eng_move.c

vt6528芯片交换机API函数和文档运行程序

/*
 * 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:    eng_move.c
 *
 * Purpose: UI engine module to support item moving operations
 *
 * Author:  Jenda Jao
 *
 * Date:    Jan 08, 2002
 *
 * Functions:
 *
 * Revision History:
 *
 */


#if !defined(__ASCII_H__)
#include "ascii.h"
#endif
#if !defined(__KEY_H__)
#include "key.h"
#endif
#include "tty.h"
#include "allpages.h"
#include "engine.h"
#include "eng_io.h"




/*---------------------  Export Variables  --------------------------*/

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

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

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

static void s_vIncrItemID(void)
{
    g_wCurItemID = (g_wCurItemID+1) % g_pSCurPage->wVarItemNum;
}
static void s_vDecrItemID(void)
{
    g_wCurItemID = (g_wCurItemID + g_pSCurPage->wVarItemNum -1) % g_pSCurPage->wVarItemNum;
}

static void s_vIncrLineID(void)
{
    g_wCurLineID = (g_wCurLineID +1) % g_wTotalLineNum;
}
static void s_vDecrLineID(void)
{
    g_wCurLineID = (g_wCurLineID+g_wTotalLineNum-1) % g_wTotalLineNum;
}

static void s_vMovingTypeRectTab(void)
{
    if (g_wCurLineID == g_wTotalLineNum-1)    // last line
    {
        s_vIncrItemID();
        g_wCurLineID = 0;
    }
    else
        g_wCurLineID++;
}
static void s_vMovingTypeRectBkspc(void)
{
    if (g_wCurLineID == 0)     // first line
    {
        s_vDecrItemID();
        if (g_wTotalLineNum)
            g_wCurLineID = g_wTotalLineNum-1;
    }
    else
        g_wCurLineID--;
}

static void s_vMovingTypeNormal(void)
{
    switch(g_byCurKey)
    {
        case MK_BACKSPACE:
        case MK_V_LEFT:
        case MK_V_UP:
        {
            s_vDecrItemID();

            if ((g_SCurItem.f2RepeatType != REPEAT_TYPE_NONE)   // if next item is repeat-item
               &&(g_wTotalLineNum))
                    g_wCurLineID = g_wTotalLineNum-1;

            // prevent from moving to repeat item if g_wTotalLineNum==0
            if (g_wTotalLineNum == 0)
            {
                UINT16 ui;
                for (ui=0; ui<g_pSCurPage->wVarItemNum; ui++)
                {
                    if (g_SCurItem.f2RepeatType == REPEAT_TYPE_NONE)
                        break;
                    s_vDecrItemID();
                }
            }
        } break;

        case MK_TAB:
        case MK_V_RIGHT:
        case MK_V_DOWN:
        {
            s_vIncrItemID();

            if (g_SCurItem.f2RepeatType != REPEAT_TYPE_NONE)   // if next item is repeat-item
                g_wCurLineID = 0;

            // prevent from moving to repeat item if g_wTotalLineNum==0
            if (g_wTotalLineNum == 0)
            {
                UINT16 ui;
                for (ui=0; ui<g_pSCurPage->wVarItemNum; ui++)
                {
                    if (g_SCurItem.f2RepeatType == REPEAT_TYPE_NONE)
                        break;
                    s_vIncrItemID();
                }
            }
        } break;
    }
}

static void s_vMovingTypeRectSingle(void)
{
    switch(g_byCurKey)
    {
        case MK_V_LEFT:
        {
            if (g_wCurLineID < g_SCurItem.byLineNumPerColumn)   // if first col => roll to last col
            {
                g_wCurLineID += ((g_wTotalLineNum / g_SCurItem.byLineNumPerColumn) * g_SCurItem.byLineNumPerColumn);
                if (g_wCurLineID >= g_wTotalLineNum)
                    g_wCurLineID -= g_SCurItem.byLineNumPerColumn;
            }
            else
                g_wCurLineID -= g_SCurItem.byLineNumPerColumn;
        } break;

        case MK_BACKSPACE:
        case MK_V_UP:
        {
            s_vMovingTypeRectBkspc();
        } break;

        case MK_V_RIGHT:
        {
            if (g_wCurLineID+g_SCurItem.byLineNumPerColumn >= g_wTotalLineNum) // if last col => roll to first col
                g_wCurLineID %= g_SCurItem.byLineNumPerColumn;
            else
            {
                g_wCurLineID += g_SCurItem.byLineNumPerColumn;
                if (g_wCurLineID >= g_wTotalLineNum)
                    g_wCurLineID = g_wTotalLineNum-1;
            }
        } break;

        case MK_TAB:
        case MK_V_DOWN:
        {
            s_vMovingTypeRectTab();
        } break;
    }
}

static void s_vMovingTypeRectMulti(void)
{
    switch(g_byCurKey) {
        
    case MK_V_LEFT: {
        // if first item => move to last col of previous block, else move to previous item
        if (g_wCurItemID == 0)
        {
            if (g_wCurLineID < g_SCurItem.byLineNumPerColumn)  // if in first col
                g_wCurLineID += (((g_wTotalLineNum-1) / g_SCurItem.byLineNumPerColumn) * g_SCurItem.byLineNumPerColumn);
            else
                g_wCurLineID -= g_SCurItem.byLineNumPerColumn;
        }

        s_vDecrItemID();
        } break;

    case MK_V_RIGHT: {
        // if last item => move to first col of next block, else move to next item
        if (g_wCurItemID == g_pSCurPage->wVarItemNum -1)
        {
            if (g_wCurLineID + g_SCurItem.byLineNumPerColumn >= g_wTotalLineNum)
                g_wCurLineID %= g_SCurItem.byLineNumPerColumn;
            else
                g_wCurLineID += g_SCurItem.byLineNumPerColumn;
        }

        s_vIncrItemID();
        } break;

    case MK_V_UP: {
        s_vDecrLineID();
        } break;

    case MK_V_DOWN: {
        s_vIncrLineID();
        } break;

    case MK_BACKSPACE: {
        s_vMovingTypeRectBkspc();
        } break;

    case MK_TAB: {
        s_vMovingTypeRectTab();
        } break;
    }
}


void ENGvMoveItem(void)
{
    switch (g_SCurItem.f2RepeatType)
    {
        case REPEAT_TYPE_NONE:
            s_vMovingTypeNormal();
        break;
        case REPEAT_TYPE_RECT_SINGLE:
            s_vMovingTypeRectSingle();
        break;
        case REPEAT_TYPE_RECT_MULTI:
            s_vMovingTypeRectMulti();
        break;
    }
}