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: %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.clear();

    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 // 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

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,
	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: %d\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	LPSTR lpszDriverName;
	228	LPSTR lpszDeviceName;
	229	LPSTR lpszPortName;
	230
	231	PRINTDLG pd;
	232
	233	// Cygwin has trouble believing PRINTDLG is 66 bytes - thinks it is 68
	234	#ifdef __GNUWIN32__
	235	pd.lStructSize = 66; // sizeof(PRINTDLG);
	236	#else
	237	pd.lStructSize = sizeof(PRINTDLG);
	238	#endif
	239
	240	pd.hwndOwner = (HWND)NULL;
	241	pd.hDevMode = NULL; // Will be created by PrintDlg
	242	pd.hDevNames = NULL; // Ditto
	243	pd.Flags = PD_RETURNDEFAULT;
	244	pd.nCopies = 1;
	245
	246	if (!PrintDlg((LPPRINTDLG)&pd))
	247	{
	248	if ( pd.hDevMode )
	249	GlobalFree(pd.hDevMode);
	250	if (pd.hDevNames)
	251	GlobalFree(pd.hDevNames);
	252
	253	return FALSE;
	254	}
	255
	256	if (pd.hDevNames)
	257	{
	258	lpDevNames = (LPDEVNAMES)GlobalLock(pd.hDevNames);
	259	lpszDriverName = (LPSTR)lpDevNames + lpDevNames->wDriverOffset;
	260	lpszDeviceName = (LPSTR)lpDevNames + lpDevNames->wDeviceOffset;
	261	lpszPortName = (LPSTR)lpDevNames + lpDevNames->wOutputOffset;
	262
	263	deviceName = lpszDeviceName;
	264	portName = lpszPortName;
	265
	266	GlobalUnlock(pd.hDevNames);
	267	GlobalFree(pd.hDevNames);
	268	pd.hDevNames=NULL;
	269	}
	270
	271	if (pd.hDevMode)
	272	{
	273	GlobalFree(pd.hDevMode);
	274	pd.hDevMode=NULL;
	275	}
	276	return ( deviceName != wxT("") );
	277	}
	278
	279	#if 0
	280	// This uses defaults, except for orientation, so we should eliminate this function
	281	// and use the 2nd form (passing wxPrintData) instead.
	282	WXHDC wxGetPrinterDC(int orientation)
	283	{
	284	HDC hDC;
	285	LPDEVMODE lpDevMode = NULL;
	286	LPDEVNAMES lpDevNames;
	287	LPSTR lpszDriverName;
	288	LPSTR lpszDeviceName;
	289	LPSTR lpszPortName;
	290
	291	PRINTDLG pd;
	292	// __GNUWIN32__ has trouble believing PRINTDLG is 66 bytes - thinks it is 68
	293	#ifdef __GNUWIN32__
	294	pd.lStructSize = 66; // sizeof(PRINTDLG);
	295	#else
	296	pd.lStructSize = sizeof(PRINTDLG);
	297	#endif
	298	pd.hwndOwner = (HWND)NULL;
	299	pd.hDevMode = NULL; // Will be created by PrintDlg
	300	pd.hDevNames = NULL; // Ditto
	301	pd.Flags = PD_RETURNDEFAULT;
	302	pd.nCopies = 1;
	303
	304	if (!PrintDlg((LPPRINTDLG)&pd))
	305	{
	306	if ( pd.hDevMode )
	307	GlobalFree(pd.hDevMode);
	308	if (pd.hDevNames)
	309	GlobalFree(pd.hDevNames);
	310
	311	return(0);
	312	}
	313
	314	if (!pd.hDevNames)
	315	{
	316	if ( pd.hDevMode )
	317	GlobalFree(pd.hDevMode);
	318	}
	319
	320	lpDevNames = (LPDEVNAMES)GlobalLock(pd.hDevNames);
	321	lpszDriverName = (LPSTR)lpDevNames + lpDevNames->wDriverOffset;
	322	lpszDeviceName = (LPSTR)lpDevNames + lpDevNames->wDeviceOffset;
	323	lpszPortName = (LPSTR)lpDevNames + lpDevNames->wOutputOffset;
	324	GlobalUnlock(pd.hDevNames);
	325
	326	if ( pd.hDevMode )
	327	{
	328	lpDevMode = (DEVMODE*) GlobalLock(pd.hDevMode);
	329	lpDevMode->dmOrientation = orientation;
	330	lpDevMode->dmFields \|= DM_ORIENTATION;
	331	}
	332
	333	#ifdef __WIN32__
	334	hDC = CreateDC(lpszDriverName, lpszDeviceName, lpszPortName, (DEVMODE *)lpDevMode);
	335	#else
	336	hDC = CreateDC(lpszDriverName, lpszDeviceName, lpszPortName, (LPSTR)lpDevMode);
	337	#endif
	338
	339	if (pd.hDevMode && lpDevMode)
	340	GlobalUnlock(pd.hDevMode);
	341
	342	if (pd.hDevNames)
	343	{
	344	GlobalFree(pd.hDevNames);
	345	pd.hDevNames=NULL;
	346	}
	347	if (pd.hDevMode)
	348	{
	349	GlobalFree(pd.hDevMode);
	350	pd.hDevMode=NULL;
	351	}
	352	return (WXHDC) hDC;
	353	}
	354	#endif // 0
	355
	356	// Gets an HDC for the specified printer configuration
	357	WXHDC WXDLLEXPORT wxGetPrinterDC(const wxPrintData& printDataConst)
	358	{
	359	wxPrintData printData = printDataConst;
	360	printData.ConvertToNative();
	361
	362	wxChar* driverName = (wxChar*) NULL;
	363
	364	wxString devNameStr = printData.GetPrinterName();
	365	wxChar* portName = (wxChar*) NULL; // Obsolete in WIN32
	366
	367	const wxChar* deviceName;
	368	if ( !devNameStr )
	369	deviceName = (wxChar*) NULL;
	370	else
	371	deviceName = devNameStr.c_str();
	372
	373	LPDEVMODE lpDevMode = (LPDEVMODE) NULL;
	374
	375	HGLOBAL hDevMode = (HGLOBAL)(DWORD) printData.GetNativeData();
	376
	377	if ( hDevMode )
	378	lpDevMode = (DEVMODE*) GlobalLock(hDevMode);
	379
	380	if ( !devNameStr )
	381	{
	382	// Retrieve the default device name
	383	wxString portName;
	384	#ifdef __WXDEBUG__
	385	bool ret =
	386	#else // !Debug
	387	(void)
	388	#endif // Debug/Release
	389	wxGetDefaultDeviceName(devNameStr, portName);
	390
	391	wxASSERT_MSG( ret, wxT("Could not get default device name.") );
	392
	393	deviceName = devNameStr.c_str();
	394	}
	395
	396	#ifdef __WIN32__
	397	HDC hDC = CreateDC(driverName, deviceName, portName, (DEVMODE *) lpDevMode);
	398	#else
	399	HDC hDC = CreateDC(driverName, deviceName, portName, (LPSTR) lpDevMode);
	400	#endif
	401
	402	if (hDevMode && lpDevMode)
	403	GlobalUnlock(hDevMode);
	404
	405	return (WXHDC) hDC;
	406	}
	407
	408	// ----------------------------------------------------------------------------
	409	// wxPrinterDC bit blitting/bitmap drawing
	410	// ----------------------------------------------------------------------------
	411
	412	// Win16 doesn't define GDI_ERROR.
	413	#ifndef GDI_ERROR
	414	#define GDI_ERROR -1
	415	#endif
	416
	417	void wxPrinterDC::DoDrawBitmap(const wxBitmap &bmp,
	418	wxCoord x, wxCoord y,
	419	bool useMask)
	420	{
	421	wxCHECK_RET( bmp.Ok(), _T("invalid bitmap in wxPrinterDC::DrawBitmap") );
	422
	423	int width = bmp.GetWidth(),
	424	height = bmp.GetHeight();
	425
	426	if ( ::GetDeviceCaps(GetHdc(), RASTERCAPS) & RC_STRETCHDIB )
	427	{
	428	BITMAPINFO info = (BITMAPINFO ) malloc( sizeof( BITMAPINFOHEADER ) + 256 * sizeof(RGBQUAD ) );
	429	memset( info, 0, sizeof( BITMAPINFOHEADER ) );
	430
	431	int iBitsSize = ((width + 3 ) & ~3 ) * height;
	432
	433	void* bits = malloc( iBitsSize );
	434
	435	info->bmiHeader.biSize = sizeof( BITMAPINFOHEADER );
	436	info->bmiHeader.biWidth = width;
	437	info->bmiHeader.biHeight = height;
	438	info->bmiHeader.biPlanes = 1;
	439	info->bmiHeader.biBitCount = 8;
	440	info->bmiHeader.biCompression = BI_RGB;
	441
	442	ScreenHDC display;
	443	if ( GetDIBits(display, GetHbitmapOf(bmp), 0,
	444	bmp.GetHeight(), bits, info,
	445	DIB_RGB_COLORS) )
	446	{
	447	if ( ::StretchDIBits(GetHdc(), x, y,
	448	width, height,
	449	0 , 0, width, height,
	450	bits, info,
	451	DIB_RGB_COLORS, SRCCOPY) == GDI_ERROR )
	452	{
	453	wxLogLastError(wxT("StretchDIBits"));
	454	}
	455	}
	456
	457	free(bits);
	458	free(info);
	459	}
	460	else // no support for StretchDIBits()
	461	{
	462	wxMemoryDC memDC;
	463	memDC.SelectObject(bmp);
	464
	465	Blit(x, y, width, height, &memDC, 0, 0, wxCOPY, useMask);
	466
	467	memDC.SelectObject(wxNullBitmap);
	468	}
	469	}
	470
	471	bool wxPrinterDC::DoBlit(wxCoord xdest, wxCoord ydest,
	472	wxCoord width, wxCoord height,
	473	wxDC *source,
	474	wxCoord xsrc, wxCoord ysrc,
	475	int rop, bool useMask)
	476	{
	477	bool success = TRUE;
	478
	479	if ( useMask )
	480	{
	481	// If we are printing source colours are screen colours
	482	// not printer colours and so we need copy the bitmap
	483	// pixel by pixel.
	484	RECT rect;
	485	HDC dc_src = GetHdcOf(*source);
	486	HDC dc_mask = ::CreateCompatibleDC(dc_src);
	487
	488	::SelectObject(dc_mask, (HBITMAP) source->GetSelectedBitmap().GetMask()->GetMaskBitmap());
	489	for (int x = 0; x < width; x++)
	490	{
	491	for (int y = 0; y < height; y++)
	492	{
	493	COLORREF cref = ::GetPixel(dc_mask, x, y);
	494	if (cref)
	495	{
	496	HBRUSH brush = ::CreateSolidBrush(::GetPixel(dc_src, x, y));
	497	rect.left = xdest + x;
	498	rect.right = rect.left + 1;
	499	rect.top = ydest + y;
	500	rect.bottom = rect.top + 1;
	501	::FillRect(GetHdc(), &rect, brush);
	502	::DeleteObject(brush);
	503	}
	504	}
	505	}
	506	::SelectObject(dc_mask, 0);
	507	::DeleteDC(dc_mask);
	508	}
	509	else // no mask
	510	{
	511	if ( ::GetDeviceCaps(GetHdc(), RASTERCAPS) & RC_STRETCHDIB )
	512	{
	513	wxBitmap& bmp = source->GetSelectedBitmap();
	514	int width = bmp.GetWidth(),
	515	height = bmp.GetHeight();
	516
	517	BITMAPINFO info = (BITMAPINFO ) malloc( sizeof( BITMAPINFOHEADER ) + 256 * sizeof(RGBQUAD ) );
	518	int iBitsSize = ((width + 3 ) & ~3 ) * height;
	519
	520	void* bits = malloc( iBitsSize );
	521
	522	memset( info , 0 , sizeof( BITMAPINFOHEADER ) );
	523
	524	info->bmiHeader.biSize = sizeof( BITMAPINFOHEADER );
	525	info->bmiHeader.biWidth = width;
	526	info->bmiHeader.biHeight = height;
	527	info->bmiHeader.biPlanes = 1;
	528	info->bmiHeader.biBitCount = 8;
	529	info->bmiHeader.biCompression = BI_RGB;
	530
	531	ScreenHDC display;
	532	if ( !::GetDIBits(display, GetHbitmapOf(bmp), 0,
	533	height, bits, info, DIB_RGB_COLORS) )
	534	{
	535	wxLogLastError(wxT("GetDIBits"));
	536
	537	success = FALSE;
	538	}
	539
	540	if ( success )
	541	{
	542	success = ::StretchDIBits(GetHdc(), xdest, ydest,
	543	width, height,
	544	xsrc, ysrc,
	545	width, height,
	546	bits, info ,
	547	DIB_RGB_COLORS,
	548	SRCCOPY) != GDI_ERROR;
	549	if ( !success )
	550	{
	551	wxLogLastError(wxT("StretchDIBits"));
	552	}
	553	}
	554
	555	free(bits);
	556	free(info);
	557	}
	558	else // no support for StretchDIBits
	559	{
	560	// as we are printing, source colours are screen colours not printer
	561	// colours and so we need copy the bitmap pixel by pixel.
	562	HDC dc_src = GetHdcOf(*source);
	563	RECT rect;
	564	for (int y = 0; y < height; y++)
	565	{
	566	// This is Stefan Csomor's optimisation, where identical adjacent
	567	// pixels are drawn together.
	568	for (int x = 0; x < width; x++)
	569	{
	570	COLORREF col = ::GetPixel(dc_src, x, y);
	571	HBRUSH brush = ::CreateSolidBrush( col );
	572
	573	rect.left = xdest + x;
	574	rect.top = ydest + y;
	575	while( (x + 1 < width) && (::GetPixel(dc_src, x + 1, y) == col ) )
	576	{
	577	++x;
	578	}
	579	rect.right = xdest + x + 1;
	580	rect.bottom = rect.top + 1;
	581	::FillRect((HDC) m_hDC, &rect, brush);
	582	::DeleteObject(brush);
	583	}
	584	}
	585	}
	586	}
	587
	588	return success;
	589	}
	590
	591	#endif
	592	// wxUSE_PRINTING_ARCHITECTURE