minitui.c

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/*
 * COPYRIGHT:       See COPYING in the top level directory
 * PROJECT:         FreeLoader
 * FILE:            freeldr/ui/minitui.c
 * PURPOSE:         Mini Text UI interface
 * PROGRAMMERS:     Brian Palmer <brianp@sginet.com>
 *                  Hervé Poussineau
 */
#ifndef _M_ARM
#include <freeldr.h>

VOID MiniTuiDrawBackdrop(VOID)
{
    //
    // Fill in a black background
    //
    TuiFillArea(0,
                0,
                UiScreenWidth - 1,
                UiScreenHeight - 1,
                0,
                0);
    
    //
    // Update the screen buffer
    //
    VideoCopyOffScreenBufferToVRAM();
}

VOID MiniTuiDrawStatusText(PCSTR StatusText)
{
    //
    // Minimal UI doesn't have a status bar
    //
}

VOID MiniTuiDrawProgressBarCenter(ULONG Position, ULONG Range, PCHAR ProgressText)
{
    ULONG       Left, Top, Right, Bottom;
    ULONG       Width = 50; // Allow for 50 "bars"
    ULONG       Height = 2;

    Width = 80;
    Left = 0;
    Right = Left + Width;
    Top = UiScreenHeight - Height - 4;
    Bottom = Top + Height + 1;

    MiniTuiDrawProgressBar(Left, Top, Right, Bottom, Position, Range, ProgressText);
}

VOID MiniTuiDrawProgressBar(ULONG Left, ULONG Top, ULONG Right, ULONG Bottom, ULONG Position, ULONG Range, PCHAR ProgressText)
{
    ULONG       i;
    ULONG       ProgressBarWidth = (Right - Left) - 4;

    // First make sure the progress bar text fits
    UiTruncateStringEllipsis(ProgressText, ProgressBarWidth - 4);

    if (Position > Range)
    {
        Position = Range;
    }

    //
    //  Draw the "Loading..." text
    //
    TuiDrawCenteredText(Left + 2, Top + 1, Right - 2, Top + 1, ProgressText, ATTR(7, 0));

    // Draw the percent complete
    for (i=0; i<(Position*ProgressBarWidth)/Range; i++)
    {
        TuiDrawText(Left+2+i, Top+2, "\xDB", ATTR(UiTextColor, UiMenuBgColor));
    }

    TuiUpdateDateTime();
    VideoCopyOffScreenBufferToVRAM();
}

VOID
MiniTuiDrawMenu(PUI_MENU_INFO MenuInfo)
{
    ULONG i;

    //
    // Draw the backdrop
    //
    UiDrawBackdrop();

    //
    // No GUI status bar text, just minimal text. first to tell the user to
    // choose.
    //
    UiVtbl.DrawText(0,
                    MenuInfo->Top - 2,
                    "Please select the operating system to start:",
                    ATTR(UiMenuFgColor, UiMenuBgColor));

    //
    // Now tell him how to choose
    //
    UiVtbl.DrawText(0,
                    MenuInfo->Bottom + 1,
                    "Use the up and down arrow keys to move the highlight to "
                    "your choice.",
                    ATTR(UiMenuFgColor, UiMenuBgColor));
    UiVtbl.DrawText(0,
                    MenuInfo->Bottom + 2,
                    "Press ENTER to choose.",
                    ATTR(UiMenuFgColor, UiMenuBgColor));

    //
    // And offer F8 options
    //
    UiVtbl.DrawText(0,
                    UiScreenHeight - 4,
                    "For troubleshooting and advanced startup options for "
                    "ReactOS, press F8.",
                    ATTR(UiMenuFgColor, UiMenuBgColor));

    //
    // Draw the menu box
    //
    TuiDrawMenuBox(MenuInfo);

    //
    // Draw each line of the menu
    //
    for (i = 0; i < MenuInfo->MenuItemCount; i++) TuiDrawMenuItem(MenuInfo, i);
    VideoCopyOffScreenBufferToVRAM();
}

const UIVTBL MiniTuiVtbl =
{
    TuiInitialize,
    TuiUnInitialize,
    MiniTuiDrawBackdrop,
    TuiFillArea,
    TuiDrawShadow,
    TuiDrawBox,
    TuiDrawText,
    TuiDrawCenteredText,
    MiniTuiDrawStatusText,
    TuiUpdateDateTime,
    TuiMessageBox,
    TuiMessageBoxCritical,
    MiniTuiDrawProgressBarCenter,
    MiniTuiDrawProgressBar,
    TuiEditBox,
    TuiTextToColor,
    TuiTextToFillStyle,
    MiniTuiDrawBackdrop, /* no FadeIn */ 
    TuiFadeOut,
    TuiDisplayMenu,
    MiniTuiDrawMenu,
};
#endif