flu_combo_tree.cpp

来自「ncbi源码」· C++ 代码 · 共 125 行

/*
 * ===========================================================================
 * PRODUCTION $Log: Flu_Combo_Tree.cpp,v $
 * PRODUCTION Revision 1000.1  2004/06/01 21:05:42  gouriano
 * PRODUCTION PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.2
 * PRODUCTION
 * ===========================================================================
 */

/*
 * These files were imported into NCBI's CVS directly from FLU version 2.9.1.
 * Modifications to the source are listed below.
 *
 * ==========================================================================
 * $Log: Flu_Combo_Tree.cpp,v $
 * Revision 1000.1  2004/06/01 21:05:42  gouriano
 * PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.2
 *
 * Revision 1.2  2004/05/21 22:27:51  gorelenk
 * Added PCH ncbi_pch.hpp
 *
 * Revision 1.1  2004/03/11 13:51:39  dicuccio
 * Imported FLU version 2.9.1.  Altered export specifiers to match NCBI layout.
 * Altered include paths to match NCBI toolkit layout.
 *
 * ==========================================================================
 */
// $Id: Flu_Combo_Tree.cpp,v 1000.1 2004/06/01 21:05:42 gouriano Exp $

/***************************************************************
 *                FLU - FLTK Utility Widgets 
 *  Copyright (C) 2002 Ohio Supercomputer Center, Ohio State University
 *
 * This file and its content is protected by a software license.
 * You should have received a copy of this license with this file.
 * If not, please contact the Ohio Supercomputer Center immediately:
 * Attn: Jason Bryan Re: FLU 1224 Kinnear Rd, Columbus, Ohio 43212
 * 
 ***************************************************************/



#include <ncbi_pch.hpp>
#include <stdio.h>
#include <FL/Fl.H>
#include <FL/fl_draw.H>
#include <string.h>
#include <stdlib.h>
#include <FL/math.h>

#include <gui/widgets/FLU/Flu_Combo_Tree.h>

Flu_Combo_Tree :: Flu_Combo_Tree( int X, int Y, int W, int H, const char* l )
  : Flu_Combo_Box( X, Y, W, H, l ), tree(0,0,0,0)
{
  tree.callback( _cb, this );
  tree.selection_mode( FLU_SINGLE_SELECT );
  tree.when( FL_WHEN_RELEASE );
  set_combo_widget( &tree );
}

Flu_Combo_Tree :: ~Flu_Combo_Tree()
{
}

void Flu_Combo_Tree :: cb()
{
  //if( tree.callback_reason() == FLU_UNSELECTED )
  //selected( 0 );
  if( tree.callback_reason() == FLU_SELECTED )
    selected( tree.callback_node()->find_path() );
}

bool Flu_Combo_Tree :: _value( const char *v )
{
  // see if 'v' is in the tree, and if so, make it the current selection
  Flu_Tree_Browser::Node *n = tree.find( v );
  if( n )
    {
      tree.unselect_all();
      tree.set_hilighted( n );
      n->select( true );
      return true;
    }
  return false;
}

const char* Flu_Combo_Tree :: _next()
{
  Flu_Tree_Browser::Node *n = tree.get_selected( 1 );
  if( n )
    {
      Flu_Tree_Browser::Node *n2 = n->next();
      if( n2 )
	{
	  n->select( false );
	  n2->select( true );
	  tree.set_hilighted( n2 );
	  const char *path = n2->find_path();
	  return( strlen(path) ? path : NULL );
	}
    }
  return NULL;
}

const char* Flu_Combo_Tree :: _previous()
{
  Flu_Tree_Browser::Node *n = tree.get_selected( 1 );
  if( n )
    {
      Flu_Tree_Browser::Node *n2 = n->previous();
      if( n2 )
	{
	  if( n2->is_root() && !tree.show_root() )
	    return NULL;
	  n->select( false );
	  n2->select( true );
	  tree.set_hilighted( n2 );
	  const char *path = n2->find_path();
	  return( strlen(path) ? path : NULL );
	}
    }
  return NULL;
}