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     wxBeginBusyCursor();
 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         wxEndBusyCursor();
 183         return false;
 184     }
 185
 186     // Only set min and max, because from and to have been
 187     // set by the user
 188     m_printDialogData.SetMinPage(minPage);
 189     m_printDialogData.SetMaxPage(maxPage);
 190
 191     wxWindow *win = CreateAbortWindow(parent, printout);
 192     wxYield();
 193
 194 #if defined(__BORLANDC__) || defined(__GNUWIN32__) || defined(__SALFORDC__) || !defined(__WIN32__)
 195 #ifdef STRICT
 196     ::SetAbortProc((HDC) dc->GetHDC(), (ABORTPROC) m_lpAbortProc);
 197 #else
 198     ::SetAbortProc((HDC) dc->GetHDC(), (FARPROC) m_lpAbortProc);
 199 #endif
 200 #else
 201     ::SetAbortProc((HDC) dc->GetHDC(), (int (_stdcall *)
 202         // cast it to right type only if required
 203         // FIXME it's really cdecl and we're casting it to stdcall - either there is
 204         //       something I don't understand or it will crash at first usage
 205 #ifdef STRICT
 206         (HDC, int)
 207 #else
 208         ()
 209 #endif
 210         )m_lpAbortProc);
 211 #endif
 212
 213     if (!win)
 214     {
 215         wxEndBusyCursor();
 216         wxLogDebug(wxT("Could not create an abort dialog."));
 217         sm_lastError = wxPRINTER_ERROR;
 218
 219         delete dc;
 220     }
 221     sm_abortWindow = win;
 222     sm_abortWindow->Show();
 223     wxSafeYield();
 224
 225     printout->OnBeginPrinting();
 226
 227     sm_lastError = wxPRINTER_NO_ERROR;
 228
 229     int minPageNum = minPage, maxPageNum = maxPage;
 230
 231     if ( !m_printDialogData.GetAllPages() )
 232     {
 233         minPageNum = m_printDialogData.GetFromPage();
 234         maxPageNum = m_printDialogData.GetToPage();
 235     }
 236
 237     int copyCount;
 238     for ( copyCount = 1;
 239           copyCount <= m_printDialogData.GetNoCopies();
 240           copyCount++ )
 241     {
 242         if ( !printout->OnBeginDocument(minPageNum, maxPageNum) )
 243         {
 244             wxEndBusyCursor();
 245             wxLogError(_("Could not start printing."));
 246             sm_lastError = wxPRINTER_ERROR;
 247             break;
 248         }
 249         if (sm_abortIt)
 250         {
 251             sm_lastError = wxPRINTER_CANCELLED;
 252             break;
 253         }
 254
 255         int pn;
 256
 257         for ( pn = minPageNum;
 258               pn <= maxPageNum && printout->HasPage(pn);
 259               pn++ )
 260         {
 261             if ( sm_abortIt )
 262             {
 263                 sm_lastError = wxPRINTER_CANCELLED;
 264                 break;
 265             }
 266
 267             dc->StartPage();
 268             bool cont = printout->OnPrintPage(pn);
 269             dc->EndPage();
 270
 271             if ( !cont )
 272             {
 273                 sm_lastError = wxPRINTER_CANCELLED;
 274                 break;
 275             }
 276         }
 277
 278         printout->OnEndDocument();
 279     }
 280
 281     printout->OnEndPrinting();
 282
 283     if (sm_abortWindow)
 284     {
 285         sm_abortWindow->Show(false);
 286         delete sm_abortWindow;
 287         sm_abortWindow = NULL;
 288     }
 289
 290     wxEndBusyCursor();
 291
 292     delete dc;
 293
 294     return (sm_lastError == wxPRINTER_NO_ERROR);
 295 }
 296
 297 wxDC* wxWindowsPrinter::PrintDialog(wxWindow *parent)
 298 {
 299     wxDC* dc = (wxDC*) NULL;
 300
 301     wxPrintDialog dialog(parent, & m_printDialogData);
 302     int ret = dialog.ShowModal();
 303
 304     if (ret == wxID_OK)
 305     {
 306         dc = dialog.GetPrintDC();
 307         m_printDialogData = dialog.GetPrintDialogData();
 308         if (dc == NULL)
 309             sm_lastError = wxPRINTER_ERROR;
 310         else
 311             sm_lastError = wxPRINTER_NO_ERROR;
 312     }
 313     else
 314         sm_lastError = wxPRINTER_CANCELLED;
 315
 316     return dc;
 317 }
 318
 319 bool wxWindowsPrinter::Setup(wxWindow *parent)
 320 {
 321     wxPrintDialog dialog(parent, & m_printDialogData);
 322     dialog.GetPrintDialogData().SetSetupDialog(true);
 323
 324     int ret = dialog.ShowModal();
 325
 326     if (ret == wxID_OK)
 327     {
 328         m_printDialogData = dialog.GetPrintDialogData();
 329     }
 330
 331     return (ret == wxID_OK);
 332 }
 333
 334 /*
 335 * Print preview
 336 */
 337
 338 wxWindowsPrintPreview::wxWindowsPrintPreview(wxPrintout *printout,
 339                                              wxPrintout *printoutForPrinting,
 340                                              wxPrintDialogData *data)
 341                      : wxPrintPreviewBase(printout, printoutForPrinting, data)
 342 {
 343     DetermineScaling();
 344 }
 345
 346 wxWindowsPrintPreview::wxWindowsPrintPreview(wxPrintout *printout,
 347                                              wxPrintout *printoutForPrinting,
 348                                              wxPrintData *data)
 349                      : wxPrintPreviewBase(printout, printoutForPrinting, data)
 350 {
 351     DetermineScaling();
 352 }
 353
 354 wxWindowsPrintPreview::~wxWindowsPrintPreview()
 355 {
 356 }
 357
 358 bool wxWindowsPrintPreview::Print(bool interactive)
 359 {
 360     if (!m_printPrintout)
 361         return false;
 362     wxWindowsPrinter printer(&m_printDialogData);
 363     return printer.Print(m_previewFrame, m_printPrintout, interactive);
 364 }
 365
 366 void wxWindowsPrintPreview::DetermineScaling()
 367 {
 368     HDC dc = ::GetDC(NULL);
 369     int screenWidth = ::GetDeviceCaps(dc, HORZSIZE);
 370     int screenYRes = ::GetDeviceCaps(dc, VERTRES);
 371     int logPPIScreenX = ::GetDeviceCaps(dc, LOGPIXELSX);
 372     int logPPIScreenY = ::GetDeviceCaps(dc, LOGPIXELSY);
 373     m_previewPrintout->SetPPIScreen(logPPIScreenX, logPPIScreenY);
 374
 375     ::ReleaseDC(NULL, dc);
 376
 377     // Get a device context for the currently selected printer
 378     wxPrinterDC printerDC(m_printDialogData.GetPrintData());
 379
 380     int printerWidth = 150;
 381     int printerHeight = 250;
 382     int printerXRes = 1500;
 383     int printerYRes = 2500;
 384
 385     dc = GetHdcOf(printerDC);
 386     if ( dc )
 387     {
 388         printerWidth = ::GetDeviceCaps(dc, HORZSIZE);
 389         printerHeight = ::GetDeviceCaps(dc, VERTSIZE);
 390         printerXRes = ::GetDeviceCaps(dc, HORZRES);
 391         printerYRes = ::GetDeviceCaps(dc, VERTRES);
 392
 393         int logPPIPrinterX = ::GetDeviceCaps(dc, LOGPIXELSX);
 394         int logPPIPrinterY = ::GetDeviceCaps(dc, LOGPIXELSY);
 395
 396         m_previewPrintout->SetPPIPrinter(logPPIPrinterX, logPPIPrinterY);
 397         m_previewPrintout->SetPageSizeMM(printerWidth, printerHeight);
 398
 399         if (logPPIPrinterX == 0 || logPPIPrinterY == 0 || printerWidth == 0 || printerHeight == 0)
 400             m_isOk = false;
 401     }
 402     else
 403         m_isOk = false;
 404
 405     m_pageWidth = printerXRes;
 406     m_pageHeight = printerYRes;
 407
 408     // At 100%, the page should look about page-size on the screen.
 409     m_previewScale = (float)((float)screenWidth/(float)printerWidth);
 410     m_previewScale = m_previewScale * (float)((float)screenYRes/(float)printerYRes);
 411 }
 412
 413 /****************************************************************************
 414
 415   FUNCTION: wxAbortProc()
 416
 417     PURPOSE:  Processes messages for the Abort Dialog box
 418
 419 ****************************************************************************/
 420
 421 LONG APIENTRY _EXPORT wxAbortProc(HDC WXUNUSED(hPr), int WXUNUSED(Code))
 422 {
 423     MSG msg;
 424
 425     if (!wxPrinterBase::sm_abortWindow)              /* If the abort dialog isn't up yet */
 426         return(TRUE);
 427
 428     /* Process messages intended for the abort dialog box */
 429
 430     while (!wxPrinterBase::sm_abortIt && PeekMessage(&msg, 0, 0, 0, TRUE))
 431         if (!IsDialogMessage((HWND) wxPrinterBase::sm_abortWindow->GetHWND(), &msg)) {
 432             TranslateMessage(&msg);
 433             DispatchMessage(&msg);
 434         }
 435
 436         /* bAbort is TRUE (return is FALSE) if the user has aborted */
 437
 438         return (!wxPrinterBase::sm_abortIt);
 439 }
 440
 441 #endif
 442     // wxUSE_PRINTING_ARCHITECTURE