tree_browser.cpp

来自「ncbi源码」· C++ 代码 · 共 154 行

/*
 * ===========================================================================
 * PRODUCTION $Log: tree_browser.cpp,v $
 * PRODUCTION Revision 1000.1  2004/06/01 21:09:26  gouriano
 * PRODUCTION PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.3
 * PRODUCTION
 * ===========================================================================
 */

/*  $Id: tree_browser.cpp,v 1000.1 2004/06/01 21:09:26 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:  Mike DiCuccio
 *
 * File Description:
 *
 */

#include <ncbi_pch.hpp>
#include <gui/widgets/fl/tree_browser.hpp>

BEGIN_NCBI_SCOPE


CTreeBrowser::CTreeBrowser(int x, int y, int w, int h, const char* label)
    : Flu_Tree_Browser(x, y, w, h, label)
{
}


CTreeBrowser::Node* CTreeBrowser::Add(const string& child_label,
                                      Node* node,
                                      EAdd add_mode)
{
    if (child_label.empty()) {
        return NULL;
    }

    string str;
    const string* pstr = &child_label;
    if ( !node ) {
        node = get_root();
    }

    switch (add_mode) {
    case eAdd_Branch:
        if (child_label[ child_label.length() - 1 ] != '/') {
            str = child_label + "/";
            pstr = &str;
        }
        break;

    case eAdd_Leaf:
        if (child_label[ child_label.length() - 1 ] == '/'  &&
            (child_label.length() < 2  ||
             child_label[ child_label.length() - 2 ] != '\\')
             ) {
            str = child_label.substr(0, child_label.length()-1);
            pstr = &str;
        }
        break;
    }

    return add(node, pstr->c_str());
}



CTreeBrowser::Node* CTreeBrowser::AddChild(const string& child_label,
                                           Node* node)
{
    // make sure we end in an un-escaped '/'
    return Add(x_EscapeSlashes(child_label), node, eAdd_Branch);
}


CTreeBrowser::Node* CTreeBrowser::AddLeaf(const string& child_label,
                                          Node* node)
{
    // make sure we end in an un-escaped '/'
    return Add(x_EscapeSlashes(child_label), node, eAdd_Leaf);
}


CTreeBrowser::Node* CTreeBrowser::GetSelected(Node* node) const
{
    if ( !node ) {
        node = const_cast<CTreeBrowser*>(this)->get_root();
    }

    while (node  &&  !node->selected() ) {
        node = node->next();
    }

    return node;
}


string CTreeBrowser::x_EscapeSlashes(const string& s) const
{
    string str(s);
    string::size_type pos = 0;
    while ( (pos = str.find_first_of("/", pos)) != string::npos) {
        str.insert(pos, "\\");
        pos += 2;
    }
    return str;
}


END_NCBI_SCOPE


/*
 * ===========================================================================
 * $Log: tree_browser.cpp,v $
 * Revision 1000.1  2004/06/01 21:09:26  gouriano
 * PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.3
 *
 * Revision 1.3  2004/05/21 22:27:53  gorelenk
 * Added PCH ncbi_pch.hpp
 *
 * Revision 1.2  2003/12/22 19:38:13  dicuccio
 * Made GetSelected() const
 *
 * Revision 1.1  2003/12/09 15:51:53  dicuccio
 * Deprecated Fl_Toggle_Tree - replaced with Flu_Tree_Browser.  Added CTreeBrowser
 * as a standard tree interface
 *
 * ===========================================================================
 */