kicad/eeschema/busentry.cpp

/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2004 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
 * Copyright (C) 2008-2011 Wayne Stambaugh <stambaughw@verizon.net>
 * Copyright (C) 2004-2011 KiCad Developers, see change_log.txt for contributors.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */

/**
 * @file busentry.cpp
 * @brief Code to handle manipulation of bus entry objects.
 */

#include "fctsys.h"
#include "gr_basic.h"
#include "class_drawpanel.h"
#include "eeschema_id.h"
#include "confirm.h"
#include "wxEeschemaStruct.h"

#include "general.h"
#include "protos.h"
#include "sch_bus_entry.h"


static int     s_LastShape = '\\';


SCH_BUS_ENTRY* SCH_EDIT_FRAME::CreateBusEntry( wxDC* DC, int entry_type )
{
    // Create and place a new bus entry at cursor position
    SCH_BUS_ENTRY* BusEntry = new SCH_BUS_ENTRY( GetScreen()->GetCrossHairPosition(), s_LastShape,
                                                 entry_type );
    BusEntry->m_Flags = IS_NEW;
    BusEntry->Place( this, DC );
    OnModify();
    return BusEntry;
}


/* set the shape of BusEntry (shape = / or \ )
 */
void SCH_EDIT_FRAME::SetBusEntryShape( wxDC* DC, SCH_BUS_ENTRY* BusEntry, int entry_shape )
{
    if( BusEntry == NULL )
        return;

    if( BusEntry->Type() != SCH_BUS_ENTRY_T )
    {
        DisplayError( this, wxT( "SetBusEntryType: Bad StructType" ) );
        return;
    }

    /* Put old item in undo list if it is not currently in edit */
    if( BusEntry->m_Flags == 0 )
        SaveCopyInUndoList( BusEntry, UR_CHANGED );

    BusEntry->Draw( DrawPanel, DC, wxPoint( 0, 0 ), g_XorMode );

    switch( entry_shape )
    {
    case '\\':
        s_LastShape = '\\';
        BusEntry->m_Size.y = 100;
        break;

    case '/':
        s_LastShape = '/';
        BusEntry->m_Size.y = -100;
        break;
    }

    GetScreen()->TestDanglingEnds();
    BusEntry->Draw( DrawPanel, DC, wxPoint( 0, 0 ), g_XorMode );
    OnModify( );
}


int SCH_EDIT_FRAME::GetBusEntryShape( SCH_BUS_ENTRY* BusEntry )
{
    int entry_shape = '\\';

    if( BusEntry->m_Size.y < 0 )
        entry_shape = '/';

    return entry_shape;
}