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 #if wxUSE_PRINTING_ARCHITECTURE
  28
  29 #include "wx/dcprint.h"
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/msw/wrapcdlg.h"
  33     #include "wx/string.h"
  34     #include "wx/log.h"
  35     #include "wx/window.h"
  36     #include "wx/dcmemory.h"
  37     #include "wx/math.h"
  38 #endif
  39
  40 #include "wx/msw/private.h"
  41
  42 #if wxUSE_WXDIB
  43     #include "wx/msw/dib.h"
  44 #endif
  45
  46 #include "wx/printdlg.h"
  47 #include "wx/msw/printdlg.h"
  48
  49 #ifndef __WIN32__
  50     #include <print.h>
  51 #endif
  52
  53 // mingw32 defines GDI_ERROR incorrectly
  54 #if defined(__GNUWIN32__) || !defined(GDI_ERROR)
  55     #undef GDI_ERROR
  56     #define GDI_ERROR ((int)-1)
  57 #endif
  58
  59 #if defined(__WXUNIVERSAL__) && wxUSE_POSTSCRIPT_ARCHITECTURE_IN_MSW
  60     #define wxUSE_PS_PRINTING 1
  61 #else
  62     #define wxUSE_PS_PRINTING 0
  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     docinfo.lpszDatatype = NULL;
 191     docinfo.fwType = 0;
 192
 193     if (!m_hDC)
 194         return false;
 195
 196     int ret = ::StartDoc(GetHdc(), &docinfo);
 197
 198     if (ret <= 0)
 199     {
 200         DWORD lastError = GetLastError();
 201         wxLogDebug(wxT("wxDC::StartDoc failed with error: %ld\n"), lastError);
 202     }
 203
 204     return (ret > 0);
 205 }
 206
 207 void wxPrinterDC::EndDoc()
 208 {
 209     if (m_hDC) ::EndDoc((HDC) m_hDC);
 210 }
 211
 212 void wxPrinterDC::StartPage()
 213 {
 214     if (m_hDC)
 215         ::StartPage((HDC) m_hDC);
 216 }
 217
 218 void wxPrinterDC::EndPage()
 219 {
 220     if (m_hDC)
 221         ::EndPage((HDC) m_hDC);
 222 }
 223
 224
 225 wxRect wxPrinterDC::GetPaperRect()
 226
 227 {
 228     if (!Ok()) return wxRect(0, 0, 0, 0);
 229     int w = ::GetDeviceCaps((HDC) m_hDC, PHYSICALWIDTH);
 230     int h = ::GetDeviceCaps((HDC) m_hDC, PHYSICALHEIGHT);
 231     int x = -::GetDeviceCaps((HDC) m_hDC, PHYSICALOFFSETX);
 232     int y = -::GetDeviceCaps((HDC) m_hDC, PHYSICALOFFSETY);
 233     return wxRect(x, y, w, h);
 234 }
 235
 236
 237 #if !wxUSE_PS_PRINTING
 238
 239 // Returns default device and port names
 240 static bool wxGetDefaultDeviceName(wxString& deviceName, wxString& portName)
 241 {
 242     deviceName.clear();
 243
 244     LPDEVNAMES  lpDevNames;
 245     LPTSTR      lpszDeviceName;
 246     LPTSTR      lpszPortName;
 247
 248     PRINTDLG    pd;
 249
 250     // Cygwin has trouble believing PRINTDLG is 66 bytes - thinks it is 68
 251 #ifdef __GNUWIN32__
 252     memset(&pd, 0, 66);
 253     pd.lStructSize    = 66; // sizeof(PRINTDLG);
 254 #else
 255     memset(&pd, 0, sizeof(PRINTDLG));
 256     pd.lStructSize    = sizeof(PRINTDLG);
 257 #endif
 258
 259     pd.hwndOwner      = (HWND)NULL;
 260     pd.hDevMode       = NULL; // Will be created by PrintDlg
 261     pd.hDevNames      = NULL; // Ditto
 262     pd.Flags          = PD_RETURNDEFAULT;
 263     pd.nCopies        = 1;
 264
 265     if (!PrintDlg((LPPRINTDLG)&pd))
 266     {
 267         if ( pd.hDevMode )
 268             GlobalFree(pd.hDevMode);
 269         if (pd.hDevNames)
 270             GlobalFree(pd.hDevNames);
 271
 272         return false;
 273     }
 274
 275     if (pd.hDevNames)
 276     {
 277         lpDevNames = (LPDEVNAMES)GlobalLock(pd.hDevNames);
 278         lpszDeviceName = (LPTSTR)lpDevNames + lpDevNames->wDeviceOffset;
 279         lpszPortName   = (LPTSTR)lpDevNames + lpDevNames->wOutputOffset;
 280
 281         deviceName = lpszDeviceName;
 282         portName = lpszPortName;
 283
 284         GlobalUnlock(pd.hDevNames);
 285         GlobalFree(pd.hDevNames);
 286         pd.hDevNames=NULL;
 287     }
 288
 289     if (pd.hDevMode)
 290     {
 291         GlobalFree(pd.hDevMode);
 292         pd.hDevMode=NULL;
 293     }
 294     return ( !deviceName.empty() );
 295 }
 296
 297 #endif // !wxUSE_PS_PRINTING
 298
 299 // Gets an HDC for the specified printer configuration
 300 WXHDC WXDLLEXPORT wxGetPrinterDC(const wxPrintData& printDataConst)
 301 {
 302 #if wxUSE_PS_PRINTING
 303     // TODO
 304     wxUnusedVar(printDataConst);
 305     return 0;
 306 #else // native Windows printing
 307     wxWindowsPrintNativeData *data =
 308         (wxWindowsPrintNativeData *) printDataConst.GetNativeData();
 309
 310     data->TransferFrom( printDataConst );
 311
 312     wxString deviceName = printDataConst.GetPrinterName();
 313     if ( deviceName.empty() )
 314     {
 315         // Retrieve the default device name
 316         wxString portName;
 317         if ( !wxGetDefaultDeviceName(deviceName, portName) )
 318         {
 319             return 0; // Could not get default device name
 320         }
 321     }
 322
 323
 324     HGLOBAL hDevMode = (HGLOBAL)(DWORD) data->GetDevMode();
 325
 326     DEVMODE *lpDevMode = hDevMode ? (DEVMODE *)::GlobalLock(hDevMode) : NULL;
 327
 328     HDC hDC = ::CreateDC(NULL, deviceName, NULL, lpDevMode);
 329     if ( !hDC )
 330         wxLogLastError(_T("CreateDC(printer)"));
 331
 332     if ( lpDevMode )
 333         ::GlobalUnlock(hDevMode);
 334
 335     return (WXHDC) hDC;
 336 #endif // PostScript/Windows printing
 337 }
 338
 339 // ----------------------------------------------------------------------------
 340 // wxPrinterDC bit blitting/bitmap drawing
 341 // ----------------------------------------------------------------------------
 342
 343 // helper of DoDrawBitmap() and DoBlit()
 344 static
 345 bool DrawBitmapUsingStretchDIBits(HDC hdc,
 346                                   const wxBitmap& bmp,
 347                                   wxCoord x, wxCoord y)
 348 {
 349 #if wxUSE_WXDIB
 350     wxDIB dib(bmp);
 351     bool ok = dib.IsOk();
 352     if ( !ok )
 353         return false;
 354
 355     DIBSECTION ds;
 356     if ( !::GetObject(dib.GetHandle(), sizeof(ds), &ds) )
 357     {
 358         wxLogLastError(_T("GetObject(DIBSECTION)"));
 359
 360         return false;
 361     }
 362
 363     // ok, we've got all data we need, do blit it
 364     if ( ::StretchDIBits
 365             (
 366                 hdc,
 367                 x, y,
 368                 ds.dsBmih.biWidth, ds.dsBmih.biHeight,
 369                 0, 0,
 370                 ds.dsBmih.biWidth, ds.dsBmih.biHeight,
 371                 ds.dsBm.bmBits,
 372                 (LPBITMAPINFO)&ds.dsBmih,
 373                 DIB_RGB_COLORS,
 374                 SRCCOPY
 375             ) == GDI_ERROR )
 376     {
 377         wxLogLastError(wxT("StretchDIBits"));
 378
 379         return false;
 380     }
 381
 382     return true;
 383 #else
 384     return false;
 385 #endif
 386 }
 387
 388 void wxPrinterDC::DoDrawBitmap(const wxBitmap& bmp,
 389                                wxCoord x, wxCoord y,
 390                                bool useMask)
 391 {
 392     wxCHECK_RET( bmp.Ok(), _T("invalid bitmap in wxPrinterDC::DrawBitmap") );
 393
 394     int width = bmp.GetWidth(),
 395         height = bmp.GetHeight();
 396
 397     if ( !(::GetDeviceCaps(GetHdc(), RASTERCAPS) & RC_STRETCHDIB) ||
 398             !DrawBitmapUsingStretchDIBits(GetHdc(), bmp, x, y) )
 399     {
 400         // no support for StretchDIBits() or an error occurred if we got here
 401         wxMemoryDC memDC;
 402         memDC.SelectObject(bmp);
 403
 404         Blit(x, y, width, height, &memDC, 0, 0, wxCOPY, useMask);
 405
 406         memDC.SelectObject(wxNullBitmap);
 407     }
 408 }
 409
 410 bool wxPrinterDC::DoBlit(wxCoord xdest, wxCoord ydest,
 411                          wxCoord width, wxCoord height,
 412                          wxDC *source,
 413                          wxCoord WXUNUSED(xsrc), wxCoord WXUNUSED(ysrc),
 414                          int WXUNUSED(rop), bool useMask,
 415                          wxCoord WXUNUSED(xsrcMask), wxCoord WXUNUSED(ysrcMask))
 416 {
 417     wxBitmap& bmp = source->GetSelectedBitmap();
 418     wxMask *mask = useMask ? bmp.GetMask() : NULL;
 419     if ( mask )
 420     {
 421         // If we are printing source colours are screen colours not printer
 422         // colours and so we need copy the bitmap pixel by pixel.
 423         RECT rect;
 424         HDC dcSrc = GetHdcOf(*source);
 425         MemoryHDC dcMask(dcSrc);
 426         SelectInHDC selectMask(dcMask, (HBITMAP)mask->GetMaskBitmap());
 427
 428         for (int x = 0; x < width; x++)
 429         {
 430             for (int y = 0; y < height; y++)
 431             {
 432                 COLORREF cref = ::GetPixel(dcMask, x, y);
 433                 if (cref)
 434                 {
 435                     HBRUSH brush = ::CreateSolidBrush(::GetPixel(dcSrc, x, y));
 436                     rect.left = xdest + x;
 437                     rect.right = rect.left + 1;
 438                     rect.top = ydest + y;
 439                     rect.bottom = rect.top + 1;
 440                     ::FillRect(GetHdc(), &rect, brush);
 441                     ::DeleteObject(brush);
 442                 }
 443             }
 444         }
 445     }
 446     else // no mask
 447     {
 448         if ( !(::GetDeviceCaps(GetHdc(), RASTERCAPS) & RC_STRETCHDIB) ||
 449                 !DrawBitmapUsingStretchDIBits(GetHdc(), bmp, xdest, ydest) )
 450         {
 451             // no support for StretchDIBits
 452
 453             // as we are printing, source colours are screen colours not
 454             // printer colours and so we need copy the bitmap pixel by pixel.
 455             HDC dcSrc = GetHdcOf(*source);
 456             RECT rect;
 457             for (int y = 0; y < height; y++)
 458             {
 459                 // optimization: draw identical adjacent pixels together.
 460                 for (int x = 0; x < width; x++)
 461                 {
 462                     COLORREF col = ::GetPixel(dcSrc, x, y);
 463                     HBRUSH brush = ::CreateSolidBrush( col );
 464
 465                     rect.left = xdest + x;
 466                     rect.top = ydest + y;
 467                     while( (x + 1 < width) &&
 468                                 (::GetPixel(dcSrc, x + 1, y) == col ) )
 469                     {
 470                         ++x;
 471                     }
 472                     rect.right = xdest + x + 1;
 473                     rect.bottom = rect.top + 1;
 474                     ::FillRect((HDC) m_hDC, &rect, brush);
 475                     ::DeleteObject(brush);
 476                 }
 477             }
 478         }
 479     }
 480
 481     return true;
 482 }
 483
 484 #endif
 485     // wxUSE_PRINTING_ARCHITECTURE