check that the version of __sync_sub_and_fetch that returns a value is supported...

[wxWidgets.git] / src / mac / carbon / dcprint.cpp

diff --git a/src/mac/carbon/dcprint.cpp b/src/mac/carbon/dcprint.cpp
index 36d8757f67cd1e7f9b410b588de725c0608b510d..10c79a07eff7e1d71be425c5943e23757b0861f2 100644 (file)
--- a/src/mac/carbon/dcprint.cpp
+++ b/src/mac/carbon/dcprint.cpp
@@ -1,326 +1,369 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        dcprint.cpp
+// Name:        src/mac/carbon/dcprint.cpp

 // Purpose:     wxPrinterDC class
 // Author:      Julian Smart
 // Modified by:
 // Created:     01/02/97
 // RCS-ID:      $Id$
 // Purpose:     wxPrinterDC class
 // Author:      Julian Smart
 // Modified by:
 // Created:     01/02/97
 // RCS-ID:      $Id$

-// Copyright:   (c) Julian Smart and Markus Holzem
-// Licence:    wxWindows licence
+// Copyright:   (c) Julian Smart
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-#pragma implementation "dcprint.h"
-#endif
-

 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 

+#if wxUSE_PRINTING_ARCHITECTURE
+

 #ifdef __BORLANDC__
 #ifdef __BORLANDC__

-#pragma hdrstop
+    #pragma hdrstop

 #endif
 
 #endif
 

+#include "wx/dcprint.h"
+

 #ifndef WX_PRECOMP
 #ifndef WX_PRECOMP

+    #include "wx/msgdlg.h"
+    #include "wx/math.h"

 #endif
 
 #endif
 

-#include "wx/dcprint.h"
-#include "wx/msgdlg.h"
-#include <math.h>

 #include "wx/mac/uma.h"
 #include "wx/mac/uma.h"

+#include "wx/mac/private/print.h"
+#include "wx/mac/carbon/dcprint.h"
+#include "wx/graphics.h"

 
 

-#if !USE_SHARED_LIBRARY
-IMPLEMENT_CLASS(wxPrinterDC, wxDC)
-#endif
+IMPLEMENT_ABSTRACT_CLASS(wxPrinterDCImpl, wxGCDCImpl)

 
 

-GrafPtr macPrintFormerPort = NULL ;
+class wxNativePrinterDC
+{
+public :
+    wxNativePrinterDC() {}
+    virtual ~wxNativePrinterDC() {}
+    virtual bool StartDoc(  wxPrinterDC* dc , const wxString& message ) = 0;
+    virtual void EndDoc( wxPrinterDC* dc ) = 0;
+    virtual void StartPage( wxPrinterDC* dc ) = 0;
+    virtual void EndPage( wxPrinterDC* dc ) = 0;
+    virtual void GetSize( int *w , int *h) const = 0 ;
+    virtual wxSize GetPPI() const = 0 ;
+
+    // returns 0 in case of no Error, otherwise platform specific error codes
+    virtual wxUint32 GetStatus() const = 0 ;
+    bool Ok() { return GetStatus() == 0 ; }

 
 

-wxPrinterDC::wxPrinterDC(const wxPrintData& printdata)
+    static wxNativePrinterDC* Create(wxPrintData* data) ;
+} ;
+
+class wxMacCarbonPrinterDC : public wxNativePrinterDC

 {
 {

-       OSStatus err ;
-       wxString message ;
-       
-       m_printData = printdata ;
-       m_printData.ConvertToNative() ;
-
-#if TARGET_CARBON && PM_USE_SESSION_APIS
-       err = UMAPrOpen(&m_macPrintSession) ;
-       if ( err != noErr || m_macPrintSession == kPMNoData )
-#else
-       err = UMAPrOpen() ;
-       if ( err != noErr )
-#endif
-       {
-               message.Printf( "Print Error %d", err ) ;
-               wxMessageDialog dialog( NULL , message , "", wxICON_HAND | wxOK) ;
-               dialog.ShowModal();
-#if TARGET_CARBON && PM_USE_SESSION_APIS
-               UMAPrClose(&m_macPrintSession) ;
+public :
+    wxMacCarbonPrinterDC( wxPrintData* data ) ;
+    virtual ~wxMacCarbonPrinterDC() ;
+    virtual bool StartDoc(  wxPrinterDC* dc , const wxString& message ) ;
+    virtual void EndDoc( wxPrinterDC* dc ) ;
+    virtual void StartPage( wxPrinterDC* dc ) ;
+    virtual void EndPage( wxPrinterDC* dc ) ;
+    virtual wxUint32 GetStatus() const { return m_err ; }
+    virtual void GetSize( int *w , int *h) const ;
+    virtual wxSize GetPPI() const ;
+private :
+    wxCoord m_maxX ;
+    wxCoord m_maxY ;
+    wxSize  m_ppi ;
+    OSStatus m_err ;
+} ;
+
+wxMacCarbonPrinterDC::wxMacCarbonPrinterDC( wxPrintData* data )
+{
+    m_err = noErr ;
+    wxMacCarbonPrintData *native = (wxMacCarbonPrintData*) data->GetNativeData() ;
+
+    PMRect rPage;
+    m_err = PMGetAdjustedPageRect(native->m_macPageFormat, &rPage);
+    if ( m_err != noErr )
+        return;
+
+    m_maxX = wxCoord(rPage.right - rPage.left) ;
+    m_maxY = wxCoord(rPage.bottom - rPage.top);
+
+    PMResolution res;
+#if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5 
+    PMPrinter printer;
+    PMSessionGetCurrentPrinter(native->m_macPrintSession, &printer);
+    PMPrinterGetOutputResolution( printer, native->m_macPrintSettings, &res) ;

 #else
 #else

-               UMAPrClose() ;
+    m_err = PMGetResolution((PMPageFormat) (native->m_macPageFormat), &res);

 #endif
 #endif

-               m_ok = FALSE;
-               return;
-       }
-       
-#if !TARGET_CARBON
-       if ( ::PrValidate( m_printData.m_macPrintInfo ) )
-       {
-               ::PrStlDialog( m_printData.m_macPrintInfo ) ;
-               // the driver has changed in the mean time, should we pop up a page setup dialog ?
-       }
-       err = PrError() ;
-       if ( err != noErr )
-       {
-               message.Printf( "Print Error %d", err ) ;
-               wxMessageDialog dialog( NULL , message , "", wxICON_HAND | wxOK) ;
-               dialog.ShowModal();
-               UMAPrClose() ;
-               m_ok = FALSE;
-               return;
-       }
-       ::GetPort( &macPrintFormerPort ) ;
-       m_macPrintPort = ::PrOpenDoc( m_printData.m_macPrintInfo , NULL , NULL ) ;
-       err = PrError() ;
-       if ( err )
-       {
-               message.Printf( "Print Error %d", err ) ;
-               wxMessageDialog dialog( NULL , message , "", wxICON_HAND | wxOK) ;
-               dialog.ShowModal();
-               UMAPrClose() ;
-               m_ok = FALSE;
-               return;
-       }
-       // sets current port
-       m_macPort = (GrafPtr ) m_macPrintPort ;
-#else
-  #if PM_USE_SESSION_APIS
-    err = PMSessionBeginDocument(m_macPrintSession,
-              m_printData.m_macPrintSettings, 
-             m_printData.m_macPageFormat);
-    if ( err != noErr )
-  #else
-       m_macPrintPort = kPMNoReference ;
-    err = PMBeginDocument(
-             m_printData.m_macPrintSettings, 
-             m_printData.m_macPageFormat, 
-             &m_macPrintPort);
-    if ( err != noErr || m_macPrintPort == kPMNoReference )
-  #endif
+    m_ppi = wxSize(int(res.hRes), int(res.vRes));
+}
+
+wxMacCarbonPrinterDC::~wxMacCarbonPrinterDC()
+{
+}
+
+wxNativePrinterDC* wxNativePrinterDC::Create(wxPrintData* data)
+{
+    return new wxMacCarbonPrinterDC(data) ;
+}
+
+bool wxMacCarbonPrinterDC::StartDoc(  wxPrinterDC* dc , const wxString& WXUNUSED(message)  )
+{
+    if ( m_err )
+        return false ;
+
+    wxPrinterDCImpl *impl = (wxPrinterDCImpl*) dc->GetImpl();
+    wxMacCarbonPrintData *native = (wxMacCarbonPrintData*) impl->GetPrintData().GetNativeData() ;
+
+    m_err = PMSessionBeginCGDocumentNoDialog(native->m_macPrintSession,
+              native->m_macPrintSettings,
+              native->m_macPageFormat);    
+    if ( m_err != noErr )
+        return false;
+
+    PMRect rPage;
+    m_err = PMGetAdjustedPageRect(native->m_macPageFormat, &rPage);
+    if ( m_err != noErr )
+        return false ;
+
+    m_maxX = wxCoord(rPage.right - rPage.left) ;
+    m_maxY = wxCoord(rPage.bottom - rPage.top);
+
+    PMResolution res;
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 
+    if ( PMPrinterGetOutputResolution != NULL )

     {
     {

-               message.Printf( "Print Error %d", err ) ;
-               wxMessageDialog dialog( NULL , message , "", wxICON_HAND | wxOK) ;
-               dialog.ShowModal();
-  #if TARGET_CARBON && PM_USE_SESSION_APIS
-               UMAPrClose(&m_macPrintSession) ;
-  #else
-               UMAPrClose() ;
-  #endif
-               m_ok = FALSE;
-               return;
+        PMPrinter printer;
+        m_err = PMSessionGetCurrentPrinter(native->m_macPrintSession, &printer);
+        if ( m_err == noErr )
+            m_err = PMPrinterGetOutputResolution( printer, native->m_macPrintSettings, &res) ;

     }
     }

-       // sets current port
-       ::GetPort( &m_macPort ) ;
+    else

 #endif
 #endif

-       m_ok = TRUE ;
-       m_minY = m_minX = 0 ;
-#if TARGET_CARBON
-       PMRect rPaper;
-       
-       err = PMGetAdjustedPaperRect(m_printData.m_macPageFormat, &rPaper);
-    if ( err != noErr )

     {
     {

-               message.Printf( "Print Error %d", err ) ;
-               wxMessageDialog dialog( NULL , message , "", wxICON_HAND | wxOK) ;
-               dialog.ShowModal();
-  #if TARGET_CARBON && PM_USE_SESSION_APIS
-               UMAPrClose(&m_macPrintSession) ;
-  #else
-               UMAPrClose() ;
-  #endif
-               m_ok = FALSE;
-               return;
-    }
-       m_maxX = rPaper.right - rPaper.left ;
-       m_maxY = rPaper.bottom - rPaper.top ;
-#else
-       m_maxX = (**m_printData.m_macPrintInfo).rPaper.right - (**m_printData.m_macPrintInfo).rPaper.left ;
-       m_maxY = (**m_printData.m_macPrintInfo).rPaper.bottom - (**m_printData.m_macPrintInfo).rPaper.top ;
+#if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5 
+       m_err = PMGetResolution((PMPageFormat) (native->m_macPageFormat), &res);

 #endif
 #endif

+    }
+
+    m_ppi = wxSize(int(res.hRes), int(res.vRes));
+    return true ;

 }
 
 }
 

-wxPrinterDC::~wxPrinterDC(void)
+void wxMacCarbonPrinterDC::EndDoc( wxPrinterDC* dc )

 {
 {

-       OSStatus err ;
-       wxString message ;
-#if !TARGET_CARBON
-       if ( m_ok )
-       {
-               ::PrCloseDoc( m_macPrintPort  ) ;
-               err = PrError() ;
-               
-               if ( err == noErr )
-               {
-                       if ( (**m_printData.m_macPrintInfo).prJob.bJDocLoop == bSpoolLoop )
-                       {
-                               TPrStatus status ;
-                               ::PrPicFile( m_printData.m_macPrintInfo , NULL , NULL , NULL , &status ) ;
-                       }
-               }
-               else
-               {
-                       message.Printf( "Print Error %d", err ) ;
-                       wxMessageDialog dialog( NULL , message , "", wxICON_HAND | wxOK) ;
-                   dialog.ShowModal();
-               }
-               ::UMAPrClose() ;
-//       ::SetPort( macPrintFormerPort ) ;
-               ::SetPort( LMGetWMgrPort() ) ;
-       }
-#else
-       if ( m_ok ) 
-       {
-  #if PM_USE_SESSION_APIS
-           err = PMSessionEndDocument(m_macPrintSession);
-  #else
-           err = PMEndDocument(m_macPrintPort);
-  #endif
-       if ( err != noErr )
-       {
-                       message.Printf( "Print Error %d", err ) ;
-                       wxMessageDialog dialog( NULL , message , "", wxICON_HAND | wxOK) ;
-                   dialog.ShowModal();
-       }
-  #if TARGET_CARBON && PM_USE_SESSION_APIS
-           UMAPrClose(&m_macPrintSession) ;
-  #else
-           UMAPrClose() ;
-  #endif
-       }
-#endif
+    if ( m_err )
+        return ;
+
+    wxPrinterDCImpl *impl = (wxPrinterDCImpl*) dc->GetImpl();
+    wxMacCarbonPrintData *native = (wxMacCarbonPrintData*) impl->GetPrintData().GetNativeData() ;
+
+    m_err = PMSessionEndDocumentNoDialog(native->m_macPrintSession);

 }
 
 }
 

-bool wxPrinterDC::StartDoc( const wxString& WXUNUSED(message) ) 
+void wxMacCarbonPrinterDC::StartPage( wxPrinterDC* dc )

 {
 {

-       return m_ok ;
+    if ( m_err )
+        return ;
+
+    wxPrinterDCImpl *impl = (wxPrinterDCImpl*) dc->GetImpl();
+    wxMacCarbonPrintData *native = (wxMacCarbonPrintData*) impl->GetPrintData().GetNativeData() ;
+
+    m_err = PMSessionBeginPageNoDialog(native->m_macPrintSession,
+                 native->m_macPageFormat,
+                 nil);
+
+    CGContextRef pageContext;
+
+    if ( m_err == noErr )
+    {
+        m_err = PMSessionGetCGGraphicsContext(native->m_macPrintSession,
+                                            &pageContext );
+    }
+
+    if ( m_err != noErr )
+    {
+        PMSessionEndPageNoDialog(native->m_macPrintSession);
+        PMSessionEndDocumentNoDialog(native->m_macPrintSession);
+    }
+    else
+    {
+        PMRect rPage;
+
+        m_err = PMGetAdjustedPageRect(native->m_macPageFormat, &rPage);
+        if ( !m_err )
+        {
+            PMRect paperRect ;
+            PMGetAdjustedPaperRect( native->m_macPageFormat , &paperRect ) ;
+            // make sure (0,0) is at the upper left of the printable area (wx conventions)
+            // Core Graphics initially has the lower left of the paper as 0,0
+            CGContextTranslateCTM( pageContext , -paperRect.left , paperRect.bottom ) ;
+            CGContextScaleCTM( pageContext , 1 , -1 ) ;
+        }
+        // since this is a non-critical error, we set the flag back
+        m_err = noErr ;
+    }
+    impl->SetGraphicsContext( wxGraphicsContext::CreateFromNative( pageContext ) );

 }
 
 }
 

-void wxPrinterDC::EndDoc(void) 
+void wxMacCarbonPrinterDC::EndPage( wxPrinterDC* dc )

 {
 {

+    if ( m_err )
+        return ;
+
+    wxPrinterDCImpl *impl = (wxPrinterDCImpl*) dc->GetImpl();
+    wxMacCarbonPrintData *native = (wxMacCarbonPrintData*) impl->GetPrintData().GetNativeData() ;
+
+    m_err = PMSessionEndPageNoDialog(native->m_macPrintSession);
+    if ( m_err != noErr )
+    {
+        PMSessionEndDocumentNoDialog(native->m_macPrintSession);
+    }
+    // the cg context we got when starting the page isn't valid anymore, so replace it
+    impl->SetGraphicsContext( wxGraphicsContext::Create() );

 }
 
 }
 

-void wxPrinterDC::StartPage(void) 
+void wxMacCarbonPrinterDC::GetSize( int *w , int *h) const

 {
 {

-       if ( !m_ok )
-               return ;
-
-       m_logicalFunction = wxCOPY;
-//  m_textAlignment = wxALIGN_TOP_LEFT;
-       m_backgroundMode = wxTRANSPARENT;
-  
-       m_textForegroundColour = *wxBLACK;
-       m_textBackgroundColour = *wxWHITE;
-       m_pen = *wxBLACK_PEN;
-       m_font = *wxNORMAL_FONT;
-       m_brush = *wxTRANSPARENT_BRUSH;
-       m_backgroundBrush = *wxWHITE_BRUSH;
-    
-       m_macFontInstalled = false ;
-       m_macBrushInstalled = false ;
-       m_macPenInstalled = false ;
-
-               
-       OSStatus err ;
-       wxString message ;
-
-#if !TARGET_CARBON
-       PrOpenPage( m_macPrintPort , NULL ) ;
-       m_macLocalOrigin.h =  (**m_printData.m_macPrintInfo).rPaper.left ;
-       m_macLocalOrigin.v =  (**m_printData.m_macPrintInfo).rPaper.top ;
-       
-       Rect clip = { -32000 , -32000 , 32000 , 32000 } ;
-       ::ClipRect( &clip ) ;
-       err = PrError() ;
-       if ( err != noErr )
-       {
-               message.Printf( "Print Error %d", err ) ;
-               wxMessageDialog dialog( NULL , message , "", wxICON_HAND | wxOK) ;
-               dialog.ShowModal();
-               ::PrClosePage( m_macPrintPort ) ;
-               ::PrCloseDoc( m_macPrintPort ) ;
-               ::UMAPrClose() ;
-               ::SetPort( macPrintFormerPort ) ;
-               m_ok = FALSE ;
-       }
-#else
-  #if PM_USE_SESSION_APIS
-       err = PMSessionBeginPage(m_macPrintSession,
-                                m_printData.m_macPageFormat,
-                                nil);
-  #else
-       err = PMBeginPage(m_macPrintPort, nil);
-  #endif
-       if ( err != noErr )
-       {
-               message.Printf( "Print Error %d", err ) ;
-               wxMessageDialog dialog( NULL , message , "", wxICON_HAND | wxOK) ;
-               dialog.ShowModal();
-  #if PM_USE_SESSION_APIS
-               PMSessionEndPage(m_macPrintSession);
-               PMSessionEndDocument(m_macPrintSession);
-               UMAPrClose(&m_macPrintSession) ;
-  #else
-               PMEndPage(m_macPrintPort);
-               PMEndDocument(m_macPrintPort);
-               UMAPrClose() ;
-  #endif
-               ::SetPort( macPrintFormerPort ) ;
-               m_ok = FALSE ;
-       }
-#endif
+    if ( w )
+        *w = m_maxX ;
+    if ( h )
+        *h = m_maxY ;

 }
 
 }
 

-void wxPrinterDC::EndPage(void) 
+wxSize wxMacCarbonPrinterDC::GetPPI() const 

 {
 {

-       if ( !m_ok )
-               return ;
-
-       OSStatus err ;
-       wxString message ;
-
-#if !TARGET_CARBON
-       PrClosePage(  (TPrPort*) m_macPort ) ;
-       err = PrError() ;
-       if ( err != noErr )
-       {
-               message.Printf( "Print Error %d", err ) ;
-               wxMessageDialog dialog( NULL , message , "", wxICON_HAND | wxOK) ;
-               dialog.ShowModal();
-               ::PrCloseDoc( m_macPrintPort  ) ;
-               ::UMAPrClose() ;
-               ::SetPort( macPrintFormerPort ) ;
-               m_ok = FALSE ;
-       }
-#else
-  #if PM_USE_SESSION_APIS
-       err = PMSessionEndPage(m_macPrintSession);
-  #else
-       err = PMEndPage(m_macPrintPort);
-  #endif
-       if ( err != noErr )
-       {
-               message.Printf( "Print Error %d", err ) ;
-               wxMessageDialog dialog( NULL , message , "", wxICON_HAND | wxOK) ;
-               dialog.ShowModal();
-  #if PM_USE_SESSION_APIS
-               PMSessionEndDocument(m_macPrintSession);
-               UMAPrClose(&m_macPrintSession) ;
-  #else
-               PMEndDocument(m_macPrintPort);
-               UMAPrClose() ;
-  #endif
-               ::SetPort( macPrintFormerPort ) ;
-               m_ok = FALSE ;
-       }
-#endif
+     return m_ppi ;
+};
+
+//
+//
+//
+
+wxPrinterDCImpl::wxPrinterDCImpl( wxPrinterDC *owner, const wxPrintData& printdata )
+   : wxGCDCImpl( owner )
+{
+    m_ok = false ;
+    m_printData = printdata ;
+    m_printData.ConvertToNative() ;
+    m_nativePrinterDC = wxNativePrinterDC::Create( &m_printData ) ;
+    if ( m_nativePrinterDC )
+    {
+        m_ok = m_nativePrinterDC->Ok() ;
+        if ( !m_ok )
+        {
+            wxString message ;
+            message.Printf( wxT("Print Error %u"), m_nativePrinterDC->GetStatus() ) ;
+            wxMessageDialog dialog( NULL , message , wxEmptyString, wxICON_HAND | wxOK) ;
+            dialog.ShowModal();
+        }
+        else
+        {
+            wxSize sz = GetPPI();
+            m_mm_to_pix_x = mm2inches * sz.x;
+            m_mm_to_pix_y = mm2inches * sz.y;        
+        }
+        // we need at least a measuring context because people start measuring before a page
+        // gets printed at all
+        SetGraphicsContext( wxGraphicsContext::Create() );
+    }
+}
+
+wxSize wxPrinterDCImpl::GetPPI() const
+{
+    return m_nativePrinterDC->GetPPI() ;
+}
+
+wxPrinterDCImpl::~wxPrinterDCImpl()
+{
+    delete m_nativePrinterDC ;
+}
+
+bool wxPrinterDCImpl::StartDoc( const wxString& message )
+{
+    wxASSERT_MSG( IsOk() , wxT("Called wxPrinterDC::StartDoc from an invalid object") ) ;
+
+    if ( !m_ok )
+        return false ;
+
+    if ( m_nativePrinterDC->StartDoc( (wxPrinterDC*) GetOwner(), message ) )
+    {
+        // in case we have to do additional things when successful
+    }
+    m_ok = m_nativePrinterDC->Ok() ;
+    if ( !m_ok )
+    {
+        wxString message ;
+        message.Printf( wxT("Print Error %u"), m_nativePrinterDC->GetStatus() ) ;
+        wxMessageDialog dialog( NULL , message , wxEmptyString, wxICON_HAND | wxOK) ;
+        dialog.ShowModal();
+    }

 
 

+    return m_ok ;

 }
 }

+
+void wxPrinterDCImpl::EndDoc(void)
+{
+    if ( !m_ok )
+        return ;
+
+    m_nativePrinterDC->EndDoc( (wxPrinterDC*) GetOwner() ) ;
+    m_ok = m_nativePrinterDC->Ok() ;
+
+    if ( !m_ok )
+    {
+        wxString message ;
+        message.Printf( wxT("Print Error %u"), m_nativePrinterDC->GetStatus() ) ;
+        wxMessageDialog dialog( NULL , message , wxEmptyString, wxICON_HAND | wxOK) ;
+        dialog.ShowModal();
+    }
+}
+
+wxRect wxPrinterDCImpl::GetPaperRect()
+{
+    wxCoord w, h;
+    GetOwner()->GetSize(&w, &h);
+    wxRect pageRect(0, 0, w, h);
+    wxMacCarbonPrintData *native = (wxMacCarbonPrintData*) m_printData.GetNativeData() ;
+    OSStatus err = noErr ;
+    PMRect rPaper;
+    err = PMGetAdjustedPaperRect(native->m_macPageFormat, &rPaper);
+    if ( err != noErr )
+        return pageRect;
+    return wxRect(wxCoord(rPaper.left), wxCoord(rPaper.top),
+        wxCoord(rPaper.right - rPaper.left), wxCoord(rPaper.bottom - rPaper.top));
+}
+
+void wxPrinterDCImpl::StartPage()
+{
+    if ( !m_ok )
+        return ;
+
+    m_logicalFunction = wxCOPY;
+    //  m_textAlignment = wxALIGN_TOP_LEFT;
+    m_backgroundMode = wxTRANSPARENT;
+
+    m_textForegroundColour = *wxBLACK;
+    m_textBackgroundColour = *wxWHITE;
+    m_pen = *wxBLACK_PEN;
+    m_font = *wxNORMAL_FONT;
+    m_brush = *wxTRANSPARENT_BRUSH;
+    m_backgroundBrush = *wxWHITE_BRUSH;
+
+    m_nativePrinterDC->StartPage( (wxPrinterDC*) GetOwner() ) ;
+    m_ok = m_nativePrinterDC->Ok() ;
+
+}
+
+void wxPrinterDCImpl::EndPage()
+{
+    if ( !m_ok )
+        return ;
+
+    m_nativePrinterDC->EndPage( (wxPrinterDC*) GetOwner() );
+    m_ok = m_nativePrinterDC->Ok() ;
+}
+
+void wxPrinterDCImpl::DoGetSize(int *width, int *height) const
+{
+    wxCHECK_RET( m_ok , _T("GetSize() doesn't work without a valid wxPrinterDC") );
+    m_nativePrinterDC->GetSize(width,  height ) ;
+}
+
+#endif