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gparted/src/OperationResizeMove.cc

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/* Copyright (C) 2004 Bart 'plors' Hakvoort
* Copyright (C) 2008, 2009, 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 "OperationResizeMove.h"
#include "Partition.h"
#include "PartitionVector.h"
namespace GParted
{
OperationResizeMove::OperationResizeMove( const Device & device,
const Partition & partition_orig,
const Partition & partition_new )
{
type = OPERATION_RESIZE_MOVE ;
this->device = device.get_copy_without_partitions();
this->partition_original = partition_orig.clone();
this->partition_new = partition_new.clone();
}
OperationResizeMove::~OperationResizeMove()
{
delete partition_original;
delete partition_new;
partition_original = NULL;
partition_new = NULL;
}
void OperationResizeMove::apply_to_visual( PartitionVector & partitions )
{
g_assert( partition_original != NULL ); // Bug: Not initialised by constructor or reset later
if ( partition_original->type == TYPE_EXTENDED )
apply_extended_to_visual( partitions ) ;
else
apply_normal_to_visual( partitions ) ;
}
void OperationResizeMove::create_description()
{
g_assert( partition_original != NULL ); // Bug: Not initialised by constructor or reset later
g_assert( partition_new != NULL ); // Bug: Not initialised by constructor or reset later
//i'm not too happy with this, but i think it is the correct way from a i18n POV
enum Action
{
NONE = 0,
MOVE_RIGHT = 1,
MOVE_LEFT = 2,
GROW = 3,
SHRINK = 4,
MOVE_RIGHT_GROW = 5,
MOVE_RIGHT_SHRINK = 6,
MOVE_LEFT_GROW = 7,
MOVE_LEFT_SHRINK = 8
} ;
Action action = NONE ;
if ( partition_new->get_sector_length() > partition_original->get_sector_length() )
{
//Grow partition
action = GROW ;
if ( partition_new->sector_start > partition_original->sector_start )
action = MOVE_RIGHT_GROW ;
if ( partition_new->sector_start < partition_original->sector_start )
action = MOVE_LEFT_GROW ;
}
else if ( partition_new->get_sector_length() < partition_original->get_sector_length() )
{
//Shrink partition
action = SHRINK ;
if ( partition_new->sector_start > partition_original->sector_start )
action = MOVE_RIGHT_SHRINK ;
if ( partition_new->sector_start < partition_original->sector_start )
action = MOVE_LEFT_SHRINK ;
}
else
{
//No change in partition size
if ( partition_new->sector_start > partition_original->sector_start )
action = MOVE_RIGHT ;
if ( partition_new->sector_start < partition_original->sector_start )
action = MOVE_LEFT ;
}
switch ( action )
{
case NONE :
description = Glib::ustring::compose( _("resize/move %1"), partition_original->get_path() );
description += " (" ;
description += _("new and old partition have the same size and position. Hence continuing anyway") ;
description += ")" ;
break ;
case MOVE_RIGHT :
description = Glib::ustring::compose( _("Move %1 to the right"), partition_original->get_path() );
break ;
case MOVE_LEFT :
description = Glib::ustring::compose( _("Move %1 to the left"), partition_original->get_path() );
break ;
case GROW :
description = _("Grow %1 from %2 to %3") ;
break ;
case SHRINK :
description = _("Shrink %1 from %2 to %3") ;
break ;
case MOVE_RIGHT_GROW :
description = _("Move %1 to the right and grow it from %2 to %3") ;
break ;
case MOVE_RIGHT_SHRINK :
description = _("Move %1 to the right and shrink it from %2 to %3") ;
break ;
case MOVE_LEFT_GROW :
description = _("Move %1 to the left and grow it from %2 to %3") ;
break ;
case MOVE_LEFT_SHRINK :
description = _("Move %1 to the left and shrink it from %2 to %3") ;
break ;
}
if ( ! description .empty() && action != NONE && action != MOVE_LEFT && action != MOVE_RIGHT )
description = Glib::ustring::compose( description,
partition_original->get_path(),
Utils::format_size( partition_original->get_sector_length(),
partition_original->sector_size ),
Utils::format_size( partition_new->get_sector_length(),
partition_new->sector_size ) );
}
void OperationResizeMove::apply_normal_to_visual( PartitionVector & partitions )
{
g_assert( partition_original != NULL ); // Bug: Not initialised by constructor or reset later
g_assert( partition_new != NULL ); // 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 )
{
partitions[index_extended].logicals.replace_at( index, partition_new );
remove_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 );
}
}
}
else
{
index = find_index_original( partitions ) ;
if ( index >= 0 )
{
partitions.replace_at( index, partition_new );
remove_adjacent_unallocated( partitions, index ) ;
insert_unallocated( partitions, 0, device .length -1, device .sector_size, false ) ;
}
}
}
void OperationResizeMove::apply_extended_to_visual( PartitionVector & partitions )
{
g_assert( partition_new != NULL ); // Bug: Not initialised by constructor or reset later
int index_extended;
//stuff OUTSIDE extended partition
index_extended = find_extended_partition( partitions );
if ( index_extended >= 0 )
{
remove_adjacent_unallocated( partitions, index_extended ) ;
index_extended = find_extended_partition( partitions );
if ( index_extended >= 0 )
{
partitions[index_extended].sector_start = partition_new->sector_start;
partitions[index_extended].sector_end = partition_new->sector_end;
}
insert_unallocated( partitions, 0, device .length -1, device .sector_size, false ) ;
}
//stuff INSIDE extended partition
index_extended = find_extended_partition( partitions );
if ( index_extended >= 0 )
{
if ( partitions[ index_extended ] .logicals .size() > 0 &&
partitions[index_extended].logicals.front().type == TYPE_UNALLOCATED )
partitions[ index_extended ] .logicals .erase( partitions[ index_extended ] .logicals .begin() ) ;
if ( partitions[ index_extended ] .logicals .size() &&
partitions[index_extended].logicals.back().type == TYPE_UNALLOCATED )
partitions[ index_extended ] .logicals .pop_back() ;
insert_unallocated( partitions[ index_extended ] .logicals,
partitions[ index_extended ] .sector_start,
partitions[ index_extended ] .sector_end,
device .sector_size,
true ) ;
}
}
void OperationResizeMove::remove_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
if (index_orig-1 >= 0 && partitions[index_orig-1].type == TYPE_UNALLOCATED)
partitions .erase( partitions .begin() + ( index_orig -1 ) ) ;
}
bool OperationResizeMove::merge_operations( const Operation & candidate )
{
g_assert( partition_new != NULL ); // Bug: Not initialised by constructor or reset later
if ( candidate.type == OPERATION_RESIZE_MOVE &&
*partition_new == candidate.get_partition_original() )
{
delete partition_new;
partition_new = candidate.get_partition_new().clone();
create_description();
return true;
}
return false;
}
} //GParted
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