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     #include "wx/sizer.h"
  28 #endif
  29
  30 #include "wx/print.h"
  31 #include "wx/printdlg.h"
  32 #include "wx/html/htmprint.h"
  33 #include "wx/wxhtml.h"
  34 #include "wx/wfstream.h"
  35 #include "wx/infobar.h"
  36
  37
  38 // default font size of normal text (HTML font size 0) for printing, in points:
  39 #define DEFAULT_PRINT_FONT_SIZE   12
  40
  41
  42 // CSS specification offer following guidance on dealing with pixel sizes
  43 // when printing at
  44 // http://www.w3.org/TR/2004/CR-CSS21-20040225/syndata.html#length-units:
  45 //
  46 //      Pixel units are relative to the resolution of the viewing device, i.e.,
  47 //      most often a computer display. If the pixel density of the output
  48 //      device is very different from that of a typical computer display, the
  49 //      user agent should rescale pixel values. It is recommended that the [
  50 //      reference pixel] be the visual angle of one pixel on a device with a
  51 //      pixel density of 96dpi and a distance from the reader of an arm's
  52 //      length. For a nominal arm's length of 28 inches, the visual angle is
  53 //      therefore about 0.0213 degrees.
  54 //
  55 //      For reading at arm's length, 1px thus corresponds to about 0.26 mm
  56 //      (1/96 inch). When printed on a laser printer, meant for reading at a
  57 //      little less than arm's length (55 cm, 21 inches), 1px is about 0.20 mm.
  58 //      On a 300 dots-per-inch (dpi) printer, that may be rounded up to 3 dots
  59 //      (0.25 mm); on a 600 dpi printer, it can be rounded to 5 dots.
  60 //
  61 // See also http://trac.wxwidgets.org/ticket/10942.
  62 #define TYPICAL_SCREEN_DPI  96.0
  63
  64 //--------------------------------------------------------------------------------
  65 // wxHtmlDCRenderer
  66 //--------------------------------------------------------------------------------
  67
  68
  69 wxHtmlDCRenderer::wxHtmlDCRenderer() : wxObject()
  70 {
  71     m_DC = NULL;
  72     m_Width = m_Height = 0;
  73     m_Cells = NULL;
  74     m_Parser = new wxHtmlWinParser();
  75     m_FS = new wxFileSystem();
  76     m_Parser->SetFS(m_FS);
  77     SetStandardFonts(DEFAULT_PRINT_FONT_SIZE);
  78 }
  79
  80
  81
  82 wxHtmlDCRenderer::~wxHtmlDCRenderer()
  83 {
  84     if (m_Cells) delete m_Cells;
  85     if (m_Parser) delete m_Parser;
  86     if (m_FS) delete m_FS;
  87 }
  88
  89
  90
  91 void wxHtmlDCRenderer::SetDC(wxDC *dc, double pixel_scale, double font_scale)
  92 {
  93     m_DC = dc;
  94     m_Parser->SetDC(m_DC, pixel_scale, font_scale);
  95 }
  96
  97
  98
  99 void wxHtmlDCRenderer::SetSize(int width, int height)
 100 {
 101     wxCHECK_RET( width, "width must be non-zero" );
 102     wxCHECK_RET( height, "height must be non-zero" );
 103
 104     m_Width = width;
 105     m_Height = height;
 106 }
 107
 108
 109 void wxHtmlDCRenderer::SetHtmlText(const wxString& html, const wxString& basepath, bool isdir)
 110 {
 111     wxCHECK_RET( m_DC, "SetDC() must be called before SetHtmlText()" );
 112     wxCHECK_RET( m_Width, "SetSize() must be called before SetHtmlText()" );
 113
 114     wxDELETE(m_Cells);
 115
 116     m_FS->ChangePathTo(basepath, isdir);
 117     m_Cells = (wxHtmlContainerCell*) m_Parser->Parse(html);
 118     m_Cells->SetIndent(0, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
 119     m_Cells->Layout(m_Width);
 120 }
 121
 122
 123 void wxHtmlDCRenderer::SetFonts(const wxString& normal_face, const wxString& fixed_face,
 124                                 const int *sizes)
 125 {
 126     m_Parser->SetFonts(normal_face, fixed_face, sizes);
 127
 128     if ( m_Cells )
 129         m_Cells->Layout(m_Width);
 130     // else: SetHtmlText() not yet called, no need for relayout
 131 }
 132
 133 void wxHtmlDCRenderer::SetStandardFonts(int size,
 134                                         const wxString& normal_face,
 135                                         const wxString& fixed_face)
 136 {
 137     m_Parser->SetStandardFonts(size, normal_face, fixed_face);
 138
 139     if ( m_Cells )
 140         m_Cells->Layout(m_Width);
 141     // else: SetHtmlText() not yet called, no need for relayout
 142 }
 143
 144 int wxHtmlDCRenderer::Render(int x, int y,
 145                              wxArrayInt& known_pagebreaks,
 146                              int from, int dont_render, int to)
 147 {
 148     wxCHECK_MSG( m_Cells, 0, "SetHtmlText() must be called before Render()" );
 149     wxCHECK_MSG( m_DC, 0, "SetDC() must be called before Render()" );
 150
 151     int pbreak, hght;
 152
 153     pbreak = (int)(from + m_Height);
 154     while (m_Cells->AdjustPagebreak(&pbreak, known_pagebreaks, m_Height)) {}
 155     hght = pbreak - from;
 156     if(to < hght)
 157         hght = to;
 158
 159     if (!dont_render)
 160     {
 161         wxHtmlRenderingInfo rinfo;
 162         wxDefaultHtmlRenderingStyle rstyle;
 163         rinfo.SetStyle(&rstyle);
 164         m_DC->SetBrush(*wxWHITE_BRUSH);
 165         m_DC->SetClippingRegion(x, y, m_Width, hght);
 166         m_Cells->Draw(*m_DC,
 167                       x, (y - from),
 168                       y, y + hght,
 169                       rinfo);
 170         m_DC->DestroyClippingRegion();
 171     }
 172
 173     if (pbreak < m_Cells->GetHeight()) return pbreak;
 174     else return GetTotalHeight();
 175 }
 176
 177 int wxHtmlDCRenderer::GetTotalWidth() const
 178 {
 179     return m_Cells ? m_Cells->GetWidth() : 0;
 180 }
 181
 182 int wxHtmlDCRenderer::GetTotalHeight() const
 183 {
 184     return m_Cells ? m_Cells->GetHeight() : 0;
 185 }
 186
 187
 188 //--------------------------------------------------------------------------------
 189 // wxHtmlPrintout
 190 //--------------------------------------------------------------------------------
 191
 192
 193 wxList wxHtmlPrintout::m_Filters;
 194
 195 wxHtmlPrintout::wxHtmlPrintout(const wxString& title) : wxPrintout(title)
 196 {
 197     m_Renderer = new wxHtmlDCRenderer;
 198     m_RendererHdr = new wxHtmlDCRenderer;
 199     m_NumPages = INT_MAX;
 200     m_Document = m_BasePath = wxEmptyString; m_BasePathIsDir = true;
 201     m_Headers[0] = m_Headers[1] = wxEmptyString;
 202     m_Footers[0] = m_Footers[1] = wxEmptyString;
 203     m_HeaderHeight = m_FooterHeight = 0;
 204     SetMargins(); // to default values
 205     SetStandardFonts(DEFAULT_PRINT_FONT_SIZE);
 206 }
 207
 208
 209
 210 wxHtmlPrintout::~wxHtmlPrintout()
 211 {
 212     delete m_Renderer;
 213     delete m_RendererHdr;
 214 }
 215
 216 void wxHtmlPrintout::CleanUpStatics()
 217 {
 218     WX_CLEAR_LIST(wxList, m_Filters);
 219 }
 220
 221 // Adds input filter
 222 void wxHtmlPrintout::AddFilter(wxHtmlFilter *filter)
 223 {
 224     m_Filters.Append(filter);
 225 }
 226
 227 bool
 228 wxHtmlPrintout::CheckFit(const wxSize& pageArea, const wxSize& docArea) const
 229 {
 230     // Nothing to do if the contents fits horizontally.
 231     if ( docArea.x <= pageArea.x )
 232         return true;
 233
 234     // Otherwise warn the user more or less intrusively depending on whether
 235     // we're previewing or printing:
 236     if ( wxPrintPreview * const preview = GetPreview() )
 237     {
 238         // Don't annoy the user too much when previewing by using info bar
 239         // instead of a dialog box.
 240 #if wxUSE_INFOBAR
 241         wxFrame * const parent = preview->GetFrame();
 242         wxCHECK_MSG( parent, false, "No parent preview frame?" );
 243
 244         wxSizer * const sizer = parent->GetSizer();
 245         wxCHECK_MSG( sizer, false, "Preview frame should be using sizers" );
 246
 247         wxInfoBar * const bar = new wxInfoBar(parent);
 248         sizer->Add(bar, wxSizerFlags().Expand());
 249
 250         // Note that the message here is similar to the one below but not
 251         // exactly the same, notably we don't use the document title here
 252         // because it's already clear which document it pertains to and the
 253         // title may be long enough to make the text not fit in the window.
 254         bar->ShowMessage
 255              (
 256               _("This document doesn't fit on the page horizontally and "
 257                 "will be truncated when it is printed."),
 258               wxICON_WARNING
 259              );
 260 #endif // wxUSE_INFOBAR
 261     }
 262     else // We're going to really print and not just preview.
 263     {
 264         // This is our last chance to warn the user that the output will be
 265         // mangled so do show a message box.
 266         wxMessageDialog
 267             dlg
 268             (
 269                 NULL,
 270                 wxString::Format
 271                 (
 272                  _("The document \"%s\" doesn't fit on the page "
 273                    "horizontally and will be truncated if printed.\n"
 274                    "\n"
 275                    "Would you like to proceed with printing it nevertheless?"),
 276                  GetTitle()
 277                 ),
 278                 _("Printing"),
 279                 wxOK | wxCANCEL | wxCANCEL_DEFAULT | wxICON_QUESTION
 280             );
 281         dlg.SetExtendedMessage
 282             (
 283                 _("If possible, try changing the layout parameters to "
 284                   "make the printout more narrow.")
 285             );
 286         dlg.SetOKLabel(wxID_PRINT);
 287
 288         if ( dlg.ShowModal() == wxID_CANCEL )
 289             return false;
 290     }
 291
 292     return true;
 293 }
 294
 295 void wxHtmlPrintout::OnPreparePrinting()
 296 {
 297     int pageWidth, pageHeight, mm_w, mm_h, dc_w, dc_h;
 298     float ppmm_h, ppmm_v;
 299
 300     GetPageSizePixels(&pageWidth, &pageHeight);
 301     GetPageSizeMM(&mm_w, &mm_h);
 302     ppmm_h = (float)pageWidth / mm_w;
 303     ppmm_v = (float)pageHeight / mm_h;
 304
 305     int ppiPrinterX, ppiPrinterY;
 306     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
 307     wxUnusedVar(ppiPrinterX);
 308     int ppiScreenX, ppiScreenY;
 309     GetPPIScreen(&ppiScreenX, &ppiScreenY);
 310     wxUnusedVar(ppiScreenX);
 311
 312     GetDC()->GetSize(&dc_w, &dc_h);
 313
 314     GetDC()->SetUserScale((double)dc_w / (double)pageWidth,
 315                           (double)dc_h / (double)pageHeight);
 316
 317     /* prepare headers/footers renderer: */
 318
 319     m_RendererHdr->SetDC(GetDC(),
 320                          (double)ppiPrinterY / TYPICAL_SCREEN_DPI,
 321                          (double)ppiPrinterY / (double)ppiScreenY);
 322     m_RendererHdr->SetSize((int) (ppmm_h * (mm_w - m_MarginLeft - m_MarginRight)),
 323                           (int) (ppmm_v * (mm_h - m_MarginTop - m_MarginBottom)));
 324     if (m_Headers[0] != wxEmptyString)
 325     {
 326         m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[0], 1));
 327         m_HeaderHeight = m_RendererHdr->GetTotalHeight();
 328     }
 329     else if (m_Headers[1] != wxEmptyString)
 330     {
 331         m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[1], 1));
 332         m_HeaderHeight = m_RendererHdr->GetTotalHeight();
 333     }
 334     if (m_Footers[0] != wxEmptyString)
 335     {
 336         m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[0], 1));
 337         m_FooterHeight = m_RendererHdr->GetTotalHeight();
 338     }
 339     else if (m_Footers[1] != wxEmptyString)
 340     {
 341         m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[1], 1));
 342         m_FooterHeight = m_RendererHdr->GetTotalHeight();
 343     }
 344
 345     /* prepare main renderer: */
 346     m_Renderer->SetDC(GetDC(),
 347                       (double)ppiPrinterY / TYPICAL_SCREEN_DPI,
 348                       (double)ppiPrinterY / (double)ppiScreenY);
 349
 350     const int printAreaW = int(ppmm_h * (mm_w - m_MarginLeft - m_MarginRight));
 351     int printAreaH = int(ppmm_v * (mm_h - m_MarginTop - m_MarginBottom));
 352     if ( m_HeaderHeight )
 353         printAreaH -= int(m_HeaderHeight + m_MarginSpace * ppmm_v);
 354     if ( m_FooterHeight )
 355         printAreaH -= int(m_FooterHeight + m_MarginSpace * ppmm_v);
 356
 357     m_Renderer->SetSize(printAreaW, printAreaH);
 358     m_Renderer->SetHtmlText(m_Document, m_BasePath, m_BasePathIsDir);
 359
 360     if ( CheckFit(wxSize(printAreaW, printAreaH),
 361                   wxSize(m_Renderer->GetTotalWidth(),
 362                          m_Renderer->GetTotalHeight())) || IsPreview() )
 363     {
 364         // do paginate the document
 365         CountPages();
 366     }
 367     //else: if we don't call CountPages() m_PageBreaks remains empty and our
 368     //      GetPageInfo() will return 0 as max page and so nothing will be
 369     //      printed
 370 }
 371
 372 bool wxHtmlPrintout::OnBeginDocument(int startPage, int endPage)
 373 {
 374     if (!wxPrintout::OnBeginDocument(startPage, endPage)) return false;
 375
 376     return true;
 377 }
 378
 379
 380 bool wxHtmlPrintout::OnPrintPage(int page)
 381 {
 382     wxDC *dc = GetDC();
 383     if (dc && dc->IsOk())
 384     {
 385         if (HasPage(page))
 386             RenderPage(dc, page);
 387         return true;
 388     }
 389     else return false;
 390 }
 391
 392
 393 void wxHtmlPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo)
 394 {
 395     *minPage = 1;
 396     if ( m_NumPages >= (signed)m_PageBreaks.GetCount()-1)
 397         *maxPage = m_NumPages;
 398     else
 399         *maxPage = (signed)m_PageBreaks.GetCount()-1;
 400     *selPageFrom = 1;
 401     *selPageTo = (signed)m_PageBreaks.GetCount()-1;
 402 }
 403
 404
 405
 406 bool wxHtmlPrintout::HasPage(int pageNum)
 407 {
 408     return pageNum > 0 && (unsigned)pageNum < m_PageBreaks.GetCount();
 409 }
 410
 411
 412
 413 void wxHtmlPrintout::SetHtmlText(const wxString& html, const wxString &basepath, bool isdir)
 414 {
 415     m_Document = html;
 416     m_BasePath = basepath;
 417     m_BasePathIsDir = isdir;
 418 }
 419
 420 void wxHtmlPrintout::SetHtmlFile(const wxString& htmlfile)
 421 {
 422     wxFileSystem fs;
 423     wxFSFile *ff;
 424
 425     if (wxFileExists(htmlfile))
 426         ff = fs.OpenFile(wxFileSystem::FileNameToURL(htmlfile));
 427     else
 428         ff = fs.OpenFile(htmlfile);
 429
 430     if (ff == NULL)
 431     {
 432         wxLogError(htmlfile + _(": file does not exist!"));
 433         return;
 434     }
 435
 436     bool done = false;
 437     wxHtmlFilterHTML defaultFilter;
 438     wxString doc;
 439
 440     wxList::compatibility_iterator node = m_Filters.GetFirst();
 441     while (node)
 442     {
 443         wxHtmlFilter *h = (wxHtmlFilter*) node->GetData();
 444         if (h->CanRead(*ff))
 445         {
 446             doc = h->ReadFile(*ff);
 447             done = true;
 448             break;
 449         }
 450         node = node->GetNext();
 451     }
 452
 453     if (!done)
 454         doc = defaultFilter.ReadFile(*ff);
 455
 456     SetHtmlText(doc, htmlfile, false);
 457     delete ff;
 458 }
 459
 460
 461
 462 void wxHtmlPrintout::SetHeader(const wxString& header, int pg)
 463 {
 464     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 465         m_Headers[0] = header;
 466     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 467         m_Headers[1] = header;
 468 }
 469
 470
 471
 472 void wxHtmlPrintout::SetFooter(const wxString& footer, int pg)
 473 {
 474     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 475         m_Footers[0] = footer;
 476     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 477         m_Footers[1] = footer;
 478 }
 479
 480
 481
 482 void wxHtmlPrintout::CountPages()
 483 {
 484     wxBusyCursor wait;
 485     int pageWidth, pageHeight, mm_w, mm_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
 493     int pos = 0;
 494     m_NumPages = 0;
 495
 496     m_PageBreaks.Clear();
 497     m_PageBreaks.Add( 0);
 498     do
 499     {
 500         pos = m_Renderer->Render((int)( ppmm_h * m_MarginLeft),
 501                                  (int) (ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight),
 502                                  m_PageBreaks,
 503                                  pos, true, INT_MAX);
 504         m_PageBreaks.Add( pos);
 505     } while (pos < m_Renderer->GetTotalHeight());
 506 }
 507
 508
 509
 510 void wxHtmlPrintout::RenderPage(wxDC *dc, int page)
 511 {
 512     wxBusyCursor wait;
 513
 514     int pageWidth, pageHeight, mm_w, mm_h, dc_w, dc_h;
 515     float ppmm_h, ppmm_v;
 516
 517     GetPageSizePixels(&pageWidth, &pageHeight);
 518     GetPageSizeMM(&mm_w, &mm_h);
 519     ppmm_h = (float)pageWidth / mm_w;
 520     ppmm_v = (float)pageHeight / mm_h;
 521     dc->GetSize(&dc_w, &dc_h);
 522
 523     int ppiPrinterX, ppiPrinterY;
 524     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
 525     wxUnusedVar(ppiPrinterX);
 526     int ppiScreenX, ppiScreenY;
 527     GetPPIScreen(&ppiScreenX, &ppiScreenY);
 528     wxUnusedVar(ppiScreenX);
 529
 530     dc->SetUserScale((double)dc_w / (double)pageWidth,
 531                      (double)dc_h / (double)pageHeight);
 532
 533     m_Renderer->SetDC(dc,
 534                       (double)ppiPrinterY / TYPICAL_SCREEN_DPI,
 535                       (double)ppiPrinterY / (double)ppiScreenY);
 536
 537     dc->SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
 538
 539     m_Renderer->Render((int) (ppmm_h * m_MarginLeft),
 540                          (int) (ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight), m_PageBreaks,
 541                          m_PageBreaks[page-1], false, m_PageBreaks[page]-m_PageBreaks[page-1]);
 542
 543
 544     m_RendererHdr->SetDC(dc,
 545                          (double)ppiPrinterY / TYPICAL_SCREEN_DPI,
 546                          (double)ppiPrinterY / (double)ppiScreenY);
 547     if (m_Headers[page % 2] != wxEmptyString)
 548     {
 549         m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[page % 2], page));
 550         m_RendererHdr->Render((int) (ppmm_h * m_MarginLeft), (int) (ppmm_v * m_MarginTop), m_PageBreaks);
 551     }
 552     if (m_Footers[page % 2] != wxEmptyString)
 553     {
 554         m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[page % 2], page));
 555         m_RendererHdr->Render((int) (ppmm_h * m_MarginLeft), (int) (pageHeight - ppmm_v * m_MarginBottom - m_FooterHeight), m_PageBreaks);
 556     }
 557 }
 558
 559
 560
 561 wxString wxHtmlPrintout::TranslateHeader(const wxString& instr, int page)
 562 {
 563     wxString r = instr;
 564     wxString num;
 565
 566     num.Printf(wxT("%i"), page);
 567     r.Replace(wxT("@PAGENUM@"), num);
 568
 569     num.Printf(wxT("%lu"), (unsigned long)(m_PageBreaks.GetCount() - 1));
 570     r.Replace(wxT("@PAGESCNT@"), num);
 571
 572     const wxDateTime now = wxDateTime::Now();
 573     r.Replace(wxT("@DATE@"), now.FormatDate());
 574     r.Replace(wxT("@TIME@"), now.FormatTime());
 575
 576     r.Replace(wxT("@TITLE@"), GetTitle());
 577
 578     return r;
 579 }
 580
 581
 582
 583 void wxHtmlPrintout::SetMargins(float top, float bottom, float left, float right, float spaces)
 584 {
 585     m_MarginTop = top;
 586     m_MarginBottom = bottom;
 587     m_MarginLeft = left;
 588     m_MarginRight = right;
 589     m_MarginSpace = spaces;
 590 }
 591
 592
 593
 594
 595 void wxHtmlPrintout::SetFonts(const wxString& normal_face, const wxString& fixed_face,
 596                               const int *sizes)
 597 {
 598     m_Renderer->SetFonts(normal_face, fixed_face, sizes);
 599     m_RendererHdr->SetFonts(normal_face, fixed_face, sizes);
 600 }
 601
 602 void wxHtmlPrintout::SetStandardFonts(int size,
 603                                       const wxString& normal_face,
 604                                       const wxString& fixed_face)
 605 {
 606     m_Renderer->SetStandardFonts(size, normal_face, fixed_face);
 607     m_RendererHdr->SetStandardFonts(size, normal_face, fixed_face);
 608 }
 609
 610
 611
 612 //----------------------------------------------------------------------------
 613 // wxHtmlEasyPrinting
 614 //----------------------------------------------------------------------------
 615
 616
 617 wxHtmlEasyPrinting::wxHtmlEasyPrinting(const wxString& name, wxWindow *parentWindow)
 618 {
 619     m_ParentWindow = parentWindow;
 620     m_Name = name;
 621     m_PrintData = NULL;
 622     m_PageSetupData = new wxPageSetupDialogData;
 623     m_Headers[0] = m_Headers[1] = m_Footers[0] = m_Footers[1] = wxEmptyString;
 624
 625     m_PageSetupData->EnableMargins(true);
 626     m_PageSetupData->SetMarginTopLeft(wxPoint(25, 25));
 627     m_PageSetupData->SetMarginBottomRight(wxPoint(25, 25));
 628
 629     SetStandardFonts(DEFAULT_PRINT_FONT_SIZE);
 630 }
 631
 632
 633
 634 wxHtmlEasyPrinting::~wxHtmlEasyPrinting()
 635 {
 636     delete m_PrintData;
 637     delete m_PageSetupData;
 638 }
 639
 640
 641 wxPrintData *wxHtmlEasyPrinting::GetPrintData()
 642 {
 643     if (m_PrintData == NULL)
 644         m_PrintData = new wxPrintData();
 645     return m_PrintData;
 646 }
 647
 648
 649 bool wxHtmlEasyPrinting::PreviewFile(const wxString &htmlfile)
 650 {
 651     wxHtmlPrintout *p1 = CreatePrintout();
 652     p1->SetHtmlFile(htmlfile);
 653     wxHtmlPrintout *p2 = CreatePrintout();
 654     p2->SetHtmlFile(htmlfile);
 655     return DoPreview(p1, p2);
 656 }
 657
 658
 659
 660 bool wxHtmlEasyPrinting::PreviewText(const wxString &htmltext, const wxString &basepath)
 661 {
 662     wxHtmlPrintout *p1 = CreatePrintout();
 663     p1->SetHtmlText(htmltext, basepath, true);
 664     wxHtmlPrintout *p2 = CreatePrintout();
 665     p2->SetHtmlText(htmltext, basepath, true);
 666     return DoPreview(p1, p2);
 667 }
 668
 669
 670
 671 bool wxHtmlEasyPrinting::PrintFile(const wxString &htmlfile)
 672 {
 673     wxHtmlPrintout *p = CreatePrintout();
 674     p->SetHtmlFile(htmlfile);
 675     bool ret = DoPrint(p);
 676     delete p;
 677     return ret;
 678 }
 679
 680
 681
 682 bool wxHtmlEasyPrinting::PrintText(const wxString &htmltext, const wxString &basepath)
 683 {
 684     wxHtmlPrintout *p = CreatePrintout();
 685     p->SetHtmlText(htmltext, basepath, true);
 686     bool ret = DoPrint(p);
 687     delete p;
 688     return ret;
 689 }
 690
 691
 692
 693 bool wxHtmlEasyPrinting::DoPreview(wxHtmlPrintout *printout1, wxHtmlPrintout *printout2)
 694 {
 695     // Pass two printout objects: for preview, and possible printing.
 696     wxPrintDialogData printDialogData(*GetPrintData());
 697     wxPrintPreview *preview = new wxPrintPreview(printout1, printout2, &printDialogData);
 698     if (!preview->IsOk())
 699     {
 700         delete preview;
 701         return false;
 702     }
 703
 704     wxPreviewFrame *frame = new wxPreviewFrame(preview, m_ParentWindow,
 705                                                m_Name + _(" Preview"),
 706                                                wxPoint(100, 100), wxSize(650, 500));
 707     frame->Centre(wxBOTH);
 708     frame->Initialize();
 709     frame->Show(true);
 710     return true;
 711 }
 712
 713
 714
 715 bool wxHtmlEasyPrinting::DoPrint(wxHtmlPrintout *printout)
 716 {
 717     wxPrintDialogData printDialogData(*GetPrintData());
 718     wxPrinter printer(&printDialogData);
 719
 720     if (!printer.Print(m_ParentWindow, printout, true))
 721     {
 722         return false;
 723     }
 724
 725     (*GetPrintData()) = printer.GetPrintDialogData().GetPrintData();
 726     return true;
 727 }
 728
 729
 730
 731
 732 void wxHtmlEasyPrinting::PageSetup()
 733 {
 734     if (!GetPrintData()->IsOk())
 735     {
 736         wxLogError(_("There was a problem during page setup: you may need to set a default printer."));
 737         return;
 738     }
 739
 740     m_PageSetupData->SetPrintData(*GetPrintData());
 741     wxPageSetupDialog pageSetupDialog(m_ParentWindow, m_PageSetupData);
 742
 743     if (pageSetupDialog.ShowModal() == wxID_OK)
 744     {
 745         (*GetPrintData()) = pageSetupDialog.GetPageSetupData().GetPrintData();
 746         (*m_PageSetupData) = pageSetupDialog.GetPageSetupData();
 747     }
 748 }
 749
 750
 751
 752 void wxHtmlEasyPrinting::SetHeader(const wxString& header, int pg)
 753 {
 754     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 755         m_Headers[0] = header;
 756     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 757         m_Headers[1] = header;
 758 }
 759
 760
 761
 762 void wxHtmlEasyPrinting::SetFooter(const wxString& footer, int pg)
 763 {
 764     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 765         m_Footers[0] = footer;
 766     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 767         m_Footers[1] = footer;
 768 }
 769
 770
 771 void wxHtmlEasyPrinting::SetFonts(const wxString& normal_face, const wxString& fixed_face,
 772                                   const int *sizes)
 773 {
 774     m_fontMode = FontMode_Explicit;
 775     m_FontFaceNormal = normal_face;
 776     m_FontFaceFixed = fixed_face;
 777
 778     if (sizes)
 779     {
 780         m_FontsSizes = m_FontsSizesArr;
 781         for (int i = 0; i < 7; i++) m_FontsSizes[i] = sizes[i];
 782     }
 783     else
 784         m_FontsSizes = NULL;
 785 }
 786
 787 void wxHtmlEasyPrinting::SetStandardFonts(int size,
 788                                           const wxString& normal_face,
 789                                           const wxString& fixed_face)
 790 {
 791     m_fontMode = FontMode_Standard;
 792     m_FontFaceNormal = normal_face;
 793     m_FontFaceFixed = fixed_face;
 794     m_FontsSizesArr[0] = size;
 795 }
 796
 797
 798 wxHtmlPrintout *wxHtmlEasyPrinting::CreatePrintout()
 799 {
 800     wxHtmlPrintout *p = new wxHtmlPrintout(m_Name);
 801
 802     if (m_fontMode == FontMode_Explicit)
 803     {
 804         p->SetFonts(m_FontFaceNormal, m_FontFaceFixed, m_FontsSizes);
 805     }
 806     else // FontMode_Standard
 807     {
 808         p->SetStandardFonts(m_FontsSizesArr[0],
 809                             m_FontFaceNormal, m_FontFaceFixed);
 810     }
 811
 812     p->SetHeader(m_Headers[0], wxPAGE_EVEN);
 813     p->SetHeader(m_Headers[1], wxPAGE_ODD);
 814     p->SetFooter(m_Footers[0], wxPAGE_EVEN);
 815     p->SetFooter(m_Footers[1], wxPAGE_ODD);
 816
 817     p->SetMargins(m_PageSetupData->GetMarginTopLeft().y,
 818                     m_PageSetupData->GetMarginBottomRight().y,
 819                     m_PageSetupData->GetMarginTopLeft().x,
 820                     m_PageSetupData->GetMarginBottomRight().x);
 821
 822     return p;
 823 }
 824
 825 // A module to allow initialization/cleanup
 826 // without calling these functions from app.cpp or from
 827 // the user's application.
 828
 829 class wxHtmlPrintingModule: public wxModule
 830 {
 831 DECLARE_DYNAMIC_CLASS(wxHtmlPrintingModule)
 832 public:
 833     wxHtmlPrintingModule() : wxModule() {}
 834     bool OnInit() { return true; }
 835     void OnExit() { wxHtmlPrintout::CleanUpStatics(); }
 836 };
 837
 838 IMPLEMENT_DYNAMIC_CLASS(wxHtmlPrintingModule, wxModule)
 839
 840
 841 // This hack forces the linker to always link in m_* files
 842 // (wxHTML doesn't work without handlers from these files)
 843 #include "wx/html/forcelnk.h"
 844 FORCE_WXHTML_MODULES()
 845
 846 #endif // wxUSE_HTML & wxUSE_PRINTING_ARCHITECTURE