/**
@class wxRichTextHTMLHandler
- @headerfile richtexthtml.h wx/richtext/richtexthtml.h
Handles HTML output (only) for wxRichTextCtrl content.
wxRichTextCtrl::SaveFile.
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
+ 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
- wxRichTextHTMLHandler::DeleteTemporaryImages before
- the next load operation, or you must store the image
- locations and delete them yourself when appropriate. You can call
- wxRichTextHTMLHandler::GetTemporaryImageLocations to
+ @c wxRICHTEXT_HANDLER_SAVE_IMAGES_TO_MEMORY or
+ @c wxRICHTEXT_HANDLER_SAVE_IMAGES_TO_FILES.
+
+ In this case, you must either call wxRichTextHTMLHandler::DeleteTemporaryImages
+ before the next load operation, or you must store the image locations and
+ delete them yourself when appropriate.
+
+ You can call wxRichTextHTMLHandler::GetTemporaryImageLocations to
get the array of temporary image names.
+
+ @section richtexthtmlhandler_flags 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:
+
+ - wxRICHTEXT_HANDLER_SAVE_IMAGES_TO_MEMORY
+ Images are saved to the memory filesystem: suitable for showing wxHTML windows.
+ - wxRICHTEXT_HANDLER_SAVE_IMAGES_TO_FILES
+ Images are saved to temporary files: suitable for showing in wxHTML windows.
+ - wxRICHTEXT_HANDLER_SAVE_IMAGES_TO_BASE64
+ Images are written with the HTML files in Base 64 format: suitable for showing
+ in web browsers.
+ - 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.
+ - wxRICHTEXT_HANDLER_USE_CSS
+ Use CSS where possible, otherwise use workarounds that will show in wxHtmlWindow.
+
@library{wxrichtext}
@category{richtext}
*/
{
public:
/**
- , wxString&@e ext = wxT("html"), @b int@e type = wxRICHTEXT_TYPE_HTML)
Constructor.
*/
- wxRichTextHTMLHandler() const;
+ wxRichTextHTMLHandler(const wxString& name = "HTML",
+ const wxString& ext = "html",
+ int type = wxRICHTEXT_TYPE_HTML);
/**
Clears the image locations generated by the last operation.
*/
void ClearTemporaryImageLocations();
- //@{
/**
- 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.
+ Deletes the in-memory or temporary files generated by the last operation.
*/
bool DeleteTemporaryImages();
- bool DeleteTemporaryImages(int flags,
- const wxArrayString& imageLocations);
- //@}
/**
- Saves the buffer content to the HTML stream.
+ 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.
*/
- bool DoSaveFile(wxRichTextBuffer* buffer, wxOutputStream& stream);
+ static bool DeleteTemporaryImages(int flags,
+ const wxArrayString& imageLocations);
/**
Returns the mapping for converting point sizes to HTML font sizes.
*/
- wxArrayInt GetFontSizeMapping();
+ wxArrayInt GetFontSizeMapping() const;
/**
Returns the directory used to store temporary image files.
*/
- const wxString GetTempDir() const;
+ const wxString& GetTempDir() const;
/**
Returns the image locations for the last operation.
*/
- const wxArrayString GetTemporaryImageLocations() const;
+ const wxArrayString& GetTemporaryImageLocations() const;
/**
Reset the file counter, in case, for example, the same names are required each
- time
+ time.
*/
- void SetFileCounter(int counter);
+ static void SetFileCounter(int counter);
/**
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.
+ specifying the maximum point size for that HTML font size.
For example:
+ @code
+ 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);
+ @endcode
*/
void SetFontSizeMapping(const wxArrayInt& fontSizeMapping);
/**
- Sets the directory for storing temporary files. If empty, the system
- temporary directory will be used.
+ Sets the directory for storing temporary files.
+ If empty, the system temporary directory will be used.
*/
void SetTempDir(const wxString& tempDir);
Sets the list of image locations generated by the last operation.
*/
void SetTemporaryImageLocations(const wxArrayString& locations);
+
+protected:
+ /**
+ Saves the buffer content to the HTML stream.
+ */
+ virtual bool DoSaveFile(wxRichTextBuffer* buffer, wxOutputStream& stream);
};
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