sch_line.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2009 Jean-Pierre Charras, [email protected]
 * Copyright The 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
 */
 
#ifndef _SCH_LINE_H_
#define _SCH_LINE_H_
 
#include <sch_item.h>
#include <wx/pen.h>     // for wxPenStyle
#include <list>         // for std::list
#include <geometry/seg.h>
#include <math/vector3.h>
 
class NETLIST_OBJECT_LIST;
 

class SCH_LINE : public SCH_ITEM
{
public:
    static const enum wxPenStyle PenStyle[];
 
    SCH_LINE( const VECTOR2I& pos = VECTOR2I( 0, 0 ), int layer = LAYER_NOTES );
 
    SCH_LINE( const VECTOR2D& pos, int layer = LAYER_NOTES ) :
            SCH_LINE( VECTOR2I( pos.x, pos.y ), layer )
    {}
 
    SCH_LINE( const SCH_LINE& aLine );
 
    ~SCH_LINE() { }
 
    void Serialize( google::protobuf::Any &aContainer ) const override;
    bool Deserialize( const google::protobuf::Any &aContainer ) override;
 
    static inline bool ClassOf( const EDA_ITEM* aItem )
    {
        return aItem && SCH_LINE_T == aItem->Type();
    }
 
    wxString GetClass() const override
    {
        return wxT( "SCH_LINE" );
    }
 
    wxString GetFriendlyName() const override;
 
    bool IsType( const std::vector<KICAD_T>& aScanTypes ) const override
    {
        if( SCH_ITEM::IsType( aScanTypes ) )
            return true;
 
        for( KICAD_T scanType : aScanTypes  )
        {
            if( scanType == SCH_ITEM_LOCATE_WIRE_T && m_layer == LAYER_WIRE )
                return true;
 
            if ( scanType == SCH_ITEM_LOCATE_BUS_T && m_layer == LAYER_BUS )
                return true;
 
            if ( scanType == SCH_ITEM_LOCATE_GRAPHIC_LINE_T && m_layer == LAYER_NOTES )
                return true;
        }
 
        return false;
    }
 
    bool IsEndPoint( const VECTOR2I& aPoint ) const override
    {
        return aPoint == m_start || aPoint == m_end;
    }
 
    int GetAngleFrom( const VECTOR2I& aPoint ) const;
    int GetReverseAngleFrom( const VECTOR2I& aPoint ) const;

    inline EDA_ANGLE Angle() const
    {
        return ( EDA_ANGLE( (VECTOR2I) m_end - (VECTOR2I) m_start ) );
    }

    inline void StoreAngle()
    {
        if( !IsNull() )
            m_storedAngle = Angle();
    }
 
    inline void StoreAngle( const EDA_ANGLE& aAngle ) { m_storedAngle = aAngle; }

    inline EDA_ANGLE GetStoredAngle() const { return m_storedAngle; }

    inline bool IsOrthogonal() const { return Angle().IsCardinal(); }
 
    bool IsNull() const { return m_start == m_end; }
 
    VECTOR2I GetStartPoint() const { return m_start; }
    void     SetStartPoint( const VECTOR2I& aPosition ) { m_start = aPosition; }
 
    VECTOR2I GetMidPoint() const { return ( m_start + m_end ) / 2; }
 
    VECTOR2I GetEndPoint() const { return m_end; }
    void     SetEndPoint( const VECTOR2I& aPosition ) { m_end = aPosition; }

    SEG GetSeg() const
    {
        return SEG{ m_start, m_end };
    }
 
    void SetLastResolvedState( const SCH_ITEM* aItem ) override
    {
        const SCH_LINE* aLine = dynamic_cast<const SCH_LINE*>( aItem );
 
        if( aLine )
        {
            m_stroke = aLine->GetStroke();
            m_lastResolvedLineStyle = aLine->m_lastResolvedLineStyle;
            m_lastResolvedWidth = aLine->m_lastResolvedWidth;
            m_lastResolvedColor = aLine->m_lastResolvedColor;
        }
    }
 
    void       SetLineStyle( const LINE_STYLE aStyle );
    LINE_STYLE GetLineStyle() const;

    LINE_STYLE GetEffectiveLineStyle() const;
 
    // Special Getter/Setters for properties panel.  Required because it uses #WIRE_STYLE instead
    // of #LINE_STYLE.  (The two enums are identical, but we expose "default" in the #WIRE_STYLE
    // property while we don't with the LINE_STYLE property.)
    void       SetWireStyle( const WIRE_STYLE aStyle ) { SetLineStyle( (LINE_STYLE) aStyle ); }
    WIRE_STYLE GetWireStyle() const { return (WIRE_STYLE) GetLineStyle(); }
 
 
    void SetLineColor( const COLOR4D& aColor );
 
    void SetLineColor( const double r, const double g, const double b, const double a );

    COLOR4D GetLineColor() const;
 
    void SetLineWidth( const int aSize );
    int GetLineWidth() const { return m_stroke.GetWidth(); }
 
    virtual bool HasLineStroke() const override { return true; }
    virtual STROKE_PARAMS GetStroke() const override { return m_stroke; }
    virtual void SetStroke( const STROKE_PARAMS& aStroke ) override { m_stroke = aStroke; }
 
    bool IsStrokeEquivalent( const SCH_LINE* aLine )
    {
        if( m_stroke.GetWidth() != aLine->GetStroke().GetWidth() )
            return false;
 
        if( m_stroke.GetColor() != aLine->GetStroke().GetColor() )
            return false;
 
        LINE_STYLE style_a = m_stroke.GetLineStyle();
        LINE_STYLE style_b = aLine->GetStroke().GetLineStyle();
 
        return style_a == style_b
               || ( style_a == LINE_STYLE::DEFAULT && style_b == LINE_STYLE::SOLID )
               || ( style_a == LINE_STYLE::SOLID   && style_b == LINE_STYLE::DEFAULT );
    }
 
    std::vector<int> ViewGetLayers() const override;
 
    double ViewGetLOD( int aLayer, const KIGFX::VIEW* aView ) const override;
 
    const BOX2I GetBoundingBox() const override;

    double GetLength() const;
 
    int GetPenWidth() const override;
 
    void Move( const VECTOR2I& aMoveVector ) override;
    void MoveStart( const VECTOR2I& aMoveVector );
    void MoveEnd( const VECTOR2I& aMoveVector );
 
    void MirrorVertically( int aCenter ) override;
    void MirrorHorizontally( int aCenter ) override;
    void Rotate( const VECTOR2I& aCenter, bool aRotateCCW ) override;

    SCH_LINE* MergeOverlap( SCH_SCREEN* aScreen, SCH_LINE* aLine, bool aCheckJunctions );

    SCH_LINE* BreakAt( SCH_COMMIT* aCommit, const VECTOR2I& aPoint );

    SCH_LINE* NonGroupAware_BreakAt( const VECTOR2I& aPoint );
 
    bool IsParallel( const SCH_LINE* aLine ) const;

    bool ShouldHopOver( const SCH_LINE* aLine ) const;

    std::vector<VECTOR3I> BuildWireWithHopShape( const SCH_SCREEN* aScreen, double aArcRadius ) const;
 
    void GetEndPoints( std::vector<DANGLING_END_ITEM>& aItemList ) override;
 
    bool UpdateDanglingState( std::vector<DANGLING_END_ITEM>& aItemListByType,
                              std::vector<DANGLING_END_ITEM>& aItemListByPos,
                              const SCH_SHEET_PATH*           aPath = nullptr ) override;
 
    bool IsStartDangling() const { return m_startIsDangling; }
    bool IsEndDangling() const { return m_endIsDangling; }
    bool IsDangling() const override { return m_startIsDangling || m_endIsDangling; }
 
    bool IsConnectable() const override;
 
    bool HasConnectivityChanges( const SCH_ITEM* aItem,
                                 const SCH_SHEET_PATH* aInstance = nullptr ) const override;
 
    std::vector<VECTOR2I> GetConnectionPoints() const override;
 
    bool ConnectionPropagatesTo( const EDA_ITEM* aItem ) const override;
 
    void GetSelectedPoints( std::vector<VECTOR2I>& aPoints ) const;
 
    bool CanConnect( const SCH_ITEM* aItem ) const override;
 
    wxString GetItemDescription( UNITS_PROVIDER* aUnitsProvider, bool aFull ) const override;
 
    BITMAPS GetMenuImage() const override;
 
    bool operator <( const SCH_ITEM& aItem ) const override;
 
    VECTOR2I GetPosition() const override { return m_start; }
    void     SetPosition( const VECTOR2I& aPosition ) override;
    VECTOR2I GetSortPosition() const override { return GetMidPoint(); }
 
    bool IsPointClickableAnchor( const VECTOR2I& aPos ) const override
    {
        return ( GetStartPoint() == aPos && IsStartDangling() )
               || ( GetEndPoint() == aPos && IsEndDangling() );
    }
 
    bool HitTest( const VECTOR2I& aPosition, int aAccuracy = 0 ) const override;
    bool HitTest( const BOX2I& aRect, bool aContained, int aAccuracy = 0 ) const override;
    bool HitTest( const SHAPE_LINE_CHAIN& aPoly, bool aContained ) const override;
 
    void Plot( PLOTTER* aPlotter, bool aBackground, const SCH_PLOT_OPTS& aPlotOpts,
               int aUnit, int aBodyStyle, const VECTOR2I& aOffset, bool aDimmed ) override;
 
    EDA_ITEM* Clone() const override;
 
    void GetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, std::vector<MSG_PANEL_ITEM>& aList ) override;
 
    const wxString& GetOperatingPoint() const { return m_operatingPoint; }
    void SetOperatingPoint( const wxString& aText ) { m_operatingPoint = aText; }
 
#if defined(DEBUG)
    void Show( int nestLevel, std::ostream& os ) const override;
#endif

    bool IsGraphicLine() const;

    bool IsWire() const;

    bool IsBus() const;
 
    double Similarity( const SCH_ITEM& aOther ) const override;
 
    bool operator==( const SCH_ITEM& aOther ) const override;
 
protected:
    void swapData( SCH_ITEM* aItem ) override;
 
private:
    bool doIsConnected( const VECTOR2I& aPosition ) const override;
 
private:
    bool               m_startIsDangling;  
    bool               m_endIsDangling;    
    VECTOR2I           m_start;            
    VECTOR2I           m_end;              
    EDA_ANGLE          m_storedAngle;      
    STROKE_PARAMS      m_stroke;           
 
    // If real-time connectivity gets disabled (due to being too slow on a particular
    // design), we can no longer rely on getting the NetClass to find netclass-specific
    // linestyles, linewidths and colors.
    mutable LINE_STYLE m_lastResolvedLineStyle;
    mutable int        m_lastResolvedWidth;
    mutable COLOR4D    m_lastResolvedColor;
 
    wxString           m_operatingPoint;
};
 
 
#ifndef SWIG
DECLARE_ENUM_TO_WXANY( WIRE_STYLE );
#endif
 
 
#endif    // _SCH_LINE_H_