docs/latex/wx/htwindow.tex

   1 %
   2 % automatically generated by HelpGen from
   3 % htmlwindow.tex at 14/Mar/99 20:13:37
   4 %
   5
   6 \section{\class{wxHtmlWindow}}\label{wxhtmlwindow}
   7
   8 wxHtmlWindow is probably the only class you will directly use
   9 unless you want to do something special (like adding new tag
  10 handlers or MIME filters).
  11
  12 The purpose of this class is to display HTML pages (either local
  13 file or downloaded via HTTP protocol) in a window. The width
  14 of the window is constant - given in the constructor - and virtual height
  15 is changed dynamically depending on page size.
  16 Once the window is created you can set its content by calling
  17 \helpref{SetPage(text)}{wxhtmlwindowsetpage} or
  18 \helpref{LoadPage(filename)}{wxhtmlwindowloadpage}.
  19
  20 \wxheading{Derived from}
  21
  22 \helpref{wxScrolledWindow}{wxscrolledwindow}
  23
  24 \wxheading{Include files}
  25
  26 <wx/html/htmlwin.h>
  27
  28 \membersection{wxHtmlWindow::wxHtmlWindow}\label{wxhtmlwindowwxhtmlwindow}
  29
  30 \func{}{wxHtmlWindow}{\void}
  31
  32 Default constructor.
  33
  34 \func{}{wxHtmlWindow}{\param{wxWindow }{*parent}, \param{wxWindowID }{id = -1}, \param{const wxPoint\& }{pos = wxDefaultPosition}, \param{const wxSize\& }{size = wxDefaultSize}, \param{long }{style = wxHW\_SCROLLBAR\_AUTO}, \param{const wxString\& }{name = "htmlWindow"}}
  35
  36 Constructor. The parameters are the same as for the \helpref{wxScrolledWindow}{wxscrolledwindow} constructor.
  37
  38 \wxheading{Parameters}
  39
  40 \docparam{style}{wxHW\_SCROLLBAR\_NEVER,  or wxHW\_SCROLLBAR\_AUTO.
  41 Affects the appearance of vertical scrollbar in the window.}
  42
  43 \membersection{wxHtmlWindow::AddFilter}\label{wxhtmlwindowaddfilter}
  44
  45 \func{static void}{AddFilter}{\param{wxHtmlFilter }{*filter}}
  46
  47 Adds \helpref{input filter}{filters} to the static list of available
  48 filters. These filters are present by default:
  49
  50 \begin{itemize}\itemsep=0pt
  51 \item {\tt text/html} MIME type
  52 \item {\tt image/*} MIME types
  53 \item Plain Text filter (this filter is used if no other filter matches)
  54 \end{itemize}
  55
  56 \membersection{wxHtmlWindow::GetInternalRepresentation}\label{wxhtmlwindowgetinternalrepresentation}
  57
  58 \constfunc{wxHtmlContainerCell*}{GetInternalRepresentation}{\void}
  59
  60 Returns pointer to the top-level container.
  61
  62 See also: \helpref{Cells Overview}{cells},
  63 \helpref{Printing Overview}{printing}
  64
  65 \membersection{wxHtmlWindow::GetOpenedAnchor}\label{wxhtmlwindowgetopenedanchor}
  66
  67 \func{wxString}{GetOpenedAnchor}{\void}
  68
  69 Returns anchor within currently opened page
  70 (see \helpref{GetOpenedPage}{wxhtmlwindowgetopenedpage}).
  71 If no page is opened or if the displayed page wasn't
  72 produced by call to LoadPage, empty string is returned.
  73
  74
  75 \membersection{wxHtmlWindow::GetOpenedPage}\label{wxhtmlwindowgetopenedpage}
  76
  77 \func{wxString}{GetOpenedPage}{\void}
  78
  79 Returns full location of the opened page. If no page is opened or if the displayed page wasn't
  80 produced by call to LoadPage, empty string is returned.
  81
  82 \membersection{wxHtmlWindow::GetOpenedPageTitle}\label{wxhtmlwindowgetopenedpagetitle}
  83
  84 \func{wxString}{GetOpenedPageTitle}{\void}
  85
  86 Returns title of the opened page or wxEmptyString if current page does not contain {\tt <TITLE>} tag.
  87
  88 \membersection{wxHtmlWindow::GetRelatedFrame}\label{wxhtmlwindowgetrelatedframe}
  89
  90 \constfunc{wxFrame*}{GetRelatedFrame}{\void}
  91
  92 Returns the related frame.
  93
  94 \membersection{wxHtmlWindow::HistoryBack}\label{wxhtmlwindowhistoryback}
  95
  96 \func{bool}{HistoryBack}{\void}
  97
  98 Moves back to the previous page. (each page displayed using
  99 \helpref{LoadPage}{wxhtmlwindowloadpage} is stored in history list.)
 100
 101 \membersection{wxHtmlWindow::HistoryCanBack}\label{wxhtmlwindowhistorycanback}
 102
 103 \func{bool}{HistoryCanBack}{\void}
 104
 105 Returns true if it is possible to go back in the history (i.e. HistoryBack()
 106 won't fail).
 107
 108 \membersection{wxHtmlWindow::HistoryCanForward}\label{wxhtmlwindowhistorycanforward}
 109
 110 \func{bool}{HistoryCanForward}{\void}
 111
 112 Returns true if it is possible to go forward in the history (i.e. HistoryBack()
 113 won't fail).
 114
 115
 116 \membersection{wxHtmlWindow::HistoryClear}\label{wxhtmlwindowhistoryclear}
 117
 118 \func{void}{HistoryClear}{\void}
 119
 120 Clears history.
 121
 122 \membersection{wxHtmlWindow::HistoryForward}\label{wxhtmlwindowhistoryforward}
 123
 124 \func{bool}{HistoryForward}{\void}
 125
 126 Moves to next page in history.
 127
 128 \membersection{wxHtmlWindow::LoadPage}\label{wxhtmlwindowloadpage}
 129
 130 \func{virtual bool}{LoadPage}{\param{const wxString\& }{location}}
 131
 132 Unlike SetPage this function first loads HTML page from {\it location}
 133 and then displays it. See example:
 134
 135 \begin{verbatim}
 136 htmlwin -> SetPage("help/myproject/index.htm");
 137 \end{verbatim}
 138
 139 \wxheading{Parameters}
 140
 141 \docparam{location}{The address of document. See \helpref{wxFileSystem}{wxfilesystem} for details on address format and behaviour of "opener".}
 142
 143 \wxheading{Return value}
 144
 145 FALSE if an error occurred, TRUE otherwise
 146
 147 \membersection{wxHtmlWindow::OnLinkClicked}\label{wxhtmlwindowonlinkclicked}
 148
 149 \func{virtual void}{OnLinkClicked}{\param{const wxHtmlLinkInfo\& }{link}}
 150
 151 Called when user clicks on hypertext link. Default behaviour is to call
 152 \helpref{LoadPage}{wxhtmlwindowloadpage} and do nothing else.
 153
 154 Also see \helpref{wxHtmlLinkInfo}{wxhtmllinkinfo}.
 155
 156
 157 \membersection{wxHtmlWindow::OnSetTitle}\label{wxhtmlwindowonsettitle}
 158
 159 \func{virtual void}{OnSetTitle}{\param{const wxString\& }{title}}
 160
 161 Called on parsing {\tt <TITLE>} tag.
 162
 163
 164 \membersection{wxHtmlWindow::ReadCustomization}\label{wxhtmlwindowreadcustomization}
 165
 166 \func{virtual void}{ReadCustomization}{\param{wxConfigBase }{*cfg}, \param{wxString }{path = wxEmptyString}}
 167
 168 This reads custom settings from wxConfig. It uses the path 'path'
 169 if given, otherwise it saves info into currently selected path.
 170 The values are stored in sub-path {\tt wxHtmlWindow}
 171
 172 Read values: all things set by SetFonts, SetBorders.
 173
 174 \wxheading{Parameters}
 175
 176 \docparam{cfg}{wxConfig from which you want to read the configuration.}
 177
 178 \docparam{path}{Optional path in config tree. If not given current path is used.}
 179
 180 \membersection{wxHtmlWindow::SetBorders}\label{wxhtmlwindowsetborders}
 181
 182 \func{void}{SetBorders}{\param{int }{b}}
 183
 184 This function sets the space between border of window and HTML contents. See image:
 185
 186 \helponly{\image{}{border.bmp}}
 187
 188 \wxheading{Parameters}
 189
 190 \docparam{b}{indentation from borders in pixels}
 191
 192 \membersection{wxHtmlWindow::SetFonts}\label{wxhtmlwindowsetfonts}
 193
 194 \func{void}{SetFonts}{\param{wxString }{normal\_face}, \param{wxString }{fixed\_face}, \param{const int }{*sizes}}
 195
 196 This function sets font sizes and faces.
 197
 198 \wxheading{Parameters}
 199
 200 \docparam{normal\_face}{This is face name for normal (i.e. non-fixed) font.
 201 It can be either empty string (then the default face is choosen) or
 202 platform-specific face name. Examples are "helvetica" under Unix or
 203 "Times New Roman" under Windows.}
 204
 205 \docparam{fixed\_face}{The same thing for fixed face ( <TT>..</TT> )}
 206
 207 \docparam{sizes}{This is an array of 7 items of {\it int} type.
 208 The values represent size of font with HTML size from -2 to +4
 209 ( <FONT SIZE=-2> to <FONT SIZE=+4> )}
 210
 211 \wxheading{Defaults}
 212
 213 Under wxGTK:
 214
 215 \begin{verbatim}
 216     SetFonts("", "", {10, 12, 14, 16, 19, 24, 32});
 217 \end{verbatim}
 218
 219 Under Windows:
 220
 221 \begin{verbatim}
 222     SetFonts("", "", {7, 8, 10, 12, 16, 22, 30});
 223 \end{verbatim}
 224
 225 Athough it seems different the fact is that the fonts are of approximately
 226 same size under both platforms (due to wxMSW / wxGTK inconsistency)
 227
 228 \membersection{wxHtmlWindow::SetPage}\label{wxhtmlwindowsetpage}
 229
 230 \func{bool}{SetPage}{\param{const wxString\& }{source}}
 231
 232 Sets HTML page and display it. This won't {\bf load} the page!!
 233 It will display the {\it source}. See example:
 234
 235 \begin{verbatim}
 236 htmlwin -> SetPage("<html><body>Hello, world!</body></html>");
 237 \end{verbatim}
 238
 239 If you want to load a document from some location use
 240 \helpref{LoadPage}{wxhtmlwindowloadpage} instead.
 241
 242 \wxheading{Parameters}
 243
 244 \docparam{source}{The HTML document source to be displayed.}
 245
 246 \wxheading{Return value}
 247
 248 FALSE if an error occurred, TRUE otherwise.
 249
 250 \membersection{wxHtmlWindow::SetRelatedFrame}\label{wxhtmlwindowsetrelatedframe}
 251
 252 \func{void}{SetRelatedFrame}{\param{wxFrame* }{frame}, \param{const wxString\& }{format}}
 253
 254 Sets the frame in which page title will be displayed. {\it format} is format of
 255 frame title, e.g. "HtmlHelp : \%s". It must contain exactly one \%s. This
 256 \%s is substituted with HTML page title.
 257
 258 \membersection{wxHtmlWindow::SetRelatedStatusBar}\label{wxhtmlwindowsetrelatedstatusbar}
 259
 260 \func{void}{SetRelatedStatusBar}{\param{int }{bar}}
 261
 262 {\bf After} calling \helpref{SetRelatedFrame}{wxhtmlwindowsetrelatedframe},
 263 this sets statusbar slot where messages will be displayed.
 264 (Default is -1 = no messages.)
 265
 266 \wxheading{Parameters}
 267
 268 \docparam{bar}{statusbar slot number (0..n)}
 269
 270
 271 \membersection{wxHtmlWindow::WriteCustomization}\label{wxhtmlwindowwritecustomization}
 272
 273 \func{virtual void}{WriteCustomization}{\param{wxConfigBase }{*cfg}, \param{wxString }{path = wxEmptyString}}
 274
 275 Saves custom settings into wxConfig. It uses the path 'path'
 276 if given, otherwise it saves info into currently selected path.
 277 Regardless of whether the path is given or not, the function creates sub-path
 278 {\tt wxHtmlWindow}.
 279
 280 Saved values: all things set by SetFonts, SetBorders.
 281
 282 \wxheading{Parameters}
 283
 284 \docparam{cfg}{wxConfig to which you want to save the configuration.}
 285
 286 \docparam{path}{Optional path in config tree. If not given, the current path is used.}
 287