kicad/pcbnew/class_track.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2004 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
* Copyright (C) 1992-2011 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_track.h
* @brief Definitions for tracks, vias and zones.
*/
#ifndef CLASS_TRACK_H
#define CLASS_TRACK_H
#include <class_board_item.h>
#include <class_board_connected_item.h>
#include <PolyLine.h>
class TRACK;
class D_PAD;
// Via attributes (m_Shape parameter)
#define VIA_THROUGH 3 /* Always a through hole via */
#define VIA_BLIND_BURIED 2 /* this via can be on internal layers */
#define VIA_MICROVIA 1 /* this via which connect from an external layer
* to the near neighbor internal layer */
#define VIA_NOT_DEFINED 0 /* not yet used */
#define UNDEFINED_DRILL_DIAMETER -1 //< Undefined via drill diameter.
/**
* Function GetTrace
* is a helper function to locate a trace segment having an end point at \a aPosition
* on \a aLayerMask starting at \a aStartTrace and end at \a aEndTrace.
* <p>
* The segments of track that are flagged as deleted or busy are ignored. Layer
* visibility is also ignored.
* </p>
* @param aStartTrace A pointer to the TRACK object to begin searching.
* @param aEndTrace A pointer to the TRACK object to stop the search. A NULL value
* searches to the end of the list.
* @param aPosition A wxPoint object containing the position to test.
* @param aLayerMask A layer or layers to mask the hit test. Use -1 to ignore
* layer mask.
* @return A TRACK object pointer if found otherwise NULL.
*/
extern TRACK* GetTrace( TRACK* aStartTrace, TRACK* aEndTrace, const wxPoint& aPosition,
int aLayerMask );
class TRACK : public BOARD_CONNECTED_ITEM
{
// make SetNext() and SetBack() private so that they may not be called from anywhere.
// list management is done on TRACKs using DLIST<TRACK> only.
private:
void SetNext( EDA_ITEM* aNext ) { Pnext = aNext; }
void SetBack( EDA_ITEM* aBack ) { Pback = aBack; }
public:
int m_Width; // Thickness of track, or via diameter
wxPoint m_Start; // Line start point
wxPoint m_End; // Line end point
int m_Shape; // vias: shape and type, Track = shape..
protected:
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int m_Drill; // for vias: via drill (- 1 for default value)
public:
BOARD_CONNECTED_ITEM* start; // pointers to a connected item (pad or track)
BOARD_CONNECTED_ITEM* end;
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double m_Param; // Auxiliary variable ( used in some computations )
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public:
TRACK( BOARD_ITEM* aParent, KICAD_T idtype = PCB_TRACE_T );
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// Do not create a copy constructor. The one generated by the compiler is adequate.
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TRACK* Next() const { return (TRACK*) Pnext; }
TRACK* Back() const { return (TRACK*) Pback; }
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virtual void Move( const wxPoint& aMoveVector )
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{
m_Start += aMoveVector;
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m_End += aMoveVector;
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}
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virtual void Rotate( const wxPoint& aRotCentre, double aAngle );
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virtual void Flip( const wxPoint& aCentre );
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void SetPosition( const wxPoint& aPos ) { m_Start = aPos; } // was overload
const wxPoint& GetPosition() const { return m_Start; } // was overload
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void SetWidth( int aWidth ) { m_Width = aWidth; }
int GetWidth() const { return m_Width; }
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void SetEnd( const wxPoint& aEnd ) { m_End = aEnd; }
const wxPoint& GetEnd() const { return m_End; }
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void SetStart( const wxPoint& aStart ) { m_Start = aStart; }
const wxPoint& GetStart() const { return m_Start; }
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EDA_RECT GetBoundingBox() const;
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/**
* Function GetBestInsertPoint
* searches the "best" insertion point within the track linked list.
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* The best point is the begging of the corresponding net code section.
* (The BOARD::m_Track and BOARD::m_Zone lists are sorted by netcode.)
* @param aPcb The BOARD to search for the insertion point.
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* @return TRACK* - the item found in the linked list (or NULL if no track)
*/
TRACK* GetBestInsertPoint( BOARD* aPcb );
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/* Search (within the track linked list) the first segment matching the netcode
* ( the linked list is always sorted by net codes )
*/
TRACK* GetStartNetCode( int NetCode );
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/* Search (within the track linked list) the last segment matching the netcode
* ( the linked list is always sorted by net codes )
*/
TRACK* GetEndNetCode( int NetCode );
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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
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{
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double dx = m_Start.x - m_End.x;
double dy = m_Start.y - m_End.y;
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return hypot( dx, dy );
}
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/* Display on screen: */
void Draw( EDA_DRAW_PANEL* panel, wxDC* DC, int aDrawMode,
const wxPoint& aOffset = ZeroOffset );
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/* divers */
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int GetShape() const { return m_Shape & 0xFF; }
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void SetShape( int aShape ) { m_Shape = aShape; }
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/**
* Function TransformShapeWithClearanceToPolygon
* Convert the track shape to a closed polygon
* Used in filling zones calculations
* Circles (vias) and arcs (ends of tracks) 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)
*/
void TransformShapeWithClearanceToPolygon( std::vector <CPolyPt>& aCornerBuffer,
int aClearanceValue,
int aCircleToSegmentsCount,
double aCorrectionFactor );
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/**
* Function SetDrill
* sets the drill value for vias.
* @param aDrill is the new drill diameter
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*/
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void SetDrill( int aDrill ) { m_Drill = aDrill; }
/**
* Function GetDrill
* returns the local drill setting for this VIA. If you want the calculated value,
* use GetDrillValue() instead.
*/
int GetDrill() const { return m_Drill; }
/**
* Function GetDrillValue
* "calculates" the drill value for vias (m-Drill if > 0, or default
* drill value for the board.
* @return real drill_value
*/
int GetDrillValue() const;
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/**
* Function SetDrillDefault
* sets the drill value for vias to the default value #UNDEFINED_DRILL_DIAMETER.
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*/
void SetDrillDefault() { m_Drill = UNDEFINED_DRILL_DIAMETER; }
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/**
* Function IsDrillDefault
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* @return true if the drill value is default value (-1)
*/
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bool IsDrillDefault() { return m_Drill <= 0; }
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/**
* Function ReturnMaskLayer
* returns a "layer mask", which is a bitmap of all layers on which the
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* TRACK segment or SEGVIA physically resides.
* @return int - a layer mask, see pcbstruct.h's LAYER_BACK, etc.
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*/
int ReturnMaskLayer() const;
/**
* Function IsPointOnEnds
* returns STARTPOINT if point if near (dist = min_dist) start point, ENDPOINT if
* point if near (dist = min_dist) end point,STARTPOINT|ENDPOINT if point if near
* (dist = min_dist) both ends, or 0 if none of the above.
* if min_dist < 0: min_dist = track_width/2
*/
int IsPointOnEnds( const wxPoint& point, int min_dist = 0 );
/**
* Function IsNull
* returns true if segment length is zero.
*/
bool IsNull();
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void DisplayInfo( EDA_DRAW_FRAME* frame );
/**
* Function DisplayInfoBase
* has knowledge about the frame and how and where to put status information
* about this object into the frame's message panel.
* Display info about the track segment only, and does not calculate the full track length
* @param frame A EDA_DRAW_FRAME in which to print status information.
*/
void DisplayInfoBase( EDA_DRAW_FRAME* frame );
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/**
* Function ShowWidth
* returns the width of the track in displayable user units.
*/
wxString ShowWidth() const;
SEARCH_RESULT Visit( INSPECTOR* inspector, const void* testData,
const KICAD_T scanTypes[] );
virtual bool HitTest( const wxPoint& aPosition );
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virtual bool HitTest( const EDA_RECT& aRect ) const;
/**
* Function GetVia
* finds the first SEGVIA object at \a aPosition on \a aLayer starting at the trace.
*
* @param aPosition The wxPoint to HitTest() against.
* @param aLayerMask The layer to match, pass -1 for a don't care.
* @return A pointer to a SEGVIA object if found, else NULL.
*/
TRACK* GetVia( const wxPoint& aPosition, int aLayerMask = -1 );
/**
* Function GetVia
* finds the first SEGVIA object at \a aPosition on \a aLayer starting at the trace
* and ending at \a aEndTrace.
*
* @param aEndTrace Pointer to the last TRACK object to end search.
* @param aPosition The wxPoint to HitTest() against.
* @param aLayerMask The layers to match, pass -1 for a don't care.
* @return A pointer to a SEGVIA object if found, else NULL.
*/
TRACK* GetVia( TRACK* aEndTrace, const wxPoint& aPosition, int aLayerMask );
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/**
* Function GetTrace
* return the trace segment connected to the segment at \a aEndPoint from \a
* aStartTrace to \a aEndTrace.
*
* @param aStartTrace A pointer to the TRACK object to begin searching.
* @param aEndTrace A pointer to the TRACK object to stop the search. A NULL value
* searches to the end of the list.
* @param aEndPoint The start or end point of the segment to test against.
* @return A TRACK object pointer if found otherwise NULL.
*/
TRACK* GetTrace( TRACK* aStartTrace, TRACK* aEndTrace, int aEndPoint );
/**
* Function GetEndSegments
* get the segments connected to the end point of the track.
* return 1 if OK, 0 when a track is a closed loop
* and the beginning and the end of the track in *StartTrack and *EndTrack
* Modify *StartTrack en *EndTrack :
* (*StartTrack)->m_Start coordinate is the beginning of the track
* (*EndTrack)->m_End coordinate is the end of the track
* Segments connected must be consecutive in list
*/
int GetEndSegments( int NbSegm, TRACK** StartTrack, TRACK** EndTrack );
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wxString GetClass() const
{
return wxT( "TRACK" );
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}
/**
* Function GetClearance
* returns the clearance in internal units. If \a aItem is not NULL then the
* returned clearance is the greater of this object's clearance and
* aItem's clearance. If \a aItem is NULL, then this objects clearance
* is returned.
* @param aItem is another BOARD_CONNECTED_ITEM or NULL
* @return int - the clearance in internal units.
*/
virtual int GetClearance( BOARD_CONNECTED_ITEM* aItem = NULL ) const;
virtual wxString GetSelectMenuText() const;
virtual BITMAP_DEF GetMenuImage() const { return showtrack_xpm; }
virtual EDA_ITEM* Clone() const;
#if defined (DEBUG)
void Show( int nestLevel, std::ostream& os ) const; // overload
/**
* Function ShowState
* converts a set of state bits to a wxString
* @param stateBits Is an OR-ed together set of bits like BUSY, EDIT, etc.
*/
static wxString ShowState( int stateBits );
#endif
};
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class SEGZONE : public TRACK
{
public:
SEGZONE( BOARD_ITEM* aParent );
// Do not create a copy constructor. The one generated by the compiler is adequate.
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wxString GetClass() const
{
return wxT( "ZONE" );
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}
SEGZONE* Next() const { return (SEGZONE*) Pnext; }
wxString GetSelectMenuText() const;
BITMAP_DEF GetMenuImage() const { return add_zone_xpm; }
EDA_ITEM* Clone() const;
};
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class SEGVIA : public TRACK
{
public:
SEGVIA( BOARD_ITEM* aParent );
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// Do not create a copy constructor. The one generated by the compiler is adequate.
void Draw( EDA_DRAW_PANEL* panel, wxDC* DC, int aDrawMode,
const wxPoint& aOffset = ZeroOffset );
bool IsOnLayer( int aLayer ) const;
/**
* Function SetLayerPair
* set the .m_Layer member param:
* For a via m_Layer contains the 2 layers :
* top layer and bottom layer used by the via.
* The via connect all layers from top layer to bottom layer
* 4 bits for the first layer and 4 next bits for the second layer
* @param top_layer = first layer connected by the via
* @param bottom_layer = last layer connected by the via
*/
void SetLayerPair( int top_layer, int bottom_layer );
/**
* Function ReturnLayerPair
* Return the 2 layers used by the via (the via actually uses
* all layers between these 2 layers)
* @param top_layer = pointer to the first layer (can be null)
* @param bottom_layer = pointer to the last layer (can be null)
*/
void ReturnLayerPair( int* top_layer, int* bottom_layer ) const;
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const wxPoint& GetPosition() const { return m_Start; } // was overload
void SetPosition( const wxPoint& aPoint ) { m_Start = aPoint; m_End = aPoint; } // was overload
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wxString GetClass() const
{
return wxT( "VIA" );
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}
wxString GetSelectMenuText() const;
BITMAP_DEF GetMenuImage() const { return via_sketch_xpm; }
EDA_ITEM* Clone() const;
#if defined (DEBUG)
void Show( int nestLevel, std::ostream& os ) const; // overload
#endif
};
#endif /* CLASS_TRACK_H */