include/wx/generic/helpext.h

   1 /*-*- c++ -*-********************************************************
   2  * exthlp.h - an external help controller for wxWindows             *
   3  *                                                                  *
   4  * (C) 1998 by Karsten Ballüder (Ballueder@usa.net)                 *
   5  *                                                                  *
   6  * $Id$
   7  *******************************************************************/
   8 #ifndef WXXHELP_H
   9 #define WXXHELP_H
  10
  11 #if wxUSE_HELP
  12
  13 #ifdef __GNUG__
  14 #   pragma interface "wxexthlp.h"
  15 #endif
  16
  17 #include "wx/generic/helphtml.h"
  18
  19 #ifndef WXEXTHELP_DEFAULTBROWSER
  20 /// Default browser name.
  21 #   define WXEXTHELP_DEFAULTBROWSER "netscape"
  22 /// Is default browse a variant of netscape?
  23 #   define WXEXTHELP_DEFAULTBROWSER_IS_NETSCAPE TRUE
  24 #endif
  25 /// Name of environment variable to set help browser.
  26 #define   WXEXTHELP_ENVVAR_BROWSER   "WX_HELPBROWSER"
  27 /// Is browser a netscape browser?
  28 #define   WXEXTHELP_ENVVAR_BROWSERISNETSCAPE "WX_HELPBROWSER_NS"
  29
  30
  31 /**
  32    This class implements help via an external browser.
  33    It requires the name of a directory containing the documentation
  34    and a file mapping numerical Section numbers to relative URLS.
  35
  36    The map file contains two or three fields per line:
  37    numeric_id  relative_URL  [; comment/documentation]
  38
  39    The numeric_id is the id used to look up the entry in
  40    DisplaySection()/DisplayBlock(). The relative_URL is a filename of
  41    an html file, relative to the help directory. The optional
  42    comment/documentation field (after a ';') is used for keyword
  43    searches, so some meaningful text here does not hurt.
  44    If the documentation itself contains a ';', only the part before
  45    that will be displayed in the listbox, but all of it used for search.
  46
  47    Lines starting with ';' will be ignored.
  48 */
  49
  50 class wxExtHelpController : public wxHTMLHelpControllerBase
  51 {
  52 DECLARE_CLASS(wxExtHelpController)
  53    public:
  54    wxExtHelpController(void);
  55
  56    /** Tell it which browser to use.
  57        The Netscape support will check whether Netscape is already
  58        running (by looking at the .netscape/lock file in the user's
  59        home directory) and tell it to load the page into the existing
  60        window.
  61        @param browsername The command to call a browser/html viewer.
  62        @param isNetscape Set this to TRUE if the browser is some variant of Netscape.
  63    */
  64    void SetBrowser(wxString const & browsername = WXEXTHELP_DEFAULTBROWSER,
  65                    bool isNetscape = WXEXTHELP_DEFAULTBROWSER_IS_NETSCAPE);
  66  private:
  67    /// How to call the html viewer.
  68    wxString         m_BrowserName;
  69    /// Is the viewer a variant of netscape?
  70    bool             m_BrowserIsNetscape;
  71    /// Call the browser using a relative URL.
  72    bool DisplayHelp(wxString const &);
  73 };
  74
  75 #endif
  76 #endif