/**
* @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 "PolyLine.h"
class TRACK;
// 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 */
/**
* 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:
int m_Drill; // for vias: via drill (- 1 for default value)
public:
BOARD_ITEM* start; // pointers to a connected item (pad or track)
BOARD_ITEM* end;
int m_Param; // Auxiliary variable ( used in some computations )
protected:
TRACK( const TRACK& track ); // protected so Copy() is used instead.
public:
TRACK( BOARD_ITEM* aParent, KICAD_T idtype = TYPE_TRACK );
/**
* Function Copy
* will copy this object whether it is a TRACK or a SEGVIA returning
* the corresponding type.
* Because of the way SEGVIA and SEGZONE are derived from TRACK and because there are
* virtual functions being used, we can no longer simply copy a TRACK and
* expect it to be a via or zone. We must construct a true SEGVIA or SEGZONE so its
* constructor can initialize the virtual function table properly. This factory type
* of function called Copy() can duplicate either a TRACK, SEGVIA, or SEGZONE.
*
* @return - TRACK*, SEGVIA*, or SEGZONE*, declared as the least common
* denominator: TRACK
*/
TRACK* Copy() const;
TRACK* Next() const { return (TRACK*) Pnext; }
TRACK* Back() const { return (TRACK*) Pback; }
/**
* Function Move
* move this object.
* @param aMoveVector - the move vector for this object.
*/
virtual void Move( const wxPoint& aMoveVector )
{
m_Start += aMoveVector;
m_End += aMoveVector;
}
/**
* Function Rotate
* Rotate this object.
* @param aRotCentre - the rotation point.
* @param aAngle - the rotation angle in 0.1 degree.
*/
virtual void Rotate( const wxPoint& aRotCentre, int aAngle );
/**
* Function Flip
* Flip this object, i.e. change the board side for this object
* @param aCentre - the rotation point.
*/
virtual void Flip( const wxPoint& aCentre );
/**
* Function GetPosition
* returns the position of this object.
* @return const wxPoint& - The position of this object.
*/
wxPoint& GetPosition()
{
return m_Start; // it had to be start or end.
}
EDA_RECT GetBoundingBox() const;
/**
* Function Save
* writes the data structures for this object out to a FILE in "*.brd" format.
* @param aFile The FILE to write to.
* @return bool - true if success writing else false.
*/
bool Save( FILE* aFile ) const;
/**
* Function GetBestInsertPoint
* searches the "best" insertion point within the track linked list.
* 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.
* @return TRACK* - the item found in the linked list (or NULL if no track)
*/
TRACK* GetBestInsertPoint( BOARD* aPcb );
/* 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 );
/* 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 );
/**
* Function GetLength
* returns the length of the track using the hypotenuse calculation.
* @return double - the length of the track
*/
double GetLength() const
{
int dx = m_Start.x - m_End.x;
int dy = m_Start.y - m_End.y;
return hypot( dx, dy );
}
/* Display on screen: */
void Draw( EDA_DRAW_PANEL* panel, wxDC* DC, int aDrawMode,
const wxPoint& aOffset = ZeroOffset );
/* divers */
int Shape() const { return m_Shape & 0xFF; }
/**
* 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 );
/**
* Function SetDrillValue
* Set the drill value for vias
* @param drill_value = new drill value
*/
void SetDrillValue( int drill_value ) { m_Drill = drill_value; }
/**
* Function SetDrillDefault
* Set the drill value for vias at default value (-1)
*/
void SetDrillDefault( void ) { m_Drill = -1; }
/**
* Function IsDrillDefault
* @return true if the drill value is default value (-1)
*/
bool IsDrillDefault( void ) { return m_Drill <= 0; }
/**
* Function GetDrillValue
* calculate the drill value for vias (m-Drill if > 0, or default drill value for the board
* @return real drill_value
*/
int GetDrillValue() const;
/**
* Function ReturnMaskLayer
* returns a "layer mask", which is a bitmap of all layers on which the
* TRACK segment or SEGVIA physically resides.
* @return int - a layer mask, see pcbstruct.h's LAYER_BACK, etc.
*/
int ReturnMaskLayer();
/**
* 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();
/**
* Function DisplayInfo
* has knowledge about the frame and how and where to put status information
* about this object into the frame's message panel.
* Is virtual from EDA_ITEM.
* Display info about the track segment and the full track length
* @param frame A EDA_DRAW_FRAME in which to print status information.
*/
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 );
/**
* Function ShowWidth
* returns the width of the track in displayable user units.
*/
wxString ShowWidth() const;
/**
* Function Visit
* is re-implemented here because TRACKs and SEGVIAs are in the same list
* within BOARD. If that were not true, then we could inherit the
* version from EDA_ITEM. This one does not iterate through scanTypes
* but only looks at the first item in the list.
* @param inspector An INSPECTOR instance to use in the inspection.
* @param testData Arbitrary data used by the inspector.
* @param scanTypes Which KICAD_T types are of interest and the order
* is significant too, terminated by EOT.
* @return SEARCH_RESULT - SEARCH_QUIT if the Iterator is to stop the scan,
* else SCAN_CONTINUE, and determined by the inspector.
*/
SEARCH_RESULT Visit( INSPECTOR* inspector, const void* testData,
const KICAD_T scanTypes[] );
/**
* Function HitTest
* tests if the given wxPoint is within the bounds of this object.
* @param refPos A wxPoint to test
* @return bool - true if a hit, else false
*/
bool HitTest( const wxPoint& refPos );
/**
* Function HitTest (overlaid)
* tests if the given wxRect intersect this object.
* For now, an ending point must be inside this rect.
* @param refArea an EDA_RECT to test
* @return bool - true if a hit, else false
*/
bool HitTest( EDA_RECT& refArea );
/**
* 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 );
/**
* 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 );
/**
* Function GetClass
* returns the class name.
* @return wxString
*/
wxString GetClass() const
{
return wxT( "TRACK" );
}
/**
* 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; }
#if defined (DEBUG)
/**
* Function Show
* is used to output the object tree, currently for debugging only.
* @param nestLevel An aid to prettier tree indenting, and is the level
* of nesting of this object within the overall tree.
* @param os The ostream& to output to.
*/
void Show( int nestLevel, std::ostream& os );
/**
* 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
};
class SEGZONE : public TRACK
{
public:
SEGZONE( BOARD_ITEM* aParent );
/**
* Function GetClass
* returns the class name.
* @return wxString
*/
wxString GetClass() const
{
return wxT( "ZONE" );
}
SEGZONE* Next() const { return (SEGZONE*) Pnext; }
virtual wxString GetSelectMenuText() const;
virtual BITMAP_DEF GetMenuImage() const { return add_zone_xpm; }
};
class SEGVIA : public TRACK
{
public:
SEGVIA( BOARD_ITEM* aParent );
SEGVIA( const SEGVIA& source ) :
TRACK( source )
{
}
void Draw( EDA_DRAW_PANEL* panel, wxDC* DC, int aDrawMode,
const wxPoint& aOffset = ZeroOffset );
/**
* Function IsOnLayer
* tests to see if this object is on the given layer. Is virtual
* from BOARD_ITEM. Tests the starting and ending range of layers for the via.
* @param aLayer the layer to test for.
* @return bool - true if on given layer, else false.
*/
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 secaon 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;
/**
* Function GetPosition
* returns the position of this object.
* @return const wxPoint& - The position of this object.
*/
wxPoint& GetPosition()
{
return m_Start;
}
void SetPosition( const wxPoint& aPoint ) { m_Start = aPoint; m_End = aPoint; }
/**
* Function GetClass
* returns the class name.
* @return wxString
*/
wxString GetClass() const
{
return wxT( "VIA" );
}
virtual wxString GetSelectMenuText() const;
virtual BITMAP_DEF GetMenuImage() const { return via_sketch_xpm; }
#if defined (DEBUG)
/**
* Function Show
* is used to output the object tree, currently for debugging only.
* @param nestLevel An aid to prettier tree indenting, and is the level
* of nesting of this object within the overall tree.
* @param os The ostream& to output to.
*/
void Show( int nestLevel, std::ostream& os );
#endif
};
#endif /* CLASS_TRACK_H */