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 #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
  42 #if wxUSE_WXDIB
  43 #include "wx/msw/dib.h"
  44 #endif
  45
  46 #include "wx/dcprint.h"
  47 #include "math.h"
  48
  49 #if wxUSE_COMMON_DIALOGS
  50     #include <commdlg.h>
  51 #endif
  52
  53 #ifndef __WIN32__
  54     #include <print.h>
  55 #endif
  56
  57 // mingw32 defines GDI_ERROR incorrectly
  58 #if defined(__GNUWIN32__) || !defined(GDI_ERROR)
  59     #undef GDI_ERROR
  60     #define GDI_ERROR ((int)-1)
  61 #endif
  62
  63 // ----------------------------------------------------------------------------
  64 // wxWin macros
  65 // ----------------------------------------------------------------------------
  66
  67 IMPLEMENT_CLASS(wxPrinterDC, wxDC)
  68
  69 // ============================================================================
  70 // implementation
  71 // ============================================================================
  72
  73 // ----------------------------------------------------------------------------
  74 // wxPrinterDC construction
  75 // ----------------------------------------------------------------------------
  76
  77 // This form is deprecated
  78 wxPrinterDC::wxPrinterDC(const wxString& driver_name,
  79                          const wxString& device_name,
  80                          const wxString& file,
  81                          bool interactive,
  82                          int orientation)
  83 {
  84     m_isInteractive = interactive;
  85
  86     if ( !file.empty() )
  87         m_printData.SetFilename(file);
  88
  89 #if wxUSE_COMMON_DIALOGS
  90     if ( interactive )
  91     {
  92         PRINTDLG pd;
  93
  94         pd.lStructSize = sizeof( PRINTDLG );
  95         pd.hwndOwner = (HWND) NULL;
  96         pd.hDevMode = (HANDLE)NULL;
  97         pd.hDevNames = (HANDLE)NULL;
  98         pd.Flags = PD_RETURNDC | PD_NOSELECTION | PD_NOPAGENUMS;
  99         pd.nFromPage = 0;
 100         pd.nToPage = 0;
 101         pd.nMinPage = 0;
 102         pd.nMaxPage = 0;
 103         pd.nCopies = 1;
 104         pd.hInstance = (HINSTANCE)NULL;
 105
 106         m_ok = PrintDlg( &pd ) != 0;
 107         if ( m_ok )
 108         {
 109             m_hDC = (WXHDC) pd.hDC;
 110         }
 111     }
 112     else
 113 #endif // wxUSE_COMMON_DIALOGS
 114     {
 115         if ( !driver_name.empty() && !device_name.empty() && !file.empty() )
 116         {
 117             m_hDC = (WXHDC) CreateDC(driver_name, device_name, file, NULL);
 118         }
 119         else // we don't have all parameters, ask the user
 120         {
 121             wxPrintData printData;
 122             printData.SetOrientation(orientation);
 123             m_hDC = wxGetPrinterDC(printData);
 124         }
 125
 126         m_ok = m_hDC ? TRUE: FALSE;
 127
 128         // as we created it, we must delete it as well
 129         m_bOwnsDC = TRUE;
 130     }
 131
 132     Init();
 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     m_bOwnsDC = TRUE;
 144
 145     Init();
 146 }
 147
 148
 149 wxPrinterDC::wxPrinterDC(WXHDC dc)
 150 {
 151     m_isInteractive = FALSE;
 152
 153     m_hDC = dc;
 154     m_bOwnsDC = TRUE;
 155     m_ok = TRUE;
 156 }
 157
 158 void wxPrinterDC::Init()
 159 {
 160     if ( m_hDC )
 161     {
 162         //     int width = GetDeviceCaps(m_hDC, VERTRES);
 163         //     int height = GetDeviceCaps(m_hDC, HORZRES);
 164         SetMapMode(wxMM_TEXT);
 165
 166         SetBrush(*wxBLACK_BRUSH);
 167         SetPen(*wxBLACK_PEN);
 168     }
 169 }
 170
 171 // ----------------------------------------------------------------------------
 172 // wxPrinterDC {Start/End}{Page/Doc} methods
 173 // ----------------------------------------------------------------------------
 174
 175 bool wxPrinterDC::StartDoc(const wxString& message)
 176 {
 177     DOCINFO docinfo;
 178     docinfo.cbSize = sizeof(DOCINFO);
 179     docinfo.lpszDocName = (const wxChar*)message;
 180
 181     wxString filename(m_printData.GetFilename());
 182
 183     if (filename.IsEmpty())
 184         docinfo.lpszOutput = NULL;
 185     else
 186         docinfo.lpszOutput = (const wxChar *) filename;
 187
 188 #if defined(__WIN95__)
 189     docinfo.lpszDatatype = NULL;
 190     docinfo.fwType = 0;
 191 #endif
 192
 193     if (!m_hDC)
 194         return FALSE;
 195
 196     int ret = ::StartDoc(GetHdc(), &docinfo);
 197
 198 #ifndef __WIN16__
 199     if (ret <= 0)
 200     {
 201         DWORD lastError = GetLastError();
 202         wxLogDebug(wxT("wxDC::StartDoc failed with error: %ld\n"), lastError);
 203     }
 204 #endif
 205
 206     return (ret > 0);
 207 }
 208
 209 void wxPrinterDC::EndDoc()
 210 {
 211     if (m_hDC) ::EndDoc((HDC) m_hDC);
 212 }
 213
 214 void wxPrinterDC::StartPage()
 215 {
 216     if (m_hDC)
 217         ::StartPage((HDC) m_hDC);
 218 }
 219
 220 void wxPrinterDC::EndPage()
 221 {
 222     if (m_hDC)
 223         ::EndPage((HDC) m_hDC);
 224 }
 225
 226 // Returns default device and port names
 227 static bool wxGetDefaultDeviceName(wxString& deviceName, wxString& portName)
 228 {
 229     deviceName.clear();
 230
 231     LPDEVNAMES  lpDevNames;
 232     LPTSTR      lpszDriverName;
 233     LPTSTR      lpszDeviceName;
 234     LPTSTR      lpszPortName;
 235
 236     PRINTDLG    pd;
 237
 238     // Cygwin has trouble believing PRINTDLG is 66 bytes - thinks it is 68
 239 #ifdef __GNUWIN32__
 240     memset(&pd, 0, 66);
 241     pd.lStructSize    = 66; // sizeof(PRINTDLG);
 242 #else
 243     memset(&pd, 0, sizeof(PRINTDLG));
 244     pd.lStructSize    = sizeof(PRINTDLG);
 245 #endif
 246
 247     pd.hwndOwner      = (HWND)NULL;
 248     pd.hDevMode       = NULL; // Will be created by PrintDlg
 249     pd.hDevNames      = NULL; // Ditto
 250     pd.Flags          = PD_RETURNDEFAULT;
 251     pd.nCopies        = 1;
 252
 253     if (!PrintDlg((LPPRINTDLG)&pd))
 254     {
 255         if ( pd.hDevMode )
 256             GlobalFree(pd.hDevMode);
 257         if (pd.hDevNames)
 258             GlobalFree(pd.hDevNames);
 259
 260         return FALSE;
 261     }
 262
 263     if (pd.hDevNames)
 264     {
 265         lpDevNames = (LPDEVNAMES)GlobalLock(pd.hDevNames);
 266         lpszDriverName = (LPTSTR)lpDevNames + lpDevNames->wDriverOffset;
 267         lpszDeviceName = (LPTSTR)lpDevNames + lpDevNames->wDeviceOffset;
 268         lpszPortName   = (LPTSTR)lpDevNames + lpDevNames->wOutputOffset;
 269
 270         deviceName = lpszDeviceName;
 271         portName = lpszPortName;
 272
 273         GlobalUnlock(pd.hDevNames);
 274         GlobalFree(pd.hDevNames);
 275         pd.hDevNames=NULL;
 276     }
 277
 278     if (pd.hDevMode)
 279     {
 280         GlobalFree(pd.hDevMode);
 281         pd.hDevMode=NULL;
 282     }
 283     return ( deviceName != wxEmptyString );
 284 }
 285
 286 // Gets an HDC for the specified printer configuration
 287 WXHDC WXDLLEXPORT wxGetPrinterDC(const wxPrintData& printDataConst)
 288 {
 289     wxPrintData printData = printDataConst;
 290     printData.ConvertToNative();
 291
 292     wxChar* driverName = (wxChar*) NULL;
 293
 294     wxString devNameStr = printData.GetPrinterName();
 295     wxChar* portName = (wxChar*) NULL; // Obsolete in WIN32
 296
 297     const wxChar* deviceName;
 298     if ( !devNameStr )
 299         deviceName = (wxChar*) NULL;
 300     else
 301         deviceName = devNameStr.c_str();
 302
 303     LPDEVMODE lpDevMode = (LPDEVMODE) NULL;
 304
 305     HGLOBAL hDevMode = (HGLOBAL)(DWORD) printData.GetNativeData();
 306
 307     if ( hDevMode )
 308         lpDevMode = (DEVMODE*) GlobalLock(hDevMode);
 309
 310     if ( !devNameStr )
 311     {
 312         // Retrieve the default device name
 313         wxString portName;
 314 #ifdef  __WXDEBUG__
 315         bool ret =
 316 #else   // !Debug
 317         (void)
 318 #endif // Debug/Release
 319         wxGetDefaultDeviceName(devNameStr, portName);
 320
 321         wxASSERT_MSG( ret, wxT("Could not get default device name.") );
 322
 323         deviceName = devNameStr.c_str();
 324     }
 325
 326 #ifdef __WIN32__
 327     HDC hDC = CreateDC(driverName, deviceName, portName, (DEVMODE *) lpDevMode);
 328 #else
 329     HDC hDC = CreateDC(driverName, deviceName, portName, (LPSTR) lpDevMode);
 330 #endif
 331
 332     if (hDevMode && lpDevMode)
 333         GlobalUnlock(hDevMode);
 334
 335     return (WXHDC) hDC;
 336 }
 337
 338 // ----------------------------------------------------------------------------
 339 // wxPrinterDC bit blitting/bitmap drawing
 340 // ----------------------------------------------------------------------------
 341
 342 // helper of DoDrawBitmap() and DoBlit()
 343 static
 344 bool DrawBitmapUsingStretchDIBits(HDC hdc,
 345                                   const wxBitmap& bmp,
 346                                   wxCoord x, wxCoord y)
 347 {
 348 #if wxUSE_WXDIB
 349     wxDIB dib(bmp);
 350     if ( !dib.IsOk() )
 351         return FALSE;
 352
 353     DIBSECTION ds;
 354     if ( !::GetObject(dib.GetHandle(), sizeof(ds), &ds) )
 355     {
 356         wxLogLastError(_T("GetObject(DIBSECTION)"));
 357
 358         return FALSE;
 359     }
 360
 361     // ok, we've got all data we need, do blit it
 362     if ( ::StretchDIBits
 363             (
 364                 hdc,
 365                 x, y,
 366                 ds.dsBmih.biWidth, ds.dsBmih.biHeight,
 367                 0, 0,
 368                 ds.dsBmih.biWidth, ds.dsBmih.biHeight,
 369                 ds.dsBm.bmBits,
 370                 (LPBITMAPINFO)&ds.dsBmih,
 371                 DIB_RGB_COLORS,
 372                 SRCCOPY
 373             ) == GDI_ERROR )
 374     {
 375         wxLogLastError(wxT("StretchDIBits"));
 376
 377         return FALSE;
 378     }
 379
 380     return TRUE;
 381 #else
 382     return FALSE;
 383 #endif
 384 }
 385
 386 void wxPrinterDC::DoDrawBitmap(const wxBitmap& bmp,
 387                                wxCoord x, wxCoord y,
 388                                bool useMask)
 389 {
 390     wxCHECK_RET( bmp.Ok(), _T("invalid bitmap in wxPrinterDC::DrawBitmap") );
 391
 392     int width = bmp.GetWidth(),
 393         height = bmp.GetHeight();
 394
 395     if ( !(::GetDeviceCaps(GetHdc(), RASTERCAPS) & RC_STRETCHDIB) ||
 396             !DrawBitmapUsingStretchDIBits(GetHdc(), bmp, x, y) )
 397     {
 398         // no support for StretchDIBits() or an error occured if we got here
 399         wxMemoryDC memDC;
 400         memDC.SelectObject(bmp);
 401
 402         Blit(x, y, width, height, &memDC, 0, 0, wxCOPY, useMask);
 403
 404         memDC.SelectObject(wxNullBitmap);
 405     }
 406 }
 407
 408 bool wxPrinterDC::DoBlit(wxCoord xdest, wxCoord ydest,
 409                          wxCoord width, wxCoord height,
 410                          wxDC *source,
 411                          wxCoord xsrc, wxCoord ysrc,
 412                          int WXUNUSED(rop), bool useMask,
 413                          wxCoord WXUNUSED(xsrcMask), wxCoord WXUNUSED(ysrcMask))
 414 {
 415     wxBitmap& bmp = source->GetSelectedBitmap();
 416     wxMask *mask = useMask ? bmp.GetMask() : NULL;
 417     if ( mask )
 418     {
 419         // If we are printing source colours are screen colours not printer
 420         // colours and so we need copy the bitmap pixel by pixel.
 421         RECT rect;
 422         HDC dcSrc = GetHdcOf(*source);
 423         MemoryHDC dcMask(dcSrc);
 424         SelectInHDC selectMask(dcMask, (HBITMAP)mask->GetMaskBitmap());
 425
 426         for (int x = 0; x < width; x++)
 427         {
 428             for (int y = 0; y < height; y++)
 429             {
 430                 COLORREF cref = ::GetPixel(dcMask, x, y);
 431                 if (cref)
 432                 {
 433                     HBRUSH brush = ::CreateSolidBrush(::GetPixel(dcSrc, x, y));
 434                     rect.left = xdest + x;
 435                     rect.right = rect.left + 1;
 436                     rect.top = ydest + y;
 437                     rect.bottom = rect.top + 1;
 438                     ::FillRect(GetHdc(), &rect, brush);
 439                     ::DeleteObject(brush);
 440                 }
 441             }
 442         }
 443     }
 444     else // no mask
 445     {
 446         if ( !(::GetDeviceCaps(GetHdc(), RASTERCAPS) & RC_STRETCHDIB) ||
 447                 !DrawBitmapUsingStretchDIBits(GetHdc(), bmp, xdest, ydest) )
 448         {
 449             // no support for StretchDIBits
 450
 451             // as we are printing, source colours are screen colours not
 452             // printer colours and so we need copy the bitmap pixel by pixel.
 453             HDC dcSrc = GetHdcOf(*source);
 454             RECT rect;
 455             for (int y = 0; y < height; y++)
 456             {
 457                 // optimization: draw identical adjacent pixels together.
 458                 for (int x = 0; x < width; x++)
 459                 {
 460                     COLORREF col = ::GetPixel(dcSrc, x, y);
 461                     HBRUSH brush = ::CreateSolidBrush( col );
 462
 463                     rect.left = xdest + x;
 464                     rect.top = ydest + y;
 465                     while( (x + 1 < width) &&
 466                                 (::GetPixel(dcSrc, x + 1, y) == col ) )
 467                     {
 468                         ++x;
 469                     }
 470                     rect.right = xdest + x + 1;
 471                     rect.bottom = rect.top + 1;
 472                     ::FillRect((HDC) m_hDC, &rect, brush);
 473                     ::DeleteObject(brush);
 474                 }
 475             }
 476         }
 477     }
 478
 479     return TRUE;
 480 }
 481
 482 #endif
 483     // wxUSE_PRINTING_ARCHITECTURE