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"
/********************************************************************************/
static int CountConnectedItems(WinEDA_SchematicFrame * frame,
EDA_BaseStruct * ListStruct, wxPoint pos, bool TstJunction)
/********************************************************************************/
/* 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()
*/
{
EDA_BaseStruct * Struct;
int count = 0;
if ( frame->LocatePinEnd(ListStruct, pos) ) count++;
for ( Struct = ListStruct; Struct != NULL; Struct = Struct->Pnext)
{
if ( Struct->m_Flags & STRUCT_DELETED ) continue;
if ( Struct->m_Flags & SKIP_STRUCT ) continue;
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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
}
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if ( Struct->Type() != DRAW_SEGMENT_STRUCT_TYPE ) continue;
#define SEGM ((EDA_DrawLineStruct*)Struct)
if ( SEGM->IsOneEndPointAt(pos) ) count++;
#undef SEGM
}
return count;
}
/************************************************************************************/
static bool MarkConnected(WinEDA_SchematicFrame * frame, EDA_BaseStruct * ListStruct,
EDA_DrawLineStruct* segment)
/************************************************************************************/
/* 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()
*/
{
EDA_BaseStruct * Struct;
for ( Struct = ListStruct; Struct != NULL; Struct = Struct->Pnext)
{
if ( Struct->m_Flags ) continue;
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if ( Struct->Type() == DRAW_JUNCTION_STRUCT_TYPE )
{
#define JUNCTION ((DrawJunctionStruct*)Struct)
if ( segment->IsOneEndPointAt(JUNCTION->m_Pos) ) Struct->m_Flags |= CANDIDATE;
continue;
#undef JUNCTION
}
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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;
}
/********************************************************************************/
void WinEDA_SchematicFrame::DeleteConnection(wxDC * DC, bool DeleteFullConnection)
/********************************************************************************/
/* Delete a connection, i.e wires or bus connected
stop on a node (more than 2 wires (bus) connected)
*/
{
wxPoint refpos = GetScreen()->m_Curseur;
EDA_BaseStruct * DelStruct ;
DrawPickedStruct * PickedItem, *PickedList = NULL;
/* Clear .m_Flags member for all items */
for(DelStruct = GetScreen()->EEDrawList; DelStruct != NULL; DelStruct=DelStruct->Pnext)
DelStruct->m_Flags = 0;
BreakSegmentOnJunction( 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
*/
while ( DelStruct &&
(DelStruct = PickStruct(GetScreen()->m_Curseur,
DelStruct, 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->Pnext;
}
/* Mark all wires, junctions, .. connected to one of the item to delete
*/
if ( DeleteFullConnection )
{
for ( DelStruct = GetScreen()->EEDrawList; DelStruct != NULL; DelStruct = DelStruct->Pnext)
{
if ( ! (DelStruct->m_Flags & SELECTEDNODE) ) continue;
#define SEGM ((EDA_DrawLineStruct*)DelStruct)
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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->Pnext)
{
bool noconnect = FALSE;
if ( DelStruct->m_Flags & STRUCT_DELETED ) continue; // Already seen
if ( ! (DelStruct->m_Flags & CANDIDATE) ) continue; // Already seen
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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;
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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;
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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->Pnext)
{
int count;
if ( DelStruct->m_Flags & STRUCT_DELETED ) continue;
if ( ! (DelStruct->m_Flags & CANDIDATE) ) continue;
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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->Pnext)
{
if ( DelStruct->m_Flags & STRUCT_DELETED ) continue;
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if ( DelStruct->Type() != DRAW_LABEL_STRUCT_TYPE ) continue;
GetScreen()->m_Curseur = ((DrawTextStruct*)DelStruct)->m_Pos;
EDA_BaseStruct * TstStruct =
PickStruct(GetScreen()->m_Curseur, GetScreen()->EEDrawList,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->Pnext)
DelStruct->m_Flags = 0;
if ( PickedList )
{
DeleteStruct(DrawPanel, DC, PickedList);
GetScreen()->SetModify();
}
}
/*****************************************************************/
bool LocateAndDeleteItem(WinEDA_SchematicFrame * frame, wxDC * DC)
/*****************************************************************/
/* Locate and delete the item found under the mouse cousor
If more than one item found: the priority order is:
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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
*/
{
EDA_BaseStruct * DelStruct;
SCH_SCREEN * screen = frame->GetScreen();
bool item_deleted = FALSE;
DelStruct = PickStruct(screen->m_Curseur,
screen->EEDrawList, MARKERITEM);
if( DelStruct == NULL ) DelStruct = PickStruct(screen->m_Curseur,
screen->EEDrawList, JUNCTIONITEM);
if( DelStruct == NULL ) DelStruct = PickStruct(screen->m_Curseur,
screen->EEDrawList, NOCONNECTITEM);
if( DelStruct == NULL ) DelStruct = PickStruct(screen->m_Curseur,
screen->EEDrawList, RACCORDITEM);
if( DelStruct == NULL ) DelStruct = PickStruct(screen->m_Curseur,
screen->EEDrawList, WIREITEM|BUSITEM);
if( DelStruct == NULL ) DelStruct = PickStruct(screen->m_Curseur,
screen->EEDrawList, DRAWITEM);
if( DelStruct == NULL ) DelStruct = PickStruct(screen->m_Curseur,
screen->EEDrawList, TEXTITEM|LABELITEM);
if( DelStruct == NULL ) DelStruct = PickStruct(screen->m_Curseur,
screen->EEDrawList, LIBITEM);
if( DelStruct == NULL ) DelStruct = PickStruct(screen->m_Curseur,
screen->EEDrawList, SHEETITEM);
if (DelStruct)
{
g_ItemToRepeat = NULL;
DeleteStruct(frame->DrawPanel, DC, DelStruct);
frame->TestDanglingEnds(frame->m_CurrentScreen->EEDrawList, DC);
frame->GetScreen()->SetModify();
item_deleted = TRUE;
}
return item_deleted;
}
/***************************************************************/
void EraseStruct(EDA_BaseStruct *DrawStruct, SCH_SCREEN * Screen)
/***************************************************************/
/* Suppression definitive d'une structure dans une liste chainee
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
*/
{
EDA_BaseStruct *DrawList;
DrawPickedStruct *PickedList = NULL;
DrawSheetLabelStruct* SheetLabel, *NextLabel;
if( DrawStruct == NULL ) return;
if( Screen == NULL ) return;
Screen->SetModify();
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if (DrawStruct->Type() == DRAW_SHEETLABEL_STRUCT_TYPE)
{ /* Cette stucture est rattachee a une feuille, et n'est pas
accessible par la liste globale directement */
DrawList = Screen->EEDrawList;
for ( ; DrawList != NULL; DrawList = DrawList->Pnext )
{
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if(DrawList->Type() != DRAW_SHEET_STRUCT_TYPE) continue;
/* Examen de la Sheet */
SheetLabel = ((DrawSheetStruct *) DrawList)->m_Label;
if (SheetLabel == NULL) continue;
if (SheetLabel == (DrawSheetLabelStruct*) DrawStruct)
{
((DrawSheetStruct *) DrawList)->m_Label =
(DrawSheetLabelStruct *)SheetLabel->Pnext;
delete DrawStruct;
return;
}
else while( SheetLabel->Pnext )/* Examen de la liste dependante */
{
NextLabel = (DrawSheetLabelStruct *)SheetLabel->Pnext;
if( NextLabel == (DrawSheetLabelStruct*) DrawStruct )
{
SheetLabel->Pnext = (EDA_BaseStruct *)NextLabel->Pnext;
delete DrawStruct;
return;
}
SheetLabel = NextLabel;
}
}
return;
}
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if (DrawStruct->Type() == DRAW_PICK_ITEM_STRUCT_TYPE)
{
PickedList = (DrawPickedStruct *) DrawStruct;
while (PickedList)
{
if (PickedList->m_PickedStruct == Screen->EEDrawList)
{
Screen->EEDrawList = Screen->EEDrawList->Pnext;
delete DrawStruct;
}
else
{
DrawList = Screen->EEDrawList;
while ( DrawList && DrawList->Pnext)
{
if (DrawList->Pnext == PickedList->m_PickedStruct)
{
DrawList->Pnext = DrawList->Pnext->Pnext;
delete DrawStruct;
return;
}
DrawList = DrawList->Pnext;
}
}
PickedList = (DrawPickedStruct *)PickedList->Pnext;
}
}
else // structure usuelle */
{
if (DrawStruct == Screen->EEDrawList)
{
Screen->EEDrawList = DrawStruct->Pnext;
delete DrawStruct;
}
else
{
DrawList = Screen->EEDrawList;
while (DrawList && DrawList->Pnext)
{
if (DrawList->Pnext == DrawStruct)
{
DrawList->Pnext = DrawStruct->Pnext;
delete DrawStruct;
return;
}
DrawList = DrawList->Pnext;
}
}
}
}
/********************************/
void DeleteAllMarkers(int type)
/********************************/
/* Effacement des marqueurs du type "type" */
{
SCH_SCREEN * screen;
EDA_BaseStruct * DrawStruct, * NextStruct;
DrawMarkerStruct * Marker;
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EDA_ScreenList ScreenList(NULL);
for ( screen = ScreenList.GetFirst(); screen != NULL; screen = ScreenList.GetNext() )
{
for ( DrawStruct = screen->EEDrawList; DrawStruct != NULL; DrawStruct = NextStruct)
{
NextStruct = DrawStruct->Pnext;
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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);
}
}
}
/********************************************************************/
void DeleteOneLibraryDrawStruct(WinEDA_DrawPanel * panel, wxDC * DC,
EDA_LibComponentStruct * LibEntry,
LibEDA_BaseStruct * DrawItem, int Affiche)
/********************************************************************/
/* 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
*/
{
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();
delete DrawItem;
}
else /* Cas des autres items */
while(PreviousDrawItem)
{
if(PreviousDrawItem->Pnext == DrawItem)
{
PreviousDrawItem->Pnext = DrawItem->Pnext;
delete DrawItem; break;
}
PreviousDrawItem = PreviousDrawItem->Next();
}
}
else /* Structure non reliee a un composant */
{
delete DrawItem;
}
}