///////////////////////////////////////////////////////////////////////////// // Name: htmprint.h // Purpose: html printing classes // Author: Vaclav Slavik // Created: 25/09/99 // RCS-ID: $Id$ // Copyright: (c) // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #ifndef _WX_HTMPRINT_H_ #define _WX_HTMPRINT_H_ #ifdef __GNUG__ #pragma interface #endif #include #if wxUSE_HTML & wxUSE_PRINTING_ARCHITECTURE #include "wx/html/htmlcell.h" #include "wx/html/winpars.h" #include "wx/print.h" #include "wx/printdlg.h" //-------------------------------------------------------------------------------- // wxHtmlDCRenderer // This class is capable of rendering HTML into specified // portion of DC //-------------------------------------------------------------------------------- class WXDLLEXPORT wxHtmlDCRenderer : public wxObject { public: wxHtmlDCRenderer(); ~wxHtmlDCRenderer(); // Following 3 methods *must* be called before any call to Render: void SetDC(wxDC *dc, int maxwidth); // asign DC to this render // maxwidth is width of area (on this DC) that is equivalent to screen's width, in pixels // (you should set it to page width minus margins) // Also see SetSize void SetSize(int width, int height); // sets size of output rectangle, in pixels. Note that you *can't* change // width of the rectangle between calls to Render! (You can freely change height.) // If you set width = maxwidth then HTML is rendered as if it were displayed in fullscreen. // If you set width = 1/2 maxwidth the it is rendered as if it covered half the screen // and so on.. void SetHtmlText(const wxString& html, const wxString& basepath = wxEmptyString, bool isdir = TRUE); // sets the text to be displayed // // basepath is base directory (html string would be stored there if it was in // file). It is used to determine path for loading images, for example. // isdir is FALSE if basepath is filename, TRUE if it is directory name // (see wxFileSystem for detailed explanation) int Render(int x, int y, int from = 0, int dont_render = FALSE); // [x,y] is position of upper-left corner of printing rectangle (see SetSize) // from is y-coordinate of the very first visible cell // Returned value is y coordinate of first cell than didn't fit onto page. // Use this value as 'from' in next call to Render in order to print multiple pages // document // If dont_render is TRUE then nothing is rendered into DC and it only counts // pixels and return y coord of the next page // // CAUTION! Render() changes DC's user scale and does NOT restore it! int GetTotalHeight(); // returns total height of the html document // (compare Render's return value with this) private: wxDC *m_DC; wxHtmlWinParser *m_Parser; wxFileSystem *m_FS; wxHtmlContainerCell *m_Cells; int m_MaxWidth, m_Width, m_Height; double m_Scale; }; enum { wxPAGE_ODD, wxPAGE_EVEN, wxPAGE_ALL }; //-------------------------------------------------------------------------------- // wxHtmlPrintout // This class is derived from standard wxWindows printout class // and is used to print HTML documents. //-------------------------------------------------------------------------------- class WXDLLEXPORT wxHtmlPrintout : public wxPrintout { public: wxHtmlPrintout(const wxString& title = "Printout"); ~wxHtmlPrintout(); void SetHtmlText(const wxString& html, const wxString &basepath = wxEmptyString, bool isdir = TRUE); // prepares the class for printing this html document. // Must be called before using the class, in fact just after constructor // // basepath is base directory (html string would be stored there if it was in // file). It is used to determine path for loading images, for example. // isdir is FALSE if basepath is filename, TRUE if it is directory name // (see wxFileSystem for detailed explanation) void SetHtmlFile(const wxString &htmlfile); // same as SetHtmlText except that it takes regular file as the parameter void SetHeader(const wxString& header, int pg = wxPAGE_ALL); void SetFooter(const wxString& footer, int pg = wxPAGE_ALL); // sets header/footer for the document. The argument is interpreted as HTML document. // You can use macros in it: // @PAGENUM@ is replaced by page number // @PAGESCNT@ is replaced by total number of pages // // pg is one of wxPAGE_ODD, wxPAGE_EVEN and wx_PAGE_ALL constants. // You can set different header/footer for odd and even pages void SetMargins(float top = 25.2, float bottom = 25.2, float left = 25.2, float right = 25.2, float spaces = 5); // sets margins in milimeters. Defaults to 1 inch for margins and 0.5cm for space // between text and header and/or footer // wxPrintout stuff: bool OnPrintPage(int page); bool HasPage(int page); void GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo); void OnBeginPrinting(); private: void RenderPage(wxDC *dc, int page); // renders one page into dc wxString TranslateHeader(const wxString& instr, int page); // substitute @PAGENUM@ and @PAGESCNT@ by real values void CountPages(); // counts pages and fills m_NumPages and m_PageBreaks private: int m_NumPages; int m_PageBreaks[wxHTML_PRINT_MAX_PAGES]; wxString m_Document, m_BasePath; bool m_BasePathIsDir; wxString m_Headers[2], m_Footers[2]; int m_HeaderHeight, m_FooterHeight; wxHtmlDCRenderer *m_Renderer, *m_RendererHdr; float m_MarginTop, m_MarginBottom, m_MarginLeft, m_MarginRight, m_MarginSpace; }; //-------------------------------------------------------------------------------- // wxHtmlEasyPrinting // This class provides very simple interface to printing // architecture. It allows you to print HTML documents only // with very few commands. // // Note : do not create this class on stack only. // You should create an instance on app startup and // use this instance for all printing. Why? The class // stores page&printer settings in it. //-------------------------------------------------------------------------------- class WXDLLEXPORT wxHtmlEasyPrinting : public wxObject { public: wxHtmlEasyPrinting(const wxString& name = "Printing", wxFrame *parent_frame = NULL); ~wxHtmlEasyPrinting(); void PreviewFile(const wxString &htmlfile); void PreviewText(const wxString &htmltext, const wxString& basepath = wxEmptyString); // Preview file / html-text for printing // (and offers printing) // basepath is base directory for opening subsequent files (e.g. from tag) void PrintFile(const wxString &htmlfile); void PrintText(const wxString &htmltext, const wxString& basepath = wxEmptyString); // Print file / html-text w/o preview void PrinterSetup(); void PageSetup(); // pop up printer or page setup dialog void SetHeader(const wxString& header, int pg = wxPAGE_ALL); void SetFooter(const wxString& footer, int pg = wxPAGE_ALL); // sets header/footer for the document. The argument is interpreted as HTML document. // You can use macros in it: // @PAGENUM@ is replaced by page number // @PAGESCNT@ is replaced by total number of pages // // pg is one of wxPAGE_ODD, wxPAGE_EVEN and wx_PAGE_ALL constants. // You can set different header/footer for odd and even pages wxPrintData *GetPrintData() {return m_PrintData;} wxPageSetupDialogData *GetPageSetupData() {return m_PageSetupData;} // return page setting data objects. // (You can set their parameters.) private: wxHtmlPrintout *CreatePrintout(); void DoPreview(wxHtmlPrintout *printout1, wxHtmlPrintout *printout2); void DoPrint(wxHtmlPrintout *printout); wxPrintData *m_PrintData; wxPageSetupDialogData *m_PageSetupData; wxString m_Name; wxString m_Headers[2], m_Footers[2]; wxFrame *m_Frame; }; #endif // wxUSE_HTML & wxUSE_PRINTING_ARCHITECTURE #endif // _WX_HTMPRINT_H_