src/msw/dcprint.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        src/msw/dcprint.cpp
// 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
/////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

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

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

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#ifndef WX_PRECOMP
    #include "wx/string.h"
    #include "wx/log.h"
    #include "wx/window.h"
    #include "wx/dcmemory.h"
#endif

#if wxUSE_PRINTING_ARCHITECTURE

#include "wx/msw/private.h"
#include "wx/dcprint.h"
#include "math.h"

#if wxUSE_COMMON_DIALOGS || defined(__WXWINE__)
    #include <commdlg.h>
#endif

#ifndef __WIN32__
    #include <print.h>
#endif

// mingw32 defines GDI_ERROR incorrectly
#ifdef __GNUWIN32__
    #undef GDI_ERROR
    #define GDI_ERROR ((int)-1)
#endif

// ----------------------------------------------------------------------------
// wxWin macros
// ----------------------------------------------------------------------------

IMPLEMENT_CLASS(wxPrinterDC, wxDC)

// ============================================================================
// implementation
// ============================================================================

// ----------------------------------------------------------------------------
// wxPrinterDC construction
// ----------------------------------------------------------------------------

// This form is deprecated
wxPrinterDC::wxPrinterDC(const wxString& driver_name,
                         const wxString& device_name,
                         const wxString& file,
                         bool interactive,
                         int orientation)
{
    m_isInteractive = interactive;

    if ( !file.empty() )
        m_printData.SetFilename(file);

#if wxUSE_COMMON_DIALOGS
    if ( interactive )
    {
        PRINTDLG pd;

        pd.lStructSize = sizeof( PRINTDLG );
        pd.hwndOwner = (HWND) NULL;
        pd.hDevMode = (HANDLE)NULL;
        pd.hDevNames = (HANDLE)NULL;
        pd.Flags = PD_RETURNDC | PD_NOSELECTION | PD_NOPAGENUMS;
        pd.nFromPage = 0;
        pd.nToPage = 0;
        pd.nMinPage = 0;
        pd.nMaxPage = 0;
        pd.nCopies = 1;
        pd.hInstance = (HINSTANCE)NULL;

        m_ok = PrintDlg( &pd ) != 0;
        if ( m_ok )
        {
            m_hDC = (WXHDC) pd.hDC;
        }
    }
    else
#endif // wxUSE_COMMON_DIALOGS
    {
        if ( !driver_name.empty() && !device_name.empty() && !file.empty() )
        {
            m_hDC = (WXHDC) CreateDC(driver_name, device_name, file, NULL);
        }
        else // we don't have all parameters, ask the user
        {
            wxPrintData printData;
            printData.SetOrientation(orientation);
            m_hDC = wxGetPrinterDC(printData);
        }

        m_ok = m_hDC ? TRUE: FALSE;

        // as we created it, we must delete it as well
        m_bOwnsDC = TRUE;
    }

    Init();
}

wxPrinterDC::wxPrinterDC(const wxPrintData& printData)
{
    m_printData = printData;

    m_isInteractive = FALSE;

    m_hDC = wxGetPrinterDC(printData);
    m_ok = m_hDC != 0;
    m_bOwnsDC = TRUE;

    Init();
}


wxPrinterDC::wxPrinterDC(WXHDC dc)
{
    m_isInteractive = FALSE;

    m_hDC = dc;
    m_bOwnsDC = TRUE;
    m_ok = TRUE;
}

void wxPrinterDC::Init()
{
    if ( m_hDC )
    {
        //     int width = GetDeviceCaps(m_hDC, VERTRES);
        //     int height = GetDeviceCaps(m_hDC, HORZRES);
        SetMapMode(wxMM_TEXT);

        SetBrush(*wxBLACK_BRUSH);
        SetPen(*wxBLACK_PEN);
    }
}

// ----------------------------------------------------------------------------
// wxPrinterDC {Start/End}{Page/Doc} methods
// ----------------------------------------------------------------------------

bool wxPrinterDC::StartDoc(const wxString& message)
{
    DOCINFO docinfo;
    docinfo.cbSize = sizeof(DOCINFO);
    docinfo.lpszDocName = (const wxChar*)message;

    wxString filename(m_printData.GetFilename());

    if (filename.IsEmpty())
        docinfo.lpszOutput = NULL;
    else
        docinfo.lpszOutput = (const wxChar *) filename;

#if defined(__WIN95__)
    docinfo.lpszDatatype = NULL;
    docinfo.fwType = 0;
#endif

    if (!m_hDC)
        return FALSE;

    int ret = ::StartDoc(GetHdc(), &docinfo);

#ifndef __WIN16__
    if (ret <= 0)
    {
        DWORD lastError = GetLastError();
        wxLogDebug(wxT("wxDC::StartDoc failed with error: %ld\n"), lastError);
    }
#endif

    return (ret > 0);
}

void wxPrinterDC::EndDoc()
{
    if (m_hDC) ::EndDoc((HDC) m_hDC);
}

void wxPrinterDC::StartPage()
{
    if (m_hDC)
        ::StartPage((HDC) m_hDC);
}

void wxPrinterDC::EndPage()
{
    if (m_hDC)
        ::EndPage((HDC) m_hDC);
}

// Returns default device and port names
static bool wxGetDefaultDeviceName(wxString& deviceName, wxString& portName)
{
    deviceName.clear();

    LPDEVNAMES  lpDevNames;
    LPTSTR      lpszDriverName;
    LPTSTR      lpszDeviceName;
    LPTSTR      lpszPortName;

    PRINTDLG    pd;

    // Cygwin has trouble believing PRINTDLG is 66 bytes - thinks it is 68
#ifdef __GNUWIN32__
    memset(&pd, 0, 66);
    pd.lStructSize    = 66; // sizeof(PRINTDLG);
#else
    memset(&pd, 0, sizeof(PRINTDLG));
    pd.lStructSize    = sizeof(PRINTDLG);
#endif

    pd.hwndOwner      = (HWND)NULL;
    pd.hDevMode       = NULL; // Will be created by PrintDlg
    pd.hDevNames      = NULL; // Ditto
    pd.Flags          = PD_RETURNDEFAULT;
    pd.nCopies        = 1;

    if (!PrintDlg((LPPRINTDLG)&pd))
    {
        if ( pd.hDevMode )
            GlobalFree(pd.hDevMode);
        if (pd.hDevNames)
            GlobalFree(pd.hDevNames);

        return FALSE;
    }

    if (pd.hDevNames)
    {
        lpDevNames = (LPDEVNAMES)GlobalLock(pd.hDevNames);
        lpszDriverName = (LPTSTR)lpDevNames + lpDevNames->wDriverOffset;
        lpszDeviceName = (LPTSTR)lpDevNames + lpDevNames->wDeviceOffset;
        lpszPortName   = (LPTSTR)lpDevNames + lpDevNames->wOutputOffset;

        deviceName = lpszDeviceName;
        portName = lpszPortName;

        GlobalUnlock(pd.hDevNames);
        GlobalFree(pd.hDevNames);
        pd.hDevNames=NULL;
    }

    if (pd.hDevMode)
    {
        GlobalFree(pd.hDevMode);
        pd.hDevMode=NULL;
    }
    return ( deviceName != wxT("") );
}

#if 0
// This uses defaults, except for orientation, so we should eliminate this function
// and use the 2nd form (passing wxPrintData) instead.
WXHDC wxGetPrinterDC(int orientation)
{
    HDC         hDC;
    LPDEVMODE   lpDevMode = NULL;
    LPDEVNAMES  lpDevNames;
    LPSTR       lpszDriverName;
    LPSTR       lpszDeviceName;
    LPSTR       lpszPortName;

    PRINTDLG    pd;
    // __GNUWIN32__ has trouble believing PRINTDLG is 66 bytes - thinks it is 68
#ifdef __GNUWIN32__
    pd.lStructSize    = 66; // sizeof(PRINTDLG);
#else
    pd.lStructSize    = sizeof(PRINTDLG);
#endif
    pd.hwndOwner      = (HWND)NULL;
    pd.hDevMode       = NULL; // Will be created by PrintDlg
    pd.hDevNames      = NULL; // Ditto
    pd.Flags          = PD_RETURNDEFAULT;
    pd.nCopies        = 1;

    if (!PrintDlg((LPPRINTDLG)&pd))
    {
        if ( pd.hDevMode )
            GlobalFree(pd.hDevMode);
        if (pd.hDevNames)
            GlobalFree(pd.hDevNames);

        return(0);
    }

    if (!pd.hDevNames)
    {
        if ( pd.hDevMode )
            GlobalFree(pd.hDevMode);
    }

    lpDevNames = (LPDEVNAMES)GlobalLock(pd.hDevNames);
    lpszDriverName = (LPSTR)lpDevNames + lpDevNames->wDriverOffset;
    lpszDeviceName = (LPSTR)lpDevNames + lpDevNames->wDeviceOffset;
    lpszPortName   = (LPSTR)lpDevNames + lpDevNames->wOutputOffset;
    GlobalUnlock(pd.hDevNames);

    if ( pd.hDevMode )
    {
        lpDevMode = (DEVMODE*) GlobalLock(pd.hDevMode);
        lpDevMode->dmOrientation = orientation;
        lpDevMode->dmFields |= DM_ORIENTATION;
    }

#ifdef __WIN32__
    hDC = CreateDC(lpszDriverName, lpszDeviceName, lpszPortName, (DEVMODE *)lpDevMode);
#else
    hDC = CreateDC(lpszDriverName, lpszDeviceName, lpszPortName, (LPSTR)lpDevMode);
#endif

    if (pd.hDevMode && lpDevMode)
        GlobalUnlock(pd.hDevMode);

    if (pd.hDevNames)
    {
        GlobalFree(pd.hDevNames);
        pd.hDevNames=NULL;
    }
    if (pd.hDevMode)
    {
        GlobalFree(pd.hDevMode);
        pd.hDevMode=NULL;
    }
    return (WXHDC) hDC;
}
#endif // 0

// Gets an HDC for the specified printer configuration
WXHDC WXDLLEXPORT wxGetPrinterDC(const wxPrintData& printDataConst)
{
    wxPrintData printData = printDataConst;
    printData.ConvertToNative();

    wxChar* driverName = (wxChar*) NULL;

    wxString devNameStr = printData.GetPrinterName();
    wxChar* portName = (wxChar*) NULL; // Obsolete in WIN32

    const wxChar* deviceName;
    if ( !devNameStr )
        deviceName = (wxChar*) NULL;
    else
        deviceName = devNameStr.c_str();

    LPDEVMODE lpDevMode = (LPDEVMODE) NULL;

    HGLOBAL hDevMode = (HGLOBAL)(DWORD) printData.GetNativeData();

    if ( hDevMode )
        lpDevMode = (DEVMODE*) GlobalLock(hDevMode);

    if ( !devNameStr )
    {
        // Retrieve the default device name
        wxString portName;
#ifdef  __WXDEBUG__
        bool ret =
#else   // !Debug
        (void)
#endif // Debug/Release
        wxGetDefaultDeviceName(devNameStr, portName);

        wxASSERT_MSG( ret, wxT("Could not get default device name.") );

        deviceName = devNameStr.c_str();
    }

#ifdef __WIN32__
    HDC hDC = CreateDC(driverName, deviceName, portName, (DEVMODE *) lpDevMode);
#else
    HDC hDC = CreateDC(driverName, deviceName, portName, (LPSTR) lpDevMode);
#endif

    if (hDevMode && lpDevMode)
        GlobalUnlock(hDevMode);

    return (WXHDC) hDC;
}

// ----------------------------------------------------------------------------
// wxPrinterDC bit blitting/bitmap drawing
// ----------------------------------------------------------------------------

// Win16 doesn't define GDI_ERROR.
#ifndef GDI_ERROR
#define GDI_ERROR -1
#endif

// Just in case we want to go back to using 8 bits for
// any reason: set this to 0 for 8 bits.
#define wxUSE_DRAWBITMAP_24BITS 1

void wxPrinterDC::DoDrawBitmap(const wxBitmap &bmp,
                               wxCoord x, wxCoord y,
                               bool useMask)
{
    wxCHECK_RET( bmp.Ok(), _T("invalid bitmap in wxPrinterDC::DrawBitmap") );

    int width = bmp.GetWidth(),
        height = bmp.GetHeight();

    if ( ::GetDeviceCaps(GetHdc(), RASTERCAPS) & RC_STRETCHDIB )
    {
        BITMAPINFO *info = (BITMAPINFO *) malloc( sizeof( BITMAPINFOHEADER ) + 256 * sizeof(RGBQUAD ) );
        memset( info, 0, sizeof( BITMAPINFOHEADER ) );

#if wxUSE_DRAWBITMAP_24BITS
        int iBitsSize = ((width + 3 ) & ~3 ) * height * 3;
#else
        int iBitsSize = ((width + 3 ) & ~3 ) * height ;
#endif

        void* bits = malloc( iBitsSize );

        info->bmiHeader.biSize = sizeof( BITMAPINFOHEADER );
        info->bmiHeader.biWidth = width;
        info->bmiHeader.biHeight = height;
        info->bmiHeader.biPlanes = 1;
#if wxUSE_DRAWBITMAP_24BITS
        info->bmiHeader.biBitCount = 24;
#else
        info->bmiHeader.biBitCount = 8;
#endif
        info->bmiHeader.biCompression = BI_RGB;

        ScreenHDC display;
        if ( GetDIBits(display, GetHbitmapOf(bmp), 0,
                       bmp.GetHeight(), bits, info,
                       DIB_RGB_COLORS) )
        {
            if ( ::StretchDIBits(GetHdc(), x, y,
                                 width, height,
                                 0 , 0, width, height,
                                 bits, info,
                                 DIB_RGB_COLORS, SRCCOPY) == GDI_ERROR )
            {
                wxLogLastError(wxT("StretchDIBits"));
            }
        }

        free(bits);
        free(info);
    }
    else // no support for StretchDIBits()
    {
        wxMemoryDC memDC;
        memDC.SelectObject(bmp);

        Blit(x, y, width, height, &memDC, 0, 0, wxCOPY, useMask);

        memDC.SelectObject(wxNullBitmap);
    }
}

bool wxPrinterDC::DoBlit(wxCoord xdest, wxCoord ydest,
                         wxCoord width, wxCoord height,
                         wxDC *source,
                         wxCoord xsrc, wxCoord ysrc,
                         int WXUNUSED(rop), bool useMask,
                         wxCoord WXUNUSED(xsrcMask), wxCoord WXUNUSED(ysrcMask))
{
    bool success = TRUE;

    if ( useMask )
    {
        // If we are printing source colours are screen colours
        // not printer colours and so we need copy the bitmap
        // pixel by pixel.
        RECT rect;
        HDC dc_src = GetHdcOf(*source);
        HDC dc_mask = ::CreateCompatibleDC(dc_src);

        ::SelectObject(dc_mask, (HBITMAP) source->GetSelectedBitmap().GetMask()->GetMaskBitmap());
        for (int x = 0; x < width; x++)
        {
            for (int y = 0; y < height; y++)
            {
                COLORREF cref = ::GetPixel(dc_mask, x, y);
                if (cref)
                {
                    HBRUSH brush = ::CreateSolidBrush(::GetPixel(dc_src, x, y));
                    rect.left = xdest + x;
                    rect.right = rect.left + 1;
                    rect.top = ydest + y;
                    rect.bottom = rect.top + 1;
                    ::FillRect(GetHdc(), &rect, brush);
                    ::DeleteObject(brush);
                }
            }
        }
        ::SelectObject(dc_mask, 0);
        ::DeleteDC(dc_mask);
    }
    else // no mask
    {
        if ( ::GetDeviceCaps(GetHdc(), RASTERCAPS) & RC_STRETCHDIB )
        {
            wxBitmap& bmp = source->GetSelectedBitmap();
            int width = bmp.GetWidth(),
                height = bmp.GetHeight();

            BITMAPINFO *info = (BITMAPINFO *) malloc( sizeof( BITMAPINFOHEADER ) + 256 * sizeof(RGBQUAD ) );
            int iBitsSize = ((width + 3 ) & ~3 ) * height;

            void* bits = malloc( iBitsSize );

            memset( info , 0 , sizeof( BITMAPINFOHEADER ) );

            info->bmiHeader.biSize = sizeof( BITMAPINFOHEADER );
            info->bmiHeader.biWidth = width;
            info->bmiHeader.biHeight = height;
            info->bmiHeader.biPlanes = 1;
            info->bmiHeader.biBitCount = 8;
            info->bmiHeader.biCompression = BI_RGB;

            ScreenHDC display;
            if ( !::GetDIBits(display, GetHbitmapOf(bmp), 0,
                              height, bits, info, DIB_RGB_COLORS) )
            {
                wxLogLastError(wxT("GetDIBits"));

                success = FALSE;
            }

            if ( success )
            {
                success = ::StretchDIBits(GetHdc(), xdest, ydest,
                                          width, height,
                                          xsrc, ysrc,
                                          width, height,
                                          bits, info ,
                                          DIB_RGB_COLORS,
                                          SRCCOPY) != GDI_ERROR;
                if ( !success )
                {
                    wxLogLastError(wxT("StretchDIBits"));
                }
            }

            free(bits);
            free(info);
        }
        else // no support for StretchDIBits
        {
            // as we are printing, source colours are screen colours not printer
            // colours and so we need copy the bitmap pixel by pixel.
            HDC dc_src = GetHdcOf(*source);
            RECT rect;
            for (int y = 0; y < height; y++)
            {
                // This is Stefan Csomor's optimisation, where identical adjacent
                // pixels are drawn together.
                for (int x = 0; x < width; x++)
                {
                    COLORREF col = ::GetPixel(dc_src, x, y);
                    HBRUSH brush = ::CreateSolidBrush( col );

                    rect.left = xdest + x;
                    rect.top = ydest + y;
                    while( (x + 1 < width) && (::GetPixel(dc_src, x + 1, y) == col ) )
                    {
                        ++x;
                    }
                    rect.right = xdest + x + 1;
                    rect.bottom = rect.top + 1;
                    ::FillRect((HDC) m_hDC, &rect, brush);
                    ::DeleteObject(brush);
                }
            }
        }
    }

    return success;
}

#endif
    // wxUSE_PRINTING_ARCHITECTURE
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: src/msw/dcprint.cpp
	3	// Purpose: wxPrinterDC class
	4	// Author: Julian Smart
	5	// Modified by:
	6	// Created: 01/02/97
	7	// RCS-ID: $Id$
	8	// Copyright: (c) Julian Smart and Markus Holzem
	9	// Licence: wxWindows licence
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	// ============================================================================
	13	// declarations
	14	// ============================================================================
	15
	16	// ----------------------------------------------------------------------------
	17	// headers
	18	// ----------------------------------------------------------------------------
	19
	20	#ifdef __GNUG__
	21	#pragma implementation "dcprint.h"
	22	#endif
	23
	24	// For compilers that support precompilation, includes "wx.h".
	25	#include "wx/wxprec.h"
	26
	27	#ifdef __BORLANDC__
	28	#pragma hdrstop
	29	#endif
	30
	31	#ifndef WX_PRECOMP
	32	#include "wx/string.h"
	33	#include "wx/log.h"
	34	#include "wx/window.h"
	35	#include "wx/dcmemory.h"
	36	#endif
	37
	38	#if wxUSE_PRINTING_ARCHITECTURE
	39
	40	#include "wx/msw/private.h"
	41	#include "wx/dcprint.h"
	42	#include "math.h"
	43
	44	#if wxUSE_COMMON_DIALOGS \|\| defined(__WXWINE__)
	45	#include <commdlg.h>
	46	#endif
	47
	48	#ifndef __WIN32__
	49	#include <print.h>
	50	#endif
	51
	52	// mingw32 defines GDI_ERROR incorrectly
	53	#ifdef __GNUWIN32__
	54	#undef GDI_ERROR
	55	#define GDI_ERROR ((int)-1)
	56	#endif
	57
	58	// ----------------------------------------------------------------------------
	59	// wxWin macros
	60	// ----------------------------------------------------------------------------
	61
	62	IMPLEMENT_CLASS(wxPrinterDC, wxDC)
	63
	64	// ============================================================================
	65	// implementation
	66	// ============================================================================
	67
	68	// ----------------------------------------------------------------------------
	69	// wxPrinterDC construction
	70	// ----------------------------------------------------------------------------
	71
	72	// This form is deprecated
	73	wxPrinterDC::wxPrinterDC(const wxString& driver_name,
	74	const wxString& device_name,
	75	const wxString& file,
	76	bool interactive,
	77	int orientation)
	78	{
	79	m_isInteractive = interactive;
	80
	81	if ( !file.empty() )
	82	m_printData.SetFilename(file);
	83
	84	#if wxUSE_COMMON_DIALOGS
	85	if ( interactive )
	86	{
	87	PRINTDLG pd;
	88
	89	pd.lStructSize = sizeof( PRINTDLG );
	90	pd.hwndOwner = (HWND) NULL;
	91	pd.hDevMode = (HANDLE)NULL;
	92	pd.hDevNames = (HANDLE)NULL;
	93	pd.Flags = PD_RETURNDC \| PD_NOSELECTION \| PD_NOPAGENUMS;
	94	pd.nFromPage = 0;
	95	pd.nToPage = 0;
	96	pd.nMinPage = 0;
	97	pd.nMaxPage = 0;
	98	pd.nCopies = 1;
	99	pd.hInstance = (HINSTANCE)NULL;
	100
	101	m_ok = PrintDlg( &pd ) != 0;
	102	if ( m_ok )
	103	{
	104	m_hDC = (WXHDC) pd.hDC;
	105	}
	106	}
	107	else
	108	#endif // wxUSE_COMMON_DIALOGS
	109	{
	110	if ( !driver_name.empty() && !device_name.empty() && !file.empty() )
	111	{
	112	m_hDC = (WXHDC) CreateDC(driver_name, device_name, file, NULL);
	113	}
	114	else // we don't have all parameters, ask the user
	115	{
	116	wxPrintData printData;
	117	printData.SetOrientation(orientation);
	118	m_hDC = wxGetPrinterDC(printData);
	119	}
	120
	121	m_ok = m_hDC ? TRUE: FALSE;
	122
	123	// as we created it, we must delete it as well
	124	m_bOwnsDC = TRUE;
	125	}
	126
	127	Init();
	128	}
	129
	130	wxPrinterDC::wxPrinterDC(const wxPrintData& printData)
	131	{
	132	m_printData = printData;
	133
	134	m_isInteractive = FALSE;
	135
	136	m_hDC = wxGetPrinterDC(printData);
	137	m_ok = m_hDC != 0;
	138	m_bOwnsDC = TRUE;
	139
	140	Init();
	141	}
	142
	143
	144	wxPrinterDC::wxPrinterDC(WXHDC dc)
	145	{
	146	m_isInteractive = FALSE;
	147
	148	m_hDC = dc;
	149	m_bOwnsDC = TRUE;
	150	m_ok = TRUE;
	151	}
	152
	153	void wxPrinterDC::Init()
	154	{
	155	if ( m_hDC )
	156	{
	157	// int width = GetDeviceCaps(m_hDC, VERTRES);
	158	// int height = GetDeviceCaps(m_hDC, HORZRES);
	159	SetMapMode(wxMM_TEXT);
	160
	161	SetBrush(*wxBLACK_BRUSH);
	162	SetPen(*wxBLACK_PEN);
	163	}
	164	}
	165
	166	// ----------------------------------------------------------------------------
	167	// wxPrinterDC {Start/End}{Page/Doc} methods
	168	// ----------------------------------------------------------------------------
	169
	170	bool wxPrinterDC::StartDoc(const wxString& message)
	171	{
	172	DOCINFO docinfo;
	173	docinfo.cbSize = sizeof(DOCINFO);
	174	docinfo.lpszDocName = (const wxChar*)message;
	175
	176	wxString filename(m_printData.GetFilename());
	177
	178	if (filename.IsEmpty())
	179	docinfo.lpszOutput = NULL;
	180	else
	181	docinfo.lpszOutput = (const wxChar *) filename;
	182
	183	#if defined(__WIN95__)
	184	docinfo.lpszDatatype = NULL;
	185	docinfo.fwType = 0;
	186	#endif
	187
	188	if (!m_hDC)
	189	return FALSE;
	190
	191	int ret = ::StartDoc(GetHdc(), &docinfo);
	192
	193	#ifndef __WIN16__
	194	if (ret <= 0)
	195	{
	196	DWORD lastError = GetLastError();
	197	wxLogDebug(wxT("wxDC::StartDoc failed with error: %ld\n"), lastError);
	198	}
	199	#endif
	200
	201	return (ret > 0);
	202	}
	203
	204	void wxPrinterDC::EndDoc()
	205	{
	206	if (m_hDC) ::EndDoc((HDC) m_hDC);
	207	}
	208
	209	void wxPrinterDC::StartPage()
	210	{
	211	if (m_hDC)
	212	::StartPage((HDC) m_hDC);
	213	}
	214
	215	void wxPrinterDC::EndPage()
	216	{
	217	if (m_hDC)
	218	::EndPage((HDC) m_hDC);
	219	}
	220
	221	// Returns default device and port names
	222	static bool wxGetDefaultDeviceName(wxString& deviceName, wxString& portName)
	223	{
	224	deviceName.clear();
	225
	226	LPDEVNAMES lpDevNames;
	227	LPTSTR lpszDriverName;
	228	LPTSTR lpszDeviceName;
	229	LPTSTR lpszPortName;
	230
	231	PRINTDLG pd;
	232
	233	// Cygwin has trouble believing PRINTDLG is 66 bytes - thinks it is 68
	234	#ifdef __GNUWIN32__
	235	memset(&pd, 0, 66);
	236	pd.lStructSize = 66; // sizeof(PRINTDLG);
	237	#else
	238	memset(&pd, 0, sizeof(PRINTDLG));
	239	pd.lStructSize = sizeof(PRINTDLG);
	240	#endif
	241
	242	pd.hwndOwner = (HWND)NULL;
	243	pd.hDevMode = NULL; // Will be created by PrintDlg
	244	pd.hDevNames = NULL; // Ditto
	245	pd.Flags = PD_RETURNDEFAULT;
	246	pd.nCopies = 1;
	247
	248	if (!PrintDlg((LPPRINTDLG)&pd))
	249	{
	250	if ( pd.hDevMode )
	251	GlobalFree(pd.hDevMode);
	252	if (pd.hDevNames)
	253	GlobalFree(pd.hDevNames);
	254
	255	return FALSE;
	256	}
	257
	258	if (pd.hDevNames)
	259	{
	260	lpDevNames = (LPDEVNAMES)GlobalLock(pd.hDevNames);
	261	lpszDriverName = (LPTSTR)lpDevNames + lpDevNames->wDriverOffset;
	262	lpszDeviceName = (LPTSTR)lpDevNames + lpDevNames->wDeviceOffset;
	263	lpszPortName = (LPTSTR)lpDevNames + lpDevNames->wOutputOffset;
	264
	265	deviceName = lpszDeviceName;
	266	portName = lpszPortName;
	267
	268	GlobalUnlock(pd.hDevNames);
	269	GlobalFree(pd.hDevNames);
	270	pd.hDevNames=NULL;
	271	}
	272
	273	if (pd.hDevMode)
	274	{
	275	GlobalFree(pd.hDevMode);
	276	pd.hDevMode=NULL;
	277	}
	278	return ( deviceName != wxT("") );
	279	}
	280
	281	#if 0
	282	// This uses defaults, except for orientation, so we should eliminate this function
	283	// and use the 2nd form (passing wxPrintData) instead.
	284	WXHDC wxGetPrinterDC(int orientation)
	285	{
	286	HDC hDC;
	287	LPDEVMODE lpDevMode = NULL;
	288	LPDEVNAMES lpDevNames;
	289	LPSTR lpszDriverName;
	290	LPSTR lpszDeviceName;
	291	LPSTR lpszPortName;
	292
	293	PRINTDLG pd;
	294	// __GNUWIN32__ has trouble believing PRINTDLG is 66 bytes - thinks it is 68
	295	#ifdef __GNUWIN32__
	296	pd.lStructSize = 66; // sizeof(PRINTDLG);
	297	#else
	298	pd.lStructSize = sizeof(PRINTDLG);
	299	#endif
	300	pd.hwndOwner = (HWND)NULL;
	301	pd.hDevMode = NULL; // Will be created by PrintDlg
	302	pd.hDevNames = NULL; // Ditto
	303	pd.Flags = PD_RETURNDEFAULT;
	304	pd.nCopies = 1;
	305
	306	if (!PrintDlg((LPPRINTDLG)&pd))
	307	{
	308	if ( pd.hDevMode )
	309	GlobalFree(pd.hDevMode);
	310	if (pd.hDevNames)
	311	GlobalFree(pd.hDevNames);
	312
	313	return(0);
	314	}
	315
	316	if (!pd.hDevNames)
	317	{
	318	if ( pd.hDevMode )
	319	GlobalFree(pd.hDevMode);
	320	}
	321
	322	lpDevNames = (LPDEVNAMES)GlobalLock(pd.hDevNames);
	323	lpszDriverName = (LPSTR)lpDevNames + lpDevNames->wDriverOffset;
	324	lpszDeviceName = (LPSTR)lpDevNames + lpDevNames->wDeviceOffset;
	325	lpszPortName = (LPSTR)lpDevNames + lpDevNames->wOutputOffset;
	326	GlobalUnlock(pd.hDevNames);
	327
	328	if ( pd.hDevMode )
	329	{
	330	lpDevMode = (DEVMODE*) GlobalLock(pd.hDevMode);
	331	lpDevMode->dmOrientation = orientation;
	332	lpDevMode->dmFields \|= DM_ORIENTATION;
	333	}
	334
	335	#ifdef __WIN32__
	336	hDC = CreateDC(lpszDriverName, lpszDeviceName, lpszPortName, (DEVMODE *)lpDevMode);
	337	#else
	338	hDC = CreateDC(lpszDriverName, lpszDeviceName, lpszPortName, (LPSTR)lpDevMode);
	339	#endif
	340
	341	if (pd.hDevMode && lpDevMode)
	342	GlobalUnlock(pd.hDevMode);
	343
	344	if (pd.hDevNames)
	345	{
	346	GlobalFree(pd.hDevNames);
	347	pd.hDevNames=NULL;
	348	}
	349	if (pd.hDevMode)
	350	{
	351	GlobalFree(pd.hDevMode);
	352	pd.hDevMode=NULL;
	353	}
	354	return (WXHDC) hDC;
	355	}
	356	#endif // 0
	357
	358	// Gets an HDC for the specified printer configuration
	359	WXHDC WXDLLEXPORT wxGetPrinterDC(const wxPrintData& printDataConst)
	360	{
	361	wxPrintData printData = printDataConst;
	362	printData.ConvertToNative();
	363
	364	wxChar* driverName = (wxChar*) NULL;
	365
	366	wxString devNameStr = printData.GetPrinterName();
	367	wxChar* portName = (wxChar*) NULL; // Obsolete in WIN32
	368
	369	const wxChar* deviceName;
	370	if ( !devNameStr )
	371	deviceName = (wxChar*) NULL;
	372	else
	373	deviceName = devNameStr.c_str();
	374
	375	LPDEVMODE lpDevMode = (LPDEVMODE) NULL;
	376
	377	HGLOBAL hDevMode = (HGLOBAL)(DWORD) printData.GetNativeData();
	378
	379	if ( hDevMode )
	380	lpDevMode = (DEVMODE*) GlobalLock(hDevMode);
	381
	382	if ( !devNameStr )
	383	{
	384	// Retrieve the default device name
	385	wxString portName;
	386	#ifdef __WXDEBUG__
	387	bool ret =
	388	#else // !Debug
	389	(void)
	390	#endif // Debug/Release
	391	wxGetDefaultDeviceName(devNameStr, portName);
	392
	393	wxASSERT_MSG( ret, wxT("Could not get default device name.") );
	394
	395	deviceName = devNameStr.c_str();
	396	}
	397
	398	#ifdef __WIN32__
	399	HDC hDC = CreateDC(driverName, deviceName, portName, (DEVMODE *) lpDevMode);
	400	#else
	401	HDC hDC = CreateDC(driverName, deviceName, portName, (LPSTR) lpDevMode);
	402	#endif
	403
	404	if (hDevMode && lpDevMode)
	405	GlobalUnlock(hDevMode);
	406
	407	return (WXHDC) hDC;
	408	}
	409
	410	// ----------------------------------------------------------------------------
	411	// wxPrinterDC bit blitting/bitmap drawing
	412	// ----------------------------------------------------------------------------
	413
	414	// Win16 doesn't define GDI_ERROR.
	415	#ifndef GDI_ERROR
	416	#define GDI_ERROR -1
	417	#endif
	418
	419	// Just in case we want to go back to using 8 bits for
	420	// any reason: set this to 0 for 8 bits.
	421	#define wxUSE_DRAWBITMAP_24BITS 1
	422
	423	void wxPrinterDC::DoDrawBitmap(const wxBitmap &bmp,
	424	wxCoord x, wxCoord y,
	425	bool useMask)
	426	{
	427	wxCHECK_RET( bmp.Ok(), _T("invalid bitmap in wxPrinterDC::DrawBitmap") );
	428
	429	int width = bmp.GetWidth(),
	430	height = bmp.GetHeight();
	431
	432	if ( ::GetDeviceCaps(GetHdc(), RASTERCAPS) & RC_STRETCHDIB )
	433	{
	434	BITMAPINFO info = (BITMAPINFO ) malloc( sizeof( BITMAPINFOHEADER ) + 256 * sizeof(RGBQUAD ) );
	435	memset( info, 0, sizeof( BITMAPINFOHEADER ) );
	436
	437	#if wxUSE_DRAWBITMAP_24BITS
	438	int iBitsSize = ((width + 3 ) & ~3 ) * height * 3;
	439	#else
	440	int iBitsSize = ((width + 3 ) & ~3 ) * height ;
	441	#endif
	442
	443	void* bits = malloc( iBitsSize );
	444
	445	info->bmiHeader.biSize = sizeof( BITMAPINFOHEADER );
	446	info->bmiHeader.biWidth = width;
	447	info->bmiHeader.biHeight = height;
	448	info->bmiHeader.biPlanes = 1;
	449	#if wxUSE_DRAWBITMAP_24BITS
	450	info->bmiHeader.biBitCount = 24;
	451	#else
	452	info->bmiHeader.biBitCount = 8;
	453	#endif
	454	info->bmiHeader.biCompression = BI_RGB;
	455
	456	ScreenHDC display;
	457	if ( GetDIBits(display, GetHbitmapOf(bmp), 0,
	458	bmp.GetHeight(), bits, info,
	459	DIB_RGB_COLORS) )
	460	{
	461	if ( ::StretchDIBits(GetHdc(), x, y,
	462	width, height,
	463	0 , 0, width, height,
	464	bits, info,
	465	DIB_RGB_COLORS, SRCCOPY) == GDI_ERROR )
	466	{
	467	wxLogLastError(wxT("StretchDIBits"));
	468	}
	469	}
	470
	471	free(bits);
	472	free(info);
	473	}
	474	else // no support for StretchDIBits()
	475	{
	476	wxMemoryDC memDC;
	477	memDC.SelectObject(bmp);
	478
	479	Blit(x, y, width, height, &memDC, 0, 0, wxCOPY, useMask);
	480
	481	memDC.SelectObject(wxNullBitmap);
	482	}
	483	}
	484
	485	bool wxPrinterDC::DoBlit(wxCoord xdest, wxCoord ydest,
	486	wxCoord width, wxCoord height,
	487	wxDC *source,
	488	wxCoord xsrc, wxCoord ysrc,
	489	int WXUNUSED(rop), bool useMask,
	490	wxCoord WXUNUSED(xsrcMask), wxCoord WXUNUSED(ysrcMask))
	491	{
	492	bool success = TRUE;
	493
	494	if ( useMask )
	495	{
	496	// If we are printing source colours are screen colours
	497	// not printer colours and so we need copy the bitmap
	498	// pixel by pixel.
	499	RECT rect;
	500	HDC dc_src = GetHdcOf(*source);
	501	HDC dc_mask = ::CreateCompatibleDC(dc_src);
	502
	503	::SelectObject(dc_mask, (HBITMAP) source->GetSelectedBitmap().GetMask()->GetMaskBitmap());
	504	for (int x = 0; x < width; x++)
	505	{
	506	for (int y = 0; y < height; y++)
	507	{
	508	COLORREF cref = ::GetPixel(dc_mask, x, y);
	509	if (cref)
	510	{
	511	HBRUSH brush = ::CreateSolidBrush(::GetPixel(dc_src, x, y));
	512	rect.left = xdest + x;
	513	rect.right = rect.left + 1;
	514	rect.top = ydest + y;
	515	rect.bottom = rect.top + 1;
	516	::FillRect(GetHdc(), &rect, brush);
	517	::DeleteObject(brush);
	518	}
	519	}
	520	}
	521	::SelectObject(dc_mask, 0);
	522	::DeleteDC(dc_mask);
	523	}
	524	else // no mask
	525	{
	526	if ( ::GetDeviceCaps(GetHdc(), RASTERCAPS) & RC_STRETCHDIB )
	527	{
	528	wxBitmap& bmp = source->GetSelectedBitmap();
	529	int width = bmp.GetWidth(),
	530	height = bmp.GetHeight();
	531
	532	BITMAPINFO info = (BITMAPINFO ) malloc( sizeof( BITMAPINFOHEADER ) + 256 * sizeof(RGBQUAD ) );
	533	int iBitsSize = ((width + 3 ) & ~3 ) * height;
	534
	535	void* bits = malloc( iBitsSize );
	536
	537	memset( info , 0 , sizeof( BITMAPINFOHEADER ) );
	538
	539	info->bmiHeader.biSize = sizeof( BITMAPINFOHEADER );
	540	info->bmiHeader.biWidth = width;
	541	info->bmiHeader.biHeight = height;
	542	info->bmiHeader.biPlanes = 1;
	543	info->bmiHeader.biBitCount = 8;
	544	info->bmiHeader.biCompression = BI_RGB;
	545
	546	ScreenHDC display;
	547	if ( !::GetDIBits(display, GetHbitmapOf(bmp), 0,
	548	height, bits, info, DIB_RGB_COLORS) )
	549	{
	550	wxLogLastError(wxT("GetDIBits"));
	551
	552	success = FALSE;
	553	}
	554
	555	if ( success )
	556	{
	557	success = ::StretchDIBits(GetHdc(), xdest, ydest,
	558	width, height,
	559	xsrc, ysrc,
	560	width, height,
	561	bits, info ,
	562	DIB_RGB_COLORS,
	563	SRCCOPY) != GDI_ERROR;
	564	if ( !success )
	565	{
	566	wxLogLastError(wxT("StretchDIBits"));
	567	}
	568	}
	569
	570	free(bits);
	571	free(info);
	572	}
	573	else // no support for StretchDIBits
	574	{
	575	// as we are printing, source colours are screen colours not printer
	576	// colours and so we need copy the bitmap pixel by pixel.
	577	HDC dc_src = GetHdcOf(*source);
	578	RECT rect;
	579	for (int y = 0; y < height; y++)
	580	{
	581	// This is Stefan Csomor's optimisation, where identical adjacent
	582	// pixels are drawn together.
	583	for (int x = 0; x < width; x++)
	584	{
	585	COLORREF col = ::GetPixel(dc_src, x, y);
	586	HBRUSH brush = ::CreateSolidBrush( col );
	587
	588	rect.left = xdest + x;
	589	rect.top = ydest + y;
	590	while( (x + 1 < width) && (::GetPixel(dc_src, x + 1, y) == col ) )
	591	{
	592	++x;
	593	}
	594	rect.right = xdest + x + 1;
	595	rect.bottom = rect.top + 1;
	596	::FillRect((HDC) m_hDC, &rect, brush);
	597	::DeleteObject(brush);
	598	}
	599	}
	600	}
	601	}
	602
	603	return success;
	604	}
	605
	606	#endif
	607	// wxUSE_PRINTING_ARCHITECTURE