src/msw/printwin.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/msw/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 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 // Don't use the Windows printer if we're in wxUniv mode and using
  28 // the PostScript architecture
  29 #if wxUSE_PRINTING_ARCHITECTURE && (!defined(__WXUNIVERSAL__) || !wxUSE_POSTSCRIPT_ARCHITECTURE_IN_MSW)
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/msw/wrapcdlg.h"
  33     #include "wx/window.h"
  34     #include "wx/msw/private.h"
  35     #include "wx/utils.h"
  36     #include "wx/dc.h"
  37     #include "wx/app.h"
  38     #include "wx/msgdlg.h"
  39     #include "wx/intl.h"
  40     #include "wx/log.h"
  41     #include "wx/dcprint.h"
  42 #endif
  43
  44 #include "wx/msw/printwin.h"
  45 #include "wx/msw/printdlg.h"
  46 #include "wx/msw/private.h"
  47 #include "wx/msw/dcprint.h"
  48
  49 #include <stdlib.h>
  50
  51 #ifndef __WIN32__
  52     #include <print.h>
  53 #endif
  54
  55 // ---------------------------------------------------------------------------
  56 // private functions
  57 // ---------------------------------------------------------------------------
  58
  59 LONG APIENTRY _EXPORT wxAbortProc(HDC hPr, int Code);
  60
  61 // ---------------------------------------------------------------------------
  62 // wxWin macros
  63 // ---------------------------------------------------------------------------
  64
  65     IMPLEMENT_DYNAMIC_CLASS(wxWindowsPrinter, wxPrinterBase)
  66     IMPLEMENT_CLASS(wxWindowsPrintPreview, wxPrintPreviewBase)
  67
  68 // ===========================================================================
  69 // implementation
  70 // ===========================================================================
  71
  72 // ---------------------------------------------------------------------------
  73 // Printer
  74 // ---------------------------------------------------------------------------
  75
  76 wxWindowsPrinter::wxWindowsPrinter(wxPrintDialogData *data)
  77                 : wxPrinterBase(data)
  78 {
  79     m_lpAbortProc = (WXFARPROC)wxAbortProc;
  80 }
  81
  82 wxWindowsPrinter::~wxWindowsPrinter()
  83 {
  84     // avoids warning about statement with no effect (FreeProcInstance
  85     // doesn't do anything under Win32)
  86 #if !defined(__WIN32__) && !defined(__NT__)
  87     FreeProcInstance((FARPROC) m_lpAbortProc);
  88 #endif
  89 }
  90
  91 bool wxWindowsPrinter::Print(wxWindow *parent, wxPrintout *printout, bool prompt)
  92 {
  93     sm_abortIt = false;
  94     sm_abortWindow = NULL;
  95
  96     if (!printout)
  97     {
  98         sm_lastError = wxPRINTER_ERROR;
  99         return false;
 100     }
 101
 102     printout->SetIsPreview(false);
 103
 104     if (m_printDialogData.GetMinPage() < 1)
 105         m_printDialogData.SetMinPage(1);
 106     if (m_printDialogData.GetMaxPage() < 1)
 107         m_printDialogData.SetMaxPage(9999);
 108
 109     // Create a suitable device context
 110     wxPrinterDC *dc wxDUMMY_INITIALIZE(NULL);
 111     if (prompt)
 112     {
 113         dc = wxDynamicCast(PrintDialog(parent), wxPrinterDC);
 114         if (!dc)
 115             return false;
 116     }
 117     else
 118     {
 119         dc = new wxPrinterDC(m_printDialogData.GetPrintData());
 120     }
 121
 122     // May have pressed cancel.
 123     if (!dc || !dc->IsOk())
 124     {
 125         if (dc) delete dc;
 126         return false;
 127     }
 128
 129     wxPrinterDCImpl *impl = (wxPrinterDCImpl*) dc->GetImpl();
 130
 131     HDC hdc = ::GetDC(NULL);
 132     int logPPIScreenX = ::GetDeviceCaps(hdc, LOGPIXELSX);
 133     int logPPIScreenY = ::GetDeviceCaps(hdc, LOGPIXELSY);
 134     ::ReleaseDC(NULL, hdc);
 135
 136     int logPPIPrinterX = ::GetDeviceCaps((HDC) impl->GetHDC(), LOGPIXELSX);
 137     int logPPIPrinterY = ::GetDeviceCaps((HDC) impl->GetHDC(), LOGPIXELSY);
 138     if (logPPIPrinterX == 0 || logPPIPrinterY == 0)
 139     {
 140         delete dc;
 141         sm_lastError = wxPRINTER_ERROR;
 142         return false;
 143     }
 144
 145     printout->SetPPIScreen(logPPIScreenX, logPPIScreenY);
 146     printout->SetPPIPrinter(logPPIPrinterX, logPPIPrinterY);
 147
 148     // Set printout parameters
 149     printout->SetDC(dc);
 150
 151     int w, h;
 152     dc->GetSize(&w, &h);
 153     printout->SetPageSizePixels((int)w, (int)h);
 154     printout->SetPaperRectPixels(dc->GetPaperRect());
 155
 156     dc->GetSizeMM(&w, &h);
 157     printout->SetPageSizeMM((int)w, (int)h);
 158
 159     // Create an abort window
 160     wxBusyCursor busyCursor;
 161
 162     printout->OnPreparePrinting();
 163
 164     // Get some parameters from the printout, if defined
 165     int fromPage, toPage;
 166     int minPage, maxPage;
 167     printout->GetPageInfo(&minPage, &maxPage, &fromPage, &toPage);
 168
 169     if (maxPage == 0)
 170     {
 171         sm_lastError = wxPRINTER_ERROR;
 172         return false;
 173     }
 174
 175     // Only set min and max, because from and to have been
 176     // set by the user
 177     m_printDialogData.SetMinPage(minPage);
 178     m_printDialogData.SetMaxPage(maxPage);
 179
 180     wxWindow *win = CreateAbortWindow(parent, printout);
 181     wxYield();
 182
 183 #if defined(__WATCOMC__) || defined(__BORLANDC__) || defined(__GNUWIN32__) || !defined(__WIN32__)
 184 #ifdef STRICT
 185     ::SetAbortProc((HDC) impl->GetHDC(), (ABORTPROC) m_lpAbortProc);
 186 #else
 187     ::SetAbortProc((HDC) impl->GetHDC(), (FARPROC) m_lpAbortProc);
 188 #endif
 189 #else
 190     ::SetAbortProc((HDC) impl->GetHDC(), (int (_stdcall *)
 191         // cast it to right type only if required
 192         // FIXME it's really cdecl and we're casting it to stdcall - either there is
 193         //       something I don't understand or it will crash at first usage
 194 #ifdef STRICT
 195         (HDC, int)
 196 #else
 197         ()
 198 #endif
 199         )m_lpAbortProc);
 200 #endif
 201
 202     if (!win)
 203     {
 204         wxLogDebug(wxT("Could not create an abort dialog."));
 205         sm_lastError = wxPRINTER_ERROR;
 206
 207         delete dc;
 208         return false;
 209     }
 210     sm_abortWindow = win;
 211     sm_abortWindow->Show();
 212     wxSafeYield();
 213
 214     printout->OnBeginPrinting();
 215
 216     sm_lastError = wxPRINTER_NO_ERROR;
 217
 218     int minPageNum = minPage, maxPageNum = maxPage;
 219
 220     if ( !m_printDialogData.GetAllPages() )
 221     {
 222         minPageNum = m_printDialogData.GetFromPage();
 223         maxPageNum = m_printDialogData.GetToPage();
 224     }
 225
 226     int copyCount;
 227     for ( copyCount = 1;
 228           copyCount <= m_printDialogData.GetNoCopies();
 229           copyCount++ )
 230     {
 231         if ( !printout->OnBeginDocument(minPageNum, maxPageNum) )
 232         {
 233             wxLogError(_("Could not start printing."));
 234             sm_lastError = wxPRINTER_ERROR;
 235             break;
 236         }
 237         if (sm_abortIt)
 238         {
 239             sm_lastError = wxPRINTER_CANCELLED;
 240             break;
 241         }
 242
 243         int pn;
 244
 245         for ( pn = minPageNum;
 246               pn <= maxPageNum && printout->HasPage(pn);
 247               pn++ )
 248         {
 249             if ( sm_abortIt )
 250             {
 251                 sm_lastError = wxPRINTER_CANCELLED;
 252                 break;
 253             }
 254
 255             dc->StartPage();
 256             bool cont = printout->OnPrintPage(pn);
 257             dc->EndPage();
 258
 259             if ( !cont )
 260             {
 261                 sm_lastError = wxPRINTER_CANCELLED;
 262                 break;
 263             }
 264         }
 265
 266         printout->OnEndDocument();
 267     }
 268
 269     printout->OnEndPrinting();
 270
 271     if (sm_abortWindow)
 272     {
 273         sm_abortWindow->Show(false);
 274         delete sm_abortWindow;
 275         sm_abortWindow = NULL;
 276     }
 277
 278     delete dc;
 279
 280     return sm_lastError == wxPRINTER_NO_ERROR;
 281 }
 282
 283 wxDC *wxWindowsPrinter::PrintDialog(wxWindow *parent)
 284 {
 285     wxDC *dc = (wxPrinterDC*) NULL;
 286
 287     wxWindowsPrintDialog dialog(parent, & m_printDialogData);
 288     int ret = dialog.ShowModal();
 289
 290     if (ret == wxID_OK)
 291     {
 292         dc = dialog.GetPrintDC();
 293         m_printDialogData = dialog.GetPrintDialogData();
 294         if (dc == NULL)
 295             sm_lastError = wxPRINTER_ERROR;
 296         else
 297             sm_lastError = wxPRINTER_NO_ERROR;
 298     }
 299     else
 300         sm_lastError = wxPRINTER_CANCELLED;
 301
 302     return dc;
 303 }
 304
 305 bool wxWindowsPrinter::Setup(wxWindow *WXUNUSED(parent))
 306 {
 307 #if 0
 308     // We no longer expose that dialog
 309     wxPrintDialog dialog(parent, & m_printDialogData);
 310     dialog.GetPrintDialogData().SetSetupDialog(true);
 311
 312     int ret = dialog.ShowModal();
 313
 314     if (ret == wxID_OK)
 315     {
 316         m_printDialogData = dialog.GetPrintDialogData();
 317     }
 318
 319     return (ret == wxID_OK);
 320 #else
 321     return false;
 322 #endif
 323 }
 324
 325 /*
 326 * Print preview
 327 */
 328
 329 wxWindowsPrintPreview::wxWindowsPrintPreview(wxPrintout *printout,
 330                                              wxPrintout *printoutForPrinting,
 331                                              wxPrintDialogData *data)
 332                      : wxPrintPreviewBase(printout, printoutForPrinting, data)
 333 {
 334     DetermineScaling();
 335 }
 336
 337 wxWindowsPrintPreview::wxWindowsPrintPreview(wxPrintout *printout,
 338                                              wxPrintout *printoutForPrinting,
 339                                              wxPrintData *data)
 340                      : wxPrintPreviewBase(printout, printoutForPrinting, data)
 341 {
 342     DetermineScaling();
 343 }
 344
 345 wxWindowsPrintPreview::~wxWindowsPrintPreview()
 346 {
 347 }
 348
 349 bool wxWindowsPrintPreview::Print(bool interactive)
 350 {
 351     if (!m_printPrintout)
 352         return false;
 353     wxWindowsPrinter printer(&m_printDialogData);
 354     return printer.Print(m_previewFrame, m_printPrintout, interactive);
 355 }
 356
 357 void wxWindowsPrintPreview::DetermineScaling()
 358 {
 359     ScreenHDC dc;
 360     int logPPIScreenX = ::GetDeviceCaps(dc, LOGPIXELSX);
 361     int logPPIScreenY = ::GetDeviceCaps(dc, LOGPIXELSY);
 362     m_previewPrintout->SetPPIScreen(logPPIScreenX, logPPIScreenY);
 363
 364     // Get a device context for the currently selected printer
 365     wxPrinterDC printerDC(m_printDialogData.GetPrintData());
 366
 367     int printerWidthMM;
 368     int printerHeightMM;
 369     int printerXRes;
 370     int printerYRes;
 371     int logPPIPrinterX;
 372     int logPPIPrinterY;
 373
 374     wxRect paperRect;
 375
 376     if ( printerDC.IsOk() )
 377     {
 378         wxPrinterDCImpl *impl = (wxPrinterDCImpl*) printerDC.GetImpl();
 379         HDC dc = GetHdcOf(*impl);
 380         printerWidthMM = ::GetDeviceCaps(dc, HORZSIZE);
 381         printerHeightMM = ::GetDeviceCaps(dc, VERTSIZE);
 382         printerXRes = ::GetDeviceCaps(dc, HORZRES);
 383         printerYRes = ::GetDeviceCaps(dc, VERTRES);
 384         logPPIPrinterX = ::GetDeviceCaps(dc, LOGPIXELSX);
 385         logPPIPrinterY = ::GetDeviceCaps(dc, LOGPIXELSY);
 386
 387         paperRect = printerDC.GetPaperRect();
 388
 389         if ( logPPIPrinterX == 0 ||
 390                 logPPIPrinterY == 0 ||
 391                     printerWidthMM == 0 ||
 392                         printerHeightMM == 0 )
 393         {
 394             m_isOk = false;
 395         }
 396     }
 397     else
 398     {
 399         // use some defaults
 400         printerWidthMM = 150;
 401         printerHeightMM = 250;
 402         printerXRes = 1500;
 403         printerYRes = 2500;
 404         logPPIPrinterX = 600;
 405         logPPIPrinterY = 600;
 406
 407         paperRect = wxRect(0, 0, printerXRes, printerYRes);
 408         m_isOk = false;
 409     }
 410     m_pageWidth = printerXRes;
 411     m_pageHeight = printerYRes;
 412     m_previewPrintout->SetPageSizePixels(printerXRes, printerYRes);
 413     m_previewPrintout->SetPageSizeMM(printerWidthMM, printerHeightMM);
 414     m_previewPrintout->SetPaperRectPixels(paperRect);
 415     m_previewPrintout->SetPPIPrinter(logPPIPrinterX, logPPIPrinterY);
 416
 417     // At 100%, the page should look about page-size on the screen.
 418     m_previewScaleX = float(logPPIScreenX) / logPPIPrinterX;
 419     m_previewScaleY = float(logPPIScreenY) / logPPIPrinterY;
 420 }
 421
 422 /****************************************************************************
 423
 424   FUNCTION: wxAbortProc()
 425
 426     PURPOSE:  Processes messages for the Abort Dialog box
 427
 428 ****************************************************************************/
 429
 430 LONG APIENTRY _EXPORT wxAbortProc(HDC WXUNUSED(hPr), int WXUNUSED(Code))
 431 {
 432     MSG msg;
 433
 434     if (!wxPrinterBase::sm_abortWindow)              /* If the abort dialog isn't up yet */
 435         return(TRUE);
 436
 437     /* Process messages intended for the abort dialog box */
 438
 439     while (!wxPrinterBase::sm_abortIt && ::PeekMessage(&msg, 0, 0, 0, TRUE))
 440         if (!IsDialogMessage((HWND) wxPrinterBase::sm_abortWindow->GetHWND(), &msg)) {
 441             TranslateMessage(&msg);
 442             DispatchMessage(&msg);
 443         }
 444
 445     /* bAbort is TRUE (return is FALSE) if the user has aborted */
 446
 447     return !wxPrinterBase::sm_abortIt;
 448 }
 449
 450 #endif
 451     // wxUSE_PRINTING_ARCHITECTURE