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 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: %ld\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     LPTSTR      lpszDriverName;
 228     LPTSTR      lpszDeviceName;
 229     LPTSTR      lpszPortName;
 230
 231     PRINTDLG    pd;
 232
 233     // Cygwin has trouble believing PRINTDLG is 66 bytes - thinks it is 68
 234 #ifdef __GNUWIN32__
 235     memset(&pd, 0, 66);
 236     pd.lStructSize    = 66; // sizeof(PRINTDLG);
 237 #else
 238     memset(&pd, 0, sizeof(PRINTDLG));
 239     pd.lStructSize    = sizeof(PRINTDLG);
 240 #endif
 241
 242     pd.hwndOwner      = (HWND)NULL;
 243     pd.hDevMode       = NULL; // Will be created by PrintDlg
 244     pd.hDevNames      = NULL; // Ditto
 245     pd.Flags          = PD_RETURNDEFAULT;
 246     pd.nCopies        = 1;
 247
 248     if (!PrintDlg((LPPRINTDLG)&pd))
 249     {
 250         if ( pd.hDevMode )
 251             GlobalFree(pd.hDevMode);
 252         if (pd.hDevNames)
 253             GlobalFree(pd.hDevNames);
 254
 255         return FALSE;
 256     }
 257
 258     if (pd.hDevNames)
 259     {
 260         lpDevNames = (LPDEVNAMES)GlobalLock(pd.hDevNames);
 261         lpszDriverName = (LPTSTR)lpDevNames + lpDevNames->wDriverOffset;
 262         lpszDeviceName = (LPTSTR)lpDevNames + lpDevNames->wDeviceOffset;
 263         lpszPortName   = (LPTSTR)lpDevNames + lpDevNames->wOutputOffset;
 264
 265         deviceName = lpszDeviceName;
 266         portName = lpszPortName;
 267
 268         GlobalUnlock(pd.hDevNames);
 269         GlobalFree(pd.hDevNames);
 270         pd.hDevNames=NULL;
 271     }
 272
 273     if (pd.hDevMode)
 274     {
 275         GlobalFree(pd.hDevMode);
 276         pd.hDevMode=NULL;
 277     }
 278     return ( deviceName != wxT("") );
 279 }
 280
 281 #if 0
 282 // This uses defaults, except for orientation, so we should eliminate this function
 283 // and use the 2nd form (passing wxPrintData) instead.
 284 WXHDC wxGetPrinterDC(int orientation)
 285 {
 286     HDC         hDC;
 287     LPDEVMODE   lpDevMode = NULL;
 288     LPDEVNAMES  lpDevNames;
 289     LPSTR       lpszDriverName;
 290     LPSTR       lpszDeviceName;
 291     LPSTR       lpszPortName;
 292
 293     PRINTDLG    pd;
 294     // __GNUWIN32__ has trouble believing PRINTDLG is 66 bytes - thinks it is 68
 295 #ifdef __GNUWIN32__
 296     pd.lStructSize    = 66; // sizeof(PRINTDLG);
 297 #else
 298     pd.lStructSize    = sizeof(PRINTDLG);
 299 #endif
 300     pd.hwndOwner      = (HWND)NULL;
 301     pd.hDevMode       = NULL; // Will be created by PrintDlg
 302     pd.hDevNames      = NULL; // Ditto
 303     pd.Flags          = PD_RETURNDEFAULT;
 304     pd.nCopies        = 1;
 305
 306     if (!PrintDlg((LPPRINTDLG)&pd))
 307     {
 308         if ( pd.hDevMode )
 309             GlobalFree(pd.hDevMode);
 310         if (pd.hDevNames)
 311             GlobalFree(pd.hDevNames);
 312
 313         return(0);
 314     }
 315
 316     if (!pd.hDevNames)
 317     {
 318         if ( pd.hDevMode )
 319             GlobalFree(pd.hDevMode);
 320     }
 321
 322     lpDevNames = (LPDEVNAMES)GlobalLock(pd.hDevNames);
 323     lpszDriverName = (LPSTR)lpDevNames + lpDevNames->wDriverOffset;
 324     lpszDeviceName = (LPSTR)lpDevNames + lpDevNames->wDeviceOffset;
 325     lpszPortName   = (LPSTR)lpDevNames + lpDevNames->wOutputOffset;
 326     GlobalUnlock(pd.hDevNames);
 327
 328     if ( pd.hDevMode )
 329     {
 330         lpDevMode = (DEVMODE*) GlobalLock(pd.hDevMode);
 331         lpDevMode->dmOrientation = orientation;
 332         lpDevMode->dmFields |= DM_ORIENTATION;
 333     }
 334
 335 #ifdef __WIN32__
 336     hDC = CreateDC(lpszDriverName, lpszDeviceName, lpszPortName, (DEVMODE *)lpDevMode);
 337 #else
 338     hDC = CreateDC(lpszDriverName, lpszDeviceName, lpszPortName, (LPSTR)lpDevMode);
 339 #endif
 340
 341     if (pd.hDevMode && lpDevMode)
 342         GlobalUnlock(pd.hDevMode);
 343
 344     if (pd.hDevNames)
 345     {
 346         GlobalFree(pd.hDevNames);
 347         pd.hDevNames=NULL;
 348     }
 349     if (pd.hDevMode)
 350     {
 351         GlobalFree(pd.hDevMode);
 352         pd.hDevMode=NULL;
 353     }
 354     return (WXHDC) hDC;
 355 }
 356 #endif // 0
 357
 358 // Gets an HDC for the specified printer configuration
 359 WXHDC WXDLLEXPORT wxGetPrinterDC(const wxPrintData& printDataConst)
 360 {
 361     wxPrintData printData = printDataConst;
 362     printData.ConvertToNative();
 363
 364     wxChar* driverName = (wxChar*) NULL;
 365
 366     wxString devNameStr = printData.GetPrinterName();
 367     wxChar* portName = (wxChar*) NULL; // Obsolete in WIN32
 368
 369     const wxChar* deviceName;
 370     if ( !devNameStr )
 371         deviceName = (wxChar*) NULL;
 372     else
 373         deviceName = devNameStr.c_str();
 374
 375     LPDEVMODE lpDevMode = (LPDEVMODE) NULL;
 376
 377     HGLOBAL hDevMode = (HGLOBAL)(DWORD) printData.GetNativeData();
 378
 379     if ( hDevMode )
 380         lpDevMode = (DEVMODE*) GlobalLock(hDevMode);
 381
 382     if ( !devNameStr )
 383     {
 384         // Retrieve the default device name
 385         wxString portName;
 386 #ifdef  __WXDEBUG__
 387         bool ret =
 388 #else   // !Debug
 389         (void)
 390 #endif // Debug/Release
 391         wxGetDefaultDeviceName(devNameStr, portName);
 392
 393         wxASSERT_MSG( ret, wxT("Could not get default device name.") );
 394
 395         deviceName = devNameStr.c_str();
 396     }
 397
 398 #ifdef __WIN32__
 399     HDC hDC = CreateDC(driverName, deviceName, portName, (DEVMODE *) lpDevMode);
 400 #else
 401     HDC hDC = CreateDC(driverName, deviceName, portName, (LPSTR) lpDevMode);
 402 #endif
 403
 404     if (hDevMode && lpDevMode)
 405         GlobalUnlock(hDevMode);
 406
 407     return (WXHDC) hDC;
 408 }
 409
 410 // ----------------------------------------------------------------------------
 411 // wxPrinterDC bit blitting/bitmap drawing
 412 // ----------------------------------------------------------------------------
 413
 414 // Win16 doesn't define GDI_ERROR.
 415 #ifndef GDI_ERROR
 416 #define GDI_ERROR -1
 417 #endif
 418
 419 void wxPrinterDC::DoDrawBitmap(const wxBitmap &bmp,
 420                                wxCoord x, wxCoord y,
 421                                bool useMask)
 422 {
 423     wxCHECK_RET( bmp.Ok(), _T("invalid bitmap in wxPrinterDC::DrawBitmap") );
 424
 425     int width = bmp.GetWidth(),
 426         height = bmp.GetHeight();
 427
 428     if ( ::GetDeviceCaps(GetHdc(), RASTERCAPS) & RC_STRETCHDIB )
 429     {
 430         BITMAPINFO *info = (BITMAPINFO *) malloc( sizeof( BITMAPINFOHEADER ) + 256 * sizeof(RGBQUAD ) );
 431         memset( info, 0, sizeof( BITMAPINFOHEADER ) );
 432
 433         int iBitsSize = ((width + 3 ) & ~3 ) * height;
 434
 435         void* bits = malloc( iBitsSize );
 436
 437         info->bmiHeader.biSize = sizeof( BITMAPINFOHEADER );
 438         info->bmiHeader.biWidth = width;
 439         info->bmiHeader.biHeight = height;
 440         info->bmiHeader.biPlanes = 1;
 441         info->bmiHeader.biBitCount = 8;
 442         info->bmiHeader.biCompression = BI_RGB;
 443
 444         ScreenHDC display;
 445         if ( GetDIBits(display, GetHbitmapOf(bmp), 0,
 446                        bmp.GetHeight(), bits, info,
 447                        DIB_RGB_COLORS) )
 448         {
 449             if ( ::StretchDIBits(GetHdc(), x, y,
 450                                  width, height,
 451                                  0 , 0, width, height,
 452                                  bits, info,
 453                                  DIB_RGB_COLORS, SRCCOPY) == GDI_ERROR )
 454             {
 455                 wxLogLastError(wxT("StretchDIBits"));
 456             }
 457         }
 458
 459         free(bits);
 460         free(info);
 461     }
 462     else // no support for StretchDIBits()
 463     {
 464         wxMemoryDC memDC;
 465         memDC.SelectObject(bmp);
 466
 467         Blit(x, y, width, height, &memDC, 0, 0, wxCOPY, useMask);
 468
 469         memDC.SelectObject(wxNullBitmap);
 470     }
 471 }
 472
 473 bool wxPrinterDC::DoBlit(wxCoord xdest, wxCoord ydest,
 474                          wxCoord width, wxCoord height,
 475                          wxDC *source,
 476                          wxCoord xsrc, wxCoord ysrc,
 477                          int WXUNUSED(rop), bool useMask,
 478                          wxCoord WXUNUSED(xsrcMask), wxCoord WXUNUSED(ysrcMask))
 479 {
 480     bool success = TRUE;
 481
 482     if ( useMask )
 483     {
 484         // If we are printing source colours are screen colours
 485         // not printer colours and so we need copy the bitmap
 486         // pixel by pixel.
 487         RECT rect;
 488         HDC dc_src = GetHdcOf(*source);
 489         HDC dc_mask = ::CreateCompatibleDC(dc_src);
 490
 491         ::SelectObject(dc_mask, (HBITMAP) source->GetSelectedBitmap().GetMask()->GetMaskBitmap());
 492         for (int x = 0; x < width; x++)
 493         {
 494             for (int y = 0; y < height; y++)
 495             {
 496                 COLORREF cref = ::GetPixel(dc_mask, x, y);
 497                 if (cref)
 498                 {
 499                     HBRUSH brush = ::CreateSolidBrush(::GetPixel(dc_src, x, y));
 500                     rect.left = xdest + x;
 501                     rect.right = rect.left + 1;
 502                     rect.top = ydest + y;
 503                     rect.bottom = rect.top + 1;
 504                     ::FillRect(GetHdc(), &rect, brush);
 505                     ::DeleteObject(brush);
 506                 }
 507             }
 508         }
 509         ::SelectObject(dc_mask, 0);
 510         ::DeleteDC(dc_mask);
 511     }
 512     else // no mask
 513     {
 514         if ( ::GetDeviceCaps(GetHdc(), RASTERCAPS) & RC_STRETCHDIB )
 515         {
 516             wxBitmap& bmp = source->GetSelectedBitmap();
 517             int width = bmp.GetWidth(),
 518                 height = bmp.GetHeight();
 519
 520             BITMAPINFO *info = (BITMAPINFO *) malloc( sizeof( BITMAPINFOHEADER ) + 256 * sizeof(RGBQUAD ) );
 521             int iBitsSize = ((width + 3 ) & ~3 ) * height;
 522
 523             void* bits = malloc( iBitsSize );
 524
 525             memset( info , 0 , sizeof( BITMAPINFOHEADER ) );
 526
 527             info->bmiHeader.biSize = sizeof( BITMAPINFOHEADER );
 528             info->bmiHeader.biWidth = width;
 529             info->bmiHeader.biHeight = height;
 530             info->bmiHeader.biPlanes = 1;
 531             info->bmiHeader.biBitCount = 8;
 532             info->bmiHeader.biCompression = BI_RGB;
 533
 534             ScreenHDC display;
 535             if ( !::GetDIBits(display, GetHbitmapOf(bmp), 0,
 536                               height, bits, info, DIB_RGB_COLORS) )
 537             {
 538                 wxLogLastError(wxT("GetDIBits"));
 539
 540                 success = FALSE;
 541             }
 542
 543             if ( success )
 544             {
 545                 success = ::StretchDIBits(GetHdc(), xdest, ydest,
 546                                           width, height,
 547                                           xsrc, ysrc,
 548                                           width, height,
 549                                           bits, info ,
 550                                           DIB_RGB_COLORS,
 551                                           SRCCOPY) != GDI_ERROR;
 552                 if ( !success )
 553                 {
 554                     wxLogLastError(wxT("StretchDIBits"));
 555                 }
 556             }
 557
 558             free(bits);
 559             free(info);
 560         }
 561         else // no support for StretchDIBits
 562         {
 563             // as we are printing, source colours are screen colours not printer
 564             // colours and so we need copy the bitmap pixel by pixel.
 565             HDC dc_src = GetHdcOf(*source);
 566             RECT rect;
 567             for (int y = 0; y < height; y++)
 568             {
 569                 // This is Stefan Csomor's optimisation, where identical adjacent
 570                 // pixels are drawn together.
 571                 for (int x = 0; x < width; x++)
 572                 {
 573                     COLORREF col = ::GetPixel(dc_src, x, y);
 574                     HBRUSH brush = ::CreateSolidBrush( col );
 575
 576                     rect.left = xdest + x;
 577                     rect.top = ydest + y;
 578                     while( (x + 1 < width) && (::GetPixel(dc_src, x + 1, y) == col ) )
 579                     {
 580                         ++x;
 581                     }
 582                     rect.right = xdest + x + 1;
 583                     rect.bottom = rect.top + 1;
 584                     ::FillRect((HDC) m_hDC, &rect, brush);
 585                     ::DeleteObject(brush);
 586                 }
 587             }
 588         }
 589     }
 590
 591     return success;
 592 }
 593
 594 #endif
 595     // wxUSE_PRINTING_ARCHITECTURE