X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/766571a7039fe4428dabe5e2aabcb4055ceb9db9..71da935dd278521462a5da9b6a73ed1c4e4cf711:/src/html/htmprint.cpp?ds=sidebyside diff --git a/src/html/htmprint.cpp b/src/html/htmprint.cpp index 0dd8817e52..6a22f88547 100644 --- a/src/html/htmprint.cpp +++ b/src/html/htmprint.cpp @@ -23,6 +23,7 @@ #include "wx/dc.h" #include "wx/settings.h" #include "wx/msgdlg.h" + #include "wx/module.h" #endif #include "wx/print.h" @@ -30,7 +31,10 @@ #include "wx/html/htmprint.h" #include "wx/wxhtml.h" #include "wx/wfstream.h" -#include "wx/module.h" + + +// default font size of normal text (HTML font size 0) for printing, in points: +#define DEFAULT_PRINT_FONT_SIZE 12 //-------------------------------------------------------------------------------- @@ -46,6 +50,7 @@ wxHtmlDCRenderer::wxHtmlDCRenderer() : wxObject() m_Parser = new wxHtmlWinParser(); m_FS = new wxFileSystem(); m_Parser->SetFS(m_FS); + SetStandardFonts(DEFAULT_PRINT_FONT_SIZE); } @@ -69,6 +74,9 @@ void wxHtmlDCRenderer::SetDC(wxDC *dc, double pixel_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; } @@ -76,9 +84,10 @@ void wxHtmlDCRenderer::SetSize(int width, int height) void wxHtmlDCRenderer::SetHtmlText(const wxString& html, const wxString& basepath, bool isdir) { - if (m_DC == NULL) return; + wxCHECK_RET( m_DC, "SetDC() must be called before SetHtmlText()" ); + wxCHECK_RET( m_Width, "SetSize() must be called before SetHtmlText()" ); - if (m_Cells != NULL) delete m_Cells; + wxDELETE(m_Cells); m_FS->ChangePathTo(basepath, isdir); m_Cells = (wxHtmlContainerCell*) m_Parser->Parse(html); @@ -91,8 +100,10 @@ void wxHtmlDCRenderer::SetFonts(const wxString& normal_face, const wxString& fix const int *sizes) { m_Parser->SetFonts(normal_face, fixed_face, sizes); - if (m_DC == NULL && m_Cells != NULL) + + if ( m_Cells ) m_Cells->Layout(m_Width); + // else: SetHtmlText() not yet called, no need for relayout } void wxHtmlDCRenderer::SetStandardFonts(int size, @@ -100,17 +111,20 @@ void wxHtmlDCRenderer::SetStandardFonts(int size, const wxString& fixed_face) { m_Parser->SetStandardFonts(size, normal_face, fixed_face); - if (m_DC == NULL && m_Cells != NULL) + + 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) { - int pbreak, hght; + wxCHECK_MSG( m_Cells, 0, "SetHtmlText() must be called before Render()" ); + wxCHECK_MSG( m_DC, 0, "SetDC() must be called before Render()" ); - if (m_Cells == NULL || m_DC == NULL) return 0; + int pbreak, hght; pbreak = (int)(from + m_Height); while (m_Cells->AdjustPagebreak(&pbreak, known_pagebreaks)) {} @@ -127,7 +141,7 @@ int wxHtmlDCRenderer::Render(int x, int y, m_DC->SetClippingRegion(x, y, m_Width, hght); m_Cells->Draw(*m_DC, x, (y - from), - y, pbreak + (y /*- from*/), + y, y + hght, rinfo); m_DC->DestroyClippingRegion(); } @@ -136,11 +150,14 @@ int wxHtmlDCRenderer::Render(int x, int y, else return GetTotalHeight(); } +int wxHtmlDCRenderer::GetTotalWidth() const +{ + return m_Cells ? m_Cells->GetWidth() : 0; +} -int wxHtmlDCRenderer::GetTotalHeight() +int wxHtmlDCRenderer::GetTotalHeight() const { - if (m_Cells) return m_Cells->GetHeight(); - else return 0; + return m_Cells ? m_Cells->GetHeight() : 0; } @@ -161,6 +178,7 @@ wxHtmlPrintout::wxHtmlPrintout(const wxString& title) : wxPrintout(title) m_Footers[0] = m_Footers[1] = wxEmptyString; m_HeaderHeight = m_FooterHeight = 0; SetMargins(); // to default values + SetStandardFonts(DEFAULT_PRINT_FONT_SIZE); } @@ -182,6 +200,40 @@ void wxHtmlPrintout::AddFilter(wxHtmlFilter *filter) m_Filters.Append(filter); } +bool +wxHtmlPrintout::CheckFit(const wxSize& pageArea, const wxSize& docArea) const +{ + if ( docArea.x > pageArea.x ) + { + 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, scr_w, scr_h, dc_w, dc_h; @@ -194,13 +246,16 @@ void wxHtmlPrintout::OnPreparePrinting() int ppiPrinterX, ppiPrinterY; GetPPIPrinter(&ppiPrinterX, &ppiPrinterY); + wxUnusedVar(ppiPrinterX); int ppiScreenX, ppiScreenY; GetPPIScreen(&ppiScreenX, &ppiScreenY); + wxUnusedVar(ppiScreenX); wxDisplaySize(&scr_w, &scr_h); GetDC()->GetSize(&dc_w, &dc_h); - GetDC()->SetUserScale((double)dc_w / (double)pageWidth, (double)dc_w / (double)pageWidth); + GetDC()->SetUserScale((double)dc_w / (double)pageWidth, + (double)dc_h / (double)pageHeight); /* prepare headers/footers renderer: */ @@ -230,14 +285,27 @@ void wxHtmlPrintout::OnPreparePrinting() /* prepare main renderer: */ m_Renderer->SetDC(GetDC(), (double)ppiPrinterY / (double)ppiScreenY); - m_Renderer->SetSize((int) (ppmm_h * (mm_w - m_MarginLeft - m_MarginRight)), - (int) (ppmm_v * (mm_h - m_MarginTop - m_MarginBottom) - - m_FooterHeight - m_HeaderHeight - - ((m_HeaderHeight == 0) ? 0 : m_MarginSpace * ppmm_v) - - ((m_FooterHeight == 0) ? 0 : m_MarginSpace * ppmm_v) - )); + + 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); - CountPages(); + + if ( CheckFit(wxSize(printAreaW, printAreaH), + wxSize(m_Renderer->GetTotalWidth(), + m_Renderer->GetTotalHeight())) ) + { + // 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) @@ -251,7 +319,7 @@ bool wxHtmlPrintout::OnBeginDocument(int startPage, int endPage) bool wxHtmlPrintout::OnPrintPage(int page) { wxDC *dc = GetDC(); - if (dc) + if (dc && dc->IsOk()) { if (HasPage(page)) RenderPage(dc, page); @@ -264,19 +332,19 @@ bool wxHtmlPrintout::OnPrintPage(int page) void wxHtmlPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo) { *minPage = 1; - if ( m_NumPages >= (signed)m_PageBreaks.Count()-1) + if ( m_NumPages >= (signed)m_PageBreaks.GetCount()-1) *maxPage = m_NumPages; else - *maxPage = (signed)m_PageBreaks.Count()-1; + *maxPage = (signed)m_PageBreaks.GetCount()-1; *selPageFrom = 1; - *selPageTo = (signed)m_PageBreaks.Count()-1; + *selPageTo = (signed)m_PageBreaks.GetCount()-1; } bool wxHtmlPrintout::HasPage(int pageNum) { - return (pageNum >= 1 && pageNum-1 <= (signed)m_PageBreaks.Count()); + return pageNum > 0 && (unsigned)pageNum < m_PageBreaks.GetCount(); } @@ -374,9 +442,9 @@ void wxHtmlPrintout::CountPages() m_PageBreaks, pos, true, INT_MAX); m_PageBreaks.Add( pos); - if( m_PageBreaks.Count() > wxHTML_PRINT_MAX_PAGES) + if( m_PageBreaks.GetCount() > wxHTML_PRINT_MAX_PAGES) { - wxMessageBox( _("HTML pagination algorithm generated more than the allowed maximum number of pages and it can continue any longer!"), + wxMessageBox( _("HTML pagination algorithm generated more than the allowed maximum number of pages and it can't continue any longer!"), _("Warning"), wxCANCEL | wxICON_ERROR ); break; } @@ -406,11 +474,12 @@ void wxHtmlPrintout::RenderPage(wxDC *dc, int page) GetPPIScreen(&ppiScreenX, &ppiScreenY); wxUnusedVar(ppiScreenX); - dc->SetUserScale((double)dc_w / (double)pageWidth, (double)dc_w / (double)pageWidth); + dc->SetUserScale((double)dc_w / (double)pageWidth, + (double)dc_h / (double)pageHeight); m_Renderer->SetDC(dc, (double)ppiPrinterY / (double)ppiScreenY); - dc->SetBackgroundMode(wxTRANSPARENT); + dc->SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT); m_Renderer->Render((int) (ppmm_h * m_MarginLeft), (int) (ppmm_v * (m_MarginTop + (m_HeaderHeight == 0 ? 0 : m_MarginSpace)) + m_HeaderHeight), m_PageBreaks, @@ -440,7 +509,7 @@ wxString wxHtmlPrintout::TranslateHeader(const wxString& instr, int page) num.Printf(wxT("%i"), page); r.Replace(wxT("@PAGENUM@"), num); - num.Printf(wxT("%lu"), (unsigned long)(m_PageBreaks.Count() - 1)); + num.Printf(wxT("%lu"), (unsigned long)(m_PageBreaks.GetCount() - 1)); r.Replace(wxT("@PAGESCNT@"), num); const wxDateTime now = wxDateTime::Now(); @@ -500,7 +569,7 @@ wxHtmlEasyPrinting::wxHtmlEasyPrinting(const wxString& name, wxWindow *parentWin m_PageSetupData->SetMarginTopLeft(wxPoint(25, 25)); m_PageSetupData->SetMarginBottomRight(wxPoint(25, 25)); - SetFonts(wxEmptyString, wxEmptyString, NULL); + SetStandardFonts(DEFAULT_PRINT_FONT_SIZE); }