701       ptr --;
 702
 703       if( ptr < 0 ) ptr = vg_list_size( vg_log.log )-1;
 704
 705       ui_text( rect_line, vg_log.log[ptr], 1, k_ui_align_left, 0 );
 706       rect_line[1] -= fh;
 707    }
 708
 709    /*
 710     * Input area
 711     */
 712
 713    struct ui_textbox_callbacks callbacks = {
 714       .up = _vg_console_on_up,
 715       .down = _vg_console_on_down,
 716       .change = _vg_console_on_update,
 717       .enter = _vg_console_on_enter
 718    };
 719    ui_textbox( rect_input, vg_console.input, vg_list_size(vg_console.input),
 720                UI_TEXTBOX_AUTOFOCUS, &callbacks );
 721
 722    /*
 723     * suggestions
 724     */
 725    if( vg_console.suggestion_count ){
 726       ui_rect rect_suggest;
 727       rect_copy( rect_input, rect_suggest );
 728
 729       rect_suggest[0] += 6 + UI_GLYPH_SPACING_X*vg_console.suggestion_pastepos;
 730       rect_suggest[1] += rect_input[3];
 731       rect_suggest[2]  = UI_GLYPH_SPACING_X * vg_console.suggestion_maxlen;
 732       rect_suggest[3]  = vg_console.suggestion_count * fh;
 733
 734       ui_fill( rect_suggest, bg_colour );
 735
 736       rect_suggest[3] = fh;
 737
 738       for( int i=0; i<vg_console.suggestion_count; i ++ ){
 739          u32 text_colour;
 740          if( i == vg_console.suggestion_select ){
 741             ui_fill( rect_suggest, ui_colour( k_ui_orange ) );
 742             text_colour = ui_colourcont( k_ui_orange );
 743          }
 744          else text_colour = ui_colourcont( k_ui_bg );
 745
 746          ui_text( rect_suggest, vg_console.suggestions[i].str, 1,
 747                   k_ui_align_left, text_colour );
 748
 749          rect_suggest[1] += fh;
 750       }
 751    }
 752
 753    SDL_AtomicUnlock( &log_print_sl );
 754 }
 755
 756
 757 #endif /* VG_CONSOLE_H */