491 lines
17 KiB
C++
491 lines
17 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2018 Jean-Pierre Charras, jp.charras at wanadoo.fr
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* Copyright (C) 2018 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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/**
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* @file gbr_metadata.cpp
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* @brief helper functions to handle the gerber metadata in files,
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* related to the netlist info and aperture attribute.
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*/
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#include <fctsys.h>
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#include <gbr_metadata.h>
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wxString GbrMakeCreationDateAttributeString( GBR_NC_STRING_FORMAT aFormat )
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{
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// creates the CreationDate attribute:
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// The attribute value must conform to the full version of the ISO 8601
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// date and time format, including time and time zone. Note that this is
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// the date the Gerber file was effectively created,
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// not the time the project of PCB was started
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wxDateTime date( wxDateTime::GetTimeNow() );
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// Date format: see http://www.cplusplus.com/reference/ctime/strftime
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wxString timezone_offset; // ISO 8601 offset from UTC in timezone
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timezone_offset = date.Format( "%z" ); // Extract the time zone offset
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// The time zone offset format is +mm or +hhmm (or -mm or -hhmm)
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// (mm = number of minutes, hh = number of hours. 1h00mn is returned as +0100)
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// we want +(or -) hh:mm
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if( timezone_offset.Len() > 3 ) // format +hhmm or -hhmm found
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// Add separator between hours and minutes
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timezone_offset.insert( 3, ":", 1 );
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wxString msg;
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switch( aFormat )
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{
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case GBR_NC_STRING_FORMAT_X2:
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msg.Printf( "%%TF.CreationDate,%s%s*%%", date.FormatISOCombined(), timezone_offset );
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break;
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case GBR_NC_STRING_FORMAT_X1:
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msg.Printf( "G04 #@! TF.CreationDate,%s%s", date.FormatISOCombined(), timezone_offset );
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break;
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case GBR_NC_STRING_FORMAT_GBRJOB:
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msg.Printf( "\"CreationDate\": \"%s%s\"", date.FormatISOCombined(), timezone_offset );
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break;
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case GBR_NC_STRING_FORMAT_NCDRILL:
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msg.Printf( "; #@! TF.CreationDate,%s%s", date.FormatISOCombined(), timezone_offset );
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break;
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}
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return msg;
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}
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wxString GbrMakeProjectGUIDfromString( wxString& aText )
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{
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/* Gerber GUID format should be RFC4122 Version 1 or 4.
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* See en.wikipedia.org/wiki/Universally_unique_identifier
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* The format is:
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* xxxxxxxx-xxxx-Mxxx-Nxxx-xxxxxxxxxxxx
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* with
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* x = hexDigit lower/upper case
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* and
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* M = '1' or '4' (UUID version: 1 (basic) or 4 (random)) (we use 4: UUID random)
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* and
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* N = '8' or '9' or 'A|a' or 'B|b' : UUID variant 1: 2 MSB bits have meaning) (we use N = 9)
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* N = 1000 or 1001 or 1010 or 1011 : 10xx means Variant 1 (Variant2: 110x and 111x are reserved)
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*/
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wxString guid;
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// Build a 32 digits GUID from the board name:
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// guid has 32 digits, so add chars in name to be sure we can build a 32 digits guid
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// (i.e. from a 16 char string name)
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// In fact only 30 digits are used, and 2 UID id
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wxString bname = aText;
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int cnt = 16 - bname.Len();
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if( cnt > 0 )
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bname.Append( 'X', cnt );
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int chr_idx = 0;
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// Output the 8 first hex digits:
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for( unsigned ii = 0; ii < 4; ii++ )
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{
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int cc = int( bname[chr_idx++] ) & 0xFF;
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guid << wxString::Format( "%2.2x", cc );
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}
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// Output the 4 next hex digits:
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guid << '-';
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for( unsigned ii = 0; ii < 2; ii++ )
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{
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int cc = int( bname[chr_idx++] ) & 0xFF;
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guid << wxString::Format( "%2.2x", cc );
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}
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// Output the 4 next hex digits (UUID version and 3 digits):
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guid << "-4"; // first digit: UUID version 4 (M = 4)
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{
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int cc = int( bname[chr_idx++] ) << 4 & 0xFF0;
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cc += int( bname[chr_idx] ) >> 4 & 0x0F;
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guid << wxString::Format( "%3.3x", cc );
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}
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// Output the 4 next hex digits (UUID variant and 3 digits):
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guid << "-9"; // first digit: UUID variant 1 (N = 9)
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{
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int cc = (int( bname[chr_idx++] ) & 0x0F) << 8;
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cc += int( bname[chr_idx++] ) & 0xFF;
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guid << wxString::Format( "%3.3x", cc );
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}
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// Output the 12 last hex digits:
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guid << '-';
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for( unsigned ii = 0; ii < 6; ii++ )
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{
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int cc = int( bname[chr_idx++] ) & 0xFF;
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guid << wxString::Format( "%2.2x", cc );
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}
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return guid;
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}
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std::string GBR_APERTURE_METADATA::FormatAttribute( GBR_APERTURE_ATTRIB aAttribute,
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bool aUseX1StructuredComment )
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{
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std::string attribute_string;
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// generate a string to print a Gerber Aperture attribute
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switch( aAttribute )
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{
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case GBR_APERTURE_ATTRIB_END: // Dummy value (aAttribute must be < GBR_APERTURE_ATTRIB_END)
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case GBR_APERTURE_ATTRIB_NONE: // idle command: do nothing
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break;
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case GBR_APERTURE_ATTRIB_ETCHEDCMP: // print info associated to an item
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// which connects 2 different nets
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// (Net tees, microwave component)
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attribute_string = "TA.AperFunction,EtchedComponent";
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break;
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case GBR_APERTURE_ATTRIB_CONDUCTOR: // print info associated to a track
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attribute_string = "TA.AperFunction,Conductor";
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break;
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case GBR_APERTURE_ATTRIB_CUTOUT: // print info associated to a outline
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attribute_string = "TA.AperFunction,CutOut";
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break;
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case GBR_APERTURE_ATTRIB_VIAPAD: // print info associated to a flashed via
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attribute_string = "TA.AperFunction,ViaPad";
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break;
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case GBR_APERTURE_ATTRIB_NONCONDUCTOR: // print info associated to a item on a copper layer
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// which is not a track (for instance a text)
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attribute_string = "TA.AperFunction,NonConductor";
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break;
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case GBR_APERTURE_ATTRIB_COMPONENTPAD: // print info associated to a flashed
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// through hole component on outer layer
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attribute_string = "TA.AperFunction,ComponentPad";
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break;
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case GBR_APERTURE_ATTRIB_SMDPAD_SMDEF: // print info associated to a flashed for SMD pad.
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// with solder mask defined from the copper shape
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// Excluded BGA pads which have their own type
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attribute_string = "TA.AperFunction,SMDPad,SMDef";
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break;
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case GBR_APERTURE_ATTRIB_SMDPAD_CUDEF: // print info associated to a flashed SMD pad with
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// a solder mask defined by the solder mask
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attribute_string = "TA.AperFunction,SMDPad,CuDef";
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break;
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case GBR_APERTURE_ATTRIB_BGAPAD_SMDEF: // print info associated to flashed BGA pads with
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// a solder mask defined by the copper shape
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attribute_string = "TA.AperFunction,BGAPad,SMDef";
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break;
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case GBR_APERTURE_ATTRIB_BGAPAD_CUDEF: // print info associated to a flashed BGA pad with
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// a solder mask defined by the solder mask
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attribute_string = "TA.AperFunction,BGAPad,CuDef";
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break;
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case GBR_APERTURE_ATTRIB_CONNECTORPAD: // print info associated to a flashed edge connector pad (outer layers)
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attribute_string = "TA.AperFunction,ConnectorPad";
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break;
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case GBR_APERTURE_ATTRIB_WASHERPAD: // print info associated to flashed mechanical pads (NPTH)
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attribute_string = "TA.AperFunction,WasherPad";
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break;
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case GBR_APERTURE_ATTRIB_HEATSINKPAD: // print info associated to a flashed heat sink pad
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// (typically for SMDs)
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attribute_string = "TA.AperFunction,HeatsinkPad";
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break;
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case GBR_APERTURE_ATTRIB_VIADRILL: // print info associated to a via hole in drill files
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attribute_string = "TA.AperFunction,ViaDrill";
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break;
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case GBR_APERTURE_ATTRIB_COMPONENTDRILL: // print info associated to a component
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// round hole in drill files
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attribute_string = "TA.AperFunction,ComponentDrill";
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break;
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case GBR_APERTURE_ATTRIB_SLOTDRILL: // print info associated to a oblong hole in drill files
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attribute_string = "TA.AperFunction,Slot";
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break;
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}
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std::string full_attribute_string;
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wxString eol_string;
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if( !attribute_string.empty() )
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{
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if( aUseX1StructuredComment )
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{
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full_attribute_string = "G04 #@! ";
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eol_string = "*\n";
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}
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else
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{
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full_attribute_string = "%";
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eol_string = "*%\n";
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}
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}
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full_attribute_string += attribute_string + eol_string;
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return full_attribute_string;
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}
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wxString FormatStringFromGerber( const wxString& aString )
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{
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// make the inverse conversion of formatStringToGerber()
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// It converts a "normalized" gerber string and convert it to a 16 bits sequence unicode
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// and return a wxString (unicode 16) from the gerber string
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wxString txt;
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for( unsigned ii = 0; ii < aString.Length(); ++ii )
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{
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unsigned code = aString[ii];
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if( code == '\\' )
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{
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// Convert 4 hexadecimal digits to a 16 bit unicode
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// (Gerber allows only 4 hexadecimal digits)
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long value = 0;
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for( int jj = 0; jj < 4; jj++ )
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{
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value <<= 4;
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code = aString[++ii];
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// Very basic conversion, but it expects a valid gerber file
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int hexa = (code <= '9' ? code - '0' : code - 'A' + 10) & 0xF;
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value += hexa;
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}
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txt.Append( wxChar( value ) );
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}
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else
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txt.Append( aString[ii] );
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}
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return txt;
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}
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std::string formatStringToGerber( const wxString& aString )
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{
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/* format string means convert any code > 0x7F and unautorized code to a hexadecimal
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* 16 bits sequence unicode
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* unautorized codes are ',' '*' '%' '\'
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*/
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std::string txt;
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txt.reserve( aString.Length() );
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for( unsigned ii = 0; ii < aString.Length(); ++ii )
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{
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unsigned code = aString[ii];
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bool convert = false;
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switch( code )
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{
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case '\\':
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case '%':
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case '*':
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case ',':
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convert = true;
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break;
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default:
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break;
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}
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if( convert || code > 0x7F )
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{
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txt += '\\';
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// Convert code to 4 hexadecimal digit
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// (Gerber allows only 4 hexadecimal digit)
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char hexa[32];
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sprintf( hexa,"%4.4X", code & 0xFFFF);
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txt += hexa;
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}
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else
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txt += char( code );
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}
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return txt;
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}
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// Netname and Pan num fields cannot be empty in Gerber files
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// Normalized names must be used, if any
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#define NO_NET_NAME wxT( "N/C" ) // net name of not connected pads (one pad net) (normalized)
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#define NO_PAD_NAME wxT( "" ) // pad name of pads without pad name/number (not normalized)
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bool FormatNetAttribute( std::string& aPrintedText, std::string& aLastNetAttributes,
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GBR_NETLIST_METADATA* aData, bool& aClearPreviousAttributes,
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bool aUseX1StructuredComment )
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{
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aClearPreviousAttributes = false;
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wxString prepend_string;
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wxString eol_string;
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if( aUseX1StructuredComment )
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{
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prepend_string = "G04 #@! ";
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eol_string = "*\n";
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}
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else
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{
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prepend_string = "%";
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eol_string = "*%\n";
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}
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// print a Gerber net attribute record.
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// it is added to the object attributes dictionnary
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// On file, only modified or new attributes are printed.
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if( aData == NULL )
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return false;
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std::string pad_attribute_string;
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std::string net_attribute_string;
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std::string cmp_attribute_string;
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if( aData->m_NetAttribType == GBR_NETLIST_METADATA::GBR_NETINFO_UNSPECIFIED )
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return false; // idle command: do nothing
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if( ( aData->m_NetAttribType & GBR_NETLIST_METADATA::GBR_NETINFO_PAD ) )
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{
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// print info associated to a flashed pad (cmpref, pad name)
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// example: %TO.P,R5,3*%
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pad_attribute_string = prepend_string + "TO.P,";
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pad_attribute_string += formatStringToGerber( aData->m_Cmpref ) + ",";
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if( aData->m_Padname.IsEmpty() )
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// Happens for "mechanical" or never connected pads
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pad_attribute_string += formatStringToGerber( NO_PAD_NAME );
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else
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pad_attribute_string += formatStringToGerber( aData->m_Padname );
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pad_attribute_string += eol_string;
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}
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if( ( aData->m_NetAttribType & GBR_NETLIST_METADATA::GBR_NETINFO_NET ) )
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{
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// print info associated to a net
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// example: %TO.N,Clk3*%
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net_attribute_string = prepend_string + "TO.N,";
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if( aData->m_Netname.IsEmpty() )
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{
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if( aData->m_NotInNet )
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{
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// Happens for not connectable pads: mechanical pads
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// and pads with no padname/num
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// In this case the net name must be left empty
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}
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else
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{
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// Happens for not connected pads: use a normalized
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// dummy name
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net_attribute_string += formatStringToGerber( NO_NET_NAME );
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}
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}
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else
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net_attribute_string += formatStringToGerber( aData->m_Netname );
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net_attribute_string += eol_string;
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}
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if( ( aData->m_NetAttribType & GBR_NETLIST_METADATA::GBR_NETINFO_CMP ) &&
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!( aData->m_NetAttribType & GBR_NETLIST_METADATA::GBR_NETINFO_PAD ) )
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{
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// print info associated to a footprint
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// example: %TO.C,R2*%
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// Because GBR_NETINFO_PAD option already contains this info, it is not
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// created here for a GBR_NETINFO_PAD attribute
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cmp_attribute_string = prepend_string + "TO.C,";
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cmp_attribute_string += formatStringToGerber( aData->m_Cmpref ) + eol_string;
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}
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// the full list of requested attributes:
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std::string full_attribute_string = pad_attribute_string + net_attribute_string
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+ cmp_attribute_string;
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// the short list of requested attributes
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// (only modified or new attributes are stored here):
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std::string short_attribute_string;
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if( aLastNetAttributes != full_attribute_string )
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{
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// first, remove no more existing attributes.
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// Because in Kicad the full attribute list is evaluated for each object,
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// the entire dictionnary is cleared
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bool clearDict = false;
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if( aLastNetAttributes.find( "TO.P," ) != std::string::npos )
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{
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if( pad_attribute_string.empty() ) // No more this attribute
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clearDict = true;
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else if( aLastNetAttributes.find( pad_attribute_string )
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== std::string::npos ) // This attribute has changed
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short_attribute_string += pad_attribute_string;
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}
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else // New attribute
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short_attribute_string += pad_attribute_string;
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if( aLastNetAttributes.find( "TO.N," ) != std::string::npos )
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{
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if( net_attribute_string.empty() ) // No more this attribute
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clearDict = true;
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else if( aLastNetAttributes.find( net_attribute_string )
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== std::string::npos ) // This attribute has changed
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short_attribute_string += net_attribute_string;
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}
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else // New attribute
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short_attribute_string += net_attribute_string;
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if( aLastNetAttributes.find( "TO.C," ) != std::string::npos )
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{
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if( cmp_attribute_string.empty() ) // No more this attribute
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clearDict = true;
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else if( aLastNetAttributes.find( cmp_attribute_string )
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== std::string::npos ) // This attribute has changed
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short_attribute_string += cmp_attribute_string;
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}
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else // New attribute
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short_attribute_string += cmp_attribute_string;
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aClearPreviousAttributes = clearDict;
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aLastNetAttributes = full_attribute_string;
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if( clearDict )
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aPrintedText = full_attribute_string;
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else
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aPrintedText = short_attribute_string;
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}
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return true;
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}
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