[gparted] Select unallocated partition by default (#667365)

[Curtis Gedak <gedakc src gnome org>]

commit 3dd769d955764455ade6ddee746a37657bff8f4a
Author: Phillip Susi <psusi ubuntu com>
Date:   Sun Jan 20 22:54:02 2013 -0500

    Select unallocated partition by default (#667365)
    
    After a refresh, instead of having no partition selected, default to the
    largest unallocated partition.  This allows immediate creation of a new
    partition in the unallocated space.
    
    Closes Bug 667365 - Free space should be selected by default

 src/Win_GParted.cc |   14 +++++++++++++-
 1 files changed, 13 insertions(+), 1 deletions(-)
---
diff --git a/src/Win_GParted.cc b/src/Win_GParted.cc
index e804503..3da063a 100644
--- a/src/Win_GParted.cc
+++ b/src/Win_GParted.cc
@@ -820,6 +820,7 @@ bool Win_GParted::Merge_Operations( unsigned int first, unsigned int second )
 void Win_GParted::Refresh_Visual()
 {
        std::vector<Partition> partitions = devices[ current_device ] .partitions ; 
+       int largest_unallocated = -1;
        
        //make all operations visible
        for ( unsigned int t = 0 ; t < operations .size(); t++ )
@@ -859,7 +860,12 @@ void Win_GParted::Refresh_Visual()
                                index_extended = t ;
                                primary_count++;
                                break;
-                               
+                       case GParted::TYPE_UNALLOCATED  :
+                               if (largest_unallocated == -1)
+                                       largest_unallocated = t;
+                               else if( (partitions[t].sector_end - partitions[t].sector_start) >
+                                        (partitions[largest_unallocated].sector_end - 
partitions[largest_unallocated].sector_start))
+                                       largest_unallocated = t;
                        default                         :
                                break;
                }
@@ -873,6 +879,12 @@ void Win_GParted::Refresh_Visual()
        
        //no partition can be selected after a refresh..
        selected_partition .Reset() ;
+       if( largest_unallocated != -1 )
+       {
+               selected_partition = partitions[largest_unallocated];
+               treeview_detail.set_selected( selected_partition );
+               drawingarea_visualdisk.set_selected( selected_partition );
+       }
        set_valid_operations() ; 
                        
        while ( Gtk::Main::events_pending() )