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604 lines
17 KiB
604 lines
17 KiB
/*
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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 (C) 2017 Jean-Pierre Charras, jp.charras at wanadoo.fr
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* Copyright (C) 2004-2020 KiCad Developers, see AUTHORS.txt for contributors.
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* Copyright (C) 2019 CERN
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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 <fctsys.h>
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#include <gr_basic.h>
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#include <macros.h>
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#include <sch_draw_panel.h>
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#include <plotter.h>
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#include <trigo.h>
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#include <base_units.h>
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#include <msgpanel.h>
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#include <bitmaps.h>
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#include <math/util.h> // for KiROUND
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#include <eda_draw_frame.h>
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#include <general.h>
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#include <lib_arc.h>
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#include <transform.h>
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#include <settings/color_settings.h>
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#include <status_popup.h>
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// Helper function
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static inline wxPoint twoPointVector( const wxPoint &startPoint, const wxPoint &endPoint )
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{
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return endPoint - startPoint;
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}
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LIB_ARC::LIB_ARC( LIB_PART* aParent ) : LIB_ITEM( LIB_ARC_T, aParent )
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{
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m_Radius = 0;
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m_t1 = 0;
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m_t2 = 0;
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m_Width = 0;
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m_Fill = NO_FILL;
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m_isFillable = true;
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m_editState = 0;
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}
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bool LIB_ARC::HitTest( const wxPoint& aRefPoint, int aAccuracy ) const
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{
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int mindist = std::max( aAccuracy + GetPenWidth() / 2,
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Mils2iu( MINIMUM_SELECTION_DISTANCE ) );
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wxPoint relativePosition = aRefPoint;
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relativePosition.y = -relativePosition.y; // reverse Y axis
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int distance = KiROUND( GetLineLength( m_Pos, relativePosition ) );
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if( abs( distance - m_Radius ) > mindist )
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return false;
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// We are on the circle, ensure we are only on the arc, i.e. between
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// m_ArcStart and m_ArcEnd
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wxPoint startEndVector = twoPointVector( m_ArcStart, m_ArcEnd );
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wxPoint startRelativePositionVector = twoPointVector( m_ArcStart, relativePosition );
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wxPoint centerStartVector = twoPointVector( m_Pos, m_ArcStart );
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wxPoint centerEndVector = twoPointVector( m_Pos, m_ArcEnd );
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wxPoint centerRelativePositionVector = twoPointVector( m_Pos, relativePosition );
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// Compute the cross product to check if the point is in the sector
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double crossProductStart = CrossProduct( centerStartVector, centerRelativePositionVector );
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double crossProductEnd = CrossProduct( centerEndVector, centerRelativePositionVector );
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// The cross products need to be exchanged, depending on which side the center point
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// relative to the start point to end point vector lies
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if( CrossProduct( startEndVector, startRelativePositionVector ) < 0 )
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{
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std::swap( crossProductStart, crossProductEnd );
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}
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// When the cross products have a different sign, the point lies in sector
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// also check, if the reference is near start or end point
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return HitTestPoints( m_ArcStart, relativePosition, MINIMUM_SELECTION_DISTANCE ) ||
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HitTestPoints( m_ArcEnd, relativePosition, MINIMUM_SELECTION_DISTANCE ) ||
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( crossProductStart <= 0 && crossProductEnd >= 0 );
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}
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bool LIB_ARC::HitTest( const EDA_RECT& aRect, bool aContained, int aAccuracy ) const
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{
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if( m_Flags & ( STRUCT_DELETED | SKIP_STRUCT ) )
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return false;
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wxPoint center = DefaultTransform.TransformCoordinate( GetPosition() );
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int radius = GetRadius();
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int lineWidth = GetWidth();
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EDA_RECT sel = aRect ;
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if ( aAccuracy )
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sel.Inflate( aAccuracy );
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if( aContained )
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return sel.Contains( GetBoundingBox() );
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EDA_RECT arcRect = GetBoundingBox().Common( sel );
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/* All following tests must pass:
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* 1. Rectangle must intersect arc BoundingBox
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* 2. Rectangle must cross the outside of the arc
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*/
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return arcRect.Intersects( sel ) && arcRect.IntersectsCircleEdge( center, radius, lineWidth );
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}
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EDA_ITEM* LIB_ARC::Clone() const
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{
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return new LIB_ARC( *this );
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}
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int LIB_ARC::compare( const LIB_ITEM& aOther, LIB_ITEM::COMPARE_FLAGS aCompareFlags ) const
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{
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wxASSERT( aOther.Type() == LIB_ARC_T );
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int retv = LIB_ITEM::compare( aOther );
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if( retv )
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return retv;
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const LIB_ARC* tmp = ( LIB_ARC* ) &aOther;
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if( m_Pos.x != tmp->m_Pos.x )
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return m_Pos.x - tmp->m_Pos.x;
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if( m_Pos.y != tmp->m_Pos.y )
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return m_Pos.y - tmp->m_Pos.y;
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if( m_t1 != tmp->m_t1 )
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return m_t1 - tmp->m_t1;
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if( m_t2 != tmp->m_t2 )
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return m_t2 - tmp->m_t2;
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return 0;
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}
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void LIB_ARC::Offset( const wxPoint& aOffset )
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{
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m_Pos += aOffset;
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m_ArcStart += aOffset;
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m_ArcEnd += aOffset;
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}
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void LIB_ARC::MoveTo( const wxPoint& aPosition )
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{
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wxPoint offset = aPosition - m_Pos;
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m_Pos = aPosition;
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m_ArcStart += offset;
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m_ArcEnd += offset;
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}
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void LIB_ARC::MirrorHorizontal( const wxPoint& aCenter )
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{
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m_Pos.x -= aCenter.x;
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m_Pos.x *= -1;
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m_Pos.x += aCenter.x;
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m_ArcStart.x -= aCenter.x;
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m_ArcStart.x *= -1;
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m_ArcStart.x += aCenter.x;
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m_ArcEnd.x -= aCenter.x;
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m_ArcEnd.x *= -1;
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m_ArcEnd.x += aCenter.x;
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std::swap( m_ArcStart, m_ArcEnd );
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std::swap( m_t1, m_t2 );
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m_t1 = 1800 - m_t1;
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m_t2 = 1800 - m_t2;
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if( m_t1 > 3600 || m_t2 > 3600 )
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{
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m_t1 -= 3600;
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m_t2 -= 3600;
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}
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else if( m_t1 < -3600 || m_t2 < -3600 )
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{
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m_t1 += 3600;
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m_t2 += 3600;
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}
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}
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void LIB_ARC::MirrorVertical( const wxPoint& aCenter )
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{
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m_Pos.y -= aCenter.y;
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m_Pos.y *= -1;
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m_Pos.y += aCenter.y;
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m_ArcStart.y -= aCenter.y;
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m_ArcStart.y *= -1;
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m_ArcStart.y += aCenter.y;
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m_ArcEnd.y -= aCenter.y;
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m_ArcEnd.y *= -1;
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m_ArcEnd.y += aCenter.y;
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std::swap( m_ArcStart, m_ArcEnd );
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std::swap( m_t1, m_t2 );
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m_t1 = - m_t1;
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m_t2 = - m_t2;
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if( m_t1 > 3600 || m_t2 > 3600 )
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{
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m_t1 -= 3600;
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m_t2 -= 3600;
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}
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else if( m_t1 < -3600 || m_t2 < -3600 )
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{
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m_t1 += 3600;
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m_t2 += 3600;
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}
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}
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void LIB_ARC::Rotate( const wxPoint& aCenter, bool aRotateCCW )
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{
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int rot_angle = aRotateCCW ? -900 : 900;
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RotatePoint( &m_Pos, aCenter, rot_angle );
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RotatePoint( &m_ArcStart, aCenter, rot_angle );
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RotatePoint( &m_ArcEnd, aCenter, rot_angle );
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m_t1 -= rot_angle;
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m_t2 -= rot_angle;
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if( m_t1 > 3600 || m_t2 > 3600 )
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{
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m_t1 -= 3600;
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m_t2 -= 3600;
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}
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else if( m_t1 < -3600 || m_t2 < -3600 )
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{
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m_t1 += 3600;
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m_t2 += 3600;
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}
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}
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void LIB_ARC::Plot( PLOTTER* aPlotter, const wxPoint& aOffset, bool aFill,
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const TRANSFORM& aTransform )
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{
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wxASSERT( aPlotter != NULL );
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int t1 = m_t1;
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int t2 = m_t2;
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wxPoint pos = aTransform.TransformCoordinate( m_Pos ) + aOffset;
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aTransform.MapAngles( &t1, &t2 );
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if( aFill && m_Fill == FILLED_WITH_BG_BODYCOLOR )
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{
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aPlotter->SetColor( aPlotter->RenderSettings()->GetLayerColor( LAYER_DEVICE_BACKGROUND ) );
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aPlotter->Arc( pos, -t2, -t1, m_Radius, FILLED_WITH_BG_BODYCOLOR, 0 );
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}
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bool already_filled = m_Fill == FILLED_WITH_BG_BODYCOLOR;
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int pen_size = GetPenWidth();
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if( !already_filled || pen_size > 0 )
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{
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pen_size = std::max( pen_size, aPlotter->RenderSettings()->GetDefaultPenWidth() );
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aPlotter->SetColor( aPlotter->RenderSettings()->GetLayerColor( LAYER_DEVICE ) );
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aPlotter->Arc( pos, -t2, -t1, m_Radius, already_filled ? NO_FILL : m_Fill, pen_size );
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}
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}
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int LIB_ARC::GetPenWidth() const
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{
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// Historically 0 meant "default width" and negative numbers meant "don't stroke".
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if( m_Width < 0 && GetFillMode() != NO_FILL )
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return 0;
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else
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return std::max( m_Width, 1 );
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}
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void LIB_ARC::print( RENDER_SETTINGS* aSettings, const wxPoint& aOffset, void* aData,
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const TRANSFORM& aTransform )
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{
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bool forceNoFill = static_cast<bool>( aData );
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int penWidth = GetPenWidth();
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if( forceNoFill && m_Fill != NO_FILL && penWidth == 0 )
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return;
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wxDC* DC = aSettings->GetPrintDC();
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wxPoint pos1, pos2, posc;
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COLOR4D color = aSettings->GetLayerColor( LAYER_DEVICE );
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pos1 = aTransform.TransformCoordinate( m_ArcEnd ) + aOffset;
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pos2 = aTransform.TransformCoordinate( m_ArcStart ) + aOffset;
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posc = aTransform.TransformCoordinate( m_Pos ) + aOffset;
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int pt1 = m_t1;
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int pt2 = m_t2;
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bool swap = aTransform.MapAngles( &pt1, &pt2 );
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if( swap )
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{
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std::swap( pos1.x, pos2.x );
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std::swap( pos1.y, pos2.y );
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}
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if( forceNoFill || m_Fill == NO_FILL )
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{
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penWidth = std::max( penWidth, aSettings->GetDefaultPenWidth() );
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GRArc1( nullptr, DC, pos1.x, pos1.y, pos2.x, pos2.y, posc.x, posc.y, penWidth, color );
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}
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else
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{
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if( m_Fill == FILLED_WITH_BG_BODYCOLOR )
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color = aSettings->GetLayerColor( LAYER_DEVICE_BACKGROUND );
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GRFilledArc( nullptr, DC, posc.x, posc.y, pt1, pt2, m_Radius, penWidth, color, color );
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}
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}
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const EDA_RECT LIB_ARC::GetBoundingBox() const
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{
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int minX, minY, maxX, maxY, angleStart, angleEnd;
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EDA_RECT rect;
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wxPoint nullPoint, startPos, endPos, centerPos;
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wxPoint normStart = m_ArcStart - m_Pos;
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wxPoint normEnd = m_ArcEnd - m_Pos;
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if( ( normStart == nullPoint ) || ( normEnd == nullPoint ) || ( m_Radius == 0 ) )
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{
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wxLogDebug( wxT("Invalid arc drawing definition, center(%d, %d), start(%d, %d), "
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"end(%d, %d), radius %d" ),
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m_Pos.x, m_Pos.y, m_ArcStart.x, m_ArcStart.y, m_ArcEnd.x,
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m_ArcEnd.y, m_Radius );
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return rect;
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}
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endPos = DefaultTransform.TransformCoordinate( m_ArcEnd );
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startPos = DefaultTransform.TransformCoordinate( m_ArcStart );
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centerPos = DefaultTransform.TransformCoordinate( m_Pos );
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angleStart = m_t1;
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angleEnd = m_t2;
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if( DefaultTransform.MapAngles( &angleStart, &angleEnd ) )
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{
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std::swap( endPos.x, startPos.x );
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std::swap( endPos.y, startPos.y );
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}
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/* Start with the start and end point of the arc. */
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minX = std::min( startPos.x, endPos.x );
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minY = std::min( startPos.y, endPos.y );
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maxX = std::max( startPos.x, endPos.x );
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maxY = std::max( startPos.y, endPos.y );
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/* Zero degrees is a special case. */
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if( angleStart == 0 )
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maxX = centerPos.x + m_Radius;
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/* Arc end angle wrapped passed 360. */
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if( angleStart > angleEnd )
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angleEnd += 3600;
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if( angleStart <= 900 && angleEnd >= 900 ) /* 90 deg */
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maxY = centerPos.y + m_Radius;
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if( angleStart <= 1800 && angleEnd >= 1800 ) /* 180 deg */
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minX = centerPos.x - m_Radius;
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if( angleStart <= 2700 && angleEnd >= 2700 ) /* 270 deg */
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minY = centerPos.y - m_Radius;
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if( angleStart <= 3600 && angleEnd >= 3600 ) /* 0 deg */
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maxX = centerPos.x + m_Radius;
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rect.SetOrigin( minX, minY );
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rect.SetEnd( maxX, maxY );
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rect.Inflate( ( GetPenWidth() / 2 ) + 1 );
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return rect;
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}
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void LIB_ARC::GetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, std::vector<MSG_PANEL_ITEM>& aList )
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{
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wxString msg;
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EDA_RECT bBox = GetBoundingBox();
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LIB_ITEM::GetMsgPanelInfo( aFrame, aList );
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msg = MessageTextFromValue( aFrame->GetUserUnits(), m_Width, true );
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aList.emplace_back( _( "Line Width" ), msg, BLUE );
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msg.Printf( wxT( "(%d, %d, %d, %d)" ), bBox.GetOrigin().x,
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bBox.GetOrigin().y, bBox.GetEnd().x, bBox.GetEnd().y );
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aList.emplace_back( _( "Bounding Box" ), msg, BROWN );
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}
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wxString LIB_ARC::GetSelectMenuText( EDA_UNITS aUnits ) const
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{
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return wxString::Format( _( "Arc center (%s, %s), radius %s" ),
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MessageTextFromValue( aUnits, m_Pos.x ),
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MessageTextFromValue( aUnits, m_Pos.y ),
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MessageTextFromValue( aUnits, m_Radius ) );
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}
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BITMAP_DEF LIB_ARC::GetMenuImage() const
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{
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return add_arc_xpm;
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}
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void LIB_ARC::BeginEdit( const wxPoint aPosition )
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{
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m_ArcStart = m_ArcEnd = aPosition;
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m_editState = 1;
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}
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void LIB_ARC::CalcEdit( const wxPoint& aPosition )
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{
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#define sq( x ) pow( x, 2 )
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// Edit state 0: drawing: place ArcStart
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// Edit state 1: drawing: place ArcEnd (center calculated for 90-degree subtended angle)
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// Edit state 2: point editing: move ArcStart (center calculated for invariant subtended angle)
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// Edit state 3: point editing: move ArcEnd (center calculated for invariant subtended angle)
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// Edit state 4: point editing: move center
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switch( m_editState )
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{
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case 0:
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m_ArcStart = aPosition;
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m_ArcEnd = aPosition;
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m_Pos = aPosition;
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m_Radius = 0;
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m_t1 = 0;
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m_t2 = 0;
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return;
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case 1:
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m_ArcEnd = aPosition;
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m_Radius = KiROUND( sqrt( pow( GetLineLength( m_ArcStart, m_ArcEnd ), 2 ) / 2.0 ) );
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break;
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case 2:
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case 3:
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{
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wxPoint v = m_ArcStart - m_ArcEnd;
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double chordBefore = sq( v.x ) + sq( v.y );
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if( m_editState == 2 )
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m_ArcStart = aPosition;
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else
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m_ArcEnd = aPosition;
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v = m_ArcStart - m_ArcEnd;
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double chordAfter = sq( v.x ) + sq( v.y );
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double ratio = chordAfter / chordBefore;
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if( ratio > 0 )
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{
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m_Radius = int( sqrt( m_Radius * m_Radius * ratio ) ) + 1;
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m_Radius = std::max( m_Radius, int( sqrt( chordAfter ) / 2 ) + 1 );
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}
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break;
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}
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case 4:
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{
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double chordA = GetLineLength( m_ArcStart, aPosition );
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double chordB = GetLineLength( m_ArcEnd, aPosition );
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m_Radius = int( ( chordA + chordB ) / 2.0 ) + 1;
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break;
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}
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}
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// Calculate center based on start, end, and radius
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//
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// Let 'l' be the length of the chord and 'm' the middle point of the chord
|
|
double l = GetLineLength( m_ArcStart, m_ArcEnd );
|
|
wxPoint m = ( m_ArcStart + m_ArcEnd ) / 2;
|
|
|
|
// Calculate 'd', the vector from the chord midpoint to the center
|
|
wxPoint d;
|
|
d.x = KiROUND( sqrt( sq( m_Radius ) - sq( l/2 ) ) * ( m_ArcStart.y - m_ArcEnd.y ) / l );
|
|
d.y = KiROUND( sqrt( sq( m_Radius ) - sq( l/2 ) ) * ( m_ArcEnd.x - m_ArcStart.x ) / l );
|
|
|
|
wxPoint c1 = m + d;
|
|
wxPoint c2 = m - d;
|
|
|
|
// Solution gives us 2 centers; we need to pick one:
|
|
switch( m_editState )
|
|
{
|
|
case 1:
|
|
{
|
|
// Keep center clockwise from chord while drawing
|
|
wxPoint chordVector = twoPointVector( m_ArcStart, m_ArcEnd );
|
|
double chordAngle = ArcTangente( chordVector.y, chordVector.x );
|
|
NORMALIZE_ANGLE_POS( chordAngle );
|
|
|
|
wxPoint c1Test = c1;
|
|
RotatePoint( &c1Test, m_ArcStart, -chordAngle );
|
|
|
|
m_Pos = c1Test.x > 0 ? c2 : c1;
|
|
}
|
|
break;
|
|
|
|
case 2:
|
|
case 3:
|
|
// Pick the one closer to the old center
|
|
m_Pos = ( GetLineLength( c1, m_Pos ) < GetLineLength( c2, m_Pos ) ) ? c1 : c2;
|
|
break;
|
|
|
|
case 4:
|
|
// Pick the one closer to the mouse position
|
|
m_Pos = ( GetLineLength( c1, aPosition ) < GetLineLength( c2, aPosition ) ) ? c1 : c2;
|
|
break;
|
|
}
|
|
|
|
CalcRadiusAngles();
|
|
}
|
|
|
|
|
|
void LIB_ARC::CalcRadiusAngles()
|
|
{
|
|
wxPoint centerStartVector = twoPointVector( m_Pos, m_ArcStart );
|
|
wxPoint centerEndVector = twoPointVector( m_Pos, m_ArcEnd );
|
|
|
|
m_Radius = KiROUND( EuclideanNorm( centerStartVector ) );
|
|
|
|
// Angles in eeschema are still integers
|
|
m_t1 = KiROUND( ArcTangente( centerStartVector.y, centerStartVector.x ) );
|
|
m_t2 = KiROUND( ArcTangente( centerEndVector.y, centerEndVector.x ) );
|
|
|
|
NORMALIZE_ANGLE_POS( m_t1 );
|
|
NORMALIZE_ANGLE_POS( m_t2 ); // angles = 0 .. 3600
|
|
|
|
// Restrict angle to less than 180 to avoid PBS display mirror Trace because it is
|
|
// assumed that the arc is less than 180 deg to find orientation after rotate or mirror.
|
|
if( (m_t2 - m_t1) > 1800 )
|
|
m_t2 -= 3600;
|
|
else if( (m_t2 - m_t1) <= -1800 )
|
|
m_t2 += 3600;
|
|
|
|
while( (m_t2 - m_t1) >= 1800 )
|
|
{
|
|
m_t2--;
|
|
m_t1++;
|
|
}
|
|
|
|
while( (m_t1 - m_t2) >= 1800 )
|
|
{
|
|
m_t2++;
|
|
m_t1--;
|
|
}
|
|
|
|
NORMALIZE_ANGLE_POS( m_t1 );
|
|
|
|
if( !IsMoving() )
|
|
NORMALIZE_ANGLE_POS( m_t2 );
|
|
}
|
|
|
|
|
|
VECTOR2I LIB_ARC::CalcMidPoint() const
|
|
{
|
|
VECTOR2D midPoint;
|
|
double startAngle = static_cast<double>( m_t1 ) / 10.0;
|
|
double endAngle = static_cast<double>( m_t2 ) / 10.0;
|
|
|
|
if( endAngle < startAngle )
|
|
endAngle -= 360.0;
|
|
|
|
double midPointAngle = ( ( endAngle - startAngle ) / 2.0 ) + startAngle;
|
|
double x = cos( DEG2RAD( midPointAngle ) ) * m_Radius;
|
|
double y = sin( DEG2RAD( midPointAngle ) ) * m_Radius;
|
|
|
|
midPoint.x = KiROUND( x ) + m_Pos.x;
|
|
midPoint.y = KiROUND( y ) + m_Pos.y;
|
|
|
|
return midPoint;
|
|
}
|