363 lines
12 KiB
C++
363 lines
12 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) 2004-2019 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 <fctsys.h>
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#include <sch_draw_panel.h>
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#include <sch_edit_frame.h>
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#include <tool/tool_manager.h>
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#include <general.h>
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#include <sch_bus_entry.h>
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#include <sch_marker.h>
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#include <sch_junction.h>
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#include <sch_line.h>
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#include <sch_no_connect.h>
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#include <sch_component.h>
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#include <sch_sheet.h>
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#include <sch_bitmap.h>
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#include <sch_view.h>
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#include <tools/ee_selection_tool.h>
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/* Functions to undo and redo edit commands.
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* commands to undo are stored in CurrentScreen->m_UndoList
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* commands to redo are stored in CurrentScreen->m_RedoList
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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 in GetDrawItems() list, and in
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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_ITEM* aItem,
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UNDO_REDO_T aCommandType,
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bool aAppend,
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const wxPoint& aTransformPoint )
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{
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PICKED_ITEMS_LIST* commandToUndo = NULL;
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if( aItem == NULL )
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return;
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// Connectivity may change
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aItem->SetConnectivityDirty();
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if( aAppend )
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commandToUndo = GetScreen()->PopCommandFromUndoList();
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if( !commandToUndo )
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{
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commandToUndo = new PICKED_ITEMS_LIST();
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commandToUndo->m_TransformPoint = aTransformPoint;
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}
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ITEM_PICKER itemWrapper( 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 UR_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 UR_NEW:
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case UR_DELETED:
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case UR_ROTATED:
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case UR_MOVED:
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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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GetScreen()->PushCommandToUndoList( commandToUndo );
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/* Clear redo list, because after new save there is no redo to do */
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GetScreen()->ClearUndoORRedoList( GetScreen()->m_RedoList );
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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_T aTypeCommand,
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bool aAppend,
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const wxPoint& aTransformPoint )
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{
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PICKED_ITEMS_LIST* commandToUndo = NULL;
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if( !aItemsList.GetCount() )
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return;
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// Can't append a WIRE IMAGE, so fail to a new undo point
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if( aAppend )
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commandToUndo = GetScreen()->PopCommandFromUndoList();
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if( !commandToUndo )
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{
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commandToUndo = new PICKED_ITEMS_LIST();
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commandToUndo->m_TransformPoint = aTransformPoint;
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commandToUndo->m_Status = aTypeCommand;
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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* item = (SCH_ITEM*) commandToUndo->GetPickedItem( ii );
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wxASSERT( item );
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// Connectivity may change
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item->SetConnectivityDirty();
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UNDO_REDO_T command = commandToUndo->GetPickedItemStatus( ii );
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if( command == UR_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 UR_CHANGED: /* Create a copy of item */
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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 ) == NULL )
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commandToUndo->SetPickedItemLink( item->Duplicate( true ), ii );
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wxASSERT( commandToUndo->GetPickedItemLink( ii ) );
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break;
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case UR_MOVED:
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case UR_MIRRORED_Y:
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case UR_MIRRORED_X:
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case UR_ROTATED:
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case UR_NEW:
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case UR_DELETED:
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case UR_EXCHANGE_T:
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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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GetScreen()->PushCommandToUndoList( commandToUndo );
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/* Clear redo list, because after new save there is no redo to do */
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GetScreen()->ClearUndoORRedoList( GetScreen()->m_RedoList );
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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, bool aRedoCommand )
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{
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SCH_ITEM* item;
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SCH_ITEM* alt_item;
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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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for( int ii = aList->GetCount() - 1; ii >= 0; ii-- )
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{
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UNDO_REDO_T status = aList->GetPickedItemStatus((unsigned) ii );
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item = (SCH_ITEM*) aList->GetPickedItem( (unsigned) ii );
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alt_item = (SCH_ITEM*) aList->GetPickedItemLink( (unsigned) ii );
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item->SetFlags( aList->GetPickerFlags( (unsigned) ii ) );
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item->ClearEditFlags();
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item->ClearTempFlags();
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if( status == UR_NEW )
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{
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// new items are deleted on undo
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RemoveFromScreen( item );
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aList->SetPickedItemStatus( UR_DELETED, (unsigned) ii );
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}
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else if (status == UR_DELETED )
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{
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// deleted items are re-inserted on undo
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AddToScreen( item );
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aList->SetPickedItemStatus( UR_NEW, (unsigned) ii );
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}
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else
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{
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// everthing else is modified in place
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RemoveFromScreen( item );
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switch( status )
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{
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case UR_CHANGED:
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item->SwapData( alt_item );
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break;
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case UR_MOVED:
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item->Move( aRedoCommand ? aList->m_TransformPoint : -aList->m_TransformPoint );
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break;
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case UR_MIRRORED_Y:
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item->MirrorY( aList->m_TransformPoint.x );
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break;
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case UR_MIRRORED_X:
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item->MirrorX( aList->m_TransformPoint.y );
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break;
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case UR_ROTATED:
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if( aRedoCommand )
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item->Rotate( aList->m_TransformPoint );
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else
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{
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// Rotate 270 deg to undo 90-deg rotate
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item->Rotate( aList->m_TransformPoint );
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item->Rotate( aList->m_TransformPoint );
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item->Rotate( aList->m_TransformPoint );
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}
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break;
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case UR_EXCHANGE_T:
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alt_item->SetNext( NULL );
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alt_item->SetBack( NULL );
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aList->SetPickedItem( alt_item, (unsigned) ii );
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aList->SetPickedItemLink( item, (unsigned) ii );
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item = alt_item;
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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( (unsigned) ii ) ) );
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break;
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}
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AddToScreen( item );
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}
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}
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EE_SELECTION_TOOL* selTool = m_toolManager->GetTool<EE_SELECTION_TOOL>();
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selTool->RebuildSelection();
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// Bitmaps are cached in Opengl: clear the cache, because
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// the cache data can be invalid
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GetCanvas()->GetView()->RecacheAllItems();
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GetCanvas()->GetView()->ClearHiddenFlags();
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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 = GetScreen()->PopCommandFromUndoList();
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PutDataInPreviousState( undo, false );
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undo->ClearListAndDeleteItems();
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delete undo;
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SetSheetNumberAndCount();
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TestDanglingEnds();
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SyncView();
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GetCanvas()->Refresh();
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}
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