uilist.c

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C语言 代码 · 共 123 行

/****************************************************************************
*
*                            Open Watcom Project
*
*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
*  ========================================================================
*
*    This file contains Original Code and/or Modifications of Original
*    Code as defined in and that are subject to the Sybase Open Watcom
*    Public License version 1.0 (the 'License'). You may not use this file
*    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
*    ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
*    provided with the Original Code and Modifications, and is also
*    available at www.sybase.com/developer/opensource.
*
*    The Original Code and all software distributed under the License are
*    distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
*    EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
*    ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
*    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
*    NON-INFRINGEMENT. Please see the License for the specific language
*    governing rights and limitations under the License.
*
*  ========================================================================
*
* Description:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
*               DESCRIBE IT HERE!
*
****************************************************************************/


#include "uidef.h"

static          EVENTLIST               EventList       = { 0 };


EVENTLIST* global uigetlist( void )
/*********************************/
{
    return( UIData->events );
}


void global uiputlist( EVENTLIST *eventlist )
/*******************************************/
{
    UIData->events = eventlist;
}


void global uipushlist( EVENT *list )
/***********************************/
{
    if( UIData->events == NULL ) {
        UIData->events = &EventList;
    }
    if( UIData->events->num_lists < MAX_EVENT_LISTS ) {
        UIData->events->events[ UIData->events->num_lists++ ] = list;
    }
}


bool global uichecklist( EVENT ev, EVENT *eptr )
/**********************************************/
{
    while( *eptr != EV_NO_EVENT ) {
        if( ( ev >= *eptr ) && ( ev <= *( eptr+1 ) ) ) {
            return( TRUE );
        }
        eptr += 2;
    }
    ++eptr;
    while( *eptr != EV_NO_EVENT ) {
        if( ev == *eptr ) {
            return( TRUE );
        }
        ++eptr;
    }
    return( FALSE );
}


EVENT *global uipoplist( void )
/*****************************/
{
    register EVENT      *list;

    UIData->events->num_lists--;
    list = UIData->events->events[ UIData->events->num_lists ];
    UIData->events->events[ UIData->events->num_lists ] = NULL;
    return( list );
}


bool global uiinlist( EVENT ev )
/******************************/
{
    register    int                     index;
    register    bool                    found;

    // EV_KILL_UI is implicitly pushed as part of every list
    if( ev == EV_KILL_UI ) {
        return( TRUE );
    }
    found = FALSE;
    for( index = UIData->events->num_lists-1; index >= 0; --index ) {
        if( UIData->events->events[ index ] == NULL ) break;
        found = uichecklist( ev, UIData->events->events[ index ] );
        if( found ) {
            break;
        }
    }
    return( found );
}


bool global uiintoplist( EVENT ev )
/*********************************/
{
    return( uichecklist( ev, UIData->events->events[ UIData->events->num_lists - 1 ] ) );
}