kicad/gerbview/am_primitive.h

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/**
* @file aperture_macro.h
*/
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#ifndef AM_PRIMITIVE_H
#define AM_PRIMITIVE_H
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/*
* This program source code file is part of KiCad, a free EDA CAD application.
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*
* Copyright (C) 1992-2010 Jean-Pierre Charras <jp.charras at wanadoo.fr>
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* Copyright (C) 2010 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
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* Copyright (C) 1992-2021 KiCad Developers, see AUTHORS.txt for contributors.
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*
* 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
*/
#include <vector>
#include <set>
#include <am_param.h>
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#include <eda_rect.h>
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class SHAPE_POLY_SET;
/*
* An aperture macro defines a complex shape and is a list of aperture primitives.
* Each aperture primitive defines a simple shape (circle, rect, regular polygon...)
* Inside a given aperture primitive, a fixed list of parameters defines info
* about the shape: size, thickness, number of vertex ...
*
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* Each parameter can be an immediate value or a deferred value.
* When value is deferred, it is defined when the aperture macro is instanced by
* an ADD macro command
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* Note also a deferred parameter can be defined in aperture macro,
* but outside aperture primitives. Example
* %AMRECTHERM*
* $4=$3/2* parameter $4 is half value of parameter $3
* 21,1,$1-$3,$2-$3,0-$1/2-$4,0-$2/2-$4,0*
* For the aperture primitive, parameters $1 to $3 will be defined in ADD command,
* and $4 is defined inside the macro
*
* Each basic shape can be a positive shape or a negative shape.
* a negative shape is "local" to the whole shape.
* It must be seen like a hole in the shape, and not like a standard negative object.
*/
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/**
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* The set of all "aperture macro primitives" (primitive numbers).
*
* See Table 3 in http://gerbv.sourceforge.net/docs/rs274xrevd_e.pdf aperture macro primitives
* are basic shapes which can be combined to create a complex shape. This complex shape is
* flashed.
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*/
enum AM_PRIMITIVE_ID {
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AMP_UNKNOWN = -1, // A value for uninitialized AM_PRIMITIVE.
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AMP_COMMENT = 0, // A primitive description is not really a primitive, this is a
// comment
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AMP_CIRCLE = 1, // Circle. (diameter and position)
AMP_LINE2 = 2, // Line with rectangle ends. (Width, start and end pos + rotation)
AMP_LINE20 = 20, // Same as AMP_LINE2
AMP_LINE_CENTER = 21, // Rectangle. (height, width and center pos + rotation)
AMP_LINE_LOWER_LEFT = 22, // Rectangle. (height, width and left bottom corner pos + rotation)
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AMP_EOF = 3, // End Of File marker: not really a shape
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AMP_OUTLINE = 4, // Free polyline (n corners + rotation)
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AMP_POLYGON = 5, // Closed regular polygon(diameter, number of vertices (3 to 10),
// rotation)
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AMP_MOIRE = 6, // A cross hair with n concentric circles + rotation
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AMP_THERMAL = 7 // Thermal shape (pos, outer and inner diameter, cross hair
// thickness + rotation)
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};
/**
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* An aperture macro primitive as given in Table 3 of
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* http://gerbv.sourceforge.net/docs/rs274xrevd_e.pdf
*/
class AM_PRIMITIVE
{
public:
AM_PRIMITIVE_ID primitive_id; ///< The primitive type
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AM_PARAMS params; ///< A sequence of parameters used by
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// the primitive
bool m_GerbMetric; // units for this primitive:
// false = Inches, true = metric
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AM_PRIMITIVE( bool aGerbMetric, AM_PRIMITIVE_ID aId = AMP_UNKNOWN )
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{
primitive_id = aId;
m_GerbMetric = aGerbMetric;
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}
~AM_PRIMITIVE() {}
/**
* @return true if the first parameter is not 0 (it can be only 0 or 1).
* Some but not all primitives use the first parameter as an exposure control.
* Others are always ON.
* In a aperture macro shape, a basic primitive with exposure off is a hole in the shape
* it is NOT a negative shape
*/
bool IsAMPrimitiveExposureOn( const GERBER_DRAW_ITEM* aParent ) const;
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/* Draw functions: */
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/**
* Calculate a value that can be used to evaluate the size of text when displaying the
* D-Code of an item.
*
* Due to the complexity of the shape of some primitives one cannot calculate the "size"
* of a shape (only a bounding box) but here, the "dimension" of the shape is the diameter
* of the primitive or for lines the width of the line.
*
* @param aParent is the parent GERBER_DRAW_ITEM which is actually drawn
* @return a dimension, or -1 if no dim to calculate
*/
int GetShapeDim( const GERBER_DRAW_ITEM* aParent );
/**
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* Draw (in fact generate the actual polygonal shape of) the primitive shape of an aperture
* macro instance.
*
* @param aParent is the parent GERBER_DRAW_ITEM which is actually drawn.
* @param aShapeBuffer is a SHAPE_POLY_SET to put the shape converted to a polygon.
* @param aShapePos is the actual shape position.
*/
void DrawBasicShape( const GERBER_DRAW_ITEM* aParent,
SHAPE_POLY_SET& aShapeBuffer,
const VECTOR2I& aShapePos );
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private:
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/**
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* Convert a shape to an equivalent polygon.
*
* Arcs and circles are approximated by segments. Useful when a shape is not a graphic
* primitive (shape with hole, rotated shape ... ) and cannot be easily drawn.
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*
* @note Some schapes conbining circles and solid lines (rectangles), only rectangles are
* converted because circles are very easy to draw (no rotation problem) so convert
* them in polygons and draw them as polygons is not a good idea.
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*/
void ConvertShapeToPolygon( const GERBER_DRAW_ITEM* aParent, std::vector<VECTOR2I>& aBuffer );
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};
typedef std::vector<AM_PRIMITIVE> AM_PRIMITIVES;
/**
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* Support the "aperture macro" defined within standard RS274X.
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*/
struct APERTURE_MACRO
{
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/**
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* Usually, parameters are defined inside the aperture primitive using immediate mode or
* deferred mode.
*
* In deferred mode the value is defined in a DCODE that want to use the aperture macro.
* Some parameters are defined outside the aperture primitive and are local to the aperture
* macro.
*
* @return the value of a deferred parameter defined inside the aperture macro.
* @param aDcode is the D_CODE that uses this aperture macro and define deferred parameters.
* @param aParamId is the param id (defined by $3 or $5 ..) to evaluate.
*/
double GetLocalParam( const D_CODE* aDcode, unsigned aParamId ) const;
/**
* Calculate the primitive shape for flashed items.
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*
* When an item is flashed, this is the shape of the item.
*
* @param aParent is the parent #GERBER_DRAW_ITEM which is actually drawn.
* @return the shape of the item.
*/
SHAPE_POLY_SET* GetApertureMacroShape( const GERBER_DRAW_ITEM* aParent,
const VECTOR2I& aShapePos );
/**
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* Draw the primitive shape for flashed items.
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*
* When an item is flashed, this is the shape of the item.
*
* @param aParent is the parent GERBER_DRAW_ITEM which is actually drawn.
* @param aClipBox is DC clip box (NULL is no clip).
* @param aDC is the device context.
* @param aColor is the color of shape.
* @param aShapePos is the actual shape position.
* @param aFilledShape set to true to draw in filled mode, false to draw in sketch mode.
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*/
void DrawApertureMacroShape( GERBER_DRAW_ITEM* aParent, EDA_RECT* aClipBox, wxDC* aDC,
const COLOR4D& aColor, const VECTOR2I& aShapePos,
bool aFilledShape );
/**
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* Calculate a value that can be used to evaluate the size of text when displaying the
* D-Code of an item.
*
* Due to the complexity of a shape using many primitives one cannot calculate the "size" of
* a shape (only abounding box) but most of aperture macro are using one or few primitives
* and the "dimension" of the shape is the diameter of the primitive (or the max diameter of
* primitives).
*
* @param aParent is the parent #GERBER_DRAW_ITEM which is actually drawn.
* @return a dimension, or -1 if no dim to calculate.
*/
int GetShapeDim( GERBER_DRAW_ITEM* aParent );
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/// Return the bounding box of the shape.
EDA_RECT GetBoundingBox() const
{
return m_boundingBox;
}
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wxString name; ///< The name of the aperture macro
AM_PRIMITIVES primitives; ///< A sequence of AM_PRIMITIVEs
/* A deferred parameter can be defined in aperture macro,
* but outside aperture primitives. Example
* %AMRECTHERM*
* $4=$3/2* parameter $4 is half value of parameter $3
* m_localparamStack handle a list of local deferred parameters
*/
AM_PARAMS m_localparamStack;
SHAPE_POLY_SET m_shape; ///< The shape of the item, calculated by GetApertureMacroShape
EDA_RECT m_boundingBox; ///< The bounding box of the item, calculated by
///< GetApertureMacroShape.
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};
/**
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* Used by std:set<APERTURE_MACRO> instantiation which uses APERTURE_MACRO.name as its key.
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*/
struct APERTURE_MACRO_less_than
{
// a "less than" test on two APERTURE_MACROs (.name wxStrings)
bool operator()( const APERTURE_MACRO& am1, const APERTURE_MACRO& am2 ) const
{
return am1.name.Cmp( am2.name ) < 0; // case specific wxString compare
}
};
/**
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* A sorted collection of APERTURE_MACROS whose key is the name field in the APERTURE_MACRO.
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*/
typedef std::set<APERTURE_MACRO, APERTURE_MACRO_less_than> APERTURE_MACRO_SET;
typedef std::pair<APERTURE_MACRO_SET::iterator, bool> APERTURE_MACRO_SET_PAIR;
#endif // ifndef AM_PRIMITIVE_H