interface/wx/html/htmltag.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        html/htmltag.h
   3 // Purpose:     interface of wxHtmlTag
   4 // Author:      wxWidgets team
   5 // RCS-ID:      $Id$
   6 // Licence:     wxWindows license
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9 /**
  10     @class wxHtmlTag
  11
  12     This class represents a single HTML tag.
  13     It is used by @ref overview_handlers "tag handlers".
  14
  15     @library{wxhtml}
  16     @category{FIXME}
  17 */
  18 class wxHtmlTag
  19 {
  20 public:
  21     /**
  22         Constructor. You will probably never have to construct a wxHtmlTag object
  23         yourself. Feel free to ignore the constructor parameters.
  24         Have a look at src/html/htmlpars.cpp if you're interested in creating it.
  25     */
  26     wxHtmlTag(wxHtmlTag* parent, const wxString& source, int pos,
  27               int end_pos, wxHtmlTagsCache* cache,
  28               wxHtmlEntitiesParser* entParser);
  29
  30     /**
  31         Returns a string containing all parameters.
  32         Example : tag contains @c FONT SIZE=+2 COLOR="#000000". Call to
  33         tag.GetAllParams() would return @c SIZE=+2 COLOR="#000000".
  34     */
  35     const wxString GetAllParams() const;
  36
  37     /**
  38         Returns beginning position of the text @e between this tag and paired
  39         ending tag.
  40         See explanation (returned position is marked with '|'):
  41         @deprecated @todo provide deprecation description
  42     */
  43     int GetBeginPos() const;
  44
  45     /**
  46         Returns ending position of the text @e between this tag and paired
  47         ending tag.
  48         See explanation (returned position is marked with '|'):
  49         @deprecated @todo provide deprecation description
  50     */
  51     int GetEndPos1() const;
  52
  53     /**
  54         Returns ending position 2 of the text @e between this tag and paired
  55         ending tag.
  56         See explanation (returned position is marked with '|'):
  57         @deprecated @todo provide deprecation description
  58     */
  59     int GetEndPos2() const;
  60
  61     /**
  62         Returns tag's name. The name is always in uppercase and it doesn't contain
  63         " or '/' characters. (So the name of @c FONT SIZE=+2 tag is "FONT"
  64         and name of @c /table is "TABLE")
  65     */
  66     wxString GetName() const;
  67
  68     /**
  69         Returns the value of the parameter. You should check whether the
  70         parameter exists or not (use wxHtmlTag::HasParam) first.
  71
  72         @param par
  73             The parameter's name.
  74         @param with_quotes
  75             @true if you want to get quotes as well. See example.
  76     */
  77     wxString GetParam(const wxString& par, bool with_quotes = false) const;
  78
  79     /**
  80         Interprets tag parameter @a par as colour specification and saves its value
  81         into wxColour variable pointed by @e clr.
  82         Returns @true on success and @false if @a par is not colour specification or
  83         if the tag has no such parameter.
  84     */
  85     bool GetParamAsColour(const wxString& par, wxColour* clr) const;
  86
  87     /**
  88         Interprets tag parameter @a par as an integer and saves its value
  89         into int variable pointed by @e value.
  90         Returns @true on success and @false if @a par is not an integer or
  91         if the tag has no such parameter.
  92     */
  93     bool GetParamAsInt(const wxString& par, int* value) const;
  94
  95     /**
  96         Returns @true if this tag is paired with ending tag, @false otherwise.
  97         See the example of HTML document:
  98
  99         In this example tags HTML and BODY have ending tags, first P and BR
 100         doesn't have ending tag while the second P has. The third P tag (which
 101         is ending itself) of course doesn't have ending tag.
 102     */
 103     bool HasEnding() const;
 104
 105     /**
 106         Returns @true if the tag has a parameter of the given name.
 107         Example : @c FONT SIZE=+2 COLOR="\#FF00FF" has two parameters named
 108         "SIZE" and "COLOR".
 109
 110         @param par
 111             the parameter you're looking for.
 112     */
 113     bool HasParam(const wxString& par) const;
 114
 115     /**
 116         This method scans the given parameter. Usage is exactly the same as sscanf's
 117         usage except that you don't pass a string but a parameter name as the first
 118         argument
 119         and you can only retrieve one value (i.e. you can use only one "%" element
 120         in @e format).
 121
 122         @param par
 123             The name of the tag you want to query
 124         @param format
 125             scanf()-like format string.
 126         @param value
 127             pointer to a variable to store the value in
 128     */
 129     wxString ScanParam(const wxString& par, const wxChar* format,
 130                        void* value) const;
 131 };
 132