kicad/pcbnew/undo_redo.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2012 Jean-Pierre Charras, jean-pierre.charras@ujf-grenoble.fr
* Copyright (C) 2012 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
* Copyright (C) 2016 CERN
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* Copyright (C) 2012-2023 KiCad Developers, see AUTHORS.txt for contributors.
* @author Maciej Suminski <maciej.suminski@cern.ch>
*
* 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 <functional>
using namespace std::placeholders;
#include <macros.h>
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#include <pcb_edit_frame.h>
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#include <pcb_track.h>
#include <pcb_group.h>
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#include <pcb_generator.h>
#include <pcb_target.h>
#include <footprint.h>
#include <pad.h>
#include <origin_viewitem.h>
#include <connectivity/connectivity_data.h>
#include <tool/tool_manager.h>
#include <tool/actions.h>
#include <tools/pcb_selection_tool.h>
#include <tools/pcb_control.h>
#include <tools/board_editor_control.h>
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#include <drawing_sheet/ds_proxy_undo_item.h>
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#include <wx/msgdlg.h>
/* Functions to undo and redo edit commands.
* commands to undo are stored in CurrentScreen->m_UndoList
* commands to redo are stored in CurrentScreen->m_RedoList
*
* m_UndoList and m_RedoList handle a std::vector of PICKED_ITEMS_LIST
* Each PICKED_ITEMS_LIST handle a std::vector of pickers (class ITEM_PICKER),
* that store the list of schematic items that are concerned by the command to undo or redo
* and is created for each command to undo (handle also a command to redo).
* each picker has a pointer pointing to an item to undo or redo (in fact: deleted, added or
* modified),
* and has a pointer to a copy of this item, when this item has been modified
* (the old values of parameters are therefore saved)
*
* there are 3 cases:
* - delete item(s) command
* - change item(s) command
* - add item(s) command
*
* Undo command
* - delete item(s) command:
* => deleted items are moved in undo list
*
* - change item(s) command
* => A copy of item(s) is made (a DrawPickedStruct list of wrappers)
* the .m_Link member of each wrapper points the modified item.
* the .m_Item member of each wrapper points the old copy of this item.
*
* - add item(s) command
* =>A list of item(s) is made. The .m_Item member of each wrapper points the new item.
*
* Redo command
* - delete item(s) old command:
* => deleted items are moved in EEDrawList list, and in
*
* - change item(s) command
* => the copy of item(s) is moved in Undo list
*
* - add item(s) command
* => The list of item(s) is used to create a deleted list in undo list(same as a delete
* command)
*
* Some block operations that change items can be undone without memorize items, just the
* coordinates of the transform:
* move list of items (undo/redo is made by moving with the opposite move vector)
* mirror (Y) and flip list of items (undo/redo is made by mirror or flip items)
* so they are handled specifically.
*
*/
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void PCB_BASE_EDIT_FRAME::saveCopyInUndoList( PICKED_ITEMS_LIST* commandToUndo,
const PICKED_ITEMS_LIST& aItemsList,
UNDO_REDO aCommandType )
{
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int preExisting = commandToUndo->GetCount();
for( unsigned ii = 0; ii < aItemsList.GetCount(); ii++ )
commandToUndo->PushItem( aItemsList.GetItemWrapper(ii) );
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for( unsigned ii = preExisting; ii < commandToUndo->GetCount(); ii++ )
{
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EDA_ITEM* item = commandToUndo->GetPickedItem( ii );
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UNDO_REDO command = commandToUndo->GetPickedItemStatus( ii );
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if( command == UNDO_REDO::UNSPECIFIED )
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{
command = aCommandType;
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commandToUndo->SetPickedItemStatus( command, ii );
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}
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wxASSERT( item );
switch( command )
{
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case UNDO_REDO::CHANGED:
case UNDO_REDO::DRILLORIGIN:
case UNDO_REDO::GRIDORIGIN:
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// If we don't yet have a copy in the link, set one up
if( !commandToUndo->GetPickedItemLink( ii ) )
{
// Warning: DRILLORIGIN and GRIDORIGIN undo/redo command create EDA_ITEMs
// that cannot be casted blindly to BOARD_ITEMs (a BOARD_ITEM is derived from a EDA_ITEM)
// Especially SetParentGroup() does not exist in EDA_ITEM
EDA_ITEM* clone = static_cast<EDA_ITEM*>( item->Clone() );
if( BOARD_ITEM* brdclone = dynamic_cast<BOARD_ITEM*>( clone ) )
brdclone->SetParentGroup( nullptr );
commandToUndo->SetPickedItemLink( clone, ii );
}
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break;
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case UNDO_REDO::NEWITEM:
case UNDO_REDO::DELETED:
case UNDO_REDO::PAGESETTINGS:
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case UNDO_REDO::REGROUP:
case UNDO_REDO::UNGROUP:
break;
default:
wxFAIL_MSG( wxString::Format( wxT( "Unrecognized undo command: %X" ), command ) );
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break;
}
}
if( commandToUndo->GetCount() )
{
/* Save the copy in undo list */
PushCommandToUndoList( commandToUndo );
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/* Clear redo list, because after a new command one cannot redo a command */
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ClearUndoORRedoList( REDO_LIST );
}
else
{
// Should not occur
wxASSERT( false );
delete commandToUndo;
}
}
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void PCB_BASE_EDIT_FRAME::SaveCopyInUndoList( EDA_ITEM* aItem, UNDO_REDO aCommandType )
{
PICKED_ITEMS_LIST* commandToUndo = new PICKED_ITEMS_LIST();
PICKED_ITEMS_LIST itemsList;
itemsList.PushItem( ITEM_PICKER( nullptr, aItem, aCommandType ) );
saveCopyInUndoList( commandToUndo, itemsList, aCommandType );
}
void PCB_BASE_EDIT_FRAME::SaveCopyInUndoList( const PICKED_ITEMS_LIST& aItemsList,
UNDO_REDO aCommandType )
{
PICKED_ITEMS_LIST* commandToUndo = new PICKED_ITEMS_LIST();
commandToUndo->SetDescription( aItemsList.GetDescription() );
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saveCopyInUndoList( commandToUndo, aItemsList, aCommandType );
}
void PCB_BASE_EDIT_FRAME::AppendCopyToUndoList( const PICKED_ITEMS_LIST& aItemsList,
UNDO_REDO aCommandType )
{
PICKED_ITEMS_LIST* commandToUndo = PopCommandFromUndoList();
if( !commandToUndo )
{
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commandToUndo = new PICKED_ITEMS_LIST();
commandToUndo->SetDescription( aItemsList.GetDescription() );
}
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saveCopyInUndoList( commandToUndo, aItemsList, aCommandType );
}
void PCB_BASE_EDIT_FRAME::RestoreCopyFromUndoList( wxCommandEvent& aEvent )
{
if( UndoRedoBlocked() )
return;
if( GetUndoCommandCount() <= 0 )
return;
// Inform tools that undo command was issued
m_toolManager->ProcessEvent( { TC_MESSAGE, TA_UNDO_REDO_PRE, AS_GLOBAL } );
// Get the old list
PICKED_ITEMS_LIST* list = PopCommandFromUndoList();
// Undo the command
PutDataInPreviousState( list );
// Put the old list in RedoList
list->ReversePickersListOrder();
PushCommandToRedoList( list );
OnModify();
m_toolManager->ProcessEvent( { TC_MESSAGE, TA_UNDO_REDO_POST, AS_GLOBAL } );
m_toolManager->PostEvent( EVENTS::SelectedItemsModified );
GetCanvas()->Refresh();
}
void PCB_BASE_EDIT_FRAME::RestoreCopyFromRedoList( wxCommandEvent& aEvent )
{
if( UndoRedoBlocked() )
return;
if( GetRedoCommandCount() == 0 )
return;
// Inform tools that redo command was issued
m_toolManager->ProcessEvent( EVENTS::UndoRedoPreEvent );
// Get the old list
PICKED_ITEMS_LIST* list = PopCommandFromRedoList();
// Redo the command
PutDataInPreviousState( list );
// Put the old list in UndoList
list->ReversePickersListOrder();
PushCommandToUndoList( list );
OnModify();
m_toolManager->ProcessEvent( EVENTS::UndoRedoPostEvent );
m_toolManager->PostEvent( EVENTS::SelectedItemsModified );
GetCanvas()->Refresh();
}
void PCB_BASE_EDIT_FRAME::PutDataInPreviousState( PICKED_ITEMS_LIST* aList )
{
bool not_found = false;
bool reBuild_ratsnest = false;
bool deep_reBuild_ratsnest = false; // true later if pointers must be rebuilt
bool solder_mask_dirty = false;
auto view = GetCanvas()->GetView();
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auto connectivity = GetBoard()->GetConnectivity();
GetBoard()->IncrementTimeStamp(); // clear caches
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// Undo in the reverse order of list creation: (this can allow stacked changes
// like the same item can be changes and deleted in the same complex command
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// Restore changes in reverse order
for( int ii = (int) aList->GetCount() - 1; ii >= 0 ; ii-- )
{
EDA_ITEM* eda_item = aList->GetPickedItem( (unsigned) ii );
/* Test for existence of item on board.
* It could be deleted, and no more on board:
* - if a call to SaveCopyInUndoList was forgotten in Pcbnew
* - in zones outlines, when a change in one zone merges this zone with an other
* This test avoids a Pcbnew crash
* Obviously, this test is not made for deleted items
*/
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UNDO_REDO status = aList->GetPickedItemStatus( ii );
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if( status != UNDO_REDO::DELETED
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&& status != UNDO_REDO::REGROUP
&& status != UNDO_REDO::UNGROUP
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&& status != UNDO_REDO::DRILLORIGIN // origin markers never on board
&& status != UNDO_REDO::GRIDORIGIN // origin markers never on board
&& status != UNDO_REDO::PAGESETTINGS ) // nor are page settings proxy items
{
if( GetBoard()->GetItem( eda_item->m_Uuid ) == DELETED_BOARD_ITEM::GetInstance() )
{
// Checking if it ever happens
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wxASSERT_MSG( false, wxT( "Item in the undo buffer does not exist" ) );
// Remove this non existent item
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aList->RemovePicker( ii );
not_found = true;
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if( aList->GetCount() == 0 )
break;
continue;
}
}
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// see if we must rebuild ratsnets and pointers lists
switch( eda_item->Type() )
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{
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case PCB_FOOTPRINT_T:
deep_reBuild_ratsnest = true; // Pointers on pads can be invalid
KI_FALLTHROUGH;
case PCB_ZONE_T:
case PCB_TRACE_T:
case PCB_ARC_T:
case PCB_VIA_T:
case PCB_PAD_T:
reBuild_ratsnest = true;
break;
case PCB_NETINFO_T:
reBuild_ratsnest = true;
deep_reBuild_ratsnest = true;
break;
default:
break;
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}
switch( eda_item->Type() )
{
case PCB_FOOTPRINT_T:
solder_mask_dirty = true;
break;
case PCB_VIA_T:
solder_mask_dirty = true;
break;
case PCB_ZONE_T:
case PCB_TRACE_T:
case PCB_ARC_T:
case PCB_PAD_T:
case PCB_SHAPE_T:
{
LSET layers = static_cast<BOARD_ITEM*>( eda_item )->GetLayerSet();
if( layers.test( F_Mask ) || layers.test( B_Mask ) )
solder_mask_dirty = true;
break;
}
default:
break;
}
switch( aList->GetPickedItemStatus( ii ) )
{
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case UNDO_REDO::CHANGED: /* Exchange old and new data for each item */
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{
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BOARD_ITEM* item = (BOARD_ITEM*) eda_item;
BOARD_ITEM* image = (BOARD_ITEM*) aList->GetPickedItemLink( ii );
// Remove all pads/drawings/texts, as they become invalid
// for the VIEW after SwapItemData() called for footprints
view->Remove( item );
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connectivity->Remove( item );
item->SwapItemData( image );
if( PCB_GROUP* group = dynamic_cast<PCB_GROUP*>( item ) )
{
group->RunOnChildren( [&]( BOARD_ITEM* child )
{
child->SetParentGroup( group );
} );
}
view->Add( item );
view->Hide( item, false );
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connectivity->Add( item );
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item->GetBoard()->OnItemChanged( item );
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break;
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}
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case UNDO_REDO::NEWITEM: /* new items are deleted */
aList->SetPickedItemStatus( UNDO_REDO::DELETED, ii );
GetModel()->Remove( (BOARD_ITEM*) eda_item );
if( eda_item->Type() != PCB_NETINFO_T )
view->Remove( eda_item );
break;
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case UNDO_REDO::DELETED: /* deleted items are put in List, as new items */
aList->SetPickedItemStatus( UNDO_REDO::NEWITEM, ii );
GetModel()->Add( (BOARD_ITEM*) eda_item );
if( eda_item->Type() != PCB_NETINFO_T )
view->Add( eda_item );
break;
case UNDO_REDO::REGROUP: /* grouped items are ungrouped */
aList->SetPickedItemStatus( UNDO_REDO::UNGROUP, ii );
if( BOARD_ITEM* boardItem = dynamic_cast<BOARD_ITEM*>( eda_item ) )
{
if( PCB_GROUP* group = boardItem->GetParentGroup() )
{
if( !aList->GetPickedItemLink( ii ) )
aList->SetPickedItemLink( group->Clone(), ii );
group->RemoveItem( boardItem );
}
}
break;
case UNDO_REDO::UNGROUP: /* ungrouped items are re-added to their previuos groups */
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aList->SetPickedItemStatus( UNDO_REDO::REGROUP, ii );
if( BOARD_ITEM* boardItem = dynamic_cast<BOARD_ITEM*>( eda_item ) )
{
PCB_GROUP* group = nullptr;
// The link is just a clone of the original parent group; we need to look up
// the UUID in the document to find the real parent.
if( EDA_ITEM* link = aList->GetPickedItemLink( ii ) )
group = dynamic_cast<PCB_GROUP*>( GetBoard()->GetItem( link->m_Uuid ) );
if( group )
group->AddItem( boardItem );
}
break;
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case UNDO_REDO::DRILLORIGIN:
case UNDO_REDO::GRIDORIGIN:
{
// Warning: DRILLORIGIN and GRIDORIGIN undo/redo command create EDA_ITEMs
// that cannot be casted to BOARD_ITEMs
EDA_ITEM* image = aList->GetPickedItemLink( ii );
VECTOR2D origin = image->GetPosition();
image->SetPosition( eda_item->GetPosition() );
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if( aList->GetPickedItemStatus( ii ) == UNDO_REDO::DRILLORIGIN )
BOARD_EDITOR_CONTROL::DoSetDrillOrigin( view, this, eda_item, origin );
else
PCB_CONTROL::DoSetGridOrigin( view, this, eda_item, origin );
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break;
}
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case UNDO_REDO::PAGESETTINGS:
{
// swap current settings with stored settings
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DS_PROXY_UNDO_ITEM alt_item( this );
DS_PROXY_UNDO_ITEM* item = static_cast<DS_PROXY_UNDO_ITEM*>( eda_item );
item->Restore( this );
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*item = std::move( alt_item );
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break;
}
default:
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wxFAIL_MSG( wxString::Format( wxT( "PutDataInPreviousState() error (unknown code %X)" ),
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aList->GetPickedItemStatus( ii ) ) );
break;
}
}
if( not_found )
wxMessageBox( _( "Incomplete undo/redo operation: some items not found" ) );
if( IsType( FRAME_PCB_EDITOR ) )
{
if( reBuild_ratsnest || deep_reBuild_ratsnest )
Compile_Ratsnest( false );
if( solder_mask_dirty )
HideSolderMask();
}
PCB_SELECTION_TOOL* selTool = m_toolManager->GetTool<PCB_SELECTION_TOOL>();
selTool->RebuildSelection();
GetBoard()->SanitizeNetcodes();
}
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void PCB_BASE_EDIT_FRAME::ClearUndoORRedoList( UNDO_REDO_LIST whichList, int aItemCount )
{
if( aItemCount == 0 )
return;
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UNDO_REDO_CONTAINER& list = whichList == UNDO_LIST ? m_undoList : m_redoList;
unsigned icnt = list.m_CommandsList.size();
if( aItemCount > 0 )
icnt = aItemCount;
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for( unsigned ii = 0; ii < icnt; ii++ )
{
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if( list.m_CommandsList.size() == 0 )
break;
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PICKED_ITEMS_LIST* curr_cmd = list.m_CommandsList[0];
list.m_CommandsList.erase( list.m_CommandsList.begin() );
ClearListAndDeleteItems( curr_cmd );
delete curr_cmd; // Delete command
}
}
void PCB_BASE_EDIT_FRAME::ClearListAndDeleteItems( PICKED_ITEMS_LIST* aList )
{
aList->ClearListAndDeleteItems(
[]( EDA_ITEM* item )
{
if( BOARD_ITEM* boardItem = dynamic_cast<BOARD_ITEM*>( item ) )
boardItem->SetParentGroup( nullptr );
delete item;
} );
}
void PCB_BASE_EDIT_FRAME::RollbackFromUndo()
{
PICKED_ITEMS_LIST* undo = PopCommandFromUndoList();
PutDataInPreviousState( undo );
ClearListAndDeleteItems( undo );
delete undo;
GetCanvas()->Refresh();
}