/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project .
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License , v . 2 . 0 . If a copy of the MPL was not distributed with this
* file , You can obtain one at http : //mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice :
*
* Licensed to the Apache Software Foundation ( ASF ) under one or more
* contributor license agreements . See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership . The ASF licenses this file to you under the Apache
* License , Version 2 . 0 ( the " License " ) ; you may not use this file
* except in compliance with the License . You may obtain a copy of
* the License at http : //www.apache.org/licenses/LICENSE-2.0 .
*/
#include "MacabHeader.hxx"
#include "MacabRecord.hxx"
#include "macabutilities.hxx"
#include <math.h>
#include <com/sun/star/sdbc/DataType.hpp>
#include <connectivity/dbconversion.hxx>
using namespace connectivity::macab;
using namespace com::sun::star::sdbc;
using namespace com::sun::star::util;
using namespace ::dbtools;
MacabHeader::MacabHeader(const sal_Int32 _size, macabfield **_fields)
{
sal_Int32 i;
size = _size;
fields = std::make_unique<macabfield *[]>(size);
for (i = 0 ; i < size; i++)
{
if (_fields[i] == nullptr)
{
fields[i] = nullptr;
}
else
{
/* The constructor duplicates the macabfields it gets because they
* are either deleted later or used for other purposes .
*/
fields[i] = new macabfield;
fields[i]->type = _fields[i]->type;
fields[i]->value = _fields[i]->value;
if (fields[i]->value)
CFRetain(fields[i]->value);
}
}
}
MacabHeader::MacabHeader()
{
size = 0 ;
fields = nullptr;
}
MacabHeader::~MacabHeader()
{
if (fields != nullptr)
{
sal_Int32 i;
for (i = 0 ; i < size; i++)
{
if (fields[i] != nullptr && fields[i]->value != nullptr)
{
CFRelease(fields[i]->value);
fields[i]->value = nullptr;
}
}
}
}
void MacabHeader::operator += (const MacabHeader *r)
{
/* Add one MacabHeader to another. Anything not already in the header is
* added to the end of it .
*/
sal_Int32 rSize = r->getSize();
if (rSize != 0 ) // If the new header does actually have fields
{
/* If our header is currently empty, just copy all of the fields from
* the new header to this one .
*/
if (size == 0 )
{
sal_Int32 i;
size = rSize;
fields = std::make_unique<macabfield *[]>(size);
for (i = 0 ; i < size; i++)
{
fields[i] = r->copy(i);
}
}
/* Otherwise, only add the duplicates. We do this with a two-pass
* approach . First , find out how many fields to add , then reallocate
* the size of the fields array and add the old ones at the end .
* ( More precisely , we create a _ new_ fields array with the new length
* allocated to it , then get all of the fields from the current
* fields array to it , then copy the non - duplicates from the new
* header to the end . )
*/
else
{
sal_Int32 i;
sal_Int32 numToAdd = 0 , numAdded = 0 ;
macabfield **newFields;
for ( i = 0 ; i < rSize; i++)
{
if (!contains(r->get(i)))
{
numToAdd++;
}
}
newFields = new macabfield *[size+numToAdd];
for (i = 0 ; i < size; i++)
{
newFields[i] = copy(i);
}
for ( i = 0 ; i < rSize; i++)
{
if (!contains(r->get(i)))
{
newFields[size+numAdded] = r->copy(i);
numAdded++;
if (numAdded == numToAdd)
break ;
}
}
releaseFields();
size += numAdded;
fields.reset(newFields);
}
}
}
OUString MacabHeader::getString(const sal_Int32 i) const
{
OUString nRet;
if (i < size)
{
if (fields[i] == nullptr || fields[i]->value == nullptr || CFGetTypeID(fields[i]->value) != CFStringGetTypeID())
return OUString();
try
{
nRet = CFStringToOUString(static_cast <CFStringRef>(fields[i]->value));
}
catch (...){ }
}
return nRet;
}
void MacabHeader::sortRecord()
{
sortRecord(0 ,size);
}
macabfield **MacabHeader::sortRecord(const sal_Int32 _start, const sal_Int32 _length)
{
/* Sort using mergesort. Because it uses mergesort, it is recursive and
* not in place ( so it creates a new array at every step of the
* recursion ) , so if you prefer to use a different sort , please feel
* free to implement it .
*/
macabfield** sorted = new macabfield *[_length];
if (_length <= 2 )
{
if (_length == 2 )
{
if (compareFields(fields[_start], fields[_start+1 ]) > 0 )
{
sorted[0 ] = get(_start+1 );
sorted[1 ] = get(_start);
}
else
{
sorted[0 ] = get(_start);
sorted[1 ] = get(_start+1 );
}
}
else if (_length == 1 )
{
sorted[0 ] = get(_start);
}
}
else
{
sal_Int32 halfLength = floor(_length/2 );
sal_Int32 fp = 0 , lp = 0 ;
sal_Int32 i;
macabfield **firstHalf = sortRecord(_start, halfLength);
macabfield **lastHalf = sortRecord(_start+halfLength, _length-halfLength);
for (i = 0 ; i < _length; i++)
{
if (compareFields(firstHalf[fp],lastHalf[lp]) < 0 )
{
sorted[i] = firstHalf[fp++];
if (fp == halfLength)
{
for ( i++; i < _length; i++)
{
sorted[i] = lastHalf[lp++];
}
break ;
}
}
else
{
sorted[i] = lastHalf[lp++];
if (lp == _length - halfLength)
{
for ( i++; i < _length; i++)
{
sorted[i] = firstHalf[fp++];
}
break ;
}
}
}
if (_length == size)
{
fields.reset(sorted);
}
delete firstHalf;
delete lastHalf;
}
return sorted;
}
sal_Int32 MacabHeader::compareFields(const macabfield *_field1, const macabfield *_field2)
{
/* Comparing two fields in a MacabHeader is different than comparing two
* fields in a MacabRecord . It starts in the same way ( if one of the two
* fields is NULL , it belongs after the other , so it is considered
* " greater " ) . But , then , all headers are CFStrings , no matter what
* type they claim to be ( since they actually hold the expected type for
* the records with that header ) . That being said , all we have to do is
* the built - in CFStringCompare .
*/
if (_field1 == _field2)
return 0 ;
if (_field1 == nullptr)
return 1 ;
if (_field2 == nullptr)
return -1 ;
CFComparisonResult result = CFStringCompare(
static_cast <CFStringRef>(_field1->value),
static_cast <CFStringRef>(_field2->value),
0 ); // 0 = no options (like ignore case)
return static_cast <sal_Int32>(result);
}
sal_Int32 MacabHeader::getColumnNumber(std::u16string_view s) const
{
sal_Int32 i;
for (i = 0 ; i < size; i++)
{
if (getString(i) == s)
break ;
}
if (i == size)
i = -1 ;
return i;
}
MacabHeader *MacabHeader::begin()
{
return this ;
}
MacabHeader::iterator::iterator ()
{
}
MacabHeader::iterator& MacabHeader::iterator::operator = (MacabHeader *_record)
{
id = 0 ;
record = _record;
return *this ;
}
void MacabHeader::iterator::operator ++ ()
{
id++;
}
bool MacabHeader::iterator::operator != (const sal_Int32 i) const
{
return (id != i);
}
bool MacabHeader::iterator::operator == (const sal_Int32 i) const
{
return (id == i);
}
macabfield *MacabHeader::iterator::operator * () const
{
return record->get(id);
}
sal_Int32 MacabHeader::end() const
{
return size;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
Messung V0.5 in Prozent C=97 H=81 G=89
¤ Dauer der Verarbeitung: 0.12 Sekunden
(vorverarbeitet am 2026-10-02)
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