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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  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 "wx/printdlg.h"
  48 #include "wx/msw/printdlg.h"
  49 #include "wx/math.h"
  50
  51 #if wxUSE_COMMON_DIALOGS
  52     #include <commdlg.h>
  53 #endif
  54
  55 #ifndef __WIN32__
  56     #include <print.h>
  57 #endif
  58
  59 // mingw32 defines GDI_ERROR incorrectly
  60 #if defined(__GNUWIN32__) || !defined(GDI_ERROR)
  61     #undef GDI_ERROR
  62     #define GDI_ERROR ((int)-1)
  63 #endif
  64
  65 // ----------------------------------------------------------------------------
  66 // wxWin macros
  67 // ----------------------------------------------------------------------------
  68
  69 IMPLEMENT_CLASS(wxPrinterDC, wxDC)
  70
  71 // ============================================================================
  72 // implementation
  73 // ============================================================================
  74
  75 // ----------------------------------------------------------------------------
  76 // wxPrinterDC construction
  77 // ----------------------------------------------------------------------------
  78
  79 // This form is deprecated
  80 wxPrinterDC::wxPrinterDC(const wxString& driver_name,
  81                          const wxString& device_name,
  82                          const wxString& file,
  83                          bool interactive,
  84                          int orientation)
  85 {
  86     m_isInteractive = interactive;
  87
  88     if ( !file.empty() )
  89         m_printData.SetFilename(file);
  90
  91 #if wxUSE_COMMON_DIALOGS
  92     if ( interactive )
  93     {
  94         PRINTDLG pd;
  95
  96         pd.lStructSize = sizeof( PRINTDLG );
  97         pd.hwndOwner = (HWND) NULL;
  98         pd.hDevMode = (HANDLE)NULL;
  99         pd.hDevNames = (HANDLE)NULL;
 100         pd.Flags = PD_RETURNDC | PD_NOSELECTION | PD_NOPAGENUMS;
 101         pd.nFromPage = 0;
 102         pd.nToPage = 0;
 103         pd.nMinPage = 0;
 104         pd.nMaxPage = 0;
 105         pd.nCopies = 1;
 106         pd.hInstance = (HINSTANCE)NULL;
 107
 108         m_ok = PrintDlg( &pd ) != 0;
 109         if ( m_ok )
 110         {
 111             m_hDC = (WXHDC) pd.hDC;
 112         }
 113     }
 114     else
 115 #endif // wxUSE_COMMON_DIALOGS
 116     {
 117         if ( !driver_name.empty() && !device_name.empty() && !file.empty() )
 118         {
 119             m_hDC = (WXHDC) CreateDC(driver_name, device_name, file, NULL);
 120         }
 121         else // we don't have all parameters, ask the user
 122         {
 123             wxPrintData printData;
 124             printData.SetOrientation(orientation);
 125             m_hDC = wxGetPrinterDC(printData);
 126         }
 127
 128         m_ok = m_hDC ? true: false;
 129
 130         // as we created it, we must delete it as well
 131         m_bOwnsDC = true;
 132     }
 133
 134     Init();
 135 }
 136
 137 wxPrinterDC::wxPrinterDC(const wxPrintData& printData)
 138 {
 139     m_printData = printData;
 140
 141     m_isInteractive = false;
 142
 143     m_hDC = wxGetPrinterDC(printData);
 144     m_ok = m_hDC != 0;
 145     m_bOwnsDC = true;
 146
 147     Init();
 148 }
 149
 150
 151 wxPrinterDC::wxPrinterDC(WXHDC dc)
 152 {
 153     m_isInteractive = false;
 154
 155     m_hDC = dc;
 156     m_bOwnsDC = true;
 157     m_ok = true;
 158 }
 159
 160 void wxPrinterDC::Init()
 161 {
 162     if ( m_hDC )
 163     {
 164         //     int width = GetDeviceCaps(m_hDC, VERTRES);
 165         //     int height = GetDeviceCaps(m_hDC, HORZRES);
 166         SetMapMode(wxMM_TEXT);
 167
 168         SetBrush(*wxBLACK_BRUSH);
 169         SetPen(*wxBLACK_PEN);
 170     }
 171 }
 172
 173 // ----------------------------------------------------------------------------
 174 // wxPrinterDC {Start/End}{Page/Doc} methods
 175 // ----------------------------------------------------------------------------
 176
 177 bool wxPrinterDC::StartDoc(const wxString& message)
 178 {
 179     DOCINFO docinfo;
 180     docinfo.cbSize = sizeof(DOCINFO);
 181     docinfo.lpszDocName = (const wxChar*)message;
 182
 183     wxString filename(m_printData.GetFilename());
 184
 185     if (filename.empty())
 186         docinfo.lpszOutput = NULL;
 187     else
 188         docinfo.lpszOutput = (const wxChar *) filename;
 189
 190 #if defined(__WIN95__)
 191     docinfo.lpszDatatype = NULL;
 192     docinfo.fwType = 0;
 193 #endif
 194
 195     if (!m_hDC)
 196         return false;
 197
 198     int ret = ::StartDoc(GetHdc(), &docinfo);
 199
 200     if (ret <= 0)
 201     {
 202         DWORD lastError = GetLastError();
 203         wxLogDebug(wxT("wxDC::StartDoc failed with error: %ld\n"), lastError);
 204     }
 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      lpszDeviceName;
 233     LPTSTR      lpszPortName;
 234
 235     PRINTDLG    pd;
 236
 237     // Cygwin has trouble believing PRINTDLG is 66 bytes - thinks it is 68
 238 #ifdef __GNUWIN32__
 239     memset(&pd, 0, 66);
 240     pd.lStructSize    = 66; // sizeof(PRINTDLG);
 241 #else
 242     memset(&pd, 0, sizeof(PRINTDLG));
 243     pd.lStructSize    = sizeof(PRINTDLG);
 244 #endif
 245
 246     pd.hwndOwner      = (HWND)NULL;
 247     pd.hDevMode       = NULL; // Will be created by PrintDlg
 248     pd.hDevNames      = NULL; // Ditto
 249     pd.Flags          = PD_RETURNDEFAULT;
 250     pd.nCopies        = 1;
 251
 252     if (!PrintDlg((LPPRINTDLG)&pd))
 253     {
 254         if ( pd.hDevMode )
 255             GlobalFree(pd.hDevMode);
 256         if (pd.hDevNames)
 257             GlobalFree(pd.hDevNames);
 258
 259         return false;
 260     }
 261
 262     if (pd.hDevNames)
 263     {
 264         lpDevNames = (LPDEVNAMES)GlobalLock(pd.hDevNames);
 265         lpszDeviceName = (LPTSTR)lpDevNames + lpDevNames->wDeviceOffset;
 266         lpszPortName   = (LPTSTR)lpDevNames + lpDevNames->wOutputOffset;
 267
 268         deviceName = lpszDeviceName;
 269         portName = lpszPortName;
 270
 271         GlobalUnlock(pd.hDevNames);
 272         GlobalFree(pd.hDevNames);
 273         pd.hDevNames=NULL;
 274     }
 275
 276     if (pd.hDevMode)
 277     {
 278         GlobalFree(pd.hDevMode);
 279         pd.hDevMode=NULL;
 280     }
 281     return ( deviceName != wxEmptyString );
 282 }
 283
 284 // Gets an HDC for the specified printer configuration
 285 WXHDC WXDLLEXPORT wxGetPrinterDC(const wxPrintData& printDataConst)
 286 {
 287 #if defined(__WXUNIVERSAL__) && (!defined(__WXMSW__) || wxUSE_POSTSCRIPT_ARCHITECTURE_IN_MSW)
 288
 289 #if 0
 290     wxPostScriptPrintNativeData *data =
 291         (wxPostScriptPrintNativeData *) printDataConst.GetNativeData();
 292     // FIXME: how further ???
 293 #else
 294     return 0;
 295 #endif
 296
 297 #else // Postscript vs. native Windows
 298
 299     wxWindowsPrintNativeData *data =
 300         (wxWindowsPrintNativeData *) printDataConst.GetNativeData();
 301
 302     data->TransferFrom( printDataConst );
 303
 304     wxChar* driverName = (wxChar*) NULL;
 305
 306     wxString devNameStr = printDataConst.GetPrinterName();
 307     wxChar* portName = (wxChar*) NULL; // Obsolete in WIN32
 308
 309     const wxChar* deviceName;
 310     if ( !devNameStr )
 311         deviceName = (wxChar*) NULL;
 312     else
 313         deviceName = devNameStr.c_str();
 314
 315     LPDEVMODE lpDevMode = (LPDEVMODE) NULL;
 316
 317     HGLOBAL hDevMode = (HGLOBAL)(DWORD) data->GetDevMode();
 318
 319     if ( hDevMode )
 320         lpDevMode = (DEVMODE*) GlobalLock(hDevMode);
 321
 322     if ( !devNameStr )
 323     {
 324         // Retrieve the default device name
 325         wxString portName;
 326         if ( !wxGetDefaultDeviceName(devNameStr, portName) )
 327         {
 328             return 0; // Could not get default device name
 329         }
 330         deviceName = devNameStr.c_str();
 331     }
 332
 333 #ifdef __WIN32__
 334     HDC hDC = CreateDC(driverName, deviceName, portName, (DEVMODE *) lpDevMode);
 335 #else
 336     HDC hDC = CreateDC(driverName, deviceName, portName, (LPSTR) lpDevMode);
 337 #endif
 338
 339     if (hDevMode && lpDevMode)
 340         GlobalUnlock(hDevMode);
 341
 342     return (WXHDC) hDC;
 343 #endif
 344 }
 345
 346 // ----------------------------------------------------------------------------
 347 // wxPrinterDC bit blitting/bitmap drawing
 348 // ----------------------------------------------------------------------------
 349
 350 // helper of DoDrawBitmap() and DoBlit()
 351 static
 352 bool DrawBitmapUsingStretchDIBits(HDC hdc,
 353                                   const wxBitmap& bmp,
 354                                   wxCoord x, wxCoord y)
 355 {
 356 #if wxUSE_WXDIB
 357     wxDIB dib(bmp);
 358     bool ok = dib.IsOk();
 359     if ( !ok )
 360         return false;
 361
 362     DIBSECTION ds;
 363     if ( !::GetObject(dib.GetHandle(), sizeof(ds), &ds) )
 364     {
 365         wxLogLastError(_T("GetObject(DIBSECTION)"));
 366
 367         return false;
 368     }
 369
 370     // ok, we've got all data we need, do blit it
 371     if ( ::StretchDIBits
 372             (
 373                 hdc,
 374                 x, y,
 375                 ds.dsBmih.biWidth, ds.dsBmih.biHeight,
 376                 0, 0,
 377                 ds.dsBmih.biWidth, ds.dsBmih.biHeight,
 378                 ds.dsBm.bmBits,
 379                 (LPBITMAPINFO)&ds.dsBmih,
 380                 DIB_RGB_COLORS,
 381                 SRCCOPY
 382             ) == GDI_ERROR )
 383     {
 384         wxLogLastError(wxT("StretchDIBits"));
 385
 386         return false;
 387     }
 388
 389     return true;
 390 #else
 391     return false;
 392 #endif
 393 }
 394
 395 void wxPrinterDC::DoDrawBitmap(const wxBitmap& bmp,
 396                                wxCoord x, wxCoord y,
 397                                bool useMask)
 398 {
 399     wxCHECK_RET( bmp.Ok(), _T("invalid bitmap in wxPrinterDC::DrawBitmap") );
 400
 401     int width = bmp.GetWidth(),
 402         height = bmp.GetHeight();
 403
 404     if ( !(::GetDeviceCaps(GetHdc(), RASTERCAPS) & RC_STRETCHDIB) ||
 405             !DrawBitmapUsingStretchDIBits(GetHdc(), bmp, x, y) )
 406     {
 407         // no support for StretchDIBits() or an error occured if we got here
 408         wxMemoryDC memDC;
 409         memDC.SelectObject(bmp);
 410
 411         Blit(x, y, width, height, &memDC, 0, 0, wxCOPY, useMask);
 412
 413         memDC.SelectObject(wxNullBitmap);
 414     }
 415 }
 416
 417 bool wxPrinterDC::DoBlit(wxCoord xdest, wxCoord ydest,
 418                          wxCoord width, wxCoord height,
 419                          wxDC *source,
 420                          wxCoord WXUNUSED(xsrc), wxCoord WXUNUSED(ysrc),
 421                          int WXUNUSED(rop), bool useMask,
 422                          wxCoord WXUNUSED(xsrcMask), wxCoord WXUNUSED(ysrcMask))
 423 {
 424     wxBitmap& bmp = source->GetSelectedBitmap();
 425     wxMask *mask = useMask ? bmp.GetMask() : NULL;
 426     if ( mask )
 427     {
 428         // If we are printing source colours are screen colours not printer
 429         // colours and so we need copy the bitmap pixel by pixel.
 430         RECT rect;
 431         HDC dcSrc = GetHdcOf(*source);
 432         MemoryHDC dcMask(dcSrc);
 433         SelectInHDC selectMask(dcMask, (HBITMAP)mask->GetMaskBitmap());
 434
 435         for (int x = 0; x < width; x++)
 436         {
 437             for (int y = 0; y < height; y++)
 438             {
 439                 COLORREF cref = ::GetPixel(dcMask, x, y);
 440                 if (cref)
 441                 {
 442                     HBRUSH brush = ::CreateSolidBrush(::GetPixel(dcSrc, x, y));
 443                     rect.left = xdest + x;
 444                     rect.right = rect.left + 1;
 445                     rect.top = ydest + y;
 446                     rect.bottom = rect.top + 1;
 447                     ::FillRect(GetHdc(), &rect, brush);
 448                     ::DeleteObject(brush);
 449                 }
 450             }
 451         }
 452     }
 453     else // no mask
 454     {
 455         if ( !(::GetDeviceCaps(GetHdc(), RASTERCAPS) & RC_STRETCHDIB) ||
 456                 !DrawBitmapUsingStretchDIBits(GetHdc(), bmp, xdest, ydest) )
 457         {
 458             // no support for StretchDIBits
 459
 460             // as we are printing, source colours are screen colours not
 461             // printer colours and so we need copy the bitmap pixel by pixel.
 462             HDC dcSrc = GetHdcOf(*source);
 463             RECT rect;
 464             for (int y = 0; y < height; y++)
 465             {
 466                 // optimization: draw identical adjacent pixels together.
 467                 for (int x = 0; x < width; x++)
 468                 {
 469                     COLORREF col = ::GetPixel(dcSrc, x, y);
 470                     HBRUSH brush = ::CreateSolidBrush( col );
 471
 472                     rect.left = xdest + x;
 473                     rect.top = ydest + y;
 474                     while( (x + 1 < width) &&
 475                                 (::GetPixel(dcSrc, x + 1, y) == col ) )
 476                     {
 477                         ++x;
 478                     }
 479                     rect.right = xdest + x + 1;
 480                     rect.bottom = rect.top + 1;
 481                     ::FillRect((HDC) m_hDC, &rect, brush);
 482                     ::DeleteObject(brush);
 483                 }
 484             }
 485         }
 486     }
 487
 488     return true;
 489 }
 490
 491 #endif
 492     // wxUSE_PRINTING_ARCHITECTURE