kicad/eeschema/delete.cpp

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/************************************/
/* Delete.cpp: routines d'effacement */
/************************************/
#include "fctsys.h"
#include "gr_basic.h"
#include "common.h"
#include "program.h"
#include "libcmp.h"
#include "general.h"
#include "protos.h"
/********************************************************************************/
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static int CountConnectedItems( WinEDA_SchematicFrame* frame,
SCH_ITEM* ListStruct, wxPoint pos, bool TstJunction )
/********************************************************************************/
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/* 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()
*/
{
SCH_ITEM* Struct;
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int count = 0;
if( frame->LocatePinEnd( ListStruct, pos ) )
count++;
for( Struct = ListStruct; Struct != NULL; Struct = Struct->Next() )
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{
if( Struct->m_Flags & STRUCT_DELETED )
continue;
if( Struct->m_Flags & SKIP_STRUCT )
continue;
if( TstJunction && (Struct->Type() == DRAW_JUNCTION_STRUCT_TYPE) )
{
#define JUNCTION ( (DrawJunctionStruct*) Struct )
if( (JUNCTION->m_Pos.x == pos.x) && (JUNCTION->m_Pos.y == pos.y) )
count++;
#undef JUNCTION
}
if( Struct->Type() != DRAW_SEGMENT_STRUCT_TYPE )
continue;
#define SEGM ( (EDA_DrawLineStruct*) Struct )
if( SEGM->IsOneEndPointAt( pos ) )
count++;
#undef SEGM
}
return count;
}
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/************************************************************************************/
static bool MarkConnected( WinEDA_SchematicFrame* frame, SCH_ITEM* ListStruct,
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EDA_DrawLineStruct* segment )
/************************************************************************************/
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/* 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()
*/
{
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EDA_BaseStruct* Struct;
for( Struct = ListStruct; Struct != NULL; Struct = Struct->Next() )
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{
if( Struct->m_Flags )
continue;
if( Struct->Type() == DRAW_JUNCTION_STRUCT_TYPE )
{
#define JUNCTION ( (DrawJunctionStruct*) Struct )
if( segment->IsOneEndPointAt( JUNCTION->m_Pos ) )
Struct->m_Flags |= CANDIDATE;
continue;
#undef JUNCTION
}
if( Struct->Type() != DRAW_SEGMENT_STRUCT_TYPE )
continue;
#define SEGM ( (EDA_DrawLineStruct*) 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;
}
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/********************************************************************************/
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void WinEDA_SchematicFrame::DeleteConnection( wxDC* DC, bool DeleteFullConnection )
/********************************************************************************/
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/* Delete a connection, i.e wires or bus connected
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* stop on a node (more than 2 wires (bus) connected)
*/
{
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wxPoint refpos = GetScreen()->m_Curseur;
SCH_ITEM* DelStruct;
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DrawPickedStruct* PickedItem, * PickedList = NULL;
/* Clear .m_Flags member for all items */
for( DelStruct = GetScreen()->EEDrawList; DelStruct != NULL; DelStruct = DelStruct->Next() )
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DelStruct->m_Flags = 0;
BreakSegmentOnJunction( (SCH_SCREEN*) GetScreen() );
DelStruct = GetScreen()->EEDrawList;
/* Locate all the wires, bus or junction under the mouse cursor, and put them in a list
* of items to delete
*/
SCH_SCREEN* screen = (SCH_SCREEN*) GetScreen();
SCH_ITEM* savedEEDrawList = screen->EEDrawList;
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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: */
PickedItem = new DrawPickedStruct( DelStruct );
PickedItem->Pnext = PickedList;
PickedList = PickedItem;
DelStruct = DelStruct->Next();
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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() )
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{
if( !(DelStruct->m_Flags & SELECTEDNODE) )
continue;
#define SEGM ( (EDA_DrawLineStruct*) 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() )
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{
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 ( (EDA_DrawLineStruct*) 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->Pnext )
{
if( (removed_struct->m_Flags & STRUCT_DELETED) == 0 )
continue;
if( removed_struct->Type() != DRAW_SEGMENT_STRUCT_TYPE )
continue;
#define WIRE ( (EDA_DrawLineStruct*) 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->Pnext )
{
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: */
PickedItem = new DrawPickedStruct( DelStruct );
PickedItem->Pnext = PickedList;
PickedList = PickedItem;
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() )
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{
int count;
if( DelStruct->m_Flags & STRUCT_DELETED )
continue;
if( !(DelStruct->m_Flags & CANDIDATE) )
continue;
if( DelStruct->Type() == DRAW_JUNCTION_STRUCT_TYPE )
{
#define JUNCTION ( (DrawJunctionStruct*) 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: */
PickedItem = new DrawPickedStruct( DelStruct );
PickedItem->Pnext = PickedList;
PickedList = PickedItem;
}
#undef JUNCTION
}
}
// Delete labels attached to wires
wxPoint pos = GetScreen()->m_Curseur;
for( DelStruct = GetScreen()->EEDrawList; DelStruct != NULL; DelStruct = DelStruct->Next() )
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{
if( DelStruct->m_Flags & STRUCT_DELETED )
continue;
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if( DelStruct->Type() != TYPE_SCH_LABEL )
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continue;
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GetScreen()->m_Curseur = ( (SCH_TEXT*) DelStruct )->m_Pos;
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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: */
PickedItem = new DrawPickedStruct( DelStruct );
PickedItem->Pnext = PickedList;
PickedList = PickedItem;
}
}
GetScreen()->m_Curseur = pos;
}
for( DelStruct = GetScreen()->EEDrawList; DelStruct != NULL; DelStruct = DelStruct->Next() )
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DelStruct->m_Flags = 0;
if( PickedList )
{
DeleteStruct( DrawPanel, DC, PickedList );
GetScreen()->SetModify();
}
}
/*****************************************************************/
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bool LocateAndDeleteItem( WinEDA_SchematicFrame* frame, wxDC* DC )
/*****************************************************************/
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/* Locate and delete the item found under the mouse cousor
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* If more than one item found: the priority order is:
* 1 : MARKER
* 2 : JUNCTION
* 2 : NOCONNECT
* 3 : WIRE ou BUS
* 4 : DRAWITEM
* 5 : TEXT
* 6 : COMPOSANT
* 7 : SHEET
*
* return TRUE if an item was deleted
*/
{
SCH_ITEM* DelStruct;
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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->GetScreen()->SetModify();
item_deleted = TRUE;
}
return item_deleted;
}
/***************************************************************/
void EraseStruct( SCH_ITEM* DrawStruct, SCH_SCREEN* Screen )
/***************************************************************/
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/* Suppression definitive d'une structure dans une liste chainee
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* d'elements de dessin
* DrawStruct = pointeur sur la structure
* Screen = pointeur sur l'ecran d'appartenance
* Le chainage de la liste est modifie.
*
* Remarque:
* pour les structures DRAW_SHEET_STRUCT_TYPE, l'ecran et les structures
* correspondantes ne sont pas touches.
* Ils doivent etre traites separement
*/
{
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EDA_BaseStruct* DrawList;
DrawPickedStruct* PickedList = NULL;
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Hierarchical_PIN_Sheet_Struct* SheetLabel, * NextLabel;
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if( DrawStruct == NULL )
return;
if( Screen == NULL )
return;
Screen->SetModify();
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if( DrawStruct->Type() == DRAW_HIERARCHICAL_PIN_SHEET_STRUCT_TYPE )
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{
/* Cette stucture est rattachee a une feuille, et n'est pas
* accessible par la liste globale directement */
//this structure has a sheet attached, which we must find.
DrawList = Screen->EEDrawList;
for( ; DrawList != NULL; DrawList = DrawList->Pnext )
{
if( DrawList->Type() != DRAW_SHEET_STRUCT_TYPE )
continue;
/* Examen de la Sheet */
SheetLabel = ( (DrawSheetStruct*) DrawList )->m_Label;
if( SheetLabel == NULL )
continue;
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if( SheetLabel == (Hierarchical_PIN_Sheet_Struct*) DrawStruct )
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{
( (DrawSheetStruct*) DrawList )->m_Label =
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(Hierarchical_PIN_Sheet_Struct*) SheetLabel->Pnext;
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SAFE_DELETE( DrawStruct );
return;
}
else
{
while( SheetLabel->Pnext ) /* Examen de la liste dependante */
{
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NextLabel = (Hierarchical_PIN_Sheet_Struct*) SheetLabel->Pnext;
if( NextLabel == (Hierarchical_PIN_Sheet_Struct*) DrawStruct )
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{
SheetLabel->Pnext = (EDA_BaseStruct*) NextLabel->Pnext;
SAFE_DELETE( DrawStruct );
return;
}
SheetLabel = NextLabel;
}
}
}
return;
}
if( DrawStruct->Type() == DRAW_PICK_ITEM_STRUCT_TYPE )
{
PickedList = (DrawPickedStruct*) DrawStruct;
while( PickedList )
{
if( PickedList->m_PickedStruct == Screen->EEDrawList )
{
Screen->EEDrawList = Screen->EEDrawList->Next();
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SAFE_DELETE( DrawStruct );
}
else
{
DrawList = Screen->EEDrawList;
while( DrawList && DrawList->Pnext )
{
if( DrawList->Pnext == PickedList->m_PickedStruct )
{
DrawList->Pnext = DrawList->Pnext->Pnext;
SAFE_DELETE( DrawStruct );
return;
}
DrawList = DrawList->Pnext;
}
}
PickedList = (DrawPickedStruct*) PickedList->Pnext;
}
}
else // structure usuelle */
{
if( DrawStruct == Screen->EEDrawList )
{
Screen->EEDrawList = DrawStruct->Next();
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SAFE_DELETE( DrawStruct );
}
else
{
DrawList = Screen->EEDrawList;
while( DrawList && DrawList->Pnext )
{
if( DrawList->Pnext == DrawStruct )
{
DrawList->Pnext = DrawStruct->Pnext;
SAFE_DELETE( DrawStruct );
return;
}
DrawList = DrawList->Pnext;
}
}
}
}
/********************************/
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void DeleteAllMarkers( int type )
/********************************/
/* Effacement des marqueurs du type "type" */
{
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SCH_SCREEN* screen;
SCH_ITEM * DrawStruct, * NextStruct;
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DrawMarkerStruct* Marker;
EDA_ScreenList ScreenList;
for( screen = ScreenList.GetFirst(); screen != NULL; screen = ScreenList.GetNext() )
{
for( DrawStruct = screen->EEDrawList; DrawStruct != NULL; DrawStruct = NextStruct )
{
NextStruct = DrawStruct->Next();
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if( DrawStruct->Type() != DRAW_MARKER_STRUCT_TYPE )
continue;
/* Marqueur trouve */
Marker = (DrawMarkerStruct*) DrawStruct;
if( Marker->m_Type != type )
continue;
/* Suppression du marqueur */
EraseStruct( DrawStruct, screen );
}
}
}
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/********************************************************************/
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void DeleteOneLibraryDrawStruct( WinEDA_DrawPanel* panel, wxDC* DC,
EDA_LibComponentStruct* LibEntry,
LibEDA_BaseStruct* DrawItem, int Affiche )
/********************************************************************/
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/* Routine d'effacement d'un "LibraryDrawStruct"
* (d'un element de dessin d'un composant )
*
* Parametres d'entree
* Pointeur sur le composant comportant la structure
* (Si NULL la structure a effacer est supposee non rattachee
* a un composant)
* Pointeur sur la structure a effacer
*
* Efface egalement le graphique correspondant de l'ecran
*/
{
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LibEDA_BaseStruct* PreviousDrawItem;
/* Effacement du graphique */
if( Affiche && DC )
DrawLibraryDrawStruct( panel, DC, LibEntry, 0, 0, DrawItem, CurrentUnit, g_XorMode );
/* Effacement de la structure en memoire */
if( LibEntry ) /* Recherche du predecesseur */
{
PreviousDrawItem = LibEntry->m_Drawings;
/* Cas du 1er symbole graphique = struct a supprimer */
if( LibEntry->m_Drawings == DrawItem )
{
LibEntry->m_Drawings = DrawItem->Next();
SAFE_DELETE( DrawItem );
}
else /* Cas des autres items */
{
while( PreviousDrawItem )
{
if( PreviousDrawItem->Pnext == DrawItem )
{
PreviousDrawItem->Pnext = DrawItem->Pnext;
SAFE_DELETE( DrawItem );
break;
}
PreviousDrawItem = PreviousDrawItem->Next();
}
}
}
else /* Structure non reliee a un composant */
{
SAFE_DELETE( DrawItem );
}
}