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/************************************/
/* delete.cpp */
/************************************/
#include "fctsys.h"
#include "gr_basic.h"
#include "common.h"
#include "program.h"
#include "general.h"
#include "protos.h"
#include "class_marker_sch.h"
// Imported function:
void DeleteItemsInList( WinEDA_DrawPanel* panel,
PICKED_ITEMS_LIST& aItemsList );
/*
* Count number of items connected to point pos :
* pins, end wire or bus, and junctions if TstJunction == TRUE
* Return this count
*
* Used by WinEDA_SchematicFrame::DeleteConnection()
*/
static int CountConnectedItems( WinEDA_SchematicFrame* frame,
SCH_ITEM* ListStruct, wxPoint pos,
bool TstJunction )
{
SCH_ITEM* Struct;
int count = 0;
if( frame->LocatePinEnd( ListStruct, pos ) )
count++;
for( Struct = ListStruct; Struct != NULL; Struct = Struct->Next() )
{
if( Struct->m_Flags & STRUCT_DELETED )
continue;
if( Struct->m_Flags & SKIP_STRUCT )
continue;
if( TstJunction && ( Struct->Type() == DRAW_JUNCTION_STRUCT_TYPE ) )
{
#define JUNCTION ( (SCH_JUNCTION*) Struct )
if( JUNCTION->m_Pos == pos )
count++;
#undef JUNCTION
}
if( Struct->Type() != DRAW_SEGMENT_STRUCT_TYPE )
continue;
#define SEGM ( (SCH_LINE*) Struct )
if( SEGM->IsOneEndPointAt( pos ) )
count++;
#undef SEGM
}
return count;
}
/*
* Mark to "CANDIDATE" all wires or junction connected to "segment" in list
* "ListStruct"
* Search wire stop at an any pin
*
* Used by WinEDA_SchematicFrame::DeleteConnection()
*/
static bool MarkConnected( WinEDA_SchematicFrame* frame, SCH_ITEM* ListStruct,
SCH_LINE* segment )
{
EDA_BaseStruct* Struct;
for( Struct = ListStruct; Struct != NULL; Struct = Struct->Next() )
{
if( Struct->m_Flags )
continue;
if( Struct->Type() == DRAW_JUNCTION_STRUCT_TYPE )
{
#define JUNCTION ( (SCH_JUNCTION*) Struct )
if( segment->IsOneEndPointAt( JUNCTION->m_Pos ) )
Struct->m_Flags |= CANDIDATE;
continue;
#undef JUNCTION
}
if( Struct->Type() != DRAW_SEGMENT_STRUCT_TYPE )
continue;
#define SEGM ( (SCH_LINE*) Struct )
if( segment->IsOneEndPointAt( SEGM->m_Start ) )
{
if( !frame->LocatePinEnd( ListStruct, SEGM->m_Start ) )
{
Struct->m_Flags |= CANDIDATE;
MarkConnected( frame, ListStruct, SEGM );
}
}
if( segment->IsOneEndPointAt( SEGM->m_End ) )
{
if( !frame->LocatePinEnd( ListStruct, SEGM->m_End ) )
{
Struct->m_Flags |= CANDIDATE;
MarkConnected( frame, ListStruct, SEGM );
}
}
#undef SEGM
}
return TRUE;
}
/*
* Delete a connection, i.e wires or bus connected
* stop on a node (more than 2 wires (bus) connected)
*/
void WinEDA_SchematicFrame::DeleteConnection( bool DeleteFullConnection )
{
wxPoint refpos = GetScreen()->m_Curseur;
SCH_ITEM* DelStruct;
PICKED_ITEMS_LIST pickList;
/* Clear .m_Flags member for all items */
for( DelStruct = GetScreen()->EEDrawList; DelStruct != NULL;
DelStruct = DelStruct->Next() )
DelStruct->m_Flags = 0;
BreakSegmentOnJunction( (SCH_SCREEN*) GetScreen() );
/* Locate all the wires, bus or junction under the mouse cursor, and put
* them in a list of items to delete
*/
ITEM_PICKER picker(NULL, UR_DELETED);
SCH_SCREEN* screen = (SCH_SCREEN*) GetScreen();
// Save the list entry point of this screen
SCH_ITEM* savedEEDrawList = screen->EEDrawList;
DelStruct = GetScreen()->EEDrawList;
while( DelStruct
&& ( DelStruct = PickStruct( screen->m_Curseur, screen,
JUNCTIONITEM | WIREITEM | BUSITEM ) ) != NULL )
{
DelStruct->m_Flags = SELECTEDNODE | STRUCT_DELETED;
/* Put this structure in the picked list: */
picker.m_PickedItem = DelStruct;
picker.m_PickedItemType = DelStruct->Type();
pickList.PushItem(picker);
DelStruct = DelStruct->Next();
screen->EEDrawList = DelStruct;
}
GetScreen()->EEDrawList = savedEEDrawList;
/* Mark all wires, junctions, .. connected to one of the item to delete
*/
if( DeleteFullConnection )
{
for( DelStruct = GetScreen()->EEDrawList; DelStruct != NULL;
DelStruct = DelStruct->Next() )
{
if( !(DelStruct->m_Flags & SELECTEDNODE) )
continue;
#define SEGM ( (SCH_LINE*) DelStruct )
if( DelStruct->Type() != DRAW_SEGMENT_STRUCT_TYPE )
continue;
MarkConnected( this, GetScreen()->EEDrawList, SEGM );
#undef SEGM
}
// Search all removable wires (i.e wire with one new dangling end )
for( DelStruct = GetScreen()->EEDrawList; DelStruct != NULL;
DelStruct = DelStruct->Next() )
{
bool noconnect = FALSE;
if( DelStruct->m_Flags & STRUCT_DELETED )
continue; // Already seen
if( !(DelStruct->m_Flags & CANDIDATE) )
continue; // Already seen
if( DelStruct->Type() != DRAW_SEGMENT_STRUCT_TYPE )
continue;
DelStruct->m_Flags |= SKIP_STRUCT;
#define SEGM ( (SCH_LINE*) DelStruct )
/* Test the SEGM->m_Start point: if this point was connected to
* an STRUCT_DELETED wire, and now is not connected, the wire can
* be deleted */
EDA_BaseStruct* removed_struct;
for( removed_struct = GetScreen()->EEDrawList;
removed_struct != NULL;
removed_struct = removed_struct->Next() )
{
if( ( removed_struct->m_Flags & STRUCT_DELETED ) == 0 )
continue;
if( removed_struct->Type() != DRAW_SEGMENT_STRUCT_TYPE )
continue;
#define WIRE ( (SCH_LINE*) removed_struct )
if( WIRE->IsOneEndPointAt( SEGM->m_Start ) )
break;
}
if( WIRE && !CountConnectedItems( this, GetScreen()->EEDrawList,
SEGM->m_Start, TRUE ) )
noconnect = TRUE;
/* Test the SEGM->m_End point: if this point was connected to
* an STRUCT_DELETED wire, and now is not connected, the wire
* can be deleted */
for( removed_struct = GetScreen()->EEDrawList;
removed_struct != NULL;
removed_struct = removed_struct->Next() )
{
if( ( removed_struct->m_Flags & STRUCT_DELETED ) == 0 )
continue;
if( removed_struct->Type() != DRAW_SEGMENT_STRUCT_TYPE )
continue;
if( WIRE->IsOneEndPointAt( SEGM->m_End ) )
break;
}
if( removed_struct &&
!CountConnectedItems( this, GetScreen()->EEDrawList,
SEGM->m_End, TRUE ) )
noconnect = TRUE;
DelStruct->m_Flags &= ~SKIP_STRUCT;
if( noconnect )
{
DelStruct->m_Flags |= STRUCT_DELETED;
/* Put this structure in the picked list: */
picker.m_PickedItem = DelStruct;
picker.m_PickedItemType = DelStruct->Type();
pickList.PushItem(picker);
DelStruct = GetScreen()->EEDrawList;
}
#undef SEGM
}
// Delete redundant junctions (junctions which connect < 3 end wires
// and no pin are removed)
for( DelStruct = GetScreen()->EEDrawList; DelStruct != NULL;
DelStruct = DelStruct->Next() )
{
int count;
if( DelStruct->m_Flags & STRUCT_DELETED )
continue;
if( !(DelStruct->m_Flags & CANDIDATE) )
continue;
if( DelStruct->Type() == DRAW_JUNCTION_STRUCT_TYPE )
{
#define JUNCTION ( (SCH_JUNCTION*) DelStruct )
count = CountConnectedItems( this, GetScreen()->EEDrawList,
JUNCTION->m_Pos, FALSE );
if( count <= 2 )
{
DelStruct->m_Flags |= STRUCT_DELETED;
/* Put this structure in the picked list: */
picker.m_PickedItem = DelStruct;
picker.m_PickedItemType = DelStruct->Type();
pickList.PushItem(picker);
}
#undef JUNCTION
}
}
// Delete labels attached to wires
wxPoint pos = GetScreen()->m_Curseur;
for( DelStruct = GetScreen()->EEDrawList; DelStruct != NULL;
DelStruct = DelStruct->Next() )
{
if( DelStruct->m_Flags & STRUCT_DELETED )
continue;
if( DelStruct->Type() != TYPE_SCH_LABEL )
continue;
GetScreen()->m_Curseur = ( (SCH_TEXT*) DelStruct )->m_Pos;
EDA_BaseStruct* TstStruct =
PickStruct( GetScreen()->m_Curseur, GetScreen(),
WIREITEM | BUSITEM );
if( TstStruct && TstStruct->m_Flags & STRUCT_DELETED )
{
DelStruct->m_Flags |= STRUCT_DELETED;
/* Put this structure in the picked list: */
picker.m_PickedItem = DelStruct;
picker.m_PickedItemType = DelStruct->Type();
pickList.PushItem(picker);
}
}
GetScreen()->m_Curseur = pos;
}
for( DelStruct = GetScreen()->EEDrawList; DelStruct != NULL;
DelStruct = DelStruct->Next() )
DelStruct->m_Flags = 0;
if( pickList.GetCount() )
{
DeleteItemsInList( DrawPanel, pickList );
OnModify( );
}
}
/*
* Locate and delete the item found under the mouse cursor
* If more than one item found: the priority order is:
* 1 : MARKER
* 2 : JUNCTION
* 2 : NOCONNECT
* 3 : WIRE or BUS
* 4 : DRAWITEM
* 5 : TEXT
* 6 : COMPOSANT
* 7 : SHEET
*
* return TRUE if an item was deleted
*/
bool LocateAndDeleteItem( WinEDA_SchematicFrame* frame, wxDC* DC )
{
SCH_ITEM* DelStruct;
SCH_SCREEN* screen = (SCH_SCREEN*) ( frame->GetScreen() );
bool item_deleted = FALSE;
DelStruct = PickStruct( screen->m_Curseur, screen, MARKERITEM );
if( DelStruct == NULL )
DelStruct = PickStruct( screen->m_Curseur, screen, JUNCTIONITEM );
if( DelStruct == NULL )
DelStruct = PickStruct( screen->m_Curseur, screen, NOCONNECTITEM );
if( DelStruct == NULL )
DelStruct = PickStruct( screen->m_Curseur, screen, RACCORDITEM );
if( DelStruct == NULL )
DelStruct = PickStruct( screen->m_Curseur, screen, WIREITEM | BUSITEM );
if( DelStruct == NULL )
DelStruct = PickStruct( screen->m_Curseur, screen, DRAWITEM );
if( DelStruct == NULL )
DelStruct = PickStruct( screen->m_Curseur, screen,
TEXTITEM | LABELITEM );
if( DelStruct == NULL )
DelStruct = PickStruct( screen->m_Curseur, screen, LIBITEM );
if( DelStruct == NULL )
DelStruct = PickStruct( screen->m_Curseur, screen, SHEETITEM );
if( DelStruct )
{
g_ItemToRepeat = NULL;
DeleteStruct( frame->DrawPanel, DC, DelStruct );
frame->TestDanglingEnds( frame->GetScreen()->EEDrawList, DC );
frame->OnModify( );
item_deleted = TRUE;
}
return item_deleted;
}
/*
* Remove definition of a structure in a linked list
* Elements of Drawing
* DrawStruct * = pointer to the structure
* Screen = pointer on the screen of belonging
*
* Note:
* DRAW_SHEET_STRUCT_TYPE structures for the screen and structures
* Corresponding keys are not.
* They must be treated separately
*/
void EraseStruct( SCH_ITEM* DrawStruct, SCH_SCREEN* Screen )
{
EDA_BaseStruct* DrawList;
if( DrawStruct == NULL )
return;
if( Screen == NULL )
return;
Screen->SetModify();
if( DrawStruct->Type() == DRAW_HIERARCHICAL_PIN_SHEET_STRUCT_TYPE )
{
// This structure is attached to a sheet, get the parent sheet object.
SCH_SHEET_PIN* sheetLabel = (SCH_SHEET_PIN*) DrawStruct;
SCH_SHEET* sheet = sheetLabel->GetParent();
wxASSERT_MSG( sheet != NULL,
wxT( "Sheet label parent not properly set, bad programmer!" ) );
sheet->RemoveLabel( sheetLabel );
return;
}
else
{
if( DrawStruct == Screen->EEDrawList )
{
Screen->EEDrawList = DrawStruct->Next();
SAFE_DELETE( DrawStruct );
}
else
{
DrawList = Screen->EEDrawList;
while( DrawList && DrawList->Next() )
{
if( DrawList->Next() == DrawStruct )
{
DrawList->SetNext( DrawStruct->Next() );
SAFE_DELETE( DrawStruct );
return;
}
DrawList = DrawList->Next();
}
}
}
}
void DeleteAllMarkers( int type )
{
SCH_SCREEN* screen;
SCH_ITEM * DrawStruct, * NextStruct;
SCH_MARKER* Marker;
EDA_ScreenList ScreenList;
for( screen = ScreenList.GetFirst(); screen != NULL;
screen = ScreenList.GetNext() )
{
for( DrawStruct = screen->EEDrawList; DrawStruct != NULL;
DrawStruct = NextStruct )
{
NextStruct = DrawStruct->Next();
if( DrawStruct->Type() != TYPE_SCH_MARKER )
continue;
Marker = (SCH_MARKER*) DrawStruct;
if( Marker->GetMarkerType() != type )
continue;
/* Remove marker */
EraseStruct( DrawStruct, screen );
}
}
}
|