gui.h

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/*
 *  FreeLoader
 *  Copyright (C) 1998-2003  Brian Palmer  <brianp@sginet.com>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#pragma once

#define TUI_SCREEN_MEM              0xB8000
#define TITLE_BOX_CHAR_HEIGHT       5

//
// Graphical User Interface Functions
//
VOID    GuiDrawBackdrop(VOID);                                  // Fills the entire screen with a backdrop
VOID    GuiFillArea(ULONG Left, ULONG Top, ULONG Right, ULONG Bottom, UCHAR FillChar, UCHAR Attr /* Color Attributes */);   // Fills the area specified with FillChar and Attr
VOID    GuiDrawShadow(ULONG Left, ULONG Top, ULONG Right, ULONG Bottom);    // Draws a shadow on the bottom and right sides of the area specified
VOID    GuiDrawBox(ULONG Left, ULONG Top, ULONG Right, ULONG Bottom, UCHAR VertStyle, UCHAR HorzStyle, BOOLEAN Fill, BOOLEAN Shadow, UCHAR Attr);   // Draws a box around the area specified
VOID    GuiDrawText(ULONG X, ULONG Y, PUCHAR Text, UCHAR Attr); // Draws text at coordinates specified
VOID    GuiDrawStatusText(PCSTR StatusText);                    // Draws text at the very bottom line on the screen
VOID    GuiUpdateDateTime(VOID);                                // Updates the date and time
VOID    GuiSaveScreen(PUCHAR Buffer);                           // Saves the screen so that it can be restored later
VOID    GuiRestoreScreen(PUCHAR Buffer);                        // Restores the screen from a previous save
VOID    GuiMessageBox(PCSTR MessageText);                       // Displays a message box on the screen with an ok button
VOID    GuiMessageBoxCritical(PCSTR MessageText);               // Displays a message box on the screen with an ok button using no system resources
VOID    GuiDrawProgressBar(ULONG Position, ULONG Range);        // Draws the progress bar showing nPos percent filled

UCHAR   GuiTextToColor(PCSTR ColorText);                        // Converts the text color into it's equivalent color value
UCHAR   GuiTextToFillStyle(PCSTR FillStyleText);                // Converts the text fill into it's equivalent fill value

//
// Menu Functions
//
BOOLEAN GuiDisplayMenu(PCSTR MenuItemList[], ULONG MenuItemCount, ULONG DefaultMenuItem, LONG MenuTimeOut, ULONG* SelectedMenuItem);

extern const UIVTBL GuiVtbl;