src/msw/printwin.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        printwin.cpp
   3 // Purpose:     wxWindowsPrinter framework
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   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 "printwin.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 #include "wx/defs.h"
  32
  33 // Don't use the Windows printer if we're in wxUniv mode and using
  34 // the PostScript architecture
  35 #if wxUSE_PRINTING_ARCHITECTURE && (!defined(__WXUNIVERSAL__) || !wxUSE_POSTSCRIPT_ARCHITECTURE_IN_MSW)
  36
  37 #ifndef WX_PRECOMP
  38     #include "wx/window.h"
  39     #include "wx/msw/private.h"
  40     #include "wx/utils.h"
  41     #include "wx/dc.h"
  42     #include "wx/app.h"
  43     #include "wx/msgdlg.h"
  44     #include "wx/intl.h"
  45 #endif
  46
  47 #include "wx/msw/printwin.h"
  48 #include "wx/dcprint.h"
  49 #include "wx/printdlg.h"
  50 #include "wx/log.h"
  51 #include "wx/msw/private.h"
  52
  53 #include <stdlib.h>
  54
  55 #include "wx/msw/private.h"
  56
  57 #include <commdlg.h>
  58
  59 #ifndef __WIN32__
  60     #include <print.h>
  61 #endif
  62
  63 // ---------------------------------------------------------------------------
  64 // private functions
  65 // ---------------------------------------------------------------------------
  66
  67 LONG APIENTRY _EXPORT wxAbortProc(HDC hPr, int Code);
  68
  69 // ---------------------------------------------------------------------------
  70 // wxWin macros
  71 // ---------------------------------------------------------------------------
  72
  73     IMPLEMENT_DYNAMIC_CLASS(wxWindowsPrinter, wxPrinterBase)
  74     IMPLEMENT_CLASS(wxWindowsPrintPreview, wxPrintPreviewBase)
  75
  76 // ===========================================================================
  77 // implementation
  78 // ===========================================================================
  79
  80 // ---------------------------------------------------------------------------
  81 // Printer
  82 // ---------------------------------------------------------------------------
  83
  84 wxWindowsPrinter::wxWindowsPrinter(wxPrintDialogData *data)
  85                 : wxPrinterBase(data)
  86 {
  87     m_lpAbortProc = (WXFARPROC) MakeProcInstance((FARPROC) wxAbortProc, wxGetInstance());
  88 }
  89
  90 wxWindowsPrinter::~wxWindowsPrinter()
  91 {
  92     // avoids warning about statement with no effect (FreeProcInstance
  93     // doesn't do anything under Win32)
  94 #if !defined(__WIN32__) && !defined(__NT__)
  95     FreeProcInstance((FARPROC) m_lpAbortProc);
  96 #endif
  97 }
  98
  99 bool wxWindowsPrinter::Print(wxWindow *parent, wxPrintout *printout, bool prompt)
 100 {
 101     sm_abortIt = false;
 102     sm_abortWindow = NULL;
 103
 104     if (!printout)
 105     {
 106         sm_lastError = wxPRINTER_ERROR;
 107         return false;
 108     }
 109
 110     printout->SetIsPreview(false);
 111
 112     if (m_printDialogData.GetMinPage() < 1)
 113         m_printDialogData.SetMinPage(1);
 114     if (m_printDialogData.GetMaxPage() < 1)
 115         m_printDialogData.SetMaxPage(9999);
 116
 117     // Create a suitable device context
 118     wxDC *dc = NULL;
 119     if (prompt)
 120     {
 121         dc = PrintDialog(parent);
 122         if (!dc)
 123             return false;
 124     }
 125     else
 126     {
 127         dc = new wxPrinterDC(m_printDialogData.GetPrintData());
 128     }
 129
 130     // May have pressed cancel.
 131     if (!dc || !dc->Ok())
 132     {
 133         if (dc) delete dc;
 134         return false;
 135     }
 136
 137     int logPPIScreenX = 0;
 138     int logPPIScreenY = 0;
 139     int logPPIPrinterX = 0;
 140     int logPPIPrinterY = 0;
 141
 142     HDC hdc = ::GetDC(NULL);
 143     logPPIScreenX = ::GetDeviceCaps(hdc, LOGPIXELSX);
 144     logPPIScreenY = ::GetDeviceCaps(hdc, LOGPIXELSY);
 145     ::ReleaseDC(NULL, hdc);
 146
 147     logPPIPrinterX = ::GetDeviceCaps((HDC) dc->GetHDC(), LOGPIXELSX);
 148     logPPIPrinterY = ::GetDeviceCaps((HDC) dc->GetHDC(), LOGPIXELSY);
 149     if (logPPIPrinterX == 0 || logPPIPrinterY == 0)
 150     {
 151         delete dc;
 152         sm_lastError = wxPRINTER_ERROR;
 153         return false;
 154     }
 155
 156     printout->SetPPIScreen(logPPIScreenX, logPPIScreenY);
 157     printout->SetPPIPrinter(logPPIPrinterX, logPPIPrinterY);
 158
 159     // Set printout parameters
 160     printout->SetDC(dc);
 161
 162     int w, h;
 163     dc->GetSize(&w, &h);
 164     printout->SetPageSizePixels((int)w, (int)h);
 165
 166     dc->GetSizeMM(&w, &h);
 167     printout->SetPageSizeMM((int)w, (int)h);
 168
 169     // Create an abort window
 170     wxBusyCursor busyCursor;
 171
 172     printout->OnPreparePrinting();
 173
 174     // Get some parameters from the printout, if defined
 175     int fromPage, toPage;
 176     int minPage, maxPage;
 177     printout->GetPageInfo(&minPage, &maxPage, &fromPage, &toPage);
 178
 179     if (maxPage == 0)
 180     {
 181         sm_lastError = wxPRINTER_ERROR;
 182         return false;
 183     }
 184
 185     // Only set min and max, because from and to have been
 186     // set by the user
 187     m_printDialogData.SetMinPage(minPage);
 188     m_printDialogData.SetMaxPage(maxPage);
 189
 190     wxWindow *win = CreateAbortWindow(parent, printout);
 191     wxYield();
 192
 193 #if defined(__BORLANDC__) || defined(__GNUWIN32__) || defined(__SALFORDC__) || !defined(__WIN32__)
 194 #ifdef STRICT
 195     ::SetAbortProc((HDC) dc->GetHDC(), (ABORTPROC) m_lpAbortProc);
 196 #else
 197     ::SetAbortProc((HDC) dc->GetHDC(), (FARPROC) m_lpAbortProc);
 198 #endif
 199 #else
 200     ::SetAbortProc((HDC) dc->GetHDC(), (int (_stdcall *)
 201         // cast it to right type only if required
 202         // FIXME it's really cdecl and we're casting it to stdcall - either there is
 203         //       something I don't understand or it will crash at first usage
 204 #ifdef STRICT
 205         (HDC, int)
 206 #else
 207         ()
 208 #endif
 209         )m_lpAbortProc);
 210 #endif
 211
 212     if (!win)
 213     {
 214         wxLogDebug(wxT("Could not create an abort dialog."));
 215         sm_lastError = wxPRINTER_ERROR;
 216
 217         delete dc;
 218     }
 219     sm_abortWindow = win;
 220     sm_abortWindow->Show();
 221     wxSafeYield();
 222
 223     printout->OnBeginPrinting();
 224
 225     sm_lastError = wxPRINTER_NO_ERROR;
 226
 227     int minPageNum = minPage, maxPageNum = maxPage;
 228
 229     if ( !m_printDialogData.GetAllPages() )
 230     {
 231         minPageNum = m_printDialogData.GetFromPage();
 232         maxPageNum = m_printDialogData.GetToPage();
 233     }
 234
 235     int copyCount;
 236     for ( copyCount = 1;
 237           copyCount <= m_printDialogData.GetNoCopies();
 238           copyCount++ )
 239     {
 240         if ( !printout->OnBeginDocument(minPageNum, maxPageNum) )
 241         {
 242             wxLogError(_("Could not start printing."));
 243             sm_lastError = wxPRINTER_ERROR;
 244             break;
 245         }
 246         if (sm_abortIt)
 247         {
 248             sm_lastError = wxPRINTER_CANCELLED;
 249             break;
 250         }
 251
 252         int pn;
 253
 254         for ( pn = minPageNum;
 255               pn <= maxPageNum && printout->HasPage(pn);
 256               pn++ )
 257         {
 258             if ( sm_abortIt )
 259             {
 260                 sm_lastError = wxPRINTER_CANCELLED;
 261                 break;
 262             }
 263
 264             dc->StartPage();
 265             bool cont = printout->OnPrintPage(pn);
 266             dc->EndPage();
 267
 268             if ( !cont )
 269             {
 270                 sm_lastError = wxPRINTER_CANCELLED;
 271                 break;
 272             }
 273         }
 274
 275         printout->OnEndDocument();
 276     }
 277
 278     printout->OnEndPrinting();
 279
 280     if (sm_abortWindow)
 281     {
 282         sm_abortWindow->Show(false);
 283         delete sm_abortWindow;
 284         sm_abortWindow = NULL;
 285     }
 286
 287     delete dc;
 288
 289     return (sm_lastError == wxPRINTER_NO_ERROR);
 290 }
 291
 292 wxDC* wxWindowsPrinter::PrintDialog(wxWindow *parent)
 293 {
 294     wxDC* dc = (wxDC*) NULL;
 295
 296     wxPrintDialog dialog(parent, & m_printDialogData);
 297     int ret = dialog.ShowModal();
 298
 299     if (ret == wxID_OK)
 300     {
 301         dc = dialog.GetPrintDC();
 302         m_printDialogData = dialog.GetPrintDialogData();
 303         if (dc == NULL)
 304             sm_lastError = wxPRINTER_ERROR;
 305         else
 306             sm_lastError = wxPRINTER_NO_ERROR;
 307     }
 308     else
 309         sm_lastError = wxPRINTER_CANCELLED;
 310
 311     return dc;
 312 }
 313
 314 bool wxWindowsPrinter::Setup(wxWindow *parent)
 315 {
 316     wxPrintDialog dialog(parent, & m_printDialogData);
 317     dialog.GetPrintDialogData().SetSetupDialog(true);
 318
 319     int ret = dialog.ShowModal();
 320
 321     if (ret == wxID_OK)
 322     {
 323         m_printDialogData = dialog.GetPrintDialogData();
 324     }
 325
 326     return (ret == wxID_OK);
 327 }
 328
 329 /*
 330 * Print preview
 331 */
 332
 333 wxWindowsPrintPreview::wxWindowsPrintPreview(wxPrintout *printout,
 334                                              wxPrintout *printoutForPrinting,
 335                                              wxPrintDialogData *data)
 336                      : wxPrintPreviewBase(printout, printoutForPrinting, data)
 337 {
 338     DetermineScaling();
 339 }
 340
 341 wxWindowsPrintPreview::wxWindowsPrintPreview(wxPrintout *printout,
 342                                              wxPrintout *printoutForPrinting,
 343                                              wxPrintData *data)
 344                      : wxPrintPreviewBase(printout, printoutForPrinting, data)
 345 {
 346     DetermineScaling();
 347 }
 348
 349 wxWindowsPrintPreview::~wxWindowsPrintPreview()
 350 {
 351 }
 352
 353 bool wxWindowsPrintPreview::Print(bool interactive)
 354 {
 355     if (!m_printPrintout)
 356         return false;
 357     wxWindowsPrinter printer(&m_printDialogData);
 358     return printer.Print(m_previewFrame, m_printPrintout, interactive);
 359 }
 360
 361 void wxWindowsPrintPreview::DetermineScaling()
 362 {
 363     HDC dc = ::GetDC(NULL);
 364     int screenWidth = ::GetDeviceCaps(dc, HORZSIZE);
 365     int screenYRes = ::GetDeviceCaps(dc, VERTRES);
 366     int logPPIScreenX = ::GetDeviceCaps(dc, LOGPIXELSX);
 367     int logPPIScreenY = ::GetDeviceCaps(dc, LOGPIXELSY);
 368     m_previewPrintout->SetPPIScreen(logPPIScreenX, logPPIScreenY);
 369
 370     ::ReleaseDC(NULL, dc);
 371
 372     // Get a device context for the currently selected printer
 373     wxPrinterDC printerDC(m_printDialogData.GetPrintData());
 374
 375     int printerWidth = 150;
 376     int printerHeight = 250;
 377     int printerXRes = 1500;
 378     int printerYRes = 2500;
 379
 380     dc = GetHdcOf(printerDC);
 381     if ( dc )
 382     {
 383         printerWidth = ::GetDeviceCaps(dc, HORZSIZE);
 384         printerHeight = ::GetDeviceCaps(dc, VERTSIZE);
 385         printerXRes = ::GetDeviceCaps(dc, HORZRES);
 386         printerYRes = ::GetDeviceCaps(dc, VERTRES);
 387
 388         int logPPIPrinterX = ::GetDeviceCaps(dc, LOGPIXELSX);
 389         int logPPIPrinterY = ::GetDeviceCaps(dc, LOGPIXELSY);
 390
 391         m_previewPrintout->SetPPIPrinter(logPPIPrinterX, logPPIPrinterY);
 392         m_previewPrintout->SetPageSizeMM(printerWidth, printerHeight);
 393
 394         if (logPPIPrinterX == 0 || logPPIPrinterY == 0 || printerWidth == 0 || printerHeight == 0)
 395             m_isOk = false;
 396     }
 397     else
 398         m_isOk = false;
 399
 400     m_pageWidth = printerXRes;
 401     m_pageHeight = printerYRes;
 402
 403     // At 100%, the page should look about page-size on the screen.
 404     m_previewScale = (float)((float)screenWidth/(float)printerWidth);
 405     m_previewScale = m_previewScale * (float)((float)screenYRes/(float)printerYRes);
 406 }
 407
 408 /****************************************************************************
 409
 410   FUNCTION: wxAbortProc()
 411
 412     PURPOSE:  Processes messages for the Abort Dialog box
 413
 414 ****************************************************************************/
 415
 416 LONG APIENTRY _EXPORT wxAbortProc(HDC WXUNUSED(hPr), int WXUNUSED(Code))
 417 {
 418     MSG msg;
 419
 420     if (!wxPrinterBase::sm_abortWindow)              /* If the abort dialog isn't up yet */
 421         return(TRUE);
 422
 423     /* Process messages intended for the abort dialog box */
 424
 425     while (!wxPrinterBase::sm_abortIt && PeekMessage(&msg, 0, 0, 0, TRUE))
 426         if (!IsDialogMessage((HWND) wxPrinterBase::sm_abortWindow->GetHWND(), &msg)) {
 427             TranslateMessage(&msg);
 428             DispatchMessage(&msg);
 429         }
 430
 431         /* bAbort is TRUE (return is FALSE) if the user has aborted */
 432
 433         return (!wxPrinterBase::sm_abortIt);
 434 }
 435
 436 #endif
 437     // wxUSE_PRINTING_ARCHITECTURE