kicad/gerbview/class_GERBER.h

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/******************/
/* class_GERBER.h */
/******************/
#ifndef _CLASS_GERBER_H_
#define _CLASS_GERBER_H_
#include <vector>
#include <set>
#include <dcode.h>
#include <class_gerber_draw_item.h>
#include <class_aperture_macro.h>
// An useful macro used when reading gerber files;
#define IsNumber( x ) ( ( ( (x) >= '0' ) && ( (x) <='9' ) ) \
|| ( (x) == '-' ) || ( (x) == '+' ) || ( (x) == '.' ) )
class GERBVIEW_FRAME;
class BOARD;
class D_CODE;
/* gerber files have different parameters to define units and how items must be plotted.
* some are for the entire file, and other can change along a file.
* In Gerber world:
* an image is the entire gerber file and its "global" parameters
* a layer (that is very different from a board layer) is just a sub set of a file that
* have specific parameters
* if a Image parameter is set more than once, only the last value is used
* Some parameters can change along a file and are not layer specific: they are stored
* in GERBER_ITEM items, when instancied.
*
* In GerbView, to handle these parameters, there are 2 classes:
* GERBER_IMAGE : the main class containing most of parameters and data to plot a graphic layer
* Some of them can change along the file
* There is one GERBER_IMAGE per file and one graphic layer per file or GERBER_IMAGE
* GerbView does not read and merge 2 gerber file in one graphic layer:
* I believe this is not possible due to the constraints in Image parameters.
* GERBER_LAYER : containing the subset of parameters that is layer speficic
* A GERBER_IMAGE must include one GERBER_LAYER to define all parameters to plot a file.
* But a GERBER_IMAGE can use more than one GERBER_LAYER.
*/
class GERBER_IMAGE;
class GERBER_LAYER
{
friend class GERBER_IMAGE;
public:
// These parameters are layer specfic:
wxString m_LayerName; // Layer name, from LN <name>* command
bool m_LayerNegative; // true = Negative Layer: command LP
wxRealPoint m_StepForRepeat; // X and Y offsets for Step and Repeat command
int m_XRepeatCount; // The repeat count on X axis
int m_YRepeatCount; // The repeat count on Y axis
bool m_StepForRepeatMetric; // false = Inches, true = metric
// needed here because repeated
// gerber items can have coordinates
// in different units than step parameters
// and the actual coordinates calculation must handle this
public:
GERBER_LAYER();
~GERBER_LAYER();
private:
void ResetDefaultValues();
};
/**
* Class GERBER_IMAGE
* holds the Image data and parameters for one gerber file
* and layer parameters (TODO: move them in GERBER_LAYER class
*/
class GERBER_IMAGE
{
GERBVIEW_FRAME* m_Parent; // the parent GERBVIEW_FRAME (used to display messages...)
D_CODE* m_Aperture_List[TOOLS_MAX_COUNT]; ///< Dcode (Aperture) List for this layer (max 999)
bool m_Exposure; ///< whether an aperture macro tool is flashed on or off
BOARD* m_Pcb;
GERBER_LAYER m_GBRLayerParams; // hold params for the current gerber layer
public:
bool m_InUse; // true if this image is currently in use
// (a file is loaded in it)
wxString m_FileName; // Full File Name for this layer
wxString m_ImageName; // Image name, from IN <name>* command
int m_GraphicLayer; // Graphic layer Number
bool m_ImageNegative; // true = Negative image
bool m_ImageJustifyXCenter; // Image Justify Center on X axis (default = false)
bool m_ImageJustifyYCenter; // Image Justify Center on Y axis (default = false)
wxPoint m_ImageJustifyOffset; // Image Justify Offset on XY axis (default = 0,0)
bool m_GerbMetric; // false = Inches, true = metric
bool m_Relative; // false = absolute Coord, true = relative Coord
bool m_NoTrailingZeros; // true: remove tailing zeros.
bool m_DecimalFormat; // true: use floating point notations for coordinates
// If true, overrides m_NoTrailingZeros parameter.
wxPoint m_ImageOffset; // Coord Offset, from IO command
wxSize m_FmtScale; // Fmt 2.3: m_FmtScale = 3, fmt 3.4: m_FmtScale = 4
wxSize m_FmtLen; // Nb chars per coord. ex fmt 2.3, m_FmtLen = 5
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int m_ImageRotation; // Image rotation (0, 90, 180, 270 only) in degrees
double m_LocalRotation; // Local rotation, in degrees, added to m_ImageRotation
// Note this value is stored in 0.1 degrees
wxPoint m_Offset; // Coord Offset, from OF command
wxRealPoint m_Scale; // scale (X and Y) of layer.
bool m_SwapAxis; // false (default) if A = X and B = Y
// true if A = Y, B = X
bool m_MirrorA; // true: miror / axe A (X)
bool m_MirrorB; // true: miror / axe B (Y)
int m_Iterpolation; // Linear, 90 arc, Circ.
int m_Current_Tool; // Current Tool (Dcode) number selected
int m_Last_Pen_Command; // Current or last pen state (0..9, set by Dn option with n <10
int m_CommandState; // state of gerber analysis command.
wxPoint m_CurrentPos; // current specified coord for plot
wxPoint m_PreviousPos; // old current specified coord for plot
wxPoint m_IJPos; // IJ coord (for arcs & circles )
FILE* m_Current_File; // Current file to read
#define INCLUDE_FILES_CNT_MAX 10
FILE* m_FilesList[INCLUDE_FILES_CNT_MAX + 2]; // Included files list
int m_FilesPtr; // Stack pointer for files list
int m_Selected_Tool; // For hightlight: current selected Dcode
bool m_Has_DCode; // true = DCodes in file
// (false = no DCode -> separate DCode file
bool m_360Arc_enbl; // Enbl 360 deg circular interpolation
bool m_PolygonFillMode; // Enable polygon mode (read coord as a polygon descr)
int m_PolygonFillModeState; // In polygon mode: 0 = first segm, 1 = next segm
APERTURE_MACRO_SET m_aperture_macros; ///< a collection of APERTURE_MACROS, sorted by name
private:
int m_hasNegativeItems; // true if the image is negative or has some negative items
// Used to optimize drawing, because when there are no
// negative items screen refresh does not need
// to build an intermediate bitmap specfic to this image
// -1 = negative items are
// 0 = no negative items found
// 1 = have negative items found
public:
GERBER_IMAGE( GERBVIEW_FRAME* aParent, int layer );
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virtual ~GERBER_IMAGE();
void Clear_GERBER_IMAGE();
int ReturnUsedDcodeNumber();
virtual void ResetDefaultValues();
/**
* Function GetParent
* @return the GERBVIEW_FRAME parent of this GERBER_IMAGE
*/
GERBVIEW_FRAME* GetParent()
{
return m_Parent;
}
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/**
* Function GetLayerParams
* @return the current layers params
*/
GERBER_LAYER& GetLayerParams()
{
return m_GBRLayerParams;
}
/**
* Function HasNegativeItems
* @return true if at least one item must be drawn in background color
* used to optimize screen refresh (when no items are in background color
* refresh can be faster)
*/
bool HasNegativeItems();
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/**
* Function ReportMessage
* Add a message (a string) in message list
* for instance when reading a Gerber file
* @param aMessage = the straing to add in list
*/
void ReportMessage( const wxString aMessage );
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/**
* Function ClearMessageList
* Clear the message list
* Call it before reading a Gerber file
*/
void ClearMessageList();
/**
* Function InitToolTable
*/
void InitToolTable();
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/**
* Function ReadXYCoord
* Returns the current coordinate type pointed to by XnnYnn Text (XnnnnYmmmm)
*/
wxPoint ReadXYCoord( char*& Text );
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/**
* Function ReadIJCoord
* Returns the current coordinate type pointed to by InnJnn Text (InnnnJmmmm)
* These coordinates are relative, so if coordinate is absent, it's value
* defaults to 0
*/
wxPoint ReadIJCoord( char*& Text );
// functions to read G commands or D commands:
int ReturnGCodeNumber( char*& Text );
int ReturnDCodeNumber( char*& Text );
// functions to execute G commands or D commands:
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bool Execute_G_Command( char*& text, int G_command );
bool Execute_DCODE_Command( char*& text, int D_command );
/**
* Function ReadRS274XCommand
* reads a single RS274X command terminated with a %
*/
bool ReadRS274XCommand( char aBuff[GERBER_BUFZ], char* & text );
/**
* Function ExecuteRS274XCommand
* executes 1 command
*/
bool ExecuteRS274XCommand( int command, char aBuff[GERBER_BUFZ],
char* & text );
/**
* Function ReadApertureMacro
* reads in an aperture macro and saves it in m_aperture_macros.
* @param aBuff a character buffer at least GERBER_BUFZ long that can be
* used to read successive lines from the gerber file.
* @param text A reference to a character pointer which gives the initial
* text to read from.
* @param gerber_file Which file to read from for continuation.
* @return bool - true if a macro was read in successfully, else false.
*/
bool ReadApertureMacro( char aBuff[GERBER_BUFZ], char* & text,
FILE * gerber_file );
/**
* Function GetDCODE
* returns a pointer to the D_CODE within this GERBER for the given
* \a aDCODE.
* @param aDCODE The numeric value of the D_CODE to look up.
* @param createIfNoExist If true, then create the D_CODE if it does not
* exist.
* @return D_CODE* - the one implied by the given \a aDCODE, or NULL
* if the requested \a aDCODE is out of range.
*/
D_CODE* GetDCODE( int aDCODE, bool createIfNoExist = true );
/**
* Function FindApertureMacro
* looks up a previously read in aperture macro.
* @param aLookup A dummy APERTURE_MACRO with [only] the name field set.
* @return APERTURE_MACRO* - the one with a matching name, or NULL if
* not found.
*/
APERTURE_MACRO* FindApertureMacro( const APERTURE_MACRO& aLookup );
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/**
* Function StepAndRepeatItem
* Gerber format has a command Step an Repeat
* This function must be called when reading a gerber file and
* after creating a new gerber item that must be repeated
* (i.e when m_XRepeatCount or m_YRepeatCount are > 1)
* @param aItem = the item to repeat
*/
void StepAndRepeatItem( const GERBER_DRAW_ITEM& aItem );
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/**
* Function DisplayImageInfo
* 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 Image Parameters.
*/
void DisplayImageInfo( void );
};
#endif // ifndef _CLASS_GERBER_H_