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implemented snap to cylinder algorithm. Although the algorithm is very 

* src/Win_GParted.cc,
  include/GParted_Core.h,
  src/GParted_Core.cc: implemented snap to cylinder algorithm.
  Although the algorithm is very simple, it seems to work perfectly.
  However, some additional testing is required.
This commit is contained in:
Bart Hakvoort 2006-07-17 20:54:41 +00:00
parent 37bb7bb4a6
commit 8c5326e8b6
4 changed files with 44 additions and 5 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
2006-07-17 Bart Hakvoort <hakvoort@cvs.gnome.org>
* src/Win_GParted.cc,
include/GParted_Core.h,
src/GParted_Core.cc: implemented snap to cylinder algorithm.
Although the algorithm is very simple, it seems to work perfectly.
However, some additional testing is required.
2006-07-11 Bart Hakvoort <hakvoort@cvs.gnome.org>
* lots of fixes and improvements (mostly move-related)

2
include/GParted_Core.h
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@ -38,7 +38,7 @@ public:
void set_user_devices( const std::vector<Glib::ustring> & user_devices ) ;
void set_devices( std::vector<Device> & devices ) ;
bool snap_to_cylinder( Partition & partition ) ;
bool snap_to_cylinder( const Device & device, Partition & partition ) ;
bool apply_operation_to_disk( Operation * operation );
bool set_disklabel( const Glib::ustring & device_path, const Glib::ustring & disklabel ) ;

35
src/GParted_Core.cc
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@ -229,9 +229,40 @@ void GParted_Core::set_devices( std::vector<Device> & devices )
fstab_info .clear() ;
}
bool GParted_Core::snap_to_cylinder( Partition & partition )
bool GParted_Core::snap_to_cylinder( const Device & device, Partition & partition )
{
//FIXME: insert here basicly the functionality of snap_to_boundaries from parted.c
if ( ! partition .strict )
{
Sector diff = partition .sector_start % device .cylsize ;
if ( diff )
{
if ( diff < ( device .cylsize / 2 ) )
partition .sector_start -= diff ;
else
partition .sector_start += (device .cylsize - diff ) ;
}
diff = (partition .sector_end +1) % device .cylsize ;
if ( diff )
{
if ( diff < ( device .cylsize / 2 ) )
partition .sector_end -= diff ;
else
partition .sector_end += (device .cylsize - diff ) ;
}
if ( partition .sector_start < 0 )
partition .sector_start = 0 ;
if ( partition .sector_end > device .length )
partition .sector_end = device .length -1 ;
//FIXME: it would be perfect if we could check for overlapping with adjacent partitions as well,
//however, finding the adjacent partitions is not as easy as it seems and at this moment all the dialogs
//already perform these checks. A perfect 'fixme-later' ;)
//FIXME: what kind of errorchecking could we do here? maybe checking if partitionlenght > used?
}
return true ;
}

2
src/Win_GParted.cc
View File

@ -617,7 +617,7 @@ void Win_GParted::Add_Operation( OperationType operationtype,
}
//FIXME: do this in two separate steps and be more verbose in case of error..
if ( operation && gparted_core .snap_to_cylinder( operation ->partition_new ) )
if ( operation && gparted_core .snap_to_cylinder( operation ->device, operation ->partition_new ) )
{
operation ->create_description() ;