GFitsTableStrCol.cpp
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/***************************************************************************
* GFitsTableStrCol.cpp - FITS table string column class *
* ----------------------------------------------------------------------- *
* copyright : (C) 2008 by Jurgen Knodlseder *
* ----------------------------------------------------------------------- *
* *
* 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. *
* *
* ----------------------------------------------------------------------- *
***************************************************************************/
/* __ Includes ___________________________________________________________ */
#include "GException.hpp"
#include "GFitsTableStrCol.hpp"
#include <iostream> // cout, cerr
/* __ Namespaces _________________________________________________________ */
/* __ Method name definitions ____________________________________________ */
#define G_STRING "GFitsTableStrCol::string(const int&, const int&)"
#define G_REAL "GFitsTableStrCol::real(const int&, const int&)"
#define G_INTEGER "GFitsTableStrCol::integer(const int&, const int&)"
#define G_PTR_STRING "GFitsTableStrCol::ptr_string()"
#define G_PTR_FLOAT "GFitsTableStrCol::ptr_float()"
#define G_PTR_DOUBLE "GFitsTableStrCol::ptr_double()"
#define G_PTR_SHORT "GFitsTableStrCol::ptr_short()"
#define G_PTR_LONG "GFitsTableStrCol::ptr_long()"
#define G_PTR_INT "GFitsTableStrCol::ptr_int()"
#define G_LOAD "GFitsTableStrCol::load()"
/* __ Macros _____________________________________________________________ */
/* __ Coding definitions _________________________________________________ */
/* __ Debug definitions __________________________________________________ */
/*==========================================================================
= =
= GFitsTableStrCol constructors/destructors =
= =
==========================================================================*/
/***************************************************************************
* Constructor *
* ----------------------------------------------------------------------- *
***************************************************************************/
GFitsTableStrCol::GFitsTableStrCol() : GFitsTableCol()
{
// Initialise class members for clean destruction
init_members();
// Return
return;
}
/***************************************************************************
* Copy constructor *
* ----------------------------------------------------------------------- *
***************************************************************************/
GFitsTableStrCol::GFitsTableStrCol(const GFitsTableStrCol& column) : GFitsTableCol(column)
{
// Initialise class members for clean destruction
init_members();
// Copy members
copy_members(column);
// Return
return;
}
/***************************************************************************
* Destructor *
* ----------------------------------------------------------------------- *
***************************************************************************/
GFitsTableStrCol::~GFitsTableStrCol()
{
// Free members
free_members();
// Return
return;
}
/*==========================================================================
= =
= GFitsTableStrCol operators =
= =
==========================================================================*/
/***************************************************************************
* Assignment operator *
* ----------------------------------------------------------------------- *
***************************************************************************/
GFitsTableStrCol& GFitsTableStrCol::operator= (const GFitsTableStrCol& column)
{
// Execute only if object is not identical
if (this != &column) {
// Copy base class members
this->GFitsTableCol::operator=(column);
// Free members
free_members();
// Initialise private members for clean destruction
init_members();
// Copy members
copy_members(column);
} // endif: object was not identical
// Return this object
return *this;
}
/*==========================================================================
= =
= GFitsTableStrCol public methods =
= =
==========================================================================*/
/***************************************************************************
* Get string value *
* ----------------------------------------------------------------------- *
***************************************************************************/
std::string GFitsTableStrCol::string(const int& row, const int& col)
{
// Make sure that data are loaded
if (m_data == NULL)
load();
// Check row value
if (row < 0 || row >= m_length)
throw GException::out_of_range(G_STRING, row, 0, m_length-1);
// Check col value
if (col < 0 || col >= m_num_subs)
throw GException::out_of_range(G_STRING, col, 0, m_num_subs-1);
// Get string index
int inx = row * m_num_subs + col;
// Assign C string to C++ std::string
std::string value;
value.assign(m_data[inx]);
// Return value
return value;
}
/***************************************************************************
* Get real value *
* ----------------------------------------------------------------------- *
***************************************************************************/
double GFitsTableStrCol::real(const int& row, const int& col)
{
// Make sure that data are loaded
if (m_data == NULL)
load();
// Check row value
if (row < 0 || row >= m_length)
throw GException::out_of_range(G_STRING, row, 0, m_length-1);
// Check col value
if (col < 0 || col >= m_num_subs)
throw GException::out_of_range(G_STRING, col, 0, m_num_subs-1);
// Get string index
int inx = row * m_num_subs + col;
// Assign C string to double
double value = atof(m_data[inx]);
// Return value
return value;
}
/***************************************************************************
* Get int value *
* ----------------------------------------------------------------------- *
***************************************************************************/
int GFitsTableStrCol::integer(const int& row, const int& col)
{
// Make sure that data are loaded
if (m_data == NULL)
load();
// Check row value
if (row < 0 || row >= m_length)
throw GException::out_of_range(G_STRING, row, 0, m_length-1);
// Check col value
if (col < 0 || col >= m_num_subs)
throw GException::out_of_range(G_STRING, col, 0, m_num_subs-1);
// Get string index
int inx = row * m_num_subs + col;
// Assign C string to int
int value = atoi(m_data[inx]);
// Return value
return value;
}
/***************************************************************************
* Access to invalid data pointers *
* ----------------------------------------------------------------------- *
***************************************************************************/
float* GFitsTableStrCol::ptr_float(void)
{
throw GException::fits_invalid_type(G_PTR_FLOAT, "No <float> pointer allowed to <string> array");
}
double* GFitsTableStrCol::ptr_double(void)
{
throw GException::fits_invalid_type(G_PTR_FLOAT, "No <double> pointer allowed to <string> array");
}
short* GFitsTableStrCol::ptr_short(void)
{
throw GException::fits_invalid_type(G_PTR_SHORT, "No <short> pointer allowed to <string> array");
}
long* GFitsTableStrCol::ptr_long(void)
{
throw GException::fits_invalid_type(G_PTR_LONG, "No <long> pointer allowed to <string> array");
}
int* GFitsTableStrCol::ptr_int(void)
{
throw GException::fits_invalid_type(G_PTR_INT, "No <int> pointer allowed to <string> array");
}
/***************************************************************************
* Set NULL string *
* ----------------------------------------------------------------------- *
***************************************************************************/
void GFitsTableStrCol::set_nullstr(const std::string string)
{
// If NULL string is empty then reset the NULL string
if (string.empty()) {
if (m_nulstr != NULL) delete [] m_nulstr;
m_nulstr = NULL;
}
// ... otherwise copy string into NULL string
else {
if (m_nulstr != NULL) delete [] m_nulstr;
m_nulstr = new char[m_width+1];
strncpy(m_nulstr, string.c_str(), m_width);
}
// Re-load column
// NOTE: THIS WILL LEAD TO A LOSS OF MODIFICATIONS; ISSUE SAVE BEFORE !!!
if (m_data != NULL) {
//save();
load();
}
// Return
return;
}
/*==========================================================================
= =
= GFitsTableStrCol private methods =
= =
==========================================================================*/
/***************************************************************************
* Initialise class members *
* ----------------------------------------------------------------------- *
***************************************************************************/
void GFitsTableStrCol::init_members(void)
{
// Initialise members
m_type = __TSTRING;
m_size = 0;
m_num_subs = 0;
m_data = NULL;
m_nulstr = NULL;
m_anynul = 0;
// Return
return;
}
/***************************************************************************
* Copy class members *
* ----------------------------------------------------------------------- *
* Note: it is assumed that no memory has been allocated so far for the *
* actual instance. *
***************************************************************************/
void GFitsTableStrCol::copy_members(const GFitsTableStrCol& column)
{
// Copy string size
m_size = column.m_size;
m_num_subs = column.m_num_subs;
m_anynul = column.m_anynul;
// Copy column data
if (column.m_data != NULL && m_size > 0) {
m_data = new char*[m_size];
for (int i = 0; i < m_size; ++i) {
if (column.m_data[i] != NULL) {
m_data[i] = new char[m_width+1];
memcpy(m_data[i], column.m_data[i], m_width);
}
else
m_data[i] = NULL;
}
}
// Copy nulstr data
if (column.m_nulstr != NULL) {
m_nulstr = new char[m_width+1];
strncpy(m_nulstr, column.m_nulstr, m_width);
}
// Return
return;
}
/***************************************************************************
* Delete class members *
* ----------------------------------------------------------------------- *
***************************************************************************/
void GFitsTableStrCol::free_members(void)
{
// Free memory
if (m_data != NULL) {
for (int i = 0; i < m_size; ++i) {
if (m_data[i] != NULL) delete [] m_data[i];
}
delete [] m_data;
}
// Mark memory as freed
m_data = NULL;
// Return
return;
}
/***************************************************************************
* Load column data *
* ----------------------------------------------------------------------- *
* The string column is read in a list of character buffers. The length of *
* each character buffer is 'm_width+1' to hold the final '\0'. The number *
* of strings is given by the number of rows of the table times the number *
* of substrings. *
***************************************************************************/
void GFitsTableStrCol::load(void)
{
// Calculate number of substrings
if (m_repeat == 1) // ASCII tables
m_num_subs = 1;
else // Binary tables
m_num_subs = m_repeat / m_width;
// Calculate total number of strings
m_size = m_num_subs * m_length;
// Free memory
free_members();
// Reset number of NULLs
m_anynul = 0;
// Load data only if some are available
if (m_size > 0) {
// Allocate memory
m_data = new char*[m_size];
for (int i = 0; i < m_size; ++i)
m_data[i] = new char[m_width+1];
// Load column data
int status = 0;
status = __ffmahd(&m_fitsfile, (m_fitsfile.HDUposition)+1, NULL, &status);
status = __ffgcvs(&m_fitsfile, m_colnum, 1, 1, m_size, m_nulstr, m_data,
&m_anynul, &status);
if (status != 0)
throw GException::fits_error(G_LOAD, status);
} // endif: data were available
// Return
return;
}
/*==========================================================================
= =
= GFitsTableStrCol friends =
= =
==========================================================================*/
/*==========================================================================
= =
= Other functions used by GFitsTableStrCol =
= =
==========================================================================*/