freeldr/freeldr/tui.h

   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 #ifndef __TUI_H
  21 #define __TUI_H
  22
  23 #define SCREEN_MEM                              0xB8000
  24 #define TITLE_BOX_HEIGHT                5
  25
  26 // Initialize Textual-User-Interface
  27 BOOL    InitUserInterface(VOID);
  28 // Fills the entire screen with a backdrop
  29 void    DrawBackdrop(void);
  30 // Fills the area specified with cFillChar and cAttr
  31 void    FillArea(int nLeft, int nTop, int nRight, int nBottom, char cFillChar, char cAttr /* Color Attributes */);
  32 // Draws a shadow on the bottom and right sides of the area specified
  33 void    DrawShadow(int nLeft, int nTop, int nRight, int nBottom);
  34 // Draws a box around the area specified
  35 void    DrawBox(int nLeft, int nTop, int nRight, int nBottom, int nVertStyle, int nHorzStyle, int bFill, int bShadow, char cAttr);
  36 // Draws text at coordinates specified
  37 void    DrawText(int nX, int nY, char *text, char cAttr);
  38 // Draws text at the very bottom line on the screen
  39 void    DrawStatusText(char *text);
  40 // Updates the date and time
  41 void    UpdateDateTime(void);
  42 // Saves the screen so that it can be restored later
  43 void    SaveScreen(char *buffer);
  44 // Restores the screen from a previous save
  45 void    RestoreScreen(char *buffer);
  46 // Displays a message box on the screen with an ok button
  47 void    MessageBox(char *text);
  48 // Adds a line of text to the message box buffer
  49 void    MessageLine(char *text);
  50 // Returns true if color is valid
  51 BOOL    IsValidColor(char *color);
  52 // Converts the text color into it's equivalent color value
  53 char    TextToColor(char *color);
  54 // Returns true if fill is valid
  55 BOOL    IsValidFillStyle(char *fill);
  56 // Converts the text fill into it's equivalent fill value
  57 char    TextToFillStyle(char *fill);
  58 // Draws the progress bar showing nPos percent filled
  59 void    DrawProgressBar(int nPos);
  60
  61 /*
  62  * Combines the foreground and background colors into a single attribute byte
  63  */
  64 #define ATTR(cFore, cBack)      ((cBack << 4)|cFore)
  65
  66 /*
  67  * Fill styles for DrawBackdrop()
  68  */
  69 #define LIGHT_FILL                      0xB0
  70 #define MEDIUM_FILL                     0xB1
  71 #define DARK_FILL                       0xB2
  72
  73 /*
  74  * Screen colors
  75  */
  76 #define COLOR_BLACK                     0
  77 #define COLOR_BLUE                      1
  78 #define COLOR_GREEN                     2
  79 #define COLOR_CYAN                      3
  80 #define COLOR_RED                       4
  81 #define COLOR_MAGENTA           5
  82 #define COLOR_BROWN                     6
  83 #define COLOR_GRAY                      7
  84
  85 #define COLOR_DARKGRAY          8
  86 #define COLOR_LIGHTBLUE         9
  87 #define COLOR_LIGHTGREEN        10
  88 #define COLOR_LIGHTCYAN         11
  89 #define COLOR_LIGHTRED          12
  90 #define COLOR_LIGHTMAGENTA      13
  91 #define COLOR_YELLOW            14
  92 #define COLOR_WHITE                     15
  93
  94 /* Add COLOR_BLINK to a background to cause blinking */
  95 #define COLOR_BLINK                     8
  96
  97 /*
  98  * Defines for IBM box drawing characters
  99  */
 100 #define HORZ    (0xc4)  /* Single horizontal line */
 101 #define D_HORZ  (0xcd)  /* Double horizontal line.*/
 102 #define VERT    (0xb3)  /* Single vertical line   */
 103 #define D_VERT  (0xba)  /* Double vertical line.  */
 104
 105 /* Definitions for corners, depending on HORIZ and VERT */
 106 #define UL              (0xda)
 107 #define UR              (0xbf)  /* HORZ and VERT */
 108 #define LL              (0xc0)
 109 #define LR              (0xd9)
 110
 111 #define D_UL    (0xc9)
 112 #define D_UR    (0xbb)  /* D_HORZ and D_VERT */
 113 #define D_LL    (0xc8)
 114 #define D_LR    (0xbc)
 115
 116 #define HD_UL   (0xd5)
 117 #define HD_UR   (0xb8)  /* D_HORZ and VERT */
 118 #define HD_LL   (0xd4)
 119 #define HD_LR   (0xbe)
 120
 121 #define VD_UL   (0xd6)
 122 #define VD_UR   (0xb7)  /* HORZ and D_VERT */
 123 #define VD_LL   (0xd3)
 124 #define VD_LR   (0xbd)
 125
 126 // Key codes
 127 #define KEY_EXTENDED    0x00
 128 #define KEY_ENTER               0x0D
 129 #define KEY_SPACE               0x20
 130 #define KEY_UP                  0x48
 131 #define KEY_DOWN                0x50
 132 #define KEY_LEFT                0x4B
 133 #define KEY_RIGHT               0x4D
 134 #define KEY_ESC                 0x1B
 135 #define KEY_F1                  0x3B
 136 #define KEY_F2                  0x3C
 137 #define KEY_F3                  0x3D
 138 #define KEY_F4                  0x3E
 139 #define KEY_F5                  0x3F
 140 #define KEY_F6                  0x40
 141 #define KEY_F7                  0x41
 142 #define KEY_F8                  0x42
 143 #define KEY_F9                  0x43
 144 #define KEY_F10                 0x44
 145
 146 #endif // #defined __TUI_H