///////////////////////////////////////////////////////////////////////////// // Name: src/html/htmprint.cpp // Purpose: html printing classes // Author: Vaclav Slavik // Created: 25/09/99 // Copyright: (c) Vaclav Slavik, 1999 // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// // For compilers that support precompilation, includes "wx/wx.h". #include "wx/wxprec.h" #ifdef __BORLANDC__ #pragma hdrstop #endif #if wxUSE_HTML && wxUSE_PRINTING_ARCHITECTURE && wxUSE_STREAMS #ifndef WX_PRECOMP #include "wx/log.h" #include "wx/intl.h" #include "wx/dc.h" #include "wx/settings.h" #include "wx/msgdlg.h" #include "wx/module.h" #include "wx/sizer.h" #endif #include "wx/print.h" #include "wx/printdlg.h" #include "wx/html/htmprint.h" #include "wx/wxhtml.h" #include "wx/wfstream.h" #include "wx/infobar.h" // default font size of normal text (HTML font size 0) for printing, in points: #define DEFAULT_PRINT_FONT_SIZE 12 // CSS specification offer following guidance on dealing with pixel sizes // when printing at // http://www.w3.org/TR/2004/CR-CSS21-20040225/syndata.html#length-units: // // Pixel units are relative to the resolution of the viewing device, i.e., // most often a computer display. If the pixel density of the output // device is very different from that of a typical computer display, the // user agent should rescale pixel values. It is recommended that the [ // reference pixel] be the visual angle of one pixel on a device with a // pixel density of 96dpi and a distance from the reader of an arm's // length. For a nominal arm's length of 28 inches, the visual angle is // therefore about 0.0213 degrees. // // For reading at arm's length, 1px thus corresponds to about 0.26 mm // (1/96 inch). When printed on a laser printer, meant for reading at a // little less than arm's length (55 cm, 21 inches), 1px is about 0.20 mm. // On a 300 dots-per-inch (dpi) printer, that may be rounded up to 3 dots // (0.25 mm); on a 600 dpi printer, it can be rounded to 5 dots. // // See also http://trac.wxwidgets.org/ticket/10942. #define TYPICAL_SCREEN_DPI 96.0 //-------------------------------------------------------------------------------- // wxHtmlDCRenderer //-------------------------------------------------------------------------------- wxHtmlDCRenderer::wxHtmlDCRenderer() : wxObject() { m_DC = NULL; m_Width = m_Height = 0; m_Cells = NULL; m_Parser = new wxHtmlWinParser(); m_FS = new wxFileSystem(); m_Parser->SetFS(m_FS); SetStandardFonts(DEFAULT_PRINT_FONT_SIZE); } wxHtmlDCRenderer::~wxHtmlDCRenderer() { if (m_Cells) delete m_Cells; if (m_Parser) delete m_Parser; if (m_FS) delete m_FS; } void wxHtmlDCRenderer::SetDC(wxDC *dc, double pixel_scale, double font_scale) { m_DC = dc; m_Parser->SetDC(m_DC, pixel_scale, font_scale); } void wxHtmlDCRenderer::SetSize(int width, int height) { wxCHECK_RET( width, "width must be non-zero" ); wxCHECK_RET( height, "height must be non-zero" ); m_Width = width; m_Height = height; } void wxHtmlDCRenderer::SetHtmlText(const wxString& html, const wxString& basepath, bool isdir) { wxCHECK_RET( m_DC, "SetDC() must be called before SetHtmlText()" ); wxCHECK_RET( m_Width, "SetSize() must be called before SetHtmlText()" ); wxDELETE(m_Cells); m_FS->ChangePathTo(basepath, isdir); m_Cells = (wxHtmlContainerCell*) m_Parser->Parse(html); m_Cells->SetIndent(0, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS); m_Cells->Layout(m_Width); } void wxHtmlDCRenderer::SetFonts(const wxString& normal_face, const wxString& fixed_face, const int *sizes) { m_Parser->SetFonts(normal_face, fixed_face, sizes); if ( m_Cells ) m_Cells->Layout(m_Width); // else: SetHtmlText() not yet called, no need for relayout } void wxHtmlDCRenderer::SetStandardFonts(int size, const wxString& normal_face, const wxString& fixed_face) { m_Parser->SetStandardFonts(size, normal_face, fixed_face); if ( m_Cells ) m_Cells->Layout(m_Width); // else: SetHtmlText() not yet called, no need for relayout } int wxHtmlDCRenderer::Render(int x, int y, wxArrayInt& known_pagebreaks, int from, int dont_render, int to) { wxCHECK_MSG( m_Cells, 0, "SetHtmlText() must be called before Render()" ); wxCHECK_MSG( m_DC, 0, "SetDC() must be called before Render()" ); int pbreak, hght; pbreak = (int)(from + m_Height); while (m_Cells->AdjustPagebreak(&pbreak, known_pagebreaks, m_Height)) {} hght = pbreak - from; if(to < hght) hght = to; if (!dont_render) { wxHtmlRenderingInfo rinfo; wxDefaultHtmlRenderingStyle rstyle; rinfo.SetStyle(&rstyle); m_DC->SetBrush(*wxWHITE_BRUSH); m_DC->SetClippingRegion(x, y, m_Width, hght); m_Cells->Draw(*m_DC, x, (y - from), y, y + hght, rinfo); m_DC->DestroyClippingRegion(); } if (pbreak < m_Cells->GetHeight()) return pbreak; else return GetTotalHeight(); } int wxHtmlDCRenderer::GetTotalWidth() const { return m_Cells ? m_Cells->GetWidth() : 0; } int wxHtmlDCRenderer::GetTotalHeight() const { return m_Cells ? m_Cells->GetHeight() : 0; } //-------------------------------------------------------------------------------- // wxHtmlPrintout //-------------------------------------------------------------------------------- wxList wxHtmlPrintout::m_Filters; wxHtmlPrintout::wxHtmlPrintout(const wxString& title) : wxPrintout(title) { m_Renderer = new wxHtmlDCRenderer; m_RendererHdr = new wxHtmlDCRenderer; m_NumPages = INT_MAX; m_Document = m_BasePath = wxEmptyString; m_BasePathIsDir = true; m_Headers[0] = m_Headers[1] = wxEmptyString; m_Footers[0] = m_Footers[1] = wxEmptyString; m_HeaderHeight = m_FooterHeight = 0; SetMargins(); // to default values SetStandardFonts(DEFAULT_PRINT_FONT_SIZE); } wxHtmlPrintout::~wxHtmlPrintout() { delete m_Renderer; delete m_RendererHdr; } void wxHtmlPrintout::CleanUpStatics() { WX_CLEAR_LIST(wxList, m_Filters); } // Adds input filter void wxHtmlPrintout::AddFilter(wxHtmlFilter *filter) { m_Filters.Append(filter); } bool wxHtmlPrintout::CheckFit(const wxSize& pageArea, const wxSize& docArea) const { // Nothing to do if the contents fits horizontally. if ( docArea.x <= pageArea.x ) return true; // Otherwise warn the user more or less intrusively depending on whether // we're previewing or printing: if ( wxPrintPreview * const preview = GetPreview() ) { // Don't annoy the user too much when previewing by using info bar // instead of a dialog box. #if wxUSE_INFOBAR wxFrame * const parent = preview->GetFrame(); wxCHECK_MSG( parent, false, "No parent preview frame?" ); wxSizer * const sizer = parent->GetSizer(); wxCHECK_MSG( sizer, false, "Preview frame should be using sizers" ); wxInfoBar * const bar = new wxInfoBar(parent); sizer->Add(bar, wxSizerFlags().Expand()); // Note that the message here is similar to the one below but not // exactly the same, notably we don't use the document title here // because it's already clear which document it pertains to and the // title may be long enough to make the text not fit in the window. bar->ShowMessage ( _("This document doesn't fit on the page horizontally and " "will be truncated when it is printed."), wxICON_WARNING ); #endif // wxUSE_INFOBAR } else // We're going to really print and not just preview. { // This is our last chance to warn the user that the output will be // mangled so do show a message box. wxMessageDialog dlg ( NULL, wxString::Format ( _("The document \"%s\" doesn't fit on the page " "horizontally and will be truncated if printed.\n" "\n" "Would you like to proceed with printing it nevertheless?"), GetTitle() ), _("Printing"), wxOK | wxCANCEL | wxCANCEL_DEFAULT | wxICON_QUESTION ); dlg.SetExtendedMessage ( _("If possible, try changing the layout parameters to " "make the printout more narrow.") ); dlg.SetOKLabel(wxID_PRINT); if ( dlg.ShowModal() == wxID_CANCEL ) return false; } return true; } void wxHtmlPrintout::OnPreparePrinting() { int pageWidth, pageHeight, mm_w, mm_h, dc_w, dc_h; float ppmm_h, ppmm_v; GetPageSizePixels(&pageWidth, &pageHeight); GetPageSizeMM(&mm_w, &mm_h); ppmm_h = (float)pageWidth / mm_w; ppmm_v = (float)pageHeight / mm_h; int ppiPrinterX, ppiPrinterY; GetPPIPrinter(&ppiPrinterX, &ppiPrinterY); wxUnusedVar(ppiPrinterX); int ppiScreenX, ppiScreenY; GetPPIScreen(&ppiScreenX, &ppiScreenY); wxUnusedVar(ppiScreenX); GetDC()->GetSize(&dc_w, &dc_h); GetDC()->SetUserScale((double)dc_w / (double)pageWidth, (double)dc_h / (double)pageHeight); /* prepare headers/footers renderer: */ m_RendererHdr->SetDC(GetDC(), (double)ppiPrinterY / TYPICAL_SCREEN_DPI, (double)ppiPrinterY / (double)ppiScreenY); m_RendererHdr->SetSize((int) (ppmm_h * (mm_w - m_MarginLeft - m_MarginRight)), (int) (ppmm_v * (mm_h - m_MarginTop - m_MarginBottom))); if (m_Headers[0] != wxEmptyString) { m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[0], 1)); m_HeaderHeight = m_RendererHdr->GetTotalHeight(); } else if (m_Headers[1] != wxEmptyString) { m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[1], 1)); m_HeaderHeight = m_RendererHdr->GetTotalHeight(); } if (m_Footers[0] != wxEmptyString) { m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[0], 1)); m_FooterHeight = m_RendererHdr->GetTotalHeight(); } else if (m_Footers[1] != wxEmptyString) { m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[1], 1)); m_FooterHeight = m_RendererHdr->GetTotalHeight(); } /* prepare main renderer: */ m_Renderer->SetDC(GetDC(), (double)ppiPrinterY / TYPICAL_SCREEN_DPI, (double)ppiPrinterY / (double)ppiScreenY); const int printAreaW = int(ppmm_h * (mm_w - m_MarginLeft - m_MarginRight)); int printAreaH = int(ppmm_v * (mm_h - m_MarginTop - m_MarginBottom)); if ( m_HeaderHeight ) printAreaH -= int(m_HeaderHeight + m_MarginSpace * ppmm_v); if ( m_FooterHeight ) printAreaH -= int(m_FooterHeight + m_MarginSpace * ppmm_v); m_Renderer->SetSize(printAreaW, printAreaH); m_Renderer->SetHtmlText(m_Document, m_BasePath, m_BasePathIsDir); if ( CheckFit(wxSize(printAreaW, printAreaH), wxSize(m_Renderer->GetTotalWidth(), m_Renderer->GetTotalHeight())) || IsPreview() ) { // do paginate the document CountPages(); } //else: if we don't call CountPages() m_PageBreaks remains empty and our // GetPageInfo() will return 0 as max page and so nothing will be // printed } bool wxHtmlPrintout::OnBeginDocument(int startPage, int endPage) { if (!wxPrintout::OnBeginDocument(startPage, endPage)) return false; return true; } bool wxHtmlPrintout::OnPrintPage(int page) { wxDC *dc = GetDC(); if (dc && dc->IsOk()) { if (HasPage(page)) RenderPage(dc, page); return true; } else return false; } void wxHtmlPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo) { *minPage = 1; if ( m_NumPages >= (signed)m_PageBreaks.GetCount()-1) *maxPage = m_NumPages; else *maxPage = (signed)m_PageBreaks.GetCount()-1; *selPageFrom = 1; *selPageTo = (signed)m_PageBreaks.GetCount()-1; } bool wxHtmlPrintout::HasPage(int pageNum) { return pageNum > 0 && (unsigned)pageNum < m_PageBreaks.GetCount(); } void wxHtmlPrintout::SetHtmlText(const wxString& html, const wxString &basepath, bool isdir) { m_Document = html; m_BasePath = basepath; m_BasePathIsDir = isdir; } void wxHtmlPrintout::SetHtmlFile(const wxString& htmlfile) { wxFileSystem fs; wxFSFile *ff; if (wxFileExists(htmlfile)) ff = fs.OpenFile(wxFileSystem::FileNameToURL(htmlfile)); else ff = fs.OpenFile(htmlfile); if (ff == NULL) { wxLogError(htmlfile + _(": file does not exist!")); return; } bool done = false; wxHtmlFilterHTML defaultFilter; wxString doc; wxList::compatibility_iterator node = m_Filters.GetFirst(); while (node) { wxHtmlFilter *h = (wxHtmlFilter*) node->GetData(); if (h->CanRead(*ff)) { doc = h->ReadFile(*ff); done = true; break; } node = node->GetNext(); } if (!done) doc = defaultFilter.ReadFile(*ff); SetHtmlText(doc, htmlfile, false); delete ff; } void wxHtmlPrintout::SetHeader(const wxString& header, int pg) { if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN) m_Headers[0] = header; if (pg == wxPAGE_ALL || pg == wxPAGE_ODD) m_Headers[1] = header; } void wxHtmlPrintout::SetFooter(const wxString& footer, int pg) { if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN) m_Footers[0] = footer; if (pg == wxPAGE_ALL || pg == wxPAGE_ODD) m_Footers[1] = footer; } void wxHtmlPrintout::CountPages() { wxBusyCursor wait; int pageWidth, pageHeight, mm_w, mm_h; float ppmm_h, ppmm_v; GetPageSizePixels(&pageWidth, &pageHeight); GetPageSizeMM(&mm_w, &mm_h); ppmm_h = (float)pageWidth / mm_w; ppmm_v = (float)pageHeight / mm_h; int pos = 0; m_NumPages = 0; m_PageBreaks.Clear(); m_PageBreaks.Add( 0); do { pos = m_Renderer->Render((int)( ppmm_h * m_MarginLeft), (int) (ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight), m_PageBreaks, pos, true, INT_MAX); m_PageBreaks.Add( pos); } while (pos < m_Renderer->GetTotalHeight()); } void wxHtmlPrintout::RenderPage(wxDC *dc, int page) { wxBusyCursor wait; int pageWidth, pageHeight, mm_w, mm_h, dc_w, dc_h; float ppmm_h, ppmm_v; GetPageSizePixels(&pageWidth, &pageHeight); GetPageSizeMM(&mm_w, &mm_h); ppmm_h = (float)pageWidth / mm_w; ppmm_v = (float)pageHeight / mm_h; dc->GetSize(&dc_w, &dc_h); int ppiPrinterX, ppiPrinterY; GetPPIPrinter(&ppiPrinterX, &ppiPrinterY); wxUnusedVar(ppiPrinterX); int ppiScreenX, ppiScreenY; GetPPIScreen(&ppiScreenX, &ppiScreenY); wxUnusedVar(ppiScreenX); dc->SetUserScale((double)dc_w / (double)pageWidth, (double)dc_h / (double)pageHeight); m_Renderer->SetDC(dc, (double)ppiPrinterY / TYPICAL_SCREEN_DPI, (double)ppiPrinterY / (double)ppiScreenY); dc->SetBackgroundMode(wxTRANSPARENT); m_Renderer->Render((int) (ppmm_h * m_MarginLeft), (int) (ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight), m_PageBreaks, m_PageBreaks[page-1], false, m_PageBreaks[page]-m_PageBreaks[page-1]); m_RendererHdr->SetDC(dc, (double)ppiPrinterY / TYPICAL_SCREEN_DPI, (double)ppiPrinterY / (double)ppiScreenY); if (m_Headers[page % 2] != wxEmptyString) { m_RendererHdr->SetHtmlText(TranslateHeader(m_Headers[page % 2], page)); m_RendererHdr->Render((int) (ppmm_h * m_MarginLeft), (int) (ppmm_v * m_MarginTop), m_PageBreaks); } if (m_Footers[page % 2] != wxEmptyString) { m_RendererHdr->SetHtmlText(TranslateHeader(m_Footers[page % 2], page)); m_RendererHdr->Render((int) (ppmm_h * m_MarginLeft), (int) (pageHeight - ppmm_v * m_MarginBottom - m_FooterHeight), m_PageBreaks); } } wxString wxHtmlPrintout::TranslateHeader(const wxString& instr, int page) { wxString r = instr; wxString num; num.Printf(wxT("%i"), page); r.Replace(wxT("@PAGENUM@"), num); num.Printf(wxT("%lu"), (unsigned long)(m_PageBreaks.GetCount() - 1)); r.Replace(wxT("@PAGESCNT@"), num); const wxDateTime now = wxDateTime::Now(); r.Replace(wxT("@DATE@"), now.FormatDate()); r.Replace(wxT("@TIME@"), now.FormatTime()); r.Replace(wxT("@TITLE@"), GetTitle()); return r; } void wxHtmlPrintout::SetMargins(float top, float bottom, float left, float right, float spaces) { m_MarginTop = top; m_MarginBottom = bottom; m_MarginLeft = left; m_MarginRight = right; m_MarginSpace = spaces; } void wxHtmlPrintout::SetFonts(const wxString& normal_face, const wxString& fixed_face, const int *sizes) { m_Renderer->SetFonts(normal_face, fixed_face, sizes); m_RendererHdr->SetFonts(normal_face, fixed_face, sizes); } void wxHtmlPrintout::SetStandardFonts(int size, const wxString& normal_face, const wxString& fixed_face) { m_Renderer->SetStandardFonts(size, normal_face, fixed_face); m_RendererHdr->SetStandardFonts(size, normal_face, fixed_face); } //---------------------------------------------------------------------------- // wxHtmlEasyPrinting //---------------------------------------------------------------------------- wxHtmlEasyPrinting::wxHtmlEasyPrinting(const wxString& name, wxWindow *parentWindow) { m_ParentWindow = parentWindow; m_Name = name; m_PrintData = NULL; m_PageSetupData = new wxPageSetupDialogData; m_Headers[0] = m_Headers[1] = m_Footers[0] = m_Footers[1] = wxEmptyString; m_PageSetupData->EnableMargins(true); m_PageSetupData->SetMarginTopLeft(wxPoint(25, 25)); m_PageSetupData->SetMarginBottomRight(wxPoint(25, 25)); SetStandardFonts(DEFAULT_PRINT_FONT_SIZE); } wxHtmlEasyPrinting::~wxHtmlEasyPrinting() { delete m_PrintData; delete m_PageSetupData; } wxPrintData *wxHtmlEasyPrinting::GetPrintData() { if (m_PrintData == NULL) m_PrintData = new wxPrintData(); return m_PrintData; } bool wxHtmlEasyPrinting::PreviewFile(const wxString &htmlfile) { wxHtmlPrintout *p1 = CreatePrintout(); p1->SetHtmlFile(htmlfile); wxHtmlPrintout *p2 = CreatePrintout(); p2->SetHtmlFile(htmlfile); return DoPreview(p1, p2); } bool wxHtmlEasyPrinting::PreviewText(const wxString &htmltext, const wxString &basepath) { wxHtmlPrintout *p1 = CreatePrintout(); p1->SetHtmlText(htmltext, basepath, true); wxHtmlPrintout *p2 = CreatePrintout(); p2->SetHtmlText(htmltext, basepath, true); return DoPreview(p1, p2); } bool wxHtmlEasyPrinting::PrintFile(const wxString &htmlfile) { wxHtmlPrintout *p = CreatePrintout(); p->SetHtmlFile(htmlfile); bool ret = DoPrint(p); delete p; return ret; } bool wxHtmlEasyPrinting::PrintText(const wxString &htmltext, const wxString &basepath) { wxHtmlPrintout *p = CreatePrintout(); p->SetHtmlText(htmltext, basepath, true); bool ret = DoPrint(p); delete p; return ret; } bool wxHtmlEasyPrinting::DoPreview(wxHtmlPrintout *printout1, wxHtmlPrintout *printout2) { // Pass two printout objects: for preview, and possible printing. wxPrintDialogData printDialogData(*GetPrintData()); wxPrintPreview *preview = new wxPrintPreview(printout1, printout2, &printDialogData); if (!preview->IsOk()) { delete preview; return false; } wxPreviewFrame *frame = new wxPreviewFrame(preview, m_ParentWindow, m_Name + _(" Preview"), wxPoint(100, 100), wxSize(650, 500)); frame->Centre(wxBOTH); frame->Initialize(); frame->Show(true); return true; } bool wxHtmlEasyPrinting::DoPrint(wxHtmlPrintout *printout) { wxPrintDialogData printDialogData(*GetPrintData()); wxPrinter printer(&printDialogData); if (!printer.Print(m_ParentWindow, printout, true)) { return false; } (*GetPrintData()) = printer.GetPrintDialogData().GetPrintData(); return true; } void wxHtmlEasyPrinting::PageSetup() { if (!GetPrintData()->IsOk()) { wxLogError(_("There was a problem during page setup: you may need to set a default printer.")); return; } m_PageSetupData->SetPrintData(*GetPrintData()); wxPageSetupDialog pageSetupDialog(m_ParentWindow, m_PageSetupData); if (pageSetupDialog.ShowModal() == wxID_OK) { (*GetPrintData()) = pageSetupDialog.GetPageSetupData().GetPrintData(); (*m_PageSetupData) = pageSetupDialog.GetPageSetupData(); } } void wxHtmlEasyPrinting::SetHeader(const wxString& header, int pg) { if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN) m_Headers[0] = header; if (pg == wxPAGE_ALL || pg == wxPAGE_ODD) m_Headers[1] = header; } void wxHtmlEasyPrinting::SetFooter(const wxString& footer, int pg) { if (pg == wxPAGE_ALL || pg == wxPAGE_EVEN) m_Footers[0] = footer; if (pg == wxPAGE_ALL || pg == wxPAGE_ODD) m_Footers[1] = footer; } void wxHtmlEasyPrinting::SetFonts(const wxString& normal_face, const wxString& fixed_face, const int *sizes) { m_fontMode = FontMode_Explicit; m_FontFaceNormal = normal_face; m_FontFaceFixed = fixed_face; if (sizes) { m_FontsSizes = m_FontsSizesArr; for (int i = 0; i < 7; i++) m_FontsSizes[i] = sizes[i]; } else m_FontsSizes = NULL; } void wxHtmlEasyPrinting::SetStandardFonts(int size, const wxString& normal_face, const wxString& fixed_face) { m_fontMode = FontMode_Standard; m_FontFaceNormal = normal_face; m_FontFaceFixed = fixed_face; m_FontsSizesArr[0] = size; } wxHtmlPrintout *wxHtmlEasyPrinting::CreatePrintout() { wxHtmlPrintout *p = new wxHtmlPrintout(m_Name); if (m_fontMode == FontMode_Explicit) { p->SetFonts(m_FontFaceNormal, m_FontFaceFixed, m_FontsSizes); } else // FontMode_Standard { p->SetStandardFonts(m_FontsSizesArr[0], m_FontFaceNormal, m_FontFaceFixed); } p->SetHeader(m_Headers[0], wxPAGE_EVEN); p->SetHeader(m_Headers[1], wxPAGE_ODD); p->SetFooter(m_Footers[0], wxPAGE_EVEN); p->SetFooter(m_Footers[1], wxPAGE_ODD); p->SetMargins(m_PageSetupData->GetMarginTopLeft().y, m_PageSetupData->GetMarginBottomRight().y, m_PageSetupData->GetMarginTopLeft().x, m_PageSetupData->GetMarginBottomRight().x); return p; } // A module to allow initialization/cleanup // without calling these functions from app.cpp or from // the user's application. class wxHtmlPrintingModule: public wxModule { DECLARE_DYNAMIC_CLASS(wxHtmlPrintingModule) public: wxHtmlPrintingModule() : wxModule() {} bool OnInit() { return true; } void OnExit() { wxHtmlPrintout::CleanUpStatics(); } }; IMPLEMENT_DYNAMIC_CLASS(wxHtmlPrintingModule, wxModule) // This hack forces the linker to always link in m_* files // (wxHTML doesn't work without handlers from these files) #include "wx/html/forcelnk.h" FORCE_WXHTML_MODULES() #endif // wxUSE_HTML & wxUSE_PRINTING_ARCHITECTURE