tui.c File Reference

#include <freeldr.h>

Include dependency graph for tui.c:

Go to the source code of this file.

Macros
#define	TAG_TUI_SCREENBUFFER   'SiuT'
#define	TAG_TAG_TUI_PALETTE   'PiuT'

Functions
int	TuiPrintf (const char *Format,...)
BOOLEAN	TuiInitialize (VOID)
VOID	TuiUnInitialize (VOID)
VOID	TuiDrawBackdrop (VOID)
VOID	TuiFillArea (ULONG Left, ULONG Top, ULONG Right, ULONG Bottom, CHAR FillChar, UCHAR Attr)
VOID	TuiDrawShadow (ULONG Left, ULONG Top, ULONG Right, ULONG Bottom)
VOID	TuiDrawBox (ULONG Left, ULONG Top, ULONG Right, ULONG Bottom, UCHAR VertStyle, UCHAR HorzStyle, BOOLEAN Fill, BOOLEAN Shadow, UCHAR Attr)
VOID	TuiDrawText (ULONG X, ULONG Y, PCSTR Text, UCHAR Attr)
VOID	TuiDrawText2 (ULONG X, ULONG Y, ULONG MaxNumChars, PCSTR Text, UCHAR Attr)
VOID	TuiDrawCenteredText (ULONG Left, ULONG Top, ULONG Right, ULONG Bottom, PCSTR TextString, UCHAR Attr)
VOID	TuiDrawStatusText (PCSTR StatusText)
VOID	TuiUpdateDateTime (VOID)
VOID	TuiSaveScreen (PUCHAR Buffer)
VOID	TuiRestoreScreen (PUCHAR Buffer)
VOID	TuiMessageBox (PCSTR MessageText)
VOID	TuiMessageBoxCritical (PCSTR MessageText)
VOID	TuiDrawProgressBarCenter (ULONG Position, ULONG Range, PCHAR ProgressText)
VOID	TuiDrawProgressBar (ULONG Left, ULONG Top, ULONG Right, ULONG Bottom, ULONG Position, ULONG Range, PCHAR ProgressText)
UCHAR	TuiTextToColor (PCSTR ColorText)
UCHAR	TuiTextToFillStyle (PCSTR FillStyleText)
VOID	TuiFadeInBackdrop (VOID)
VOID	TuiFadeOut (VOID)
BOOLEAN	TuiEditBox (PCSTR MessageText, PCHAR EditTextBuffer, ULONG Length)

Variables
PVOID	TextVideoBuffer = NULL
const UIVTBL	TuiVtbl

Macro Definition Documentation

TAG_TAG_TUI_PALETTE

#define TAG_TAG_TUI_PALETTE   'PiuT'

Definition at line 23 of file tui.c.

TAG_TUI_SCREENBUFFER

#define TAG_TUI_SCREENBUFFER   'SiuT'

Definition at line 22 of file tui.c.

Function Documentation

TuiDrawBackdrop()

VOID TuiDrawBackdrop

(

VOID

)

Definition at line 83 of file tui.c.

{
    //
    // Fill in the background (excluding title box & status bar)
    //
    TuiFillArea(0,
            TUI_TITLE_BOX_CHAR_HEIGHT,
            UiScreenWidth - 1,
            UiScreenHeight - 2,
            UiBackdropFillStyle,
            ATTR(UiBackdropFgColor, UiBackdropBgColor));

    //
    // Draw the title box
    //
    TuiDrawBox(0,
            0,
            UiScreenWidth - 1,
            TUI_TITLE_BOX_CHAR_HEIGHT - 1,
            D_VERT,
            D_HORZ,
            TRUE,
            FALSE,
            ATTR(UiTitleBoxFgColor, UiTitleBoxBgColor));

    //
    // Draw version text
    //
    TuiDrawText(2,
            1,
            FrLdrVersionString,
            ATTR(UiTitleBoxFgColor, UiTitleBoxBgColor));

    //
    // Draw copyright
    //
    TuiDrawText(2,
            2,
            BY_AUTHOR,
            ATTR(UiTitleBoxFgColor, UiTitleBoxBgColor));
    TuiDrawText(2,
            3,
            AUTHOR_EMAIL,
            ATTR(UiTitleBoxFgColor, UiTitleBoxBgColor));

    //
    // Draw help text
    //
    TuiDrawText(UiScreenWidth - 16, 3, /*"F1 for Help"*/"F8 for Options", ATTR(UiTitleBoxFgColor, UiTitleBoxBgColor));

    //
    // Draw title text
    //
    TuiDrawText((UiScreenWidth - (ULONG)strlen(UiTitleBoxTitleText)) / 2,
            2,
            UiTitleBoxTitleText,
            ATTR(UiTitleBoxFgColor, UiTitleBoxBgColor));

    //
    // Update the date & time
    //
    TuiUpdateDateTime();

    VideoCopyOffScreenBufferToVRAM();
}

Referenced by TuiFadeInBackdrop().

TuiDrawBox()

VOID TuiDrawBox	(	ULONG	Left,
		ULONG	Top,
		ULONG	Right,
		ULONG	Bottom,
		UCHAR	VertStyle,
		UCHAR	HorzStyle,
		BOOLEAN	Fill,
		BOOLEAN	Shadow,
		UCHAR	Attr
	)

Definition at line 248 of file tui.c.

{
    UCHAR    ULCorner, URCorner, LLCorner, LRCorner;

    // Calculate the corner values
    if (HorzStyle == HORZ)
    {
        if (VertStyle == VERT)
        {
            ULCorner = UL;
            URCorner = UR;
            LLCorner = LL;
            LRCorner = LR;
        }
        else // VertStyle == D_VERT
        {
            ULCorner = VD_UL;
            URCorner = VD_UR;
            LLCorner = VD_LL;
            LRCorner = VD_LR;
        }
    }
    else // HorzStyle == D_HORZ
    {
        if (VertStyle == VERT)
        {
            ULCorner = HD_UL;
            URCorner = HD_UR;
            LLCorner = HD_LL;
            LRCorner = HD_LR;
        }
        else // VertStyle == D_VERT
        {
            ULCorner = D_UL;
            URCorner = D_UR;
            LLCorner = D_LL;
            LRCorner = D_LR;
        }
    }

    // Fill in box background
    if (Fill)
    {
        TuiFillArea(Left, Top, Right, Bottom, ' ', Attr);
    }

    // Fill in corners
    TuiFillArea(Left, Top, Left, Top, ULCorner, Attr);
    TuiFillArea(Right, Top, Right, Top, URCorner, Attr);
    TuiFillArea(Left, Bottom, Left, Bottom, LLCorner, Attr);
    TuiFillArea(Right, Bottom, Right, Bottom, LRCorner, Attr);

    // Fill in left line
    TuiFillArea(Left, Top+1, Left, Bottom-1, VertStyle, Attr);
    // Fill in top line
    TuiFillArea(Left+1, Top, Right-1, Top, HorzStyle, Attr);
    // Fill in right line
    TuiFillArea(Right, Top+1, Right, Bottom-1, VertStyle, Attr);
    // Fill in bottom line
    TuiFillArea(Left+1, Bottom, Right-1, Bottom, HorzStyle, Attr);

    // Draw the shadow
    if (Shadow)
    {
        TuiDrawShadow(Left, Top, Right, Bottom);
    }
}

Referenced by TuiDrawBackdrop(), TuiDrawProgressBar(), TuiEditBox(), and TuiMessageBoxCritical().

TuiDrawCenteredText()

VOID TuiDrawCenteredText	(	ULONG	Left,
		ULONG	Top,
		ULONG	Right,
		ULONG	Bottom,
		PCSTR	TextString,
		UCHAR	Attr
	)

Definition at line 352 of file tui.c.

{
    SIZE_T    TextLength;
    ULONG    BoxWidth;
    ULONG    BoxHeight;
    ULONG    LineBreakCount;
    SIZE_T    Index;
    SIZE_T    LastIndex;
    ULONG    RealLeft;
    ULONG    RealTop;
    ULONG    X;
    ULONG    Y;
    CHAR    Temp[2];

    TextLength = strlen(TextString);

    // Count the new lines and the box width
    LineBreakCount = 0;
    BoxWidth = 0;
    LastIndex = 0;
    for (Index=0; Index<TextLength; Index++)
    {
        if (TextString[Index] == '\n')
        {
            LastIndex = Index;
            LineBreakCount++;
        }
        else
        {
            if ((Index - LastIndex) > BoxWidth)
            {
                BoxWidth = (ULONG)(Index - LastIndex);
            }
        }
    }

    BoxHeight = LineBreakCount + 1;

    RealLeft = (((Right - Left) - BoxWidth) / 2) + Left;
    RealTop = (((Bottom - Top) - BoxHeight) / 2) + Top;

    LastIndex = 0;
    for (Index=0; Index<TextLength; Index++)
    {
        if (TextString[Index] == '\n')
        {
            RealTop++;
            LastIndex = 0;
        }
        else
        {
            X = (ULONG)(RealLeft + LastIndex);
            Y = RealTop;
            LastIndex++;
            Temp[0] = TextString[Index];
            Temp[1] = 0;
            TuiDrawText(X, Y, Temp, Attr);
        }
    }
}

Referenced by MiniTuiDrawProgressBar(), and TuiDrawProgressBar().

TuiDrawProgressBar()

VOID TuiDrawProgressBar	(	ULONG	Left,
		ULONG	Top,
		ULONG	Right,
		ULONG	Bottom,
		ULONG	Position,
		ULONG	Range,
		PCHAR	ProgressText
	)

Definition at line 663 of file tui.c.

{
    ULONG    i;
    ULONG    ProgressBarWidth = (Right - Left) - 3;

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

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

    // Draw the box
    TuiDrawBox(Left, Top, Right, Bottom, VERT, HORZ, TRUE, TRUE, ATTR(UiMenuFgColor, UiMenuBgColor));

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

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

    // Draw the shadow
    for (; i<ProgressBarWidth; i++)
    {
        TuiDrawText(Left+2+i, Top+2, "\xB2", ATTR(UiTextColor, UiMenuBgColor));
    }

    TuiUpdateDateTime();
    VideoCopyOffScreenBufferToVRAM();
}

Referenced by TuiDrawProgressBarCenter().

TuiDrawProgressBarCenter()

VOID TuiDrawProgressBarCenter	(	ULONG	Position,
		ULONG	Range,
		PCHAR	ProgressText
	)

Definition at line 648 of file tui.c.

{
    ULONG    Left, Top, Right, Bottom;
    ULONG    Width = 50; // Allow for 50 "bars"
    ULONG    Height = 2;

    Left = (UiScreenWidth - Width - 4) / 2;
    Right = Left + Width + 3;
    Top = (UiScreenHeight - Height - 2) / 2;
    Top += 2;
    Bottom = Top + Height + 1;

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

TuiDrawShadow()

VOID TuiDrawShadow	(	ULONG	Left,
		ULONG	Top,
		ULONG	Right,
		ULONG	Bottom
	)

Definition at line 188 of file tui.c.

{
    PUCHAR    ScreenMemory = (PUCHAR)TextVideoBuffer;
    ULONG    Idx;

    // Shade the bottom of the area
    if (Bottom < (UiScreenHeight - 1))
    {
        if (UiScreenHeight < 34)
        {
            Idx=Left + 2;
        }
        else
        {
            Idx=Left + 1;
        }

        for (; Idx<=Right; Idx++)
        {
            ScreenMemory[(((Bottom+1)*2)*UiScreenWidth)+(Idx*2)+1] = ATTR(COLOR_GRAY, COLOR_BLACK);
        }
    }

    // Shade the right of the area
    if (Right < (UiScreenWidth - 1))
    {
        for (Idx=Top+1; Idx<=Bottom; Idx++)
        {
            ScreenMemory[((Idx*2)*UiScreenWidth)+((Right+1)*2)+1] = ATTR(COLOR_GRAY, COLOR_BLACK);
        }
    }
    if (UiScreenHeight < 34)
    {
        if ((Right + 1) < (UiScreenWidth - 1))
        {
            for (Idx=Top+1; Idx<=Bottom; Idx++)
            {
                ScreenMemory[((Idx*2)*UiScreenWidth)+((Right+2)*2)+1] = ATTR(COLOR_GRAY, COLOR_BLACK);
            }
        }
    }

    // Shade the bottom right corner
    if ((Right < (UiScreenWidth - 1)) && (Bottom < (UiScreenHeight - 1)))
    {
        ScreenMemory[(((Bottom+1)*2)*UiScreenWidth)+((Right+1)*2)+1] = ATTR(COLOR_GRAY, COLOR_BLACK);
    }
    if (UiScreenHeight < 34)
    {
        if (((Right + 1) < (UiScreenWidth - 1)) && (Bottom < (UiScreenHeight - 1)))
        {
            ScreenMemory[(((Bottom+1)*2)*UiScreenWidth)+((Right+2)*2)+1] = ATTR(COLOR_GRAY, COLOR_BLACK);
        }
    }
}

Referenced by TuiDrawBox().

TuiDrawStatusText()

VOID TuiDrawStatusText

(

PCSTR

StatusText

)

Definition at line 413 of file tui.c.

{
    SIZE_T    i;

    TuiDrawText(0, UiScreenHeight-1, " ", ATTR(UiStatusBarFgColor, UiStatusBarBgColor));
    TuiDrawText(1, UiScreenHeight-1, StatusText, ATTR(UiStatusBarFgColor, UiStatusBarBgColor));

    for (i=strlen(StatusText)+1; i<UiScreenWidth; i++)
    {
        TuiDrawText((ULONG)i, UiScreenHeight-1, " ", ATTR(UiStatusBarFgColor, UiStatusBarBgColor));
    }

    VideoCopyOffScreenBufferToVRAM();
}

TuiDrawText()

VOID TuiDrawText	(	ULONG	X,
		ULONG	Y,
		PCSTR	Text,
		UCHAR	Attr
	)

Definition at line 320 of file tui.c.

{
    PUCHAR    ScreenMemory = (PUCHAR)TextVideoBuffer;
    ULONG    i, j;

    // Draw the text
    for (i = X, j = 0; Text[j] && i < UiScreenWidth; i++, j++)
    {
        ScreenMemory[((Y*2)*UiScreenWidth)+(i*2)] = (UCHAR)Text[j];
        ScreenMemory[((Y*2)*UiScreenWidth)+(i*2)+1] = Attr;
    }
}

Referenced by MiniTuiDrawProgressBar(), TuiDrawBackdrop(), TuiDrawCenteredText(), TuiDrawProgressBar(), TuiDrawStatusText(), and TuiUpdateDateTime().

TuiDrawText2()

VOID TuiDrawText2	(	ULONG	X,
		ULONG	Y,
		ULONG	MaxNumChars,
		PCSTR	Text,
		UCHAR	Attr
	)

Definition at line 339 of file tui.c.

{
    PUCHAR    ScreenMemory = (PUCHAR)TextVideoBuffer;
    ULONG    i, j;

    // Draw the text
    for (i = X, j = 0; Text[j] && i < UiScreenWidth && (MaxNumChars > 0 ? j < MaxNumChars : TRUE); i++, j++)
    {
        ScreenMemory[((Y*2)*UiScreenWidth)+(i*2)] = (UCHAR)Text[j];
        ScreenMemory[((Y*2)*UiScreenWidth)+(i*2)+1] = Attr;
    }
}

TuiEditBox()

BOOLEAN TuiEditBox	(	PCSTR	MessageText,
		PCHAR	EditTextBuffer,
		ULONG	Length
	)

Definition at line 815 of file tui.c.

{
    INT        width = 8;
    ULONG    height = 1;
    INT        curline = 0;
    INT        k;
    size_t    i , j;
    INT        x1, x2, y1, y2;
    CHAR    temp[260];
    CHAR    key;
    BOOLEAN    Extended;
    INT        EditBoxLine;
    ULONG    EditBoxStartX, EditBoxEndX;
    INT        EditBoxCursorX;
    ULONG    EditBoxTextLength, EditBoxTextPosition;
    INT        EditBoxTextDisplayIndex;
    BOOLEAN    ReturnCode;
    PVOID    ScreenBuffer;

    // Save the screen contents
    ScreenBuffer = FrLdrTempAlloc(UiScreenWidth * UiScreenHeight * 2,
                                  TAG_TUI_SCREENBUFFER);
    TuiSaveScreen(ScreenBuffer);

    // Find the height
    for (i=0; i<strlen(MessageText); i++)
    {
        if (MessageText[i] == '\n')
            height++;
    }

    // Find the width
    for (i=0,j=0,k=0; i<height; i++)
    {
        while ((MessageText[j] != '\n') && (MessageText[j] != 0))
        {
            j++;
            k++;
        }

        if (k > width)
            width = k;

        k = 0;
        j++;
    }

    // Calculate box area
    x1 = (UiScreenWidth - (width+2))/2;
    x2 = x1 + width + 3;
    y1 = ((UiScreenHeight - height - 2)/2) + 1;
    y2 = y1 + height + 4;

    // Draw the box
    TuiDrawBox(x1, y1, x2, y2, D_VERT, D_HORZ, TRUE, TRUE, ATTR(UiMessageBoxFgColor, UiMessageBoxBgColor));

    // Draw the text
    for (i=0,j=0; i<strlen(MessageText)+1; i++)
    {
        if ((MessageText[i] == '\n') || (MessageText[i] == 0))
        {
            temp[j] = 0;
            j = 0;
            UiDrawText(x1+2, y1+1+curline, temp, ATTR(UiMessageBoxFgColor, UiMessageBoxBgColor));
            curline++;
        }
        else
            temp[j++] = MessageText[i];
    }

    EditBoxTextLength = (ULONG)strlen(EditTextBuffer);
    EditBoxTextLength = min(EditBoxTextLength, Length - 1);
    EditBoxTextPosition = 0;
    EditBoxLine = y2 - 2;
    EditBoxStartX = x1 + 3;
    EditBoxEndX = x2 - 3;

    // Draw the edit box background and the text
    UiFillArea(EditBoxStartX, EditBoxLine, EditBoxEndX, EditBoxLine, ' ', ATTR(UiEditBoxTextColor, UiEditBoxBgColor));
    UiDrawText2(EditBoxStartX, EditBoxLine, EditBoxEndX - EditBoxStartX + 1, EditTextBuffer, ATTR(UiEditBoxTextColor, UiEditBoxBgColor));

    // Show the cursor
    EditBoxCursorX = EditBoxStartX;
    MachVideoSetTextCursorPosition(EditBoxCursorX, EditBoxLine);
    MachVideoHideShowTextCursor(TRUE);

    // Draw status text
    UiDrawStatusText("Press ENTER to continue, or ESC to cancel");

    VideoCopyOffScreenBufferToVRAM();

    //
    // Enter the text. Please keep in mind that the default input mode
    // of the edit boxes is in insertion mode, that is, you can insert
    // text without erasing the existing one.
    //
    for (;;)
    {
        if (MachConsKbHit())
        {
            Extended = FALSE;
            key = MachConsGetCh();
            if (key == KEY_EXTENDED)
            {
                Extended = TRUE;
                key = MachConsGetCh();
            }

            if (key == KEY_ENTER)
            {
                ReturnCode = TRUE;
                break;
            }
            else if (key == KEY_ESC)
            {
                ReturnCode = FALSE;
                break;
            }
            else if (key == KEY_BACKSPACE) // Remove a character
            {
                if ( (EditBoxTextLength > 0) && (EditBoxTextPosition > 0) &&
                     (EditBoxTextPosition <= EditBoxTextLength) )
                {
                    EditBoxTextPosition--;
                    memmove(EditTextBuffer + EditBoxTextPosition,
                            EditTextBuffer + EditBoxTextPosition + 1,
                            EditBoxTextLength - EditBoxTextPosition);
                    EditBoxTextLength--;
                    EditTextBuffer[EditBoxTextLength] = 0;
                }
                else
                {
                    MachBeep();
                }
            }
            else if (Extended && key == KEY_DELETE) // Remove a character
            {
                if ( (EditBoxTextLength > 0) &&
                     (EditBoxTextPosition < EditBoxTextLength) )
                {
                    memmove(EditTextBuffer + EditBoxTextPosition,
                            EditTextBuffer + EditBoxTextPosition + 1,
                            EditBoxTextLength - EditBoxTextPosition);
                    EditBoxTextLength--;
                    EditTextBuffer[EditBoxTextLength] = 0;
                }
                else
                {
                    MachBeep();
                }
            }
            else if (Extended && key == KEY_HOME) // Go to the start of the buffer
            {
                EditBoxTextPosition = 0;
            }
            else if (Extended && key == KEY_END) // Go to the end of the buffer
            {
                EditBoxTextPosition = EditBoxTextLength;
            }
            else if (Extended && key == KEY_RIGHT) // Go right
            {
                if (EditBoxTextPosition < EditBoxTextLength)
                    EditBoxTextPosition++;
                else
                    MachBeep();
            }
            else if (Extended && key == KEY_LEFT) // Go left
            {
                if (EditBoxTextPosition > 0)
                    EditBoxTextPosition--;
                else
                    MachBeep();
            }
            else if (!Extended) // Add this key to the buffer
            {
                if ( (EditBoxTextLength   < Length - 1) &&
                     (EditBoxTextPosition < Length - 1) )
                {
                    memmove(EditTextBuffer + EditBoxTextPosition + 1,
                            EditTextBuffer + EditBoxTextPosition,
                            EditBoxTextLength - EditBoxTextPosition);
                    EditTextBuffer[EditBoxTextPosition] = key;
                    EditBoxTextPosition++;
                    EditBoxTextLength++;
                    EditTextBuffer[EditBoxTextLength] = 0;
                }
                else
                {
                    MachBeep();
                }
            }
            else
            {
                MachBeep();
            }
        }

        // Draw the edit box background
        UiFillArea(EditBoxStartX, EditBoxLine, EditBoxEndX, EditBoxLine, ' ', ATTR(UiEditBoxTextColor, UiEditBoxBgColor));

        // Fill the text in
        if (EditBoxTextPosition > (EditBoxEndX - EditBoxStartX))
        {
            EditBoxTextDisplayIndex = EditBoxTextPosition - (EditBoxEndX - EditBoxStartX);
            EditBoxCursorX = EditBoxEndX;
        }
        else
        {
            EditBoxTextDisplayIndex = 0;
            EditBoxCursorX = EditBoxStartX + EditBoxTextPosition;
        }
        UiDrawText2(EditBoxStartX, EditBoxLine, EditBoxEndX - EditBoxStartX + 1, &EditTextBuffer[EditBoxTextDisplayIndex], ATTR(UiEditBoxTextColor, UiEditBoxBgColor));

        // Move the cursor
        MachVideoSetTextCursorPosition(EditBoxCursorX, EditBoxLine);

        TuiUpdateDateTime();

        VideoCopyOffScreenBufferToVRAM();

        MachHwIdle();
    }

    // Hide the cursor again
    MachVideoHideShowTextCursor(FALSE);

    // Restore the screen contents
    TuiRestoreScreen(ScreenBuffer);
    FrLdrTempFree(ScreenBuffer, TAG_TUI_SCREENBUFFER);

    return ReturnCode;
}

TuiFadeInBackdrop()

VOID TuiFadeInBackdrop

(

VOID

)

Definition at line 759 of file tui.c.

{
    PPALETTE_ENTRY TuiFadePalette = NULL;

    if (UiUseSpecialEffects && ! MachVideoIsPaletteFixed())
    {
        TuiFadePalette = (PPALETTE_ENTRY)FrLdrTempAlloc(sizeof(PALETTE_ENTRY) * 64,
                                                        TAG_TAG_TUI_PALETTE);

        if (TuiFadePalette != NULL)
        {
            VideoSavePaletteState(TuiFadePalette, 64);
            VideoSetAllColorsToBlack(64);
        }
    }

    // Draw the backdrop and title box
    TuiDrawBackdrop();

    if (UiUseSpecialEffects && ! MachVideoIsPaletteFixed() && TuiFadePalette != NULL)
    {
        VideoFadeIn(TuiFadePalette, 64);
        FrLdrTempFree(TuiFadePalette, TAG_TAG_TUI_PALETTE);
    }
}

TuiFadeOut()

VOID TuiFadeOut

(

VOID

)

Definition at line 785 of file tui.c.

{
    PPALETTE_ENTRY TuiFadePalette = NULL;

    if (UiUseSpecialEffects && ! MachVideoIsPaletteFixed())
    {
        TuiFadePalette = (PPALETTE_ENTRY)FrLdrTempAlloc(sizeof(PALETTE_ENTRY) * 64,
                                                        TAG_TAG_TUI_PALETTE);

        if (TuiFadePalette != NULL)
        {
            VideoSavePaletteState(TuiFadePalette, 64);
        }
    }

    if (UiUseSpecialEffects && ! MachVideoIsPaletteFixed() && TuiFadePalette != NULL)
    {
        VideoFadeOut(64);
    }

    MachVideoSetDisplayMode(NULL, FALSE);

    if (UiUseSpecialEffects && ! MachVideoIsPaletteFixed() && TuiFadePalette != NULL)
    {
        VideoRestorePaletteState(TuiFadePalette, 64);
        FrLdrTempFree(TuiFadePalette, TAG_TAG_TUI_PALETTE);
    }

}

Referenced by TuiUnInitialize().

TuiFillArea()

VOID TuiFillArea	(	ULONG	Left,
		ULONG	Top,
		ULONG	Right,
		ULONG	Bottom,
		CHAR	FillChar,
		UCHAR	Attr
	)

Definition at line 153 of file tui.c.

{
    PUCHAR    ScreenMemory = (PUCHAR)TextVideoBuffer;
    ULONG    i, j;

    // Clip the area to the screen
    if ((Left >= UiScreenWidth) || (Top >= UiScreenHeight))
    {
        return;
    }
    if (Right >= UiScreenWidth)
    {
        Right = UiScreenWidth - 1;
    }
    if (Bottom >= UiScreenHeight)
    {
        Bottom = UiScreenHeight - 1;
    }

    // Loop through each line and fill it in
    for (i=Top; i<=Bottom; i++)
    {
        // Loop through each character (column) in the line and fill it in
        for (j=Left; j<=Right; j++)
        {
            ScreenMemory[((i*2)*UiScreenWidth)+(j*2)] = (UCHAR)FillChar;
            ScreenMemory[((i*2)*UiScreenWidth)+(j*2)+1] = Attr;
        }
    }
}

Referenced by MiniTuiDrawBackdrop(), TuiDrawBackdrop(), and TuiDrawBox().

TuiInitialize()

BOOLEAN TuiInitialize

(

VOID

)

Definition at line 52 of file tui.c.

{
    MachVideoHideShowTextCursor(FALSE);
    MachVideoSetTextCursorPosition(0, 0);
    MachVideoClearScreen(ATTR(COLOR_GRAY, COLOR_BLACK));

    TextVideoBuffer = VideoAllocateOffScreenBuffer();
    if (TextVideoBuffer == NULL)
    {
        return FALSE;
    }

    return TRUE;
}

TuiMessageBox()

VOID TuiMessageBox

(

PCSTR

MessageText

)

Definition at line 545 of file tui.c.

{
    PVOID    ScreenBuffer;

    // Save the screen contents
    ScreenBuffer = FrLdrTempAlloc(UiScreenWidth * UiScreenHeight * 2,
                                  TAG_TUI_SCREENBUFFER);
    TuiSaveScreen(ScreenBuffer);

    // Display the message box
    TuiMessageBoxCritical(MessageText);

    // Restore the screen contents
    TuiRestoreScreen(ScreenBuffer);
    FrLdrTempFree(ScreenBuffer, TAG_TUI_SCREENBUFFER);
}

TuiMessageBoxCritical()

VOID TuiMessageBoxCritical

(

PCSTR

MessageText

)

Definition at line 562 of file tui.c.

{
    int        width = 8;
    unsigned int    height = 1;
    int        curline = 0;
    int        k;
    size_t        i , j;
    int        x1, x2, y1, y2;
    char    temp[260];
    char    key;

    // Find the height
    for (i=0; i<strlen(MessageText); i++)
    {
        if (MessageText[i] == '\n')
            height++;
    }

    // Find the width
    for (i=0,j=0,k=0; i<height; i++)
    {
        while ((MessageText[j] != '\n') && (MessageText[j] != 0))
        {
            j++;
            k++;
        }

        if (k > width)
            width = k;

        k = 0;
        j++;
    }

    // Calculate box area
    x1 = (UiScreenWidth - (width+2))/2;
    x2 = x1 + width + 3;
    y1 = ((UiScreenHeight - height - 2)/2) + 1;
    y2 = y1 + height + 4;

    // Draw the box
    TuiDrawBox(x1, y1, x2, y2, D_VERT, D_HORZ, TRUE, TRUE, ATTR(UiMessageBoxFgColor, UiMessageBoxBgColor));

    // Draw the text
    for (i=0,j=0; i<strlen(MessageText)+1; i++)
    {
        if ((MessageText[i] == '\n') || (MessageText[i] == 0))
        {
            temp[j] = 0;
            j = 0;
            UiDrawText(x1+2, y1+1+curline, temp, ATTR(UiMessageBoxFgColor, UiMessageBoxBgColor));
            curline++;
        }
        else
            temp[j++] = MessageText[i];
    }

    // Draw OK button
    strcpy(temp, "   OK   ");
    UiDrawText(x1+((x2-x1)/2)-3, y2-2, temp, ATTR(COLOR_BLACK, COLOR_GRAY));

    // Draw status text
    UiDrawStatusText("Press ENTER to continue");

    VideoCopyOffScreenBufferToVRAM();

    for (;;)
    {
        if (MachConsKbHit())
        {
            key = MachConsGetCh();
            if (key == KEY_EXTENDED)
                key = MachConsGetCh();

            if ((key == KEY_ENTER) || (key == KEY_SPACE) || (key == KEY_ESC))
                break;
        }

        TuiUpdateDateTime();

        VideoCopyOffScreenBufferToVRAM();

        MachHwIdle();
    }
}

Referenced by TuiMessageBox().

TuiPrintf()

int TuiPrintf	(	const char *	Format,
			...
	)

Definition at line 31 of file tui.c.

{
    int i;
    int Length;
    va_list ap;
    CHAR Buffer[512];

    va_start(ap, Format);
    Length = _vsnprintf(Buffer, sizeof(Buffer), Format, ap);
    va_end(ap);

    if (Length == -1) Length = sizeof(Buffer);

    for (i = 0; i < Length; i++)
    {
        MachConsPutChar(Buffer[i]);
    }

    return Length;
}

Referenced by MachInit().

TuiRestoreScreen()

VOID TuiRestoreScreen

(

PUCHAR

Buffer

)

Definition at line 534 of file tui.c.

{
    PUCHAR    ScreenMemory = (PUCHAR)TextVideoBuffer;
    ULONG    i;

    for (i=0; i < (UiScreenWidth * UiScreenHeight * 2); i++)
    {
        ScreenMemory[i] = Buffer[i];
    }
}

Referenced by TuiEditBox(), and TuiMessageBox().

TuiSaveScreen()

VOID TuiSaveScreen

(

PUCHAR

Buffer

)

Definition at line 523 of file tui.c.

{
    PUCHAR    ScreenMemory = (PUCHAR)TextVideoBuffer;
    ULONG    i;

    for (i=0; i < (UiScreenWidth * UiScreenHeight * 2); i++)
    {
        Buffer[i] = ScreenMemory[i];
    }
}

Referenced by TuiEditBox(), and TuiMessageBox().

TuiTextToColor()

UCHAR TuiTextToColor

(

PCSTR

ColorText

)

Definition at line 700 of file tui.c.

{
    static const struct
    {
        PCSTR ColorName;
        UCHAR ColorValue;
    } Colors[] =
    {
        {"Black"  , COLOR_BLACK  },
        {"Blue"   , COLOR_BLUE   },
        {"Green"  , COLOR_GREEN  },
        {"Cyan"   , COLOR_CYAN   },
        {"Red"    , COLOR_RED    },
        {"Magenta", COLOR_MAGENTA},
        {"Brown"  , COLOR_BROWN  },
        {"Gray"   , COLOR_GRAY   },
        {"DarkGray"    , COLOR_DARKGRAY    },
        {"LightBlue"   , COLOR_LIGHTBLUE   },
        {"LightGreen"  , COLOR_LIGHTGREEN  },
        {"LightCyan"   , COLOR_LIGHTCYAN   },
        {"LightRed"    , COLOR_LIGHTRED    },
        {"LightMagenta", COLOR_LIGHTMAGENTA},
        {"Yellow"      , COLOR_YELLOW      },
        {"White"       , COLOR_WHITE       },
    };
    ULONG i;

    for (i = 0; i < sizeof(Colors)/sizeof(Colors[0]); ++i)
    {
        if (_stricmp(ColorText, Colors[i].ColorName) == 0)
            return Colors[i].ColorValue;
    }

    return COLOR_BLACK;
}

TuiTextToFillStyle()

UCHAR TuiTextToFillStyle

(

PCSTR

FillStyleText

)

Definition at line 736 of file tui.c.

{
    static const struct
    {
        PCSTR FillStyleName;
        UCHAR FillStyleValue;
    } FillStyles[] =
    {
        {"Light" , LIGHT_FILL },
        {"Medium", MEDIUM_FILL},
        {"Dark"  , DARK_FILL  },
    };
    ULONG i;

    for (i = 0; i < sizeof(FillStyles)/sizeof(FillStyles[0]); ++i)
    {
        if (_stricmp(FillStyleText, FillStyles[i].FillStyleName) == 0)
            return FillStyles[i].FillStyleValue;
    }

    return LIGHT_FILL;
}

TuiUnInitialize()

VOID TuiUnInitialize

(

VOID

)

Definition at line 67 of file tui.c.

{
    if (UiUseSpecialEffects)
    {
        TuiFadeOut();
    }
    else
    {
        MachVideoSetDisplayMode(NULL, FALSE);
    }

    MachVideoClearScreen(ATTR(COLOR_GRAY, COLOR_BLACK));
    MachVideoSetTextCursorPosition(0, 0);
    MachVideoHideShowTextCursor(TRUE);
}

TuiUpdateDateTime()

VOID TuiUpdateDateTime

(

VOID

)

Definition at line 428 of file tui.c.

{
    TIMEINFO*    TimeInfo;
    char    DateString[40];
    CHAR    TimeString[40];
    CHAR    TempString[20];
    BOOLEAN    PMHour = FALSE;

    /* Don't draw the time if this has been disabled */
    if (!UiDrawTime) return;

    TimeInfo = ArcGetTime();
    if (TimeInfo->Year < 1 || 9999 < TimeInfo->Year ||
        TimeInfo->Month < 1 || 12 < TimeInfo->Month ||
        TimeInfo->Day < 1 || 31 < TimeInfo->Day ||
        23 < TimeInfo->Hour ||
        59 < TimeInfo->Minute ||
        59 < TimeInfo->Second)
    {
        /* This happens on QEmu sometimes. We just skip updating */
        return;
    }
    // Get the month name
    strcpy(DateString, UiMonthNames[TimeInfo->Month - 1]);
    // Get the day
    _itoa(TimeInfo->Day, TempString, 10);
    // Get the day postfix
    if (1 == TimeInfo->Day || 21 == TimeInfo->Day || 31 == TimeInfo->Day)
    {
        strcat(TempString, "st");
    }
    else if (2 == TimeInfo->Day || 22 == TimeInfo->Day)
    {
        strcat(TempString, "nd");
    }
    else if (3 == TimeInfo->Day || 23 == TimeInfo->Day)
    {
        strcat(TempString, "rd");
    }
    else
    {
        strcat(TempString, "th");
    }

    // Add the day to the date
    strcat(DateString, TempString);
    strcat(DateString, " ");

    // Get the year and add it to the date
    _itoa(TimeInfo->Year, TempString, 10);
    strcat(DateString, TempString);

    // Draw the date
    TuiDrawText(UiScreenWidth-(ULONG)strlen(DateString)-2, 1, DateString, ATTR(UiTitleBoxFgColor, UiTitleBoxBgColor));

    // Get the hour and change from 24-hour mode to 12-hour
    if (TimeInfo->Hour > 12)
    {
        TimeInfo->Hour -= 12;
        PMHour = TRUE;
    }
    if (TimeInfo->Hour == 0)
    {
        TimeInfo->Hour = 12;
    }
    _itoa(TimeInfo->Hour, TempString, 10);
    strcpy(TimeString, "    ");
    strcat(TimeString, TempString);
    strcat(TimeString, ":");
    _itoa(TimeInfo->Minute, TempString, 10);
    if (TimeInfo->Minute < 10)
    {
        strcat(TimeString, "0");
    }
    strcat(TimeString, TempString);
    strcat(TimeString, ":");
    _itoa(TimeInfo->Second, TempString, 10);
    if (TimeInfo->Second < 10)
    {
        strcat(TimeString, "0");
    }
    strcat(TimeString, TempString);
    if (PMHour)
    {
        strcat(TimeString, " PM");
    }
    else
    {
        strcat(TimeString, " AM");
    }

    // Draw the time
    TuiDrawText(UiScreenWidth-(ULONG)strlen(TimeString)-2, 2, TimeString, ATTR(UiTitleBoxFgColor, UiTitleBoxBgColor));
}

Referenced by MiniTuiDrawProgressBar(), TuiDisplayMenu(), TuiDrawBackdrop(), TuiDrawProgressBar(), TuiEditBox(), and TuiMessageBoxCritical().

Variable Documentation

TextVideoBuffer

PVOID TextVideoBuffer = NULL

Definition at line 25 of file tui.c.

Referenced by TuiDrawShadow(), TuiDrawText(), TuiDrawText2(), TuiFillArea(), TuiInitialize(), TuiRestoreScreen(), and TuiSaveScreen().

TuiVtbl

const UIVTBL TuiVtbl

Initial value:

=
{
    TuiInitialize,
    TuiUnInitialize,
    TuiDrawBackdrop,
    TuiFillArea,
    TuiDrawShadow,
    TuiDrawBox,
    TuiDrawText,
    TuiDrawText2,
    TuiDrawCenteredText,
    TuiDrawStatusText,
    TuiUpdateDateTime,
    TuiMessageBox,
    TuiMessageBoxCritical,
    TuiDrawProgressBarCenter,
    TuiDrawProgressBar,
    TuiEditBox,
    TuiTextToColor,
    TuiTextToFillStyle,
    TuiFadeInBackdrop,
    TuiFadeOut,
    TuiDisplayMenu,
    TuiDrawMenu,
}

Definition at line 1048 of file tui.c.

Referenced by UiInitialize().