Return newly constructed partition object by reference rather than by
copy from the Copy, Resize/Move and New dialog classes. This is another
case of stopping copying partition objects in preparation for using
polymorphic Partition objects. In C++ polymorphism has to use pass by
pointer and reference and not pass by value, copying, to avoid object
slicing.
The returned reference to the partition is only valid until the dialog
object containing the new_partition member is destroyed. This is okay
because in all three cases the returned referenced partition is copied
into a context with new lifetime expectations before the dialog object
is destroyed.
Case 1: GParted_Core::activate_paste()
Referenced new_partition is copied in the OperationCopy constructor
before the dialog object goes out of scope.
Operation * operation = new OperationCopy( ...,
dialog.Get_New_Partition( ... ),
... );
Case 2: GParted_Core::activate_new()
Referenced new_partition is copied in the OperationCreate
constructor before the dialog object goes out of scope.
Operation * operation = new OperationCreate( ...,
dialog.Get_New_Partition( ... ) );
Case 3: GParted_Core::activate_resize()
Temporary partition object is copied from the referenced
new_partition before the dialog object goes out of scope.
Partition part_temp = dialog.Get_New_Partition( ... );
Bug 757671 - Rework Dialog_Partition_New::Get_New_Partition() a bit
The member variable was named selected_partition. It is assigned from
Win_GParted::selected_partition_ptr (which is a pointer to a const
partition object so is never updated). This gives connotations that it
won't be modified.
However it is updated freely as the new resultant partition object is
prepared before being returned from the dialog, most notable in the
Get_New_Partition() methods.
Therefore rename from selected_partition to new_partition.
The code goes like this:
Dialog_Partition_Copy::Get_New_Partition()
call Dialog_Base_Partition::Get_New_Partition()
Update this->selected_partition with results from running
the dialog.
return this->selected_partition by value.
Save value back to this->selected_partition.
Update this->selected_partition some more.
return this->selected_partition by value.
So there is an unnecessary copy of the partition object returned from
the base class Get_New_Partition() function back to the same variable in
the derived copy class Get_New_Partition() function.
Need to keep the base class Get_New_Partition() function as derived
class Dialog_Partition_Resize_Move uses that implementation as it
doesn't override it, and it's part of the interface.
Avoid this unnecessary copy by moving base class Get_New_Partition()
code into a new private function, called prepare_new_partition(), which
doesn't return anything. Then have Get_New_Partition() in both classes
just return the required partition object. Like this:
Dialog_Base_Partition::Get_New_Partition()
call prepare_new_partition()
return this->selected_partition by value.
Dialog_Partition_Copy::Get_New_Partition()
call Dialog_Base_Partition::prepare_new_partition()
Update this->selected_partition some more.
return this->selected_partition by value.
Bug 750168 - Reduce the amount of copying of partition objects
This is part of parent bug:
Bug #721455 - Obsolete info in license text on multiple modules
and GNOME Goal:
https://wiki.gnome.org/Initiatives/GnomeGoals/Proposals
* verify all source files to make sure they have a license and a
copyright, and that both are up-to-date
Bug #721565 - License text contains obsolete FSF postal address
Steps to reproduce:
1) Open any of these dialogs: Create New Partition, Resize/Move or
Paste;
2) Update any of the following numeric entry fields to a different value
using the keyboard: Free space preceding, New size or Free space
following;
3) Press [Esc] key;
Gparted crashes.
What is happening is that the [Esc] key is leading to the dialog being
closed and calling the ~Dialog_Base_Partition() destructor. However
after this the GTK widget is calling the on_spinbutton_value_change()
registered callbacks for the change to the other two values, on the now
just deleted object.
Fix by disconnecting the change notification callbacks in the
destructor.
Closes bug #682658 - GParted crash by pressing Esc in dialogs with
number entry
When pasting a copied partition into free space or move/resizing a
partition set its space utilisation so that any unallocated space within
the partition is displayed correctly before the operation is applied.
NOTE:
If the file system does not support file system resizing the Paste and
Move/Resize dialogs don't allow resizing the partition so the preview
will always be correct, unlike the case in the previous patch:
Set unallocated space when performing simple operations (#499202)
Also remove the deprecated and no longer used Partition::Set_Unused()
and Partition::set_used() methods.
Bug #499202 - gparted does not see the difference if partition size
differs from filesystem size
Some classes contained private attributes which were used only by a single
member function. Such items were moved to the corresponding function implementations
to stress their limited usage scope.
A few unused variables were also deleted.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Re-work logic for copying a cylinder aligned partition to a new
MiB aligned partition. Previously this was partially fixed in
bug #626946 - Destination partition smaller than source partition
Closes Bug #639393 - Redux: Destination partition smaller than
source partition
Correct problem introduced in version 0.6.3 whereby move or copy
operations using MiB alignment resulted in the destination
partition being 1 MiB larger.
Closes bug #632478
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.
Make align to MiB the default setting instead of align to cylinder.
Migrate logic for alignment to cylinder into its own method
snap_to_cylinder, and place common logic in snap_to_alignment.
Add alignment checks for situations where space is needed for Master
Boot Record or Extended Boot Record.
Adjust ranges on spin buttons according to required boot record space.
Copy fix for off by one sector (#596552) from
Dialog_Partition_New::Get_New_Partition to
Dialog_Base_Partition::Get_New_Partition
Enhance resize / move logic for checking locations of nearby logical
partitions to not depend on the partition ordering.
Note: This commit does not include limiting graphic movement according
to required boot record space.
Also add signal handler to alignment menu to update file system
minimum size.
This enhancement is to prepare for adding a third alignment
option to align to MiB.
With the removal of the 512 byte constants, such as MEBIBYTE, it
was possible to rename the _FACTOR constants back to BYTE
constants. The _FACTOR constants, such as MEBI_FACTOR, were a
temporary measure to help in the transition to support devices
with sector sizes > 512 bytes.
Restore copyright entries by original author to those of his last
known repository commit titled "released gparted-0.3.4 on
LarryT's request." on Feb 25, 2007.
Add my own copyright entries for files in which I changed source
code. Files in which I only made spelling changes do not have my
copyright entry added.
* include/Device.h,
include/Dialog_Base_Partition.h,
src/Dialog_Base_Partition.cc: replaced 'long' with 'Sector' to
prefent overflows with really large devices.
* src/Dialog_Base_Partition.cc,
src/FrameVisualDisk.cc: added FIXME
* src/Win_GParted.cc: force processing of all pending Gtk::Main events
after Refresh_Visual. This fixes an issue with incorrect displayed
Visual Partition Display.
* include/Frame_Resizer_Base.h,
include/Frame_Resizer_Extended.h,
src/Dialog_Base_Partition.cc,
src/Dialog_Partition_Copy.cc,
src/Dialog_Partition_New.cc,
src/Dialog_Partition_Resize_Move.cc,
src/Frame_Resizer_Base.cc,
src/Frame_Resizer_Extended.cc: did lots of work on the resizer, it's
behaviour should be more natural and satisfying now. (see also
#331591)
* src/Win_GParted.cc: extended partition was resizable even when it's
busy. fixed.
* src/ntfs.cc: made scan output more readable.
* src/FrameVisualDisk.cc: added FIXME
* implemented Utils::sector_to_unit() and use it in several places
* (finally) fixed errors with ntfsresizing (had a lot to do with
difference between MB and MiB)
* resizing of reiserfs now shows more detailed feedback
* support for TebiByte (TiB) unit
* replaced the inline Utils functions with static functions.
This shaves a few kbytes (24 in fact) off the binary and is a bit
cleaner code-wise (imho).
* include/Dialog_Base_Partition.h,
src/Dialog_Base_Partition.cc,
src/Dialog_Partition_Copy.cc,
src/Dialog_Partition_Resize_Move.cc: Fixed bug in copy functionality (due to unset ORIG_START startsector wasn't set correctly). Also have ORIG*
initialized in ctor of dialogbase to prevent such errors from ever happening again (this one only showed up with gcc-3.3.5) .
* src/GParted_Core.cc: removed sleep( 1 ). This isn't needed anymore now the layout is scanned before the re-readtest. (saves seconds at scantime :) )
* replaced C-style typeconversion with static_casts throughout the project.
* added MIN and MAX to filesystemstruct to set min. and max sizes of a filesystem. So instead of checking per filesystem
i now simply check the fs.MIN or fs.MAX. this results in less and cleaner code. Also this will come in handy when adding
support for new filesystems. (This also fixed several minor bugs with filesystemsizes and gained some improvement in resizer
performance)
* Rewrote a large part of gparteds internal code. Filesystemssupport is now much more separated from the rest of gparted and
adding support for other filesystems should be a piece of cake now (hope that's true :P)
It still needs a lot of love, but the foundations are laid =)
Mike Fleetwood