kicad/common/undo_redo_container.cpp

319 lines
7.0 KiB
C++

/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2018 jp.charras at wanadoo.fr
* Copyright (C) 2011 Wayne Stambaugh <stambaughw@verizon.net>
* Copyright (C) 2018 KiCad Developers, see AUTHORS.txt for contributors.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <fctsys.h>
#include <base_struct.h>
#include <undo_redo_container.h>
ITEM_PICKER::ITEM_PICKER( EDA_ITEM* aItem, UNDO_REDO_T aUndoRedoStatus )
{
m_undoRedoStatus = aUndoRedoStatus;
SetItem( aItem );
m_pickerFlags = 0;
m_link = NULL;
}
PICKED_ITEMS_LIST::PICKED_ITEMS_LIST()
{
m_Status = UR_UNSPECIFIED;
}
PICKED_ITEMS_LIST::~PICKED_ITEMS_LIST()
{
}
void PICKED_ITEMS_LIST::PushItem( const ITEM_PICKER& aItem )
{
m_ItemsList.push_back( aItem );
}
ITEM_PICKER PICKED_ITEMS_LIST::PopItem()
{
ITEM_PICKER item;
if( m_ItemsList.size() != 0 )
{
item = m_ItemsList.back();
m_ItemsList.pop_back();
}
return item;
}
bool PICKED_ITEMS_LIST::ContainsItem( const EDA_ITEM* aItem ) const
{
for( size_t i = 0; i < m_ItemsList.size(); i++ )
{
if( m_ItemsList[ i ].GetItem() == aItem )
return true;
}
return false;
}
int PICKED_ITEMS_LIST::FindItem( const EDA_ITEM* aItem ) const
{
for( size_t i = 0; i < m_ItemsList.size(); i++ )
{
if( m_ItemsList[i].GetItem() == aItem )
return i;
}
return -1;
}
void PICKED_ITEMS_LIST::ClearItemsList()
{
m_ItemsList.clear();
}
void PICKED_ITEMS_LIST::ClearListAndDeleteItems()
{
// Delete items is they are not flagged UR_NEW, or if this is a block operation
while( GetCount() > 0 )
{
ITEM_PICKER wrapper = PopItem();
if( wrapper.GetItem() == NULL ) // No more item in list.
break;
// The Link is an undo construct; it is always owned by the undo/redo container
if( wrapper.GetLink() )
delete wrapper.GetLink();
if( wrapper.GetFlags() & UR_TRANSIENT )
{
delete wrapper.GetItem();
}
else if( wrapper.GetStatus() == UR_WIRE_IMAGE )
{
// Specific to eeschema: a linked list of wires is stored. The wrapper picks only
// the first item (head of list), and is owner of all picked items.
EDA_ITEM* item = wrapper.GetItem();
while( item )
{
// Delete old copy of wires
EDA_ITEM* nextitem = item->Next();
delete item;
item = nextitem;
}
}
else if( wrapper.GetStatus() == UR_DELETED )
{
// This should really be replaced with UR_TRANSIENT, but currently many clients
// (eeschema in particular) abuse this to achieve non-undo-related deletions.
delete wrapper.GetItem();
}
}
}
ITEM_PICKER PICKED_ITEMS_LIST::GetItemWrapper( unsigned int aIdx ) const
{
ITEM_PICKER picker;
if( aIdx < m_ItemsList.size() )
picker = m_ItemsList[aIdx];
return picker;
}
EDA_ITEM* PICKED_ITEMS_LIST::GetPickedItem( unsigned int aIdx ) const
{
if( aIdx < m_ItemsList.size() )
return m_ItemsList[aIdx].GetItem();
return NULL;
}
EDA_ITEM* PICKED_ITEMS_LIST::GetPickedItemLink( unsigned int aIdx ) const
{
if( aIdx < m_ItemsList.size() )
return m_ItemsList[aIdx].GetLink();
return NULL;
}
UNDO_REDO_T PICKED_ITEMS_LIST::GetPickedItemStatus( unsigned int aIdx ) const
{
if( aIdx < m_ItemsList.size() )
return m_ItemsList[aIdx].GetStatus();
return UR_UNSPECIFIED;
}
STATUS_FLAGS PICKED_ITEMS_LIST::GetPickerFlags( unsigned aIdx ) const
{
if( aIdx < m_ItemsList.size() )
return m_ItemsList[aIdx].GetFlags();
return 0;
}
bool PICKED_ITEMS_LIST::SetPickedItem( EDA_ITEM* aItem, unsigned aIdx )
{
if( aIdx < m_ItemsList.size() )
{
m_ItemsList[aIdx].SetItem( aItem );
return true;
}
return false;
}
bool PICKED_ITEMS_LIST::SetPickedItemLink( EDA_ITEM* aLink, unsigned aIdx )
{
if( aIdx < m_ItemsList.size() )
{
m_ItemsList[aIdx].SetLink( aLink );
return true;
}
return false;
}
bool PICKED_ITEMS_LIST::SetPickedItem( EDA_ITEM* aItem, UNDO_REDO_T aStatus, unsigned aIdx )
{
if( aIdx < m_ItemsList.size() )
{
m_ItemsList[aIdx].SetItem( aItem );
m_ItemsList[aIdx].SetStatus( aStatus );
return true;
}
return false;
}
bool PICKED_ITEMS_LIST::SetPickedItemStatus( UNDO_REDO_T aStatus, unsigned aIdx )
{
if( aIdx < m_ItemsList.size() )
{
m_ItemsList[aIdx].SetStatus( aStatus );
return true;
}
return false;
}
bool PICKED_ITEMS_LIST::SetPickerFlags( STATUS_FLAGS aFlags, unsigned aIdx )
{
if( aIdx < m_ItemsList.size() )
{
m_ItemsList[aIdx].SetFlags( aFlags );
return true;
}
return false;
}
bool PICKED_ITEMS_LIST::RemovePicker( unsigned aIdx )
{
if( aIdx >= m_ItemsList.size() )
return false;
m_ItemsList.erase( m_ItemsList.begin() + aIdx );
return true;
}
void PICKED_ITEMS_LIST::CopyList( const PICKED_ITEMS_LIST& aSource )
{
m_ItemsList = aSource.m_ItemsList; // Vector's copy
}
void PICKED_ITEMS_LIST::ReversePickersListOrder()
{
std::vector <ITEM_PICKER> tmp;
while( !m_ItemsList.empty() )
{
tmp.push_back( m_ItemsList.back() );
m_ItemsList.pop_back();
}
m_ItemsList.swap( tmp );
}
/**********************************************/
/********** UNDO_REDO_CONTAINER ***************/
/**********************************************/
UNDO_REDO_CONTAINER::UNDO_REDO_CONTAINER()
{
}
UNDO_REDO_CONTAINER::~UNDO_REDO_CONTAINER()
{
ClearCommandList();
}
void UNDO_REDO_CONTAINER::ClearCommandList()
{
for( unsigned ii = 0; ii < m_CommandsList.size(); ii++ )
delete m_CommandsList[ii];
m_CommandsList.clear();
}
void UNDO_REDO_CONTAINER::PushCommand( PICKED_ITEMS_LIST* aItem )
{
m_CommandsList.push_back( aItem );
}
PICKED_ITEMS_LIST* UNDO_REDO_CONTAINER::PopCommand()
{
if( m_CommandsList.size() != 0 )
{
PICKED_ITEMS_LIST* item = m_CommandsList.back();
m_CommandsList.pop_back();
return item;
}
return NULL;
}