lib_shape.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2017 Jean-Pierre Charras, jp.charras at wanadoo.fr
 * Copyright (C) 2004-2022 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 <sch_draw_panel.h>
#include <plotters/plotter.h>
#include <macros.h>
#include <base_units.h>
#include <widgets/msgpanel.h>
#include <bitmaps.h>
#include <eda_draw_frame.h>
#include <general.h>
#include <lib_shape.h>
#include "plotters/plotter.h"
 
 
LIB_SHAPE::LIB_SHAPE( LIB_SYMBOL* aParent, SHAPE_T aShape, int aLineWidth, FILL_T aFillType,
 KICAD_T aType ) :
 LIB_ITEM( aType, aParent ),
 EDA_SHAPE( aShape, aLineWidth, aFillType )
{
 m_editState = 0;
}
 
 
bool LIB_SHAPE::HitTest( const VECTOR2I& aPosRef, int aAccuracy ) const
{
 if( aAccuracy < schIUScale.MilsToIU( MINIMUM_SELECTION_DISTANCE ) )
 aAccuracy = schIUScale.MilsToIU( MINIMUM_SELECTION_DISTANCE );
 
 return hitTest( DefaultTransform.TransformCoordinate( aPosRef ), aAccuracy );
}
 
 
bool LIB_SHAPE::HitTest( const BOX2I& aRect, bool aContained, int aAccuracy ) const
{
 if( m_flags & (STRUCT_DELETED | SKIP_STRUCT ) )
 return false;
 
 return hitTest( DefaultTransform.TransformCoordinate( aRect ), aContained, aAccuracy );
}
 
 
EDA_ITEM* LIB_SHAPE::Clone() const
{
 return new LIB_SHAPE( *this );
}
 
 
int LIB_SHAPE::compare( const LIB_ITEM& aOther, int aCompareFlags ) const
{
 int retv = LIB_ITEM::compare( aOther, aCompareFlags );
 
 if( retv )
 return retv;
 
 return EDA_SHAPE::Compare( &static_cast<const LIB_SHAPE&>( aOther ) );
}
 
 
void LIB_SHAPE::Offset( const VECTOR2I& aOffset )
{
 move( aOffset );
}
 
 
void LIB_SHAPE::MoveTo( const VECTOR2I& aPosition )
{
 setPosition( aPosition );
}
 
 
void LIB_SHAPE::Normalize()
{
 if( GetShape() == SHAPE_T::RECT )
 {
 VECTOR2I size = GetEnd() - GetPosition();
 
 if( size.y > 0 )
 {
 SetStartY( GetStartY() + size.y );
 SetEndY( GetStartY() - size.y );
 }
 
 if( size.x < 0 )
 {
 SetStartX( GetStartX() + size.x );
 SetEndX( GetStartX() - size.x );
 }
 }
}
 
 
void LIB_SHAPE::MirrorHorizontal( const VECTOR2I& aCenter )
{
 flip( aCenter, true );
}
 
 
void LIB_SHAPE::MirrorVertical( const VECTOR2I& aCenter )
{
 flip( aCenter, false );
}
 
 
void LIB_SHAPE::Rotate( const VECTOR2I& aCenter, bool aRotateCCW )
{
 EDA_ANGLE rot_angle = aRotateCCW ? -ANGLE_90 : ANGLE_90;
 
 rotate( aCenter, rot_angle );
}
 
 
void LIB_SHAPE::Plot( PLOTTER* aPlotter, bool aBackground, const VECTOR2I& aOffset,
 const TRANSFORM& aTransform, bool aDimmed ) const
{
 if( IsPrivate() )
 return;
 
 VECTOR2I start = aTransform.TransformCoordinate( m_start ) + aOffset;
 VECTOR2I end = aTransform.TransformCoordinate( m_end ) + aOffset;
 VECTOR2I center = aTransform.TransformCoordinate( getCenter() ) + aOffset;
 
 static std::vector<VECTOR2I> cornerList;
 
 if( GetShape() == SHAPE_T::POLY )
 {
 const SHAPE_LINE_CHAIN& poly = m_poly.Outline( 0 );
 cornerList.clear();
 
 for( const VECTOR2I& pt : poly.CPoints() )
 cornerList.push_back( aTransform.TransformCoordinate( pt ) + aOffset );
 }
 else if( GetShape() == SHAPE_T::BEZIER )
 {
 cornerList.clear();
 
 for( const VECTOR2I& pt : m_bezierPoints )
 cornerList.push_back( aTransform.TransformCoordinate( pt ) + aOffset );
 }
 else if( GetShape() == SHAPE_T::ARC )
 {
 EDA_ANGLE t1, t2;
 
 CalcArcAngles( t1, t2 );
 
 // N.B. The order of evaluation is critical here as MapAngles will modify t1, t2
 // and the Normalize routine depends on these modifications for the correct output
 bool transformed = aTransform.MapAngles( &t1, &t2 );
 EDA_ANGLE arc_angle = ( t1 - t2 ).Normalize180();
 bool transformed2 = ( arc_angle > ANGLE_0 ) && ( arc_angle < ANGLE_180 );
 
 if( transformed != transformed2 )
 std::swap( start, end );
 }
 
 int penWidth;
 COLOR4D color = GetStroke().GetColor();
 PLOT_DASH_TYPE lineStyle = GetStroke().GetPlotStyle();
 FILL_T fill = m_fill;
 
 if( aBackground )
 {
 if( !aPlotter->GetColorMode() )
 return;
 
 switch( m_fill )
 {
 case FILL_T::FILLED_SHAPE:
 return;
 
 case FILL_T::FILLED_WITH_COLOR:
 color = GetFillColor();
 break;
 
 case FILL_T::FILLED_WITH_BG_BODYCOLOR:
 color = aPlotter->RenderSettings()->GetLayerColor( LAYER_DEVICE_BACKGROUND );
 break;
 
 default:
 return;
 }
 
 penWidth = 0;
 lineStyle = PLOT_DASH_TYPE::SOLID;
 }
 else
 {
 if( !aPlotter->GetColorMode() || color == COLOR4D::UNSPECIFIED )
 color = aPlotter->RenderSettings()->GetLayerColor( LAYER_DEVICE );
 
 if( lineStyle == PLOT_DASH_TYPE::DEFAULT )
 lineStyle = PLOT_DASH_TYPE::SOLID;
 
 if( m_fill == FILL_T::FILLED_SHAPE )
 fill = m_fill;
 else
 fill = FILL_T::NO_FILL;
 
 penWidth = GetEffectivePenWidth( aPlotter->RenderSettings() );
 }
 
 COLOR4D bg = aPlotter->RenderSettings()->GetBackgroundColor();
 
 if( bg == COLOR4D::UNSPECIFIED || !aPlotter->GetColorMode() )
 bg = COLOR4D::WHITE;
 
 if( aDimmed )
 {
 color.Desaturate( );
 color = color.Mix( bg, 0.5f );
 }
 
 aPlotter->SetColor( color );
 aPlotter->SetDash( penWidth, lineStyle );
 
 switch( GetShape() )
 {
 case SHAPE_T::ARC:
 {
 // In some plotters (not all) the arc is approximated by segments, and
 // a error max is needed. We try to approximate by 360/5 segments by 360 deg
 int arc2segment_error = CircleToEndSegmentDeltaRadius( GetRadius(), 360/5 );
 aPlotter->Arc( center, start, end, fill, penWidth, arc2segment_error );
 }
 break;
 
 case SHAPE_T::CIRCLE:
 aPlotter->Circle( center, GetRadius() * 2, fill, penWidth );
 break;
 
 case SHAPE_T::RECT:
 aPlotter->Rect( start, end, fill, penWidth );
 break;
 
 case SHAPE_T::POLY:
 case SHAPE_T::BEZIER:
 aPlotter->PlotPoly( cornerList, fill, penWidth );
 break;
 
 default:
 UNIMPLEMENTED_FOR( SHAPE_T_asString() );
 }
 
 aPlotter->SetDash( penWidth, PLOT_DASH_TYPE::SOLID );
}
 
 
int LIB_SHAPE::GetPenWidth() const
{
 return GetWidth();
}
 
 
void LIB_SHAPE::print( const RENDER_SETTINGS* aSettings, const VECTOR2I& aOffset, void* aData,
 const TRANSFORM& aTransform, bool aDimmed )
{
 if( IsPrivate() )
 return;
 
 bool forceNoFill = static_cast<bool>( aData );
 int penWidth = GetEffectivePenWidth( aSettings );
 
 if( forceNoFill && IsFilled() && penWidth == 0 )
 return;
 
 wxDC* DC = aSettings->GetPrintDC();
 VECTOR2I pt1 = aTransform.TransformCoordinate( m_start ) + aOffset;
 VECTOR2I pt2 = aTransform.TransformCoordinate( m_end ) + aOffset;
 VECTOR2I c;
 COLOR4D color = GetStroke().GetColor();
 
 if( color == COLOR4D::UNSPECIFIED )
 color = aSettings->GetLayerColor( LAYER_DEVICE );
 
 COLOR4D bg = aSettings->GetBackgroundColor();
 
 if( bg == COLOR4D::UNSPECIFIED || GetGRForceBlackPenState() )
 bg = COLOR4D::WHITE;
 
 if( aDimmed )
 {
 color.Desaturate( );
 color = color.Mix( bg, 0.5f );
 }
 
 unsigned ptCount = 0;
 VECTOR2I* buffer = nullptr;
 
 if( GetShape() == SHAPE_T::POLY )
 {
 const SHAPE_LINE_CHAIN& poly = m_poly.Outline( 0 );
 
 ptCount = poly.GetPointCount();
 buffer = new VECTOR2I[ptCount];
 
 for( unsigned ii = 0; ii < ptCount; ++ii )
 buffer[ii] = aTransform.TransformCoordinate( poly.CPoint( ii ) ) + aOffset;
 }
 else if( GetShape() == SHAPE_T::BEZIER )
 {
 ptCount = m_bezierPoints.size();
 buffer = new VECTOR2I[ptCount];
 
 for( size_t ii = 0; ii < ptCount; ++ii )
 buffer[ii] = aTransform.TransformCoordinate( m_bezierPoints[ii] ) + aOffset;
 }
 else if( GetShape() == SHAPE_T::ARC )
 {
 c = aTransform.TransformCoordinate( getCenter() ) + aOffset;
 
 EDA_ANGLE t1, t2;
 
 CalcArcAngles( t1, t2 );
 
 // N.B. The order of evaluation is critical here as MapAngles will modify t1, t2
 // and the Normalize routine depends on these modifications for the correct output
 bool transformed = aTransform.MapAngles( &t1, &t2 );
 EDA_ANGLE arc_angle = ( t1 - t2 ).Normalize180();
 bool transformed2 = ( arc_angle > ANGLE_0 ) && ( arc_angle < ANGLE_180 );
 
 if( transformed == transformed2 )
 std::swap( pt1, pt2 );
 }
 
 COLOR4D fillColor = COLOR4D::UNSPECIFIED;
 
 if( !forceNoFill )
 {
 if( GetFillMode() == FILL_T::FILLED_SHAPE )
 fillColor = color;
 else if( GetFillMode() == FILL_T::FILLED_WITH_BG_BODYCOLOR )
 fillColor = aSettings->GetLayerColor( LAYER_DEVICE_BACKGROUND );
 else if( GetFillMode() == FILL_T::FILLED_WITH_COLOR )
 fillColor = GetFillColor();
 }
 
 if( fillColor != COLOR4D::UNSPECIFIED )
 {
 if( aDimmed )
 {
 fillColor.Desaturate( );
 fillColor = fillColor.Mix( bg, 0.5f );
 }
 
 switch( GetShape() )
 {
 case SHAPE_T::ARC:
 GRFilledArc( DC, pt1, pt2, c, 0, fillColor, fillColor );
 break;
 
 case SHAPE_T::CIRCLE:
 GRFilledCircle( DC, pt1, GetRadius(), 0, fillColor, fillColor );
 break;
 
 case SHAPE_T::RECT:
 GRFilledRect( DC, pt1, pt2, 0, fillColor, fillColor );
 break;
 
 case SHAPE_T::POLY:
 GRPoly( DC, ptCount, buffer, true, 0, fillColor, fillColor );
 break;
 
 case SHAPE_T::BEZIER:
 GRPoly( DC, ptCount, buffer, true, 0, fillColor, fillColor );
 break;
 
 default:
 UNIMPLEMENTED_FOR( SHAPE_T_asString() );
 }
 }
 else
 {
 penWidth = std::max( penWidth, aSettings->GetDefaultPenWidth() );
 }
 
 if( penWidth > 0 )
 {
 if( GetEffectiveLineStyle() == PLOT_DASH_TYPE::SOLID )
 {
 switch( GetShape() )
 {
 case SHAPE_T::ARC:
 GRArc( DC, pt1, pt2, c, penWidth, color );
 break;
 
 case SHAPE_T::CIRCLE:
 GRCircle( DC, pt1, GetRadius(), penWidth, color );
 break;
 
 case SHAPE_T::RECT:
 GRRect( DC, pt1, pt2, penWidth, color );
 break;
 
 case SHAPE_T::POLY:
 GRPoly( DC, ptCount, buffer, false, penWidth, color, color );
 break;
 
  case SHAPE_T::BEZIER:
 GRPoly( DC, ptCount, buffer, false, penWidth, color, color );
 break;
 
 default:
 UNIMPLEMENTED_FOR( SHAPE_T_asString() );
 }
 }
 else
 {
 std::vector<SHAPE*> shapes = MakeEffectiveShapes( true );
 
 for( SHAPE* shape : shapes )
 {
 STROKE_PARAMS::Stroke( shape, GetEffectiveLineStyle(), penWidth, aSettings,
 [&]( const VECTOR2I& a, const VECTOR2I& b )
 {
 VECTOR2I pts = aTransform.TransformCoordinate( a ) + aOffset;
 VECTOR2I pte = aTransform.TransformCoordinate( b ) + aOffset;
 GRLine( DC, pts.x, pts.y, pte.x, pte.y, penWidth, color );
 } );
 }
 
 for( SHAPE* shape : shapes )
 delete shape;
 }
 }
 
 delete[] buffer;
}
 
 
const BOX2I LIB_SHAPE::GetBoundingBox() const
{
 BOX2I bbox = getBoundingBox();
 
 bbox.RevertYAxis();
 
 return bbox;
}
 
 
void LIB_SHAPE::GetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, std::vector<MSG_PANEL_ITEM>& aList )
{
 LIB_ITEM::GetMsgPanelInfo( aFrame, aList );
 
 ShapeGetMsgPanelInfo( aFrame, aList );
}
 
 
wxString LIB_SHAPE::GetItemDescription( UNITS_PROVIDER* aUnitsProvider ) const
{
 switch( GetShape() )
 {
 case SHAPE_T::ARC:
 return wxString::Format( _( "Arc, radius %s" ),
 aUnitsProvider->MessageTextFromValue( GetRadius() ) );
 
 case SHAPE_T::CIRCLE:
 return wxString::Format( _( "Circle, radius %s" ),
 aUnitsProvider->MessageTextFromValue( GetRadius() ) );
 
 case SHAPE_T::RECT:
 return wxString::Format( _( "Rectangle, width %s height %s" ),
 aUnitsProvider->MessageTextFromValue( std::abs( m_start.x - m_end.x ) ),
 aUnitsProvider->MessageTextFromValue( std::abs( m_start.y - m_end.y ) ) );
 
 case SHAPE_T::POLY:
 return wxString::Format( _( "Polyline, %d points" ),
 int( m_poly.Outline( 0 ).GetPointCount() ) );
 
 case SHAPE_T::BEZIER:
 return wxString::Format( _( "Bezier Curve, %d points" ),
 int( m_bezierPoints.size() ) );
 
 default:
 UNIMPLEMENTED_FOR( SHAPE_T_asString() );
 return wxEmptyString;
 }
}
 
 
BITMAPS LIB_SHAPE::GetMenuImage() const
{
 switch( GetShape() )
 {
 case SHAPE_T::SEGMENT: return BITMAPS::add_line;
 case SHAPE_T::ARC: return BITMAPS::add_arc;
 case SHAPE_T::CIRCLE: return BITMAPS::add_circle;
 case SHAPE_T::RECT: return BITMAPS::add_rectangle;
 case SHAPE_T::POLY: return BITMAPS::add_graphical_segments;
 
 default:
 UNIMPLEMENTED_FOR( SHAPE_T_asString() );
 return BITMAPS::question_mark;
 }
}
 
 
void LIB_SHAPE::AddPoint( const VECTOR2I& aPosition )
{
 if( GetShape() == SHAPE_T::POLY )
 {
 if( m_poly.IsEmpty() )
 m_poly.NewOutline();
 
 m_poly.Outline( 0 ).Append( aPosition, true );
 }
 else
 {
 UNIMPLEMENTED_FOR( SHAPE_T_asString() );
 }
}
 
 
 
 
void LIB_SHAPE::ViewGetLayers( int aLayers[], int& aCount ) const
{
 aCount = 3;
 aLayers[0] = IsPrivate() ? LAYER_PRIVATE_NOTES : LAYER_DEVICE;
 aLayers[1] = IsPrivate() ? LAYER_NOTES_BACKGROUND : LAYER_DEVICE_BACKGROUND;
 aLayers[2] = LAYER_SELECTION_SHADOWS;
}