samples/printing/printing.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        printing.cpp
   3 // Purpose:     Printing demo for wxWidgets
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     1995
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx/wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifdef __BORLANDC__
  16 #pragma hdrstop
  17 #endif
  18
  19 #ifndef WX_PRECOMP
  20 #include "wx/wx.h"
  21 #endif
  22
  23 #if !wxUSE_PRINTING_ARCHITECTURE
  24 #error "You must set wxUSE_PRINTING_ARCHITECTURE to 1 in setup.h, and recompile the library."
  25 #endif
  26
  27 // Set this to 1 if you want to test PostScript printing under MSW.
  28 // However, you'll also need to edit src/msw/makefile.nt.
  29 #define wxTEST_POSTSCRIPT_IN_MSW 0
  30
  31 #include <ctype.h>
  32 #include "wx/metafile.h"
  33 #include "wx/print.h"
  34 #include "wx/printdlg.h"
  35 #include "wx/image.h"
  36 #include "wx/accel.h"
  37
  38 #if wxTEST_POSTSCRIPT_IN_MSW
  39 #include "wx/generic/printps.h"
  40 #include "wx/generic/prntdlgg.h"
  41 #endif
  42
  43 #include "printing.h"
  44
  45 #ifndef __WXMSW__
  46 #include "mondrian.xpm"
  47 #endif
  48
  49 #if wxUSE_LIBGNOMEPRINT
  50 #include "wx/html/forcelnk.h"
  51 FORCE_LINK(gnome_print)
  52 #endif
  53
  54
  55 // Declare a frame
  56 MyFrame   *frame = (MyFrame *) NULL;
  57 // int orientation = wxPORTRAIT;
  58
  59 // Global print data, to remember settings during the session
  60 wxPrintData *g_printData = (wxPrintData*) NULL ;
  61
  62 // Global page setup data
  63 wxPageSetupData* g_pageSetupData = (wxPageSetupData*) NULL;
  64
  65 // Main proc
  66 IMPLEMENT_APP(MyApp)
  67
  68 // Writes a header on a page. Margin units are in millimetres.
  69 bool WritePageHeader(wxPrintout *printout, wxDC *dc, const wxChar *text, float mmToLogical);
  70
  71 // The `main program' equivalent, creating the windows and returning the
  72 // main frame
  73
  74 bool MyApp::OnInit(void)
  75 {
  76     wxInitAllImageHandlers();
  77
  78     m_testFont.Create(10, wxSWISS, wxNORMAL, wxNORMAL);
  79
  80     g_printData = new wxPrintData;
  81     g_pageSetupData = new wxPageSetupDialogData;
  82
  83     // Create the main frame window
  84     frame = new MyFrame((wxFrame *) NULL, _T("wxWidgets Printing Demo"), wxPoint(0, 0), wxSize(400, 400));
  85
  86 #if wxUSE_STATUSBAR
  87     // Give it a status line
  88     frame->CreateStatusBar(2);
  89 #endif // wxUSE_STATUSBAR
  90
  91     // Load icon and bitmap
  92     frame->SetIcon( wxICON( mondrian) );
  93
  94     // Make a menubar
  95     wxMenu *file_menu = new wxMenu;
  96
  97     file_menu->Append(WXPRINT_PRINT, _T("&Print..."),              _T("Print"));
  98     file_menu->Append(WXPRINT_PAGE_SETUP, _T("Page Set&up..."),              _T("Page setup"));
  99     file_menu->Append(WXPRINT_PREVIEW, _T("Print Pre&view"),              _T("Preview"));
 100
 101 #if wxUSE_ACCEL
 102     // Accelerators
 103     wxAcceleratorEntry entries[1];
 104     entries[0].Set(wxACCEL_CTRL, (int) 'V', WXPRINT_PREVIEW);
 105     wxAcceleratorTable accel(1, entries);
 106     frame->SetAcceleratorTable(accel);
 107 #endif
 108
 109 #if defined(__WXMSW__) && wxTEST_POSTSCRIPT_IN_MSW
 110     file_menu->AppendSeparator();
 111     file_menu->Append(WXPRINT_PRINT_PS, _T("Print PostScript..."),              _T("Print (PostScript)"));
 112     file_menu->Append(WXPRINT_PAGE_SETUP_PS, _T("Page Setup PostScript..."),              _T("Page setup (PostScript)"));
 113     file_menu->Append(WXPRINT_PREVIEW_PS, _T("Print Preview PostScript"),              _T("Preview (PostScript)"));
 114 #endif
 115     file_menu->AppendSeparator();
 116     file_menu->Append(WXPRINT_ANGLEUP, _T("Angle up\tAlt-U"),                _T("Raise rotated text angle"));
 117     file_menu->Append(WXPRINT_ANGLEDOWN, _T("Angle down\tAlt-D"),            _T("Lower rotated text angle"));
 118     file_menu->AppendSeparator();
 119     file_menu->Append(WXPRINT_QUIT, _T("E&xit"),                _T("Exit program"));
 120
 121     wxMenu *help_menu = new wxMenu;
 122     help_menu->Append(WXPRINT_ABOUT, _T("&About"),              _T("About this demo"));
 123
 124     wxMenuBar *menu_bar = new wxMenuBar;
 125
 126     menu_bar->Append(file_menu, _T("&File"));
 127     menu_bar->Append(help_menu, _T("&Help"));
 128
 129     // Associate the menu bar with the frame
 130     frame->SetMenuBar(menu_bar);
 131
 132     MyCanvas *canvas = new MyCanvas(frame, wxPoint(0, 0), wxSize(100, 100), wxRETAINED|wxHSCROLL|wxVSCROLL);
 133
 134     // Give it scrollbars: the virtual canvas is 20 * 50 = 1000 pixels in each direction
 135     canvas->SetScrollbars(20, 20, 50, 50);
 136
 137     frame->canvas = canvas;
 138
 139     frame->Centre(wxBOTH);
 140     frame->Show();
 141
 142 #if wxUSE_STATUSBAR
 143     frame->SetStatusText(_T("Printing demo"));
 144 #endif // wxUSE_STATUSBAR
 145
 146     SetTopWindow(frame);
 147
 148     return true;
 149 }
 150
 151 int MyApp::OnExit()
 152 {
 153     delete g_printData;
 154     delete g_pageSetupData;
 155     return 1;
 156 }
 157
 158 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 159 EVT_MENU(WXPRINT_QUIT, MyFrame::OnExit)
 160 EVT_MENU(WXPRINT_PRINT, MyFrame::OnPrint)
 161 EVT_MENU(WXPRINT_PREVIEW, MyFrame::OnPrintPreview)
 162 EVT_MENU(WXPRINT_PAGE_SETUP, MyFrame::OnPageSetup)
 163 EVT_MENU(WXPRINT_ABOUT, MyFrame::OnPrintAbout)
 164 #if defined(__WXMSW__) && wxTEST_POSTSCRIPT_IN_MSW
 165 EVT_MENU(WXPRINT_PRINT_PS, MyFrame::OnPrintPS)
 166 EVT_MENU(WXPRINT_PREVIEW_PS, MyFrame::OnPrintPreviewPS)
 167 EVT_MENU(WXPRINT_PAGE_SETUP_PS, MyFrame::OnPageSetupPS)
 168 #endif
 169 EVT_MENU(WXPRINT_ANGLEUP, MyFrame::OnAngleUp)
 170 EVT_MENU(WXPRINT_ANGLEDOWN, MyFrame::OnAngleDown)
 171 END_EVENT_TABLE()
 172
 173 // Define my frame constructor
 174 MyFrame::MyFrame(wxFrame *frame, const wxString& title, const wxPoint& pos, const wxSize& size):
 175 wxFrame(frame, wxID_ANY, title, pos, size)
 176 {
 177     canvas = NULL;
 178     m_angle = 30;
 179 #if 0
 180     wxImage image( wxT("test.jpg") );
 181     image.SetAlpha();
 182     int i,j;
 183     for (i = 0; i < image.GetWidth(); i++)
 184        for (j = 0; j < image.GetHeight(); j++)
 185           image.SetAlpha( i, j, 50 );
 186     m_bitmap = image;
 187 #endif
 188 }
 189
 190 void MyFrame::OnExit(wxCommandEvent& WXUNUSED(event))
 191 {
 192     Close(true /*force closing*/);
 193 }
 194
 195 void MyFrame::OnPrint(wxCommandEvent& WXUNUSED(event))
 196 {
 197     wxPrintDialogData printDialogData(* g_printData);
 198
 199     wxPrinter printer(& printDialogData);
 200     MyPrintout printout(_T("My printout"));
 201     if (!printer.Print(this, &printout, true /*prompt*/))
 202     {
 203         if (wxPrinter::GetLastError() == wxPRINTER_ERROR)
 204             wxMessageBox(_T("There was a problem printing.\nPerhaps your current printer is not set correctly?"), _T("Printing"), wxOK);
 205         else
 206             wxMessageBox(_T("You canceled printing"), _T("Printing"), wxOK);
 207     }
 208     else
 209     {
 210         (*g_printData) = printer.GetPrintDialogData().GetPrintData();
 211     }
 212 }
 213
 214 void MyFrame::OnPrintPreview(wxCommandEvent& WXUNUSED(event))
 215 {
 216     // Pass two printout objects: for preview, and possible printing.
 217     wxPrintDialogData printDialogData(* g_printData);
 218     wxPrintPreview *preview = new wxPrintPreview(new MyPrintout, new MyPrintout, & printDialogData);
 219     if (!preview->Ok())
 220     {
 221         delete preview;
 222         wxMessageBox(_T("There was a problem previewing.\nPerhaps your current printer is not set correctly?"), _T("Previewing"), wxOK);
 223         return;
 224     }
 225
 226     wxPreviewFrame *frame = new wxPreviewFrame(preview, this, _T("Demo Print Preview"), wxPoint(100, 100), wxSize(600, 650));
 227     frame->Centre(wxBOTH);
 228     frame->Initialize();
 229     frame->Show();
 230 }
 231
 232 void MyFrame::OnPageSetup(wxCommandEvent& WXUNUSED(event))
 233 {
 234     (*g_pageSetupData) = *g_printData;
 235
 236     wxPageSetupDialog pageSetupDialog(this, g_pageSetupData);
 237     pageSetupDialog.ShowModal();
 238
 239     (*g_printData) = pageSetupDialog.GetPageSetupData().GetPrintData();
 240     (*g_pageSetupData) = pageSetupDialog.GetPageSetupData();
 241 }
 242
 243 #if defined(__WXMSW__) && wxTEST_POSTSCRIPT_IN_MSW
 244 void MyFrame::OnPrintPS(wxCommandEvent& WXUNUSED(event))
 245 {
 246     wxPostScriptPrinter printer(g_printData);
 247     MyPrintout printout(_T("My printout"));
 248     printer.Print(this, &printout, true/*prompt*/);
 249
 250     (*g_printData) = printer.GetPrintData();
 251 }
 252
 253 void MyFrame::OnPrintPreviewPS(wxCommandEvent& WXUNUSED(event))
 254 {
 255     // Pass two printout objects: for preview, and possible printing.
 256     wxPrintDialogData printDialogData(* g_printData);
 257     wxPrintPreview *preview = new wxPrintPreview(new MyPrintout, new MyPrintout, & printDialogData);
 258     wxPreviewFrame *frame = new wxPreviewFrame(preview, this, _T("Demo Print Preview"), wxPoint(100, 100), wxSize(600, 650));
 259     frame->Centre(wxBOTH);
 260     frame->Initialize();
 261     frame->Show();
 262 }
 263
 264 void MyFrame::OnPageSetupPS(wxCommandEvent& WXUNUSED(event))
 265 {
 266     (*g_pageSetupData) = * g_printData;
 267
 268     wxGenericPageSetupDialog pageSetupDialog(this, g_pageSetupData);
 269     pageSetupDialog.ShowModal();
 270
 271     (*g_printData) = pageSetupDialog.GetPageSetupData().GetPrintData();
 272     (*g_pageSetupData) = pageSetupDialog.GetPageSetupData();
 273 }
 274 #endif
 275
 276
 277 void MyFrame::OnPrintAbout(wxCommandEvent& WXUNUSED(event))
 278 {
 279     (void)wxMessageBox(_T("wxWidgets printing demo\nAuthor: Julian Smart"),
 280         _T("About wxWidgets printing demo"), wxOK|wxCENTRE);
 281 }
 282
 283 void MyFrame::OnAngleUp(wxCommandEvent& WXUNUSED(event))
 284 {
 285     m_angle += 5;
 286     canvas->Refresh();
 287 }
 288
 289 void MyFrame::OnAngleDown(wxCommandEvent& WXUNUSED(event))
 290 {
 291     m_angle -= 5;
 292     canvas->Refresh();
 293 }
 294
 295 void MyFrame::Draw(wxDC& dc)
 296 {
 297     dc.SetBackground(*wxWHITE_BRUSH);
 298     dc.Clear();
 299     dc.SetFont(wxGetApp().m_testFont);
 300
 301     dc.SetBackgroundMode(wxTRANSPARENT);
 302
 303     dc.SetBrush(*wxCYAN_BRUSH);
 304     dc.SetPen(*wxRED_PEN);
 305
 306     dc.DrawRoundedRectangle(0, 20, 200, 80, 20);
 307
 308     dc.DrawText( wxT("Rectangle 200 by 80"), 40, 40);
 309
 310     dc.SetPen( wxPen(*wxBLACK,0,wxDOT_DASH) );
 311     dc.DrawEllipse(50, 140, 100, 50);
 312     dc.SetPen(*wxRED_PEN);
 313
 314     dc.DrawText( wxT("Test message: this is in 10 point text"), 10, 180);
 315
 316
 317 #if wxUSE_UNICODE
 318     char *test = "Hebrew    שלום -- Japanese (日本語)";
 319     wxString tmp = wxConvUTF8.cMB2WC( test );
 320     dc.DrawText( tmp, 10, 200 );
 321 #endif
 322
 323     wxPoint points[5];
 324     points[0].x = 0;
 325     points[0].y = 0;
 326     points[1].x = 20;
 327     points[1].y = 0;
 328     points[2].x = 20;
 329     points[2].y = 20;
 330     points[3].x = 10;
 331     points[3].y = 20;
 332     points[4].x = 10;
 333     points[4].y = -20;
 334     dc.DrawPolygon( 5, points, 20, 250, wxODDEVEN_RULE );
 335     dc.DrawPolygon( 5, points, 50, 250, wxWINDING_RULE );
 336
 337     dc.DrawEllipticArc( 80, 250, 60, 30, 0.0, 270.0 );
 338
 339     points[0].x = 150;
 340     points[0].y = 250;
 341     points[1].x = 180;
 342     points[1].y = 250;
 343     points[2].x = 180;
 344     points[2].y = 220;
 345     points[3].x = 200;
 346     points[3].y = 220;
 347     dc.DrawSpline( 4, points );
 348
 349     dc.DrawArc( 20,10, 10,10, 25,40 );
 350
 351     wxString str;
 352     int i = 0;
 353     str.Printf( wxT("---- Text at angle %d ----"), i );
 354     dc.DrawRotatedText( str, 100, 300, i );
 355
 356     i = m_angle;
 357     str.Printf( wxT("---- Text at angle %d ----"), i );
 358     dc.DrawRotatedText( str, 100, 300, i );
 359
 360     dc.SetPen(* wxBLACK_PEN);
 361     dc.DrawLine(0, 0, 200, 200);
 362     dc.DrawLine(200, 0, 0, 200);
 363
 364     wxIcon my_icon = wxICON(mondrian) ;
 365
 366     dc.DrawIcon( my_icon, 100, 100);
 367
 368     if (m_bitmap.Ok())
 369         dc.DrawBitmap( m_bitmap, 10, 10 );
 370 }
 371
 372 void MyFrame::OnSize(wxSizeEvent& event )
 373 {
 374     wxFrame::OnSize(event);
 375 }
 376
 377 BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
 378 EVT_MOUSE_EVENTS(MyCanvas::OnEvent)
 379 END_EVENT_TABLE()
 380
 381 // Define a constructor for my canvas
 382 MyCanvas::MyCanvas(wxFrame *frame, const wxPoint& pos, const wxSize& size, long style):
 383     wxScrolledWindow(frame, wxID_ANY, pos, size, style)
 384 {
 385     SetBackgroundColour(* wxWHITE);
 386 }
 387
 388 // Define the repainting behaviour
 389 void MyCanvas::OnDraw(wxDC& dc)
 390 {
 391     frame->Draw(dc);
 392 }
 393
 394 void MyCanvas::OnEvent(wxMouseEvent& WXUNUSED(event))
 395 {
 396 }
 397
 398 bool MyPrintout::OnPrintPage(int page)
 399 {
 400     wxDC *dc = GetDC();
 401     if (dc)
 402     {
 403         if (page == 1)
 404             DrawPageOne(dc);
 405         else if (page == 2)
 406             DrawPageTwo(dc);
 407
 408         dc->SetDeviceOrigin(0, 0);
 409         dc->SetUserScale(1.0, 1.0);
 410
 411         wxChar buf[200];
 412         wxSprintf(buf, wxT("PAGE %d"), page);
 413         dc->DrawText(buf, 10, 10);
 414
 415         return true;
 416     }
 417     else
 418         return false;
 419 }
 420
 421 bool MyPrintout::OnBeginDocument(int startPage, int endPage)
 422 {
 423     if (!wxPrintout::OnBeginDocument(startPage, endPage))
 424         return false;
 425
 426     return true;
 427 }
 428
 429 void MyPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo)
 430 {
 431     *minPage = 1;
 432     *maxPage = 2;
 433     *selPageFrom = 1;
 434     *selPageTo = 2;
 435 }
 436
 437 bool MyPrintout::HasPage(int pageNum)
 438 {
 439     return (pageNum == 1 || pageNum == 2);
 440 }
 441
 442 void MyPrintout::DrawPageOne(wxDC *dc)
 443 {
 444     // You might use THIS code if you were scaling
 445     // graphics of known size to fit on the page.
 446
 447     // We know the graphic is 200x200. If we didn't know this,
 448     // we'd need to calculate it.
 449     float maxX = 200;
 450     float maxY = 200;
 451
 452     // Let's have at least 50 device units margin
 453     float marginX = 50;
 454     float marginY = 50;
 455
 456     // Add the margin to the graphic size
 457     maxX += (2*marginX);
 458     maxY += (2*marginY);
 459
 460     // Get the size of the DC in pixels
 461     int w, h;
 462     dc->GetSize(&w, &h);
 463
 464     // Calculate a suitable scaling factor
 465     float scaleX=(float)(w/maxX);
 466     float scaleY=(float)(h/maxY);
 467
 468     // Use x or y scaling factor, whichever fits on the DC
 469     float actualScale = wxMin(scaleX,scaleY);
 470
 471     // Calculate the position on the DC for centring the graphic
 472     float posX = (float)((w - (200*actualScale))/2.0);
 473     float posY = (float)((h - (200*actualScale))/2.0);
 474
 475     // Set the scale and origin
 476     dc->SetUserScale(actualScale, actualScale);
 477     dc->SetDeviceOrigin( (long)posX, (long)posY );
 478
 479     frame->Draw(*dc);
 480 }
 481
 482 void MyPrintout::DrawPageTwo(wxDC *dc)
 483 {
 484     // You might use THIS code to set the printer DC to ROUGHLY reflect
 485     // the screen text size. This page also draws lines of actual length
 486     // 5cm on the page.
 487
 488     // Get the logical pixels per inch of screen and printer
 489     int ppiScreenX, ppiScreenY;
 490     GetPPIScreen(&ppiScreenX, &ppiScreenY);
 491     int ppiPrinterX, ppiPrinterY;
 492     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
 493
 494     // This scales the DC so that the printout roughly represents the
 495     // the screen scaling. The text point size _should_ be the right size
 496     // but in fact is too small for some reason. This is a detail that will
 497     // need to be addressed at some point but can be fudged for the
 498     // moment.
 499     float scale = (float)((float)ppiPrinterX/(float)ppiScreenX);
 500
 501     // Now we have to check in case our real page size is reduced
 502     // (e.g. because we're drawing to a print preview memory DC)
 503     int pageWidth, pageHeight;
 504     int w, h;
 505     dc->GetSize(&w, &h);
 506     GetPageSizePixels(&pageWidth, &pageHeight);
 507
 508     // If printer pageWidth == current DC width, then this doesn't
 509     // change. But w might be the preview bitmap width, so scale down.
 510     float overallScale = scale * (float)(w/(float)pageWidth);
 511     dc->SetUserScale(overallScale, overallScale);
 512
 513     // Calculate conversion factor for converting millimetres into
 514     // logical units.
 515     // There are approx. 25.4 mm to the inch. There are ppi
 516     // device units to the inch. Therefore 1 mm corresponds to
 517     // ppi/25.4 device units. We also divide by the
 518     // screen-to-printer scaling factor, because we need to
 519     // unscale to pass logical units to DrawLine.
 520
 521     // Draw 50 mm by 50 mm L shape
 522     float logUnitsFactor = (float)(ppiPrinterX/(scale*25.4));
 523     float logUnits = (float)(50*logUnitsFactor);
 524     dc->SetPen(* wxBLACK_PEN);
 525     dc->DrawLine(50, 250, (long)(50.0 + logUnits), 250);
 526     dc->DrawLine(50, 250, 50, (long)(250.0 + logUnits));
 527
 528     dc->SetBackgroundMode(wxTRANSPARENT);
 529     dc->SetBrush(*wxTRANSPARENT_BRUSH);
 530
 531     { // GetTextExtent demo:
 532         wxString words[7] = {_T("This "), _T("is "), _T("GetTextExtent "), _T("testing "), _T("string. "), _T("Enjoy "), _T("it!")};
 533         long w, h;
 534         long x = 200, y= 250;
 535         wxFont fnt(15, wxSWISS, wxNORMAL, wxNORMAL);
 536
 537         dc->SetFont(fnt);
 538
 539         for (int i = 0; i < 7; i++)
 540         {
 541             wxString word = words[i];
 542             word.Remove( word.Len()-1, 1 );
 543             dc->GetTextExtent(word, &w, &h);
 544             dc->DrawRectangle(x, y, w, h);
 545             dc->GetTextExtent(words[i], &w, &h);
 546             dc->DrawText(words[i], x, y);
 547             x += w;
 548         }
 549
 550     }
 551
 552     dc->SetFont(wxGetApp().m_testFont);
 553
 554     dc->DrawText(_T("Some test text"), 200, 300 );
 555
 556     // TESTING
 557
 558     int leftMargin = 20;
 559     int rightMargin = 20;
 560     int topMargin = 20;
 561     int bottomMargin = 20;
 562
 563     int pageWidthMM, pageHeightMM;
 564     GetPageSizeMM(&pageWidthMM, &pageHeightMM);
 565
 566     float leftMarginLogical = (float)(logUnitsFactor*leftMargin);
 567     float topMarginLogical = (float)(logUnitsFactor*topMargin);
 568     float bottomMarginLogical = (float)(logUnitsFactor*(pageHeightMM - bottomMargin));
 569     float rightMarginLogical = (float)(logUnitsFactor*(pageWidthMM - rightMargin));
 570
 571     dc->SetPen(* wxRED_PEN);
 572     dc->DrawLine( (long)leftMarginLogical, (long)topMarginLogical,
 573         (long)rightMarginLogical, (long)topMarginLogical);
 574     dc->DrawLine( (long)leftMarginLogical, (long)bottomMarginLogical,
 575         (long)rightMarginLogical,  (long)bottomMarginLogical);
 576
 577     WritePageHeader(this, dc, _T("A header"), logUnitsFactor);
 578 }
 579
 580 // Writes a header on a page. Margin units are in millimetres.
 581 bool WritePageHeader(wxPrintout *printout, wxDC *dc, const wxChar *text, float mmToLogical)
 582 {
 583 /*
 584 static wxFont *headerFont = (wxFont *) NULL;
 585 if (!headerFont)
 586 {
 587 headerFont = wxTheFontList->FindOrCreateFont(16, wxSWISS, wxNORMAL, wxBOLD);
 588 }
 589 dc->SetFont(headerFont);
 590     */
 591
 592     int pageWidthMM, pageHeightMM;
 593
 594     printout->GetPageSizeMM(&pageWidthMM, &pageHeightMM);
 595     wxUnusedVar(pageHeightMM);
 596
 597     int leftMargin = 10;
 598     int topMargin = 10;
 599     int rightMargin = 10;
 600
 601     float leftMarginLogical = (float)(mmToLogical*leftMargin);
 602     float topMarginLogical = (float)(mmToLogical*topMargin);
 603     float rightMarginLogical = (float)(mmToLogical*(pageWidthMM - rightMargin));
 604
 605     long xExtent, yExtent;
 606     dc->GetTextExtent(text, &xExtent, &yExtent);
 607     float xPos = (float)(((((pageWidthMM - leftMargin - rightMargin)/2.0)+leftMargin)*mmToLogical) - (xExtent/2.0));
 608     dc->DrawText(text, (long)xPos, (long)topMarginLogical);
 609
 610     dc->SetPen(* wxBLACK_PEN);
 611     dc->DrawLine( (long)leftMarginLogical, (long)(topMarginLogical+yExtent),
 612         (long)rightMarginLogical, (long)topMarginLogical+yExtent );
 613
 614     return true;
 615 }