431 lines
12 KiB
C++
431 lines
12 KiB
C++
/**
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* @file export_to_pcbnew.cpp
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* @brief Export the layers to Pcbnew.
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*/
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#include <vector>
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#include <fctsys.h>
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#include <common.h>
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// #include <class_drawpanel.h>
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#include <confirm.h>
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#include <macros.h>
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#include <kicad_string.h>
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#include <gestfich.h>
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#include <trigo.h>
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#include <gerbview.h>
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#include <class_gerber_draw_item.h>
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#include <select_layers_to_pcb.h>
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#include <build_version.h>
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#include <wildcards_and_files_ext.h>
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#define TO_PCB_UNIT( x ) KiROUND( x / IU_PER_DECIMILS )
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#define TRACK_TYPE 0
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#define VIA_TYPE 1
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/* A helper class to export a Gerber set of files to Pcbnew
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*/
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class GBR_TO_PCB_EXPORTER
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{
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private:
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GERBVIEW_FRAME* m_gerbview_frame; // the main gerber frame
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wxString m_pcb_file_name; // BOARD file to write to
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FILE* m_fp; // the board file
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int m_pcbCopperLayersCount;
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std::vector<wxPoint> m_vias_coordinates; // list of already generated vias,
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// used to export only once a via
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// having a given coordinate
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public:
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GBR_TO_PCB_EXPORTER( GERBVIEW_FRAME* aFrame, const wxString& aFileName );
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~GBR_TO_PCB_EXPORTER();
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/**
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* Function ExportPcb
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* saves a board from a set of Gerber images.
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*/
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bool ExportPcb( int* LayerLookUpTable );
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private:
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/**
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* Function export_non_copper_item
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* write a non copper line or arc to the board file.
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* @param aGbrItem = the Gerber item (line, arc) to export
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* @param aLayer = the technical layer to use
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*/
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void export_non_copper_item( GERBER_DRAW_ITEM* aGbrItem, int aLayer );
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/**
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* Function export_copper_item
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* write a track or via) to the board file.
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* @param aGbrItem = the Gerber item (line, arc, flashed) to export
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* @param aLayer = the copper layer to use
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*/
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void export_copper_item( GERBER_DRAW_ITEM* aGbrItem, int aLayer );
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/**
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* Function export_flashed_copper_item
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* write a via to the board file (always uses a via through).
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* @param aGbrItem = the flashed Gerber item to export
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*/
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void export_flashed_copper_item( GERBER_DRAW_ITEM* aGbrItem );
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/**
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* Function export_segline_copper_item
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* write a track (not via) to the board file.
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* @param aGbrItem = the Gerber item (line only) to export
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* @param aLayer = the copper layer to use
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*/
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void export_segline_copper_item( GERBER_DRAW_ITEM* aGbrItem, int aLayer );
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/**
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* Function export_segarc_copper_item
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* write a set of tracks (arcs are approximated by track segments)
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* to the board file.
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* @param aGbrItem = the Gerber item (arc only) to export
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* @param aLayer = the copper layer to use
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*/
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void export_segarc_copper_item( GERBER_DRAW_ITEM* aGbrItem, int aLayer );
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/**
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* function writePcbLineItem
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* basic write function to write a DRAWSEGMENT item or a TRACK/VIA item
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* to the board file
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*/
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void writePcbLineItem( int aShape, int aType, wxPoint& aStart, wxPoint& aEnd,
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int aWidth, int aLayer, int aDrill, int aAngle = 0 );
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/**
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* function writePcbHeader
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* Write a very basic header to the board file
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*/
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void writePcbHeader();
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};
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GBR_TO_PCB_EXPORTER::GBR_TO_PCB_EXPORTER( GERBVIEW_FRAME* aFrame, const wxString& aFileName )
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{
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m_gerbview_frame = aFrame;
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m_pcb_file_name = aFileName;
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}
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GBR_TO_PCB_EXPORTER::~GBR_TO_PCB_EXPORTER()
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{
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}
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/* Export data in Pcbnew format
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* remember Pcbnew uses a Y reversed axis, so we must negate all Y coordinates
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*/
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void GERBVIEW_FRAME::ExportDataInPcbnewFormat( wxCommandEvent& event )
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{
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int layercount = 0;
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// Count the Gerber layers which are actually currently used
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for( int ii = 0; ii < GERBVIEW_LAYER_COUNT; ii++ )
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{
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if( g_GERBER_List[ii] != NULL )
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layercount++;
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}
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if( layercount == 0 )
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{
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DisplayInfoMessage( this,
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_( "None of the Gerber layers contain any data" ) );
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return;
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}
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wxString fileName;
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wxString path = wxGetCwd();;
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wxFileDialog filedlg( this, _( "Board file name:" ),
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path, fileName, LegacyPcbFileWildcard,
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wxFD_OPEN );
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if( filedlg.ShowModal() == wxID_CANCEL )
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return;
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fileName = filedlg.GetPath();
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/* Install a dialog frame to choose the mapping
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* between gerber layers and Pcbnew layers
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*/
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LAYERS_MAP_DIALOG* layerdlg = new LAYERS_MAP_DIALOG( this );
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int ok = layerdlg->ShowModal();
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layerdlg->Destroy();
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if( ok != wxID_OK )
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return;
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if( wxFileExists( fileName ) )
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{
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if( !IsOK( this, _( "Ok to change the existing file ?" ) ) )
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return;
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}
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GBR_TO_PCB_EXPORTER gbr_exporter( this, fileName );
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gbr_exporter.ExportPcb( layerdlg->GetLayersLookUpTable() );
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}
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bool GBR_TO_PCB_EXPORTER::ExportPcb( int* LayerLookUpTable )
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{
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m_fp = wxFopen( m_pcb_file_name, wxT( "wt" ) );
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if( m_fp == NULL )
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{
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wxString msg;
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msg.Printf( _( "Cannot create file <%s>" ), GetChars( m_pcb_file_name ) );
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DisplayError( m_gerbview_frame, msg );
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return false;
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}
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m_pcbCopperLayersCount = LayerLookUpTable[GERBVIEW_LAYER_COUNT];
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writePcbHeader();
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// create an image of gerber data
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// First: non copper layers:
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GERBER_DRAW_ITEM* gerb_item = m_gerbview_frame->GetItemsList();
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for( ; gerb_item; gerb_item = gerb_item->Next() )
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{
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int layer = gerb_item->GetLayer();
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int pcb_layer_number = LayerLookUpTable[layer];
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if( pcb_layer_number < 0 || pcb_layer_number > LAST_NO_COPPER_LAYER )
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continue;
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if( pcb_layer_number > LAST_COPPER_LAYER )
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export_non_copper_item( gerb_item, pcb_layer_number );
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}
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// Copper layers
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fprintf( m_fp, "$TRACK\n" );
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gerb_item = m_gerbview_frame->GetItemsList();
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for( ; gerb_item; gerb_item = gerb_item->Next() )
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{
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int layer = gerb_item->GetLayer();
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int pcb_layer_number = LayerLookUpTable[layer];
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if( pcb_layer_number < 0 || pcb_layer_number > LAST_COPPER_LAYER )
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continue;
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else
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export_copper_item( gerb_item, pcb_layer_number );
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}
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fprintf( m_fp, "$EndTRACK\n" );
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fprintf( m_fp, "$EndBOARD\n" );
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fclose( m_fp );
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m_fp = NULL;
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return true;
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}
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void GBR_TO_PCB_EXPORTER::export_non_copper_item( GERBER_DRAW_ITEM* aGbrItem, int aLayer )
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{
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#define SEG_SHAPE 0
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#define ARC_SHAPE 2
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int shape = SEG_SHAPE;
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int angle = 0;
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wxPoint seg_start, seg_end;
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seg_start = aGbrItem->m_Start;
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seg_end = aGbrItem->m_End;
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if( aGbrItem->m_Shape == GBR_ARC )
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{
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double a = atan2( (double) ( aGbrItem->m_Start.y - aGbrItem->m_ArcCentre.y),
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(double) ( aGbrItem->m_Start.x - aGbrItem->m_ArcCentre.x ) );
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double b = atan2( (double) ( aGbrItem->m_End.y - aGbrItem->m_ArcCentre.y ),
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(double) ( aGbrItem->m_End.x - aGbrItem->m_ArcCentre.x ) );
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shape = ARC_SHAPE;
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angle = KiROUND( (a - b) / M_PI * 1800.0 );
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seg_start = aGbrItem->m_ArcCentre;
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if( angle < 0 )
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{
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NEGATE( angle );
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seg_end = aGbrItem->m_Start;
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}
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}
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// Reverse Y axis:
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NEGATE( seg_start.y );
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NEGATE( seg_end.y );
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writePcbLineItem( shape, 0, seg_start, seg_end, aGbrItem->m_Size.x, aLayer, -2, angle );
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}
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void GBR_TO_PCB_EXPORTER::export_copper_item( GERBER_DRAW_ITEM* aGbrItem, int aLayer )
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{
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switch( aGbrItem->m_Shape )
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{
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case GBR_SPOT_CIRCLE:
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case GBR_SPOT_RECT:
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case GBR_SPOT_OVAL:
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// replace spots with vias when possible
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export_flashed_copper_item( aGbrItem );
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break;
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case GBR_ARC:
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export_segarc_copper_item( aGbrItem, aLayer );
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break;
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default:
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export_segline_copper_item( aGbrItem, aLayer );
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break;
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}
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}
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void GBR_TO_PCB_EXPORTER::export_segline_copper_item( GERBER_DRAW_ITEM* aGbrItem, int aLayer )
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{
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wxPoint seg_start, seg_end;
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seg_start = aGbrItem->m_Start;
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seg_end = aGbrItem->m_End;
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// Reverse Y axis:
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NEGATE( seg_start.y );
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NEGATE( seg_end.y );
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writePcbLineItem( 0, TRACK_TYPE, seg_start, seg_end, aGbrItem->m_Size.x, aLayer, -1 );
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}
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void GBR_TO_PCB_EXPORTER::export_segarc_copper_item( GERBER_DRAW_ITEM* aGbrItem, int aLayer )
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{
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double a = atan2( (double) ( aGbrItem->m_Start.y - aGbrItem->m_ArcCentre.y ),
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(double) ( aGbrItem->m_Start.x - aGbrItem->m_ArcCentre.x ) );
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double b = atan2( (double) ( aGbrItem->m_End.y - aGbrItem->m_ArcCentre.y ),
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(double) ( aGbrItem->m_End.x - aGbrItem->m_ArcCentre.x ) );
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wxPoint start = aGbrItem->m_Start;
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wxPoint end = aGbrItem->m_End;
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/* Because Pcbnew does not know arcs in tracks,
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* approximate arc by segments (SEG_COUNT__CIRCLE segment per 360 deg)
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* The arc is drawn in an anticlockwise direction from the start point to the end point.
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*/
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#define SEG_COUNT_CIRCLE 16
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#define DELTA_ANGLE 2 * M_PI / SEG_COUNT_CIRCLE
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// calculate the number of segments from a to b.
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// we want CNT_PER_360 segments fo a circle
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if( a > b )
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b += 2 * M_PI;
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wxPoint curr_start = start;
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wxPoint seg_start, seg_end;
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int ii = 1;
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for( double rot = a; rot < (b - DELTA_ANGLE); rot += DELTA_ANGLE, ii++ )
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{
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seg_start = curr_start;
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wxPoint curr_end = start;
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RotatePoint( &curr_end, aGbrItem->m_ArcCentre, -(int) (DELTA_ANGLE * ii * 1800 / M_PI) );
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seg_end = curr_end;
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// Reverse Y axis:
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NEGATE( seg_start.y );
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NEGATE( seg_end.y );
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writePcbLineItem( 0, TRACK_TYPE, seg_start, seg_end, aGbrItem->m_Size.x, aLayer, -1 );
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curr_start = curr_end;
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}
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if( end != curr_start )
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{
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seg_start = curr_start;
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seg_end = end;
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// Reverse Y axis:
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NEGATE( seg_start.y );
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NEGATE( seg_end.y );
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writePcbLineItem( 0, TRACK_TYPE, seg_start, seg_end, aGbrItem->m_Size.x, aLayer, -1 );
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}
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}
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/*
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* creates a via from a flashed gerber item.
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* Flashed items are usually pads or vias, so we try to export all of them
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* using vias
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*/
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void GBR_TO_PCB_EXPORTER::export_flashed_copper_item( GERBER_DRAW_ITEM* aGbrItem )
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{
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// First, explore already created vias, before creating a new via
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for( unsigned ii = 0; ii < m_vias_coordinates.size(); ii++ )
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{
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if( m_vias_coordinates[ii] == aGbrItem->m_Start ) // Already created
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return;
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}
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m_vias_coordinates.push_back( aGbrItem->m_Start );
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wxPoint via_pos;
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int width;
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via_pos = aGbrItem->m_Start;
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width = (aGbrItem->m_Size.x + aGbrItem->m_Size.y) / 2;
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// Reverse Y axis:
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NEGATE( via_pos.y );
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// Layers are 0 to 15 (Cu/Cmp) = 0x0F
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#define IS_VIA 1
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#define SHAPE_VIA_THROUGH 3
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writePcbLineItem( SHAPE_VIA_THROUGH, IS_VIA, via_pos, via_pos, width, 0x0F, -1 );
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}
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void GBR_TO_PCB_EXPORTER::writePcbHeader()
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{
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fprintf( m_fp, "PCBNEW-BOARD Version 1 date %s\n\n# Created by GerbView %s\n\n",
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TO_UTF8( DateAndTime() ), TO_UTF8( GetBuildVersion() ) );
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fprintf( m_fp, "$GENERAL\n" );
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fprintf( m_fp, "encoding utf-8\n" );
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fprintf( m_fp, "Units deci-mils\n" );
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// Write copper layer count
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fprintf( m_fp, "LayerCount %d\n", m_pcbCopperLayersCount );
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// Write enabled layer mask:
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int lmask = ALL_NO_CU_LAYERS | EXTERNAL_LAYERS;
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for( int ii = 0; ii < m_pcbCopperLayersCount - 2; ii++ )
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lmask |= 2 << ii;
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fprintf( m_fp, "EnabledLayers %08X\n", lmask );
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fprintf( m_fp, "$EndGENERAL\n\n" );
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// Creates void setup
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fprintf( m_fp, "$SETUP\n" );
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fprintf( m_fp, "$EndSETUP\n\n" );
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}
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void GBR_TO_PCB_EXPORTER::writePcbLineItem( int aShape, int aType, wxPoint& aStart, wxPoint& aEnd,
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int aWidth, int aLayer, int aDrill, int aAngle )
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{
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if( aDrill <= -2 )
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fprintf( m_fp, "$DRAWSEGMENT\n" );
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fprintf( m_fp, "Po %d %d %d %d %d %d\n", aShape,
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TO_PCB_UNIT( aStart.x ), TO_PCB_UNIT( aStart.y ),
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TO_PCB_UNIT( aEnd.x ), TO_PCB_UNIT( aEnd.y ),
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TO_PCB_UNIT( aWidth ) );
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fprintf( m_fp, "De %d %d %d %lX %X",
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aLayer, aType, aAngle, 0l, 0 );
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if( aDrill > -2 )
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fprintf( m_fp, " %d", aDrill );
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fprintf( m_fp, "\n" );
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if( aDrill <= -2 )
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fprintf( m_fp, "$EndDRAWSEGMENT\n" );
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}
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