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

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