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Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: richtext/richtexthtml.h
	3	// Purpose: interface of wxRichTextHTMLHandler
	4	// Author: wxWidgets team
	5	// RCS-ID: $Id$
	6	// Licence: wxWindows license
	7	/////////////////////////////////////////////////////////////////////////////
	8
	9	/**
	10	@class wxRichTextHTMLHandler
	11
	12	Handles HTML output (only) for wxRichTextCtrl content.
	13
	14	The most flexible way to use this class is to create a temporary object and call
	15	its functions directly, rather than use wxRichTextBuffer::SaveFile or
	16	wxRichTextCtrl::SaveFile.
	17
	18	Image handling requires a little extra work from the application, to choose an
	19	appropriate image format for the target HTML viewer and to clean up the
	20	temporary images
	21	later. If you are planning to load the HTML into a standard web browser, you can
	22	specify the handler flag wxRICHTEXT_HANDLER_SAVE_IMAGES_TO_BASE64 (the default)
	23	and no extra work is required: the images will be written with the HTML.
	24
	25	However, if you want wxHTML compatibility, you will need to use
	26	wxRICHTEXT_HANDLER_SAVE_IMAGES_TO_MEMORY
	27	or wxRICHTEXT_HANDLER_SAVE_IMAGES_TO_FILES. In this case, you must either call
	28	wxRichTextHTMLHandler::DeleteTemporaryImages before
	29	the next load operation, or you must store the image
	30	locations and delete them yourself when appropriate. You can call
	31	wxRichTextHTMLHandler::GetTemporaryImageLocations to
	32	get the array of temporary image names.
	33
	34	@library{wxrichtext}
	35	@category{richtext}
	36	*/
	37	class wxRichTextHTMLHandler : public wxRichTextFileHandler
	38	{
	39	public:
	40	/**
	41	, wxString&@e ext = wxT("html"), @b int@e type = wxRICHTEXT_TYPE_HTML)
	42	Constructor.
	43	*/
	44	wxRichTextHTMLHandler() const;
	45
	46	/**
	47	Clears the image locations generated by the last operation.
	48	*/
	49	void ClearTemporaryImageLocations();
	50
	51	//@{
	52	/**
	53	Delete the in-memory or temporary files generated by the last operation. This
	54	is a static
	55	function that can be used to delete the saved locations from an earlier
	56	operation,
	57	for example after the user has viewed the HTML file.
	58	*/
	59	bool DeleteTemporaryImages();
	60	bool DeleteTemporaryImages(int flags,
	61	const wxArrayString& imageLocations);
	62	//@}
	63
	64	/**
	65	Saves the buffer content to the HTML stream.
	66	*/
	67	bool DoSaveFile(wxRichTextBuffer* buffer, wxOutputStream& stream);
	68
	69	/**
	70	Returns the mapping for converting point sizes to HTML font sizes.
	71	*/
	72	wxArrayInt GetFontSizeMapping();
	73
	74	/**
	75	Returns the directory used to store temporary image files.
	76	*/
	77	const wxString GetTempDir() const;
	78
	79	/**
	80	Returns the image locations for the last operation.
	81	*/
	82	const wxArrayString GetTemporaryImageLocations() const;
	83
	84	/**
	85	Reset the file counter, in case, for example, the same names are required each
	86	time
	87	*/
	88	void SetFileCounter(int counter);
	89
	90	/**
	91	Sets the mapping for converting point sizes to HTML font sizes.
	92	There should be 7 elements, one for each HTML font size, each element
	93	specifying the maximum point size for that
	94	HTML font size.
	95	For example:
	96	*/
	97	void SetFontSizeMapping(const wxArrayInt& fontSizeMapping);
	98
	99	/**
	100	Sets the directory for storing temporary files. If empty, the system
	101	temporary directory will be used.
	102	*/
	103	void SetTempDir(const wxString& tempDir);
	104
	105	/**
	106	Sets the list of image locations generated by the last operation.
	107	*/
	108	void SetTemporaryImageLocations(const wxArrayString& locations);
	109	};
	110