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     if ( ::StartDoc(GetHdc(), &docinfo) <= 0 )
 197     {
 198         wxLogLastError(wxT("StartDoc"));
 199         return false;
 200     }
 201
 202     return true;
 203 }
 204
 205 void wxPrinterDC::EndDoc()
 206 {
 207     if (m_hDC) ::EndDoc((HDC) m_hDC);
 208 }
 209
 210 void wxPrinterDC::StartPage()
 211 {
 212     if (m_hDC)
 213         ::StartPage((HDC) m_hDC);
 214 }
 215
 216 void wxPrinterDC::EndPage()
 217 {
 218     if (m_hDC)
 219         ::EndPage((HDC) m_hDC);
 220 }
 221
 222
 223 wxRect wxPrinterDC::GetPaperRect()
 224
 225 {
 226     if (!Ok()) return wxRect(0, 0, 0, 0);
 227     int w = ::GetDeviceCaps((HDC) m_hDC, PHYSICALWIDTH);
 228     int h = ::GetDeviceCaps((HDC) m_hDC, PHYSICALHEIGHT);
 229     int x = -::GetDeviceCaps((HDC) m_hDC, PHYSICALOFFSETX);
 230     int y = -::GetDeviceCaps((HDC) m_hDC, PHYSICALOFFSETY);
 231     return wxRect(x, y, w, h);
 232 }
 233
 234
 235 #if !wxUSE_PS_PRINTING
 236
 237 // Returns default device and port names
 238 static bool wxGetDefaultDeviceName(wxString& deviceName, wxString& portName)
 239 {
 240     deviceName.clear();
 241
 242     LPDEVNAMES  lpDevNames;
 243     LPTSTR      lpszDeviceName;
 244     LPTSTR      lpszPortName;
 245
 246     PRINTDLG    pd;
 247
 248     // Cygwin has trouble believing PRINTDLG is 66 bytes - thinks it is 68
 249 #ifdef __GNUWIN32__
 250     memset(&pd, 0, 66);
 251     pd.lStructSize    = 66; // sizeof(PRINTDLG);
 252 #else
 253     memset(&pd, 0, sizeof(PRINTDLG));
 254     pd.lStructSize    = sizeof(PRINTDLG);
 255 #endif
 256
 257     pd.hwndOwner      = (HWND)NULL;
 258     pd.hDevMode       = NULL; // Will be created by PrintDlg
 259     pd.hDevNames      = NULL; // Ditto
 260     pd.Flags          = PD_RETURNDEFAULT;
 261     pd.nCopies        = 1;
 262
 263     if (!PrintDlg((LPPRINTDLG)&pd))
 264     {
 265         if ( pd.hDevMode )
 266             GlobalFree(pd.hDevMode);
 267         if (pd.hDevNames)
 268             GlobalFree(pd.hDevNames);
 269
 270         return false;
 271     }
 272
 273     if (pd.hDevNames)
 274     {
 275         lpDevNames = (LPDEVNAMES)GlobalLock(pd.hDevNames);
 276         lpszDeviceName = (LPTSTR)lpDevNames + lpDevNames->wDeviceOffset;
 277         lpszPortName   = (LPTSTR)lpDevNames + lpDevNames->wOutputOffset;
 278
 279         deviceName = lpszDeviceName;
 280         portName = lpszPortName;
 281
 282         GlobalUnlock(pd.hDevNames);
 283         GlobalFree(pd.hDevNames);
 284         pd.hDevNames=NULL;
 285     }
 286
 287     if (pd.hDevMode)
 288     {
 289         GlobalFree(pd.hDevMode);
 290         pd.hDevMode=NULL;
 291     }
 292     return ( !deviceName.empty() );
 293 }
 294
 295 #endif // !wxUSE_PS_PRINTING
 296
 297 // Gets an HDC for the specified printer configuration
 298 WXHDC WXDLLEXPORT wxGetPrinterDC(const wxPrintData& printDataConst)
 299 {
 300 #if wxUSE_PS_PRINTING
 301     // TODO
 302     wxUnusedVar(printDataConst);
 303     return 0;
 304 #else // native Windows printing
 305     wxWindowsPrintNativeData *data =
 306         (wxWindowsPrintNativeData *) printDataConst.GetNativeData();
 307
 308     data->TransferFrom( printDataConst );
 309
 310     wxString deviceName = printDataConst.GetPrinterName();
 311     if ( deviceName.empty() )
 312     {
 313         // Retrieve the default device name
 314         wxString portName;
 315         if ( !wxGetDefaultDeviceName(deviceName, portName) )
 316         {
 317             return 0; // Could not get default device name
 318         }
 319     }
 320
 321
 322     HGLOBAL hDevMode = (HGLOBAL)(DWORD) data->GetDevMode();
 323
 324     DEVMODE *lpDevMode = hDevMode ? (DEVMODE *)::GlobalLock(hDevMode) : NULL;
 325
 326     HDC hDC = ::CreateDC(NULL, deviceName, NULL, lpDevMode);
 327     if ( !hDC )
 328         wxLogLastError(_T("CreateDC(printer)"));
 329
 330     if ( lpDevMode )
 331         ::GlobalUnlock(hDevMode);
 332
 333     return (WXHDC) hDC;
 334 #endif // PostScript/Windows printing
 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
 401         memDC.SelectObjectAsSource(bmp);
 402
 403         Blit(x, y, width, height, &memDC, 0, 0, wxCOPY, useMask);
 404
 405         memDC.SelectObject(wxNullBitmap);
 406     }
 407 }
 408
 409 bool wxPrinterDC::DoBlit(wxCoord xdest, wxCoord ydest,
 410                          wxCoord width, wxCoord height,
 411                          wxDC *source,
 412                          wxCoord WXUNUSED(xsrc), wxCoord WXUNUSED(ysrc),
 413                          int WXUNUSED(rop), bool useMask,
 414                          wxCoord WXUNUSED(xsrcMask), wxCoord WXUNUSED(ysrcMask))
 415 {
 416     wxBitmap& bmp = source->GetSelectedBitmap();
 417     wxMask *mask = useMask ? bmp.GetMask() : NULL;
 418     if ( mask )
 419     {
 420         // If we are printing source colours are screen colours not printer
 421         // colours and so we need copy the bitmap pixel by pixel.
 422         RECT rect;
 423         HDC dcSrc = GetHdcOf(*source);
 424         MemoryHDC dcMask(dcSrc);
 425         SelectInHDC selectMask(dcMask, (HBITMAP)mask->GetMaskBitmap());
 426
 427         for (int x = 0; x < width; x++)
 428         {
 429             for (int y = 0; y < height; y++)
 430             {
 431                 COLORREF cref = ::GetPixel(dcMask, x, y);
 432                 if (cref)
 433                 {
 434                     HBRUSH brush = ::CreateSolidBrush(::GetPixel(dcSrc, x, y));
 435                     rect.left = xdest + x;
 436                     rect.right = rect.left + 1;
 437                     rect.top = ydest + y;
 438                     rect.bottom = rect.top + 1;
 439                     ::FillRect(GetHdc(), &rect, brush);
 440                     ::DeleteObject(brush);
 441                 }
 442             }
 443         }
 444     }
 445     else // no mask
 446     {
 447         if ( !(::GetDeviceCaps(GetHdc(), RASTERCAPS) & RC_STRETCHDIB) ||
 448                 !DrawBitmapUsingStretchDIBits(GetHdc(), bmp, xdest, ydest) )
 449         {
 450             // no support for StretchDIBits
 451
 452             // as we are printing, source colours are screen colours not
 453             // printer colours and so we need copy the bitmap pixel by pixel.
 454             HDC dcSrc = GetHdcOf(*source);
 455             RECT rect;
 456             for (int y = 0; y < height; y++)
 457             {
 458                 // optimization: draw identical adjacent pixels together.
 459                 for (int x = 0; x < width; x++)
 460                 {
 461                     COLORREF col = ::GetPixel(dcSrc, x, y);
 462                     HBRUSH brush = ::CreateSolidBrush( col );
 463
 464                     rect.left = xdest + x;
 465                     rect.top = ydest + y;
 466                     while( (x + 1 < width) &&
 467                                 (::GetPixel(dcSrc, x + 1, y) == col ) )
 468                     {
 469                         ++x;
 470                     }
 471                     rect.right = xdest + x + 1;
 472                     rect.bottom = rect.top + 1;
 473                     ::FillRect((HDC) m_hDC, &rect, brush);
 474                     ::DeleteObject(brush);
 475                 }
 476             }
 477         }
 478     }
 479
 480     return true;
 481 }
 482
 483 #endif
 484     // wxUSE_PRINTING_ARCHITECTURE