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: %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