mfw_mnu.c

GSM手机设计软件代码

        {
            mnu->lCursor[mnu->level] = 0;
            mnu->flags |= E_MNU_BOTTOMED;
            if (mnu->handler)
                if (mnu->mask & E_MNU_BOTTOMED)
                    mnu->handler(E_MNU_BOTTOMED,mnu);
        }
        else
        {
            mnu->lCursor[mnu->level] += (U8) 1;
            mnu->flags &= ~E_MNU_BOTTOMED;
        }
        ci = ca->items + mnu->lCursor[mnu->level];
    } while (ci->flagFunc(mnu,ca,ci) & MNU_ITEM_HIDE);

	if (mnu->scrollMode) /* Simple scrolling */
	{
		U8 shift = mnu->lShift[mnu->level];
		U8 index = countVisible(mnu,ca,mnu->lCursor[mnu->level]);
		U8 visibleItems = countVisible(mnu,ca,ca->nItems); 
		int nLines = mnu->nLines;
		
		if (visibleItems<nLines)
			nLines = visibleItems;
		if (shift<nLines)
			shift++;
		mnu->lShift[mnu->level] = shift;		

	}
    mnuUpdate(mnu);
    return MfwResOk;
}


/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : MFW_MNU            |
| STATE   : code                        ROUTINE : mnuSelect          |
+--------------------------------------------------------------------+

  PURPOSE : select a menu item; if there is a submenu, go one level
            down

*/

MfwRes mnuSelect (MfwHnd m)
{
    MfwMnu *mnu;
    MfwMnuAttr *submenu, *ca;
    MenuFunc func;
	U8 dsplOld;

    if ((mnu = mfwControl(m)) == 0)
        return MfwResIllHnd;
    
    ca = mnu->curAttr;
    submenu = ca->items[mnu->lCursor[mnu->level]].menu;
    func = ca->items[mnu->lCursor[mnu->level]].func;

    if (func)                        /* perform submenu          */
    {
        func(mnu,&ca->items[mnu->lCursor[mnu->level]]);
    }

    if (submenu)                      /* call menu function       */
    {
        if (menuIsEmpty(mnu,submenu))
        {
            mnu->flags |= E_MNU_EMPTY;
            if (mnu->handler && mnu->mask & E_MNU_EMPTY)
                mnu->handler(E_MNU_EMPTY,mnu);
            mnu->flags &= ~E_MNU_EMPTY;
        }
        else
        {
            dspl_Clear(ca->area->px, ca->area->py,
                        (U16) (ca->area->sx+ca->area->px-1),
                        (U16) (ca->area->sy+ca->area->py-1));
            mnu->level++;
            mnu->lCursor[mnu->level] = 0;
            ca = mnu->curAttr = submenu;
            if (ca->items->flagFunc(mnu,ca,ca->items) & MNU_ITEM_HIDE)
                mnuDown(m);
            else
                mnuUpdate(mnu);
        }
	    return MfwResOk;								/* we do not have to check for !submenu */
    }

    if (!func && !submenu)                                /* inform mmi               */
    {
        mnu->flags |= E_MNU_SELECT;
        if (mnu->handler && mnu->mask & E_MNU_SELECT)
            mnu->handler(E_MNU_SELECT,mnu);
    }
    return MfwResOk;
}


/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : MFW_MNU            |
| STATE   : code                        ROUTINE : mnuEscape          |
+--------------------------------------------------------------------+

  PURPOSE : go back one level or leave the menu

*/

MfwRes mnuEscape (MfwHnd m)
{
    MfwMnu *mnu;
    MfwMnuAttr *attr;
    U8 lvl;
	U8 dsplOld;

    if ((mnu = mfwControl(m)) == 0)
        return MfwResIllHnd;

    if (mnu->level != 0)
    {
        mnu->lCursor[mnu->level] = UNUSED;
        mnu->lShift[mnu->level] = 1;
        mnu->level--;
        lvl = 0;                        /* set level 0              */
        attr = mnu->attr;               /* set start point          */
        while (lvl != mnu->level)
        {
            attr = attr->items[mnu->lCursor[lvl]].menu;
            lvl++;
        }
        mnu->curAttr = attr;
        mnuUpdate(mnu);
    }
    else
    {
        mnu->flags |= E_MNU_ESCAPE;
        if (mnu->handler)
            if (mnu->mask & E_MNU_ESCAPE)
                mnu->handler(E_MNU_ESCAPE,mnu);
    }
    return MfwResOk;
}


/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : MFW_MNU            |
| STATE   : code                        ROUTINE : mnuDone            |
+--------------------------------------------------------------------+

  PURPOSE : reset menu

*/

MfwRes mnuDone (MfwHnd m)
{
    MfwMnu *mnu;

    if ((mnu = mfwControl(m)) == 0)
        return MfwResIllHnd;

    mnu->curAttr = mnu->attr;
    mnu->level = 0;
    memset(mnu->lCursor,UNUSED,sizeof(mnu->lCursor));
    memset(mnu->lShift,1,sizeof(mnu->lShift));
    mnu->lCursor[0] = 0;

    return MfwResOk;
}


/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : MFW_MNU            |
| STATE   : code                        ROUTINE : mnuKeyAction       |
+--------------------------------------------------------------------+

  PURPOSE : perform direct jumping if there was pressed KCD_1
            through KCD_9; in this case function returns 1;
            otherwise function returns 0

*/

MfwRes mnuKeyAction (MfwHnd m, U8 keycode)
{
    MfwMnu *mnu;
    U8 directAccess;

    if ((mnu = mfwControl(m)) == 0)
        return MfwResIllHnd;

    switch (keycode)
    {
        case KCD_1: directAccess = 0; break;
        case KCD_2: directAccess = 1; break;
        case KCD_3: directAccess = 2; break;
        case KCD_4: directAccess = 3; break;
        case KCD_5: directAccess = 4; break;
        case KCD_6: directAccess = 5; break;
        case KCD_7: directAccess = 6; break;
        case KCD_8: directAccess = 7; break;
        case KCD_9: directAccess = 8; break;
        default: return 0;
    }

    if (directAccess >= mnu->curAttr->nItems)
        return 0;

    mnu->lCursor[mnu->level] = directAccess;
    mnuShow(m);
    mnuSelect(m);

    return 1;
}


/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : MFW_MNU            |
| STATE   : code                        ROUTINE : mnuChooseItem      |
+--------------------------------------------------------------------+

  PURPOSE : Chooses the nItemst Item.

*/

MfwRes mnuChooseVisibleItem(MfwHnd m,U8 nItem)
{

    MfwMnu *mnu;
	int i;

    if ((mnu = mfwControl(m)) == 0)
        return MfwResIllHnd;

	if (nItem<0)
		return MfwResIllHnd;

	for (i = 0; i < mnu->curAttr->nItems; i++)
    {
		if (!(mnu->curAttr->items[i].flagFunc(mnu,
                                              mnu->curAttr,
                                            &(mnu->curAttr->items[i]))
                & MNU_ITEM_HIDE))
		{
			if (!nItem)
				{
					mnu->lCursor[mnu->level] = i;
					mnuUpdate(mnu);
					return MfwResOk;
				}
			else
				nItem--;
		}
	}
	return MfwResIllHnd;

}



/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : MFW_MNU            |
| STATE   : code                        ROUTINE : menuIsEmpty        |
+--------------------------------------------------------------------+

  PURPOSE : check for empty submenu

*/

static int menuIsEmpty (MfwMnu *m, MfwMnuAttr *ma)
{
    int i;

    for (i = 0; i < ma->nItems; i++)
        if (!(ma->items[i].flagFunc(m,ma,&(ma->items[i]))
                                            & MNU_ITEM_HIDE))
            return 0;

    return 1;
}





/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : MFW_MNU            |
| STATE   : code                        ROUTINE : countVisible       |
+--------------------------------------------------------------------+

  PURPOSE : count visible items up to current item

*/

static int countVisible (MfwMnu *m, MfwMnuAttr *ma, int start)
{
    int i, count;

    for (i = 0, count = 0; i < start; i++)
        if (!(ma->items[i].flagFunc(m,ma,&(ma->items[i]))
                                            & MNU_ITEM_HIDE))
            count++;

    return count;
}

/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : MFW_MNU            |
| STATE   : code                        ROUTINE : countVisibleItems  |
+--------------------------------------------------------------------+

  PURPOSE : count visible items in the current branch

*/

U8 mnuCountVisibleItems (MfwHnd m)
{
    MfwMnu *mnu;

	if ((mnu = mfwControl(m)) == 0)
        return 0;

	return (U8)countVisible(mnu, mnu->curAttr,mnu->curAttr->nItems);
}


/*
+--------------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : MFW_MNU                  |
| STATE   : code                        ROUTINE : countCurrentVisibleItem  |
+--------------------------------------------------------------------------+

  PURPOSE : returns the position of the current Item
*/

U8 mnuCountCurrentVisibleItem(MfwHnd m)
{
    MfwMnu *mnu;
	U8 i;
	U8 pos=0;

	if ((mnu = mfwControl(m)) == 0)
        return 0;

	for (i = 0; i < mnu->curAttr->nItems; i++)
    {
		if ((mnu->lCursor[mnu->level]) == i)
			return pos;
		if (!(mnu->curAttr->items[i].flagFunc(mnu,
                                              mnu->curAttr,
                                            &(mnu->curAttr->items[i]))
                & MNU_ITEM_HIDE))
			pos++;
	}
	return pos;

}




/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : MFW_MNU            |
| STATE   : code                        ROUTINE : checkPredraw       |
+--------------------------------------------------------------------+

  PURPOSE : check / generate predraw event

*/

static int checkPredraw (MfwMnu *mnu, MfwMnuItem *mi,
                                char **t, MfwIcnAttr **icn)
{
    int res = 0;

    if (mi->flagFunc(mnu,mnu->curAttr,mi) & MNU_ITEM_NOTIFY)
    {
        mnu->flags |= E_MNU_PREDRAW;
        if (mnu->handler)
            if (mnu->mask & E_MNU_PREDRAW)
            {
                if (mi->exta)
                {
                    ((MfwItmExtPredraw*)(mi->exta))->str = *t;
                    ((MfwItmExtPredraw*)(mi->exta))->icon = *icn;
                }
                res = mnu->handler(E_MNU_PREDRAW,mi);
                if (mi->exta)
                {
                    *t = ((MfwItmExtPredraw*)(mi->exta))->str;
                    *icn = ((MfwItmExtPredraw*)(mi->exta))->icon;
                }
            }
        mnu->flags &= ~E_MNU_PREDRAW;
    }

    return res;
}


/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : MFW_MNU            |
| STATE   : code                        ROUTINE : checkPostdraw      |
+--------------------------------------------------------------------+

  PURPOSE : check / generate postdraw event

*/

static int checkPostdraw (MfwMnu *mnu, MfwMnuItem *mi)
{
    int res = 0;

    if (mi->flagFunc(mnu,mnu->curAttr,mi) & MNU_ITEM_NOTIFY)
    {
        mnu->flags |= E_MNU_POSTDRAW;
        if (mnu->handler)
            if (mnu->mask & E_MNU_POSTDRAW)
                res = mnu->handler(E_MNU_POSTDRAW,mi);
        mnu->flags &= ~E_MNU_POSTDRAW;
    }

    return res;
}


/*
+--------------------------------------------------------------------+
| PROJECT : MMI-Framework (8417)        MODULE  : MFW_MNU            |
| STATE   : code                        ROUTINE : checkStatus        |
+--------------------------------------------------------------------+

  PURPOSE : check / insert item status (string MUST be in RAM)

  SPR998 - SH - Changed to allow checkbox menu items.
*/

static int checkStatus (MfwMnu *m, MfwMnuAttr *ma, MfwMnuItem *mi,
                                                              char *menuString)
{
	char *e;                            /* ES!! UNICODE             */
	int index;
	BOOL unicode;
	U16 flagResult;

	if (menuString[0] == 0x80)
		unicode = TRUE;
	else
		unicode = FALSE;

	flagResult = mi->flagFunc(m,ma,mi);
    switch (flagResult)
    {
    	case MNU_ITEM_STATED:
		    e = mi->exta;
		    if (!e)
		        return 0;
		    while (menuString[index])
		    {
		        if (menuString[index] == '%')                  /* ES!! : UNICODE           */
		        {
		            switch (menuString[index+1])
		            {
		                case 'c':               /* single char              */
		                    strcpy(&menuString[index+1],&menuString[index+2]);
		                    menuString[index] = *e;
		                    e++;
		                    break;
		            }
		        }
		        index++;
		    }
		    break;

		/* SPR998 - SH - Checked or unchecked option.
		 * Don't need to do anything here. */
		
		case MNU_ITEM_UNCHECKED:
		case MNU_ITEM_CHECKED:
			break;
			
		default:
			break;
	}

    return flagResult;	/* SPR#998 - SH - Now returns item type */
}


static void mnuDrawHeader(MfwMnuAttr *mnuAttr, MfwRect* areaLeft, char *hdrString)
{
	int mode = mnuAttr->mode;
	MfwRect* mnuArea = mnuAttr->area;
	int mnuColour =  mnuAttr->mnuColour;
	char* txt=hdrString;
	int nPixels;
	int xPos,yPos,sx,sy,txtLen,txtXpos;
	xPos = mnuArea->px;
	yPos = mnuArea->py;
	sy = res_getTitleHeight();
	resources_setTitleColour(mnuColour);
    dspl_Clear(xPos,yPos,(U16)(mnuArea->sx+xPos-1),(U16)(mnuArea->sy+yPos-1));
	if ((mode & MNU_HDR_ALIGN) == MNU_HDR_LEFT)
	{
		//Position is correct
		txtXpos = xPos;
	}
	else
	{
		nPixels = dspl_GetTextExtent( txt, 0);
		if ((mode & MNU_HDR_ALIGN) == MNU_HDR_RIGHT)
		{
			txtXpos =  xPos + mnuArea->sx - nPixels;
		}
		else
		{	//Display in middle
			txtXpos =  xPos + (mnuArea->sx - nPixels)/2;
		}
	}