kicad/eeschema/sch_polyline.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) 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 sch_polyline.cpp
 */

#include <fctsys.h>
#include <gr_basic.h>
#include <macros.h>
#include <class_drawpanel.h>
#include <trigo.h>
#include <common.h>
#include <richio.h>

#include <general.h>
#include <protos.h>
#include <sch_polyline.h>


SCH_POLYLINE::SCH_POLYLINE( int layer ) :
    SCH_ITEM( NULL, SCH_POLYLINE_T )
{
    m_width = 0;

    switch( layer )
    {
    default:
        m_Layer = LAYER_NOTES;
        break;

    case LAYER_WIRE:
    case LAYER_NOTES:
    case LAYER_BUS:
        m_Layer = layer;
        break;
    }
}


SCH_POLYLINE::~SCH_POLYLINE()
{
}


EDA_ITEM* SCH_POLYLINE::Clone() const
{
    return new SCH_POLYLINE( *this );
}


bool SCH_POLYLINE::Save( FILE* aFile ) const
{
    bool        success = true;

    const char* layer = "Notes";
    const char* width = "Line";

    if( GetLayer() == LAYER_WIRE )
        layer = "Wire";

    if( GetLayer() == LAYER_BUS )
        layer = "Bus";

    if( fprintf( aFile, "Poly %s %s %d\n", width, layer, GetCornerCount() ) == EOF )
    {
        return false;
    }

    for( unsigned ii = 0; ii < GetCornerCount(); ii++ )
    {
        if( fprintf( aFile, "\t%-4d %-4d\n", m_points[ii ].x, m_points[ii].y ) == EOF )
        {
            success = false;
            break;
        }
    }

    return success;
}


bool SCH_POLYLINE::Load( LINE_READER& aLine, wxString& aErrorMsg )
{
    char Name1[256];
    char Name2[256];
    wxPoint pt;
    int ii;
    char* line = (char*) aLine;

    while( (*line != ' ' ) && *line )
        line++;

    if( sscanf( line, "%s %s %d", Name1, Name2, &ii ) != 3 )
    {
        aErrorMsg.Printf( wxT( "Eeschema file polyline struct error at line %d, aborted" ),
                          aLine.LineNumber() );
        aErrorMsg << wxT( "\n" ) << FROM_UTF8( (char*) aLine );
        return false;
    }

    m_Layer = LAYER_NOTES;

    if( Name2[0] == 'W' )
        m_Layer = LAYER_WIRE;

    if( Name2[0] == 'B' )
        m_Layer = LAYER_BUS;

    for( unsigned jj = 0; jj < (unsigned)ii; jj++ )
    {
        wxPoint point;

        if( !aLine.ReadLine() || sscanf( ((char*) aLine), "%d %d", &pt.x, &pt.y ) != 2 )
        {
            aErrorMsg.Printf( wxT( "Eeschema file polyline struct error at line %d, aborted" ),
                              aLine.LineNumber() );
            aErrorMsg << wxT( "\n" ) << FROM_UTF8( (char*) aLine );
            return false;
        }

        AddPoint( pt );
    }

    return true;
}


int SCH_POLYLINE::GetPenSize() const
{
    int pensize = ( m_width == 0 ) ? g_DrawDefaultLineThickness : m_width;

    return pensize;
}


void SCH_POLYLINE::Draw( EDA_DRAW_PANEL* aPanel, wxDC* aDC, const wxPoint& aOffset,
                         int aDrawMode, int aColor )
{
    int color;
    int width = GetPenSize();

    if( aColor >= 0 )
        color = aColor;
    else
        color = ReturnLayerColor( m_Layer );

    GRSetDrawMode( aDC, aDrawMode );

    if( m_Layer == LAYER_BUS )
    {
        width *= 3;
    }

    GRMoveTo( m_points[0].x, m_points[0].y );

    if( m_Layer == LAYER_NOTES )
    {
        for( unsigned i = 1; i < GetCornerCount(); i++ )
            GRDashedLineTo( aPanel->GetClipBox(), aDC, m_points[i].x + aOffset.x,
                            m_points[i].y + aOffset.y, width, color );
    }
    else
    {
        for( unsigned i = 1; i < GetCornerCount(); i++ )
            GRLineTo( aPanel->GetClipBox(), aDC, m_points[i].x + aOffset.x,
                      m_points[i].y + aOffset.y, width, color );
    }
}


void SCH_POLYLINE::MirrorX( int aXaxis_position )
{
    for( unsigned ii = 0; ii < GetCornerCount(); ii++ )
    {
        m_points[ii].y -= aXaxis_position;
        NEGATE(  m_points[ii].y );
        m_points[ii].y = aXaxis_position;
    }
}


void SCH_POLYLINE::MirrorY( int aYaxis_position )
{
    for( unsigned ii = 0; ii < GetCornerCount(); ii++ )
    {
        m_points[ii].x -= aYaxis_position;
        NEGATE(  m_points[ii].x );
        m_points[ii].x = aYaxis_position;
    }
}


void SCH_POLYLINE::Rotate( wxPoint aPosition )
{
    for( unsigned ii = 0; ii < GetCornerCount(); ii++ )
    {
        RotatePoint( &m_points[ii], aPosition, 900 );
    }
}


wxString SCH_POLYLINE::GetSelectMenuText() const
{
    wxString menuText, fmt;

    switch( m_Layer )
    {
    case LAYER_NOTES:
        fmt = _( "Graphic Polyline with %d Points" );
        break;

    case LAYER_WIRE:
        fmt = _( "Polyline Wire with %d Points" );
        break;

    case LAYER_BUS:
        fmt = _( "Polyline Bus with %d Points" );
        break;

    default:
        fmt = _( "Polyline on Unkown Layer with %d Points" );
    }

    menuText.Printf( fmt, m_points.size() );

    return menuText;
}


BITMAP_DEF SCH_POLYLINE::GetMenuImage() const
{
    if( m_Layer == LAYER_NOTES )
        return add_dashed_line_xpm;
    else if( m_Layer == LAYER_WIRE )
        return add_line_xpm;

    return add_bus_xpm;
}


bool SCH_POLYLINE::HitTest( const wxPoint& aPosition, int aAccuracy ) const
{
    for( size_t i = 0;  i < m_points.size() - 1;  i++ )
    {
        if( TestSegmentHit( aPosition, m_points[i], m_points[i + 1], aAccuracy ) )
            return true;
    }

    return false;
}


bool SCH_POLYLINE::HitTest( const EDA_RECT& aRect, bool aContained, int aAccuracy ) const
{
    EDA_RECT rect = aRect;

    rect.Inflate( aAccuracy );

    if( aContained )
        return rect.Contains( GetBoundingBox() );

    return rect.Intersects( GetBoundingBox() );
}


void SCH_POLYLINE::SetPosition( const wxPoint& aPosition )
{
    wxPoint offset = m_points[0] - aPosition;

    for( size_t i = 0;  i < m_points.size();  i++ )
        m_points[i] = m_points[i] - offset;
}