src/msw/dcprint.cpp

   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
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #if wxUSE_PRINTING_ARCHITECTURE
  28
  29 #include "wx/dcprint.h"
  30 #include "wx/msw/dcprint.h"
  31
  32 #ifndef WX_PRECOMP
  33     #include "wx/msw/wrapcdlg.h"
  34     #include "wx/string.h"
  35     #include "wx/log.h"
  36     #include "wx/window.h"
  37     #include "wx/dcmemory.h"
  38     #include "wx/math.h"
  39 #endif
  40
  41 #include "wx/msw/private.h"
  42
  43 #if wxUSE_WXDIB
  44     #include "wx/msw/dib.h"
  45 #endif
  46
  47 #include "wx/printdlg.h"
  48 #include "wx/msw/printdlg.h"
  49
  50 #ifndef __WIN32__
  51     #include <print.h>
  52 #endif
  53
  54 // mingw32 defines GDI_ERROR incorrectly
  55 #if defined(__GNUWIN32__) || !defined(GDI_ERROR)
  56     #undef GDI_ERROR
  57     #define GDI_ERROR ((int)-1)
  58 #endif
  59
  60 #if defined(__WXUNIVERSAL__) && wxUSE_POSTSCRIPT_ARCHITECTURE_IN_MSW
  61     #define wxUSE_PS_PRINTING 1
  62 #else
  63     #define wxUSE_PS_PRINTING 0
  64 #endif
  65
  66 // ----------------------------------------------------------------------------
  67 // wxWin macros
  68 // ----------------------------------------------------------------------------
  69
  70 IMPLEMENT_ABSTRACT_CLASS(wxPrinterDCImpl, wxMSWDCImpl)
  71
  72 // ============================================================================
  73 // implementation
  74 // ============================================================================
  75
  76 // ----------------------------------------------------------------------------
  77 // wxPrinterDC construction
  78 // ----------------------------------------------------------------------------
  79
  80 #if 0
  81 // This form is deprecated
  82 wxPrinterDC::wxPrinterDC(const wxString& driver_name,
  83                          const wxString& device_name,
  84                          const wxString& file,
  85                          bool interactive,
  86                          int orientation)
  87 {
  88     m_isInteractive = interactive;
  89
  90     if ( !file.empty() )
  91         m_printData.SetFilename(file);
  92
  93 #if wxUSE_COMMON_DIALOGS
  94     if ( interactive )
  95     {
  96         PRINTDLG pd;
  97
  98         pd.lStructSize = sizeof( PRINTDLG );
  99         pd.hwndOwner = (HWND) NULL;
 100         pd.hDevMode = (HANDLE)NULL;
 101         pd.hDevNames = (HANDLE)NULL;
 102         pd.Flags = PD_RETURNDC | PD_NOSELECTION | PD_NOPAGENUMS;
 103         pd.nFromPage = 0;
 104         pd.nToPage = 0;
 105         pd.nMinPage = 0;
 106         pd.nMaxPage = 0;
 107         pd.nCopies = 1;
 108         pd.hInstance = (HINSTANCE)NULL;
 109
 110         m_ok = PrintDlg( &pd ) != 0;
 111         if ( m_ok )
 112         {
 113             m_hDC = (WXHDC) pd.hDC;
 114         }
 115     }
 116     else
 117 #endif // wxUSE_COMMON_DIALOGS
 118     {
 119         if ( !driver_name.empty() && !device_name.empty() && !file.empty() )
 120         {
 121             m_hDC = (WXHDC) CreateDC(driver_name.wx_str(),
 122                                      device_name.wx_str(),
 123                                      file.fn_str(),
 124                                      NULL);
 125         }
 126         else // we don't have all parameters, ask the user
 127         {
 128             wxPrintData printData;
 129             printData.SetOrientation(orientation);
 130             m_hDC = wxGetPrinterDC(printData);
 131         }
 132
 133         m_ok = m_hDC ? true: false;
 134
 135         // as we created it, we must delete it as well
 136         m_bOwnsDC = true;
 137     }
 138
 139     Init();
 140 }
 141 #endif
 142
 143 wxPrinterDCImpl::wxPrinterDCImpl( wxPrinterDC *owner, const wxPrintData& printData ) :
 144     wxMSWDCImpl( owner )
 145 {
 146     m_printData = printData;
 147
 148     m_isInteractive = false;
 149
 150     m_hDC = wxGetPrinterDC(printData);
 151     m_ok = m_hDC != 0;
 152     m_bOwnsDC = true;
 153
 154     Init();
 155 }
 156
 157
 158 wxPrinterDCImpl::wxPrinterDCImpl( wxPrinterDC *owner, WXHDC dc ) :
 159     wxMSWDCImpl( owner )
 160 {
 161     m_isInteractive = false;
 162
 163     m_hDC = dc;
 164     m_bOwnsDC = true;
 165     m_ok = true;
 166 }
 167
 168 void wxPrinterDCImpl::Init()
 169 {
 170     if ( m_hDC )
 171     {
 172         //     int width = GetDeviceCaps(m_hDC, VERTRES);
 173         //     int height = GetDeviceCaps(m_hDC, HORZRES);
 174         SetMapMode(wxMM_TEXT);
 175
 176         SetBrush(*wxBLACK_BRUSH);
 177         SetPen(*wxBLACK_PEN);
 178     }
 179 }
 180
 181 // ----------------------------------------------------------------------------
 182 // wxPrinterDCImpl {Start/End}{Page/Doc} methods
 183 // ----------------------------------------------------------------------------
 184
 185 bool wxPrinterDCImpl::StartDoc(const wxString& message)
 186 {
 187     DOCINFO docinfo;
 188     docinfo.cbSize = sizeof(DOCINFO);
 189     docinfo.lpszDocName = message.wx_str();
 190
 191     wxString filename(m_printData.GetFilename());
 192
 193     if (filename.empty())
 194         docinfo.lpszOutput = NULL;
 195     else
 196         docinfo.lpszOutput = filename.wx_str();
 197
 198     docinfo.lpszDatatype = NULL;
 199     docinfo.fwType = 0;
 200
 201     if (!m_hDC)
 202         return false;
 203
 204     if ( ::StartDoc(GetHdc(), &docinfo) <= 0 )
 205     {
 206         wxLogLastError(wxT("StartDoc"));
 207         return false;
 208     }
 209
 210     return true;
 211 }
 212
 213 void wxPrinterDCImpl::EndDoc()
 214 {
 215     if (m_hDC) ::EndDoc((HDC) m_hDC);
 216 }
 217
 218 void wxPrinterDCImpl::StartPage()
 219 {
 220     if (m_hDC)
 221         ::StartPage((HDC) m_hDC);
 222 }
 223
 224 void wxPrinterDCImpl::EndPage()
 225 {
 226     if (m_hDC)
 227         ::EndPage((HDC) m_hDC);
 228 }
 229
 230
 231 wxRect wxPrinterDCImpl::GetPaperRect() const
 232
 233 {
 234     if (!IsOk()) return wxRect(0, 0, 0, 0);
 235     int w = ::GetDeviceCaps((HDC) m_hDC, PHYSICALWIDTH);
 236     int h = ::GetDeviceCaps((HDC) m_hDC, PHYSICALHEIGHT);
 237     int x = -::GetDeviceCaps((HDC) m_hDC, PHYSICALOFFSETX);
 238     int y = -::GetDeviceCaps((HDC) m_hDC, PHYSICALOFFSETY);
 239     return wxRect(x, y, w, h);
 240 }
 241
 242
 243 #if !wxUSE_PS_PRINTING
 244
 245 // Returns default device and port names
 246 static bool wxGetDefaultDeviceName(wxString& deviceName, wxString& portName)
 247 {
 248     deviceName.clear();
 249
 250     LPDEVNAMES  lpDevNames;
 251     LPTSTR      lpszDeviceName;
 252     LPTSTR      lpszPortName;
 253
 254     PRINTDLG    pd;
 255
 256     // Cygwin has trouble believing PRINTDLG is 66 bytes - thinks it is 68
 257 #ifdef __GNUWIN32__
 258     memset(&pd, 0, 66);
 259     pd.lStructSize    = 66; // sizeof(PRINTDLG);
 260 #else
 261     memset(&pd, 0, sizeof(PRINTDLG));
 262     pd.lStructSize    = sizeof(PRINTDLG);
 263 #endif
 264
 265     pd.hwndOwner      = (HWND)NULL;
 266     pd.hDevMode       = NULL; // Will be created by PrintDlg
 267     pd.hDevNames      = NULL; // Ditto
 268     pd.Flags          = PD_RETURNDEFAULT;
 269     pd.nCopies        = 1;
 270
 271     if (!PrintDlg((LPPRINTDLG)&pd))
 272     {
 273         if ( pd.hDevMode )
 274             GlobalFree(pd.hDevMode);
 275         if (pd.hDevNames)
 276             GlobalFree(pd.hDevNames);
 277
 278         return false;
 279     }
 280
 281     if (pd.hDevNames)
 282     {
 283         lpDevNames = (LPDEVNAMES)GlobalLock(pd.hDevNames);
 284         lpszDeviceName = (LPTSTR)lpDevNames + lpDevNames->wDeviceOffset;
 285         lpszPortName   = (LPTSTR)lpDevNames + lpDevNames->wOutputOffset;
 286
 287         deviceName = lpszDeviceName;
 288         portName = lpszPortName;
 289
 290         GlobalUnlock(pd.hDevNames);
 291         GlobalFree(pd.hDevNames);
 292         pd.hDevNames=NULL;
 293     }
 294
 295     if (pd.hDevMode)
 296     {
 297         GlobalFree(pd.hDevMode);
 298         pd.hDevMode=NULL;
 299     }
 300     return ( !deviceName.empty() );
 301 }
 302
 303 #endif // !wxUSE_PS_PRINTING
 304
 305 // Gets an HDC for the specified printer configuration
 306 WXHDC WXDLLEXPORT wxGetPrinterDC(const wxPrintData& printDataConst)
 307 {
 308 #if wxUSE_PS_PRINTING
 309     // TODO
 310     wxUnusedVar(printDataConst);
 311     return 0;
 312 #else // native Windows printing
 313     wxWindowsPrintNativeData *data =
 314         (wxWindowsPrintNativeData *) printDataConst.GetNativeData();
 315
 316     data->TransferFrom( printDataConst );
 317
 318     wxString deviceName = printDataConst.GetPrinterName();
 319     if ( deviceName.empty() )
 320     {
 321         // Retrieve the default device name
 322         wxString portName;
 323         if ( !wxGetDefaultDeviceName(deviceName, portName) )
 324         {
 325             return 0; // Could not get default device name
 326         }
 327     }
 328
 329
 330     GlobalPtrLock lockDevMode;
 331     const HGLOBAL devMode = data->GetDevMode();
 332     if ( devMode )
 333         lockDevMode.Init(devMode);
 334
 335     HDC hDC = ::CreateDC
 336                 (
 337                     NULL,               // no driver name as we use device name
 338                     deviceName.wx_str(),
 339                     NULL,               // unused
 340                     static_cast<DEVMODE *>(lockDevMode.Get())
 341                 );
 342     if ( !hDC )
 343         wxLogLastError(_T("CreateDC(printer)"));
 344
 345     return (WXHDC) hDC;
 346 #endif // PostScript/Windows printing
 347 }
 348
 349 // ----------------------------------------------------------------------------
 350 // wxPrinterDCImpl bit blitting/bitmap drawing
 351 // ----------------------------------------------------------------------------
 352
 353 // helper of DoDrawBitmap() and DoBlit()
 354 static
 355 bool DrawBitmapUsingStretchDIBits(HDC hdc,
 356                                   const wxBitmap& bmp,
 357                                   wxCoord x, wxCoord y)
 358 {
 359 #if wxUSE_WXDIB
 360     wxDIB dib(bmp);
 361     bool ok = dib.IsOk();
 362     if ( !ok )
 363         return false;
 364
 365     DIBSECTION ds;
 366     if ( !::GetObject(dib.GetHandle(), sizeof(ds), &ds) )
 367     {
 368         wxLogLastError(_T("GetObject(DIBSECTION)"));
 369
 370         return false;
 371     }
 372
 373     // ok, we've got all data we need, do blit it
 374     if ( ::StretchDIBits
 375             (
 376                 hdc,
 377                 x, y,
 378                 ds.dsBmih.biWidth, ds.dsBmih.biHeight,
 379                 0, 0,
 380                 ds.dsBmih.biWidth, ds.dsBmih.biHeight,
 381                 ds.dsBm.bmBits,
 382                 (LPBITMAPINFO)&ds.dsBmih,
 383                 DIB_RGB_COLORS,
 384                 SRCCOPY
 385             ) == GDI_ERROR )
 386     {
 387         wxLogLastError(wxT("StretchDIBits"));
 388
 389         return false;
 390     }
 391
 392     return true;
 393 #else
 394     return false;
 395 #endif
 396 }
 397
 398 void wxPrinterDCImpl::DoDrawBitmap(const wxBitmap& bmp,
 399                                wxCoord x, wxCoord y,
 400                                bool useMask)
 401 {
 402     wxCHECK_RET( bmp.Ok(), _T("invalid bitmap in wxPrinterDC::DrawBitmap") );
 403
 404     int width = bmp.GetWidth(),
 405         height = bmp.GetHeight();
 406
 407     if ( !(::GetDeviceCaps(GetHdc(), RASTERCAPS) & RC_STRETCHDIB) ||
 408             !DrawBitmapUsingStretchDIBits(GetHdc(), bmp, x, y) )
 409     {
 410         // no support for StretchDIBits() or an error occurred if we got here
 411         wxMemoryDC memDC;
 412
 413         memDC.SelectObjectAsSource(bmp);
 414
 415         GetOwner()->Blit(x, y, width, height, &memDC, 0, 0, wxCOPY, useMask);
 416
 417         memDC.SelectObject(wxNullBitmap);
 418     }
 419 }
 420
 421 bool wxPrinterDCImpl::DoBlit(wxCoord xdest, wxCoord ydest,
 422                          wxCoord width, wxCoord height,
 423                          wxDC *source,
 424                          wxCoord WXUNUSED(xsrc), wxCoord WXUNUSED(ysrc),
 425                          wxRasterOperationMode WXUNUSED(rop), bool useMask,
 426                          wxCoord WXUNUSED(xsrcMask), wxCoord WXUNUSED(ysrcMask))
 427 {
 428     wxDCImpl *impl = source->GetImpl();
 429     wxMSWDCImpl *msw_impl = wxDynamicCast(impl, wxMSWDCImpl);
 430     if (!msw_impl)
 431         return false;
 432
 433     wxBitmap& bmp = msw_impl->GetSelectedBitmap();
 434     wxMask *mask = useMask ? bmp.GetMask() : NULL;
 435     if ( mask )
 436     {
 437         // If we are printing source colours are screen colours not printer
 438         // colours and so we need copy the bitmap pixel by pixel.
 439         RECT rect;
 440         HDC dcSrc = GetHdcOf(*msw_impl);
 441         MemoryHDC dcMask(dcSrc);
 442         SelectInHDC selectMask(dcMask, (HBITMAP)mask->GetMaskBitmap());
 443
 444         for (int x = 0; x < width; x++)
 445         {
 446             for (int y = 0; y < height; y++)
 447             {
 448                 COLORREF cref = ::GetPixel(dcMask, x, y);
 449                 if (cref)
 450                 {
 451                     HBRUSH brush = ::CreateSolidBrush(::GetPixel(dcSrc, x, y));
 452                     rect.left = xdest + x;
 453                     rect.right = rect.left + 1;
 454                     rect.top = ydest + y;
 455                     rect.bottom = rect.top + 1;
 456                     ::FillRect(GetHdc(), &rect, brush);
 457                     ::DeleteObject(brush);
 458                 }
 459             }
 460         }
 461     }
 462     else // no mask
 463     {
 464         if ( !(::GetDeviceCaps(GetHdc(), RASTERCAPS) & RC_STRETCHDIB) ||
 465                 !DrawBitmapUsingStretchDIBits(GetHdc(), bmp, xdest, ydest) )
 466         {
 467             // no support for StretchDIBits
 468
 469             // as we are printing, source colours are screen colours not
 470             // printer colours and so we need copy the bitmap pixel by pixel.
 471             HDC dcSrc = GetHdcOf(*msw_impl);
 472             RECT rect;
 473             for (int y = 0; y < height; y++)
 474             {
 475                 // optimization: draw identical adjacent pixels together.
 476                 for (int x = 0; x < width; x++)
 477                 {
 478                     COLORREF col = ::GetPixel(dcSrc, x, y);
 479                     HBRUSH brush = ::CreateSolidBrush( col );
 480
 481                     rect.left = xdest + x;
 482                     rect.top = ydest + y;
 483                     while( (x + 1 < width) &&
 484                                 (::GetPixel(dcSrc, x + 1, y) == col ) )
 485                     {
 486                         ++x;
 487                     }
 488                     rect.right = xdest + x + 1;
 489                     rect.bottom = rect.top + 1;
 490                     ::FillRect((HDC) m_hDC, &rect, brush);
 491                     ::DeleteObject(brush);
 492                 }
 493             }
 494         }
 495     }
 496
 497     return true;
 498 }
 499
 500 #endif
 501     // wxUSE_PRINTING_ARCHITECTURE