CDigitizerModule.cpp

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/*
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*/
static const char* Copyright = "(C) Copyright Ron Fox 2002, All rights reserved";

#include "CDigitizerModule.h"                                   
#include <assert.h>
#include "CIntConfigParam.h"
#include "CIntArrayParam.h"
#include "CBoolConfigParam.h"
#include "CStringConfigParam.h"
#include "CStringArrayparam.h"

CDigitizerModule::CDigitizerModule (const string& rString,
                    CTCLInterpreter& rInterp)
   : m_sName(rString),
     CTCLProcessor(rString.c_str(), &rInterp)
{
  Register();
}
CDigitizerModule::~CDigitizerModule ( )  //Destructor - Delete dynamic objects
{
  DeleteParameters();
}



// Functions for class CDigitizerModule

int 
CDigitizerModule::operator()(CTCLInterpreter& rInterp, 
                            CTCLResult& rResult, 
                            int nArgs, char** pArgs)  
{ 
  int nStatus = TCL_OK;
  assert(m_sName == string(*pArgs));
  nArgs--;
  pArgs++;
  
  if(nArgs) {
    // Match the command keyword against the ones we understand:
    // config, cget or help
    //
    string sCommand(*pArgs);
    pArgs++; 
    nArgs--;
    if(sCommand == string("config")) {
      nStatus = Configure(rInterp, rResult, nArgs, pArgs);
    }
    else if(sCommand == string("cget")) {
      nStatus = ListConfiguration(rInterp, rResult, nArgs, pArgs);
    }
    else if(sCommand == string("help")) {
      rResult = Usage();
    }
    else {                    // NO command match.
      rResult = m_sName;
      rResult += " unrecognized subcommand \n";
      rResult += Usage();
      nStatus  = TCL_ERROR;
      
    }
  }
  else {
    rResult  = " Insufficient parameters:\n";
    rResult += Usage();
    nStatus  = TCL_ERROR;
  }

  return nStatus;
}  

int 
CDigitizerModule::Configure(CTCLInterpreter& rInterp, 
                            CTCLResult& rResult, 
                            int nArgs, char** pArgs)  
{
  int nStatus = TCL_OK;
  while (nArgs) {
    if(nArgs < 2) {
      rResult += " Keyword without parameters.";
      return TCL_ERROR;
    }
    string   Keyword(*pArgs);     // Extract the command
    string   Parameter(pArgs[1]);   // and its keywords.
    nArgs -= 2;
    pArgs += 2;
    
    ParameterIterator pParam = Find(Keyword);
    if(pParam != m_Configuration.end()) {
      CConfigurationParameter* p = *pParam;
      (*p)(rInterp, rResult, Parameter.c_str());
    }
    else {
      nStatus = TCL_ERROR;
      rResult += "Unrecognized config keyword/param pair\n";
      rResult += " Keyword: ";
      rResult += Keyword;
      rResult += " Parameter: ";
      rResult += Parameter;
      rResult += "\n";
    }
  }
  return nStatus;
}  

int 
CDigitizerModule::ListConfiguration(CTCLInterpreter& rInterp,
                                    CTCLResult& rResult, 
                                    int nArgs, char** pArgs)  
{ 
  int nStatus = TCL_OK;
  if(nArgs > 1) {
    rResult += " Too many parameters in cget\n";
    rResult += Usage();
    nStatus = TCL_ERROR;
  }
  else {
    string sPattern = "*";     // Assume no parameters.
    if(nArgs) {
      sPattern = *pArgs;
    }
    string listing = ListParameters(rInterp, sPattern);
    rResult        = listing;
  }
  return nStatus;
} 

string 
CDigitizerModule::Usage()  
{
  string help;
  help  = m_sName;
  help += " config ";
  help += ListKeywords();
  help += "\n";
  help += m_sName;
  help += " cget ?pattern?\n";
  help += m_sName;
  help += " help";
  
  return help;
}  

void 
CDigitizerModule::AddIntParam(const string& sParamName,
                              int nDefault)  
{ 
  CIntConfigParam* pNewParam = new CIntConfigParam(sParamName,
                                                   nDefault);
  m_Configuration.push_back(pNewParam);
}  

void 
CDigitizerModule::AddIntArrayParam(const string& rParamName, 
                                   int nArraySize,
                                   int nDefault)  
{ 
  CIntArrayParam* pNew = new CIntArrayParam(rParamName,
                                            nArraySize,
                                            nDefault);
  m_Configuration.push_back(pNew);
}  

void 
CDigitizerModule::AddBoolParam(const string& rName, 
                               bool fDefault)  
{ 
  CBoolConfigParam* pParam = new CBoolConfigParam(rName, 
                                                  fDefault);
  m_Configuration.push_back(pParam);
}

void
CDigitizerModule::DeleteParameters()
{
    // Kill off the bool parameters.
  
  ParameterIterator p = m_Configuration.begin();
    while (p != m_Configuration.end()) {
      CConfigurationParameter *pParam = *p;
      delete pParam;
      p++;
  }
}
CDigitizerModule::ParameterIterator
CDigitizerModule::Find(const string& rKeyword)
{
  ParameterIterator p = m_Configuration.begin();
  while(p != m_Configuration.end()) {
    CConfigurationParameter* pParam = *p;
    if(pParam->Match(rKeyword)) { 
      return p;
    }
    p++;
  }
  return m_Configuration.end();
}
string
CDigitizerModule::ListParameters(CTCLInterpreter& rInterp,
                               const string& rPattern)
{
  CTCLString result;
  ParameterIterator p = m_Configuration.begin();
  while(p != m_Configuration.end()) {
    if(Tcl_StringMatch( ((*p)->getSwitch().c_str()),
                       rPattern.c_str())) {
      result.StartSublist();
      result.AppendElement((*p)->getSwitch());
      result.AppendElement((*p)->getOptionString());
      result.EndSublist();
    }
    p++;
  }
  return string((const char*)result);
}
string
CDigitizerModule::ListKeywords()
{
  string result;
  ParameterIterator p = m_Configuration.begin();
  while(p != m_Configuration.end()) {
    result += (*p)->getSwitch();
    result += " ";
    result += (*p)->GetParameterFormat();
    result += " ";
    
    p++;
  }
  return result;
}

void
CDigitizerModule::AddStringParam(const string& rName)
{
  CStringConfigParam *p = new CStringConfigParam(rName);
  m_Configuration.push_back(p);

}
void
CDigitizerModule::AddStringArrayParam(const string& rName,
                                     int nArraySize)
{
  CStringArrayparam* p = new CStringArrayparam(rName, nArraySize);
  m_Configuration.push_back(p);
}

---