695 lines
22 KiB
C++
695 lines
22 KiB
C++
/********************************************/
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/* library editor: undo and redo functions */
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/********************************************/
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#include "fctsys.h"
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#include "gr_basic.h"
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#include "common.h"
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#include "program.h"
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#include "libcmp.h"
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#include "general.h"
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#include "id.h"
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#include "protos.h"
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/* Functions to undo and redo edit commands.
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* commmands to undo are in CurrentScreen->m_UndoList
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* commmands to redo are in CurrentScreen->m_RedoList
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*
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* m_UndoList and m_RedoList are a linked list of DrawPickedStruct.
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* each DrawPickedStruct has its .m_Son member pointing to an item to undo or redo,
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* or to a list of DrawPickedStruct which points (.m_PickedStruct membre)
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* the items to undo or redo
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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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*
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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_Image member of each wrapper points the modified item.
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*
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* - add item(s) command
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* A list of item(s) is made
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* the .m_Image member of each wrapper points 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 EEDrawList list
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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 list
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* (same as a delete command)
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*
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* A problem is the hierarchical sheet handling.
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* the data associated (subhierarchy, uno/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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* and not when it is a copy.
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*/
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/************************************/
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void SwapData( EDA_BaseStruct* Item )
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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 .m_Image member
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*/
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{
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if( Item == NULL )
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return;
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EDA_BaseStruct* image = Item->m_Image;
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if( image == NULL )
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return;
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switch( Item->Type() )
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{
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case DRAW_POLYLINE_STRUCT_TYPE:
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#undef SOURCE
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#undef DEST
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#define SOURCE ( (DrawPolylineStruct*) Item )
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#define DEST ( (DrawPolylineStruct*) image )
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break;
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case DRAW_JUNCTION_STRUCT_TYPE:
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#undef SOURCE
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#undef DEST
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#define SOURCE ( (DrawJunctionStruct*) Item )
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#define DEST ( (DrawJunctionStruct*) image )
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EXCHG( SOURCE->m_Pos, DEST->m_Pos );
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break;
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case TYPE_SCH_LABEL:
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case TYPE_SCH_GLOBALLABEL:
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case TYPE_SCH_HIERLABEL:
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case TYPE_SCH_TEXT:
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#undef SOURCE
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#undef DEST
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#define SOURCE ( (SCH_TEXT*) Item )
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#define DEST ( (SCH_TEXT*) image )
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DEST->SwapData( SOURCE );
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break;
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case TYPE_SCH_COMPONENT:
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#undef SOURCE
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#undef DEST
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#define SOURCE ( (SCH_COMPONENT*) Item )
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#define DEST ( (SCH_COMPONENT*) image )
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DEST->SwapData( SOURCE );
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break;
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case DRAW_SEGMENT_STRUCT_TYPE:
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#undef SOURCE
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#undef DEST
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#define SOURCE ( (EDA_DrawLineStruct*) Item )
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#define DEST ( (EDA_DrawLineStruct*) image )
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EXCHG( SOURCE->m_Start, DEST->m_Start );
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EXCHG( SOURCE->m_End, DEST->m_End );
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break;
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case DRAW_BUSENTRY_STRUCT_TYPE:
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#undef SOURCE
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#undef DEST
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#define SOURCE ( (DrawBusEntryStruct*) Item )
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#define DEST ( (DrawBusEntryStruct*) image )
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EXCHG( SOURCE->m_Pos, DEST->m_Pos );
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EXCHG( SOURCE->m_Size, DEST->m_Size );
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break;
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case DRAW_SHEET_STRUCT_TYPE:
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#undef SOURCE
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#undef DEST
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#define SOURCE ( (DrawSheetStruct*) Item )
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#define DEST ( (DrawSheetStruct*) image )
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DEST->SwapData( SOURCE );
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break;
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case DRAW_MARKER_STRUCT_TYPE:
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#undef SOURCE
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#undef DEST
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#define SOURCE ( (DrawMarkerStruct*) Item )
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#define DEST ( (DrawMarkerStruct*) image )
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EXCHG( SOURCE->m_Pos, DEST->m_Pos );
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break;
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case DRAW_HIERARCHICAL_PIN_SHEET_STRUCT_TYPE:
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#undef SOURCE
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#undef DEST
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#define SOURCE ( (Hierarchical_PIN_Sheet_Struct*) Item )
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#define DEST ( (Hierarchical_PIN_Sheet_Struct*) image )
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EXCHG( SOURCE->m_Edge, DEST->m_Edge );
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EXCHG( SOURCE->m_Shape, DEST->m_Shape );
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break;
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case DRAW_NOCONNECT_STRUCT_TYPE:
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#undef SOURCE
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#undef DEST
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#define SOURCE ( (DrawNoConnectStruct*) Item )
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#define DEST ( (DrawNoConnectStruct*) image )
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EXCHG( SOURCE->m_Pos, DEST->m_Pos );
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break;
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case DRAW_PART_TEXT_STRUCT_TYPE:
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#undef SOURCE
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#undef DEST
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#define SOURCE ( (DrawPolylineStruct*) Item )
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#define DEST ( (DrawPolylineStruct*) image )
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break;
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// not directly used in schematic:
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default:
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DisplayInfo( NULL, wxT( "SwapData() error: unexpected type" ) );
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break;
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}
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}
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/***********************************************************************/
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void WinEDA_SchematicFrame::SaveCopyInUndoList( SCH_ITEM * ItemToCopy,
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int flag_type_command )
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/***********************************************************************/
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/* Create a copy of the current schematic draw list, and put it in the undo list.
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* A DrawPickedStruct wrapper is created to handle the draw list.
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* the .m_Son of this wrapper points the list of items
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*
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* flag_type_command =
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* 0 (unspecified)
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* IS_CHANGED
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* IS_NEW
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* IS_DELETED
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* IS_WIRE_IMAGE
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*
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* for 0: only a wrapper is created. The used must init the .Flags member of the
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* wrapper, and add the item list to the wrapper
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* If it is a delete command, items are put on list with the .Flags member set to IS_DELETED.
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* When it will be really deleted, the EEDrawList and the subhierarchy will be deleted.
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* If it is only a copy, the EEDrawList and the subhierarchy must NOT be deleted.
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*
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* Note:
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* Edit wires and busses is a bit complex.
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* because when a new wire is added, modifications in wire list
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* (wire concatenation) there are modified items, deleted items and new items
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* so flag_type_command is IS_WIRE_IMAGE: the struct ItemToCopy is a list of wires
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* saved in Undo List (for Undo or Redo commands, saved wires will be exchanged with current wire list
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*/
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{
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SCH_ITEM* CopyItem;
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DrawPickedStruct* NewList = new DrawPickedStruct( NULL );
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NewList->m_Flags = flag_type_command;
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if( ItemToCopy )
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{
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switch( flag_type_command )
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{
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case 0:
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break;
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case IS_CHANGED: /* Create a copy of schematic */
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NewList->m_Son = CopyItem = DuplicateStruct( ItemToCopy );
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if( ItemToCopy->Type() == DRAW_PICK_ITEM_STRUCT_TYPE )
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{
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DrawPickedStruct* PickedList = (DrawPickedStruct*) CopyItem;
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while( PickedList )
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{
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CopyItem = PickedList->m_PickedStruct;
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CopyItem->m_Flags = flag_type_command;
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PickedList->m_Image = CopyItem->m_Image;
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PickedList = PickedList->Next();
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}
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}
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else
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{
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CopyItem->m_Flags = flag_type_command;
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CopyItem->m_Image = ItemToCopy;
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}
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break;
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case IS_NEW:
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if( ItemToCopy->Type() == DRAW_PICK_ITEM_STRUCT_TYPE )
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{
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NewList->m_Son = ItemToCopy;
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DrawPickedStruct* PickedList = (DrawPickedStruct*) ItemToCopy;
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while( PickedList )
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{
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CopyItem = PickedList->m_PickedStruct;
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PickedList->m_Image = CopyItem;
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PickedList->m_PickedStruct = NULL;
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PickedList->m_Flags = flag_type_command;
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PickedList = PickedList->Next();
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}
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}
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else
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{
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NewList->m_Image = ItemToCopy;
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}
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break;
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case IS_NEW | IS_CHANGED:
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case IS_WIRE_IMAGE:
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NewList->m_Son = ItemToCopy;
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break;
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case IS_DELETED:
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NewList->m_Son = ItemToCopy;
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ItemToCopy->m_Flags = flag_type_command;
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if( ItemToCopy->Type() == DRAW_PICK_ITEM_STRUCT_TYPE )
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{
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DrawPickedStruct* PickedList = (DrawPickedStruct*) ItemToCopy;
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while( PickedList )
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{
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CopyItem = PickedList->m_PickedStruct;
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CopyItem->m_Flags = flag_type_command;
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PickedList->m_Flags = flag_type_command;
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PickedList = PickedList->Next();
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}
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}
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break;
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default:
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DisplayError( this, wxT( "SaveCopyInUndoList() error" ) );
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break;
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}
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}
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/* Save the copy in undo list */
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GetScreen()->AddItemToUndoList( NewList );
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/* Clear redo list, because after new save there is no redo to do */
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( (SCH_SCREEN*) GetScreen() )->ClearUndoORRedoList( GetScreen()->m_RedoList );
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GetScreen()->m_RedoList = NULL;
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}
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/**********************************************************/
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bool WinEDA_SchematicFrame::GetSchematicFromRedoList()
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/**********************************************************/
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/* Redo the last edition:
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* - Save the current schematic in undo list
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* - Get the old version
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* @return FALSE if nothing done, else TRUE
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*/
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{
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if( GetScreen()->m_RedoList == NULL )
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return FALSE;
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/* Get the old wrapper and put it in UndoList */
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DrawPickedStruct* List = (DrawPickedStruct*) GetScreen()->GetItemFromRedoList();
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GetScreen()->AddItemToUndoList( List );
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/* Redo the command: */
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PutDataInPreviousState( List );
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CurrentDrawItem = NULL;
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GetScreen()->SetModify();
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ReCreateHToolbar();
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SetToolbars();
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return TRUE;
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}
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/***************************************************************************/
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void WinEDA_SchematicFrame::PutDataInPreviousState( DrawPickedStruct* List )
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/***************************************************************************/
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/* Used in undo or redo command.
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* Put data pointed by List in the previous state, i.e. the state memorised by List
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*/
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{
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SCH_ITEM* FirstItem = (SCH_ITEM*) List->m_Son;
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SCH_ITEM* item;
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DrawPickedStruct* PickedList;
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switch( List->m_Flags )
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{
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case IS_CHANGED: /* Exchange old and new data for each item */
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if( FirstItem == NULL )
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{
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DisplayError( this, wxT( "PutDataInPreviousState() error : Null item" ) );
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break;
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}
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if( FirstItem->Type() == DRAW_PICK_ITEM_STRUCT_TYPE )
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{
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DrawPickedStruct* PickedList = (DrawPickedStruct*) FirstItem;
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while( PickedList )
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{
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SwapData( PickedList->m_PickedStruct );
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PickedList = PickedList->Next();
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}
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}
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else
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{
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SwapData( FirstItem );
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}
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break;
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case IS_NEW: /* new items are deleted */
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List->m_Flags = IS_DELETED;
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if( FirstItem && FirstItem->Type() == DRAW_PICK_ITEM_STRUCT_TYPE )
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{
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PickedList = (DrawPickedStruct*) FirstItem;
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while( PickedList )
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{
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item = (SCH_ITEM*) PickedList->m_Image;
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( (SCH_SCREEN*) GetScreen() )->RemoveFromDrawList( item );
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item->m_Flags = IS_DELETED;
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PickedList->m_PickedStruct = item;
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PickedList->m_Flags = IS_DELETED;
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PickedList = PickedList->Next();
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}
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}
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else
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{
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FirstItem = (SCH_ITEM*)List->m_Image;
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( (SCH_SCREEN*) GetScreen() )->RemoveFromDrawList( FirstItem );
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FirstItem->m_Flags = IS_DELETED;
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List->m_Son = FirstItem;
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}
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break;
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case IS_DELETED: /* deleted items are put in EEdrawList, as new items */
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List->m_Flags = IS_NEW;
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if( FirstItem->Type() == DRAW_PICK_ITEM_STRUCT_TYPE )
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{
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PickedList = (DrawPickedStruct*) FirstItem;
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while( PickedList )
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{
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item = PickedList->m_PickedStruct;
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item->Pnext = GetScreen()->EEDrawList;
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GetScreen()->EEDrawList = item;
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item->m_Flags = 0;
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PickedList->m_PickedStruct = NULL;
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PickedList->m_Image = item;
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PickedList->m_Flags = IS_NEW;
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PickedList = PickedList->Next();
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}
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}
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else
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{
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FirstItem->Pnext = GetScreen()->EEDrawList;
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GetScreen()->EEDrawList = FirstItem;
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FirstItem->m_Flags = 0;
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List->m_Image = List->m_Son;
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List->m_Son = NULL;
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}
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break;
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case IS_WIRE_IMAGE:
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/* Exchange the current wires and the oild wires */
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List->m_Son = ( (SCH_SCREEN*) GetScreen() )->ExtractWires( FALSE );
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while( FirstItem )
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{
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SCH_ITEM* nextitem = FirstItem->Next();
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FirstItem->Pnext = GetScreen()->EEDrawList;
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GetScreen()->EEDrawList = FirstItem;
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FirstItem->m_Flags = 0;
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FirstItem = nextitem;
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}
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break;
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case IS_NEW | IS_CHANGED:
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case IS_DELETED | IS_CHANGED:
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if( !FirstItem || FirstItem->Type() != DRAW_PICK_ITEM_STRUCT_TYPE )
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{
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DisplayError( this, wxT( "GetSchematicFromUndoList() error: Pickstruct expected" ) );
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break;
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}
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PickedList = (DrawPickedStruct*) FirstItem;
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while( PickedList )
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{
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switch( PickedList->m_Flags )
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{
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case IS_CHANGED:
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SwapData( PickedList->m_PickedStruct );
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break;
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case IS_NEW:
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item = (SCH_ITEM*) PickedList->m_Image;
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( (SCH_SCREEN*) GetScreen() )->RemoveFromDrawList( item );
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item->m_Flags = IS_DELETED;
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PickedList->m_PickedStruct = item;
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PickedList->m_Flags = IS_DELETED;
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break;
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case IS_DELETED:
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item = PickedList->m_PickedStruct;
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item->Pnext = GetScreen()->EEDrawList;
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GetScreen()->EEDrawList = item;
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item->m_Flags = 0;
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PickedList->m_PickedStruct = NULL;
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PickedList->m_Image = item;
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PickedList->m_Flags = IS_NEW;
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break;
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}
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PickedList = PickedList->Next();
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}
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break;
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default:
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DisplayError( this, wxT( "GetSchematicFromUndoList() error: Unknown cmd" ) );
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break;
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}
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}
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/**********************************************************/
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bool WinEDA_SchematicFrame::GetSchematicFromUndoList()
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/**********************************************************/
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/* Undo the last edition:
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* - Save the current schematic in Redo list
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* - Get an old version of the schematic
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* @return FALSE if nothing done, else TRUE
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*/
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{
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if( GetScreen()->m_UndoList == NULL )
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return FALSE;
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/* Get the old wrapper and put it in RedoList (the real data list is the m_Son member) */
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DrawPickedStruct* List = (DrawPickedStruct*) GetScreen()->GetItemFromUndoList();
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GetScreen()->AddItemToRedoList( List );
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/* Undo the command */
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PutDataInPreviousState( List );
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CurrentDrawItem = NULL;
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GetScreen()->SetModify();
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ReCreateHToolbar();
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SetToolbars();
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return TRUE;
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}
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/*********************************************************/
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void SCH_SCREEN::ClearUndoORRedoList( EDA_BaseStruct* List )
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/*********************************************************/
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/* free the undo or redo list from List element
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* Wrappers are deleted.
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* datas pointed by wrappers are deleted if not flagged IS_NEW
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* because they are copy of used data or they are not in use (DELETED)
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*/
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{
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EDA_BaseStruct* nextitem;
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EDA_BaseStruct* FirstItem;
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int CmdType;
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if( List == NULL )
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return;
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for( ; List != NULL; List = nextitem )
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{
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nextitem = List->Pnext;
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FirstItem = List->m_Son;
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CmdType = List->m_Flags;
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SAFE_DELETE( List );
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if( FirstItem == NULL )
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continue;
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if( FirstItem->Type() == DRAW_PICK_ITEM_STRUCT_TYPE )
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{
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EDA_BaseStruct* item;
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DrawPickedStruct* PickedList = (DrawPickedStruct*) FirstItem;
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while( PickedList ) // delete wrapper list and copies
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{
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item = PickedList->m_PickedStruct;
|
|
if( item )
|
|
{
|
|
#if 0
|
|
if( item->Type() == DRAW_SHEET_STRUCT_TYPE )
|
|
{
|
|
printf(
|
|
"schematic undo_redo.cpp: undo_redo with a DRAW_SHEET_STRUCT_TYPE, checkme!!\n" );
|
|
DrawSheetStruct* sheet = (DrawSheetStruct*) item;
|
|
/* Delete sub hierarchy if the sheet must be deleted */
|
|
if( (sheet->m_Flags & IS_DELETED) != 0 )
|
|
DeleteSubHierarchy( sheet, FALSE );
|
|
else /* EEDrawList, UndoList and Redo list are shared, and are deleted
|
|
* only if sheet is deleted */
|
|
{
|
|
if( (item->m_Flags & IS_NEW) == 0 )
|
|
{
|
|
|
|
/*
|
|
* sheet->EEDrawList = NULL;
|
|
* sheet->m_UndoList = NULL;
|
|
* sheet->m_RedoList = NULL;
|
|
*/
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
if( (item->m_Flags & IS_NEW) == 0 )
|
|
{
|
|
SAFE_DELETE( item );
|
|
}
|
|
}
|
|
DrawPickedStruct* wrapper = PickedList;
|
|
PickedList = PickedList->Next();
|
|
SAFE_DELETE( wrapper );
|
|
}
|
|
}
|
|
else // This is a single item: deleted copy
|
|
{
|
|
if( CmdType == IS_WIRE_IMAGE )
|
|
{
|
|
while( FirstItem )
|
|
{
|
|
EDA_BaseStruct* nextitem = FirstItem->Pnext;
|
|
delete FirstItem;
|
|
FirstItem = nextitem;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
#if 0
|
|
if( FirstItem->Type() == DRAW_SHEET_STRUCT_TYPE )
|
|
{
|
|
DrawSheetStruct* sheet = (DrawSheetStruct*) FirstItem;
|
|
/* Delete hierarchy if the sheet must be deleted */
|
|
if( (sheet->m_Flags & IS_DELETED) == IS_DELETED )
|
|
DeleteSubHierarchy( sheet, FALSE );
|
|
else
|
|
{
|
|
if( (FirstItem->m_Flags & IS_NEW) == 0 )
|
|
{
|
|
printf(
|
|
"schematic undo_redo.cpp undo_redo with a DRAW_SHEET_STRUCT_TYPE, checkme!!\n" );
|
|
|
|
/*
|
|
* sheet->EEDrawList = NULL;
|
|
* sheet->m_UndoList = NULL;
|
|
* sheet->m_RedoList = NULL;
|
|
*/
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
if( (FirstItem->m_Flags & IS_NEW) == 0 )
|
|
{
|
|
SAFE_DELETE( FirstItem );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*****************************************/
|
|
void SCH_SCREEN::ClearUndoRedoList()
|
|
/*****************************************/
|
|
|
|
/* free the undo and the redo lists
|
|
*/
|
|
{
|
|
ClearUndoORRedoList( m_UndoList ); m_UndoList = NULL;
|
|
ClearUndoORRedoList( m_RedoList ); m_RedoList = NULL;
|
|
}
|
|
|
|
|
|
/***********************************************************/
|
|
void SCH_SCREEN::AddItemToUndoList( EDA_BaseStruct* newitem )
|
|
/************************************************************/
|
|
|
|
/* Put newitem in head of undo list
|
|
* Deletes olds items if > count max.
|
|
*/
|
|
{
|
|
int ii;
|
|
EDA_BaseStruct* item, * nextitem;
|
|
|
|
if( newitem == NULL )
|
|
return;
|
|
|
|
if( m_UndoList )
|
|
m_UndoList->Pback = newitem;
|
|
newitem->Pnext = m_UndoList;
|
|
newitem->Pback = NULL;
|
|
m_UndoList = newitem;
|
|
|
|
/* Free oldest items, if count max reached */
|
|
for( ii = 0, item = m_UndoList; ii < m_UndoRedoCountMax; ii++ )
|
|
{
|
|
if( item->Pnext == NULL )
|
|
return;
|
|
item = item->Pnext;
|
|
}
|
|
|
|
if( item == NULL )
|
|
return;
|
|
|
|
nextitem = item->Pnext;
|
|
item->Pnext = NULL; // Set end of chain
|
|
|
|
// Delete the extra items
|
|
ClearUndoORRedoList( nextitem );
|
|
}
|
|
|
|
|
|
/***********************************************************/
|
|
void SCH_SCREEN::AddItemToRedoList( EDA_BaseStruct* newitem )
|
|
/***********************************************************/
|
|
{
|
|
int ii;
|
|
EDA_BaseStruct* item, * nextitem;
|
|
|
|
if( newitem == NULL )
|
|
return;
|
|
|
|
newitem->Pback = NULL;
|
|
newitem->Pnext = m_RedoList;
|
|
m_RedoList = newitem;
|
|
/* Free first items, if count max reached */
|
|
for( ii = 0, item = m_RedoList; ii < m_UndoRedoCountMax; ii++ )
|
|
{
|
|
if( item->Pnext == NULL )
|
|
break;
|
|
item = item->Pnext;
|
|
}
|
|
|
|
if( item == NULL )
|
|
return;
|
|
|
|
nextitem = item->Pnext;
|
|
item->Pnext = NULL; // Set end of chain
|
|
|
|
// Delete the extra items
|
|
ClearUndoORRedoList( nextitem );
|
|
}
|