reactos/boot/freeldr/freeldr/ui/minitui.c

/*
 * COPYRIGHT:       See COPYING in the top level directory
 * PROJECT:         FreeLoader
 * FILE:            boot/freeldr/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. Show the menu header.
    //
    if (MenuInfo->MenuHeader)
    {
        UiVtbl.DrawText(0,
                        MenuInfo->Top - 2,
                        MenuInfo->MenuHeader,
                        ATTR(UiMenuFgColor, UiMenuBgColor));
    }

    //
    // Now tell the user how to choose
    //
    UiVtbl.DrawText(0,
                    MenuInfo->Bottom + 1,
                    "Use \x18 and \x19 to move the highlight to your choice.",
                    ATTR(UiMenuFgColor, UiMenuBgColor));
    UiVtbl.DrawText(0,
                    MenuInfo->Bottom + 2,
                    "Press ENTER to choose.",
                    ATTR(UiMenuFgColor, UiMenuBgColor));

    //
    // And show the menu footer
    //
    if (MenuInfo->MenuFooter)
    {
        UiVtbl.DrawText(0,
                        UiScreenHeight - 4,
                        MenuInfo->MenuFooter,
                        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);
    }

    //
    // Display the boot options if needed
    //
    if (MenuInfo->ShowBootOptions)
    {
        DisplayBootTimeOptions();
    }

    VideoCopyOffScreenBufferToVRAM();
}

const UIVTBL MiniTuiVtbl =
{
    TuiInitialize,
    TuiUnInitialize,
    MiniTuiDrawBackdrop,
    TuiFillArea,
    TuiDrawShadow,
    TuiDrawBox,
    TuiDrawText,
    TuiDrawText2,
    TuiDrawCenteredText,
    MiniTuiDrawStatusText,
    TuiUpdateDateTime,
    TuiMessageBox,
    TuiMessageBoxCritical,
    MiniTuiDrawProgressBarCenter,
    MiniTuiDrawProgressBar,
    TuiEditBox,
    TuiTextToColor,
    TuiTextToFillStyle,
    MiniTuiDrawBackdrop, /* no FadeIn */
    TuiFadeOut,
    TuiDisplayMenu,
    MiniTuiDrawMenu,
};
#endif