X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/5f35b46aabdab414602d27bb92034c371bc09d2e..39434ba375389eab72ad84184d6d54a92c2b3551:/docs/latex/wx/richtexthtmlhandler.tex diff --git a/docs/latex/wx/richtexthtmlhandler.tex b/docs/latex/wx/richtexthtmlhandler.tex index 17a90e9137..f0808f8a72 100644 --- a/docs/latex/wx/richtexthtmlhandler.tex +++ b/docs/latex/wx/richtexthtmlhandler.tex @@ -2,6 +2,36 @@ Handles HTML output (only) for \helpref{wxRichTextCtrl}{wxrichtextctrl} content. +The most flexible way to use this class is to create a temporary object and call +its functions directly, rather than use \helpref{wxRichTextBuffer::SaveFile}{wxrichtextbuffersavefile} or\rtfsp +\helpref{wxRichTextCtrl::SaveFile}{wxrichtextctrlsavefile}. + +Image handling requires a little extra work from the application, to choose an +appropriate image format for the target HTML viewer and to clean up the temporary images +later. If you are planning to load the HTML into a standard web browser, you can +specify the handler flag wxRICHTEXT\_HANDLER\_SAVE\_IMAGES\_TO\_BASE64 (the default) +and no extra work is required: the images will be written with the HTML. + +However, if you want wxHTML compatibility, you will need to use wxRICHTEXT\_HANDLER\_SAVE\_IMAGES\_TO\_MEMORY +or wxRICHTEXT\_HANDLER\_SAVE\_IMAGES\_TO\_FILES. In this case, you must either call \helpref{DeleteTemporaryImages}{wxrichtexthtmlhandlerdeletetemporaryimages} before +the next load operation, or you must store the image +locations and delete them yourself when appropriate. You can call \helpref{GetTemporaryImageLocations}{wxrichtexthtmlhandlergettemporaryimagelocations} to +get the array of temporary image names. + +\wxheading{Handler flags} + +The following flags can be used with this handler, via +the handler's SetFlags function or the buffer or control's +SetHandlerFlags function: + +\twocolwidtha{7cm} +\begin{twocollist}\itemsep=0pt +\twocolitem{\windowstyle{wxRICHTEXT\_HANDLER\_SAVE\_IMAGES\_TO\_MEMORY}}{Images are saved to the memory filesystem: suitable for showing wxHTML windows.} +\twocolitem{\windowstyle{wxRICHTEXT\_HANDLER\_SAVE\_IMAGES\_TO\_FILES}}{Images are saved to temporary files: suitable for showing in wxHTML windows.} +\twocolitem{\windowstyle{wxRICHTEXT\_HANDLER\_SAVE\_IMAGES\_TO\_BASE64}}{Images are written with the HTML files in Base 64 format: suitable for showing in web browsers.} +\twocolitem{\windowstyle{wxRICHTEXT\_HANDLER\_NO\_HEADER\_FOOTER}}{Don't include header and footer tags (HTML, HEAD, BODY), so that the HTML can be used as part of a larger document.} +\end{twocollist} + \wxheading{Derived from} \helpref{wxRichTextFileHandler}{wxrichtextfilehandler} @@ -20,8 +50,87 @@ Handles HTML output (only) for \helpref{wxRichTextCtrl}{wxrichtextctrl} content. Constructor. +\membersection{wxRichTextHTMLHandler::ClearTemporaryImageLocations}\label{wxrichtexthtmlhandlercleartemporaryimagelocations} + +\func{void}{ClearTemporaryImageLocations}{\void} + +Clears the image locations generated by the last operation. + +\membersection{wxRichTextHTMLHandler::DeleteTemporaryImages}\label{wxrichtexthtmlhandlerdeletetemporaryimages} + +\func{bool}{DeleteTemporaryImages}{\void} + +Deletes the in-memory or temporary files generated by the last operation. + +\func{bool}{DeleteTemporaryImages}{\param{int }{flags}, \param{const wxArrayString\& }{imageLocations}} + +Delete the in-memory or temporary files generated by the last operation. This is a static +function that can be used to delete the saved locations from an earlier operation, +for example after the user has viewed the HTML file. + \membersection{wxRichTextHTMLHandler::DoSaveFile}\label{wxrichtexthtmlhandlerdosavefile} \func{bool}{DoSaveFile}{\param{wxRichTextBuffer* }{buffer}, \param{wxOutputStream\& }{stream}} Saves the buffer content to the HTML stream. + +\membersection{wxRichTextHTMLHandler::GetFontSizeMapping}\label{wxrichtexthtmlhandlergetfontsizemapping} + +\func{wxArrayInt}{GetFontSizeMapping}{\void} + +Returns the mapping for converting point sizes to HTML font sizes. + +\membersection{wxRichTextHTMLHandler::GetTempDir}\label{wxrichtexthtmlhandlergettempdir} + +\constfunc{const wxString\&}{GetTempDir}{\void} + +Returns the directory used to store temporary image files. + +\membersection{wxRichTextHTMLHandler::GetTemporaryImageLocations}\label{wxrichtexthtmlhandlergettemporaryimagelocations} + +\constfunc{const wxArrayString\&}{GetTemporaryImageLocations}{\void} + +Returns the image locations for the last operation. + +\membersection{wxRichTextHTMLHandler::SetFileCounter}\label{wxrichtexthtmlhandlersetfilecounter} + +\func{void}{SetFileCounter}{\param{int }{counter}} + +Reset the file counter, in case, for example, the same names are required each time + +\membersection{wxRichTextHTMLHandler::SetFontSizeMapping}\label{wxrichtexthtmlhandlersetfontsizemapping} + +\func{void}{SetFontSizeMapping}{\param{const wxArrayInt\& }{fontSizeMapping}} + +Sets the mapping for converting point sizes to HTML font sizes. +There should be 7 elements, one for each HTML font size, each element specifying the maximum point size for that +HTML font size. + +For example: + +\begin{verbatim} + wxArrayInt fontSizeMapping; + fontSizeMapping.Add(7); + fontSizeMapping.Add(9); + fontSizeMapping.Add(11); + fontSizeMapping.Add(12); + fontSizeMapping.Add(14); + fontSizeMapping.Add(22); + fontSizeMapping.Add(100); + + htmlHandler.SetFontSizeMapping(fontSizeMapping); +\end{verbatim} + +\membersection{wxRichTextHTMLHandler::SetTempDir}\label{wxrichtexthtmlhandlersettempdir} + +\func{void}{SetTempDir}{\param{const wxString\& }{tempDir}} + +Sets the directory for storing temporary files. If empty, the system +temporary directory will be used. + +\membersection{wxRichTextHTMLHandler::SetTemporaryImageLocations}\label{wxrichtexthtmlhandlersettemporaryimagelocations} + +\func{void}{SetTemporaryImageLocations}{\param{const wxArrayString\& }{locations}} + +Sets the list of image locations generated by the last operation. +