505 lines
16 KiB
C++
505 lines
16 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2004 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
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* Copyright (C) 2004-2024 KiCad Developers, see change_log.txt for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <ee_actions.h>
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#include <sch_edit_frame.h>
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#include <tool/tool_manager.h>
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#include <schematic.h>
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#include <sch_bus_entry.h>
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#include <sch_commit.h>
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#include <sch_junction.h>
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#include <sch_line.h>
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#include <sch_bitmap.h>
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#include <sch_sheet_pin.h>
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#include <sch_table.h>
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#include <tools/ee_selection_tool.h>
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#include <drawing_sheet/ds_proxy_undo_item.h>
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#include <tool/actions.h>
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/* Functions to undo and redo edit commands.
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*
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* m_UndoList and m_RedoList handle a std::vector of PICKED_ITEMS_LIST
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* Each PICKED_ITEMS_LIST handle a std::vector of pickers (class ITEM_PICKER),
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* that store the list of schematic items that are concerned by the command to
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* undo or redo and is created for each command to undo (handle also a command
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* to redo). each picker has a pointer pointing to an item to undo or redo (in
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* fact: deleted, added or modified), and has a pointer to a copy of this item,
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* when this item has been modified (the old values of parameters are
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* therefore saved)
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*
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* there are 3 cases:
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* - delete item(s) command
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* - change item(s) command
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* - add item(s) command
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* and 2 cases for block:
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* - move list of items
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* - mirror (Y) list of items
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*
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* Undo command
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* - delete item(s) command:
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* => deleted items are moved in undo list
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*
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* - change item(s) command
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* => A copy of item(s) is made (a DrawPickedStruct list of wrappers)
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* the .m_Link member of each wrapper points the modified item.
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* the .m_Item member of each wrapper points the old copy of this item.
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*
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* - add item(s) command
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* =>A list of item(s) is made. The .m_Item member of each wrapper points
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* the new item.
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*
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* Redo command
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* - delete item(s) old command:
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* => deleted items are moved into m_tree
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*
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* - change item(s) command
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* => the copy of item(s) is moved in Undo list
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*
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* - add item(s) command
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* => The list of item(s) is used to create a deleted list in undo
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* list(same as a delete command)
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*
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* Some block operations that change items can be undone without memorized
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* items, just the coordinates of the transform: move list of items (undo/
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* redo is made by moving with the opposite move vector) mirror (Y) and flip
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* list of items (undo/redo is made by mirror or flip items) so they are
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* handled specifically.
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*
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* A problem is the hierarchical sheet handling.
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* the data associated (sub-hierarchy, undo/redo list) is deleted only
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* when the sheet is really deleted (i.e. when deleted from undo or redo list)
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* This is handled by its destructor.
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*/
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/* Used if undo / redo command:
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* swap data between Item and its copy, pointed by its picked item link member
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* swapped data is data modified by editing, so not all values are swapped
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*/
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void SCH_EDIT_FRAME::SaveCopyInUndoList( SCH_SCREEN* aScreen, SCH_ITEM* aItem,
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UNDO_REDO aCommandType, bool aAppend,
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bool aDirtyConnectivity )
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{
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PICKED_ITEMS_LIST* commandToUndo = nullptr;
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wxCHECK( aItem, /* void */ );
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if( aDirtyConnectivity )
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{
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if( !aItem->IsConnectivityDirty()
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&& aItem->Connection()
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&& ( aItem->Connection()->Name() == m_highlightedConn ) )
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{
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m_highlightedConnChanged = true;
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}
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aItem->SetConnectivityDirty();
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}
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PICKED_ITEMS_LIST* lastUndo = PopCommandFromUndoList();
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// If the last stack was empty, use that one instead of creating a new stack
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if( lastUndo )
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{
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if( aAppend || !lastUndo->GetCount() )
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commandToUndo = lastUndo;
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else
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PushCommandToUndoList( lastUndo );
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}
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if( !commandToUndo )
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{
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commandToUndo = new PICKED_ITEMS_LIST();
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}
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ITEM_PICKER itemWrapper( aScreen, aItem, aCommandType );
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itemWrapper.SetFlags( aItem->GetFlags() );
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switch( aCommandType )
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{
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case UNDO_REDO::CHANGED: /* Create a copy of item */
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itemWrapper.SetLink( aItem->Duplicate( true ) );
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commandToUndo->PushItem( itemWrapper );
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break;
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case UNDO_REDO::NEWITEM:
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case UNDO_REDO::DELETED:
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commandToUndo->PushItem( itemWrapper );
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break;
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default:
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wxFAIL_MSG( wxString::Format( wxT( "SaveCopyInUndoList() error (unknown code %X)" ),
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aCommandType ) );
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break;
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}
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if( commandToUndo->GetCount() )
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{
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/* Save the copy in undo list */
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PushCommandToUndoList( commandToUndo );
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/* Clear redo list, because after new save there is no redo to do */
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ClearUndoORRedoList( REDO_LIST );
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}
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else
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{
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delete commandToUndo;
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}
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}
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void SCH_EDIT_FRAME::SaveCopyInUndoList( const PICKED_ITEMS_LIST& aItemsList,
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UNDO_REDO aTypeCommand, bool aAppend,
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bool aDirtyConnectivity )
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{
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PICKED_ITEMS_LIST* commandToUndo = nullptr;
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if( !aItemsList.GetCount() )
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return;
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PICKED_ITEMS_LIST* lastUndo = PopCommandFromUndoList();
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// If the last stack was empty, use that one instead of creating a new stack
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if( lastUndo )
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{
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if( aAppend || !lastUndo->GetCount() )
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commandToUndo = lastUndo;
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else
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PushCommandToUndoList( lastUndo );
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}
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if( !commandToUndo )
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{
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commandToUndo = new PICKED_ITEMS_LIST();
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commandToUndo->SetDescription( aItemsList.GetDescription() );
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}
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// Copy picker list:
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if( !commandToUndo->GetCount() )
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commandToUndo->CopyList( aItemsList );
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else
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{
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// Unless we are appending, in which case, get the picker items
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for( unsigned ii = 0; ii < aItemsList.GetCount(); ii++ )
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commandToUndo->PushItem( aItemsList.GetItemWrapper( ii) );
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}
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// Verify list, and creates data if needed
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for( unsigned ii = 0; ii < commandToUndo->GetCount(); ii++ )
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{
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SCH_ITEM* sch_item = dynamic_cast<SCH_ITEM*>( commandToUndo->GetPickedItem( ii ) );
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// Common items implemented in EDA_DRAW_FRAME will not be SCH_ITEMs.
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if( !sch_item )
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continue;
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UNDO_REDO command = commandToUndo->GetPickedItemStatus( ii );
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if( command == UNDO_REDO::UNSPECIFIED )
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{
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command = aTypeCommand;
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commandToUndo->SetPickedItemStatus( command, ii );
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}
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switch( command )
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{
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case UNDO_REDO::CHANGED:
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/* If needed, create a copy of item, and put in undo list
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* in the picker, as link
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* If this link is not null, the copy is already done
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*/
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if( commandToUndo->GetPickedItemLink( ii ) == nullptr )
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commandToUndo->SetPickedItemLink( sch_item->Duplicate( true ), ii );
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wxASSERT( commandToUndo->GetPickedItemLink( ii ) );
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break;
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case UNDO_REDO::NEWITEM:
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case UNDO_REDO::DELETED:
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case UNDO_REDO::PAGESETTINGS:
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break;
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default:
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wxFAIL_MSG( wxString::Format( wxT( "Unknown undo/redo command %d" ), command ) );
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break;
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}
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}
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if( commandToUndo->GetCount() )
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{
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/* Save the copy in undo list */
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PushCommandToUndoList( commandToUndo );
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/* Clear redo list, because after new save there is no redo to do */
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ClearUndoORRedoList( REDO_LIST );
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}
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else // Should not occur
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{
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delete commandToUndo;
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}
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}
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void SCH_EDIT_FRAME::PutDataInPreviousState( PICKED_ITEMS_LIST* aList )
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{
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std::vector<SCH_ITEM*> bulkAddedItems;
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std::vector<SCH_ITEM*> bulkRemovedItems;
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std::vector<SCH_ITEM*> bulkChangedItems;
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std::set<SCH_TABLE*> changedTables;
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bool dirtyConnectivity = false;
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SCH_CLEANUP_FLAGS connectivityCleanUp = NO_CLEANUP;
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// Undo in the reverse order of list creation: (this can allow stacked changes like the
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// same item can be changed and deleted in the same complex command).
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// After hitting 0, subtracting 1 will roll the value over to its max representation
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for( unsigned ii = aList->GetCount() - 1; ii < std::numeric_limits<unsigned>::max(); ii-- )
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{
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UNDO_REDO status = aList->GetPickedItemStatus( ii );
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EDA_ITEM* eda_item = aList->GetPickedItem( ii );
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SCH_SCREEN* screen = dynamic_cast<SCH_SCREEN*>( aList->GetScreenForItem( ii ) );
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wxCHECK( screen, /* void */ );
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eda_item->SetFlags( aList->GetPickerFlags( ii ) );
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eda_item->ClearEditFlags();
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eda_item->ClearTempFlags();
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SCH_ITEM* schItem = dynamic_cast<SCH_ITEM*>( eda_item );
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// Set connectable object connectivity status.
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if( schItem && schItem->IsConnectable() )
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{
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schItem->SetConnectivityDirty();
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if( schItem->Type() == SCH_SYMBOL_T )
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{
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SCH_SYMBOL* symbol = static_cast<SCH_SYMBOL*>( schItem );
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wxCHECK2( symbol, continue );
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for( SCH_PIN* pin : symbol->GetPins() )
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pin->SetConnectivityDirty();
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}
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else if( schItem->Type() == SCH_SHEET_T )
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{
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SCH_SHEET* sheet = static_cast<SCH_SHEET*>( schItem );
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wxCHECK2( sheet, continue );
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for( SCH_SHEET_PIN* pin : sheet->GetPins() )
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pin->SetConnectivityDirty();
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}
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m_highlightedConnChanged = true;
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dirtyConnectivity = true;
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// Do a local clean up if there are any connectable objects in the commit.
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if( connectivityCleanUp == NO_CLEANUP )
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connectivityCleanUp = LOCAL_CLEANUP;
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// Do a full rebauild of the connectivity if there is a sheet in the commit.
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if( schItem->Type() == SCH_SHEET_T )
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connectivityCleanUp = GLOBAL_CLEANUP;
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}
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if( status == UNDO_REDO::NEWITEM )
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{
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// If we are removing the current sheet, get out first
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if( eda_item->Type() == SCH_SHEET_T )
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{
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if( static_cast<SCH_SHEET*>( eda_item )->GetScreen() == GetScreen() )
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GetToolManager()->PostAction( EE_ACTIONS::leaveSheet );
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}
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RemoveFromScreen( eda_item, screen );
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aList->SetPickedItemStatus( UNDO_REDO::DELETED, ii );
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bulkRemovedItems.emplace_back( schItem );
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}
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else if( status == UNDO_REDO::DELETED )
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{
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// deleted items are re-inserted on undo
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AddToScreen( eda_item, screen );
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aList->SetPickedItemStatus( UNDO_REDO::NEWITEM, ii );
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bulkAddedItems.emplace_back( schItem );
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}
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else if( status == UNDO_REDO::PAGESETTINGS )
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{
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SCH_SHEET_PATH undoSheet = m_schematic->GetSheets().FindSheetForScreen( screen );
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if( GetCurrentSheet() != undoSheet )
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{
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SetCurrentSheet( undoSheet );
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DisplayCurrentSheet();
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}
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// swap current settings with stored settings
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DS_PROXY_UNDO_ITEM alt_item( this );
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DS_PROXY_UNDO_ITEM* item = static_cast<DS_PROXY_UNDO_ITEM*>( eda_item );
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item->Restore( this );
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*item = std::move( alt_item );
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}
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else if( SCH_ITEM* item = dynamic_cast<SCH_ITEM*>( eda_item ) )
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{
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// everything else is modified in place
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SCH_ITEM* alt_item = static_cast<SCH_ITEM*>( aList->GetPickedItemLink( ii ) );
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// The root sheet is a pseudo object that owns the root screen object but is not on
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// the root screen so do not attempt to remove it from the screen it owns.
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if( item != &Schematic().Root() )
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RemoveFromScreen( item, screen );
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switch( status )
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{
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case UNDO_REDO::CHANGED:
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item->SwapData( alt_item );
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bulkChangedItems.emplace_back( item );
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// Special cases for items which have instance data
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if( item->GetParent() && item->GetParent()->Type() == SCH_SYMBOL_T
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&& item->Type() == SCH_FIELD_T )
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{
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SCH_FIELD* field = static_cast<SCH_FIELD*>( item );
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SCH_SYMBOL* symbol = static_cast<SCH_SYMBOL*>( item->GetParent() );
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if( field->GetId() == REFERENCE_FIELD )
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{
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SCH_SHEET_PATH sheet = m_schematic->GetSheets().FindSheetForScreen( screen );
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symbol->SetRef( &sheet, field->GetText() );
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}
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bulkChangedItems.emplace_back( symbol );
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}
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break;
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default:
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wxFAIL_MSG( wxString::Format( wxT( "Unknown undo/redo command %d" ),
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aList->GetPickedItemStatus( ii ) ) );
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break;
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}
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if( item->Type() == SCH_SYMBOL_T )
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{
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SCH_SYMBOL* sym = static_cast<SCH_SYMBOL*>( item );
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sym->UpdatePins();
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}
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if( item != &Schematic().Root() )
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AddToScreen( item, screen );
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}
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}
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GetCanvas()->GetView()->ClearHiddenFlags();
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// Notify our listeners
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if( bulkAddedItems.size() > 0 )
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Schematic().OnItemsAdded( bulkAddedItems );
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if( bulkRemovedItems.size() > 0 )
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Schematic().OnItemsRemoved( bulkRemovedItems );
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if( bulkChangedItems.size() > 0 )
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Schematic().OnItemsChanged( bulkChangedItems );
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if( dirtyConnectivity )
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{
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SCH_COMMIT localCommit( m_toolManager );
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RecalculateConnections( &localCommit, connectivityCleanUp );
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// Update the hierarchy navigator when there are sheet changes.
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if( connectivityCleanUp == GLOBAL_CLEANUP )
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{
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SetSheetNumberAndCount();
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UpdateHierarchyNavigator();
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}
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}
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}
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void SCH_EDIT_FRAME::RollbackSchematicFromUndo()
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{
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PICKED_ITEMS_LIST* undo = PopCommandFromUndoList();
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// Skip empty frames
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while( undo && !undo->GetCount() )
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{
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delete undo;
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undo = PopCommandFromUndoList();
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}
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if( undo )
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{
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PutDataInPreviousState( undo );
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undo->ClearListAndDeleteItems( []( EDA_ITEM* aItem )
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{
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delete aItem;
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} );
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delete undo;
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m_toolManager->GetTool<EE_SELECTION_TOOL>()->RebuildSelection();
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}
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GetCanvas()->Refresh();
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}
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void SCH_EDIT_FRAME::ClearUndoORRedoList( UNDO_REDO_LIST whichList, int aItemCount )
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{
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if( aItemCount == 0 )
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return;
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UNDO_REDO_CONTAINER& list = ( whichList == UNDO_LIST ) ? m_undoList : m_redoList;
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if( aItemCount < 0 )
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{
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list.ClearCommandList();
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}
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else
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{
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for( int ii = 0; ii < aItemCount; ii++ )
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{
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if( list.m_CommandsList.size() == 0 )
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break;
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PICKED_ITEMS_LIST* curr_cmd = list.m_CommandsList[0];
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list.m_CommandsList.erase( list.m_CommandsList.begin() );
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curr_cmd->ClearListAndDeleteItems( []( EDA_ITEM* aItem )
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{
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delete aItem;
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} );
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delete curr_cmd; // Delete command
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}
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}
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}
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