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 // CSS specification offer following guidance on dealing with pixel sizes
  41 // when printing at
  42 // http://www.w3.org/TR/2004/CR-CSS21-20040225/syndata.html#length-units:
  43 //
  44 //      Pixel units are relative to the resolution of the viewing device, i.e.,
  45 //      most often a computer display. If the pixel density of the output
  46 //      device is very different from that of a typical computer display, the
  47 //      user agent should rescale pixel values. It is recommended that the [
  48 //      reference pixel] be the visual angle of one pixel on a device with a
  49 //      pixel density of 96dpi and a distance from the reader of an arm's
  50 //      length. For a nominal arm's length of 28 inches, the visual angle is
  51 //      therefore about 0.0213 degrees.
  52 //
  53 //      For reading at arm's length, 1px thus corresponds to about 0.26 mm
  54 //      (1/96 inch). When printed on a laser printer, meant for reading at a
  55 //      little less than arm's length (55 cm, 21 inches), 1px is about 0.20 mm.
  56 //      On a 300 dots-per-inch (dpi) printer, that may be rounded up to 3 dots
  57 //      (0.25 mm); on a 600 dpi printer, it can be rounded to 5 dots.
  58 //
  59 // See also http://trac.wxwidgets.org/ticket/10942.
  60 #define TYPICAL_SCREEN_DPI  96.0
  61
  62 //--------------------------------------------------------------------------------
  63 // wxHtmlDCRenderer
  64 //--------------------------------------------------------------------------------
  65
  66
  67 wxHtmlDCRenderer::wxHtmlDCRenderer() : wxObject()
  68 {
  69     m_DC = NULL;
  70     m_Width = m_Height = 0;
  71     m_Cells = NULL;
  72     m_Parser = new wxHtmlWinParser();
  73     m_FS = new wxFileSystem();
  74     m_Parser->SetFS(m_FS);
  75     SetStandardFonts(DEFAULT_PRINT_FONT_SIZE);
  76 }
  77
  78
  79
  80 wxHtmlDCRenderer::~wxHtmlDCRenderer()
  81 {
  82     if (m_Cells) delete m_Cells;
  83     if (m_Parser) delete m_Parser;
  84     if (m_FS) delete m_FS;
  85 }
  86
  87
  88
  89 void wxHtmlDCRenderer::SetDC(wxDC *dc, double pixel_scale, double font_scale)
  90 {
  91     m_DC = dc;
  92     m_Parser->SetDC(m_DC, pixel_scale, font_scale);
  93 }
  94
  95
  96
  97 void wxHtmlDCRenderer::SetSize(int width, int height)
  98 {
  99     wxCHECK_RET( width, "width must be non-zero" );
 100     wxCHECK_RET( height, "height must be non-zero" );
 101
 102     m_Width = width;
 103     m_Height = height;
 104 }
 105
 106
 107 void wxHtmlDCRenderer::SetHtmlText(const wxString& html, const wxString& basepath, bool isdir)
 108 {
 109     wxCHECK_RET( m_DC, "SetDC() must be called before SetHtmlText()" );
 110     wxCHECK_RET( m_Width, "SetSize() must be called before SetHtmlText()" );
 111
 112     wxDELETE(m_Cells);
 113
 114     m_FS->ChangePathTo(basepath, isdir);
 115     m_Cells = (wxHtmlContainerCell*) m_Parser->Parse(html);
 116     m_Cells->SetIndent(0, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
 117     m_Cells->Layout(m_Width);
 118 }
 119
 120
 121 void wxHtmlDCRenderer::SetFonts(const wxString& normal_face, const wxString& fixed_face,
 122                                 const int *sizes)
 123 {
 124     m_Parser->SetFonts(normal_face, fixed_face, sizes);
 125
 126     if ( m_Cells )
 127         m_Cells->Layout(m_Width);
 128     // else: SetHtmlText() not yet called, no need for relayout
 129 }
 130
 131 void wxHtmlDCRenderer::SetStandardFonts(int size,
 132                                         const wxString& normal_face,
 133                                         const wxString& fixed_face)
 134 {
 135     m_Parser->SetStandardFonts(size, normal_face, fixed_face);
 136
 137     if ( m_Cells )
 138         m_Cells->Layout(m_Width);
 139     // else: SetHtmlText() not yet called, no need for relayout
 140 }
 141
 142 int wxHtmlDCRenderer::Render(int x, int y,
 143                              wxArrayInt& known_pagebreaks,
 144                              int from, int dont_render, int to)
 145 {
 146     wxCHECK_MSG( m_Cells, 0, "SetHtmlText() must be called before Render()" );
 147     wxCHECK_MSG( m_DC, 0, "SetDC() must be called before Render()" );
 148
 149     int pbreak, hght;
 150
 151     pbreak = (int)(from + m_Height);
 152     while (m_Cells->AdjustPagebreak(&pbreak, known_pagebreaks)) {}
 153     hght = pbreak - from;
 154     if(to < hght)
 155         hght = to;
 156
 157     if (!dont_render)
 158     {
 159         wxHtmlRenderingInfo rinfo;
 160         wxDefaultHtmlRenderingStyle rstyle;
 161         rinfo.SetStyle(&rstyle);
 162         m_DC->SetBrush(*wxWHITE_BRUSH);
 163         m_DC->SetClippingRegion(x, y, m_Width, hght);
 164         m_Cells->Draw(*m_DC,
 165                       x, (y - from),
 166                       y, y + hght,
 167                       rinfo);
 168         m_DC->DestroyClippingRegion();
 169     }
 170
 171     if (pbreak < m_Cells->GetHeight()) return pbreak;
 172     else return GetTotalHeight();
 173 }
 174
 175 int wxHtmlDCRenderer::GetTotalWidth() const
 176 {
 177     return m_Cells ? m_Cells->GetWidth() : 0;
 178 }
 179
 180 int wxHtmlDCRenderer::GetTotalHeight() const
 181 {
 182     return m_Cells ? m_Cells->GetHeight() : 0;
 183 }
 184
 185
 186 //--------------------------------------------------------------------------------
 187 // wxHtmlPrintout
 188 //--------------------------------------------------------------------------------
 189
 190
 191 wxList wxHtmlPrintout::m_Filters;
 192
 193 wxHtmlPrintout::wxHtmlPrintout(const wxString& title) : wxPrintout(title)
 194 {
 195     m_Renderer = new wxHtmlDCRenderer;
 196     m_RendererHdr = new wxHtmlDCRenderer;
 197     m_NumPages = wxHTML_PRINT_MAX_PAGES;
 198     m_Document = m_BasePath = wxEmptyString; m_BasePathIsDir = true;
 199     m_Headers[0] = m_Headers[1] = wxEmptyString;
 200     m_Footers[0] = m_Footers[1] = wxEmptyString;
 201     m_HeaderHeight = m_FooterHeight = 0;
 202     SetMargins(); // to default values
 203     SetStandardFonts(DEFAULT_PRINT_FONT_SIZE);
 204 }
 205
 206
 207
 208 wxHtmlPrintout::~wxHtmlPrintout()
 209 {
 210     delete m_Renderer;
 211     delete m_RendererHdr;
 212 }
 213
 214 void wxHtmlPrintout::CleanUpStatics()
 215 {
 216     WX_CLEAR_LIST(wxList, m_Filters);
 217 }
 218
 219 // Adds input filter
 220 void wxHtmlPrintout::AddFilter(wxHtmlFilter *filter)
 221 {
 222     m_Filters.Append(filter);
 223 }
 224
 225 bool
 226 wxHtmlPrintout::CheckFit(const wxSize& pageArea, const wxSize& docArea) const
 227 {
 228     if ( docArea.x > pageArea.x )
 229     {
 230         wxMessageDialog
 231             dlg
 232             (
 233                 NULL,
 234                 wxString::Format
 235                 (
 236                  _("The document \"%s\" doesn't fit on the page "
 237                    "horizontally and will be truncated if printed.\n"
 238                    "\n"
 239                    "Would you like to proceed with printing it nevertheless?"),
 240                  GetTitle()
 241                 ),
 242                 _("Printing"),
 243                 wxOK | wxCANCEL | wxCANCEL_DEFAULT | wxICON_QUESTION
 244             );
 245         dlg.SetExtendedMessage
 246             (
 247                 _("If possible, try changing the layout parameters to "
 248                   "make the printout more narrow.")
 249             );
 250         dlg.SetOKLabel(wxID_PRINT);
 251
 252         if ( dlg.ShowModal() == wxID_CANCEL )
 253             return false;
 254     }
 255
 256     return true;
 257 }
 258
 259 void wxHtmlPrintout::OnPreparePrinting()
 260 {
 261     int pageWidth, pageHeight, mm_w, mm_h, dc_w, dc_h;
 262     float ppmm_h, ppmm_v;
 263
 264     GetPageSizePixels(&pageWidth, &pageHeight);
 265     GetPageSizeMM(&mm_w, &mm_h);
 266     ppmm_h = (float)pageWidth / mm_w;
 267     ppmm_v = (float)pageHeight / mm_h;
 268
 269     int ppiPrinterX, ppiPrinterY;
 270     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
 271     wxUnusedVar(ppiPrinterX);
 272     int ppiScreenX, ppiScreenY;
 273     GetPPIScreen(&ppiScreenX, &ppiScreenY);
 274     wxUnusedVar(ppiScreenX);
 275
 276     GetDC()->GetSize(&dc_w, &dc_h);
 277
 278     GetDC()->SetUserScale((double)dc_w / (double)pageWidth,
 279                           (double)dc_h / (double)pageHeight);
 280
 281     /* prepare headers/footers renderer: */
 282
 283     m_RendererHdr->SetDC(GetDC(),
 284                          (double)ppiPrinterY / TYPICAL_SCREEN_DPI,
 285                          (double)ppiPrinterY / (double)ppiScreenY);
 286     m_RendererHdr->SetSize((int) (ppmm_h * (mm_w - m_MarginLeft - m_MarginRight)),
 287                           (int) (ppmm_v * (mm_h - m_MarginTop - m_MarginBottom)));
 288     if (m_Headers[0] != wxEmptyString)
 289     {
 290         m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[0], 1));
 291         m_HeaderHeight = m_RendererHdr->GetTotalHeight();
 292     }
 293     else if (m_Headers[1] != wxEmptyString)
 294     {
 295         m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[1], 1));
 296         m_HeaderHeight = m_RendererHdr->GetTotalHeight();
 297     }
 298     if (m_Footers[0] != wxEmptyString)
 299     {
 300         m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[0], 1));
 301         m_FooterHeight = m_RendererHdr->GetTotalHeight();
 302     }
 303     else if (m_Footers[1] != wxEmptyString)
 304     {
 305         m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[1], 1));
 306         m_FooterHeight = m_RendererHdr->GetTotalHeight();
 307     }
 308
 309     /* prepare main renderer: */
 310     m_Renderer->SetDC(GetDC(),
 311                       (double)ppiPrinterY / TYPICAL_SCREEN_DPI,
 312                       (double)ppiPrinterY / (double)ppiScreenY);
 313
 314     const int printAreaW = int(ppmm_h * (mm_w - m_MarginLeft - m_MarginRight));
 315     int printAreaH = int(ppmm_v * (mm_h - m_MarginTop - m_MarginBottom));
 316     if ( m_HeaderHeight )
 317         printAreaH -= int(m_HeaderHeight + m_MarginSpace * ppmm_v);
 318     if ( m_FooterHeight )
 319         printAreaH -= int(m_FooterHeight + m_MarginSpace * ppmm_v);
 320
 321     m_Renderer->SetSize(printAreaW, printAreaH);
 322     m_Renderer->SetHtmlText(m_Document, m_BasePath, m_BasePathIsDir);
 323
 324     if ( CheckFit(wxSize(printAreaW, printAreaH),
 325                   wxSize(m_Renderer->GetTotalWidth(),
 326                          m_Renderer->GetTotalHeight())) )
 327     {
 328         // do paginate the document
 329         CountPages();
 330     }
 331     //else: if we don't call CountPages() m_PageBreaks remains empty and our
 332     //      GetPageInfo() will return 0 as max page and so nothing will be
 333     //      printed
 334 }
 335
 336 bool wxHtmlPrintout::OnBeginDocument(int startPage, int endPage)
 337 {
 338     if (!wxPrintout::OnBeginDocument(startPage, endPage)) return false;
 339
 340     return true;
 341 }
 342
 343
 344 bool wxHtmlPrintout::OnPrintPage(int page)
 345 {
 346     wxDC *dc = GetDC();
 347     if (dc && dc->IsOk())
 348     {
 349         if (HasPage(page))
 350             RenderPage(dc, page);
 351         return true;
 352     }
 353     else return false;
 354 }
 355
 356
 357 void wxHtmlPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo)
 358 {
 359     *minPage = 1;
 360     if ( m_NumPages >= (signed)m_PageBreaks.GetCount()-1)
 361         *maxPage = m_NumPages;
 362     else
 363         *maxPage = (signed)m_PageBreaks.GetCount()-1;
 364     *selPageFrom = 1;
 365     *selPageTo = (signed)m_PageBreaks.GetCount()-1;
 366 }
 367
 368
 369
 370 bool wxHtmlPrintout::HasPage(int pageNum)
 371 {
 372     return pageNum > 0 && (unsigned)pageNum < m_PageBreaks.GetCount();
 373 }
 374
 375
 376
 377 void wxHtmlPrintout::SetHtmlText(const wxString& html, const wxString &basepath, bool isdir)
 378 {
 379     m_Document = html;
 380     m_BasePath = basepath;
 381     m_BasePathIsDir = isdir;
 382 }
 383
 384 void wxHtmlPrintout::SetHtmlFile(const wxString& htmlfile)
 385 {
 386     wxFileSystem fs;
 387     wxFSFile *ff;
 388
 389     if (wxFileExists(htmlfile))
 390         ff = fs.OpenFile(wxFileSystem::FileNameToURL(htmlfile));
 391     else
 392         ff = fs.OpenFile(htmlfile);
 393
 394     if (ff == NULL)
 395     {
 396         wxLogError(htmlfile + _(": file does not exist!"));
 397         return;
 398     }
 399
 400     bool done = false;
 401     wxHtmlFilterHTML defaultFilter;
 402     wxString doc;
 403
 404     wxList::compatibility_iterator node = m_Filters.GetFirst();
 405     while (node)
 406     {
 407         wxHtmlFilter *h = (wxHtmlFilter*) node->GetData();
 408         if (h->CanRead(*ff))
 409         {
 410             doc = h->ReadFile(*ff);
 411             done = true;
 412             break;
 413         }
 414         node = node->GetNext();
 415     }
 416
 417     if (!done)
 418         doc = defaultFilter.ReadFile(*ff);
 419
 420     SetHtmlText(doc, htmlfile, false);
 421     delete ff;
 422 }
 423
 424
 425
 426 void wxHtmlPrintout::SetHeader(const wxString& header, int pg)
 427 {
 428     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 429         m_Headers[0] = header;
 430     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 431         m_Headers[1] = header;
 432 }
 433
 434
 435
 436 void wxHtmlPrintout::SetFooter(const wxString& footer, int pg)
 437 {
 438     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 439         m_Footers[0] = footer;
 440     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 441         m_Footers[1] = footer;
 442 }
 443
 444
 445
 446 void wxHtmlPrintout::CountPages()
 447 {
 448     wxBusyCursor wait;
 449     int pageWidth, pageHeight, mm_w, mm_h;
 450     float ppmm_h, ppmm_v;
 451
 452     GetPageSizePixels(&pageWidth, &pageHeight);
 453     GetPageSizeMM(&mm_w, &mm_h);
 454     ppmm_h = (float)pageWidth / mm_w;
 455     ppmm_v = (float)pageHeight / mm_h;
 456
 457     int pos = 0;
 458     m_NumPages = 0;
 459     // m_PageBreaks[0] = 0;
 460
 461     m_PageBreaks.Clear();
 462     m_PageBreaks.Add( 0);
 463     do
 464     {
 465         pos = m_Renderer->Render((int)( ppmm_h * m_MarginLeft),
 466                                  (int) (ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight),
 467                                  m_PageBreaks,
 468                                  pos, true, INT_MAX);
 469         m_PageBreaks.Add( pos);
 470         if( m_PageBreaks.GetCount() > wxHTML_PRINT_MAX_PAGES)
 471         {
 472             wxMessageBox( _("HTML pagination algorithm generated more than the allowed maximum number of pages and it can't continue any longer!"),
 473             _("Warning"), wxCANCEL | wxICON_ERROR );
 474             break;
 475         }
 476     } while (pos < m_Renderer->GetTotalHeight());
 477 }
 478
 479
 480
 481 void wxHtmlPrintout::RenderPage(wxDC *dc, int page)
 482 {
 483     wxBusyCursor wait;
 484
 485     int pageWidth, pageHeight, mm_w, mm_h, dc_w, dc_h;
 486     float ppmm_h, ppmm_v;
 487
 488     GetPageSizePixels(&pageWidth, &pageHeight);
 489     GetPageSizeMM(&mm_w, &mm_h);
 490     ppmm_h = (float)pageWidth / mm_w;
 491     ppmm_v = (float)pageHeight / mm_h;
 492     dc->GetSize(&dc_w, &dc_h);
 493
 494     int ppiPrinterX, ppiPrinterY;
 495     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
 496     wxUnusedVar(ppiPrinterX);
 497     int ppiScreenX, ppiScreenY;
 498     GetPPIScreen(&ppiScreenX, &ppiScreenY);
 499     wxUnusedVar(ppiScreenX);
 500
 501     dc->SetUserScale((double)dc_w / (double)pageWidth,
 502                      (double)dc_h / (double)pageHeight);
 503
 504     m_Renderer->SetDC(dc,
 505                       (double)ppiPrinterY / TYPICAL_SCREEN_DPI,
 506                       (double)ppiPrinterY / (double)ppiScreenY);
 507
 508     dc->SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
 509
 510     m_Renderer->Render((int) (ppmm_h * m_MarginLeft),
 511                          (int) (ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight), m_PageBreaks,
 512                          m_PageBreaks[page-1], false, m_PageBreaks[page]-m_PageBreaks[page-1]);
 513
 514
 515     m_RendererHdr->SetDC(dc,
 516                          (double)ppiPrinterY / TYPICAL_SCREEN_DPI,
 517                          (double)ppiPrinterY / (double)ppiScreenY);
 518     if (m_Headers[page % 2] != wxEmptyString)
 519     {
 520         m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[page % 2], page));
 521         m_RendererHdr->Render((int) (ppmm_h * m_MarginLeft), (int) (ppmm_v * m_MarginTop), m_PageBreaks);
 522     }
 523     if (m_Footers[page % 2] != wxEmptyString)
 524     {
 525         m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[page % 2], page));
 526         m_RendererHdr->Render((int) (ppmm_h * m_MarginLeft), (int) (pageHeight - ppmm_v * m_MarginBottom - m_FooterHeight), m_PageBreaks);
 527     }
 528 }
 529
 530
 531
 532 wxString wxHtmlPrintout::TranslateHeader(const wxString& instr, int page)
 533 {
 534     wxString r = instr;
 535     wxString num;
 536
 537     num.Printf(wxT("%i"), page);
 538     r.Replace(wxT("@PAGENUM@"), num);
 539
 540     num.Printf(wxT("%lu"), (unsigned long)(m_PageBreaks.GetCount() - 1));
 541     r.Replace(wxT("@PAGESCNT@"), num);
 542
 543     const wxDateTime now = wxDateTime::Now();
 544     r.Replace(wxT("@DATE@"), now.FormatDate());
 545     r.Replace(wxT("@TIME@"), now.FormatTime());
 546
 547     r.Replace(wxT("@TITLE@"), GetTitle());
 548
 549     return r;
 550 }
 551
 552
 553
 554 void wxHtmlPrintout::SetMargins(float top, float bottom, float left, float right, float spaces)
 555 {
 556     m_MarginTop = top;
 557     m_MarginBottom = bottom;
 558     m_MarginLeft = left;
 559     m_MarginRight = right;
 560     m_MarginSpace = spaces;
 561 }
 562
 563
 564
 565
 566 void wxHtmlPrintout::SetFonts(const wxString& normal_face, const wxString& fixed_face,
 567                               const int *sizes)
 568 {
 569     m_Renderer->SetFonts(normal_face, fixed_face, sizes);
 570     m_RendererHdr->SetFonts(normal_face, fixed_face, sizes);
 571 }
 572
 573 void wxHtmlPrintout::SetStandardFonts(int size,
 574                                       const wxString& normal_face,
 575                                       const wxString& fixed_face)
 576 {
 577     m_Renderer->SetStandardFonts(size, normal_face, fixed_face);
 578     m_RendererHdr->SetStandardFonts(size, normal_face, fixed_face);
 579 }
 580
 581
 582
 583 //----------------------------------------------------------------------------
 584 // wxHtmlEasyPrinting
 585 //----------------------------------------------------------------------------
 586
 587
 588 wxHtmlEasyPrinting::wxHtmlEasyPrinting(const wxString& name, wxWindow *parentWindow)
 589 {
 590     m_ParentWindow = parentWindow;
 591     m_Name = name;
 592     m_PrintData = NULL;
 593     m_PageSetupData = new wxPageSetupDialogData;
 594     m_Headers[0] = m_Headers[1] = m_Footers[0] = m_Footers[1] = wxEmptyString;
 595
 596     m_PageSetupData->EnableMargins(true);
 597     m_PageSetupData->SetMarginTopLeft(wxPoint(25, 25));
 598     m_PageSetupData->SetMarginBottomRight(wxPoint(25, 25));
 599
 600     SetStandardFonts(DEFAULT_PRINT_FONT_SIZE);
 601 }
 602
 603
 604
 605 wxHtmlEasyPrinting::~wxHtmlEasyPrinting()
 606 {
 607     delete m_PrintData;
 608     delete m_PageSetupData;
 609 }
 610
 611
 612 wxPrintData *wxHtmlEasyPrinting::GetPrintData()
 613 {
 614     if (m_PrintData == NULL)
 615         m_PrintData = new wxPrintData();
 616     return m_PrintData;
 617 }
 618
 619
 620 bool wxHtmlEasyPrinting::PreviewFile(const wxString &htmlfile)
 621 {
 622     wxHtmlPrintout *p1 = CreatePrintout();
 623     p1->SetHtmlFile(htmlfile);
 624     wxHtmlPrintout *p2 = CreatePrintout();
 625     p2->SetHtmlFile(htmlfile);
 626     return DoPreview(p1, p2);
 627 }
 628
 629
 630
 631 bool wxHtmlEasyPrinting::PreviewText(const wxString &htmltext, const wxString &basepath)
 632 {
 633     wxHtmlPrintout *p1 = CreatePrintout();
 634     p1->SetHtmlText(htmltext, basepath, true);
 635     wxHtmlPrintout *p2 = CreatePrintout();
 636     p2->SetHtmlText(htmltext, basepath, true);
 637     return DoPreview(p1, p2);
 638 }
 639
 640
 641
 642 bool wxHtmlEasyPrinting::PrintFile(const wxString &htmlfile)
 643 {
 644     wxHtmlPrintout *p = CreatePrintout();
 645     p->SetHtmlFile(htmlfile);
 646     bool ret = DoPrint(p);
 647     delete p;
 648     return ret;
 649 }
 650
 651
 652
 653 bool wxHtmlEasyPrinting::PrintText(const wxString &htmltext, const wxString &basepath)
 654 {
 655     wxHtmlPrintout *p = CreatePrintout();
 656     p->SetHtmlText(htmltext, basepath, true);
 657     bool ret = DoPrint(p);
 658     delete p;
 659     return ret;
 660 }
 661
 662
 663
 664 bool wxHtmlEasyPrinting::DoPreview(wxHtmlPrintout *printout1, wxHtmlPrintout *printout2)
 665 {
 666     // Pass two printout objects: for preview, and possible printing.
 667     wxPrintDialogData printDialogData(*GetPrintData());
 668     wxPrintPreview *preview = new wxPrintPreview(printout1, printout2, &printDialogData);
 669     if (!preview->Ok())
 670     {
 671         delete preview;
 672         return false;
 673     }
 674
 675     wxPreviewFrame *frame = new wxPreviewFrame(preview, m_ParentWindow,
 676                                                m_Name + _(" Preview"),
 677                                                wxPoint(100, 100), wxSize(650, 500));
 678     frame->Centre(wxBOTH);
 679     frame->Initialize();
 680     frame->Show(true);
 681     return true;
 682 }
 683
 684
 685
 686 bool wxHtmlEasyPrinting::DoPrint(wxHtmlPrintout *printout)
 687 {
 688     wxPrintDialogData printDialogData(*GetPrintData());
 689     wxPrinter printer(&printDialogData);
 690
 691     if (!printer.Print(m_ParentWindow, printout, true))
 692     {
 693         return false;
 694     }
 695
 696     (*GetPrintData()) = printer.GetPrintDialogData().GetPrintData();
 697     return true;
 698 }
 699
 700
 701
 702
 703 void wxHtmlEasyPrinting::PageSetup()
 704 {
 705     if (!GetPrintData()->Ok())
 706     {
 707         wxLogError(_("There was a problem during page setup: you may need to set a default printer."));
 708         return;
 709     }
 710
 711     m_PageSetupData->SetPrintData(*GetPrintData());
 712     wxPageSetupDialog pageSetupDialog(m_ParentWindow, m_PageSetupData);
 713
 714     if (pageSetupDialog.ShowModal() == wxID_OK)
 715     {
 716         (*GetPrintData()) = pageSetupDialog.GetPageSetupData().GetPrintData();
 717         (*m_PageSetupData) = pageSetupDialog.GetPageSetupData();
 718     }
 719 }
 720
 721
 722
 723 void wxHtmlEasyPrinting::SetHeader(const wxString& header, int pg)
 724 {
 725     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 726         m_Headers[0] = header;
 727     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 728         m_Headers[1] = header;
 729 }
 730
 731
 732
 733 void wxHtmlEasyPrinting::SetFooter(const wxString& footer, int pg)
 734 {
 735     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 736         m_Footers[0] = footer;
 737     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 738         m_Footers[1] = footer;
 739 }
 740
 741
 742 void wxHtmlEasyPrinting::SetFonts(const wxString& normal_face, const wxString& fixed_face,
 743                                   const int *sizes)
 744 {
 745     m_fontMode = FontMode_Explicit;
 746     m_FontFaceNormal = normal_face;
 747     m_FontFaceFixed = fixed_face;
 748
 749     if (sizes)
 750     {
 751         m_FontsSizes = m_FontsSizesArr;
 752         for (int i = 0; i < 7; i++) m_FontsSizes[i] = sizes[i];
 753     }
 754     else
 755         m_FontsSizes = NULL;
 756 }
 757
 758 void wxHtmlEasyPrinting::SetStandardFonts(int size,
 759                                           const wxString& normal_face,
 760                                           const wxString& fixed_face)
 761 {
 762     m_fontMode = FontMode_Standard;
 763     m_FontFaceNormal = normal_face;
 764     m_FontFaceFixed = fixed_face;
 765     m_FontsSizesArr[0] = size;
 766 }
 767
 768
 769 wxHtmlPrintout *wxHtmlEasyPrinting::CreatePrintout()
 770 {
 771     wxHtmlPrintout *p = new wxHtmlPrintout(m_Name);
 772
 773     if (m_fontMode == FontMode_Explicit)
 774     {
 775         p->SetFonts(m_FontFaceNormal, m_FontFaceFixed, m_FontsSizes);
 776     }
 777     else // FontMode_Standard
 778     {
 779         p->SetStandardFonts(m_FontsSizesArr[0],
 780                             m_FontFaceNormal, m_FontFaceFixed);
 781     }
 782
 783     p->SetHeader(m_Headers[0], wxPAGE_EVEN);
 784     p->SetHeader(m_Headers[1], wxPAGE_ODD);
 785     p->SetFooter(m_Footers[0], wxPAGE_EVEN);
 786     p->SetFooter(m_Footers[1], wxPAGE_ODD);
 787
 788     p->SetMargins(m_PageSetupData->GetMarginTopLeft().y,
 789                     m_PageSetupData->GetMarginBottomRight().y,
 790                     m_PageSetupData->GetMarginTopLeft().x,
 791                     m_PageSetupData->GetMarginBottomRight().x);
 792
 793     return p;
 794 }
 795
 796 // A module to allow initialization/cleanup
 797 // without calling these functions from app.cpp or from
 798 // the user's application.
 799
 800 class wxHtmlPrintingModule: public wxModule
 801 {
 802 DECLARE_DYNAMIC_CLASS(wxHtmlPrintingModule)
 803 public:
 804     wxHtmlPrintingModule() : wxModule() {}
 805     bool OnInit() { return true; }
 806     void OnExit() { wxHtmlPrintout::CleanUpStatics(); }
 807 };
 808
 809 IMPLEMENT_DYNAMIC_CLASS(wxHtmlPrintingModule, wxModule)
 810
 811
 812 // This hack forces the linker to always link in m_* files
 813 // (wxHTML doesn't work without handlers from these files)
 814 #include "wx/html/forcelnk.h"
 815 FORCE_WXHTML_MODULES()
 816
 817 #endif // wxUSE_HTML & wxUSE_PRINTING_ARCHITECTURE