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(_("&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, scr_w, scr_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     wxDisplaySize(&scr_w, &scr_h);
 255     GetDC()->GetSize(&dc_w, &dc_h);
 256
 257     GetDC()->SetUserScale((double)dc_w / (double)pageWidth,
 258                           (double)dc_h / (double)pageHeight);
 259
 260     /* prepare headers/footers renderer: */
 261
 262     m_RendererHdr->SetDC(GetDC(), (double)ppiPrinterY / (double)ppiScreenY);
 263     m_RendererHdr->SetSize((int) (ppmm_h * (mm_w - m_MarginLeft - m_MarginRight)),
 264                           (int) (ppmm_v * (mm_h - m_MarginTop - m_MarginBottom)));
 265     if (m_Headers[0] != wxEmptyString)
 266     {
 267         m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[0], 1));
 268         m_HeaderHeight = m_RendererHdr->GetTotalHeight();
 269     }
 270     else if (m_Headers[1] != wxEmptyString)
 271     {
 272         m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[1], 1));
 273         m_HeaderHeight = m_RendererHdr->GetTotalHeight();
 274     }
 275     if (m_Footers[0] != wxEmptyString)
 276     {
 277         m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[0], 1));
 278         m_FooterHeight = m_RendererHdr->GetTotalHeight();
 279     }
 280     else if (m_Footers[1] != wxEmptyString)
 281     {
 282         m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[1], 1));
 283         m_FooterHeight = m_RendererHdr->GetTotalHeight();
 284     }
 285
 286     /* prepare main renderer: */
 287     m_Renderer->SetDC(GetDC(), (double)ppiPrinterY / (double)ppiScreenY);
 288
 289     const int printAreaW = int(ppmm_h * (mm_w - m_MarginLeft - m_MarginRight));
 290     int printAreaH = int(ppmm_v * (mm_h - m_MarginTop - m_MarginBottom));
 291     if ( m_HeaderHeight )
 292         printAreaH -= int(m_HeaderHeight + m_MarginSpace * ppmm_v);
 293     if ( m_FooterHeight )
 294         printAreaH -= int(m_FooterHeight + m_MarginSpace * ppmm_v);
 295
 296     m_Renderer->SetSize(printAreaW, printAreaH);
 297     m_Renderer->SetHtmlText(m_Document, m_BasePath, m_BasePathIsDir);
 298
 299     if ( CheckFit(wxSize(printAreaW, printAreaH),
 300                   wxSize(m_Renderer->GetTotalWidth(),
 301                          m_Renderer->GetTotalHeight())) )
 302     {
 303         // do paginate the document
 304         CountPages();
 305     }
 306     //else: if we don't call CountPages() m_PageBreaks remains empty and our
 307     //      GetPageInfo() will return 0 as max page and so nothing will be
 308     //      printed
 309 }
 310
 311 bool wxHtmlPrintout::OnBeginDocument(int startPage, int endPage)
 312 {
 313     if (!wxPrintout::OnBeginDocument(startPage, endPage)) return false;
 314
 315     return true;
 316 }
 317
 318
 319 bool wxHtmlPrintout::OnPrintPage(int page)
 320 {
 321     wxDC *dc = GetDC();
 322     if (dc && dc->IsOk())
 323     {
 324         if (HasPage(page))
 325             RenderPage(dc, page);
 326         return true;
 327     }
 328     else return false;
 329 }
 330
 331
 332 void wxHtmlPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo)
 333 {
 334     *minPage = 1;
 335     if ( m_NumPages >= (signed)m_PageBreaks.GetCount()-1)
 336         *maxPage = m_NumPages;
 337     else
 338         *maxPage = (signed)m_PageBreaks.GetCount()-1;
 339     *selPageFrom = 1;
 340     *selPageTo = (signed)m_PageBreaks.GetCount()-1;
 341 }
 342
 343
 344
 345 bool wxHtmlPrintout::HasPage(int pageNum)
 346 {
 347     return pageNum > 0 && (unsigned)pageNum < m_PageBreaks.GetCount();
 348 }
 349
 350
 351
 352 void wxHtmlPrintout::SetHtmlText(const wxString& html, const wxString &basepath, bool isdir)
 353 {
 354     m_Document = html;
 355     m_BasePath = basepath;
 356     m_BasePathIsDir = isdir;
 357 }
 358
 359 void wxHtmlPrintout::SetHtmlFile(const wxString& htmlfile)
 360 {
 361     wxFileSystem fs;
 362     wxFSFile *ff;
 363
 364     if (wxFileExists(htmlfile))
 365         ff = fs.OpenFile(wxFileSystem::FileNameToURL(htmlfile));
 366     else
 367         ff = fs.OpenFile(htmlfile);
 368
 369     if (ff == NULL)
 370     {
 371         wxLogError(htmlfile + _(": file does not exist!"));
 372         return;
 373     }
 374
 375     bool done = false;
 376     wxHtmlFilterHTML defaultFilter;
 377     wxString doc;
 378
 379     wxList::compatibility_iterator node = m_Filters.GetFirst();
 380     while (node)
 381     {
 382         wxHtmlFilter *h = (wxHtmlFilter*) node->GetData();
 383         if (h->CanRead(*ff))
 384         {
 385             doc = h->ReadFile(*ff);
 386             done = true;
 387             break;
 388         }
 389         node = node->GetNext();
 390     }
 391
 392     if (!done)
 393         doc = defaultFilter.ReadFile(*ff);
 394
 395     SetHtmlText(doc, htmlfile, false);
 396     delete ff;
 397 }
 398
 399
 400
 401 void wxHtmlPrintout::SetHeader(const wxString& header, int pg)
 402 {
 403     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 404         m_Headers[0] = header;
 405     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 406         m_Headers[1] = header;
 407 }
 408
 409
 410
 411 void wxHtmlPrintout::SetFooter(const wxString& footer, int pg)
 412 {
 413     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 414         m_Footers[0] = footer;
 415     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 416         m_Footers[1] = footer;
 417 }
 418
 419
 420
 421 void wxHtmlPrintout::CountPages()
 422 {
 423     wxBusyCursor wait;
 424     int pageWidth, pageHeight, mm_w, mm_h;
 425     float ppmm_h, ppmm_v;
 426
 427     GetPageSizePixels(&pageWidth, &pageHeight);
 428     GetPageSizeMM(&mm_w, &mm_h);
 429     ppmm_h = (float)pageWidth / mm_w;
 430     ppmm_v = (float)pageHeight / mm_h;
 431
 432     int pos = 0;
 433     m_NumPages = 0;
 434     // m_PageBreaks[0] = 0;
 435
 436     m_PageBreaks.Clear();
 437     m_PageBreaks.Add( 0);
 438     do
 439     {
 440         pos = m_Renderer->Render((int)( ppmm_h * m_MarginLeft),
 441                                  (int) (ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight),
 442                                  m_PageBreaks,
 443                                  pos, true, INT_MAX);
 444         m_PageBreaks.Add( pos);
 445         if( m_PageBreaks.GetCount() > wxHTML_PRINT_MAX_PAGES)
 446         {
 447             wxMessageBox( _("HTML pagination algorithm generated more than the allowed maximum number of pages and it can't continue any longer!"),
 448             _("Warning"), wxCANCEL | wxICON_ERROR );
 449             break;
 450         }
 451     } while (pos < m_Renderer->GetTotalHeight());
 452 }
 453
 454
 455
 456 void wxHtmlPrintout::RenderPage(wxDC *dc, int page)
 457 {
 458     wxBusyCursor wait;
 459
 460     int pageWidth, pageHeight, mm_w, mm_h, scr_w, scr_h, dc_w, dc_h;
 461     float ppmm_h, ppmm_v;
 462
 463     GetPageSizePixels(&pageWidth, &pageHeight);
 464     GetPageSizeMM(&mm_w, &mm_h);
 465     ppmm_h = (float)pageWidth / mm_w;
 466     ppmm_v = (float)pageHeight / mm_h;
 467     wxDisplaySize(&scr_w, &scr_h);
 468     dc->GetSize(&dc_w, &dc_h);
 469
 470     int ppiPrinterX, ppiPrinterY;
 471     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
 472     wxUnusedVar(ppiPrinterX);
 473     int ppiScreenX, ppiScreenY;
 474     GetPPIScreen(&ppiScreenX, &ppiScreenY);
 475     wxUnusedVar(ppiScreenX);
 476
 477     dc->SetUserScale((double)dc_w / (double)pageWidth,
 478                      (double)dc_h / (double)pageHeight);
 479
 480     m_Renderer->SetDC(dc, (double)ppiPrinterY / (double)ppiScreenY);
 481
 482     dc->SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
 483
 484     m_Renderer->Render((int) (ppmm_h * m_MarginLeft),
 485                          (int) (ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight), m_PageBreaks,
 486                          m_PageBreaks[page-1], false, m_PageBreaks[page]-m_PageBreaks[page-1]);
 487
 488
 489     m_RendererHdr->SetDC(dc, (double)ppiPrinterY / (double)ppiScreenY);
 490     if (m_Headers[page % 2] != wxEmptyString)
 491     {
 492         m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[page % 2], page));
 493         m_RendererHdr->Render((int) (ppmm_h * m_MarginLeft), (int) (ppmm_v * m_MarginTop), m_PageBreaks);
 494     }
 495     if (m_Footers[page % 2] != wxEmptyString)
 496     {
 497         m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[page % 2], page));
 498         m_RendererHdr->Render((int) (ppmm_h * m_MarginLeft), (int) (pageHeight - ppmm_v * m_MarginBottom - m_FooterHeight), m_PageBreaks);
 499     }
 500 }
 501
 502
 503
 504 wxString wxHtmlPrintout::TranslateHeader(const wxString& instr, int page)
 505 {
 506     wxString r = instr;
 507     wxString num;
 508
 509     num.Printf(wxT("%i"), page);
 510     r.Replace(wxT("@PAGENUM@"), num);
 511
 512     num.Printf(wxT("%lu"), (unsigned long)(m_PageBreaks.GetCount() - 1));
 513     r.Replace(wxT("@PAGESCNT@"), num);
 514
 515     const wxDateTime now = wxDateTime::Now();
 516     r.Replace(wxT("@DATE@"), now.FormatDate());
 517     r.Replace(wxT("@TIME@"), now.FormatTime());
 518
 519     r.Replace(wxT("@TITLE@"), GetTitle());
 520
 521     return r;
 522 }
 523
 524
 525
 526 void wxHtmlPrintout::SetMargins(float top, float bottom, float left, float right, float spaces)
 527 {
 528     m_MarginTop = top;
 529     m_MarginBottom = bottom;
 530     m_MarginLeft = left;
 531     m_MarginRight = right;
 532     m_MarginSpace = spaces;
 533 }
 534
 535
 536
 537
 538 void wxHtmlPrintout::SetFonts(const wxString& normal_face, const wxString& fixed_face,
 539                               const int *sizes)
 540 {
 541     m_Renderer->SetFonts(normal_face, fixed_face, sizes);
 542     m_RendererHdr->SetFonts(normal_face, fixed_face, sizes);
 543 }
 544
 545 void wxHtmlPrintout::SetStandardFonts(int size,
 546                                       const wxString& normal_face,
 547                                       const wxString& fixed_face)
 548 {
 549     m_Renderer->SetStandardFonts(size, normal_face, fixed_face);
 550     m_RendererHdr->SetStandardFonts(size, normal_face, fixed_face);
 551 }
 552
 553
 554
 555 //----------------------------------------------------------------------------
 556 // wxHtmlEasyPrinting
 557 //----------------------------------------------------------------------------
 558
 559
 560 wxHtmlEasyPrinting::wxHtmlEasyPrinting(const wxString& name, wxWindow *parentWindow)
 561 {
 562     m_ParentWindow = parentWindow;
 563     m_Name = name;
 564     m_PrintData = NULL;
 565     m_PageSetupData = new wxPageSetupDialogData;
 566     m_Headers[0] = m_Headers[1] = m_Footers[0] = m_Footers[1] = wxEmptyString;
 567
 568     m_PageSetupData->EnableMargins(true);
 569     m_PageSetupData->SetMarginTopLeft(wxPoint(25, 25));
 570     m_PageSetupData->SetMarginBottomRight(wxPoint(25, 25));
 571
 572     SetStandardFonts(DEFAULT_PRINT_FONT_SIZE);
 573 }
 574
 575
 576
 577 wxHtmlEasyPrinting::~wxHtmlEasyPrinting()
 578 {
 579     delete m_PrintData;
 580     delete m_PageSetupData;
 581 }
 582
 583
 584 wxPrintData *wxHtmlEasyPrinting::GetPrintData()
 585 {
 586     if (m_PrintData == NULL)
 587         m_PrintData = new wxPrintData();
 588     return m_PrintData;
 589 }
 590
 591
 592 bool wxHtmlEasyPrinting::PreviewFile(const wxString &htmlfile)
 593 {
 594     wxHtmlPrintout *p1 = CreatePrintout();
 595     p1->SetHtmlFile(htmlfile);
 596     wxHtmlPrintout *p2 = CreatePrintout();
 597     p2->SetHtmlFile(htmlfile);
 598     return DoPreview(p1, p2);
 599 }
 600
 601
 602
 603 bool wxHtmlEasyPrinting::PreviewText(const wxString &htmltext, const wxString &basepath)
 604 {
 605     wxHtmlPrintout *p1 = CreatePrintout();
 606     p1->SetHtmlText(htmltext, basepath, true);
 607     wxHtmlPrintout *p2 = CreatePrintout();
 608     p2->SetHtmlText(htmltext, basepath, true);
 609     return DoPreview(p1, p2);
 610 }
 611
 612
 613
 614 bool wxHtmlEasyPrinting::PrintFile(const wxString &htmlfile)
 615 {
 616     wxHtmlPrintout *p = CreatePrintout();
 617     p->SetHtmlFile(htmlfile);
 618     bool ret = DoPrint(p);
 619     delete p;
 620     return ret;
 621 }
 622
 623
 624
 625 bool wxHtmlEasyPrinting::PrintText(const wxString &htmltext, const wxString &basepath)
 626 {
 627     wxHtmlPrintout *p = CreatePrintout();
 628     p->SetHtmlText(htmltext, basepath, true);
 629     bool ret = DoPrint(p);
 630     delete p;
 631     return ret;
 632 }
 633
 634
 635
 636 bool wxHtmlEasyPrinting::DoPreview(wxHtmlPrintout *printout1, wxHtmlPrintout *printout2)
 637 {
 638     // Pass two printout objects: for preview, and possible printing.
 639     wxPrintDialogData printDialogData(*GetPrintData());
 640     wxPrintPreview *preview = new wxPrintPreview(printout1, printout2, &printDialogData);
 641     if (!preview->Ok())
 642     {
 643         delete preview;
 644         return false;
 645     }
 646
 647     wxPreviewFrame *frame = new wxPreviewFrame(preview, m_ParentWindow,
 648                                                m_Name + _(" Preview"),
 649                                                wxPoint(100, 100), wxSize(650, 500));
 650     frame->Centre(wxBOTH);
 651     frame->Initialize();
 652     frame->Show(true);
 653     return true;
 654 }
 655
 656
 657
 658 bool wxHtmlEasyPrinting::DoPrint(wxHtmlPrintout *printout)
 659 {
 660     wxPrintDialogData printDialogData(*GetPrintData());
 661     wxPrinter printer(&printDialogData);
 662
 663     if (!printer.Print(m_ParentWindow, printout, true))
 664     {
 665         return false;
 666     }
 667
 668     (*GetPrintData()) = printer.GetPrintDialogData().GetPrintData();
 669     return true;
 670 }
 671
 672
 673
 674
 675 void wxHtmlEasyPrinting::PageSetup()
 676 {
 677     if (!GetPrintData()->Ok())
 678     {
 679         wxLogError(_("There was a problem during page setup: you may need to set a default printer."));
 680         return;
 681     }
 682
 683     m_PageSetupData->SetPrintData(*GetPrintData());
 684     wxPageSetupDialog pageSetupDialog(m_ParentWindow, m_PageSetupData);
 685
 686     if (pageSetupDialog.ShowModal() == wxID_OK)
 687     {
 688         (*GetPrintData()) = pageSetupDialog.GetPageSetupData().GetPrintData();
 689         (*m_PageSetupData) = pageSetupDialog.GetPageSetupData();
 690     }
 691 }
 692
 693
 694
 695 void wxHtmlEasyPrinting::SetHeader(const wxString& header, int pg)
 696 {
 697     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 698         m_Headers[0] = header;
 699     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 700         m_Headers[1] = header;
 701 }
 702
 703
 704
 705 void wxHtmlEasyPrinting::SetFooter(const wxString& footer, int pg)
 706 {
 707     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 708         m_Footers[0] = footer;
 709     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 710         m_Footers[1] = footer;
 711 }
 712
 713
 714 void wxHtmlEasyPrinting::SetFonts(const wxString& normal_face, const wxString& fixed_face,
 715                                   const int *sizes)
 716 {
 717     m_fontMode = FontMode_Explicit;
 718     m_FontFaceNormal = normal_face;
 719     m_FontFaceFixed = fixed_face;
 720
 721     if (sizes)
 722     {
 723         m_FontsSizes = m_FontsSizesArr;
 724         for (int i = 0; i < 7; i++) m_FontsSizes[i] = sizes[i];
 725     }
 726     else
 727         m_FontsSizes = NULL;
 728 }
 729
 730 void wxHtmlEasyPrinting::SetStandardFonts(int size,
 731                                           const wxString& normal_face,
 732                                           const wxString& fixed_face)
 733 {
 734     m_fontMode = FontMode_Standard;
 735     m_FontFaceNormal = normal_face;
 736     m_FontFaceFixed = fixed_face;
 737     m_FontsSizesArr[0] = size;
 738 }
 739
 740
 741 wxHtmlPrintout *wxHtmlEasyPrinting::CreatePrintout()
 742 {
 743     wxHtmlPrintout *p = new wxHtmlPrintout(m_Name);
 744
 745     if (m_fontMode == FontMode_Explicit)
 746     {
 747         p->SetFonts(m_FontFaceNormal, m_FontFaceFixed, m_FontsSizes);
 748     }
 749     else // FontMode_Standard
 750     {
 751         p->SetStandardFonts(m_FontsSizesArr[0],
 752                             m_FontFaceNormal, m_FontFaceFixed);
 753     }
 754
 755     p->SetHeader(m_Headers[0], wxPAGE_EVEN);
 756     p->SetHeader(m_Headers[1], wxPAGE_ODD);
 757     p->SetFooter(m_Footers[0], wxPAGE_EVEN);
 758     p->SetFooter(m_Footers[1], wxPAGE_ODD);
 759
 760     p->SetMargins(m_PageSetupData->GetMarginTopLeft().y,
 761                     m_PageSetupData->GetMarginBottomRight().y,
 762                     m_PageSetupData->GetMarginTopLeft().x,
 763                     m_PageSetupData->GetMarginBottomRight().x);
 764
 765     return p;
 766 }
 767
 768 // A module to allow initialization/cleanup
 769 // without calling these functions from app.cpp or from
 770 // the user's application.
 771
 772 class wxHtmlPrintingModule: public wxModule
 773 {
 774 DECLARE_DYNAMIC_CLASS(wxHtmlPrintingModule)
 775 public:
 776     wxHtmlPrintingModule() : wxModule() {}
 777     bool OnInit() { return true; }
 778     void OnExit() { wxHtmlPrintout::CleanUpStatics(); }
 779 };
 780
 781 IMPLEMENT_DYNAMIC_CLASS(wxHtmlPrintingModule, wxModule)
 782
 783
 784 // This hack forces the linker to always link in m_* files
 785 // (wxHTML doesn't work without handlers from these files)
 786 #include "wx/html/forcelnk.h"
 787 FORCE_WXHTML_MODULES()
 788
 789 #endif // wxUSE_HTML & wxUSE_PRINTING_ARCHITECTURE