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kicad/common/tool/edit_points.cpp

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/*
* This program source code file is part of KICAD, a free EDA CAD application.
*
* Copyright (C) 2014-2019 CERN
* Copyright (C) 2021 KiCad Developers, see AUTHORS.txt for contributors.
* @author Maciej Suminski <maciej.suminski@cern.ch>
*
* 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 <gal/graphics_abstraction_layer.h>
#include <gal/color4d.h>
#include <painter.h>
#include <math/util.h> // for KiROUND
#include "tool/edit_points.h"
bool EDIT_POINT::WithinPoint( const VECTOR2I& aPoint, unsigned int aSize ) const
{
// Corners of the EDIT_POINT square
VECTOR2I topLeft = GetPosition() - aSize;
VECTOR2I bottomRight = GetPosition() + aSize;
return ( aPoint.x > topLeft.x && aPoint.y > topLeft.y &&
aPoint.x < bottomRight.x && aPoint.y < bottomRight.y );
}
EDIT_POINTS::EDIT_POINTS( EDA_ITEM* aParent )
: EDA_ITEM( NOT_USED ), m_parent( aParent ), m_allowPoints( true )
{
}
EDIT_POINT* EDIT_POINTS::FindPoint( const VECTOR2I& aLocation, KIGFX::VIEW *aView ) // fixme: ugly
{
unsigned size = std::abs( KiROUND( aView->ToWorld( EDIT_POINT::POINT_SIZE ) ) );
if( m_allowPoints )
{
for( auto& point : m_points )
{
if( point.WithinPoint( aLocation, size ) )
return &point;
}
}
for( auto& line : m_lines )
{
if( line.WithinPoint( aLocation, size ) )
return &line;
}
return nullptr;
}
int EDIT_POINTS::GetContourStartIdx( int aPointIdx ) const
{
int lastIdx = 0;
for( int idx : m_contours )
{
if( idx >= aPointIdx )
return lastIdx;
lastIdx = idx + 1;
}
return lastIdx;
}
int EDIT_POINTS::GetContourEndIdx( int aPointIdx ) const
{
for( int idx : m_contours )
{
if( idx >= aPointIdx )
return idx;
}
return m_points.size() - 1;
}
bool EDIT_POINTS::IsContourStart( int aPointIdx ) const
{
for( int idx : m_contours )
{
if( idx + 1 == aPointIdx )
return true;
// the list is sorted, so we cannot expect it any further
if( idx > aPointIdx )
break;
}
return ( aPointIdx == 0 );
}
bool EDIT_POINTS::IsContourEnd( int aPointIdx ) const
{
for( int idx : m_contours )
{
if( idx == aPointIdx )
return true;
// the list is sorted, so we cannot expect it any further
if( idx > aPointIdx )
break;
}
// the end of the list surely is the end of a contour
return ( aPointIdx == (int) m_points.size() - 1 );
}
EDIT_POINT* EDIT_POINTS::Previous( const EDIT_POINT& aPoint, bool aTraverseContours )
{
for( unsigned int i = 0; i < m_points.size(); ++i )
{
if( m_points[i] == aPoint )
{
if( !aTraverseContours && IsContourStart( i ) )
return &m_points[GetContourEndIdx( i )];
if( i == 0 )
return &m_points[m_points.size() - 1];
else
return &m_points[i - 1];
}
}
return nullptr;
}
EDIT_LINE* EDIT_POINTS::Previous( const EDIT_LINE& aLine )
{
for( unsigned int i = 0; i < m_lines.size(); ++i )
{
if( m_lines[i] == aLine )
{
if( i == 0 )
return &m_lines[m_lines.size() - 1];
else
return &m_lines[i - 1];
}
}
return nullptr;
}
EDIT_POINT* EDIT_POINTS::Next( const EDIT_POINT& aPoint, bool aTraverseContours )
{
for( unsigned int i = 0; i < m_points.size(); ++i )
{
if( m_points[i] == aPoint )
{
if( !aTraverseContours && IsContourEnd( i ) )
return &m_points[GetContourStartIdx( i )];
if( i == m_points.size() - 1 )
return &m_points[0];
else
return &m_points[i + 1];
}
}
return nullptr;
}
EDIT_LINE* EDIT_POINTS::Next( const EDIT_LINE& aLine )
{
for( unsigned int i = 0; i < m_lines.size(); ++i )
{
if( m_lines[i] == aLine )
{
if( i == m_lines.size() - 1 )
return &m_lines[0];
else
return &m_lines[i + 1];
}
}
return nullptr;
}
const BOX2I EDIT_POINTS::ViewBBox() const
{
BOX2I box;
bool empty = true;
for( const auto& point : m_points )
{
if( empty )
{
box.SetOrigin( point.GetPosition() );
empty = false;
}
else
{
box.Merge( point.GetPosition() );
}
}
for( const auto& line : m_lines )
{
if( empty )
{
box.SetOrigin( line.GetOrigin().GetPosition() );
box.SetEnd( line.GetEnd().GetPosition() );
empty = false;
}
else
{
box.Merge( line.GetOrigin().GetPosition() );
box.Merge( line.GetEnd().GetPosition() );
}
}
return box;
}
void EDIT_POINTS::ViewDraw( int aLayer, KIGFX::VIEW* aView ) const
{
auto gal = aView->GetGAL();
KIGFX::RENDER_SETTINGS* settings = aView->GetPainter()->GetSettings();
KIGFX::COLOR4D drawColor = settings->GetLayerColor( LAYER_AUX_ITEMS );
// Don't assume LAYER_AUX_ITEMS is always a good choice. Compare with background.
if( aView->GetGAL()->GetClearColor().Distance( drawColor ) < 0.5 )
drawColor.Invert();
// Linear darkening doesn't fit well with human color perception, and there's no guarantee
// that there's enough room for contrast either.
KIGFX::COLOR4D bgColor;
double brightness = drawColor.GetBrightness();
if( brightness > 0.5 )
bgColor = drawColor.Darkened( 0.3 ).WithAlpha( 0.8 );
else if( brightness > 0.2 )
bgColor = drawColor.Darkened( 0.6 ).WithAlpha( 0.8 );
else
bgColor = drawColor.Brightened( 0.3 ).WithAlpha( 0.8 );
KIGFX::COLOR4D highlightColor = settings->GetLayerColor( LAYER_SELECT_OVERLAY );
gal->SetFillColor( drawColor );
gal->SetStrokeColor( bgColor );
gal->SetIsFill( true );
gal->SetIsStroke( true );
gal->PushDepth();
gal->SetLayerDepth( gal->GetMinDepth() );
double size = aView->ToWorld( EDIT_POINT::POINT_SIZE ) / 2.0;
double borderSize = aView->ToWorld( EDIT_POINT::BORDER_SIZE );
double hoverSize = aView->ToWorld( EDIT_POINT::HOVER_SIZE );
auto drawPoint =
[&]( const EDIT_POINT& aPoint, bool aDrawCircle = false )
{
if( aPoint.IsHover() || aPoint.IsActive() )
{
gal->SetStrokeColor( highlightColor );
gal->SetLineWidth( hoverSize );
}
else
{
gal->SetStrokeColor( bgColor );
gal->SetLineWidth( borderSize );
}
gal->SetFillColor( aPoint.IsActive() ? highlightColor : drawColor );
if( aDrawCircle )
gal->DrawCircle( aPoint.GetPosition(), size );
else
gal->DrawRectangle( aPoint.GetPosition() - size, aPoint.GetPosition() + size );
};
for( const EDIT_POINT& point : m_points )
drawPoint( point );
for( const EDIT_LINE& line : m_lines )
drawPoint( line, true );
gal->PopDepth();
}
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