/* * This program source code file is part of KiCad, a free EDA CAD application. * * Copyright (C) 2007-2016 Jean-Pierre Charras jp.charras at wanadoo.fr * Copyright (C) 1992-2016 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 #include #include #include #include #include #include #include #include #include /* Read a gerber file, RS274D, RS274X or RS274X2 format. */ bool GERBVIEW_FRAME::Read_GERBER_File( const wxString& GERBER_FullFileName ) { wxString msg; int layer = GetActiveLayer(); GERBER_FILE_IMAGE_LIST* images = GetImagesList(); GERBER_FILE_IMAGE* gerber = GetGbrImage( layer ); if( gerber != nullptr ) { Erase_Current_DrawLayer( false ); } // use an unique ptr while we load to free on exception properly std::unique_ptr gerber_uptr = std::make_unique( layer ); // Read the gerber file. The image will be added only if it can be read // to avoid broken data. bool success = gerber_uptr->LoadGerberFile( GERBER_FullFileName ); if( !success ) { gerber_uptr.reset(); msg.Printf( _( "File '%s' not found" ), GERBER_FullFileName ); ShowInfoBarError( msg ); return false; } gerber = gerber_uptr.release(); wxASSERT( gerber != nullptr ); images->AddGbrImage( gerber, layer ); // Display errors list if( gerber->GetMessages().size() > 0 ) { HTML_MESSAGE_BOX dlg( this, _( "Errors" ) ); dlg.ListSet( gerber->GetMessages() ); dlg.ShowModal(); } /* if the gerber file has items using D codes but missing D codes definitions, * it can be a deprecated RS274D file (i.e. without any aperture information), * or has missing definitions, * warn the user: */ if( gerber->GetItemsCount() && gerber->m_Has_MissingDCode ) { if( !gerber->m_Has_DCode ) msg = _("Warning: this file has no D-Code definition\n" "Therefore the size of some items is undefined"); else msg = _("Warning: this file has some missing D-Code definitions\n" "Therefore the size of some items is undefined"); wxMessageBox( msg ); } if( GetCanvas() ) { if( gerber->m_ImageNegative ) { // TODO: find a way to handle negative images // (maybe convert geometry into positives?) } for( GERBER_DRAW_ITEM* item : gerber->GetItems() ) GetCanvas()->GetView()->Add( (KIGFX::VIEW_ITEM*) item ); } return true; } /* * Original function derived from gerber_is_rs274x_p() of gerbv 2.7.0. * Copyright of the source file readgerb.cpp included below: */ /* gEDA - GNU Electronic Design Automation * This is a part of gerbv * * Copyright (C) 2000-2003 Stefan Petersen (spe@stacken.kth.se) * * $Id$ * * 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, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA */ bool GERBER_FILE_IMAGE::TestFileIsRS274( const wxString& aFullFileName ) { char* letter; bool foundADD = false; bool foundD0 = false; bool foundD2 = false; bool foundM0 = false; bool foundM2 = false; bool foundStar = false; bool foundX = false; bool foundY = false; FILE* file = wxFopen( aFullFileName, "rb" ); if( file == nullptr ) return false; FILE_LINE_READER gerberReader( aFullFileName ); try { while( true ) { if( gerberReader.ReadLine() == nullptr ) break; // Remove all whitespace from the beginning and end char* line = StrPurge( gerberReader.Line() ); // Skip empty lines if( *line == 0 ) continue; // Check that file is not binary (non-printing chars) for( size_t i = 0; i < strlen( line ); i++ ) { if( !isascii( line[i] ) ) return false; } if( strstr( line, "%ADD" ) ) foundADD = true; if( strstr( line, "D00" ) || strstr( line, "D0" ) ) foundD0 = true; if( strstr( line, "D02" ) || strstr( line, "D2" ) ) foundD2 = true; if( strstr( line, "M00" ) || strstr( line, "M0" ) ) foundM0 = true; if( strstr( line, "M02" ) || strstr( line, "M2" ) ) foundM2 = true; if( strstr( line, "*" ) ) foundStar = true; /* look for X or Y */ if( ( letter = strstr( line, "X" ) ) != nullptr ) { if( isdigit( letter[1] ) ) foundX = true; } if( ( letter = strstr( line, "Y" ) ) != nullptr ) { if( isdigit( letter[1] ) ) foundY = true; } } } catch( IO_ERROR& ) { return false; } // RS-274X if( ( foundD0 || foundD2 || foundM0 || foundM2 ) && foundADD && foundStar && ( foundX || foundY ) ) return true; // RS-274D. Could be folded into the expression above, but someday // we might want to test for them separately. else if( ( foundD0 || foundD2 || foundM0 || foundM2 ) && !foundADD && foundStar && ( foundX || foundY ) ) return true; return false; } // size of a single line of text from a gerber file. // warning: some files can have *very long* lines, so the buffer must be large. #define GERBER_BUFZ 1000000 // A large buffer to store one line static char lineBuffer[GERBER_BUFZ+1]; bool GERBER_FILE_IMAGE::LoadGerberFile( const wxString& aFullFileName ) { int G_command = 0; // command number for G commands like G04 int D_commande = 0; // command number for D commands like D02 char* text; ClearMessageList( ); ResetDefaultValues(); // Read the gerber file */ m_Current_File = wxFopen( aFullFileName, wxT( "rt" ) ); if( m_Current_File == nullptr ) return false; m_FileName = aFullFileName; LOCALE_IO toggleIo; wxString msg; while( true ) { if( fgets( lineBuffer, GERBER_BUFZ, m_Current_File ) == nullptr ) break; m_LineNum++; text = StrPurge( lineBuffer ); while( text && *text ) { switch( *text ) { case ' ': case '\r': case '\n': text++; break; case '*': // End command m_CommandState = END_BLOCK; text++; break; case 'M': // End file m_CommandState = CMD_IDLE; while( *text ) text++; break; case 'G': /* Line type Gxx : command */ G_command = CodeNumber( text ); Execute_G_Command( text, G_command ); break; case 'D': /* Line type Dxx : Tool selection (xx > 0) or * command if xx = 0..9 */ D_commande = CodeNumber( text ); Execute_DCODE_Command( text, D_commande ); break; case 'X': case 'Y': /* Move or draw command */ m_CurrentPos = ReadXYCoord( text ); if( *text == '*' ) // command like X12550Y19250* { Execute_DCODE_Command( text, m_Last_Pen_Command ); } break; case 'I': case 'J': /* Auxiliary Move command */ m_IJPos = ReadIJCoord( text ); if( *text == '*' ) // command like X35142Y15945J504* { Execute_DCODE_Command( text, m_Last_Pen_Command ); } break; case '%': if( m_CommandState != ENTER_RS274X_CMD ) { m_CommandState = ENTER_RS274X_CMD; ReadRS274XCommand( lineBuffer, GERBER_BUFZ, text ); } else //Error { AddMessageToList( wxT( "Expected RS274X Command" ) ); m_CommandState = CMD_IDLE; text++; } break; default: msg.Printf( wxT( "Unexpected char 0x%2.2X" ), *text ); AddMessageToList( msg ); text++; break; } } } fclose( m_Current_File ); m_InUse = true; return true; }