docs/latex/wx/httaghnd.tex

   1 %
   2 % automatically generated by HelpGen from
   3 % htmltaghandler.tex at 18/Mar/99 19:20:29
   4 %
   5
   6 \section{\class{wxHtmlTagHandler}}\label{wxhtmltaghandler}
   7
   8 \wxheading{Derived from}
   9
  10 \helpref{wxObject}{wxobject}
  11
  12 \wxheading{Include files}
  13
  14 <wx/html/htmlpars.h>
  15
  16 \wxheading{See Also}
  17
  18 \helpref{Overview}{handlers},
  19 \helpref{wxHtmlTag}{wxhtmltag}
  20
  21 \latexignore{\rtfignore{\wxheading{Members}}}
  22
  23 \membersection{wxHtmlTagHandler::m\_Parser}\label{wxhtmltaghandlermparser}
  24
  25 {\bf wxHtmlParser* m\_Parser}
  26
  27 This attribute is used to access parent parser. It is protected so that
  28 it can't be accessed by user but can be accessed from derived classes.
  29
  30 \membersection{wxHtmlTagHandler::wxHtmlTagHandler}\label{wxhtmltaghandlerwxhtmltaghandler}
  31
  32 \func{}{wxHtmlTagHandler}{\void}
  33
  34 Constructor.
  35
  36 \membersection{wxHtmlTagHandler::GetSupportedTags}\label{wxhtmltaghandlergetsupportedtags}
  37
  38 \func{virtual wxString}{GetSupportedTags}{\void}
  39
  40 Returns list of supported tags. The list is in uppercase and tags
  41 are delimited by ','. Example : {\tt "I,B,FONT,P" }
  42
  43 \membersection{wxHtmlTagHandler::HandleTag}\label{wxhtmltaghandlerhandletag}
  44
  45 \func{virtual bool}{HandleTag}{\param{const wxHtmlTag\& }{tag}}
  46
  47 This is the core method of each handler. It is called each time
  48 one of supported tags is detected. {\it tag} contains all neccessary
  49 info (see \helpref{wxHtmlTag}{wxhtmltag} for details).
  50
  51 \wxheading{Return value}
  52
  53 TRUE if \helpref{ParseInner}{wxhtmltaghandlerparseinner} was called,
  54 FALSE otherwise.
  55
  56 \wxheading{Example}
  57
  58 \begin{verbatim}
  59 bool MyHandler::HandleTag(const wxHtmlTag& tag)
  60 {
  61     ...
  62     // change state of parser (e.g. set bold face)
  63     ParseInner(tag);
  64     ...
  65     // restore original state of parser
  66 }
  67 \end{verbatim}
  68
  69 You shouldn't call ParseInner if the tag is not paired with ending one.
  70
  71 \membersection{wxHtmlTagHandler::ParseInner}\label{wxhtmltaghandlerparseinner}
  72
  73 \func{void}{ParseInner}{\param{const wxHtmlTag\& }{tag}}
  74
  75 This method calls parser's \helpref{DoParsing}{wxhtmlparserdoparsing} method
  76 for the string between this tag and paired ending tag:
  77
  78 \begin{verbatim}
  79 ...<A HREF="x.htm">Hello, world!</A>...
  80 \end{verbatim}
  81
  82 In this example, a call to ParseInner (with {\it tag} pointing to A tag)
  83 will parse 'Hello, world!'.
  84
  85 \membersection{wxHtmlTagHandler::SetParser}\label{wxhtmltaghandlersetparser}
  86
  87 \func{virtual void}{SetParser}{\param{wxHtmlParser }{*parser}}
  88
  89 Assigns {\it parser} to this handler. Each {\bf instance} of handler
  90 is guaranteed to be called only from the parser.
  91