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 )
        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;

        if ( PrintDlg( &pd ) != 0 )
        {
            m_hDC = (WXHDC) pd.hDC;
            m_ok = TRUE;
        }
        else
        {
            m_ok = FALSE;
            return;
        }

        //     m_dontDelete = TRUE;
    }
    else
#endif // wxUSE_COMMON_DIALOGS
        if ((!driver_name.IsNull() && driver_name != wxT("")) &&
            (!device_name.IsNull() && device_name != wxT("")) &&
            (!file.IsNull() && file != wxT("")))
        {
            m_hDC = (WXHDC) CreateDC(WXSTRINGCAST driver_name, WXSTRINGCAST device_name, WXSTRINGCAST file, NULL);
            m_ok = m_hDC ? TRUE: FALSE;
        }
        else
        {
            wxPrintData printData;
            printData.SetOrientation(orientation);
            m_hDC = wxGetPrinterDC(printData);
            m_ok = m_hDC ? TRUE: FALSE;
        }

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

    m_isInteractive = FALSE;

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

    if (m_hDC)
        SetMapMode(wxMM_TEXT);

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


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

    m_hDC = theDC;
    m_ok = TRUE;
    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::~wxPrinterDC()
{
}

// ----------------------------------------------------------------------------
// 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: %d\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 = "";

    LPDEVNAMES  lpDevNames;
    LPSTR       lpszDriverName;
    LPSTR       lpszDeviceName;
    LPSTR       lpszPortName;

    PRINTDLG    pd;

    // Cygwin 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 FALSE;
    }

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

// 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

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 ) );

        int iBitsSize = ((width + 3 ) & ~3 ) * height;

        void* bits = malloc( iBitsSize );

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