kicad/eeschema/class_drawsheet.cpp

862 lines
25 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: DrawSheet.cpp
// Purpose: member functions for DrawSheetStruct and DrawSheetLabelStruct
// header = class_screen.h
// Author: jean-pierre Charras
// Modified by:
// Created: 08/02/2006 18:37:02
// RCS-ID:
// Copyright: License GNU
// Licence:
/////////////////////////////////////////////////////////////////////////////
// For compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif
#include "fctsys.h"
#include "gr_basic.h"
#include "common.h"
#include "program.h"
#include "libcmp.h"
#include "general.h"
#include "protos.h"
#include "schframe.h"
/***********************************************************/
DrawSheetStruct::DrawSheetStruct( const wxPoint& pos ) :
EDA_BaseStruct( DRAW_SHEET_STRUCT_TYPE )
/***********************************************************/
{
m_Label = NULL;
m_NbLabel = 0;
m_Layer = LAYER_SHEET;
m_Pos = pos;
m_TimeStamp = GetTimeStamp();
m_SheetNameSize = m_FileNameSize = 60;
m_AssociatedScreen = NULL;
m_SheetName.Printf( wxT( "Sheet%8.8lX" ), m_TimeStamp );
m_FileName.Printf( wxT( "file%8.8lX.sch" ), m_TimeStamp );
m_SheetNumber = 1;
m_NumberOfSheets = 1;
}
/**************************************/
DrawSheetStruct::~DrawSheetStruct()
/**************************************/
{
DrawSheetLabelStruct* label = m_Label, * next_label;
while( label )
{
next_label = (DrawSheetLabelStruct*) label->Pnext;
delete label;
label = next_label;
}
//also, look at the associated sheet & its reference count
//perhaps it should be deleted also.
if( m_AssociatedScreen )
{
m_AssociatedScreen->m_RefCount--;
if( m_AssociatedScreen->m_RefCount == 0 )
delete m_AssociatedScreen;
}
}
/***********************************************/
DrawSheetStruct* DrawSheetStruct::GenCopy()
/***********************************************/
/* creates a copy of a sheet
* The linked data itself (EEDrawList) is not duplicated
*/
{
DrawSheetStruct* newitem = new DrawSheetStruct( m_Pos );
newitem->m_Size = m_Size;
newitem->m_Parent = m_Parent;
newitem->m_TimeStamp = GetTimeStamp();
newitem->m_FileName = m_FileName;
newitem->m_FileNameSize = m_FileNameSize;
newitem->m_SheetName = m_SheetName;
newitem->m_SheetNameSize = m_SheetNameSize;
newitem->m_Label = NULL;
DrawSheetLabelStruct* Slabel = NULL, * label = m_Label;
if( label )
{
Slabel = newitem->m_Label = label->GenCopy();
Slabel->m_Parent = newitem;
label = (DrawSheetLabelStruct*) label->Pnext;
}
while( label )
{
Slabel->Pnext = label->GenCopy();
Slabel = (DrawSheetLabelStruct*) Slabel->Pnext;
Slabel->m_Parent = newitem;
label = (DrawSheetLabelStruct*) label->Pnext;
}
/* don't copy screen data - just reference it. */
newitem->m_AssociatedScreen = m_AssociatedScreen;
if( m_AssociatedScreen )
m_AssociatedScreen->m_RefCount++;
return newitem;
}
/**********************************************************/
void DrawSheetStruct::SwapData( DrawSheetStruct* copyitem )
/**********************************************************/
/* Used if undo / redo command:
* swap data between this and copyitem
*/
{
EXCHG( m_Pos, copyitem->m_Pos );
EXCHG( m_Size, copyitem->m_Size );
EXCHG( m_SheetName, copyitem->m_SheetName );
EXCHG( m_SheetNameSize, copyitem->m_SheetNameSize );
EXCHG( m_FileNameSize, copyitem->m_FileNameSize );
EXCHG( m_Label, copyitem->m_Label );
EXCHG( m_NbLabel, copyitem->m_NbLabel );
}
/****************************************************************/
void DrawSheetStruct::Place( WinEDA_DrawFrame* frame, wxDC* DC )
/****************************************************************/
{
/* Placement en liste des structures si nouveau composant:*/
if( m_Flags & IS_NEW )
{
if( !( (WinEDA_SchematicFrame*) frame )->EditSheet( this, DC ) )
{
frame->GetScreen()->SetCurItem( NULL );
frame->DrawPanel->ManageCurseur = NULL;
frame->DrawPanel->ForceCloseManageCurseur = NULL;
RedrawOneStruct( frame->DrawPanel, DC, this, g_XorMode );
delete this;
return;
}
}
EDA_BaseStruct::Place( frame, DC ); //puts it on the EEDrawList.
}
/********************************************************************/
void DrawSheetStruct::CleanupSheet( WinEDA_SchematicFrame* frame, wxDC* DC )
/********************************************************************/
/* Delete pinsheets which are not corresponding to a hierarchal label
* if DC != NULL, redraw Sheet
*/
{
DrawSheetLabelStruct* Pinsheet, * NextPinsheet;
if( !IsOK( frame, _( "Ok to cleanup this sheet" ) ) )
return;
Pinsheet = m_Label;
while( Pinsheet )
{
/* Search Hlabel corresponding to this Pinsheet */
EDA_BaseStruct* DrawStruct = m_AssociatedScreen->EEDrawList;
DrawHierLabelStruct* HLabel = NULL;
for( ; DrawStruct != NULL; DrawStruct = DrawStruct->Pnext )
{
if( DrawStruct->Type() != DRAW_HIER_LABEL_STRUCT_TYPE )
continue;
HLabel = (DrawHierLabelStruct*) DrawStruct;
if( Pinsheet->m_Text.CmpNoCase( HLabel->m_Text ) == 0 )
break; // Found!
HLabel = NULL;
}
NextPinsheet = (DrawSheetLabelStruct*) Pinsheet->Pnext;
if( HLabel == NULL ) // Hlabel not found: delete pinsheet
{
frame->GetScreen()->SetModify();
frame->DeleteSheetLabel( DC, Pinsheet );
}
Pinsheet = NextPinsheet;
}
}
/**************************************************************************************/
void DrawSheetStruct::Draw( WinEDA_DrawPanel* panel, wxDC* DC, const wxPoint& offset,
int DrawMode, int Color )
/**************************************************************************************/
/* Draw the hierarchical sheet shape */
{
DrawSheetLabelStruct* SheetLabelStruct;
int txtcolor;
wxString Text;
int color;
wxPoint pos = m_Pos + offset;
int LineWidth = g_DrawMinimunLineWidth;
if( Color >= 0 )
color = Color;
else
color = ReturnLayerColor( m_Layer );
GRSetDrawMode( DC, DrawMode );
GRRect( &panel->m_ClipBox, DC, pos.x, pos.y,
pos.x + m_Size.x, pos.y + m_Size.y, LineWidth, color );
/* Draw text : SheetName */
if( Color > 0 )
txtcolor = Color;
else
txtcolor = ReturnLayerColor( LAYER_SHEETNAME );
Text = wxT( "Sheet: " ) + m_SheetName;
DrawGraphicText( panel, DC,
wxPoint( pos.x, pos.y - 8 ), txtcolor,
Text, TEXT_ORIENT_HORIZ, wxSize( m_SheetNameSize, m_SheetNameSize ),
GR_TEXT_HJUSTIFY_LEFT, GR_TEXT_VJUSTIFY_BOTTOM, LineWidth );
/* Draw text : FileName */
if( Color >= 0 )
txtcolor = Color;
else
txtcolor = ReturnLayerColor( LAYER_SHEETFILENAME );
Text = wxT( "File: " ) + m_FileName;
DrawGraphicText( panel, DC,
wxPoint( pos.x, pos.y + m_Size.y + 4 ),
txtcolor,
Text, TEXT_ORIENT_HORIZ, wxSize( m_FileNameSize, m_FileNameSize ),
GR_TEXT_HJUSTIFY_LEFT, GR_TEXT_VJUSTIFY_TOP, LineWidth );
/* Draw text : SheetLabel */
SheetLabelStruct = m_Label;
while( SheetLabelStruct != NULL )
{
SheetLabelStruct->Draw( panel, DC, offset, DrawMode, Color );
SheetLabelStruct = (DrawSheetLabelStruct*) (SheetLabelStruct->Pnext);
}
}
/**************************************************************************************/
void DrawSheetStruct::DeleteAnnotation( bool recurse )
/**************************************************************************************/
{
if( recurse && m_AssociatedScreen )
{
EDA_BaseStruct* strct = m_AssociatedScreen->EEDrawList;
for( ; strct; strct = strct->Pnext )
{
if( strct->Type() == DRAW_SHEET_STRUCT_TYPE )
{
DrawSheetStruct* sheet = (DrawSheetStruct*) strct;
sheet->DeleteAnnotation( recurse );
}
}
}
EDA_BaseStruct* comp = m_AssociatedScreen->EEDrawList;
for( ; comp; comp = comp->Pnext )
{
if( comp->Type() == DRAW_LIB_ITEM_STRUCT_TYPE )
{
( (EDA_SchComponentStruct*) comp )->ClearAnnotation();
}
}
}
/*******************************************************************/
int DrawSheetStruct::ComponentCount()
/*******************************************************************/
{
//count our own components, without the power components.
/* Routine retournant le nombre de composants dans le schema,
* powers non comprises */
int n = 0;
if( m_AssociatedScreen )
{
EDA_BaseStruct* bs;
for( bs = m_AssociatedScreen->EEDrawList; bs != NULL; bs = bs->Pnext )
{
if( bs->Type() == DRAW_LIB_ITEM_STRUCT_TYPE )
{
DrawPartStruct* Cmp = (DrawPartStruct*) bs;
if( Cmp->m_Field[VALUE].m_Text.GetChar( 0 ) != '#' )
n++;
}
if( bs->Type() == DRAW_SHEET_STRUCT_TYPE )
{
DrawSheetStruct* sheet = (DrawSheetStruct*) bs;
n += sheet->ComponentCount();
}
}
}
return n;
}
/*******************************************************************************/
bool DrawSheetStruct::SearchHierarchy( wxString filename, SCH_SCREEN** screen )
/*******************************************************************************/
{
//search the existing hierarchy for an instance of screen "FileName".
if( m_AssociatedScreen )
{
EDA_BaseStruct* strct = m_AssociatedScreen->EEDrawList;
while( strct )
{
if( strct->Type() == DRAW_SHEET_STRUCT_TYPE )
{
DrawSheetStruct* ss = (DrawSheetStruct*) strct;
if( ss->m_AssociatedScreen &&
ss->m_AssociatedScreen->m_FileName.CmpNoCase( filename ) == 0 )
{
*screen = ss->m_AssociatedScreen;
return true;
}
if( ss->SearchHierarchy( filename, screen ) )
return true;
}
strct = strct->Pnext;
}
}
return false;
}
/*******************************************************************************/
bool DrawSheetStruct::LocatePathOfScreen( SCH_SCREEN* screen, DrawSheetPath* list )
/*******************************************************************************/
{
//search the existing hierarchy for an instance of screen "FileName".
//don't bother looking at the root sheet - it must be unique,
//no other references to its m_s otherwise there would be loops
//in the heirarchy.
//search the existing hierarchy for an instance of screen "FileName".
if( m_AssociatedScreen )
{
list->Push( this );
if( m_AssociatedScreen == screen )
return true;
EDA_BaseStruct* strct = m_AssociatedScreen->EEDrawList;
while( strct )
{
if( strct->Type() == DRAW_SHEET_STRUCT_TYPE )
{
DrawSheetStruct* ss = (DrawSheetStruct*) strct;
if( ss->LocatePathOfScreen( screen, list ) )
return true;
}
strct = strct->Pnext;
}
list->Pop();
}
return false;
}
/*******************************************************************************/
bool DrawSheetStruct::Load( WinEDA_SchematicFrame* frame )
/*******************************************************************************/
{
bool success = true;
if( !m_AssociatedScreen )
{
SCH_SCREEN* screen = NULL;
g_RootSheet->SearchHierarchy( m_FileName, &screen );
if( screen )
{
m_AssociatedScreen = screen;
m_AssociatedScreen->m_RefCount++;
//do not need to load the sub-sheets - this has already been done.
}
else
{
m_AssociatedScreen = new SCH_SCREEN( SCHEMATIC_FRAME );
m_AssociatedScreen->m_RefCount++;
success = frame->LoadOneEEFile( m_AssociatedScreen, m_FileName );
if( success )
{
EDA_BaseStruct* bs = m_AssociatedScreen->EEDrawList;
while( bs )
{
if( bs->Type() == DRAW_SHEET_STRUCT_TYPE )
{
DrawSheetStruct* sheetstruct = (DrawSheetStruct*) bs;
if( !sheetstruct->Load( frame ) )
success = false;
}
bs = bs->Pnext;
}
}
}
}
return success;
}
/*******************************************************************************/
int DrawSheetStruct::CountSheets()
/*******************************************************************************/
{
int count = 1; //1 = this!!
if( m_AssociatedScreen )
{
EDA_BaseStruct* strct = m_AssociatedScreen->EEDrawList;
for( ; strct; strct = strct->Pnext )
{
if( strct->Type() == DRAW_SHEET_STRUCT_TYPE )
{
DrawSheetStruct* ss = (DrawSheetStruct*) strct;
count += ss->CountSheets();
}
}
}
return count;
}
/******************************************/
wxString DrawSheetStruct::GetFileName( void )
/******************************************/
{
return m_FileName;
}
/************************************************************/
void DrawSheetStruct::SetFileName( const wxString& aFilename )
/************************************************************/
{
m_FileName = aFilename;
}
/** Function ChangeFileName
* Set a new filename and manage data and associated screen
* The main difficulty is the filename change in a complex hierarchy.
* - if new filename is not already used: change to the new name (and if an existing file is found, load it on request)
* - if new filename is already used (a complex hierarchy) : add the sheet to the complex hierarchy.
*/
bool DrawSheetStruct::ChangeFileName( WinEDA_SchematicFrame * aFrame, const wxString& aFileName )
{
if( (GetFileName() == aFileName) && m_AssociatedScreen )
return true;
SCH_SCREEN* Screen_to_use = NULL;
wxString msg;
bool LoadFromFile = false;
if( g_RootSheet->SearchHierarchy( aFileName, &Screen_to_use ) ) //do we reload the data from the existing hierarchy
{
msg.Printf( _(
"A Sub Hierarchy named %s exists, Use it (The data in this sheet will be replaced)?" ),
aFileName.GetData() );
if( ! IsOK( NULL, msg ) )
{
DisplayInfo(NULL, _("Sheet Filename Renaming Aborted"));
return false;
}
}
else if( wxFileExists( aFileName ) ) //do we reload the data from an existing file
{
msg.Printf( _(
"A file named %s exists, load it (otherwise keep current sheet data if possible)?" ),
aFileName.GetData() );
if( IsOK( NULL, msg ) )
{
LoadFromFile = true;
m_AssociatedScreen->m_RefCount--; //be careful with these
if( m_AssociatedScreen->m_RefCount == 0 )
SAFE_DELETE( m_AssociatedScreen );
m_AssociatedScreen = NULL; //will be created later
}
}
// if an associated screen exists, shared between this sheet and others sheets, what we do ?
if( m_AssociatedScreen && ( m_AssociatedScreen->m_RefCount > 1 ))
{
msg = _("This sheet uses shared data in a complex hierarchy" ) ;
msg << wxT("\n");
msg << _("Do we convert it in a simple hierarchical sheet (otherwise delete current sheet data)");
if( IsOK( NULL, msg ) )
{
LoadFromFile = true;
wxString oldfilename = m_AssociatedScreen->m_FileName;
m_AssociatedScreen->m_FileName = aFileName;
aFrame->SaveEEFile( m_AssociatedScreen, FILE_SAVE_AS );
m_AssociatedScreen->m_FileName = oldfilename;
}
m_AssociatedScreen->m_RefCount--; //be careful with these
m_AssociatedScreen = NULL; //will be created later
}
SetFileName( aFileName );
// if we use new data (from file or from internal hierarchy), delete the current sheet data
if( m_AssociatedScreen && (LoadFromFile || Screen_to_use) )
{
m_AssociatedScreen->m_RefCount--;
if( m_AssociatedScreen->m_RefCount == 0 )
SAFE_DELETE( m_AssociatedScreen );
m_AssociatedScreen = NULL; //so that we reload..
}
if ( LoadFromFile )
Load( aFrame );
else if ( Screen_to_use )
{
m_AssociatedScreen = Screen_to_use;
m_AssociatedScreen->m_RefCount++;
}
//just make a new screen if needed.
if( !m_AssociatedScreen )
{
m_AssociatedScreen = new SCH_SCREEN( SCHEMATIC_FRAME );
m_AssociatedScreen->m_RefCount++; //be careful with these
}
m_AssociatedScreen->m_FileName = aFileName;
return true;
}
/************************/
/* DrawSheetLabelStruct */
/************************/
/*******************************************************************/
DrawSheetLabelStruct::DrawSheetLabelStruct( DrawSheetStruct* parent,
const wxPoint& pos, const wxString& text ) :
EDA_BaseStruct( DRAW_SHEETLABEL_STRUCT_TYPE )
, EDA_TextStruct( text )
/*******************************************************************/
{
m_Layer = LAYER_SHEETLABEL;
m_Parent = parent;
m_Pos = pos;
m_Edge = 0;
m_Shape = NET_INPUT;
m_IsDangling = TRUE;
}
/***********************************************************/
DrawSheetLabelStruct* DrawSheetLabelStruct::GenCopy()
/***********************************************************/
{
DrawSheetLabelStruct* newitem =
new DrawSheetLabelStruct( (DrawSheetStruct*) m_Parent, m_Pos, m_Text );
newitem->m_Edge = m_Edge;
newitem->m_Shape = m_Shape;
return newitem;
}
/********************************************************************************************/
void DrawSheetLabelStruct::Draw( WinEDA_DrawPanel* panel, wxDC* DC, const wxPoint& offset,
int DrawMode, int Color )
/********************************************************************************************/
/* Routine de dessin des Labels type hierarchie */
{
int side, txtcolor;
int posx, tposx, posy, size2;
wxSize size;
int NbSegm, coord[20];
int LineWidth = g_DrawMinimunLineWidth;
if( Color >= 0 )
txtcolor = Color;
else
txtcolor = ReturnLayerColor( m_Layer );
GRSetDrawMode( DC, DrawMode );
posx = m_Pos.x + offset.x; posy = m_Pos.y + offset.y; size = m_Size;
if( !m_Text.IsEmpty() )
{
if( m_Edge )
{
tposx = posx - size.x;
side = GR_TEXT_HJUSTIFY_RIGHT;
}
else
{
tposx = posx + size.x + (size.x / 8);
side = GR_TEXT_HJUSTIFY_LEFT;
}
DrawGraphicText( panel, DC, wxPoint( tposx, posy ), txtcolor,
m_Text, TEXT_ORIENT_HORIZ, size,
side, GR_TEXT_VJUSTIFY_CENTER, LineWidth );
}
/* dessin du symbole de connexion */
if( m_Edge )
{
size.x = -size.x;
size.y = -size.y;
}
coord[0] = posx; coord[1] = posy; size2 = size.x / 2;
NbSegm = 0;
switch( m_Shape )
{
case 0: /* input |> */
coord[2] = posx; coord[3] = posy - size2;
coord[4] = posx + size2; coord[5] = posy - size2;
coord[6] = posx + size.x; coord[7] = posy;
coord[8] = posx + size2; coord[9] = posy + size2;
coord[10] = posx; coord[11] = posy + size2;
coord[12] = coord[0]; coord[13] = coord[1];
NbSegm = 7;
break;
case 1: /* output <| */
coord[2] = posx + size2; coord[3] = posy - size2;
coord[4] = posx + size.x; coord[5] = posy - size2;
coord[6] = posx + size.x; coord[7] = posy + size2;
coord[8] = posx + size2; coord[9] = posy + size2;
coord[10] = coord[0]; coord[11] = coord[1];
NbSegm = 6;
break;
case 2: /* bidi <> */
case 3: /* TriSt <> */
coord[2] = posx + size2; coord[3] = posy - size2;
coord[4] = posx + size.x; coord[5] = posy;
coord[6] = posx + size2; coord[7] = posy + size2;
coord[8] = coord[0]; coord[9] = coord[1];
NbSegm = 5;
break;
default: /* unsp []*/
coord[2] = posx; coord[3] = posy - size2;
coord[4] = posx + size.x; coord[5] = posy - size2;
coord[6] = posx + size.x; coord[7] = posy + size2;
coord[8] = posx; coord[9] = posy + size2;
coord[10] = coord[0]; coord[11] = coord[1];
NbSegm = 6;
break;
}
int FillShape = FALSE;
GRPoly( &panel->m_ClipBox, DC, NbSegm, coord, FillShape, LineWidth, txtcolor, txtcolor ); /* Poly Non rempli */
}
/**********************************************/
/* class to handle a series of sheets *********/
/* a 'path' so to speak.. *********************/
/**********************************************/
DrawSheetPath::DrawSheetPath()
{
for( int i = 0; i<DSLSZ; i++ )
m_sheets[i] = NULL;
m_numSheets = 0;
}
int DrawSheetPath::Cmp( DrawSheetPath& d )
{
if( m_numSheets > d.m_numSheets )
return 1;
if( m_numSheets < d.m_numSheets )
return -1;
//otherwise, same number of sheets.
for( int i = 0; i<m_numSheets; i++ )
{
if( m_sheets[i]->m_TimeStamp > d.m_sheets[i]->m_TimeStamp )
return 1;
if( m_sheets[i]->m_TimeStamp < d.m_sheets[i]->m_TimeStamp )
return -1;
}
return 0;
}
DrawSheetStruct* DrawSheetPath::Last()
{
if( m_numSheets )
return m_sheets[m_numSheets - 1];
return NULL;
}
SCH_SCREEN* DrawSheetPath::LastScreen()
{
if( m_numSheets )
return m_sheets[m_numSheets - 1]->m_AssociatedScreen;
return NULL;
}
EDA_BaseStruct* DrawSheetPath::LastDrawList()
{
if( m_numSheets && m_sheets[m_numSheets - 1]->m_AssociatedScreen )
return m_sheets[m_numSheets - 1]->m_AssociatedScreen->EEDrawList;
return NULL;
}
void DrawSheetPath::Push( DrawSheetStruct* sheet )
{
wxASSERT( m_numSheets <= DSLSZ );
if( m_numSheets < DSLSZ )
{
m_sheets[m_numSheets] = sheet;
m_numSheets++;
}
}
DrawSheetStruct* DrawSheetPath::Pop()
{
if( m_numSheets > 0 )
{
m_numSheets--;
return m_sheets[m_numSheets];
}
return NULL;
}
wxString DrawSheetPath::Path()
{
wxString s, t;
s = wxT( "/" );
//start at 1 to avoid the root sheet,
//which does not need to be added to the path
//it's timestamp changes anyway.
for( int i = 1; i< m_numSheets; i++ )
{
t.Printf( _( "%8.8lX/" ), m_sheets[i]->m_TimeStamp );
s = s + t;
}
return s;
}
wxString DrawSheetPath::PathHumanReadable()
{
wxString s, t;
s = wxT( "/" );
//start at 1 to avoid the root sheet, as above.
for( int i = 1; i< m_numSheets; i++ )
{
s = s + m_sheets[i]->m_SheetName + wxT( "/" );
}
return s;
}
void DrawSheetPath::UpdateAllScreenReferences()
{
EDA_BaseStruct* t = LastDrawList();
while( t )
{
if( t->Type() == DRAW_LIB_ITEM_STRUCT_TYPE )
{
EDA_SchComponentStruct* d = (EDA_SchComponentStruct*) t;
d->m_Field[REFERENCE].m_Text = d->GetRef( this );
}
t = t->Pnext;
}
printf( "on sheet: %s \n", CONV_TO_UTF8( PathHumanReadable() ) );
}
bool DrawSheetPath::operator=( const DrawSheetPath& d1 )
{
m_numSheets = d1.m_numSheets;
int i;
for( i = 0; i<m_numSheets; i++ )
{
m_sheets[i] = d1.m_sheets[i];
}
for( ; i<DSLSZ; i++ )
{
m_sheets[i] = 0;
}
return true;
}
bool DrawSheetPath::operator==( const DrawSheetPath& d1 )
{
if( m_numSheets != d1.m_numSheets )
return false;
for( int i = 0; i<m_numSheets; i++ )
{
if( m_sheets[i] != d1.m_sheets[i] )
return false;
}
return true;
}
bool DrawSheetPath::operator!=( const DrawSheetPath& d1 )
{
if( m_numSheets != d1.m_numSheets )
return true;
for( int i = 0; i<m_numSheets; i++ )
{
if( m_sheets[i] != d1.m_sheets[i] )
return true;
}
return false;
}