/////////////////////////////////////////////////////////////////////////////
// Name: src/msw/dcprint.cpp
// Purpose: wxPrinterDC class
// Author: Julian Smart
// Modified by:
// Created: 01/02/97
// Copyright: (c) Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#if wxUSE_PRINTING_ARCHITECTURE
#include "wx/dcprint.h"
#include "wx/msw/dcprint.h"
#ifndef WX_PRECOMP
#include "wx/msw/wrapcdlg.h"
#include "wx/string.h"
#include "wx/log.h"
#include "wx/window.h"
#include "wx/dcmemory.h"
#include "wx/math.h"
#endif
#include "wx/msw/private.h"
#if wxUSE_WXDIB
#include "wx/msw/dib.h"
#endif
#include "wx/printdlg.h"
#include "wx/msw/printdlg.h"
// mingw32 defines GDI_ERROR incorrectly
#if defined(__GNUWIN32__) || !defined(GDI_ERROR)
#undef GDI_ERROR
#define GDI_ERROR ((int)-1)
#endif
#if defined(__WXUNIVERSAL__) && wxUSE_POSTSCRIPT_ARCHITECTURE_IN_MSW
#define wxUSE_PS_PRINTING 1
#else
#define wxUSE_PS_PRINTING 0
#endif
// ----------------------------------------------------------------------------
// wxWin macros
// ----------------------------------------------------------------------------
wxIMPLEMENT_ABSTRACT_CLASS(wxPrinterDCImpl, wxMSWDCImpl);
// ============================================================================
// implementation
// ============================================================================
// ----------------------------------------------------------------------------
// wxPrinterDC construction
// ----------------------------------------------------------------------------
#if 0
// This form is deprecated
wxPrinterDC::wxPrinterDC(const wxString& driver_name,
const wxString& device_name,
const wxString& file,
bool interactive,
wxPrintOrientation 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.t_str(),
device_name.t_str(),
file.fn_str(),
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();
}
#endif
wxPrinterDCImpl::wxPrinterDCImpl( wxPrinterDC *owner, const wxPrintData& printData ) :
wxMSWDCImpl( owner )
{
m_printData = printData;
m_isInteractive = false;
m_hDC = wxGetPrinterDC(printData);
m_ok = m_hDC != 0;
m_bOwnsDC = true;
Init();
}
wxPrinterDCImpl::wxPrinterDCImpl( wxPrinterDC *owner, WXHDC dc ) :
wxMSWDCImpl( owner )
{
m_isInteractive = false;
m_hDC = dc;
m_bOwnsDC = true;
m_ok = true;
}
void wxPrinterDCImpl::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);
}
}
// ----------------------------------------------------------------------------
// wxPrinterDCImpl {Start/End}{Page/Doc} methods
// ----------------------------------------------------------------------------
bool wxPrinterDCImpl::StartDoc(const wxString& message)
{
DOCINFO docinfo;
docinfo.cbSize = sizeof(DOCINFO);
docinfo.lpszDocName = message.t_str();
wxString filename(m_printData.GetFilename());
if (filename.empty())
docinfo.lpszOutput = NULL;
else
docinfo.lpszOutput = filename.t_str();
docinfo.lpszDatatype = NULL;
docinfo.fwType = 0;
if (!m_hDC)
return false;
if ( ::StartDoc(GetHdc(), &docinfo) <= 0 )
{
wxLogLastError(wxT("StartDoc"));
return false;
}
return true;
}
void wxPrinterDCImpl::EndDoc()
{
if (m_hDC) ::EndDoc((HDC) m_hDC);
}
void wxPrinterDCImpl::StartPage()
{
if (m_hDC)
::StartPage((HDC) m_hDC);
}
void wxPrinterDCImpl::EndPage()
{
if (m_hDC)
::EndPage((HDC) m_hDC);
}
wxRect wxPrinterDCImpl::GetPaperRect() const
{
if (!IsOk()) return wxRect(0, 0, 0, 0);
int w = ::GetDeviceCaps((HDC) m_hDC, PHYSICALWIDTH);
int h = ::GetDeviceCaps((HDC) m_hDC, PHYSICALHEIGHT);
int x = -::GetDeviceCaps((HDC) m_hDC, PHYSICALOFFSETX);
int y = -::GetDeviceCaps((HDC) m_hDC, PHYSICALOFFSETY);
return wxRect(x, y, w, h);
}
#if !wxUSE_PS_PRINTING
// Returns default device and port names
static bool wxGetDefaultDeviceName(wxString& deviceName, wxString& portName)
{
deviceName.clear();
LPDEVNAMES lpDevNames;
LPTSTR lpszDeviceName;
LPTSTR lpszPortName;
PRINTDLG pd;
memset(&pd, 0, sizeof(PRINTDLG));
pd.lStructSize = sizeof(PRINTDLG);
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);
lpszDeviceName = (LPTSTR)lpDevNames + lpDevNames->wDeviceOffset;
lpszPortName = (LPTSTR)lpDevNames + lpDevNames->wOutputOffset;
deviceName = lpszDeviceName;
portName = lpszPortName;
GlobalUnlock(pd.hDevNames);
GlobalFree(pd.hDevNames);
pd.hDevNames=NULL;
}
if (pd.hDevMode)
{
GlobalFree(pd.hDevMode);
pd.hDevMode=NULL;
}
return ( !deviceName.empty() );
}
#endif // !wxUSE_PS_PRINTING
// Gets an HDC for the specified printer configuration
WXHDC WXDLLEXPORT wxGetPrinterDC(const wxPrintData& printDataConst)
{
#if wxUSE_PS_PRINTING
// TODO
wxUnusedVar(printDataConst);
return 0;
#else // native Windows printing
wxWindowsPrintNativeData *data =
(wxWindowsPrintNativeData *) printDataConst.GetNativeData();
data->TransferFrom( printDataConst );
wxString deviceName = printDataConst.GetPrinterName();
if ( deviceName.empty() )
{
// Retrieve the default device name
wxString portName;
if ( !wxGetDefaultDeviceName(deviceName, portName) )
{
return 0; // Could not get default device name
}
}
GlobalPtrLock lockDevMode;
const HGLOBAL devMode = data->GetDevMode();
if ( devMode )
lockDevMode.Init(devMode);
HDC hDC = ::CreateDC
(
NULL, // no driver name as we use device name
deviceName.t_str(),
NULL, // unused
static_cast<DEVMODE *>(lockDevMode.Get())
);
if ( !hDC )
{
wxLogLastError(wxT("CreateDC(printer)"));
}
return (WXHDC) hDC;
#endif // PostScript/Windows printing
}
// ----------------------------------------------------------------------------
// wxPrinterDCImpl bit blitting/bitmap drawing
// ----------------------------------------------------------------------------
// helper of DoDrawBitmap() and DoBlit()
static
bool DrawBitmapUsingStretchDIBits(HDC hdc,
const wxBitmap& bmp,
wxCoord x, wxCoord y)
{
#if wxUSE_WXDIB
wxDIB dib(bmp);
bool ok = dib.IsOk();
if ( !ok )
return false;
DIBSECTION ds;
if ( !::GetObject(dib.GetHandle(), sizeof(ds), &ds) )
{
wxLogLastError(wxT("GetObject(DIBSECTION)"));
return false;
}
// ok, we've got all data we need, do blit it
if ( ::StretchDIBits
(
hdc,
x, y,
ds.dsBmih.biWidth, ds.dsBmih.biHeight,
0, 0,
ds.dsBmih.biWidth, ds.dsBmih.biHeight,
ds.dsBm.bmBits,
(LPBITMAPINFO)&ds.dsBmih,
DIB_RGB_COLORS,
SRCCOPY
) == GDI_ERROR )
{
wxLogLastError(wxT("StretchDIBits"));
return false;
}
return true;
#else
return false;
#endif
}
void wxPrinterDCImpl::DoDrawBitmap(const wxBitmap& bmp,
wxCoord x, wxCoord y,
bool useMask)
{
wxCHECK_RET( bmp.IsOk(), wxT("invalid bitmap in wxPrinterDC::DrawBitmap") );
int width = bmp.GetWidth(),
height = bmp.GetHeight();
if ( !(::GetDeviceCaps(GetHdc(), RASTERCAPS) & RC_STRETCHDIB) ||
!DrawBitmapUsingStretchDIBits(GetHdc(), bmp, x, y) )
{
// no support for StretchDIBits() or an error occurred if we got here
wxMemoryDC memDC;
memDC.SelectObjectAsSource(bmp);
GetOwner()->Blit(x, y, width, height, &memDC, 0, 0, wxCOPY, useMask);
memDC.SelectObject(wxNullBitmap);
}
}
bool wxPrinterDCImpl::DoBlit(wxCoord xdest, wxCoord ydest,
wxCoord width, wxCoord height,
wxDC *source,
wxCoord WXUNUSED(xsrc), wxCoord WXUNUSED(ysrc),
wxRasterOperationMode WXUNUSED(rop), bool useMask,
wxCoord WXUNUSED(xsrcMask), wxCoord WXUNUSED(ysrcMask))
{
wxDCImpl *impl = source->GetImpl();
wxMSWDCImpl *msw_impl = wxDynamicCast(impl, wxMSWDCImpl);
if (!msw_impl)
return false;
wxBitmap& bmp = msw_impl->GetSelectedBitmap();
wxMask *mask = useMask ? bmp.GetMask() : NULL;
if ( mask )
{
// 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 dcSrc = GetHdcOf(*msw_impl);
MemoryHDC dcMask(dcSrc);
SelectInHDC selectMask(dcMask, (HBITMAP)mask->GetMaskBitmap());
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
COLORREF cref = ::GetPixel(dcMask, x, y);
if (cref)
{
HBRUSH brush = ::CreateSolidBrush(::GetPixel(dcSrc, 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);
}
}
}
}
else // no mask
{
if ( !(::GetDeviceCaps(GetHdc(), RASTERCAPS) & RC_STRETCHDIB) ||
!DrawBitmapUsingStretchDIBits(GetHdc(), bmp, xdest, ydest) )
{
// 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 dcSrc = GetHdcOf(*msw_impl);
RECT rect;
for (int y = 0; y < height; y++)
{
// optimization: draw identical adjacent pixels together.
for (int x = 0; x < width; x++)
{
COLORREF col = ::GetPixel(dcSrc, x, y);
HBRUSH brush = ::CreateSolidBrush( col );
rect.left = xdest + x;
rect.top = ydest + y;
while( (x + 1 < width) &&
(::GetPixel(dcSrc, x + 1, y) == col ) )
{
++x;
}
rect.right = xdest + x + 1;
rect.bottom = rect.top + 1;
::FillRect((HDC) m_hDC, &rect, brush);
::DeleteObject(brush);
}
}
}
}
return true;
}
#endif
// wxUSE_PRINTING_ARCHITECTURE
↑ V818 It is more efficient to use an initialization list 'm_printData(printData)' rather than an assignment operator.