kicad/pcbnew/class_drawsegment.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) 1992-2018 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
*/
/**
* @file class_drawsegment.h
* @brief Class to handle a graphic segment.
*/
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#ifndef CLASS_DRAWSEGMENT_H_
#define CLASS_DRAWSEGMENT_H_
#include <class_board_item.h>
#include <math_for_graphics.h>
#include <trigo.h>
#include <common.h>
#include <geometry/shape_poly_set.h>
class LINE_READER;
class EDA_DRAW_FRAME;
class MODULE;
class MSG_PANEL_ITEM;
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class DRAWSEGMENT : public BOARD_ITEM
{
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protected:
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int m_Width; ///< thickness of lines ...
wxPoint m_Start; ///< Line start point or Circle and Arc center
wxPoint m_End; ///< Line end point or circle and arc start point
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STROKE_T m_Shape; ///< Shape: line, Circle, Arc
int m_Type; ///< Used in complex associations ( Dimensions.. )
double m_Angle; ///< Used only for Arcs: Arc angle in 1/10 deg
wxPoint m_BezierC1; ///< Bezier Control Point 1
wxPoint m_BezierC2; ///< Bezier Control Point 2
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std::vector<wxPoint> m_BezierPoints;
SHAPE_POLY_SET m_Poly; ///< Stores the S_POLYGON shape
// Computes the bounding box for an arc
void computeArcBBox( EDA_RECT& aBBox ) const;
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public:
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DRAWSEGMENT( BOARD_ITEM* aParent = NULL, KICAD_T idtype = PCB_LINE_T );
// Do not create a copy constructor & operator=.
// The ones generated by the compiler are adequate.
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~DRAWSEGMENT();
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static inline bool ClassOf( const EDA_ITEM* aItem )
{
return aItem && PCB_LINE_T == aItem->Type();
}
/** Polygonal shape is not always filled.
* For now it is filled on all layers but Edge_Cut layer
*/
bool IsPolygonFilled() const { return m_Layer != Edge_Cuts; }
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void SetWidth( int aWidth ) { m_Width = aWidth; }
int GetWidth() const { return m_Width; }
/**
* Function SetAngle
* sets the angle for arcs, and normalizes it within the range 0 - 360 degrees.
* @param aAngle is tenths of degrees, but will soon be degrees.
*/
void SetAngle( double aAngle ); // encapsulates the transition to degrees
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double GetAngle() const { return m_Angle; }
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void SetType( int aType ) { m_Type = aType; }
int GetType() const { return m_Type; }
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void SetShape( STROKE_T aShape ) { m_Shape = aShape; }
STROKE_T GetShape() const { return m_Shape; }
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void SetBezControl1( const wxPoint& aPoint ) { m_BezierC1 = aPoint; }
const wxPoint& GetBezControl1() const { return m_BezierC1; }
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void SetBezControl2( const wxPoint& aPoint ) { m_BezierC2 = aPoint; }
const wxPoint& GetBezControl2() const { return m_BezierC2; }
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void SetPosition( const wxPoint& aPos ) override;
const wxPoint GetPosition() const override;
/**
* Function GetStart
* returns the starting point of the graphic
*/
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const wxPoint& GetStart() const { return m_Start; }
void SetStart( const wxPoint& aStart ) { m_Start = aStart; }
void SetStartY( int y ) { m_Start.y = y; }
void SetStartX( int x ) { m_Start.x = x; }
/**
* Function GetEnd
* returns the ending point of the graphic
*/
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const wxPoint& GetEnd() const { return m_End; }
void SetEnd( const wxPoint& aEnd ) { m_End = aEnd; }
void SetEndY( int y ) { m_End.y = y; }
void SetEndX( int x ) { m_End.x = x; }
// Some attributes are read only, since they are "calculated" from
// m_Start, m_End, and m_Angle.
// No Set...() function for these attributes.
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const wxPoint GetCenter() const override;
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const wxPoint& GetArcStart() const { return m_End; }
const wxPoint GetArcEnd() const;
const wxPoint GetArcMid() const;
/**
* function GetArcAngleStart()
* @return the angle of the starting point of this arc, between 0 and 3600 in 0.1 deg
*/
double GetArcAngleStart() const;
/**
* Function GetRadius
* returns the radius of this item
* Has meaning only for arc and circle
*/
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int GetRadius() const
{
double radius = GetLineLength( m_Start, m_End );
// Dick Hollenbeck's KiROUND R&D // This provides better project control over rounding to int from double // than wxRound() did. This scheme provides better logging in Debug builds // and it provides for compile time calculation of constants. #include <stdio.h> #include <assert.h> #include <limits.h> //-----<KiROUND KIT>------------------------------------------------------------ /** * KiROUND * rounds a floating point number to an int using * "round halfway cases away from zero". * In Debug build an assert fires if will not fit into an int. */ #if defined( DEBUG ) // DEBUG: a macro to capture line and file, then calls this inline static inline int KiRound( double v, int line, const char* filename ) { v = v < 0 ? v - 0.5 : v + 0.5; if( v > INT_MAX + 0.5 ) { printf( "%s: in file %s on line %d, val: %.16g too ' > 0 ' for int\n", __FUNCTION__, filename, line, v ); } else if( v < INT_MIN - 0.5 ) { printf( "%s: in file %s on line %d, val: %.16g too ' < 0 ' for int\n", __FUNCTION__, filename, line, v ); } return int( v ); } #define KiROUND( v ) KiRound( v, __LINE__, __FILE__ ) #else // RELEASE: a macro so compile can pre-compute constants. #define KiROUND( v ) int( (v) < 0 ? (v) - 0.5 : (v) + 0.5 ) #endif //-----</KiROUND KIT>----------------------------------------------------------- // Only a macro is compile time calculated, an inline function causes a static constructor // in a situation like this. // Therefore the Release build is best done with a MACRO not an inline function. int Computed = KiROUND( 14.3 * 8 ); int main( int argc, char** argv ) { for( double d = double(INT_MAX)-1; d < double(INT_MAX)+8; d += 2.0 ) { int i = KiROUND( d ); printf( "t: %d %.16g\n", i, d ); } return 0; }
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return KiROUND( radius );
}
/**
* Initialize the start arc point. can be used for circles
* to initialize one point of the cicumference
*/
void SetArcStart( const wxPoint& aArcStartPoint )
{ m_End = aArcStartPoint; }
/** For arcs and circles:
*/
void SetCenter( const wxPoint& aCenterPoint ) { m_Start = aCenterPoint; }
/**
* Function GetParentModule
* returns a pointer to the parent module, or NULL if DRAWSEGMENT does not
* belong to a module.
* @return MODULE* - pointer to the parent module or NULL.
*/
MODULE* GetParentModule() const;
// Accessors:
const std::vector<wxPoint>& GetBezierPoints() const { return m_BezierPoints; }
/** Build and return the list of corners in a std::vector<wxPoint>
* It must be used only to convert the SHAPE_POLY_SET internal corner buffer
* to a list of wxPoints, and nothing else, because it duplicates the buffer,
* that is inefficient to know for instance the corner count
*/
const std::vector<wxPoint> BuildPolyPointsList() 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; }
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void SetBezierPoints( const std::vector<wxPoint>& aPoints )
{
m_BezierPoints = aPoints;
}
/** Rebuild the m_BezierPoints vertex list that approximate the Bezier curve
* by a list of segments
* Has meaning only for S_CURVE DRAW_SEGMENT shape
* @param aMinSegLen is the min length of segments approximating the shape.
* the last segment can be shorter
* This param avoid having too many very short segment in list.
* a good value is m_Width/2 to m_Width
*/
void RebuildBezierToSegmentsPointsList( int aMinSegLen );
void SetPolyPoints( const std::vector<wxPoint>& aPoints );
void Draw( EDA_DRAW_PANEL* panel, wxDC* DC, GR_DRAWMODE aDrawMode,
const wxPoint& aOffset = ZeroOffset ) override;
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void GetMsgPanelInfo( EDA_UNITS_T aUnits, std::vector<MSG_PANEL_ITEM>& aList ) override;
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const EDA_RECT GetBoundingBox() const override;
bool HitTest( const wxPoint& aPosition, int aAccuracy = 0 ) const override;
bool HitTest( const EDA_RECT& aRect, bool aContained, int aAccuracy = 0 ) const override;
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wxString GetClass() const override
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{
return wxT( "DRAWSEGMENT" );
}
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/**
* Function GetLength
* returns the length of the track using the hypotenuse calculation.
* @return double - the length of the track
*/
double GetLength() const
{
return GetLineLength( GetStart(), GetEnd() );
}
virtual void Move( const wxPoint& aMoveVector ) override;
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virtual void Rotate( const wxPoint& aRotCentre, double aAngle ) override;
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virtual void Flip( const wxPoint& aCentre ) override;
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/**
* Function TransformShapeWithClearanceToPolygon
* Convert the draw segment to a closed polygon
* Used in filling zones calculations
* Circles and arcs are approximated by segments
* @param aCornerBuffer = a buffer to store the polygon
* @param aClearanceValue = the clearance around the pad
* @param aCircleToSegmentsCount = the number of segments to approximate a circle
* @param aCorrectionFactor = the correction to apply to circles radius to keep
* clearance when the circle is approximated by segment bigger or equal
* to the real clearance value (usually near from 1.0)
* @param ignoreLineWidth = used for edge cut items where the line width is only
* for visualization
*/
void TransformShapeWithClearanceToPolygon( SHAPE_POLY_SET& aCornerBuffer,
int aClearanceValue,
int aCircleToSegmentsCount,
double aCorrectionFactor,
bool ignoreLineWidth = false ) const override;
virtual wxString GetSelectMenuText( EDA_UNITS_T aUnits ) const override;
virtual BITMAP_DEF GetMenuImage() const override;
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virtual EDA_ITEM* Clone() const override;
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virtual const BOX2I ViewBBox() const override;
virtual void SwapData( BOARD_ITEM* aImage ) override;
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#if defined(DEBUG)
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void Show( int nestLevel, std::ostream& os ) const override { ShowDummy( os ); }
#endif
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};
#endif // CLASS_DRAWSEGMENT_H_