gparted/src/OperationDelete.cc

143 lines
4.8 KiB
C++

/* Copyright (C) 2004 Bart 'plors' Hakvoort
* Copyright (C) 2010 Curtis Gedak
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include "OperationDelete.h"
#include "Partition.h"
#include "PartitionVector.h"
namespace GParted
{
OperationDelete::OperationDelete( const Device & device, const Partition & partition_orig )
{
type = OPERATION_DELETE ;
this->device = device.get_copy_without_partitions();
this->partition_original = partition_orig.clone();
}
OperationDelete::~OperationDelete()
{
delete partition_original;
partition_original = nullptr;
}
Partition & OperationDelete::get_partition_new()
{
g_assert( false ); // Bug: OperationDelete class doesn't use partition_new
// Not reached. Return value to keep compiler quiet.
return *partition_new;
}
const Partition & OperationDelete::get_partition_new() const
{
g_assert( false ); // Bug: OperationDelete class doesn't use partition_new
// Not reached. Return value to keep compiler quiet.
return *partition_new;
}
void OperationDelete::apply_to_visual( PartitionVector & partitions )
{
g_assert(partition_original != nullptr); // Bug: Not initialised by constructor or reset later
int index_extended;
int index;
if ( partition_original->inside_extended )
{
index_extended = find_extended_partition( partitions );
if ( index_extended >= 0 )
{
index = find_index_original( partitions[ index_extended ] .logicals ) ;
if ( index >= 0 )
{
remove_original_and_adjacent_unallocated( partitions[index_extended].logicals, index );
insert_unallocated( partitions[index_extended].logicals,
partitions[index_extended].sector_start,
partitions[index_extended].sector_end,
device.sector_size,
true );
// If deleted partition was logical we have to decrease
// the partition numbers of the logicals with higher
// numbers by one (only if its a real partition)
if ( partition_original->status != STAT_NEW )
for ( unsigned int t = 0 ; t < partitions[index_extended].logicals .size() ; t++ )
if ( partitions[index_extended].logicals[t].partition_number >
partition_original->partition_number )
partitions[index_extended].logicals[t].Update_Number(
partitions[index_extended].logicals[t].partition_number -1 );
}
}
}
else
{
index = find_index_original( partitions ) ;
if ( index >= 0 )
{
remove_original_and_adjacent_unallocated( partitions, index ) ;
insert_unallocated( partitions, 0, device .length -1, device .sector_size, false ) ;
}
}
}
void OperationDelete::create_description()
{
g_assert(partition_original != nullptr); // Bug: Not initialised by constructor or reset later
if ( partition_original->type == TYPE_LOGICAL )
description = _("Logical Partition") ;
else
description = partition_original->get_path();
/*TO TRANSLATORS: looks like Delete /dev/hda2 (ntfs, 345 MiB) from /dev/hda */
description = Glib::ustring::compose( _("Delete %1 (%2, %3) from %4"),
description,
partition_original->get_filesystem_string(),
Utils::format_size( partition_original->get_sector_length(),
partition_original->sector_size ),
partition_original->device_path );
}
bool OperationDelete::merge_operations( const Operation & candidate )
{
return false; // Can't merge with an already deleted partition
}
void OperationDelete::remove_original_and_adjacent_unallocated( PartitionVector & partitions, int index_orig )
{
//remove unallocated space following the original partition
if ( index_orig +1 < static_cast<int>( partitions .size() ) &&
partitions[index_orig+1].type == TYPE_UNALLOCATED )
partitions .erase( partitions .begin() + index_orig +1 );
//remove unallocated space preceding the original partition and the original partition
if (index_orig-1 >= 0 && partitions[index_orig-1].type == TYPE_UNALLOCATED)
partitions .erase( partitions .begin() + --index_orig ) ;
//and finally remove the original partition
partitions .erase( partitions .begin() + index_orig ) ;
}
} //GParted