freeldr/freeldr/tui.c

   1 /*
   2  *  FreeLoader
   3  *  Copyright (C) 1999, 2000  Brian Palmer  <brianp@sginet.com>
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19
  20 #include "freeldr.h"
  21 #include "stdlib.h"
  22 #include "tui.h"
  23
  24 int             nScreenWidth = 80;              // Screen Width
  25 int             nScreenHeight = 25;             // Screen Height
  26
  27 char    cStatusBarFgColor = COLOR_BLACK;                // Status bar foreground color
  28 char    cStatusBarBgColor = COLOR_CYAN;                 // Status bar background color
  29 char    cBackdropFgColor = COLOR_WHITE;                 // Backdrop foreground color
  30 char    cBackdropBgColor = COLOR_BLUE;                  // Backdrop background color
  31 char    cBackdropFillStyle = MEDIUM_FILL;               // Backdrop fill style
  32 char    cTitleBoxFgColor = COLOR_WHITE;                 // Title box foreground color
  33 char    cTitleBoxBgColor = COLOR_RED;                   // Title box background color
  34 char    cMessageBoxFgColor = COLOR_WHITE;               // Message box foreground color
  35 char    cMessageBoxBgColor = COLOR_BLUE;                // Message box background color
  36 char    cMenuFgColor = COLOR_WHITE;                             // Menu foreground color
  37 char    cMenuBgColor = COLOR_BLUE;                              // Menu background color
  38 char    cTextColor = COLOR_YELLOW;                              // Normal text color
  39 char    cSelectedTextColor = COLOR_BLACK;               // Selected text color
  40 char    cSelectedTextBgColor = COLOR_GRAY;              // Selected text background color
  41 char    szTitleBoxTitleText[260] = "Boot Menu"; // Title box's title text
  42
  43 char    szMessageBoxLineText[4000] = "";
  44
  45 void DrawBackdrop(void)
  46 {
  47         // Fill in the backdrop
  48         FillArea(0, 0, nScreenWidth-1, nScreenHeight-1, cBackdropFillStyle, ATTR(cBackdropFgColor, cBackdropBgColor));
  49
  50         // Draw the title box
  51         DrawBox(1, 1, nScreenWidth, 5, D_VERT, D_HORZ, TRUE, FALSE, ATTR(cTitleBoxFgColor, cTitleBoxBgColor));
  52
  53         // Draw version
  54         DrawText(3, 2, VERSION, ATTR(cTitleBoxFgColor, cTitleBoxBgColor));
  55         // Draw copyright
  56         DrawText(3, 3, "by Brian Palmer", ATTR(cTitleBoxFgColor, cTitleBoxBgColor));
  57         DrawText(3, 4, "<brianp@sginet.com>", ATTR(cTitleBoxFgColor, cTitleBoxBgColor));
  58
  59         // Draw help text
  60         //DrawText(nScreenWidth-15, 4, /*"F1 for Help"*/"F8 for Options", ATTR(cTitleBoxFgColor, cTitleBoxBgColor));
  61
  62         // Draw title
  63         DrawText((nScreenWidth/2)-(strlen(szTitleBoxTitleText)/2), 3, szTitleBoxTitleText, ATTR(cTitleBoxFgColor, cTitleBoxBgColor));
  64
  65         // Draw date
  66         DrawText(nScreenWidth-9, 2, "01/02/03", ATTR(cTitleBoxFgColor, cTitleBoxBgColor));
  67         // Draw time
  68         DrawText(nScreenWidth-9, 3, "10:12:34", ATTR(cTitleBoxFgColor, cTitleBoxBgColor));
  69
  70         // Draw status bar
  71         DrawStatusText("");
  72
  73         // Update the date & time
  74         UpdateDateTime();
  75 }
  76
  77 /*
  78  * FillArea()
  79  * This function assumes coordinates are zero-based
  80  */
  81 void FillArea(int nLeft, int nTop, int nRight, int nBottom, char cFillChar, char cAttr /* Color Attributes */)
  82 {
  83         char    *screen = (char *)SCREEN_MEM;
  84         int             i, j;
  85
  86         for(i=nTop; i<=nBottom; i++)
  87         {
  88                 for(j=nLeft; j<=nRight; j++)
  89                 {
  90                         screen[((i*2)*nScreenWidth)+(j*2)] = cFillChar;
  91                         screen[((i*2)*nScreenWidth)+(j*2)+1] = cAttr;
  92                 }
  93         }
  94 }
  95
  96 /*
  97  * DrawShadow()
  98  * This function assumes coordinates are zero-based
  99  */
 100 void DrawShadow(int nLeft, int nTop, int nRight, int nBottom)
 101 {
 102         char    *screen = (char *)SCREEN_MEM;
 103         int             i;
 104
 105         // Shade the bottom of the area
 106         if(nBottom < (nScreenHeight-1))
 107         {
 108                 for(i=nLeft+2; i<=nRight; i++)
 109                         screen[(((nBottom+1)*2)*nScreenWidth)+(i*2)+1] = ATTR(COLOR_GRAY, COLOR_BLACK);
 110         }
 111
 112         // Shade the right of the area
 113         if(nRight < (nScreenWidth-1))
 114         {
 115                 for(i=nTop+1; i<=nBottom; i++)
 116                         screen[((i*2)*nScreenWidth)+((nRight+1)*2)+1] = ATTR(COLOR_GRAY, COLOR_BLACK);
 117         }
 118         if(nRight+1 < (nScreenWidth-1))
 119         {
 120                 for(i=nTop+1; i<=nBottom; i++)
 121                         screen[((i*2)*nScreenWidth)+((nRight+2)*2)+1] = ATTR(COLOR_GRAY, COLOR_BLACK);
 122         }
 123
 124         // Shade the bottom right corner
 125         if((nRight < (nScreenWidth-1)) && (nBottom < (nScreenHeight-1)))
 126                 screen[(((nBottom+1)*2)*nScreenWidth)+((nRight+1)*2)+1] = ATTR(COLOR_GRAY, COLOR_BLACK);
 127         if((nRight+1 < (nScreenWidth-1)) && (nBottom < (nScreenHeight-1)))
 128                 screen[(((nBottom+1)*2)*nScreenWidth)+((nRight+2)*2)+1] = ATTR(COLOR_GRAY, COLOR_BLACK);
 129 }
 130
 131 /*
 132  * DrawBox()
 133  * This function assumes coordinates are one-based
 134  */
 135 void DrawBox(int nLeft, int nTop, int nRight, int nBottom, int nVertStyle, int nHorzStyle, int bFill, int bShadow, char cAttr)
 136 {
 137         char    cULCorner, cURCorner, cLLCorner, cLRCorner;
 138         char    cHorz, cVert;
 139
 140         nLeft--;
 141         nTop--;
 142         nRight--;
 143         nBottom--;
 144
 145         cHorz = nHorzStyle;
 146         cVert = nVertStyle;
 147         if(nHorzStyle == HORZ)
 148         {
 149                 if(nVertStyle == VERT)
 150                 {
 151                         cULCorner = UL;
 152                         cURCorner = UR;
 153                         cLLCorner = LL;
 154                         cLRCorner = LR;
 155                 }
 156                 else // nVertStyle == D_VERT
 157                 {
 158                         cULCorner = VD_UL;
 159                         cURCorner = VD_UR;
 160                         cLLCorner = VD_LL;
 161                         cLRCorner = VD_LR;
 162                 }
 163         }
 164         else // nHorzStyle == D_HORZ
 165         {
 166                 if(nVertStyle == VERT)
 167                 {
 168                         cULCorner = HD_UL;
 169                         cURCorner = HD_UR;
 170                         cLLCorner = HD_LL;
 171                         cLRCorner = HD_LR;
 172                 }
 173                 else // nVertStyle == D_VERT
 174                 {
 175                         cULCorner = D_UL;
 176                         cURCorner = D_UR;
 177                         cLLCorner = D_LL;
 178                         cLRCorner = D_LR;
 179                 }
 180         }
 181
 182         // Fill in box background
 183         if(bFill)
 184                 FillArea(nLeft, nTop, nRight, nBottom, ' ', cAttr);
 185
 186         // Fill in corners
 187         FillArea(nLeft, nTop, nLeft, nTop, cULCorner, cAttr);
 188         FillArea(nRight, nTop, nRight, nTop, cURCorner, cAttr);
 189         FillArea(nLeft, nBottom, nLeft, nBottom, cLLCorner, cAttr);
 190         FillArea(nRight, nBottom, nRight, nBottom, cLRCorner, cAttr);
 191
 192         // Fill in left line
 193         FillArea(nLeft, nTop+1, nLeft, nBottom-1, cVert, cAttr);
 194         // Fill in top line
 195         FillArea(nLeft+1, nTop, nRight-1, nTop, cHorz, cAttr);
 196         // Fill in right line
 197         FillArea(nRight, nTop+1, nRight, nBottom-1, cVert, cAttr);
 198         // Fill in bottom line
 199         FillArea(nLeft+1, nBottom, nRight-1, nBottom, cHorz, cAttr);
 200
 201         if(bShadow)
 202                 DrawShadow(nLeft, nTop, nRight, nBottom);
 203 }
 204
 205 /*
 206  * DrawText()
 207  * This function assumes coordinates are one-based
 208  */
 209 void DrawText(int nX, int nY, char *text, char cAttr)
 210 {
 211         char    *screen = (char *)SCREEN_MEM;
 212         int             i, j;
 213
 214         nX--;
 215         nY--;
 216
 217         // Draw the text
 218         for(i=nX, j=0; text[j]; i++,j++)
 219         {
 220                 screen[((nY*2)*nScreenWidth)+(i*2)] = text[j];
 221                 screen[((nY*2)*nScreenWidth)+(i*2)+1] = cAttr;
 222         }
 223 }
 224
 225 void DrawStatusText(char *text)
 226 {
 227         int     i;
 228
 229         DrawText(1, nScreenHeight, text, ATTR(cStatusBarFgColor, cStatusBarBgColor));
 230
 231         for(i=strlen(text)+1; i<=nScreenWidth; i++)
 232                 DrawText(i, nScreenHeight, " ", ATTR(cStatusBarFgColor, cStatusBarBgColor));
 233 }
 234
 235 void UpdateDateTime(void)
 236 {
 237         char    date[260];
 238         char    time[260];
 239         char    temp[20];
 240         int             hour, minute, second, bPM=FALSE;
 241
 242         switch(getmonth())
 243         {
 244         case 1:
 245                 strcpy(date, "January ");
 246                 break;
 247         case 2:
 248                 strcpy(date, "February ");
 249                 break;
 250         case 3:
 251                 strcpy(date, "March ");
 252                 break;
 253         case 4:
 254                 strcpy(date, "April ");
 255                 break;
 256         case 5:
 257                 strcpy(date, "May ");
 258                 break;
 259         case 6:
 260                 strcpy(date, "June ");
 261                 break;
 262         case 7:
 263                 strcpy(date, "July ");
 264                 break;
 265         case 8:
 266                 strcpy(date, "August ");
 267                 break;
 268         case 9:
 269                 strcpy(date, "September ");
 270                 break;
 271         case 10:
 272                 strcpy(date, "October ");
 273                 break;
 274         case 11:
 275                 strcpy(date, "November ");
 276                 break;
 277         case 12:
 278                 strcpy(date, "December ");
 279                 break;
 280         }
 281         itoa(getday(), temp, 10);
 282         if((getday() == 1) || (getday() == 21) || (getday() == 31))
 283                 strcat(temp, "st");
 284         else if((getday() == 2) || (getday() == 22))
 285                 strcat(temp, "nd");
 286         else if((getday() == 3) || (getday() == 23))
 287                 strcat(temp, "rd");
 288         else
 289                 strcat(temp, "th");
 290
 291         strcat(date, temp);
 292         strcat(date, " ");
 293         itoa(getyear(), temp, 10);
 294         strcat(date, temp);
 295
 296         // Draw the date
 297         DrawText(nScreenWidth-strlen(date)-1, 2, date, ATTR(cTitleBoxFgColor, cTitleBoxBgColor));
 298
 299         hour = gethour();
 300         if(hour > 12)
 301         {
 302                 hour -= 12;
 303                 bPM = TRUE;
 304         }
 305         if (hour == 0)
 306                 hour = 12;
 307         minute = getminute();
 308         second = getsecond();
 309         itoa(hour, temp, 10);
 310         strcpy(time, "    ");
 311         strcat(time, temp);
 312         strcat(time, ":");
 313         itoa(minute, temp, 10);
 314         if(minute < 10)
 315                 strcat(time, "0");
 316         strcat(time, temp);
 317         strcat(time, ":");
 318         itoa(second, temp, 10);
 319         if(second < 10)
 320                 strcat(time, "0");
 321         strcat(time, temp);
 322         if(bPM)
 323                 strcat(time, " PM");
 324         else
 325                 strcat(time, " AM");
 326
 327         // Draw the time
 328         DrawText(nScreenWidth-strlen(time)-1, 3, time, ATTR(cTitleBoxFgColor, cTitleBoxBgColor));
 329 }
 330
 331 void SaveScreen(char *buffer)
 332 {
 333         char    *screen = (char *)SCREEN_MEM;
 334         int             i;
 335
 336         for(i=0; i < (nScreenWidth * nScreenHeight * 2); i++)
 337                 buffer[i] = screen[i];
 338 }
 339
 340 void RestoreScreen(char *buffer)
 341 {
 342         char    *screen = (char *)SCREEN_MEM;
 343         int             i;
 344
 345         for(i=0; i < (nScreenWidth * nScreenHeight * 2); i++)
 346                 screen[i] = buffer[i];
 347 }
 348
 349 void MessageBox(char *text)
 350 {
 351         int             width = 8;
 352         int             height = 1;
 353         int             curline = 0;
 354         int             i , j, k;
 355         int             x1, x2, y1, y2;
 356         char    savebuffer[8000];
 357         char    temp[260];
 358         char    key;
 359
 360         SaveScreen(savebuffer);
 361         strcat(szMessageBoxLineText, text);
 362
 363         // Find the height
 364         for(i=0; i<strlen(szMessageBoxLineText); i++)
 365         {
 366                 if(szMessageBoxLineText[i] == '\n')
 367                         height++;
 368         }
 369
 370         // Find the width
 371         for(i=0,j=0,k=0; i<height; i++)
 372         {
 373                 while((szMessageBoxLineText[j] != '\n') && (szMessageBoxLineText[j] != 0))
 374                 {
 375                         j++;
 376                         k++;
 377                 }
 378
 379                 if(k > width)
 380                         width = k;
 381
 382                 k = 0;
 383                 j++;
 384         }
 385
 386         // Calculate box area
 387         x1 = (nScreenWidth - (width+2))/2;
 388         x2 = x1 + width + 3;
 389         y1 = ((nScreenHeight - height - 2)/2) + 1;
 390         y2 = y1 + height + 4;
 391
 392         // Draw the box
 393         DrawBox(x1, y1, x2, y2, D_VERT, D_HORZ, TRUE, TRUE, ATTR(cMessageBoxFgColor, cMessageBoxBgColor));
 394
 395         // Draw the text
 396         for(i=0,j=0; i<strlen(szMessageBoxLineText)+1; i++)
 397         {
 398                 if((szMessageBoxLineText[i] == '\n') || (szMessageBoxLineText[i] == 0))
 399                 {
 400                         temp[j] = 0;
 401                         j = 0;
 402                         DrawText(x1+2, y1+1+curline, temp, ATTR(cMessageBoxFgColor, cMessageBoxBgColor));
 403                         curline++;
 404                 }
 405                 else
 406                         temp[j++] = szMessageBoxLineText[i];
 407         }
 408
 409         // Draw OK button
 410         strcpy(temp, "   OK   ");
 411         DrawText(x1+((x2-x1)/2)-3, y2-2, temp, ATTR(COLOR_BLACK, COLOR_GRAY));
 412
 413         for(;;)
 414         {
 415                 if(kbhit())
 416                 {
 417                         key = getch();
 418                         if(key == KEY_EXTENDED)
 419                                 key = getch();
 420
 421                         if(key == KEY_ENTER)
 422                                 break;
 423                         else if(key == KEY_SPACE)
 424                                 break;
 425                 }
 426
 427                 UpdateDateTime();
 428         }
 429
 430         RestoreScreen(savebuffer);
 431         UpdateDateTime();
 432         strcpy(szMessageBoxLineText, "");
 433 }
 434
 435 void MessageLine(char *text)
 436 {
 437         strcat(szMessageBoxLineText, text);
 438         strcat(szMessageBoxLineText, "\n");
 439 }
 440
 441 BOOL IsValidColor(char *color)
 442 {
 443         if(stricmp(color, "Black") == 0)
 444                 return TRUE;
 445         else if(stricmp(color, "Blue") == 0)
 446                 return TRUE;
 447         else if(stricmp(color, "Green") == 0)
 448                 return TRUE;
 449         else if(stricmp(color, "Cyan") == 0)
 450                 return TRUE;
 451         else if(stricmp(color, "Red") == 0)
 452                 return TRUE;
 453         else if(stricmp(color, "Magenta") == 0)
 454                 return TRUE;
 455         else if(stricmp(color, "Brown") == 0)
 456                 return TRUE;
 457         else if(stricmp(color, "Gray") == 0)
 458                 return TRUE;
 459         else if(stricmp(color, "DarkGray") == 0)
 460                 return TRUE;
 461         else if(stricmp(color, "LightBlue") == 0)
 462                 return TRUE;
 463         else if(stricmp(color, "LightGreen") == 0)
 464                 return TRUE;
 465         else if(stricmp(color, "LightCyan") == 0)
 466                 return TRUE;
 467         else if(stricmp(color, "LightRed") == 0)
 468                 return TRUE;
 469         else if(stricmp(color, "LightMagenta") == 0)
 470                 return TRUE;
 471         else if(stricmp(color, "Yellow") == 0)
 472                 return TRUE;
 473         else if(stricmp(color, "White") == 0)
 474                 return TRUE;
 475
 476         return FALSE;
 477 }
 478
 479 char TextToColor(char *color)
 480 {
 481         if(stricmp(color, "Black") == 0)
 482                 return COLOR_BLACK;
 483         else if(stricmp(color, "Blue") == 0)
 484                 return COLOR_BLUE;
 485         else if(stricmp(color, "Green") == 0)
 486                 return COLOR_GREEN;
 487         else if(stricmp(color, "Cyan") == 0)
 488                 return COLOR_CYAN;
 489         else if(stricmp(color, "Red") == 0)
 490                 return COLOR_RED;
 491         else if(stricmp(color, "Magenta") == 0)
 492                 return COLOR_MAGENTA;
 493         else if(stricmp(color, "Brown") == 0)
 494                 return COLOR_BROWN;
 495         else if(stricmp(color, "Gray") == 0)
 496                 return COLOR_GRAY;
 497         else if(stricmp(color, "DarkGray") == 0)
 498                 return COLOR_DARKGRAY;
 499         else if(stricmp(color, "LightBlue") == 0)
 500                 return COLOR_LIGHTBLUE;
 501         else if(stricmp(color, "LightGreen") == 0)
 502                 return COLOR_LIGHTGREEN;
 503         else if(stricmp(color, "LightCyan") == 0)
 504                 return COLOR_LIGHTCYAN;
 505         else if(stricmp(color, "LightRed") == 0)
 506                 return COLOR_LIGHTRED;
 507         else if(stricmp(color, "LightMagenta") == 0)
 508                 return COLOR_LIGHTMAGENTA;
 509         else if(stricmp(color, "Yellow") == 0)
 510                 return COLOR_YELLOW;
 511         else if(stricmp(color, "White") == 0)
 512                 return COLOR_WHITE;
 513
 514         return COLOR_BLACK;
 515 }
 516
 517 BOOL IsValidFillStyle(char *fill)
 518 {
 519         if(stricmp(fill, "Light") == 0)
 520                 return TRUE;
 521         else if(stricmp(fill, "Medium") == 0)
 522                 return TRUE;
 523         else if(stricmp(fill, "Dark") == 0)
 524                 return TRUE;
 525
 526         return FALSE;
 527 }
 528
 529 char TextToFillStyle(char *fill)
 530 {
 531         if(stricmp(fill, "Light") == 0)
 532                 return LIGHT_FILL;
 533         else if(stricmp(fill, "Medium") == 0)
 534                 return MEDIUM_FILL;
 535         else if(stricmp(fill, "Dark") == 0)
 536                 return DARK_FILL;
 537
 538         return LIGHT_FILL;
 539 }
 540
 541 void DrawProgressBar(int nPos)
 542 {
 543         int             left, top, right, bottom;
 544         int             width = 50; // Allow for 50 "bars"
 545         int             height = 2;
 546         int             i;
 547
 548         if(nPos > 100)
 549                 nPos = 100;
 550
 551         left = (nScreenWidth - width - 4) / 2;
 552         right = left + width + 3;
 553         top = (nScreenHeight - height - 2) / 2;
 554         top += 4;
 555         bottom = top + height + 1;
 556
 557         // Draw the box
 558         DrawBox(left, top, right, bottom, VERT, HORZ, TRUE, TRUE, ATTR(cMenuFgColor, cMenuBgColor));
 559
 560         // Draw the "Loading..." text
 561         DrawText(70/2, top+1, "Loading...", ATTR(cTextColor, cMenuBgColor));
 562
 563         // Draw the percent complete
 564         for(i=0; i<(nPos/2); i++)
 565                 DrawText(left+2+i, top+2, "\xDB", ATTR(cTextColor, cMenuBgColor));
 566
 567         // Draw the rest
 568         for(; i<50; i++)
 569                 DrawText(left+2+i, top+2, "\xB2", ATTR(cTextColor, cMenuBgColor));
 570
 571         UpdateDateTime();
 572 }