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 #ifndef WX_PRECOMP
  28     #include "wx/string.h"
  29     #include "wx/log.h"
  30     #include "wx/window.h"
  31     #include "wx/dcmemory.h"
  32 #endif
  33
  34 #if wxUSE_PRINTING_ARCHITECTURE
  35
  36 #include "wx/msw/private.h"
  37
  38 #if wxUSE_WXDIB
  39 #include "wx/msw/dib.h"
  40 #endif
  41
  42 #include "wx/dcprint.h"
  43 #include "wx/printdlg.h"
  44 #include "wx/msw/printdlg.h"
  45 #include "wx/math.h"
  46
  47 #include "wx/msw/wrapcdlg.h"
  48 #ifndef __WIN32__
  49     #include <print.h>
  50 #endif
  51
  52 // mingw32 defines GDI_ERROR incorrectly
  53 #if defined(__GNUWIN32__) || !defined(GDI_ERROR)
  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.empty())
 179         docinfo.lpszOutput = NULL;
 180     else
 181         docinfo.lpszOutput = (const wxChar *) filename;
 182
 183     docinfo.lpszDatatype = NULL;
 184     docinfo.fwType = 0;
 185
 186     if (!m_hDC)
 187         return false;
 188
 189     int ret = ::StartDoc(GetHdc(), &docinfo);
 190
 191     if (ret <= 0)
 192     {
 193         DWORD lastError = GetLastError();
 194         wxLogDebug(wxT("wxDC::StartDoc failed with error: %ld\n"), lastError);
 195     }
 196
 197     return (ret > 0);
 198 }
 199
 200 void wxPrinterDC::EndDoc()
 201 {
 202     if (m_hDC) ::EndDoc((HDC) m_hDC);
 203 }
 204
 205 void wxPrinterDC::StartPage()
 206 {
 207     if (m_hDC)
 208         ::StartPage((HDC) m_hDC);
 209 }
 210
 211 void wxPrinterDC::EndPage()
 212 {
 213     if (m_hDC)
 214         ::EndPage((HDC) m_hDC);
 215 }
 216
 217 // Returns default device and port names
 218 static bool wxGetDefaultDeviceName(wxString& deviceName, wxString& portName)
 219 {
 220     deviceName.clear();
 221
 222     LPDEVNAMES  lpDevNames;
 223     LPTSTR      lpszDeviceName;
 224     LPTSTR      lpszPortName;
 225
 226     PRINTDLG    pd;
 227
 228     // Cygwin has trouble believing PRINTDLG is 66 bytes - thinks it is 68
 229 #ifdef __GNUWIN32__
 230     memset(&pd, 0, 66);
 231     pd.lStructSize    = 66; // sizeof(PRINTDLG);
 232 #else
 233     memset(&pd, 0, sizeof(PRINTDLG));
 234     pd.lStructSize    = sizeof(PRINTDLG);
 235 #endif
 236
 237     pd.hwndOwner      = (HWND)NULL;
 238     pd.hDevMode       = NULL; // Will be created by PrintDlg
 239     pd.hDevNames      = NULL; // Ditto
 240     pd.Flags          = PD_RETURNDEFAULT;
 241     pd.nCopies        = 1;
 242
 243     if (!PrintDlg((LPPRINTDLG)&pd))
 244     {
 245         if ( pd.hDevMode )
 246             GlobalFree(pd.hDevMode);
 247         if (pd.hDevNames)
 248             GlobalFree(pd.hDevNames);
 249
 250         return false;
 251     }
 252
 253     if (pd.hDevNames)
 254     {
 255         lpDevNames = (LPDEVNAMES)GlobalLock(pd.hDevNames);
 256         lpszDeviceName = (LPTSTR)lpDevNames + lpDevNames->wDeviceOffset;
 257         lpszPortName   = (LPTSTR)lpDevNames + lpDevNames->wOutputOffset;
 258
 259         deviceName = lpszDeviceName;
 260         portName = lpszPortName;
 261
 262         GlobalUnlock(pd.hDevNames);
 263         GlobalFree(pd.hDevNames);
 264         pd.hDevNames=NULL;
 265     }
 266
 267     if (pd.hDevMode)
 268     {
 269         GlobalFree(pd.hDevMode);
 270         pd.hDevMode=NULL;
 271     }
 272     return ( !deviceName.empty() );
 273 }
 274
 275 // Gets an HDC for the specified printer configuration
 276 WXHDC WXDLLEXPORT wxGetPrinterDC(const wxPrintData& printDataConst)
 277 {
 278 #if defined(__WXUNIVERSAL__) && (!defined(__WXMSW__) || wxUSE_POSTSCRIPT_ARCHITECTURE_IN_MSW)
 279
 280 #if 0
 281     wxPostScriptPrintNativeData *data =
 282         (wxPostScriptPrintNativeData *) printDataConst.GetNativeData();
 283     // FIXME: how further ???
 284 #else
 285     return 0;
 286 #endif
 287
 288 #else // Postscript vs. native Windows
 289
 290     wxWindowsPrintNativeData *data =
 291         (wxWindowsPrintNativeData *) printDataConst.GetNativeData();
 292
 293     data->TransferFrom( printDataConst );
 294
 295     wxChar* driverName = (wxChar*) NULL;
 296
 297     wxString devNameStr = printDataConst.GetPrinterName();
 298     wxChar* portName = (wxChar*) NULL; // Obsolete in WIN32
 299
 300     const wxChar* deviceName;
 301     if ( !devNameStr )
 302         deviceName = (wxChar*) NULL;
 303     else
 304         deviceName = devNameStr.c_str();
 305
 306     LPDEVMODE lpDevMode = (LPDEVMODE) NULL;
 307
 308     HGLOBAL hDevMode = (HGLOBAL)(DWORD) data->GetDevMode();
 309
 310     if ( hDevMode )
 311         lpDevMode = (DEVMODE*) GlobalLock(hDevMode);
 312
 313     if ( !devNameStr )
 314     {
 315         // Retrieve the default device name
 316         wxString portName;
 317         if ( !wxGetDefaultDeviceName(devNameStr, portName) )
 318         {
 319             return 0; // Could not get default device name
 320         }
 321         deviceName = devNameStr.c_str();
 322     }
 323
 324 #ifdef __WIN32__
 325     HDC hDC = CreateDC(driverName, deviceName, portName, (DEVMODE *) lpDevMode);
 326 #else
 327     HDC hDC = CreateDC(driverName, deviceName, portName, (LPSTR) lpDevMode);
 328 #endif
 329
 330     if (hDevMode && lpDevMode)
 331         GlobalUnlock(hDevMode);
 332
 333     return (WXHDC) hDC;
 334 #endif
 335 }
 336
 337 // ----------------------------------------------------------------------------
 338 // wxPrinterDC bit blitting/bitmap drawing
 339 // ----------------------------------------------------------------------------
 340
 341 // helper of DoDrawBitmap() and DoBlit()
 342 static
 343 bool DrawBitmapUsingStretchDIBits(HDC hdc,
 344                                   const wxBitmap& bmp,
 345                                   wxCoord x, wxCoord y)
 346 {
 347 #if wxUSE_WXDIB
 348     wxDIB dib(bmp);
 349     bool ok = dib.IsOk();
 350     if ( !ok )
 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 occurred 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 WXUNUSED(xsrc), wxCoord WXUNUSED(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