src/html/htmprint.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/html/htmprint.cpp
   3 // Purpose:     html printing classes
   4 // Author:      Vaclav Slavik
   5 // Created:     25/09/99
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) Vaclav Slavik, 1999
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 // For compilers that support precompilation, includes "wx/wx.h".
  12 #include "wx/wxprec.h"
  13
  14 #ifdef __BORLANDC__
  15     #pragma hdrstop
  16 #endif
  17
  18 #if wxUSE_HTML && wxUSE_PRINTING_ARCHITECTURE && wxUSE_STREAMS
  19
  20 #ifndef WX_PRECOMP
  21     #include "wx/log.h"
  22     #include "wx/intl.h"
  23     #include "wx/dc.h"
  24     #include "wx/settings.h"
  25     #include "wx/msgdlg.h"
  26     #include "wx/module.h"
  27 #endif
  28
  29 #include "wx/print.h"
  30 #include "wx/printdlg.h"
  31 #include "wx/html/htmprint.h"
  32 #include "wx/wxhtml.h"
  33 #include "wx/wfstream.h"
  34
  35
  36 // default font size of normal text (HTML font size 0) for printing, in points:
  37 #define DEFAULT_PRINT_FONT_SIZE   12
  38
  39
  40 //--------------------------------------------------------------------------------
  41 // wxHtmlDCRenderer
  42 //--------------------------------------------------------------------------------
  43
  44
  45 wxHtmlDCRenderer::wxHtmlDCRenderer() : wxObject()
  46 {
  47     m_DC = NULL;
  48     m_Width = m_Height = 0;
  49     m_Cells = NULL;
  50     m_Parser = new wxHtmlWinParser();
  51     m_FS = new wxFileSystem();
  52     m_Parser->SetFS(m_FS);
  53     SetStandardFonts(DEFAULT_PRINT_FONT_SIZE);
  54 }
  55
  56
  57
  58 wxHtmlDCRenderer::~wxHtmlDCRenderer()
  59 {
  60     if (m_Cells) delete m_Cells;
  61     if (m_Parser) delete m_Parser;
  62     if (m_FS) delete m_FS;
  63 }
  64
  65
  66
  67 void wxHtmlDCRenderer::SetDC(wxDC *dc, double pixel_scale)
  68 {
  69     m_DC = dc;
  70     m_Parser->SetDC(m_DC, pixel_scale);
  71 }
  72
  73
  74
  75 void wxHtmlDCRenderer::SetSize(int width, int height)
  76 {
  77     wxCHECK_RET( width, "width must be non-zero" );
  78     wxCHECK_RET( height, "height must be non-zero" );
  79
  80     m_Width = width;
  81     m_Height = height;
  82 }
  83
  84
  85 void wxHtmlDCRenderer::SetHtmlText(const wxString& html, const wxString& basepath, bool isdir)
  86 {
  87     wxCHECK_RET( m_DC, "SetDC() must be called before SetHtmlText()" );
  88     wxCHECK_RET( m_Width, "SetSize() must be called before SetHtmlText()" );
  89
  90     wxDELETE(m_Cells);
  91
  92     m_FS->ChangePathTo(basepath, isdir);
  93     m_Cells = (wxHtmlContainerCell*) m_Parser->Parse(html);
  94     m_Cells->SetIndent(0, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
  95     m_Cells->Layout(m_Width);
  96 }
  97
  98
  99 void wxHtmlDCRenderer::SetFonts(const wxString& normal_face, const wxString& fixed_face,
 100                                 const int *sizes)
 101 {
 102     m_Parser->SetFonts(normal_face, fixed_face, sizes);
 103
 104     if ( m_Cells )
 105         m_Cells->Layout(m_Width);
 106     // else: SetHtmlText() not yet called, no need for relayout
 107 }
 108
 109 void wxHtmlDCRenderer::SetStandardFonts(int size,
 110                                         const wxString& normal_face,
 111                                         const wxString& fixed_face)
 112 {
 113     m_Parser->SetStandardFonts(size, normal_face, fixed_face);
 114
 115     if ( m_Cells )
 116         m_Cells->Layout(m_Width);
 117     // else: SetHtmlText() not yet called, no need for relayout
 118 }
 119
 120 int wxHtmlDCRenderer::Render(int x, int y,
 121                              wxArrayInt& known_pagebreaks,
 122                              int from, int dont_render, int to)
 123 {
 124     wxCHECK_MSG( m_Cells, 0, "SetHtmlText() must be called before Render()" );
 125     wxCHECK_MSG( m_DC, 0, "SetDC() must be called before Render()" );
 126
 127     int pbreak, hght;
 128
 129     pbreak = (int)(from + m_Height);
 130     while (m_Cells->AdjustPagebreak(&pbreak, known_pagebreaks)) {}
 131     hght = pbreak - from;
 132     if(to < hght)
 133         hght = to;
 134
 135     if (!dont_render)
 136     {
 137         wxHtmlRenderingInfo rinfo;
 138         wxDefaultHtmlRenderingStyle rstyle;
 139         rinfo.SetStyle(&rstyle);
 140         m_DC->SetBrush(*wxWHITE_BRUSH);
 141         m_DC->SetClippingRegion(x, y, m_Width, hght);
 142         m_Cells->Draw(*m_DC,
 143                       x, (y - from),
 144                       y, y + hght,
 145                       rinfo);
 146         m_DC->DestroyClippingRegion();
 147     }
 148
 149     if (pbreak < m_Cells->GetHeight()) return pbreak;
 150     else return GetTotalHeight();
 151 }
 152
 153 int wxHtmlDCRenderer::GetTotalWidth() const
 154 {
 155     return m_Cells ? m_Cells->GetWidth() : 0;
 156 }
 157
 158 int wxHtmlDCRenderer::GetTotalHeight() const
 159 {
 160     return m_Cells ? m_Cells->GetHeight() : 0;
 161 }
 162
 163
 164 //--------------------------------------------------------------------------------
 165 // wxHtmlPrintout
 166 //--------------------------------------------------------------------------------
 167
 168
 169 wxList wxHtmlPrintout::m_Filters;
 170
 171 wxHtmlPrintout::wxHtmlPrintout(const wxString& title) : wxPrintout(title)
 172 {
 173     m_Renderer = new wxHtmlDCRenderer;
 174     m_RendererHdr = new wxHtmlDCRenderer;
 175     m_NumPages = wxHTML_PRINT_MAX_PAGES;
 176     m_Document = m_BasePath = wxEmptyString; m_BasePathIsDir = true;
 177     m_Headers[0] = m_Headers[1] = wxEmptyString;
 178     m_Footers[0] = m_Footers[1] = wxEmptyString;
 179     m_HeaderHeight = m_FooterHeight = 0;
 180     SetMargins(); // to default values
 181     SetStandardFonts(DEFAULT_PRINT_FONT_SIZE);
 182 }
 183
 184
 185
 186 wxHtmlPrintout::~wxHtmlPrintout()
 187 {
 188     delete m_Renderer;
 189     delete m_RendererHdr;
 190 }
 191
 192 void wxHtmlPrintout::CleanUpStatics()
 193 {
 194     WX_CLEAR_LIST(wxList, m_Filters);
 195 }
 196
 197 // Adds input filter
 198 void wxHtmlPrintout::AddFilter(wxHtmlFilter *filter)
 199 {
 200     m_Filters.Append(filter);
 201 }
 202
 203 bool
 204 wxHtmlPrintout::CheckFit(const wxSize& pageArea, const wxSize& docArea) const
 205 {
 206     if ( docArea.x > pageArea.x )
 207     {
 208         wxMessageDialog
 209             dlg
 210             (
 211                 NULL,
 212                 wxString::Format
 213                 (
 214                  _("The document \"%s\" doesn't fit on the page "
 215                    "horizontally and will be truncated if printed.\n"
 216                    "\n"
 217                    "Would you like to proceed with printing it nevertheless?"),
 218                  GetTitle()
 219                 ),
 220                 _("Printing"),
 221                 wxOK | wxCANCEL | wxCANCEL_DEFAULT | wxICON_QUESTION
 222             );
 223         dlg.SetExtendedMessage
 224             (
 225                 _("If possible, try changing the layout parameters to "
 226                   "make the printout more narrow.")
 227             );
 228         dlg.SetOKLabel(wxID_PRINT);
 229
 230         if ( dlg.ShowModal() == wxID_CANCEL )
 231             return false;
 232     }
 233
 234     return true;
 235 }
 236
 237 void wxHtmlPrintout::OnPreparePrinting()
 238 {
 239     int pageWidth, pageHeight, mm_w, mm_h, dc_w, dc_h;
 240     float ppmm_h, ppmm_v;
 241
 242     GetPageSizePixels(&pageWidth, &pageHeight);
 243     GetPageSizeMM(&mm_w, &mm_h);
 244     ppmm_h = (float)pageWidth / mm_w;
 245     ppmm_v = (float)pageHeight / mm_h;
 246
 247     int ppiPrinterX, ppiPrinterY;
 248     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
 249     wxUnusedVar(ppiPrinterX);
 250     int ppiScreenX, ppiScreenY;
 251     GetPPIScreen(&ppiScreenX, &ppiScreenY);
 252     wxUnusedVar(ppiScreenX);
 253
 254     GetDC()->GetSize(&dc_w, &dc_h);
 255
 256     GetDC()->SetUserScale((double)dc_w / (double)pageWidth,
 257                           (double)dc_h / (double)pageHeight);
 258
 259     /* prepare headers/footers renderer: */
 260
 261     m_RendererHdr->SetDC(GetDC(), (double)ppiPrinterY / (double)ppiScreenY);
 262     m_RendererHdr->SetSize((int) (ppmm_h * (mm_w - m_MarginLeft - m_MarginRight)),
 263                           (int) (ppmm_v * (mm_h - m_MarginTop - m_MarginBottom)));
 264     if (m_Headers[0] != wxEmptyString)
 265     {
 266         m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[0], 1));
 267         m_HeaderHeight = m_RendererHdr->GetTotalHeight();
 268     }
 269     else if (m_Headers[1] != wxEmptyString)
 270     {
 271         m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[1], 1));
 272         m_HeaderHeight = m_RendererHdr->GetTotalHeight();
 273     }
 274     if (m_Footers[0] != wxEmptyString)
 275     {
 276         m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[0], 1));
 277         m_FooterHeight = m_RendererHdr->GetTotalHeight();
 278     }
 279     else if (m_Footers[1] != wxEmptyString)
 280     {
 281         m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[1], 1));
 282         m_FooterHeight = m_RendererHdr->GetTotalHeight();
 283     }
 284
 285     /* prepare main renderer: */
 286     m_Renderer->SetDC(GetDC(), (double)ppiPrinterY / (double)ppiScreenY);
 287
 288     const int printAreaW = int(ppmm_h * (mm_w - m_MarginLeft - m_MarginRight));
 289     int printAreaH = int(ppmm_v * (mm_h - m_MarginTop - m_MarginBottom));
 290     if ( m_HeaderHeight )
 291         printAreaH -= int(m_HeaderHeight + m_MarginSpace * ppmm_v);
 292     if ( m_FooterHeight )
 293         printAreaH -= int(m_FooterHeight + m_MarginSpace * ppmm_v);
 294
 295     m_Renderer->SetSize(printAreaW, printAreaH);
 296     m_Renderer->SetHtmlText(m_Document, m_BasePath, m_BasePathIsDir);
 297
 298     if ( CheckFit(wxSize(printAreaW, printAreaH),
 299                   wxSize(m_Renderer->GetTotalWidth(),
 300                          m_Renderer->GetTotalHeight())) )
 301     {
 302         // do paginate the document
 303         CountPages();
 304     }
 305     //else: if we don't call CountPages() m_PageBreaks remains empty and our
 306     //      GetPageInfo() will return 0 as max page and so nothing will be
 307     //      printed
 308 }
 309
 310 bool wxHtmlPrintout::OnBeginDocument(int startPage, int endPage)
 311 {
 312     if (!wxPrintout::OnBeginDocument(startPage, endPage)) return false;
 313
 314     return true;
 315 }
 316
 317
 318 bool wxHtmlPrintout::OnPrintPage(int page)
 319 {
 320     wxDC *dc = GetDC();
 321     if (dc && dc->IsOk())
 322     {
 323         if (HasPage(page))
 324             RenderPage(dc, page);
 325         return true;
 326     }
 327     else return false;
 328 }
 329
 330
 331 void wxHtmlPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo)
 332 {
 333     *minPage = 1;
 334     if ( m_NumPages >= (signed)m_PageBreaks.GetCount()-1)
 335         *maxPage = m_NumPages;
 336     else
 337         *maxPage = (signed)m_PageBreaks.GetCount()-1;
 338     *selPageFrom = 1;
 339     *selPageTo = (signed)m_PageBreaks.GetCount()-1;
 340 }
 341
 342
 343
 344 bool wxHtmlPrintout::HasPage(int pageNum)
 345 {
 346     return pageNum > 0 && (unsigned)pageNum < m_PageBreaks.GetCount();
 347 }
 348
 349
 350
 351 void wxHtmlPrintout::SetHtmlText(const wxString& html, const wxString &basepath, bool isdir)
 352 {
 353     m_Document = html;
 354     m_BasePath = basepath;
 355     m_BasePathIsDir = isdir;
 356 }
 357
 358 void wxHtmlPrintout::SetHtmlFile(const wxString& htmlfile)
 359 {
 360     wxFileSystem fs;
 361     wxFSFile *ff;
 362
 363     if (wxFileExists(htmlfile))
 364         ff = fs.OpenFile(wxFileSystem::FileNameToURL(htmlfile));
 365     else
 366         ff = fs.OpenFile(htmlfile);
 367
 368     if (ff == NULL)
 369     {
 370         wxLogError(htmlfile + _(": file does not exist!"));
 371         return;
 372     }
 373
 374     bool done = false;
 375     wxHtmlFilterHTML defaultFilter;
 376     wxString doc;
 377
 378     wxList::compatibility_iterator node = m_Filters.GetFirst();
 379     while (node)
 380     {
 381         wxHtmlFilter *h = (wxHtmlFilter*) node->GetData();
 382         if (h->CanRead(*ff))
 383         {
 384             doc = h->ReadFile(*ff);
 385             done = true;
 386             break;
 387         }
 388         node = node->GetNext();
 389     }
 390
 391     if (!done)
 392         doc = defaultFilter.ReadFile(*ff);
 393
 394     SetHtmlText(doc, htmlfile, false);
 395     delete ff;
 396 }
 397
 398
 399
 400 void wxHtmlPrintout::SetHeader(const wxString& header, int pg)
 401 {
 402     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 403         m_Headers[0] = header;
 404     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 405         m_Headers[1] = header;
 406 }
 407
 408
 409
 410 void wxHtmlPrintout::SetFooter(const wxString& footer, int pg)
 411 {
 412     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 413         m_Footers[0] = footer;
 414     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 415         m_Footers[1] = footer;
 416 }
 417
 418
 419
 420 void wxHtmlPrintout::CountPages()
 421 {
 422     wxBusyCursor wait;
 423     int pageWidth, pageHeight, mm_w, mm_h;
 424     float ppmm_h, ppmm_v;
 425
 426     GetPageSizePixels(&pageWidth, &pageHeight);
 427     GetPageSizeMM(&mm_w, &mm_h);
 428     ppmm_h = (float)pageWidth / mm_w;
 429     ppmm_v = (float)pageHeight / mm_h;
 430
 431     int pos = 0;
 432     m_NumPages = 0;
 433     // m_PageBreaks[0] = 0;
 434
 435     m_PageBreaks.Clear();
 436     m_PageBreaks.Add( 0);
 437     do
 438     {
 439         pos = m_Renderer->Render((int)( ppmm_h * m_MarginLeft),
 440                                  (int) (ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight),
 441                                  m_PageBreaks,
 442                                  pos, true, INT_MAX);
 443         m_PageBreaks.Add( pos);
 444         if( m_PageBreaks.GetCount() > wxHTML_PRINT_MAX_PAGES)
 445         {
 446             wxMessageBox( _("HTML pagination algorithm generated more than the allowed maximum number of pages and it can't continue any longer!"),
 447             _("Warning"), wxCANCEL | wxICON_ERROR );
 448             break;
 449         }
 450     } while (pos < m_Renderer->GetTotalHeight());
 451 }
 452
 453
 454
 455 void wxHtmlPrintout::RenderPage(wxDC *dc, int page)
 456 {
 457     wxBusyCursor wait;
 458
 459     int pageWidth, pageHeight, mm_w, mm_h, dc_w, dc_h;
 460     float ppmm_h, ppmm_v;
 461
 462     GetPageSizePixels(&pageWidth, &pageHeight);
 463     GetPageSizeMM(&mm_w, &mm_h);
 464     ppmm_h = (float)pageWidth / mm_w;
 465     ppmm_v = (float)pageHeight / mm_h;
 466     dc->GetSize(&dc_w, &dc_h);
 467
 468     int ppiPrinterX, ppiPrinterY;
 469     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
 470     wxUnusedVar(ppiPrinterX);
 471     int ppiScreenX, ppiScreenY;
 472     GetPPIScreen(&ppiScreenX, &ppiScreenY);
 473     wxUnusedVar(ppiScreenX);
 474
 475     dc->SetUserScale((double)dc_w / (double)pageWidth,
 476                      (double)dc_h / (double)pageHeight);
 477
 478     m_Renderer->SetDC(dc, (double)ppiPrinterY / (double)ppiScreenY);
 479
 480     dc->SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
 481
 482     m_Renderer->Render((int) (ppmm_h * m_MarginLeft),
 483                          (int) (ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight), m_PageBreaks,
 484                          m_PageBreaks[page-1], false, m_PageBreaks[page]-m_PageBreaks[page-1]);
 485
 486
 487     m_RendererHdr->SetDC(dc, (double)ppiPrinterY / (double)ppiScreenY);
 488     if (m_Headers[page % 2] != wxEmptyString)
 489     {
 490         m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[page % 2], page));
 491         m_RendererHdr->Render((int) (ppmm_h * m_MarginLeft), (int) (ppmm_v * m_MarginTop), m_PageBreaks);
 492     }
 493     if (m_Footers[page % 2] != wxEmptyString)
 494     {
 495         m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[page % 2], page));
 496         m_RendererHdr->Render((int) (ppmm_h * m_MarginLeft), (int) (pageHeight - ppmm_v * m_MarginBottom - m_FooterHeight), m_PageBreaks);
 497     }
 498 }
 499
 500
 501
 502 wxString wxHtmlPrintout::TranslateHeader(const wxString& instr, int page)
 503 {
 504     wxString r = instr;
 505     wxString num;
 506
 507     num.Printf(wxT("%i"), page);
 508     r.Replace(wxT("@PAGENUM@"), num);
 509
 510     num.Printf(wxT("%lu"), (unsigned long)(m_PageBreaks.GetCount() - 1));
 511     r.Replace(wxT("@PAGESCNT@"), num);
 512
 513     const wxDateTime now = wxDateTime::Now();
 514     r.Replace(wxT("@DATE@"), now.FormatDate());
 515     r.Replace(wxT("@TIME@"), now.FormatTime());
 516
 517     r.Replace(wxT("@TITLE@"), GetTitle());
 518
 519     return r;
 520 }
 521
 522
 523
 524 void wxHtmlPrintout::SetMargins(float top, float bottom, float left, float right, float spaces)
 525 {
 526     m_MarginTop = top;
 527     m_MarginBottom = bottom;
 528     m_MarginLeft = left;
 529     m_MarginRight = right;
 530     m_MarginSpace = spaces;
 531 }
 532
 533
 534
 535
 536 void wxHtmlPrintout::SetFonts(const wxString& normal_face, const wxString& fixed_face,
 537                               const int *sizes)
 538 {
 539     m_Renderer->SetFonts(normal_face, fixed_face, sizes);
 540     m_RendererHdr->SetFonts(normal_face, fixed_face, sizes);
 541 }
 542
 543 void wxHtmlPrintout::SetStandardFonts(int size,
 544                                       const wxString& normal_face,
 545                                       const wxString& fixed_face)
 546 {
 547     m_Renderer->SetStandardFonts(size, normal_face, fixed_face);
 548     m_RendererHdr->SetStandardFonts(size, normal_face, fixed_face);
 549 }
 550
 551
 552
 553 //----------------------------------------------------------------------------
 554 // wxHtmlEasyPrinting
 555 //----------------------------------------------------------------------------
 556
 557
 558 wxHtmlEasyPrinting::wxHtmlEasyPrinting(const wxString& name, wxWindow *parentWindow)
 559 {
 560     m_ParentWindow = parentWindow;
 561     m_Name = name;
 562     m_PrintData = NULL;
 563     m_PageSetupData = new wxPageSetupDialogData;
 564     m_Headers[0] = m_Headers[1] = m_Footers[0] = m_Footers[1] = wxEmptyString;
 565
 566     m_PageSetupData->EnableMargins(true);
 567     m_PageSetupData->SetMarginTopLeft(wxPoint(25, 25));
 568     m_PageSetupData->SetMarginBottomRight(wxPoint(25, 25));
 569
 570     SetStandardFonts(DEFAULT_PRINT_FONT_SIZE);
 571 }
 572
 573
 574
 575 wxHtmlEasyPrinting::~wxHtmlEasyPrinting()
 576 {
 577     delete m_PrintData;
 578     delete m_PageSetupData;
 579 }
 580
 581
 582 wxPrintData *wxHtmlEasyPrinting::GetPrintData()
 583 {
 584     if (m_PrintData == NULL)
 585         m_PrintData = new wxPrintData();
 586     return m_PrintData;
 587 }
 588
 589
 590 bool wxHtmlEasyPrinting::PreviewFile(const wxString &htmlfile)
 591 {
 592     wxHtmlPrintout *p1 = CreatePrintout();
 593     p1->SetHtmlFile(htmlfile);
 594     wxHtmlPrintout *p2 = CreatePrintout();
 595     p2->SetHtmlFile(htmlfile);
 596     return DoPreview(p1, p2);
 597 }
 598
 599
 600
 601 bool wxHtmlEasyPrinting::PreviewText(const wxString &htmltext, const wxString &basepath)
 602 {
 603     wxHtmlPrintout *p1 = CreatePrintout();
 604     p1->SetHtmlText(htmltext, basepath, true);
 605     wxHtmlPrintout *p2 = CreatePrintout();
 606     p2->SetHtmlText(htmltext, basepath, true);
 607     return DoPreview(p1, p2);
 608 }
 609
 610
 611
 612 bool wxHtmlEasyPrinting::PrintFile(const wxString &htmlfile)
 613 {
 614     wxHtmlPrintout *p = CreatePrintout();
 615     p->SetHtmlFile(htmlfile);
 616     bool ret = DoPrint(p);
 617     delete p;
 618     return ret;
 619 }
 620
 621
 622
 623 bool wxHtmlEasyPrinting::PrintText(const wxString &htmltext, const wxString &basepath)
 624 {
 625     wxHtmlPrintout *p = CreatePrintout();
 626     p->SetHtmlText(htmltext, basepath, true);
 627     bool ret = DoPrint(p);
 628     delete p;
 629     return ret;
 630 }
 631
 632
 633
 634 bool wxHtmlEasyPrinting::DoPreview(wxHtmlPrintout *printout1, wxHtmlPrintout *printout2)
 635 {
 636     // Pass two printout objects: for preview, and possible printing.
 637     wxPrintDialogData printDialogData(*GetPrintData());
 638     wxPrintPreview *preview = new wxPrintPreview(printout1, printout2, &printDialogData);
 639     if (!preview->Ok())
 640     {
 641         delete preview;
 642         return false;
 643     }
 644
 645     wxPreviewFrame *frame = new wxPreviewFrame(preview, m_ParentWindow,
 646                                                m_Name + _(" Preview"),
 647                                                wxPoint(100, 100), wxSize(650, 500));
 648     frame->Centre(wxBOTH);
 649     frame->Initialize();
 650     frame->Show(true);
 651     return true;
 652 }
 653
 654
 655
 656 bool wxHtmlEasyPrinting::DoPrint(wxHtmlPrintout *printout)
 657 {
 658     wxPrintDialogData printDialogData(*GetPrintData());
 659     wxPrinter printer(&printDialogData);
 660
 661     if (!printer.Print(m_ParentWindow, printout, true))
 662     {
 663         return false;
 664     }
 665
 666     (*GetPrintData()) = printer.GetPrintDialogData().GetPrintData();
 667     return true;
 668 }
 669
 670
 671
 672
 673 void wxHtmlEasyPrinting::PageSetup()
 674 {
 675     if (!GetPrintData()->Ok())
 676     {
 677         wxLogError(_("There was a problem during page setup: you may need to set a default printer."));
 678         return;
 679     }
 680
 681     m_PageSetupData->SetPrintData(*GetPrintData());
 682     wxPageSetupDialog pageSetupDialog(m_ParentWindow, m_PageSetupData);
 683
 684     if (pageSetupDialog.ShowModal() == wxID_OK)
 685     {
 686         (*GetPrintData()) = pageSetupDialog.GetPageSetupData().GetPrintData();
 687         (*m_PageSetupData) = pageSetupDialog.GetPageSetupData();
 688     }
 689 }
 690
 691
 692
 693 void wxHtmlEasyPrinting::SetHeader(const wxString& header, int pg)
 694 {
 695     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 696         m_Headers[0] = header;
 697     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 698         m_Headers[1] = header;
 699 }
 700
 701
 702
 703 void wxHtmlEasyPrinting::SetFooter(const wxString& footer, int pg)
 704 {
 705     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 706         m_Footers[0] = footer;
 707     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 708         m_Footers[1] = footer;
 709 }
 710
 711
 712 void wxHtmlEasyPrinting::SetFonts(const wxString& normal_face, const wxString& fixed_face,
 713                                   const int *sizes)
 714 {
 715     m_fontMode = FontMode_Explicit;
 716     m_FontFaceNormal = normal_face;
 717     m_FontFaceFixed = fixed_face;
 718
 719     if (sizes)
 720     {
 721         m_FontsSizes = m_FontsSizesArr;
 722         for (int i = 0; i < 7; i++) m_FontsSizes[i] = sizes[i];
 723     }
 724     else
 725         m_FontsSizes = NULL;
 726 }
 727
 728 void wxHtmlEasyPrinting::SetStandardFonts(int size,
 729                                           const wxString& normal_face,
 730                                           const wxString& fixed_face)
 731 {
 732     m_fontMode = FontMode_Standard;
 733     m_FontFaceNormal = normal_face;
 734     m_FontFaceFixed = fixed_face;
 735     m_FontsSizesArr[0] = size;
 736 }
 737
 738
 739 wxHtmlPrintout *wxHtmlEasyPrinting::CreatePrintout()
 740 {
 741     wxHtmlPrintout *p = new wxHtmlPrintout(m_Name);
 742
 743     if (m_fontMode == FontMode_Explicit)
 744     {
 745         p->SetFonts(m_FontFaceNormal, m_FontFaceFixed, m_FontsSizes);
 746     }
 747     else // FontMode_Standard
 748     {
 749         p->SetStandardFonts(m_FontsSizesArr[0],
 750                             m_FontFaceNormal, m_FontFaceFixed);
 751     }
 752
 753     p->SetHeader(m_Headers[0], wxPAGE_EVEN);
 754     p->SetHeader(m_Headers[1], wxPAGE_ODD);
 755     p->SetFooter(m_Footers[0], wxPAGE_EVEN);
 756     p->SetFooter(m_Footers[1], wxPAGE_ODD);
 757
 758     p->SetMargins(m_PageSetupData->GetMarginTopLeft().y,
 759                     m_PageSetupData->GetMarginBottomRight().y,
 760                     m_PageSetupData->GetMarginTopLeft().x,
 761                     m_PageSetupData->GetMarginBottomRight().x);
 762
 763     return p;
 764 }
 765
 766 // A module to allow initialization/cleanup
 767 // without calling these functions from app.cpp or from
 768 // the user's application.
 769
 770 class wxHtmlPrintingModule: public wxModule
 771 {
 772 DECLARE_DYNAMIC_CLASS(wxHtmlPrintingModule)
 773 public:
 774     wxHtmlPrintingModule() : wxModule() {}
 775     bool OnInit() { return true; }
 776     void OnExit() { wxHtmlPrintout::CleanUpStatics(); }
 777 };
 778
 779 IMPLEMENT_DYNAMIC_CLASS(wxHtmlPrintingModule, wxModule)
 780
 781
 782 // This hack forces the linker to always link in m_* files
 783 // (wxHTML doesn't work without handlers from these files)
 784 #include "wx/html/forcelnk.h"
 785 FORCE_WXHTML_MODULES()
 786
 787 #endif // wxUSE_HTML & wxUSE_PRINTING_ARCHITECTURE