pcbplot.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2018 Jean-Pierre Charras, jp.charras at wanadoo.fr
 * Copyright (C) 2012 SoftPLC Corporation, Dick Hollenbeck <[email protected]>
 * Copyright (C) 1992-2024 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
 */
 
#include <plotters/plotter.h>
#include <pcbplot.h>
#include <base_units.h>
#include <lset.h>
#include <locale_io.h>
#include <reporter.h>
#include <board.h>
#include <board_design_settings.h>
#include <plotcontroller.h>
#include <pcb_plot_params.h>
#include <wx/ffile.h>
#include <dialog_plot.h>
#include <build_version.h>
#include <gbr_metadata.h>
#include <render_settings.h>
 
 
const wxString GetGerberProtelExtension( int aLayer )
{
 if( IsCopperLayer( aLayer ) )
 {
 if( aLayer == F_Cu )
 return wxT( "gtl" );
 else if( aLayer == B_Cu )
 return wxT( "gbl" );
 else
 return wxString::Format( wxT( "g%d" ), aLayer+1 );
 }
 else
 {
 switch( aLayer )
 {
 case B_Adhes: return wxT( "gba" );
 case F_Adhes: return wxT( "gta" );
 
 case B_Paste: return wxT( "gbp" );
 case F_Paste: return wxT( "gtp" );
 
 case B_SilkS: return wxT( "gbo" );
 case F_SilkS: return wxT( "gto" );
 
 case B_Mask: return wxT( "gbs" );
 case F_Mask: return wxT( "gts" );
 
 case Edge_Cuts: return wxT( "gm1" );
 
 case Dwgs_User:
 case Cmts_User:
 case Eco1_User:
 case Eco2_User:
 default: return wxT( "gbr" );
 }
 }
}
 
 
const wxString GetGerberFileFunctionAttribute( const BOARD* aBoard, int aLayer )
{
 wxString attrib;
 
 switch( aLayer )
 {
 case F_Adhes:
 attrib = wxT( "Glue,Top" );
 break;
 
 case B_Adhes:
 attrib = wxT( "Glue,Bot" );
 break;
 
 case F_SilkS:
 attrib = wxT( "Legend,Top" );
 break;
 
 case B_SilkS:
 attrib = wxT( "Legend,Bot" );
 break;
 
 case F_Mask:
 attrib = wxT( "Soldermask,Top" );
 break;
 
 case B_Mask:
 attrib = wxT( "Soldermask,Bot" );
 break;
 
 case F_Paste:
 attrib = wxT( "Paste,Top" );
 break;
 
 case B_Paste:
 attrib = wxT( "Paste,Bot" );
 break;
 
 case Edge_Cuts:
 // Board outline.
 // Can be "Profile,NP" (Not Plated: usual) or "Profile,P"
 // This last is the exception (Plated)
 attrib = wxT( "Profile,NP" );
 break;
 
 case Dwgs_User:
 attrib = wxT( "OtherDrawing,Comment" );
 break;
 
 case Cmts_User:
 attrib = wxT( "Other,Comment" );
 break;
 
 case Eco1_User:
 attrib = wxT( "Other,ECO1" );
 break;
 
 case Eco2_User:
 attrib = wxT( "Other,ECO2" );
 break;
 
 case B_Fab:
 // This is actually a assembly layer
 attrib = wxT( "AssemblyDrawing,Bot" );
 break;
 
 case F_Fab:
 // This is actually a assembly layer
 attrib = wxT( "AssemblyDrawing,Top" );
 break;
 
 case B_Cu:
 attrib.Printf( wxT( "Copper,L%d,Bot" ), aBoard->GetCopperLayerCount() );
 break;
 
 case F_Cu:
 attrib = wxT( "Copper,L1,Top" );
 break;
 
 default:
 if( IsCopperLayer( aLayer ) )
 attrib.Printf( wxT( "Copper,L%d,Inr" ), aLayer+1 );
 else
 attrib.Printf( wxT( "Other,User" ), aLayer+1 );
 break;
 }
 
 // This code adds a optional parameter: the type of copper layers.
 // Because it is not used by Pcbnew (it can be used only by external autorouters)
 // user do not really set this parameter.
 // Therefore do not add it.
 // However, this code is left here, for perhaps a future usage.
#if 0
 // Add the signal type of the layer, if relevant
 if( IsCopperLayer( aLayer ) )
 {
 LAYER_T type = aBoard->GetLayerType( ToLAYER_ID( aLayer ) );
 
 switch( type )
 {
 case LT_SIGNAL:
 attrib += wxT( ",Signal" );
 break;
 case LT_POWER:
 attrib += wxT( ",Plane" );
 break;
 case LT_MIXED:
 attrib += wxT( ",Mixed" );
 break;
 default:
 break; // do nothing (but avoid a warning for unhandled LAYER_T values from GCC)
 }
 }
#endif
 
 wxString fileFct;
 fileFct.Printf( wxT( "%%TF.FileFunction,%s*%%" ), attrib );
 
 return fileFct;
}
 
 
static const wxString GetGerberFilePolarityAttribute( int aLayer )
{
 /* build the string %TF.FilePolarity,Positive*%
 * or %TF.FilePolarity,Negative*%
 * an emply string for layers which do not use a polarity
 *
 * The value of the .FilePolarity specifies whether the image represents the
 * presence or absence of material.
 * This attribute can only be used when the file represents a pattern in a material layer,
 * e.g. copper, solder mask, legend.
 * Together with.FileFunction it defines the role of that image in
 * the layer structure of the PCB.
 * Note that the .FilePolarity attribute does not change the image -
 * no attribute does.
 * It changes the interpretation of the image.
 * For example, in a copper layer in positive polarity a round flash generates a copper pad.
 * In a copper layer in negative polarity it generates a clearance.
 * Solder mask images usually represent solder mask openings and are then negative.
 * This may be counter-intuitive.
 */
 int polarity = 0;
 
 switch( aLayer )
 {
 case F_Adhes:
 case B_Adhes:
 case F_SilkS:
 case B_SilkS:
 case F_Paste:
 case B_Paste:
 polarity = 1;
 break;
 
 case F_Mask:
 case B_Mask:
 polarity = -1;
 break;
 
 default:
 if( IsCopperLayer( aLayer ) )
 polarity = 1;
 break;
 }
 
 wxString filePolarity;
 
 if( polarity == 1 )
 filePolarity = wxT( "%TF.FilePolarity,Positive*%" );
 if( polarity == -1 )
 filePolarity = wxT( "%TF.FilePolarity,Negative*%" );
 
 return filePolarity;
}
 
 
/* Add some X2 attributes to the file header, as defined in the
 * Gerber file format specification J4 and "Revision 2015.06"
 */
 
 
// A helper function to convert a X2 attribute string to a X1 structured comment:
static wxString& makeStringCompatX1( wxString& aText, bool aUseX1CompatibilityMode )
{
 if( aUseX1CompatibilityMode )
 {
 aText.Replace( wxT( "%" ), wxEmptyString );
 aText.Prepend( wxT( "G04 #@! " ) );
 }
 
 return aText;
}
 
 
// A helper function to replace reserved chars (separators in gerber fields)
// in a gerber string field.
// reserved chars are replaced by _ (for ,) or an escaped sequence (for * and %)
static void replaceReservedCharsField( wxString& aMsg )
{
 aMsg.Replace( wxT( "," ), wxT( "_" ) ); // can be replaced by \\u002C
 aMsg.Replace( wxT( "*" ), wxT( "\\u002A" ) );
 aMsg.Replace( wxT( "%" ), wxT( "\\u0025" ) );
}
 
 
void AddGerberX2Header( PLOTTER* aPlotter, const BOARD* aBoard, bool aUseX1CompatibilityMode )
{
 wxString text;
 
 // Creates the TF,.GenerationSoftware. Format is:
 // %TF,.GenerationSoftware,<vendor>,<application name>[,<application version>]*%
 text.Printf( wxT( "%%TF.GenerationSoftware,KiCad,Pcbnew,%s*%%" ), GetBuildVersion() );
 aPlotter->AddLineToHeader( makeStringCompatX1( text, aUseX1CompatibilityMode ) );
 
 // creates the TF.CreationDate attribute:
 text = GbrMakeCreationDateAttributeString( aUseX1CompatibilityMode ? GBR_NC_STRING_FORMAT_X1
 : GBR_NC_STRING_FORMAT_X2 );
 aPlotter->AddLineToHeader( text );
 
 // Creates the TF,.ProjectId. Format is (from Gerber file format doc):
 // %TF.ProjectId,<project id>,<project GUID>,<revision id>*%
 // <project id> is the name of the project, restricted to basic ASCII symbols only,
 // Rem: <project id> accepts only ASCII 7 code (only basic ASCII codes are allowed in
 // gerber files) and comma not accepted.
 // All illegal chars will be replaced by underscore.
 //
 // <project GUID> is a string which is an unique id of a project.
 // However Kicad does not handle such a project GUID, so it is built from the board name
 wxFileName fn = aBoard->GetFileName();
 wxString msg = fn.GetFullName();
 
 // Build a <project GUID>, from the board name
 wxString guid = GbrMakeProjectGUIDfromString( msg );
 
 // build the <project id> string: this is the board short filename (without ext)
 // and all non ASCII chars and reserved chars (, * % ) are replaced by '_'
 msg = fn.GetName();
 replaceReservedCharsField( msg );
 
 // build the <revision id> string. All non ASCII chars and reserved chars are replaced by '_'
 wxString rev = ExpandTextVars( aBoard->GetTitleBlock().GetRevision(), aBoard->GetProject() );
 replaceReservedCharsField( rev );
 
 if( rev.IsEmpty() )
 rev = wxT( "rev?" );
 
 text.Printf( wxT( "%%TF.ProjectId,%s,%s,%s*%%" ), msg.ToAscii(), guid, rev.ToAscii() );
 aPlotter->AddLineToHeader( makeStringCompatX1( text, aUseX1CompatibilityMode ) );
 
 // Add the TF.SameCoordinates to specify that all gerber files uses the same origin and
 // orientation, and the registration between files is OK.
 // The parameter of TF.SameCoordinates is a string that is common to all files using the
 // same registration. The string value has no meaning; it is just a key.
 // Because there is no mirroring/rotation in Kicad, only the plot offset origin can create
 // incorrect registration, so we create a key from plot offset options.
 //
 // Currently the key is "Original" when using absolute Pcbnew coordinates, and the PY and PY
 // position of the auxiliary axis when using it.
 // If we ever add user-settable absolute Pcbnew coordinates, we'll need to change the way
 // the key is built to ensure file only using the *same* axis have the same key.
 wxString registration_id = wxT( "Original" );
 VECTOR2I auxOrigin = aBoard->GetDesignSettings().GetAuxOrigin();
 
 if( aBoard->GetPlotOptions().GetUseAuxOrigin() && auxOrigin.x && auxOrigin.y )
 registration_id.Printf( wxT( "PX%xPY%x" ), auxOrigin.x, auxOrigin.y );
 
 text.Printf( wxT( "%%TF.SameCoordinates,%s*%%" ), registration_id.GetData() );
 aPlotter->AddLineToHeader( makeStringCompatX1( text, aUseX1CompatibilityMode ) );
}
 
 
void AddGerberX2Attribute( PLOTTER* aPlotter, const BOARD* aBoard, int aLayer,
 bool aUseX1CompatibilityMode )
{
 AddGerberX2Header( aPlotter, aBoard, aUseX1CompatibilityMode );
 
 wxString text;
 
 // Add the TF.FileFunction
 text = GetGerberFileFunctionAttribute( aBoard, aLayer );
 aPlotter->AddLineToHeader( makeStringCompatX1( text, aUseX1CompatibilityMode ) );
 
 // Add the TF.FilePolarity (for layers which support that)
 text = GetGerberFilePolarityAttribute( aLayer );
 
 if( !text.IsEmpty() )
 aPlotter->AddLineToHeader( makeStringCompatX1( text, aUseX1CompatibilityMode ) );
}
 
 
void BuildPlotFileName( wxFileName* aFilename, const wxString& aOutputDir,
 const wxString& aSuffix, const wxString& aExtension )
{
 // aFilename contains the base filename only (without path and extension)
 // when calling this function.
 // It is expected to be a valid filename (this is usually the board filename)
 aFilename->SetPath( aOutputDir );
 
 // Set the file extension
 aFilename->SetExt( aExtension );
 
 // remove leading and trailing spaces if any from the suffix, if
 // something survives add it to the name;
 // also the suffix can contain some not allowed chars in filename (/ \ . : and some others),
 // so change them to underscore
 // Remember it can be called from a python script, so the illegal chars
 // have to be filtered here.
 wxString suffix = aSuffix;
 suffix.Trim( true );
 suffix.Trim( false );
 
 wxString badchars = wxFileName::GetForbiddenChars(wxPATH_DOS);
 badchars.Append( "%." );
 
 for( unsigned ii = 0; ii < badchars.Len(); ii++ )
 suffix.Replace( badchars[ii], wxT("_") );
 
 if( !suffix.IsEmpty() )
 aFilename->SetName( aFilename->GetName() + wxT( "-" ) + suffix );
}
 
 
PLOT_CONTROLLER::PLOT_CONTROLLER( BOARD* aBoard )
{
 m_plotter = nullptr;
 m_board = aBoard;
 m_plotLayer = UNDEFINED_LAYER;
}
 
 
PLOT_CONTROLLER::~PLOT_CONTROLLER()
{
 ClosePlot();
}
 
 
/*
 * IMPORTANT: the locale during plots *MUST* be kept as C/POSIX using a LOCALE_IO object on the
 * stack. This even when opening/closing the plotfile, as some drivers do I/O even then.
 */
void PLOT_CONTROLLER::ClosePlot()
{
 LOCALE_IO toggle;
 
 if( m_plotter )
 {
 m_plotter->EndPlot();
 
 delete m_plotter->RenderSettings();
 delete m_plotter;
 
 m_plotter = nullptr;
 }
}
 
 
bool PLOT_CONTROLLER::OpenPlotfile( const wxString& aSuffix, PLOT_FORMAT aFormat,
 const wxString& aSheetName, const wxString& aSheetPath )
{
 LOCALE_IO toggle;
 
 // Save the current format: sadly some plot routines depends on this but the main reason
 // is that the StartPlot method uses it to dispatch the plotter creation
 GetPlotOptions().SetFormat( aFormat );
 
 // Ensure that the previous plot is closed
 ClosePlot();
 
 // Now compute the full filename for the output and start the plot (after ensuring the
 // output directory is OK).
 
 std::function<bool( wxString* )> textResolver =
 [&]( wxString* token ) -> bool
 {
 // Handles m_board->GetTitleBlock() *and* m_board->GetProject()
 return m_board->ResolveTextVar( token, 0 );
 };
 
 wxString outputDirName = GetPlotOptions().GetOutputDirectory();
 outputDirName = ExpandTextVars( outputDirName, &textResolver );
 outputDirName = ExpandEnvVarSubstitutions( outputDirName, nullptr );
 
 wxFileName outputDir = wxFileName::DirName( outputDirName );
 wxString boardFilename = m_board->GetFileName();
 PCB_LAYER_ID layer = ToLAYER_ID( GetLayer() );
 wxString layerName = m_board->GetLayerName( layer );
 
 if( EnsureFileDirectoryExists( &outputDir, boardFilename ) )
 {
 // outputDir contains now the full path of plot files
 m_plotFile = boardFilename;
 m_plotFile.SetPath( outputDir.GetPath() );
 wxString fileExt = GetDefaultPlotExtension( aFormat );
 
 // Gerber format *can* use layer-specific file extensions (this is no longer best
 // practice as the official file ext is now .gbr).
 if( GetPlotOptions().GetFormat() == PLOT_FORMAT::GERBER
 && GetPlotOptions().GetUseGerberProtelExtensions() )
 {
 fileExt = GetGerberProtelExtension( GetLayer() );
 }
 
 // Build plot filenames from the board name and layer names:
 BuildPlotFileName( &m_plotFile, outputDir.GetPath(), aSuffix, fileExt );
 
 m_plotter = StartPlotBoard( m_board, &GetPlotOptions(), layer, layerName,
 m_plotFile.GetFullPath(), aSheetName, aSheetPath );
 }
 
 return ( m_plotter != nullptr );
}
 
 
bool PLOT_CONTROLLER::PlotLayer()
{
 LOCALE_IO toggle;
 
 // No plot open, nothing to do...
 if( !m_plotter )
 return false;
 
 // Fully delegated to the parent
 PlotOneBoardLayer( m_board, m_plotter, ToLAYER_ID( GetLayer() ), GetPlotOptions() );
 PlotInteractiveLayer( m_board, m_plotter, GetPlotOptions() );
 return true;
}
 
 
bool PLOT_CONTROLLER::PlotLayers( const LSEQ& aLayerSequence )
{
 LOCALE_IO toggle;
 
 // No plot open, nothing to do...
 if( !m_plotter )
 return false;
 
 // Fully delegated to the parent
 PlotBoardLayers( m_board, m_plotter, aLayerSequence, GetPlotOptions() );
 PlotInteractiveLayer( m_board, m_plotter, GetPlotOptions() );
 return true;
}
 
 
void PLOT_CONTROLLER::SetColorMode( bool aColorMode )
{
 if( !m_plotter )
 return;
 
 m_plotter->SetColorMode( aColorMode );
}
 
 
bool PLOT_CONTROLLER::GetColorMode()
{
 if( !m_plotter )
 return false;
 
 return m_plotter->GetColorMode();
}