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(TRUE);
 223     wxSafeYield();
 224
 225     printout->OnBeginPrinting();
 226
 227     sm_lastError = wxPRINTER_NO_ERROR;
 228
 229     int copyCount;
 230     for ( copyCount = 1;
 231           copyCount <= m_printDialogData.GetNoCopies();
 232           copyCount++ )
 233     {
 234         if (!printout->OnBeginDocument(m_printDialogData.GetFromPage(), m_printDialogData.GetToPage()))
 235         {
 236             wxEndBusyCursor();
 237             wxLogError(_("Could not start printing."));
 238             sm_lastError = wxPRINTER_ERROR;
 239             break;
 240         }
 241         if (sm_abortIt)
 242         {
 243             sm_lastError = wxPRINTER_CANCELLED;
 244             break;
 245         }
 246
 247         int pn;
 248         for ( pn = m_printDialogData.GetFromPage();
 249               pn <= m_printDialogData.GetToPage() && printout->HasPage(pn);
 250               pn++ )
 251         {
 252             if ( sm_abortIt )
 253             {
 254                 sm_lastError = wxPRINTER_CANCELLED;
 255                 break;
 256             }
 257
 258             dc->StartPage();
 259             bool cont = printout->OnPrintPage(pn);
 260             dc->EndPage();
 261
 262             if ( !cont )
 263             {
 264                 sm_lastError = wxPRINTER_CANCELLED;
 265                 break;
 266             }
 267         }
 268
 269         printout->OnEndDocument();
 270     }
 271
 272     printout->OnEndPrinting();
 273
 274     if (sm_abortWindow)
 275     {
 276         sm_abortWindow->Show(FALSE);
 277         delete sm_abortWindow;
 278         sm_abortWindow = NULL;
 279     }
 280
 281     wxEndBusyCursor();
 282
 283     delete dc;
 284
 285     return (sm_lastError == wxPRINTER_NO_ERROR);
 286 }
 287
 288 wxDC* wxWindowsPrinter::PrintDialog(wxWindow *parent)
 289 {
 290     wxDC* dc = (wxDC*) NULL;
 291
 292     wxPrintDialog dialog(parent, & m_printDialogData);
 293     int ret = dialog.ShowModal();
 294
 295     if (ret == wxID_OK)
 296     {
 297         dc = dialog.GetPrintDC();
 298         m_printDialogData = dialog.GetPrintDialogData();
 299         if (dc == NULL)
 300             sm_lastError = wxPRINTER_ERROR;
 301         else
 302             sm_lastError = wxPRINTER_NO_ERROR;
 303     }
 304     else
 305         sm_lastError = wxPRINTER_CANCELLED;
 306
 307     return dc;
 308 }
 309
 310 bool wxWindowsPrinter::Setup(wxWindow *parent)
 311 {
 312     wxPrintDialog dialog(parent, & m_printDialogData);
 313     dialog.GetPrintDialogData().SetSetupDialog(TRUE);
 314
 315     int ret = dialog.ShowModal();
 316
 317     if (ret == wxID_OK)
 318     {
 319         m_printDialogData = dialog.GetPrintDialogData();
 320     }
 321
 322     return (ret == wxID_OK);
 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     HDC dc = ::GetDC(NULL);
 360     int screenWidth = ::GetDeviceCaps(dc, HORZSIZE);
 361     int screenYRes = ::GetDeviceCaps(dc, VERTRES);
 362     int logPPIScreenX = ::GetDeviceCaps(dc, LOGPIXELSX);
 363     int logPPIScreenY = ::GetDeviceCaps(dc, LOGPIXELSY);
 364     m_previewPrintout->SetPPIScreen(logPPIScreenX, logPPIScreenY);
 365
 366     ::ReleaseDC(NULL, dc);
 367
 368     // Get a device context for the currently selected printer
 369     wxPrinterDC printerDC(m_printDialogData.GetPrintData());
 370
 371     int printerWidth = 150;
 372     int printerHeight = 250;
 373     int printerXRes = 1500;
 374     int printerYRes = 2500;
 375
 376     dc = GetHdcOf(printerDC);
 377     if ( dc )
 378     {
 379         printerWidth = ::GetDeviceCaps(dc, HORZSIZE);
 380         printerHeight = ::GetDeviceCaps(dc, VERTSIZE);
 381         printerXRes = ::GetDeviceCaps(dc, HORZRES);
 382         printerYRes = ::GetDeviceCaps(dc, VERTRES);
 383
 384         int logPPIPrinterX = ::GetDeviceCaps(dc, LOGPIXELSX);
 385         int logPPIPrinterY = ::GetDeviceCaps(dc, LOGPIXELSY);
 386
 387         m_previewPrintout->SetPPIPrinter(logPPIPrinterX, logPPIPrinterY);
 388         m_previewPrintout->SetPageSizeMM(printerWidth, printerHeight);
 389
 390         if (logPPIPrinterX == 0 || logPPIPrinterY == 0 || printerWidth == 0 || printerHeight == 0)
 391             m_isOk = FALSE;
 392     }
 393     else
 394         m_isOk = FALSE;
 395
 396     m_pageWidth = printerXRes;
 397     m_pageHeight = printerYRes;
 398
 399     // At 100%, the page should look about page-size on the screen.
 400     m_previewScale = (float)((float)screenWidth/(float)printerWidth);
 401     m_previewScale = m_previewScale * (float)((float)screenYRes/(float)printerYRes);
 402 }
 403
 404 /****************************************************************************
 405
 406   FUNCTION: wxAbortProc()
 407
 408     PURPOSE:  Processes messages for the Abort Dialog box
 409
 410 ****************************************************************************/
 411
 412 LONG APIENTRY _EXPORT wxAbortProc(HDC WXUNUSED(hPr), int WXUNUSED(Code))
 413 {
 414     MSG msg;
 415
 416     if (!wxPrinterBase::sm_abortWindow)              /* If the abort dialog isn't up yet */
 417         return(TRUE);
 418
 419     /* Process messages intended for the abort dialog box */
 420
 421     while (!wxPrinterBase::sm_abortIt && PeekMessage(&msg, 0, 0, 0, TRUE))
 422         if (!IsDialogMessage((HWND) wxPrinterBase::sm_abortWindow->GetHWND(), &msg)) {
 423             TranslateMessage(&msg);
 424             DispatchMessage(&msg);
 425         }
 426
 427         /* bAbort is TRUE (return is FALSE) if the user has aborted */
 428
 429         return (!wxPrinterBase::sm_abortIt);
 430 }
 431
 432 #endif
 433     // wxUSE_PRINTING_ARCHITECTURE