478 lines
13 KiB
C++
478 lines
13 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 (C) 2017 Jean-Pierre Charras, jp.charras at wanadoo.fr
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* Copyright (C) 2004-2019 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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/**
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* @file lib_polyline.cpp
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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 <general.h>
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#include <lib_polyline.h>
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#include <transform.h>
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LIB_POLYLINE::LIB_POLYLINE( LIB_PART* aParent ) :
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LIB_ITEM( LIB_POLYLINE_T, aParent )
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{
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m_Fill = NO_FILL;
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m_Width = 0;
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m_isFillable = true;
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m_ModifyIndex = 0;
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}
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EDA_ITEM* LIB_POLYLINE::Clone() const
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{
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return new LIB_POLYLINE( *this );
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}
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int LIB_POLYLINE::compare( const LIB_ITEM& aOther ) const
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{
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wxASSERT( aOther.Type() == LIB_POLYLINE_T );
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const LIB_POLYLINE* tmp = (LIB_POLYLINE*) &aOther;
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if( m_PolyPoints.size() != tmp->m_PolyPoints.size() )
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return m_PolyPoints.size() - tmp->m_PolyPoints.size();
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for( size_t i = 0; i < m_PolyPoints.size(); i++ )
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{
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if( m_PolyPoints[i].x != tmp->m_PolyPoints[i].x )
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return m_PolyPoints[i].x - tmp->m_PolyPoints[i].x;
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if( m_PolyPoints[i].y != tmp->m_PolyPoints[i].y )
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return m_PolyPoints[i].y - tmp->m_PolyPoints[i].y;
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}
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return 0;
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}
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void LIB_POLYLINE::Offset( const wxPoint& aOffset )
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{
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for( size_t i = 0; i < m_PolyPoints.size(); i++ )
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m_PolyPoints[i] += aOffset;
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}
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bool LIB_POLYLINE::Inside( EDA_RECT& aRect ) const
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{
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for( size_t i = 0; i < m_PolyPoints.size(); i++ )
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{
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if( aRect.Contains( m_PolyPoints[i].x, -m_PolyPoints[i].y ) )
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return true;
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}
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return false;
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}
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void LIB_POLYLINE::MoveTo( const wxPoint& aPosition )
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{
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Offset( aPosition - m_PolyPoints[ 0 ] );
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}
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void LIB_POLYLINE::MirrorHorizontal( const wxPoint& aCenter )
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{
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size_t i, imax = m_PolyPoints.size();
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for( i = 0; i < imax; i++ )
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{
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m_PolyPoints[i].x -= aCenter.x;
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m_PolyPoints[i].x *= -1;
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m_PolyPoints[i].x += aCenter.x;
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}
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}
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void LIB_POLYLINE::MirrorVertical( const wxPoint& aCenter )
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{
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size_t i, imax = m_PolyPoints.size();
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for( i = 0; i < imax; i++ )
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{
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m_PolyPoints[i].y -= aCenter.y;
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m_PolyPoints[i].y *= -1;
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m_PolyPoints[i].y += aCenter.y;
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}
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}
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void LIB_POLYLINE::Rotate( const wxPoint& aCenter, bool aRotateCCW )
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{
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int rot_angle = aRotateCCW ? -900 : 900;
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size_t i, imax = m_PolyPoints.size();
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for( i = 0; i < imax; i++ )
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RotatePoint( &m_PolyPoints[i], aCenter, rot_angle );
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}
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void LIB_POLYLINE::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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static std::vector< wxPoint > cornerList;
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cornerList.clear();
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for( unsigned ii = 0; ii < m_PolyPoints.size(); ii++ )
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{
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wxPoint pos = m_PolyPoints[ii];
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pos = aTransform.TransformCoordinate( pos ) + aOffset;
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cornerList.push_back( pos );
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}
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if( aFill && m_Fill == FILLED_WITH_BG_BODYCOLOR )
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{
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aPlotter->SetColor( GetLayerColor( LAYER_DEVICE_BACKGROUND ) );
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aPlotter->PlotPoly( cornerList, 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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auto pen_size = GetPenSize();
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if( !already_filled || pen_size > 0 )
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{
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pen_size = std::max( 0, pen_size );
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aPlotter->SetColor( GetLayerColor( LAYER_DEVICE ) );
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aPlotter->PlotPoly( cornerList, already_filled ? NO_FILL : m_Fill, pen_size );
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}
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}
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void LIB_POLYLINE::AddPoint( const wxPoint& aPosition )
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{
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m_PolyPoints.push_back( aPosition );
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}
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void LIB_POLYLINE::AddCorner( const wxPoint& aPosition )
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{
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int currentMinDistance = INT_MAX;
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int closestLineStart = 0;
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for( int i = 0; i < m_PolyPoints.size() - 1; ++i )
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{
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int distance = (int) DistanceLinePoint( m_PolyPoints[i], m_PolyPoints[i + 1], aPosition );
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if( distance < currentMinDistance )
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{
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currentMinDistance = distance;
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closestLineStart = i;
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}
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}
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m_PolyPoints.insert( m_PolyPoints.begin() + closestLineStart, aPosition );
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}
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void LIB_POLYLINE::RemoveCorner( int aIdx )
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{
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m_PolyPoints.erase( m_PolyPoints.begin() + aIdx );
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}
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int LIB_POLYLINE::GetPenSize() const
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{
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if( m_Width > 0 )
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return m_Width;
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if( m_Width == 0 )
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return GetDefaultLineThickness();
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return -1; // the minimal pen value
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}
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void LIB_POLYLINE::drawGraphic( EDA_DRAW_PANEL* aPanel, wxDC* aDC, const wxPoint& aOffset,
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void* aData, const TRANSFORM& aTransform )
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{
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COLOR4D color = GetLayerColor( LAYER_DEVICE );
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COLOR4D bgColor = GetLayerColor( LAYER_DEVICE_BACKGROUND );
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wxPoint* buffer = new wxPoint[ m_PolyPoints.size() ];
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for( unsigned ii = 0; ii < m_PolyPoints.size(); ii++ )
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buffer[ii] = aTransform.TransformCoordinate( m_PolyPoints[ii] ) + aOffset;
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FILL_T fill = aData ? NO_FILL : m_Fill;
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EDA_RECT* const clipbox = aPanel? aPanel->GetClipBox() : NULL;
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if( fill == FILLED_WITH_BG_BODYCOLOR )
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GRPoly( clipbox, aDC, m_PolyPoints.size(), buffer, 1, GetPenSize(), bgColor, bgColor );
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else if( fill == FILLED_SHAPE )
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GRPoly( clipbox, aDC, m_PolyPoints.size(), buffer, 1, GetPenSize(), color, color );
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else
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GRPoly( clipbox, aDC, m_PolyPoints.size(), buffer, 0, GetPenSize(), color, color );
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delete[] buffer;
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}
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bool LIB_POLYLINE::HitTest( const wxPoint& aPosition, int aAccuracy ) const
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{
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int mindist = std::max( aAccuracy + GetPenSize() / 2, MINIMUM_SELECTION_DISTANCE );
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wxPoint start, end;
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for( unsigned ii = 1; ii < GetCornerCount(); ii++ )
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{
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start = DefaultTransform.TransformCoordinate( m_PolyPoints[ii - 1] );
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end = DefaultTransform.TransformCoordinate( m_PolyPoints[ii] );
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if( TestSegmentHit( aPosition, start, end, mindist ) )
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return true;
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}
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return false;
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}
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bool LIB_POLYLINE::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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EDA_RECT rect = aRect;
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if ( aAccuracy )
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rect.Inflate( aAccuracy );
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if( aContained )
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return rect.Contains( GetBoundingBox() );
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return rect.Intersects( GetBoundingBox() ); // JEY TODO somewhat coarse for filled polylines,
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// egregiously coarse for unfilled...
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}
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const EDA_RECT LIB_POLYLINE::GetBoundingBox() const
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{
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EDA_RECT rect;
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int xmin, xmax, ymin, ymax;
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xmin = xmax = m_PolyPoints[0].x;
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ymin = ymax = m_PolyPoints[0].y;
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for( unsigned ii = 1; ii < GetCornerCount(); ii++ )
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{
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xmin = std::min( xmin, m_PolyPoints[ii].x );
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xmax = std::max( xmax, m_PolyPoints[ii].x );
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ymin = std::min( ymin, m_PolyPoints[ii].y );
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ymax = std::max( ymax, m_PolyPoints[ii].y );
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}
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rect.SetOrigin( xmin, ymin );
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rect.SetEnd( xmax, ymax );
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rect.Inflate( ( GetPenSize()+1 ) / 2 );
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rect.RevertYAxis();
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return rect;
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}
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void LIB_POLYLINE::DeleteSegment( const wxPoint aPosition )
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{
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// First segment is kept, only its end point is changed
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while( GetCornerCount() > 2 )
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{
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m_PolyPoints.pop_back();
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if( m_PolyPoints[ GetCornerCount() - 1 ] != aPosition )
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{
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m_PolyPoints[ GetCornerCount() - 1 ] = aPosition;
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break;
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}
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}
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}
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void LIB_POLYLINE::GetMsgPanelInfo( EDA_UNITS_T aUnits, MSG_PANEL_ITEMS& 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( aUnits, aList );
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msg = MessageTextFromValue( aUnits, m_Width, true );
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aList.push_back( MSG_PANEL_ITEM( _( "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.push_back( MSG_PANEL_ITEM( _( "Bounding Box" ), msg, BROWN ) );
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}
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wxString LIB_POLYLINE::GetSelectMenuText( EDA_UNITS_T aUnits ) const
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{
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return wxString::Format( _( "Polyline at (%s, %s) with %d points" ),
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MessageTextFromValue( aUnits, m_PolyPoints[0].x ),
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MessageTextFromValue( aUnits, m_PolyPoints[0].y ),
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int( m_PolyPoints.size() ) );
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}
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BITMAP_DEF LIB_POLYLINE::GetMenuImage() const
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{
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return add_polygon_xpm;
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}
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void LIB_POLYLINE::BeginEdit( STATUS_FLAGS aEditMode, const wxPoint aPosition )
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{
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LIB_ITEM::BeginEdit( aEditMode, aPosition );
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if( aEditMode == IS_NEW )
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{
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m_PolyPoints.push_back( aPosition ); // Start point of first segment.
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m_PolyPoints.push_back( aPosition ); // End point of first segment.
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}
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else if( aEditMode == IS_RESIZED )
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{
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// Drag one edge point of the polyline
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// Find the nearest edge point to be dragged
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wxPoint startPoint = m_PolyPoints[0];
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// Begin with the first list point as nearest point
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int index = 0;
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m_ModifyIndex = 0;
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m_initialPos = startPoint;
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// First distance is the current minimum distance
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int distanceMin = (aPosition - startPoint).x * (aPosition - startPoint).x
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+ (aPosition - startPoint).y * (aPosition - startPoint).y;
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wxPoint prevPoint = startPoint;
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// Find the right index of the point to be dragged
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for( wxPoint point : m_PolyPoints )
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{
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int distancePoint = (aPosition - point).x * (aPosition - point).x +
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(aPosition - point).y * (aPosition - point).y;
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if( distancePoint < distanceMin )
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{
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// Save point.
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m_initialPos = point;
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m_ModifyIndex = index;
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distanceMin = distancePoint;
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}
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// check middle of an edge
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wxPoint offset = ( aPosition + aPosition - point - prevPoint );
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distancePoint = ( offset.x * offset.x + offset.y * offset.y ) / 4 + 1;
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if( distancePoint < distanceMin )
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{
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// Save point.
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m_initialPos = point;
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m_ModifyIndex = -index; // negative indicates new vertex is to be inserted
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distanceMin = distancePoint;
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}
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prevPoint = point;
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index++;
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}
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}
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else if( aEditMode == IS_MOVED )
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{
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m_initialCursorPos = aPosition;
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m_initialPos = m_PolyPoints[0];
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}
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}
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bool LIB_POLYLINE::ContinueEdit( const wxPoint aPosition )
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{
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if( IsNew() )
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{
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// do not add zero length segments
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if( m_PolyPoints[m_PolyPoints.size() - 2] != m_PolyPoints.back() )
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m_PolyPoints.push_back( aPosition );
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return true;
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}
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return false;
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}
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void LIB_POLYLINE::EndEdit( const wxPoint& aPosition )
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{
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LIB_ITEM::EndEdit( aPosition );
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// do not include last point twice
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if( m_Flags == IS_NEW && 2 < m_PolyPoints.size() )
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{
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if( m_PolyPoints[ m_PolyPoints.size() - 2 ] == m_PolyPoints.back() )
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m_PolyPoints.pop_back();
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}
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if( (m_Flags == IS_RESIZED) && (m_PolyPoints.size() > 2) ) // do not delete last two points... keep it alive
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{
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if( ( m_ModifyIndex > 0 && m_PolyPoints[ m_ModifyIndex ] ==
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m_PolyPoints[ m_ModifyIndex - 1 ] )
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|| ( m_ModifyIndex < (int) m_PolyPoints.size() - 1
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&& m_PolyPoints[ m_ModifyIndex ] == m_PolyPoints[ m_ModifyIndex + 1 ] ) )
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{
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m_PolyPoints.erase( m_PolyPoints.begin() + m_ModifyIndex ); // delete a point on this
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}
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}
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}
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void LIB_POLYLINE::CalcEdit( const wxPoint& aPosition )
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{
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if( IsNew() )
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{
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m_PolyPoints[ GetCornerCount() - 1 ] = aPosition;
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}
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else if( IsResized() )
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{
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if( m_ModifyIndex < 0 ) // negative indicates new vertex is to be inserted
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{
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m_ModifyIndex = -m_ModifyIndex;
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m_PolyPoints.insert( m_PolyPoints.begin() + m_ModifyIndex, aPosition );
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}
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m_PolyPoints[ m_ModifyIndex ] = aPosition;
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}
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else if( IsMoving() )
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{
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MoveTo( m_initialPos + aPosition - m_initialCursorPos );
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}
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}
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