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 // Copyright:   (c) Vaclav Slavik, 1999
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // For compilers that support precompilation, includes "wx/wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #ifdef __BORLANDC__
  14     #pragma hdrstop
  15 #endif
  16
  17 #if wxUSE_HTML && wxUSE_PRINTING_ARCHITECTURE && wxUSE_STREAMS
  18
  19 #ifndef WX_PRECOMP
  20     #include "wx/log.h"
  21     #include "wx/intl.h"
  22     #include "wx/dc.h"
  23     #include "wx/settings.h"
  24     #include "wx/msgdlg.h"
  25     #include "wx/module.h"
  26     #include "wx/sizer.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 #include "wx/infobar.h"
  35
  36
  37 // default font size of normal text (HTML font size 0) for printing, in points:
  38 #define DEFAULT_PRINT_FONT_SIZE   12
  39
  40
  41 // CSS specification offer following guidance on dealing with pixel sizes
  42 // when printing at
  43 // http://www.w3.org/TR/2004/CR-CSS21-20040225/syndata.html#length-units:
  44 //
  45 //      Pixel units are relative to the resolution of the viewing device, i.e.,
  46 //      most often a computer display. If the pixel density of the output
  47 //      device is very different from that of a typical computer display, the
  48 //      user agent should rescale pixel values. It is recommended that the [
  49 //      reference pixel] be the visual angle of one pixel on a device with a
  50 //      pixel density of 96dpi and a distance from the reader of an arm's
  51 //      length. For a nominal arm's length of 28 inches, the visual angle is
  52 //      therefore about 0.0213 degrees.
  53 //
  54 //      For reading at arm's length, 1px thus corresponds to about 0.26 mm
  55 //      (1/96 inch). When printed on a laser printer, meant for reading at a
  56 //      little less than arm's length (55 cm, 21 inches), 1px is about 0.20 mm.
  57 //      On a 300 dots-per-inch (dpi) printer, that may be rounded up to 3 dots
  58 //      (0.25 mm); on a 600 dpi printer, it can be rounded to 5 dots.
  59 //
  60 // See also http://trac.wxwidgets.org/ticket/10942.
  61 #define TYPICAL_SCREEN_DPI  96.0
  62
  63 //--------------------------------------------------------------------------------
  64 // wxHtmlDCRenderer
  65 //--------------------------------------------------------------------------------
  66
  67
  68 wxHtmlDCRenderer::wxHtmlDCRenderer() : wxObject()
  69 {
  70     m_DC = NULL;
  71     m_Width = m_Height = 0;
  72     m_Cells = NULL;
  73     m_Parser = new wxHtmlWinParser();
  74     m_FS = new wxFileSystem();
  75     m_Parser->SetFS(m_FS);
  76     SetStandardFonts(DEFAULT_PRINT_FONT_SIZE);
  77 }
  78
  79
  80
  81 wxHtmlDCRenderer::~wxHtmlDCRenderer()
  82 {
  83     if (m_Cells) delete m_Cells;
  84     if (m_Parser) delete m_Parser;
  85     if (m_FS) delete m_FS;
  86 }
  87
  88
  89
  90 void wxHtmlDCRenderer::SetDC(wxDC *dc, double pixel_scale, double font_scale)
  91 {
  92     m_DC = dc;
  93     m_Parser->SetDC(m_DC, pixel_scale, font_scale);
  94 }
  95
  96
  97
  98 void wxHtmlDCRenderer::SetSize(int width, int height)
  99 {
 100     wxCHECK_RET( width, "width must be non-zero" );
 101     wxCHECK_RET( height, "height must be non-zero" );
 102
 103     m_Width = width;
 104     m_Height = height;
 105 }
 106
 107
 108 void wxHtmlDCRenderer::SetHtmlText(const wxString& html, const wxString& basepath, bool isdir)
 109 {
 110     wxCHECK_RET( m_DC, "SetDC() must be called before SetHtmlText()" );
 111     wxCHECK_RET( m_Width, "SetSize() must be called before SetHtmlText()" );
 112
 113     wxDELETE(m_Cells);
 114
 115     m_FS->ChangePathTo(basepath, isdir);
 116     m_Cells = (wxHtmlContainerCell*) m_Parser->Parse(html);
 117     m_Cells->SetIndent(0, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
 118     m_Cells->Layout(m_Width);
 119 }
 120
 121
 122 void wxHtmlDCRenderer::SetFonts(const wxString& normal_face, const wxString& fixed_face,
 123                                 const int *sizes)
 124 {
 125     m_Parser->SetFonts(normal_face, fixed_face, sizes);
 126
 127     if ( m_Cells )
 128         m_Cells->Layout(m_Width);
 129     // else: SetHtmlText() not yet called, no need for relayout
 130 }
 131
 132 void wxHtmlDCRenderer::SetStandardFonts(int size,
 133                                         const wxString& normal_face,
 134                                         const wxString& fixed_face)
 135 {
 136     m_Parser->SetStandardFonts(size, normal_face, fixed_face);
 137
 138     if ( m_Cells )
 139         m_Cells->Layout(m_Width);
 140     // else: SetHtmlText() not yet called, no need for relayout
 141 }
 142
 143 int wxHtmlDCRenderer::Render(int x, int y,
 144                              wxArrayInt& known_pagebreaks,
 145                              int from, int dont_render, int to)
 146 {
 147     wxCHECK_MSG( m_Cells, 0, "SetHtmlText() must be called before Render()" );
 148     wxCHECK_MSG( m_DC, 0, "SetDC() must be called before Render()" );
 149
 150     int pbreak, hght;
 151
 152     pbreak = (int)(from + m_Height);
 153     while (m_Cells->AdjustPagebreak(&pbreak, known_pagebreaks, m_Height)) {}
 154     hght = pbreak - from;
 155     if(to < hght)
 156         hght = to;
 157
 158     if (!dont_render)
 159     {
 160         wxHtmlRenderingInfo rinfo;
 161         wxDefaultHtmlRenderingStyle rstyle;
 162         rinfo.SetStyle(&rstyle);
 163         m_DC->SetBrush(*wxWHITE_BRUSH);
 164         m_DC->SetClippingRegion(x, y, m_Width, hght);
 165         m_Cells->Draw(*m_DC,
 166                       x, (y - from),
 167                       y, y + hght,
 168                       rinfo);
 169         m_DC->DestroyClippingRegion();
 170     }
 171
 172     if (pbreak < m_Cells->GetHeight()) return pbreak;
 173     else return GetTotalHeight();
 174 }
 175
 176 int wxHtmlDCRenderer::GetTotalWidth() const
 177 {
 178     return m_Cells ? m_Cells->GetWidth() : 0;
 179 }
 180
 181 int wxHtmlDCRenderer::GetTotalHeight() const
 182 {
 183     return m_Cells ? m_Cells->GetHeight() : 0;
 184 }
 185
 186
 187 //--------------------------------------------------------------------------------
 188 // wxHtmlPrintout
 189 //--------------------------------------------------------------------------------
 190
 191
 192 wxList wxHtmlPrintout::m_Filters;
 193
 194 wxHtmlPrintout::wxHtmlPrintout(const wxString& title) : wxPrintout(title)
 195 {
 196     m_Renderer = new wxHtmlDCRenderer;
 197     m_RendererHdr = new wxHtmlDCRenderer;
 198     m_NumPages = INT_MAX;
 199     m_Document = m_BasePath = wxEmptyString; m_BasePathIsDir = true;
 200     m_Headers[0] = m_Headers[1] = wxEmptyString;
 201     m_Footers[0] = m_Footers[1] = wxEmptyString;
 202     m_HeaderHeight = m_FooterHeight = 0;
 203     SetMargins(); // to default values
 204     SetStandardFonts(DEFAULT_PRINT_FONT_SIZE);
 205 }
 206
 207
 208
 209 wxHtmlPrintout::~wxHtmlPrintout()
 210 {
 211     delete m_Renderer;
 212     delete m_RendererHdr;
 213 }
 214
 215 void wxHtmlPrintout::CleanUpStatics()
 216 {
 217     WX_CLEAR_LIST(wxList, m_Filters);
 218 }
 219
 220 // Adds input filter
 221 void wxHtmlPrintout::AddFilter(wxHtmlFilter *filter)
 222 {
 223     m_Filters.Append(filter);
 224 }
 225
 226 bool
 227 wxHtmlPrintout::CheckFit(const wxSize& pageArea, const wxSize& docArea) const
 228 {
 229     // Nothing to do if the contents fits horizontally.
 230     if ( docArea.x <= pageArea.x )
 231         return true;
 232
 233     // Otherwise warn the user more or less intrusively depending on whether
 234     // we're previewing or printing:
 235     if ( wxPrintPreview * const preview = GetPreview() )
 236     {
 237         // Don't annoy the user too much when previewing by using info bar
 238         // instead of a dialog box.
 239 #if wxUSE_INFOBAR
 240         wxFrame * const parent = preview->GetFrame();
 241         wxCHECK_MSG( parent, false, "No parent preview frame?" );
 242
 243         wxSizer * const sizer = parent->GetSizer();
 244         wxCHECK_MSG( sizer, false, "Preview frame should be using sizers" );
 245
 246         wxInfoBar * const bar = new wxInfoBar(parent);
 247         sizer->Add(bar, wxSizerFlags().Expand());
 248
 249         // Note that the message here is similar to the one below but not
 250         // exactly the same, notably we don't use the document title here
 251         // because it's already clear which document it pertains to and the
 252         // title may be long enough to make the text not fit in the window.
 253         bar->ShowMessage
 254              (
 255               _("This document doesn't fit on the page horizontally and "
 256                 "will be truncated when it is printed."),
 257               wxICON_WARNING
 258              );
 259 #endif // wxUSE_INFOBAR
 260     }
 261     else // We're going to really print and not just preview.
 262     {
 263         // This is our last chance to warn the user that the output will be
 264         // mangled so do show a message box.
 265         wxMessageDialog
 266             dlg
 267             (
 268                 NULL,
 269                 wxString::Format
 270                 (
 271                  _("The document \"%s\" doesn't fit on the page "
 272                    "horizontally and will be truncated if printed.\n"
 273                    "\n"
 274                    "Would you like to proceed with printing it nevertheless?"),
 275                  GetTitle()
 276                 ),
 277                 _("Printing"),
 278                 wxOK | wxCANCEL | wxCANCEL_DEFAULT | wxICON_QUESTION
 279             );
 280         dlg.SetExtendedMessage
 281             (
 282                 _("If possible, try changing the layout parameters to "
 283                   "make the printout more narrow.")
 284             );
 285         dlg.SetOKLabel(wxID_PRINT);
 286
 287         if ( dlg.ShowModal() == wxID_CANCEL )
 288             return false;
 289     }
 290
 291     return true;
 292 }
 293
 294 void wxHtmlPrintout::OnPreparePrinting()
 295 {
 296     int pageWidth, pageHeight, mm_w, mm_h, dc_w, dc_h;
 297     float ppmm_h, ppmm_v;
 298
 299     GetPageSizePixels(&pageWidth, &pageHeight);
 300     GetPageSizeMM(&mm_w, &mm_h);
 301     ppmm_h = (float)pageWidth / mm_w;
 302     ppmm_v = (float)pageHeight / mm_h;
 303
 304     int ppiPrinterX, ppiPrinterY;
 305     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
 306     wxUnusedVar(ppiPrinterX);
 307     int ppiScreenX, ppiScreenY;
 308     GetPPIScreen(&ppiScreenX, &ppiScreenY);
 309     wxUnusedVar(ppiScreenX);
 310
 311     GetDC()->GetSize(&dc_w, &dc_h);
 312
 313     GetDC()->SetUserScale((double)dc_w / (double)pageWidth,
 314                           (double)dc_h / (double)pageHeight);
 315
 316     /* prepare headers/footers renderer: */
 317
 318     m_RendererHdr->SetDC(GetDC(),
 319                          (double)ppiPrinterY / TYPICAL_SCREEN_DPI,
 320                          (double)ppiPrinterY / (double)ppiScreenY);
 321     m_RendererHdr->SetSize((int) (ppmm_h * (mm_w - m_MarginLeft - m_MarginRight)),
 322                           (int) (ppmm_v * (mm_h - m_MarginTop - m_MarginBottom)));
 323     if (m_Headers[0] != wxEmptyString)
 324     {
 325         m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[0], 1));
 326         m_HeaderHeight = m_RendererHdr->GetTotalHeight();
 327     }
 328     else if (m_Headers[1] != wxEmptyString)
 329     {
 330         m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[1], 1));
 331         m_HeaderHeight = m_RendererHdr->GetTotalHeight();
 332     }
 333     if (m_Footers[0] != wxEmptyString)
 334     {
 335         m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[0], 1));
 336         m_FooterHeight = m_RendererHdr->GetTotalHeight();
 337     }
 338     else if (m_Footers[1] != wxEmptyString)
 339     {
 340         m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[1], 1));
 341         m_FooterHeight = m_RendererHdr->GetTotalHeight();
 342     }
 343
 344     /* prepare main renderer: */
 345     m_Renderer->SetDC(GetDC(),
 346                       (double)ppiPrinterY / TYPICAL_SCREEN_DPI,
 347                       (double)ppiPrinterY / (double)ppiScreenY);
 348
 349     const int printAreaW = int(ppmm_h * (mm_w - m_MarginLeft - m_MarginRight));
 350     int printAreaH = int(ppmm_v * (mm_h - m_MarginTop - m_MarginBottom));
 351     if ( m_HeaderHeight )
 352         printAreaH -= int(m_HeaderHeight + m_MarginSpace * ppmm_v);
 353     if ( m_FooterHeight )
 354         printAreaH -= int(m_FooterHeight + m_MarginSpace * ppmm_v);
 355
 356     m_Renderer->SetSize(printAreaW, printAreaH);
 357     m_Renderer->SetHtmlText(m_Document, m_BasePath, m_BasePathIsDir);
 358
 359     if ( CheckFit(wxSize(printAreaW, printAreaH),
 360                   wxSize(m_Renderer->GetTotalWidth(),
 361                          m_Renderer->GetTotalHeight())) || IsPreview() )
 362     {
 363         // do paginate the document
 364         CountPages();
 365     }
 366     //else: if we don't call CountPages() m_PageBreaks remains empty and our
 367     //      GetPageInfo() will return 0 as max page and so nothing will be
 368     //      printed
 369 }
 370
 371 bool wxHtmlPrintout::OnBeginDocument(int startPage, int endPage)
 372 {
 373     if (!wxPrintout::OnBeginDocument(startPage, endPage)) return false;
 374
 375     return true;
 376 }
 377
 378
 379 bool wxHtmlPrintout::OnPrintPage(int page)
 380 {
 381     wxDC *dc = GetDC();
 382     if (dc && dc->IsOk())
 383     {
 384         if (HasPage(page))
 385             RenderPage(dc, page);
 386         return true;
 387     }
 388     else return false;
 389 }
 390
 391
 392 void wxHtmlPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo)
 393 {
 394     *minPage = 1;
 395     if ( m_NumPages >= (signed)m_PageBreaks.GetCount()-1)
 396         *maxPage = m_NumPages;
 397     else
 398         *maxPage = (signed)m_PageBreaks.GetCount()-1;
 399     *selPageFrom = 1;
 400     *selPageTo = (signed)m_PageBreaks.GetCount()-1;
 401 }
 402
 403
 404
 405 bool wxHtmlPrintout::HasPage(int pageNum)
 406 {
 407     return pageNum > 0 && (unsigned)pageNum < m_PageBreaks.GetCount();
 408 }
 409
 410
 411
 412 void wxHtmlPrintout::SetHtmlText(const wxString& html, const wxString &basepath, bool isdir)
 413 {
 414     m_Document = html;
 415     m_BasePath = basepath;
 416     m_BasePathIsDir = isdir;
 417 }
 418
 419 void wxHtmlPrintout::SetHtmlFile(const wxString& htmlfile)
 420 {
 421     wxFileSystem fs;
 422     wxFSFile *ff;
 423
 424     if (wxFileExists(htmlfile))
 425         ff = fs.OpenFile(wxFileSystem::FileNameToURL(htmlfile));
 426     else
 427         ff = fs.OpenFile(htmlfile);
 428
 429     if (ff == NULL)
 430     {
 431         wxLogError(htmlfile + _(": file does not exist!"));
 432         return;
 433     }
 434
 435     bool done = false;
 436     wxHtmlFilterHTML defaultFilter;
 437     wxString doc;
 438
 439     wxList::compatibility_iterator node = m_Filters.GetFirst();
 440     while (node)
 441     {
 442         wxHtmlFilter *h = (wxHtmlFilter*) node->GetData();
 443         if (h->CanRead(*ff))
 444         {
 445             doc = h->ReadFile(*ff);
 446             done = true;
 447             break;
 448         }
 449         node = node->GetNext();
 450     }
 451
 452     if (!done)
 453         doc = defaultFilter.ReadFile(*ff);
 454
 455     SetHtmlText(doc, htmlfile, false);
 456     delete ff;
 457 }
 458
 459
 460
 461 void wxHtmlPrintout::SetHeader(const wxString& header, int pg)
 462 {
 463     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 464         m_Headers[0] = header;
 465     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 466         m_Headers[1] = header;
 467 }
 468
 469
 470
 471 void wxHtmlPrintout::SetFooter(const wxString& footer, int pg)
 472 {
 473     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 474         m_Footers[0] = footer;
 475     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 476         m_Footers[1] = footer;
 477 }
 478
 479
 480
 481 void wxHtmlPrintout::CountPages()
 482 {
 483     wxBusyCursor wait;
 484     int pageWidth, pageHeight, mm_w, mm_h;
 485     float ppmm_h, ppmm_v;
 486
 487     GetPageSizePixels(&pageWidth, &pageHeight);
 488     GetPageSizeMM(&mm_w, &mm_h);
 489     ppmm_h = (float)pageWidth / mm_w;
 490     ppmm_v = (float)pageHeight / mm_h;
 491
 492     int pos = 0;
 493     m_NumPages = 0;
 494
 495     m_PageBreaks.Clear();
 496     m_PageBreaks.Add( 0);
 497     do
 498     {
 499         pos = m_Renderer->Render((int)( ppmm_h * m_MarginLeft),
 500                                  (int) (ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight),
 501                                  m_PageBreaks,
 502                                  pos, true, INT_MAX);
 503         m_PageBreaks.Add( pos);
 504     } while (pos < m_Renderer->GetTotalHeight());
 505 }
 506
 507
 508
 509 void wxHtmlPrintout::RenderPage(wxDC *dc, int page)
 510 {
 511     wxBusyCursor wait;
 512
 513     int pageWidth, pageHeight, mm_w, mm_h, dc_w, dc_h;
 514     float ppmm_h, ppmm_v;
 515
 516     GetPageSizePixels(&pageWidth, &pageHeight);
 517     GetPageSizeMM(&mm_w, &mm_h);
 518     ppmm_h = (float)pageWidth / mm_w;
 519     ppmm_v = (float)pageHeight / mm_h;
 520     dc->GetSize(&dc_w, &dc_h);
 521
 522     int ppiPrinterX, ppiPrinterY;
 523     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
 524     wxUnusedVar(ppiPrinterX);
 525     int ppiScreenX, ppiScreenY;
 526     GetPPIScreen(&ppiScreenX, &ppiScreenY);
 527     wxUnusedVar(ppiScreenX);
 528
 529     dc->SetUserScale((double)dc_w / (double)pageWidth,
 530                      (double)dc_h / (double)pageHeight);
 531
 532     m_Renderer->SetDC(dc,
 533                       (double)ppiPrinterY / TYPICAL_SCREEN_DPI,
 534                       (double)ppiPrinterY / (double)ppiScreenY);
 535
 536     dc->SetBackgroundMode(wxTRANSPARENT);
 537
 538     m_Renderer->Render((int) (ppmm_h * m_MarginLeft),
 539                          (int) (ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight), m_PageBreaks,
 540                          m_PageBreaks[page-1], false, m_PageBreaks[page]-m_PageBreaks[page-1]);
 541
 542
 543     m_RendererHdr->SetDC(dc,
 544                          (double)ppiPrinterY / TYPICAL_SCREEN_DPI,
 545                          (double)ppiPrinterY / (double)ppiScreenY);
 546     if (m_Headers[page % 2] != wxEmptyString)
 547     {
 548         m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[page % 2], page));
 549         m_RendererHdr->Render((int) (ppmm_h * m_MarginLeft), (int) (ppmm_v * m_MarginTop), m_PageBreaks);
 550     }
 551     if (m_Footers[page % 2] != wxEmptyString)
 552     {
 553         m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[page % 2], page));
 554         m_RendererHdr->Render((int) (ppmm_h * m_MarginLeft), (int) (pageHeight - ppmm_v * m_MarginBottom - m_FooterHeight), m_PageBreaks);
 555     }
 556 }
 557
 558
 559
 560 wxString wxHtmlPrintout::TranslateHeader(const wxString& instr, int page)
 561 {
 562     wxString r = instr;
 563     wxString num;
 564
 565     num.Printf(wxT("%i"), page);
 566     r.Replace(wxT("@PAGENUM@"), num);
 567
 568     num.Printf(wxT("%lu"), (unsigned long)(m_PageBreaks.GetCount() - 1));
 569     r.Replace(wxT("@PAGESCNT@"), num);
 570
 571     const wxDateTime now = wxDateTime::Now();
 572     r.Replace(wxT("@DATE@"), now.FormatDate());
 573     r.Replace(wxT("@TIME@"), now.FormatTime());
 574
 575     r.Replace(wxT("@TITLE@"), GetTitle());
 576
 577     return r;
 578 }
 579
 580
 581
 582 void wxHtmlPrintout::SetMargins(float top, float bottom, float left, float right, float spaces)
 583 {
 584     m_MarginTop = top;
 585     m_MarginBottom = bottom;
 586     m_MarginLeft = left;
 587     m_MarginRight = right;
 588     m_MarginSpace = spaces;
 589 }
 590
 591
 592
 593
 594 void wxHtmlPrintout::SetFonts(const wxString& normal_face, const wxString& fixed_face,
 595                               const int *sizes)
 596 {
 597     m_Renderer->SetFonts(normal_face, fixed_face, sizes);
 598     m_RendererHdr->SetFonts(normal_face, fixed_face, sizes);
 599 }
 600
 601 void wxHtmlPrintout::SetStandardFonts(int size,
 602                                       const wxString& normal_face,
 603                                       const wxString& fixed_face)
 604 {
 605     m_Renderer->SetStandardFonts(size, normal_face, fixed_face);
 606     m_RendererHdr->SetStandardFonts(size, normal_face, fixed_face);
 607 }
 608
 609
 610
 611 //----------------------------------------------------------------------------
 612 // wxHtmlEasyPrinting
 613 //----------------------------------------------------------------------------
 614
 615
 616 wxHtmlEasyPrinting::wxHtmlEasyPrinting(const wxString& name, wxWindow *parentWindow)
 617 {
 618     m_ParentWindow = parentWindow;
 619     m_Name = name;
 620     m_PrintData = NULL;
 621     m_PageSetupData = new wxPageSetupDialogData;
 622     m_Headers[0] = m_Headers[1] = m_Footers[0] = m_Footers[1] = wxEmptyString;
 623
 624     m_PageSetupData->EnableMargins(true);
 625     m_PageSetupData->SetMarginTopLeft(wxPoint(25, 25));
 626     m_PageSetupData->SetMarginBottomRight(wxPoint(25, 25));
 627
 628     SetStandardFonts(DEFAULT_PRINT_FONT_SIZE);
 629 }
 630
 631
 632
 633 wxHtmlEasyPrinting::~wxHtmlEasyPrinting()
 634 {
 635     delete m_PrintData;
 636     delete m_PageSetupData;
 637 }
 638
 639
 640 wxPrintData *wxHtmlEasyPrinting::GetPrintData()
 641 {
 642     if (m_PrintData == NULL)
 643         m_PrintData = new wxPrintData();
 644     return m_PrintData;
 645 }
 646
 647
 648 bool wxHtmlEasyPrinting::PreviewFile(const wxString &htmlfile)
 649 {
 650     wxHtmlPrintout *p1 = CreatePrintout();
 651     p1->SetHtmlFile(htmlfile);
 652     wxHtmlPrintout *p2 = CreatePrintout();
 653     p2->SetHtmlFile(htmlfile);
 654     return DoPreview(p1, p2);
 655 }
 656
 657
 658
 659 bool wxHtmlEasyPrinting::PreviewText(const wxString &htmltext, const wxString &basepath)
 660 {
 661     wxHtmlPrintout *p1 = CreatePrintout();
 662     p1->SetHtmlText(htmltext, basepath, true);
 663     wxHtmlPrintout *p2 = CreatePrintout();
 664     p2->SetHtmlText(htmltext, basepath, true);
 665     return DoPreview(p1, p2);
 666 }
 667
 668
 669
 670 bool wxHtmlEasyPrinting::PrintFile(const wxString &htmlfile)
 671 {
 672     wxHtmlPrintout *p = CreatePrintout();
 673     p->SetHtmlFile(htmlfile);
 674     bool ret = DoPrint(p);
 675     delete p;
 676     return ret;
 677 }
 678
 679
 680
 681 bool wxHtmlEasyPrinting::PrintText(const wxString &htmltext, const wxString &basepath)
 682 {
 683     wxHtmlPrintout *p = CreatePrintout();
 684     p->SetHtmlText(htmltext, basepath, true);
 685     bool ret = DoPrint(p);
 686     delete p;
 687     return ret;
 688 }
 689
 690
 691
 692 bool wxHtmlEasyPrinting::DoPreview(wxHtmlPrintout *printout1, wxHtmlPrintout *printout2)
 693 {
 694     // Pass two printout objects: for preview, and possible printing.
 695     wxPrintDialogData printDialogData(*GetPrintData());
 696     wxPrintPreview *preview = new wxPrintPreview(printout1, printout2, &printDialogData);
 697     if (!preview->IsOk())
 698     {
 699         delete preview;
 700         return false;
 701     }
 702
 703     wxPreviewFrame *frame = new wxPreviewFrame(preview, m_ParentWindow,
 704                                                m_Name + _(" Preview"),
 705                                                wxPoint(100, 100), wxSize(650, 500));
 706     frame->Centre(wxBOTH);
 707     frame->Initialize();
 708     frame->Show(true);
 709     return true;
 710 }
 711
 712
 713
 714 bool wxHtmlEasyPrinting::DoPrint(wxHtmlPrintout *printout)
 715 {
 716     wxPrintDialogData printDialogData(*GetPrintData());
 717     wxPrinter printer(&printDialogData);
 718
 719     if (!printer.Print(m_ParentWindow, printout, true))
 720     {
 721         return false;
 722     }
 723
 724     (*GetPrintData()) = printer.GetPrintDialogData().GetPrintData();
 725     return true;
 726 }
 727
 728
 729
 730
 731 void wxHtmlEasyPrinting::PageSetup()
 732 {
 733     if (!GetPrintData()->IsOk())
 734     {
 735         wxLogError(_("There was a problem during page setup: you may need to set a default printer."));
 736         return;
 737     }
 738
 739     m_PageSetupData->SetPrintData(*GetPrintData());
 740     wxPageSetupDialog pageSetupDialog(m_ParentWindow, m_PageSetupData);
 741
 742     if (pageSetupDialog.ShowModal() == wxID_OK)
 743     {
 744         (*GetPrintData()) = pageSetupDialog.GetPageSetupData().GetPrintData();
 745         (*m_PageSetupData) = pageSetupDialog.GetPageSetupData();
 746     }
 747 }
 748
 749
 750
 751 void wxHtmlEasyPrinting::SetHeader(const wxString& header, int pg)
 752 {
 753     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 754         m_Headers[0] = header;
 755     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 756         m_Headers[1] = header;
 757 }
 758
 759
 760
 761 void wxHtmlEasyPrinting::SetFooter(const wxString& footer, int pg)
 762 {
 763     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 764         m_Footers[0] = footer;
 765     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 766         m_Footers[1] = footer;
 767 }
 768
 769
 770 void wxHtmlEasyPrinting::SetFonts(const wxString& normal_face, const wxString& fixed_face,
 771                                   const int *sizes)
 772 {
 773     m_fontMode = FontMode_Explicit;
 774     m_FontFaceNormal = normal_face;
 775     m_FontFaceFixed = fixed_face;
 776
 777     if (sizes)
 778     {
 779         m_FontsSizes = m_FontsSizesArr;
 780         for (int i = 0; i < 7; i++) m_FontsSizes[i] = sizes[i];
 781     }
 782     else
 783         m_FontsSizes = NULL;
 784 }
 785
 786 void wxHtmlEasyPrinting::SetStandardFonts(int size,
 787                                           const wxString& normal_face,
 788                                           const wxString& fixed_face)
 789 {
 790     m_fontMode = FontMode_Standard;
 791     m_FontFaceNormal = normal_face;
 792     m_FontFaceFixed = fixed_face;
 793     m_FontsSizesArr[0] = size;
 794 }
 795
 796
 797 wxHtmlPrintout *wxHtmlEasyPrinting::CreatePrintout()
 798 {
 799     wxHtmlPrintout *p = new wxHtmlPrintout(m_Name);
 800
 801     if (m_fontMode == FontMode_Explicit)
 802     {
 803         p->SetFonts(m_FontFaceNormal, m_FontFaceFixed, m_FontsSizes);
 804     }
 805     else // FontMode_Standard
 806     {
 807         p->SetStandardFonts(m_FontsSizesArr[0],
 808                             m_FontFaceNormal, m_FontFaceFixed);
 809     }
 810
 811     p->SetHeader(m_Headers[0], wxPAGE_EVEN);
 812     p->SetHeader(m_Headers[1], wxPAGE_ODD);
 813     p->SetFooter(m_Footers[0], wxPAGE_EVEN);
 814     p->SetFooter(m_Footers[1], wxPAGE_ODD);
 815
 816     p->SetMargins(m_PageSetupData->GetMarginTopLeft().y,
 817                     m_PageSetupData->GetMarginBottomRight().y,
 818                     m_PageSetupData->GetMarginTopLeft().x,
 819                     m_PageSetupData->GetMarginBottomRight().x);
 820
 821     return p;
 822 }
 823
 824 // A module to allow initialization/cleanup
 825 // without calling these functions from app.cpp or from
 826 // the user's application.
 827
 828 class wxHtmlPrintingModule: public wxModule
 829 {
 830 DECLARE_DYNAMIC_CLASS(wxHtmlPrintingModule)
 831 public:
 832     wxHtmlPrintingModule() : wxModule() {}
 833     bool OnInit() { return true; }
 834     void OnExit() { wxHtmlPrintout::CleanUpStatics(); }
 835 };
 836
 837 IMPLEMENT_DYNAMIC_CLASS(wxHtmlPrintingModule, wxModule)
 838
 839
 840 // This hack forces the linker to always link in m_* files
 841 // (wxHTML doesn't work without handlers from these files)
 842 #include "wx/html/forcelnk.h"
 843 FORCE_WXHTML_MODULES()
 844
 845 #endif // wxUSE_HTML & wxUSE_PRINTING_ARCHITECTURE