src/generic/printps.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/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
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifdef __BORLANDC__
  16     #pragma hdrstop
  17 #endif
  18
  19 // ============================================================================
  20 // declarations
  21 // ============================================================================
  22
  23 // ----------------------------------------------------------------------------
  24 // headers
  25 // ----------------------------------------------------------------------------
  26
  27 #if wxUSE_PRINTING_ARCHITECTURE && wxUSE_POSTSCRIPT && (!defined(__WXMSW__) || wxUSE_POSTSCRIPT_ARCHITECTURE_IN_MSW)
  28
  29 #ifndef WX_PRECOMP
  30     #include "wx/utils.h"
  31     #include "wx/dc.h"
  32     #include "wx/app.h"
  33     #include "wx/msgdlg.h"
  34     #include "wx/intl.h"
  35     #include "wx/progdlg.h"
  36     #include "wx/log.h"
  37     #include "wx/dcprint.h"
  38 #endif
  39
  40 #include "wx/generic/printps.h"
  41 #include "wx/printdlg.h"
  42 #include "wx/generic/prntdlgg.h"
  43 #include "wx/progdlg.h"
  44 #include "wx/paper.h"
  45
  46 #include <stdlib.h>
  47
  48 // ----------------------------------------------------------------------------
  49 // wxWin macros
  50 // ----------------------------------------------------------------------------
  51
  52     IMPLEMENT_DYNAMIC_CLASS(wxPostScriptPrinter, wxPrinterBase)
  53     IMPLEMENT_CLASS(wxPostScriptPrintPreview, wxPrintPreviewBase)
  54
  55 // ============================================================================
  56 // implementation
  57 // ============================================================================
  58
  59 // ----------------------------------------------------------------------------
  60 // Printer
  61 // ----------------------------------------------------------------------------
  62
  63 wxPostScriptPrinter::wxPostScriptPrinter(wxPrintDialogData *data)
  64                    : wxPrinterBase(data)
  65 {
  66 }
  67
  68 wxPostScriptPrinter::~wxPostScriptPrinter()
  69 {
  70 }
  71
  72 bool wxPostScriptPrinter::Print(wxWindow *parent, wxPrintout *printout, bool prompt)
  73 {
  74     sm_abortIt = false;
  75     sm_abortWindow = NULL;
  76
  77     if (!printout)
  78     {
  79         sm_lastError = wxPRINTER_ERROR;
  80         return false;
  81     }
  82
  83     if (m_printDialogData.GetMinPage() < 1)
  84         m_printDialogData.SetMinPage(1);
  85     if (m_printDialogData.GetMaxPage() < 1)
  86         m_printDialogData.SetMaxPage(9999);
  87
  88     // Create a suitable device context
  89     wxDC *dc;
  90     if (prompt)
  91     {
  92         dc = PrintDialog(parent);
  93         if (!dc)
  94             return false;
  95     }
  96     else
  97     {
  98         dc = new wxPostScriptDC(GetPrintDialogData().GetPrintData());
  99     }
 100
 101     // May have pressed cancel.
 102     if (!dc || !dc->IsOk())
 103     {
 104         if (dc) delete dc;
 105         sm_lastError = wxPRINTER_ERROR;
 106         return false;
 107     }
 108
 109     wxSize ScreenPixels = wxGetDisplaySize();
 110     wxSize ScreenMM = wxGetDisplaySizeMM();
 111
 112     printout->SetPPIScreen( (int) ((ScreenPixels.GetWidth() * 25.4) / ScreenMM.GetWidth()),
 113                             (int) ((ScreenPixels.GetHeight() * 25.4) / ScreenMM.GetHeight()) );
 114     printout->SetPPIPrinter( dc->GetResolution(),
 115                              dc->GetResolution() );
 116
 117     // Set printout parameters
 118     printout->SetDC(dc);
 119
 120     int w, h;
 121     dc->GetSize(&w, &h);
 122     printout->SetPageSizePixels((int)w, (int)h);
 123     printout->SetPaperRectPixels(wxRect(0, 0, w, h));
 124     int mw, mh;
 125     dc->GetSizeMM(&mw, &mh);
 126     printout->SetPageSizeMM((int)mw, (int)mh);
 127
 128     // Create an abort window
 129     wxBeginBusyCursor();
 130
 131     printout->OnPreparePrinting();
 132
 133     // Get some parameters from the printout, if defined
 134     int fromPage, toPage;
 135     int minPage, maxPage;
 136     printout->GetPageInfo(&minPage, &maxPage, &fromPage, &toPage);
 137
 138     if (maxPage == 0)
 139     {
 140         sm_lastError = wxPRINTER_ERROR;
 141         wxEndBusyCursor();
 142         return false;
 143     }
 144
 145     // Only set min and max, because from and to have been
 146     // set by the user
 147     m_printDialogData.SetMinPage(minPage);
 148     m_printDialogData.SetMaxPage(maxPage);
 149
 150     if (m_printDialogData.GetFromPage() < minPage)
 151         m_printDialogData.SetFromPage( minPage );
 152     if (m_printDialogData.GetToPage() > maxPage)
 153         m_printDialogData.SetToPage( maxPage );
 154
 155     int
 156        pagesPerCopy = m_printDialogData.GetToPage()-m_printDialogData.GetFromPage()+1,
 157        totalPages = pagesPerCopy * m_printDialogData.GetNoCopies(),
 158        printedPages = 0;
 159     // Open the progress bar dialog
 160     wxProgressDialog *progressDialog = new wxProgressDialog (
 161        printout->GetTitle(),
 162        _("Printing..."),
 163        totalPages,
 164        parent,
 165        wxPD_CAN_ABORT|wxPD_AUTO_HIDE|wxPD_APP_MODAL);
 166
 167     printout->OnBeginPrinting();
 168
 169     sm_lastError = wxPRINTER_NO_ERROR;
 170
 171     bool keepGoing = true;
 172
 173     int copyCount;
 174     for (copyCount = 1; copyCount <= m_printDialogData.GetNoCopies(); copyCount ++)
 175     {
 176         if (!printout->OnBeginDocument(m_printDialogData.GetFromPage(), m_printDialogData.GetToPage()))
 177         {
 178             wxEndBusyCursor();
 179             wxLogError(_("Could not start printing."));
 180             sm_lastError = wxPRINTER_ERROR;
 181             break;
 182         }
 183         if (sm_abortIt)
 184         {
 185             sm_lastError = wxPRINTER_CANCELLED;
 186             break;
 187         }
 188
 189         int pn;
 190         for (pn = m_printDialogData.GetFromPage(); keepGoing && (pn <= m_printDialogData.GetToPage()) && printout->HasPage(pn);
 191         pn++)
 192         {
 193             if (sm_abortIt)
 194             {
 195                 keepGoing = false;
 196                 sm_lastError = wxPRINTER_CANCELLED;
 197                 break;
 198             }
 199             else
 200             {
 201                wxString msg;
 202                msg.Printf(_("Printing page %d..."), printedPages+1);
 203                if(progressDialog->Update(printedPages++, msg))
 204                {
 205                   dc->StartPage();
 206                   printout->OnPrintPage(pn);
 207                   dc->EndPage();
 208                }
 209                else
 210                {
 211                   sm_abortIt = true;
 212                   sm_lastError = wxPRINTER_CANCELLED;
 213                   keepGoing = false;
 214                }
 215             }
 216             wxYield();
 217         }
 218         printout->OnEndDocument();
 219     }
 220
 221     printout->OnEndPrinting();
 222     delete progressDialog;
 223
 224     wxEndBusyCursor();
 225
 226     delete dc;
 227
 228     return (sm_lastError == wxPRINTER_NO_ERROR);
 229 }
 230
 231 wxDC* wxPostScriptPrinter::PrintDialog(wxWindow *parent)
 232 {
 233     wxDC* dc = NULL;
 234
 235     wxGenericPrintDialog dialog( parent, &m_printDialogData );
 236     if (dialog.ShowModal() == wxID_OK)
 237     {
 238         dc = dialog.GetPrintDC();
 239         m_printDialogData = dialog.GetPrintDialogData();
 240
 241         if (dc == NULL)
 242             sm_lastError = wxPRINTER_ERROR;
 243         else
 244             sm_lastError = wxPRINTER_NO_ERROR;
 245     }
 246     else
 247         sm_lastError = wxPRINTER_CANCELLED;
 248
 249     return dc;
 250 }
 251
 252 bool wxPostScriptPrinter::Setup(wxWindow *WXUNUSED(parent))
 253 {
 254 #if 0
 255     wxGenericPrintDialog* dialog = new wxGenericPrintDialog(parent, & m_printDialogData);
 256     dialog->GetPrintDialogData().SetSetupDialog(true);
 257
 258     int ret = dialog->ShowModal();
 259
 260     if (ret == wxID_OK)
 261     {
 262         m_printDialogData = dialog->GetPrintDialogData();
 263     }
 264
 265     dialog->Destroy();
 266
 267     return (ret == wxID_OK);
 268 #endif
 269
 270     return false;
 271 }
 272
 273 // ----------------------------------------------------------------------------
 274 // Print preview
 275 // ----------------------------------------------------------------------------
 276
 277 void wxPostScriptPrintPreview::Init(wxPrintout * WXUNUSED(printout),
 278                                     wxPrintout * WXUNUSED(printoutForPrinting))
 279 {
 280     // Have to call it here since base constructor can't call it
 281     DetermineScaling();
 282 }
 283
 284 wxPostScriptPrintPreview::wxPostScriptPrintPreview(wxPrintout *printout,
 285                                                    wxPrintout *printoutForPrinting,
 286                                                    wxPrintDialogData *data)
 287                         : wxPrintPreviewBase(printout, printoutForPrinting, data)
 288 {
 289     Init(printout, printoutForPrinting);
 290 }
 291
 292 wxPostScriptPrintPreview::wxPostScriptPrintPreview(wxPrintout *printout,
 293                                                    wxPrintout *printoutForPrinting,
 294                                                    wxPrintData *data)
 295                         : wxPrintPreviewBase(printout, printoutForPrinting, data)
 296 {
 297     Init(printout, printoutForPrinting);
 298 }
 299
 300 wxPostScriptPrintPreview::~wxPostScriptPrintPreview()
 301 {
 302 }
 303
 304 bool wxPostScriptPrintPreview::Print(bool interactive)
 305 {
 306     if (!m_printPrintout)
 307         return false;
 308
 309     // Assume that on Unix, the preview may use the PostScript
 310     // (generic) version, but printing using the native system is required.
 311     // TODO: make a generic print preview class from which wxPostScriptPrintPreview
 312     // is derived.
 313 #ifdef __UNIX__
 314     wxPrinter printer(& m_printDialogData);
 315 #else
 316     wxPostScriptPrinter printer(& m_printDialogData);
 317 #endif
 318     return printer.Print(m_previewFrame, m_printPrintout, interactive);
 319 }
 320
 321 void wxPostScriptPrintPreview::DetermineScaling()
 322 {
 323     wxPaperSize paperType = m_printDialogData.GetPrintData().GetPaperId();
 324     if (paperType == wxPAPER_NONE)
 325         paperType = wxPAPER_NONE;
 326
 327     wxPrintPaperType *paper = wxThePrintPaperDatabase->FindPaperType(paperType);
 328     if (!paper)
 329         paper = wxThePrintPaperDatabase->FindPaperType(wxPAPER_A4);
 330
 331     if (paper)
 332     {
 333         int resolution = 600;  // TODO, this is correct, but get this from wxPSDC somehow
 334
 335         const wxSize screenPPI = wxGetDisplayPPI();
 336         int logPPIScreenX = screenPPI.GetWidth();
 337         int logPPIScreenY = screenPPI.GetHeight();
 338         int logPPIPrinterX = resolution;
 339         int logPPIPrinterY = resolution;
 340
 341         m_previewPrintout->SetPPIScreen( logPPIScreenX, logPPIScreenY );
 342         m_previewPrintout->SetPPIPrinter( logPPIPrinterX, logPPIPrinterY );
 343
 344         wxSize sizeDevUnits(paper->GetSizeDeviceUnits());
 345         sizeDevUnits.x = (wxCoord)((float)sizeDevUnits.x * resolution / 72.0);
 346         sizeDevUnits.y = (wxCoord)((float)sizeDevUnits.y * resolution / 72.0);
 347         wxSize sizeTenthsMM(paper->GetSize());
 348         wxSize sizeMM(sizeTenthsMM.x / 10, sizeTenthsMM.y / 10);
 349
 350         // If in landscape mode, we need to swap the width and height.
 351         if ( m_printDialogData.GetPrintData().GetOrientation() == wxLANDSCAPE )
 352         {
 353             m_pageWidth = sizeDevUnits.y;
 354             m_pageHeight = sizeDevUnits.x;
 355             m_previewPrintout->SetPageSizeMM(sizeMM.y, sizeMM.x);
 356         }
 357         else
 358         {
 359             m_pageWidth = sizeDevUnits.x;
 360             m_pageHeight = sizeDevUnits.y;
 361             m_previewPrintout->SetPageSizeMM(sizeMM.x, sizeMM.y);
 362         }
 363         m_previewPrintout->SetPageSizePixels(m_pageWidth, m_pageHeight);
 364         m_previewPrintout->SetPaperRectPixels(wxRect(0, 0, m_pageWidth, m_pageHeight));
 365
 366         // At 100%, the page should look about page-size on the screen.
 367         m_previewScaleX = float(logPPIScreenX) / logPPIPrinterX;
 368         m_previewScaleY = float(logPPIScreenY) / logPPIPrinterY;
 369     }
 370 }
 371
 372 #endif