kicad/eeschema/lib_bezier.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2004-2020 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 <fctsys.h>
#include <gr_basic.h>
#include <macros.h>
#include <sch_draw_panel.h>
#include <plotter.h>
#include <trigo.h>
#include <bezier_curves.h>
#include <base_units.h>
#include <eda_draw_frame.h>
#include <msgpanel.h>
#include <eda_draw_frame.h>
#include <general.h>
#include <lib_bezier.h>
#include <transform.h>
#include <settings/color_settings.h>
LIB_BEZIER::LIB_BEZIER( LIB_PART* aParent ) :
LIB_ITEM( LIB_BEZIER_T, aParent )
{
m_Fill = NO_FILL;
m_Width = 0;
m_isFillable = true;
}
EDA_ITEM* LIB_BEZIER::Clone() const
{
return new LIB_BEZIER( *this );
}
int LIB_BEZIER::compare( const LIB_ITEM& aOther, LIB_ITEM::COMPARE_FLAGS aCompareFlags ) const
{
wxASSERT( aOther.Type() == LIB_BEZIER_T );
int retv = LIB_ITEM::compare( aOther );
if( retv )
return retv;
const LIB_BEZIER* tmp = ( LIB_BEZIER* ) &aOther;
if( m_BezierPoints.size() != tmp->m_BezierPoints.size() )
return m_BezierPoints.size() - tmp->m_BezierPoints.size();
for( size_t i = 0; i < m_BezierPoints.size(); i++ )
{
if( m_BezierPoints[i].x != tmp->m_BezierPoints[i].x )
return m_BezierPoints[i].x - tmp->m_BezierPoints[i].x;
if( m_BezierPoints[i].y != tmp->m_BezierPoints[i].y )
return m_BezierPoints[i].y - tmp->m_BezierPoints[i].y;
}
return 0;
}
void LIB_BEZIER::Offset( const wxPoint& aOffset )
{
size_t i;
for( i = 0; i < m_BezierPoints.size(); i++ )
m_BezierPoints[i] += aOffset;
for( i = 0; i < m_PolyPoints.size(); i++ )
m_PolyPoints[i] += aOffset;
}
void LIB_BEZIER::MoveTo( const wxPoint& aPosition )
{
if ( !m_PolyPoints.size() )
m_PolyPoints.emplace_back(0, 0 );
Offset( aPosition - m_PolyPoints[ 0 ] );
}
const wxPoint LIB_BEZIER::GetOffset() const
{
if ( !m_PolyPoints.size() )
return wxPoint(0, 0);
return m_PolyPoints[0];
}
void LIB_BEZIER::MirrorHorizontal( const wxPoint& aCenter )
{
size_t i, imax = m_PolyPoints.size();
for( i = 0; i < imax; i++ )
{
m_PolyPoints[i].x -= aCenter.x;
m_PolyPoints[i].x *= -1;
m_PolyPoints[i].x += aCenter.x;
}
imax = m_BezierPoints.size();
for( i = 0; i < imax; i++ )
{
m_BezierPoints[i].x -= aCenter.x;
m_BezierPoints[i].x *= -1;
m_BezierPoints[i].x += aCenter.x;
}
}
void LIB_BEZIER::MirrorVertical( const wxPoint& aCenter )
{
size_t i, imax = m_PolyPoints.size();
for( i = 0; i < imax; i++ )
{
m_PolyPoints[i].y -= aCenter.y;
m_PolyPoints[i].y *= -1;
m_PolyPoints[i].y += aCenter.y;
}
imax = m_BezierPoints.size();
for( i = 0; i < imax; i++ )
{
m_BezierPoints[i].y -= aCenter.y;
m_BezierPoints[i].y *= -1;
m_BezierPoints[i].y += aCenter.y;
}
}
void LIB_BEZIER::Rotate( const wxPoint& aCenter, bool aRotateCCW )
{
int rot_angle = aRotateCCW ? -900 : 900;
for( wxPoint& point : m_PolyPoints )
RotatePoint( &point, aCenter, rot_angle );
for( wxPoint& bezierPoint : m_BezierPoints )
RotatePoint( &bezierPoint, aCenter, rot_angle );
}
void LIB_BEZIER::Plot( PLOTTER* aPlotter, const wxPoint& aOffset, bool aFill,
const TRANSFORM& aTransform )
{
wxASSERT( aPlotter != NULL );
static std::vector< wxPoint > cornerList;
cornerList.clear();
for( wxPoint pos : m_PolyPoints )
{
pos = aTransform.TransformCoordinate( pos ) + aOffset;
cornerList.push_back( pos );
}
if( aFill && m_Fill == FILLED_WITH_BG_BODYCOLOR )
{
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aPlotter->SetColor( aPlotter->RenderSettings()->GetLayerColor( LAYER_DEVICE_BACKGROUND ) );
aPlotter->PlotPoly( cornerList, FILLED_WITH_BG_BODYCOLOR, 0 );
}
bool already_filled = m_Fill == FILLED_WITH_BG_BODYCOLOR;
int pen_size = GetPenWidth();
if( !already_filled || pen_size > 0 )
{
pen_size = std::max( pen_size, aPlotter->RenderSettings()->GetMinPenWidth() );
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aPlotter->SetColor( aPlotter->RenderSettings()->GetLayerColor( LAYER_DEVICE ) );
aPlotter->PlotPoly( cornerList, already_filled ? NO_FILL : m_Fill, pen_size );
}
}
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int LIB_BEZIER::GetPenWidth() const
{
// Historically 0 meant "default width" and negative numbers meant "don't stroke".
if( m_Width < 0 && GetFillMode() != NO_FILL )
return 0;
else
return std::max( m_Width, 1 );
}
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void LIB_BEZIER::print( RENDER_SETTINGS* aSettings, const wxPoint& aOffset, void* aData,
const TRANSFORM& aTransform )
{
bool forceNoFill = static_cast<bool>( aData );
int penWidth = GetPenWidth();
if( forceNoFill && m_Fill != NO_FILL && penWidth == 0 )
return;
std::vector<wxPoint> PolyPointsTraslated;
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wxDC* DC = aSettings->GetPrintDC();
COLOR4D color = aSettings->GetLayerColor( LAYER_DEVICE );
BEZIER_POLY converter( m_BezierPoints );
converter.GetPoly( m_PolyPoints );
PolyPointsTraslated.clear();
for( wxPoint& point : m_PolyPoints )
PolyPointsTraslated.push_back( aTransform.TransformCoordinate( point ) + aOffset );
if( forceNoFill || m_Fill == NO_FILL )
{
penWidth = std::max( penWidth, aSettings->GetDefaultPenWidth() );
GRPoly( nullptr, DC, m_PolyPoints.size(), &PolyPointsTraslated[0], false, penWidth,
color, color );
}
else
{
if( m_Fill == FILLED_WITH_BG_BODYCOLOR )
color = aSettings->GetLayerColor( LAYER_DEVICE_BACKGROUND );
GRPoly( nullptr, DC, m_PolyPoints.size(), &PolyPointsTraslated[0], true, penWidth,
color, color );
}
}
bool LIB_BEZIER::HitTest( const wxPoint& aRefPos, int aAccuracy ) const
{
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int mindist = std::max( aAccuracy + GetPenWidth() / 2,
Mils2iu( MINIMUM_SELECTION_DISTANCE ) );
wxPoint start, end;
for( unsigned ii = 1; ii < GetCornerCount(); ii++ )
{
start = DefaultTransform.TransformCoordinate( m_PolyPoints[ii - 1] );
end = DefaultTransform.TransformCoordinate( m_PolyPoints[ii] );
if ( TestSegmentHit( aRefPos, start, end, mindist ) )
return true;
}
return false;
}
bool LIB_BEZIER::HitTest( const EDA_RECT& aRect, bool aContained, int aAccuracy ) const
{
if( m_Flags & ( STRUCT_DELETED | SKIP_STRUCT ) )
return false;
EDA_RECT sel = aRect;
if ( aAccuracy )
sel.Inflate( aAccuracy );
if( aContained )
return sel.Contains( GetBoundingBox() );
// Fast test: if aRect is outside the polygon bounding box, rectangles cannot intersect
if( !sel.Intersects( GetBoundingBox() ) )
return false;
// Account for the width of the line
sel.Inflate( GetWidth() / 2 );
unsigned count = m_BezierPoints.size();
for( unsigned ii = 1; ii < count; ii++ )
{
wxPoint vertex = DefaultTransform.TransformCoordinate( m_BezierPoints[ii-1] );
wxPoint vertexNext = DefaultTransform.TransformCoordinate( m_BezierPoints[ii] );
// Test if the point is within aRect
if( sel.Contains( vertex ) )
return true;
// Test if this edge intersects aRect
if( sel.Intersects( vertex, vertexNext ) )
return true;
}
return false;
}
const EDA_RECT LIB_BEZIER::GetBoundingBox() const
{
EDA_RECT rect;
int xmin, xmax, ymin, ymax;
if( !GetCornerCount() )
return rect;
xmin = xmax = m_PolyPoints[0].x;
ymin = ymax = m_PolyPoints[0].y;
for( unsigned ii = 1; ii < GetCornerCount(); ii++ )
{
xmin = std::min( xmin, m_PolyPoints[ii].x );
xmax = std::max( xmax, m_PolyPoints[ii].x );
ymin = std::min( ymin, m_PolyPoints[ii].y );
ymax = std::max( ymax, m_PolyPoints[ii].y );
}
rect.SetOrigin( xmin, ymin );
rect.SetEnd( xmax, ymax );
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rect.Inflate( ( GetPenWidth() / 2 ) + 1 );
rect.RevertYAxis();
return rect;
}
void LIB_BEZIER::GetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, std::vector<MSG_PANEL_ITEM>& aList )
{
wxString msg;
EDA_RECT bBox = GetBoundingBox();
LIB_ITEM::GetMsgPanelInfo( aFrame, aList );
msg = MessageTextFromValue( aFrame->GetUserUnits(), m_Width, true );
aList.emplace_back( _( "Line Width" ), msg, BLUE );
msg.Printf( wxT( "(%d, %d, %d, %d)" ),
bBox.GetOrigin().x,
bBox.GetOrigin().y,
bBox.GetEnd().x,
bBox.GetEnd().y );
aList.emplace_back( _( "Bounding Box" ), msg, BROWN );
}
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wxPoint LIB_BEZIER::GetPosition() const
{
if( !m_PolyPoints.size() )
return wxPoint(0, 0);
return m_PolyPoints[0];
}