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0b2d4d4879
Recommendation is to avoid using the year nomenclature as this information is already encoded in the git repo. Avoids needing to repeatly update. Also updates AUTHORS.txt from current repo with contributor names
188 lines
4.2 KiB
C++
188 lines
4.2 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright The KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <preview_items/arc_geom_manager.h>
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#include <math/util.h> // for KiROUND
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#include <geometry/eda_angle.h>
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#include <trigo.h>
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using namespace KIGFX::PREVIEW;
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///< Snap an angle to the nearest 45 degrees
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static EDA_ANGLE snapAngle( const EDA_ANGLE& aAngle )
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{
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return ANGLE_45 * KiROUND( aAngle / ANGLE_45 );
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}
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bool ARC_GEOM_MANAGER::acceptPoint( const VECTOR2I& aPt )
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{
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switch( getStep() )
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{
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case SET_ORIGIN: return setOrigin( aPt );
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case SET_START: return setStart( aPt );
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case SET_ANGLE: return setEnd( aPt );
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case COMPLETE: return false;
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}
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return false;
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}
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void ARC_GEOM_MANAGER::SetClockwise( bool aCw )
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{
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m_clockwise = aCw;
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m_directionLocked = true;
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setGeometryChanged();
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}
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void ARC_GEOM_MANAGER::ToggleClockwise()
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{
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m_clockwise = !m_clockwise;
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m_directionLocked = true;
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setGeometryChanged();
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}
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VECTOR2I ARC_GEOM_MANAGER::GetOrigin() const
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{
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return m_origin;
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}
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VECTOR2I ARC_GEOM_MANAGER::GetStartRadiusEnd() const
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{
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VECTOR2I vec( static_cast<int>( m_radius ), 0 );
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RotatePoint( vec, -m_startAngle );
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return m_origin +vec;
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}
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VECTOR2I ARC_GEOM_MANAGER::GetEndRadiusEnd() const
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{
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VECTOR2I vec( static_cast<int>( m_radius ), 0 );
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RotatePoint( vec, -m_endAngle );
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return m_origin + vec;
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}
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double ARC_GEOM_MANAGER::GetRadius() const
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{
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return m_radius;
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}
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EDA_ANGLE ARC_GEOM_MANAGER::GetStartAngle() const
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{
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EDA_ANGLE angle = m_startAngle;
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if( m_clockwise )
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angle -= ANGLE_360;
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return -angle;
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}
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EDA_ANGLE ARC_GEOM_MANAGER::GetSubtended() const
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{
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EDA_ANGLE angle = m_endAngle - m_startAngle;
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if( m_endAngle <= m_startAngle )
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angle += ANGLE_360;
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if( m_clockwise )
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angle -= ANGLE_360;
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return -angle;
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}
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bool ARC_GEOM_MANAGER::setOrigin( const VECTOR2I& aOrigin )
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{
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m_origin = aOrigin;
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m_startAngle = ANGLE_0;
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m_endAngle = ANGLE_0;
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return true;
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}
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bool ARC_GEOM_MANAGER::setStart( const VECTOR2I& aEnd )
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{
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const VECTOR2I radVec = aEnd - m_origin;
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m_radius = radVec.EuclideanNorm();
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m_startAngle = EDA_ANGLE( radVec );
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if( m_angleSnap )
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m_startAngle = snapAngle( m_startAngle );
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// normalise to 0..360
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while( m_startAngle < ANGLE_0 )
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m_startAngle += ANGLE_360;
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m_endAngle = m_startAngle;
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return m_radius != 0.0;
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}
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bool ARC_GEOM_MANAGER::setEnd( const VECTOR2I& aCursor )
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{
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const VECTOR2I radVec = aCursor - m_origin;
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m_endAngle = EDA_ANGLE( radVec );
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if( m_angleSnap )
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m_endAngle = snapAngle( m_endAngle );
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// normalise to 0..360
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while( m_endAngle < ANGLE_0 )
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m_endAngle += ANGLE_360;
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if( !m_directionLocked )
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{
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EDA_ANGLE ccwAngle = m_endAngle - m_startAngle;
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if( m_endAngle <= m_startAngle )
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ccwAngle += ANGLE_360;
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EDA_ANGLE cwAngle = std::abs( ccwAngle - ANGLE_360 );
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if( std::min( ccwAngle, cwAngle ) >= ANGLE_90 )
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m_directionLocked = true;
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else
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m_clockwise = cwAngle < ccwAngle;
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}
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else if( std::abs( GetSubtended() ) < ANGLE_90 )
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{
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m_directionLocked = false;
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}
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// if the end is the same as the start, this is a bad point
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return m_endAngle != m_startAngle;
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}
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