kicad/include/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 <eda_units.h>
#include <convert_to_biu.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 ///< marker for list end
};
// 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, bool eeWinding );
// 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 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; }
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; }
/**
* Return the starting point of the graphic.
*/
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;
}
/**
* Return the ending point of the graphic.
*/
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 );
/**
* Set the end point from the angle center and start.
*/
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void SetArcAngleAndEnd( const EDA_ANGLE& aAngle, bool aCheckNegativeAngle = false );
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EDA_ANGLE GetArcAngle() const;
/**
* Have the start and end points been swapped since they were set?
* @return true if they have
*/
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;
/**
* Calc arc start and end angles such that aStartAngle < aEndAngle. Each may be between
* -360.0 and 360.0.
*/
void CalcArcAngles( EDA_ANGLE& aStartAngle, EDA_ANGLE& aEndAngle ) const;
int GetRadius() const;
/**
* Set the three controlling points for an arc.
*
* NB: these are NOT what's currently stored, so we have to do some calculations behind
* the scenes. However, they are what SHOULD be stored.
*/
void SetArcGeometry( const VECTOR2I& aStart, const VECTOR2I& aMid, const VECTOR2I& aEnd );
/**
* Set the data used for mid point caching. If the controlling points remain constant, then
* we keep the midpoint the same as it was when read in. This minimizes VCS churn
*
* @param aStart Cached start point
* @param aMid Cached mid point
* @param aEnd Cached end point
* @param aCenter Calculated center point using the preceeding three
*/
void SetCachedArcData( const VECTOR2I& aStart, const VECTOR2I& aMid, const VECTOR2I& aEnd, const VECTOR2I& aCenter );
const std::vector<VECTOR2I>& GetBezierPoints() const { return m_bezierPoints; }
/**
* Duplicate the list of corners in a std::vector<VECTOR2I>
*
* It must be used only to convert the SHAPE_POLY_SET internal corner buffer
* to a list of VECTOR2Is, and nothing else, because it duplicates the buffer,
* that is inefficient to know for instance the corner count
*/
void DupPolyPointsList( std::vector<VECTOR2I>& aBuffer ) const;
/**
* @return the number of corners of the polygonal shape
*/
int GetPointCount() const;
// Accessors to the polygonal shape
SHAPE_POLY_SET& GetPolyShape() { return m_poly; }
const SHAPE_POLY_SET& GetPolyShape() const { return m_poly; }
/**
* @return true if the polygonal shape is valid (has more than 2 points)
*/
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 );
/**
* Rebuild the m_bezierPoints vertex list that approximate the Bezier curve by a list of
* segments.
*
* Has meaning only for BEZIER shape.
*
* @param aMinSegLen is the min length of segments approximating the bezier. The shape's last
* segment can be shorter. This parameter avoids having too many very short
* segment in list. Good values are between m_width/2 and m_width.
*/
void RebuildBezierToSegmentsPointsList( int aMinSegLen );
/**
* Make a set of SHAPE objects representing the EDA_SHAPE. Caller owns the objects.
*
* @param aEdgeOnly indicates only edges should be generated (even if 0 width), and no fill
* shapes.
*/
virtual std::vector<SHAPE*> MakeEffectiveShapes( bool aEdgeOnly = false ) const
{
return makeEffectiveShapes( aEdgeOnly );
}
void ShapeGetMsgPanelInfo( EDA_DRAW_FRAME* aFrame, std::vector<MSG_PANEL_ITEM>& aList );
/**
* Return the length of the track using the hypotenuse calculation.
*
* @return the length of the track
*/
double GetLength() const;
/**
* Convert the shape to a closed polygon.
*
* Used in filling zones calculations. Circles and arcs are approximated by segments.
*
* @param aCornerBuffer is a buffer to store the polygon.
* @param aClearanceValue is the clearance around the pad.
* @param aError is the maximum deviation from a true arc.
* @param aErrorLoc whether any approximation error shoule be placed inside or outside
* @param ignoreLineWidth is used for edge cut items where the line width is only
* for visualization
*/
void TransformShapeWithClearanceToPolygon( SHAPE_POLY_SET& aCornerBuffer, int aClearanceValue,
int aError, ERROR_LOC aErrorLoc,
bool ignoreLineWidth ) const;
int Compare( const EDA_SHAPE* aOther ) const;
protected:
void setPosition( const VECTOR2I& aPos );
VECTOR2I getPosition() const;
void move( const VECTOR2I& aMoveVector );
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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
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virtual EDA_ANGLE getParentOrientation() const = 0;
virtual VECTOR2I getParentPosition() const = 0;
const EDA_RECT getBoundingBox() const;
void computeArcBBox( EDA_RECT& aBBox ) const;
bool hitTest( const VECTOR2I& aPosition, int aAccuracy = 0 ) const;
bool hitTest( const EDA_RECT& 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 );
/**
* Finishes editing the shape.
* @param aClosed Should polygon shapes be closed (yes for pcbnew/fpeditor, no for libedit)
*/
void endEdit( bool aClosed = true );
void setEditState( int aState ) { m_editState = aState; }
/**
* Make a set of SHAPE objects representing the EDA_SHAPE. Caller owns the objects.
*
* @param aEdgeOnly indicates only edges should be generated (even if 0 width), and no fill
* shapes.
* @param aLineChainOnly indicates SHAPE_POLY_SET is being abused slightly to represent a
* lineChain rather than a closed polygon
*/
// 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_upsideDownCoords; // Awful hack
};
#endif // EDA_SHAPE_H