engine.c

VIA VT6524 8口网管交换机源码

/*
 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
 * All rights reserved.
 *
 * This software is copyrighted by and is the sole property of
 * VIA Networking Technologies, Inc. This software may only be used
 * in accordance with the corresponding license agreement. Any unauthorized
 * use, duplication, transmission, distribution, or disclosure of this
 * software is expressly forbidden.
 *
 * This software is provided by VIA Networking Technologies, Inc. "as is"
 * and any express or implied warranties, including, but not limited to, the
 * implied warranties of merchantability and fitness for a particular purpose
 * are disclaimed. In no event shall VIA Networking Technologies, Inc.
 * be liable for any direct, indirect, incidental, special, exemplary, or
 * consequential damages.
 *
 *
 * File:    engine.c
 *
 * Purpose: UI engine main body
 *
 * Author:  Jenda Jao
 *
 * Date:    Jan 08, 2002
 *
 * Functions:
 *
 * Revision History:
 *
 */


#include "str.h"
#include "ttyio.h"
#include "allpages.h"
#include "engine.h"
#include "eng_io.h"
#include "eng_move.h"
#include "eng_act.h"
#if !defined(__BITOP_H__)
#include "bitop.h"
#endif

#ifdef __MODULE_DEBUG_MENU
    #include "dbgmenu.h"
#endif




/*---------------------  Export Variables  --------------------------*/
BYTE g_byRootPageID;
BYTE g_byCurPageID;
BYTE g_byTotalLineNum;
BYTE g_byCurLineID;
BYTE g_byCurItemID;
BOOL g_bDataDirty;
BYTE g_byCurKey;

/*---------------------  Static Variables  --------------------------*/

/*---------------------  Static Definitions -------------------------*/

/*---------------------  Static Functions  --------------------------*/

void ENGvEnterPage(void) DIRECT_FUNTYPE_REENT
{
    g_byCurPageID = g_byRootPageID;

    while (g_byCurPageID != PAGE_LOGIN)
    {
        g_byTotalLineNum = 0;

        // The returned main menu page is always PAGE_MAIN_MENU, defined in g_abyPreviousPageID,
        // but the root page may be PAGE_MAIN_MENU or PAGE_MAIN_MENU_NOLOGOUT
        if (g_byCurPageID == PAGE_MAIN_MENU)
            g_byCurPageID = g_byRootPageID;

        if (g_pSCurPage->bLoadPage)
            if (g_pSCurPage->bLoadPage())
                continue;

        //// if item page
        if (g_pSCurPage->byActItemNum)
        {
            g_bDataDirty = FALSE;
            g_byCurLineID = 0;   // g_byCurLineID should be zero before print page
            ENGvPrintPage();

            ENGvRunActionBar();
        }   // end if item page

        //// menu page (ITEM_MENU_PAGESEL)
        else
        {
            g_byCurLineID = g_byCurItemID = 0;
            ENGvPrintPage();

            ENGvItemSelect();

            if (g_byCurPageID == PAGE_LOGIN)    // for disconnection (auto logout)
                return;

            if (g_byCurKey == KEY_ESC) // goto previous page
                g_byCurPageID = g_abyPreviousPageID[g_byCurPageID];
            else                                            // goto selected page
                g_byCurPageID = ((SItemPageSel*)(g_SCurItem.pvItem))->byPageID;
        }   // end if menu page
    }   // end while
}


// select a var item, return the array index of aSVarItem
void ENGvItemSelect(void) DIRECT_FUNTYPE_REENT
{
    BOOL bRtnKey = FALSE;
    g_byCurKey = 1;     // print the first item at first time

    // To generate msg bar
    ENGvClearMsgBar();

    while(1)
    {
        if (g_byCurKey)
            ENGvPrintItem(g_byCurLineID, g_byCurItemID, PRINT_ITEM_HIGHLIGHT);

        if (bRtnKey)
            bRtnKey = FALSE;
        else
            g_byCurKey = TTYcGetChar();

        // for auto-logout
        if (g_byCurKey == KEY_DISCONNECT)
        {
            g_byCurPageID = PAGE_LOGIN;
            return;
        }
      #ifdef __MODULE_DEBUG_MENU
        else if (g_byCurKey == '_')
        {
            DBGvMainMenu();
            ENGvPrintPage();
        }
      #endif
         // move item
        else if ( (KEY_ARROW_UP <= g_byCurKey && g_byCurKey <= KEY_ARROW_LEFT) ||
                (g_byCurKey == KEY_TAB) || (g_byCurKey == KEY_BKSPC) )
        {
            ENGvPrintItem(g_byCurLineID, g_byCurItemID, PRINT_ITEM_NORMAL);
            ENGvMoveItem();
        }
        // for listbox only
        else if ((g_byCurKey == KEY_SPACE)&&(g_SCurItem.f4DataType == ITEM_LISTBOX))
        {
            SItemListbox* pSIListbox = (SItemListbox*)(g_SCurItem.pvItem);
            BYTE byValue;
            BITvExtractBits(pSIListbox->pbyIndex + (pSIListbox->byVarBitOffset>>3) * g_byCurLineID,
                            pSIListbox->byStartBit + (pSIListbox->byVarBitOffset&0x07) * g_byCurLineID,
                            pSIListbox->byEndBit + (pSIListbox->byVarBitOffset&0x07) * g_byCurLineID,
                            &byValue);

            byValue = (byValue + 1) % pSIListbox->byListNum;

            BITvModifyBits(pSIListbox->pbyIndex + (pSIListbox->byVarBitOffset>>3) * g_byCurLineID,
                           pSIListbox->byStartBit + (pSIListbox->byVarBitOffset&0x07) * g_byCurLineID,
                           pSIListbox->byEndBit + (pSIListbox->byVarBitOffset&0x07) * g_byCurLineID,
                           &byValue);

            g_bDataDirty = TRUE;
        }
        // for var-listbox only
        else if ((g_byCurKey == KEY_SPACE)&&(g_SCurItem.f4DataType == ITEM_VAR_LISTBOX))
        {
            SItemVarListbox* pSIListbox = (SItemListbox*)(g_SCurItem.pvItem);
            BYTE byValue;

            if (! pSIListbox->pSStrTblMap->byListNum)
                continue;

            // The ITEM_VAR_LISTBOX item does not support repeat-type in this smart version
            BITvExtractBits(pSIListbox->pbyIndex,
                            pSIListbox->byStartBit,
                            pSIListbox->byEndBit,
                            &byValue);

            byValue = (byValue + 1) % (pSIListbox->pSStrTblMap->byListNum);

            BITvModifyBits(pSIListbox->pbyIndex,
                           pSIListbox->byStartBit,
                           pSIListbox->byEndBit,
                           &byValue);
            g_bDataDirty = TRUE;
        }

        // jump to action bar or goto selected page (LINK_TYPE_EDITPAGE includes ITEM_MENU_PAGESEL)
        else if ((g_byCurKey == KEY_ENTER && (g_SCurItem.f2LinkType == LINK_TYPE_LISTBOX || g_SCurItem.f2LinkType == LINK_TYPE_EDITPAGE))
              || (g_byCurKey == KEY_ESC))
        {
            ENGvPrintItem(g_byCurLineID, g_byCurItemID, PRINT_ITEM_NORMAL);
            return;
        }
        // deal with hotkey for ITEM_MENU_PAGESEL, support hot key
        else if (g_SCurItem.f4DataType == ITEM_MENU_PAGESEL)
        {
            if (('0' <= g_byCurKey) && (g_byCurKey < '0'+g_pSCurPage->byVarItemNum))
            {
                if (g_byCurKey == '0')
                    g_byCurItemID = g_pSCurPage->byVarItemNum-1;
                else
                    g_byCurItemID = g_byCurKey-'1';
                return;
            }
            g_byCurKey = 0; // input key not valid
        }

        // accept user input for ITEM_DECNUM, ITEM_HEXNUM, ITEM_STRING, ITEM_PASSWORD
        else if (g_SCurItem.f4DataType < ITEM_LISTBOX && g_SCurItem.f2LinkType == LINK_TYPE_NONE)
        {
            ENGvInputItem(&(g_SCurItem));
            g_bDataDirty = TRUE;
            bRtnKey = g_byCurKey;
        }
        // input key not valid
        else
            g_byCurKey = 0;
    } // end while(1)
}