kicad/eeschema/bus-wire-junction.cpp

/*********************************************************/
/* Modules de creations de Traits, Wires, Bus, Junctions */
/*********************************************************/

#include "fctsys.h"
#include "gr_basic.h"

#include "common.h"
#include "program.h"
#include "libcmp.h"
#include "general.h"

#include "protos.h"


/* Routines Locales */
static void Show_Polyline_in_Ghost(WinEDA_DrawPanel * panel, wxDC * DC, bool erase);
static void Segment_in_Ghost(WinEDA_DrawPanel * panel, wxDC * DC, bool erase);
static void AbortCreateNewLine(WinEDA_DrawPanel * Panel, wxDC * DC);
static bool IsTerminalPoint(SCH_SCREEN * screen, const wxPoint & pos, int layer );
static bool IsJunctionNeeded (WinEDA_SchematicFrame * frame, wxPoint & pos );
static void ComputeBreakPoint(EDA_DrawLineStruct * segment, const wxPoint & new_pos);

EDA_BaseStruct * s_OldWiresList;
wxPoint s_ConnexionStartPoint;

/*********************************************************/
EDA_BaseStruct * SCH_SCREEN::ExtractWires(bool CreateCopy)
/*********************************************************/
/* Extract the old wires, junctions and busses, an if CreateCopy replace them by a copy.
Old ones must be put in undo list, and the new ones can be modified by clean up
safely.
If an abord command is made, old wires must be put in EEDrawList, and copies must be deleted
This is because previously stored undo commands can handle pointers on wires or bus,
and we do not delete wires or bus, we must put they in undo list.

Because cleanup delete and/or modify bus and wires, the more easy is to put all wires in undo list
and use a new copy of wires for cleanup
*/
{
EDA_BaseStruct *item, *next_item, *new_item, *  List  = NULL;
	
	for (item = EEDrawList; item != NULL; item = next_item)
	{
		next_item = item->Pnext;
		switch ( item->m_StructType )
		{
			case DRAW_JUNCTION_STRUCT_TYPE:
			case DRAW_SEGMENT_STRUCT_TYPE:
				RemoveFromDrawList(item);
				item->Pnext = List;
				List = item;
				if ( CreateCopy )
				{
					if ( item->m_StructType == DRAW_JUNCTION_STRUCT_TYPE)
						new_item = ((DrawJunctionStruct*)item)->GenCopy();
					else 
						new_item = ((EDA_DrawLineStruct*)item)->GenCopy();
					new_item->Pnext = EEDrawList;
					EEDrawList = new_item;
				}
				break;
			
			default:
				break;
		}
	}
	
	return List;
	
}


/*************************************************/
static void RestoreOldWires(SCH_SCREEN * screen)
/*************************************************/
/* Replace the wires in screen->EEDrawList by s_OldWiresList wires.
*/
{
EDA_BaseStruct *item, *next_item;
	
	for (item = screen->EEDrawList; item != NULL; item = next_item)
	{
		next_item = item->Pnext;
		switch ( item->m_StructType )
		{
			case DRAW_JUNCTION_STRUCT_TYPE:
			case DRAW_SEGMENT_STRUCT_TYPE:
				screen->RemoveFromDrawList(item);
				delete item;
				break;
			
			default:
				break;
		}
	}
	
	while (s_OldWiresList)
	{
		next_item = s_OldWiresList->Pnext;
		s_OldWiresList->Pnext = screen->EEDrawList,
		screen->EEDrawList = s_OldWiresList;
		s_OldWiresList = next_item;
	}
}


/*************************************************************/
void WinEDA_SchematicFrame::BeginSegment(wxDC * DC, int type)
/*************************************************************/
/* Create a new segment ( WIRE, BUS ).
*/
{
EDA_DrawLineStruct * oldsegment, * newsegment, * nextsegment;
wxPoint cursorpos = GetScreen()->m_Curseur;
	
	if ( GetScreen()->m_CurrentItem && (GetScreen()->m_CurrentItem->m_Flags == 0) )
		GetScreen()->m_CurrentItem = NULL;

	if ( GetScreen()->m_CurrentItem )
	{
		switch (GetScreen()->m_CurrentItem->m_StructType )
		{
			case DRAW_SEGMENT_STRUCT_TYPE:
			case DRAW_POLYLINE_STRUCT_TYPE:
				break;

			default:
				return;
		}
	}

	oldsegment = newsegment =
			(EDA_DrawLineStruct *) GetScreen()->m_CurrentItem;

	if (!newsegment)  /* first point : Create first wire ou bus */
	{
		s_ConnexionStartPoint = cursorpos;
		s_OldWiresList = GetScreen()->ExtractWires(TRUE);
		GetScreen()->SchematicCleanUp(NULL);
		switch(type)
		{
			default:
				newsegment = new EDA_DrawLineStruct(cursorpos, LAYER_NOTES);
				break;
			case LAYER_WIRE:
				newsegment = new EDA_DrawLineStruct(cursorpos, LAYER_WIRE);
				/* A junction will be created later, when w'll know the
				segment end position, and if the junction is really needed */
				break;
			case LAYER_BUS:
				newsegment = new EDA_DrawLineStruct(cursorpos, LAYER_BUS);
				break;
		}

		newsegment->m_Flags = IS_NEW;
		if( g_HVLines )	// We need 2 segments to go from a given start pint to an end point
		{
			nextsegment = newsegment->GenCopy();
			nextsegment->m_Flags = IS_NEW;
			newsegment->Pnext = nextsegment;
			nextsegment->Pback = newsegment;
		}
		GetScreen()->m_CurrentItem = newsegment;
		DrawPanel->ManageCurseur = Segment_in_Ghost;
		DrawPanel->ForceCloseManageCurseur = AbortCreateNewLine;
		g_ItemToRepeat = NULL;
	}

	else	/* Trace en cours: Placement d'un point supplementaire */
	{
		nextsegment = (EDA_DrawLineStruct*)oldsegment->Pnext;
		if( ! g_HVLines )
		{ /* if only one segment is needed and the current is has len = 0, do not create a new one*/
			if( oldsegment->IsNull() ) return;
		}
		else
		{ 	/* if we want 2 segment and the last two have len = 0, do not create a new one*/
			if ( oldsegment->IsNull() && nextsegment && nextsegment->IsNull() )
				return;
		}

		DrawPanel->ManageCurseur(DrawPanel, DC, FALSE);

		/* Creation du segment suivant ou fin de trac<61> si point sur pin, jonction ...*/
		if ( IsTerminalPoint(GetScreen(), cursorpos, oldsegment->m_Layer) )
		{
			EndSegment(DC); return;
		}

		/* Placement en liste generale */
		oldsegment->Pnext = GetScreen()->EEDrawList;
		GetScreen()->EEDrawList = oldsegment;
		DrawPanel->CursorOff(DC);	// Erase schematic cursor
		RedrawOneStruct(DrawPanel,DC, oldsegment, GR_DEFAULT_DRAWMODE);
		DrawPanel->CursorOn(DC);	// Display schematic cursor

		/* Create a new segment, and chain it after the current new segment */
		if ( nextsegment ) 
		{
			newsegment = nextsegment->GenCopy();
			nextsegment->m_Start = newsegment->m_End;
			nextsegment->Pnext = NULL;
			nextsegment->Pback = newsegment;
			newsegment->Pnext = nextsegment;
			newsegment->Pback = NULL;
		}
		else
		{
			newsegment = oldsegment->GenCopy();
			newsegment->m_Start = oldsegment->m_End;
		}
		newsegment->m_End = cursorpos;
		oldsegment->m_Flags = SELECTED;
		newsegment->m_Flags = IS_NEW;
		GetScreen()->m_CurrentItem = newsegment;
		DrawPanel->ManageCurseur(DrawPanel, DC, FALSE);
		if ( oldsegment->m_Start == s_ConnexionStartPoint )
		{	/* This is the first segment: Now we know the start segment position.
			Create a junction if needed. Note: a junction can be needed
			later, if the new segment is merged (after a cleanup) with an older one 
			(tested when the connection will be finished)*/
			if ( IsJunctionNeeded(this, s_ConnexionStartPoint) )
				CreateNewJunctionStruct(DC, s_ConnexionStartPoint);
		}
	}
}


/***********************************************/
void WinEDA_SchematicFrame::EndSegment(wxDC *DC)
/***********************************************/
/* Called to terminate a bus, wire, or line creation
*/
{
EDA_DrawLineStruct * firstsegment = (EDA_DrawLineStruct *)GetScreen()->m_CurrentItem;
EDA_DrawLineStruct * lastsegment = firstsegment;
EDA_DrawLineStruct * segment;
	
	if ( firstsegment == NULL ) return;
	if ( (firstsegment->m_Flags & IS_NEW) == 0) return;

	/* Delete Null segments and Put line it in Drawlist */
	lastsegment = firstsegment;
	while ( lastsegment )
	{
		EDA_DrawLineStruct * nextsegment = (EDA_DrawLineStruct *)lastsegment->Pnext;
		if ( lastsegment->IsNull() )
		{
		EDA_DrawLineStruct * previous_segment = (EDA_DrawLineStruct *)lastsegment->Pback;
			if ( firstsegment == lastsegment ) firstsegment = nextsegment;
			if ( nextsegment ) nextsegment->Pback = NULL;
			if ( previous_segment ) previous_segment->Pnext = nextsegment;
			delete lastsegment;
		}
		lastsegment = nextsegment;
	}
	/* put the segment list to the main linked list */
	segment = lastsegment = firstsegment;
	while ( segment )
	{
		lastsegment = segment;
		segment = (EDA_DrawLineStruct *)segment->Pnext;
		lastsegment->Pnext = GetScreen()->EEDrawList;
		GetScreen()->EEDrawList = lastsegment;
	}
	
	/* Fin de trace */
	DrawPanel->ManageCurseur = NULL;
	DrawPanel->ForceCloseManageCurseur = NULL;
	GetScreen()->m_CurrentItem = NULL;

wxPoint end_point, alt_end_point;
	/* A junction can be needed to connect the last segment
	usually to m_End coordinate.
	But if the last segment is removed by a cleanup, because od redundancy,
	a junction can be needed to connect the previous segment m_End coordinate
	with is also the lastsegment->m_Start coordinate */
	if ( lastsegment )
	{
		end_point = lastsegment->m_End;
		alt_end_point = lastsegment->m_Start;
	}

	GetScreen()->SchematicCleanUp(NULL);

	/* clear flags and find last segment entered, for repeat function */
	segment = (EDA_DrawLineStruct *) GetScreen()->EEDrawList;
	while ( segment )
	{
		if ( segment->m_Flags )
		{
			if ( ! g_ItemToRepeat ) g_ItemToRepeat = segment;
		}
		segment->m_Flags = 0;
		segment = (EDA_DrawLineStruct *)segment->Pnext;
	}

	// Automatic place of a junction on the end point, if needed
	if ( lastsegment )
	{
		if( IsJunctionNeeded(this, end_point) )
			CreateNewJunctionStruct(DC, end_point);

		else if( IsJunctionNeeded(this, alt_end_point) )
			CreateNewJunctionStruct(DC, alt_end_point);
	}
	
	/* Automatic place of a junction on the start point if necessary because the 
	Cleanup can suppress intermediate points by merging wire segments*/
	if ( IsJunctionNeeded(this, s_ConnexionStartPoint) )
		CreateNewJunctionStruct(DC, s_ConnexionStartPoint);

	TestDanglingEnds(GetScreen()->EEDrawList, DC);

	
	/* Redraw wires and junctions which can be changed by TestDanglingEnds() */
	DrawPanel->CursorOff(DC);	// Erase schematic cursor
	EDA_BaseStruct *item = GetScreen()->EEDrawList;
	while ( item )
	{
		switch ( item->m_StructType )
		{
			case DRAW_JUNCTION_STRUCT_TYPE:
			case DRAW_SEGMENT_STRUCT_TYPE:
				RedrawOneStruct(DrawPanel,DC, item, GR_DEFAULT_DRAWMODE);
				break;
				
			default:
				break;
		}
		item = item->Pnext;
	}
	

	DrawPanel->CursorOn(DC);	// Display schematic cursor
	
	SaveCopyInUndoList(s_OldWiresList, IS_WIRE_IMAGE);
	s_OldWiresList = NULL;

	GetScreen()->SetModify();
}

/****************************************************************************/
static void Segment_in_Ghost(WinEDA_DrawPanel * panel, wxDC * DC, bool erase)
/****************************************************************************/
/*  Redraw the segment (g_HVLines == FALSE ) or the two segments (g_HVLines == TRUE )
	from the start point to the cursor, when moving the mouse
*/
{
EDA_DrawLineStruct * CurrentLine =
		(EDA_DrawLineStruct *) panel->m_Parent->GetScreen()->m_CurrentItem;
EDA_DrawLineStruct * segment;
int color;

	if ( CurrentLine == NULL ) return;

	color = ReturnLayerColor(CurrentLine->m_Layer) ^ HIGHT_LIGHT_FLAG;

	if( erase )
	{
		segment = CurrentLine;
		while ( segment )
		{
			if ( ! segment->IsNull() )		// Redraw if segment lengtht != 0
				RedrawOneStruct(panel,DC, segment, g_XorMode, color);
			segment = (EDA_DrawLineStruct*)segment->Pnext;
		}
	}

wxPoint endpos = panel->m_Parent->GetScreen()->m_Curseur;
	if( g_HVLines )	/* Coerce the line to vertical or horizontal one: */
	{
		 ComputeBreakPoint( CurrentLine, endpos);
	}

	else CurrentLine->m_End = endpos;
		
	segment = CurrentLine;
	while ( segment )
	{
		if ( ! segment->IsNull() )		// Redraw if segment lengtht != 0
			RedrawOneStruct(panel,DC, segment, g_XorMode, color);
		segment = (EDA_DrawLineStruct*)segment->Pnext;
	}
}


/**************************************************************************************/
static void ComputeBreakPoint( EDA_DrawLineStruct * segment, const wxPoint & new_pos )
/**************************************************************************************/
/* compute the middle coordinate for 2 segments, from the start point to new_pos
	with the 2 segments kept H or V only
*/
{
EDA_DrawLineStruct  * nextsegment = (EDA_DrawLineStruct *)segment->Pnext;
wxPoint middle_position = new_pos;
	
	if( nextsegment == NULL ) return;
#if 0		
	if (ABS(middle_position.x - segment->m_Start.x) < ABS(middle_position.y - segment->m_Start.y))
		middle_position.x = segment->m_Start.x;
	else
		middle_position.y = segment->m_Start.y;
#else
int iDx = segment->m_End.x - segment->m_Start.x;
int iDy = segment->m_End.y - segment->m_Start.y;
	if ( iDy != 0 )			// keep the first segment orientation (currently horizontal)
	{
		middle_position.x = segment->m_Start.x;  
	}
	else if ( iDx != 0 )	// keep the first segment orientation (currently vertical)
	{
		middle_position.y = segment->m_Start.y;  
	}
	else
	{
		if (ABS(middle_position.x - segment->m_Start.x) < ABS(middle_position.y - segment->m_Start.y))
			middle_position.x = segment->m_Start.x;
		else
			middle_position.y = segment->m_Start.y;
	}
#endif
	
	segment->m_End = middle_position;
	
	nextsegment->m_Start = middle_position;
	nextsegment->m_End = new_pos;
}

/*****************************************************************************/
static void Show_Polyline_in_Ghost(WinEDA_DrawPanel * panel, wxDC * DC, bool erase)
/*****************************************************************************/
/*  Dessin du du Polyline Fantome lors des deplacements du curseur
*/
{
DrawPolylineStruct * NewPoly =
		(DrawPolylineStruct *)panel->m_Parent->GetScreen()->m_CurrentItem;
int color;
wxPoint endpos;

	endpos = panel->m_Parent->GetScreen()->m_Curseur;
	color = ReturnLayerColor(NewPoly->m_Layer);

	GRSetDrawMode(DC, g_XorMode);

	if( g_HVLines )
		{
		/* Coerce the line to vertical or horizontal one: */
		if (ABS(endpos.x - NewPoly->m_Points[NewPoly->m_NumOfPoints * 2 - 2]) <
			 ABS(endpos.y - NewPoly->m_Points[NewPoly->m_NumOfPoints * 2 - 1]))
			endpos.x = NewPoly->m_Points[NewPoly->m_NumOfPoints * 2 - 2];
		else
			endpos.y = NewPoly->m_Points[NewPoly->m_NumOfPoints * 2 - 1];
		}

	NewPoly->m_NumOfPoints++;
	if( erase )
		RedrawOneStruct(panel,DC, NewPoly, g_XorMode, color);

	NewPoly->m_Points[NewPoly->m_NumOfPoints * 2 - 2] = endpos.x;
	NewPoly->m_Points[NewPoly->m_NumOfPoints * 2 - 1] = endpos.y;
	RedrawOneStruct(panel,DC, NewPoly, g_XorMode, color);
	NewPoly->m_NumOfPoints--;
}

/**********************************************************/
void WinEDA_SchematicFrame::DeleteCurrentSegment(wxDC * DC)
/**********************************************************/
/*
Routine effacant le dernier trait trace, ou l'element pointe par la souris
*/
{

	g_ItemToRepeat = NULL;

	if( (GetScreen()->m_CurrentItem == NULL) ||
		((GetScreen()->m_CurrentItem->m_Flags & IS_NEW) == 0) )
	{
		return;
	}

	/* Trace en cours: annulation */
	if (GetScreen()->m_CurrentItem->m_StructType == DRAW_POLYLINE_STRUCT_TYPE)
	{
		Show_Polyline_in_Ghost(DrawPanel, DC, FALSE); /* Effacement du trace en cours */
	}

	else
	{
		Segment_in_Ghost(DrawPanel, DC, FALSE); /* Effacement du trace en cours */
	}

	EraseStruct(GetScreen()->m_CurrentItem, GetScreen());
	DrawPanel->ManageCurseur = NULL;
	GetScreen()->m_CurrentItem = NULL;
}


/***************************************************************************/
DrawJunctionStruct * WinEDA_SchematicFrame::CreateNewJunctionStruct(
		wxDC * DC, const wxPoint & pos, bool PutInUndoList)
/***************************************************************************/
/* Routine to create new connection struct.
*/
{
DrawJunctionStruct *NewJunction;

	NewJunction = new DrawJunctionStruct(pos);

	g_ItemToRepeat = NewJunction;

	DrawPanel->CursorOff(DC);	// Erase schematic cursor
	RedrawOneStruct(DrawPanel,DC, NewJunction, GR_DEFAULT_DRAWMODE);
	DrawPanel->CursorOn(DC);	// Display schematic cursor

	NewJunction->Pnext = GetScreen()->EEDrawList;
	GetScreen()->EEDrawList = NewJunction;
	GetScreen()->SetModify();
	if ( PutInUndoList )
		SaveCopyInUndoList(NewJunction, IS_NEW);
	return(NewJunction);
}

/**************************************************************************/
EDA_BaseStruct *WinEDA_SchematicFrame::CreateNewNoConnectStruct(wxDC * DC)
/**************************************************************************/
/*Routine to create new NoConnect struct. ( Symbole de Non Connexion)
*/
{
DrawNoConnectStruct *NewNoConnect;

	NewNoConnect = new DrawNoConnectStruct(GetScreen()->m_Curseur);
	g_ItemToRepeat = NewNoConnect;

	DrawPanel->CursorOff(DC);	// Erase schematic cursor
	RedrawOneStruct(DrawPanel,DC, NewNoConnect,  GR_DEFAULT_DRAWMODE);
	DrawPanel->CursorOn(DC);	// Display schematic cursor

	NewNoConnect->Pnext = GetScreen()->EEDrawList;
	GetScreen()->EEDrawList = NewNoConnect;
	GetScreen()->SetModify();
	SaveCopyInUndoList(NewNoConnect, IS_NEW);
	return(NewNoConnect);
}


/*****************************************************************/
static void AbortCreateNewLine(WinEDA_DrawPanel * Panel, wxDC * DC)
/*****************************************************************/
/* Abort function for wire, bus or line creation
*/
{
SCH_SCREEN * Screen = (SCH_SCREEN *)Panel->GetScreen();

	if( Screen->m_CurrentItem)  /* trace en cours */
	{
		Panel->ManageCurseur(Panel, DC, FALSE);
		Panel->ManageCurseur = NULL;
		Panel->ForceCloseManageCurseur = NULL;
		EraseStruct(Screen->m_CurrentItem,(SCH_SCREEN*) Screen);
		Screen->m_CurrentItem = NULL;
		RestoreOldWires(Screen);
	}

	else g_ItemToRepeat = NULL;	// Fin de commande generale
		
	/* Clear m_Flags wich is used in edit functions: */
	EDA_BaseStruct * item = Screen->EEDrawList;
	while ( item )
	{
		item->m_Flags = 0;
		item = item->Pnext;
	}
}


/***************************************************/
void WinEDA_SchematicFrame::RepeatDrawItem(wxDC *DC)
/***************************************************/
/* Routine de recopie du dernier element dessine
	Les elements duplicables sont
		fils, bus, traits, textes, labels
		Les labels termines par un nombre seront incrementes 
*/
{
wxPoint new_pos;

	if( g_ItemToRepeat == NULL ) return;

	switch( g_ItemToRepeat->m_StructType )
	{
		case DRAW_JUNCTION_STRUCT_TYPE:
			#undef STRUCT
			#define STRUCT ((DrawJunctionStruct*) g_ItemToRepeat)
			g_ItemToRepeat = STRUCT->GenCopy();
			STRUCT->m_Pos += g_RepeatStep;
			new_pos = STRUCT->m_Pos;
			break;

		case DRAW_NOCONNECT_STRUCT_TYPE:
			#undef STRUCT
			#define STRUCT ((DrawNoConnectStruct*) g_ItemToRepeat)
			g_ItemToRepeat = STRUCT->GenCopy();
			STRUCT->m_Pos += g_RepeatStep;
			new_pos = STRUCT->m_Pos;
			break;

		case DRAW_TEXT_STRUCT_TYPE:
			#undef STRUCT
			#define STRUCT ((DrawTextStruct*) g_ItemToRepeat)
			g_ItemToRepeat = STRUCT->GenCopy();
			STRUCT->m_Pos += g_RepeatStep;
			new_pos = STRUCT->m_Pos;
			/*** Increment du numero de label ***/
			IncrementLabelMember(STRUCT->m_Text);
			break;

 
		case DRAW_LABEL_STRUCT_TYPE:
			#undef STRUCT
			#define STRUCT ((DrawLabelStruct*) g_ItemToRepeat)
			g_ItemToRepeat = STRUCT->GenCopy();
			STRUCT->m_Pos += g_RepeatStep;
			new_pos = STRUCT->m_Pos;
			/*** Increment du numero de label ***/
			IncrementLabelMember(STRUCT->m_Text);
			break;


		case DRAW_GLOBAL_LABEL_STRUCT_TYPE:
			#undef STRUCT
			#define STRUCT ((DrawGlobalLabelStruct*) g_ItemToRepeat)
			g_ItemToRepeat = STRUCT->GenCopy();
			STRUCT->m_Pos += g_RepeatStep;
			new_pos = STRUCT->m_Pos;
			/*** Increment du numero de label ***/
			IncrementLabelMember(STRUCT->m_Text);
			break;

		case DRAW_SEGMENT_STRUCT_TYPE:
			#undef STRUCT
			#define STRUCT ((EDA_DrawLineStruct*) g_ItemToRepeat)
			g_ItemToRepeat = STRUCT->GenCopy();
			STRUCT->m_Start += g_RepeatStep;
			new_pos = STRUCT->m_Start;
			STRUCT->m_End += g_RepeatStep;
			break;

		case DRAW_BUSENTRY_STRUCT_TYPE:
			#undef STRUCT
			#define STRUCT ((DrawBusEntryStruct*) g_ItemToRepeat)
			g_ItemToRepeat = STRUCT->GenCopy();
			STRUCT->m_Pos += g_RepeatStep;
			new_pos = STRUCT->m_Pos;
			break;

		case DRAW_LIB_ITEM_STRUCT_TYPE:	// In repeat command the new component is put in move mode
			#undef STRUCT
			#define STRUCT ((EDA_SchComponentStruct*) g_ItemToRepeat)
			// Create the duplicate component, position = mouse cursor
			g_ItemToRepeat = STRUCT->GenCopy();
			new_pos.x = m_CurrentScreen->m_Curseur.x - STRUCT->m_Pos.x;
			new_pos.y = m_CurrentScreen->m_Curseur.y - STRUCT->m_Pos.y;
			STRUCT->m_Pos = m_CurrentScreen->m_Curseur;
			STRUCT->m_Flags = IS_NEW;
			STRUCT->m_TimeStamp = GetTimeStamp();
			for( int ii = 0; ii < NUMBER_OF_FIELDS; ii++ )
			{
				STRUCT->m_Field[ii].m_Pos +=new_pos;
			}
			RedrawOneStruct(DrawPanel, DC, STRUCT, g_XorMode);
			StartMovePart(STRUCT, DC);
			return;
			break;

		default:
			g_ItemToRepeat = NULL;
			DisplayError(this, wxT("Repeat Type Error"), 10);
			break;
	}

	if ( g_ItemToRepeat )
	{
		g_ItemToRepeat->Pnext = GetScreen()->EEDrawList;
		GetScreen()->EEDrawList = g_ItemToRepeat;
		TestDanglingEnds(GetScreen()->EEDrawList, NULL);
		RedrawOneStruct(DrawPanel,DC, g_ItemToRepeat, GR_DEFAULT_DRAWMODE);
		SaveCopyInUndoList(g_ItemToRepeat, IS_NEW);
		g_ItemToRepeat->m_Flags = 0;
//		GetScreen()->Curseur = new_pos; 
//		GRMouseWarp(DrawPanel, DrawPanel->CursorScreenPosition() );
	}
}


/******************************************/
void IncrementLabelMember(wxString & name)
/******************************************/
/* Routine incrementant les labels, c'est a dire pour les textes finissant
par un nombre, ajoutant <RepeatDeltaLabel> a ce nombre
*/
{
int ii, nn;
long number = 0;
	
 	ii = name.Len() - 1; nn = 0;
	if( !isdigit(name.GetChar(ii)) ) return;

	while( (ii >= 0) && isdigit(name.GetChar(ii)) ) { ii--; nn++ ; }
	ii++;	/* digits are starting at ii position */
wxString litt_number = name.Right(nn);
	if ( litt_number.ToLong(&number) )
	{
		number += g_RepeatDeltaLabel;
		name.Remove(ii); name << number;
	}
}

/***************************************************************************/
static bool IsTerminalPoint(SCH_SCREEN * screen, const wxPoint & pos, int layer)
/***************************************************************************/
/* Returne TRUE si pos est un point possible pour terminer automatiquement un
segment, c'est a dire pour
	- type WIRE, si il y a
		- une jonction
		- ou une pin
		- ou une extr<EFBFBD>mit<EFBFBD> unique de fil

	- type BUS, si il y a
		- ou une extr<EFBFBD>mit<EFBFBD> unique de BUS
*/
{
EDA_BaseStruct * item;
LibDrawPin * pin;
EDA_SchComponentStruct * LibItem = NULL;
DrawSheetLabelStruct * pinsheet;
wxPoint itempos;

	switch ( layer )
		{
		case LAYER_BUS:
			item = PickStruct(pos, screen->EEDrawList, BUSITEM);
			if ( item ) return TRUE;
			pinsheet = LocateAnyPinSheet(pos, screen->EEDrawList );
			if ( pinsheet && IsBusLabel(pinsheet->m_Text) )
			{
				itempos = pinsheet->m_Pos;
				if ( (itempos.x == pos.x) && (itempos.y == pos.y) )	return TRUE;
			}
			break;

		case LAYER_NOTES:
			item = PickStruct(pos, screen->EEDrawList, DRAWITEM);
			if ( item )
				return TRUE;
			break;

		case LAYER_WIRE:
			item = PickStruct(pos, screen->EEDrawList, RACCORDITEM |JUNCTIONITEM);
			if ( item ) return TRUE;

			pin = LocateAnyPin( screen->EEDrawList, pos, &LibItem );
			if ( pin && LibItem )
				{
				// calcul de la position exacte du point de connexion de la pin,
				// selon orientation du composant:
				itempos = LibItem->GetScreenCoord(pin->m_Pos);
				itempos.x += LibItem->m_Pos.x;
				itempos.y += LibItem->m_Pos.y;
				if ( (itempos.x == pos.x) && (itempos.y == pos.y) )	return TRUE;
				}

			item = PickStruct(pos, screen->EEDrawList, WIREITEM);
			if ( item ) return TRUE;

			item = PickStruct(pos, screen->EEDrawList, LABELITEM);
			if ( item && (item->m_StructType != DRAW_TEXT_STRUCT_TYPE) &&
				( ((DrawGlobalLabelStruct*)item)->m_Pos.x == pos.x) &&
				( ((DrawGlobalLabelStruct*)item)->m_Pos.y == pos.y) )
					return TRUE;

			pinsheet = LocateAnyPinSheet( pos, screen->EEDrawList );
			if ( pinsheet && ! IsBusLabel(pinsheet->m_Text) )
			{
				itempos = pinsheet->m_Pos;
				if ( (itempos.x == pos.x) && (itempos.y == pos.y) )	return TRUE;
			}

			break;

		default:
			break;
		}

	return FALSE;
}


/****************************************************************/
bool IsJunctionNeeded (WinEDA_SchematicFrame * frame, wxPoint & pos )
/****************************************************************/
/* Return True when a wire is located at pos "pos" if
	- there is no junction.
	- The wire has no ends at pos "pos",
		and therefore it is considered as no connected.
	- One (or more) wire has one end at pos "pos"
	or
	- a pin is on location pos
*/
{
	if ( PickStruct(pos,frame->GetScreen()->EEDrawList, JUNCTIONITEM ) ) return FALSE;
	
	if ( PickStruct(pos,frame->GetScreen()->EEDrawList, WIREITEM |EXCLUDE_WIRE_BUS_ENDPOINTS ) )
	{
		if ( PickStruct(pos,frame->GetScreen()->EEDrawList, WIREITEM |WIRE_BUS_ENDPOINTS_ONLY ) )
			return TRUE;
		if ( frame->LocatePinEnd(frame->GetScreen()->EEDrawList, pos) )
			return TRUE;
	}

	return FALSE;
}