symbol_editor_undo_redo.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2007 Jean-Pierre Charras, jp.charras at wanadoo.fr
 * Copyright (C) 2014-2021 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 <symbol_edit_frame.h>
#include <symbol_library_manager.h>
#include <widgets/lib_tree.h>
#include <symbol_tree_pane.h>
#include <tool/tool_manager.h>
#include <tools/ee_actions.h>
#include <tools/ee_selection_tool.h>

void SYMBOL_EDIT_FRAME::SaveCopyInUndoList( EDA_ITEM* aItem, UNDO_REDO aUndoType, bool aAppend )
{
 wxASSERT_MSG( !aAppend, wxT( "Append not needed/supported for symbol editor" ) );

 if( !aItem )
 return;

 LIB_SYMBOL* copyItem;
 PICKED_ITEMS_LIST* lastcmd = new PICKED_ITEMS_LIST();

 copyItem = new LIB_SYMBOL( * (LIB_SYMBOL*) aItem );

 // Clear current flags (which can be temporary set by a current edit command).
 copyItem->ClearTempFlags();
 copyItem->ClearEditFlags();
 copyItem->SetFlags( UR_TRANSIENT );

 ITEM_PICKER wrapper( GetScreen(), copyItem, aUndoType );
 lastcmd->PushItem( wrapper );
 PushCommandToUndoList( lastcmd );

 // Clear redo list, because after new save there is no redo to do.
 ClearUndoORRedoList( REDO_LIST );
}


void SYMBOL_EDIT_FRAME::GetSymbolFromRedoList()
{
 if( GetRedoCommandCount() <= 0 )
 return;

 m_toolManager->RunAction( EE_ACTIONS::clearSelection, true );

 // Load the last redo entry
 PICKED_ITEMS_LIST* redoCommand = PopCommandFromRedoList();
 ITEM_PICKER redoWrapper = redoCommand->PopItem();
 delete redoCommand;
 LIB_SYMBOL* symbol = (LIB_SYMBOL*) redoWrapper.GetItem();
 wxCHECK( symbol, /* void */ );
 symbol->ClearFlags( UR_TRANSIENT );
 UNDO_REDO undoRedoType = redoWrapper.GetStatus();

 // Store the current symbol in the undo buffer
 PICKED_ITEMS_LIST* undoCommand = new PICKED_ITEMS_LIST();
 LIB_SYMBOL* oldSymbol = m_symbol;
 oldSymbol->SetFlags( UR_TRANSIENT );
 ITEM_PICKER undoWrapper( GetScreen(), oldSymbol, undoRedoType );
 undoCommand->PushItem( undoWrapper );
 PushCommandToUndoList( undoCommand );

 // Do not delete the previous symbol by calling SetCurSymbol( symbol )
 // which calls delete <previous symbol>.
 // <previous symbol> is now put in undo list and is owned by this list
 // Just set the current symbol to the symbol which come from the redo list
 m_symbol = symbol;

 if( undoRedoType == UNDO_REDO::LIB_RENAME )
 {
 wxString lib = GetCurLib();
 m_libMgr->UpdateSymbolAfterRename( symbol, oldSymbol->GetName(), lib );

 // Reselect the renamed symbol
 m_treePane->GetLibTree()->SelectLibId( LIB_ID( lib, symbol->GetName() ) );
 }

 RebuildSymbolUnitsList();
 SetShowDeMorgan( symbol->HasConversion() );
 updateTitle();

 RebuildView();
 OnModify();
}


void SYMBOL_EDIT_FRAME::GetSymbolFromUndoList()
{
 if( GetUndoCommandCount() <= 0 )
 return;

 m_toolManager->RunAction( EE_ACTIONS::clearSelection, true );

 // Load the last undo entry
 PICKED_ITEMS_LIST* undoCommand = PopCommandFromUndoList();
 ITEM_PICKER undoWrapper = undoCommand->PopItem();
 delete undoCommand;
 LIB_SYMBOL* symbol = (LIB_SYMBOL*) undoWrapper.GetItem();
 wxCHECK( symbol, /* void */ );
 symbol->ClearFlags( UR_TRANSIENT );
 UNDO_REDO undoRedoType = undoWrapper.GetStatus();

 // Store the current symbol in the redo buffer
 PICKED_ITEMS_LIST* redoCommand = new PICKED_ITEMS_LIST();
 LIB_SYMBOL* oldSymbol = m_symbol;
 oldSymbol->SetFlags( UR_TRANSIENT );
 ITEM_PICKER redoWrapper( GetScreen(), oldSymbol, undoRedoType );
 redoCommand->PushItem( redoWrapper );
 PushCommandToRedoList( redoCommand );

 // Do not delete the previous symbol by calling SetCurSymbol( symbol ),
 // which calls delete <previous symbol>.
 // <previous symbol> is now put in redo list and is owned by this list.
 // Just set the current symbol to the symbol which come from the undo list
 m_symbol = symbol;

 if( undoRedoType == UNDO_REDO::LIB_RENAME )
 {
 wxString lib = GetCurLib();
 m_libMgr->UpdateSymbolAfterRename( symbol, oldSymbol->GetName(), lib );

 // Reselect the renamed symbol
 m_treePane->GetLibTree()->SelectLibId( LIB_ID( lib, symbol->GetName() ) );
 }

 RebuildSymbolUnitsList();
 SetShowDeMorgan( symbol->HasConversion() );
 updateTitle();

 RebuildView();
 OnModify();
}


void SYMBOL_EDIT_FRAME::RollbackSymbolFromUndo()
{
 m_toolManager->RunAction( EE_ACTIONS::clearSelection, true );

 // Load the last undo entry
 PICKED_ITEMS_LIST* undoCommand = PopCommandFromUndoList();

 // Check if we were already at the top of the stack
 if( !undoCommand )
 return;

 ITEM_PICKER undoWrapper = undoCommand->PopItem();
 delete undoCommand;
 LIB_SYMBOL* symbol = (LIB_SYMBOL*) undoWrapper.GetItem();
 symbol->ClearFlags( UR_TRANSIENT );
 SetCurSymbol( symbol, false );

 EE_SELECTION_TOOL* selTool = m_toolManager->GetTool<EE_SELECTION_TOOL>();
 selTool->RebuildSelection();

 RebuildSymbolUnitsList();
 SetShowDeMorgan( symbol->HasConversion() );

 RebuildView();
}