eda_shape.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2018 Jean-Pierre Charras jp.charras at wanadoo.fr
 * Copyright (C) 1992-2022 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
 */
 
#ifndef EDA_SHAPE_H
#define EDA_SHAPE_H
 
#include <trigo.h>
#include <geometry/shape_poly_set.h>
#include <geometry/geometry_utils.h>
#include <stroke_params.h>
 
class LINE_READER;
class EDA_DRAW_FRAME;
class FOOTPRINT;
class MSG_PANEL_ITEM;
 
using KIGFX::COLOR4D;
 
enum class SHAPE_T : int
{
 SEGMENT = 0,
 RECT,
 ARC,
 CIRCLE,
 POLY,
 BEZIER,
 LAST 
};
 
 
// WARNING: Do not change these values without updating dialogs that depend on their position values
enum class FILL_T : int
{
 NO_FILL = 1,
 FILLED_SHAPE, // Fill with object color
 FILLED_WITH_BG_BODYCOLOR, // Fill with background body color
 FILLED_WITH_COLOR // Fill with a separate color
};
 
 
// Holding struct to keep originating midpoint
struct ARC_MID
{
 VECTOR2I mid;
 VECTOR2I start;
 VECTOR2I end;
 VECTOR2I center;
};
 
class EDA_SHAPE
{
public:
 EDA_SHAPE( SHAPE_T aType, int aLineWidth, FILL_T aFill );
 
 // Do not create a copy constructor & operator=.
 // The ones generated by the compiler are adequate.
 
 virtual ~EDA_SHAPE();
 
 void SwapShape( EDA_SHAPE* aImage );
 
 wxString ShowShape() const;
 
 wxString SHAPE_T_asString() const;
 
 bool IsAnnotationProxy() const { return m_annotationProxy; }
 void SetIsAnnotationProxy( bool aIsProxy = true ) { m_annotationProxy = aIsProxy; }
 
 bool IsFilled() const
 {
 return GetFillMode() != FILL_T::NO_FILL;
 }
 
 void SetFilled( bool aFlag )
 {
 m_fill = aFlag ? FILL_T::FILLED_SHAPE : FILL_T::NO_FILL;
 }
 
 void SetFillMode( FILL_T aFill ) { m_fill = aFill; }
 FILL_T GetFillMode() const { return m_fill; }
 
 bool IsClosed() const;
 
 COLOR4D GetFillColor() const { return m_fillColor; }
 void SetFillColor( const COLOR4D& aColor ) { m_fillColor = aColor; }
 
 void SetWidth( int aWidth ) { m_stroke.SetWidth( aWidth ); }
 int GetWidth() const { return m_stroke.GetWidth(); }
 virtual int GetEffectiveWidth() const { return GetWidth(); }
 
 void SetShape( SHAPE_T aShape ) { m_shape = aShape; }
 SHAPE_T GetShape() const { return m_shape; }
 
 wxString GetFriendlyName() const;
 
 const VECTOR2I& GetStart() const { return m_start; }
 int GetStartY() const { return m_start.y; }
 int GetStartX() const { return m_start.x; }
 
 void SetStart( const VECTOR2I& aStart )
 {
 m_start = aStart;
 m_endsSwapped = false;
 }
 
 void SetStartY( int y )
 {
 m_start.y = y;
 m_endsSwapped = false;
 }
 
 void SetStartX( int x )
 {
 m_start.x = x;
 m_endsSwapped = false;
 }
 
 const VECTOR2I& GetEnd() const { return m_end; }
 int GetEndY() const { return m_end.y; }
 int GetEndX() const { return m_end.x; }
 
 void SetEnd( const VECTOR2I& aEnd )
 {
 m_end = aEnd;
 m_endsSwapped = false;
 }
 
 void SetEndY( int y )
 {
 m_end.y = y;
 m_endsSwapped = false;
 }
 
 void SetEndX( int x )
 {
 m_end.x = x;
 m_endsSwapped = false;
 }
 
 virtual VECTOR2I GetTopLeft() const { return GetStart(); }
 virtual VECTOR2I GetBotRight() const { return GetEnd(); }
 
 virtual void SetTop( int val ) { SetStartY( val ); }
 virtual void SetLeft( int val ) { SetStartX( val ); }
 virtual void SetRight( int val ) { SetEndX( val ); }
 virtual void SetBottom( int val ) { SetEndY( val ); }
 
 void SetBezierC1( const VECTOR2I& aPt ) { m_bezierC1 = aPt; }
 const VECTOR2I& GetBezierC1() const { return m_bezierC1; }
 
 void SetBezierC2( const VECTOR2I& aPt ) { m_bezierC2 = aPt; }
 const VECTOR2I& GetBezierC2() const { return m_bezierC2; }
 
 VECTOR2I getCenter() const;
 void SetCenter( const VECTOR2I& aCenter );
 
 void SetArcAngleAndEnd( const EDA_ANGLE& aAngle, bool aCheckNegativeAngle = false );
 
 EDA_ANGLE GetArcAngle() const;
 
 bool EndsSwapped() const { return m_endsSwapped; }
 
 // Some attributes are read only, since they are derived from m_Start, m_End, and m_Angle.
 // No Set...() function for these attributes.
 
 VECTOR2I GetArcMid() const;
 std::vector<VECTOR2I> GetRectCorners() const;
 
 void CalcArcAngles( EDA_ANGLE& aStartAngle, EDA_ANGLE& aEndAngle ) const;
 
 int GetRadius() const;
 
 void SetArcGeometry( const VECTOR2I& aStart, const VECTOR2I& aMid, const VECTOR2I& aEnd );
 
 void SetCachedArcData( const VECTOR2I& aStart, const VECTOR2I& aMid, const VECTOR2I& aEnd, const VECTOR2I& aCenter );
 
 const std::vector<VECTOR2I>& GetBezierPoints() const { return m_bezierPoints; }
 
 void DupPolyPointsList( std::vector<VECTOR2I>& aBuffer ) const;
 
 int GetPointCount() const;
 
 // Accessors to the polygonal shape
 SHAPE_POLY_SET& GetPolyShape() { return m_poly; }
 const SHAPE_POLY_SET& GetPolyShape() const { return m_poly; }
 
 bool IsPolyShapeValid() const;
 
 void SetPolyShape( const SHAPE_POLY_SET& aShape )
 {
 m_poly = aShape;
 
 for( int ii = 0; ii < m_poly.OutlineCount(); ++ii )
 {
 if( m_poly.HoleCount( ii ) )
 {
 m_poly.Fracture( SHAPE_POLY_SET::PM_FAST );
 break;
 }
 }
 }
 
 void SetPolyPoints( const std::vector<VECTOR2I>& aPoints );
 
 void RebuildBezierToSegmentsPointsList( int aMinSegLen );
 
 virtual std::vector<SHAPE*> MakeEffectiveShapes( bool aEdgeOnly = false ) const
 {
 return makeEffectiveShapes( aEdgeOnly );
 }
 
 void ShapeGetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, std::vector<MSG_PANEL_ITEM>& aList );
 
 double GetLength() const;
 
 void TransformShapeToPolygon( SHAPE_POLY_SET& aBuffer, int aClearance, int aError,
 ERROR_LOC aErrorLoc, bool ignoreLineWidth = false ) const;
 
 int Compare( const EDA_SHAPE* aOther ) const;
 
protected:
 void setPosition( const VECTOR2I& aPos );
 VECTOR2I getPosition() const;
 
 void move( const VECTOR2I& aMoveVector );
 void rotate( const VECTOR2I& aRotCentre, const EDA_ANGLE& aAngle );
 void flip( const VECTOR2I& aCentre, bool aFlipLeftRight );
 void scale( double aScale );
 
 // To be implemented by concrete classes
 virtual EDA_ANGLE getParentOrientation() const = 0;
 virtual VECTOR2I getParentPosition() const = 0;
 
 const BOX2I getBoundingBox() const;
 
 void computeArcBBox( BOX2I& aBBox ) const;
 
 bool hitTest( const VECTOR2I& aPosition, int aAccuracy = 0 ) const;
 bool hitTest( const BOX2I& aRect, bool aContained, int aAccuracy = 0 ) const;
 
 const std::vector<VECTOR2I> buildBezierToSegmentsPointsList( int aMinSegLen ) const;
 
 void beginEdit( const VECTOR2I& aStartPoint );
 bool continueEdit( const VECTOR2I& aPosition );
 void calcEdit( const VECTOR2I& aPosition );
 
 void endEdit( bool aClosed = true );
 void setEditState( int aState ) { m_editState = aState; }
 
 // fixme: move to shape_compound
 std::vector<SHAPE*> makeEffectiveShapes( bool aEdgeOnly, bool aLineChainOnly = false ) const;
 
protected:
 bool m_endsSwapped; // true if start/end were swapped e.g. SetArcAngleAndEnd
 SHAPE_T m_shape; // Shape: line, Circle, Arc
 STROKE_PARAMS m_stroke; // Line style, width, etc.
 FILL_T m_fill;
 COLOR4D m_fillColor;
 
 VECTOR2I m_start; // Line start point or Circle center
 VECTOR2I m_end; // Line end point or Circle 3 o'clock point
 
 VECTOR2I m_arcCenter; // Used only for Arcs: arc end point
 ARC_MID m_arcMidData; // Used to store originating data
 
 VECTOR2I m_bezierC1; // Bezier Control Point 1
 VECTOR2I m_bezierC2; // Bezier Control Point 2
 
 std::vector<VECTOR2I> m_bezierPoints;
 SHAPE_POLY_SET m_poly; // Stores the S_POLYGON shape
 
 int m_editState;
 bool m_annotationProxy; // A shape storing the position of an annotation
};
 
#endif // EDA_SHAPE_H