process.cpp

/**************
FILE          : process.cpp
***************
PROJECT       : SaX2 - library interface
              :
AUTHOR        : Marcus Schäfer <ms@suse.de>
              :
BELONGS TO    : SaX2 - SuSE advanced X11 configuration 
              : 
              :
DESCRIPTION   : native C++ class library to access SaX2
              : functionality. Easy to use interface for
              : //.../
              : - importing/exporting X11 configurations
              : - modifying/creating X11 configurations 
              : ---
              :
              :
STATUS        : Status: Development
**************/
#include "process.h"

namespace SaX {
//====================================
// Constructor...
//------------------------------------
SaXProcess::SaXProcess ( void ) {
        // .../
        // ----
        mProc = new SaXProcessCall ();
}

//====================================
// start...
//------------------------------------
void SaXProcess::start ( QList<const char*> args, int prog ) {
        // .../
        // ----
        switch (prog) {
                case SAX_ISAX:
                        mProc -> addArgument ( ISAX );
                break;
                case SAX_SYSP:
                        mProc -> addArgument ( SYSP );
                break;
                case SAX_PROF:
                        mProc -> addArgument ( PROF );
                break;
                case SAX_META:
                        mProc -> addArgument ( META );
                break;
                default:
                        mProc -> addArgument ( ISAX );
                break;
        }
        const char* it;
        foreach (it,args) {
                mProc->addArgument ( it );
        }
        if ( ! mProc -> start() ) {
                excProcessFailed();
                qError (errorString(),EXC_PROCESSFAILED);
        }
        switch (prog) {
                case SAX_ISAX:
                        storeData();
                break;
                case SAX_SYSP:
                        storeDataSysp();
                break;
                case SAX_PROF:
                        storeData();
                break;
                case SAX_META:
                        storeData();
                break;
                default:
                        storeData();
                break;
        }
}

//====================================
// start...
//------------------------------------
void SaXProcess::start ( int fileID ) {
        // .../
        // ----
        switch (fileID) {
                case CDB_CARDMODULES:
                        storeDataSYS (fileID);
                break;
                case CDB_TABLETMODULES:
                        storeDataSYS (fileID);
                break;
                default:
                        storeDataCDB (fileID);
                break;
        }
}

//====================================
// storeDataCDB...
//------------------------------------
void SaXProcess::storeDataCDB (int fileID) {
        // .../
        // ----
        QString file;
        switch (fileID) {
                case CDB_CARDS:
                        file = CDBCARDS;
                break;
                case CDB_MONITORS:
                        file = CDBMONITORS;
                break;
                case CDB_PENS:
                        file = CDBPENS;
                break;
                case CDB_PADS:
                        file = CDBPADS;
                break;
                case CDB_POINTERS:
                        file = CDBPOINTERS;
                break;
                case CDB_TABLETS:
                        file = CDBTABLETS;
                break;
                case CDB_TOUCHERS:
                        file = CDBTOUCHERS;
                break;
                default:
                        excCDBFileFailed ();
                        qError (errorString(),EXC_CDBFILEFAILED);
                break;
        }
        //====================================
        // search all entries for file
        //------------------------------------
        DIR* CDBDir = 0;
        struct dirent* entry = 0;
        CDBDir = opendir (CDBDIR);
        QList<QString> fileList;
        if (! CDBDir) {
                excFileOpenFailed ( errno );
                qError (errorString(),EXC_FILEOPENFAILED);
                return;
        }
        while (1) {
                entry = readdir (CDBDir);
                if (! entry) {
                        break;
                }
                QString* updateFile = new QString();
                QTextOStream (updateFile) << CDBDIR << entry->d_name;
                if (*updateFile == file) {
                        continue;
                }
                if ((updateFile->contains(file)) && (entry->d_type != DT_DIR)) {
                        fileList.append (*updateFile);
                }
        }
        closedir (CDBDir);
        fileList.append (file);
        QString it;

        //====================================
        // read in file list
        //------------------------------------
        foreach (it,fileList) {
                QFile* handle = new QFile (it.ascii());
                if (! handle -> open(IO_ReadOnly)) {
                        excFileOpenFailed ( errno );
                        qError (errorString(),EXC_FILEOPENFAILED);
                        return;
                }
                char line[MAX_LINE_LENGTH];
                QString group,key,val;
                while ((handle->readLine (line,MAX_LINE_LENGTH)) != 0) {
                        QString string_line(line);
                        string_line.truncate(string_line.length()-1);
                        if ((string_line[0] == '#') || (string_line.isEmpty())) {
                                if (handle->atEnd()) {
                                        break;
                                }
                                continue;
                        }
                        int bp = string_line.find('{');
                        if (bp >= 0) {
                                QStringList tokens = QStringList::split ( ":", string_line );
                                QString vendor = tokens.first();
                                QString name   = tokens.last();
                                name.truncate(
                                        name.find('{')
                                );
                                name   = name.stripWhiteSpace();
                                vendor = vendor.stripWhiteSpace();
                                group = vendor+":"+name;
                        } else {
                                bp = string_line.find('}');
                                if (bp >= 0) {
                                        continue;
                                }
                                QStringList tokens = QStringList::split ( "=", string_line );
                                key = tokens.first();
                                val = tokens.last();
                                val = val.stripWhiteSpace();
                                key = key.stripWhiteSpace();
                                // ... /
                                // CDB keys and ISAX keys are not the same,
                                // check this and adapt to ISAX keys
                                // ---
                                if (key == "Hsync") {
                                        key = "HorizSync";
                                }
                                if (key == "Vsync") {
                                        key = "VertRefresh";
                                }
                                if (key == "Modeline") {
                                        key = "SpecialModeline";
                                }
                                addGroup (group,key,val);
                        }
                        if (handle->atEnd()) {
                                break;
                        }
                }
                handle -> close();
        }
}

//====================================
// storeDataSYS...
//------------------------------------
void SaXProcess::storeDataSYS (int fileID) {
        // .../
        // ----
        QString file;
        switch (fileID) {
                case CDB_CARDMODULES:
                        file = CDBCARDMODULES;
                break;
                case CDB_TABLETMODULES:
                        file = CDBTABLETMODULES;
                break;
                default:
                        excCDBFileFailed ();
                        qError (errorString(),EXC_CDBFILEFAILED);
                break;
        }
        QFile* handle = new QFile (file);
        if (! handle -> open(IO_ReadOnly)) {
                excFileOpenFailed ( errno );
                qError (errorString(),EXC_FILEOPENFAILED);
                return;
        }
        char line[MAX_LINE_LENGTH];
        QString group,key,val;
        while ((handle->readLine (line,MAX_LINE_LENGTH)) != 0) {
                QString string_line(line);
                string_line.truncate(string_line.length()-1);
                if ((string_line[0] == '#') || (string_line.isEmpty())) {
                        if (handle->atEnd()) {
                                break;
                        }
                        continue;
                }
                QStringList tokens = QStringList::split ( "=", string_line );
                group  = tokens.first();
                if (group.contains("Format:(")) {
                        continue;
                }
                tokens = QStringList::split ( " ", tokens.last() );
                for (QStringList::Iterator it=tokens.begin(); it!=tokens.end();++ it) {
                        QString value (*it);
                        QStringList tokens = QStringList::split ( ":", value );
                        key = tokens.first();                   
                        val = tokens.last();
                        addGroup (group,key,val);
                }
                if (handle->atEnd()) {
                        break;
                }
        }
        handle -> close();
}

//====================================
// storeDataSysp...
//------------------------------------
void SaXProcess::storeDataSysp (void) {
        // .../
        // ----
        QString vesa,vesa2,fbboot;
        QList<QString> data = mProc->readStdout();
        QString line;
        foreach (line,data) {
                int id = 0;
//              QString line (in);
                if (line.isEmpty()) {
                        continue;
                }
                QStringList tokens = QStringList::split ( "=>", line );
                QString idstr = tokens.first();
                QString data  = tokens.last();
                QStringList datalist = QStringList::split ( ":", data );
                QString key = datalist.first();
                QString val = datalist.last();
                QRegExp idExp ("(\\d+)");
                int rpos = idExp.search (idstr,0);
                if (rpos >= 0) {
                        id = idExp.cap().toInt();
                }
                addID (id);
                val = val.stripWhiteSpace();
                key = key.stripWhiteSpace();
                //printf ("+++ %s %s\n",key.toLatin1().data(),val.toLatin1().data());
                if (key == "Vesa") {
                        vesa.append (val);
                        vesa.append (",");
                } else
                if (key == "Vesa[2]") {
                        vesa2.append (val);
                        vesa2.append (",");
                } else
                if (key == "FBBoot") {
                        fbboot.append (val);
                        fbboot.append (",");
                } else
                if ((! key.isEmpty()) && (! val.isEmpty())) {
                        setItem (key,val);
                }
        }
        if (! vesa.isEmpty()) {
                vesa.replace (QRegExp(",$"),"");
                setItem ("Vesa",vesa);
        }
        if (! vesa2.isEmpty()) {
                vesa2.replace (QRegExp(",$"),"");
                setItem ("Vesa[2]",vesa2);
        }
        if (! fbboot.isEmpty()) {
                fbboot.replace (QRegExp(",$"),"");
                setItem ("FBBoot",fbboot);
        }
}

//====================================
// storeData...
//------------------------------------
void SaXProcess::storeData (void) {
        // .../
        // ----
        QList<QString> data = mProc->readStdout();
        QString line;
        foreach (line,data) {
//              QString line (*in.current());
                QString cnr;
                QString key;
                QString val;
                int index = 0;
                QStringList tokens = QStringList::split ( ":", line );
                for ( QStringList::Iterator
                        in = tokens.begin(); in != tokens.end(); ++in
                ) {
                        QString item (*in);
                        item = item.stripWhiteSpace();
                        switch (index) {
                        case 0:
                                cnr = item;
                        break;
                        case 1:
                                key = item;
                        break;
                        case 2:
                                val = item;
                        break;
                        default:
                                bool isNumber = false;
                                if ((key == "Screen") || (key == "Relative")) {
                                        QRegExp idExp ("^(\\d+)$");
                                        if (idExp.search (val,0) >= 0) {
                                                isNumber=true;
                                        }
                                }
                                if (
                                        (((key == "Screen") || (key == "Relative")) &&
                                         (!isNumber)) || (key == "Modes")||(key == "Virtual")
                                ) {
                                        key = key+":"+val;
                                        val = item;
                                } else {
                                        val = val+":"+item;
                                }
                        break;
                        }
                        index++;
                }
                if (val.isEmpty()) {
                        continue;
                }
                addID   (cnr.toInt());
                setItem (key,val);
        }
}
} // end namespace