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::AppendToPage}\label{wxhtmlwindowappendtopage}
  57
  58 \func{bool}{AppendToPage}{\param{const wxString\& }{source}}
  59
  60 Appends HTML fragment to currently displayed text and refreshes the window.
  61
  62 \wxheading{Parameters}
  63
  64 \docparam{source}{HTML code fragment}
  65
  66 \wxheading{Return value}
  67
  68 FALSE if an error occurred, TRUE otherwise.
  69
  70 \membersection{wxHtmlWindow::GetInternalRepresentation}\label{wxhtmlwindowgetinternalrepresentation}
  71
  72 \constfunc{wxHtmlContainerCell*}{GetInternalRepresentation}{\void}
  73
  74 Returns pointer to the top-level container.
  75
  76 See also: \helpref{Cells Overview}{cells},
  77 \helpref{Printing Overview}{printing}
  78
  79 \membersection{wxHtmlWindow::GetOpenedAnchor}\label{wxhtmlwindowgetopenedanchor}
  80
  81 \func{wxString}{GetOpenedAnchor}{\void}
  82
  83 Returns anchor within currently opened page
  84 (see \helpref{GetOpenedPage}{wxhtmlwindowgetopenedpage}).
  85 If no page is opened or if the displayed page wasn't
  86 produced by call to LoadPage, empty string is returned.
  87
  88
  89 \membersection{wxHtmlWindow::GetOpenedPage}\label{wxhtmlwindowgetopenedpage}
  90
  91 \func{wxString}{GetOpenedPage}{\void}
  92
  93 Returns full location of the opened page. If no page is opened or if the displayed page wasn't
  94 produced by call to LoadPage, empty string is returned.
  95
  96 \membersection{wxHtmlWindow::GetOpenedPageTitle}\label{wxhtmlwindowgetopenedpagetitle}
  97
  98 \func{wxString}{GetOpenedPageTitle}{\void}
  99
 100 Returns title of the opened page or wxEmptyString if current page does not contain {\tt <TITLE>} tag.
 101
 102 \membersection{wxHtmlWindow::GetRelatedFrame}\label{wxhtmlwindowgetrelatedframe}
 103
 104 \constfunc{wxFrame*}{GetRelatedFrame}{\void}
 105
 106 Returns the related frame.
 107
 108 \membersection{wxHtmlWindow::HistoryBack}\label{wxhtmlwindowhistoryback}
 109
 110 \func{bool}{HistoryBack}{\void}
 111
 112 Moves back to the previous page. (each page displayed using
 113 \helpref{LoadPage}{wxhtmlwindowloadpage} is stored in history list.)
 114
 115 \membersection{wxHtmlWindow::HistoryCanBack}\label{wxhtmlwindowhistorycanback}
 116
 117 \func{bool}{HistoryCanBack}{\void}
 118
 119 Returns true if it is possible to go back in the history (i.e. HistoryBack()
 120 won't fail).
 121
 122 \membersection{wxHtmlWindow::HistoryCanForward}\label{wxhtmlwindowhistorycanforward}
 123
 124 \func{bool}{HistoryCanForward}{\void}
 125
 126 Returns true if it is possible to go forward in the history (i.e. HistoryBack()
 127 won't fail).
 128
 129
 130 \membersection{wxHtmlWindow::HistoryClear}\label{wxhtmlwindowhistoryclear}
 131
 132 \func{void}{HistoryClear}{\void}
 133
 134 Clears history.
 135
 136 \membersection{wxHtmlWindow::HistoryForward}\label{wxhtmlwindowhistoryforward}
 137
 138 \func{bool}{HistoryForward}{\void}
 139
 140 Moves to next page in history.
 141
 142 \membersection{wxHtmlWindow::LoadPage}\label{wxhtmlwindowloadpage}
 143
 144 \func{virtual bool}{LoadPage}{\param{const wxString\& }{location}}
 145
 146 Unlike SetPage this function first loads HTML page from {\it location}
 147 and then displays it. See example:
 148
 149 \begin{verbatim}
 150 htmlwin -> SetPage("help/myproject/index.htm");
 151 \end{verbatim}
 152
 153 \wxheading{Parameters}
 154
 155 \docparam{location}{The address of document. See \helpref{wxFileSystem}{wxfilesystem} for details on address format and behaviour of "opener".}
 156
 157 \wxheading{Return value}
 158
 159 FALSE if an error occurred, TRUE otherwise
 160
 161 \membersection{wxHtmlWindow::OnCellClicked}\label{wxhtmlwindowoncellclicked}
 162
 163 \func{virtual void}{OnCellClicked}{\param{wxHtmlCell }{*cell}, \param{wxCoord }{x}, \param{wxCoord }{y}, \param{const wxMouseEvent\& }{event}}
 164
 165 This method is called when a mouse button is clicked inside wxHtmlWindow.
 166 The default behaviour is to call
 167 \helpref{OnLinkClicked}{wxhtmlwindowonlinkclicked} if the cell contains a
 168 hypertext link.
 169
 170 \wxheading{Parameters}
 171
 172 \docparam{cell}{The cell inside which the mouse was clicked, always a simple
 173 (i.e. non container) cell}
 174
 175 \docparam{x, y}{The logical coordinates of the click point}
 176
 177 \docparam{event}{The mouse event containing other information about the click}
 178
 179 \membersection{wxHtmlWindow::OnCellMouseHover}\label{wxhtmlwindowoncellmousehover}
 180
 181 \func{virtual void}{OnCellMouseHover}{\param{wxHtmlCell }{*cell}, \param{wxCoord }{x}, \param{wxCoord }{y}}
 182
 183 This method is called when a mouse moves over an HTML cell.
 184
 185 \wxheading{Parameters}
 186
 187 \docparam{cell}{The cell inside which the mouse is currently, always a simple
 188 (i.e. non container) cell}
 189
 190 \docparam{x, y}{The logical coordinates of the click point}
 191
 192 \membersection{wxHtmlWindow::OnLinkClicked}\label{wxhtmlwindowonlinkclicked}
 193
 194 \func{virtual void}{OnLinkClicked}{\param{const wxHtmlLinkInfo\& }{link}}
 195
 196 Called when user clicks on hypertext link. Default behaviour is to call
 197 \helpref{LoadPage}{wxhtmlwindowloadpage} and do nothing else.
 198
 199 Also see \helpref{wxHtmlLinkInfo}{wxhtmllinkinfo}.
 200
 201 \membersection{wxHtmlWindow::OnOpeningURL}\label{wxhtmlwindowonopeningurl}
 202
 203 \func{virtual bool}{OnOpeningURL}{\param{const wxString\& }{url}}
 204
 205 Called when an URL is being opened (either when the user clicks on a link or
 206 an image is loaded). If the function returns FALSE, the URL won't be fetched.
 207 Default behaviour is to return TRUE.
 208
 209 Also see \helpref{wxHtmlWinParser::CanOpenURL}{wxhtmlwinparsercanopenurl}.
 210
 211 \membersection{wxHtmlWindow::OnSetTitle}\label{wxhtmlwindowonsettitle}
 212
 213 \func{virtual void}{OnSetTitle}{\param{const wxString\& }{title}}
 214
 215 Called on parsing {\tt <TITLE>} tag.
 216
 217
 218 \membersection{wxHtmlWindow::ReadCustomization}\label{wxhtmlwindowreadcustomization}
 219
 220 \func{virtual void}{ReadCustomization}{\param{wxConfigBase }{*cfg}, \param{wxString }{path = wxEmptyString}}
 221
 222 This reads custom settings from wxConfig. It uses the path 'path'
 223 if given, otherwise it saves info into currently selected path.
 224 The values are stored in sub-path {\tt wxHtmlWindow}
 225
 226 Read values: all things set by SetFonts, SetBorders.
 227
 228 \wxheading{Parameters}
 229
 230 \docparam{cfg}{wxConfig from which you want to read the configuration.}
 231
 232 \docparam{path}{Optional path in config tree. If not given current path is used.}
 233
 234 \membersection{wxHtmlWindow::SetBorders}\label{wxhtmlwindowsetborders}
 235
 236 \func{void}{SetBorders}{\param{int }{b}}
 237
 238 This function sets the space between border of window and HTML contents. See image:
 239
 240 \helponly{\image{}{border.bmp}}
 241
 242 \wxheading{Parameters}
 243
 244 \docparam{b}{indentation from borders in pixels}
 245
 246 \membersection{wxHtmlWindow::SetFonts}\label{wxhtmlwindowsetfonts}
 247
 248 \func{void}{SetFonts}{\param{wxString }{normal\_face}, \param{wxString }{fixed\_face}, \param{const int }{*sizes}}
 249
 250 This function sets font sizes and faces.
 251
 252 \wxheading{Parameters}
 253
 254 \docparam{normal\_face}{This is face name for normal (i.e. non-fixed) font.
 255 It can be either empty string (then the default face is choosen) or
 256 platform-specific face name. Examples are "helvetica" under Unix or
 257 "Times New Roman" under Windows.}
 258
 259 \docparam{fixed\_face}{The same thing for fixed face ( <TT>..</TT> )}
 260
 261 \docparam{sizes}{This is an array of 7 items of {\it int} type.
 262 The values represent size of font with HTML size from -2 to +4
 263 ( <FONT SIZE=-2> to <FONT SIZE=+4> )}
 264
 265 \wxheading{Defaults}
 266
 267 Under wxGTK:
 268
 269 \begin{verbatim}
 270     SetFonts("", "", {10, 12, 14, 16, 19, 24, 32});
 271 \end{verbatim}
 272
 273 Under Windows:
 274
 275 \begin{verbatim}
 276     SetFonts("", "", {7, 8, 10, 12, 16, 22, 30});
 277 \end{verbatim}
 278
 279 Athough it seems different the fact is that the fonts are of approximately
 280 same size under both platforms (due to wxMSW / wxGTK inconsistency)
 281
 282 \membersection{wxHtmlWindow::SetPage}\label{wxhtmlwindowsetpage}
 283
 284 \func{bool}{SetPage}{\param{const wxString\& }{source}}
 285
 286 Sets HTML page and display it. This won't {\bf load} the page!!
 287 It will display the {\it source}. See example:
 288
 289 \begin{verbatim}
 290 htmlwin -> SetPage("<html><body>Hello, world!</body></html>");
 291 \end{verbatim}
 292
 293 If you want to load a document from some location use
 294 \helpref{LoadPage}{wxhtmlwindowloadpage} instead.
 295
 296 \wxheading{Parameters}
 297
 298 \docparam{source}{The HTML document source to be displayed.}
 299
 300 \wxheading{Return value}
 301
 302 FALSE if an error occurred, TRUE otherwise.
 303
 304 \membersection{wxHtmlWindow::SetRelatedFrame}\label{wxhtmlwindowsetrelatedframe}
 305
 306 \func{void}{SetRelatedFrame}{\param{wxFrame* }{frame}, \param{const wxString\& }{format}}
 307
 308 Sets the frame in which page title will be displayed. {\it format} is format of
 309 frame title, e.g. "HtmlHelp : \%s". It must contain exactly one \%s. This
 310 \%s is substituted with HTML page title.
 311
 312 \membersection{wxHtmlWindow::SetRelatedStatusBar}\label{wxhtmlwindowsetrelatedstatusbar}
 313
 314 \func{void}{SetRelatedStatusBar}{\param{int }{bar}}
 315
 316 {\bf After} calling \helpref{SetRelatedFrame}{wxhtmlwindowsetrelatedframe},
 317 this sets statusbar slot where messages will be displayed.
 318 (Default is -1 = no messages.)
 319
 320 \wxheading{Parameters}
 321
 322 \docparam{bar}{statusbar slot number (0..n)}
 323
 324
 325 \membersection{wxHtmlWindow::WriteCustomization}\label{wxhtmlwindowwritecustomization}
 326
 327 \func{virtual void}{WriteCustomization}{\param{wxConfigBase }{*cfg}, \param{wxString }{path = wxEmptyString}}
 328
 329 Saves custom settings into wxConfig. It uses the path 'path'
 330 if given, otherwise it saves info into currently selected path.
 331 Regardless of whether the path is given or not, the function creates sub-path
 332 {\tt wxHtmlWindow}.
 333
 334 Saved values: all things set by SetFonts, SetBorders.
 335
 336 \wxheading{Parameters}
 337
 338 \docparam{cfg}{wxConfig to which you want to save the configuration.}
 339
 340 \docparam{path}{Optional path in config tree. If not given, the current path is used.}
 341