kicad/gerbview/job_file_reader.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2007-2019 Jean-Pierre Charras jp.charras at wanadoo.fr
* Copyright (C) 1992-2019 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
*/
/**
* @file job_file_reader.cpp
*/
#include <nlohmann/json.hpp>
#include <wx/filename.h>
#include <wildcards_and_files_ext.h>
#include <gerbview.h>
#include <richio.h>
#include <gerber_file_image.h>
#include <gerber_file_image_list.h>
#include <gerbview_frame.h>
#include <reporter.h>
#include <gbr_metadata.h>
#include <html_messagebox.h>
#include <view/view.h>
using json = nlohmann::json;
/**
* this class read and parse a Gerber job file to extract useful info
* for GerbView
*
* In a gerber job file, old (deprecated) format, data lines start by
* %TF. (usual Gerber X2 info)
* %TJ.B. (board info)
* %TJ.D. (design info)
* %TJ.L. (layers info)
* some others are not yet handled by Kicad
* M02* is the last line
* In a gerber job file, JSON format, first lines are
* {
* "Header":
* and the block ( a JSON array) containing the filename of files to load is
* "FilesAttributes":
* [
* {
* "Path": "interf_u-Composant.gbr",
* "FileFunction": "Copper,L1,Top",
* "FilePolarity": "Positive"
* },
* {
* "Path": "interf_u-In1.Cu.gbr",
* "FileFunction": "Copper,L2,Inr",
* "FilePolarity": "Positive"
* },
* ],
*/
class GERBER_JOBFILE_READER
{
public:
GERBER_JOBFILE_READER( const wxString& aFileName, REPORTER* aReporter )
{
m_filename = aFileName;
m_reporter = aReporter;
}
~GERBER_JOBFILE_READER() {}
bool ReadGerberJobFile(); /// read a .gbrjob file
wxArrayString& GetGerberFiles() { return m_GerberFiles; }
private:
REPORTER* m_reporter;
wxFileName m_filename;
wxArrayString m_GerberFiles; // List of gerber files in job
// Convert a JSON string, that uses escaped sequence of 4 hexdecimal digits
// to encode unicode chars when not ASCII7 codes
// json11 converts this sequence to UTF8 string
wxString formatStringFromJSON( const std::string& name );
};
bool GERBER_JOBFILE_READER::ReadGerberJobFile()
{
// Read the gerber file */
FILE* jobFile = wxFopen( m_filename.GetFullPath(), wxT( "rt" ) );
if( jobFile == nullptr )
return false;
LOCALE_IO toggleIo;
FILE_LINE_READER jobfileReader( jobFile, m_filename.GetFullPath() ); // Will close jobFile
wxString msg;
wxString data;
// detect the file format: old (deprecated) gerber format of official JSON format
bool json_format = false;
char* line = jobfileReader.ReadLine();
if( !line ) // end of file
return false;
data = line;
if( data.Contains( "{" ) )
json_format = true;
if( json_format )
{
while( ( line = jobfileReader.ReadLine() ) )
data << '\n' << line;
try
{
json js = json::parse( TO_UTF8( data ) );
for( json& entry : js["FilesAttributes"] )
{
std::string name = entry["Path"].get<std::string>();
m_GerberFiles.Add( formatStringFromJSON( name ) );
}
}
catch( ... )
{
return false;
}
}
else
{
if( m_reporter )
m_reporter->ReportTail( _( "This job file uses an outdated format. Please recreate it." ),
RPT_SEVERITY_WARNING );
return false;
}
return true;
}
wxString GERBER_JOBFILE_READER::formatStringFromJSON( const std::string& name )
{
// Convert a JSON string, that uses a escaped sequence of 4 hexdecimal digits
// to encode unicode chars
// Our json11 library returns in this case a UTF8 sequence. Just convert it to
// a wxString.
wxString wstr = FROM_UTF8( name.c_str() );
return wstr;
}
bool GERBVIEW_FRAME::LoadGerberJobFile( const wxString& aFullFileName )
{
wxFileName filename = aFullFileName;
wxString currentPath;
bool success = true;
if( !filename.IsOk() )
{
// Use the current working directory if the file name path does not exist.
if( filename.DirExists() )
currentPath = filename.GetPath();
else
currentPath = m_mruPath;
wxFileDialog dlg( this, _( "Open Gerber Job File" ),
currentPath,
filename.GetFullName(),
GerberJobFileWildcard(),
wxFD_OPEN | wxFD_FILE_MUST_EXIST | wxFD_CHANGE_DIR );
if( dlg.ShowModal() == wxID_CANCEL )
return false;
filename = dlg.GetPath();
currentPath = filename.GetPath();
m_mruPath = currentPath;
}
else
{
currentPath = filename.GetPath();
m_mruPath = currentPath;
}
wxString msg;
WX_STRING_REPORTER reporter( &msg );
if( filename.IsOk() )
{
GERBER_JOBFILE_READER gbjReader( filename.GetFullPath(), &reporter );
if( gbjReader.ReadGerberJobFile() )
{
// Update the list of recent drill files.
UpdateFileHistory( filename.GetFullPath(), &m_jobFileHistory );
Clear_DrawLayers( false );
ClearMsgPanel();
wxArrayString& gbrfiles = gbjReader.GetGerberFiles();
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success = LoadListOfGerberAndDrillFiles( currentPath, gbrfiles );
}
}
SortLayersByX2Attributes();
if( !msg.IsEmpty() )
{
wxSafeYield(); // Allows slice of time to redraw the screen
// to refresh widgets, before displaying messages
HTML_MESSAGE_BOX mbox( this, _( "Messages" ) );
mbox.ListSet( msg );
mbox.ShowModal();
}
return success;
}