gparted/src/Dialog_Partition_Copy.cc

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/* Copyright (C) 2004 Bart
* Copyright (C) 2008, 2009, 2010 Curtis Gedak
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*
* 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 Library General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "../include/Dialog_Partition_Copy.h"
namespace GParted
{
Dialog_Partition_Copy::Dialog_Partition_Copy( const FS & fs, Sector cylinder_size )
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{
this ->fs = fs ;
BUF = cylinder_size ;
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Set_Resizer( false ) ;
Set_Confirm_Button( PASTE ) ;
}
void Dialog_Partition_Copy::Set_Data( const Partition & selected_partition, const Partition & copied_partition )
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{
this ->set_title( String::ucompose( _("Paste %1"), copied_partition .get_path() ) ) ;
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//set partition color
frame_resizer_base ->set_rgb_partition_color( copied_partition .color ) ;
//set some widely used values...
START = selected_partition .sector_start ;
total_length = selected_partition .get_sector_length() ;
TOTAL_MB = Utils::round( Utils::sector_to_unit( selected_partition .get_sector_length(), selected_partition .sector_size, UNIT_MIB ) ) ;
MB_PER_PIXEL = TOTAL_MB / 500.00 ;
//Determine minimum number of sectors needed in destination (selected) partition and
// handle situation where src sector size is smaller than dst sector size and an additional partial dst sector is required.
Sector copied_min_sectors = ( copied_partition .get_byte_length() + (selected_partition .sector_size - 1) ) / selected_partition .sector_size ;
long COPIED_LENGTH_MB = Utils::round( Utils::sector_to_unit( copied_min_sectors, selected_partition .sector_size, UNIT_MIB ) ) ;
// /* Copy Primary not at start of disk to within Extended partition */
// Adjust when a primary partition is copied and pasted
// into an unallocated space in an extended partition
// of an MSDOS partition table.
// Since the Extended Boot Record requires an additional track,
// this must be considered in the required space for the
// destination (selected) partition.
// NOTE: This problem does not occur for a primary partition
// at the the start of the disk because the size of the EBR and
// Master Boot Record are the same.
//
// /* Copy Primary not at start of disk to Primary at start of disk */
// Also Adjust when a primary partition that does not start at the
// beginning of the disk is copied and pasted
// into an unallocated space at the start of the disk device.
// Since the Master Boot Record requires an additional track,
// this must be considered in the required space for the
// destination (selected) partition.
//
// Because the largest unit used in the GUI is one
// cylinder size (round to cylinders), the space
// needed in the destination partition needs to be increased
// by enough to round up one cylinder size.
// Increase by half a cylinder size (or 4 MB) because this
// will round up to the next cylinder size.
// 8 MB is typical cylinder size with todays larger disks.
// 8 MB = (255 heads) * (63 sectors) * (512 bytes)
//
//FIXME: Should confirm MSDOS partition table type, track sector size, and use cylinder size from device
if ( (/* Copy Primary not at start of disk to within Extended partition */
copied_partition .type == TYPE_PRIMARY
&& copied_partition .sector_start > 63
&& selected_partition .type == TYPE_UNALLOCATED
&& selected_partition .inside_extended
)
|| ( /* Copy Primary not at start of disk to Primary at start of disk */
copied_partition .type == TYPE_PRIMARY
&& copied_partition .sector_start > 63
&& selected_partition .type == TYPE_UNALLOCATED
&& selected_partition .sector_start <=63 /* Beginning of disk device */
&& ! selected_partition .inside_extended
)
)
COPIED_LENGTH_MB += 4 ;
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//now calculate proportional length of partition
frame_resizer_base ->set_x_start( 0 ) ;
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int x_end = Utils::round( COPIED_LENGTH_MB / ( TOTAL_MB/500.00 ) ) ; //> 500 px only possible with xfs...
frame_resizer_base ->set_x_end( x_end > 500 ? 500 : x_end ) ;
frame_resizer_base ->set_used(
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Utils::round( Utils::sector_to_unit(
copied_partition .sectors_used, copied_partition .sector_size, UNIT_MIB ) / (TOTAL_MB/500.00) ) ) ;
if ( fs .grow )
fs .MAX = ( ! fs .MAX || fs .MAX > (TOTAL_MB * MEBIBYTE) ) ? (TOTAL_MB * MEBIBYTE) : fs .MAX - (BUF * selected_partition .sector_size) ;
else
fs .MAX = copied_partition .get_byte_length() ;
//TODO: Since BUF is the cylinder size of the current device, the cylinder size of the copied device could differ for small disks
if ( fs .filesystem == GParted::FS_XFS ) //bit hackisch, but most effective, since it's a unique situation
fs .MIN = ( copied_partition .sectors_used + (BUF * 2) ) * copied_partition .sector_size;
else
fs .MIN = COPIED_LENGTH_MB * MEBIBYTE ;
GRIP = true ;
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//set values of spinbutton_before
spinbutton_before .set_range( 0, TOTAL_MB - Utils::round( Utils::sector_to_unit( fs .MIN, 1 /* Byte */, UNIT_MIB ) ) ) ;
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spinbutton_before .set_value( 0 ) ;
//set values of spinbutton_size
spinbutton_size .set_range(
Utils::round( Utils::sector_to_unit( fs .MIN, 1 /* Byte */, UNIT_MIB ) ),
Utils::round( Utils::sector_to_unit( fs .MAX, 1 /* Byte */, UNIT_MIB ) ) ) ;
spinbutton_size .set_value( COPIED_LENGTH_MB ) ;
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//set values of spinbutton_after
spinbutton_after .set_range( 0, TOTAL_MB - Utils::round( Utils::sector_to_unit( fs .MIN, 1 /* Byte */, UNIT_MIB ) ) ) ;
spinbutton_after .set_value( TOTAL_MB - COPIED_LENGTH_MB ) ;
GRIP = false ;
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frame_resizer_base ->set_size_limits( Utils::round( fs .MIN / (MB_PER_PIXEL * MEBIBYTE) ),
Utils::round( fs .MAX / (MB_PER_PIXEL * MEBIBYTE) ) ) ;
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//set contents of label_minmax
Set_MinMax_Text(
Utils::round( Utils::sector_to_unit( fs .MIN, 1 /* Byte */, UNIT_MIB ) ),
Utils::round( Utils::sector_to_unit( fs .MAX, 1 /* Byte */, UNIT_MIB ) ) ) ;
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//set global selected_partition (see Dialog_Base_Partition::Get_New_Partition )
this ->selected_partition = copied_partition ;
this ->selected_partition .device_path = selected_partition .device_path ;
this ->selected_partition .inside_extended = selected_partition .inside_extended ;
this ->selected_partition .type =
selected_partition .inside_extended ? GParted::TYPE_LOGICAL : GParted::TYPE_PRIMARY ;
this ->show_all_children() ;
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}
Partition Dialog_Partition_Copy::Get_New_Partition( Byte_Value sector_size )
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{
//first call baseclass to get the correct new partition
selected_partition = Dialog_Base_Partition::Get_New_Partition( sector_size ) ;
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//set proper name and status for partition
selected_partition .status = GParted::STAT_COPY ;
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return selected_partition ;
}
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} //GParted