kicad/pcbnew/board_undo_redo.cpp

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/*************************************************************/
/* board editor: undo and redo functions for board editor */
/*************************************************************/
#include "fctsys.h"
#include "common.h"
#include "class_drawpanel.h"
#include "pcbnew.h"
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#include "wxPcbStruct.h"
/* Functions to undo and redo edit commands.
* commmands to undo are stored in CurrentScreen->m_UndoList
* commmands 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
* and 3 cases for block:
* - move list of items
* - mirror (Y) list of items
* - Flip list of items
*
* 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 undoed without memorise items, just the coordiantes 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.
*
*/
BOARD_ITEM* DuplicateStruct( BOARD_ITEM* aItem );
/**
* Function TestForExistingItem
* test if aItem exists somewhere in lists of items
* This is a function unsed by PutDataInPreviousState to be sure an item was not deleted
* since an undo or redo.
* This could be possible:
* - 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 function avoids a pcbnew crash
* @param aPcb = board to test
* @param aItem = item to find
*/
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static bool TestForExistingItem( BOARD* aPcb, BOARD_ITEM* aItem )
{
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BOARD_ITEM* item;
// search in tracks:
for( item = aPcb->m_Track; item != NULL; item = item->Next() )
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if( item == aItem )
return true;
// search in modules:
for( item = aPcb->m_Modules; item != NULL; item = item->Next() )
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if( item == aItem )
return true;
// Search in drawings
for( item = aPcb->m_Drawings; item != NULL; item = item->Next() )
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if( item == aItem )
return true;
// Search in zones outlines
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for( int ii = 0; ii < aPcb->GetAreaCount(); ii++ )
if( aPcb->GetArea( ii ) == aItem )
return true;
// search in zones segm:
for( item = aPcb->m_Zone; item != NULL; item = item->Next() )
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if( item == aItem )
return true;
return false;
}
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/**************************************************************/
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void SwapData( BOARD_ITEM* aItem, BOARD_ITEM* aImage )
/***************************************************************/
/**
* Function SwapData
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* Used in undo / redo command:
* swap data between Item and a copy
* swapped data is data modified by edition, mainly sizes and texts
* so ONLY FEW values are swapped
* @param aItem = the item
* @param aImage = a copy of the item
*/
{
if( aItem == NULL || aImage == NULL )
{
wxMessageBox( wxT( "SwapData error: NULL pointer" ) );
return;
}
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// Swap layers:
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if( aItem->Type() != TYPE_MODULE && aItem->Type() != TYPE_ZONE_CONTAINER ) // these items have a global swap function
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{
int layer, layerimg;
layer = aItem->GetLayer();
layerimg = aImage->GetLayer();
aItem->SetLayer( layerimg );
aImage->SetLayer( layer );
}
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switch( aItem->Type() )
{
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case TYPE_MODULE:
{
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MODULE* tmp = (MODULE*) DuplicateStruct( aImage );
( (MODULE*) aImage )->Copy( (MODULE*) aItem );
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( (MODULE*) aItem )->Copy( tmp );
delete tmp;
}
break;
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case TYPE_ZONE_CONTAINER:
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{
ZONE_CONTAINER* tmp = (ZONE_CONTAINER*) DuplicateStruct( aImage );
( (ZONE_CONTAINER*) aImage )->Copy( (ZONE_CONTAINER*) aItem );
( (ZONE_CONTAINER*) aItem )->Copy( tmp );
delete tmp;
}
break;
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case TYPE_DRAWSEGMENT:
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EXCHG( ( (DRAWSEGMENT*) aItem )->m_Start, ( (DRAWSEGMENT*) aImage )->m_Start );
EXCHG( ( (DRAWSEGMENT*) aItem )->m_End, ( (DRAWSEGMENT*) aImage )->m_End );
EXCHG( ( (DRAWSEGMENT*) aItem )->m_Width, ( (DRAWSEGMENT*) aImage )->m_Width );
EXCHG( ( (DRAWSEGMENT*) aItem )->m_Shape, ( (DRAWSEGMENT*) aImage )->m_Shape );
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break;
case TYPE_TRACK:
case TYPE_VIA:
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{
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TRACK* track = (TRACK*) aItem;
TRACK* image = (TRACK*) aImage;
EXCHG( track->m_Start, image->m_Start );
EXCHG( track->m_End, image->m_End );
EXCHG( track->m_Width, image->m_Width );
EXCHG( track->m_Shape, image->m_Shape );
int atmp = track->GetDrillValue();
if( track->IsDrillDefault() )
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atmp = -1;
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int itmp = image->GetDrillValue();
if( image->IsDrillDefault() )
itmp = -1;
EXCHG(itmp, atmp );
if( atmp > 0 )
track->SetDrillValue( atmp );
else
track->SetDrillDefault();
if( itmp > 0 )
image->SetDrillValue( itmp );
else
image->SetDrillDefault();
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}
break;
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case TYPE_TEXTE:
EXCHG( ( (TEXTE_PCB*) aItem )->m_Mirror, ( (TEXTE_PCB*) aImage )->m_Mirror );
EXCHG( ( (TEXTE_PCB*) aItem )->m_Size, ( (TEXTE_PCB*) aImage )->m_Size );
EXCHG( ( (TEXTE_PCB*) aItem )->m_Pos, ( (TEXTE_PCB*) aImage )->m_Pos );
EXCHG( ( (TEXTE_PCB*) aItem )->m_Thickness, ( (TEXTE_PCB*) aImage )->m_Thickness );
EXCHG( ( (TEXTE_PCB*) aItem )->m_Orient, ( (TEXTE_PCB*) aImage )->m_Orient );
EXCHG( ( (TEXTE_PCB*) aItem )->m_Text, ( (TEXTE_PCB*) aImage )->m_Text );
EXCHG( ( (TEXTE_PCB*) aItem )->m_Italic, ( (TEXTE_PCB*) aImage )->m_Italic );
EXCHG( ( (TEXTE_PCB*) aItem )->m_Bold, ( (TEXTE_PCB*) aImage )->m_Bold );
EXCHG( ( (TEXTE_PCB*) aItem )->m_HJustify, ( (TEXTE_PCB*) aImage )->m_HJustify );
EXCHG( ( (TEXTE_PCB*) aItem )->m_VJustify, ( (TEXTE_PCB*) aImage )->m_VJustify );
break;
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case TYPE_MIRE:
EXCHG( ( (MIREPCB*) aItem )->m_Pos, ( (MIREPCB*) aImage )->m_Pos );
EXCHG( ( (MIREPCB*) aItem )->m_Width, ( (MIREPCB*) aImage )->m_Width );
EXCHG( ( (MIREPCB*) aItem )->m_Size, ( (MIREPCB*) aImage )->m_Size );
EXCHG( ( (MIREPCB*) aItem )->m_Shape, ( (MIREPCB*) aImage )->m_Shape );
break;
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case TYPE_DIMENSION:
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{
wxString txt = ( (DIMENSION*) aItem )->GetText();
( (DIMENSION*) aItem )->SetText( ( (DIMENSION*) aImage )->GetText() );
( (DIMENSION*) aImage )->SetText( txt );
EXCHG( ( (DIMENSION*) aItem )->m_Width, ( (DIMENSION*) aImage )->m_Width );
EXCHG( ( (DIMENSION*) aItem )->m_Text->m_Size, ( (DIMENSION*) aImage )->m_Text->m_Size );
EXCHG( ( (DIMENSION*) aItem )->m_Text->m_Thickness, ( (DIMENSION*) aImage )->m_Text->m_Thickness );
EXCHG( ( (DIMENSION*) aItem )->m_Text->m_Mirror, ( (DIMENSION*) aImage )->m_Text->m_Mirror );
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}
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break;
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case TYPE_ZONE:
default:
wxMessageBox( wxT( "SwapData() error: unexpected type" ) );
break;
}
}
/************************************************************/
BOARD_ITEM* DuplicateStruct( BOARD_ITEM* aItem )
/************************************************************/
/* Routine to create a new copy of given struct.
* The new object is not put in list (not linked)
*/
{
if( aItem == NULL )
{
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wxMessageBox( wxT( "DuplicateStruct() error: NULL aItem" ) );
return NULL;
}
switch( aItem->Type() )
{
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case TYPE_MODULE:
{
MODULE* new_module;
new_module = new MODULE( (BOARD*) aItem->GetParent() );
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new_module->Copy( (MODULE*) aItem );
return new_module;
}
case TYPE_TRACK:
{
TRACK* new_track = ( (TRACK*) aItem )->Copy();
return new_track;
}
case TYPE_VIA:
{
SEGVIA* new_via = (SEGVIA*)( (SEGVIA*) aItem )->Copy();
return new_via;
}
case TYPE_ZONE:
{
SEGZONE* new_segzone = (SEGZONE*)( (SEGZONE*) aItem )->Copy();
return new_segzone;
}
case TYPE_ZONE_CONTAINER:
{
ZONE_CONTAINER* new_zone = new ZONE_CONTAINER( (BOARD*) aItem->GetParent() );
new_zone->Copy( (ZONE_CONTAINER*) aItem );
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return new_zone;
}
case TYPE_DRAWSEGMENT:
{
DRAWSEGMENT* new_drawsegment = new DRAWSEGMENT( aItem->GetParent() );
new_drawsegment->Copy( (DRAWSEGMENT*) aItem );
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return new_drawsegment;
}
break;
case TYPE_TEXTE:
{
TEXTE_PCB* new_pcbtext = new TEXTE_PCB( aItem->GetParent() );
new_pcbtext->Copy( (TEXTE_PCB*) aItem );
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return new_pcbtext;
}
break;
case TYPE_MIRE:
{
MIREPCB* new_mire = new MIREPCB( aItem->GetParent() );
new_mire->Copy( (MIREPCB*) aItem );
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return new_mire;
}
break;
case TYPE_DIMENSION:
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{
DIMENSION* new_cotation = new DIMENSION( aItem->GetParent() );
new_cotation->Copy( (DIMENSION*) aItem );
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return new_cotation;
}
break;
default:
{
wxString msg;
msg << wxT( "DuplicateStruct error: unexpected StructType " ) <<
aItem->Type() << wxT( " " ) << aItem->GetClass();
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wxMessageBox( msg );
}
break;
}
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return NULL;
}
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/*
* Function SaveCopyInUndoList
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* Create a copy of the current board item, and put it in the undo list.
*
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* aCommandType =
* UR_CHANGED
* UR_NEW
* UR_DELETED
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* UR_MOVED
* UR_FLIPPED
* UR_ROTATED
*/
void WinEDA_PcbFrame::SaveCopyInUndoList( BOARD_ITEM* aItem,
UndoRedoOpType aCommandType,
const wxPoint& aTransformPoint )
{
if( aItem == NULL ) // Nothing to save
return;
PICKED_ITEMS_LIST* commandToUndo = new PICKED_ITEMS_LIST();
commandToUndo->m_TransformPoint = aTransformPoint;
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ITEM_PICKER itemWrapper( aItem, aCommandType );
itemWrapper.m_PickedItemType = aItem->Type();
switch( aCommandType )
{
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case UR_CHANGED: /* Create a copy of schematic */
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if( itemWrapper.m_Link == NULL ) // When not null, the copy is already done
itemWrapper.m_Link = DuplicateStruct( aItem );;
if( itemWrapper.m_Link )
commandToUndo->PushItem( itemWrapper );
break;
case UR_NEW:
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case UR_MOVED:
case UR_FLIPPED:
case UR_ROTATED:
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case UR_ROTATED_CLOCKWISE:
case UR_DELETED:
commandToUndo->PushItem( itemWrapper );
break;
default:
{
wxString msg;
msg.Printf( wxT( "SaveCopyInUndoList() error (unknown code %X)" ), aCommandType );
wxMessageBox( msg );
}
break;
}
if( commandToUndo->GetCount() )
{
/* Save the copy in undo list */
GetScreen()->PushCommandToUndoList( commandToUndo );
/* Clear redo list, because after new save there is no redo to do */
GetScreen()->ClearUndoORRedoList( GetScreen()->m_RedoList );
}
else
delete commandToUndo;
}
/**
* Function SaveCopyInUndoList
* @param aItemsList = a PICKED_ITEMS_LIST of items to save
* @param aTypeCommand = type of comand ( UR_CHANGED, UR_NEW, UR_DELETED ...
* @param aTransformPoint - Transform items around this point.
*/
void WinEDA_PcbFrame::SaveCopyInUndoList( PICKED_ITEMS_LIST& aItemsList,
UndoRedoOpType aTypeCommand,
const wxPoint& aTransformPoint )
{
PICKED_ITEMS_LIST* commandToUndo = new PICKED_ITEMS_LIST();
commandToUndo->m_TransformPoint = aTransformPoint;
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// Copy picker list:
commandToUndo->CopyList( aItemsList );
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// Verify list, and creates data if needed
for( unsigned ii = 0; ii < commandToUndo->GetCount(); ii++ )
{
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BOARD_ITEM* item = (BOARD_ITEM*) commandToUndo->GetPickedItem( ii );
UndoRedoOpType command = commandToUndo->GetPickedItemStatus( ii );
if( command == UR_UNSPECIFIED )
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{
command = aTypeCommand;
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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 UR_CHANGED:
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/* If needed, create a copy of item, and put in undo list
* in the picker, as link
* If this link is not null, the copy is already done
*/
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if( commandToUndo->GetPickedItemLink( ii ) == NULL )
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commandToUndo->SetPickedItemLink( DuplicateStruct( item ), ii );
if( commandToUndo->GetPickedItemLink( ii ) == NULL )
wxMessageBox( wxT( "SaveCopyInUndoList() in UR_CHANGED mode: NULL link" ) );
break;
case UR_MOVED:
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case UR_ROTATED:
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case UR_ROTATED_CLOCKWISE:
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case UR_FLIPPED:
case UR_NEW:
case UR_DELETED:
break;
default:
{
wxString msg;
msg.Printf( wxT( "SaveCopyInUndoList() error (unknown code %X)" ), command );
wxMessageBox( msg );
}
break;
}
}
if( commandToUndo->GetCount() )
{
/* Save the copy in undo list */
GetScreen()->PushCommandToUndoList( commandToUndo );
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/* Clear redo list, because after a new command one cannot redo a command */
GetScreen()->ClearUndoORRedoList( GetScreen()->m_RedoList );
}
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else // Should not occur
delete commandToUndo;
}
/**
* Function PutDataInPreviousState
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* Used in undo or redo command.
* Put data pointed by List in the previous state, i.e. the state memorised by List
* @param aList = a PICKED_ITEMS_LIST pointer to the list of items to undo/redo
* @param aRedoCommand = a bool: true for redo, false for undo
* @param aRebuildRatsnet = a bool: true to rebuid ratsnet (normal use, and default), false
* to just retrieve las state (used in abort commands that do not need to rebuild ratsnest)
*/
void WinEDA_PcbFrame::PutDataInPreviousState( PICKED_ITEMS_LIST* aList, bool aRedoCommand, bool aRebuildRatsnet )
{
BOARD_ITEM* item;
bool not_found = false;
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bool reBuild_ratsnest = false;
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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
for( int ii = aList->GetCount()-1; ii >= 0 ; ii-- )
{
item = (BOARD_ITEM*) aList->GetPickedItem( ii );
wxASSERT( item );
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#if 1
if( aList->GetPickedItemStatus( ii ) != UR_DELETED )
{
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if( !TestForExistingItem( GetBoard(), item ) )
{
// Remove this non existant item
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aList->RemovePicker( ii );
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ii++; // the current item was removed, ii points now the next item
// whe must decrement it because it will be incremented
not_found = true;
continue;
}
}
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#endif
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item->m_Flags = 0;
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// see if we must rebuild ratsnets and pointers lists
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switch( item->Type() )
{
case TYPE_MODULE:
case TYPE_ZONE_CONTAINER:
case TYPE_TRACK:
case TYPE_VIA:
reBuild_ratsnest = true;
break;
default:
break;
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}
switch( aList->GetPickedItemStatus( ii ) )
{
case UR_CHANGED: /* Exchange old and new data for each item */
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{
BOARD_ITEM* image = (BOARD_ITEM*) aList->GetPickedItemLink( ii );
SwapData( item, image );
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}
break;
case UR_NEW: /* new items are deleted */
aList->SetPickedItemStatus( UR_DELETED, ii );
GetBoard()->Remove( item );
break;
case UR_DELETED: /* deleted items are put in List, as new items */
aList->SetPickedItemStatus( UR_NEW, ii );
GetBoard()->Add( item );
break;
case UR_MOVED:
item->Move( aRedoCommand ? aList->m_TransformPoint : -aList->m_TransformPoint );
break;
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case UR_ROTATED:
item->Rotate( aList->m_TransformPoint, aRedoCommand ? 900 : -900 );
break;
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case UR_ROTATED_CLOCKWISE:
item->Rotate( aList->m_TransformPoint, aRedoCommand ? -900 : 900 );
break;
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case UR_FLIPPED:
item->Flip( aList->m_TransformPoint );
break;
default:
{
wxString msg;
msg.Printf( wxT(
"PutDataInPreviousState() error (unknown code %X)" ),
aList->GetPickedItemStatus( ii ) );
wxMessageBox( msg );
}
break;
}
}
if( not_found )
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wxMessageBox( wxT( "Incomplete undo/redo operation: some items not found" ) );
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// Rebuild pointers and rastnest that can be changed.
if( reBuild_ratsnest && aRebuildRatsnet )
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Compile_Ratsnest( NULL, true );
}
/**********************************************************/
void WinEDA_PcbFrame::GetBoardFromUndoList( wxCommandEvent& event )
/**********************************************************/
/**
* Function GetBoardFromUndoList
* Undo the last edition:
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* - Save the current board state in Redo list
* - Get an old version of the board state from Undo list
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* @return none
*/
{
if( GetScreen()->GetUndoCommandCount() <= 0 )
return;
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/* Get the old list */
PICKED_ITEMS_LIST* List = GetScreen()->PopCommandFromUndoList();
/* Undo the command */
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PutDataInPreviousState( List, false );
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/* Put the old list in RedoList */
List->ReversePickersListOrder();
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GetScreen()->PushCommandToRedoList( List );
OnModify();
ReCreateHToolbar();
SetToolbars();
DrawPanel->Refresh();
}
/**
* Function GetBoardFromRedoList
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* Redo the last edition:
* - Save the current board in Undo list
* - Get an old version of the board from Redo list
* @return none
*/
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void WinEDA_PcbFrame::GetBoardFromRedoList( wxCommandEvent& event )
{
if( GetScreen()->GetRedoCommandCount() == 0 )
return;
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/* Get the old list */
PICKED_ITEMS_LIST* List = GetScreen()->PopCommandFromRedoList();
/* Redo the command: */
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PutDataInPreviousState( List, true );
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/* Put the old list in UndoList */
List->ReversePickersListOrder();
GetScreen()->PushCommandToUndoList( List );
OnModify();
ReCreateHToolbar();
SetToolbars();
DrawPanel->Refresh();
}
/***********************************************************************************/
void PCB_SCREEN::ClearUndoORRedoList( UNDO_REDO_CONTAINER& aList, int aItemCount )
/**********************************************************************************/
/**
* Function ClearUndoORRedoList
* free the undo or redo list from List element
* Wrappers are deleted.
* datas pointed by wrappers are deleted if not in use in schematic
* i.e. when they are copy of a schematic item or they are no more in use (DELETED)
* @param aList = the UNDO_REDO_CONTAINER to clear
* @param aItemCount = the count of items to remove. < 0 for all items
* items (commands stored in list) are removed from the beginning of the list.
* So this function can be called to remove old commands
*/
{
if( aItemCount == 0 )
return;
unsigned icnt = aList.m_CommandsList.size();
if( aItemCount > 0 )
icnt = aItemCount;
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for( unsigned ii = 0; ii < icnt; ii++ )
{
if( aList.m_CommandsList.size() == 0 )
break;
PICKED_ITEMS_LIST* curr_cmd = aList.m_CommandsList[0];
aList.m_CommandsList.erase( aList.m_CommandsList.begin() );
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curr_cmd->ClearListAndDeleteItems();
delete curr_cmd; // Delete command
}
}