printmac.cpp

Wxpython Implemented on Windows CE, Source code

void wxMacCarbonPrintData::TransferFrom( wxPrintDialogData* data )
{
    PMSetPageRange( m_macPrintSettings , data->GetMinPage() , data->GetMaxPage() ) ;
    PMSetCopies( m_macPrintSettings , data->GetNoCopies() , false ) ;
    PMSetFirstPage( m_macPrintSettings , data->GetFromPage() , false ) ;

    if (data->GetAllPages() || data->GetFromPage() == 0)
        PMSetLastPage( m_macPrintSettings , (UInt32) kPMPrintAllPages, true ) ;
    else
        PMSetLastPage( m_macPrintSettings , (UInt32) data->GetToPage() , false ) ;
}

/*
* Printer
*/

wxMacPrinter::wxMacPrinter(wxPrintDialogData *data):
wxPrinterBase(data)
{
}

wxMacPrinter::~wxMacPrinter(void)
{
}

bool wxMacPrinter::Print(wxWindow *parent, wxPrintout *printout, bool prompt)
{
    sm_abortIt = false;
    sm_abortWindow = NULL;

    if (!printout)
        return false;

    printout->SetIsPreview(false);
    if (m_printDialogData.GetMinPage() < 1)
        m_printDialogData.SetMinPage(1);
    if (m_printDialogData.GetMaxPage() < 1)
        m_printDialogData.SetMaxPage(9999);

    // Create a suitable device context
    wxDC *dc = NULL;
    if (prompt)
    {
        wxPrintDialog dialog(parent, & m_printDialogData);
        if (dialog.ShowModal() == wxID_OK)
        {
            dc = dialog.GetPrintDC();
            m_printDialogData = dialog.GetPrintDialogData();
        }
    }
    else
    {
        dc = new wxPrinterDC( m_printDialogData.GetPrintData() ) ;
    }

    // May have pressed cancel.
    if (!dc || !dc->Ok())
    {
        if (dc)
            delete dc;
        return false;
    }

    // on the mac we have always pixels as addressing mode with 72 dpi
    printout->SetPPIScreen(72, 72);
    PMResolution res;
    wxMacCarbonPrintData* nativeData = (wxMacCarbonPrintData*)
          (m_printDialogData.GetPrintData().GetNativeData());
    PMGetResolution((PMPageFormat) (nativeData->m_macPageFormat), &res);
    printout->SetPPIPrinter(int(res.hRes), int(res.vRes));

    // Set printout parameters
    printout->SetDC(dc);

    int w, h;
    wxCoord ww, hh;
    dc->GetSize(&w, &h);
    printout->SetPageSizePixels((int)w, (int)h);
    dc->GetSizeMM(&ww, &hh);
    printout->SetPageSizeMM((int)ww, (int)hh);

    // Create an abort window
    wxBeginBusyCursor();

    printout->OnPreparePrinting();

    // Get some parameters from the printout, if defined
    int fromPage, toPage;
    int minPage, maxPage;
    printout->GetPageInfo(&minPage, &maxPage, &fromPage, &toPage);

    if (maxPage == 0)
    {
        wxEndBusyCursor();
        return false;
    }

    // Only set min and max, because from and to have been
    // set by the user
    m_printDialogData.SetMinPage(minPage);
    m_printDialogData.SetMaxPage(maxPage);

    wxWindow *win = CreateAbortWindow(parent, printout);
    wxSafeYield(win,true);

    if (!win)
    {
        wxEndBusyCursor();
        wxMessageBox(wxT("Sorry, could not create an abort dialog."), wxT("Print Error"), wxOK, parent);
        delete dc;

        return false;
    }

    sm_abortWindow = win;
    sm_abortWindow->Show(true);
    wxSafeYield(win,true);

    printout->OnBeginPrinting();

    bool keepGoing = true;

    int copyCount;
    for (copyCount = 1; copyCount <= m_printDialogData.GetNoCopies(); copyCount ++)
    {
        if (!printout->OnBeginDocument(m_printDialogData.GetFromPage(), m_printDialogData.GetToPage()))
        {
            wxEndBusyCursor();
            wxMessageBox(wxT("Could not start printing."), wxT("Print Error"), wxOK, parent);
            break;
        }
        if (sm_abortIt)
            break;

        int pn;
        for (pn = m_printDialogData.GetFromPage();
        keepGoing && (pn <= m_printDialogData.GetToPage()) && printout->HasPage(pn);
        pn++)
        {
            if (sm_abortIt)
            {
                keepGoing = false;
                break;
            }
            else
            {
#if TARGET_CARBON
                if ( UMAGetSystemVersion() >= 0x1000 )
#endif
                {
                    GrafPtr thePort ;
                    GetPort( &thePort ) ;
                    wxSafeYield(win,true);
                    SetPort( thePort ) ;
                }
                dc->StartPage();
                keepGoing = printout->OnPrintPage(pn);
                dc->EndPage();
            }
        }
        printout->OnEndDocument();
    }

    printout->OnEndPrinting();

    if (sm_abortWindow)
    {
        sm_abortWindow->Show(false);
        delete sm_abortWindow;
        sm_abortWindow = NULL;
    }

    wxEndBusyCursor();

    delete dc;

    return true;
}

wxDC* wxMacPrinter::PrintDialog(wxWindow *parent)
{
    wxDC* dc = (wxDC*) NULL;

    wxPrintDialog dialog(parent, & m_printDialogData);
    int ret = dialog.ShowModal();

    if (ret == wxID_OK)
    {
        dc = dialog.GetPrintDC();
        m_printDialogData = dialog.GetPrintDialogData();
    }

    return dc;
}

bool wxMacPrinter::Setup(wxWindow *parent)
{
#if 0
    wxPrintDialog dialog(parent, & m_printDialogData);
    dialog.GetPrintDialogData().SetSetupDialog(true);

    int ret = dialog.ShowModal();

    if (ret == wxID_OK)
        m_printDialogData = dialog.GetPrintDialogData();

    return (ret == wxID_OK);
#endif

    return wxID_CANCEL;
}

/*
* Print preview
*/

wxMacPrintPreview::wxMacPrintPreview(wxPrintout *printout,
                                     wxPrintout *printoutForPrinting,
                                     wxPrintDialogData *data)
                                     : wxPrintPreviewBase(printout, printoutForPrinting, data)
{
    DetermineScaling();
}

wxMacPrintPreview::wxMacPrintPreview(wxPrintout *printout, wxPrintout *printoutForPrinting, wxPrintData *data):
wxPrintPreviewBase(printout, printoutForPrinting, data)
{
    DetermineScaling();
}

wxMacPrintPreview::~wxMacPrintPreview(void)
{
}

bool wxMacPrintPreview::Print(bool interactive)
{
    if (!m_printPrintout)
        return false;

    wxMacPrinter printer(&m_printDialogData);
    return printer.Print(m_previewFrame, m_printPrintout, interactive);
}

void wxMacPrintPreview::DetermineScaling(void)
{
    int screenWidth , screenHeight ;
    wxDisplaySize( &screenWidth , &screenHeight ) ;

    wxSize ppiScreen( 72 , 72 ) ;
    wxSize ppiPrinter( 72 , 72 ) ;
    
    m_previewPrintout->SetPPIScreen( ppiScreen.x , ppiScreen.y ) ;
    
    int x , y ;
    wxCoord ww, hh;

    // Get a device context for the currently selected printer
    wxPrinterDC printerDC(m_printDialogData.GetPrintData());
    if (printerDC.Ok())
    {
        printerDC.GetSizeMM(&ww, &hh);
        printerDC.GetSize( &x , &y ) ;
        ppiPrinter = printerDC.GetPPI() ;
        m_isOk = true ;
    }
    else
    {
        // use some defaults
        x = 8 * 72 ;
        y = 11 * 72 ;
        ww = (int) (x * 25.4 / ppiPrinter.x) ;
        hh = (int) (y * 25.4 / ppiPrinter.y) ;
        m_isOk = false ;
    }
    m_previewPrintout->SetPageSizeMM((int)ww, (int)hh);
    m_previewPrintout->SetPageSizePixels( x , y) ;
    m_pageWidth = x ;
    m_pageHeight = y ;
    m_previewPrintout->SetPPIPrinter( ppiPrinter.x , ppiPrinter.y ) ;

    m_previewScale = (float)((float)ppiScreen.x/(float)ppiPrinter.y);
}

#endif