[gparted] Fix paste destination partition smaller than source (#626946)

[Curtis Gedak <gedakc src gnome org>]

commit b77a5e229dae407b40fdf6661483a3808797251d
Author: Curtis Gedak <gedakc gmail com>
Date:   Thu Sep 9 13:09:55 2010 -0600

    Fix paste destination partition smaller than source (#626946)
    
    Prior to this enhancement when copying and pasting a partition
    after a cylinder aligned partition, the destination partition
    would become smaller than the source partition if align to MiB
    was selected.
    
    Closes bug #626946 - Destination partition smaller than source
                         partition.

 src/Dialog_Base_Partition.cc |   11 ++++++++++-
 1 files changed, 10 insertions(+), 1 deletions(-)
---
diff --git a/src/Dialog_Base_Partition.cc b/src/Dialog_Base_Partition.cc
index c5c283f..8f18c07 100644
--- a/src/Dialog_Base_Partition.cc
+++ b/src/Dialog_Base_Partition.cc
@@ -171,7 +171,16 @@ Partition Dialog_Base_Partition::Get_New_Partition( Byte_Value sector_size )
 	switch ( optionmenu_alignment .get_history() )
 	{
 		case  0 :  selected_partition .alignment = ALIGN_CYLINDER;  break;
-		case  1 :  selected_partition .alignment = ALIGN_MEBIBYTE;  break;
+		case  1 :  selected_partition .alignment = ALIGN_MEBIBYTE;
+		           {
+		               //if free space available, grow partition so sector_end on mebibyte boundary
+		               Sector diff = ( MEBIBYTE / selected_partition .sector_size ) - ( selected_partition .sector_end + 1 ) % ( MEBIBYTE / selected_partition .sector_size ) ;
+		               if (   diff
+		                   && ( ( selected_partition .sector_end - START +1 + diff ) < total_length )
+		                  )
+		                   selected_partition .sector_end += diff ;
+		           }
+		           break;
 		case  2 :  selected_partition .alignment = ALIGN_STRICT;  break;
 
 		default :  selected_partition .alignment = ALIGN_MEBIBYTE ;