docs/latex/wx/hthelpct.tex

   1 %
   2 % automatically generated by HelpGen from
   3 % htmlhelp.h at 02/May/99 19:58:53
   4 %
   5
   6 \section{\class{wxHtmlHelpController}}\label{wxhtmlhelpcontroller}
   7
   8 {\bf WARNING!} Although this class has an API compatible with other wxWidgets
   9 help controllers as documented by \helpref{wxHelpController}{wxhelpcontroller}, it
  10 is recommended that you use the enhanced capabilities of wxHtmlHelpController's API.
  11
  12 This help controller provides an easy way of displaying HTML help in your
  13 application (see {\it test} sample). The help system is based on {\bf books}
  14 (see \helpref{AddBook}{wxhtmlhelpcontrolleraddbook}). A book is a logical
  15 section of documentation (for example "User's Guide" or "Programmer's Guide" or
  16 "C++ Reference" or "wxWidgets Reference"). The help controller can handle as
  17 many books as you want.
  18
  19 wxHTML uses Microsoft's HTML Help Workshop project files (.hhp, .hhk, .hhc) as its
  20 native format. The file format is described \helpref{here}{helpformat}.
  21 Have a look at docs/html/ directory where sample project files are stored.
  22
  23 You can use Tex2RTF to produce these files when generating HTML, if you set {\bf htmlWorkshopFiles} to {\bf true} in
  24 your tex2rtf.ini file.
  25
  26 \wxheading{Note}
  27
  28 It is strongly recommended to use preprocessed {\bf .hhp.cached} version of
  29 projects. It can be either created on-the-fly (see
  30 \helpref{SetTempDir}{wxhtmlhelpcontrollersettempdir}) or you can use
  31 {\bf hhp2cached} utility from {\it utils/hhp2cached} to create it and
  32 distribute the cached version together with helpfiles. See {\it samples/html/help}
  33 sample for demonstration of its use.
  34
  35 \wxheading{See also}
  36
  37 \helpref{Information about wxBestHelpController}{wxhelpcontroller}
  38
  39 \wxheading{Derived from}
  40
  41 wxHelpControllerBase
  42
  43 \wxheading{Include files}
  44
  45 <wx/html/helpctrl.h>
  46
  47 \latexignore{\rtfignore{\wxheading{Members}}}
  48
  49 \membersection{wxHtmlHelpController::wxHtmlHelpController}\label{wxhtmlhelpcontrollerwxhtmlhelpcontroller}
  50
  51 \func{}{wxHtmlHelpController}{\param{int }{style = wxHF\_DEFAULT\_STYLE}}
  52
  53 Constructor.
  54
  55 \wxheading{Parameters}
  56
  57 {\it style} is combination of these flags:
  58
  59 \begin{twocollist}\itemsep=0pt
  60 \twocolitem{\windowstyle{wxHF\_TOOLBAR}}{Help frame has toolbar.}
  61 \twocolitem{\windowstyle{wxHF\_FLAT\_TOOLBAR}}{Help frame has toolbar with flat buttons (aka coolbar).}
  62 \twocolitem{\windowstyle{wxHF\_CONTENTS}}{Help frame has contents panel.}
  63 \twocolitem{\windowstyle{wxHF\_INDEX}}{Help frame has index panel.}
  64 \twocolitem{\windowstyle{wxHF\_SEARCH}}{Help frame has search panel.}
  65 \twocolitem{\windowstyle{wxHF\_BOOKMARKS}}{Help frame has bookmarks controls.}
  66 \twocolitem{\windowstyle{wxHF\_OPEN\_FILES}}{Allow user to open arbitrary HTML document.}
  67 \twocolitem{\windowstyle{wxHF\_PRINT}}{Toolbar contains "print" button.}
  68 \twocolitem{\windowstyle{wxHF\_MERGE\_BOOKS}}{Contents pane does not show
  69 book nodes. All books are merged together and appear as single book to the
  70 user.}
  71 \twocolitem{\windowstyle{wxHF\_ICONS\_BOOK}}{All nodes in contents pane
  72 have a book icon. This is how Microsoft's HTML help viewer behaves.}
  73 \twocolitem{\windowstyle{wxHF\_ICONS\_FOLDER}}{Book nodes in contents pane have
  74 a book icon, book's sections have a folder icon. This is the default.}
  75 \twocolitem{\windowstyle{wxHF\_ICONS\_BOOK\_CHAPTER}}{Both book nodes and
  76 nodes of top-level sections of a book (i.e. chapters) have a book icon,
  77 all other sections (sections, subsections, ...) have a folder icon.}
  78 \twocolitem{\windowstyle{wxHF\_DEFAULT\_STYLE}}{{\tt wxHF\_TOOLBAR | wxHF\_CONTENTS
  79 | wxHF\_INDEX | wxHF\_SEARCH | wxHF\_BOOKMARKS | wxHF\_PRINT}}
  80 \end{twocollist}
  81
  82 \membersection{wxHtmlHelpController::AddBook}\label{wxhtmlhelpcontrolleraddbook}
  83
  84 \func{bool}{AddBook}{\param{const wxFileName\& }{book\_file}, \param{bool }{show\_wait\_msg}}
  85
  86 \func{bool}{AddBook}{\param{const wxString\& }{book\_url}, \param{bool }{show\_wait\_msg}}
  87
  88 Adds book (\helpref{.hhp file}{helpformat} - HTML Help Workshop project file) into the list of loaded books.
  89 This must be called at least once before displaying  any help.
  90
  91 {\it book\_file} or {\it book\_url}  may be either .hhp file or ZIP archive
  92 that contains arbitrary number of .hhp files in
  93 top-level directory. This ZIP archive must have .zip or .htb extension
  94 (the latter stands for "HTML book"). In other words,
  95 {\tt AddBook(wxFileName("help.zip"))}
  96 is possible and, in fact, recommended way.
  97
  98 \wxheading{Parameters}
  99
 100 \docparam{show\_wait\_msg}{If true then a decoration-less window with progress message is displayed.}
 101 \docparam{book\_file}{Help book filename. It is recommended to use this prototype
 102 instead of the one taking URL, because it is less error-prone.}
 103 \docparam{book\_url}{Help book URL (note that syntax of filename and URL is
 104 different on most platforms)}
 105
 106 \wxheading{Note}
 107
 108 Don't forget to install wxFileSystem ZIP handler with
 109 {\tt wxFileSystem::AddHandler(new wxZipFSHandler);} before calling this method
 110 on a .zip or .htb file!
 111
 112 \membersection{wxHtmlHelpController::CreateHelpFrame}\label{wxhtmlhelpcontrollercreatehelpframe}
 113
 114 \func{virtual wxHtmlHelpFrame*}{CreateHelpFrame}{\param{wxHtmlHelpData * }{data}}
 115
 116 This protected virtual method may be overridden so that the controller
 117 uses slightly different frame. See {\it samples/html/helpview} sample for
 118 an example.
 119
 120 \membersection{wxHtmlHelpController::Display}\label{wxhtmlhelpcontrollerdisplay}
 121
 122 \func{void}{Display}{\param{const wxString\& }{x}}
 123
 124 Displays page {\it x}. This is THE important function - it is used to display
 125 the help in application.
 126
 127 You can specify the page in many ways:
 128
 129 \begin{itemize}\itemsep=0pt
 130 \item as direct filename of HTML document
 131 \item as chapter name (from contents) or as a book name
 132 \item as some word from index
 133 \item even as any word (will be searched)
 134 \end{itemize}
 135
 136 Looking for the page runs in these steps:
 137
 138 \begin{enumerate}\itemsep=0pt
 139 \item try to locate file named x (if x is for example "doc/howto.htm")
 140 \item try to open starting page of book named x
 141 \item try to find x in contents (if x is for example "How To ...")
 142 \item try to find x in index (if x is for example "How To ...")
 143 \item switch to Search panel and start searching
 144 \end{enumerate}
 145
 146 \func{void}{Display}{\param{const int }{id}}
 147
 148 This alternative form is used to search help contents by numeric IDs.
 149
 150 \pythonnote{The second form of this method is named DisplayId in
 151 wxPython.}
 152
 153 \membersection{wxHtmlHelpController::DisplayContents}\label{wxhtmlhelpcontrollerdisplaycontents}
 154
 155 \func{void}{DisplayContents}{\void}
 156
 157 Displays help window and focuses contents panel.
 158
 159 \membersection{wxHtmlHelpController::DisplayIndex}\label{wxhtmlhelpcontrollerdisplayindex}
 160
 161 \func{void}{DisplayIndex}{\void}
 162
 163 Displays help window and focuses index panel.
 164
 165 \membersection{wxHtmlHelpController::KeywordSearch}\label{wxhtmlhelpcontrollerkeywordsearch}
 166
 167 \func{bool}{KeywordSearch}{\param{const wxString\& }{keyword}, \param{wxHelpSearchMode }{mode = wxHELP\_SEARCH\_ALL}}
 168
 169 Displays help window, focuses search panel and starts searching.  Returns true
 170 if the keyword was found. Optionally it searches through the index (mode =
 171 wxHELP\_SEARCH\_INDEX), default the content (mode = wxHELP\_SEARCH\_ALL).
 172
 173 {\bf Important:} KeywordSearch searches only pages listed in .hhc file(s).
 174 You should list all pages in the contents file.
 175
 176 \membersection{wxHtmlHelpController::ReadCustomization}\label{wxhtmlhelpcontrollerreadcustomization}
 177
 178 \func{void}{ReadCustomization}{\param{wxConfigBase* }{cfg}, \param{wxString }{path = wxEmptyString}}
 179
 180 Reads the controller's setting (position of window, etc.)
 181
 182 \membersection{wxHtmlHelpController::SetTempDir}\label{wxhtmlhelpcontrollersettempdir}
 183
 184 \func{void}{SetTempDir}{\param{const wxString\& }{path}}
 185
 186 Sets the path for storing temporary files - cached binary versions of index and contents files. These binary
 187 forms are much faster to read. Default value is empty string (empty string means
 188 that no cached data are stored). Note that these files are {\it not}
 189 deleted when program exits.
 190
 191 Once created these cached files will be used in all subsequent executions
 192 of your application. If cached files become older than corresponding .hhp
 193 file (e.g. if you regenerate documentation) it will be refreshed.
 194
 195 \membersection{wxHtmlHelpController::SetTitleFormat}\label{wxhtmlhelpcontrollersettitleformat}
 196
 197 \func{void}{SetTitleFormat}{\param{const wxString\& }{format}}
 198
 199 Sets format of title of the frame. Must contain exactly one "\%s"
 200 (for title of displayed HTML page).
 201
 202 \membersection{wxHtmlHelpController::UseConfig}\label{wxhtmlhelpcontrolleruseconfig}
 203
 204 \func{void}{UseConfig}{\param{wxConfigBase* }{config}, \param{const wxString\& }{rootpath = wxEmptyString}}
 205
 206 Associates {\it config} object with the controller.
 207
 208 If there is associated config object, wxHtmlHelpController automatically
 209 reads and writes settings (including wxHtmlWindow's settings) when needed.
 210
 211 The only thing you must do is create wxConfig object and call UseConfig.
 212
 213 If you do not use {\it UseConfig}, wxHtmlHelpController will use
 214 default wxConfig object if available (for details see
 215 \helpref{wxConfigBase::Get}{wxconfigbaseget} and
 216 \helpref{wxConfigBase::Set}{wxconfigbaseset}).
 217
 218 \membersection{wxHtmlHelpController::WriteCustomization}\label{wxhtmlhelpcontrollerwritecustomization}
 219
 220 \func{void}{WriteCustomization}{\param{wxConfigBase* }{cfg}, \param{wxString }{path = wxEmptyString}}
 221
 222 Stores controllers setting (position of window etc.)
 223