wmenuitm.cpp

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C++ 代码 · 共 129 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 "wmenuitm.hpp"
#include "wwindow.hpp"
#include "wmenu.hpp"
#include "wpopmenu.hpp"


WEXPORT WMenuItem::WMenuItem( const char *text, WObject* obj, cbm pick,
                              cbh hint, const char *htext )
    : _parent( NULL )
    , _client( obj )
    , _pick( pick )
    , _hint( hint )
    , _hintText( htext )
    , _tagPtr( NULL ) {
/*********************/

    setText( text );
    setMenuId( WWindow::_idMaster++ );
    WWindow::_idMap.setThis( this, (WHANDLE)menuId() );
}


WEXPORT WMenuItem::~WMenuItem() {
/*******************************/

    if( parent() ) {
        parent()->removeItem( this );
    }
    WWindow::_idMap.clearThis( this );
}


void WEXPORT WMenuItem::picked() {
/********************************/

    if( _client && _pick ) {
        (_client->*_pick)( this );
    }
}


void WEXPORT WMenuItem::hilighted( bool ) {
/*****************************************/

// Portable UI does not inform WCLASS when a menu item has been hilighted.
// Note that the hint text for a menu item is automatically placed in the
// status window by the portable UI when the menu item has been hilighted.

}


void WMenuItem::attachMenu( WWindow *win, int idx ) {
/***************************************************/

    gui_menu_struct     menu_item;
    unsigned long       menu_style;

    menu_item.label = (char *)text();
    menu_item.id = menuId();
    menu_style = GUI_ENABLED;
    if( checked() ) {
        menu_style |= GUI_MENU_CHECKED;
    }
    if( !enabled() ) {
        menu_style |= GUI_GRAYED;
    }
    const char *c_hinttext = _hintText;
    menu_item.style = (gui_menu_styles)menu_style;
    menu_item.hinttext = (char *)c_hinttext;
    menu_item.num_child_menus = 0;
    menu_item.child = NULL;
    if( parent()->isFloatingMain() ) {
        // appending menu item to top level floating popup menu
        GUIInsertMenu( win->handle(), idx, &menu_item, TRUE );
    } else {
        // appending menu item to popup menu
        GUIInsertMenuToPopup( win->handle(), parent()->menuId(), idx,
                              &menu_item, parent()->isFloatingPopup() );
    }
    setOwner( win );
}


void WMenuItem::detachMenu() {
/****************************/

    if( owner() ) {
        if( owner()->handle() ) {
            if( parent()->isFloatingPopup() ) {
                GUIDeleteMenuItem( owner()->handle(), menuId(), TRUE );
            }
            GUIDeleteMenuItem( owner()->handle(), menuId(), FALSE );
        }
    }
    setOwner( NULL );
}