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 #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)) {}
 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 = wxHTML_PRINT_MAX_PAGES;
 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     // m_PageBreaks[0] = 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         if( m_PageBreaks.GetCount() > wxHTML_PRINT_MAX_PAGES)
 506         {
 507             wxMessageBox( _("HTML pagination algorithm generated more than the allowed maximum number of pages and it can't continue any longer!"),
 508             _("Warning"), wxCANCEL | wxICON_ERROR );
 509             break;
 510         }
 511     } while (pos < m_Renderer->GetTotalHeight());
 512 }
 513
 514
 515
 516 void wxHtmlPrintout::RenderPage(wxDC *dc, int page)
 517 {
 518     wxBusyCursor wait;
 519
 520     int pageWidth, pageHeight, mm_w, mm_h, dc_w, dc_h;
 521     float ppmm_h, ppmm_v;
 522
 523     GetPageSizePixels(&pageWidth, &pageHeight);
 524     GetPageSizeMM(&mm_w, &mm_h);
 525     ppmm_h = (float)pageWidth / mm_w;
 526     ppmm_v = (float)pageHeight / mm_h;
 527     dc->GetSize(&dc_w, &dc_h);
 528
 529     int ppiPrinterX, ppiPrinterY;
 530     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
 531     wxUnusedVar(ppiPrinterX);
 532     int ppiScreenX, ppiScreenY;
 533     GetPPIScreen(&ppiScreenX, &ppiScreenY);
 534     wxUnusedVar(ppiScreenX);
 535
 536     dc->SetUserScale((double)dc_w / (double)pageWidth,
 537                      (double)dc_h / (double)pageHeight);
 538
 539     m_Renderer->SetDC(dc,
 540                       (double)ppiPrinterY / TYPICAL_SCREEN_DPI,
 541                       (double)ppiPrinterY / (double)ppiScreenY);
 542
 543     dc->SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
 544
 545     m_Renderer->Render((int) (ppmm_h * m_MarginLeft),
 546                          (int) (ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight), m_PageBreaks,
 547                          m_PageBreaks[page-1], false, m_PageBreaks[page]-m_PageBreaks[page-1]);
 548
 549
 550     m_RendererHdr->SetDC(dc,
 551                          (double)ppiPrinterY / TYPICAL_SCREEN_DPI,
 552                          (double)ppiPrinterY / (double)ppiScreenY);
 553     if (m_Headers[page % 2] != wxEmptyString)
 554     {
 555         m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[page % 2], page));
 556         m_RendererHdr->Render((int) (ppmm_h * m_MarginLeft), (int) (ppmm_v * m_MarginTop), m_PageBreaks);
 557     }
 558     if (m_Footers[page % 2] != wxEmptyString)
 559     {
 560         m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[page % 2], page));
 561         m_RendererHdr->Render((int) (ppmm_h * m_MarginLeft), (int) (pageHeight - ppmm_v * m_MarginBottom - m_FooterHeight), m_PageBreaks);
 562     }
 563 }
 564
 565
 566
 567 wxString wxHtmlPrintout::TranslateHeader(const wxString& instr, int page)
 568 {
 569     wxString r = instr;
 570     wxString num;
 571
 572     num.Printf(wxT("%i"), page);
 573     r.Replace(wxT("@PAGENUM@"), num);
 574
 575     num.Printf(wxT("%lu"), (unsigned long)(m_PageBreaks.GetCount() - 1));
 576     r.Replace(wxT("@PAGESCNT@"), num);
 577
 578     const wxDateTime now = wxDateTime::Now();
 579     r.Replace(wxT("@DATE@"), now.FormatDate());
 580     r.Replace(wxT("@TIME@"), now.FormatTime());
 581
 582     r.Replace(wxT("@TITLE@"), GetTitle());
 583
 584     return r;
 585 }
 586
 587
 588
 589 void wxHtmlPrintout::SetMargins(float top, float bottom, float left, float right, float spaces)
 590 {
 591     m_MarginTop = top;
 592     m_MarginBottom = bottom;
 593     m_MarginLeft = left;
 594     m_MarginRight = right;
 595     m_MarginSpace = spaces;
 596 }
 597
 598
 599
 600
 601 void wxHtmlPrintout::SetFonts(const wxString& normal_face, const wxString& fixed_face,
 602                               const int *sizes)
 603 {
 604     m_Renderer->SetFonts(normal_face, fixed_face, sizes);
 605     m_RendererHdr->SetFonts(normal_face, fixed_face, sizes);
 606 }
 607
 608 void wxHtmlPrintout::SetStandardFonts(int size,
 609                                       const wxString& normal_face,
 610                                       const wxString& fixed_face)
 611 {
 612     m_Renderer->SetStandardFonts(size, normal_face, fixed_face);
 613     m_RendererHdr->SetStandardFonts(size, normal_face, fixed_face);
 614 }
 615
 616
 617
 618 //----------------------------------------------------------------------------
 619 // wxHtmlEasyPrinting
 620 //----------------------------------------------------------------------------
 621
 622
 623 wxHtmlEasyPrinting::wxHtmlEasyPrinting(const wxString& name, wxWindow *parentWindow)
 624 {
 625     m_ParentWindow = parentWindow;
 626     m_Name = name;
 627     m_PrintData = NULL;
 628     m_PageSetupData = new wxPageSetupDialogData;
 629     m_Headers[0] = m_Headers[1] = m_Footers[0] = m_Footers[1] = wxEmptyString;
 630
 631     m_PageSetupData->EnableMargins(true);
 632     m_PageSetupData->SetMarginTopLeft(wxPoint(25, 25));
 633     m_PageSetupData->SetMarginBottomRight(wxPoint(25, 25));
 634
 635     SetStandardFonts(DEFAULT_PRINT_FONT_SIZE);
 636 }
 637
 638
 639
 640 wxHtmlEasyPrinting::~wxHtmlEasyPrinting()
 641 {
 642     delete m_PrintData;
 643     delete m_PageSetupData;
 644 }
 645
 646
 647 wxPrintData *wxHtmlEasyPrinting::GetPrintData()
 648 {
 649     if (m_PrintData == NULL)
 650         m_PrintData = new wxPrintData();
 651     return m_PrintData;
 652 }
 653
 654
 655 bool wxHtmlEasyPrinting::PreviewFile(const wxString &htmlfile)
 656 {
 657     wxHtmlPrintout *p1 = CreatePrintout();
 658     p1->SetHtmlFile(htmlfile);
 659     wxHtmlPrintout *p2 = CreatePrintout();
 660     p2->SetHtmlFile(htmlfile);
 661     return DoPreview(p1, p2);
 662 }
 663
 664
 665
 666 bool wxHtmlEasyPrinting::PreviewText(const wxString &htmltext, const wxString &basepath)
 667 {
 668     wxHtmlPrintout *p1 = CreatePrintout();
 669     p1->SetHtmlText(htmltext, basepath, true);
 670     wxHtmlPrintout *p2 = CreatePrintout();
 671     p2->SetHtmlText(htmltext, basepath, true);
 672     return DoPreview(p1, p2);
 673 }
 674
 675
 676
 677 bool wxHtmlEasyPrinting::PrintFile(const wxString &htmlfile)
 678 {
 679     wxHtmlPrintout *p = CreatePrintout();
 680     p->SetHtmlFile(htmlfile);
 681     bool ret = DoPrint(p);
 682     delete p;
 683     return ret;
 684 }
 685
 686
 687
 688 bool wxHtmlEasyPrinting::PrintText(const wxString &htmltext, const wxString &basepath)
 689 {
 690     wxHtmlPrintout *p = CreatePrintout();
 691     p->SetHtmlText(htmltext, basepath, true);
 692     bool ret = DoPrint(p);
 693     delete p;
 694     return ret;
 695 }
 696
 697
 698
 699 bool wxHtmlEasyPrinting::DoPreview(wxHtmlPrintout *printout1, wxHtmlPrintout *printout2)
 700 {
 701     // Pass two printout objects: for preview, and possible printing.
 702     wxPrintDialogData printDialogData(*GetPrintData());
 703     wxPrintPreview *preview = new wxPrintPreview(printout1, printout2, &printDialogData);
 704     if (!preview->Ok())
 705     {
 706         delete preview;
 707         return false;
 708     }
 709
 710     wxPreviewFrame *frame = new wxPreviewFrame(preview, m_ParentWindow,
 711                                                m_Name + _(" Preview"),
 712                                                wxPoint(100, 100), wxSize(650, 500));
 713     frame->Centre(wxBOTH);
 714     frame->Initialize();
 715     frame->Show(true);
 716     return true;
 717 }
 718
 719
 720
 721 bool wxHtmlEasyPrinting::DoPrint(wxHtmlPrintout *printout)
 722 {
 723     wxPrintDialogData printDialogData(*GetPrintData());
 724     wxPrinter printer(&printDialogData);
 725
 726     if (!printer.Print(m_ParentWindow, printout, true))
 727     {
 728         return false;
 729     }
 730
 731     (*GetPrintData()) = printer.GetPrintDialogData().GetPrintData();
 732     return true;
 733 }
 734
 735
 736
 737
 738 void wxHtmlEasyPrinting::PageSetup()
 739 {
 740     if (!GetPrintData()->Ok())
 741     {
 742         wxLogError(_("There was a problem during page setup: you may need to set a default printer."));
 743         return;
 744     }
 745
 746     m_PageSetupData->SetPrintData(*GetPrintData());
 747     wxPageSetupDialog pageSetupDialog(m_ParentWindow, m_PageSetupData);
 748
 749     if (pageSetupDialog.ShowModal() == wxID_OK)
 750     {
 751         (*GetPrintData()) = pageSetupDialog.GetPageSetupData().GetPrintData();
 752         (*m_PageSetupData) = pageSetupDialog.GetPageSetupData();
 753     }
 754 }
 755
 756
 757
 758 void wxHtmlEasyPrinting::SetHeader(const wxString& header, int pg)
 759 {
 760     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 761         m_Headers[0] = header;
 762     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 763         m_Headers[1] = header;
 764 }
 765
 766
 767
 768 void wxHtmlEasyPrinting::SetFooter(const wxString& footer, int pg)
 769 {
 770     if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN)
 771         m_Footers[0] = footer;
 772     if (pg == wxPAGE_ALL || pg == wxPAGE_ODD)
 773         m_Footers[1] = footer;
 774 }
 775
 776
 777 void wxHtmlEasyPrinting::SetFonts(const wxString& normal_face, const wxString& fixed_face,
 778                                   const int *sizes)
 779 {
 780     m_fontMode = FontMode_Explicit;
 781     m_FontFaceNormal = normal_face;
 782     m_FontFaceFixed = fixed_face;
 783
 784     if (sizes)
 785     {
 786         m_FontsSizes = m_FontsSizesArr;
 787         for (int i = 0; i < 7; i++) m_FontsSizes[i] = sizes[i];
 788     }
 789     else
 790         m_FontsSizes = NULL;
 791 }
 792
 793 void wxHtmlEasyPrinting::SetStandardFonts(int size,
 794                                           const wxString& normal_face,
 795                                           const wxString& fixed_face)
 796 {
 797     m_fontMode = FontMode_Standard;
 798     m_FontFaceNormal = normal_face;
 799     m_FontFaceFixed = fixed_face;
 800     m_FontsSizesArr[0] = size;
 801 }
 802
 803
 804 wxHtmlPrintout *wxHtmlEasyPrinting::CreatePrintout()
 805 {
 806     wxHtmlPrintout *p = new wxHtmlPrintout(m_Name);
 807
 808     if (m_fontMode == FontMode_Explicit)
 809     {
 810         p->SetFonts(m_FontFaceNormal, m_FontFaceFixed, m_FontsSizes);
 811     }
 812     else // FontMode_Standard
 813     {
 814         p->SetStandardFonts(m_FontsSizesArr[0],
 815                             m_FontFaceNormal, m_FontFaceFixed);
 816     }
 817
 818     p->SetHeader(m_Headers[0], wxPAGE_EVEN);
 819     p->SetHeader(m_Headers[1], wxPAGE_ODD);
 820     p->SetFooter(m_Footers[0], wxPAGE_EVEN);
 821     p->SetFooter(m_Footers[1], wxPAGE_ODD);
 822
 823     p->SetMargins(m_PageSetupData->GetMarginTopLeft().y,
 824                     m_PageSetupData->GetMarginBottomRight().y,
 825                     m_PageSetupData->GetMarginTopLeft().x,
 826                     m_PageSetupData->GetMarginBottomRight().x);
 827
 828     return p;
 829 }
 830
 831 // A module to allow initialization/cleanup
 832 // without calling these functions from app.cpp or from
 833 // the user's application.
 834
 835 class wxHtmlPrintingModule: public wxModule
 836 {
 837 DECLARE_DYNAMIC_CLASS(wxHtmlPrintingModule)
 838 public:
 839     wxHtmlPrintingModule() : wxModule() {}
 840     bool OnInit() { return true; }
 841     void OnExit() { wxHtmlPrintout::CleanUpStatics(); }
 842 };
 843
 844 IMPLEMENT_DYNAMIC_CLASS(wxHtmlPrintingModule, wxModule)
 845
 846
 847 // This hack forces the linker to always link in m_* files
 848 // (wxHTML doesn't work without handlers from these files)
 849 #include "wx/html/forcelnk.h"
 850 FORCE_WXHTML_MODULES()
 851
 852 #endif // wxUSE_HTML & wxUSE_PRINTING_ARCHITECTURE