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mars-flaim/xflaim/util/viewmenu.cpp
ahodgkinson 12a621dc04 Changed license to LGPL. 
git-svn-id: https://svn.code.sf.net/p/flaim/code/trunk@1010 0109f412-320b-0410-ab79-c3e0c5ffbbe6
2007-01-23 11:22:22 +00:00

1329 lines
34 KiB
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//------------------------------------------------------------------------------
// Desc: This file contains the routines which initialize and setup
// menus in the VIEW program.
// Tabs: 3
//
// Copyright (c) 1992-1995, 1998-2000, 2002-2007 Novell, Inc.
// All Rights Reserved.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; version 2.1
// of the License.
//
// This library 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
// Library Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, contact Novell, Inc.
//
// To contact Novell about this file by physical or electronic mail,
// you may find current contact information at www.novell.com.
//
// $Id$
//------------------------------------------------------------------------------
#include "view.h"
// These variables are for displaying date and time
FSTATIC char * Months[] = {
"Jan",
"Feb",
"Mar",
"Apr",
"May",
"Jun",
"Jul",
"Aug",
"Sep",
"Oct",
"Nov",
"Dec"
};
// Local Function Prototypes
FSTATIC void ViewDispMenuItem(
VIEW_MENU_ITEM_p pMenuItem);
FSTATIC void ViewRefreshMenu(
VIEW_MENU_ITEM_p pPrevItem);
FSTATIC void UpdateHorizCursor(
FLMBOOL bOnFlag);
FSTATIC void DoUpArrow( void);
FSTATIC void DoDownArrow( void);
FSTATIC void DoPageDown( void);
FSTATIC void DoPageUp( void);
FSTATIC void DoHome( void);
FSTATIC void DoEnd( void);
FSTATIC void DoRightArrow( void);
FSTATIC void DoLeftArrow( void);
FSTATIC void ByteToHex(
FLMBYTE ucChar,
char * pszDestBuf,
FLMBOOL bUpperCaseFlag);
FSTATIC void ViewHelpScreen( void);
extern FLMUINT gv_uiTopLine;
extern FLMUINT gv_uiBottomLine;
/***************************************************************************
Desc: This routine frees the memory used to hold menu items.
*****************************************************************************/
void ViewFreeMenuMemory( void)
{
if (gv_pViewMenuFirstItem)
{
gv_pViewPool->poolFree();
gv_pViewMenuFirstItem = NULL;
gv_pViewMenuLastItem = NULL;
gv_pViewMenuCurrItem = NULL;
}
}
/***************************************************************************
Desc: This routine initializes variables to start a new menu.
*****************************************************************************/
void ViewMenuInit(
const char * pszTitle)
{
FLMUINT uiCol;
// Clear the screen and display the menu title
f_conSetBackFore( FLM_BLACK, FLM_WHITE);
f_conClearScreen( 0, 0);
// Display the title in the middle of the top line of the screen
uiCol = (80 - f_strlen( pszTitle)) / 2;
f_conStrOutXY( pszTitle, uiCol, 0);
ViewUpdateDate( TRUE, &gv_ViewLastTime);
// Deallocate any old memory, if any
ViewFreeMenuMemory();
}
/***************************************************************************
Desc: This routine converts a FLMBYTE value to two ASCII Hex characters.
*****************************************************************************/
FSTATIC void ByteToHex(
FLMBYTE ucChar,
char * pszDestBuf,
FLMBOOL bUpperCaseFlag
)
{
FLMBYTE ucTempChar;
// Convert the upper four bits
if ((ucTempChar = ((ucChar & 0xF0) >> 4)) <= 9)
{
*pszDestBuf = '0' + ucTempChar;
}
else if (bUpperCaseFlag)
{
*pszDestBuf = 'A' + ucTempChar - 10;
}
else
{
*pszDestBuf = 'a' + ucTempChar - 10;
}
pszDestBuf++;
// Convert the lower four bits
if ((ucTempChar = (ucChar & 0x0F)) <= 9)
{
*pszDestBuf = '0' + ucTempChar;
}
else if (bUpperCaseFlag)
{
*pszDestBuf = 'A' + ucTempChar - 10;
}
else
{
*pszDestBuf = 'a' + ucTempChar - 10;
}
pszDestBuf++;
// Terminate with a NULL character
*pszDestBuf = 0;
}
/***************************************************************************
Desc: This routine displays a menu item on the screen.
*****************************************************************************/
FSTATIC void ViewDispMenuItem(
VIEW_MENU_ITEM_p pMenuItem
)
{
FLMUINT uiRow;
FLMUINT uiCol = pMenuItem->uiCol;
FLMUINT uiLoop;
char szTempBuf [80];
if (!gv_bViewEnabled)
{
return;
}
// Calculate row and column where the item is to be displayed
uiRow = gv_uiTopLine + (pMenuItem->uiRow - gv_uiViewTopRow);
// If it is a HEX display, output the address first
if ((pMenuItem->uiValueType & 0x0F) == VAL_IS_BINARY_HEX)
{
f_sprintf( (char *)szTempBuf, "%03u:%08X",
(unsigned)pMenuItem->uiModFileNumber,
(unsigned)pMenuItem->uiModFileOffset);
f_conSetBackFore( FLM_WHITE, FLM_GREEN);
f_conStrOutXY( szTempBuf, 0, uiRow);
}
// If the item is the current item, display it using the
// select colors. Otherwise, display using the unselect colors
if (pMenuItem->uiItemNum == gv_uiViewMenuCurrItemNum)
{
if (!gv_pViewMenuCurrItem)
{
gv_pViewMenuCurrItem = pMenuItem;
}
if (pMenuItem->uiOption)
{
f_conSetBackFore( pMenuItem->uiSelectBackColor,
pMenuItem->uiSelectForeColor);
}
else
{
f_conSetBackFore( pMenuItem->uiUnselectForeColor,
pMenuItem->uiUnselectBackColor);
}
}
else
{
f_conSetBackFore( pMenuItem->uiUnselectBackColor,
pMenuItem->uiUnselectForeColor);
}
if (pMenuItem->iLabelIndex < 0)
{
uiCol += (pMenuItem->uiLabelWidth + 1);
szTempBuf[ 0] = 0;
}
else if (!pMenuItem->uiLabelWidth)
{
f_strcpy( szTempBuf, Labels[ pMenuItem->iLabelIndex]);
f_strcpy( &szTempBuf[ f_strlen( szTempBuf)], " ");
}
else
{
for( uiLoop = 0; uiLoop < pMenuItem->uiLabelWidth; uiLoop++)
{
szTempBuf[ uiLoop] = '.';
}
szTempBuf[ pMenuItem->uiLabelWidth] = ' ';
szTempBuf[ pMenuItem->uiLabelWidth + 1] = 0;
f_memcpy( szTempBuf, Labels[ pMenuItem->iLabelIndex],
(FLMSIZET)f_strlen( Labels[ pMenuItem->iLabelIndex]));
}
if (pMenuItem->uiOption)
{
if (pMenuItem->uiItemNum == gv_uiViewMenuCurrItemNum)
{
f_conStrOutXY( "*>", (uiCol - 2), uiRow);
}
else
{
f_conStrOutXY( "* ", (uiCol - 2), uiRow);
}
}
else
{
if (pMenuItem->uiItemNum == gv_uiViewMenuCurrItemNum)
{
f_conStrOutXY( " >", (uiCol - 2), uiRow);
}
else
{
f_conStrOutXY( " ", (uiCol - 2), uiRow);
}
}
if (szTempBuf[ 0])
{
f_conStrOutXY( szTempBuf, uiCol, uiRow);
}
// Now output the value
uiCol += f_strlen( szTempBuf);
switch (pMenuItem->uiValueType & 0x0F)
{
case VAL_IS_LABEL_INDEX:
f_conStrOutXY( (Labels[ pMenuItem->ui64Value]),
uiCol, uiRow);
break;
case VAL_IS_ERR_INDEX:
{
FLMUINT ValIndex = (FLMUINT)pMenuItem->ui64Value;
f_conStrOutXY( gv_pDbSystem->checkErrorToStr( ValIndex),
uiCol, uiRow);
break;
}
case VAL_IS_TEXT_PTR:
f_conStrOutXY( ((char *)(FLMUINT)pMenuItem->ui64Value), uiCol, uiRow);
break;
case VAL_IS_BINARY_HEX:
case VAL_IS_BINARY_PTR:
{
FLMUINT uiBytesPerLine = MAX_HORIZ_SIZE( uiCol);
FLMUINT uiBytesProcessed = 0;
FLMUINT uiLoopJ;
FLMUINT uiLoopK;
FLMUINT uiNumBytes;
FLMBYTE * pucVal = (FLMBYTE *)(FLMUINT)pMenuItem->ui64Value;
FLMUINT uiValLen = pMenuItem->uiValueLen;
// Process each character in the value
uiLoop = 0;
uiLoopJ = 0;
uiLoopK = uiBytesPerLine * 3 + 5;
uiNumBytes = 0;
// Fill up a single line with whatever will fit on the line in
// hex format.
f_memset( szTempBuf, ' ', 80);
szTempBuf[ uiLoopK - 3] = '|';
while (uiBytesProcessed < uiValLen && uiLoop < uiBytesPerLine)
{
ByteToHex( pucVal[ uiBytesProcessed], &szTempBuf[ uiLoopJ], TRUE);
if (pucVal[ uiBytesProcessed] > ' ' &&
pucVal[ uiBytesProcessed] <= 127)
{
szTempBuf [uiLoopK] = pucVal [uiBytesProcessed];
}
else
{
szTempBuf [uiLoopK] = '.';
}
uiLoopK++;
uiNumBytes++;
uiBytesProcessed++;
uiLoop++;
uiLoopJ += 2;
szTempBuf [uiLoopJ] = ' ';
uiLoopJ++;
}
szTempBuf [uiLoopK] = 0;
// Output the line
f_conStrOutXY( szTempBuf, uiCol, uiRow);
if (pMenuItem->uiItemNum == gv_uiViewMenuCurrItemNum)
{
UpdateHorizCursor( TRUE);
}
break;
}
case VAL_IS_NUMBER:
switch (pMenuItem->uiValueType & 0xF0)
{
case DISP_DECIMAL:
f_sprintf( (char *)szTempBuf, "%I64u", pMenuItem->ui64Value);
break;
case DISP_HEX:
if (pMenuItem->ui64Value == 0xFFFFFFFF)
{
f_strcpy( szTempBuf, "None");
}
else if (pMenuItem->ui64Value == 0)
{
f_strcpy( szTempBuf, "0");
}
else
{
szTempBuf [0] = '0';
szTempBuf [1] = 'x';
f_sprintf( (char *)&szTempBuf[ 2], "%I64X",
pMenuItem->ui64Value);
}
break;
case DISP_DECIMAL_HEX:
f_sprintf( (char *)szTempBuf, "%I64u (0x%I64X)",
pMenuItem->ui64Value, pMenuItem->ui64Value);
break;
case DISP_HEX_DECIMAL:
default:
if (pMenuItem->ui64Value == 0xFFFFFFFF)
{
f_strcpy( szTempBuf, "None");
}
else if (pMenuItem->ui64Value == 0)
{
f_strcpy( szTempBuf, "0");
}
else
{
f_sprintf( (char *)szTempBuf, "0x%I64X (%I64u)",
pMenuItem->ui64Value, pMenuItem->ui64Value);
}
break;
}
f_conStrOutXY( szTempBuf, uiCol, uiRow);
break;
case VAL_IS_EMPTY:
default:
break;
}
}
/***************************************************************************
Desc: This routine adds a menu item to the item list.
*****************************************************************************/
FLMBOOL ViewAddMenuItem(
FLMINT iLabelIndex,
FLMUINT uiLabelWidth,
FLMUINT uiValueType,
FLMUINT64 ui64Value,
FLMUINT uiValueLen,
FLMUINT uiModFileNumber,
FLMUINT uiModFileOffset,
FLMUINT uiModBufLen,
FLMUINT uiModType,
FLMUINT uiCol,
FLMUINT uiRow,
FLMUINT uiOption,
eColorType uiUnselectBackColor,
eColorType uiUnselectForeColor,
eColorType uiSelectBackColor,
eColorType uiSelectForeColor)
{
FLMBOOL bOk = FALSE;
VIEW_MENU_ITEM_p pMenuItem;
FLMUINT uiSize = sizeof( VIEW_MENU_ITEM);
// Allocate the memory for the item
if ((uiValueType & 0x0F) == VAL_IS_TEXT_PTR)
{
uiSize += (f_strlen( (const char *)((FLMUINT)ui64Value)) + 1);
}
else if ((uiValueType & 0x0F) == VAL_IS_BINARY)
{
uiSize += uiValueLen;
}
if (RC_BAD( gv_pViewPool->poolAlloc(uiSize, (void **)&pMenuItem)))
{
ViewShowError( "Could not allocate memory for menu value");
goto Exit;
}
// Link the item into the array and set some values in the item
pMenuItem->pNextItem = NULL;
pMenuItem->pPrevItem = gv_pViewMenuLastItem;
if (gv_pViewMenuLastItem)
{
gv_pViewMenuLastItem->pNextItem = pMenuItem;
pMenuItem->uiItemNum = gv_pViewMenuLastItem->uiItemNum + 1;
}
else
{
gv_pViewMenuFirstItem = pMenuItem;
pMenuItem->uiItemNum = 0;
}
gv_pViewMenuLastItem = pMenuItem;
pMenuItem->iLabelIndex = iLabelIndex;
pMenuItem->uiLabelWidth = uiLabelWidth;
pMenuItem->uiValueType = uiValueType;
if ((uiValueType & 0x0F) == VAL_IS_TEXT_PTR)
{
pMenuItem->ui64Value = (FLMUINT64)((FLMUINT)&pMenuItem[ 1]);
f_strcpy( (char *)(FLMUINT)pMenuItem->ui64Value,
(const char *)(FLMUINT)ui64Value);
}
else if ((uiValueType & 0x0F) == VAL_IS_BINARY)
{
pMenuItem->uiValueType = VAL_IS_BINARY_PTR;
pMenuItem->ui64Value = (FLMUINT64)((FLMUINT)&pMenuItem[ 1]);
f_memcpy( (void *)(FLMUINT)pMenuItem->ui64Value,
(void *)(FLMUINT)ui64Value, uiValueLen);
}
else
{
pMenuItem->ui64Value = ui64Value;
}
pMenuItem->uiValueLen = uiValueLen;
pMenuItem->uiModFileOffset = uiModFileOffset;
pMenuItem->uiModFileNumber = uiModFileNumber;
pMenuItem->uiModBufLen = uiModBufLen;
pMenuItem->uiModType = uiModType;
pMenuItem->uiCol = uiCol;
pMenuItem->uiRow = uiRow;
pMenuItem->uiOption = uiOption;
pMenuItem->uiUnselectBackColor = uiUnselectBackColor;
pMenuItem->uiUnselectForeColor = uiUnselectForeColor;
pMenuItem->uiSelectBackColor = uiSelectBackColor;
pMenuItem->uiSelectForeColor = uiSelectForeColor;
pMenuItem->uiHorizCurPos = 0;
if (pMenuItem->uiRow >= gv_uiViewTopRow &&
pMenuItem->uiRow <= gv_uiViewBottomRow)
{
ViewDispMenuItem( pMenuItem);
}
bOk = TRUE;
Exit:
return( bOk);
}
/***************************************************************************
Desc: This routine displays the prompt to press ESCAPE. This prompt
appears at the bottom of every screen.
*****************************************************************************/
void ViewEscPrompt( void)
{
FLMUINT uiNumCols;
FLMUINT uiNumRows;
f_conGetScreenSize( &uiNumCols, &uiNumRows);
f_conSetBackFore( FLM_BLACK, FLM_WHITE);
f_conClearScreen( 0, uiNumRows - 1);
f_conSetBackFore( FLM_RED, FLM_WHITE);
f_conStrOutXY( "ESC=Exit, ?=Help", 0, uiNumRows - 1);
f_conSetBackFore( FLM_BLACK, FLM_WHITE);
f_conStrOutXY( "File: ", 20, uiNumRows - 1);
f_conStrOutXY( gv_szViewFileName, 26, uiNumRows - 1);
gv_uiViewLastFileOffset = VIEW_INVALID_FILE_OFFSET;
}
/***************************************************************************
Desc: This routine refreshes the menu display. If NULL is passed in
the entire screen is refreshed. Otherwise, the item passed as
well as the current item are refreshed.
*****************************************************************************/
FSTATIC void ViewRefreshMenu(
VIEW_MENU_ITEM_p pPrevItem
)
{
VIEW_MENU_ITEM_p pMenuItem;
gv_uiViewMenuCurrItemNum = gv_pViewMenuCurrItem->uiItemNum;
if (pPrevItem)
{
ViewDispMenuItem( pPrevItem);
ViewDispMenuItem( gv_pViewMenuCurrItem);
}
else
{
// Refresh the entire screen
f_conSetBackFore( FLM_BLACK, FLM_WHITE);
f_conClearScreen( 0, 1);
pMenuItem = gv_pViewMenuFirstItem;
while( pMenuItem)
{
if (pMenuItem->uiRow >= gv_uiViewTopRow &&
pMenuItem->uiRow <= gv_uiViewBottomRow)
{
ViewDispMenuItem( pMenuItem);
}
pMenuItem = pMenuItem->pNextItem;
}
ViewEscPrompt();
}
}
/********************************************************************
Desc: Update the horizontal cursor
*********************************************************************/
FSTATIC void UpdateHorizCursor(
FLMBOOL bOnFlag
)
{
unsigned char szTempBuf[ 4];
FLMUINT uiLoop;
FLMUINT uiRow;
FLMUINT uiCol = gv_pViewMenuCurrItem->uiCol + 1;
FLMBYTE * pucVal = ((FLMBYTE *)(FLMUINT)gv_pViewMenuCurrItem->ui64Value);
if (gv_pViewMenuCurrItem->uiHorizCurPos >
HORIZ_SIZE( gv_pViewMenuCurrItem) - 1)
{
gv_pViewMenuCurrItem->uiHorizCurPos =
HORIZ_SIZE( gv_pViewMenuCurrItem) - 1;
}
uiLoop = gv_pViewMenuCurrItem->uiHorizCurPos;
ByteToHex( *(pucVal + uiLoop), (char *)szTempBuf, TRUE);
szTempBuf[ 2] = 0;
if (bOnFlag)
{
f_conSetBackFore( FLM_RED, FLM_WHITE);
}
else
{
f_conSetBackFore( gv_pViewMenuCurrItem->uiUnselectForeColor,
gv_pViewMenuCurrItem->uiUnselectBackColor);
}
// Calculate row and column where the item is to be displayed
uiRow = gv_uiTopLine + (gv_pViewMenuCurrItem->uiRow - gv_uiViewTopRow);
f_conStrOutXY( (char *)szTempBuf, (uiCol + uiLoop * 3), uiRow);
if (((szTempBuf[ 0] = pucVal[ uiLoop]) < ' ') ||
(szTempBuf[ 0] > 127))
{
szTempBuf[ 0] = ' ';
}
#if defined( FLM_WIN)
if (bOnFlag)
{
szTempBuf [0] = 128;
}
#endif
szTempBuf[ 1] = 0;
f_conStrOutXY( (char *)szTempBuf,
(uiCol + MAX_HORIZ_SIZE( uiCol) * 3 + 5 + uiLoop), uiRow);
f_conSetBackFore( gv_pViewMenuCurrItem->uiUnselectForeColor,
gv_pViewMenuCurrItem->uiUnselectBackColor);
if (bOnFlag)
{
f_conStrOutXY( ">", (uiCol + uiLoop * 3 - 1), uiRow);
}
else
{
f_conStrOutXY( " ", (uiCol + uiLoop * 3 - 1), uiRow);
}
}
/********************************************************************
Desc: Handle up arrow key
*********************************************************************/
FSTATIC void DoUpArrow( void)
{
VIEW_MENU_ITEM_p pPrevItem;
if ((pPrevItem = gv_pViewMenuCurrItem->pPrevItem) != NULL)
{
if (pPrevItem->uiHorizCurPos != gv_pViewMenuCurrItem->uiHorizCurPos)
{
pPrevItem->uiHorizCurPos = gv_pViewMenuCurrItem->uiHorizCurPos;
}
gv_pViewMenuCurrItem = pPrevItem;
if (gv_pViewMenuCurrItem->uiRow < gv_uiViewTopRow)
{
gv_uiViewTopRow--;
gv_uiViewBottomRow--;
if (gv_pViewMenuCurrItem->uiRow < gv_uiViewTopRow)
{
gv_pViewMenuCurrItem = gv_pViewMenuCurrItem->pNextItem;
}
ViewRefreshMenu( NULL);
}
else
{
ViewRefreshMenu( gv_pViewMenuCurrItem->pNextItem);
}
}
}
/********************************************************************
Desc: Handle down arrow key
*********************************************************************/
FSTATIC void DoDownArrow( void)
{
VIEW_MENU_ITEM_p pNextItem;
if ((pNextItem = gv_pViewMenuCurrItem->pNextItem) != NULL)
{
if (pNextItem->uiHorizCurPos != gv_pViewMenuCurrItem->uiHorizCurPos)
{
pNextItem->uiHorizCurPos = gv_pViewMenuCurrItem->uiHorizCurPos;
}
gv_pViewMenuCurrItem = pNextItem;
if (gv_pViewMenuCurrItem->uiRow > gv_uiViewBottomRow)
{
gv_uiViewTopRow++;
gv_uiViewBottomRow++;
if (gv_pViewMenuCurrItem->uiRow > gv_uiViewBottomRow)
{
gv_pViewMenuCurrItem = gv_pViewMenuCurrItem->pPrevItem;
}
ViewRefreshMenu( NULL);
}
else
{
ViewRefreshMenu( gv_pViewMenuCurrItem->pPrevItem);
}
}
}
/********************************************************************
Desc: Handle page down key
*********************************************************************/
FSTATIC void DoPageDown( void)
{
FLMUINT uiTargetRow;
VIEW_MENU_ITEM_p pSaveItem;
if (gv_uiViewBottomRow < gv_pViewMenuLastItem->uiRow)
{
gv_uiViewBottomRow += LINES_PER_PAGE;
if (gv_uiViewBottomRow > gv_pViewMenuLastItem->uiRow)
{
gv_uiViewBottomRow = gv_pViewMenuLastItem->uiRow;
}
gv_uiViewTopRow = gv_uiViewBottomRow - LINES_PER_PAGE + 1;
uiTargetRow = gv_pViewMenuCurrItem->uiRow + LINES_PER_PAGE;
if (uiTargetRow > gv_uiViewBottomRow)
{
uiTargetRow = gv_uiViewBottomRow;
}
while (gv_pViewMenuCurrItem->pNextItem &&
gv_pViewMenuCurrItem->uiRow < uiTargetRow)
{
gv_pViewMenuCurrItem = gv_pViewMenuCurrItem->pNextItem;
}
if (gv_pViewMenuCurrItem->uiRow > gv_uiViewBottomRow)
{
gv_pViewMenuCurrItem = gv_pViewMenuCurrItem->pPrevItem;
}
ViewRefreshMenu( NULL);
}
else if (gv_pViewMenuCurrItem->pNextItem)
{
pSaveItem = gv_pViewMenuCurrItem;
gv_pViewMenuCurrItem = gv_pViewMenuLastItem;
ViewRefreshMenu( pSaveItem);
}
}
/********************************************************************
Desc: Handle the page up key
*********************************************************************/
FSTATIC void DoPageUp( void)
{
FLMUINT uiTargetRow;
VIEW_MENU_ITEM_p pSaveItem;
if (gv_uiViewTopRow > 0)
{
if (gv_uiViewTopRow < LINES_PER_PAGE)
{
gv_uiViewTopRow = 0;
}
else
{
gv_uiViewTopRow -= LINES_PER_PAGE;
}
gv_uiViewBottomRow = gv_uiViewTopRow + LINES_PER_PAGE - 1;
uiTargetRow = gv_pViewMenuCurrItem->uiRow - LINES_PER_PAGE;
if (uiTargetRow < gv_uiViewTopRow)
{
uiTargetRow = gv_uiViewTopRow;
}
while (gv_pViewMenuCurrItem->pPrevItem &&
gv_pViewMenuCurrItem->uiRow > uiTargetRow)
{
gv_pViewMenuCurrItem = gv_pViewMenuCurrItem->pPrevItem;
}
if (gv_pViewMenuCurrItem->uiRow < gv_uiViewTopRow)
{
gv_pViewMenuCurrItem = gv_pViewMenuCurrItem->pNextItem;
}
ViewRefreshMenu( NULL);
}
else if (gv_pViewMenuCurrItem->pPrevItem != NULL)
{
pSaveItem = gv_pViewMenuCurrItem;
gv_pViewMenuCurrItem = gv_pViewMenuFirstItem;
ViewRefreshMenu( pSaveItem);
}
}
/********************************************************************
Desc: Handle home key
*********************************************************************/
FSTATIC void DoHome( void)
{
VIEW_MENU_ITEM_p pSaveItem;
if (gv_uiViewTopRow != 0)
{
gv_uiViewTopRow = 0;
gv_uiViewBottomRow = gv_uiViewTopRow + LINES_PER_PAGE - 1;
gv_pViewMenuCurrItem = gv_pViewMenuFirstItem;
ViewRefreshMenu( NULL);
}
else if (gv_pViewMenuCurrItem->pPrevItem)
{
pSaveItem = gv_pViewMenuCurrItem;
gv_pViewMenuCurrItem = gv_pViewMenuFirstItem;
ViewRefreshMenu( pSaveItem);
}
}
/********************************************************************
Desc: Handle end key
*********************************************************************/
FSTATIC void DoEnd( void)
{
VIEW_MENU_ITEM_p pSaveItem;
if (gv_uiViewBottomRow < gv_pViewMenuLastItem->uiRow)
{
gv_uiViewBottomRow = gv_pViewMenuLastItem->uiRow;
gv_uiViewTopRow = gv_uiViewBottomRow - LINES_PER_PAGE + 1;
gv_pViewMenuCurrItem = gv_pViewMenuLastItem;
ViewRefreshMenu( NULL);
}
else if (gv_pViewMenuCurrItem->pNextItem)
{
pSaveItem = gv_pViewMenuCurrItem;
gv_pViewMenuCurrItem = gv_pViewMenuLastItem;
ViewRefreshMenu( pSaveItem);
}
}
/********************************************************************
Desc: Handle right arrow key
*********************************************************************/
FSTATIC void DoRightArrow( void)
{
if (!HAVE_HORIZ_CUR( gv_pViewMenuCurrItem) ||
gv_pViewMenuCurrItem->uiHorizCurPos == HORIZ_SIZE( gv_pViewMenuCurrItem) - 1)
{
if (gv_pViewMenuCurrItem->uiItemNum != gv_pViewMenuLastItem->uiItemNum)
{
gv_pViewMenuCurrItem->uiHorizCurPos = 0;
DoDownArrow();
}
}
else if (gv_pViewMenuCurrItem->uiHorizCurPos <
HORIZ_SIZE( gv_pViewMenuCurrItem) - 1)
{
UpdateHorizCursor( FALSE);
gv_pViewMenuCurrItem->uiHorizCurPos++;
UpdateHorizCursor( TRUE);
}
}
/********************************************************************
Desc: Handle left arrow key
*********************************************************************/
FSTATIC void DoLeftArrow( void)
{
if (!HAVE_HORIZ_CUR( gv_pViewMenuCurrItem) ||
gv_pViewMenuCurrItem->uiHorizCurPos == 0)
{
if (gv_pViewMenuCurrItem->pPrevItem)
{
gv_pViewMenuCurrItem->uiHorizCurPos =
HORIZ_SIZE( gv_pViewMenuCurrItem->pPrevItem) - 1;
}
DoUpArrow();
}
else if (gv_pViewMenuCurrItem->uiHorizCurPos > 0)
{
UpdateHorizCursor( FALSE);
gv_pViewMenuCurrItem->uiHorizCurPos--;
UpdateHorizCursor( TRUE);
}
}
/***************************************************************************
Desc: This routine displays a help screen showing available commands.
*****************************************************************************/
FSTATIC void ViewHelpScreen( void)
{
FLMUINT uiChar;
// Clear the screen and display the menu title
f_conSetBackFore( FLM_BLACK, FLM_WHITE);
f_conClearScreen( 0, 1);
f_conSetCursorPos( 0, 3);
f_conStrOut( " RECOGNIZED KEYBOARD CHARACTERS\n");
f_conStrOut( "\n");
f_conStrOut( " ESCAPE - Exit Screen\n");
f_conStrOut( " U,u,8 - Up Arrow\n");
f_conStrOut( " D,d,2 - Down Arrow\n");
f_conStrOut( " +,3 - Page Down\n");
f_conStrOut( " R,r,6 - Right Arrow\n");
f_conStrOut( " L,l,5 - Left Arrow\n");
f_conStrOut( " -,9 - Page Up\n");
f_conStrOut( " H,h,7 - Home\n");
f_conStrOut( " Z,z,1 - End\n");
f_conStrOut( " E,e - Edit Data\n");
f_conStrOut( " A,a - Edit Data in RAW Mode (no checksum)\n");
f_conStrOut( " G,g - Goto Block\n");
f_conStrOut( " X,x - Display Hex\n");
f_conStrOut( " Y,y - Display Decrypted\n");
f_conStrOut( " S,s - Search\n");
f_conStrOut( " ? - Show this help screen\n");
f_conStrOut( "\n");
f_conStrOut( " PRESS ANY CHARACTER TO EXIT HELP SCREEN\n");
for (;;)
{
// Update date and time
ViewUpdateDate( FALSE, &gv_ViewLastTime);
// See what character was pressed
uiChar = (!f_conHaveKey()) ? 0 : (f_conGetKey());
if (gv_bShutdown)
{
return;
}
if (uiChar)
{
break;
}
viewGiveUpCPU();
}
ViewRefreshMenu( NULL);
}
/***************************************************************************
Desc: This routine allows the user to press keys while in a menu.
Keys for navigating through the menu are handled inside this
routine. Other keys are passed to the calling routine or are
ignored altogether.
*****************************************************************************/
FLMUINT ViewGetMenuOption( void)
{
FLMUINT uiChar;
// Make sure we have a pointer to the current item
if (!gv_pViewMenuCurrItem)
{
gv_pViewMenuCurrItem = gv_pViewMenuFirstItem;
while (gv_pViewMenuCurrItem->pNextItem &&
gv_pViewMenuCurrItem->uiItemNum < gv_uiViewMenuCurrItemNum)
{
gv_pViewMenuCurrItem = gv_pViewMenuCurrItem->pNextItem;
}
if (gv_pViewMenuCurrItem->uiItemNum != gv_uiViewMenuCurrItemNum)
{
gv_uiViewMenuCurrItemNum = gv_pViewMenuCurrItem->uiItemNum;
ViewDispMenuItem( gv_pViewMenuCurrItem);
}
}
// Loop getting user input
ViewEscPrompt();
for (;;)
{
// Set the file position of the current object
if (gv_pViewMenuCurrItem->uiModFileOffset != VIEW_INVALID_FILE_OFFSET)
{
gv_uiViewCurrFileOffset = gv_pViewMenuCurrItem->uiModFileOffset;
gv_uiViewCurrFileNumber = gv_pViewMenuCurrItem->uiModFileNumber;
if (HAVE_HORIZ_CUR( gv_pViewMenuCurrItem))
{
gv_uiViewCurrFileOffset += gv_pViewMenuCurrItem->uiHorizCurPos;
}
}
// Update date and time
ViewUpdateDate( FALSE, &gv_ViewLastTime);
// See what character was pressed
viewGiveUpCPU();
uiChar = (FLMUINT)(!f_conHaveKey()
? (FLMUINT)0
: (FLMUINT)f_conGetKey());
if (gv_bShutdown)
{
return( ESCAPE_OPTION);
}
switch( uiChar)
{
case FKB_ESCAPE:
return( ESCAPE_OPTION);
case FKB_UP:
case 'U':
case 'u':
case '8':
DoUpArrow();
break;
case FKB_DOWN:
case 'D':
case 'd':
case '2':
DoDownArrow();
break;
case FKB_PGDN:
case '+':
case '3':
DoPageDown();
break;
case FKB_PGUP:
case '-':
case '9':
DoPageUp();
break;
case FKB_HOME:
case 'H':
case 'h':
case '7':
DoHome();
break;
case FKB_END:
case 'Z':
case 'z':
case '1':
DoEnd();
break;
case '\n':
case '\r':
case FKB_ENTER:
if (gv_pViewMenuCurrItem->uiOption)
{
return( gv_pViewMenuCurrItem->uiOption);
}
break;
case 'G':
case 'g':
case 7: /* Control-G */
return( GOTO_BLOCK_OPTION);
case FKB_RIGHT:
case 'R':
case 'r':
case '6':
DoRightArrow();
break;
case FKB_LEFT:
case 'L':
case 'l':
case '4':
DoLeftArrow();
break;
case 'E':
case 'e':
return( EDIT_OPTION);
case 'A':
case 'a':
return( EDIT_RAW_OPTION);
case 'x':
case 'X':
return( HEX_OPTION);
case 'S':
case 's':
return( SEARCH_OPTION);
case '?':
ViewHelpScreen();
break;
default:
break;
}
}
}
/***************************************************************************
Desc: This routine updates the date and time on the screen.
*****************************************************************************/
void ViewUpdateDate(
FLMBOOL bUpdateFlag,
F_TMSTAMP * pLastTime
)
{
F_TMSTAMP CurrTime;
char szTempBuf [64];
FLMUINT uiHour;
char szAmPm [4];
FLMUINT uiNumCols;
FLMUINT uiNumRows;
f_conGetScreenSize( &uiNumCols, &uiNumRows);
f_timeGetTimeStamp( &CurrTime);
// Update the date, if it has changed or the bUpdateFlag is set
if (bUpdateFlag ||
pLastTime->year != CurrTime.year ||
pLastTime->month != CurrTime.month ||
pLastTime->day != CurrTime.day)
{
f_sprintf( (char *)szTempBuf, "%s %u, %u",
Months [CurrTime.month],
(unsigned)CurrTime.day,
(unsigned)CurrTime.year);
f_conSetBackFore( FLM_BLACK, FLM_WHITE);
f_conStrOutXY( szTempBuf, 0, 0);
}
// Update the time, if it has changed or the bUpdateFlag is set
if (bUpdateFlag ||
pLastTime->hour != CurrTime.hour ||
pLastTime->minute != CurrTime.minute ||
pLastTime->second != CurrTime.second)
{
if (CurrTime.hour == 0)
{
uiHour = 12;
}
else if (CurrTime.hour > 12)
{
uiHour = (FLMUINT)CurrTime.hour - 12;
}
else
{
uiHour = (FLMUINT)CurrTime.hour;
}
if (CurrTime.hour >= 12)
{
f_strcpy( szAmPm, "pm");
}
else
{
f_strcpy( szAmPm, "am");
}
f_sprintf( (char *)szTempBuf, "%2u:%02u:%02u %s",
(unsigned)uiHour,
(unsigned)CurrTime.minute,
(unsigned)CurrTime.second, szAmPm);
f_conSetBackFore( FLM_BLACK, FLM_WHITE);
f_conStrOutXY( szTempBuf, 66, 0);
}
if (bUpdateFlag ||
gv_uiViewLastFileOffset != gv_uiViewCurrFileOffset ||
(gv_pViewMenuCurrItem->uiModFileOffset == VIEW_INVALID_FILE_OFFSET &&
gv_uiViewLastFileOffset != VIEW_INVALID_FILE_OFFSET))
{
if (!gv_pViewMenuCurrItem)
{
gv_uiViewLastFileOffset = VIEW_INVALID_FILE_OFFSET;
}
else if (gv_pViewMenuCurrItem->uiModFileOffset == VIEW_INVALID_FILE_OFFSET)
{
gv_uiViewLastFileNumber = gv_pViewMenuCurrItem->uiModFileNumber;
gv_uiViewLastFileOffset = gv_pViewMenuCurrItem->uiModFileOffset;
}
else
{
gv_uiViewLastFileNumber = gv_uiViewCurrFileNumber;
gv_uiViewLastFileOffset = gv_uiViewCurrFileOffset;
}
if (gv_uiViewLastFileOffset == VIEW_INVALID_FILE_OFFSET)
{
f_strcpy( szTempBuf, "File: N/A File Pos: N/A ");
}
else
{
f_sprintf( (char *)szTempBuf, "File: %03u File Pos: 0x%08X",
(unsigned)gv_uiViewLastFileNumber,
(unsigned)gv_uiViewLastFileOffset);
}
f_conSetBackFore( FLM_BLACK, FLM_WHITE);
f_conStrOutXY( szTempBuf, 47, uiNumRows - 1);
}
// Save the date and time
f_memcpy( pLastTime, &CurrTime, sizeof( F_TMSTAMP));
}
/***************************************************************************
Desc: This routine resets the view parameters for a menu and saves
the parameters for the current menu. This is done whenever a new
menu is being entered. It allows the previous menu to be restored
to its original state upon returning.
*****************************************************************************/
void ViewReset(
VIEW_INFO_p pSaveView
)
{
pSaveView->uiCurrItem = gv_uiViewMenuCurrItemNum;
pSaveView->uiTopRow = gv_uiViewTopRow;
pSaveView->uiBottomRow = gv_uiViewBottomRow;
pSaveView->uiCurrFileOffset = gv_uiViewCurrFileOffset;
pSaveView->uiCurrFileNumber = gv_uiViewCurrFileNumber;
gv_pViewMenuCurrItem = NULL;
gv_uiViewMenuCurrItemNum = 0;
gv_uiViewTopRow = 0;
gv_uiViewBottomRow = gv_uiViewTopRow + LINES_PER_PAGE - 1;
gv_uiViewCurrFileOffset = 0;
gv_uiViewCurrFileNumber = 0;
}
/********************************************************************
Desc: ?
*********************************************************************/
void ViewDisable( void)
{
gv_bViewEnabled = FALSE;
}
/********************************************************************
Desc: ?
*********************************************************************/
void ViewEnable( void)
{
VIEW_MENU_ITEM_p pMenuItem;
FLMUINT uiDistance = 0xFFFFFFFF;
VIEW_MENU_ITEM_p pClosestMenuItem = NULL;
FLMUINT uiStartOffset;
FLMUINT uiEndOffset;
if (!gv_bViewEnabled)
{
if (gv_uiViewCurrFileOffset != VIEW_INVALID_FILE_OFFSET)
{
pMenuItem = gv_pViewMenuFirstItem;
while (pMenuItem)
{
if (pMenuItem->uiModFileOffset != VIEW_INVALID_FILE_OFFSET)
{
uiStartOffset = pMenuItem->uiModFileOffset;
switch (pMenuItem->uiModType & 0x0F)
{
case MOD_FLMUINT32:
uiEndOffset = uiStartOffset + 3;
break;
case MOD_FLMUINT16:
uiEndOffset = uiStartOffset + 1;
break;
case MOD_BINARY:
case MOD_TEXT:
uiEndOffset = uiStartOffset + pMenuItem->uiModBufLen - 1;
break;
case MOD_CHILD_BLK:
uiEndOffset = uiStartOffset + 2;
break;
case MOD_FLMUINT64:
uiEndOffset = uiStartOffset + 7;
break;
default:
uiEndOffset = uiStartOffset;
break;
}
if (gv_uiViewCurrFileOffset >= uiStartOffset &&
gv_uiViewCurrFileOffset <= uiEndOffset)
{
if ((pMenuItem->uiModType & 0xF0) == MOD_DISABLED)
{
pClosestMenuItem = pMenuItem;
uiDistance = 0;
}
else
{
pClosestMenuItem = pMenuItem;
break;
}
}
else if (gv_uiViewCurrFileOffset < uiStartOffset)
{
if (uiStartOffset - gv_uiViewCurrFileOffset < uiDistance)
{
pClosestMenuItem = pMenuItem;
uiDistance = uiStartOffset - gv_uiViewCurrFileOffset;
}
}
else
{
if (gv_uiViewCurrFileOffset - uiStartOffset < uiDistance)
{
pClosestMenuItem = pMenuItem;
uiDistance = gv_uiViewCurrFileOffset - uiStartOffset;
}
}
}
pMenuItem = pMenuItem->pNextItem;
}
}
if (pClosestMenuItem)
{
gv_pViewMenuCurrItem = pMenuItem = pClosestMenuItem;
gv_uiViewMenuCurrItemNum = pMenuItem->uiItemNum;
if (pMenuItem->uiRow < LINES_PER_PAGE)
{
gv_uiViewTopRow = 0;
}
else
{
gv_uiViewTopRow = pMenuItem->uiRow - LINES_PER_PAGE / 2 + 1;
}
gv_uiViewBottomRow = gv_uiViewTopRow + LINES_PER_PAGE - 1;
if (gv_uiViewBottomRow > gv_pViewMenuLastItem->uiRow)
{
gv_uiViewBottomRow = gv_pViewMenuLastItem->uiRow;
}
if (gv_uiViewBottomRow - gv_uiViewTopRow + 1 < LINES_PER_PAGE)
{
if (gv_uiViewBottomRow < LINES_PER_PAGE + 1)
{
gv_uiViewTopRow = 0;
}
else
{
gv_uiViewTopRow = gv_uiViewBottomRow + 1 - LINES_PER_PAGE;
}
}
if (HAVE_HORIZ_CUR( pMenuItem) &&
gv_uiViewCurrFileOffset - pMenuItem->uiModFileOffset <=
(FLMUINT)pMenuItem->uiModBufLen)
{
pMenuItem->uiHorizCurPos =
(FLMUINT)(gv_uiViewCurrFileOffset - pMenuItem->uiModFileOffset);
}
}
gv_bViewEnabled = TRUE;
ViewRefreshMenu( NULL);
}
}
/***************************************************************************
Desc: This routine restores the view parameters for a menu which were
previously saved by the ViewReset routine.
*****************************************************************************/
void ViewRestore(
VIEW_INFO_p pSaveView
)
{
gv_uiViewMenuCurrItemNum = pSaveView->uiCurrItem;
gv_pViewMenuCurrItem = NULL;
gv_uiViewTopRow = pSaveView->uiTopRow;
gv_uiViewBottomRow = pSaveView->uiBottomRow;
gv_uiViewCurrFileOffset = pSaveView->uiCurrFileOffset;
gv_uiViewCurrFileNumber = pSaveView->uiCurrFileNumber;
}
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