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kicad/gerbview/gerber_file_image.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2010-2019 Jean-Pierre Charras jp.charras at wanadoo.fr
* Copyright (C) 1992-2021 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
*/
#ifndef GERBER_FILE_IMAGE_H
#define GERBER_FILE_IMAGE_H
#include <vector>
#include <set>
#include <dcode.h>
#include <gerber_draw_item.h>
#include <am_primitive.h>
#include <gbr_netlist_metadata.h>
// An useful macro used when reading gerber files;
#define IsNumber( x ) ( ( ( (x) >= '0' ) && ( (x) <='9' ) ) \
|| ( (x) == '-' ) || ( (x) == '+' ) || ( (x) == '.' ) )
typedef std::vector<GERBER_DRAW_ITEM*> GERBER_DRAW_ITEMS;
class GERBVIEW_FRAME;
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 instanced.
*
* In GerbView, to handle these parameters, there are 2 classes:
* GERBER_FILE_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_FILE_IMAGE per file and one graphic layer per file or GERBER_FILE_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 specific
* A GERBER_FILE_IMAGE must include one GERBER_LAYER to define all parameters to plot a file.
* But a GERBER_FILE_IMAGE can use more than one GERBER_LAYER.
*/
class GERBER_FILE_IMAGE;
class X2_ATTRIBUTE;
class X2_ATTRIBUTE_FILEFUNCTION;
// For arcs, coordinates need 3 info: start point, end point and center or radius
// In Excellon files it can be a A## value (radius) or I#J# center coordinates (like in gerber)
// We need to know the last read type when reading a list of routing coordinates
enum LAST_EXTRA_ARC_DATA_TYPE
{
ARC_INFO_TYPE_NONE,
ARC_INFO_TYPE_CENTER, // last info is a IJ command: arc center is given
ARC_INFO_TYPE_RADIUS, // last info is a A command: arc radius is given
};
class GERBER_LAYER
{
public:
GERBER_LAYER();
~GERBER_LAYER();
private:
void ResetDefaultValues();
friend class GERBER_FILE_IMAGE;
public:
// These parameters are layer specific:
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
};
/**
* Hold the image data and parameters for one gerber file and layer parameters.
*
* @todo: Move them in #GERBER_LAYER class.
*/
class GERBER_FILE_IMAGE : public EDA_ITEM
{
public:
GERBER_FILE_IMAGE( int layer );
virtual ~GERBER_FILE_IMAGE();
wxString GetClass() const override
{
return wxT( "GERBER_FILE_IMAGE" );
}
/**
* @brief Performs a heuristics-based check of whether the file is an RS274 gerber file.
*
* Does not invoke the full parser.
*
* @param aFullFileName aFullFileName is the full filename of the gerber file.
* @return True if RS274 file, false otherwise
*/
static bool TestFileIsRS274( const wxString& aFullFileName );
/**
* Read and load a gerber file.
*
* If the file cannot be loaded, warning and information messages are stored in m_messagesList.
*
* @param aFullFileName The full filename of the Gerber file.
* @return true if file loaded successfully, false if the gerber file was not loaded.
*/
bool LoadGerberFile( const wxString& aFullFileName );
const wxArrayString& GetMessages() const { return m_messagesList; }
/**
* @return the count of Dcode tools in use in the image
*/
int GetDcodesCount();
/**
* Set all parameters to a default value, before reading a file
*/
virtual void ResetDefaultValues();
COLOR4D GetPositiveDrawColor() const { return m_PositiveDrawColor; }
/**
* @return a reference to the GERBER_DRAW_ITEMS deque list
*/
GERBER_DRAW_ITEMS& GetItems() { return m_drawings; }
/**
* @return the count of GERBER_DRAW_ITEMS in the image
*/
int GetItemsCount() { return m_drawings.size(); }
/**
* Add a new GERBER_DRAW_ITEM item to the drawings list
*
* @param aItem is the GERBER_DRAW_ITEM to add to list
*/
void AddItemToList( GERBER_DRAW_ITEM* aItem )
{
m_drawings.push_back( aItem );
}
/**
* @return the last GERBER_DRAW_ITEM* item of the items list
*/
GERBER_DRAW_ITEM* GetLastItemInList() const
{
return m_drawings.back();
}
/**
* @return the current layers params.
*/
GERBER_LAYER& GetLayerParams()
{
return m_GBRLayerParams;
}
/**
* @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();
/**
* Clear the message list.
*
* Call it before reading a Gerber file
*/
void ClearMessageList()
{
m_messagesList.Clear();
}
/**
* Add a message to the message list
*/
void AddMessageToList( const wxString& aMessage )
{
m_messagesList.Add( aMessage );
}
void InitToolTable();
/**
* Return the current coordinate type pointed to by XnnYnn Text (XnnnnYmmmm).
*
* @param aText is a pointer to the text to parse.
* @param aExcellonMode = true to parse a Excellon drill file.
* it forces truncation of a digit string to a maximum length because the exact coordinate
* format is not always known.
*/
VECTOR2I ReadXYCoord( char*& aText, bool aExcellonMode = false );
/**
* Return the current coordinate type pointed to by InnJnn Text (InnnnJmmmm)
*
* These coordinates are relative, so if coordinate is absent, its value
* defaults to 0
*/
VECTOR2I ReadIJCoord( char*& Text );
/**
* Reads the next number and returns the value
* @param aText Pointer to the input string vector
* @return
*/
int CodeNumber( char*& aText );
/**
* Return 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 aCreateIfNoExist If true, then create the D_CODE if it does not
* exist in list.
* @return The one implied by the given \a aDCODE or NULL if the requested \a aDCODE is
* out of range.
*/
D_CODE* GetDCODEOrCreate( int aDCODE, bool aCreateIfNoExist = true );
/**
* Return 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.
* @return The D code implied by the given \a aDCODE or NULL if the requested \a aDCODE is
* out of range.
*/
D_CODE* GetDCODE( int aDCODE ) const;
/**
* Look up a previously read in aperture macro.
*
* @param aLookup A dummy APERTURE_MACRO with [only] the name field set.
* @return the aperture macro with a matching name or NULL if not found.
*/
APERTURE_MACRO* FindApertureMacro( const APERTURE_MACRO& aLookup );
/**
* 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 );
/**
* Display information about image parameters in the status bar.
*
* @param aMainFrame The #GERBVIEW_FRAME to display messages.
*/
void DisplayImageInfo( GERBVIEW_FRAME* aMainFrame );
/**
* Called when a %TD command is found the Gerber file
*
* Remove the attribute specified by the %TD command.
* is no attribute, all current attributes specified by the %TO and the %TA
* commands are cleared.
* if a attribute name is specified (for instance %TD.CN*%) is specified,
* only this attribute is cleared
*
* @param aAttribute is the X2_ATTRIBUTE which stores the full command
*/
void RemoveAttribute( X2_ATTRIBUTE& aAttribute );
///< @copydoc EDA_ITEM::Visit()
SEARCH_RESULT Visit( INSPECTOR inspector, void* testData, const KICAD_T scanTypes[] ) override;
#if defined(DEBUG)
void Show( int nestLevel, std::ostream& os ) const override { ShowDummy( os ); }
#endif
private:
/**
* Test for an end of line.
*
* If a end of line is found, read a new line.
*
* @param aBuff = buffer (size = GERBER_BUFZ) to fill with a new line
* @param aText = pointer to the last useful char in aBuff
* on return: points the beginning of the next line.
* @param aBuffSize = the size in bytes of aBuff
* @param aFile = the opened GERBER file to read
* @return a pointer to the beginning of the next line or NULL if end of file
*/
char* GetNextLine( char *aBuff, unsigned int aBuffSize, char* aText, FILE* aFile );
bool GetEndOfBlock( char* aBuff, unsigned int aBuffSize, char*& aText, FILE* aGerberFile );
/**
* Read a single RS274X command terminated with a %
*/
bool ReadRS274XCommand( char *aBuff, unsigned int aBuffSize, char*& aText );
/**
* Execute a RS274X command
*/
bool ExecuteRS274XCommand( int aCommand, char* aBuff, unsigned int aBuffSize, char*& aText );
/**
* Read two bytes of data and assembles them into an int with the first
* byte in the sequence put into the most significant part of a 16 bit value
* to build a RS274X command identifier.
*
* @param text A reference to a pointer to read bytes from and to advance as
* they are read.
* @return a RS274X command identifier.
*/
int ReadXCommandID( char*& text );
/**
* Read 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 aBuffSize is the size of aBuff
* @param gerber_file Which file to read from for continuation.
* @return true if a macro was read in successfully, else false.
*/
bool ReadApertureMacro( char *aBuff, unsigned int aBuffSize,
char* & text, FILE * gerber_file );
// functions to execute G commands or D basic commands:
bool Execute_G_Command( char*& text, int G_command );
bool Execute_DCODE_Command( char*& text, int D_command );
public:
bool m_InUse; // true if this image is currently in use
// (a file is loaded in it)
///< True if the draw layer is visible and must be drawn.
bool m_IsVisible;
// false if it must be not drawn
COLOR4D m_PositiveDrawColor; // The color used to draw positive items
wxString m_FileName; // Full File Name for this layer
wxString m_ImageName; // Image name, from IN <name>* command
///< True if a X2 gerber attribute was found in file.
bool m_IsX2_file;
X2_ATTRIBUTE_FILEFUNCTION* m_FileFunction; // file function parameters, found in a
// %TF command or a G04
wxString m_MD5_value; // MD5 value found in a %TF.MD5 command
wxString m_PartString; // string found in a %TF.Part command
int m_GraphicLayer; // Graphic layer Number
bool m_ImageNegative; // true = Negative image
///< Image Justify Center on X axis (default = false).
bool m_ImageJustifyXCenter;
///< Image Justify Center on Y axis (default = false).
bool m_ImageJustifyYCenter;
///< Image Justify Offset on XY axis (default = 0,0).
VECTOR2I m_ImageJustifyOffset;
bool m_GerbMetric; // false = Inches, true = metric
///< false = absolute Coord, true = relative Coord.
bool m_Relative;
bool m_NoTrailingZeros; // true: remove tailing zeros.
VECTOR2I m_ImageOffset; // Coord Offset, from IO command
///< Fmt 2.3: m_FmtScale = 3, fmt 3.4: m_FmtScale = 4.
wxSize m_FmtScale;
///< Nb chars per coord. ex fmt 2.3, m_FmtLen = 5.
wxSize m_FmtLen;
///< Image rotation (0, 90, 180, 270 only) in degrees.
int m_ImageRotation;
///< Local rotation in degrees added to m_ImageRotation.
///< @note This value is stored in 0.1 degrees.
double m_LocalRotation;
VECTOR2I m_Offset; // Coord Offset, from OF command
VECTOR2I 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: mirror / axis A (X)
bool m_MirrorB; // true: mirror / axis B (Y)
int m_Iterpolation; // Linear, 90 arc, Circ.
int m_Current_Tool; // Current Tool (Dcode) number selected
///< Current or last pen state (0..9, set by Dn option with n < 10.
int m_Last_Pen_Command;
int m_CommandState; // state of gerber analysis command.
///< Line number of the gerber file while reading.
int m_LineNum;
VECTOR2I m_CurrentPos; // current specified coord for plot
VECTOR2I m_PreviousPos; // old current specified coord for plot
VECTOR2I m_IJPos; // IJ coord (for arcs & circles )
///< True if a IJ coord was read (for arcs & circles ).
bool m_LastCoordIsIJPos;
///< A value ( = radius in circular routing in Excellon files ).
int m_ArcRadius;
///< Identifier for arc data type (IJ (center) or A## (radius)).
LAST_EXTRA_ARC_DATA_TYPE m_LastArcDataType;
FILE* m_Current_File; // Current file to read
int m_Selected_Tool; // For highlight: current selected Dcode
///< True if has DCodes in file or false if no DCodes found. Perhaps deprecated RS274D file.
bool m_Has_DCode;
// true = some DCodes in file are not defined (broken file or deprecated RS274D file).
bool m_Has_MissingDCode;
bool m_360Arc_enbl; // Enable 360 deg circular interpolation
// Set to true when a circular interpolation command type is found. Mandatory before
// drawing an arc.
bool m_AsArcG74G75Cmd;
// Enable polygon mode (read coord as a polygon descr)
bool m_PolygonFillMode;
// In polygon mode: 0 = first segm, 1 = next segm
int m_PolygonFillModeState;
///< a collection of APERTURE_MACROS, sorted by name
APERTURE_MACRO_SET m_aperture_macros;
// the net attributes set by a %TO.CN, %TO.C and/or %TO.N add object attribute command.
GBR_NETLIST_METADATA m_NetAttributeDict;
// the aperture function set by a %TA.AperFunction, xxx (stores the xxx value).
wxString m_AperFunction;
std::map<wxString, int> m_ComponentsList; // list of components
std::map<wxString, int> m_NetnamesList; // list of net names
///< Dcode (Aperture) List for this layer (max TOOLS_MAX_COUNT: see dcode.h)
D_CODE* m_Aperture_List[TOOLS_MAX_COUNT];
///< Whether an aperture macro tool is flashed on or off.
bool m_Exposure;
GERBER_LAYER m_GBRLayerParams; // hold params for the current gerber layer
GERBER_DRAW_ITEMS m_drawings; // linked list of Gerber Items to draw
private:
wxArrayString m_messagesList; // A list of messages created when reading a file
/**
* 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 specific to this image.
*
* - -1 negative items are.
* - 0 no negative items found.
* - 1 have negative items found.
*/
int m_hasNegativeItems;
};
#endif // ifndef GERBER_FILE_IMAGE_H
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