File: point_editor_behavior.cpp

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/*
 * This program source code file is part of KICAD, a free EDA CAD application.
 *
 * Copyright The KiCad Developers, see AUTHORS.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
 */

#include "tool/point_editor_behavior.h"

#include <geometry/shape_poly_set.h>


void POLYGON_POINT_EDIT_BEHAVIOR::BuildForPolyOutline( EDIT_POINTS&          aPoints,
                                                       const SHAPE_POLY_SET& aOutline )
{
    const int cornersCount = aOutline.TotalVertices();

    for( auto iterator = aOutline.CIterateWithHoles(); iterator; iterator++ )
    {
        aPoints.AddPoint( *iterator );

        if( iterator.IsEndContour() )
            aPoints.AddBreak();
    }

    // Lines have to be added after creating edit points, as they use EDIT_POINT references
    for( int i = 0; i < cornersCount - 1; ++i )
    {
        if( aPoints.IsContourEnd( i ) )
            aPoints.AddLine( aPoints.Point( i ), aPoints.Point( aPoints.GetContourStartIdx( i ) ) );
        else
            aPoints.AddLine( aPoints.Point( i ), aPoints.Point( i + 1 ) );

        aPoints.Line( i ).SetConstraint( new EC_PERPLINE( aPoints.Line( i ) ) );
    }

    // The last missing line, connecting the last and the first polygon point
    aPoints.AddLine( aPoints.Point( cornersCount - 1 ),
                     aPoints.Point( aPoints.GetContourStartIdx( cornersCount - 1 ) ) );

    aPoints.Line( aPoints.LinesSize() - 1 )
            .SetConstraint( new EC_PERPLINE( aPoints.Line( aPoints.LinesSize() - 1 ) ) );
}


void POLYGON_POINT_EDIT_BEHAVIOR::UpdatePointsFromOutline( const SHAPE_POLY_SET& aOutline,
                                                           EDIT_POINTS&          aPoints )
{
    // No size check here, as we can and will rebuild if that fails
    if( aPoints.PointsSize() != (unsigned) aOutline.TotalVertices() )
    {
        // Rebuild the points list
        aPoints.Clear();
        BuildForPolyOutline( aPoints, aOutline );
    }
    else
    {
        for( int i = 0; i < aOutline.TotalVertices(); ++i )
        {
            aPoints.Point( i ).SetPosition( aOutline.CVertex( i ) );
        }
    }
}


void POLYGON_POINT_EDIT_BEHAVIOR::UpdateOutlineFromPoints( SHAPE_POLY_SET&   aOutline,
                                                           const EDIT_POINT& aEditedPoint,
                                                           EDIT_POINTS&      aPoints )
{
    CHECK_POINT_COUNT_GE( aPoints, (unsigned) aOutline.TotalVertices() );

    for( int i = 0; i < aOutline.TotalVertices(); ++i )
    {
        aOutline.SetVertex( i, aPoints.Point( i ).GetPosition() );
    }

    for( unsigned i = 0; i < aPoints.LinesSize(); ++i )
    {
        if( !isModified( aEditedPoint, aPoints.Line( i ) ) )
        {
            aPoints.Line( i ).SetConstraint( new EC_PERPLINE( aPoints.Line( i ) ) );
        }
    }
}


void EDA_SEGMENT_POINT_EDIT_BEHAVIOR::MakePoints( EDIT_POINTS& aPoints )
{
    aPoints.AddPoint( m_segment.GetStart() );
    aPoints.AddPoint( m_segment.GetEnd() );
}


void EDA_SEGMENT_POINT_EDIT_BEHAVIOR::UpdatePoints( EDIT_POINTS& aPoints )
{
    CHECK_POINT_COUNT( aPoints, SEGMENT_MAX_POINTS );

    aPoints.Point( SEGMENT_START ) = m_segment.GetStart();
    aPoints.Point( SEGMENT_END ) = m_segment.GetEnd();
}


void EDA_SEGMENT_POINT_EDIT_BEHAVIOR::UpdateItem( const EDIT_POINT& aEditedPoint,
                                                  EDIT_POINTS& aPoints, COMMIT& aCommit,
                                                  std::vector<EDA_ITEM*>& aUpdatedItems )
{
    CHECK_POINT_COUNT( aPoints, SEGMENT_MAX_POINTS );

    if( isModified( aEditedPoint, aPoints.Point( SEGMENT_START ) ) )
        m_segment.SetStart( aPoints.Point( SEGMENT_START ).GetPosition() );

    else if( isModified( aEditedPoint, aPoints.Point( SEGMENT_END ) ) )
        m_segment.SetEnd( aPoints.Point( SEGMENT_END ).GetPosition() );
}

OPT_VECTOR2I
EDA_SEGMENT_POINT_EDIT_BEHAVIOR::Get45DegreeConstrainer( const EDIT_POINT& aEditedPoint,
                                                         EDIT_POINTS&      aPoints ) const
{
    // Select the other end of line
    return aPoints.Next( aEditedPoint )->GetPosition();
}


void EDA_CIRCLE_POINT_EDIT_BEHAVIOR::MakePoints( EDIT_POINTS& aPoints )
{
    aPoints.AddPoint( m_circle.getCenter() );
    aPoints.AddPoint( m_circle.GetEnd() );
}


void EDA_CIRCLE_POINT_EDIT_BEHAVIOR::UpdatePoints( EDIT_POINTS& aPoints )
{
    CHECK_POINT_COUNT( aPoints, CIRC_MAX_POINTS );

    aPoints.Point( CIRC_CENTER ).SetPosition( m_circle.getCenter() );
    aPoints.Point( CIRC_END ).SetPosition( m_circle.GetEnd() );
}


void EDA_CIRCLE_POINT_EDIT_BEHAVIOR::UpdateItem( const EDIT_POINT& aEditedPoint,
                                                 EDIT_POINTS& aPoints, COMMIT& aCommit,
                                                 std::vector<EDA_ITEM*>& aUpdatedItems )
{
    CHECK_POINT_COUNT( aPoints, CIRC_MAX_POINTS );

    const VECTOR2I& center = aPoints.Point( CIRC_CENTER ).GetPosition();
    const VECTOR2I& end = aPoints.Point( CIRC_END ).GetPosition();

    if( isModified( aEditedPoint, aPoints.Point( CIRC_CENTER ) ) )
    {
        m_circle.SetCenter( center );
    }
    else
    {
        m_circle.SetEnd( VECTOR2I( end.x, end.y ) );
    }
}


OPT_VECTOR2I
EDA_CIRCLE_POINT_EDIT_BEHAVIOR::Get45DegreeConstrainer( const EDIT_POINT& aEditedPoint,
                                                        EDIT_POINTS&      aPoints ) const
{
    return aPoints.Point( CIRC_CENTER ).GetPosition();
}


void EDA_BEZIER_POINT_EDIT_BEHAVIOR::MakePoints( EDIT_POINTS& aPoints )
{
    aPoints.AddPoint( m_bezier.GetStart() );
    aPoints.AddPoint( m_bezier.GetBezierC1() );
    aPoints.AddPoint( m_bezier.GetBezierC2() );
    aPoints.AddPoint( m_bezier.GetEnd() );

    aPoints.AddIndicatorLine( aPoints.Point( BEZIER_START ), aPoints.Point( BEZIER_CTRL_PT1 ) );
    aPoints.AddIndicatorLine( aPoints.Point( BEZIER_CTRL_PT2 ), aPoints.Point( BEZIER_END ) );
}


void EDA_BEZIER_POINT_EDIT_BEHAVIOR::UpdatePoints( EDIT_POINTS& aPoints )
{
    CHECK_POINT_COUNT( aPoints, BEZIER_MAX_POINTS );

    aPoints.Point( BEZIER_START ).SetPosition( m_bezier.GetStart() );
    aPoints.Point( BEZIER_CTRL_PT1 ).SetPosition( m_bezier.GetBezierC1() );
    aPoints.Point( BEZIER_CTRL_PT2 ).SetPosition( m_bezier.GetBezierC2() );
    aPoints.Point( BEZIER_END ).SetPosition( m_bezier.GetEnd() );
}


void EDA_BEZIER_POINT_EDIT_BEHAVIOR::UpdateItem( const EDIT_POINT& aEditedPoint,
                                                 EDIT_POINTS& aPoints, COMMIT& aCommit,
                                                 std::vector<EDA_ITEM*>& aUpdatedItems )
{
    CHECK_POINT_COUNT( aPoints, BEZIER_MAX_POINTS );

    if( isModified( aEditedPoint, aPoints.Point( BEZIER_START ) ) )
    {
        m_bezier.SetStart( aPoints.Point( BEZIER_START ).GetPosition() );
    }
    else if( isModified( aEditedPoint, aPoints.Point( BEZIER_CTRL_PT1 ) ) )
    {
        m_bezier.SetBezierC1( aPoints.Point( BEZIER_CTRL_PT1 ).GetPosition() );
    }
    else if( isModified( aEditedPoint, aPoints.Point( BEZIER_CTRL_PT2 ) ) )
    {
        m_bezier.SetBezierC2( aPoints.Point( BEZIER_CTRL_PT2 ).GetPosition() );
    }
    else if( isModified( aEditedPoint, aPoints.Point( BEZIER_END ) ) )
    {
        m_bezier.SetEnd( aPoints.Point( BEZIER_END ).GetPosition() );
    }

    m_bezier.RebuildBezierToSegmentsPointsList( m_maxError );
}


void EDA_TABLECELL_POINT_EDIT_BEHAVIOR::MakePoints( EDIT_POINTS& aPoints )
{
    aPoints.AddPoint( m_cell.GetEnd() - VECTOR2I( 0, m_cell.GetRectangleHeight() / 2 ) );
    aPoints.AddPoint( m_cell.GetEnd() - VECTOR2I( m_cell.GetRectangleWidth() / 2, 0 ) );
}


void EDA_TABLECELL_POINT_EDIT_BEHAVIOR::UpdatePoints( EDIT_POINTS& aPoints )
{
    aPoints.Point( COL_WIDTH )
            .SetPosition( m_cell.GetEnd() - VECTOR2I( 0, m_cell.GetRectangleHeight() / 2 ) );
    aPoints.Point( ROW_HEIGHT )
            .SetPosition( m_cell.GetEnd() - VECTOR2I( m_cell.GetRectangleWidth() / 2, 0 ) );
}