src/generic/printps.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        printps.cpp
   3 // Purpose:     Postscript print/preview framework
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "printps.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 #if wxUSE_PRINTING_ARCHITECTURE
  34
  35 #ifndef WX_PRECOMP
  36     #include "wx/utils.h"
  37     #include "wx/dc.h"
  38     #include "wx/app.h"
  39     #include "wx/msgdlg.h"
  40     #include "wx/intl.h"
  41     #include "wx/progdlg.h"
  42 #endif
  43
  44 #include "wx/generic/printps.h"
  45 #include "wx/dcprint.h"
  46 #include "wx/printdlg.h"
  47 #include "wx/generic/prntdlgg.h"
  48 #include "wx/generic/progdlgg.h"
  49 #include "wx/paper.h"
  50
  51 #include <stdlib.h>
  52
  53 // ----------------------------------------------------------------------------
  54 // wxWin macros
  55 // ----------------------------------------------------------------------------
  56
  57     IMPLEMENT_DYNAMIC_CLASS(wxPostScriptPrinter, wxPrinterBase)
  58     IMPLEMENT_CLASS(wxPostScriptPrintPreview, wxPrintPreviewBase)
  59
  60 // ============================================================================
  61 // implementation
  62 // ============================================================================
  63
  64 // ----------------------------------------------------------------------------
  65 // Printer
  66 // ----------------------------------------------------------------------------
  67
  68 wxPostScriptPrinter::wxPostScriptPrinter(wxPrintDialogData *data)
  69                    : wxPrinterBase(data)
  70 {
  71 }
  72
  73 wxPostScriptPrinter::~wxPostScriptPrinter()
  74 {
  75 }
  76
  77 bool wxPostScriptPrinter::Print(wxWindow *parent, wxPrintout *printout, bool prompt)
  78 {
  79     sm_abortIt = FALSE;
  80     sm_abortWindow = (wxWindow *) NULL;
  81
  82     if (!printout)
  83     {
  84         sm_lastError = wxPRINTER_ERROR;
  85         return FALSE;
  86     }
  87
  88     printout->SetIsPreview(FALSE);
  89
  90     // 4/9/99, JACS: this is a silly place to allow preparation, considering
  91     // the DC and no parameters have been set in the printout object.
  92     // Moved further down.
  93
  94     // printout->OnPreparePrinting();
  95
  96     // Get some parameters from the printout, if defined
  97     int fromPage, toPage;
  98     int minPage, maxPage;
  99     printout->GetPageInfo(&minPage, &maxPage, &fromPage, &toPage);
 100
 101     if (maxPage == 0)
 102     {
 103         sm_lastError = wxPRINTER_ERROR;
 104         return FALSE;
 105     }
 106
 107     m_printDialogData.SetMinPage(minPage);
 108     m_printDialogData.SetMaxPage(maxPage);
 109     if (fromPage != 0)
 110         m_printDialogData.SetFromPage(fromPage);
 111     if (toPage != 0)
 112         m_printDialogData.SetToPage(toPage);
 113
 114     if (minPage != 0)
 115     {
 116         m_printDialogData.EnablePageNumbers(TRUE);
 117         if (m_printDialogData.GetFromPage() < m_printDialogData.GetMinPage())
 118             m_printDialogData.SetFromPage(m_printDialogData.GetMinPage());
 119         else if (m_printDialogData.GetFromPage() > m_printDialogData.GetMaxPage())
 120             m_printDialogData.SetFromPage(m_printDialogData.GetMaxPage());
 121         if (m_printDialogData.GetToPage() > m_printDialogData.GetMaxPage())
 122             m_printDialogData.SetToPage(m_printDialogData.GetMaxPage());
 123         else if (m_printDialogData.GetToPage() < m_printDialogData.GetMinPage())
 124             m_printDialogData.SetToPage(m_printDialogData.GetMinPage());
 125     }
 126     else
 127         m_printDialogData.EnablePageNumbers(FALSE);
 128
 129
 130     // Create a suitable device context
 131     wxDC *dc = (wxDC *) NULL;
 132     if (prompt)
 133     {
 134         dc = PrintDialog(parent);
 135         if (!dc)
 136             return FALSE;
 137     }
 138     else
 139     {
 140         dc = new wxPostScriptDC(GetPrintDialogData().GetPrintData());
 141     }
 142
 143     // May have pressed cancel.
 144     if (!dc || !dc->Ok())
 145     {
 146         if (dc) delete dc;
 147         sm_lastError = wxPRINTER_ERROR;
 148         return FALSE;
 149     }
 150
 151     wxSize ScreenPixels = wxGetDisplaySize();
 152     wxSize ScreenMM = wxGetDisplaySizeMM();
 153
 154     printout->SetPPIScreen( (int) ((ScreenPixels.GetWidth() * 25.4) / ScreenMM.GetWidth()),
 155                             (int) ((ScreenPixels.GetHeight() * 25.4) / ScreenMM.GetHeight()) );
 156     printout->SetPPIPrinter( wxPostScriptDC::GetResolution(),
 157                              wxPostScriptDC::GetResolution() );
 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     dc->GetSizeMM(&w, &h);
 166     printout->SetPageSizeMM((int)w, (int)h);
 167
 168     // Create an abort window
 169     wxBeginBusyCursor();
 170
 171     printout->OnPreparePrinting();
 172
 173     int
 174        pagesPerCopy = m_printDialogData.GetToPage()-m_printDialogData.GetFromPage()+1,
 175        totalPages = pagesPerCopy * m_printDialogData.GetNoCopies(),
 176        printedPages = 0;
 177     // Open the progress bar dialog
 178     wxProgressDialog *progressDialog = new wxProgressDialog (
 179        printout->GetTitle(),
 180        _("Printing..."),
 181        totalPages,
 182        parent,
 183        wxPD_CAN_ABORT|wxPD_AUTO_HIDE|wxPD_APP_MODAL);
 184
 185     printout->OnBeginPrinting();
 186
 187     sm_lastError = wxPRINTER_NO_ERROR;
 188
 189     bool keepGoing = TRUE;
 190
 191     int copyCount;
 192     for (copyCount = 1; copyCount <= m_printDialogData.GetNoCopies(); copyCount ++)
 193     {
 194         if (!printout->OnBeginDocument(m_printDialogData.GetFromPage(), m_printDialogData.GetToPage()))
 195         {
 196             wxEndBusyCursor();
 197             wxLogError(_("Could not start printing."));
 198             sm_lastError = wxPRINTER_ERROR;
 199             break;
 200         }
 201         if (sm_abortIt)
 202         {
 203             sm_lastError = wxPRINTER_CANCELLED;
 204             break;
 205         }
 206
 207         int pn;
 208         for (pn = m_printDialogData.GetFromPage(); keepGoing && (pn <= m_printDialogData.GetToPage()) && printout->HasPage(pn);
 209         pn++)
 210         {
 211             if (sm_abortIt)
 212             {
 213                 keepGoing = FALSE;
 214                 sm_lastError = wxPRINTER_CANCELLED;
 215                 break;
 216             }
 217             else
 218             {
 219                wxString msg;
 220                msg.Printf(_("Printing page %d..."), printedPages+1);
 221                if(progressDialog->Update(printedPages++, msg))
 222                {
 223                   dc->StartPage();
 224                   printout->OnPrintPage(pn);
 225                   dc->EndPage();
 226                }
 227                else
 228                {
 229                   sm_abortIt = TRUE;
 230                   sm_lastError = wxPRINTER_CANCELLED;
 231                   keepGoing = FALSE;
 232                }
 233             }
 234             wxYield();
 235         }
 236         printout->OnEndDocument();
 237     }
 238
 239     printout->OnEndPrinting();
 240     delete progressDialog;
 241
 242     wxEndBusyCursor();
 243
 244     delete dc;
 245
 246     return (sm_lastError == wxPRINTER_NO_ERROR);
 247 }
 248
 249 wxDC* wxPostScriptPrinter::PrintDialog(wxWindow *parent)
 250 {
 251     wxDC* dc = (wxDC*) NULL;
 252     wxGenericPrintDialog* dialog = new wxGenericPrintDialog(parent, & m_printDialogData);
 253     int ret = dialog->ShowModal() ;
 254     if (ret == wxID_OK)
 255     {
 256         dc = dialog->GetPrintDC();
 257         m_printDialogData = dialog->GetPrintDialogData();
 258         if (dc == NULL)
 259             sm_lastError = wxPRINTER_ERROR;
 260         else
 261             sm_lastError = wxPRINTER_NO_ERROR;
 262     }
 263     else
 264         sm_lastError = wxPRINTER_CANCELLED;
 265
 266     dialog->Destroy();
 267
 268     return dc;
 269 }
 270
 271 bool wxPostScriptPrinter::Setup(wxWindow *parent)
 272 {
 273     wxGenericPrintDialog* dialog = new wxGenericPrintDialog(parent, & m_printDialogData);
 274     dialog->GetPrintDialogData().SetSetupDialog(TRUE);
 275
 276     int ret = dialog->ShowModal();
 277
 278     if (ret == wxID_OK)
 279     {
 280         m_printDialogData = dialog->GetPrintDialogData();
 281     }
 282
 283     dialog->Destroy();
 284
 285     return (ret == wxID_OK);
 286 }
 287
 288 // ----------------------------------------------------------------------------
 289 // Print preview
 290 // ----------------------------------------------------------------------------
 291
 292 void wxPostScriptPrintPreview::Init(wxPrintout * WXUNUSED(printout),
 293                                     wxPrintout * WXUNUSED(printoutForPrinting))
 294 {
 295     // Have to call it here since base constructor can't call it
 296     DetermineScaling();
 297 }
 298
 299 wxPostScriptPrintPreview::wxPostScriptPrintPreview(wxPrintout *printout,
 300                                                    wxPrintout *printoutForPrinting,
 301                                                    wxPrintDialogData *data)
 302                         : wxPrintPreviewBase(printout, printoutForPrinting, data)
 303 {
 304     Init(printout, printoutForPrinting);
 305 }
 306
 307 wxPostScriptPrintPreview::wxPostScriptPrintPreview(wxPrintout *printout,
 308                                                    wxPrintout *printoutForPrinting,
 309                                                    wxPrintData *data)
 310                         : wxPrintPreviewBase(printout, printoutForPrinting, data)
 311 {
 312     Init(printout, printoutForPrinting);
 313 }
 314
 315 wxPostScriptPrintPreview::~wxPostScriptPrintPreview()
 316 {
 317 }
 318
 319 bool wxPostScriptPrintPreview::Print(bool interactive)
 320 {
 321     if (!m_printPrintout)
 322         return FALSE;
 323     wxPostScriptPrinter printer(& m_printDialogData);
 324     return printer.Print(m_previewFrame, m_printPrintout, interactive);
 325 }
 326
 327 void wxPostScriptPrintPreview::DetermineScaling()
 328 {
 329     wxPaperSize paperType = m_printDialogData.GetPrintData().GetPaperId();
 330     if (paperType == wxPAPER_NONE)
 331         paperType = wxPAPER_NONE;
 332
 333     wxPrintPaperType *paper = wxThePrintPaperDatabase->FindPaperType(paperType);
 334     if (!paper)
 335         paper = wxThePrintPaperDatabase->FindPaperType(wxPAPER_A4);
 336
 337     if (paper)
 338     {
 339         wxSize ScreenPixels = wxGetDisplaySize();
 340         wxSize ScreenMM = wxGetDisplaySizeMM();
 341
 342         m_previewPrintout->SetPPIScreen( (int) ((ScreenPixels.GetWidth() * 25.4) / ScreenMM.GetWidth()),
 343                                          (int) ((ScreenPixels.GetHeight() * 25.4) / ScreenMM.GetHeight()) );
 344         m_previewPrintout->SetPPIPrinter(wxPostScriptDC::GetResolution(), wxPostScriptDC::GetResolution());
 345
 346         wxSize sizeDevUnits(paper->GetSizeDeviceUnits());
 347         sizeDevUnits.x = (wxCoord)((float)sizeDevUnits.x * wxPostScriptDC::GetResolution() / 72.0);
 348         sizeDevUnits.y = (wxCoord)((float)sizeDevUnits.y * wxPostScriptDC::GetResolution() / 72.0);
 349         wxSize sizeTenthsMM(paper->GetSize());
 350         wxSize sizeMM(sizeTenthsMM.x / 10, sizeTenthsMM.y / 10);
 351
 352         // If in landscape mode, we need to swap the width and height.
 353         if ( m_printDialogData.GetPrintData().GetOrientation() == wxLANDSCAPE )
 354         {
 355             m_pageWidth = sizeDevUnits.y;
 356             m_pageHeight = sizeDevUnits.x;
 357             m_previewPrintout->SetPageSizeMM(sizeMM.y, sizeMM.x);
 358             m_previewPrintout->SetPageSizePixels(m_pageWidth, m_pageHeight);
 359         }
 360         else
 361         {
 362             m_pageWidth = sizeDevUnits.x;
 363             m_pageHeight = sizeDevUnits.y;
 364             m_previewPrintout->SetPageSizeMM(sizeMM.x, sizeMM.y);
 365             m_previewPrintout->SetPageSizePixels(m_pageWidth, m_pageHeight);
 366         }
 367
 368         // At 100%, the page should look about page-size on the screen.
 369         m_previewScale = (float)0.8 * 72.0 / (float)wxPostScriptDC::GetResolution();
 370     }
 371 }
 372
 373 #endif