menu.cpp

来自「ncbi源码」· C++ 代码 · 共 221 行

/*
 * ===========================================================================
 * PRODUCTION $Log: menu.cpp,v $
 * PRODUCTION Revision 1000.1  2004/06/01 21:09:08  gouriano
 * PRODUCTION PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.5
 * PRODUCTION
 * ===========================================================================
 */

/*  $Id: menu.cpp,v 1000.1 2004/06/01 21:09:08 gouriano Exp $
 * ===========================================================================
 *
 *                            PUBLIC DOMAIN NOTICE
 *               National Center for Biotechnology Information
 *
 *  This software/database is a "United States Government Work" under the
 *  terms of the United States Copyright Act.  It was written as part of
 *  the author's official duties as a United States Government employee and
 *  thus cannot be copyrighted.  This software/database is freely available
 *  to the public for use. The National Library of Medicine and the U.S.
 *  Government have not placed any restriction on its use or reproduction.
 *
 *  Although all reasonable efforts have been taken to ensure the accuracy
 *  and reliability of the software and data, the NLM and the U.S.
 *  Government do not and cannot warrant the performance or results that
 *  may be obtained by using this software or data. The NLM and the U.S.
 *  Government disclaim all warranties, express or implied, including
 *  warranties of performance, merchantability or fitness for any particular
 *  purpose.
 *
 *  Please cite the author in any work or product based on this material.
 *
 * ===========================================================================
 *
 * Authors:  Andrey Yazhuk
 *  
 */

#include <ncbi_pch.hpp>
#include <corelib/ncbistd.hpp>

#include <FL/Fl.H>
#include <FL/fl_draw.H>
//###
#include <FL/Fl_BMP_Image.H>

#include <gui/widgets/fl/menu.hpp>

BEGIN_NCBI_SCOPE

////////////////////////////////////////////////////////////////////////////////
/// class CMenuBase

CMenuBase::CMenuBase()
:   m_CmdTarget(NULL)
{
}
                 
CMenuBase::~CMenuBase()
{
}

void    CMenuBase::SetCmdTarget(CCommandTarget* target)
{
    m_CmdTarget = target;
}

CCommandTarget*    CMenuBase::GetCmdTarget()
{
    return m_CmdTarget;
}

bool    CMenuBase::x_CreateFLTKMenu(const string& submenu_path, CMenuItem* submenu)
{
    if(submenu  &&  submenu->IsSubmenu())    {
        CMenuItem   *item = NULL, *next = NULL;
        string path;

        for(CMenuItem::TChildItem_I it = submenu->SubItemsBegin();
            it != submenu->SubItemsEnd(); )    {

            item = (*it)->GetValue();
            ++it;
            next = (it != submenu->SubItemsEnd()) ? (*it)->GetValue() : NULL;
            
            _ASSERT(item->IsValid());
            bool b_skip = item->IsSeparator()  ||  
                            (item->IsSubmenu()  &&  item->IsSubmenuEmpty() /* &&
                            (item->GetState() & CMenuItem::eHideIfEmpty) != 0*/ );
            if(! b_skip)   { // create FLTK item
                int fltk_flags = 0;
                path = submenu_path;
                if(path.size()) {
                    path += '/';
                }
                path += item->GetLabel();

                fltk_flags |= (next  &&  next->IsSeparator()) ? FL_MENU_DIVIDER : 0;
                
                if(item->IsCheckType()) {
                    fltk_flags |= FL_MENU_TOGGLE;
                    if(item->IsChecked())   {
                        fltk_flags |= FL_MENU_VALUE;
                    }
                } else if(item->IsRadioType())  {
                    fltk_flags |= FL_MENU_RADIO;
                    if(item->IsChecked())   {
                        fltk_flags |= FL_MENU_VALUE;
                    }
                }
                
                fltk_flags |= item->IsEnabled() ? 0 : FL_MENU_INACTIVE;
                fltk_flags |= item->IsSubmenu() ? FL_SUBMENU : 0;
                
                x_AddFLTKItem(path, 0, & item->GetCommand(), fltk_flags);

                if(item->IsSubmenu())   {
                    x_CreateFLTKMenu(path, item);
                }
            } 
        }
        return true;
    } else return false;
}

////////////////////////////////////////////////////////////////////////////////
// class CMenuBar 
CMenuBar::CMenuBar(int x, int y, int w, int h, const char *label)
:   Fl_Menu_Bar(x, y, w, h, label)
{
    textfont(FL_HELVETICA);
    textsize(12);     
}

/// Creates a menu described by array of SMenuItem-s. CMenuBar creates a separate
/// copy of a menu, so that it can be modified at run-time.
void    CMenuBar::SetItems(const SMenuItemRec* items)
{
    clear();

    CMenuItem* root = CreateMenuItems(items);
    x_CreateFLTKMenu("", root);
}

void    CMenuBar::SetItems(CMenuItem* rootitem)
{
    clear();
    CMenuBase::x_CreateFLTKMenu("", rootitem);
}

void    CMenuBar::x_AddFLTKItem(const string& path, ulong shortcut, 
                                const TCmdID* p_cmd, int flags)
{
    add(path.c_str(), shortcut, CMD_TARGET_FL_CALLBACK(),(void*) p_cmd, flags);
}

////////////////////////////////////////////////////////////////////////////////
// class CPopupMenu

CPopupMenu::CPopupMenu(int x, int y, int w, int h, const char *label)
:   Fl_Menu_Button(x, y, w, h, label)
{
    x_Init();
}
    
void    CPopupMenu::x_Init()
{
    type(Fl_Menu_Button::POPUP3);
    box(FL_NO_BOX);
    textfont(FL_HELVETICA);
    textsize(12);     
}

void    CPopupMenu::SetItems(const SMenuItemRec* items)
{
    clear();

    CMenuItem* root = CreateMenuItems(items);
    x_CreateFLTKMenu("", root);
}

void    CPopupMenu::SetItems(CMenuItem* rootitem)
{
    clear();

    CMenuBase::x_CreateFLTKMenu("", rootitem);
}

void    CPopupMenu::x_AddFLTKItem(const string& path, ulong shortcut, 
                                const TCmdID* p_cmd, int flags)
{
    add(path.c_str(), shortcut, CMD_TARGET_FL_CALLBACK(),(void*) p_cmd, flags);
}

END_NCBI_SCOPE

/*
 * ===========================================================================
 * $Log: menu.cpp,v $
 * Revision 1000.1  2004/06/01 21:09:08  gouriano
 * PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.5
 *
 * Revision 1.5  2004/05/21 22:27:53  gorelenk
 * Added PCH ncbi_pch.hpp
 *
 * Revision 1.4  2004/05/13 17:30:48  yazhuk
 * Removed eHideIfEmpty support
 *
 * Revision 1.3  2004/04/22 16:57:29  yazhuk
 * Moved CMenuItem to menu_item.cpp
 *
 * Revision 1.2  2004/02/04 20:00:17  yazhuk
 * Moved CMenuBar constructor from hpp file, changed font
 *
 * Revision 1.1  2004/01/15 20:08:27  yazhuk
 * Initial revision
 *
 * ===========================================================================
 */